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Volume 7, Issue 3, (2019)

Table of Contents

 

 

 

 

Investigation the Antioxidant, Antibacterial and Insecticidal Activities of Cuscuta epithymum and Pyrethrum roseum Plants using Polydimethylsiloxane (CAR/PDMS)

Kamiar Zomorodian, Davoud saeidi, Diba Fani, Fatemeh Tazarvi, Mohammad Reza  Hajinezhad, Seyyed Alireza Hashemi, Ali Mohammad Amani,  Seyyed Mojtaba Mousavi

Volume 7  |  Issue 3 |  Pages: 234-244 | PDF | HTML

 

Abstract: In this study, the antioxidant, anti-fungal and also anti-bacterial content in Cuscuta epithymum and Pyrethrum roseum plants were investigated. The extraction of essences is sensitive to operational conditions. Therefore, the effect of different extraction techniques  by  using HS -SPME fiber assembly Carboxen/​Polydimethylsiloxane (CAR/PDMS), on the quality of essence oil composition was inspected and the composition of  the final product was recognized using gas chromatography and mass spectroscopy.Essential Cuscuta epithymum and Pyrethrum roseum  is widely used in pharmaceutical, sanitary, cosmetic, agriculture and food industries for their bactericidal, virucidal, fungicidal, antiparasitical and insecticidal properties. Their anticancer activity is well documented. The chemical composition of the essential oil from Cuscuta epithymum and Pyrethrum roseum was analyzed by GC-MS.

 

Keyword: antioxidants, antimicrobial, insecticidal activity, Cuscuta epithymum, Pyrethrum roseum

 

 

Preparation of ZnXFe3-XO4@chitosan Nanoparticles As an Adsorbent for Methyl Orange and Phenol  

Mina Gholami, Mohammad Mohammadi, Alireza Zare-Hoseinabadi, Saeed Taghizadeh, Abbas Behzad Behbahani, Rita Arab Solghar, Ali Mohammad Amani

Volume 7  |  Issue 3 |  Pages: 245-249 | PDF | HTML

 

Abstract: We have propounded an easy preparation process for the synthesis of chitosan-covered ZnXFe3-XO4 nanoparticles by the application of FeCl2.4H2O, FeCl3.6H2O, and Zinc Acetate. The synthesized nanoparticles, which went through various analysis methods, including transmission electron microscopy (TEM), scanning electron microscope (SEM), Energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), vibrating-sample magnetometer (VSM), and Fourier transform infrared (FT-IR) spectroscopy, were later on exploited as adsorbent for phenol and Mo contaminations. Trapped within a matrix of chitosan, the synthesized ZnXFe3-XO4 nanoparticles had a size of less than 30nm. The EDS and FTIR analysis methods demonstrated the presence of Zn element inside the structure and the NH2 group on nanoparticles’ surface, respectively. The coated nanoparticles had a magnetic saturation of 60 emu/g. Accordingly, the results showed that the synthesized nanoparticles had a very high capacity phenol and methyl adsorption.

 

Keyword: Ferrite Magnetite, ZnFe2O4, NH2 Magnetic Nanobeads, chitosan

 

 

 

Reducing Carbon Emission by two Dispatching Rules for Multi-Objective Flexible Job Shops

Arash Gholamkhasi, Syed Helmi Bin Syed Hassan, Aini Zuhra bt Abdul kadir

Volume 7  |  Issue 3 |  Pages: 250-259 | PDF | HTML

 

Abstract: Manufacturing direct or indirect is accountable for almost one-third of carbon emission. Carbon eventually has trapped in the atmosphere in the shape of Co2; the dangerous gas that causes climate change and threatens human life. On the other hand, albeit the significant share of flexible job shops in manufacturing systems; few studies have been executed to overcome the carbon emission issue. Thus two fast algorithms called MCT and MCE have been introduced to reduce carbon emission along C-max and total machine workload. Then the results have been examined alongside some well-known meta-heuristic algorithms. Investigating results have shown a reasonable standard deviation; which proves a proper balance in production lines. Furthermore, for most instances, a minimum workload has been reported. Moreover, the completion times were acceptable, as well. Then reported data guaranteed the quality of the offered algorithm regarding time and accuracy. Furthermore, implementing a random operator or hybridizing these methods with meta-heuristics might enhance the performance.

 

Keywords: Environment, Carbon emission, Flexible job shop, Dispatching rules, Multi-objective, Makespan

 

 

 

Water Quality Index (WQI) Assessment along Inland Fresh Waters of Taylor Creek in Bayelsa State, Nigeria

Ayobami Aigberua, Timi Tarawou

Volume 7  |  Issue 3 |  Pages: 260-269 | PDF | HTML

 

Abstract: The overall water quality status of Taylor Creek was determined using water quality index. The river course was characterized by human activities such as artisanal dredging, fish farming, waste dumpsites and farmlands amongst other influences. Samples were collected in the dry season month of December 2018 at two points each across five stations. A total of ten surface water samples were analysed for physicochemical parameters using APHA standard procedures. The assessed water quality parameters depicted the ranges: 73.00 – 79.00 µs/cm EC, 40.20 – 43.65 mg/l TDS, 5.85 – 6.20 pH, 7.00 – 8.00 mg/l TA, 12.00 – 16.50 mg/l TH, 2.10 - 2.73 mg/l Ca, 0.58 – 1.07 mg/l Mg, 6.20 – 8.50 mg/l DO, 16.50 – 24.74 mg/l Cl-, 3.00 – 3.60 mg/l NO3- and 0.50 – 1.71 mg/l BOD5. Only two water parameters depicted significant difference (P<0.05) with the trend: Ca < BOD5 while significant variation (P<0.05) among sample locations revealed the trend: Ogboloma > Okolobiri > Obunagha = Koroama > Polaku. EC showed strong positive correlation with TDS while NO3- showed the most positive correlation; its positive correlations with pH, TA, Cl-, DO and BOD depicts it as an important water quality indicator. Deterioration in water quality status depicted the trend: Koroama < Obunagha < Polaku < Ogboloma < Okolobiri. WQI assessment showed that the water environment was of poor quality which may portend adverse health risks to members of the public who consume it. Consequently, the Creek should be monitored regularly to evaluate trends, establish baseline information and guide against pollution-encroaching activities.

 

Keywords: Taylor creek, dissolved oxygen (DO), American Public Health Association (APHA), biochemical oxygen demand (BOD), nitrate (NO3-)

 

 

 

Prevalence and Antibiotic Resistance Profiles of Serotypes of Shigella Species isolated from Community Children in Odeda Local Government, Ogun State.

Ajayi, O.I., Ojo, D.A., Akinduti, P.A., Akintokun, A.K., Akinrotoye, K.P.

Volume 7  |  Issue 3 |  Pages: 270-281 | PDF | HTML

 

Abstract: Shigellosis (bacillary dysentery) has been a menace that has eaten so deep into the bone marrow of children’s health majorly in developing countries worldwide. The symptom ranges from mild diarrhoea to severe dysentery. The infection is of general health concern which is common in communities with inadequate and proper hygiene, lacking portable water. This study therefore addressed the preponderance and antibiotic resistance profiles of different serotypes of Shigella species gotten from stool samples of 248 school children among selected communities in Odeda Local Government Area of Ogun State, Nigeria. The stool samples were cultured in Glucose nutrient broth and later sub-cultured for Shigella species using MacConkey, Desoxycholate citrate agar, Salmonella-Shigella agar. The obtained bacterial isolates were phenotypically characterized using morphological and biochemical methods. Antibiotic susceptibleness of isolates was performed by Kirby-Bauer’s disc diffusion method while their Multiple Antibiotic Resistance index (MARI) was determined in addition to their hemolytic pattern on blood agar. Data obtained were methodically examined and analyzed using One-way Analysis of Variance (ANOVA). From the 248 stool samples cultured, 275 bacteria of different categories were isolated of which Shigella spp was isolated in 10 samples representing 4.03 % prevalence. The Shigella isolates revealed susceptibleness of 80 % to Pefloxacin, Ciprofloxacin, Ofloxacin and 100 % resistance to Augmentin, Nitrofurantoin and Amoxycillin. High Multiple Antibiotic Revealed was High Multiple Antibiotics Resistance index greater than 0.2 in all the Shigella isolates while 4 out of ten isolates showed partial α-hemolytic reaction representing 40 % and the remaining 6 representing 60 % showed γ- hemolytic reaction. The low prevalence of Shigella isolates was not significant with sex, age group, social stratification, religion and educational level of the primary school learners (P>0.05). The need for urgent preventive measures, regulation of antibiotic usage and enforcement of safety hygiene is advocated.

 

Keywords: Antimicrobial Resistance, Shigella spp, Prevalence, Community Children, Public Health

 

 

Awareness on Medical Waste Management and Occupational Health Safety among the Employees Related to Medical Services at Upazila Level in Bangladesh

Kazi Shamima Akter, Shaikh Mohammad Shamim Reza

Volume 7  |  Issue 3 |  Pages: 282-288 | PDF | HTML

 

Abstract: The proper knowledge in waste management is a vital requirement the proper waste management.  Whereas the number of Healthcare Establishments (HCEs) is increasing day by day at upazila level, it is necessary to evaluate the level of knowledge on medical waste management of the employee related to medical services. It is also necessary to find the occupational health safety practices among the employees. In this study, Singra Upazila of Natore district in Rajshahi division has been selected to achieve the objectives of the study. A total 40 numbers of HCEs was selected in the study area. To find the level of knowledge in Medical Waste Management (MWM) practices, a questionnaire survey was conducted among the employees of the selected HCEs. The questionnaire also helped to find the occupational health safety practice and the difficulties faced by the employees. After getting all the data from field observation and questionnaire survey, the results are accumulated by using SPSS software. After that, results were presented by tables and bar charts. It was found that, hands on training played an important role in both knowledge level of employees and occupational health safety practices. It was also found that all the non-government employees are non-trained. On the other hand, most of government employees are trained and only a few were non-trained. So, the comparison between government and non-government can consider as the comparison between trained and non-trained employee. The knowledge level of government HCE’s employees found higher than the private HCE’s employees. The government HCE’s employees were also more aware about occupational health safety practices. So, they had less injuries the private HCE’s employees. Workers were facing different types of difficulties as well as occupational health hazard in both types of HCEs. Finally it was recommended that, to run a proper waste management system, the employees will need hands on training on it.

 

Keywords: Medical Waste, Hazardous waste, Rural Health Care, Awareness, Knowledge, Occupational health safety

 

 

 

Application of Cementation Technology in a Chemical Recycle Plant Treating Waste Copper-Bearing Solution from Micro-Etching Processes

Nan-Min Wu and Wen-Chin Chen

Volume 7  |  Issue 3 |  Pages: 289-294 | PDF | HTML

 

Abstract: Waste copper-bearing solution generated from the micro-etching process of printed circuit boards (PCBs) was studied using cementation technology in a chemical recycle plant.  Operation parameters include initial copper ion concentrations (15, 23, 30 g/L) and pH values (pH = 1, 2, 3, 4) were assessed.  Results showed that, within the range from 15 to 30 g/L of copper ion concentration, the reaction rate decreased with increasing the initial concentration.  In addition, the higher the pH value the slower the copper cementation rate.  And at pH = 4, the rate is as low as about 40 %, compared to the other pH values.  It is attributed that, presumably as the pH of the solution increases, the copper hydroxide may be deposited onto the iron sheet surface to form a passivation layer, resulting in the blocking of solid-liquid interface mass transfer.  Results from mass balance calculations indicated that the unit operation of the plant was quite in agreement with expectations.  However, the average resource conversion rate (RCR) was at 58.7%.  In order to increase the resource conversion rate, it is suggested that either a reduction of water consumption or a water recycling program to the process should be taken into consideration to increase the RCR.  The result of this study is beneficial to shorten the gap between theoretical research and practical operations for chemical recycle plant that is positive to industrial waste reduction and resource sustainability.

 

Keywords: Micro-etching, cementation technology, passivation, mass balance, resource conversion rate

 

 

 

SPT Based Soil Liquefaction Susceptibility Assessment: A Review

Sarah Tahsin Noor, Sherajul Islam, Shaikh Mohammad Shamim Reza

Volume 7  |  Issue 3 |  Pages: 295-299 | PDF | HTML

 

Abstract: Development projects in the low land areas are frequently carried out in Bangladesh after filled lands. Bangladesh lies in the seismic active zone. Therefore, during the earthquake, severe shaking or liquefaction of the ground may be experienced in these areas due to the presence of thick loose sand bed. When the loose sand is saturated and under moderate to high shear stresses, such as beneath a foundation or sloping ground, large shear deformations or even flow failure may take place due to the loss of shear strength accompanied by the softening. This paper presents the results of a study carried out to examine the variation of different variable parameters in the cyclic stress-based method while evaluating the liquefaction potential. The risk of liquefaction in Bangladesh and the issues that are needed to be addressed in evaluation in liquefaction evaluation are also discussed. The output of the study will enable the practicing engineer to assess liquefaction susceptibility of the construction site from the borehole data.

 

Keywords: liquefaction, SPT, cyclic stress ratio, cyclic resistance ratio

 

 

 

Experimental Studies of Strength and Cost Analysis of Mortar Using Bagasse Waste Obtained from Sugarcane Factory of Bangladesh

Shaikh Mohammad Shamim Reza

Volume 7  |  Issue 3 |  Pages: 300-305 | PDF | HTML

 

Abstract: Sugarcane bagasse is an available waste material in Bangladesh which is a by-product of sugar factories. Proper uses of bagasse ash in cement mortar may give the optimum solution for environmental issues. Whereas the construction industry is rapidly expanding in Bangladesh, so the country needs a large amount of cement. In this study Sugarcane bagasse ash (SCBA) was used to replace some part of Ordinary Portland Cement (OPC) and Portland Composite Cement (PCC) in the mortar. Bagasse sample was collected from Natore sugar mill. After collection, bagasse was dried in sun for a week and then it burned in at 800°C to 1000°C temperature for 20 minutes. OPC and PCC was replaced by SCBA at different percentage ratios at 0%, 5%, 7.5%, 10%, 12.5%, 15%, 17.5%, 20%, 22.5%, 25%, 27.5% and 30%. The compressive strengths of different mortar with SCBA addition were also investigated. Strength was tested for 3, 7 and 28 days. The test results indicated that up to 30% replacement of OPC by Sugarcane bagasse ash (SCBA) in mortar satisfied the BNBC (2006) code. On the other hand, up to 27.5% replacement of PCC by SCBA in the mortar was satisfied by code. Cost analysis showed the economic advantages of using SCBA. For OPC-SCBA mortar the cost was reduced over 20%. On the other hand, the cost was reduced by almost 20% for PCC-SCBA mortar. Use of SCBA can also reduce the waste disposal problems of the sugarcane industries.

 

Keywords: Industrial Waste, Sugarcane Bagasse, Ash, Cement Mortar, Pozzolanic material, Cement replacement, Sustainable, Compressive strength, Cost effective

 

 

 

Energy Consumption Policy, GHG Emissions and Climate Change Impact in Algeria

Abdelkarim Mellah, Youcef Abdelhafid, Ahmed Benmalek

Volume 7  |  Issue 3 |  Pages: 306-315 | PDF | HTML

 

Abstract: In recent years, the phenomenon of climate change has become very remarkable in Algeria, given its recorded effects on the temperature and precipitation. Algeria is among the top 50 countries at high risk of climate change, with a vulnerability index of 7.63%, because of its geographical position and climatic characteristics. This climate change leads to major risks in Algeria such as the displacement of sub-Saharan diseases like malaria, typhoid, and viral hepatitis, etc..., phenomenon of colored waters on the coast, drought on wide ranges, coastal erosion is also very marked, which may cause flood risks threatening in some regions. In this work, we present an analysis of GHG emissions as the main culprit in the phenomenon of climate change in Algeria compared to other countries. We analysis as well the national strategy to reduce GHG emissions and its plans of mitigation, adaptation, and the implementation of the program of renewable energies development and energy efficiency, whose offer a great potential for GHG mitigation. The analyses of data of temperature and rainfall from 2009 to 2018 show a clear tendency towards decreasing rainfall and increasing average temperatures in north and south of Algeria.

 

Keywords: CO2 emissions, climate change, renewable energy, economic growth, Algeria.

 

 

 

Critical Issues of Present Medical Waste Management Practice in Rajshahi City and its Improvement Strategies

Md. Niamul Bari, Mir Md. Abdul Hannan, Md. Zahanggir Alam, Md. Annaduzzaman

Volume 7  |  Issue 3 |  Pages: 316-323 | PDF | HTML

 

Abstract: The study was conducted to evaluate medical waste management practices and to determine the critical issues in medical waste management in Rajshahi City. A survey was conducted to collect information about the practices related to waste segregation, collection procedures, types of onsite storage containers, onsite handling, processing and storage, primary dumping point, transfer and transport, treatment of wastes, and final disposal options. This study indicates that the rate of medical waste generation varies among health care establishment as 336.23 kg/day, 7.14 kg/day, 2.11 kg/day, 3.92 kg/day, 1.21 kg/day and 15.05 kg/day at Rajshahi Medical College Hospital, Christian Mission Hospital, Al-Madina Clinic, Mohanagar Clinic, Rajshahi Dental College and Popular Diagnostic Center, respectively. The highest 15 types of wastes are analyzed from wastes generated in Rajshahi medical college hospital. However, only two to six types of wastes are obtained in other health care facilities. The critical issues identified from this study are not accumulation of all types of wastes in every hospital, colour containers are not always used by many hospitals, collection of wastes from source of generation is not properly performed, primary dumping site is not cleaned after transferring and transporting the waste, there is no incinerator except Rajshahi Medical College Hospital and it is not used regularly, hazardous wastes are burnt in open place. Rajshahi City Corporation, the waste management authority, has no treatment and disposal facility for medical wastes. The wastes collected from all health care facilities are dumped by municipal authority along with the municipal solid wastes by open dumping method. From this study it can be mentioned that there is an urgent need to take immediate action for raising awareness and education on medical waste management issues. Moreover, trained and skilled medical wastes management workers are essential in Rajshahi City.

 

Keywords: Medical waste, Hazardous, management, Critical issues, Improvement

 

 

 

Modeling of Adsorption in a Packed Bed Tower, the Case Study of Methane Removal and Parametric Calculation

Abdollah Norouzi

 Volume 7  |  Issue 3 |  Pages: 324-333 | PDF | HTML

 

Abstract: In this work, the modeling of methane adsorption in a tower with fixed bed has been studied. In order to present a mathematical model, the mass balance was written in the tower. The obtained equations with the assumption of no changes in the concentration, temperature, and pressure in the radial direction as well as the axial dispersion of the flow pattern were solved by using numerical methods. Among various numerical methods, an implicit finite difference method was used to solve the equations. Base on the obtained model, the effect of temperature, inlet flow rate, bed length, and pressure on the adsorption tower was investigated. It was observed that with the temperature decreases, the adsorption rate increases. At a specified time, the amount of adsorbate in the gas phase at the outlet of the bed from 306 to 295 decreased by changing the temperature from T=298K to T=308K. also, the effect of pressure, gas velocity, adsorbent size and bed length in separate diagrams was studied and it was determined that with increasing pressure, decreasing gas velocity, increasing bed length and decreasing adsorbent size and adsorption rate increase.

 

Keywords: Adsorption, Modeling, Methane, Packed bed tower, fixed bed.

 

 

 

Integrated Nutrient Management of Organic and Bio-Fertilizer to Enhance Maize Production

Magda, H. Mohamed, Nabila, M. Zaki, M. S. Hassanein, Amal, G. Ahmed, and M. M. Tawfik

 Volume 7  |  Issue 3 |  Pages: 334-340 | PDF | HTML

 

Abstract: Integrated nutrient management (INM) is the concept of using a combination of organic, inorganic, and biological amendments to increase nitrogen use efficiency (NUE) and reduce nutrient loss by synchronizing crop demand with nutrient availability in soil. In order to produce more food with limited space, farmers utilize several techniques. One of the best techniques is application of different types of organic and biofertilizers in soil in integrated nutrient management system and consequently maintain the soil nutrients level. It allows plant to grow, flourish, and keep the environment save. Importance of maize (Zea mays L.) crop is justified by its nutritious content especially because of the presence of high protein, minerals, vitamins and other energetic nutrients. In Egypt, maize production is insufficient, so various strategies have been developed to improve its production. In order to study the promoting effect of organic and biofertilizer on growth and yield of maize plant, a field experiment was conducted in Wadi El-Rayan, Fayoum Governorate, Egypt, during the two successive seasons of 2014 and 2015 to study the impact of organic or/and bio-fertilizer on growth, yield and its components and some chemical contents of two maize cultivars. The present study indicate that organic or/and bio-fertilizer had a positive effect on growth parameters. Yield and its components characters i.e. plant height (cm), number of rows per ear, length and diameter of ear, grain and straw yield per plant (g), seed index, grain, straw and biological yields (ton/fad.) of maize were also enhanced with organic or/and bio-fertilizer application. There were significant differences between two maize cultivars in growth parameters, yield and its components expect harvest index. The highest values of number of rows per ear (23.37), length of ear (22.517 cm ), diameter of ear (6.36cm ), grain yield per plant (151.67g) and straw yield per plant  (262.33g) were recorded in High tech-2031 cultivar fertilized under 10 ton/fad. pigeon manure + foliar application of yeast bread. High tech-2031 cultivar fertilized with 10 ton/fad. pigeon manure + foliar application of yeast bread produced the highest value of carbohydrate and protein % in the grains.

 

Keywords: Maize, growth, yield, cultivars, organic or/ and bio-fertilizer

 

 

 

CO2 Removal from Gas Mixtures by Aqueous Solutions of MEA and (MEA+AEEA) and Results Comparing Using the Modified Kent-Eisenberg Model

Nasibeh Alishvandi, Alireza Jahangiri

Volume 7  |  Issue 3 |  Pages: 341-348 | PDF | HTML

 

Abstract: Considering the growing importance of alkanolamine aqueous solvents in gas refineries or other powerhouses, it is essential to achieve the appropriate solution for CO2 absorption. This requires to produce systematic vapor-liquid equilibrium data in a wide range of temperature, CO2 partial pressure and different alkanolamines concentration. In this research with the application of equilibrium pilot plant in local atmospheric pressure, CO2 solubility data have been reported in MEA solvent and its blend with AEEA in temperatures (303, 313 and 323) K, CO2 partial pressures of (8.44, 25.33 and 42.22) kPa, concentrations of 12 wt% for MEA and (12+1, 12+2 and12+3) wt% for (MEA+AEEA). The measured solubility was then predicted by the theoretical model of modified Kent Eisenberg. The constant parameters of the apparent equilibrium for the porotonation and carbamate reaction in the Modified Kent Eisenberg model were optimized with the MATLAB software. It was conclude that CO2 solubility values in all the studied experiments increased with increasing CO2 partial pressure while increasing temperature and solvent concentration decreased the solubility. The comparison between the CO2 absorption into the MEA solvent alone and AEEA activated MEA shows that (MEA+AEEA) blend in compare to the single MEA has a higher CO2 loading. Also %AAD values for the solubility of MEA and (MEA+AEEA) were found to be 3 and 17.28 respectively.

Keywords: CO2 solubility, MEA, AEEA, Modified Kent–Eisenberg model, correlation

 

 

 

In-Silico Molecular Docking Study of Coumarin Derivatives in order to Investigate the Inhibitory Effects of Human Monoamine Oxidase Enzyme and DFT Studies

Marzieh Asadi, Moslem Sedaghat, Zahra Sasani Pour, Ali Mohammad Amani, Ahmad Movahedpour, Sina Vakili, Marzieh Shefaghat, Mahsa Maleknia, Saam Noroozi

Volume 7  |  Issue 3 |  Pages: 349-356 | PDF | HTML

 

Abstract: In the present study, DFT calculations of four coumarin derivatives and also their molecular docking with “human monoamine oxidase enzyme” (HMAO) were performed in order to study the inhibitory effect of these compounds. The optimized molecular geometries and vibrational frequencies were calculated at the B3LYP/6-31+G(d) level of theory without any imaginary frequency. The total energy, dipole moment and energies of the frontier molecular orbitals were calculated for all the compounds. All quantum calculations were performed using the Gaussian 03 software. The molecular docking of coumarin derivatives and phenelzine with HMAO enzyme were calculated and inhibitory effect of coumarins were compared with phenelzine. Also the binding free energy, amino acid residue and hydrogen bond interactions between all the compounds and HMAO enzyme were calculated. The binding energies for coumarins and Phenelzine are in the range of 7.04 – -6.15 Kcal/mol. The binding energy potency follows the order of: 4>2>3>1> Phenelzine. The binding energy of all the compounds with HMAO enzyme was stronger than Phenelzine.

 

Keywords: Coumarin, antidepressant, Monoamine oxidase, DFT study, molecular docking

 

 

 

Characterization of Highly Active Keratinase Procuder Bacillus cereus KK69 for Biological Degradation of Feather Waste

Kerem Kaya, Emrah Nikerel

Volume 7  |  Issue 3 |  Pages: 357-363 | PDF | HTML

 

Abstract: A Bacillus cereus species, with highly active keratinase have been isolated from chicken feather waste. The keratinase is used to valorise feather containing approximately 90% protein, mostly keratin which is hard-to-degrade and insoluble in water. Although there are many old methods for decomposing feather such as incineration, burying, and chemically, enzymes have shown that are to be useful. This study focuses on characterizing the microorganism and its keratinase enzyme where the microorganism that produces enzyme can degrade more than 90% of the initial chicken feather in 2 days. Optimum working conditions of the enzyme is determined. Enzyme shows maximum activity at pH 9 and 50ºC. Bioinformatic analysis of Bacillus cereus KK69 genome revealed that there are many possible proteases for degradation of feather. Comparing to literature, this microorganism have displayed that produces highly active keratinase. Beside proteases, industrially important other enzymes also have been screened from annotations.

 

Keywords: Bacillus cereus, Industrial biotechnology, Chicken feather degradation, Protease, Keratinase enzyme

 

 

 

The Effects of ZnO Nanoparticles and ZnO/Chitosan NCs on Liver Histology and Serum Parameters in Rats

Hajinezhad MR

Volume 7  |  Issue 3 |  Pages: 364-369 | PDF | HTML

 

Abstract: There are conflicting and confusing reports about prooxidant/ activities of Zinc oxide nanoparticles and Zinc oxide NCs. This study aimed to resolve these discrepancies by examining the effects of these compounds on liver histopathology in healthy rats. 42 adult male Wistar rats were divided into 7 groups. Rats in the treatment group received intraperitoneal injections of ZnO nanoparticles 10, 20 and 40 mmol/ml) and ZnO nanocomposites (NCs) (10, 20 and 40 mmol/ml) for 28 days. Control rats received distilled water. At the end of the study, the following parameters were assessed: serum liver enzymes (ALT and AST), the activity of serum catalase (CAT) and superoxide dismutase (SOD), serum BUN and serum creatinine and liver histology. Intraperitoneal injection of ZnO nanoparticles at a concentration of 10 mmol/ml/day had no significant effect on serum liver enzymes but at 20 and 40 mmol/ml/day significantly decreased serum catalase and SOD activity compared with the control group (P<0.05). ZnO NCs at the concentrations of 20 and 40mmol/ml/day decreased serum catalase activity and SOD activities and significantly elevates serum liver enzymes. Furthermore, both ZnO nanoparticles and ZnO NCs had no significant effect on serum BUN and creatinine levels. Both nanoparticles induced severe histological changes at the two higher doses (20 and 40 mmol/ml). The results suggest that proper concentrations of ZnO nanoparticles and ZnO NCs have no toxic effects on the liver while the higher doses can induce severe histological changes.

 

Keywords: ZnO nanoparticles, ZnO NCs, serum biochemical parameters, Rat

 

 

 

Mathematical and Instrumental Methods for Assesing the Economic Efficiency of Science Product for Export

Svetlana V. Veretekhina, Maxim A. Kudryavtsev, Vladimir L. Simonov, Sergey A. Makushkin, Tatyana V. Karyagina

Volume 7  |  Issue 3 |  Pages: 370-376 | PDF | HTML

 

Abstract:  The relevance of the study is due to the needs of using standardized Russian methods of calculating the unit cost of maintenance of exported science-intensive products. The authors bring to the discussion the hypothesis that the price of the exported science-intensive products does not dominate in the market however technologies of information support of science-intensive products at the object of operation dominate. Exporting a series of products to Indonesia is described by the calculations of maintenance examples at the facility. The methods of measurement, description and modeling were used in the calculations. In the first part of the article, authors classify the activities of the integrated logistics support and the elements of the maintenance Scenario. Calculations are based on the list of the main Russian standards for exporting products. The indicators for the assessment of initial maintenance cost are defined. The article determines the effective use of science-intensive products at the site of operation possibility in the presence of trained technical personnel from the customer's country (Indonesia). The calculations determine the number of specialties of engineering staff required to perform maintenance and repair the product. Mathematical modeling service cost of the service is carried out for the products delivered for export. The purpose of the article is to reduce the cost of the service maintenance on the territory of the Customer (Indonesia), in terms of reducing the technical personnel training cost. The calculation methods recommended by Russian national standard GOST R 56130-2014 was used in the article. The research was aimed at identifying unnecessary cost, while maintaining the performance quality of the product at the facility. The calculations show how to use standardized methods effectively. The main purpose of this publication is to develop methodological provisions for the analysis of economic processes and systems based on the use of economic and mathematical methods and tools.

 

Keywords: Methods of Unit Cost Calculation, Efficiency, Integrated Logistics Support, Mathematical Modeling, Cooperation between Russia and Indonesia.

 

 

 

State and Prospects of Development of Welfare Economics in Ukraine

Olha Koicheva, Bilokur Yevheniia, Nehara Rodion

Volume 7  |  Issue 3 |  Pages: 377-382 | PDF | HTML

 

Abstract: The desire to become an integral part of the European community demands from Ukraine to comply with certain requirements and to conform to the established standards. One of the criteria for compliance is the developed economy, which ensures the interests of the state as a whole and of each member of society separately. For many years our state has been trying to take its "place in the sun" where all its citizens will do well, and everyone will be able to meet his or her needs, despite the fact that they all are different. Ukraine, like almost all post-Soviet states, refers to developing countries, and this factor must necessarily be taken into account when building the modern economy of the country. The economic welfare of a person is determined by many socio-economic factors, such as: level and quality of life, the provision of necessary vital goods, the amount of wages agreed with the necessary and desirable needs. The most important indicator of economic prosperity is the level and quality of life. It is the quality of life that determines the level of provision, the abundance not only of individual citizens, but also of the country, of the nation as a whole. The definition of "welfare" should be traditionally understood as the correspondence between the volume of goods and the volume of needs, the level of implementation of which depends on the level of their manifestation, which is formed under the influence of both internal and external factors, and the financial support necessary for their satisfaction. Factors influencing the presence or absence of welfare and determining its level can be divided into: subjective –psychological features, upbringing, education, environment, outlook, mentality, and objective –the urgent problems of time, the dominant ideology, the type of economic system, economic expectations, and the impact of scientific and technological progress. The urgency of the study of the feasibility of the welfare economics is stipulated by the urgent need to improve living standards through the implementation of the specified model of economics in Ukrainian society, which is currently in a deep protracted crisis, constantly faced with the difficulties of the transition period, the emigration of the able-bodied population and other factors that negatively affect the level of life of the population.

 

Keywords: Economics Of Welfare, Happiness, Living Standards Of Population, Economic Needs, Human Factor.

 

 

 

Theoretical Aspects of Anti-Corruption Enlightenment as Factor of System Increase of Efficiency of Activity of Federal Executive Authorities (On the Example of the Federal Bailiff Service of Russia)

Elena B. Kozlova, Vladimir A. Gureev, Marina N. Ilyushina, Zemfira M. Kazachkova, Elena V. Fomenko

Volume 7  |  Issue 3 |  Pages: 383-388 | PDF | HTML

 

Abstract: Relevance of the research problem due to increased theoretical and legal principles in understanding the condition and the level of corruption in the Russian Federation in conjunction with the teleological context of development of legal consciousness and legal mentality and anti-corruption enlightenment, acting as factor reducing corruption risks and the system increasing of activity efficiency of Executive Power’s Federal bodies. In this regard, this article aims to identify patterns and correlating factors determining the impact of anti-corruption enlightenment to improve the efficiency of the Federal bailiff service, taking into account the main activity of the service - enforcement of acts of jurisdictional bodies, which is characterized by a high level of corruption risks. The leading approach to the study of this problem is a scientific-oriented desire to use a set of basic methods of obtaining new knowledge, taking into account General scientific and private scientific methods that allow a comprehensive review of the most important theoretical aspects of anti-corruption enlightenment in the context of the legal relations studied in the work. The article reveals and substantiates the regularities of the theoretical level of understanding of the problems of anti-corruption enlightenment as one of the factors of systemic improvement of the efficiency of the Federal Executive bodies (on the example of the Federal bailiff service). The materials of the study presented for publication, their results and conclusions can be useful in the in-depth study of certain problems of public administration and the search for ways to solve them effectively; the development and practical application of methods to improve the efficiency of the Federal Executive authorities; and can also be used in the course of work to improve the theoretical foundations and enhance practical activities in the field of combating corruption. The novelty and originality of the study lies in the fact that for the first time it attempts to conceptualize the importance of anti-corruption enlightenment as one of the factors that can have a devastating impact on the components of the institutional framework of corruption, which will allow in the foreseeable future to improve the efficiency of the Federal bailiff service.

 

Keywords: Corruption, Anti-corruption enlightenment, Anti-corruption mentality, Public service, Bailiff.

 

 

 

Healthy Lifestyle and Social Networks: Trajectory of Their Intersections in Student Life

Guseyn B. Magomedov, Elena V. Veretennikova, Sergey V. Ulyankin, Stanislav E. Martynenko, Tatyana G. Ilkevich, Inessa S. Karnaukh, Liliya V. Borisova

Volume 7  |  Issue 3 |  Pages: 389-393 | PDF | HTML

 

Abstract : The relevance of this article is the need to analyze and study the integration of healthy lifestyles and social networks, which leads to serious changes in the protection and promotion of student health. Modern information-based society opens up new horizons for the system of a healthy lifestyle and social networks that can change many aspects of student life. The aim of the study is to analyze the effectiveness of interaction between social networks and healthy lifestyles of students. The leading methods for the study of this problem is the method of questioning, which allows to analyze the effectiveness of the interaction of social networks and healthy lifestyles of students, to get acquainted with the meanings that informants give to their activities, and to make it possible to get their explanations of what is happening. The article deals with theoretical and methodological aspects of students' perception of a healthy lifestyle presented in social networks. The degree of importance of communities on a healthy lifestyle in the social network Vkontakte is determined. It is established that the community on a healthy lifestyle are of big value for students, and the information that is presented in these groups is useful for them and they use it in practice. It is revealed that when choosing groups, students more often pay attention to the number of participants and content. It is defined that students look through posts in groups on a healthy lifestyle in Vkontakte daily, but they have no experience of communication with like-minded people. The novelty and originality of the study lies in the fact that it is shown that at present, social networks and healthy lifestyles interact closely: in social networks there is a large amount of information, in particular, in groups on healthy lifestyles, but this information is often not motivating for students to act. Some students argue that the main motivation for a healthy lifestyle is their reflection in the mirror, and social networks are a tool for achieving positive results. Among the users of social networks there is a subgroup for which social networks are just a source of useful information, but do not motivate to act. It is shown that the main aspects of a healthy lifestyle in social networks are sports, proper nutrition, and rejection of bad habits. Many students are interested in only one of the areas of a healthy lifestyle. It is determined that students support the promotion of a healthy lifestyle, but Express concerns about the quality of information. The data obtained in the work can be used in value-ology, social psychology, pedagogy, age psychology, sociology, as well as for further theoretical development of this issue.

 

Keywords: Student Youth, Healthy Lifestyle, Social Networks.

 

 

 

Transformation of Student Everyday Communication under New Media Influence

Bika B. Dzhamalova, Irina V. Leusenko, Rim F. Shaekhov, Boris V. Ilkevich, Vladislav F. Antonov, Natalia V. Kovaleva, Guzel B. Sayfutdinova

Volume 7  |  Issue 3 |  Pages: 394-398 | PDF | HTML

 

Abstract: Relevance of the research: the Relevance of this article is to understand the revolutionary changes taking place in everyday communication in the era of Informatization, both at the level of global trends and at the level of everyday practices and meanings, as the information society is characterized by the lack of authority, stability, clear rules, social patterns that can be followed. It is thoroughly imbued with the idea of multi-variance and extreme individualization. The aim of the study is to analyze the process of transformation of everyday communication under the influence of the Internet among students. Research methods: the Leading method for the study of this problem is the interview method, which allows analyzing the process of transformation of daily communications of young people under the influence of new media, to establish the impact of Internet technologies on communication and connection with the close environment. Results: The article describes the main theoretical approaches to the definition and problems of new media. The role of new media and the Internet in the context of the information society is analyzed. The influence of new media on everyday communication practices of students-Internet users is defined. The daily practice of communication of young people is described.  The novelty and originality of the study is that it is shown that among young people there is an active desire for personal communication and contrary to all expectations, the use of social networks for professional purposes (dialogue with colleagues) and entertainment (watching videos, listening to audio). Users of this age group actively use the opportunity to produce their lives on a personal page in various social networks, posting photos of significant pleasant events, themselves in a decent appearance and surrounded by acceptable-looking people. It is found that social networks are actively used by informants to track the events of the personal life of other users familiar to them in the real space. Users see great advantages in the presence of remote technologies that allow them to communicate with their relatives and friends, with whom frequent personal meetings are impossible, but here they assume the opposite - the substitution of personal meetings with video communication, which is undoubtedly, from their point of view - a minus. The advantages include the possibility of a more careful choice of the interlocutor and voicing the original purpose of communication in the network space, the disadvantages - the probability of behavioral adjustment of both interlocutors, as well as the lack of an opportunity to understand and see the emotions of a person. Practical significance: the data obtained in the work can be used in age psychology, ethno-psychology, social psychology, pedagogy, sociology, as well as for further theoretical development of this issue.

 

Keywords: Internet users, communication practices, social networks, new media.

 

 

 

The Real and the Ideal Student Image for Teacher: Similarities and Differences

 Patimat Sh. Alieva, Pari G. Shuaipova, Rimma R. Khanmurzina, Valentin V. Matvienko, Olga V. Popova, Irina A. Admiralova, Mikhail V. Kostennikov

Volume 7  |  Issue 3 |  Pages: 399-403 | PDF | HTML

 

Abstract: Relevance of the research: the Relevance of the topic is conditioned by the fact that in the process of learning in higher education there is further socialization, personal growth and professional development of a young man. The formation of the image of the student is largely determined by the requirements that employers and modern workplaces will impose on young professionals, so the study of the image of the student is not only of certain scientific interest, but also of undoubted practical importance. In this regard, it is of particular importance to study the image of students through the eyes of teachers, as it is they who train future specialists. The aim of the study is to analyze the real and ideal image of the student through the eyes of teachers. Research methods: the Leading method for the study of this problem is the interview method, which allows analyzing the teachers' ideas about the attitude to learning, the relationship between them and the teacher of an ideal and real student. The results of the study: the paper compares the images of the ideal and the real student in the eyes of the teacher. It allocates differences between the ideal and the real image of the student according to the criteria: attitude to study; level of knowledge; relationship between students; attitude to teachers. The novelty and originality of the study lies in the fact that the differences between the real and the ideal image of the student in the views of teachers are shown. It is allocated that according to teachers the level of knowledge of students significantly decreases, and from year to year. They have been observing this negative trend for quite a long time. It is revealed that teachers do not see serious conflicts and are satisfied with the atmosphere in student groups. It is determined that the attitude of students directly to the teaching staff is mostly respectful, the student feels that the teacher is a step higher, but, nevertheless, are not afraid to ask a question when something is unclear. The ideal image of the student for the teacher is defined: the students' attitude to educational activity must depend on a high level of motivation; the student must learn new things because of their own interest; the main indicator of the ideal level of knowledge is that the student will be able to apply their knowledge and skills in practice; it is not necessary to create student groups like family, first of all, it should be a business relationship based on cooperation and mutual support; ideal relationships between students and teachers are defined as readiness for partnership, understanding of the principles of organization of the learning process, readiness for constant dialogue. Practical significance: the data obtained in the work can be used in the psychology of labor, social psychology, pedagogy, age psychology, sociology, as well as for the further theoretical development of this issue.

 

Keywords: Student Youth, Ideal and Real Image, Teacher

 

 

 

Socio-Cultural Potential  and Quality of Region’s Innovational Development  

Andrey A. Lezhebokov, Ekaterina V. Kargapolova, Nadezhda V. Dulina, Svetlana V. Alieva, Stanislav V. Kargapolov

Volume 7  |  Issue 3 |  Pages: 404-408 | PDF | HTML

 

Abstract: Purpose of the study: The article is devoted to studying the peculiarities of mutual influence of the socio-cultural features of regional society and quality of innovational processes. The perspectives of cultural and ideological changes of the basic institutes of the society, including the ideological concepts, are studied for intensification and improvement of innovational development quality. Methodology: The theoretical basis of the article is the works in the sphere of innovations. The works are devoted to analysis of the stages of innovational development and the problems of this process in the modern society. The ideas devoted to determining the features of innovational person, allowed studying the readiness of region’s population for innovational activities. The article also uses the research tradition according to which the economic and managerial processes are studied in their socio-cultural aspect. Results: It is noted that the main trends of the culture policy are still connected to development of the institutes of civil society and formation of middle class.  In many ways, the quality of modernization processes is determined by positive activity of the most energetic managers. Applied studies of the situation show that certain regions can have large advantage in the process of implementation of innovations and scientific developments as compared to adjacent regions, but their contribution into innovational development of society on the whole could be low as compared to the centers of technological progress. Very often, high potential and readiness of the population to improve the quality of innovational activities are blocked by the existing socio-economic conditions and regional economic traditions. Applications of this study: The obtained results will allow a better orientation in the labyrinth of institutional transformations taking place in modern Russia in the space of regional development, and predict the situation in the social reproduction of Russian society from the point of view of its innovative development prospects. Novelty/Originality of this study: The quality of innovational development and related processes of regions’ modernization are studied with the help of the socio-cultural approach, which allows determining their dependence on the complex of peculiarities of the institutional matrix, which forms specific features of behavior of the most active members of the society, which are the bearers of innovations and changes.

 

Keywords: Society, Economy, Policy, Management, Quality, National Model, Institutional Matrices, Innovational Development, Socio-Cultural Dynamics.

 

 

 

Strategic Management in Pharmaceutics Development under World Economic Globalization Transformations

Natalia S. Klunko, Natalia V. Sirotkina, Olena M. Krasnonosova

Volume 7  |  Issue 3 |  Pages: 409-417 | PDF | HTML

 

Abstract: Purpose of the study: to formulate approaches to strategic management of the pharmaceutical industry in Ukraine under globalization transformations of the world economy. Methodology: the following research methods were used: graphic modeling, analytical and structural-logical methods for economic justification of the efficiency of the presented economic and statistical calculations, as well as systematization and generalization of indicators. Results: Tendencies in the global pharmaceutical market are analyzed in the paper, particularly, the world experience of government pharmaceutical regulation. Changes for 2010-2017 in the dynamics of production of the main types of pharmaceuticals are analyzed. A tendency of growth in output value is revealed to be stable, operational profitability to be increased and the number of manufacturers to be decreased due to reducing small businesses. The growth of manufacturing capacity of pharmaceutical companies is evidenced by an increase in the common currency mainly due to the attracted capital. The role and significance of the pharmaceutical industry for development of the country are described herein. Tendencies of globalization and their influence on the pharmaceutics development are analyzed. According to the analysis results, a model to form a strategy for the pharmaceutics development was proposed that includes two outlines: one outline represents the core of the enterprise strategy, strategic development directions and principles, and the other is a set of functional strategies subordinated to the global strategy but providing a flexible mechanism to monitor and adjust changes. The scheme of formation of the strategy for pharmaceutics development in Ukraine is offered to implement the proposed model. The purpose of the research is to determine the essence of the concept of strategic management and its importance for the pharmaceutical industry in Ukraine. Applications of this study: contains substantiations on certain negative aspects for the national security of the country in globalization, predicting the market monopolization and increased competition, but also on certain positive aspects in the possibility of creating innovative clusters through technology transfer, quality improvement, and so on. However, positive benefits of globalization can be enjoyed only upon formation of the system of rapid response to challenges and opportunities of the modern market. Novelty/Originality of this study: Processes, methods and approaches of pharmaceutical development management have been studied in our country throughout the period of formation and development of Ukraine as an independent state.  However, mostly, the studies are characterized by fragmentary nature and address certain aspects of improving the industry's functioning: increasing its competitiveness, investment attractiveness, innovations, marketing, logistics, and state government. At the same time, we did not find a comprehensive study on the strategy for the stable development of pharmacy.

 

Keywords: Pharmaceutical Industry, Manufacture, Dynamics, Development, Tendencies, Import Substitution.

 

 

 

Civil Associations as Subjects of Socio-Legal Control in the Regional Community  

Valeri V. Nizovtsev, Alexander K. Degtyarev, Konstantin V. Vodenko

Volume 7  |  Issue 3 |  Pages: 418-425 | PDF | HTML

 

Abstract: Purpose of the study: In the Russian society the problem of socio-legal control acquires a current sense, as it is obvious that the state-centered matrix of socio-legal control has become obsolete, does not conform to the complexity of the modern organizational and legal processes, and is insufficient in development of feedback with queries, expectations, and requirements of various social groups. Methodology: As to selection of the methodology of the research, it is possible to suppose that the procedures of structural & functional and institutional approaches belong to the process of determinants of socio-legal control. The research methodology also envisages foundation on the principles of limited universality and target rationality, which characterizes the level of mobilization of the organic potential of the regional community. Results: The authors note that civil associations pass from the model of critical “observation” and confrontation with government institutes at the level of implementation of the function of socio-legal control to usage of the model of civil and public partnership, which is proved by creation of the Russian umbrella public structures that is to unify various civil associations for socio-legal control. As Russia is the country of regions, civil associations, as subjects of socio-legal control in regional community are to ensure transparency of policy making at the regional level and implement public hearings and public expertise of activities of regional management. However, there are objective limitations in the form of insufficient resources of civil associations and subjective limitations in the form of lack of legal professionalism and legal initiative. Perspective civil associations, as subjects of socio-legal control in regional community, are determined by horizons of activities and common goals and interests on the basis of constructive cooperation with state structures in actualization of the procedures of participation in evaluation of the normative and legal correspondence of the activities of government institutes for developing effective feedback with regional community. Applications of this study: The results obtained will allow a better orientation in the space of social and legal transformations occurring in modern Russia and predict the situation in the social reproduction of Russian society from the point of view of the prospects for its legal development. Novelty/Originality of this study: The research methodology envisages the model of socio-legal control as the sphere of mandatory participation of civil institutes, according to their organizational structure, system of rules and goals, and that civil institutes in a regional community are oriented at implementing their own principles and ideas for expanding the opportunities of representation and expression of the interests of groups that are not satisfied with the positions of social observation or passive adaptation.

 

Keywords: Socio-Legal Control, Civil Associations, Government Institutes, Regional Community, Public Expertise, Equal Partnership.

 

 

 

The Role and Features of Resource-Saving Processes in Modern Conditions of Managing the National Economy and the Implementation of State Strategic Initiatives  

Irina P. Bogomolova, Elena. I Krivenko, Anna A. Larionova, Oksana V. Takhumova, Vasily I. Eroshenko, Natalia A. Zaitseva

Volume 7  |  Issue 3 |  Pages: 425-431 | PDF | HTML

 

Abstract: Purpose of the study: The purpose of the preparation of this article is to determine the substantive essence of resource-saving activities at the level of state regulatory management, identify problem points, specific features and key trends in the aspect of medium and long-term planning. Methodology: The leading approach to the study of this problem was the content analysis of scientific-theoretical and practical materials, expert assessments of domestic and foreign scientists in the field of resource conservation, strategic planning and tactical development of the state regulatory mechanism. Results: The results of the study are that the authors described the features of resource-saving processes, as well as their principles, methods, directions and approaches, which formed the basis for the formation of a range of key tasks aimed at implementing resource-saving policies at the government level. Applications of this study: The theoretical significance of the article’s materials consists in deepening and expanding the scientific and methodological approaches to the interpretation of the category “resource saving”, in the course of which the substantive essence of this definition was established. The materials of the article are of practical importance and can be used in the development of strategic programs for resource conservation and resource efficiency at the regional and national levels, as well as in training personnel for this field of activity. Novelty/Originality of this study: The novelty of the research results lies in the fact that the state instruments for activating and regulating the process of resource saving were clarified, and conceptual provisions were developed to provide for the process of transition of the national economy of the Russian Federation to the path of resource-saving development. The originality of the research consists in the systematization of foreign experience, which determined the fundamental basis of the tasks in the implementation of resource-saving policy at the governmental level.

                                                                                                                                                                                              

Keywords: Resource Efficiency, National Economy, Public Administration, Competitiveness, Strategy, Resource Saving

 

 

Student Performance Interrelation with Gadget Use at Lessons

Almira R. Bayanova, Vladimir V. Kuznetsov, Lyudmila V. Merculova, Larisa N. Gorbunova, Olga A. Pervozvanskaya, Olga O. Shalamova, Clarissa I. Vorobyova

Volume 7  |  Issue 3 |  Pages: 432-437 | PDF | HTML

 

Abstract: Purpose: The relevance of the article is conditioned by the use of gadgets is increasing rapidly every year. The purpose of this study is to establish the relationship of students' performance with their use of gadgets in the classroom. Methodology: The leading methods for the study of this problem are the methods of questioning and testing, allowing to make a qualitative analysis of the leading type’s characteristics of students’ attitude to the study. Result: Positive impact on academic performance consists in the fact that with the help of technical devices, students receive a share of information, prepare for classes, record lectures, view the textbook on the discipline. Negative impact on academic performance manifests itself in peeping answers and solutions to tasks on the test and on independent work; sitting in social networks during classes; distraction of students from educational material. Applications: The data obtained in the article can be used in social psychology, pedagogy, psychology of education, age psychology, sociology, as well as for further theoretical development of this issue. Novelty/Originality: The novelty and originality of the study lies in the fact that authors of the article reveal the positive and negative consequences of gadgets use by students in the classroom, as well as the motives for the use of gadgets in the educational process by teachers and students are shown.

 

Keywords: students, gadgets, University education, attitude to learning, academic performance.

 

 

 

Features of Alcohol Consumption Motives and Practices by Full-Time and Part-Time training Students

Gennadii A. Cornilov, Konstantin B. Ilkevich, Elena V. Shalomova, Irina G. Kartushina, Mikhail L. Musharatsky, Nikolay A. Mashkin, Sergey A. Altukhov

Volume 7  |  Issue 3 |  Pages: 438-444 | PDF | HTML

 

Abstract: Purpose: This article is devoted to an urgent problem – the problem of alcohol consumption culture by the younger generation. The aim of the study is to identify the factors, motives and practices of alcohol consumption by full-time and part-time students, as well as a description of students’ alcohol consumption culture. Methodology: The leading methods for the study of this problem are the methods of questioning and interviews, allowing analyzing the factors and motives that contribute to the consumption of alcoholic beverages. These methods helped to identify the particularities of the practices of alcohol consumption by students of by full-time and part-time training. Result: The article considers the factors that contribute to the consumption of alcohol by students of full-time and part-time students of training: social factor (the presence of a company of close people who can support dialogue; the acquisition of social ties); material factor (increase or decrease in income); psychological factor (stress relief, antidepressant, and the possibility of emancipation). Applications: The data obtained in the work can be used in sociology, social psychology, psychology of education, psychology of deviant behavior, as well as for further theoretical development of this issue. Novelty/Originality: The novelty and originality of the study lies in the fact that it highlights the main motives of alcohol consumption by students of part-time training: a way to relax from work; stress relief; observance of the ritual; the ability to be liberated with people; with whom sober communication is unpleasant. Most often, alcohol by students and full-time and part-time forms of training is used at home (the most comfortable place); at a party (a special leisure organization); in bars (attracts a special atmosphere).

 

Keywords: student youth, forms of training, the alcohol, the motives of alcoholic beverages’ consumption, the practice of alcohol consumption.

 

 

Mechanisms of Overcoming Scool Disadaptation of Younger Schoolchildren in the Multiethnic Classroom

Elena V. Bystritskaya, Elena L. Grigoryeva, Vitaliy L. Skitnevskiy, Ivan A. Sedov, Olga V. Reutova, Alyona A. Podlubnaya, Ludmila M. Levina

Volume 7  |  Issue 3 |  Pages: 445-449 | PDF | HTML

 

Abstract: Purpose: The objective of the article is to identify the signs of school dis adaptation of primary school students, the level and qualitative characteristics of their manifestation in multinational classes and schools, as well as to specify school dis adaptation coping and prevention mechanisms on the example of second-grade students. Methodology: The leading approach, which allows investigating the inclusion of second-grade students, not only into the educational environment, but also into socio-cultural environment, is a student-centered approach. Result: The types and signs of school maladaptation and social maladjustment in a multiethnic educational organization are defined, and the results of the implementation of the identified mechanisms in polyethnic school are determined. The article materials can be useful for primary school teachers, parents of younger students, as well as for specialists working with polytechnic children’s groups in the system of additional education, and social teachers dealing with migrant families in order to build a non-conflict educational environment. Applications: The scientific novelty of the research is mechanisms for overcoming school disadaptation of younger schoolchildren as subsystems of a unified system of socialization which were considered and described for the first time. They were combined with the purpose and content of the educational process during the school terms. Novelty/Originality: The uniqueness of the study lies in the fact that the subtle mechanisms of school adaptation of children of six to seven years old are examined in the structure of the multicultural educational space.

 

Keywords: school adaptation, individualization, integration, cognitive differentiation, parity cooperation.

 

 

 

 

Valorization of Balanites aegyptiaca Seeds from Mauritania: Modeling of Adsorption Isotherms of Caffeine from Aqueous Solution

Abdoulaye Demba N’diaye and Mohamed Sid’Ahmed Kankou

Volume 7  |  Issue 3 |  Pages: 450-455 | PDF | HTML

 

Abstract: This paper focuses on the development and characterization of low cost sorbent to Balanites aegyptiaca seeds without treatment and its application in the adsorption of caffeine in aqueous solution. The Balanites aegyptiaca seeds were characterized by using physicochemical parameters, Scanning Electron Micrograph (SEM) and Fourier Transform Infra-Red spectroscopy (FTIR). Batch sorption experiments are intended to identify the adsorption isotherms of the caffeine on the Balanites aegyptiaca seeds. Four isotherm models (Freundlich, Langmuir, Redlich–Peterson and Sips) were tested for modeling the adsorption isotherms by nonlinear method. The maximum adsorption capacity was found to be 4.28 mg g-1. Based on data obtained in this study, it can be concluded that the Balanites aegyptiaca seeds are a promising sorbent.

 

Keywords: Balanites aegyptiaca seeds, sorbent, caffeine, nonlinear, isotherms.

 

 

 

E-Commerce among Students: New Kind of Business or Utopia?

Irek F. Salikhov, Diana G. Alekseeva, Aleksandr I. Ardashev, Galina A. Terskaya, Konstantin V. Chistyakov, Svetlana V. Kamenskaya, Kadriya I. Sibgatova

Volume 7  |  Issue 3 |  Pages: 456-460 | PDF | HTML

 

Abstract

The relevance of this article lies in the understanding of the emergence and rapid development of the Internet, as well as the modernization of information technology, which led to the creation of a new direction in business — e-Commerce. Modern computer technologies allow entrepreneurs to conduct their activities, not being destructed from other important things, being in different parts of the world, so small business in recent years is gaining popularity among those who are limited in time and in their actions - among students. The aim of the study is to analyze the phenomenon of e-Commerce as a way to support students, on the example of students - young mothers. The leading method for the study of this problem is the method of free interview with the use of a guide, which identifies the topics of conversation, arranged in a logical sequence, which contributes to the effective identification of the attitude of young mothers-students to e-Commerce. The article analyzes the concept of e-Commerce as a new type of business. The existing ways to support student entrepreneurship are studied and the attitude of young mothers-students to entrepreneurship in the field of e-Commerce is described. E-Commerce is analyzed as a new way to support young mothers-students. The novelty and originality of the study lies in the fact that the phenomenon of e-Commerce and the attitude of young mothers-students are considered. It is revealed that more than half of the informants as the main reason for e-business called the need for self-realization. Material support for them plays a secondary role. It is established that e-Commerce does not have a negative impact on the family relationships of informants; moreover, the family supports them and helps them. It was determined that the main problems faced by informants were the lack of time associated with the care of family and children, unscrupulous clients, technical difficulties. All informants have successfully organized the promotion of their products through social networks and their own websites. None of the surveyed mothers-entrepreneurs did not use the programs of state support for women's entrepreneurship, and nothing about it was heard, as well as about the existing Funds of women entrepreneurs. During the survey, young mothers expressed interest in these organizations and the desire to join them, if participation in them would not be accompanied by a large amount of time. It is established that at the end of maternity leave, almost all informants plan to continue to engage in e-Commerce, officially registering their business. The data obtained in the work can be used in the psychology of labor, age psychology, social psychology, pedagogy, sociology, as well as for the further theoretical development of this issue.

 

Keywords: E-Commerce, Student Youth, Young Mothers, Social Networks.

 

 

 

Green Synthesis of Spherical Silver Nanoparticles Using Ducrosia Anethifolia Aqueous Extract and Its Antibacterial Activity

Mohammad Amin Jadidi Kouhbanani, Nasrin Beheshtkhoo, Pourya Nasirmoghadas, Samira Yazdanpanah, Kamiar Zomorodian, Saeed Taghizadeh, Ali Mohammad Amani

Volume 7  |  Issue 3 |  Pages: 461-466 | PDF | HTML

 

Abstract: The present study introduces a simple, cost-efficient, and eco-friendly method for the synthesis of silver nanoparticles (AgNP) using aqueous extract Ducrosia anethifolia and its antibacterial activity. Ducrosia anethifolia aqueous extract was used both as a reducing and capping agent. Synthesized silver nanoparticles were characterized using several techniques including UV-Vis spectroscopy, powder X-ray diffraction (XRD), Transmission electron microscopy (TEM), dynamic light scattering method (DLS), and FT-IR analysis. The results demonstrated that the size range of the synthesized nanoparticles was 4 to 42.13 nm, with the average size of 11.4 nm and in a spherical shape. Moreover, X-ray diffraction analysis indicated that the silver nanoparticles were highly crystalline in nature. Examination of antibacterial activity of synthesized on Gram-positive and Gram-negative bacterial revealed that they had a substantial antibacterial effect.

 

Keywords: Ducrosia Anethifolia; silver nanoparticle; Green synthesis; antimicrobial performance

 

 

 

Situational Tasks in Adult Education: Design and Diagnostics Algorithms

Sergey G. Nikulin, Natalya A. Solovyeva, Andrew A. Akhayan, Rashad A. Kurbanov, Asiya M. Belyalova, Ramin A. Gurbanov, Bika B. Dzhamalova, Maryam S. Abdurakhmanova
Volume 7  |  Issue 3 |  Pages: 467-473 | PDF | HTML

 

Abstract: Purpose: The purpose of the article is to develop algorithms based on the specifics of adult education in modern conditions for the design and diagnosis of situational problems that contribute to the productivity of learning in the system of continuing education. Methodology: The methodological basis is the theory of contextual learning, formally limiting the subject and social content of occupational activity and clearly defining the real professional tasks. Result: The results of the study allow using the obtained technological algorithms in the organization of adult education in the design of didactic materials – tasks, projects and diagnostic toolkit. Applications: This research can be used for the universities, teachers and students. Novelty/Originality: In this research, the model of the Situational Tasks in Adult Education: Design and Diagnostics Algorithms is presented in a comprehensive and complete manner.

 

Keywords: Adult education, Design and diagnostics algorithms, Situational tasks, Increasing the productivity, Teaching and training

 

 

 

Problems and Prospects of Growing Carp in Russia and other Countries of the World

Mikhail V. Shatokhin, Anna A. Larionova, Natalia A. Zaitseva, Elena A. Gurkovskaya, Alexander I. Romanenko, Oleg V. Gorbunov, Lilya F. Ponomareva

Volume 7  |  Issue 3 |  Pages: 474-478 | PDF | HTML

 

Abstract: Purpose: The purpose of this study is to systematize the world and Russian experience in the development of carp cultivation technologies, including those based on intensive fish production in special devices. Methodology: The following methods of research were used: methods of studying, analytical, survey and other materials, the results interpretation, the method of statistical data analysis, consolidation and synthesis of information. Result: As a result of the research, we generalized the experience of carp production in Japan, Israel and the countries of Europe. We determined the issues and outlined the perspectives of carp production in Russia. The conclusions obtained in this study can be used as a basis for further in-depth development problems for intensive technologies use of fish production. Applications: This research can be used for the universities, teachers and students. Novelty/Originality: The novelty of the research results consists in systematization of the world and Russian experience in the use of technologies for the intensive production of carp cultivation, including in special devices. The originality of research consists in substantiating the direction of increasing the productivity of production of a map in Russia through the use of biologically active substances and growth stimulants.

 

Keywords: aquaculture, fish production technology, carp, fish breeding.

 

 

Physical Properties and Stability of Plasmid DNA-Loaded Chitosan-TPP Nanoparticle

S. R. Naeimi Torshizi, H. Ofoghi, A. Jangjou, S. Taghizadeh, M. Kianirad

Volume 7  |  Issue 3 |  Pages: 479-484 | PDF | HTML

 

Abstract: Chitosan (CS) is a biodegradable natural polymer that has shown potential for gene delivery. Although a number of in vitro studies showed that chitosan and its derivatives have emerged as promising vehicles for efficient non-viral gene and plasmid DNA (pDNA) vaccine delivery, the stability of chitosan/plasmid nanoparticle remain insufficient. In the present study, ionically crosslinked chitosan nanoparticles were formulated with plasmid DNA using the ionic gelation technique with sodium tripolyphospate (TPP) as a crosslinking agent. We investigate the stability of chitosan/pDNA nanoparticles which was synthesized by this method. Optimization study showed that chitosan to TPP ratios of 1:0.4(w/w) results in the reproducible formation of nanoparticles with good production yields. SEM and DLS analyses revealed a circular shape of the CS/TPP nanoparticles with an average size diameter of 173 nm. The zeta potential of the nanoparticles was + 10.8 mv. In vitro study of pDNA release from CS/TPP nanoparticles revealed no DNA release following incubation of chitosan/pDNA nanoparticles for up to 1 month, in mediums of PBS and acetic acid at pH 4 and pH 7.4. According to the results, ionically crosslinked CS/TPP nanoparticles have the potential to be used as a biocompatible non-viral gene delivery system with strong stability.

 

 Keywords: Chitosan, Gene delivery, Nanoparticles, Ionic gelation

 

 

 

Effectiveness of Vetiver Grass versus other Plants for Phytoremediation of Contaminated Water

Negisa Darajeh, Paul Truong, Shahabaldin Rezania, Hossein Alizadeh, David W.M. Leung

Volume 7  |  Issue 3 |  Pages: 485-500 | PDF | HTML

 

Abstract: Worldwide water pollution level in the last few decades has been exponentially increased as a result of industrialisation. This global increase occurs in both developed and developing countries, but more significantly in the latter. Vetiver System Technology, which is based on Vetiver grass (Chrysopogon zizanioides L. Roberty) has been successfully used as a phytoremediation tool to remediate both polluted water (municipal wastewater such as sewage effluent, landfill leachate, urban runoff, drainage channels, industrial wastewater such as food processing factories, contaminated land (mine overburden and tailings, solid waste dumps, etc.), due to its extraordinary and unique morphological and physiological characteristics. This review focuses on the treatment of polluted domestic and industrial wastewater by hydroponics and constructed wetlands treatment methods. Based on the finding, Vetiver grass (Chrysopogon zizanioides L. Roberty) has a similar potential and often more effective rather than two other Vetiver genotypes and other commonly used macrophytes such as Cyperus species, Phragmites species, Typha species in treating a wide range of industrial and domestic wastewater, polluted rivers and lakes. In addition, Vetiver has the potential to be used for additional benefits after phytoremediation, such as raw material for handicrafts, essential oil and its derived products, industrial products (raw material for pulp and paper), fibreboard.

 Keywords: Vetiver grass; Chrysopogon zizanioides; Cyperus, Phragmites; Typha; Eichhornia; Schoenoplectus; Phytoremediation; Constructed Wetlands

 

 

 

Antimicrobial Activity of three Essential Oils against Several Human Pathogens

Anesa Dzaferovic, Teofil Gavric, Simin Hagh Nazari, Monika Stojanova, Muamer Bezdrob, Blazo Lalevic, Saud Hamidovic

Volume 7  |  Issue 3 |  Pages: 501-505 | PDF | HTML

 
Abstract: Essential oils are products derived from various parts of plants. These products have therapeutic, pharmacological and antimicrobial properties against human pathogens. In this paper, the impact of clove, spruce and pine essential oils against Escherichia coli, Salmonella spp. and Staphylococcus aureus was determined using disc diffusion method. Liquid bacterial inoculum was streaked onto Muller-Hinton agar using the sterile swab. Antimicrobial activity was estimated by measurement of inhibition zone around the discs previously impregnated by essential oil and placed onto agar. Results showed that the antimicrobial activity of essential oils depended on the type of oil and bacterial species. The significantly highest diameter of inhibition zone against tested bacteria was recorded using clove essential oil, whilst the lowest diameter was noticed using pine essential oil. Clove oil was most effective against Staphylococcus aureus, whilst spruce and pine oil against Salmonella spp. compared to other bacteria. Strong positive correlation between the effect of the spruce oil against Escherichia coli and Staphylococcus aureus, spruce and with clove oil against Staphylococcus aureus was recorded. The results of this research indicate the possible application of essential oil of clove against human pathogens.

  

Keywords: antimicrobial activity, essential oil, human pathogens


 
 

 

 

Analysis of Suitable Signal Peptides for Designing a Secretory Thermostable Cyanide Degrading Nitrilase: An in Silico Approach

Marzieh Asadi, Saba Gharibi, Seyyed Hossein Khatami, Zahra Shabaninejad, Farzaneh Kargar, Fatemeh Yousefi, Mortaza Taheri-Anganeh, Amir Savardashtaki

Volume 7  |  Issue 3 |  Pages: 506-513 | PDF | HTML

 

Abstract: Secretory production of recombinant proteins has many benefits such as solubility and ease of purification. The aim of this study was to find suitable signal peptides for secretory production of nitriles in Bacillus subtilis. The signal peptides were chosen from Signalpeptide web server. SignalP server was used to define probability of suitable signal peptides and their secretion pathways. Physico-chemical properties and solubility were predicted by ProtParam and Protein-sol, respectively. Bioinformatics analysis identified SUBF_BACSU GUB_BACSU, SACB_BACAM and AMY_BACAM that linked to nitriles are appropriate signal peptides. Their fusion proteins could be stable, soluble and non-antigenic proteins that might have suitable secondary and tertiary structures. The recommended signal peptides by this study are appropriate for rational designing of secretory soluble nitriles. Thus, the results of present work can be useful for future experimental production of secretory and soluble nitriles.

 

Keywords In silico, Nitrilase, Cyanide, Signal Peptide.

 

 

 

 

Tools for Analyzing the Impact of Cooperative Education Programs on the Development of Schoolchildren’s Meta-Disciplinary Outcomes and Soft Skills

Elena A. Sukhanova, Anna A. Eliseeva

Volume 7  |  Issue 3 |  Pages: 514-521 | PDF | HTML

 

Abstract: The article presents the results of a research project on the Tomsk State University’s implementation of various forms of cooperation with the Region’s general education institutions. The authors focused on substantiating issues in cooperation monitoring and, in particular, on analyzing the effectiveness of cooperative education programs. The authors put forward the hypothesis that educational programs implemented in universities and schools in the cooperation format influence not only the intensification of discipline-related educational outcomes, but also the development of high school students’ meta-disciplinary results and soft skills. The methodology for analyzing the educational potential of inter-institutional cooperation, developed by the Tomsk State University, allows conclusions to be drawn on the impact of cooperative education programs on the quality of education. However, data illustrating the evolution of educational outcomes are needed to take managerial decisions related to the support and development of these or those programs. For this purpose, the authors used specialized computer-based programs. The program’s testing results show that interaction between higher education and general education institutions in carrying out joint projects and programs has the potential to improve the quality of education. The authors conclude that the application of the above-mentioned methodology could enhance the quality and effectiveness of cooperation in education and take network partnerships from precedent-setting relations to a new level, namely, the setup of a cooperative education community.

 

Keywords: Inter-institutional cooperation, Cooperative education programs, Educational potential, Soft skills, Competence, Monitoring.

 

 
 

 

 

Production Capacities of Russian Agricultural Organizations: Assessment and Forecast

Rafik M. Sagatgareev, Evgenii N. Mazhara, Elena A. Fomina, Oleg A. Zykov, Andrei N. Chernov

Volume 7  |  Issue 3 |  Pages: 522-530 | PDF | HTML

  

Abstract: Russia currently leads in individual branches of the industry (in particular, in 2016, it was the world's third-largest wheat producer). However, in essential food products (like meat, meat products, milk, dairy products, or fruits) Russia fails to meet even threshold requirements according to the Russian Federation Food Security Doctrine, and their production levels are lower than that of the USSR. Anti-Russia sanctions restricting imports of agricultural products into Russia make things worse and pose a certain threat to national food security. This article reviews the body of literature on the topic, refines the key factors of intensification of production growth of agricultural products in Russia, develops an economic and mathematical model for assessment and making predictions of production capacity (the monetary volume of agricultural output) of agricultural organizations (the core category of agricultural producers) in the Russian Federation. A correlation and regression analysis revealed that the resultant indicator is formed mainly by two factors: (1) productivity of grains and grain legumes, and (2) the average monthly nominal job compensation at agricultural organizations. Factor (2) has a much greater impact on the output of agricultural organizations in Russia. If the tendency of the factors' changing is maintained in 2018–2021, in the medium term horizon, they are expected to grow. And this, in turn, should increase the resultant indicator. Despite the optimistic forecasts, Russian agricultural producers still have significant potential of increasing agricultural production output. It should be noted that agricultural economic growth in Russia is impossible without solving social problems.

 

Keywords: Economic and mathematical model, correlation and regression analysis, agricultural produce, agricultural organizations of Russia, production capacity, assessment, growth factors, forecast, trend extrapolation, multiple regression.

 

 
 

 

 

Crimes in the Sphere of Business Activity: Trends of Impact on Business in the Russian Federation  

Andrey V. Ragulin, Elena G. Bagreeva, Salikh Kh. Shamsunov

Volume 7  |  Issue 3 |  Pages: 531-536 | PDF | HTML

 

Abstract: Purpose: The article defines the main criminal risks associated with certain areas of business activity, discloses statistical indicators characterizing the results of consideration of criminal cases of crimes in the field of business by the courts of the Russian Federation, in particular for such crimes as illegal entrepreneurship, production, acquisition, storage, transportation or sale of goods and products without labeling and (or) application of information provided for by the legislation of the Russian Federation, crimes in the field of labor relations and crimes in the field of taxation, other crimes in certain areas of business activity. Methodology: The methodological basis for the study of this problem were the results and methods of previous research, the definition of risks leading to the initiation of criminal cases against entrepreneurs on the basis of the study of criminal case materials, content analysis of the media, the identification of crimes for which the most frequently prosecuted managers and business owners, the analysis of statistical data of the Judicial Department of the Supreme court of the Russian Federation on the results of criminal cases by the courts for 2015-2017. Result: Based on the results of Applications: The contents of this article will be useful for understanding the current state of the problems of criminal and legal impact on the business in the Russian Federation, creation of the informational basis for the prediction of entrepreneur’s criminal legal consequences of their actions, for carrying out scientific researches on problems of criminal prosecution of entrepreneurs in the Russian Federation. Novelty/Originality: The originality of this study lies in the use of a new methodological approach to the analysis of crime in the field of business activity and obtaining new conclusions on the problem of criminal law impact on business in the Russian Federation.

 

Keywords: business, criminal law risks, criminal law impact, crimes in the sphere of economic activity, crimes in the sphere of business activity.

 

 
 

 

 

 

 

 

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