bluuebunny/crossref_metadata_2025 huggingface dataset:
Long-term dynamics of the food base for nekton in Pacific waters at the Kuril Islands and Kamchatka in summer
Authors: Naidenko S. V. , Shebanova M. A. , Kuznetsova N. A. , Radchenko K. V. , Metreveli V. E.
Published: December 2024

Modern data on dynamics of structure and abundance of zooplankton communities in the epipelagial layer of Pacific waters at the Kuril Islands and Kamchatka are presented on the data collected in summer of 2004–2023. On the background of changing environmental conditions, the portion of small- and medium-sized zooplankton is increased recently, mainly due to increasing abundance of moderately cold-water copepod Oithona similis and hyperiid Themisto pacifica. Among the large-sized zooplankton, increasing abundance of warm-water copepod Eucalanus bungii and decreasing number of cold-water Neocalanus copepods (especially N. cristatus) is observed. Inter-annual fluctuations of the total zooplankton stock did not exceed 3 times, while the biomass of some taxonomic groups varied in 4–9 times. The total biomass of zooplankton, which forms the basis of food base for fish and squids, is assessed as (96 ± 6).106 t in the 0–50 m layer and (90 ± 6).106 t in the 50–200 m layer. In summer, nekton consumes a small part of zooplankton production in this season (1/27). The studies of fish and squids consumption of zooplankton in the North-West Pacific did not reveal its significant dependence on the changes in structure and abundance of zooplankton communities, possibly related with oceanographic regime changes.
State of knowledge for thermohaline conditions on the shelf of West Kamchatka
Authors: Kolomeytsev V. V. , Gorin S. L.
Published: December 2024

All available data on water temperature and salinity for the shelf of West Kamchatka are analyzed and all scientific publications and the most important unpublished thesises concerning this area are summarized. Current ideas about the water masses distribution and seasonal and long-term variability of water temperature and salinity on the shelf are discussed. There is noted that the existing estimates of seasonal and long-term variability of water temperature require significant additions for recent times (last 20 years) and certain spatial areas. Insufficient understanding is revealed for spatial-temporal dynamics of salinity in the mixing zone between the river and sea waters that requires special research.
Microbial indication of pollution in the surface waters of Peter the Great Bay (Japan Sea) by heavy metals
Authors: Boychenko T. V. , Khristoforova N. K.
Published: December 2024

Water quality is assessed in some coastal areas of Peter the Great Bay, Japan Sea, by means of microbial indication. In the areas polluted with heavy metals, the number of metal-resistant forms of bacteria in heterotrophic microbial communities varies in accordance with the type and degree of environmental pollution. The heightened numbers of metal-resistant microorganisms in the Amur, Ussuri, and Nakhodka Bays indicate a high degree of anthropogenic load. The heavy industrial pressure is recorded there more than 20 years in such sites as Cape Lagerny and Cape Firsov (at the mouths of Pervaya Rechka and Vtoraya Rechka Rivers in the Amur Bay) and Lazurnaya Bay (in the Ussuri Bay) and extends recently in the coastal area at Bolshoy Kamen (Ussuri Bay), at Cape Tokarevsky (Amur Bay) and Cape Petrovsky (Nakhodka Bay). The waters in the Far Eastern Marine Reserve in the southwestern Peter the Great Bay are quite clean, with the least industrial impact caused mainly by transboundary transfer of pollutants.
Macrobenthos of the sublittoral in the Astafiev and Srednyaya Bights of Peter the Great Bay, Japan Sea (Far Eastern Marine Biosphere State Nature Reserve)
Authors: Galysheva Yu. A. , Somova E. G. , Somov A. A.
Published: December 2024

Species composition, abundance, ecological structure and spatial distribution of macrobenthos are considered in landscape and ecological conditions of the Astafiev and Srednyaya Bights in the eastern part of the Far Eastern Marine Biosphere State Nature Reserve. The main types of landscapes are identified on the data of landscape profiling. Granulometric composition of soils and organic matter content in the bottom sediments are analyzed. A total of 77 species are found in the macrobenthos of both bights. There are 28 species of epibenthos (similarity between bights by Jaccard index is 93 %) and 53 species of infauna (similarity 23 %), including 4 species common for both biotopes. Different ecological processes in the bottom-macrobenthos system occur in these nearby bights that affects biological diversity, abundance and structure of soft-soil benthos. Despite geomorphological similarity of the bights, the bottom environment in the Astafiev Bight is more enriched in organic matter, but taxonomic composition and abundance of infauna is poorer there. Bulk release of terrigenous matter from the eroded shore of Gamov Peninsula to this bight after rains destabilizes and jeopardizes its bottom environments and prevents formation of biologically stable, diverse and abundant benthos. In the neighbor Srednyaya Bight with a less erosive coastline, the bottom sediments are formed by marine processes mostly, so the macrobenthos on soft soils is distinguished there by great biodiversity. The epibenthos in both bights has no such differences and is represented by the most common species for Peter the Great Bay.
Basic principles of developing and interpretation of validity for fishery forecasts of pacific salmon in the Kamchatka Region in the modern period (analytical review for 2010–2020s)
Authors: Bugaev A. V. , Zikunova O. V. , Tepnin O. B. , Artyukhina N. B. , Shpigalskaya N. Yu.
Published: December 2024

Basic principles of fishery forecasts developing and their performance evaluation are considered for the modern forecasting of pacific salmon stocks dynamics in Kamchatka in 2018–2024. The forecasts validity is critically analyzed for the main units of the stocks, with attention to correct interpretation of the results and possible reasons of discrepancy between predicted and actual stock dynamics. Methodological aspects of forecasting are described taking into account the species specifics for pacific salmon. Certain stock units whose abundance forecasting is available using mathematical modeling are outlined. In the modern period of high abundance of salmon, a trend approach to forecasting is rational, because of possibility of prompt adjustment of the catch values in dependence on actual volume of the salmon runs. Climate and oceanographic conditions at Kamchatka are described for the modern period. Ecosystem nature of the discrepancy between predicted and actual rates of runs and catches for pacific salmon in 2020 and 2024 is shown. Density factor in the ecosystem due to significant increase of the salmon abundance in 2010–2020s is determined as the most likely reason of unexpectedly weak runs, presumably because of heightened mortality of fish with the length and weight decreasing under environmental changes negative for their food base. Special attention in forecasting should be paid to vast areas of positive or negative SST anomalies on the feeding grounds of Kamchatka herds of pacific salmon in the southwestern Bering Sea and North-West Pacific during their early pre-spawning migrations.
Discrete Brush Polymers Enable Signal Amplification through Architectural Precision
Authors: Ogbonna Nduka , Guragain Parikshit , Mayandi Venkatesh , Sadrinia Cyrus J. , Danrad Raman , Jois Seetharama , LAWRENCE JIMMY
Published: December 2024

The development of metal-free magnetic resonance imaging agents demands precise control over molecular architecture to achieve optimal performance. Current fluorine-based contrast agents rely on maximizing fluorine content (> 20 wt%) for sensitivity, requiring extensive solubilizing groups that lead to signal-diminishing aggregation. Here we show that discrete brush polymers (Đ = 1.0) with precise backbone lengths and a single terminal fluorine group achieve superior imaging performance through architectural control rather than high fluorine content. This design prevents both intra- and intermolecular fluorine aggregation while maintaining high aqueous solubility, enabling sharper signals and higher sensitivity than conventional systems despite containing less than 7 wt% fluorine. Systematic investigation reveals how backbone length controls fluorine mobility and signal generation, establishing clear structure-property relationships previously obscured by molecular heterogeneity. This work demonstrates how precise architectural control can enhance functional performance beyond traditional approaches, providing new strategies for designing imaging materials.
3-Oxabicyclo[3.1.1]heptanes as Isosteres of meta-Substituted Benzene Rings
Authors: Morvan Jennifer , Renders Evelien , Buijnsters Peter JJA , Ryabchuk Pavel
Published: December 2024

Replacement of the aromatic rings in drug candidates with isosteric rigid sp3-rich scaffolds can improve physicochemical properties and increase the chance of progressing the molecule in the development and open new chemical space. Isosteres of meta-substituted benzenes remain challenging due to the difficulty of mimicking the exit vector angles and bond distances. Herein, we report the synthesis of 1,5-disubstituted 3-oxabicyclo[3.1.1]heptanes (oxa-BCHs), which can serve as saturated isosteres of meta-substituted phenyl rings, with similar geometric arrangement. This structural motif can be obtained under mild reaction conditions via acid-mediated isomerization of (2-oxaspiro[3.3]heptan-6-yl)methanols using catalytic quantities of pyridinium chloride (PyrHCl). We demonstrate the utility of this methodology by preparing various building blocks for use in medicinal chemistry and incorporating the 3-oxa-BCH into the anticancer drug Sonidegib, improving its physicochemical properties, such as permeability, metabolic stability and solubility.
Revealing the hidden polysulfides in solid-state Na-S batteries: How pressure and electrical transport control kinetic pathways
Authors: Nguyen Hung Quoc , Dahl Kanedal Mikael , Todt Juraj , Jin Feng , Do Quyen , Zalka Dora , Maximenko Alexey , Stoian Dragos , Schell Norbert , van Beek Wouter , Boles Steven , Keckes Jozef , Rettenwander Daniel
Published: December 2024

Room temperature operation of Na-S batteries with liquid electrolytes is plagued by fundamental challenges stemming from polysulfide solubility and their shuttle effects. Inorganic solid electrolytes offer a promising solution by acting as barriers to polysulfide migration, mitigating capacity loss. While the sequential formation of cycling products in molten-electrode and liquid electrolytes-based Na-S batteries generally aligns with the expectations from the Na-S phase diagram, their presence, stability, and transitory behavior in systems with inorganic solid electrolytes at room temperature, remain poorly understood. To address this, we employed operando scanning micro-beam X-ray diffraction and ex-situ X-ray absorption spectroscopy to investigate the sulfur conversion mechanisms in Na-S cells with Na3PS4 and Na4(B10H10)(B12H12) electrolytes. Our findings reveal the formation of crystalline and amorphous polysulfides, including those predicted by the Na-S phase diagram (e.g., Na2S5, Na2S4, Na2S2, Na2S), high-order polysulfides observed in liquid-electrolyte systems (e.g., Na2Sx, where x = 6–8), and phases like Na2S3 typically stable only under high-temperature or high-pressure conditions. We demonstrate that these transitions are governed by diffusion-limited kinetics and localized stress concentrations, emphasizing the critical role of pressure, which serves as both a thermodynamic variable, as well as a design parameter, for optimizing solid-state Na-S battery performance necessary for pushing these cells closer to the commercial frontier.
Electrosynthesis of Carbon Nitride Quantum Dots and exploring its electrocatalytic activity for Oxygen Reduction Reaction
Authors: Mallick Prayash , Isaac Bikash Ranjan , Alwarappan Subbiah , Pillai Vijayamohanan K.
Published: December 2024

We here report a single-step electro-synthetic route for the transformation of melamine (in 1-butyl-3-methylimidazolium tetrafluoroborate) to graphitic carbon nitride quantum dots (g-C3N4 QDs) as confirmed by a variety of characterization tools including Fourier-transform infrared and x-ray diffraction. The formation of g-C3N4 QDs with size tuning occurs by varying the applied potential (-1.5 V, -3.0 V, -4.5 V) in a controllable manner in the same electrolyte as revealed from the photoluminescence at 420 (violet region), 502 (blue region), and 510 nm (green region) due to the modulation of the band gap. The dual emission in the violet region is excitation-independent, while the excitation-dependent features suggest contributions from the surface defects. The size-dependent morphology of these quantum dots is further investigated for electrocatalytic applications using oxygen reduction reaction (ORR) in alkaline media as a model reaction. The observed Tafel slope (~30 mV/dec) and the exchange current density reveal interesting kinetic enhancement compared to traditional Pt-based bench-mark electrocatalysts and superior stability upon cycling. With better performance parameters like current density values at a comparatively lower overpotential and sustained stability, these can replace the conventional precious metal electrocatalysts to facilitate cheaper fuel cells, metal-air batteries and water electrolyzers.
Photobiocatalytic Enantioselective C(sp3)–H Acylation Enabled by Thiamine-dependent Enzymes via Intermolecular Hydrogen Atom Transfer
Authors: Lu Yen-Chu , Adukure Ronald , Roy Satyajit , Chien Derek , McGill Matthew , Scheidt Karl , Fasan Rudi
Published: December 2024

Hydrogen atom transfer (HAT) constitutes a powerful mechanism exploited in biology and chemistry alike to functionalize otherwise inert C(sp3)–H bonds in organic molecules. Despite its synthetic potential, achieving stereocontrol in chemical HAT-mediated C–H functionalization transformations remains challenging. By merging the radical reactivity of thiamine (ThDP)-dependent enzymes with chemical hydrogen atom transfer, we report here a photobiocatalytic strategy for the enantioselective C(sp3)–H acylation of an organic substrate, a transformation not found in nature, nor currently attainable by chemical means. This method enables the direct functionalization of benzylic C(sp3)–H sites in a broad range of substrates to furnish valuable enantioenriched ketone motifs with good to high enantioselectivity (up to 96% e.e.). Mechanistic and reactivity studies support the involvement of radical species derived from the Breslow intermediate and C–H substrate, along with the critical role of the photocatalyst and hydrogen atom abstraction reagent for productive catalysis. This study illustrates the productive integration of ThDP-mediated biocatalysis with chemical HAT, expanding the range of asymmetric C(sp3)–H functionalization transformations accessible through biocatalysis.
NSD3 protein methylation and stabilization transforms human ES cells into variant state
Authors: Krishnamoorthy Vignesh K , Hamdani Fariha , Shukla Pooja , Rao Radhika Arasala , Anaitullah Shaikh , Biligiri Kriti Kestur , Kadumuri Rajashekar Varma , Pothula Purushotham Reddy , Chavali Sreenivas , Rampalli Shravanti
Published: December 2024

Cultured human embryonic stem cells (hESCs) can develop genetic anomalies that increase their susceptibility to transformation. In this study, we characterized a variant hESC (vhESC) line and investigated the molecular mechanisms leading to the drift towards a transformed state. Our findings revealed that vhESCs up-regulate EMT-specific markers, accelerate wound healing, exhibit compromised lineage differentiation, and retain pluripotency gene expression in teratomas. Furthermore, we discovered an altered epigenomic landscape and overexpression of the lysine methyltransferases EHMT1, EHMT2, and NSD group of proteins in vhESCs. Remarkably, depleting NSD3 oncogene reversed the molecular and phenotypic changes in vhESCs. We identified a detailed mechanism where EHMT2 interacts and methylates NSD3 at lysine 477, stabilizing its protein levels in vhESCs. In addition, we showed that NSD3 levels are regulated by protein degradation in hESCs, and its stabilization leads to the emergence of the variant state. Overall, our study identify that misregulation of NSD3 in pluripotent stem cells, through methylation-mediated abrogation of its protein degradation, drives hESCs towards oncogenic transformation.
Granularity-aware legal question answering: a case study of Indonesian government regulations
Authors: Faisal Douglas Raevan , Darari Fariz , Ryanda Reynard Adha
Published: December 2024

Question answering (QA) technologies are crucial for building conversational AI.  Current research related to QA for the legal domain lacks focus on the organized structure of laws, which are hierarchically segmented into components at varying levels of detail. To address this gap, we propose a new task of granularity-aware legal QA, which accounts for the underlying granularity levels of law components. Our approach encompasses task formulation, dataset creation, and model development. Under the Indonesian jurisdiction, we consider four law component granularity levels: chapters (bab), articles (pasal), sections (ayat), and letters (huruf). We include 15 government regulations (Peraturan Pemerintah) of Indonesia related to labor affairs and build a legal QA dataset with granularity information. We then design a solution for such a task—the first IR system to account for legal component granularity. We implement a customized retriever-reranker pipeline in which the retriever accepts law components of multiple granularities and the reranker is trained for granularity-aware ranking. We leverage BM25 and BERT models as retriever and reranker, respectively, yielding an end-to-end exact match accuracy of 35.68%, which offers a significant improvement (20%) over a strong baseline. The use of reranker also improves the granularity accuracy from 44.86% to 63.24%. In practical context, such a solution can help provide more precise answers, not only from legal chatbots, but also other conversational AI that deals with hierarchically-structured documents.
Enhancement of images compression using channel attention and post-filtering based on deep autoencoder
Authors: Wirabudi Andri Agustav , Fachrurrozi Nurwan Reza , Dorand Pietra , Royhan Muhamad
Published: December 2024

Image compression is a crucial research topic in today's information age, especially to meet the demand for balanced data compression efficiency with the quality of the resulting image reconstruction. Common methods used for image compression nowadays are based on autoencoders with deep learning foundations. However, these methods have limitations as they only consider residual values in processed images to achieve existing compression efficiency with less satisfying reconstruction results. To address this issue, we introduce the Attention Block mechanism to improve coding efficiency even further. Additionally, we introduce post-filtering methods to enhance the final reconstruction results of images. Experimental results using two datasets, CLIC for training and KODAK for testing, demonstrate that this method outperforms several previous research methods. With an efficiency coding improvement of -28.16%, an average PSNR improvement of 34%, and an MS-SSIM improvement of 8%, the model in this study significantly enhances the rate-distortion (RD) performance compared to previous approaches.
4G Signal Amplifier using 1800 MHz Yagi-Uda Antenna
Authors:   Assistant Professor, Department of ECE Bangalore Institute of Technology,  Bangalore-04, Karnataka, India, S Prof.Jesmitha , L Jagadish ,   Department of ECE, Bangalore Institute of Technology, Bangalore-04, Karnataka, India, HB Janagan ,   Department of ECE, Bangalore Institute of Technology, Bangalore-04, Karnataka, India, BN Jayesh ,   Department of ECE, Bangalore Institute of Technology, Bangalore-04, Karnataka, India, M Keerthana ,   Department of ECE, Bangalore Institute of Technology, Bangalore-04, Karnataka, India
Published: December 2024

The demand for high-speed mobile data access in rural, remote, and urban areas with weak cellular signals has led to the development of effective signal amplification systems. This project presents a 4G signal amplifier designed to enhance cellular signal reception using a Yagi-Uda antenna tuned to the 1800 MHz frequency band, which is widely used for 4G LTE services. The Yagi-Uda antenna is chosen for its high directional gain, compact design, and ability to focus reception in a specific direction, thereby minimizing interference from unwanted signals. The signal received by the antenna is amplified using a low-noise amplifier (LNA) to boost signal strength while maintaining signal integrity. The amplified signal is then relayed to a 4G modem or mobile device, improving data speeds, call quality, and network stability. The system is evaluated based on key parameters such as gain, signal-to-noise ratio (SNR), and coverage improvement. Results demonstrate that the Yagi-Uda antenna significantly enhances the reception of weak 4G signals, making it an effective solution for users in areas with poor network coverage. This project has potential applications in homes, offices, and vehicles, where reliable 4G connectivity is critical.
Influence of changes in plasma lipid components on endothelial regulation of vascular tone and phagocytic activity of neutrophils in children with bronchial asthma
Authors: Liadova T.I. , Volobueva O.V. , Chernusky V.H. , Popov M.M. , Letiaho G.V. , Pavlikova K.V.
Published: December 2024

Background. Bronchial asthma (BA) occupies one of the leading places in the structure of allergic diseases among children of different age groups, distinguished by the variety of clinical manifestations, the complexity of diagnosis, especially in the initial stages of its formation.

Purpose is to determine the effect of changes in the lipid spectrum of blood plasma on endothelial regulation of vascular tone and phagocytic activity of neutrophils in children with asthma.

Materials and Methods. 115 children with asthma aged from 5 to 14 years old were examined (100 patients – the main group and 15 practically healthy – the control group). All children were subjected to electroplethysmographic evaluation of the NO-synthetase activity of the vascular endothelium against the background of basic therapy in accordance with the order of the Ministry of Health of Ukraine No. 25856 in the pulmonology department of the «Children’s Road Clinical Hospital» (Kharkov). The study of the plasma lipid spectrum included the determination of total lipids, LDL (HDL-cholesterol), HDL (HDH-cholesterol), cholesterol, triglycerides (TG) using diagnostic kits of reagents from Termo-electron Corporation (Finland) on an automatic biochemical analyzer «Konelab-30». The level of serum IFN, virus-induced production of IFN-α, mitogen-stimulated production of IFN-g was determined by enzyme immunoassay (ELISA). The phagocytic activity of neutrophils was assessed by their ability to absorb inactivated cells of a one-day culture of staphylococci. Spontaneous and zymosan-induced activity of neutrophils was determined in the chemiluminescence reaction using the Vio-Orbit (Pribiri-Og) chemiluminometer.

Results. In BA in children, after carrying out an electroplethysmographic study of changes in NO-synthetase activity of the vascular endothelium, it was shown that in 80% of children with BA, NO-synthetase activity of endotheliocytes was detected and endothelial dysfunction was diagnosed (р < 0,001), only 20% of children had NO-synthetase activity of the endothelium vessels remained at the level of normal values. Children with asthma with signs of vascular endothelium dysfunction have changes in the lipid spectrum of the blood – a decrease in HDL, an increase in the level of cholesterol and TG, which leads to a violation of effector cells, an increase in cytotoxicity, hyperproduction of cytokines and chemoattractants.

Conclusions. In children with BA, there is a decrease in NO-synthetase activity of the vascular endothelium. An increase in plasma cholesterol, triglycerides and a decrease in HDL leads to a change in the fluidity of effector cell membranes, an increase in pro-inflammatory cytokines, which thus increases the severity of AD in children.
The risk of spreading infectious diseases as a result of the war in Ukraine from 2014 to the present
Authors: Monakova O.S. , Zakharchenko V.S. , Kharkivska D.O.
Published: December 2024

Background. The war in eastern Ukraine that began in 2014 and subsequent military actions, including a full-scale invasion in 2022, have caused disruption of epidemiological systems, significant population displacement, deterioration of living conditions, and destruction of infrastructure and health care facilities. As a result, favorable conditions were created for the spread of infectious diseases among the civilian and military population of Ukraine.

Purpose – the purpose of this article is to identify and analyze the epidemiological features of the spread of infectious diseases among the population in the context of martial law in Ukraine from 2014 to the present. The main factors contributing to the increased risk of infectious diseases and measures that can be taken to minimize it are discussed.

Materials and methods. The analysis is based on open sources of information, reports of international organizations, and research by scientists from Ukraine and abroad. The report uses data on outbreaks of infectious diseases, statistics on visits to medical institutions, and an analysis of the socio-economic impact of the war on the healthcare system. For this purpose, methods of comprehensive epidemiological analysis were used.

Results. It has been established that hostilities have led to an increase in cases of infectious diseases, such as leptospirosis, measles, tuberculosis, HIV, COVID 19 and others. The situation is particularly critical in the temporarily occupied and frontline areas, where access to medical care is limited. Mass migration of the population has worsened the situation with timely vaccination of the population and prevention of infectious diseases.

Conclusions. The war in Ukraine has significantly affected the epidemiological situation in the country. In order to prevent the spread of infectious diseases, joint efforts of governmental and non-profit organizations are needed, as well as access to medical care for all categories of civilian and military population in need, and public awareness campaigns.
AÇÕES DE FORMAÇÃO INICIAL DE PROFESSORES DE MATEMÁTICA NA UNIVERSIDADE FEDERAL DA INTEGRAÇÃO LATINO-AMERICANA
Authors: Kochhann Maria Elizabete Rambo , Almeida Marieli Vanessa Rediske de , Cassiano Clesensia Mesquita
Published: December 2024

Este artigo é fruto de ações de formação inicial desenvolvidas com acadêmicos da Licenciatura em Matemática da Universidade Federal de Integração Latino-Americana (Unila). Dentre os projetos, estão o Programa de Iniciação à Docência (Pibid) e o Programa de Apoio à Vivência de Componentes Curriculares (PVCC). O intento destas ações é oportunizar aos licenciandos a imersão em colégios da rede pública estadual da cidade de Foz do Iguaçu – PR e cidades vizinhas, bem como reflexões sobre o papel do professor e os desafios a serem encontrados na docência. O objetivo da pesquisa foi compreender as possibilidades formativas do Pibid e do PVCC na percepção dos acadêmicos da Licenciatura em Matemática da Unila respondentes do formulário aplicado a eles.  Os dados foram constituídos por meio de questionários online (Google Forms), respondidos por 30 acadêmicos em junho de 2024. Para destacar a diversidade dos acadêmicos, faremos uma descrição de aspectos que dizem respeito aos participantes. O estudo é de cunho qualitativo e interpretativo, pois utilizaremos as respostas dadas pelos participantes ao formulário sobre as percepções que eles possuem sobre o curso e as diferentes atuações nele. Tais percepções foram categorizadas a partir de um processo de análise de conteúdo. Desta análise, emergiram duas categorias, a saber, Trajetória e Motivação na Matemática e Engajamento e Perspectivas Futuras. Conclui-se que as ações formativas em tela são consideradas importantes e benéficas pelos licenciandos, sendo fundamental assegurar, na formação inicial, espaços de vivências da futura profissão docente como uma das formas de incentivo e permanência no curso.
The Analysis of Factors in Children’s Dietary Patterns That Affect Physical Fitness
Authors: Nurmawati Thatit , Rahmawati Anita , Sari Yeni Kartika , Lestari Oni Puji
Published: December 2024

Fitness for children is related to optimal physical condition. Fitness influences mental and social development, especially children's concentration and learning abilities. Fitness must be maintained to support activities. Diet is a supporting factor for children's physical fitness. Diet is the foundation for long-term health. The research aimed to determine factors related to eating patterns that influence children's physical fitness. The research design was cross-sectional. The research population was school children aged 10-12 years totaling 96 students in 2023 using the total sampling method. The independent variables were BMI (Body Massa Index), physical activity, and rest, and the dependent variable was the child's physical fitness. The instrument used the Physical Activity Questionnaire to measure activity, eating patterns using Food Frequency, rest using The Pittsburgh Sleep Quality Index, and physical fitness, calculated using the Technical Guidelines for Health Screening and Periodic Examination of School-Age Children and Adolescents in 2018. The analysis test used linear regression (P<0.05) to determine the relationship between factors related to eating patterns and influencing children's physical fitness. The results of the study showed that there was no relationship between BMI (p 0.661), physical activity (0.783), and rest (p 0.756) on eating patterns. An eating pattern is a significant mediator for physical activity and rest but not for BMI (p 0.733) on children's physical fitness. Rest (p 0.000) and physical activity (p 0.004) influence children's physical fitness. BMI does not measure the position and location of fat, so people with the same BMI have different fitness levels.
Menstrual Disorders of 3-Month Contraceptive Injection Acceptors in Independent Midwife Practice in Binangun District, Blitar Regency
Authors: Monica Laily Prima , Ulfa Maria , Fata Ulfa Husnul
Published: December 2024

The contraceptive injection method using medroxyprogesterone (a type of progestin) which is injected every 3 months has side effects, namely menstrual cycle disorders. The longer the injection is used, the more women do not menstruate and also experience irregular bleeding. This was a descriptive study that aimed to see the menstrual disorders of 3-month contraceptive injection acceptors at the Binangun Midwife Independent Practice, Blitar Regency. The population in this study were active contraceptive injection acceptors who visited the Binangun Midwife Independent Practice, Blitar Regency, with an average population of 87 people. The sample in this study was 3-month contraceptive injection acceptors who met the inclusion and exclusion criteria. The number of samples in this study was 66 people with a purposive sampling technique. The data analysis used frequency distribution to describe menstrual disorders experienced by 3-months Contraceptive Injection acceptors. The results of this study indicated that the menstrual disorders experienced by 3-months contraceptive injection acceptors were mostly amenorrhea, namely 53 people (80.3%). While bleeding outside of menstruation was 10 people (15.2%) and the rest, namely 3 people (4.5%) did not experience menstrual disorders. The 3-months contraceptive injection method has been proven effective in preventing pregnancy, the therapy needs to pay attention to the side effects caused so as not to interfere with the 3-months Contraceptive Injection acceptors.
Promosi Keselamatan dan Kesehatan Kerja dengan Media Video terhadap Peningkatan Pengetahuan dan Sikap Pekerja Sektor Informal di Kota Pontianak
Authors: Katriana Katriana , Suwarni Linda , Selviana Selviana
Published: December 2024

Background: Occupational Health and Safety (K3) risks are higher in the informal sector, including MSMEs. The lack of access to K3 promotion causes the knowledge and attitudes of workers in the informal sector to be inadequate. The aim of this research is to determine the effectiveness of K3 promotion using video media in increasing the knowledge and attitudes of informal sector workers in Pontianak City. Methods: his research is a pre-experimental research with a one group pretest-posttest design approach. The population in this study were all MSMEs in Pontianak City, with a total sample of 31 people (purposive sampling). The time of research implementation was in August 2024. Data were analyzed univariately and bivariately (paired t test with a confidence level of 95%). Results: The average knowledge score before the K3 promotion using video was 7.19, and after it was 9.03 (delta mean knowledge was 1.84). The average attitude score before the K3 promotion using video was 30.32, and after it was 33.19 (delta mean attitude score was 2.87). The results of the paired t test show that there is a significant difference between K3 promotion using video media on increasing knowledge and attitudes (p value < 0.05). Conclusion: Video media on the application of K3 in the home industry is effectively used to increase the knowledge and attitudes of informal sector workers. It is necessary to develop other similar educational video media in the form of video demonstrations, especially regarding ergonomic working positions, and efforts to prevent and improve occupational health and safety.
Hubungan Karakteristik Individu, Safety Sign, Kondisi APD, dan Pengawasan dengan Penggunaan APD Depo Lokomotif Semarang Poncol
Authors: Gardinia Genoveva , Setyaningsih Yuliani , Wahyuni Ida
Published: December 2024

Latar belakang: Pekerja bagian pemeriksaan dan perawatan Depo Lokomotif Semarang Poncol memilki potensi bahaya tinggi karena pada pekerjaannya dituntut untuk berinteraksi langsung dengan sumber bahaya yaitu lokomotif. Alat pelindung diri (APD) wajib digunakan pada saat bekerja sebagai upaya pengendalian potensi bahaya yang diterima oleh pekerja pada saat melakukan pemeriksaan, perawatan, dan perbaikan lokomotif. Tujuan penelitian ini untuk menganalisis hubungan antara karakteristik individu, safety sign, kondisi APD, dan pengawasan dengan penggunaan APD. Metode: Penelitian ini termasuk penelitian kuantitatif dengan desain penelitian cross sectional. Penelitian dilakukan di Depo Lokomotif Semarang Poncol dengan sampel penelitian seluruh pekerja bagian pemeriksaan dan perawatan yang berjumlah 35 orang yang dipilih dengan menggunakan teknik total sampling. Instrumen penelitian menggunakan kuesioner dengan analisis data menggunakan uji Chi-square dan Rank Spearman. Hasil: Analisis data menghasilkan sebagian besar responden berusia dewasa awal sebanyak 88,6% (p=0,635), memiliki tingkat pendidikan SMA/SMK/sederajat sebanyak 82,9% (p=0,211), memiliki masa kerja lama sebanyak 77,1% (p=0,039), memiliki pengetahuan baik sebanyak 88,6% (p=0,008), memiliki sikap baik sebanyak 51,4% (p=0,137), merasa safety sign baik sebanyak 82,9% (p=0,017), merasa kondisi APD baik sebanyak 77,1% (p=0,021), merasa pengawasan baik sebanyak 65,7% (p=0,889), serta penggunaan APD baik sebanyak 60%.. Kesimpulan: Terdapat kesimpulan bahwa adanya hubungan antara masa kerja, pengetahuan, safety sign, dan kondisi APD dengan penggunaan APD. Namun, ditemukan tidak adanya hubungan antara usia, tingkat pendidikan, sikap, dan pengawasan dengan penggunaan APD.
PENGARUH PENERAPAN PROGRAM KESELAMATAN DAN KESEHATAN KERJA (K3) TERHADAP PRODUKTIVITAS KERJA BAGIAN PRODUKSI INDUSTRI FABRIKASI BAJA
Authors: Kusumawardani Ananda Febri , Pasca Budiono Nugrahadi Dwi
Published: December 2024

Latar belakang: Keselamatan dan Kesehatan Kerja (K3) mempunyai peranan penting dalam meningkatkan produktivitas kerja, dengan penerapan program K3 yang efektif, risiko kecelakaan dapat berkurang secara signifikan, dan akan meningkatkan produktivitas pekerja. Penelitian ini bertujuan untuk menganalisis pengaruh penerapan program K3 terhadap prdouktivitas kerja.  Metode: penelitian ini berjenis kuantitatif dengan desain cross sectional. Populasi penelitian sebanyak 50 orang, dengan sampel sebanyak 44 pekerja yang dihitung yang diambil menggunakan teknik simple random sampling, penelitian menggunakan kuesioner. Hasil: Hasil penerapan program Keselamatan dan Kesehatan Kerja (K3) sebanyak 23 pekerja (52%) dengan kategori kurang dan sebanyak 21 pekerja (48%) dengan kategori baik. Hasil univariat dari produktivitas kerja sebanyak sebanyak 23 pekerja (52%) dengan kategori kurang dan sebanyak 21 pekerja (48%) dengan kategori baik. Analisis data uji validitas menunjukkan hasil yang valid sebesar (0,2973), uji reabilitas (>0,60), uji regresi logistik sederhana, menunjukkan hasil bahwa nilai p-value 0,004 yang H0 ditolak dan H1 diterima. Kesimpulan: Terdapat pengaruh yang signifikan antara penerapan program Keselamatan dan Kesehatan Kerja (K3) terhadap produktivitas kerja dengan p-value 0,004.
PENGARUH QUALITY WORK LIFE TERHADAP PRODUKTIVITAS KARYAWAN DI RUMAH SAKIT
Authors: Pamungkas Agung Wahyu , Mindiharto Sestiono
Published: December 2024

Penelitian ini ingin menelusuri bagaimana Quality of WorkLife (QWL) memengaruhi tingkat produktivitas karyawan di Rumah Sakit X. Dengankompleksitas dan tingginya tekanan dalam pekerjaan di sektor kesehatan, sangatlahvital untuk menjaga semangat dan kesejahteraan para tenaga kerja. metodepenelitian kuantitatif dengan desain analitik observasional, pendekatan crosssectional di Rumah Sakit X, Populasi karywan Perawat Rumah Sakit X berjumlah233, pengambilan sampling menggunakan metode random sampling denganperhitungan slovin 75 sebagai sampel penelitian. Variabel independent QWL danvariabel dependent Produktivitas Karyawaan. Instrumen yang menggunakan lembarkuesioner QWL dan Produktivitas. Analisa data meliputi analisis univariat, bivariatmengunakan Uji Regrensi Liner. Hasil: Hasil analisis menunjukkan bahwakaryawan dibagian perawat adalah berjenis kelamin Perempuan sebesar (98.7%),total keseluruhan pekerja didapatkan rentan usia, paling banyak pekerja berusia >50tahun dengan presentase (77.3%). Analisis data uji regresi linier, menunjukkan hasilbahwa nilai p-value pada variabel QWL menunjukkan angka sebesar 0,001 yangberarti kurang dari 0,05. Kesimpulan: penelitisn dilakukan terhadap karyawandibagian perawat di rumah sakit X dibidang perawat menyatakan terdapat pengaruhyang signifikan antara QWL terhadap produktivitas karyawan.
Hubungan antara Intensitas Kebisingan dengan Kejadian Hipertensi pada Pekerja di Stasiun Semarang Tawang
Authors: Az-zahro Putri Rahmawati , Setiani Onny , Darundiati Yusniar Hanani
Published: December 2024

Latar belakang: Kebisingan di stasiun berasal dari padatnya lalu lintas kereta api yang beroperasi selama 24 jam yang mengganggu lingkungan. Dampak dari kebisingan kereta api terjadinya gangguan fisiologis, salah satunya yaitu hipertensi. Tujuannya ialah melihat hubungan intensitas kebisingan di stasiun dengan hipertensi pada pekerja. Metode: Menggunakan metode observasional analitik dan pendekatan cross sectional metode analisis kuantitatif. Populasi penelitian berjumlah 128 pekerja di Stasiun Semarang Tawang. Pengambilan sampel metode purposive sampling dan menggunakan rumus lameshow yang dengan jumlah sampel 100 pekerja. Analisis bivariat dengan uji chi square (α < 0,05) untuk menguji hubungan variabel. Hasil: Responden rata-rata berusia 41 tahun yang didominansi laki – laki (70%) dan mempunyai masa kerja ≥5 tahun (87%). Hasil pengukuran intensitas kebisingan tertinggi 94 dB(A), terendah 80 dB(A) dan rata – rata 85,5 dB(A) dengan NAB kebisingan 85 dB(A). Hasil tabulasi silang di dapatkan sebanyak 40 responden (40%) mengalami hipertensi. Rata-rata sistolik di dapatkan 127,95 mmHg dan diastolik di dapatkan rata – rata 81,94 mmHg. Hasil uji statistik mendapatkan p-value intensitas kebisingan dengan hipertensi yaitu 0,001 nilai RP = 4,104 dan 95% CI (1,897 – 8,878) yang menunjukkan hubungan bermakna antara intensitas kebisingan dengan hipertensi. Kesimpulan: Kesimpulan penelitian yaitu ada hubungan terkait intensitas kebisingan dengan hipertensi.
Implied Relevance in Panji Gumilang's Violation of Maxim Relevance in Kick Andy Interview: A Cognitive Pragmatics Study
Authors: Panji Artha Nur Restia , Lukman Fahmy , Ardiati Riza Lupi
Published: December 2024

Panji Gumilang and his educational institution, Al-Zaitun, have been the subject of much discussion in the last few months because of their heresy case. In the interview on the Kick Andy Talk Show, many of his utterances were not contextualised with the interviewer's questions. This research aims to analyse the meaning of ‘convoluted’ Impliedature contained in the Violation of Cooperation Principle Maxim Relevance of Panji Gumilang's speech in Kick Andy interview based on Grice Theory and Relevance Theory. The research data is in the form of pieces of AS Panji Gumilang's speech that are irrelevant to Andy's questions so that they imply implicature meaning. The research data were collected through observation technique and documentation technique. While the data source of this research is obtained through the video interview of the Kick andy television program on the Metro TV youtube channel entitled ‘Gonjang-Ganjing Al-Zaitun’ uploaded on 6 June 2023. The method of data analysis in this study applies the pragmatic commensurate analysis method with the basic technique of sorting out the determining elements and the advanced technique of comparative equating. The data presentation method is done descriptively with the help of infromal words. The result of this research shows that Panji's violation of maxim of relevance represents the intention or information that he wants to avoid and hide against the question from the interviewer Andy F Noya. The hidden information of Panji's speech is analysed through the premises of implicature in the process of interpreting the relevance of the conversation based on the knowledge and cognition experience between the two members of the conversation.
MENÂKIBÜ’Ş-ŞÂFİÎ LİTERATÜRÜ BAĞLAMINDA İBN HACER’İN İMÂM ŞÂFİÎ SAVUNUSU
Authors: Kanarya Bayram
Published: December 2024

Hadis, usûl ve fıkıh disiplinlerinde iz bırakan alimlerden biri İmâm Şâfiî’dir. Onun eserleri ve ortaya koyduğu metodoloji, birçok ilim adamının dikkatini çekmiştir. Onunla ilgili yapılan çalışmalardan biri hayatı, talebeleri, eserleri, ahlaki özellikleri, münazaraları, edebi zevki gibi konuları ihtiva eden Menâkıbü’ş-Şâfiî türü eserlerdir. Ağırlıklı olarak biyografik malumatın zikredildiği bazen yeni bir tertip ile farklı asırlarda telif edilen Menâkıbu’ş-Şâfiî türü eserler, müstakil bir literatürün ortaya çıkmasına vesile olmuştur. İmâm Şâfiî’nin menâkıbı ile ilgili eser yazanlardan biri, Şâfiî mezhebine müntesip ve eserleri ile karizmatik bir hüviyet kazanan İbn Hacer’dir. Bu çalışmada ibn Hacer’in İmâm Şâfiî’nin menakıbını ele aldığı Tevâli’t-Te’sîs adlı eseri konu edilmiş, kapsam ve sınırlılık itibarı ile bu çerçevede kalınmaya çalışılmıştır. İbn Hacer’in bu eserinin tahliline geçmeden önce menâkıb literatürünün gelişimi ve Şâfiî merkezli menâkıb edebiyatı hakkında bazı bilgiler verilmiştir. Daha sonra Tevâli’t-Te’sîs’in metodoljisi, kaynakları ve muhtevası irdelenmiştir.
İbn Hacer’in üzerinde durduğu konulardan biri İmâm Şâfiî ve hadis rivayeti meselesidir. Eserinde bu konuya dair müstakil bir bölüm açan İbn Hacer, Şâfiî’nin isnad zincirinde yer aldığı ve hadis alimleri tarafından sahih kabul edilen yetmiş yedi rivayete yer vermiş, kitabın hacmini arttıracağı endişesiyle diğer rivayetlere yer vermemiştir. İbn Hacer bununla İmâm Şâfiî’nin hadis rivayet mekanizmasında yer aldığını, naklettiği rivayetlerin aynı metinlerle muteber hadis kaynaklarında da geçtiğini ispat etmeye çalışmış ve onu savunmuştur.
KUR’AN’DA TEVRİYE TARTIŞMALARI: KLASİK VE ÇAĞDAŞ YAKLAŞIMLARA KARŞILAŞTIRMALI BİR ANALİZ
Authors: Tarı Nihat
Published: December 2024

Bu çalışma, Kur'an-ı Kerim'de tevriye sanatının kullanımı üzerine süregelen tartışmaları detaylı bir şekilde incelemektedir. Tevriye, Arap edebiyatında önemli bir yere sahip olan ve bir kelimenin hem yakın hem de uzak anlamlarını ustaca kullanarak metne çok boyutlu bir derinlik katan edebi bir sanattır. Bu sanatın kullanımı, metne zenginlik katarken aynı zamanda okuyucuyu daha derin düşünmeye ve anlamın farklı katmanlarını keşfetmeye teşvik eder. Araştırma, tevriyenin Kur’an’daki varlığına dair klasik ve çağdaş yaklaşımları karşılaştırmalı olarak ele almaktadır. Klasik dönemde Sekkâkî, Kazvînî ve Suyûtî gibi alimler tevriyenin Kur’an’da var olduğunu savunurken, Teftâzânî gibi bazı alimler buna karşı çıkmıştır. Günümüzde de bu tartışma canlılığını korumaktadır. Muhammed Cabir el-Feyyâz gibi çağdaş araştırmacılar, Kur'an'ın evrensel mesajının doğrudan iletilmesi gerektiği düşüncesiyle tevriyenin Kur'an'da bulunmadığını ileri sürmektedirler. Çalışma, bu farklı görüşlerin temelinde tevriye sanatının doğası ve işlevi hakkındaki farklı anlayışların yattığını ortaya koymaktadır. Sonuç olarak, bu akademik tartışmaların Kur'an'ın edebi inceliklerini anlamak ve ilahi mesajın çok katmanlı yapısını keşfetmek açısından büyük önem taşıdığı vurgulanmaktadır. Bu tartışmalar, Kur'an tefsiri ve anlama yöntemlerine yeni bakış açıları kazandırarak İslami ilimlerin gelişimine katkıda bulunmaktadır.
DAMPAK PANDEMI COVID-19 TERHADAP KARAKTERISTIK FUNGSI HAMBATAN PERJALANAN MENUJU KAWASAN PENDIDIKAN
Authors: Guntur Ristiyanto Hartono , Supranoto Bambang
Published: December 2024

Analisis fungsi hambatan dibutuhkan untuk mengestimasi model distribusi perjalanan. Penentuan fungsi yang universal dibutuhkan untuk meningkatkan efisiensi pemodelan sehingga memungkinkan kita mengurangi ambiguitas matriks asal-tujuan. Bentuk fungsi yang mencerminkan kondisi eksisting (misal : adanya pengaruh pandemi) perlu dirumuskan dengan benar sehingga bisa digunakan untuk mengkalibrasi matriks asal-tujuan perjalanan dengan akurat sebagai dasar prediksi volume perjalanan. Berdasarkan hal tersebut, maka rumusan masalah penelitian ini adalah : bagaimana karakteristik fungsi hambatan perjalanan menuju kawasan pendidikan akibat adanya pandemi Covid-19 ? Tujuan utama penelitian untuk menemukan koefisien fungsi hambatan perjalanan yang sesuai akibat dari dampak pandemi. Analisis regresi fungsi hambatan dilakukan dengan bahasa pemrogaman Microsoft Excel dan SPSS for Windows. Variabel terikat adalah jumlah perjalanan. Sedangkan variabel bebas adalah jarak tempuh dari asal ke tujuan sekolah. Fungsi hambatan menggunakan bentuk fungsi : pangkat, eksponensial, dan kombinasi (Tanner). Hasil analisis menunjukkan bahwa pandemi mengakibatkan terjadinya perubahan pola sebaran panjang perjalanan. Nilai koefisien fungsi hambatan berubah secara signifikan akibat pengaruh pandemi. Tetapi, bentuk kurva sebaran panjang perjalanan cenderung mempunyai bentuk yang sama sebelum pandemi maupun saat pandemi. Sedangkan bentuk fungsi terbaik yang bisa menjelaskan pola sebaran perjalanan sebelum pandemi dan saat pandemi adalah jenis fungsi gabungan atau fungsi Tanner.