bluuebunny/crossref_metadata_2025_split huggingface dataset:
Determination of CAST gene polymorphism in sheep of the Volgograd breed
Authors: Kolosov Yu A , Gorlov I F , Kolosov A Yu , Shirokova N V , Kulikova A Ya , Kolosova M A , Slozhenkina M I , Vorontsova E S , Kolosova N N 
Published: March 2021

Abstract
The scientific publication presents the results of studies of CAST polymorphism in sheep of the Volgograd breed. Against the background of the limited application of the results of genetic studies when working with the Volgograd breed, the search for polymorphic variants of the calpastatin gene, which is a potential marker of meat quality during maturation after slaughter, and also, according to some data, the live weight of sheep, is an urgent task. Calpastatin is an enzyme belonging to the calpain family of enzymes. CAST gene polymorphism was determined by PCR-RFLP analysis. To carry out molecular genetic studies in sheep of the Volgograd breed (n = 131), tissue samples were taken from the auricle with an area of 1 cm2 (ear pinches). In sheep of the Volgograd breed, the presence of two genotypes MM, MN was established with a frequency of 88 and 12%, respectively. The M allele and the homozygous MM genotype had the highest frequency. The analysis of the materials obtained as a result of the control slaughter shows that the Volgograd sheep of the MN/CAST genotype exceeded their peers with the MM/CAST genotypes by 3.7 kg in pre-slaughter weight. The presence of variability at these loci provides a basis for controlling meat productivity in sheep of the Volgograd sheep population, therefore, in breeding farms, monitoring of polymorphism and selection for the calpastatin gene should be carried out.
Management of home garden in formal and informal settlement along riparian Ciliwung river in Bogor
Authors: Kharisma D , Kaswanto  
Published: March 2021

Abstract
A lot of land-use conversion occur from open land areas to built-up areas, such as riparian that have been converted into settlement areas. The riparian is a buffer zone between aquatic and terrestrial ecosystems, which means that the riparian has many environmental roles. However, its ecological function and existence continue to be degraded due to settlement activities. The presence of settlements in the riparian cannot be simply eliminated; therefore an ecological approach is needed so that the presence of settlements does not always have a negative impact for the river. This approach can be seen through the management of Green Open Space (GOS) in the riparian area, ecologically GOS has many benefits in improving the quality of the riparian environment, and the GOS closest to the settlement is the home garden. This research was conducted in two types of settlements, namely Formal and Informal settlements, which are in the three riparian segments of the Bogor City Siliwung River, namely the upper, middle, and lower part. The purpose of this study is to analyzing the characteristics of the home garden in formal and informal settlements in the riparian area of the Ciliwung River in the City of Bogor, knowing the community’s perception of the existence of the home garden affecting the sustainability of the Ciliwung River and the results of this research is to provide recommendations for proper and sustainable home garden management in the Ciliwung River in Bogor Municipality.
Postharvest physiological deterioration in cassava: potential problems, possible inhibition, and resistant level identification
Authors: Rahmawati R S , Sukma D , Ardie S W , Sudarsono S 
Published: March 2021

Abstract
Cassava roots can only be utilized quickly because the roots suffer physiological damage in only 1–3 days after harvest because of postharvest physiological deterioration (PPD). Once the cassava roots are physiologically damaged, they cannot either be consumed or marketed. Indonesia is the second-largest cassava producer in Southeast Asia that is most used for food and feeds. Unless there is a solution, the PPD problem may become the main obstacle in cassava production. Therefore, finding solutions to the PPD problem in cassava is necessary, may be approached either by treatment to inhibit PPD occurrences, identification of tolerance accessions among cassava germplasm, and development of PPD tolerance cassava through breeding programs. In our research, the identification method was done by applying various staining methods to detect color changes associated with PPD symptoms during the cassava storage period and then compared to the conventional observation of PPD symptoms. Subsequently, the effective staining approaches are used to evaluate various genotypes’ responses in the cassava germplasm collections. Finally, the breeding approaches to develop PPD tolerance cassava varieties are outlined. Hopefully, with these research results, the solution for PPD problems associated with cassava production in Indonesia will be available.
Quantitative assessment of mosaic disease severity based on digital image processing
Authors: Hasan A , Widodo  , Mutaqin K H , Hidayat S H , Taufik M 
Published: March 2021

Abstract
Quantitative assessment of plant diseases can be done relatively quickly and practically, especially when applying digital image processing. This paper discusses digital image potential for assessing mosaic symptoms caused by the Tobacco mosaic virus (TMV). Chili plants (Capsicum annuum L.) were grown in pots and subjected to two treatments, i.e., non-inoculated (V0) and TMV inoculated (V1). Plant image recording using a Canon 750D camera with a kit lens was done once a week, starting when the mosaic symptoms are first visible, i.e., in the second-week post-inoculation. Recorded images in RAW format were first converted to TIFF, then subjected to further analysis using image processing applications, namely GIMP 2.8 and Fiji-ImageJ. Differences in the RGB profile of leaves given V0 and V1 treatment was observed. Non-inoculated leaves (V0) have a dark green color pattern, while TMV inoculated leaves (V1) tend to have a mixed color pattern of dark green and bright green. In general, this indicates a decrease in chloroplast’s ability to absorb light in diseased leaves, reducing the photosynthesis level. This preliminary experiment shows digital image processing’s potential for estimating the severity of mosaic disease with a high degree of accuracy and precision.
Effect of soybean leaf trichomes on the preference of various soybean pests on field
Authors: Faiz M F , Hidayat P , Winasa I W , Guntoro D 
Published: March 2021

Abstract
Trichomes as morphological characteristics of soybean plants can affect the behaviour of some insect pests. Insect behaviour can be affected positively, negatively, or neutral by trichomes character depending on the insect species. This research is aiming to know the effect of soybean leaf trichome density on various species of soybean pest population dynamics using five local varieties from Indonesia (‘Anjasmoro’, ‘Argomulyo’, ‘Dena-1’, ‘Grobogan’, and ‘Devon-1’). In this research, the pest population on the field was observed by active observation method on the five different soybean varieties every once a week that also treated with corn plant and Crotalaria juncea around plots as barrier plant and refugia plant (with and without barrier plant). The result indicates that a higher number of abaxial leaves trichome density has a negative effect on Empoasca sp. population, which is the opposite of the effect known given to Bemisia tabaci. The leaf trichome density does not have a distinctive impact on aphid, herbivorous orthopteran, and various lepidopteran foliage-feeders founded on the field. This research result may provide information related to additional alternatives for pest management using plant physical traits to enhance plant resistance and encouraging the use of integrated pest management.
Application of Cu and Zn to improve the growth of maize and sorghum in high-pH soils
Authors: Knaofmone Elfrida , Suwardi  , Sumawinata B , Djajakirana G 
Published: March 2021

Abstract
One of the constraints for crop cultivation at high-pH soil is the low content of micronutrients, especially Cu and Zn, such as in East Nusa Tenggara (ENT) Province with dry climatic conditions, hilly topography, and parent material of limestone. In such land conditions, the ENT community used widely for the cultivation of maize and sorghum crops. Besides of water availability, the main obstacle for growing crops is the low availability of micronutrients such as Cu and Zn, which induces plants can not produce grow optimally. To solve this problem, plants need to be applied fertilizer of Cu and Zn through soils or leaves. This study aimed was to determine the effect of Cu and Zn micronutrients on the growth of maize and sorghum as well as the contents of macro-and micronutrients in plants. Copper and Zn micronutrients are applied in the form of EDTA (Ethylene Diamine Tetra Acetic Acid) and sulfate compounds, which spread through the soils and sprayed through the leaves. Plant growth was observed five weeks after planting, and leaf analysis was carried out after cutting five weeks after planting (WAP). The results showed that application of Cu and Zn tended to increase the growth parameters of maize and sorghum increased the macronutrients of N and P in maize and N, Ca and Mg in sorghum plants. There are no different effects of micronutrients in the form of EDTA and sulfate compounds. The application of micronutrients is more effective by foliar application than application through the soil.
A New Efficient Rectifier Circuit Based on Nonlinear Inductance Impedance Conversion
Authors: Hou Yunhai , Zhang Yumo , Yao Qingchao 
Published: March 2021

Abstract
The conventional capacitor filter bridge rectifier circuit has the characteristics which the input current is discontinuous, peaked and contains high-order harmonics. A new nonlinear inductance impedance transformation circuit is presented based on the the characteristics of general rectifier circuit in this paper. Before being used in capacitance filter of the general bridge rectifier and it ensures that when the power voltage is lower than that of rectifier the value of nonlinear resistance will vary with the voltage to check the dead area range for input current and decrease harmonics. It improves the character of power factor, and is important to energy saving.
Optimization of impacts parameters on the equipment of electrical networks during operation according to the technical condition
Authors: Levin V M , Guzhov N P , Chernenko N A , Cheganova N F 
Published: March 2021

Abstract
Scheduled operation of power grid facilities is regulated by the relevant regulations based on a system of scheduled preventive maintenance. Maintenance and repair (M&R) of power grid facilities due to their technical condition increases demands for planning methods and models. In these conditions, the goals of the M&R management are aimed at improving the efficiency of the operation of electrical networks. They differ depending on the purpose and form of ownership of the latter. The article suggests a combined approach to planning maintenance of electrical networks using strategy depending on their technical condition based on optimization of impact parameters such as frequency and labor intensity under specified constraints and variability of management goals. To implement the proposed planning procedure, the authors developed and verified models of process maps. Each of them represents a local database including the information about the composition and complexity of operations, depending on the type of equipment and the type of corrective actions. In addition, a set of operational algorithms, that solve the issues of process automation in the maintenance system of electrical network equipment, has been developed. The analysis and discussion of the developed models and algorithms are carried out on a specific example illustrating the possibilities of improving the efficiency of equipment operation in the electrical networks on the oil fields.
Study of toxic impact of fly ash bearing construction materials on aquatic organisms
Authors: Goncharova E N , Lebedev M S , Vasilenko M I , Kozhukhova N I 
Published: March 2021

Abstract
The article studies the toxicological characteristics and behavior of geopolymer samples GB-1 and GB-2 based on fly ash from thermal power plants. Cement paste also was used to provide comprehensive comparative analysis. Aerated tap water was used as a reference medium. The toxicity of the studied materials was determined by applying standard biotesting methods using such aquatic organisms as Scenedesmus
quadricauda microalgae and cladocerans Daphnia magna. Based on the obtained experimental and analytical data, it was found that the most favorable environment for algae is sample GB-2. Different behavior is observed in crustaceans. In this case, the most favorable medium for acute and chronic toxicity is a cement paste. The highest toxic effect is observed in the GB-1 sample medium vs. the others studied samples for all considered parameters of toxicity, including chronic one: the decrease in the concentration of algae is 30-35 %; the death of daphnia is 50-80 %. Chronic toxicity, which was determined by the value of the total fertility of daphnia in GB-1 medium, is 5-18 times less compared to the Reference sample.
Logistic and mathematical model of application efficiency liquefied natural gas
Authors: Medvedeva O N , Perevalov S D 
Published: March 2021

Abstract
Today, natural gas, with certain advantages over other fossil fuels, is one of the main energy resources for various industries and housing and communal services. As a rule, when choosing a gas transportation method for different categories of consumers, several options are considered depending on the mutual removal of the source and the consumer – construction of a gas pipeline or the creation of a liquefied gas infrastructure. Analysis of energy supply problems in some constituent entities of the Russian Federation showed that a reasonable choice of technological parameters of a gas distribution system based on liquefied natural gas (LNG) is an urgent task that requires preliminary modeling. The paper proposes a solution to a particular problem of supplying consumers with liquefied natural gas, a logistic model for the optimal functioning of the system for the complex: LNG plant – a consumer. Based on the results of calculations for the conditions of the Republic of Karelia, recommendations are proposed for the optimal location of the source (LNG plant) and optimization of the transport component.
Simulation of the hydrodynamics in polymerizers based on the CFD model for the synthesis of rubbers and plastics using the method of the solution polymerization
Authors: Antonova I O , Dmitricheva R R , Manuyko G V , Aminova G A , Bronskaya V V , Kharitonova O S , Gimaltynov A T , Ignashina T V , Balsamov D S 
Published: March 2021

Abstract
Mixing in a viscous medium, such as in polymerization processes, is worth noting. To control the polymerization process for improving the product quality, it is important to understand the mixing process. Also, it is essential to understand the flow behaviour in the stirred-tank reactor for the equipment design and from the point of view of the large-scale transition of the process. Local and general characteristics of mixing in the reactor are related to the design and selected speed of the agitator. 3D-modeling of the flow in the cylindrical reactor with the paddle stirrer was carried out using the potential of a supercomputer. Numerical results showed good consistency with experimental results and correlation developed by other researchers. To determine the best mode of introduction into the paddle space of the stirrer, two efficiency criteria were used: with respect to power and mixing time.
Development of stitching jigs for sleeve button placket and sleeve buttonhole placket in men’s formal shirt
Authors: Vijay Kirubakar Raj Dr. D. , Renuka Devi Dr. M. 
Published: March 2021

Abstract
The operations in assembling garment from their components, requires lot of energy and skill for the sewing operators. One of such operation is sleeve placket attachment in the construction of men’s formal shirt. Currently, the apparel technologists are working in inventing new jigs for the operations involved such construction both to lower the level of operator skill required and to increase the level of automation possible. However the development of jigs for operations like sleeve placket attachment are difficult to achieve. This work is an attempt to develop two stitching jigs for use in stitching together the components of the sleeve.
Parameteric estimation in doppler’s effect forecasts
Authors: Tamboli Dr Asif , Patil Dr Prakash , Gautam Dr Amol , Mohite Dr Amol , Kumbhar Dr R R 
Published: March 2021

Abstract
In present study, we have attempted the Umbilical artery evaluation which will further help us to recognize the high risk IUGR cases by the AEDV or the REDV. Objective of this paper is to estimate the utility of the umbilical artery including mid cerebral artery (MCA) parameters in Doppler’s effect forecasts of perinatal negative effects in medically diagnosed IUGR pregnancies. PI of MCA was studied in all our 50 cases. It is found that PI of MCA had the sensitivity of 87.5% & the low specificity of 46% in forecasting negative perinatal outcomes. In this study it is observed that in contrast to 88% in UA-PI and 66% in MCA-PI, the diagnostic precision of the MCA / UATPI ratio (90 per cent) was higher when taken separately.
Comparative studies on strength properties of flyash based geopolymer concrete incorporating ggbs and alccofine subjected to elevated temperature
Authors: Chandrakanth V , Koniki Srikanth 
Published: March 2021

Abstract
Geopolymer concrete is a novel material trying to be implemented in the construction field. Efforts being made by the researchers to unfurl the advantages and application of Geopolymer concrete in engineering fields. Geopolymer concrete does not require cement in making and utilizes industrial waste products. Hence replacing the OPC concrete by GPC, we not only reduce the pollution caused by manufacturing cement, but also use calcium, silica and alumina rich industrial waste. It is important to study the performance of GPC subjected to elevated temperature before considering it for structures like industrial buildings, complexes which are vulnerable to fire accidents. Present study investigates the properties like compressive strength, weight loss/gain, and Thermal energy absorption for GPC subjected to elevated temperature from 1000C, 2000C, 4000C, 6000C and 8000C for exposure time of 1hour and 2hours. We compare these properties of GPCs, one made using Flyash and GGBS as binders named FGGPC and the other using Flyash and Alccofine 1203 named FAGPC. From the results we found that strength of GPC increases with the rise in temperature up to 2000C and then rapidly decreases with further rise in temperature. Use of FAGPC is advantageous than using FGGPC on field vulnerable to fire.
Multiferroic Bismuth ferrite nanocomposites as a potential photovoltaic material
Authors: Niloy Naimur R. , Chowdhury M.I. , Shanto M.A.H. , Islam J. , Rhaman M.M. 
Published: March 2021

Abstract
Bismuth ferrite (BFO) is one of the few materials which is multiferroic (antiferromagnetic and ferroelectric) at 25°C. In this work, we synthesized multiferroic BFO via sol-gel method and observed its structural and optical properties. While synthesizing BFO, the annealing temperature was at 550°C. X-ray diffraction (XRD) analysis exhibited a rhombohedral crystal structure. Rietveld refinement via MAUD software has been employed to obtain the structural parameters of BFO. Williamson-Hall (W-H) plot method is used to analyze the XRD data. We obtained crystallite size of 37.61 nm through W-H plot analysis. Using the crystallographic information file, we measured the bond angle and bond length of BFO nanoparticles. BFO nanoparticles with both uniform distribution and spherical shape was observed in Field Emission Scanning Electron Microscopy (FESEM). The average particle size of 157 nm was measured from FESEM analysis. The atomic % of Bismuth (Bi), Oxygen (O) and Iron (Fe) elements in BFO was obtained from Energy dispersive spectroscopy. The optical bandgap energy (Eg) of BFO was calculated using UV-Vis-NIR, and we found the bandgap energy of 2.04 eV for BFO annealed at 550°C. This bandgap energy makes BFO a potential photovoltaic material.
Experimental study on metakaolin & nano alumina based concrete
Authors: Ashok Kunchala , Kameswara Rao B , Sarath Chandra Kumar B 
Published: March 2021

Abstract
The experimental work carries around the impact of investigation of Nano Particle like Nano Alumina (NA) and further more one of the beneficial cementitious (pozzolanic) material in cement to improve the mechanical properties of the concrete. Nano Particle and pozzolanic material is partially replaced by the weight of cementitious material into concrete. The experimental work examine was done on Nano replaced concrete were cured for 28, 56 and 90 days of water for various concrete mixes like M30, M40 and M50 to calibrate the mechanical properties of concrete like compressive strength, flexural strength and split tensile strength of concrete and also Non Destructive tests like UPV and Rebound hammer test on the hardened concrete. The workability and mechanical properties were also studied for the conventional and Nano replaced Concrete. Based on the experimental test results obtained the influence of Nano particle in concrete can be examined in both fresh and hardened state.
Refining Concrete’s micro-structure by enzymatically-induced carbonate precipitation through urease activity of bacteria
Authors: Srinivasa Reddy V , Sasikala Ch , Shrihari S 
Published: March 2021

Abstract
This paper presents the mechanism of improving the microstructure of concrete by enzymatically-induced carbonate precipitation through urease activity of bacteria Sporosarcina pasteurii. This calcium carbonate or calcite crystal precipitated during the biological activity fills the pores in the concrete imparting the concrete the dense microstructure. The presence of 105 per milliliter of mixing water yields high compressive strength due to precipitation of highest amount of calcium crystals in the concrete pores thereby plugging the micro and macro pores in the concrete refining the micro-structure of the concrete. SEM images, XRD plots and thermo-gravimetric analysis confirmed the presence of calcite mineral in the bacterial mortar specimens. The presence of spores of Sporosarcina pasteurii in the bacterial mortar specimens of 365 days old are found through phase contrast microscopic images. This confirms the sporulation ability of bacteria Sporosarcina pasteurii. Concrete specimens induced with bacteria showed considerably less water absorption capacity compared to normal specimens. This decrease in water absorption capacity of bacteria induced concretes is credited to the reduction of pores in the concrete due to calcite mineral precipitation filling the pores reducing the typical pore radius of concrete. Average pore diameter in bacteria incorporated concrete decreases drastically due to calcite mineral precipitation in the pores because of microbial metabolic activity. The total pore volume also decreased in case of bacteria incorporated concrete samples.