bluuebunny/crossref_metadata_2025 huggingface dataset:
Recursos Didáticos-Tecnológicos como Estratégia de Ensino no Curso de Ciências Contábeis em meio à Pandemia COVID-19
Authors: Carvalho Lopes Cristiano , Costa Quintana Alexandre , Gularte Quintana Cristiane
Published: December 2024

Este estudo objetivou identificar quais recursos didáticos-tecnológicos são usados como estratégia de ensino nas disciplinas oferecidas por um curso de Ciências Contábeis em uma universidade federal. Uma pesquisa descritiva, com abordagem quantitativa, e uma análise documental foi realizada. A amostra do estudo é composta por 32 planos de ensino da grade curricular do curso, elaborados especificamente para o calendário emergencial, período de pandemia da COVID-19. Para a análise dos dados e posterior apresentação dos resultados, foi utilizada a estatística descritiva com a aplicação de frequência relativa. Os resultados evidenciaram que os recursos mais empregados no curso de Ciências Contábeis analisado foram o ambiente virtual de aprendizagem (AVA Moodle) e o sistema de conferência web (Mconf) caracterizados como plataformas educacionais. Os demais recursos utilizados foram aplicativos, apostilas, e-books, Microsoft Excel, fóruns e /ou chats, podcasts, quizzes, slides, softwares, vídeos e videoaulas. Pôde-se constatar, também, que todas as disciplinas utilizaram ao menos dois recursos tecnológicos dos citados anteriormente. Os resultados do estudo, também, indicaram que os professores com doutorado fizeram mais uso de estratégias tecnológicas, além de estas serem as mais contemporâneas. Contatou-se que existe uma relevância dos recursos didáticos-tecnológicos como requisitos importantes para que estudantes desenvolvam habilidades e competências.
Caracterización sobre las percepciones en el uso del teléfono móvil durante el envejecimiento en Argentina: comparación entre tres ciudades
Authors: Revollo Sarmiento Elsa Araceli , D’ Amico Lao Daiana , Fernandez Maira Verón , Lopez Moreno Celeste , Krzemien Daisy , Xifra Julia , Vivas Leticia
Published: December 2024

El propósito de este estudio es describir las percepciones que tienen las personas mayores en Argentina en tres ciudades diferentes sobre el uso de teléfonos celulares, y analizar la varianza significativa que tienen las percepciones según la ciudad de residencia de la muestra. A su vez, se realizó una descripción del perfil sociodemográfico de las personas mayores argentinas.  Diseño/metodología: Se presenta un estudio con un diseño no experimental, transversal, correlacional. Se conformó una muestra no probabilística de 138 adultos mayores seleccionados intencionalmente. Resultados: La experiencia previa en el uso de la tecnología, la autoeficacia y las condiciones de facilitación son las percepciones que más diferencias presentan entre las ciudades (Mar del Plata, San Salvador de Jujuy y Miramar). Además, se encontró que las personas mayores en general tienen cierto grado de ansiedad al usar el teléfono celular aunque cuenten con factores que faciliten su uso. Originalidad: esta investigación tiene implicaciones para las intervenciones destinadas a mejorar la salud funcional en los ancianos. Comprender las percepciones de las personas mayores en relación con la tecnología permitirá potenciar su utilidad para promover un estilo de vida autónomo y la integración social en la vejez.
Enseñanza de razonamiento clínico mediante scripts en un entorno virtual de enseñanza y aprendizaje
Authors: Maffia Silvia Adriana , Zangara María Alejandra , Dreizzen Eduardo
Published: December 2024

Introducción. La adquisición de las habilidades de razonamiento clínico es un propósito fundamental de la educación médica. El objetivo general del trabajo fue establecer un método que permita mejorar las habilidades de razonamiento clínico mediante el diseño y desarrollo de una metodología de enseñanza mediante scripts combinada con estrategias de aprendizaje en línea a través del entorno Moodle para alumnos de la carrera de medicina.
Material y Métodos. Se realizó un estudio prospectivo. Todos los alumnos concurrieron a la actividad teórico-práctica habitual y accedieron a un módulo de contenido teórico en formato PDF y Libro multimedial sobre el tema Enfermedad respiratoria del lactante dentro el entorno virtual de enseñanza y aprendizaje Moodle. Se incorporaron un Grupo Control y un Grupo Instructivo multimedial. En el Grupo Instructivo multimedial se incorporaron 4 clases online: una introductoria, seguida de tres clases cortas en las que se organizó la información del módulo en scripts con preguntas de autoevaluación con retroalimentación inmediata al final de cada una de ellas. Los alumnos fueron evaluados mediante un Test de Opciones Múltiples (TOM) y un Script Concordance Test (SCT).
Resultados. En el TOM el Grupo Instructivo multimedial obtuvo mejores resultados que el Grupo Control (89,1±6,2 vs 76,3±11,4; p < 0,001), En el SCT el grupo Instructivo multimedial obtuvo mejores resultados que el Grupo Control (67±10,9 vs 55±11,6; p < 0,001).
Discusión El aprendizaje de habilidades de razonamiento clínico es más efectivo si se promueve la construcción de guiones de enfermedades
Tecnologías disruptivas para la enseñanza disruptiva: seis recursos web destacados para el aprendizaje del inglés
Authors: Aguirre Céliz Cecilia Alejandra , Pérez Riesco Mario Germán
Published: December 2024

Desde hace décadas, las tecnologías forman parte del quehacer educativo, ya sea como complemento en propuestas presenciales o como mediadoras en propuestas con modalidad totalmente virtual. En el caso de la enseñanza y el aprendizaje del idioma inglés, la innovación educativa consiste en la incorporación de las tecnologías disruptivas que ofrece la Web, brindando una amplia variedad de posibilidades que marcan una tendencia a la hora de decidir cómo y con qué enseñar. Existen recursos que promueven la interactividad y el trabajo colaborativo, entre otros, y hacen que el proceso de aprendizaje sea más accesible y entretenido para los estudiantes. Por ejemplo, hay aplicaciones móviles y plataformas en línea que brindan la posibilidad de ejercitar la pronunciación, contenidos gramaticales, etc. y desarrollar habilidades lingüísticas a través de ejercicios interactivos con retroalimentación instantánea, mediante el uso de la inteligencia artificial o a través de la gamificación. En este artículo se exploran algunas tecnologías disruptivas y tendencias actuales que nos ofrece Internet en el área de la enseñanza y el aprendizaje del idioma inglés y se proponen seis recursos web que pueden resultar de gran utilidad para los docentes a la hora de planificar sus prácticas pedagógicas.
Resmi okullarda görev yapan bilişim teknolojileri öğretmenlerinin mesleki zorluklarına ilişkin görüşlerinin incelenmesi
Authors: İş Engin
Published: December 2024

Bu araştırma, Bilişim Teknolojileri öğretmenlerinin karşılaştıkları güncel sorunları ve bu sorunların mesleki pratiklerini nasıl etkilediğini incelemeyi amaçlamaktadır. Örnek olay deseniyle yürütülen çalışma, 2023-2024 eğitim-öğretim yılında görev yapan ve maksimum çeşitlilik örnekleme yöntemiyle seçilen 15 öğretmenle gerçekleştirilmiştir. Veriler, yarı yapılandırılmış görüşme formlarıyla toplanmış ve içerik analiziyle değerlendirilmiştir. Bulgular, öğretmenlerin yalnızca ders anlatmakla kalmayıp bilgisayar tamiri, kamera sistemi yönetimi, web sayfası tasarımı, fotoğrafçılık, ses sistemleri bakımı gibi pek çok görevi üstlendiğini ortaya koymuştur. Ayrıca, bilişim dersinin seçmeli olması, öğretmenlerin zorunlu olarak Bilgisayar Rehber Öğretmenliği (BTR) görevini kabul etmesi, dersin sınavlarda yer almaması gibi sorunlar tespit edilmiştir. Çözüm önerileri arasında, bilişim teknolojileri dersinin zorunlu hale getirilmesi, formatör öğretmenlerin kadrolu istihdam edilmesi ve genel sınavlarda dersle ilgili sorular sorulması yer almaktadır.
Does China’s stock market volatility affect agricultural loan market volatility?
Authors: Yan Kai , Yu Hanhsing
Published: December 2024

This study uses a Time-Varying Parameter Stochastic Volatility Vector Autoregression (TVP-SV-VAR) model to conduct an empirical analysis of the dynamic effects of China’s stock market volatility on the agricultural loan market and its channels. The results show that the relationship between stock market and agricultural loan market volatility is time varying and is always positive. The investor sentiment is a major conduit through which the effect takes place. This time-varying effect and transmission mechanism are most apparent between 2011 and 2017 and have since waned and stabilized. These have significant implications for the stable and orderly development of the agricultural loan market, highlighting the importance of the sound financial market system and timely policy, better market monitoring and early warning system and the formation of a mature and sound agricultural credit mechanism.
Dramat Umiera Chór Asi Wołoszyny: O Niemożliwości i Konieczności Dialogu Inteligencji z Narodem
Authors: Syska Katarzyna
Published: December 2024

Asya Voloshina’s drama The Chorus Perishes (Гибнет хор) was prompted by her disillusionment with the ineffectiveness of the mass anti‑regime protests in Russia in 2011‑2012. Although the play is set during the First World War, this article seeks to interpret the play as a commentary on Russian society in 2014. The author sees one of the main reasons for political stagnation in the disconnection of the intelligentsia from the less educated majority of the nation. This rupture prevents the transformation of the metropolitan protests into a broad social movement. In her drama, Voloshina constructs a complex array of voices, formed by characters’ speech (Doctor Mikhail and a Chorus composed of the documentary testimonies of soldiers) and intertextual references, to consider the causes and consequences of this fatal lack of dialogue between the intellectual elite and ‘ordinary people’.
Influence of Measurement Errors on Underground Topographic Bases
Authors: Filip Larisa Ofelia , Filip Anca Daniela
Published: December 2024

Underground topographic bases are of particular importance in the design and management of underground mining works. They can be dependent on the geodetic and topographic system on the surface, but they can also be independent in relation to a particular reference system. In the case of dependent topographic bases, it is preferable, from the point of view of the precisions required for the drawing of mining works in safe conditions, that they are related to two points known by their x, y (fixed) coordinates. The quantities measured in such situations are angles and distances. Measurement errors are transmitted to the determined quantities and consequently it is necessary to analyze the factors with which such a process can be evaluated. The necessary scientific approach is presented below.
Phase Transformations in Alloy Steel Containing Boron Using Dilatometry and Acoustic Emission
Authors: Łazarska Małgorzata , Piotrowska Aleksandra , Paciorek-Sadowska Joanna , Ranachowski Zbigniew
Published: December 2024

The tests were carried out for the selected 27MnCrB5-2 alloy steel with the addition of boron. The paper presents the kinetics of the ferritic transformation occurring under continuous cooling conditions. The temperatures of the beginning and end of the transformation of supercooled austenite were determined using a dilatometer. In addition, a waveguide and an acoustic sensor were installed in the device to receive acoustic emission signals. The results in the form of dilatometric curves were additionally confirmed by the obtained acoustic emission signals. Based on the obtained microstructural results, it can be concluded that in the hardening process of 27MnCrB5-2 steel at the applied temperatures, complex transformations of austenite into ferrite and bainite occur. The use of acoustic methods in the field of phase transformation issues creates the possibility of their application in industry.
Development, Comprehensive Characterization, and Antimicrobial Activity Evaluation of a Novel Class of Symmetrical 1,3-Benzoxazine Derivatives
Authors: Issam A.M. , Kareem Huda Salah , Jweeg Muhsin Jaber , Mohammed M.N. , Abdullah Thamer Adnan , Abdullah Oday I. , Hassan Chiya Othman
Published: December 2024

Completely symmetrical 6,6’-cyclohexane-1,1-diyl bis (3-substituted-3,4-dihydro-2H-1,3-benzoxazine) synthesized compounds have been able by a two-step process that yields a large amount of the compound. First, phenol and cyclohexanone were subjected to the Friedel-Craft process to produce 1,1’-bis(4-hydroxyphenyl) cyclohexane. The reaction between the bisphenol and formaldehyde and several primary amines produced unique symmetrical 1,3-benzoxazine compounds. Several spectroscopic methods, such as Fourier transform infrared spectroscopy, nuclear magnetic resonance (1H and 13C), GCMS spectrometry, and CHNS, were utilized in conjunction with tridimensional liquid chromatography (TLC) to investigate and validate the structures of the compounds created thoroughly. Two Gram-negative and two Gram-positive bacteria and a pathogenic fungus were tested for antimicrobial activity in contrast to the gold-standard medications streptomycin and nystatin. The antibacterial activity of some of these compounds was even better than that of the gold-standard medications, which is encouraging.
Analysis of Fatty Acids and Antibacterial Whey Proteins in Organic and Conventional Milk: Potential Influence on Lactic Acid Bacteria Growth
Authors: Sabunevica Stefanija , Radenkovs Vitalijs , Majore Kristīne , Zagorska Jeļena
Published: December 2024

Organic fermented milk products are an area of interest combining functional properties and sustainable practices. Limited information is available regarding the specific components of organic milk that may impact the growth of lactic acid bacteria. This study emphasised the differences in bioactive compounds between organic and conventional milk and their potential influence on lactic acid bacteria growth. Analysis of organic (n = 15) and conventional (n = 15) farm milk using GC-MS revealed differences in fatty acid (FA) concentrations, mainly mono-, polyunsaturated fatty acids, and conjugated linoleic acid. Individual FA, such as stearic, linoleic, and oleic acids, were up to 33.6%, 31.0%, and 25.23% higher in conventional milk. Detection of the whey proteins using the enzyme-linked immunosorbent assay (ELISA) showed lysozyme content was up to 40.6% higher in conventional (22.04 µg L−1) than in organic (15.68 µg L−1) milk. Conversely, lactoferrin content was 20.4% higher in the organic (45.27 µg L−1) than in conventional (36.04 µg L−1). No difference in the content of immunoglobulin A was found. The higher concentrations of lysozyme, mono- and polyunsaturated fatty acids in conventional milk could enhance a higher inhibitory activity against lactic acid bacteria compared to organic milk.
Assessment of Soil Quality and Metal Contaminants in Paddy Soils and Water in a CKDu-Affected area in Sri Lanka
Authors: Ranasinghe Hirushi , Perera Rajith , Premaratne Jeewantha , Liyanage Janitha , Perera Ruwan
Published: December 2024

The proliferation of chronic kidney disease of unknown etiology (CKDu) in Sri Lanka may be attributed to exposure to trace elements of both natural and human origin in the environment, which has been extensively explored and widely debated within the scientific community. This research aims to investigate the fluctuation of soil quality in paddy fields concerning depth and to evaluate the corresponding groundwater parameters in a region identified as a high-risk area for CKDu in the North Central region via determining different parameters including trace metals in both paddy soils and groundwater. The slightly alkaline paddy soils in the study area displayed elevated electrical conductivity values in the uppermost soil layer compared to the subsoil layer. Although hazardous metals, including lead (Pb), chromium (Cr), arsenic (As), and cadmium (Cd), were detected in the paddy soil, they did not surpass the critical toxic concentrations. A statistically remarkable robust positive correlation was discovered between the concentration of Pb in the soil and its depth. Additionally, the levels of toxic metals, such as lead, arsenic, cadmium, and chromium, in the study area’s groundwater were substantially lower than the safety standards set by the World Health Organization. However, some groundwater samples were found to contain anionic species, including fluoride, in concentrations that exceeded the established permissible limits. The gradual accretion of trace elements within the paddy soil presents a potential hazard for the translocation of such elements into the rice plants, thus constituting a possible threat to human health.
Unveiling Pre-Service Teachers’ Cognitions of Multilingualism and Multilingual Identities Using a Multi-Method Approach
Authors: Henehan Alison , Duarte Joana
Published: December 2024

Teacher cognitions of multilingualism influence classroom behaviour and are partly formed during pre-service teacher (PST) education (Borg 2003). In Fryslân, a linguistically diverse region of the Netherlands, Frisian is a compulsory subject, yet teachers feel underprepared to teach it, leading to negative attitudes towards the minority language and multilingualism in general. A survey, dominant language constellation (DLC) artefacts (Ibrahim 2022), and focus groups with vignettes (Barter & Renold 1999) were used to explore 72 PSTs’ cognitions of multilingualism in education and multilingual identities. Our triangulation of methods shows how cog- nitions of multilingualism can be mapped in various ways. PSTs held slightly positive cognitions of multilingualism in education in the survey and identified as multilingual in the DLCs and focus groups. However, PSTs’ cognitions of minority languages should be improved. This study contributes to the understanding of PSTs’ multilingual identities and cognitions and offers guidance on how the concept of teacher cognition can be applied to multilingualism to improve training on multilingual pedagogies for PSTs.
The Role of Government in the Development of the Pampang Cultural Tourism Village
Authors: Fauziah Siti , Lukman Andi Ismail , Wahyuni Sri
Published: December 2024

The research objectives are: To describe the Government's Role in the Development of Pampang Cultural Tourism Village. In the preparation of this thesis, researchers used a type of qualitative descriptive research with data collection techniques, namely, observation, interviews, and documentation studies.  The data source is the government in the pampang cultural village. Data analysis techniques are data reduction, data presentation and conclusion drawing. The results showed that: 1. The facilitator implemented by the government creates conditions conducive to the implementation of cultural management and preservation activities to bridge the various interests of the community and the government in optimizing the program, as a facilitator the government is engaged in assisting training, education, improving skills and funding or capital in the capital program through providing capital assistance to the community, 2. Communicator to maintain good communication between government, community, and artists. Communication is an integral part of a management process through effective communication, harmonious cooperation that can be developed to achieve goals and open cooperation. 3. Catalyst to accelerate the process of an event. To be able to carry out its role as a catalyst, the government also acts as a stimulant to accelerate the process of village potential.
Analysis of Students Interests, Styles, and Collaboration Abilities in The Implementation of The Searching Information, Communication, and Modelling Learning Model
Authors: Lestari* Iing Dwi , Fuziyanti Ani , Usman Usman , Wahyuni Indria , Hendriyani Mila Ermila , Musayaroh Siti
Published: December 2024

Implementing the searching information, communication, and modeling (SICOMO) learning model in the learning process can develop 21st-century skills for students. This study aimed to analyze students' learning styles, interests, and collaboration abilities in implementing the SICOMO learning model. This is a quantitative study with data collected through questionnaires filled out by 40 students. The results of this study show that students' learning interests include drawing/designing 35%, making videos and role-playing 31%, and writing and speaking 24%. Students' learning styles are visual type 43%, kinesthetic type 27%, and auditory type 30%. Collaboration skills with indicators of active contribution 94%, productive work 92%, flexibility and compromise 89%, responsibility 88%, and respectful attitude 92%. These findings suggest that the SICOMO learning model not only enhances student engagement but also fosters diverse skills, demonstrating its effectiveness in serving different learning preferences and promoting teamwork among students
Development of Science E-module Based on Augmented Reality Using Assembler Edu on the Material of Substances and Their Changes
Authors: Salsabila Putri , Putra Teja Pratama , Nasir Muhammad , Abe Yoichiro , Linda* Roza
Published: December 2024

Students' understanding of abstract concepts in the material on substances and their changes is still a challenge in science learning. This study aims to develop a valid and practical augmented reality-assisted science module using assembler edu on the material of substances and their changes. this type of research is research and development (RD) and uses the ADDIE development model. The procedures of this study include (1) the analysis stage, (2) the design stage, (3) the development stage. The data collection instruments used were a needs questionnaire, a validation questionnaire for material and media experts, a questionnaire on the practicality of teachers and students. The subjects in this study included validation test subjects consisting of 3 material experts and 3 media experts, a practicality test consisting of 3 science teachers and 30 students. The implementation of the practicality test was carried out at SMP Negeri 40 Pekanbaru in the 2024/2025 Academic Year. The results of the study show that: 1) based on the results of the validation test by material experts and media experts, the assessment scores were 0.99 and 0.97 with very valid qualifications, (2) based on the results of the practicality test by practitioners/teachers and students, the average scores were 3.75 and 3.70 with very practical qualifications. Based on the results of the validation and practicality tests, the science module assisted by augmented reality on the material of substances and their changes is declared valid and practical to be used as teaching materials in the learning process
Physiological responses and production of Gama Melon Parfum (Cucumis melo L. cv. GMP) on different water availability
Authors: Putri Renata Nellis Nadinda , Daryono Budi Setiadi , Wibowo Wiko Arif , Rachmawati Diah
Published: December 2024

Gama Melon Parfum (GMP) cultivar is a result of crossbreeding between the Natsuno Omoide and Miyamauri melon varieties in 2011. GMP exhibits a unique phenotypic characteristic, including a bitter taste of the fruit flesh and produces a stronger aroma. The objective of this study was to investigate the physiological responses and productivity of GMP under varying water conditions. The experiment was conducted using a single factor consisting of different levels of water availability with field capacity at 50%, 75%, and 100%, as well as submergence at 2 cm, 4 cm, and 8 cm above the soil surface. Each treatment was replicated three times. The plot size for each replication was 2 m x 2 m, ensuring consistent conditions for all treatments. The results of the study showed that treatment with 100% field capacity increased stem diameter, while treatment with 50% field capacity increased the root-to-shoot ratio of GMP. Submergence treatment at 8 cm decreased stem diameter and the root-to-shoot ratio of GMP. The 50% field capacity treatment reduced the total chlorophyll levels in GMP leaves. Submergence treatment at 8 cm increased the total chlorophyll levels in GMP leaves. The 50% field capacity treatment increased fruit fresh weight, while submergence treatment at 2 cm decreased fruit fresh weight. Submergence treatment at 2 cm reduced fruit water content, whereas submergence treatment at 8 cm increased water content in GMP fruits.
Keywords: drought; Gama Melon Parfume (GMP); growth; plant physiological responses; submergence
COMPARISON OF DIRECT AND INDIRECT LDL CHOLESTEROL LEVELS CALCULATIONS (FRIEDEWALD & CHEN) IN PATIENTS AT RSUP PROF. DR. I.G.N.G. NGOERAH DENPASAR
Authors: Setyawati Putu Ayu , Herawati Sianny , Subawa A.A Ngurah
Published: December 2024

High LDL cholesterol levels are the risk factor for coronary heart disease. Proper measurement of LDL levels helps in determining the accuracy of evaluation and therapy. Measurement of LDL cholesterol levels can be done by direct or indirect methods. Until now, the Friedewald formula is a method that is still often used but has shortcomings. So many new calculation formulas have emerged, one of which is the Chen Formula. This study was to comparison of LDL-direct with the LDL levels measured by the Friedewald and Chen formula. This study was conducted at Prof. Dr. I.G.N.G. Ngoerah Hospital, Denpasar. Samples used were 95 patients who performed lipid profile examinations in the period April-June 2023 with consecutive sampling techniques. Based on the independent t-test of LDL recruited with Friedewald and Chen indirect, the p-value was 0.205 and 0.206 respectively (p> 0.05), thus it was did not find any significant differences between LDL cholesterol direct and indirect (Friedewald & Chen).
Service quality models in the public drinking water supply in Mexico
Authors:   Instituto de Investigaciones Dr. José María Luis Mora, Mexico City, Mexico, Silva Jorge
Published: December 2024

To analyze service quality models in the public drinking water supply in Mexico. The paper conducts a systematic review of various works of erudition on the subject, with the models being identified based on their application. A systematic literature review was conducted using the Preferred Reporting Item for Systematic Reviews (PRISMA) and the 3-stage approach by Arksey and O’Malley. The study design was chosen because it helps in the identification of articles through predefined criteria. Electronic searches were conducted via Web of Science and Scopus, with articles published between 1980 and 2022 being identified. The articles were then screened for relevance, applicability, validity, and reliability. The review identified at least five GAPS under the GAP model, which include knowledge, policy, delivery, communication, and consumer. Subsequently, the SERVQUAL model shows that the public drinking water supply systems fall below the set expectations of reliability, assurance, empathy, tangibles, and responsiveness. Contrarily, the government has set up programs like PROME and the Citizens’ Initiatives for General Water Law aimed at improving citizen participation and comprehension of key GAPS in the water supply system. The research is novel as it prods the subject of service quality models in Mexico. This topic is an unexplored area, especially with regard to the GAP and SERVQUAL models. The insight derived from this paper will bridge the existent dearth of knowledge while improving policy formulation and implementation.
Effect of Seasonality on the Diet of Two Acaris of The Spectracanthicus Genus in the Xingu River, Altamira, Brazilian Amazon
Authors: Silva Wilson Martins da , Nahum Victoria J. Isaac , Giarrizzo Tommaso
Published: December 2024

Objective: The objective of this study was to study the effect of variations in the hydrological cycle on the feeding of Spectracanthicus zuanoni and Spectracanthicus punctatissimus.
Theoretical Framework: Seasonal variations in water resources may result in changes in the food resources of ichthyofauna, determining the trophic profile of aquatic species dependent on these resources. Characterizing the trophic niche of the species studied may indicate whether the populations have any level of overlap and how this may affect their survival in an environment about to undergo major hydrological changes.
Method: They were captured monthly from September 2012 to June 2013, by diving with a compressor, in a stretch of the Xingu River, Pará, near the city of Altamira. Biometrics were performed on the captured individuals, weighed and measured. Their stomachs were removed, weighed, fixed, and preserved in alcohol for later laboratory analysis. The indexes used in the analysis consisted of frequency of occurrence, volumetric and numerical, composing the index of relative importance.
Results and Discussion: The analysis of the diet showed that the most consumed item was detritus/sediment, complemented by diatoms, chlorophytes, filamentous algae, invertebrates and sponges. A high degree of specialization in the capture of detritus was characterized. The niche overlap verified by the multivariate analysis did not observe evident niche overlap, being explained by the abundance of available resources.
Research Implications: It was inferred that the detritivorous diet of the acaris was not significantly affected by seasonality, and the trophic behavior observed is in accordance with that expected in seasonal changes.
Originality/Value: The specialized habit of scraping and sucking the benthic periphyton is what determines a trophic profile specialized in the capture of detritus. Chlorophytes, diatoms and filamentous algae are not very representative in the flood period, being very abundant in the dry season. The consistent use of a detritivorous diet is important information for the survival of the studied ichthyofauna, where the apparent overlap of trophic niche is attenuated by the sharing of abundant resources used by both species.
Molecular detection of deformed wing virus, black queen cell virus in honey bees in balıkesir province
Authors: Karapınar Zeynep , Özüiçli Mehmet
Published: December 2024

Viral infections are among the risk factors affecting the health of honey bees, which are economically and ecologically important insects. These infections cause large-scale colony losses. The primary threat to the well-being of western honey bees (Apis mellifera) is the ectoparasitic mite Varroa destructor, mainly because of its role as a transmitter of viruses. This study aimed to investigate the presence of deformed wing virus (DWV) and black queen cell virus (BQCV) infections, which cause significant colony losses in honey bees, using the reverse transcriptase polymerase chain reaction (RT-PCR) method. For this purpose, adult bees were taken from 50 hives by random sampling in three different regions of Balıkesir. As a result of the analysis of the samples, the genome positivity of DWV and BQCV infections was determined to be 86% (43/50) and 24% (12/50), respectively. In the study’s bee colonies, multiple infections with both viruses were found at a rate of 18% (9/50). The results obtained revealed that Varroa was not effectively controlled in the colonies, especially in the last month of spring, and accordingly, that viral diseases may occur due to Varroa infestation in the winter months.
Kobieca sandologia
Authors: Zawadzka Danuta
Published: December 2024

Recenzja książki: K. Nadana-Sokołowska, George Sand – polskie spojrzenia, Wydawnictwo Instytutu Badań Literackich PAN, Warszawa 2022, ss. 512.
Morphology, Physico-Chemical Characteristics, Nutrient Status and Fertility Capability Classification of Andosols under Different Land Use Systems in Foumbot (Cameroon Western Highlands)
Authors:   Department Of Soil Science, Faculty Of Agronomy And Agricultural Sciences, University Of Dschang, P. O. Box 222, Dschang, Cameroon
Published: December 2024

Demographic explosion in developing countries over the past years has increased the demand for food, leading to intense pressure on soils and land fertility decline. This work aims to determine the effects of different land use systems on soil physico-chemical properties, nutrient status and fertility
Anticarcinogenic Activity of Plant Bioactivity Compounds
Authors:   Inner Mongolia University For The Nationalities, Mongolian Medicine College, Tongliao, China
Published: December 2024

Cancer is the first leading cause of mortality in the world. Patients who are diagnosed at earlier stage are good related with diagnosed at late stage, there are no choice of treatment (cancer patients who are at a late stage are unable to cope with chemical therapy) at the late stage.
Fermentation as a Method of Food Processing and Fermented Food as Probiotics: A Review
Authors:   BabaSaheb Bhim Rao Ambedkar University, Upadhyaya Suman
Published: December 2024

Fermented foods are classified as foods or drinks produced through controlled microbial growth, and the conversion of food components through enzymatic activity. In recent years, fermented foods have gained popularity, mostly due to their health benefits.
Isolation of aFlavonoid Bioactive compound fromGymnoascus dankaliensis Secondary Metabolite
Authors: Jafar Furdos Noori , Sabah Fatima S.
Published: December 2024

Flavonoids, a wide range of phenolic compounds produced as secondary metabolites in plants, bacteria and fungi, have highly potent activities. In this study, the fungus  Gymnoascus dankaliensis was isolated in spring from sheep dung samples, and itsability to produce a secondary metabolite was investigated. The fungal secondary metabolite was extracted, and the antimicrobial and antioxidant activitis were tested. The results showed that Gymnoascusdankaliensis, thefirst ever isolated fungus from dung in Basrah, could produce a secondary metabolite that were produced using a Solid State Ferementation SSF medium after 40 days of incubation. The bioactive compounds were extracted from the solid media by using ethyl acetate. The chemical identification of the extracted bioactive compound indicated that the isolated compound belonged to the flavonoid group. The isolated flavonoid compound tested as an antimicrobial agent against three clinical isolates of bacteria,Escherichia coli , Staphylococcus aureus and  and Bacillus subtilis, was also tested against two yeast isolates Candida albicans and C. tropicalis. The results recorded the largest inhibition zone in S.aureus. Whereas C.albicans was found to be more sensitive toward the isolated flavonoid compound than C. tropicalis. The antioxidant activity of the isolated compound was investigated using DPPH (1,1-diphenyl-2-picrylhydrazyl) method where it showed moderate antioxidant  activity compared to ascorbic acid.
Evaluation of the Properties of Magnetite (Fe3O4) Nanoparticles Prepared by the Green Method Using Phoenix dactylifera Extract
Authors: Shanan Zainab J. , Ali Huda M.J. , Abdalameer Nisreen Kh.
Published: December 2024

Iron oxide (Fe3O4) nanoparticles were synthesized via an eco-friendly green approach by adding Phoenix dactylifera extract to the aqueous solution of ferric chloride. The effect of annealing temperature (Ta) (100-150) °C on particle size was studied. X-ray diffraction (XRD), UV-visible spectroscopy, atomic force microscopy (AFM), and field emission scanning electron microscopy (FESEM) were used to evaluate the produced nanoparticles. According to XRD spectra, the crystallite size of the samples was determined using the Scherrer formula. AFM and FE-SEM were used to determine surface morphology. A UV-Vis optical spectroscopic examination was carried out to determine the band gap energy of the iron oxide nanoparticles. It was found that with the increased temperature from 100 to 150 oC, the band gap energy of the produced Fe3O4 NPs decreased. The size of the produced particles increased with increasing temperature, as evidenced by AFM and XRD spectra.
Inelastic Form Factors for the 90Zr Nucleus with Short-Range Correlations Effect
Authors: Abdalsada Israa Khalil. , Al-Rahmani Altaf A.
Published: December 2024

Short-range effect on C2, C3, C4 and C5 form factors in the 90Zr atomic nucleus was scrutinized. The charge density of the 90Zr was as well as scrutinized via the 1- and 2-body parts of cluster expansion in collaboration with harmonic functions of single particle. To incorporate the short-range effect in the 2-body part of cluster expansion, the Jastrow formula was used. Here, the core-polarization and model space participations are what lead to the form factors in 90Zr. The transition density of core polarization was calculated using the Tassie form, relying on the charge density. The elements of one body density matrix were determined by performing shell model computations using the computer code OXBASH together with the N50J interaction. The oscillator parameter  and correlation parameter  were applied to the existing calculations, where  and   are autonomously produced for each distinct nucleus by matching between the predicted and actual elastic form factors. A single value for each of  and  must be given for computing the density, elastic and inelastic form factors for diverse states in 90Zr. This work provides confirmation that the short-range effect substantially dominates existing computations, where taking this effect into account appears to be crucial to creating an important modification to the predicated findings which eventually leads to a noteworthy interpretation of the data across all assumed momentum transfers.
Distribution Of Some Heavy Metals in Soils of Abu-Ghraib Land, Baghdad, Iraq
Authors: Ali Noor A. , Abdullah Enaam J.
Published: December 2024

Heavy metals and metalloids can accumulate in the soil, cause severe risks to human health and the ecosystem, and threaten the sustainable use and management of soil resources. This study investigated the Distribution and levels of heavy metals in soils of different lands in Abu-Ghraib (AGP), Baghdad, Iraq. Twenty-seven samples from cultivated soil and two uncultivated soil samples were collected during February 2023 from the surface layer (0–30 cm depth) and analyzed for major oxides and heavy metals. Different parameters were utilized to investigate the naturality of studied soils, including grain size analysis, pH, total dissolved solids (TDS), electrical conductivity (EC), and trace elements (TEs) concentration. Analysis of grain size indicated that all soil samples were silty clay. The mean pH of the collected soils was 7.9, indicating its alkaline nature. Also, the mean of EC and the TDS of the studied soils was 801.55 μS/cm and 0.80155dS/m, respectively, referring to their non-salinity. Mineralogical analysis by XRD indicated the presence of non-clay minerals, such as calcite, quartz, feldspar, and dolomite, and clay minerals, such as illite, kaolinite, and palygorskite. Levels of Al2O3, CaO, Fe2O3, K2O, MgO, P2O5, and SiO2 were interchangeably found high in both types of soils, with CaO (19.84ppm), MgO (7.18ppm), and TiO2 (0.78ppm) being slightly higher in the uncultivated soils. TE concentrations followed a descending order of Mn> Cr> Ni> V> Zn> Cu> Pb> Co> Mo> As> Th> Cd> U> Se in the cultivated soils and Mn> Cr> Ni> V> Zn> Co> Cu> Pb> Mo> Th> As> Cd> U> Se in the uncultivated soils. The results also showed that the concentrations of Cr (262.36> 200ppm), Mo (10.87> 10ppm), Ni (190.24> 150ppm), and V (157.68> 150ppm) acceded the maximum allowable concentrations. Such elevated concentrations of TEs in Abu-Ghraib soils are concerning and may lead to abnormal plant growth, reduced biodiversity, and increased risk of human health problems.
Investigating the Impact of Media Alerts on an Epidemiological Model Involving Asymptomatic Cases
Authors: Saadi Rami Raad , Al-Husseiny Hassan F.
Published: December 2024

The significance of media alerts in influencing public perception and response during disease outbreaks is of paramount importance. This research investigates how media alerts affect the epidemiological model by taking into account both asymptomatic and symptomatic cases. Media alerts serve as a powerful tool for raising awareness about the disease, driving people to undergo testing and diagnosis, and promoting adherence to public health measures. This, in turn, contributes to better reporting and surveillance of cases, leading to a more accurate representation of disease spread in the model. The proposed model introduces a five-dimensional compartment system that includes susceptible, asymptomatic, symptomatic, recovered populations and media. This research addresses various aspects of the model, such as its uniqueness, boundedness, and existence of solutions. The determination of all possible model equilibrium points is thoroughly explored. To study the global dynamics of the proposed models, appropriate Lyapunov functions are employed. Additionally, numerical simulation is also carried out to investigate the influence of parameters affecting the dynamics of the model and to support the gathered analytical findings of the model.
Improving SEP for Heterogeneous Wireless Sensor Networks
Authors: Al-Mejibli Intisar SH.
Published: December 2024

The lifespan of WSNs is crucial, and it primarily relies on the energy efficiency of the sensors, as their power source is often non-rechargeable and non-replaceable batteries. Addressing this issue involves carefully designing of a routing protocol that considers energy saving. This article presents a heterogeneity-aware routing protocol based on the Stable Election Protocol SEP for heterogeneous WSNs to extend the lifespan of the WSN by reducing energy consumption. The proposal employs the Time Difference of Arrival (TDoA) in the cluster-forming process to determine the shortest distance between the cluster head (CH) and sensor nodes in that cluster, thereby minimizing power consumption in all later communication operations. The proposal has been evaluated and compared to three protocols which are SEP, Zonal-SEP (Z-SEP), and Improved Z-SEP (IZ-SEP). The results depicts that the proposed protocol outperforms the three protocols in terms of the largest number of alive nodes in all evaluation rounds and exhibited a greater average of residential energy in nodes by about 90%, 10%, and 5% more than SEP, Z-SEP, and IZ-SEP respectively.
Alleviating the User Cold-Start Problem in Recommendation Systems Based on Textual Reviews Using Deep Learning
Authors: AbdulAmeer Amenah Nahedh , Hussein Mohsin Hasan
Published: December 2024

The main objective of recommender systems is to assist users in overcoming the issue of information overload by providing them with a carefully selected list of items that they are likely to find useful or relevant. Recommender systems may face many limitations and challenges, such as the cold start problem, which occurs when there is insufficient or no information about a new user or item. This leads to a decline in the performance of the recommender system. In this paper, we propose a recommendation system based on textual reviews and the deep learning method (RS-TRDL) to alleviate the user cold-start problem. Our RS-TRDL model can extract the important aspects and underlying sentiment polarity classification from the review text using NLP techniques and a deep learning method. These are then fused into collaborative filtering techniques to improve the RS and alleviate the user cold-start problem. The proposed method consists of two components: (i) An aspect-based sentiment analysis module that aims to extract aspects from the review text with its polarity; (ii) A recommendation generation component that uses the aspects as additional information with the numeric ratings. It also employs an important feature in the dataset, namely, the helpfulness to finally infer the overall rating prediction. Extensive experiments were conducted by the proposed system on two Amazon datasets. The experimental results show that the proposed RS-TRDL model exceeded all literature-reviewed comparison methods in the cold-start problem alleviation task.
Horan Valley Environmental Monitoring Based on its Digital Elevation Model to the 2023 Year
Authors: Jawad Laith A.
Published: December 2024

The ecological interaction, human, geomorphological, and climatological factors lead to basin morphometry; morphometric aspects could be used as evidence for understanding the nature of these factors in terms of active dominant factors within the basin area. Quantitative morphometric analysis based on remote sensing imageries and GIS techniques is the best way to determine these aspects. In this research, a new approach was submitted: using Google Maps to track the Horan Valley path and region that passes through, delineating the main basins in the region, and then neglecting all basins that involve the valley only. The obtained results showed that the Horan region is a four-order basin with 213 1st-order streams, 89 2nd-order streams, 35 3rd-order streams, and 84 4th-order streams, and its area is 12947 km2, the average bifurcation ratio is (1.784) indicating the flood risk in the basin during rain generally, while the sub-ratios between two successive orders refer to this risk absence in the main order streams. Dd was 0.201 km-1, revealing the area's desertification and increased soil permeability. Fs was 0.0325 stream/ km2, meaning an alluvial basin formed mainly by sediments during rainstorms. T was 0.0611 km-1, proving the region's soil's high porosity and permeability. Re was 0.289, indicating semi-rectangle basin shape and geological structures equivalence. C was 0.086, revealing that lineaments control the basin drainage pattern model, and Rf was 0.069, meaning a youth geomorphological stage and length of the water drainage period till arriving at the basin end during the rain.
Wind Energy Density Calculation Based on Different Data SourcesA Comparative Study for Al-Shehabi Site-Iraq
Authors: Oudah Samah Shyaa , Abduallh Yahya basheer , Hadi Firas A.
Published: December 2024

This research proposed a 5.0 MW wind power project at the Al-Shihabi site in Iraq. The wind speed was collected from the Al-Shehabi metrological station at heights 10, 30, 50, and 52 m with 10-minute time intervals; then those data were compared with the hourly wind speed measured at 50 m for one year above the ground level obtained from the NASA site. The data were modeled using the Weibull distribution function for all wind power heights. Three methods were used to estimate Weibull parameters: Maximum Likelihood, Least Squares, and WAsP, which were executed to determine the numerical values of Weibull shape parameter (k), scale parameter (c), and mean wind speed. It is concluded that the annual mean wind speeds and the annual mean wind power densities of the measured data at 10, 30, 50, and 52 m heights were 4.607m/s, 144.0W/m2, 6.068 m/s, 257.0 W/m2, 6.673m/s, 346.0 W/m2, 6.91m/s, 359.0W/m2 respectively, as 3rd class (Gentle Breeze), while the results of wind data from NASA at 50 m were 5.241m/s and 126 W/m2 as 2nd (Light breeze). The predicted power density was analyzed using ten wind energy system models of rated capacity 10, 25, 50, 60, 100, 330, 500, 850, and 900 kW.