bluuebunny/crossref_metadata_2025 huggingface dataset:
Analysis of the effect of Dividend policy, Debt Policy on Firm Value with Profitabilits as an Innterveneing Variable in Manufacturing Companies Listed on the Indonesia Stock Exchange for the period 2018-2022
Authors: Kodi Hutriana , Wiyono Gendro , Rinofah Risal
Published: September 2024

The study is entitled “The Effect of Dividend Policy, Debt Policy on Firm Value with Profitability as an Intervening Variable in Manufacturing Companies listed on the Indonesian Stock Exchange 2018-2022 Period”. With the aim of knowing the results of the analysis of the effect of dividend policy (DPR) on firm value (PBV), to find out the results of the analysis of the effect of debt policy (DER) on firm value (PBV), to find out the results of the analysis of the effect of profitability (ROA) on firm value (PBV). ), to find out the results of the analysis of the effect of dividend policy (DPR) on profitability (ROA), to find out the results of the analysis of the effect of debt policy (DER) on profitability (ROA) in Manufacturing Companies listed on the Indonesia Stock Exchange in 2018-2022. And to prove the results of the analysis of the influence of dividend policy (DPR), debt policy (DER) on company value (PBV) with profitability (ROA) as an intervening variable. Sample selection used a purposive sampling technique using certain criteria so that 46 samples were obtained that met the criteria. Data analysis uses multiple linear regression and path analysis. The research results show that dividend policy influences company value, debt policy influences company value, profitability influences company value, dividend policy influences profitability, debt policy influences profitability and profitability is able to mediate the relationship between dividend policy and debt policy on company value.
Pengaruh Inflasi dan Pertumbuhan Ekonomi terhadap Tingkat Pengangguran dengan Variabel Intervening Indeks Pembangunan Manusia (IPM) di Provinsi Jambi
Authors: Rasyida Sapa Atul , Mailindra Wiyan , Sumanti Eva
Published: September 2024

This research aims to determine the effect of inflation and economic growth on the unemployment rate with the human development index (HDI) as an intervention in Jambi Province. The data used in this research are data on inflation, economic growth, unemployment rates and HDI for the 2014-2023 period obtained from the Central Statistics Agency (BPS), the method used is quantitative descriptive using multiple regression analysis tools. The results of the research show that partially and simultaneously the variables inflation, economic growth and HDI have no significant effect on the unemployment rate variable in Jambi Province for the 2014-2023 period
Pengaruh Maqashid Syariah Index, Islamicity Performance Index dan Debt Equity Ratio terhadap Profitabilitas dengan Intellectual Capital sebagai Variabel Moderating pada Bank Umum Syariah di Indonesia
Authors: Izati Hanifa Al , Nengsih Titin Agustin , Rahman Fuad , Mubyarto Novi
Published: September 2024

This study aims to determine and test the effect of the Sharia Index Maqashid Index, Islamic Performance Index, and Debt Equity Ratio on the profitability of sharia commercial banks in Indonesia, using intellectual capital as a moderation variable. This study uses quantitative research methodology and takes secondary data from the annual financial statements of Indonesian Sharia Commercial Banks in 2018-2022. The sample of eight banks was selected through the use of purposive sampling. Data analysis techniques are called Moderated Regression Analysis (MRA). The results of this study are as follows: (1) Sharia Maqashid Index has no influence on profitability; (2) Islamic performance index has an influence on profitability; (3) Debt Equity Ratio has a negative influence on profitability; (4) Intellectual Capital can moderate the influence of the Sharia Maqashid Index on profitability; (5) Islamic performance index of profitability cannot be moderated by intellectual capital; and (6) Intellectual Capital can moderate the effect of debt equity ratio on profitability.
Pengaruh Influencer Marketing terhadap Keputusan Pembelian (Survei pada Konsumen Ms Glow di Sumedang)
Authors: Yusanda Eliana , Halim Prihartono Aksan
Published: September 2024

This research aims to find out how big the effect of influencer marketing is on purchasing decisions for MS Glow products in Sumedang. This research used a descriptive quantitative approach with a population of 1,458 people and a sample of 94 people using the Slovin formula. Data was collected using an online survey using a Likert scale. Data analysis uses simple regression. The research results show that there is a significant influence between the influencer marketing variable on the purchasing decision variable.
Optimizing Company Value: Size, Governance and Financial Performance on the Indonesian Stock Exchange
Authors: Ciptha Andrea , Alamsyahbana Muhammad Isa , Sarazwati Raja Yulianita , Indriaty Novica
Published: September 2024

This study aims to investigate how the size of a company and its adherence to good corporate governance affect its value, with a focus on food and beverage companies listed on the IDX during the period from 2020 to 2022. The research sampled 37 companies using purposive sampling. It employed a quantitative approach, with data collected through literature review and web searches, primarily from official agency websites providing relevant reports. Data analysis was conducted using the Econometric Views (E-Views) 12 application. The findings indicate that while company size and good corporate governance do not directly impact financial performance, they do influence company value when financial performance serves as an intermediary variable.
Financial Management Behavior with Locus of Control as an Intervening Variable: Impact of of Financial Knowledge and Income Level
Authors: Sudarmawanti Erna , Mar'ati Fudji Sri , Ningrum Diah Kusuma
Published: September 2024

Micro, Small, and Medium-Sized Enterprises (MSMEs) are business sectors that offer a range of goods and services and play a significant role in developing new industries as a solution to the unemployment issue. MSMEs have a huge potential to boost local economic activity and provide the majority of people with a source of income, which would improve welfare. MSMEs are still growing, but it is not slow and stagnant growth because of issues including capital constraints, a lack of utilization of information and technology, and poor financial literacy in managing company finances. The primary data for this study came from questionnaire surveys that were conducted directly. The results of the study allow for several inferences: The degree of income and financial literacy has a significant impact on where control is placed. The way people handle their money has a huge bearing on their financial knowledge. The majority of the time, people's financial management is unrelated to their degree of income. The behavior of financial management is significantly influenced by the locus of control. Financial knowledge has a significant impact on financial management behavior through the locus of control. The placement of control is substantially influenced by income and financial literacy levels. The way people handle their money has a huge bearing on their financial knowledge. The way people manage their finances is mostly independent of their income level. The behavior of financial management is significantly influenced by the locus of control. Financial knowledge has a significant impact on financial management behavior through the locus of control.
Pengaruh Pendidikan dan Pelatihan, Kompensasi terhadap Kinerja Petugas Aviation Security (AvSec) Melalui Motivasi Kerja di Bandara Sultan Thaha Jambi
Authors: Erdiansyah Nove , Syekh Saiyid , Yamali Fakhrul Rozi
Published: September 2024

This research aims to analyze the influence of education and training, compensation on the performance of Aviation Security (AvSec) officers through work motivation at Sultan Thaha Jambi Airport. The method used in this research is descriptive verification and quantitative methods, with a sample size of 46 people. This research uses the PLS analysis method. The research results show that 1) education and training variables have a positive and significant effect on work motivation, but compensation variables do not have a significant effect on work motivation; 2) education and training variables, compensation variables and work motivation variables have a positive and significant effect on performance; and 3) education and training variables have a positive and significant effect on performance through work motivation, but compensation variables do not have a significant effect on performance through work motivation for aviation security (AvSec) officers at Sultan Thaha Jambi Airport.
التحديات التي تواجه أُسر أطفال فرط الحركة وتشتت الانتباه في ظل التغيرات الاجتماعية والاقتصادية في مدينة الطائف
Authors: امــــانـي عـبـيــدالله عـلي ابـوزاهــره
Published: September 2024

سعى هذا البحث إلى استكشاف وتحليل التحديات المتعددة الأبعاد التي واجهتها هذه أسر أطفال اضطراب فرط الحركة وتشتت الانتباه حيث تضمن أهدافًا رئيسية تتمثل في تحديد الضغوط الاجتماعية والنفسية، والتحديات التعليمية والخدمية، إضافة إلى تحليل التحديات المهنية والعاطفية والسلوكية التي واجهتها الأسر. أُستخدم المنهج الوصفي لجمع البيانات من خلال استبيان تم توزيعه على 48 من أولياء أمور الأطفال المصابين باضطراب فرط الحركة وتشتت الانتباه، الذين ترددوا على مركز النمو والسلوك في مدينة الطائف في الفترة من يناير إلى مايو 2024. تكون الاستبيان من قسمين: الأول: البيانات الشخصية والديموغرافية، والثاني: التحديات التي واجهتها الأسر في مجالات متعددة كالمشكلات الاجتماعية والنفسية والتعليمية. أظهرت النتائج أن الضغوط الاجتماعية والنفسية مثلت تحديات كبيرة للأسر، حيث عانت الأمهات بشكل خاص من مستويات ضغوط أعلى، والأسر ذات الدخل المنخفض واجهت تحديات أكبر في الحصول على الخدمات التعليمية والعلاجية المناسبة. بالإضافة إلى ذلك، أظهرت النتائج أن عدد الأطفال في الأسرة وجنس الطفل المصاب أثرا بشكل كبير على شدة التحديات التي واجهها الأهل. خرج البحث بتوصيات عملية لتحسين الدعم المقدم لأسر الأطفال المصابين باضطراب فرط الحركة وتشتت الانتباه، بما في ذلك تعزيز البرامج التعليمية والتوعية، وتوفير الدعم النفسي والاجتماعي، وتسهيل الوصول إلى الخدمات العلاجية.
Job Satisfaction and Generational Difference: The Shifting Nature of the Workplace
Authors: Andrade Maureen Snow , Westover Jonathan H. , Clark Silvia , Schill Angela
Published: September 2024

This study investigates job satisfaction across different generational cohorts within the workforce. It explores how intrinsic rewards, extrinsic rewards, work relations, work-life balance, and employee activation variables influence job satisfaction among these groups. A web-based survey was conducted across the United States, involving 566 participants. Regression analysis was used to identify significant predictors of job satisfaction for each generational cohort. The results revealed that interesting work significantly predicts job satisfaction for all generations, with the strongest impact observed in Generation Z. baby boomers, Generation X, and millennials reported high levels of satisfaction with pay and relations with management. The study highlights distinct generational preferences, contributing to a nuanced understanding of job satisfaction drivers.
Assessing Organizational Culture in Real Estate Brokerages: Links to Real Estate Agent Success
Authors: Koutroumanis Dean A. , Thomason Stephanie J.
Published: September 2024

Real estate agents interested in maximizing their sales commissions may consider the impact of their brokerage firm’s organizational culture on their incomes. They may also seek to understand whether the size and age of their brokerage firms correspond to four popular organizational culture types: clan, hierarchical, market, and adhocracy. A survey distributed to United States real estate agents was analyzed to examine these relationships. The results supported hypotheses indicating that clan cultures were dominant in small firms with 20 or fewer employees and in younger firms under six years, while market cultures prevailed in larger and older firms. Additionally, market and adhocracy cultures correlated positively with brokerage firm size, and adhocracy cultures were more prevalent in younger firms. Real estate commissions were highest in companies with market culture features, followed by clan, adhocracy, and hierarchical cultures. Linear regressions and bootstrapping further supported a negative relationship between hierarchical cultures and real estate commissions and a negative relationship between adhocracy cultures and the age of firms. Theoretical and practical implications are discussed.
Life Science Case Examples Using the Quick Screen Tool for Opportunity Assessments
Authors: Friedrich Ryan , Lee Joon Seok , Salih Rayan K. , Boni Arthur A. , York John M.
Published: September 2024

Innovations are plentiful in the biopharma landscape but often fail to reach commercialization. This paper addresses the research question: How can a tool efficiently assess life science opportunities to go to market successfully? This paper analyzes three case studies using the quick screen tool, culminating in a scorecard that reflects commercial potential and readiness. COASTAR’s score of 1.95 represents strong potential despite lacking clinical validation, while JD Bioscience’s score of 2.87 reflects unique attributes and developmental risks. Reviva’s score of 3.08 highlights strong intellectual property and competitive challenges. The quick screen tool simplifies decision-making, with simple rules enhancing heuristic strategies.
Does Denomination Influence Pastors’ Readiness for Retirement? Evidence From Southern California Pastors
Authors: Paeng Seongcheol , Park Daniel
Published: September 2024

This study explores retirement issues among pastors. Recent studies indicate that many pastors work past retirement age due to financial unpreparedness. We examine whether retirement preparedness and job satisfaction vary by denomination. We focus on three key retirement concerns: retirement comfort, overall job satisfaction, and financial satisfaction. Using survey data from Southern California pastors, we find that Methodist pastors are more prepared for retirement compared to others, while Presbyterian pastors are less content with their roles than other denominations. However, denomination does not significantly affect the financial satisfaction of pastors.
Investor Perception of Corporate Social Irresponsibility (CSiR) and Investing Decisions
Authors: Zaima Janis K. , Yacobian Marianne Marar , Turner Frances
Published: September 2024

The study examines a behavioral finance paradigm, where investors incorporate emotional/expressive and financial factors. The impact of emotional ties to the firm’s products and an expressive factor such as corporate social irresponsibility (CSiR) are examined to determine whether their investment decisions are based on them. We find that investors make decisions that are wealth maximizing as well as emotional/expressive. Moreover, we find that our respondents believe corporate profits should not come from using the cheapest labor nor from engaging in CSiR behavior, and they would be less likely to invest in such a firm.
Evaluation of the Potential of AI to Foster Gender Diversity in Leadership Positions in Germany
Authors: Domrös-Zoungrana Dina , Hernandez Ana , Crockett Carolin , Bölke Alisa , Diaz Ruiz de Zarate Alma , Lutz Bettina , Lenz Christian
Published: September 2024

Women remain underrepresented in leadership positions in Germany. This article explores whether AI could support gender diversity in leadership. After analyzing current diversity data, we identified hurdles for women in leadership from literature. We evaluated AI’s potential to promote gender diversity through examples of AI tools from professional and private life. Four potential areas for AI assistance were identified: i) recruitment, ii) personalized time-management, iii) career development, and iv) networking and mentoring. These AI tools could particularly benefit women by addressing identified obstacles. The literature on this specific topic is limited, making this article a valuable foundation for further research.
Reflective Questions: Promoting Metacognition Through Discussion Board Prompts
Authors: Kaw Autar , Lim Guinevere Tiara , Clark Renee M.
Published: September 2024

During two semesters, a numerical methods course for mechanical engineering students at a large US southeastern university used discussion board questions to promote reflection and metacognition. The course covered eight chapters, each with a related discussion question. The students could choose to answer these questions and receive 2% extra credit for the course. This was intended to help the students who missed some of the 30 online homework assignments that comprised 15% of the final course grade. The questions were also meant to encourage the students to think deeply and creatively. The students could see other students’ responses after they posted their own. The questions ranged from making a meme, writing a nursery rhyme, and explaining a complex or easy concept. Only 64% of the total possible responses were submitted by students, and there was a small-to-medium practical but no statistical significance between the levels of participation among the high- or low-performing students. The submissions were analyzed and determined to be at the low level of Bloom’s taxonomy. They identified complex topics to inform future instruction.
Consumer Product Perceptions Within Emerging Markets: The Product Adoption Process and Consumer Ethnocentrism
Authors: Sahagun Miguel , Carter Larry L. , Vasquez-Paraga Arturo
Published: September 2024

The general acceptance of globalization and free trade across most national governments has led to the massive proliferation of foreign goods across the globe within the past few decades. As a result, the consumer adoption of imported products has been researched extensively; however, the bulk of these studies have focused on developed countries, leaving less developed and emerging countries vastly unexplored compared to their developed counterparts. Using Mexico to represent an emerging market with high levels of consumer ethnocentrism, this study examines the relationships among consumers’ attitudes toward imported products, their behavioral intentions, and consumer ethnocentrism within the product adoption process framework. The results provide evidence of positive direct effects of attitude and behavioral intention towards imported products. The hypothesis that the product adoption process leads to purchase intention was also supported; however, there was insignificant evidence to support the proposed moderating effect of consumer ethnocentrism upon this product adoption process and purchase intention relationship.
Empowerment Evaluation’s Practice and Principle Effects on Psychological Empowerment and Self-Determination Outcomes
Authors: Sheldon Jeff
Published: September 2024

This study contributed to a limited body of research on empowerment evaluation by examining its processes, principles, and outcomes. Objectives included: 1) determining implementation fidelity to the three empowerment evaluation models; 2) determining evidence of empowerment evaluation process principles; 3) determining whether empowerment evaluation outcome principles resulted from the evaluations reported on; and 4) determining whether variation in empowerment and self-determination was explained by the interaction between model fidelity and percentage of steps implemented, process principles in evidence, outcome principles in evidence, and evaluator characteristics. Results indicated individual empowerment and self-determination were likely outcomes of evaluations reported on; evidence of all ten empowerment evaluation principles indicated they were empowerment evaluations; evaluators adhered with fidelity to all three models, no model was privileged over another, and steps were chosen from across all three models. Empowerment and self-determination are more likely when empowerment evaluations are conducted by female evaluators living and working in an African country and SEEPPO was a successful first attempt at assessing the process and outcomes of empowerment evaluation work.
Development of Dark Triad Scales for Machiavellianism, Psychopathy and Narcissism From the Hogan Development Survey
Authors: Coleman Brendan , Dulewicz Victor
Published: September 2024

Dark Triad personalities (DT: psychopathy, narcissism and Machiavellianism) adversely affect organisational functioning. There were three research questions: (1) Can DT personality measures be derived from the Hogan Development Survey (HDS)? (2) Will age, tenure, and gender moderate the relationships between the DT personality measures and job performance? (3) What are the relationships between scores on the DT personality measures? Four hypotheses were framed from the research questions and tested on a sample of 918 managers. Three new DT scales were derived from the HDS, using a mapping exercise based on Ferrell and Gaddis’s (2016) research findings. All scales showed acceptable Alpha reliabilities. The mapping exercise provided evidence of construct validity. An analysis of high scorers on pairings of the three DT scales showed divergent validity. Partial correlation results showed significant negative correlations between psychopathy, narcissism, Machiavellianism and job performance, demonstrating criterion validity. Organisations could use the new DT scale scores for screening applicants, for identifying future management potential and providing developmental feedback to employees.
Digital Transformation of Organizations and Their Organizational Cultures: A Case Study in a National Defense Industry
Authors: Kapotas Spyridon
Published: September 2024

Digital transformation is essential for organizations to gain a competitive edge in today’s fast-changing environment. It involves a radical shift in products, services, people, and processes to enhance performance, posing a significant challenge. This paper explores digital transformation within a national defense company, which already upholds high-quality standards and a strong culture—key factors in facilitating digital transformation. The literature on organizational digital transformation and its benefits is reviewed, and the digitalization process is analyzed to outline the steps needed for transformation. A crucial prerequisite is cultivating an adaptive, high-performance culture, which requires assessing the current organizational state and implementing necessary actions. This paper presents an assessment of the company and proposes actions for cultural and digital transformation. The inextricable link between digital transformation and organizational culture change is highlighted, along with the benefits, barriers, and strategic proposals for digital strategy, vision, and mission.
Social Work Crime as an Alternative to Resolving Overcrowding in Correctional Institutions
Authors: Kholdaa Madya Cinta , Pujiyono Pujiyono
Published: September 2024

Overcrowded in correctional facilities results from various factors, including increased inmate numbers due to prevailing prison sentencing policies, judicial inefficiencies in handling detainees, and high recidivism rates. The consequences of overcrowding are severe, impacting the ability to meet inmates' basic needs, leading to poor sanitation and health conditions, and reducing the effectiveness of rehabilitation programs. Social work penalties, adopted in several countries, offer a rehabilitative approach that focuses on social reintegration rather than isolation through prison sentences. These penalties help facilitate inmate recovery by involving them in beneficial community activities such as environmental care or social services. This research employs a normative juridical methodology, utilizing document analysis of relevant legal and literature sources. Data are qualitatively analyzed, considering legislative regulations, legal literature, and related research findings. The study aims to contribute to more effective policy formulation for managing overcrowding in correctional facilities and to consider more humane and rehabilitative sentencing alternatives
PENANAMAN KESADARAN PENTINGNYA MOTIVASI BELAJAR SEBAGAI UPAYA MENUMBUHKAN SEMANGAT BELAJAR PADA SISWA
Authors: Aureli Rahmadani Debby , Rofieq Ainur , Turmudi Zy Ahmad
Published: September 2024

Education is an important aspect in growing and developing one's potential to realize what one dreams of. To achieve your goals you need motivation or encouragement to do something. This seminar activity aims to instill awareness of the importance of learning motivation in fostering enthusiasm for learning in Class 6 students at SDN Karangsegar 02, Karangsegar Village, Pebayuran District, Bekasi Regency. The research method was carried out using observation techniques, interviews and filling out questionnaires from Sardiman figures. The seminar was conducted using lecture and role play methods. The results of the seminar were very significant and could be said to be successful because based on the post test all participants were able to understand the material presented well. It is hoped that after attending this seminar the students will be motivated to be enthusiastic about learning and will ultimately become successful people according to their respective desires.
PENCEGAHAN OVERHEATING MELALUI EDUKASI PERAWATAN PADA KENDARAAN RODA DUA
Authors: Fajarudin Adam , Hasibuan Akmal Rizki Gunawan , Marginingsih Ria
Published: September 2024

Overheat is a condition when a vehicle's engine temperature reaches a higher level than it should and cannot be maintained at a normal operating temperature. This is a serious problem that can cause damage to the engine if not addressed immediately. The purpose of this community service program is to prevent overheating in Sukaragam Village by educating the community about two-wheeled vehicle maintenance. Therefore, this community service aims to complete community service by providing counseling on simple maintenance of motorized vehicles. The community service method applies counseling in the form of brief socialization and training on how to care for motorbikes to avoid overheating. The success of this community service activity is expected to reduce cases of overheating in two-wheeled vehicles in the community. With a better understanding of vehicle maintenance, it is hoped that the community can take preventive actions such as checking the condition of the engine coolant regularly, using the appropriate oil, and avoiding driving when the engine is too hot. This not only improves driving safety, but also extends the life of the vehicle and reduces repair costs. In addition, this activity also contributes to reducing exhaust emissions produced by motor vehicles, thus supporting environmental conservation efforts.
IMPLEMENTASI RUMAH TAMAN BACA DALAM MENINGKATKAN BUDAYA LITERASI DI DESA CILANGKARA
Authors: Nuraini Ade Indah , Ash Shabah Musyaffa Amin , Rahmawati Rafika
Published: September 2024

Reading parks are places to collect various reading materials and care for literacy, especially for the surrounding community. Literacy culture needs to be improved along with the times and technological advances. The implementation of this program is to build reading parks starting from early childhood to elementary school children and all students who need to be encouraged from an early age about the culture of literacy so that they are not complacent and addicted to technology. Reading is the main capital for the progress of all students, therefore reading hobbies need to be grown in society from an early age. Indonesia is a country with a very low literacy culture, to the point that UNESCO states that Indonesia is in the second lowest position in the world. This is very concerning. Therefore, this community service in KKN increases interest in reading by starting from the smallest scope, namely by establishing a Reading Park in Cilangkara Village, Serang Baru District. The purpose of this service is to increase interest in reading among children and adolescents in Cilangkara Village. The community service method applies community education. The results of the service have a significant impact in the form of easier access to various reading materials, thus encouraging interest in reading among the community.
Совершенствование расчета элементов стальных конструкций на прочность при общем загружении
Authors: БЕЛЫЙ Григорий Иванович , ГАРИПОВ Азат Ильшатович
Published: September 2024

Расчет элементов стальных конструкций на прочность по СП 16.13330.2017 на стадии развития пластических деформаций до предельного значения, в подавляющем числе случаев комплексного загружения (кроме действия продольной силы с изгибом в плоскости большей жесткости), выполняется в виде суммы соотношений усилий к своим предельным значениям без учета взаимного влияния, что приводит к заниженным результатам. Предложен метод исследования прочности без указанного недостатка. Решение задач в соответствии с ним проводится в обратной последовательности, в безразмерных параметрах, что позволило сократить время расчета на несколько порядков и получить большой объем новых достоверных результатов. На основании анализа последних в части взаимного влияния усилий разработан эффективный практический метод расчета на прочность широко распространенных в практике металлостроительства двутавровых и прямоугольных трубчатых элементов при двух и более параметрических загружениях, включая действие поперечной силы и бимомента. Эффективность подхода оценена по двум параметрам - резервам прочности элементов, рассчитанных по действующим нормам проектирования, и экономии стали при проектировании новых конструкций. При двухпараметрических загружениях резервы прочности составляют 4-32 %, экономия стали равна 4-20 %. Исследования трехпараметрических загружений выявили несколько большие показатели эффективности.
Физико-механические и реологические характеристики высокопрочного бетона и гранита
Authors: БЕЗГОДОВ Игорь Михайлович , КАПУСТИН Дмитрий Егорович , ЕФИШОВ Лука Игоревич
Published: September 2024

Для изготовления бетонов высокой прочности используют гранитный щебень. Физико-механические и реологические свойства гранита могут оказывать воздействие на свойства бетона, поэтому важно знать его фактические прочностные и деформационные характеристики. В статье сопоставлены свойства высокопрочного бетона и гранита двух различных месторождений. Получены полные диаграммы деформирования при сжатии, прочность и деформативность на растяжение при изгибе, а также ползучесть бетона и гранита при относительном уровне нагружения. Проанализировано изменение модуля деформации, коэффициента поперечной деформации и объемных деформаций в процессе нагружения. Отмечено существенное различие процесса деформирования высокопрочного бетона и гранита. Несмотря на высокие показатели прочности при сжатии и растяжении при изгибе, гранит обладает меньшим модулем упругости и меньшей ползучестью. Получена значительная прочность бетона на растяжение при изгибе, связанная с низким водоцементным отношением в составе бетона. Установлено, что регулируя свойства компонентов состава, можно получать бетоны, обладающие высоким модулем упругости и низким значением деформации усадки и ползучести, что весьма актуально при строительстве высотных зданий и преднапряженных конструкций.
Оценка сжимаемой толщи оснований фундаментов при численном моделировании
(В порядке обсуждения)
Authors: ФОМЕНКО Игорь Константинович , ЗЕРКАЛЬ Олег Владимирович , ГОРЛОВ Андрей Александрович , АВЕРИН Игорь Вячеславович , ШУБИНА Дарья Дмитриевна
Published: September 2024

Расчет оснований по второй группе предельных состояний является обязательным при проектировании объектов. На практике расчет осадок фундаментов выполняется на основе модели линейно деформируемого полупространства по схеме линейно деформируемого слоя. Одно из проблемных мест этой методики - рост осадки основания при увеличении учитываемой глубины грунтового массива. Для получения значений осадок зданий здесь используется эмпирический параметр - глубина сжимаемой толщи основания (расчетная область). Согласно нормам деформациями грунтовой толщи ниже этой зоны можно пренебречь. Эффективность численного моделирования зависит от корректности назначения граничных условий, в частности размеров расчетной области. Показано, что определение размера данной области на основе расчета глубины сжимаемой толщи по эмпирической методике недостаточно корректно. Выявлены значения зоны характерного перегиба графика влияния глубины расчетной области на величину осадки. При назначении расчетной области менее установленного диапазона будет происходить недооценка значения осадки фундамента. В дальнейшем требуется внесение уточнений в нормативные документы, регламентирующие расчет осадок зданий и предъявляющие требования к проведению инженерных изысканий, представляющих исходные данные для проведения таких расчетов.
Evaluation of Plasmodium berghei Models in Malaria Research
Authors: Otun Sarah Oluwatobi , Graca Richard , Onisuru Olalekan , Achilonu Ikechukwu
Published: September 2024

As a key model organism for studying malaria, Plasmodium berghei provides essential information on pathophysiology, host immunological responses, and possible targets for treating this debilitating illness. This narrative review compares other Plasmodium species models, including P. falciparum and P. vivax, to assess the evolution, traits, and applicability of P. berghei models. We discuss the development of P. berghei research and its historical background, emphasizing its advantages in genetic modification and experimental accessibility. The difficulties and constraints these models have, as well as new methods and prospects for their development in the future, are discussed. This study highlights the potential of P. berghei models for translating malaria research and creating efficient control methods by combining important discoveries and comparative studies. This thorough assessment seeks to maximize the use of P. berghei in the battle against malaria and to direct future research endeavors.
Linking Phosphoinositides to Proteins: A Novel Signaling Pipeline
Authors: Carrillo Noah D. , Awasthi Poorwa , Lee Jeong Hyo , Wen Tianmu , Chen Mo , Sterling Colin , Wolfe Trevor J. , Cryns Vincent L. , Anderson Richard A.
Published: September 2024

Phosphoinositide (PIPn) signaling plays pivotal roles in myriad biological processes and is altered in many diseases including cancer. Canonical PIPn signaling involves membrane-associated PIPn lipid second messengers that modulate protein recruitment and activity at membrane focal points. In the nucleus, PIPn signaling operates separately from membranous compartments defining the paradigm of non-canonical PIPn signaling. However, the mechanisms by which this non-membranous nuclear PIPn pool is established and mediates stress signaling is poorly understood. The recent discovery of a p53-signalosome by Chen et al. (Nature Cell Biology 2022) represents a new PIPn signaling axis that operates independently from membrane structures where PIPns are dynamically linked to nuclear p53 and modified by PIPn kinases and phosphatases, allowing the activation of a nuclear PI 3-kinase/Akt pathway that is entirely distinct from the canonical membrane-localized pathway. Here, we will discuss emerging insights about the non-canonical PIPn pathway, which links PIPns to a growing number of cellular targets and highlight the similarities/differences with its canonical counterpart. We will also discuss potential therapeutic targets in this non-canonical PIPn pathway, which is likely to be deregulated in many diseases.
A novel deep multimodal information fusion model for aero-engine state prediction
Authors:   Department of Aeronautics & Astronautics, Fudan University, Huang Yufeng , Sun Gang ,   Department of Aeronautics & Astronautics, Fudan University, Tao Jun ,   Department of Aeronautics & Astronautics, Fudan University, Feng Jinzhang ,   Department of Aeronautics & Astronautics, Fudan University
Published: September 2024

Condition monitoring plays an important role in the safety and reliability of aero-engine. In this paper, a novel deep multimodal information fusion (MIF) method is proposed, which integrates information from the physical-based model and the data-driven model. Two deep Boltzmann machines are constructed for feature extraction from sensor data and model simulation data, respectively. Whereby information from these two modalities is mapped into a high-dimensional space and forms a joint representation, and then combined with a multi-layer feedforward neural network to form the MIF model for real-time performance simulation and prediction. Compared with the traditional single-modality method, the proposed method fuses the information of two key modalities. The experimental results indicate that proposed method improves the accuracy of engine parameters prediction.
Application of an Improved Mixing Plane Approach for Steady-State Computations of Turbulent Flows in Turbomachinery
Authors:   Leibniz University Hanover, Suchla Dominik A. , Führing Alexander ,   MTU Aero Engines AG, Bechlars Patrick ,   MTU Aero Engines AG, Seume Joerg R. ,   Leibniz University Hanover, Wein Lars ,   Leibniz University Hanover
Published: September 2024

Steady-state simulations of turbomachinery often require the use of mixing planes in between blade rows to remove unsteady rotor-stator interactions. In multistage configurations with many mixing planes, the errors caused by this removal of information accumulate and make accurate predictions very challenging, especially at off-design operating conditions. In a recent publication, the effect of mixing planes on the production of turbulent kinetic energy is addressed with an additional differential equation. In this study, this modification is applied to steady-state simulations of a 4.5-stage and an 8.5-stage axial compressor. The boundary conditions are varied to assess the potential of this modification near the choke and surge limits of the compressors. Results are shown from simulations of both setups. The turbulent kinetic energy and eddy viscosity, as well as global performance parameters like efficiency and mass flow rate are evaluated. Based on these quantities, it is shown that the use of the modification leads to more accurate predictions compared to URANS simulations and allows for simulations closer to the surge limit. Furthermore, it is demonstrated that the modification underestimates the production of turbulent kinetic energy when a shock interacts with an upstream mixing plane.
Variable turbine geometry for an automotive turbocharger with a small axial turbine
Authors:   Leibniz Universität Hannover, Kuestner Christoph , Helmsen Eike ,   Leibniz Universität Hannover, Seume Joerg R. ,   Leibniz Universität Hannover
Published: September 2024

The paper examines the implementation of a variable turbine geometry (VTG) and the reduction of its tip leakage losses in a small axial turbine turbocharger for charging lean-burn internal combustion engines. Due to the small turbine size, a reduction in the number of vanes and a redesign was required to match the design point of the non-adjustable stator. Subsequently, discs were added to the vanes’ ends to seal the radial gaps in the VTG. The turbine size prohibited a full sealing on the hub side, leaving small gaps at the leading edge (LE) and trailing edge (TE). To evaluate their influence, three gap configurations of the adjusted design (constant hub gap, partial gaps at LE and TE, and non-gap) were compared with the initial design using CFD simulations. The results showed that the partial gap configuration was able to reduce the maximum mass flow rate deviations at the investigated turbine speed down to 0.8% while maintaining the same turbine efficiencies as the non-gap configuration. Finally, the performance map was evaluated for the partial gap configuration, which showed that the turbine required a slightly larger pivot angle range to meet the specified requirements.
Public Opinion of LGB Supreme Court Nominees
Authors: Fitch Maya
Published: September 2024

Recently, there has been an increase in political attention to the demographic characteristics of judicial nominees in the United States and how they can affect public opinion from judicial scholars. Particular emphasis has been placed on race and gender (i.e., male versus female), with comparatively less focus on the lesbian, gay, bisexual, transgender, and queer (LGBTQ) community. This paper uses a conjoint experiment to evaluate the relationship between public support and lesbian, gay, and bisexual Supreme Court nominees. The results show that the general public is less likely to support bisexual and gay nominees than straight ones. It also shows that when someone is gay (bisexual), they are more likely to support a nominee who is gay (bisexual) as well, along with a strong partisan divide in supporting gay (bisexual) nominees. These results have implications for shared descriptive representation, symbolic representation, and the support of judicial nominees.
Improving tumor microenvironment assessment in chip systems through next-generation technology integration
Authors: Gaebler Daniela , Hachey Stephanie J. , Hughes Christopher C. W.
Published: September 2024

The tumor microenvironment (TME) comprises a diverse array of cells, both cancerous and non-cancerous, including stromal cells and immune cells. Complex interactions among these cells play a central role in driving cancer progression, impacting critical aspects such as tumor initiation, growth, invasion, response to therapy, and the development of drug resistance. While targeting the TME has emerged as a promising therapeutic strategy, there is a critical need for innovative approaches that accurately replicate its complex cellular and non-cellular interactions; the goal being to develop targeted, personalized therapies that can effectively elicit anti-cancer responses in patients. Microfluidic systems present notable advantages over conventional in vitro 2D co-culture models and in vivo animal models, as they more accurately mimic crucial features of the TME and enable precise, controlled examination of the dynamic interactions among multiple human cell types at any time point. Combining these models with next-generation technologies, such as bioprinting, single cell sequencing and real-time biosensing, is a crucial next step in the advancement of microfluidic models. This review aims to emphasize the importance of this integrated approach to further our understanding of the TME by showcasing current microfluidic model systems that integrate next-generation technologies to dissect cellular intra-tumoral interactions across different tumor types. Carefully unraveling the complexity of the TME by leveraging next generation technologies will be pivotal for developing targeted therapies that can effectively enhance robust anti-tumoral responses in patients and address the limitations of current treatment modalities.
Saccharomyces cerevisiae for lignocellulosic ethanol production: a look at key attributes and genome shuffling
Authors: Tsegaye Kindu Nibret , Alemnew Marew , Berhane Nega
Published: September 2024

These days, bioethanol research is looking at using non-edible plant materials, called lignocellulosic feedstocks, because they are cheap, plentiful, and renewable. However, these materials are complex and require pretreatment to release fermentable sugars. Saccharomyces cerevisiae, the industrial workhorse for bioethanol production, thrives in sugary environments and can handle high levels of ethanol. However, during lignocellulose fermentation, S. cerevisiae faces challenges like high sugar and ethanol concentrations, elevated temperatures, and even some toxic substances present in the pretreated feedstocks. Also, S. cerevisiae struggles to efficiently convert all the sugars (hexose and pentose) present in lignocellulosic hydrolysates. That’s why scientists are exploring the natural variations within Saccharomyces strains and even figuring out ways to improve them. This review highlights why Saccharomyces cerevisiae remains a crucial player for large-scale bioethanol production from lignocellulose and discusses the potential of genome shuffling to create even more efficient yeast strains.
Kinetics and thermodynamics investigations of efficient and eco-friendly removal of alizarin red S from water via acid-activated Dalbergia sissoo leaf powder and its magnetic iron oxide nanocomposite
Authors: Nawaz Saleem , Salman Syed Muhammad , Ali Asad , Ali Basit , Shah Syed Nusrat , Rahman Latif Ur
Published: September 2024

The present work aimed to highlight an efficient, readily accessible, and cost-effective adsorbent derived from Dalbergia sissoo (DS) leaf powder for removing the environmentally hazardous dye “alizarin red S” (ARS) from hydrous medium. A variant of the adsorbent is activated via sulfuric acid and composited with magnetic iron oxide nanoparticles (DSMNC). Both adsorbents are thoroughly characterized using techniques such as Fourier transform infrared spectroscopy, point of zero charge, energy-dispersive X-ray spectroscopy, and scanning electron microscopy, which show that they have a porous structure rich in active sites. Different adsorption conditions are optimized with the maximum removal efficiency of 76.63% for DS and 97.89% for DSMNC. The study was highlighted via the application of various adsorption isotherms, including Freundlich, Langmuir, Temkin, and Dubinin–Radushkevich, to adsorption data. Pseudo-first-order, pseudo-second-order, and intra-particle diffusion models were utilized to investigate the kinetics and mechanism of adsorption. The Freundlich model and pseudo-second-order kinetics exhibited the best fit, suggesting a combination of physical interactions, as confirmed by the D–R and Temkin models. The dominant adsorbate–adsorbent interactive interactions responsible for ARS removal were hydrogen bonding, dispersion forces, and noncovalent aromatic ring adsorbent pi-interactions. Thermodynamic parameters extracted from adsorption data indicated that the removal of the mutagenic dye “ARS” was exothermic and spontaneous on both DS and DSMNC, with DSMNC exhibiting higher removal efficiency.
Modified reverse degree descriptors for combined topological and entropy characterizations of 2D metal organic frameworks: applications in graph energy prediction
Authors: Kalaam A. R. Abul , Greeni A. Berin , Arockiaraj Micheal
Published: September 2024

Topological descriptors are widely utilized as graph theoretical measures for evaluating the physicochemical properties of organic frameworks by examining their molecular structures. Our current research validates the usage of topological descriptors in studying frameworks such as metal-butylated hydroxytoluene, NH-substituted coronene transition metal, transition metal-phthalocyanine, and conductive metal-octa amino phthalocyanine. These metal organic frameworks are crucial in nanoscale research for their porosity, adaptability, and conductivity, making them essential for advanced materials and modern technology. In this study, we provide the topological and entropy characterizations of these frameworks by employing robust reverse degree based descriptors, which offer insightful information on structural complexities. This structural information is applied to predict the graph energy of the considered metal organic frameworks using statistical regression models.