bluuebunny/crossref_metadata_2025_split huggingface dataset:
An Examination of Ex – Dividend Day Stock Returns: A Case of Pakistan Stock Exchange
Authors: Amber Qadar  , Muhammad Khan  
Published: December 2024

This research paper attempts to investigate the impact of various factors on abnormal returns of stocks around ex–dividend day. For this, stocks listed in Pakistan stock Exchange have been examined considering a time span of twenty years. This study covers the time span when capital gain tax on sale of securities was introduced in Pakistan in July 2010. Moreover, the impact of various exogenous variables, specifically unsystematic risk along with systematic risk, has not been analyzed on ex – dividend abnormal returns particularly in the context of Pakistan. Generally, stock prices decrease with an amount less than dividend on ex – dividend day. Such price discrepancies may attract traders and arbitrageurs to earn quick profit and result in abnormal returns. Panel data is used covering the time span of twenty years 2001 – 2020. Diagnostic tests have been applied to check the normality of data. The Hausman test is used to choose between fixed effect and random effect model. Further, Breusch and Pagan Lagrangian multiplier test is used to decide between pooled regression model and random effect model. Based on the obtained results, fixed effect model is considered appropriate choice for making prudent conclusions. Impact of various exogenous factors is examined through fixed effect regression model. Abnormal returns are calculated with the help of the market model. Our regression results revealed that dividend yield, transaction cost, systematic risk and firm age have crucial and significant impact on ex–dividend day abnormal returns. The ex-dividend day anomaly, a phenomenon that greatly affects trading methods, would also be clearly illustrated for dividend-capture and capital-gain traders, who could benefit most from this study. They can optimize their trading methods to maximize returns and minimize potential risks by considering the variables causing this anomaly. Institutional stakeholders will also benefit greatly from this research because they may use it to improve the way they manage their portfolios and create innovative investment and trading plans.
Ambisyllabicity in Pakistani English: Optimality Approach
Authors: Shahid Hussain Mir  
Published: December 2024

The current research paper investigates the phenomenon of ambisyllabicity in Pakistani English (PE) by using the framework of Optimality Theory for examining the ambisyllabic consonants and syllable structures within the Pakistani English variety. Ambisyllabicity in non-native varieties of English remains under-researched. The current research paper identifies the constraints and ranking that influences the placement of ambisyllabic consonants in PE, and comparing these consonants with the British English (BE). The nature of the study is descriptive. The study collected the data from acoustic analysis and native speakers intuitions, focusing on word medial consonants. The analysis of the data reveals that ambisyllabicity in (PE) is similar to (BE) but there are some unique constraints rankings in PE due to the transfer of effects of native languages. The study contributes to a more comprehensive understanding of the syllable structures in World Englishes and phonological phenomenon in Pakistani English.
Información y Novedades
Authors: Ayuso Bibiana , Rassetto María Josefa 
Published: December 2024

XI Jornadas Nacionales y VI Congreso Internacional de enseñanza de la BiologíaOrganizado por ADBiA – Universidad Nacional de Río Negro 9, 10 y 11 Octubre 2014, General Roca, Pcia de Río Negro, Argentina Próximamente información en http://congresosadbia.com/ocs/VIII Congreso Internacional Didácticas de las Ciencias XIII Taller Internacional sobre la Enseñanza de la FísicaOrganizado por el Ministerio de Educación de la República de Cuba Palacio de Convenciones de La Habana 24 al 28 de marzo de 2014 Información en: http://cbtis187.edu.mx/wp/blog/2013/04/16/viii-congreso-internacional-didaticas-de-las-ciencias/VIII Congreso Iberoamericano de Docencia Universitaria y de Nivel Superior “La construcción de saberes acerca de la enseñanza: un desafío para la docencia universi-taria y de nivel superior ”Organizado por la Universidad Nacional de RosarioRosario, 21, 22, 23 de abril 2014-República Argentina Información en http://www.iberoamericano2014.unr.edu.ar/internas/circulares.htmlII Simposio Internacional de Enseñanza de las Ciencias (SIEC 2014)Universidad de Vigo – España -Congreso virtual (online) sobre el futuro de la enseñanza de las ciencias 13 a 16 de octubre 2014 Información http://www.webs.uvigo.es/siec2014/Congreso Iberoamericano de Ciencias, Tecnología, Innovación y Educación “Avanzando juntos hacia las Metas Educativas Iberoamericanas 2021”Buenos Aires, Argentina 12, 13 y 14 de noviembre 2014Información en : http://www.oei.es/congreso2014/
PENGARUH PERUBAHAN FREKUENSI DALAM SISTEM PENGENDALIAN KECEPATAN MOTOR INDUKSI 3 FASA BERBASIS VARIABLE FREQUENCY DRIVE (VFD) TERHADAP ARUS KUMPARAN MOTOR
Authors: Aswad Alfian M Moh. , Rasmondo Rasmondo , Fitriati Andi , Mustafa Syahrul , Mukhlisin Mukhlisin 
Published: December 2024

Motor induksi tiga fasa terhambat oleh kesulitan yang melekat dalam pengaturan kecepatan. Hal ini disebabkan oleh fakta bahwa motor ini berputar dengan kecepatan konstan. Kontrol Variable Frekuensi Drive (VFD), yang terhubung secara fisik ke motor, dapat digunakan untuk mengatur frekuensi masuk motor induksi tiga fasa. Untuk mengatur kecepatan motor, tujuan penelitian ini adalah untuk mengetahui pengaruh memvariasikan frekuensi sumber terhadap arus motor induksi tiga fasa yang beroperasi pada kondisi beban dan tegangan sumber konstan. Pada pengujian terdapat 3 skenario pengujian yaitu (1) Pengujian VFD dengan frekuensi yang bervariatif, (2) Pengujian VFD dengan beban konstan, (3) Pengujian motor induksi tanpa menggunakan VFD. Hasil penelitian yang diperoleh (1) Perubahan frekuensi berbanding lurus dengan perubahan kecepatan motor, (2) Arus pada kumparan motor cenderung stabil, (3) Kumparan motor cenderung mengalami kenaikan. Maka dari itu arus cenderung stabil 2,3 - 2,4 (A) terhadap kumparan motor.
Pemahaman dan Persepsi Generasi Muslim Milenial terhadap Produk Investasi Syariah
Authors: Meldi  , Denisa Sundari  , Dina Egi Marsamelia  , Viona Agustin Hidayani  , Refskin Takari  
Published: December 2024

ABSTRACT
The interplay between religion and finance in investment practices witnessed by Indonesia in 2019 reflects an important shift in the country's economic landscape. The purpose of writing this journal is to reveal the ins and outs of consumer behavior dynamics in the context of Islamic finance based on understanding and perception. The method used is descriptive qualitative with reference to secondary data in the form of literature. The results found that the millennial generation's understanding and perception of Islamic investment products are strongly influenced by educational factors, religious influences, as well as the experience and information they get.

ABSTRAK
Keterkaitan antara agama dan keuangan dalam praktik investasi yang disaksikan oleh Indonesia pada tahun 2019 mencerminkan perubahan penting dalam lanskap ekonomi negara ini. Tujuan penulisan jurnal ini adalah untuk mengungkap seluk beluk dinamika perilaku konsumen dalam konteks keuangan syariah berdasarkan pemahaman dan persepsi. Metode yang digunakan adalah deskriptif kualitatif dengan mengacu pada data sekunder berupa literatur. Hasil penelitian menemukan bahwa pemahaman dan persepsi generasi milenial terhadap produk investasi syariah sangat dipengaruhi oleh faktor edukasi, pengaruh agama, serta pengalaman dan informasi yang mereka peroleh.
Customer satisfaction status. Strategies and ways to address it
Authors: Maldonado Emanuel Jose 
Published: December 2024

Introduction: customers focus on obtaining services or products where they are treated with cordiality, friendliness and courtesy; in order to establish a degree of empathy with the service provided. Objective: assess the state of customer satisfaction based on their approach to strategies and ways of addressing it.Method: a research review of the scientific literature was developed. Descriptors were used to search for information. The search was carried out in the Scielo and SCOPUS databases. A total of 20 works were used for the development of the research. Development: the international business system faces a globalized economic system, where competition through the free market is based on the quality and effectiveness of the products offered. Feedback with customers is an important indicator that determines the level of productivity of a sector; In other words, we talk about the degree of customer satisfaction.Conclusions: customer satisfaction should be considered one of the main goals within business objectives. Depending on the degree of satisfaction, the wealth that a company in question can produce is determined. Its approach must be comprehensive, based on new tools (mostly digital) that help to understand it in real time. In turn, work strategies and/or work environment are updated and perfected in order to achieve better conditions that translate into greater satisfaction on the part of the consumer or client
Quercetin Regulates the Polarization of Microglia through the NRF2/HO1 Pathway and Mitigates Alzheimer's Disease
Authors: Feng Ying , Yu Xinjun , Han Jingyang 
Published: December 2024

Background: Alzheimer's disease (AD) is a burdening disease and is the main cause of dementia. Quercetin (Que), an antioxidant, plays potential roles in treating age-related disorders, including AD. This study aimed to validate the effects of Que on AD and explore the underlying mechanisms.
Methods: Mice with no treatment, amyloid-β Aβ (1-42) treatment (for acquiring AD model), or Aβ (1-42) plus Que treatment were used. Cognitive function was determined using the open field test (OFT), objective recognition test, and Y-maze test. In brain tissues, mRNA levels of inflammation cytokines, the M1 microglia marker cluster of differentiation (CD)86, and the M2 microglia markers arginase 1 (Arg1) and CD206 were measured. Nuclear factor E2-related factor 2 (NRF2)/heme oxygenase-1 (HO1) pathway-related proteins were detected by western blot. Additionally, mechanisms were investigated using human microglia HMC3 cells treated with Aβ (1-42) and Aβ (1-42) plus Que. The NRF2/HO1 pathway in HMC3 cells was inhibited using the selective inhibitor ML385. Cell viability and death were assessed using the cell counting kit-8 (CCK-8) and lactate dehydrogenase (LDH) release levels, respectively. Cell apoptosis was measured by terminal deoxynucleotidyl transferase-mediated dUTP nick-end labeling (TUNEL). Levels of NRF2/HO1 pathway-related proteins, inflammation cytokines, and oxidative stress-related markers, including malondialdehyde (MDA), superoxide dismutase (SOD), and glutathione (reduced glutathione (GSH)/oxidized glutathione disulfide (GSSG)), were determined in HMC3 cells. Flow cytometry was used to determine M1 markers CD86 and CD80 and M2 markers CD206 and CD163.
Results: Cognitive ability was impaired in AD model mice, and Que treatment reversed this impairment (p < 0.05). Levels of interleukin (IL)-1β, tumor necrosis factor-alpha (TNF-α), and IL-6 were increased, while M2 markers were decreased in the AD model mouse brain. Que treatment reversed these changes (p < 0.001). The NRF2/HO1 pathway was slightly inhibited in AD mice brain, while further activated by Que (p < 0.05). Que reversed the Aβ (1-42)-impaired cell viability. Through greatly activating NRF2/HO1 pathway, Que suppressed Aβ (1-42)-induced cell death, decreased Aβ (1-42)-promoted IL-1β, TNF-α, IL-6, MDA, CD86 and CD80, increased Aβ (1-42)-suppressed SOD and GSH/GSSG, and greatly increased CD206 and CD163 (p < 0.01).
Conclusion: Quercetin, through the activation of the NRF2/HO1 pathway, promotes M2 polarization of microglia, suppresses Aβ (1-42)-induced inflammation and oxidative stress, protects microglia from Aβ (1-42)-induced damage, improves cognitive function in mice, and demonstrates therapeutic potential for AD.
Увеличение срока использования минерализованных буровых растворов
Authors: А.Ю. КУРЕННЫХ , Е.В. СЕРАЯ 
Published: December 2024

При бурении скважин на месторождениях ПАО «Сургутнефтегаз» возникают осложнения, связанные с ухудшением технологических свойств промывочной жидкости при повторном применении бурового раствора на основе природных полимеров. В целях ликвидации осложнений предлагается рассмотреть компонентный состав бурового раствора – хлоркалиевый буровой раствор по рецептуре № 9 и 9.1. В данной статье рассмотрены три предлагаемых технологических решения, которые имеют научно-практическую значимость и рекомендованы к проведению опытно-промышленных работ.
When drilling wells at the fields of PJSC Surgutneftegas, complications arise associated with the deterioration of the technological properties of the drilling fluid when reusing drilling mud based on natural polymers. In order to eliminate complications, it is proposed to consider the component composition of the drilling mud – potassium chloride drilling mud according to recipe No. 9 and 9.1. This article examines three proposed technological solutions that have scientific and practical significance and are recommended for pilot industrial work.
Kehamilan Dini Remaja Kristen: Upaya dan Evaluasi Pendampingannya di Rumah Singgah Griya Welas Asih Semarang
Authors: Minggus Minggus , Amaya Rosa 
Published: December 2024

Researchers intend to understand the reasons behind the phenomenon of teenagers experiencing early pregnancy outside of official marriage and provide assistance. How teenagers struggle with self-acceptance and what efforts they make to overcome the tension: between discomfort on the one hand and the urgent need to adapt to environmental demands. Assistance is carried out by means of observation and interviews. There were 10 Christian teenagers who were accompanied, aged 12-19 years, unmarried, pregnant, and domiciled in the city of Semarang, as well as several cities in Central Java. The results of the assistance showed that the ten teenagers had gone through a period known as a chaotic period, where they felt embarrassed, afraid, confused, and even had the desire to abort their pregnancies. This can be overcome with the support provided by family and close friends. On the other hand, this activity emphasizes the importance of measurable and sustainable assistance so that teenagers have a better perspective and attitude in life than before.
ALTERAÇÕES MORFOLÓGICAS E FUNCIONAIS DO DIAFRAGMA EM UNIVERSITÁRIOS ATIVOS AVALIADAS COM ULTRASSOM CINESIOLÓGICO
Authors: Pires Laís Leite , Almeida Kemile Pereira de , Araújo Gilderlene Alves Fernandes Barros , Cunha Francisco Valmor Macedo , Guimaraes Ângelo Eduardo Vasconcelos 
Published: December 2024

Introdução: A excursão e a mobilidade do diafragma são alterações morfológicas que podem ser observadas pelo ultrassom cinesiológico, suas mudanças em resposta aos exercícios globais ainda não são precisas. Objetivo: Avaliar as alterações morfológicas e funcionais do diafragma em universitários ativos avaliados com ultrassom cinesiológico. Materiais e métodos: trata-se de uma pesquisa de série de casos onde foram avaliados 14 indivíduos fisicamente ativos do sexo masculino, utilizando ultrassom com transdutor linear e convexo no modo M e B em respiração espontânea. Resultado: Participaram do estudo 14 pessoas do sexo masculino com idade entre 18 e 39 anos, observou-se que todos os indivíduos praticavam atividade física regular, todos os participantes que iniciaram a pesquisa concluíram. Foi observado que esses participantes apresentaram fração de espessamento média de 22,65%, espessura da inspiração 1,77 mm, espessura da expiração de 1,42 mm e mobilidade do diafragma 1,80 cm. Conclusão: A ultrassonografia é um método prático e importante na avaliação do diafragma, permitindo a avaliação dos seus aspectos morfocinesiologicos. Esta pesquisa concluiu que a espessura do diafragma e a mobilidade do diafragma não sofreram aumentos significativos com a prática de atividade física. Entretanto, é recomendada a realização de estudos que avaliem os efeitos de um treino monitorizado.
VIOLÊNCIA CONTRA MULHER: O PAPEL DO ENFERMEIRO NO COMBATE
Authors: Pinheiro Nevane Vieira , Souza Aline Lima , Miranda Ana Sara Magalhães , Leite Lívia Farias , Silva Monique Franco da , Azevedo Raissa Cristine Cardoso , Oliveira Adriano dos Santos 
Published: December 2024

O presente estudo objetivou compreender o papel do enfermeiro no combate à violência contra o gênero feminino, lembrando sempre que essa tipologia de violência não faz distinção de cor, raça, idade, socioeconômico ou cultural, está enraizada na sociedade de maneira estrutural e permeia em todos os continentes, portanto, um problema mundial que tem preocupado as autoridades internacionais (ONU), o tema vem sendo discutido em debates ganha notoriedade por meios de comunicações no combate onde vítimas de violência podem denunciar seu agressor, esse pesquisa trouxe reflexões relevantes a respeito do combate a violência contra mulher em seu domicílio em um cenário de comunidade, e o papel do enfermeiro é a peça mais importante no combate à violência ao realizar o acolhimento, escuta qualificada, raciocínio e julgamento rápido para a tomada de decisão na redução de danos psicológicos e agravos na saúde, discutindo a importância de manter os profissionais atuantes no combate à violência. Logo surge o questionamento: “como fica a segurança destes profissionais que são de grande valia?”, sendo necessário instaurar o chamamento da comunidade de fortalecimento de vínculo em roda de conversa com maior concentração, o gênero masculino, além de temas como: violência doméstica, alcoolismo e outros assuntos pertinentes ao tema, palestras constantes com profissionais de Segurança Pública em conjunto com profissionais de Saúde, outra ideia é colocar dentro das APS postos policiais, onde a comunidade entenda que saúde e segurança pública são direitos de todo cidadãos, esse traçado confere proximidade e vínculo APS & Educação, já é uma realidade hoje, criar projetos de lei que unifique essas esferas públicas que cumpram seu papel de educar, prevenir e assegurar.
A Survey Study of the Factors of School Life on Mental Health
Authors: Cai Jolynn 
Published: December 2024

This survey study explores the different factors contributing to the stress levels of students in a school district in California. This survey, distributed with the help of the district, focuses on the ways in which the students’ demographic information, academics, personal activities, and school life influence the mental health of the student body. Through the comprehensive questions asked in the various sections of the survey, the students were able to share their thoughts about the ways in which they believed different aspects of their experiences contributed to their well-being. Interestingly, the findings suggest that grade level, gender identity, and transportation methods primarily contribute to the stress levels of students. The study did find a correlation between the stress levels of the student and their satisfaction with their respective schools and teachers. However, more research should be done to determine the directionality of the relationship. Additionally, the study advocates for more communication among distinct school administrations and students, more up-to-date infrastructure, and opportunities for creative expression in order to nurture a safer and healthier environment for students to engage in to reach their full potential.
Bidirectional Associative Memories for Adaptive Rule Based Systems
Authors: Hewahi Nabil M. 
Published: December 2024

<p>In this paper we present an algorithm for rule based systems that uses Bidirectional Associative Memories (BAMs) to memorize the inputs and their corresponding outputs, and outputs and their corresponding inputs of the system. Adaptive rule based system are becoming very important because rule based systems are now used in many applications. One drawback of current adaptive rule based systems is that these systems care only about forward chaining mechanism which diminish their performance. Because most of the applications that use rule based systems follow the forward chaining, adaption attempts which is concerned with predicting the inputs given the output is almost null, but this does not eliminate the importance of backward chaining since it is used in too many applications. To tackle this problem we propose a new algorithm that utilizes the good theoretical ground of BAMs to memorize and adapt rules in rule based systems. The main difference between the proposed algorithm and other algorithms is that the proposed algorithm is simple to code the rules and adapt them. In addition, because BAMs supports bi-directions, the proposed algorithm is the only algorithm with adaptation that is able to expect what conditions should be true if we provide the system with outputs. The proposed algorithm considers "and" and "or" rules in the used rules, whereas in all the previous systems, only "and" relation is considered. The proposed solution will be useful in adapting any rule based system whether it uses forward chaining or backward chaining, which is considered to be a significant contribution. The proposed algorithm has six parts; cod table creation, input and output vectors construction, weight matrix calculation, procedure to test the system, procedure to run the proposed algorithm and finally rule extraction or what we call rule code decoding. To illustrate parts of the proposed algorithm, a simple example is provided.</p><p> </p>
The Relationship between Sociability and Professional "Burnout" of Medical Workers with Different Professional Experience
Authors: Shurukhina Galina A. , Shayakhmetova Elvira Sh. , Biktagirova Alsu R. , Matveeva Lyudmila M. , Karamova Elvira I. 
Published: December 2024

<p>The article considers the professional "burnout" from the standpoint of "emotional exhaustion", "depersonalization" and "reduction." The study of sociability performed by the system-functional approach of A.I. Krupnov, in which sociability is understood as a system of stable instrumental-style and motivational-semantic characteristics that provide the state of readiness and desire of the subject to interpersonal interaction. As a result of empirical research, it was revealed that medical staff (nurses), regardless of professional experience, are less susceptible to emotional “burnout” with an egocentric orientation of sociability.<strong> </strong>The specificity of the relationship between sociability and indicators of professional "burnout" among specialists with less work experience is manifested in the absence of significant associations of sociability variables with <em>depersonalization</em>. The specifics of the links of the interns are expressed in the relationship of social orientation and personal difficulties of sociability with the subjective perception of their professionalism, as well as in a larger number of connections of variables of sociability, instrumental-dynamic subsystem, increasing the risk of emotional exhaustion in professional activity.</p><p> </p>