bluuebunny/crossref_metadata_2025_split huggingface dataset:
Methods for assessing the impact of partial restraint of hollow core slabs in platform joints on the strength of standard slab cross-sections
Authors: Zenin S. A. , Kudinov O. V. 
Published: February 2025

Introduction. Currently, hollow core slabs are widely used in large-panel construction, including slabs of formwork-free shaping. Structurally, the presence of voids in slabs has both advantages and disadvantages. One of the drawbacks of hollow precast elements in slabs consists in the reduced load-bearing capacity of the support section compared to solid slabs. This issue is most pronounced when considering the effect of partial restraint in the support zone of the slab in platform joints in large-panel buildings. According to the current design standards for large-panel buildings (SP 335.1325800.2017), the strength of support sections under partial restraint depends on the value of the elastoplastic moment, which is determined empirically and requires verification. The value of the support moment under partial restraint also requires verification due to some current theoretical grounds suggesting its underestimation. Therefore, it seems reasonable to analyze existing approaches to calculating the impact of partial restraint of hollow core slabs on the strength of support sections in platform joints in large-panel buildings and, if necessary, to conduct additional experimental and numerical studies on this issue.Aim. To analyze the current practice of designing nodes of large-panel buildings using hollow-core slabs, as well as the available experimental studies of the bearing capacity of platform joints with various structural solutions.Materials and methods. The analysis was conducted by reviewing Russian and foreign regulatory and technical documentation, as well as publicly available results of experimental studies.Results. The authors have systematized the data on existing methodologies for assessing the strength of hollow core slabs in platform joints in large-panel buildings.Conclusions. The study analyzed existing methodologies for calculating the strength of hollow core slabs considering their partial restraint in platform joints in large-panel buildings. The authors examined methodologies adopted in Russian and foreign regulatory documents, as well as experimental studies on the topic. The analysis indicated that current calculation methods may neglect the main factors affecting the load-bearing capacity of support sections in joints in large-panel buildings and require further development. Additional research aimed at analyzing the stress-strain state of support sections of hollow core slabs with partial restraint in platform joints will be instrumental in developing a refined physical multifactor model of joint behavior and optimizing structural solutions in certain cases.
Methodology for forecasting the values of seasonal thaw layer in permafrost areas considering their degradation under climate warming
Authors: Alekseev A. G. , Sazonov P. M. , Ryabukhina V. G. 
Published: February 2025

Introduction. The ongoing climate changes in the permafrost zone associated with global warming significantly impact the temperature regime and the depth of seasonal thawing of permafrost soils. In current design practices, a constant calculated value for the depth of seasonal thawing is adopted; however, in reality, it varies and may exceed the design values. Existing regulatory requirements for design neglect this variation, which underscores the relevance of the study.Aim. To develop a methodology for forecasting changes in the thickness of the seasonal thaw layer based on climate parameters altering with warming.Materials and methods. The methodology of the study involved an analysis of contemporary scientific and technical literature, regulatory documents, methodological literature, and archival data from meteorological stations across Russia; determination of the relationship between changes in the depth of seasonal thawing over time; development of a forecasting methodology for changes in the thickness of the seasonal thaw layer based on climate parameters affected by warming; recommendations for utilizing the results in the development of regulatory and technical documents.Results. The depth of seasonal thawing significantly affects the cost and scope of foundation construction and land planning works. The existing calculation methodology fails to account for climate change trends. The permafrost zone of Russia displays an increase in the temperature of soils and the depth of seasonal thawing. The highest convergence of calculated results with field observations was achieved using the Borey 3D heat engineering program while considering climate change.Conclusions. The depth of thawing is to be determined using a heat engineering program that accounts for climate change. Determination of the foundation bottom depth, as well as strength and deformation calculations, are to consider changes in thaw depth during operation and the impact of global warming.
The Host Galaxy of the Hyperactive Repeating FRB 20240114A: Behind a Galaxy Cluster
Authors: Chen Xiang-Lei , Tsai Chao-Wei , Li Di , Wang Pei , Feng Yi , Zhang Jun-Shuo , Li Guo-Dong , Zhang Yong-Kun , Bao Lu-Lu , Liao Mai , Zhang Lu-Dan , Zuo Pei , Bao Dong-Wei , Niu Chen-Hui , Luo Rui , Zhu Wei-Wei , Zou Hu , Xue Sui-Jian , Zhang Bing 
Published: February 2025

Abstract
We report on the optical spectroscopic observations of the host galaxy of the hyperactive repeating fast radio burst (FRB) FRB 20240114A. The host galaxy is a dwarf galaxy at a redshift of z = 0.1306 ± 0.0002. With a rest-frame coverage of 4300–7900 Å, we have detected Hα, Hβ, [O iii] λλ4959,5007, [N ii]λλ6548,6583, and [S ii] λ6716 emission lines. The emission line ratios suggest that the ionization in the host galaxy is dominated by star formation. The star formation rate (SFR) derived from the Hα emission line is (0.06 ± 0.01) M
⊙ yr−1, and the spectral energy distribution fitting suggests the lower limit of the SFR(UV) is 0.09 M
⊙ yr−1. The stellar mass is (4.0 ± 1.8) × 108
M
⊙, making the specific SFR

log

sSFR
(
H
α
)
=
−
9.17
±
0.07

yr

−
1

. The line ratios indicate an upper limit of a metallicity of 12 + log10([O/H]) ∼ 8.5. As the nearest dwarf host galaxy with a repeating FRB, the activity of FRB 20240114A and the properties of this host galaxy closely resemble those of FRB 20121102A and FRB 20190520B. The Hα-traced dispersion measure provided by the ionized gas of the host galaxy has a moderate contribution of ∼200 pc cm−3, assuming a warm ionized gas. We found that the distributions of the stellar mass versus SFR are significantly different between repeating and one-off FRBs, as determined by the MANOVA test with p = 0.0116.
Green human resource management and Sustainable Development Goals in non-profit organisations
Authors: Singh Shanitha , Martins Ana , Tefera Orthodox 
Published: February 2025

Orientation: Conserving ecosystems including a culture that respects life in water and on land, aligned to the sustainable development goals (SDGs), could prevent future pandemics and natural hazards, but this cannot be achieved without establishments such as environmental non-profit organisations (NPOs) that operate across business and government sectors servicing the environment and vulnerable communities. Environmental NPOs could promote green Human Resource Management practices boosting scalable actions to achieve the SDGs.Research purpose: The objective of this article is to explore the contemporary role and practices of Human Resources Management (HRM) within the NPO realm and the possible alignment and underwriting of the SDGs.Motivation for the study: Non-profit organisations can be found to work across most, if not all, of the 17 United Nations’ SDGs. The HRM function plays a significant role in contributing towards society’s progress in achieving the SDGs with its focus on people management.Research approach/design and method: This qualitative study applied an interpretivist philosophy with an inductive research approach, a case study strategy and multiple data collection techniques. Eleven cases were studied and limited to environmental South African NPOs selected purposively.Main findings: Developing sustainable practices within the realm of HRM could augment non-profit organisational resilience by accentuating their work within the SDGs framework.Practical/managerial implications: With a long-term view to sustainable HRM, including a view to greening HRM practices, practitioners can support their organisations with the achievement of the SDG targets.Contribution/value-add: This study contributed to the academic literature on organisational resilience and could assist policymakers in the understudied South African NPO sector with HRM practices and alignment to the SDGs.
نسق الفحولة في القصيدة الملحمية في الشعر العراقي الحديث
Authors: م.م زين العابدين حسين علي              أ.م.د أحمد مهدي عطا الله  
Published: February 2025

لم تنج القصيدة الحديثة من التخلص من بعض الأنساق الثقافية القديمة، وتعد الفحولة أبرز الأنساق الثقافية تمظهراً في التراث الشعري العربي القديم، فقد تمثل هذه الظاهرة ملمحاً جمالياً عند الشعراء والنقاد العرب وهم يبحثون عن أشعر بيت، وأعذب بيت، وأجود بيت، إلا أن مفهوم الفحولة في النقد الحداثي طرأ تحول في دلالته، فعدّ من عيوب الخطاب الشعري، والقصيدة الملحمية بوصفها ملمحاً حداثياً في الشعر العربي عموماً والعراقي خصوصاً ،لم تتخلص من نسق الفحولة، وهذا هو محور الدراسة ، وقد اتخذت الدراسة النقد الثقافي آلية لتحليل الخطاب الشعري ،والكشف عن نسق الفحولة في الشعر العراقي الحديث.
إن نسق الفحولة أكثر فاعلية من بقية الأنساق القديمة ،ويتمظهر بحالات عدة، ويتمثل بصورة البطل الخارق، والبطل في القصيدة الملحمية يمثل الجزء الأساس من بنية القصيدة، فلا وجود لقصيدة ملحمية من دون بطل.
PENGARUH SERVICE EXCELLENT DAN KOMPETENSI PUSTAKAWAN TERHADAP KEPUASAN PENGGUNA PERPUSTAKAAN UNIVERSITAS SUMATERA UTARA
Authors: Arifin Dinar Azizah , Rahmat Muhammad , Rukmini  , Tumanggor Mutawaqil Bilah 
Published: February 2025

Tujuan penelitian ini ialah Untuk mencari tahu dan menganalisa dampak service excellent, pengaruh kompetensi pustakawan pada kepuasan pengguna perpustakaan Universitas Sumatera Utara. Metode penelitian yang dipakai penelitian kuantitatif. populasi dalam penelitian yaitu 1894 orang. sampel pada analisis ini 95 orang. Dari hasil penelitian dan pembahasan, didapat simpulan bahwa service excellent dan kompetensi perpustakawan berpengaruh signifikan pada kepuasan pengunjung perpustakaan Universitas Sumatera Utara. Service excellent dan kompetensi perpustakawan memang dapat memberikan dampak signifikan terhadap kepuasan pengunjung perpustakaan di Universitas Sumatera Utara (USU). Hal dapat dibuktikan dari hasil uji hipotesis yan peneliti lakukan terhadap setiap variabel penelitian, sebagai berikut: Service excellent berdampak dan signifikan terhadap kepuasan pengunjung perpustakaan Universitas Sumatera Utara, sebagaimana hasil penelitian diketahui nilai t hitung > t tabel yaitu 4,451 > 1,985 dan dengan nilai sig 0,000 < 0,05 maka H1 diterima dan H0 di tolak. Kompetensi Perpustakawan berdampak dan signifikan pada kepuasan pengunjung perpustakaan Universitas Sumatera Utara, sebagaimana hasil penelitian diketahui nilai thitung > t tabel yaitu 3,507 > 1,985 dan dengan nilai sig 0,001 < 0,05 maka H1 diterima dan H0 di tolak. Service Excellent dan Kompetensi Perpustakawan berpengaruh dan signifikan terhadap kepuasan pengunjung perpustakaan Universitas Sumatera Utara, sebagaimana hasil penelitian diketahui nilai f hitung > f tabel yaitu 83,354 > 3,09 dan dengan nilai Sig 0,000 < 0,05 maka H1 diterima dan H0 di tolak. Sementara itu, diperoleh nilai R2 senilai 0,644 Dengan demikian menyatakan bahwa service excellent dan kompetensi perpustakawan secara simultan berdampak pada kepuasan pengunjung perpustakaan Universitas Sumatera Utara senilai 64,4% dengan sisanya 35,6% yang dipengaruhi oleh aspek-aspek di luar penelitian.
DA GEOGRAFIA TRADICIONAL AO PENSAMENTO GEOGRÁFICO CRÍTICO
Authors: Gonçalves Marcelino Andrade , Araújo dos Santos Claudinei 
Published: February 2025

Neste artigo, procuramos abordar as questões e posicionamentos teóricos que contribuíram para a construção e estruturação do pensamento geográfico crítico, que se opõem metodológica e politicamente às bases da Geografia tradicional. Para isso, utilizamos diferentes autores vinculados à corrente da Geografia crítica que fundamentam a posição teórica e nos ajudam a definir o objeto de estudos da Geografia, o espaço geográfico, social e historicamente produzido. Subimos, como disseram, nos ombros de gigantes para tentar ver ao longe. Entendemos que neste processo de renovação da Geografia, podemos destacar a apropriação metodológica do materialismo histórico-dialético, por parte dos geógrafos, como instrumento metodológico fundamental de sua renovação, o que permitiu, à ciência geográfica, observar e analisar a produção do espaço como processo sócio-histórico espacial e suas contradições. Do momento em que se procura compreender as relações de poder no espaço socioeconômico e territorial, a Geografia Crítica expõe sua essência a contemporaneidade, de forma peculiar para contribuir no entendimento dos jogos de poder intercalados ao espaço/tempo. Assim, as complexas interlocuções que envolvem os Estados Nacionais e as sociedades impactadas pelo poder/capital exigem uma análise crítica e coerente que coloque em tela as discussões que a massa social mormente deixa passar desapercebida. Destaca-se como resultado desse exercício a divergência metodológica, a definição do objeto e na ressignificação dos conceitos da Geografia Crítica em face à Geografia Tradicional. Enfim, trata-se de um exercício que permitirá, sobretudo, aos que por diferentes motivos se aproximam da Geografia, imiscuir-se ao debate.
PALAVRAS-CHAVE: Geografia Tradicional; Geografia Crítica; Teoria; Sociedade; Espaço;
A fuzzy-based method of assigning train managers to task types
Authors: Restel Franciszek J. 
Published: February 2025

Besides an employee's skill level, several personal qualities may affect the implementation of a task during job activities. Thus, it might be hypothesised that the effectiveness of railway personnel depends on the relationship between their abilities and the types of available duties. This article presents research results on the compatibility of personnel and performed duties focusing on train managers. This profession is important due to passenger safety, and there is a lower scientific interest in this job than in the case of train drivers. A complex survey has been conducted in cooperation with volunteers from the rail industry. As a result, groups of duties and personnel profiles have also been elaborated in cooperation with railway industry experts. A fuzzy logic-based method was built to classify the train managers. Then, a self-assessment was conducted as the final step; experts were asked to assess the managers' attitudes. The overall model was tested during validation. The automatised fuzzy-based method recognised 80 % of managers and indicated good clusters.
Anti-Inflamatory Activity Evaluation of Sungkai Leaf Ethanol Extract (Peronema Canescens Jack) Using the Red Blood Cell Membrane Stabilization Method
Authors: Aria Mimi , Nessa Nessa , Ilona Sandra , Lestari Wahyu 
Published: February 2025

Research has been carried out on the anti-inflammatory activity test of the ethanol extract of Sungkai leaf (Peronema canescens Jack) with the red blood cell membrane stabilization method. Purpose of study was to determine the anti-inflammatory activity the effect of the concentration of ethanol extract of sungkai leaves. Anti-inflammatory activity can be determined by measuring stability red blood cells, looking at absorbance of decomposition of hemoglobin so that the percentage of stability is obtained. Variations in the concentration of the test solution made were 4 variations in concentration, namely 15, 30, 60 and 120 ppm. The extract's ability to reduce inflammation. was then compared standard ibuprofen. Based on the study's findings, the percentage of erythrocyte membrane stability of sungkai leaf extract sequentially with concentrations of 15, 30, 60 and 120 ppm was 2.24%, 32.61%, 37.72%, 44.31%, while the comparison (ibuprofen) The percentage of erythrocyte membrane stability, respectively, with concentrations of 15, 30, 60 and 120 ppm were 24.1%, 36.2%, 49.4%, 63.4% and control 0.98%. The data from study were analyzed using one-way ANOVA which was followed by Duncan test. From this research is isconcluded The activity that reduces inflammation of the ethanolic extract of the sungkai leaf variation of the concentration regarding ethanolic extract of sungkai leaf (Peronema canescens Jack) gave an influence on the anti-inflammatory activity with an increase in the proportion of the stability of the red blood cell membrane following The rise in the concentration of the ethanol extractf the sungkai leaf.
<b>HUMAN DEVELOPMENT INDEX AND INDUSTRIAL LABOR ON ECONOMIC GROWTH IN NORTH SUMATRA PROVINCE </b>
Authors: Efendi Bakhtiar , Nasution Diwayana Putri , Rusiadi Rusiadi , Pratiwi Devani 
Published: February 2025

The purpose of this study was to determine the effect of the human development index and industrial labor on economic growth in North Sumatra Province. The specific target of this research is to analyze the influence of human development index variables and industrial labor on economic growth in North Sumatra Province. So that it can show how much influence these variables have on economic growth. This study is descriptive qualitative with a literature study method through literature studies sourced from journals of previous research results related to the title, also through access to data obtained from the website as an information publication. based on the results of this study explained that the Human Development Index in North Sumatra Province affects Economic Growth while Industrial Labor does not affect Economic Growth in North Sumatra Province. In this study, it is necessary to have policies that can encourage economic growth in North Sumatra Province, including equal distribution of human development in each region so that inequality does not occur, as well as improvements in the field of education, especially in remote areas of North Sumatra Province to form quality human capital.
Determinants of Rotavirus among diarrheal children (0-5yrs) attending some health facilities in Sokoto Town, Nigeria
Authors: Salisu Garba  , Malami Dikko  , Barga Isiyaka Bala  , Zayyanu Malami  , Yusuf Sarkingobir  
Published: February 2025

This study was carried out to molecularly detect and characterize Rotaviruses from children attending selected hospitals in Sokoto State. A total of 350 stools were collected from diarrheic children under five years of age. Samples were analyzed for the presence of Group A rotavirus antigens using CUSABIO Human Rotavirus (RV Ag) ELISA kit. Result reveals that, children that were fed with breast milk and solid foods had the highest prevalence (39.6%) while children that were fed with solid food recorded only 15.1% prevalence. Chi-square analysis indicated statistical significant relationship between Rotavirus diarrhea and type of food fed, P<0.05 (0.0204). Major sources of water of the family of infected children is Tap water (54.75%) and well water (39.6%) respectively, while River and Pond water was 3.8% and 1.9%. respectively and there is statistical association between rotavirus diarrhea and source of water (p<0.05). Children that often had contact with animals have high prevalence (69.8%) than their counterparts (5.7%). Chi-square analysis indicated significant association of Rotavirus diarrhea and child’s contact with animals (P<0.05). The percentage positive was higher in children whose parents are civil servants (47.2%) and is lower in children of un employed parents (28.3%). Children whose parents had primary level of educations had the highest number of rotavirus disease. There is significant association between Rotavirus disease and type of food, source of water, contact with animals and level of education of the parents. Interventions including should be provided to safeguard public health against the Rotavirus.
Impacto da catarata congênita no desenvolvimento visual infantil
Authors: D'Apolito Nicoly Layla Bonifácio , Borges Jhonatan Lucas Ferreira , Sales Hemily da Silva , Morera Chabely Sanchez , Brito Jussara da Silva , Mendonça Flávia Silva , Lins Letícia da Costa , Discacciati Renato , Surlo Heitor Filipe , Gurgel Felipe Moraes Cortez , Silva Ana Beatriz Monteiro Correa da Costa e , Ramos Clara Alvarenga Moreira Carvalho , Lima Rebeca Maria Amorim Alves de , Tavares Mayane Freire 
Published: February 2025

O presente estudo revisou o impacto da catarata congênita no desenvolvimento visual infantil, utilizando uma abordagem de revisão integrativa. O objetivo foi avaliar como a presença da catarata congênita afeta o desenvolvimento visual da criança e quais são os impactos no desenvolvimento neurovisual e funcional. A metodologia consistiu em uma revisão integrativa realizada nas bases de dados Scientific Electronic Library Online (SCIELO), Cochrane e Medline, utilizando descritores de ciências da saúde relacionados ao tema, como “Cataract”, “Child Development” e “Early Diagnosis”. Os resultados mostraram que a catarata congênita é uma causa significativa de deficiência visual infantil, frequentemente resultando em ambliopia. O diagnóstico e tratamento precoces são essenciais para prevenir danos permanentes à visão.
MATHEMATICAL ASSESSMENT ON THE IMPACT OF INSECTICIDE SPRAY ON THE DYNAMICS OF MALARIA TRANSMISSION USING NON LINEAR MATHEMATICAL MODEL
Authors: ALHASSAN CHARITY JUMAI  , KENNETH OJOTOGBA ACHEMA  
Published: February 2025

Malaria is a life threatening illness that affect millions of people all over the world even though significant effort have been implemented with the treatment of insecticide treated net, the disease remains chronic. In this work, we used nonlinear mathematical model to analyzed the transmission dynamics of malaria disease. An insecticide control strategy was incorporated, using system of ordinary differential equations and established that the model is locally asymptotically stable when the associated reproduction number is less than unity. Numerical simulation was carried out and pertinent findings were displayed graphically. It was found that insecticide spray has a significant impact on malaria transmission.