bluuebunny/crossref_metadata_2025 huggingface dataset:
ASSESSMENT OF THE IMPACT OF INDIVIDUAL BIOLOGICAL FEATURES OF PLANTS ON THE CONTENT OF CERTAIN CHEMICAL ELEMENTS AND RADIONUCLIDES
Authors: Larionova N. V. , Kozhakhanov Т. Ye. , Ivanova A. R.
Published: November 2024

The paper addresses quantitative values of the content of certain chemical elements and radionuclides in the aboveground part of sunflower in conditions of radioactive contamination at Semipalatinsk Test Site (STS). It was found that the content of chemical elements and radionuclides of interest in soil, in the same soil and climatic conditions, varies less significantly (variation factor on average does not exceed 20%) that the one in plants (variation factor is 20–40%). The widest range of activity concentration values in the aboveground part of sunflower is characteristic of 241Am, the radioactive element, which is alien to the plant body – the variation factor is more than 40%.
METHODOLOGICAL APPROACHES TO RESEARCH INTO TRITIUM BOUND SPECIATION IN SOILS OF RADIOACTIVELY CONTAMINATED AREAS AT SEMIPALATINSK TEST SITE
Authors: Serzhanova Z. B. , Aidarkhanova A. K. , Lyakhova О. N. , Timonova L. V. , Raimkanova A. M.
Published: November 2024

The article provides methodological approaches to research into 3Н speciation in soil. The quality and efficiency of the autoclave decomposition technique was assessed, which was used for separating bound 3Н. Soil and zeolite were used as samples for assessing the impact of the matrix structure on 3Н extraction process. In the course of the experiment, a tracer of the different activity – 100 to 100,000 Bq/l was used for assessing completeness of extraction and the impact of 3Н content. Each experiment were conducted in several replications. At each experimental stage, a blank test was conducted to assess its ‘integrity’. It was shown that the efficiency of this technique is about 27–48%. It was found that significant losses are related to an incompletely open matrix and features of the analysis carried out. It was revealed that the matrix structure and the content of 3Н do not affect the extraction efficiency of 3Н bound forms from soil. Authors suggested a number of approaches to improve the technique efficiency, such as measuring the ratio of reagents and omitting the centrifuging stage.
RING-SHAPED SEISMICITY STRUCTURES IN DIFFERENT DEPTH RANGES PRIOR TO LARGE AND GREAT EARTHQUAKES IN SUBDUCTION ZONES OF THE PACIFIC OCEAN
Authors: Kopnichev Yu. F. , Sokolova I. N.
Published: November 2024

We have been studying some seismicity characteristics at depths down to 110 km prior to large and great earthquakes (Mw=7,0–9,0) in subduction zones of the Pacific. It was shown that prior to large events at depths of 0–40 and 42–110 km, which we called conditionally as shallow and deep ones respectively, during a few decades ring-shaped structures have been forming in three depth ranges: 0–33, 34–70 and 71–110 km. The structures are characterized by threshold magnitude values: Mt1, Mt2 and Mt3 correspondingly. We analyzed differences of Mt1 − Mt2, Mt2 − Mt3 and Mt1 − Mt3 values. It was established that parameters Mt2 − Mt3 and Mt1 − Mt3 are considerably higher for large shallow earthquakes in comparison with deep ones. Besides, we found differences of mean Mt1 − Mt2 values at the west and east of the Pacific. We believe that ring-shaped structures formation is connected with dehydration of subducting plates material and deep- seated fluid migration. The obtained data allow us to forecast depths of preparing large events using parameters of ring-shaped structures.
SOME FEATURES OF SEISMIC REGIME ON THE TERRITORY OF VORONEZH CRYSTALLINE CORE AREA
Authors: Rogozhin E. A. , Semenov A. E. , Nadezhka L. I.
Published: November 2024

More than 20 years of seismological observations on the territory of the Voronezh crystal core area have shown that the territory of the region is not seismically passive. 590 seismic events of different energy classes were registered. Analysis showed that modern seismic activity has a quasi-periodic character. A graph of the frequency of earthquakes of different energy classes is constructed, which allows us to judge the seismic regime of the region.
SAFETY CULTURE IN TECHNOLOGIES FOR HANDLING NUCLEAR WASTE AND NUCLEAR FUEL
Authors: Gorin N. V. , Krayev V. S. , Smirnov V. G. , Vasilyev A. P. , Andreyuk A. N. , Burenkov S. V. , Kutsenko V. M.
Published: November 2024

The safety culture in the elimination of the nuclear legacy from the defense and civil programs of the former USSR is demonstrated by the example of three different technologies for handling nuclear waste and spent nuclear fuel. These technologies have been implemented by RFNC-VNIITF together with RFNC-VNIIEF, OJSC RI, JSC NIKIET, and the National Nuclear Center of the Republic of Kazakhstan (NCC RK). The export of nuclear fuel from the NCC RK research reactors to Russia is considered. The key aspects of eliminating access to nuclear waste at the former Semipalatinsk Test Site in the interests of the non-proliferation regime are discussed. The set of activities associated with the export of the spent fuel assemblies (SFAs) of reactors AMB-100 and AMB-200 as the nuclear legacy of the first civil nuclear power facilities to the “Mayak” PA is shown. It is noted that compliance with the national laws, regulatory documents, and safety culture has made it possible to successfully perform unique technical and organizational tasks. As a result, the Republic of Kazakhstan has met all the requirements for a non-nuclear state when staging research reactor complexes under the IAEA safeguards; the Russian Federation, the Republic of Kazakhstan, and the United States have jointly eliminated the threat to non-proliferation regime at the former Semipalatinsk Test Site, the State Atomic Energy Corporation “Rosatom” has eliminated the “sluggish accident” at one of the sites of the nuclear legacy of the civil nuclear power engineering.
PKIKPBC ON THE TRAVELPATH NEVADA – “MIRNYY” STATION (ANTARCTICA)
Authors: Nepeina K. S. , An V. A.
Published: November 2024

The Geophysical Service of the Russian Academy of Sciences (Obninsk, Moscow Region) made it possible to process seismograms of “Mirnyy” station in Antarctica. Seismograms for the period 1961–1991 were viewed, when underground nuclear explosions were conducted at the Nevada Test Site of the United States. To calculate and construct a local travel time curve and a linear trend of the PKIKPBC body wave travel time on the Nevada Test Site (NTS) – “Mirnyy” seismic station (MIR), 120 seismograms from Kirnos seismograph (SVKM) were selected for the period May 13, 1966 – October 18, 1991: 60 for each site Pahute and Yucca of the Nevada Test Site (NTS). The article presents local travel-time curves and linear trends of the PKIKPBC wave on the travelpath NTS – MIR. Increase in time travel with years as in travelpaths Nevada Test Site – Borovoye [14]. Dependency of arrival times of the PKIKPBC wave on mb magnitude was detected. The obtained data can be used for comparison of results of PKIKPBC wave study from the Nevada Test Site on other stations, for examples, at “Novolazarevskaya” Antarctic station.
ION-PLASMA SYNTHESIS, STRUCTURE AND PROPERTIES OF Hf-C ALLOYS
Authors: Tuleushev Yu. Z. , Zhakanbaev E. A. , Orakova M. S. , Kerimshe A. S. , Mamyrbayev A. K. , Sarsenbayeva K. B.
Published: November 2024

In this work, studies have been carried out on the synthesis of coatings based on hafnium and carbon, using the method of ion-plasma spraying of coatings from alternating layers of hafnium and carbon with a thickness of each layer less than 1 nm. When performing the work, we used a four-channel magnetron setup. In which two oppositely located magnetrons were used. One magnetron is charged with a hafnium target, and the other magnetron is charged with a carbon target. The rate and optimal modes of sputtering of hafnium and carbon have been determined. The dependences of the amount of atomized hafnium and carbon on the power applied to the magnetron are obtained. The average atomization power of hafnium has been determined, which corresponds to the removal of the substance with the removal of carbon at its maximum possible atomization power. The synthesis of hafnium-carbon coatings in the concentration range from 59.8 to 5.3 at.%. Carbon was carried out, and X-ray studies of carbide coatings were performed. Determined in the hafnium-carbon system formed by magnetron deposition, at concentrations from 59.8 to 26.1 at. % carbon in the coating, the cubic phase of hafnium carbide is formed, with a decrease in the lattice parameter. At a concentration of 16.2 at. % carbon, along with the cubic phase of hafnium carbide, hafnium with a hexagonal structure begins to precipitate in the coating. With a further decrease in the carbon concentration in the coating, the hexagonal phase of hafnium becomes predominant.
RESEARCH OF THE POSSIBILITY OF INSTALLING A HEAT-RESISTANT PROTECTIVE SHELL AGAINST THE EXPOSURE OF MELTS DURING IN-REACTOR EXPERIMENTS
Authors: Kozhabayev Z. B. , Irkimbekov R. A.
Published: November 2024

The article is devoted to improving the safety of experiments carried out at the IGR reactor. The results of calculations of the neutron-physical parameters of experimental devices with a heat-resistant jacket are presented. The use of the casing is intended for additional protection of the IGR reactor core from the possible impact of the melt of the materials of the experimental device. Tungsten, tantalum and carbon fiber reinforced plastic were considered as the material of the protective cover. The use of a protective casing was evaluated according to the following parameters: the effect on the relative power of the experimental device, the effect on the power distribution in the experimental device, the melting temperature and radiation heating of the casing material.
ELECTRONIC STRUCTURE, MAGNETIC PROPERTIES AND STABILITY OF HEUSLER ALLOYS Mn2Co1−x VxZ (Z = Al, Ga)
Authors: Abuova F. U. , Inerbayev T. M. , Abuova A. U. , Kaptagay G. A. , Merali N. A. , Soltanbek N.
Published: November 2024

Two sets of Heusler alloys of the type Mn2Co1−xVxZ (Z = Al, Ga) were studied by computer simulation methods using density functional theory. Changes in the absolute value and direction of the lattice ions' magnetic moments are investigated depending on the chemical composition. Topological analysis of the charge distribution on the crystal lattice atoms is carried out to explain the results obtained. It is shown that changes in the magnetic properties are determined by the system's charge ions' states. The fundamental difference between Al- and Ga-containing alloys is Ga ions' ability, in contrast to Al ions, to change their charge state as the vanadium concentration increases, which gives an additional degree of freedom for modifying the electronic structure of the studied compounds.
MODERNIZATION OF INFORMATION-CONTROL SYSTEM AT EAGLE EXPERIMENTAL TEST BENCH. AUTOMATED CONTROL SUBSYSTEM
Authors: Ilinykh S. A. , Sysaletin A. V. , Yermakov V. A. , Kudranova A. B. , Nauryzbaev R. Zh. , Islamov R. S.
Published: November 2024

The Institute of Atomic Energy (IAE) Branch of the Republican State Enterprise national Nuclear Center of the Republic of Kazakhstan has been updating automated control subsystem of the information-control system at its experimental test bench EAGLE since the beginning of 2020. As part of modernization, IAE has installed new equipment and implemented primary adjustment of moduli and extension racks by means of specialized Modbus Utility software included in the delivery. In addition, IAE has developed algorithms to receive and transmit data onto moduli, directive screen and provide information regarding the state of test-bench automatic units. This work will result in the improvement of monitoring, recording and display of experimental information related to the state of EAGLE automated control units.
DEVELOPMENT OF OPTIMIZED MODEL FOR SODIUM LOOP HEAT EXCHANGER IN ANSYS FLUENT PROGRAM
Authors: Khasenova S. M. , Akaev A. S. , Martynenko Ye. A.
Published: November 2024

The article addresses computational research on the decision of multi-criterial problem of how to optimize sodium heat exchanger. A heat exchanger under consideration is one of the elements of sodium loop (SL) being designed to provide sodium circulation in the IGR reactor experiments with fast reactor core elements.

The research covered mathematical calculation to select geometry for heat exchanger and identify required coolant flow rate. In ANSYS FLUENT software system, heat exchanger 3D model was developed using chosen geometry and stationary thermal calculation was conducted. Distribution of heat exchanger temperature field with the coolants was received in 3D calculation.

Computational research resulted in receiving best range of heat-exchanger parameters, creating 3D computational model and providing distribution of temperature field for optimized model.
ESTIMATION OF STRENGTH CHARACTERISTICS OF THE ZIRCONIUM E125 ALLOY MATERIAL IN THE ZONE OF LOCAL THERMAL EXPOSURE
Authors: Sapatayev Ye. Ye. , Kozhakhmetov Ye. A. , Dauletkhanov Ye. D.
Published: November 2024

The paper presents the results of mechanical tests to determine changes in the strength characteristics of the material of zirconium alloy E125 after local thermal exposure. Dependences of the strength characteristics of the material of the E125 alloy on the hardness are determined. The maximum and minimum values of strength in the zones of reflow and heat exposure have been determined. An assessment of the change in the geometric parameters and the hardness of the heat- affected spot from the modes of arc action and the conditions of subsequent cooling is carried out.
Đặc điểm cấu trúc rừng trồng: rừng trồng kê líp và rừng trồng không kê líp tại Vườn Quốc gia U Minh Hạ, tỉnh Cà Mau
Authors: Trần Quốc Khải , Huỳnh Kiệt Anh Tuấn , Nguyễn Tấn Truyền , Nguyễn Hoài Linh , Dương Văn Nhã , Ngô Minh Sang
Published: November 2024

Nghiên cứu được thực hiện nhằm mục đích xác định cấu rừng Tràm trồng tại Vườn Quốc gia U Minh Hạ, tỉnh Cà Mau. Số liệu được thu thập từ 65 ô đo đếm 100 m2 (10 m x 10 m) cho hai kiểu rừng Tràm trồng: rừng trồng kê líp và rừng trồng không kê líp tại Vườn quốc gia U Minh Hạ. Kết quả cho thấy đối với rừng trồng kê líp đường kính trung bình 10,4 ± 0,2 cm; chiều cao vút ngọn trung bình 10,7 ± 0,1 m với trữ lượng bình quân là 213,93 m3/ha. Đối với khu vực rừng trồng không kê líp, đường kính trung bình 8,2 ± 0,1 cm; chiều cao vút ngọn trung bình là 7,7 ± 0,1 m với tổng trữ lượng trung bình là 100,03 m3/ha. Phân bố phần trăm số cây theo cấp đường kính (N%/D1,3) của rừng trồng tại khu vực nghiên cứu có thể được mô phỏng bằng phân bố lý thuyết Weibull. Phương trình mô phỏng cho mối tương quan Hvn/D1,3 của kiểu rừng trồng kê líp là Hvn = 1/(0,0639 + 0,2727/D1,3), rừng trồng không kê líp là Hvn = 1/(0,0822 + 0,4345/D1,3).
Tuyển chọn vi khuẩn Bacillus spp. sinh enzyme β-galactosidase và xác định điều kiện thích hợp cho quá trình lên men lactose
Authors: Lê Huỳnh Băng Nguyên , Nguyễn Như Quỳnh , Nguyễn Thị Hạnh , Lưu Minh Châu , Nguyễn Ngọc Thạnh , Huỳnh Xuân Phong
Published: November 2024

Nghiên cứu được thực hiện nhằm tuyển chọn các chủng Bacillus spp. có khả năng sinh enzyme β-galactosidase và xác định nhiệt độ, pH thích hợp cho môi trường lên men lactose. Trong 21 chủng Bacillus spp. được khảo sát bằng phương pháp sử dụng X-gal, 6 chủng (B6, B7, B9, B11, B17 và B18) có khả năng sinh enzyme β-galactosidase thông qua hiển thị màu xanh đặc trưng của X-gal trên khuẩn lạc sau 72 giờ. Tuyển chọn được 4 chủng (B6, B9, B17 và B18) hiển thị màu xanh đậm nhất để tiếp tục xác định hoạt tính enzyme bằng phương pháp sử dụng cơ chất ortho-nitrophenyl-β-galactoside (oNPG). Kết quả cho thấy chủng B18 thể hiện hoạt tính enzyme cao nhất nên được định danh bằng kỹ thuật sinh học phân tử và được xác định là Bacillus licheniformis. Điều kiện lên men môi trường chứa lactose của chủng B. licheniformis B18 cũng được xác định ở nhiệt độ 30℃ và pH 7,0 cho hoạt tính enzyme đạt giá trị cao nhất là 533,08 U/L. Chủng B. licheniformis B18 được định hướng tiếp tục nghiên cứu tối ưu các nhân tố khác nhằm sản xuất enzyme β-galactosidase.
Enhancing Stock Price Forecasting with LSTM and GA: A Study on the Iraqi Market
Authors: Mohammed Kareem Ghadhban
Published: November 2024

This study investigates the application of the Long Short-Term Memory (LSTM) model, optimized through a Genetic Algorithm (GA), to predict stock prices of 20 selected companies listed on the Iraqi Stock Exchange. Using daily stock data spanning from 2020 to 2023—a period marked by significant economic and geopolitical turbulence—we assess the performance of the model in an emerging market characterized by low liquidity, high volatility, and sensitivity to political instability. The GA is employed to optimize key LSTM hyperparameters, such as optimizer type, loss function, activation function, dropout rate, and sequence size, in order to improve prediction accuracy. Results show that the LSTM model performs well for most stocks, with low error metrics and high R² values for companies with less volatile stock prices, such as UQTN, HSAD, and MTCI. However, for more volatile stocks like ZAWK and BINV, prediction errors are significantly higher, indicating the need for more complex models or further refinements in parameter tuning. Overall, the LSTM-GA approach demonstrates strong potential for predictive modeling in emerging markets, offering valuable insights for investors and policymakers navigating the Iraqi stock market.
THE EFFECTS OF ESG PRACTICES ON CORPORATE FINANCIAL SUSTAINABILITY: EVIDENCE FROM DEVELOPED AND DEVELOPING COUNTRIES
Authors: Orazalin N. , Kozhakhmetova A. , Abdrashova K.
Published: November 2024

The purpose of this research – to explore the effects of ESG (environmental, social, and governance) practices on firm financial sustainability in developed and developing economies.

Methodology – Panel regression analysis is used to test the effects of ESG practices on financial sustainability by controlling year, sector, and country fixed effects. Financial performance is estimated based on Tobin’s Q, while ESG practices are measured using ESG scores obtained from Eikon’s ASSET4. The final sample consists of 34,953 fi rm-observations from 49 countries from 2002 to 2022.

Originality/value of the research – This work offers important implications for various stakeholders by providing new insights into the relationship between ESG practices and financial sustainability of public fi rms operating in different countries and highlighting the role of country-level economic conditions in promoting corporate ESG initiatives and sustainability.

Findings – The study shows that the individual and composite ESG practices can substantially improve financial performance. The results also show that the positive impacts of environmental and social initiatives and the overall ESG practices on financial well-being are more pronounced for fi rms from developed economies. Further analysis verifies that improved ESG practices may increase financial stability, measured as the Altman’s score.
The Process of Teaching and Learning from the Views of Prospective Mathematics Teachers: The Case of Algebraic Inequalities
Authors: Topbaş Tat Emel , Gümüş Hafize
Published: November 2024

This study explores the views of prospective mathematics teachers on the process of teaching and learning about algebraic inequalities. Phenomenology, one of the qualitative research methods, was used in the study. The participants of the study consisted of 6 prospective middle school mathematics teachers studying in the last year of the Elementary Mathematics Teacher Education Program of a university in the Central Anatolia Region of Türkiye in the spring semester of the 2021-2022 academic year. Data were collected through semi-structured interviews. The obtained data were analyzed using content analysis, one of the qualitative analysis methods. As a result of the analysis of the interviews with the prospective middle school mathematics teachers, three main themes were obtained. Teaching inequalities, the difficulties that students may experience in inequalities, and the methods that can be used to overcome difficulties were the main categories that emerged. Direct quotations from the prospective teachers’ views were also included in the presentation of the findings. As a result of the study, it is recommended that more practice should be included in teacher education programs to improve prospective mathematics teachers' knowledge and experience of meaningful learning and overcoming difficulties.
INFLUENCE OF ELECTRICAL AND MECHANICAL LOADS ON THE RЕSОURСЕ OF SYNCHRONOUS GENERATORS AS PART OF ELECTRIC DRIVES OF MINING DUMP TRUCKS
Authors:   Saint-Petersburg Mining University, Sychev Yu.A. , Dyachenok G.V. ,   Saint-Petersburg Mining University
Published: November 2024

The paper investigates the causes of vibrations that affect an increase in the likelihood of failure in a synchronous traction generator (a functional unit of a traction electric drive). During the tests, it turned out that the natural oscillation frequency of the diesel generator unit is significantly higher than the operating speeds of the unit, which eliminates the appearance of resonant phenomena. Based on the results obtained, it can be seen that the vibration increases with an increase in the speed of rotation, whereas it practically does not depend on an increase in the electrical load.
ISОLАТЕD MODE POWER MANAGEMENT SТRАТЕGY FOR AC-DC HYBRID MICROGRID
Authors:   Lipetsk State Technical University, Kudryavtsev A.E. , Shрigапоviсh A.N. ,   Lipetsk State Technical University
Published: November 2024

То solve the problem of coordinated management, control and quality of electricity in АС and DC systems of an interconnected micro grid, this article proposes an АС and DC system ω — Vdc2 the voltage drop management strategy is applied to an energy router, and this approach is derived from the conventional one ω — Р control circuit for voltage drop in the АС microgrid and Vdc — Р a control circuit for voltage drop in а DC microgrid. In combination with the quadratic value of the DC voltage and the frequency characteristics of the АС current to control the flow direction and the amount of power, it realizes the bidirectional stable energy transmission of the hybrid АС and DC microgrid and ensures the energy balance of the networks.
THE ЕFFЕСТS OF THE SМАRТ GRID SYSTEM ON THE NATIONAL GRIDS
Authors:   Lipetsk State Technical University, Kudryavtsev A.E. , Zatsepina V.I. ,   Lipetsk State Technical University
Published: November 2024

The infrastructure of national grids in many countries is very old and includes classical technologies for the production, transmission and distribution of electricity. in addition, the controllability and controllability of these systems are also not satisfactory. On the other hand, smart grid technologies include sophisticated tools for monitoring and managing the energy system in both directions: from power plants to end users and vice versa. In addition, the intelligent grid system provides monitoring and management of electrical energy fгоm production to the end user, as well as provides intelligent measurements, connectiоn of vehicles to the grid, as well as integration of renewable energy sources into the network. In addition, smart grid technology also ensures efficient use of energy sources with minimal losses and minimal illegal use. This document highlights the impact of smart grid technologies on national grids and offers some suggestions for converting a classical power grid into an intelligent power grid.
АNАLYSIS OF THE FUNCTIONING OF МULТIDIМЕNSIОNАL TECHNOLOGICAL РRОСЕSSЕS USING ANALYTICAL AND STATISTICAL МОDЕLS
Authors:   North-Caucasus Mining and Metallurgical Institute, Khastsaev B.D. , Khmara V.V. ,   North-Caucasus Mining and Metallurgical Institute, Hashimova Z.A. ,   North-Caucasus Mining and Metallurgical Institute, Gurieva E.V. ,   North-Caucasus Mining and Metallurgical Institute
Published: November 2024

Quality management of technological processes (ТР) has led to the creation of а large number of methods that are designed to detect “disorder” of the technical process system. The “disorder” of the ТР is identified based on the results of sample control, which is carried out according to quantitative and qualitative criteria. Quantitative control is aimed at calculating the actual values of the controlled parameter, which are used to calculate statistical characteristics about the state of the technological process. Quality control is aimed at determining the compliance of a parameter with established requirements. The decision on the state of the ТР is made based on the number of detected defects. А large number of works are devoted to the detection of “detuning” in random processes. In particular, the problem of quickly detecting “out-of-order” technological processes was solved. Previously, Russian scientists studied the detection of “out-of-tuning” of Gaussian processes with discrete time. The novelty of the problem formulation under consideration lies in the fact that the observed process is multidimensional; during the observation time, “detuning” can occur several times, where some parameters are unknown. This type of control is considered simpler and relatively cheaper since it is possible to use the simplest control methods. The use of this type of control requires less sample size and provides controllers with more useful information.
The Politics of Valuation
Authors: Lee Francis , Jülich Solveig , Dussauge Isa
Published: November 2024

This article has two aims: First, the article proposes to sensitize our analytical minds to what we dub “value disjunctures”—clashes, in practice, between different valuations. The article proposes a strategy for analyzing value disjunctures—paying attention to how different value worlds de-cohere. We ask: What happens if we highlight the periods and situations when versions of the world are pulled apart? Second, the article aims to highlight how today’s bioethics can neither be read as a tale of democratization of ethics, nor as a tale solely driven by ethical disasters. What we offer is a story of how the bioethical yardsticks of today were established as dominant in fetal research. The sensitizing concepts we propose shine a light on how bioethicalization is a historical process that intertwines what is good, with what objects are seen as important, as well as how these objects are understood. Bioethicalization is a struggle about valuations, which yardsticks for the good that become salient, but also a struggle about which objects should be valued, as well as the nature of these valued objects. This article highlights how all matters of value—the ethical, the epistemic, and the economic—are intertwined with changing ontologies, thus highlighting how ontologies and values are enacted together.
Access to Credit and Child Nutritional Outcomes in Ghana
Authors: Issahaku Haruna , Abu Benjamin Musah
Published: November 2024

Globally, and especially in developing economies, the quest to understand the impact of agricultural and food policies on nutritional outcomes has become a key policy issue. Typically, most agricultural policies highlight the critical role of credit in easing liquidity constraints of farm households as a means of spurring productivity under the belief that increased productivity would set the tone for boosting nutritional outcomes. This study estimates the effect of credit on anthropometric measures of children in the Savannah Accelerated Development Authority (SADA) zone of Ghana. The study argues that children’s anthropometric measures share some relationship and thus must be modeled as a system. Therefore, we employ the three-stage system of simultaneous equations to deal with the structural system and endogeneity of credit. In addition, we test the pathways of credit to nutrition using data from the USAID Ghana Feed the Future (FTF) baseline survey. The results show that credit has a strong positive effect on the nutritional outcomes of children. Further, yield, market participation, income from crop sales, and nonfarm business ownership are the essential pathways credit influences nutrition. Therefore, the government should establish a full-blown farm credit policy through relevant institutions to provide credit to farm households.
Knowledge, Attitude, and Practice of the Lebanese University Medical Students and Junior Doctors on Basic Life Support Practices
Authors: El Assaad Hadi , Osman Bahaa , Honeine Mohamad Omar , Abi-Hanna Pierre , Chahine Mirna N.
Published: November 2024

Background: Basic life support (BLS) is the recognition of sudden cardiac arrest and activation of emergency response system, followed by cardiopulmonary resuscitation (CPR), and rapid defibrillation.
Aim: Our study aimed to determine the level of awareness of the Lebanese University medical students and trainees on BLS, by assessing the association between knowledge, attitude, and practice on BLS, and between the demographic variables and KAP scores.
Methods: This was a cross-sectional study including 330 medical students enrolled at Lebanese University, from year four of general medicine till year five of residency. An online survey was used to collect data about demographic characteristics, knowledge (K), attitudes (A), and practice (P) about BLS. Data was analyzed using SPSS version 25.
Results: Participants were 52.7% females, 47.3% males, and their mean age was 24 ± 2 years. Of the 330 participants, 38.8% received formal training regarding BLS. Medical students had low knowledge (90%), moderate to good attitudes (71.5%), and low practice (93%) regarding BLS. Multiple linear regression showed that knowledge was positively associated with age (p = 0.001), knowledge and information regarding BLS (p = 0.016), and any formal training/workshop regarding BLS (p = 0.021). Attitude was positively associated with academic year (p = 0.002) and knowledge (p = 0.003). Practice was positively associated with age (p < 0.001) and knowledge (p < 0.001).
Conclusion: Most Lebanese University medical students showed low knowledge, moderate to good attitudes, and low practice regarding BLS. We recommend that CPR/BLS should be a core competency across all health care professional programs.
النظام الإلكتروني لتسليم الرسائل الجامعية في جامعة قطر: دراسة وتقييم ومقترحات للتطوير
Authors: بابصيل آمنة حسين
Published: November 2024

الملخص

هدف الدراسة: سعى هذا البحث لدراسة مشاكل النظام الإلكتروني TADESS المصمم في جامعة قطر، لصالح طلبة الدراسات العليا؛ ليتم من خلاله تسليم الرسائل والأطروحات الجامعية، ومتابعة حالتها، ومدى سير إجراءات الموافقات فيها منذ اقتراح موضوع الرسالة إلى تسليمها مصححة بعد المناقشة. أهمية الدراسة: توفير خدمة للطلبة والأكاديميين والإداريين لتيسير متابعة إجراءات تسجيل الرسائل الجامعية إلى أن تصل إلى برِّ الأمان بمناقشة أصحابها والحصول على الدرجات العلمية المطلوبة، بناء قاعدة بيانات لبحوث طلبة الدراسات العليا، وتوثيق أعمالهم بشكل رسمي في علاقة محددة بين الباحث والمشرف الأكاديمي، مما يساعد على تحقيق جودة الإدارة. المنهج: اعتمدت الدراسة على المناهج الوصفية والتحليلية النوعية والإجرائية. تكونت العينة المدروسة من طلبة الدراسات العليا في السنة الأخيرة والمتوقع تخرجهم، وكذلك التقنيين مصممي النظام، والإداريين الذين يرشدون الطلبة إلى كيفية استخدامه ومتابعة مراحل سير رسائلهم، بالإضافة إلى الأكاديميين الذين لديهم صلاحية استخدمه. النتائج والتوصيات: استنادًا إلى نتائج المقابلات، توصلت الدراسة إلى تشخيص المشكلة الرئيسة التي تواجه النظام وجوهرها المشاكل التقنية، وأبرزت حاجتها لإجراء عمليات إصلاح للبرمجة من قبل الفريق التقني في المقام الأول. وأكدت أن ذلك سيعود بالفائدة على جميع المستخدمين، ويسهم في توثيق العمل وأرشفته بطريقة فاعلة. وبناءً على ذلك، ستتم عملية التكوين من خلال الورشات لكافة المتعاملين مع نظام TADESS لتيسير استخدامه. كما توصلت الدراسة إلى جملة من العوامل التي تعين على وضع الحلول المناسبة؛ من خلال إحصاء 13 مشكلة تقنية في النظام خلال سنة واحدة، واقترحت الحلول لكل منها، بالإضافة إلى الكشف عن أسباب عزوف بعض المستخدمين للنظام، والتي كانت عاملًا في عدم وصول الرسائل إلى المراحل المتقدمة عبره، مع وضع خطة مقترحة لإعادة تشغيله.
Unresolved Post-COVID Symptomatology: An Experience from a Tertiary Care Hospital in Sri Lanka
Authors: RS Wanigasuriya , KR De Silva , R Dissanayake , J Indrakumar , AT Matthias
Published: November 2024

Background Many patients continue to have symptoms for a prolonged period following COVID-19. In some cases, these symptoms manifest immediately after the acute phase of infection, while in others, they fall within the definition of post-COVID syndrome, persisting beyond 12 weeks. As a result, patients are in a state of anxiety as no established mechanism is available to identify and guide such patients for follow-up. Understanding the persistence of symptoms beyond the acute phase is crucial for providing appropriate care and support to these individuals.

Methods This descriptive cohort study was conducted at the Colombo South Teaching Hospital, Sri Lanka, among patients who had laboratory-confirmed COVID-19 and were discharged from the hospital but experienced persistent symptoms after four weeks. Data collection was carried out through telephone interviews conducted by the investigators.

Results A total of 500 patients were included in the study with a mean age of 48 years, of which 346 (69.2%) had not required supplemental oxygen during the acute infection, while 142 patients (28.4%) required supplemental oxygen, 10 (2%) required ICU care and 2 (0.4%) required intubation. Of the symptoms reported by these patients one month after the acute infection, the most frequently reported symptom was fatigue (63.6%), followed by breathlessness (32.6%) and musculoskeletal pain/discomfort (28.2%).

Conclusions In conclusion, our study sheds light on the persistence of symptoms among discharged COVID-19 patients in a tertiary care hospital in Sri Lanka. We found that many individuals continue to experience symptoms beyond the acute phase of infection. This highlights the urgent need for a systematic approach to identify and provide appropriate care for these patients, as they face uncertainty and anxiety without established mechanisms for follow-up.
Physico-chemical Characteristics of Soils of Phansidewa Village of Darjeeling in Perspective of Seasonal Variation, Statistical Distribution and Correlation Matrix
Authors: Sarkar Lovely
Published: November 2024

Analysis of soils based on different parameters like soil pH, electrical conductivity (EC), organic carbon (OC), bulk density (BD), clay amount, water holding capacity (WHC), organic carbon (OC), available nitrogen (N), phosphorus (P), potassium (K), Sulphur (S), sodium (Na), calcium (Ca) and magnesium (Mg) was conducted at village Phansidewa of Darjeeling District of West Bengal to determine the physico-chemical parameters by standard methods. The samples were collected from three different sampling stations at three different seasons; pre-monsoon, monsoon, and post-monsoon to be acquainted with seasonal distribution of the soil parameters. All the soil samples were collected at a depth of 0–30 cm and analyzed for the physico-chemical investigation. The values of soil parameters were seeming to be different in the three seasons and also different for three different places. The summary of descriptive statistics and Pearson’s correlation coefficient matrix for the studied soil parameters were also analyzed. The information gathered from the analysis would be helpful to the local agrarians to know about the amount of fertilizers to be added in the soil to make it more productive seasonwise.
Effects of DEM on Topographic Wetness Index Analyzing at Painganga Wildlife Sanctuary
Authors: Daspute A.B. , Chavan A.J.
Published: November 2024

Topographic Wetness Index (TWI) Calculated from digital elevation model (DEM) are datasets plays an important role in Calculation of TWI. DEMs are produced utilizing GPS, satellite images or aerial image, slope, elevation, drainage pattern, stream order, flow of accumulation, flow of direction etc. DEM is as good as the actual ground sampling algorithm potential of where water is likely to accumulate and result showed that waterway obtained from DEM with high spatial resolution so according to results it is suggested that the same model for increasing spatial resolution of DEM in the studies must be used.
Building Use in Heritage Precinct: Case of Pol in Ahmedabad Walled City
Authors: Singh Pratima , Sharma Utpal
Published: November 2024

Tangible heritage has its marked presence in hundreds of urban areas in India. Most heritage structures are non-engineered and do not conform to recommendatory IS code based design and NBC guidelines.An important aspect of the Heritage in majority of these urban areas is about the use of the heritage buildings in which people reside/work/visit. Such heritage buildings are frequented by not only people who live there, but also by those who work and live in other parts of the city including those who visit the buildings for various purposes ranging from conducting business to tourism, purchasing, visiting relatives and acquaintances, visiting religious places, participating in festivals, processions and rallies as well in celebrations, for gastronomic purpose or simply passing-by as part of usual through-o-fare across the city’s roads. It is imperative to look at the uses to which such buildings are put to due to the fact that many of them are listed as in the case of Ahmedabad walled city. Ahmedabad walled city having microneighbourhoods (Pols) comprising of traditional wooden framed buildings that were built over a hundred years ago achieved the remarkable feat with its inscription as a UNESCO World Heritage site in July 2017. To determine the building use in Pols, one of the 57 precinct Pols covering 150 buildings was surveyed in the walled city. The study revealed that almost a quarter of the total surveyed buildings have use that can lead to the buildings in the case study Pol becoming vulnerable.
COMPLETE REMISSION OF VARICOSE VEINS THROUGH INTEGRATED THERAPY W.S.R. TO JALAUKA AVACHARANA: A UNIQUE CASE REPORT
Authors: Balkrishna Acharya , Soni Dr. Kanak , Upreti Jaya , Soni Dr. Purva , Arya Vedpriya , Chauhan Muskan
Published: November 2024

Background This study aims to evaluate the clinical outcomes and safety profile of leech therapy as a potential alternative or adjunctive treatment for varicose veins. Specifically, it examines the efficacy of leech therapy in managing varicose vein symptoms. Methodology A prospective case study was conducted with a single patient receiving treatment at the Ayurvedic Panchakarma department. The effects of leech therapy were assessed based on the patient's self-reported evaluation of varicose vein treatment over a 5-week period, during this, six sessions of Jalauka avacharana (Medicinal leech therapy) were administered to the patient. Results Following the six sessions of leech therapy, the patient experienced gradual alleviation of symptoms, including reduced pain and burning sensations. Moreover, significant improvements were noted in reducing swelling, lumping, skin discoloration, tortuosity, and itching associated with varicose veins. These findings suggest the potential effectiveness of leech therapy in managing varicose vein symptoms. Conclusions Leech therapy shows promise as a viable option for managing varicose veins, offering noticeable improvements in symptom relief and overall vascular health. Integrated therapy incorporating Ayurveda Panchakarma, naturopathy, and yogasanas may provide comprehensive support for individuals with varicose veins. Larger-scale studies are warranted to validate these preliminary outcomes and explore the long-term efficacy of integrated therapeutic approaches in varicose vein management.
Term Limitation of Indonesian Parliamentarians Seen from Constitutionalism
Authors: Mangesti Yovita Arie , Ahmad Ahmad , Muhtar Mohamad Hidayat , Ginting Grenaldo , Sacipto Rian
Published: November 2024

This article intends to use a constitutionalist lens to examine why term limits for Indonesia's People's Representative Council and Regional Representative Council are necessary. The article employs the statutory approach, the conceptual approach, and the comparative approach to writing about normative law.   The article makes use of deductive and inductive reasoning strategies grounded in prescriptive analysis. Due to the inability to locate a clause or provision that regulates limitedly regarding the limitation of the term of office of members of the People's Representative Council and Regional Representative Council of the Republic of Indonesia, from a constitutionalist's perspective, the paper concludes that such a limitation is urgently necessary.  Since constitutionalism necessitates checks and balances, it follows that this goes against the Republic of Indonesia's constitution. As a result, the article concludes that three (3) factors emphasize the necessity of term limits for members of the Indonesian Parliament as a means of strengthening the principle of constitutionalism: (1) the existence of a legal vacuum, (2) the poor quality of Indonesian democracy, and (3) the importance of leadership regeneration.
A deliberação no Supremo Tribunal Federal
Authors: Falsarella Christiane Mina
Published: November 2024

O presente trabalho se dedica ao exame da prática deliberativa do Supremo Tribunal Federal, com o objetivo de oferecer propostas para o seu aperfeiçoamento.  A discussão mostra-se especialmente relevante no atual contexto brasileiro, em que se observa um tribunal cada vez mais atuante, bem como um movimento de valorização dos seus precedentes, ao mesmo tempo em que se constata a existência de diversos aspectos de sua deliberação que estão a merecer reparos. Observa-se, sobretudo, um déficit de colegialidade. Uma deliberação qualificada, além de conferir maior legitimidade à sua atuação no controle de constitucionalidade, contribuiria para o efetivo fortalecimento de sua jurisprudência, na medida em que permitiria a identificação da posição institucional da Corte. Diante desse quadro, é analisada a prática deliberativa do Supremo Tribunal Federal, seguida da apresentação de propostas de aperfeiçoamento, considerando experiências exitosas de Cortes Constitucionais estrangeiras.
El impacto de la doctrina del control de convencionalidad en el sistema difuso de control de constitucionalidad en México
Authors: Acuña Juan Manuel
Published: November 2024

En este artículo se analiza de forma crítica el proceso de transformación del sistema mexicano de control jurisdiccional de constitucionalidad y convencionalidad y su adaptación a los estándares del Sistema Interamericano de control difuso de convencionalidad, luego de la internalización de la doctrina del control de convencionalidad de la Corte Interamericana de Derechos Humanos. A partir de un análisis conceptual del término difuso, se identifica su sentido correcto y las formas de control exigidas a los jueces de un sistema difuso, para de ese modo evaluar con precisión el alcance de los cambios en el sistema mexicano de control constitucional. Se postula que los cambios no solo implicaron extender el deber de control a los jueces locales antes excluidos de la actividad de control, sino también la necesidad de adecuar los procesos constitucionales del ámbito federal, específicamente el juicio de amparo, para adaptarlo a las exigencias de la doctrina del control de convencionalidad mediante la ampliación a formas de control incidental respecto a nuevos objetos controlables.
Nuevos derechos en acción: reconocimiento del matrimonio igualitario en Ecuador y Chile bajo la influencia de la Corte Interamericana de Derechos Humanos
Authors: Netto Luísa Pinto e , Rechnitzer van der Wielen Anna
Published: November 2024

En este artículo analizamos el proceso de reconocimiento de nuevos derechos fundamentales. Asumimos que el sistema de derechos fundamentales debe evolucionar para ofrecer protección a la dignidad humana. Esta evolución puede ocurrir a través de la interpretación legal, que conduce al descubrimiento y avance de derechos implícitos, especialmente mediante adjudicación judicial. También se pueden agregar nuevos derechos al sistema mediante enmiendas constitucionales y mediante la recepción de normas de derecho internacional; existe una influencia mutua entre los ordenamientos jurídicos nacionales e internacionales. Para evitar una proliferación artificial de los derechos, elaboramos criterios para probar nuevos derechos. Este argumento se explora analizando el reconocimiento del derecho al matrimonio igualitario en Ecuador y Chile bajo la influencia de la Corte Interamericana de Derechos Humanos (Corte IDH). Concluimos afirmando la fundamentalidad del derecho al matrimonio igualitario y la corrección de su reconocimiento.
Minería Aurífera Legal Sostenible en el Municipio de Segovia, en el Departamento de Antioquia, desde la Geografía Jurídica
Authors: Álvarez-Ochoa Karin Y.
Published: November 2024

El propósito con este artículo es analizar cómo la minería aurífera legal en el municipio de Segovia, en el departamento de Antioquia, contribuye con la explotación sostenible, conforme con los aportes de la geografía jurídica. Para esto, se desarrolló una investigación cualitativa y documental, basada en la técnica de revisión e interpretación de artículos de investigación, informes sectoriales, la normatividad vigente sobre esta temática y notas de medios de comunicación; la cual se apoyó en el análisis de los contenidos de 37 documentos con una temporalidad entre 2014 y 2023. Se concluye sobre la necesidad de hacer una mayor inversión en educación, en la inclusión de las comunidades locales en la toma de decisiones y en fomentar un compromiso por el mejoramiento y el monitoreo continuo de estas prácticas mineras, teniendo en cuenta que desde la geografía jurídica, se hacen aportes a la minería legal, con respecto a la identidad territorial, el espacio geográfico y la legislación colombiana consagrada para la formalización minera en el municipio de Segovia, Antioquia.
XIX Semana del Derecho y la Criminalística Geopolítica y Biocidio
Authors: Facultad de Derecho y Ciencias Forenses
Published: November 2024

Este estudio analiza las consecuencias del trabajo a distancia en la empresa de seguridad Bastión en 2024, una herramienta que se hizo popular con la pandemia y que, aunque brinda flexibilidad, también supone riesgos considerables para la salud física y mental de los trabajadores. La investigación detecta problemas habituales, tales como el aislamiento social, el estrés y el desafío de distinguir los aspectos personal y laboral, sumado a la inadecuación ergonómica de los lugares de trabajo en el hogar. 
Mediante un método cuantitativo, se realizaron encuestas a todos los trabajadores para valorar su bienestar, rendimiento y satisfacción en el trabajo. Los hallazgos indican que a pesar de que el trabajo a distancia ofrece beneficios, también presenta retos significativos. Por ejemplo, los trabajadores jóvenes luchan en la administración de tareas debido a la ausencia de experiencia y apoyo, mientras que los adultos mayores suelen enfrentarse a problemas con la tecnología. Adicionalmente, las variaciones sociodemográficas, tales como el sexo y la condición civil, impactan en la adaptación al trabajo a distancia y en los grados de estrés y ansiedad. Se nota que los empleados masculinos, que en su mayoría desempeñan roles de liderazgo, reportan una mayor carga laboral y responsabilidad, lo que eleva su grado de fatiga.
 El estudio también muestra que numerosos empleados no poseen herramientas ergonómicas apropiadas, lo que incrementa la probabilidad de sufrir problemas físicos, tales como dolores musculares y cansancio. La ausencia de interacción social y las barreras entre el trabajo y la vida privada incrementan la ansiedad y la fatiga emocional, impactando el desempeño de los trabajadores. Respecto a las condiciones de trabajo, la falta de respaldo organizacional y la incertidumbre en los roles intensifican los problemas psicosociales, mermando la satisfacción y el bienestar general de los empleados.