bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Effect of Employee Income on Absence from Work Due to Illness
Authors: Beran Vlastimil 
Published: January 2025

Abstract
Illness, or the medical treatment of a family member, comprises an inherent part of human life, the occurrence of which often prevents employees from attending work. This article analyses the relationship between absence from work due to illness and the amount of an individual’s income. The article further monitors the impact of the Covid-19 disease and whether it affected absence from work. In theory, it can be assumed that persons with lower incomes have higher absence rates. The data, which was analysed for the period 2014–2022, was provided by the Ministry of Labour and Social Affairs of the Czech Republic. Basic descriptive statistics and methods of structural breaks were applied to determine the underlying trends. It is possible to state that absenteeism decreases from the 6th decile and is lowest in the highest decile of the working population. Covid-19 was found to have significantly affected employee absenteeism.
The early limnological tradition as an ecological resource: a historical account between Europe and the United States of America on the concept of the organism-environment relationship
Authors: Pireddu Pier Luigi 
Published: January 2025

Abstract
This paper proposes that lake ecosystems have historically provided fertile ground for the advancement of ecological concepts. It argues that foundational ecological ideas, such as ecosystems and the organism-environment relationship, have their roots in limnology, the scientific study of lakes. In other words, these concepts were developed by approaching lake ecosystems as primitive ecological models. To illustrate this point, it examines the scientific endeavors of François Forel (1841-1912) in Geneva, Switzerland, and Stephen Forbes (1844-1930) in Illinois and Wisconsin, United States. Both were pioneering figures for the development of the limnological or, even more broadly, the ecological discipline. Curiously, they contemporaneously developed their respective scientific accounts in two different scientific traditions.
Provoking and Foreseeing Sudden Changes in the Workability of Pumped Concrete
Authors: Mortensvik Øystein , Thorstensen Rein Terje 
Published: January 2025

Abstract
It was attempted to provoke and foresee sudden loss of workability during concrete pumping through a series of full-scale tests. Batches of 2 m3 concrete were produced at a ready-mix plant, transported by concrete trucks and pumped by industrial pumps, to reveal sudden loss of workability. Different mix designs, extension hoses and pump setups were utilised in a six series experiment. An experimental procedure for measuring loss of workability at a laboratory scale was developed due to the standardised procedures for slump measurements camouflaging loss of workability. The experiments revealed that pumping through a boom seems to have a positive effect by reducing probability of sudden loss of workability. Furthermore, the fine aggregate seems to have a strong influence on the phenomenon, especially in the range of 0.25 mm to 1 mm.
Effect of Slag Content and Carbonation/Ageing on Freeze-Thaw Resistance of Concrete
Authors: Iqbal Ahsan , Ojala Teemu , Al-Neshawy Fahim , Punkki Jouni 
Published: January 2025

Abstract
The construction industry is pursuing the reduction of CO2 emissions and the development of lowcarbon concrete. LOIKKA research project was initiated in Finland with the aim to reduce the CO2 emissions of concrete manufacturing by 50%. The use of blast furnace slag was seen as the most competitive way to significantly reduce CO2 emissions of concrete. However, incorporating slag in concrete can lead to durability complications, particularly concerning salt freeze-thaw resistance. This study investigates the effects of slag content, carbonation/ageing, and pre-curing conditions on the freeze-thaw and salt freeze-thaw resistance of concrete. Additionally, it evaluates the compressive strength development and porosity differences of test concretes. Slab tests were conducted to determine the surface scaling and internal damage resistance of concrete specimens. The results showed that high slag content and carbonation reduced salt freeze-thaw resistance. The incorporation of 50% slag content as the cement clinker replacement is considered critical. An increase in slag content led to a decrease in the compressive strength at 7 days due to the low reactivity of slag but achieved the highest compressive strength at 91 days with 70% slag content. These insights contribute to our understanding of the durability properties of concrete incorporating slag.
Automatic Measurement Techniques for Compositional Properties of Fresh Concrete: Focus on Water/Cement Ratio and Air Content
Authors: Ojala Teemu , Punkki Jouni 
Published: January 2025

Abstract
Current testing methods for fresh concrete are time-consuming and operator-dependent and, thus, should be replaced with automatic testing methods. This study investigated automated measurement techniques for determining water/cement (w/c) ratio and air content in fresh concrete, addressing this need for more efficient and continuous quality control. The research compared microwave absorption (MWA) and time-domain reflectometry (TDR) techniques for w/c ratio measurement as well as acoustic wave propagation (AWP) technique for air content measurement, against the reference testing methods. Laboratory investigations were conducted on various concrete mix compositions. Results showed that MWA and TDR techniques demonstrated a good correlation with reference methods for w/c ratio (R&sup2; = 0.808 and 0.858, respectively), but were sensitive to air content variations. The AWP technique for air content measurement showed a moderate correlation with the pressure method (R&sup2; = 0.654 for static measurements), with accuracy influenced by concrete consistency. The study highlights the potential of these automated techniques for real-time concrete quality control, while also revealing limitations related to mix composition variations and calibration requirements. These findings contribute to the ongoing development of more precise and reliable automated measurement systems for fresh concrete properties, supporting the move towards advanced quality control methods.
The War in Ukraine on the Pages of Polish Weekly Opinion-Forming Magazines
Authors: Kaczmarek-Śliwińska Monika , Ossowski Szymon 
Published: January 2025

Abstract
The conflict and relations between Poland and Ukraine are an important aspect of the geopolitical reality of Central and Eastern Europe. In the context of changing political, economic and social dynamics, the media play a key role in shaping public opinion and reporting on events between these two countries. In the article, we will analyse the role of the media in the context of the political and economic relations between Poland and Ukraine, following Russia’s invasion of Ukraine. We will focus on how the Polish media present the conflict, and its impact on cooperation and interactions between the two countries. The article will also present the potential impact the media representation of the conflict may have on international relations, including diplomacy, economic cooperation and regional integration. By analysing this issue, we will try to determine the role of the media as a factor influencing the perception and understanding of the relationship between Poland and Ukraine and the need for a critical approach to media narratives in the context of building common understanding and cooperation between the two countries. The content analysis will cover selected issues of weekly magazines representing various sides of the political scene: Polityka, Newsweek and Sieci.
PENDIDIKAN KARAKTER ANAK DI ERA DIGITAL
Authors: Annisa Anni , Puniman Ach. , Yudiati Rini , Rizqi Hanifatur 
Published: January 2025

Era digital memberikan dampak positif dan negatif terhadap perkembangan nilai karakter anak usia dini. Pembinaan budi pekerti, akhlak termuat dalam UUD Republik Indonesia. Tujuan pendidikan karakter adalah untuk mengembangkan kemampuan dan potensi peserta didik dalam memelihara nilai-nilai yang baik. Oleh karena itu perlu dilakukan sosialisasi pentingnya pendidikan karakter bagi anak usia dini di era digital. Tujuan kegiatan ini adalah untuk menyosialisasikan pentingnya Pendidikan karakteranak usia dini di era digital. Sosialisasi ini bekerjasa dengan PKK desa Patean dan kelompok pengajian Muslimat Ranting Desa Patean. Metode pengabdian yang dipergunakan yaitu Service Learning dengan cara ceramah dan tanya jawab. Prosesnya dilakukan dengan pemetaan masalah, persiapan, implementasi, dan evaluasi. Sebanyak 130 peserta mengikuti kegiatan tersebut. Orang tua memahami peran yang dapat dimainkan dalam keluarga untuk mengembangkan pendidikan karakter pada anak usia dini. Sosialisasi ini diharapkan orangtua memiliki kebaruan pengetahuan mengenai Pendidikan karakter untuk anak usia dini, khususnya ikut terlibat dalam penanaman Pendidikan karakter pada anak di rumah, karena selama ini gurulah yang dituntut dalam mengajarkan Pendidikan karakter di sekolah.
التدابير اللازمة لدرء خطر الفيضانات في المراكز الحضرية بحوض وادي إيناون بالمغرب: دراسة تطبيقية
Authors: نظامة علي , البزوي جواد , بوبرية عبدالواحد 
Published: January 2025

تحظى الدراسات الهيدرولوجية بمكانة متميزة جدا في الدراسات الجغرافية وذلك لانعكاساتها على كافة اصعدة الحياة فقد يكون هذا التأثير سلبا او ايجابا وتأتي مخاطر الفيضان على المراكز الحضرية في مقدمة هذه التأثيرات السلبية فهي تنعكس بشكل مباشر على الانسان وتهدد حياته لذا فإن اتخاذ التدابير اللازمة إحدى المواضيع الهامة الجديرة بالاهتمام ضمن مخططات التهيئة وسياسة إعداد التراب على المستوى الوطني والمحلى. فخطر الفيضان يندرج ضمن الأخطار البيئية الكبرى، التي تهدد المجالات الحضرية. وتفرض ضرورة وضع مخططات واستراتيجيات تمكن من الوقاية من الأخطار الهيدرولوجية وحماية السكان وممتلكاتهم. يشكل منخفض حوض إيناون إحدى المجالات المغربية المهددة بخطر الفيضان في عدد من المواقع، نظرا لخصوصياته المناخية المتميزة بغزارة التساقطات وتركزها في أحيان كثيرة، وأيضا بتمركز جل المراكز الحضرية على ضفاف الأودية، أو يتم اختراقها من طرف مجموعة من مجموعة من الشعاب التي تتغدى من السفوح والمرتفعات المجاورة، الشيء الذي يجعلها معرضة باستمرار لخطر الفيضانات خاصة مع زيادة التوسع العمراني الغير المراقب الذي حصل في السنوات الماضية. مما يزيد الظاهرة استفحالا في ظل غياب حلول تقنية كفيلة بالوقاية من الأخطار الهيدرولوجية. كما أن وقوع هذه الكوارث يتطلب رصد ميزانيات مالية ضخمة وغير متوقعة، ويساهم حدوثها في خلق أزمات اجتماعية ونفسية، كما تتطلب من السلطات المختصة تخصيص مساعدات للمناطق المنكوبة. لكل هذه الاعتبارات، ارتأينا معالجة موضوع خطر الفيضانات وأساليب التدبير بالمراكز الحضرية بمنخفض حوض إيناون، وتناولنا الموضوع تبعا للعوامل المساهمة في تشكل الفيضانات بهذا المجال، والتدابير المتخذة لحماية هذه المراكز من مخاطرها.
Analysis of the accuracy of radar tracking of unresolved by coordinates targets
Authors: Artemiev V. M. , Kostromitsky S. M. , Naumov A. O. 
Published: January 2025

During radar tracking often a situation arises when two targets are unresolved in one or more coordinates. The aim of this work is to develop an analytical technique for analyzing the accuracy of tracking of unresolved targets using methods of statistical linearization and integration of equations of probabilistic moments. Initially, the problem of analyzing the accuracy of tracking a single target is solved, and then the problem of tracking of two targets which are unresolved in one of the coordinates. A technique for analyzing the accuracy of radar tracking of two unresolved targets, the signals of which are within the width of the discriminatory characteristic is proposed. The nonlinear nature of the problem is caused by the need to take into account the form of this discriminatory characteristic. When developing the technique, the method of statistical linearization of nonlinear functions and the method of integrating equations of probabilistic moments were used.Mathematical simulation of a single target tracking system and a tracking system for two unresolved targets was carried out. The accuracy of the technique was assessed by comparing the results of calculating means and variances of tracking errors using Monte Carlo method with the results of analytical calculations. The obtained results can be used to solve problems such as tracking a paired target, handling crossing trajectories, tracking in conditions of radar jamming, etc.
Improving the operating characteristics of aluminium by electroplastic deformation
Authors: Savenko V. S. , Yangzi Ch. 
Published: January 2025

The article presents the results of theoretical and experimental studies of electroplastic deformation by drawing (EPD) of electrical aluminum on an industrial multi-pass mill. The influence of a pulsed current with a density of ~ 103 A/mm2 and a duration of ~10–4 s on the implementation of EPT in a deformation unit loaded above the yield limit, under conditions of excitation of the electronic subsystem of the metal, is considered, and the fundamental possibility of programmed control of deformation processes for modifying the physical and mechanical properties of technically important materials is shown. It was revealed that under conditions of electroplasticity, due to ponderomotive effects in the deformation zone, with the periodicity of current pulses at the front of their increase, ultrasonic vibration is created, causing additional mechanical stresses of the crystal lattice skeleton and actively influencing the kinetics of plastic deformation with improving the service characteristics of the material. The areas of technological application of EPV are drawing of ultra-fine, thin wire (up to ~ 1 mm in diameter), rolling of thin sheets, drawing and stamping of material. The installed technologies correspond to the most widespread production in the metalworking industry.
PHYLOGENETIC ANALYSIS OF AEDES AEGYPTI IN TAIF AND JEDDAH GOVERNORATES, SAUDI ARABIA
Authors: AL-OTAIBI WAFA MOHAMMED , ALGETHAMI RAED HAMOUD M. , HUSSIEN NAHED AHMED , MAHYOUB JAZEM A. 
Published: January 2025

ABSTRACT
With their diverse species, mosquitoes are known to transmit the causal agents of diseases such as malaria, dengue, and yellow fever. Their high adaptability, attraction to humans, and variable adult behaviors make them a significant health concern. The focus on Aedes aegypti is significant for reducing vector-human contacts, monitoring insecticide resistance, and developing innovative vector management strategies. Given the scarcity of studies on Ae. aegypti in the western region of Saudi Arabia, this research is a significant step forward. The study aims to analyze the genetic variations and conduct a phylogenetic study of forty Ae. aegypti samples collected from Taif and Jeddah governorates of Saudi Arabia. The mitochondrial cytochrome c oxidase subunit I (COI) locus was targeted for genetic variance and phylogenetic analysis. Sequences of COI of Ae. aegypti isolates were submitted to the DNA Data Bank of Japan (DDBJ) and National Center for Biotechnology Information (NCBI) Genbank and compared with other global Aedes species isolates. The phylogenetic analysis shows that Ae. aegypti samples from Jeddah have identities ranging from 96.9% to 99.8%, closely related to the Peru (MN299016) and Cambodia (MN299014) isolates. Taif isolates have genetic similarities ranging from 97.5% to 99.8%, closely related to the Germany (KY022526) isolate. Sequence alignment and pairwise comparison show variation among the populations of Ae. aegypti from Taif and Jeddah regions (74.24–98.84%) with a genetic divergence distance of 0.008–0.12. In comparison, ranges slightly change with other Ae. aegypti (79.92–95.96%, 0.008–0.01) as well as Ae. albopictus populations (74.13–83.58%, 0.13–0.20) found in the Genbank database. According to our findings, the present study provides information for a local variation of Ae. aegypti in the western region of Saudi Arabia that could help in disease mapping and risk mitigation, thereby enhancing our ability to manage disease vectors effectively.
Occurrence Of Limatus Durhamii In Artificial Containers In Atlantic Forest, São Paulo, Brazil
Authors: Barrio-Nuevo Karolina Morales , Medeiros-Sousa Antonio Ralph , Evangelista Eduardo , Ceretti-Junior Walter , Fernandes Aristides , Bicudo DE Paula Marcia , Marrelli Mauro Toledo , Oliveira-Christe Rafael 
Published: January 2025

Limatus durhamii
has wild habits with ecological plasticity in anthropized environments. We report the occurrence of this species in several types of artificial containers in 2 fragments of the Atlantic Forest in the city of São Paulo, Brazil. A total of 1,428 larvae were collected, in which plastic containers had the highest abundance of immature forms of Li. durhamii, with 579 (40.5%) specimens collected, followed by glass bottles with 464 (32.5%) and metal cans with 223 (15.6%). The high abundance of Li. durhamii in artificial containers points to an adaptation process to impacted environments. Therefore, studies that investigate the feeding habits and vectorial capacity of this species are essential to understanding its epidemiological role in the environment.
NEW OCCURRENCES OF PHYTOTELMATA-INHABITING MOSQUITOES SPECIES IN NORTHWESTERN ARGENTINA
Authors: FLORES GABRIELA C. , COELLO PERALTA ROBERTO D. , LEÓN RENATO , DUQUE PAUL L. , MOLINA GUSTAVO , LIRIA-SALAZAR JONATHAN , CAMPOS RAÚL E. , DANTUR JURI MARÍA J. 
Published: January 2025

ABSTRACT
The potential risk areas for emerging or reemerging diseases are determined by the presence, abundance, and distribution of mosquitoes. Here new records and geographical distribution extension of mosquito species in phytotelmata are updated for Argentina. We report for the first time Toxorhynchites bambusicola in Aechmea distichantha in Salta and Tucumán provinces, in the northwest region of Argentina. We also report Anophelesargyritarsis in A. distichantha in Salta province. Culexcoronator, Cx. fernandezi, and Cx.hepperi are reported for the first time from Vriesea friburgensis, a new phytotelma from the northwest region of Tucumán province, Argentina. These findings confirm the need for continued research on mosquito-plant relationships to better understand this complex ecological network and the epidemiological importance of phytotelmata-breeding mosquito species.
تأثير اسلوب تدريبات نوعية بالتثقيل في بعض انواع القوة العضلية الخاصة لدى لاعبي بناء الأجسام المتقدمين
Authors: علي صفاء 
Published: January 2025

تتجلى اهمية البحث في الارتقاء بمستوى القوة العضلية للاعبي بناء الاجسام وفق التدريب الصحيح وهو التدريبات النوعية بالتثقيل المناسب مما يعطي نتائج افضل وتحقيق الدرجات المطلوبة في المسابقات الرياضية .وكانت مشكلة البحث التدريب في بعض الالعاب الفردية ومنها بناء الاجسام تتطلب تدريب صحيح ويتمشى مع خصوصية اللعبة والجانب البدني الذي تتطلبه اللعب ولهذا فان تدريب القوة وبالتثقيل لابد ما يؤدى في نفس مسار الحركة للعضلات العاملة . وتضمن هدف البحث: التعرف على تأثير التدريبات النوعية بالتثقيل في بعض انواع القوة العضلية الخاصة لدى لاعبي بناء الأجسام المتقدمين . وكانت اهم الاستنتاجات:- اسلوب التدريبي المستخدم التدريبات النوعية بالتثقيل ساعدت في تطوير بعض انواع القوة العضلية الخاصة للاعبي بناء الأجسام المتقدمين. وعليه تم التوصية: اعتماد اسلوب التدريبي المستخدم التدريبات النوعية بالتثقيل كونه ساعد في تطوير بعض انواع القوة العضلية الخاصة للاعبي بناء الأجسام المتقدمين
تأثير التدريب على الرمال في تطوير تحمل السرعة لدى لاعبي كرة اليد المتقدمين
Authors: الشمري حيدر غازي عزيز 
Published: January 2025

تكمن اهمية البحث في التدريب الرمال لتطوير تحمل السرعة للاعبي كرة اليد للمتقدمين كما ان هناك قدرات بدنية مهمة والتي من خلالها يمكن اداء العديد من المهارات الخاصة بالعبة كرة اليد وبالخصوص تحمل السرعة لان لعبة كرة اليد اغلب مهاراتها تتطلب سرعات عالية جدا وبشكل متكرر كي يستطع اللاعب الاستمرار بالأداء بسرعة عالية ولأطول فترة ممكنة اما مشكلة البحث تعد السرعة من اهم القدرات البدنية التي يحتاجها لاعبو كرة اليد في الوقت الحاضر لان جميع مهارات كرة اليد يجب ان تؤدى بشكل سريع ولأطول فترة ممكنة خلال زمن المباراة ونلاحظ ان هناك العديد من المباريات لا يمكن الفوز بها لان هناك خلل في الجوانب البدنية ومنها تحمل السرعة لذا ارتأى الباحث دراسة هذه المشكلة وبيان اهميتها في لعبة كرة اليد اما اهداف البحث فهي اعداد تمرينات على الرمال في تطوير تحمل السرعة لدى لاعبي كرة اليد المتقدمين والتعرف تأثير التمرينات على الرمال في تطوير تحمل السرعة لدى لاعبي كرة اليد المتقدمين اما فرضية البحث فهو هناك فروق ذات دلالة احصائية ما بين الاختبارين القبلي والبعدي لعينة البحث وقد استخدم الباحث المنهج التجريبي ذو المجوعة الواحدة ذات الاختبارين القبلي والبعدي وتمت معالجة النتائج احصائيا وتم عرض ومناقشة النتائج وكانت اهم الاستنتاجات هي حققت التمرينات على الرمال التي نفذتها المجموعة التجريبية تطوراً في ( ,تحمل السرعة ) لدى اللاعبين اما اهم التوصيات هي استخدام التمرينات على الارض الرملية من قبل المدربين لتطوير تحمل السرعة.
Pemberdayaan Masyarakat Bagi Kader Lansia Dalam Penguatan Ems (Emergency Medical System) Psc (Public Safety Center) 119 Dalam Peningkatan Manajemen Prehospital Pasien Stroke Di Desa Karangsoko Di Wilayah Kerja Puskesmas Trenggalek Kabupaten Trenggalek
Authors: Yuswantoro Edi , Ixora Ixora , Christiani Mimik 
Published: January 2025

Penyakit stroke (Cerebrovascular Accident) merupakan penyebab utama kematian nomor dua dan penyebab kecacatan ketiga di dunia. Meningkatnya angka kematian dan kecacatan disebabkan keterlambatan penatalaksanaan stroke karena pra hospital delay. Hasil penelitian menunjukan waktu awal serangan stroke sampai kunjungan ke rumah sakit merupakan konstributor terbesar penyebab keterlambatan pengobatan stroke sejak awal serangan. Studi pendahuluan yang dilakukan di puskesmas Trenggalek pada tahun 2020 menunjukan angka kejadian stroke di wilayah kerja puskesmas Trenggalek cenderung meningkat dari 131 kasus pada tahun 2020 menjadi 143kasus dan 51 kasus (36%) berasal dari desa karangsoko. Angka kejadian hipertensi desa karangsoko menduduki angka tertinggi 335 kasus (30%) dari 1.136 kasus. Data kejadian hipertensi ini menunjukkan warga beresiko terkena stroke, Hipertensi merupakan faktor resiko yang paling utama dan konsisten. Pengenalan stroke dan pengaktifan Emergency Medical System (EMS) melalui Detection, Dispatch dan Delivery untuk penatalaksanaan stroke pre hospital diharapkan menurunkan angka kecacatan dan kematian akibat serangan stroke karena pre hospital delay. Emergency Medical System (Public Safety Center/PSC) merupakan bagian utama dalam SPGDT yang melayanan koordinasi dan pelayanan kegawatdaruratan yang berkedudukan di tingkat kota/ kabupaten. Berdasarkan uraian tersebut, maka perlunya dilaksanakan pengabdian masyarakat tentang Penguatan EMS (Emergency Medical System) PSC (Public Safety Center) 119 Dalam Peningkatan Manajemen Pre Hospital Pasien Stroke Di Desa Karangsoko Di Wilayah Kerja Puskesmas Trenggalek Kabupaten Trenggalek.