bluuebunny/crossref_metadata_2025 huggingface dataset:
Spatial Analysis of Base Flow and Stream Flow from the Abbay River Basin after Watershed Management Interventions
Authors:   the Drainage Research Institute, National Water Research Center, P.O. Box 6, 13621 Qalubia, Egypt, Khairy Wael M.
Published: September 2021

Recently, increasing concern in Africa has been registered on the potential impacts on base flow and stream flow due to the implementation of watershed management interventions. This research incorporates spatially monthly geographical hydrological data sets into a developed spreadsheet water balance model to estimate the changes in surface runoff, base flow and stream flow as a result of implementing watershed management interventions in the Abbay River Basin during the period (2010-2018). The model was implemented at sub-catchment level. Considering Year 2005 as a datum for watershed management intervention, results of the modeling and spatial analysis indicated that watershed management interventions relatively reduced surface runoff, increased deep infiltration to groundwater and accordingly increased base flow to the stream. Among the key results in the Abbay Basin that change from Year 2010 to Year 2018 was reduction of surface runoff from the Abbay Basin in the amount of 1,753 million m3/yr. As a result, an increase in annual base flow in the amount of 23 million m3/yr was estimated, leaving a reduction in annual mean flow of the Abbay River in the amount of 1,731 million m3/yr of the Abbay River at El-Diem site. It is expected that the flow of the Abbay River will continue to decrease due to the continuous implementation of the watershed management interventions and agriculture expansion in the Abbay Basin.
Contribution to the Study of Solid-Solid Thermal Contact Resistances--A Comparative Study
Authors: Cheriet Rahmouna , Bensaad Bourassia , Bouhadjela Fatiha , Belhenini Soufyane , Belharizi Mohammed
Published: September 2021

This study presents a mixed numerical / semi-empirical approach that primarily aimed to estimate the thermal contact resistance between two solids. The results obtained by this mixed method were compared and validated by experimental measurements of this resistance. Three semi-empirical models were used, namely the Mikic model, the Yovanovich model and the Antonetti model. The three-dimensional finite element numerical simulation was used to estimate the contact pressure between the two solids. Then this contact pressure obtained numerically was compared to the hardness of the solids in contact. The findings indicated that the numerically obtained contact pressures were close to hardness. Therefore, the hardness, which is usually used as an input variable in semi-empirical models, was replaced by the contact pressure. The thermal contact resistance obtained by this mixed method was then compared with the experimental one. The outcomes obtained from this comparison turned out to be very conclusive and can therefore be used to reinforce our approach which can actually be viewed as a reliable and low-cost method for estimating the thermal contact resistance between solids in contact.
Kinetic Modelling and Optimizing of Butyl Propionate over a Synthesied Material (Tungstan Phosphoric Acid) Heteropoly Catalyst Using Response Surface Technique
Authors: Kalakuntala Raju , Surnani Srinath
Published: September 2021

The performance of heteropoly acid i.e., Tungstan phosphoric acid for the synthesis of butyl propionate at optimized conditions. Effect on conversion and yield of propionic acids using the Response Surface Methodology (RSM) were evaluated by different process parameters including catalyst loading, alcohol/acid molar ratio. There were no external and internal mass transmission limits. A quadratic model acquired by the variance study (ANOVA) has been shown to view experimental data successfully with the regression (R2 = 0.94 and R2 = 0.942) coefficients approaching to unity. The pseudo homogeneous kinetic model (PH) validated with experimental data to determine kinetic parameters i.e., activation energy (45.97 kJ/mol) and frequent factor (91319 L/mol-min).
The Effect of Mineral Powder on the Surface/Interface of Aggregates and Asphalt
Authors: Tian Peng , Peng Kaixing , Dong Hangning , Li Yan , Dong Weizhi
Published: September 2021

This paper attempts to analyze the effect of mineral powder on the adhesion of aggregates and asphalt. First, it employs the gravimetric method to quantitatively analyze the peeling rate of asphalt and asphalt mortar from the surface of basalt, andesite, and limestone aggregates. Then, it takes microscopic pictures of the mineral powder adhered on the surface of the aggregates to observe the distribution of mineral powder in the asphalt mixtures, and uses profiles to analyze the adhesion status of mineral powder on the surface of the aggregates. At last, this paper analyzes the effect of mineral powder particles on the surface/interface of the aggregates and asphalt, and the results indicate that mineral powder has increased the roughness of the surface of the aggregates, therefore it indirectly promotes the adhesion of asphalt on the surface of the aggregates; the mineral powder particles interact with the surface texture of the aggregates, forming an embedding and wedging structure in the texture; compared with aggregates with smooth surface, the adhesion promotion effect is stronger.
Optimal Mix Ratios of Green Building Materials and Construction Cost Control
Authors: Wang Yuan , Liu Jianli
Published: September 2021

Green concrete wall-building composite materials (namely GBMs, green building materials for short) have superior mechanical properties and good durability, thus they are now a high-profile topic in relevant research field. However, due to the existence of risk factors such as the high initial cost, and unclear policy direction, the promotion of GBMs has been greatly limited. In this context, it is a necessary work to study the cost control of construction projects, and figure out the relationship between the saving of building operating cost and the increase of initial construction cost. For this purpose, this study experimented on the optimal mix ratios of GBMs to control the construction budget of engineering projects. At first, this paper modeled the strain-hardening and steady-state cracking of GBMs, and constrained the models based on the bridging rule, the energy criterion, and the strength criterion. Then, this paper constructed a fractal model for the dense effect of powder particles in the aggregates of the GBMs, and analyzed its fractal features; after that, this paper designed the mix ratios of GBMs and experimented on the mechanical properties; at last, this paper constructed a production cost-use benefit model of the GBMs, completed the construction budget control of the engineering project, and gave experimental results of the performance of GBMs and the use cost calculation and analysis results.
Process Variable Optimization of Cold Metal Transfer Technique in Cladding of Stellite-6 on AISI 316 L Alloy Using Grey Relational Analysis (GRA)
Authors: Thiagarajan Thinesh Babu , Ponnusamy Sengottuvel
Published: September 2021

In this work, an attempt was made to identify the optimised parameter combination in cold metal transfer (CMT) cladding process of AISI 316 L austenitic stainless steel. cladding process was carried out using stellite 6 filler wire. Experiments were carried out based on L31 central composite design (CCD). Cladding was done with current, Voltage, torch angle and travel speed as input parameters. Quality of the clad was analysed by measuring depth of penetration, weld area, hardness of the clad surface, corrosion rate and clad interface thickness. Grey relation analysis was used to identify the optimised parameter combination. Trial number 18 was identified as the optimised parameter combination. The optimised input parameters are Welding Current 200 Amps, Voltage 19 V, Torch Angle 70⁰ and Welding Speed 150 m/min. ANOVA was used to identify the most influencing parameters on the overall multi-objective function and it was understood that the combined effect of torch angle, travel speed had a significant influence on the clad quality. Further investigation was carried out through an optimised set of parameters. The cladding experiment was conducted and their surface was investigated through clad profile, hardness of the cladded area, interface thickness of cladding region and corrosion rate.
Research on the Damping Performance of Mining Highly Efficient Water-Retaining Colloidal Material Against the Spontaneous Combustion of Coal
Authors: Jin Yongfei , Yan Li , Liu Yin , Li Chuansheng
Published: September 2021

In order to solve the shortcomings of the traditional mining anti-extinguishing gel material such as low strength and poor water retention, a high hydrocolloid anti-extinguishing material was developed with sodium alginate and light calcium carbonate as the base material and gluconolactone as the retarder, which was mixed and reacted. The base material ratio of highly efficient water-retaining colloidal material for coal void filling was determined as 2% SA + 0.5% PCC + 1% GDL with a moulding time of 4.5 min, while the base material ratio of highly efficient water-retaining colloidal material for extinguishing high temperature fires was 2.5% SA + 1% PCC + 1% GDL with a moulding time of 2.5 min. The highly efficient water-retaining colloidal material was found to reduce the concentration of signature gas and delay the characteristic temperature point and increase the activation energy of coal oxidation, which indicates that the highly efficient water-retaining colloidal material can effectively inhibit the spontaneous combustion process of coal at low temperature stage. Infrared spectroscopy experiments were conducted to investigate the microscopic resistance mechanism of the highly efficient water-retaining colloidal material, and the results showed that the highly efficient water-retaining colloidal material mainly reduce the activity of Ar-C-O-, -COO-, -CH3, -CH2 and -OH in coal to inhibit the spontaneous combustion of coal.
Effect of the Grain Sizes on the Ultrasonic Propagation and Attenuation on Different Types of Steels Microstructure During Non-Destructive Testing
Authors: Markja Irida , Dhoska Klodian , Elezi Dervish , Moezzi Reza , Petru Michal
Published: September 2021

In this paper we have proposed an experimental study of the steel grains sizes effect on the shift frequency of the ultrasonic waves being propagated in steels. Ultrasonic testing has been used in most inspection services for different materials as non-destructive testing. The novelty of our research work has been focused on the investigation of the new method for determining microstructure evolution of metals by using ultrasonic signals in conjunction with changes in grain size and hardness of steels. Furthermore, we have studied the microstructure of steel types S355, S275, Corten B and S275N. The microstructure results of steels have shown the changes that have been undergone from thermal and mechanical processes by using the attenuation of ultrasound waves during non-destructive testing.
Hydrothermal Aging and Bonding Properties of a New Room Temperature Cured Structural Adhesive in Building Components
Authors: Li Hui , Gong Guan , Lv Tian
Published: September 2021

his paper firstly explores the hydrothermal aging performance of a new room temperature cured structural adhesive at four different levels of relative humidity through dynamic mechanical analysis (DMA). The results show that the strengthening effect of post-curing was stronger than weakening effect of humidity. Then, the Arrhenius equation was introduced to calculate the ratio of the apparent activation energy of this adhesive at the glass transition temperature before and after hydrothermal aging. The little change of the ratio suggests that the adhesive boasts a strong resistance to hydrothermal aging. In addition, the adhesive was tested on concrete structures at room temperature to observe its repairing effect of concrete cracks. The observations reveal that the compressive strength of the cracked concrete block repaired by the adhesive was as high as 90.5% of that of the intact concrete block. Furthermore, the adhesive was used to bond rebars to concrete under three different constant tensile speeds. The results demonstrate that the bonding effect was better under slow constant loading.
Numerical Simulation of Borehole Parameters for Coal Seam Gas Pre-Drainage
Authors: Li Xiaoyan , Zheng Jiyu , Liu Jinpin
Published: September 2021

Borehole parameters are quite important for gas drainage. This paper studies the impact of borehole diameter and time on gas drainage and performs numerical simulation on the distribution of gas pressure under the conditions of different borehole diameters and drainage times. The simulation results reveal that, as the borehole diameter increases, the gas drainage volume increases along with it and the gas pressure decreases, but such effect on gas drainage is limited. In terms of drainage time, the longer the drainage time, the greater the drainage impact scope. Taking a gas pressure drop of 51% as the indicator of the effective pre-drainage radius, the distance from the point with a gas pressure drop of 51% to the position of the borehole is the effective pre-drainage radius. When the pre-drainage reached the 30th, 45th, 60th, 75th, and 90th day, the effective pre-drainage radius was 1.04m, 1.29m, 1.51m, 1.68m, and 1.82m respectively. According to the numerical simulation results, the effective pre-drainage radius varies with the pre-drainage time, and the fitting analysis of the two indicates that the relationship between the two can be described by a power function.
Machinability Studies and Optimization of AA 6082/Fly Ash/Carbonized Eggshell Matrix Composite
Authors: Ononiwu Ndudim H. , Ozoegwu Chigbogu G. , Madushele Nkosinathi , Akinlabi Esther T.
Published: September 2021

Machinability studies of aluminium matrix composites (AMCs) is a necessary investigation required to understand their behaviour during machining to produce components effectively and efficiently. This established need has led to the investigation into the machinability of AA 6082 reinforced with 2.5 wt.% fly ash and 2.5 wt.% carbonized eggshell fabricated via stir casting. The studied machinability indices were material removal rate (MRR), cutting temperature, built-up edges (BUE) formation and chip morphology while the selected inputs were cutting speed (100 mm/min, 200 mm/min, 300 mm/min), feed (0.1 mm/rev, 0.2 mm/rev, 0.3 mm/rev) and depth of cut (0.5 mm, 1 mm, 1.5 mm). For the experimental design, the L9 orthogonal array was preferred to create 9 experimental runs. The analysis of the built-up edges showed that it increased at lower cutting speeds and increased feed and depth of cut. The examination of the produced chips after each experimental run showed the presence of c-shaped, helically shaped and ribbon-shaped chips. The analysis of variance (ANOVA) for both MRR and cutting temperature indicated that the depth of cut was the most influential factor on both responses. Multi-objective optimization using desirability function analysis showed that the optimum combination of parameters was 300 mm/min, 0.2 mm/rev and 1.0 mm for the cutting speed, feed and depth of cut respectively. The ANOVA of the composite desirability indicated that the cutting speed was the most contributing factor.
Influence of Nanofiller Dispersion on Electrical and Mechanical Properties of Epoxy Alumina Nanocomposites
Authors: Neelmani  , Sarathi Ramanujam , Suematsu Hisayuki , Tanaka Toshikatsu
Published: September 2021

The electrical and mechanical properties of the epoxy alumina nanocomposites depend on the uniform dispersion of the nanofiller in the epoxy matrix. Epoxy alumina nanocomposites were prepared using 1, 3, and 5 wt% of alumina nanofiller, and electrical and mechanical properties were analyzed using experimental and modelling studies. Water droplet initiated corona inception voltage (CIV) was identified using fluorescence fiber technique and by Ultra High Frequency (UHF) technique, under AC and DC voltages. The CIV formed due to water droplet have reduced drastically with increase in number of droplets and fluorescent fiber technique found to be more sensitive to identify water droplet initiated discharges. A micro mechanical model was proposed to analyse the combined effect of the interphase and agglomeration properties of the alumina nanoparticles on the tensile strength of epoxy alumina nanocomposites. Variation in ϕagg, Eagg, and E were analysed by adopting the non-parametric distribution of alumina nanoparticles and Young’s modulus increased with the increment in the alumina nanofiller dispersion level. The presence of aggregated particles exhibits a negative effect on the tensile properties of nanocomposites.
Durability of Road and Bridge Concrete and Spray-Coating Waterproof Material
Authors: Liang Wei
Published: September 2021

Different from traditional waterproof methods for road and bridge concrete, the spray-coating waterproof material can effectively prevent rainwater and other corrosive liquids from entering the concrete structure, and it has a few functional advantages such as anti-carbonization, resistance to sulfate attack, and high elongation. Existing studies have discussed the impact of the microstructure of waterproof material on the structure of waterproof coating, the optimization of the mix ratios of waterproof material, and the influencing factors of the waterproof performance of waterproof material, etc., however, few researches have concerned about the mechanical properties of concrete after coated with the spray-coating waterproof material. Therefore, to fill in this research gap, this paper researched the durability of road and bridge concrete and the spray-coating waterproof material. At first, it analyzed the bridge deck water pressure and the internal force of the drain pipe structure under multiple drainage methods, and calculated the water pressure at the gutter inlet, the stress, and the permeability coefficient of the waterproof coating. Then, this paper elaborated on the experimental methods for measuring the durability of the road and bridge before and after coated with the spray-coating waterproof material, and introduced the methods for testing the waterproof material and the concrete. At last, this paper gave the corresponding experimental results, the analysis, and the conclusion.
Effect of the Varying Percentage Diss Fiber on Mechanical Behaviour of the Based Polyester Bio-Composite
Authors: Touam Lakhemissi , Derfouf Semcheddine
Published: September 2021

Improving the mechanical and physical properties of bio-composite materials involves the incorporation of plant fibers such as Jute, Hemp, Kenaf, Ramie, Sisal, Linen, etc. The existence of Diss grass (Ampelodesmos mauritanicus) in abundance in the east of Algeria especially in Khenchela region and taking into account their mechanical resistance and their low density, which justifies their choice of use in composite materials. Tensile and hardness tests for different volume fractions (from 05% to 20%) of short fibers of Diss are performed. The increase in fiber content and their treatment improves the mechanical characteristics of the composite materials. These concentration levels are added to a Polyester resin matrix. Our work relates to the study of a composite material reinforced by a vegetable fiber of which different volume ratio of short Diss fiber are considered. The results collected are purely experimental.
Experimental Study of the Effect of Curing Mode on Concreting in Hot Weather
Authors: Bakir Nassima
Published: September 2021

Most developing countries have hot climate, ordinary jobsites characterized by reduced of human resources, equipment and infrastructures. The objective of this article is to make an experimental study of the influence of the hot climate such as that of Algeria, on the different properties of concrete in the fresh state, such as excessive water evaporation from the concrete surface, increased demand for water, increased slump loss corresponding to additional water on job-site, higher plastic shrinkage cracking and difficulty in controlling air content. At the hardened state, we could mention a reduction of strength at 28 days, decreased durability resulting from cracking at long-term period. To show the problems linked to concreting under these conditions and to present the appropriate solutions concrete or mortar can withstand the conditions in which it is implemented. Thus, negative effects caused principally by hot weather concreting motivated the choice of the such study. The research experimental work conditions in which the cementitious matrix was kept concerned two different environments, namely hot and dry climate conditions (t = 40°, h = 0%) alike the climate of the region of M'sila., and that of a medium with a hot and humid environment (t = 40°, h = 100%). The output of the investigation demonstrated the crucial role of the cure method in hot regions. The comparison of results for a reference concrete kept in air without any curing measures with two curing types simulating hot weather environment of the region M’sila was undertaken. These obtained outcome results were discussed based on the influence of climatic conditions to conclude procedures for hot weather concreting and suitable cure methods.
The Electromagnetic Wave Absorption Performance and Mechanical Properties of Cement-Based Composite Material Mixed with Functional Aggregates with High Fe2O3 and SiC
Authors: Zhang Zuoqun , Yang Chaoshan , Cheng Hua , Huang Xiaohan , Zhu Yuhao
Published: September 2021

Now there’re many researches on the electromagnetic radiation protection function of the cement-based electromagnetic wave absorbing materials, such materials have been widely used in various types of buildings. This paper proposed an idea for preparing a cement-based composite material by mixing functional aggregates with high content of Fe2O3 and SiC, that is, adding Fe3O4 powder and nano-SiC of different contents in the clay, and then sintering at 1190℃; the prepared aggregates showed obvious magnetic loss and dielectric loss to electromagnetic waves, and the numerical tube pressure could reach 16.83MPa. The double-layer reflectivity test board made of functional aggregates showed excellent electromagnetic wave absorption performance, its reflection loss was less than -10dB in the frequency range of 8~18GHz (corresponding to energy absorption greater than 90% EM), and its maximum RL reached -12.13dB. In addition, the compressive strength of the cement-based composite material at the age of 28 days reached 50.1 MPa, which can meet the strength requirements of building materials.
Multidrug Resistant Stenotrophomonas maltophilia - Changing Sensitivity Pattern with Resistance to Trimethoprim-Sulfamethoxazole - A Retrospective Study from Jaipur, India
Authors: Jain Dinesh Kumar , Gupta Yogesh Kumar , Sinha Parul , Gupta Sandeep , Vijayvergia Varunika , Batra Sivra
Published: September 2021

BACKGROUND Stenotrophomonas maltophilia is a gram-negative bacillus, multidrug resistant (MDR) opportunistic pathogen, which is normally present in hospital surroundings. It has been one of the leading causes of nosocomial infections due to risk factors such as extended intensive care unit (ICU) stays and multiple invasive procedures. In this study we wanted to assess the antibiotic sensitivity pattern with various antimicrobial agents i.e. levofloxacin, minocycline, ceftazidime, chloramphenicol, & ticarcillin-clavulanic acid with special focus on trimethoprim-sulfamethoxazole (TMP-SMX). METHODS In vitro analysis was conducted on 164 Stenotrophomonas maltophilia strains isolated from blood and respiratory tract from January 2016 to November 2020. Antibiotic susceptibility and minimum inhibitory concentration (MIC) testing for trimethoprim-sulfamethoxazole (TMP-SMX), levofloxacin (LVX), ticarcillin - clavulanic acid (TIM), and minocycline (MIN) were performed using Vitek 2, as per clinical and laboratory standards institute (CLSI) guideline. RESULTS A total of 164 S. maltophilia were isolated. Out of the 164 S. maltophilia isolates, 26 (16 %) were isolated from blood, 114 (70 %) were isolated from respiratory samples, 20 (12 %) from pus & tissue, and 4 (2 %) from urine. Out of the 164 patients, 130 (80 %) were males and 32 (20 %) were females. Maximum patients were above 50 years of age 93 (56 %) followed by 20 - 50 years 55 (34 %). Out of the 164 patients, 67 (40 %) were admitted to wards, 92 (56 %) were in ICU and 5 (3 %) were seen in out-patient department (OPD). A total of 90 % strains were sensitive to trimethoprim-sulfamethoxazole (TMP-SMX). Total 91 % strains were sensitive to levofloxacin. CONCLUSIONS S. maltophilia is emerging as a significant nosocomial pathogen, with a growing rate of isolation. Trimethoprim- sulfamethoxazole (TMP-SMX) is still the drug of choice, but resistance to it has been reported. KEYWORDS Minimum Inhibitory Concentration, Trimethoprim-Sulfamethoxazole (TMP-SMX), Levofloxacin
Pulmonary Hypertension - A Distinct Perspective
Authors: Sahu Ankit Kumar , Kumar Sudeep
Published: September 2021

In this review, we have discussed pulmonary hypertension including definition, classification, pathophysiology, epidemiology, diagnosis and treatment of each class of PH as per latest available data and guidelines. Pulmonary hypertension is defined as an increase in mean pulmonary arterial pressure of ≥ 20 mmHg at rest. The clinical classification of pulmonary hypertension (as per world health organization) includes five different classes constructed on the basis of clinical causes of pulmonary hypertension. The main pathophysiology involved in the development of pulmonary hypertension of all types is prolonged pulmonary vasoconstriction caused by multiple factors which ultimately leads to pulmonary vascular remodelling (structural as well as functional). The primary treatment of pulmonary hypertension comprises of correction/control of underlying cause of pulmonary hypertension. The prevalence of pulmonary hypertension is increasing in developed as well as developing countries and thus its awareness is important for timely diagnosis and management of this chronic condition. The main aim of our review is to provide all the necessary information regarding pulmonary hypertension in one document. KEYWORDS Pulmonary Hypertension, Chronic Thromboembolism, Left Heart Disease, Lung Disease, Pulmonary Arterial Hypertension
ЦИФРОВАЯ ПЛАТФОРМА КАК НОВОЕ ПРАВОВОЕ ЯВЛЕНИЕ
Authors: Габов А.В.
Published: September 2021

Рассматривается такое новое правовое явление, как цифровая платформа. Понятие «платформа» встречается в нормативных актах как СССР, так и Российской Федерации. Однако долгое время – только применительно к обозначению части инфраструктуры железнодорожного транспорта, а также для описания специфики ответственности в морском праве. И только в начале 2000-х гг. мы видим новое использование этого понятия для целей описания электронного взаимодействия в рамках т.н. «электронного правительства». С началом процесса создания нормативного обеспечения цифровой экономики мы видим массированное использование понятие «платформа» в документах политико-правового характера и нормативных актах. При этом автор отмечает бессистемность использования слова «платформа». Показаны примеры использования понятия «цифровая платформа», а также виды платформ и их классификации. Автор оценивает влияние платформизации экономики на право
ПЕРЕХОД ПРАВ УЧРЕДИТЕЛЯ АВТОНОМНОЙ НЕКОММЕРЧЕСКОЙ ОРГАНИЗАЦИИ
Authors: ГАБОВ АНДРЕЙ ВЛАДИМИРОВИЧ
Published: September 2021

Пандемия обострила и сделала актуальными множество проблем, которые в более спокойные времена не привлекали пристального внимания. Одна из них — переход прав учредителей некоторых унитарных некоммерческих организаций. В нотариальной практике стали возникать вопросы о возможности наследования прав и обязанностей учредителей автономных некоммерческих организаций: нотариусы исходят в таких случаях из невозможности наследования. Тем самым не только нарушаются права и обязанности наследников, но и ставится под угрозу существование таких организаций. Автор статьи показывает, что подобный подход противоречит действующему законодательству; при этом со всей очевидностью требуется довольно серьезная работа по модификации правового положения автономной некоммерческой организации.
Legal features of innovative (digital) entrepreneurship in the agricultural and food sector
Authors: Solovyanenko Nina I.
Published: September 2021

Modern agricultural production and food trade are involved in the process of digital transformation, which is a cardinal factor of sustainable development and is carried out on the basis of IT platforms, the Internet of Things, cloud computing, big data, artificial intelligence, blockchain technologies. The COVID-19 pandemic has increased the dependence of these sectors of the economy on information and communication technology infrastructure and services. At the same time, the slow updating of legislation, which lags behind the constantly improving digital technologies, not only hinders their implementation, but also is a source of a number of social and legal problems. A modern regulatory framework based on digital strategies should strengthen "smart agriculture". In Russia, the legal mechanism of digital transformation and development of the national platform "Digital Agriculture" should be supported by updated basic legislation.
Synthesis of Isatin and its derivatives containing heterocyclic compounds
Authors: MİSHRA Pratibha , MİSHRA Arunesh , BAHE Anıl Kumar , ROY Atish , DAS Ratnesh
Published: September 2021

Isatin or 1H-indole-2,3-dione or 2,3-dioxindole is an indole derivative. Isatin and its analogs are synthetically useful substances where they may be utilized for the production of a broad range of heterocyclic molecules, which are depicting a wide reach of biological and pharmacological activities, as well as anticancer, anti-inflammatory, antiviral, anticonvulsant, anti-TB, antidiabetic, anti-microbial, antitumor, antimalarial, anti-HIV, antibacterial, anti-analgesic, and antiplasmodial activities. Isatin is a precursor for many synthesized therapeutic molecules that are amenable to pharmacological action and have excellent biological potential. Isatin has a magnificent scaffold for both the natural and synthetic construction of molecules. These molecules are being used in drug therapy such as anticancer, antibiotic, and antidepressant drugs and have many more clinical applications. Due to its privileged scaffolding, the synthetic versatility of isatin has produced many structurally diverse derivatives, including the substitution of mono-, di- and tri- substitution of the aryl rings A and those derived by derivation of isatin nitrogen and C2 and C3 carbon moieties. As a result, improving and expediting access to isatin-related molecules is a challenging study in synthetic organic chemistry.
ABILITY TO READ QURAN AND UNDERSTANDING OF TAJWID FOR SRIWIJAYA UNIVERSITY STUDENTS
Authors: Safrina Sri , Irfan Muhammad
Published: September 2021

The ability to read the Al Quran and understanding the tajwid are two things that cannot be separated. Good reading skills without understanding the knowledge of tajwid will make the reading misleading. This study aims to determine the ability to read AlQuran, the ability to understand tajwid, and the correlation between these two variables in Sriwijaya University students. This research data was taken from 100 new Sriwijaya University students in 2019 and analyzed using statistical methods. The results of this study indicate that the majority of Sriwijaya University new students (42%) have reading skills in the range of 64-71 values ​​and the majority of mastery of tajwid (36%) in the range of values ​​56-63. The results of this study also indicate that there was a significant correlation between the mastery of tajwid and the ability to read AlQuran with a correlation coefficient (r) of 0.98.
THE PRINCIPLES OF ISLAMIC GUIDANCE AND COUNSELING IN MENTAL DEVELOPMENT ACTIVITIES IN THE STATE POLICE SCHOOL OF THE NORTH SUMATERA REGIONAL POLICE
Authors: Asiyah Siti , Achyar Saipul , Abdurrahman Abdurrahman
Published: September 2021

This research was conducted preceded by the desire of the researcher himself to explore the principles of counseling guidance at the State Police School (SPN) of the North Sumatra Regional Police. This study aims to determine the role of Guidance and Counseling in Mental Development activities at the North Sumatra Regional Police State Police School. The method used in writing this research was qualitative in a case study approach. The research data were collected through interviews and observations. Furthermore, the data were analyzed using thematic analysis techniques. The results showed that in terms of motivating the State Police School students to apply the principles of Islamic guidance and counseling, so as to achieve good learning outcomes and mentally healthy. This can be seen from the success of these students in completing the learning process. Furthermore, the mental assessment of students in terms of problems that did students have restrictions and obligations. If you violated the prohibition, you will be mentally reduced. Personality mentality reflected in student learning outcomes, so if the student's mentality was good then the performance will be good.
STUDENTS' UNDERSTANDING AND ATTITUDES TOWARDS SCHOOL-BASED MANAGEMENT FACULTY OF SCIENCE EDUCATION MAKASSAR STATE UNIVERSITY
Authors: Sola Ermi
Published: September 2021

This study aimed to determine whether there was a correlation between the level of students’ understanding of SBM (School Based Management) and students’ attitudes towards SBM in the Department of Educational Administration, Faculty of Education, Makassar State University. This research was a correlational research. The total population was 180 students and 42 of them were selected as samples taken through purposive random sampling technique. The research data were analyzed using Pearson Product Moment Correlation. The results showed that there was a significant correlation between students' understanding and their attitudes towards SBM. It can be concluded that the higher the level of students’ understanding of School Based Management, the more positive their attitude towards School Based Management.
METHOD OF EDUCATING WITH HEART ON STUDENT CHARACTER FORMATION AT MTS NURUL IMAN MODONG TANAH ABANG DISTRICT PALI REGENCY
Authors: Zaimmuddin Zaimmuddin , Fitriana Fitriana , Apriyanti Apriyanti
Published: September 2021

This study aimed to provide an overview of the implementation of the method of educating with heart on student character formation at MTS Nurul Iman Modong, Tanah Abang District, Pali. The research method used was a qualitative method. Data were taken through observation and interviews. Respondents consisted of 20 students of  grade 3 of Mts Nurul Iman Modong. The data obtained from observation and interview were then analyzed by using interactive analysis through several components, namely data collection, data reduction, data presentation, and drawing conclusions. The learning used in this research was the method of educating by heart. This study provided illustration that, through the concept of educating with heart can lead to a good, have moral and character generations.
THE UTILIZATION OF EDUCATIONAL TECHNOLOGY BASED ON ZOOM MEETING AND GOOGLE CLASSROOM IN THE PANDEMIC ERA
Authors: Wasehudin Wasehudin , Anshori Irfan
Published: September 2021

This research aims at how Zoom Meeting and Google Classroom media are used as technology media that could be a learning solution in this Covid-19 era. The method used in this study was based on qualitative research based on case studies, where the authors analyzed the collected data to be used as primary data sources in further research. The problem faced by institutions during the pandemic was that there were still most students who did not have adequate communication tools and internet network access. The ineffectiveness of using Zoom Meeting and Google Classroom learning media at the One Roof Middle School in Lontar was caused by the economic level of the parents of students, most of whom rely financially on seafood, so that most of the students found it difficult to provide supporting infrastructure for online learning. In addition, there were still many students who were clueless in the field of information technology (IT), making it difficult for them to operate the two online learning platforms.
THE IMPLEMENTATION OF ISLAMIC VALUES TO STUDENTS OF SD MUHAMMADIYAH 5 PALEMBANG DURING THE COVID-19 PANDEMIC
Authors: Nurbuana Nurbuana
Published: September 2021

The purpose of this study was to find out the ways in instilling Islamic values to students at SD Muhammadiyah 5 Palembang in the course of pandemic. During the Covid-19 pandemic, all activities accentuate the use of technological advances and were carried out online. The research method used was a qualitative method. Data collection was taken by conducting interviews and observations. Interviews were conducted orally with the headmaster and several teachers including Al-Islam teachers, classroom teachers and teachers in the field of study involved in the implementation of Islamic activities for students at SD Muhammadiyah 5. Furthermore, observations were made to observe the religious activities performed by the students. As the results of the study, information was obtained that the instilling of Islamic values in SD Muhammadiyah 5 Palembang students during the covid-19 pandemic was executed online (remotely) and offline (face to face), scilicet by instilling habits in students to carry out religious activities such as dispersing greetings (salaam), recitation activities, and memorizing short surah that were established online. As for the implementation of congregational prayers and the Qur’an, it was fulfilled once a week while still adhering to health protocols.
THE ROLE OF FOSTER PARENTS IN IMPLEMENTING CHARACTER EDUCATION
Authors: Susandi Ari , Salam Izzuddin Ibnu Abdis , Arifin Mohammad
Published: September 2021

The purpose of this research is to describe the role of foster parents in instilling the value of character education. Of course, parents should be more concerned with the child in order to get maximum education, especially at the age of the children. Considering that mothers are the first madrasas for children, they are instead left to work for the reason that they want to improve the family's economy. That way, parents leave their children in the hope of getting maximum care from those who care for them. This study aims to determine the role of foster parents in instilling character education in Puspan Village, Maron District, Probolinggo Regency. The data for the study were collected by selecting by observation, interviews and documentation. The samples were selected using a random technique based on the area or region where the data analysis technique used was by connecting the data with one another and the sample was three families who worked as laborers. Indonesian workforce consisting of three husband and wife couples who leave their children with the family of Mrs. Sunarsih, Mrs. Sum and Mrs. Nur Fadila. Based on data analysis, it was found that the role of foster parents in instilling character education in Puspan Village, Maron District, Probolinggo Regency has been categorized as successful. Because children are able to implement what has been taught by foster parents, they are able to become children's motivators, as facilitators, as guides in instilling the value of religious character education, independence, tolerance in children.
INTERNALIZATION OF CHARACTER VALUES BASED ON SPIRITUAL INTELLIGENCE AT SD ISLAM BANI HASYIM MALANG REGENCY
Authors: Hanief Muhammad , Hidayatullah Muhammad Fahmi
Published: September 2021

SD Islam Bani Hasyim was an educational institution with a concentration on cultivating character values in students. It could be proven through heterogeneous input without selection with a quota system producing input with a diversity of learners’ intelligence and behavior. SD Islam Bani Hasyim was able to process heterogeneous input through a process based on a program-based curriculum. The program-based curriculum had relevance to the inculcation of character values in shaping spiritual intelligence was the Islamic study program and submission. This research used a descriptive qualitative approach with a case study research. The data collection technique was carried out by in-depth interviews with school leaders, participatory observation, and recorded documentation of the work of SD Islam Bani Hasyim. Analysis of research data using interactive data analysis. The research results were as follows: First, planning for value planting through understanding the institution’s philosophy, compiling relevant programs with the institutional philosophy, and socialization. Second, the implementation of value planting through Islamic programs and submission to intracurricular, extracurricular and co-curricular activities in all subjects. Third, program evaluation through open and closed surveys as well as project and product-based assignments.
Bovine Mastitis in Eldamazine Locality – Blue Nile State
Authors: Mohamed Ismail Mohamed Fangama Myson Ali Babiker , Mohamed Abdelsalam Abdalla Siham Elias Suliman
Published: September 2021

This study conducted to examine the clinical bovine mastitis to isolate and identify the bacteria causing the disease and to determine the sensitivity pattern of isolates to commonly using antibiotic in Eldamazine locality, Blue Nile State. A total of 45 dairy cows clinically infected by different types of mastitis. Mastitis milk samples were collected from the animals and transported to microbiology laboratory for bacteriological examination. The samples were cultured in blood agar, MacConkey agar and purified in nutrient agar. Gram stain was used for morphological characteristics. Biochemical tests were done to all isolates. Sensitivity test was applied to gentamycin, ampicillin, vancomycin, ciprofloxacin, tetracycline and erythromycin. There were 3 types of mastitis were detected and these were acute mastitis with high prevalence (62.2%) followed by chronic mastitis (35.6%) and gangrenous mastitis (2.2%). The isolates were Staphylococcus spp (73.36%), Streptococcus spp (4.4%), Bacillus spp (8.9%) Pseudomonas spp, and Escherichia spp (8.9%). Also, the results revealed that high prevalence of Staphylococcus epidermidis (8.9%), followed by Staphylococcus hyicus (6.7%), Streptococcus agalactia (4.4%), and Pseudomonas aeruginosa (4.4%). Most effective antibiotics to isolated bacteria were ciprofloxacin, gentamycin, tetracycline, vancomycin and ofloxacin, while resistant to ampicillin and erythromycin. The species Pseudomonas aeruginosa were resistant to all antibiotics used. In conclusion, mastitis is associated with huge economic loss to farmers in the study area, and most effective control is prevention by using good management practices.
Evaluation of Antibacterial Activities of Fractions from Ethanol-Extracted Residues of Piper guineense Leaves on Gram Negative Clinical Isolate
Authors: Prince Chiazor Unekwe Tharcitus Chilaka Onwudiwe , Malachy Ifeanyi Obi Kingsley Chimsorom Chilaka
Published: September 2021

The problem of drug resistance to orthodox antimicrobial agents has remained a setback in the treatment of bacterial infections in the modern society. Adverse effects, coupled with scarcity and high cost of orthodox drugs have necessitated interest in the search, development and use of antibacterial agents from plant origin. Piper guineense is claimed in traditional medicine as a remedy for gram negative organism-transmitted infections. The leaves of Piper guineense plant was collected, washed, dried at room temperature and pulverized. The plant material was extracted with 80% ethanol. The ethanol-extracted residue was subjected to fractionation. Seventeen fractions were obtained, and were pooled together based on their Rf values into five pooled-fractions labeled: PF-1, PF-2, PF-3, PF-4, PF-5. Both the ethanol and fraction extracts were subjected to phytochemical analysis, preliminary antibacterial screening, minimum inhibitory and minimum bactericidal concentrations determination using both clinical isolates and type culture organisms. The yield of ethanol-extracted residue was low (21.08g) when compared to the amount of pulverized plant material (500g). Phytochemical analysis revealed the presence of flavonoids, alkaloids and terpenoids in all the extracts. The extracts produced statistically significant lower zone of inhibition (p<0.05) when compared with the standard drug (amoxicillin), it also demonstrated activity against test organisms used in the study. The findings of this study demonstrated that ethanol leaf extract of Piper guineense possess antibacterial activities, therefore justifies the traditional claim of the plant.
Effect of Different Types of Packaging Materials on the Shelf Life of Pasteurized Camel Milk
Authors: Ayman Diaf Alla Ismail Alshikh Ahmed Elghali Mohamed Khalil , Mohamed Abdelsalam Abdalla Ahmed Eltigani Almansoori
Published: September 2021

Nine types of packaging materials were tested on this study Included (I) Polyethylenetetraphthalate (PET) Bottle, (ii) Polypropylene (PP) Cup, (iii) polystyrene (PS) Cup, (iv) Low density polyethylene (LDPE) Bottle, (v) Light Proof Polyethyleneterephthalate(LPET) Bottle,(vi) High density Polyethylene(HDPE) Bottle, (vii) Aluminum Cans, (viii) Glass(Emerald Green) and (ix) Cartoon bottles (250 ml size) were dispensed in the aseptic condition with Pasteurized camel milk (80 ˚C,16s) for two seasons Summer and Winter and stored immediately inside the chiller at 5 ˚C for 30 days, The camel milk samples were examined for microbial quality, sensory evaluation, also food packaging materials were examined for overall migration test, approximate shelf life of the pasteurized camel milk at temperature 5 ˚C in all types of packaging materials in our study period 30 days, Sensory Evaluation results shown that there is significant differences within best packaging materials, so we can say best packaging materials not same in summer and winter. We see also the best packaging materials is not same in winter of all type of Sensory Evaluation with one ranking (PS, HDPE) respectively, but not difference in summer, so the best in winter is (PP - PS – PET) respectively, lastly the overall migration test analysis for the food packaging materials shown that there are no significant differences within packaging materials. So we can say responds in group equally at all packaging materials and all samples meets the specification limits as per Article 12, EU 10/2011.
Extent of Adoption of Recommended Poultry Farming Practices by the Farmers
Authors: G. S. Bangarwa Hanuman Sahay Bunkar
Published: September 2021

The poultry production in our country has made a significant progress over the years due to research and development thrust of the government and organized private sector. Poultry farming is considered as an important tool for self-employment as it offers vast scope for generating income in socially and economically backward areas. No other livestock production programme in our country has made as much progress in a short period as the poultry sector has made. The revolutionary changes made in poultry industry in the last four decades is a matter of great pride. The poultry sector provides livelihood to nearly one lakh farmers and contributes to a great extent to the national income. In Rajasthan, poultry industry is a live segment and source of revenue to the government. In the last five decades, Jaipur region has made manifold progress in the development of the poultry sector. Jaipur district is one such districts which has made a great headway in the promotion of poultry sector. With more than 14889 organized poultry farms, it has engaged more than 45000 people directly or indirectly.