bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implementing blended learning to enhance the teaching of 3-dimensional trigonometry
Authors: Baidoo Joseph , Luneta Kakoma 
Published: April 2024

This study investigates the impact of blended learning on the academic performance of grade 12 mathematics students with a focus on 3D trigonometry in comparison to traditional teaching methods. This research aims to understand the impact of technology on student outcomes influenced by the widespread use of technology in education. The study used an explanatory sequential mixed-method design to collect quantitative data from 381 grade 12 scripts and to obtain qualitative insights through interviews with 30 students and three mathematics teachers. This allowed for a more in-depth investigation of the effects of blended learning on student performance. According to statistical analysis, the results show a notable performance discrepancy with participants in blended learning outperforming their traditional teaching counterparts by an impressive mean difference of 19.2%. These findings align with prior research emphasizing advantages such as heightened teacher availability, flexible learning schedules and improved problem-solving skills associated with blended learning. The study underscores the crucial role of technology integration in education, particularly in enhancing conceptual understanding and addressing errors in complex topics like 3D trigonometry. It highlights the effectiveness of blended learning in elevating academic achievement in mathematics and recommends its integration into conventional teaching methods. Additionally, the study recognizes the value of digital equity and promotes more access to technology in schools as a means of reducing the digital gap and improving student performance.
Diagnostics of the medical lexis mastering by Arabic-speaking medical students using mnemonics within the Russian as a foreign language classes
Authors: Leonteva L. N. 
Published: April 2024

Introduction. The article is devoted to the issue of the medical lexis mastering by Arabic-speaking medical students using mnemonics in the framework of Russian as a foreign language classes. The main demand in Arab countries is the high level of education of graduates of medical faculties.Purpose setting. The author of the article aims to determine the level of mastering and training of these medical students in professional lexis during an experiment with experimental and control groups of Arab students.Methodology and methods of the study. The methodological basis of the study was the application of the author’s mnemonics methodology in the experimental group and training without mnemonics of the control group of Arab students. During the formative experiment, the level of the medical lexis mastering by Arab medical students was determined.Results. The methodology of mnemonics was introduced by the author in classes with foreign students from Arab countries of the 2-3-4 courses of the Medical Faculty of Ulyanovsk State University, studying in the specialty «Medicine». Studies conducted with experimental and control groups of students, after applying the author’s methodology, showed: in the experimental group, the average level of mastering was 91 %, and in the control group – 55 %, which indicates the effectiveness of the method used.Conclusions. The practical significance of the work lies in the fact that the methodology of mnemonics significantly increases the mastering of the material, and also has a positive effect on the learning of medical students.
The phenomenon of autodidactism as a subject of psychological research
Authors: Menshikov P. V. 
Published: April 2024

Introduction. The article is devoted to the study of the psychological features of the phenomenon of self-learning based on the self-study of foreign languages.Purpose setting. The aim of the study was to clarify the issue of psychological aspects of self-learning of foreign languages in the context of autodidactic communication.Methodology and methods of the study. The methodological basis of the work was the domestic approach, which considers self-learning activities as a full-fledged specific activity, involving the development of subjectivity and semantic attitudes of its participants. Variants of correlation and partial coupling of the processes of didactic and autodidactic communication are considered. The empirical basis of the study was the survey method. Data on motivational and operational aspects of autodidactic communication were obtained from a sample of respondents who were self-taught in a foreign language. The study touched upon the external, socially-oriented aspects of autodidactic communication, the goals, motives and meanings of self-learning reflected by autodidacts, as well as their preferred self-learning strategies.Results. The study states the communicative selectivity and self-sufficiency of autodidacts, the internal inconsistency of their motives that encourage self-learning, which is associated with the difficulties of becoming subjectivity in the conditions of autodidactic communication. It can be stated that the autodidacts studied by us act more as «teachers for themselves» than as «subjects of autodidactic communication». The external, socio-psychological aspect of autodidactic communication, as the results of the study show, is not leading in making a subjective decision to start self-study. Its influence is mediated by a system of personal meanings and individual preferences of autodidacts. Conclusion. The self-learning strategies preferred by autodidacts are mainly based on communication with texts and other media, while the interpersonal aspect of learning is significantly reduced and is found only in an indirect, «filmed form» as an extension of the possibilities of upcoming, probable communication in the language being studied. Further research on this problem will contribute to strengthening the psychological resources of autodidactic communication, their more competent use in the process of self-study. The psychological patterns and conditions of autodidactic communication studied on the material of self-study of foreign languages can be applied to a wider range of academic subjects in the future.
Improving the efficiency of human capital of the agricultural sector in the cross-border territory: development, challenges and prospects
Authors: Kuznetsova I. G. , Khismatulin R. R. 
Published: April 2024

Introduction. The concept of increasing the efficiency of human capital in the agricultural sector in the cross-border area represents a strategic approach to optimizing the management of resources, knowledge and labor potential in agriculture at the borders of different countries. This concept includes many factors such as international cooperation, exchange of experience, cross-border innovation and sustainable development.Purpose setting. In this regard, the article is devoted to the analysis of factors affecting the development of human capital in the agricultural sector in cross-border territories, as well as to the identification of challenges and prospects facing this industry.Methodology and methods of the study. The object of the research is the organizational and economic relations that arise in the process of formation and development of human capital in the agricultural sector in cross-border territories. The subject of the research is the conditions, factors, principles and mechanisms that arise in the process of human capital formation. The object of observation was agrarian economic entities and their employees, state agricultural management bodies, educational institutions of agrarian profile, various representatives of the rural population, including rural youth. Depending on the tasks to be solved, the following research methods were used: monographic, abstract-logical, bibliographic, etc.Results. The article clarifies the definition of «increasing the efficiency of human capital», the authors present the features of cross-border territories and their impact on the agricultural sphere. The results of the study are of practical and scientific value for the development of human capital in agricultural sector.Conclusion. Cross-border territories have a unique potential to improve the efficiency of human capital, as they provide opportunities to work with diverse cultures, languages, traditions and climatic conditions. It provides greater access to resources and expertise, which contributes to the development of more flexible and innovative approaches to human capital management. Current trends and innovations include the use of modern technologies in agriculture, such as process automation, the use of drones to monitor fields, the use of genetically modified organisms to improve crop yields and disease resistance, and the development of agritourism and sustainable rural development. In order for agriculture to develop successfully in line with current trends, it is necessary for agricultural workers to acquire new skills and competencies. Therefore, it is important to develop vocational education and training systems with a focus on border areas, so that specialists are ready to work in conditions typical of border areas and can effectively solve modern problems in agriculture.
Physical and Mechanical Analysis of Fiberboard Made Of MDF Residues and Phase Change Materials
Authors: Rodríguez Gustavo E. , Bustos Ávila Cecilia , Cloutier Alain 
Published: April 2024

The wood-based panel industry is experiencing an excessive accumulation of solid residues from the production of medium-density fiberboard (MDF) panels and moldings. It is possible to create new MDF products with acceptable physical and mechanical properties by revaluing MDF residues. Additionally, those products’ thermal properties can be improved by incorporating phase change materials (PCMs). This study aims to develop a wood-based fiberboard made of MDF residues, capable of storing thermal energy. Two types of PCMs, two PCM ratios, and two types of adhesives were used to produce eight different types of panels. The vertical density profile, thickness swelling, water absorption, internal bond (IB), and static bending properties – modulus of elasticity (MOE) and modulus of rupture (MOR) – were determined for each panel type. The specific heat of the panels was also determined. The results show the panels’ densities were greater than 700 kg/m3. Thickness swelling in water improved by 23% compared to the reference value of the control panel PCMs after PCM incorporation. The highest IB value was 1.30 MPa, which is almost three times the minimum required by regulation standards. The incorporation of PCMs reduced the panels’ bending properties compared to the properties of the control panels. Even though the values obtained are sufficient to comply with the minimum values set out in ANSI standard A208.2 with a MOE value of 2072.4 MPa and the values obtained are sufficient to comply with the minimum standards with a MOE value of 2072.4 MPa and a MOR value of 16.4 MPa. When microencapsulated PCM is used, the specific heat of the panels is increased by more than 100% over that of the control panels. This study develops a feasible alternative for using MDF residues: to create fiberboard that is capable of storing thermal energy and has adequate physical and mechanical properties.
Severe Hemodynamic Collapse During Humerus Stabilization with Photodynamic Implant
Authors: Sabharwal Samir , Boland Patrick J. , Vaynrub Max 
Published: April 2024

Case:
We present 2 cases of severe hemodynamic collapse during prophylactic stabilization of impending pathologic humerus fractures using a photodynamic bone stabilization device. Both events occurred when the monomer was infused under pressure into a balloon catheter.

Conclusion:
We suspect that an increase in intramedullary pressure during balloon expansion may cause adverse systemic effects similar to fat embolism or bone cement implantation syndrome. Appropriate communication with the anesthesia team, invasive hemodynamic monitoring, and prophylactic vent hole creation may help mitigate or manage these adverse systemic effects.
Treatment challenges and outcomes of older patients with acute myeloid leukemia from India
Authors: Singh Suvir , Lionel Sharon , Jain Hasmukh , Rajendra Akhil , Nayak Lingaraj , Selvarajan Sushil , Samuel Prasanna , Ahmed Rayaz , Aggarwal Narendra , DS Pavitra , Byreddy Poojitha , John M Joseph , Mishra Kundan , Kumar Suman , Paul Mobin , Abraham Latha K , Kayal Smita , Ganesan Prasanth , Philip Chepsy C , Das Damodar , V Sreeraj , Mehta Prashant , PK Jayachandran , Raghavan Vineetha , Bala Stalin Chowdary , Ram Bharath , Majumdar Swaratika , Prakash Om , U Barath , Bagal Bhausaheb , Abraham Aby , Kapoor Rajan , Bhurani Dinesh , Sengar Manju , Mathews Vikram 
Published: April 2024

Abstract

Globally, overall survival (OS) of older patients with AML continues to be suboptimal with very little data from India. In a multicenter registry analysis, we evaluated 712 patients with AML older than 55 years. Only 323 (45.3%) underwent further treatment, of which 239 (74%) received HMAs, and 60 (18%) received intensive chemotherapy (IC). CR was documented in 39% of those receiving IC and 42% after HMAs. Overall, 100 (31%) patients died within 60 days of diagnosis, most commonly due to progressive disease (47%) or infections (30%). After a median follow-up of 176 days, 228 (76%) of patients had discontinued treatment. At one year from diagnosis, 211 (65%) patients had died, and the median OS was 186 days (IQR, 137–234). Only 12 (3.7%) patients underwent stem cell transplantation. Survival was significantly lower for those older than 60 years (p < 0.001). Patients who died had a higher median age (p = .027) and baseline WBC counts (p = .006). Our data highlights suboptimal outcomes in older AML patients, which are evident from 55 years of age onwards, making it necessary to evaluate HMA and targeted agent combinations along with novel consolidation strategies to improve survival in this high-risk population.
The Impact of Strategic Leadership on Strategic Performance in Higher Education Institutions: The Mediating Role of Change Management
Authors: Alamad Tamara , Alrawashedh Nahed Habis , Alhawamdeh Hamzeh , Harahsheh Alaa Ahmad , Zraqat Omar , Hussien Lina Fuad , Zureigat Qasim , Alkhawaldeh Bashar Younis 
Published: April 2024

Abstract

This study aims to identify the impact of strategic leadership (SL) in enhancing strategic performance (SP) using the balanced scorecard (BSC) approach in Jordanian higher education institutions. In addition to identifying what change management (CM) can provide in explaining the role of SL in enhancing SP. The study population consisted of all official universities in Jordan, which numbered (11) official universities. The study followed a comprehensive survey method, where questionnaires were distributed to all official universities. The sampling unit consisted of deans of colleges in official Jordanian universities. The sample size was 350 respondents. The recovered questionnaires were (238) questionnaires. The results of analyzing the study data indicated that there was an effect for all dimensions of SL on SP. The study also found that all dimensions of SL affect SP in Jordanian official universities. Finally, the results of the data analysis indicated that the CM variable plays a mediating role in the impact of SL on SP. Based on the results, the study recommends the need for Jordanian official universities to pay attention to strengthening aspects of SL among current and future leaders and raising them to higher levels.
Changes in biochemical compositions and salinity tolerance responses of different bread wheat cultivated in an arid and semi-arid climate
Authors: Norouzi Saeed , Akbari Gholamali 
Published: April 2024

Abstract
The present study aimed to investigate different responses of some wheat cultivars under salinity conditions. Accordingly, two experiments were performed as Petri and farm studies. Therefore, the effects of different salinity levels (control, 4, 8, and 12 dS.cm− 1) were firstly studied on seed germination indices and some growth traits of six bread wheat cultivars (Chamran-2, Mehrgan, Marvdasht, Narin, MS-89-13, and MS-90-13) using a factorial based on the completely randomized design in the Petri experiment for ten days in three replications. Then, responses of the best cultivars selected were compared in both normal and saline farms as combined analysis based on the randomized complete block design during two 2020–2021 and 2021–2022 growing seasons in three replications. The Petri data showed that germination responses against salinity levels were negatively concentration-dependent. The best germination prcentage, T50, shoot length, and leaf protein for all cultivars were obtained under the control treatment. Among cultivars, the highest germination percentage, shoot length, and leaf protein and the lowest T50 of all cultivars were achieved for the Chamran-2 and the minimum values of root length and root length stress tolerance index traits for the MS-89-13 × 12dS.m− 1 salinity interaction. Farm experiment data showed that maximum values for the plant height, 1000-grain weight, grain and biological yields, pigments, grain protein, wet gluten, and gluten index were achieved for plants grown under normal conditions and second year of the experiment. Chamran-2, and then Mehregan, had more proper conditions and had longer plants, heavier grain weight, and higher grain and biological yields. However, the maxium values for wet gluten and gluten index indices were obtained for Mehregan and Narin cultivars, respectively. The highest straw yield was obtained under Chamran-2 cultivar×Normal farm×Second year interaction. The highest catalase activity were recorded for saline conditions and first year of the experiment and the highest superoxide dismutase activity was observed for the Narin cultivar×Saline conditions×Second year interaction. Eventually, considering the predominant characteristics of the farm experiments, Chamran-2 and Mehrgan cultivars can be cultivated in the southern regions of Iran and similar areas as a reference.
Analysis of influencing factors on survival prognosis of hemodialysis patients
Authors: Jiang Bin , Ma Xiaoli 
Published: April 2024

Abstract

Background
Maintenance hemodialysis patients often have various comorbidities, which affect the quality of life of patients. We aimed to investigate the factors influencing the survival and prognosis of dialysis patients.
Methods
The admitted dialysis patients in our hospital from 2016 to 2018 were followed up. The general data, dialysis treatment indexes and test indexes of death group and survival group were compared, and the influence of the above indices on survival prognosis was analyzed.
Results
COX proportional hazard regression model analysis demonstrated that age (RR = 1.036, P = 0.000), primary disease (RR = 0.258, P = 0.003), diabetes (RR = 4.400, P = 0.001), initial pathway (RR = 0.390, P = 0.000) and dialysis frequency (RR = 0.532, P = 0.000) were the factors influencing the survival time of dialysis patients.
Conclusions
Old age, diabetes mellitus, central venous catheterization and low dialysis frequency are risk factors to reduce survival time of patients. Further observation of the dynamic changes of the above indicators to explore their correlation with survival prognosis may have more guiding value in clinical work.
Do preventive child examinations in general practice reduce the risk of overweight and obesity?
Authors: Heuckendorff Signe , Brund Rene , Eggertsen Charlotte , Thomsen Janus , Fonager Kirsten 
Published: April 2024

Abstract

Objective: This study aims to investigate the association between attendance at routine preventive child health examinations in general practice and the risk of overweight and obesity in Danish children at age six, with a specific focus on children of parents with psychosocial risk factors.
Methods: Utilizing nationwide Danish registers, a population-based birth cohort of 725 926 children born between 2000-2012 was analyzed. Information on preventive health examination attendance and BMI data were obtained. Statistical analyses, including modified Poisson regression, were conducted to assess the relationship between examination attendance and overweight/obesity risk.
Results: The study found no significant association between attending these examinations and a reduced risk of overweight at age six in the overall population. In the subgroup of children of parents having 10 years of education of less, non-attendance was associated with a slightly increased risk of overweight, ranging from eight to nine percent. Regarding obesity risk, a dose-response correlation was observed, indicating that missing examinations increased the risk of obesity. Children of parents with psychosocial risk factors, particularly those with parents of low educational attainment, faced increased obesity risks, with the highest risk observed in children of parents with 10 years of education or less who missed all examinations, showing a four- to five-fold increase compared to children of parents with 14 years of the education or more attending all or missing only one exam (reference).
Conclusion: Although routine preventive child health examinations may not directly reduce the risk of overweight, they could potentially mitigate obesity risk, especially in vulnerable populations. Further research is warranted to understand the underlying mechanisms and to develop targeted interventions to address health disparities in childhood obesity.
Investigation of oceanic wave solutions to a modified (2+1)-dimensional nonlinear Schrodinger coupled system
Authors: Oluwasegun Kayode , Ajibola Samuel , Akpan Udoh , Akinyemi Lanre , Senol Mehmet 
Published: April 2024

Abstract
This paper explores the oceanic wave characteristics exhibited by a modified integrable generalized (2+1)-dimensional nonlinear Schrodinger system of equations through variable coefficients. Two newly modified methods, specifically the improved nonlinear Ricatti equation method and the improved sub-equation method, have been proposed to investigate the aforementioned nonlinear system. Through the utilization of these methods, we successfully obtain traveling and solitary waves solutions for this nonlinear system. We emphasize several constraint conditions that serve to guarantee the existence of these solutions. More comprehensive information about the physical dynamical representation of some of the solutions presented is illustrated through graphical depictions. The Mathematica software package is employed to produce both three-dimensional and their corresponding contour plots, thereby improving the visualization and comprehension of the solutions. This paper illustrates that the two proposed approaches provide straightforward and efficient means of acquiring various types of soliton, rational, trigonometric, hyperbolic and exponential solutions. Moreover, they present a more potent mathematical tool for addressing a variety of other nonlinear partial differential equations that hold significance in the field of applied science and engineering.