bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation of deformation procedure in waterbed of rivers
Authors: Arifjanov Aybek , Akmalov Shamshodbek , Akhmedov Islombek , Atakulov Dinislom 
Published: December 2019

Abstract
The article is about the questions study of procedure in waterbed with modern GIS (Geographic Information System) technologies. Data from the Landsat satellite innovation technology was used. Map of Sox River has been created with using satellite data. Existing parameters of waterbed and surface of water in it are analysed. Chart is created that makes link between surface of water and discharge in Sox River. Based on the graphic, deformational processes are analysed. The obtained data were compared with field geodesic studies.
Security of user authentication in payment systems in the agricultural value chain
Authors: Polyakov N , Tishkin F , Cherckesova L , Safaryan O 
Published: December 2019

Abstract
In the offered article, the threats of informational safety, arising in the modern world, directed on the bank and commercial payment systems using in all world and in Russia in particular are considered. The circuits of operation of the most popular Russian banking and commercial payment systems using electronic money (e–cash) and their possible vulnerability caused by increase of monetary calculations through the Internet are described. Not all bank devices support biometric scanning; therefore, there is question on how the huge amount of bank payment systems users can protect their personal data from not authorized operations (hackers breaking)? For support of payments safety, the paper offers using the additional complicated authentication – the application of simplified cryptography token which is looking like program application, and installed on USB – device. It will allow amplifying the safety at authentication stage as the program application generating of one – time keywords and checking (controlling) of user’s authenticity with the help of white list, is capable to eliminate all existing vulnerabilities and gaps in the informational protection of banking and commercial payment systems.
Digital technologies for organic agribusiness in Russia
Authors: Akhmetshina Liliya , Mussina Alma , Izmaylova Svetlana 
Published: December 2019

Abstract
Organic production is a priority in the development of the green economy. The aim of the study is to identify opportunities for the prospective development of organic agribusiness in a digital environment and on the way to a green economy. The research methods were the study of the scientific literature and the regulatory framework, followed by a generalization of the received information, as well as analytical and comparative methods. The study made it possible to assess the current state of organic agribusiness. The introduction of digital technologies involving the automation of production, technological, and managerial processes will contribute to the prospective development of organic agribusiness, will allow the production of better products with less harm to the environment, and will also increase the efficiency of organic production due to more economical use of resources. As a result of the study, the directions of greening and digitalization of agribusiness in Russia were identified with a view to transition to a green economy. The practical significance of the study lies in the possibility of using the results in the development and improvement of the regulatory framework for the development of organic agriculture.
Competitive products design in public catering
Authors: Kurakin Mikhail , Ozhereleva Anastasia , Baranets Svetlana , Grigorieva Rose 
Published: December 2019

Abstract
A nutritious and safe diet maintains human health and endurance. In addition, it preserves the national gene pool. Unfortunately, Russian diet is poor in vitamins C, PP, B1, and E, as well as in folacin, calcium, phosphorus, iodine, iron, magnesium, and zinc. The present research introduces a new method of assessing the degree of demand for designing new foods and dishes that provide various socio-demographic groups with essential nutrients. The research employed standard scientific methods, both empirical and analytical. The new method presupposes scoring four main sets of properties of the product under development. They include 1) formula components; 2) functional properties; 3) technological effectiveness of the cooking process; 4) consumer performance. The paper describes the score assessment for each indicator that forms the basis of each set of integrated properties. It also defines the weight coefficients for each indicator and each set of product properties. The research provides boundary values for the feasibility coefficient. The practical application of the proposed method allows to create functional competitive dishes for catering enterprises of different ownership forms. The developed method makes it possible to design functional dishes with a sufficient content of nutrients and consumer performance required for a particular social group, e.g. pre-schoolers, school children, coal miners, chemical industry workers, etc. The method will allow producers to design competitive products and expand the range of functional products.
Heavy metals content in agricultural soils of Vladimir region, Russia
Authors: Selivanov Oleg , Martsev Anton 
Published: December 2019

Abstract
The research presents the results of our field study of the arable layer of agricultural soils in 2017. The study was carried out applying continuous agrochemical testing of the following heavy metals: gross content of Pb, Cd, Cu, Zn, Co, Mn, Ni. Atomic absorption spectroscopy was used to determine heavy metals in soil. The hazard coefficient was used to assess the soil pollution level. Heavy metals concentration in arable soils of the Vladimir region range as follows (min → max): Cd-0.13-0.36 mg / kg; Cu – 2.11 - 10.2 mg/kg; Co – 2.62 – 7.9 mg/kg; Pb – 3.43 - 10.2 mg/kg; Ni – 2.78 - of 15.6 mg/kg; Zn – 12.5 – 35.6 mg/kg; Mn - 136 - 541 mg/kg. Calculating the hazard ratio, the series is presented differently: Cu →Pb →Mn →Co→Zn→Ni→Cd. In comparison with background indicators gross content increase of the following elements occurred in the region: Pb (17.2%), Cu (13.5%), Zn (1.3%), Co (17.4%). Cd and Mn slightly decreased. Ni showed no changes. Fertilizers are the main source of HM in the arable layer. The research show that heavy metals gross content in the arable soil layer in the region does not exceed MPC; thus, arable soils in the Vladimir region are slightly polluted with heavy metals and are not harmful to human health.
Assessment of bioclimatic comfort of the Krasnodar Krai
Authors: Gura D , Kuzyakina M , Gribkova I 
Published: December 2019

Abstract
The paper identifies bioclimatic comfort zones of the Krasnodar Krai. The studied bioclimatic indices take into account the combined influence of temperature, wind speed, relative humidity, atmospheric pressure, solar radiation in various combinations. The geoinformation analysis of the following bioclimatic indices was carried out: effective temperature, equivalent effective temperature, bioclimatic active temperature, radiation equivalent effective temperature, and a comprehensive indicator of the level of pathogenic weather in the Krasnodar Krai. The pathogenic weather index is the only index considered in this paper that takes into account atmospheric pressure. Comfortable months for living in the Krasnodar Krai have been established, as well as areas of the Krasnodar Krai that are favorable for living at any time of the year. However, peak values are not necessarily adverse. During these periods, sometimes healthy people experience an improvement in mood and a surge of strength, while overworked ones respond by aggravation of their condition. Thus, the Krasnodar Krai was divided into 4 comfort zones: Azov-Black Sea, Black Sea, South-East foothill and continental.
Methods of rating assessment for terminal and logistics complexes
Authors: Pokrovskaya Oksana , Fedorenko Roman 
Published: December 2019

Abstract
The transport and logistics market make high demands on the speed of decision making and their economic feasibility. In the conditions of a dynamically developing market of transport and logistics services, decision-making must be carried out quickly, on the one hand, and reasonably on the other. The adoption of such decisions in complex terminal systems for the delivery of goods requires the use of methods that allow such a comprehensive assessment. Obviously, the methodology should be objective and consider many factors of the work of the terminal and logistics complexes. This circumstance determines the relevance and purpose of this work - the development of methods for integrated assessment of the parameters of the terminal and logistics complexes based on the total rating. To achieve the goal and approbation of the methodology, we used programming tools in the Scilab environment, as well as methods of systems theory, terminalistics, logistics, economics, organization and planning of railway transport operation, expert assessments, SWOT analysis, calculation of parameters of freight fronts, score ratings, linear and dynamic programming. The practical significance of the results obtained in the study is to develop applied assessment tools for conducting an express analysis of the activities of terminal and logistics complexes on several key parameters. The subject of future research may be to solve the problem of reducing the subjectivity of evaluation by this method.
The motion of the wagon on the marshalling hump under the impact of air environment and tailwind
Authors: Habibulla Turanov , Elena Timuhina , Andrej Gordienko 
Published: December 2019

Abstract
The effect of the tailwind on the wagon when it is rolling down from the hump is discussed. The movement of the wagon on the profile of the marshalling hump is studied. The article applies the theorem on the addition of velocities in complex motion in vector form. Errors in determining the specific resistance to the movement of the car from the air and wind arising from empirical relationships taking into account the aerodynamic characteristics of the cars are mathematically substantiated. The results of the research can be used in the processing of the normative-technical document on the design of hump devices on railways and making adjustments to the dynamics of rolling the wagon in textbooks for universities of railway transport. The results of this study prove the need to revise the practical significance of the formula for finding the specific resistance to the movement of the car from the air and wind in the normative-technical document “Rules and regulations for the design of sorting devices on the railways track gauge 1 520 mm ".
Designing the height of the first profile of the marshalling hump
Authors: Habibulla Turanov , Elena Timuhina , Andrej Gordienko 
Published: December 2019

Abstract
The height of the high-speed section of the sorting slide is studied. Design of high-speed section of the marshalling hump is discussed. The aim of the study was to mathematically prove the absence of theoretical basis of the formula by which the height of the first section profile of the marshalling hump is calculated in the current method for calculating marshalling humps. The paper uses the theorem on the change in kinetic energy for a non-free material point in the final form, known from theoretical mechanics. The results of the study showed that the formulas used to calculate the height of the first section of the marshalling hump contradict the theorem on the change in kinetic energy for a non-free material point in its final form. The results of the research can be used in the processing of the normative-technical document on the design of hump devices on railways and making adjustments to the dynamics of rolling the car in textbooks for universities of railway transport. The results of the calculations proved the incorrectness of the derivation of the formula for calculating the height of the first profile section of the marshalling hump in the normative-technical document “Rules and standards for the design of sorting devices on the railways with gauge 1 520 mm”.
Cytotoxicity of marine-derived fungi collected from Kepulauan Seribu Marine National Park
Authors: Nursid M , Dewi A S , Maya D , Priyanti  
Published: December 2019

Abstract
Marine-derived fungi are of great interest as new promising sources of biologically active products due to its diversity in chemical structures and biological activities. The objective of this study was aimed to determine the cytotoxicity of marine sponge-derived fungi that collected from Kepulauan Seribu Marine National Park. The fungi were fermented in a static liquid culture of malt extract broth medium (containing 0.3% malt extract, 0.3% yeast extract, 0.5% peptone and seawater) for 3 weeks at 27-29°C. Bioactive secondary metabolites of fungi were extracted using ethyl acetate. Cytotoxicity of the extract was performed by using MTT assay. A total of 17 isolates were tested against T47D cell at a concentration of 30 µg/mL, among them, isolate of MFP270 exhibited the strongest cytotoxicity. Further analysis showed that mycelium extract of MFP270 had stronger cytotoxicity (IC50 = 28.3 µg/mL) than broth extract (IC50 = 645 µg/mL). The MFP270 marine fungal was identified as Aspergillus sp. base on its morphology features.
Economic valuation of mangrove ecosystem in Cilamaya Wetan, Karawang, West Java
Authors: Purida N , Patria M P 
Published: December 2019

Abstract
Cilamaya Wetan has 738 hectares (ha) mangrove forest which provides real functions and benefits to the local community ecologically, physically and economically. The ecosystem is typically crucial, hence the benefits and values need to be identifed and estimated economically. The purpose of this study was to estimate the economic value as the basis of the conservation program. Research on economic valuation was conducted in March-May 2019. The method was applied to estimate total economic value (TEV) consisted of direct-use value (fuelwood collection, seed collection, and nearby fishing activities); indirect-use value (natural barrier to shoreline erosion, food source for animal and carbon potency for sequestering CO2), option value (biodiversity benefits), and existence value (willingness to pay). Results showed that the TEV of mangrove ecosystem in Cilamaya Wetan per year accounted for 419 billion rupiah or equivalent to IDR 568,067,635/ha/year or equivalent to 39,753 USD/ha/year.
Growth pattern and condition factor of giant catfish (Arius thalassinus) in the Cilacap water, Central Java
Authors: Anggawangsa R F , Faizah R 
Published: December 2019

Abstract
Giant catfish (Arius thalassinus) is one of demersal fish that has important economic potential. In the Cilacap waters, this fish caught by gillnet. Study of giant catfish is still limited. The objective of this study was to obtain the growth pattern and factor condition for giant fish in the Cilacap waters. This study was conducted from January to December 2015 in the Ocean Fishing Port of Cilacap, Central Java. A total number of 1126 individual of Arius thalassinus caught by gillnet was observed during the sampling periods. Total length and weight those fishes were analyzed. The result showed that the size ofgiant catfish caught by gillnet ranged between 20.2-62.2 cm FL with an average was 40.2 cm FL and weight between 147-4,205 g with an average was 1,400.7 g. The growth pattern of giant catfish was positive allometric was expressed by equation W=0.0158 × L3.0546, r2 = 0.9775. Condition factor of giant catfish was ranging from 1.8-2.1.
Characteristics of chemical compounds of horseshoe crabs Tachypleus gigas in different body proportions
Authors: Suwandi R , Nurjanah  , Ula M Z , Pertiwi R M 
Published: December 2019

AbstractHorseshoe crabs are a marine animal that has been widely used empirically, but in Indonesia the exact bioactive compounds are unknown. People poisoning caused by consuming horseshoe crabs has also been reported. The aims of this study was to observe the bioactive compounds in every part of horseshoe crabs which suspected to be related to toxicity. The work was conducted to measure morphometrics, to count body proportions, and to determine phytochemical compositions, toxicity, and antioxidants in different body proportions. Female horseshoe crabs with average weight more than 500 g were obtained from the waters of Lamongan Regency in July 2018. The highest proportion of the different body parts was the shell and the lowest was viscera. Edible portions of horseshoe crabs were 45.39%. Meat contains low fat 1.97% and high fat in gonads 4.87%. The solvent that produces the best extracts from the gonads was ethanol and used to extract meat, viscera, and gills. Viscera extracts were toxic with values of LC50109.44 ppm, gonad and meat extracts have not shown to be toxic with values of LC501251.30 and 1101.79 ppm. Antioxidant activity of meat is weak (164.50±23.16 ppm), and gonads are very weak (330.47±02.60 ppm).
Effects of water chestnut (Eleocharis dulcis) extract on the shelf-life of refrigerated catfish (Pangasius sp.) fillet
Authors: Baehaki A , Herpandi  , Rosalina  
Published: December 2019

AbstractThis study was aimed to determine the effect of water chestnut (Eleocharis dulcis) extract on catfish (Pangasiussp.) fillet stored at cold temperatures. Several stages were carried out including sampling, sample preparation, sample extraction, and fish filleting. Extraction of multilevel maceration with a sequence of solvents n-hexane, ethyl acetate, and 70% ethanol was carried out. The parameters observed were protein content, TVBN, total plate count (TPC), and whiteness. The results showed that protein content decreased while TVBN and TPC levels increased during storage. The addition of water chestnut extract reduced the levels of TVBN, TPC of the fillet, and whiteness.
Enzyme-assisted extraction of fatty acid from Caulerpa lentilifera: a preliminary study
Authors: Rahmawati S I , Izzati F , Hapsari Y , Septiana E , Rachman F , Bustanussalam  , Simanjuntak P 
Published: December 2019

Abstract
Polyunsaturated fatty acids (PUFA) are essential nutrients that play an essential role in the functioning of the brain and cell growth. Mammals, including human, cannot synthesize PUFA. Therefore, the intake of PUFA must be obtained from dietary sources. Marine macroalgae, such as Caulerpa lentilifera, are excellent sources for high PUFA. The extraction of PUFA in the pure form is usually carried out by conventional extraction whereas not environmentally friendly. Therefore, using enzymatic-assisted extraction is a great alternative to obtain PUFA from Caulerpa sp. with lower cost and fewer usage of solvents. In this research, we examined the effectivity of enzyme-assisted extraction using papain enzyme because its cheap and easy to find. The optimum extraction method to obtained bioactivity from lipid extract of C. lentiliera by enzyme assisted extraction using papain enzyme was 0.5% concentration of papain, temperature 60°C for 16 hours incubation.
Substrate combination of Lemna minor and muds affects biomass and population of Tubifex sp.
Authors: Mahendra  , Damara D , Nufus M , Putri V R 
Published: December 2019

Abstract
This study was aimed to determine the effect of the use of a substrate of Lemna minor and mud on the biomass and silkworms population. This experimental study was designed completely random using five treatments and three replications. The treatments given were P1=a growing medium with 500 g of L.
minor, P2=a growing medium with 375 g of L. minor, P3=a growing medium with 250 g of L. minor, P4=a growing medium with 125 g L. minor, and P5=a growing medium 0 g of L. minor. The parameters observed included the amount of biomass, population and water quality parameters, including temperature, pH, and DO. Data were analyzed statistically using ANOVA and tested further with the Least Significant Difference test (LSD). Results from a 50-day study showed that differences in formulations had a significant effect (P<0.05) on biomass and population. The best treatment found in P1 produced 8.60 g biomass within population.
PCR-RFLP as a detection method of allelic diversity seahorse Hippocampus comes (Cantor, 1849) from Bintan waters, Riau Island
Authors: Meikasari N S , Nurilmala M , Butet N A , Sudrajat A O 
Published: December 2019

Abstract
Seahorse (Hippocampus comes) is a unique species which reproductive system pregnancy occur in male organisms. According to IUCN and CITES, seahorses are noted as endangered or vulnerable and Appendix II species. The aimed of this study was to identify the allelic diversity based on Polymerase Chain Reaction Restriction Fragment Length Polymorphism (PCR-RFLP). Samples were collected from Tanjung Berakit, Bintan waters, Riau islands. Total of 11 individuals of the species were analyzed two types of restriction enzyme, EcoRI and AluI. This study showed that there were two types of DNA fragmentations based on restriction enzyme. EcoRI enzyme was unable to cut the target DNA fragments. AluI enzyme was capable of bypassing the target DNA fragment so it could be visualized by two alleles. The genetic diversity values of less than one showed that the genetic diversity of the population of seahorse species of H. comes in Bintan waters was low.
Lesson learned of EAFM from pole and line fishery based in Sikka Regency, Nusa Tenggara Timur
Authors: Satria F , Sadiyah L , Widodo A A , Wudianto  
Published: December 2019

Abstract
Sikka Regency, Nusa Tenggara Timur is one of the key landing places for tuna in Indonesia’s archipelagic waters (IAW), which was selected for pilot scale application of EAFM. This study was aimed to identify some best practices of the EAFM application from pole and line fishery based in Sikka Regency. Pole and line data were collected by the observer and port sampling programs, data from handline fishery collected from other areas within the IAW was also investigated. Furthermore, for broader comparison purposes, trends from purse seine fishery operated in other areas within the IAW were also used. Data from pole and line fishery in Sikka Regency were analyzed to obtain length distribution by gear. Stakeholder consultative meetings were conducted to investigate some key issues and possible improvements for the fishery. Skipjack was the most predominant species caught by pole and line and purse seine (> 60%) but mostly immature fish. All yellowfin tuna caught by pole and line and purse seine was immature. It is recommended to reduce small-sized yellowfin catch and to maximize the economic benefit to local fishers. In addition, improvement of FAD management implementation, monitoring, and law enforcement are required reflected best practice of EAFM.
Nano collagen of the grouper swim bladder in compliance with quality standard of cosmetics materials
Authors: Trilaksani W , Adnyane I K M , Riyanto B , Safitri N 
Published: December 2019

Abstract
Research of swim bladders on many species revealed that this organ has a high protein content that very potential as a source of collagen. This research aimed to isolate collagen from swim bladders of grouper, convert it into nano collagen, and determine the conformity of collagen with the quality standard of cosmetic materials. Collagen isolation was initiated by the process of elimination all non-collagen protein and other impurities (pre-extraction) with alkaline (NaOH) 0.05 M for 10 hours, followed by extraction with acetic acid 0.5 M (CH3COOH) for 48 hours with a sample and solvent volume ratio of 1:20 w/v at 4°C. The yield of the extracted collagen was 18.96±1.53%, solubility 81.10±0.88%, and whiteness 90.58±0.13%. Analysis of functional groups showed the presence of amide A, amide B, amide I, amide II, and amide III which indicated as a type 1 collagen. Collagen extract showed positive result for the coloring of Casson’s trichrome. Ultrasonicated nano collagen for 150 minutes had a particle size of 404.1 nm and a polydispersity index of 0.446. The chemical compositions of collagen overall have met the quality requirements of collagen standards as a cosmetic material based on SNI 8076-2014.