bluuebunny/crossref_metadata_2025 huggingface dataset:
Seroprevalence of Anti-SARS-CoV-2 Antibodies Among Asymptomatic Healthcare Workers of Dezful Ganjavian Hospital, Southwest Iran
Authors: Mashayekhi Amir , Bashirkhabaz Mehdi , Pourmotahari Fatemeh , Reyhani Rezvan , Alebakhit Sedigheh , Ghasemi Ezatollah
Published: May 2024

Background: The 21st century has seen the emergence of the COVID-19 pandemic, caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2). Objectives: Given the elevated risk of COVID-19 transmission among healthcare workers, our objective was to assess the seroprevalence of anti-SARS-CoV-2 antibodies in asymptomatic healthcare workers at Dezful Ganjavian Hospital in 2021. Methods: A total of 276 participants were included in this descriptive cross-sectional study. The study assessed the participants' medical history, including autoimmune diseases, corticosteroid administration, and underlying conditions. Additionally, the history of previous SARS-CoV-2 infection and exposure to COVID-19 patients was recorded. Results: The results showed that 32.6% of the participants had a history of previous SARS-CoV-2 infection. No significant associations were found between the previous infection history and variables such as sex, age, corticosteroid administration, autoimmune disease, or exposure to COVID-19 patients. However, a significant association was observed between the participants' history of COVID-19 and underlying conditions. Serum analysis revealed that 10.1% of the participants tested positive for IgG anti-SARS-CoV-2 antibodies, while 1.8% tested positive for IgM antibodies. A significant relationship was found between the presence of IgG antibodies and a history of previous SARS-CoV-2 infection. Similarly, all participants with IgM antibodies had a history of previous infection. Conclusions: The study findings indicate that a significant proportion of asymptomatic healthcare workers at Dezful Ganjavian Hospital have been previously exposed to SARS-CoV-2. These results can inform infection control measures and help protect both healthcare workers and patients in the hospital setting.
The Effect of Antibiotic Therapy Before Percutaneous Nephrolithotomy on the Frequency of Postoperative Complications: A Retrospective Cross-Sectional Study
Authors: Bonyad Ali , Falahatkar Siavash , Bamdad Soofi Maziyar , Jafari Alireza
Published: May 2024

Background: Percutaneous nephrolithotomy (PCNL) is commonly used in the treatment of large renal stones. Postoperative infections are a common consequence of these procedures. Objectives: The purpose of this study is to evaluate the effects of antibiotic therapy before PCNL on the possibility of developing fever and common complications after the procedure. Methods: We carried out a retrospective cross-sectional study involving 708 patients who had undergone PCNL at Razi Hospital in Rasht, covering the period from 2012 to 2022. Patients were allocated into two groups: Group 1 included 454 patients who had received antibiotic therapy, and group 2 included 254 patients who had not received pre-operative antibiotic therapy. Results: In group 1, there were 241 males (53.1%) and 213 females (46.9%), while in group 2, there were 138 males (54.3%) and 116 females (45.7%). In group 1, 82.7% of patients treated with antibiotics had a negative culture. The hospitalization time was 4.00 ± 1.75 days for group 1 and 2.26 ± 1.56 days for group 2. Fever was observed in 39 patients (11.2%) in group 1. Sepsis was seen in only one patient (0.3%) in group 1. There is a significant relationship between total hospitalization time (P = 0.000), hospitalization after the operation (P = 0.000), hypertension (P = 0.009), ischemic heart disease (P = 0.050), history of shock wave lithotripsy (P = 0.003), hydronephrosis (P = 0.000), age (P = 0.004), and hemoglobin levels (P = 0.000) with antibiotic therapy. Conclusions: Surgeon overprescription of antibiotics may lead to resistance, complicating outcomes and extending hospital stays after PCNL. Some complications remain unaffected by antibiotic therapy due to surgical experience.
Status of Axillary Staging in Patients with Breast Cancer and Its Impact on the Management of Patients
Authors: Abbaspour Alaleh , Fazilat-Panah Danial , PeyroShabany Babak , Javadinia Seyed Alireza , Porouhan Pejman
Published: May 2024

Background: Breast cancer is most common in women, and symptoms and treatment depend on ethnicity, screening, and drug availability. The current standard for breast surgery is breast-conserving surgery (BCS) and sentinel lymph node biopsy (SLNB). However, performing axillary lymph node dissection (ALND) and the number of lymph nodes examined to determine the N stage has been insufficient in many patients, with a maximum of 10 lymph nodes assessed in patients undergoing ALND. This limitation leads to inadequate estimation and ultimately affects treatment choices. Objectives: This study examined the status of axillary staging in patients with breast cancer and its impact on management. Methods: This retrospective longitudinal cohort study included 272 breast cancer patients at Sabzevar University of Medical Sciences, Sabzevar, Iran, from 2015 to 2019. Data regarding laterality, mass location, histology, grade, in situ status, lymphovascular invasion, perineural invasion, necrosis, and AJCC TNM staging were collected. Results: Most patients were at stage two (54.1%), and the median size of the primary breast tumor was 1.3 cm (range 1 - 14 cm, mean 3.7 ± 2.1 cm). The median number of dissected lymph nodes was 8 (range 1 - 37, mean 8.3 ± 5.8); however, no lymph nodes were examined pathologically in 23% (n = 63) of patients despite undergoing ALND. Additionally, in 38.2% of patients undergoing ALND, less than 10 lymph nodes were examined, which is considered inadequate for accurate axillary staging. Conclusions: The rates of inadequate lymph node staging were considerable in our patients, resulting in overtreatment.
Pengaruh Budaya Organisasi dan Kedisiplinan Terhadap Kepuasan Kerja yang Berdampak pada Kinerja Pegawai Pada Suku Dinas Perhubungan Jakarta Selatan
Authors: Astria Kenny
Published: May 2024

Penelitian ini bertujuan untuk mengetahui pengaruh budaya organisasi dan kedisiplinan terhadap kepuasan kerja yang berdampak pada kinerja pegawai pada Suku Dinas Perhubungan Jakarta Selatan. Metode yang digunakan adalah explanatory research dengan sampel sebanyak 100 responden. Teknik analisis menggunakan analisis statistik dengan pengujian regresi, korelasi, determinasi dan uji hipotesis. Hasil penelitian ini Budaya organisasi berpengaruh signifikan terhadap kepuasan kerja sebesar 42,4%, uji hipotesis diperoleh signifikansi 0,000 < 0,05. Kedisiplinan berpengaruh signifikan terhadap kepuasan kerja sebesar 37,5%, uji  hipotesis diperoleh signifikansi 0,000 < 0,05. Budaya organisasi dan kedisiplinan secara simultan berpengaruh signifikan terhadap kepuasan kerja sebesar 51,5%, uji hipotesis diperoleh signifikansi 0,000 < 0,05.Kepuasan kerja berpengaruh signifikan terhadap kinerja pegawai sebesar 39,7%, uji  hipotesis diperoleh signifikansi 0,000 < 0,05.
Pràctiques d’estadística amb R : aplicacions en problemes d’enginyeria
Authors: Mujica Delgado Luis Eduardo , Ruiz Ordóñez Magda
Published: May 2024

Les dades, la informació que està al nostre voltant ha de ser processada i analitzada. Aquest llibre conté els conceptes d’estadística bàsica que, en la nostra opinió, són vitals en la formació de qualsevol professional. És una primera immersió en l’operació, tractament i comprensió de les dades. Es pot observar que cada concepte estarà implementat en el desenvolupament d’un exercici pràctic i acompanyat amb les seves corresponents línies de codi en R. Potser, si es veu des de fora, podria generar una mica d’incertesa. Però en submergir-se en el seu contingut, es podrà observar que s’ha desglossat i explicat cadascun dels passos per a facilitar la seva interpretació i enteniment. Quan s’arriba al final, es tindrà la capacitat d’assimilar que, en un problema real, les dades es poden interpretar com a variables aleatòries, aconseguint d’aquesta manera diferenciar, modelar i contrastar les diferents distribucions que aquests puguin implicar.
Teachers' Competence in Managing Learners' Performance Tasks
Authors: M. Talaboc Melna , A. Buquia William
Published: May 2024

Teachers' competence plays a crucial role in learners' performance tasks across various educational settings. In this context, this paper aimed to determine the level of teachers’ competence in learners’ performance tasks of the public elementary schools in an island district in a large-sized division in central Philippines during the school year 2022-2023. Data for this descriptive study was collected from 104 respondents using a self-made survey questionnaire that has passed the rigorous tests of validity and reliability. The ensuing analysis showed a high level of teachers’ competence in learners’ performance tasks during the school year 2022-2023. Further analysis showed a significant relationship between teachers’ competence in learners’ performance tasks. The same data showed a high level of teachers’ competence in learners’ performance tasks. This aims to unveil valuable insights and draw meaningful conclusions that contribute to the overall objectives of the research study, particularly in mentoring and designing lessons in their discipline that use the 21st pedagogy, assessment style, and technology. Regarding teachers' competence in learners' performance tasks, the areas of the learning process, integration to real-life situations, and diverse learners were rated with very high-level equivalents. However, the area of knowledge and skill was rated as high level.
El centro histórico de San Luis Potosí. Una lectura
Authors: Motilla Chávez José Antonio
Published: May 2024

El objetivo de este libro es ofrecer al lector una guía histórica con la información esencial de los principales lugares y construcciones del centro histórico de la capital de San Luis Potosí, México. En esta obra, el arte y la historia trabajan de la mano para explicar, comprender y disfrutar de la maravillosa arquitectura y de los elementos propios del patrimonio material e inmaterial. A partir de una rigurosa investigación histórica en fuentes bibliográficas y documentales, y de la libre interpretación del espacio y su vida cotidiana mediante bocetos realizados en diferentes técnicas, proponemos una lectura que permita resignificar el espacio vivido.
Tecnología, arte y diseño en la era digital
Authors: Mancilla González Eréndida , Guerrero Salinas Manuel , Cuevas Riaño María
Published: May 2024

Las disciplinas del diseño se encuentran ante un nuevo paradigma por la irrupción de lo digital junto a lo análogo; fenómeno que obliga a reflexionar sobre el futuro de las disciplinas del diseño, al tener que lidiar con imágenes numéricas. Las nuevas tecnologías digitales (NTD) han abierto canales de creación, representación y transmisión de ideas, sin embargo, el espacio digital establece que objetos y personas sean entendidas y tratadas como información para fines de consumo.
Metodología para la proyectación: Diseño e ingeniería
Authors: González Vega Normal Alejandra
Published: May 2024

El Seminario de Desarrollo de Nuevos Productos convocó a estudiantes, profesores, investigadores y profesionistas del diseño y la ingeniería. Que hayan participado en proyectos de diseño, arquitectura, urbanismo, restauración o ingeniería. Ya sea como proyectistas, desarrolladores o en investigación. Se les convocó a exponer, intercambiar y analizar diferentes procesos y métodos de trabajo en torno al proyecto de la investigación y del acto del diseño. Logrando un ejercicio de reflexión que nos permitió conocer y analizar distintos métodos y procesos llevados a cabo para la resolución de problemas específicos en la práctica profesional y/o en el ámbito de la investigación.
Positive Airway Pressure and Mask Factors Affecting Adherence in Patients with Obstructive Sleep Apnea
Authors: Sheth Soham , Sheth Rutvi , Audette Michel
Published: May 2024

Purpose: Sleep apnea is a major risk factor for cardiovascular disorders. CPAP (Continuous Positive Airway Pressure) therapy is the main treatment for sleep apnea. However, adherence with CPAP remains a concern. Although there are various factors attributed to failure of CPAP therapy, mask related factors are not well studied. Methods: The study recruited patients with obstructive sleep apnea using CPAP from neurology outpatient clinic at Progressive Neurology and Sleep Center. An IRB (Institutional Review Board) approved questionnaire was administered to evaluate factors affecting CPAP compliance. Results: The study recruited 24 patients. It showed that almost 50% of the patients did not like using CPAP, 70.8% patients felt that the mask bothered them in sleep. Almost 67% of the patients felt sleepy at least on some days and 71% of the patients took naps, though occasionally. 87.5% of the patients had experienced dry mouth with CPAP. 91.8% of patients wanted to consider custom fit CPAP masks. Conclusion: The study showed that mask related factors play a major role in non-compliance with CPAP therapy. Designing a custom fit CPAP mask might help reduce the mask related factors further increasing CPAP adherence.
The Effect of Drill Training Program Like Game Situation on Forehand and Backhand Shots in Pickleball Sport
Authors: Lestari Sekar Putri , Kahri Ma’ruful , Haffyandi Recky Ahmad
Published: May 2024

This research aims to see how the situational game-like drill training program influences pickleball shots. Pickleball is an increasingly popular sport with a need for evolving techniques and strategies. A structured and effective practice program is critical to improving pickleball players' skills. One interesting approach is the drill-like game situation training program, which aims to simulate game situations similar to real matches. This study aimed to explore the effects of such a training program on hitting in pickleball. This research provides an essential contribution to understanding the effectiveness of the drill-like game situation training program in improving hitting skills in pickleball. These findings imply that pickleball coaches and players may consider integrating such training programs into their training plans to achieve better match results.
Earning Moderates the Influence of CAR, NPL, and BOPO on Company Value in Conventional Banks Listed on the IDX for the 2020-2022 Period
Authors: Miranti Rika Sherly , Walia Ana Robi , Haris Abdul
Published: May 2024

The goal of research on traditional commercial banks listed on the Indonesia Stock Exchange (IDX) is to use earnings as a moderator to ascertain the impact of the capital adequacy ratio (CAR), non-performing loan (NPL), and BOPO on the value of the company. Variables This study uses a quantitative approach and sample data collection through purposive sampling. The samples obtained for this study are 69 samples that meet the standards of the Indonesia Stock Exchange (IDX) and financial statements for the 2020-2022 period. Classical hypothesis testing and moderate regression analysis (MRA) methods were used to analyze the results of this study. The results showed that the Capital Adequacy Ratio (CAR) did not have a significant effect on the value of the company, and non-performing loans (NPL) did not have a significant effect on the value of the company and operating costs. (BOPO) does not have a significant influence on the value of the company. Capital Adequacy Ratio (CAR) can be changed and affect company value, profit cannot moderate the impact of non-performing loans (NPL) on company performance Product value cannot reduce Operating Costs and Operating Income (BOPO) to company value.
The impact of enterprise risk management on the cost of debt in Vietnamese listed firms: Evidence from abnormal enterprise risk management index
Authors:   Foreign Trade University, Nguyễn Thị Hoa Hồng
Published: May 2024

The study examines the impact of enterprise risk management (ERM) on the cost of debt in Vietnamese listed firms during 2010-2020. The effectiveness of enterprise risk management is measured by abnormal enterprise risk management (ABERMI). By applying multivariable regression models, the empirical results show that firms with effective enterprise risk management through low ABERMI will reduce the cost of debt. In addition, the study also proves that firm size, profitability, and the fact that firms are audited by one of the four large auditing companies have negative effects on the cost of debt while firms having high financial leverage increase the cost of debt
Comparing the reliability of the intrinsic value estimates derived from three flows-based models and a multiples-based model
Authors:   Ministry of Finance, Lê Hồ Anh Thư , Nguyễn Thị Hoài Thu ,   Banking Academy of Vietnam
Published: May 2024

Different equity valuation models in theory provide identical estimates of equity intrinsic values if they are implemented with consistent assumptions. In practice, it is not unusual to obtain different value estimates from different models. Prior research on the comparison between multiples-based valuation model and flowsbased valuation models are quite limited. This research contributes to the literature by comparing the accuracy and reliability of three flows-based valuation models (discount dividend model, discounted free cash flow model, residual income valuation model) and multiples-based valuation model using one-year forward forecasted earning (PE1). For the analysis, all models are tested for bias, accuracy and explainability using t-tests, Wilcoxon tests and OLS regressions with a large sample of 40.547 observations from U.S public firms during the period from 2010 to 2020. Results show that PE1 value estimates are more accurate and reliable than that of flows-based models; and among flows-based models, residual income valuation model performs best. This research provides evidence for the performance and usage of such models to support sell-side equity analysts while making decisions of which model to use.
Investigating the impacts of ESG on corporate tax avoidance behaviors
Authors:   Foreign Trade University, Nguyễn Vân Hà
Published: May 2024

This article examines the impact of environmental, social and governance (ESG) activities on tax avoidance behavior of non-financial enterprises listed in four emerging markets including Brazil, Russia, China and India (BRIC countries) over the 2010-2020 period. Using a quantitative method for panel data including 2,372 observations, empirical results show that businesses that perform well on environmental (E) and social (S) activities are less likely to engage in tax avoidance. Meanwhile, the impact of corporate governance (G) is not statistically significant. The research results ensure robustness when controlling the endogeneity issue using the sysGMM regression technique. The empirical evidence on the negative relationship between the implementation of environmental and social responsibility and tax avoidance has important implications for policymakers in promulgating policies to promote environmentally and socially responsible initiatives in order to mitigate corporate tax avoidance.
The Environmental Impact of Leprosy Market (Kasuwan Kuturu) on Health in Mubi Metropolis, Adamawa State, Nigeria.
Authors:   Adamawa State College of Education Hong, Wushiya Joseph , Musa Zachariah ,   Adamawa State University, Mubi, Nigeria, Abu Anami Paul ,   Adamawa State College of Education Hong
Published: May 2024

This article explores the environmental impact of the Leprosy Market, known as Kasuwan Kuturu, on health in Mubi Metropolis, Adamawa State, Nigeria. The study utilizes a combination of primary and secondary data sources, employing structural questionnaires, field observations, oral interviews, and participant interactions. Two major types of environmental pollutants were considered to be the most predominant factors (air and noise pollution). Analytical methods involve descriptive statistical techniques. The findings revealed a complex interplay of positive and negative environmental effects stemming from the market's operations, including heightened air pollution, waste disposal challenges, land pollution, and a surge in diseases like diarrhea and cholera, as well as traffic congestion. In response to these issues, the article proposes recommendations for mitigating these impacts. Keywords: Environmental Impact, Leprosy market, health, Mubi Metropolis
Quantitative Phyto-evaluation and Antimicrobial studies of the n-butanol stem bark fraction of Detarium microcarpum
Authors:   Department of Chemistry, Adamawa state, Nigeria Modibbo Adama University Yola, Shagal M.H , Abubakar D. ,   Department of Chemistry, Adamawa state, Nigeria Modibbo Adama University Yola, Nkafamiya I.I ,   Department of Chemistry, Adamawa state, Nigeria Modibbo Adama University Yola, Fulata A. M. ,   Federal Polytechnic Monguno, Borno State, Nigeria
Published: May 2024

This paper examines the phytochemical constituents and antimicrobial efficacies of n-butanol stem bark fraction of Detarium microcarpum using an in vitro model. The results revealed that the N-butanol fraction of Detarium microcarpum stems tested positive for the presence of Alkaloids, Saponins, Tannins, Flavonoids, Anthraquinones, steroids, and Glycosides. Similarly, the in vitro antimicrobial study also revealed that the n-butanol fraction has effectively inhibited the growth of test organism’s pathogens (Protius, Bacillus subtilis, staphylococaccus aureus, Enterobacta, Eschericia coli, Shigelia dysenteriae, Salmonella typhi, Pseudomonas aeruginosa, Aspergillus nigger. Aspergillus flavus, Candida albicans, Rhezome). The minimum Inhibitory Concentration (MIC). Range from 1.0×104 to 4.0×104. Keywords: Phytochemical Analysis, Antimicrobial Activity, Detarium microcarpum, n-Butanol Fraction, Minimum Inhibitory Concentration (MIC)
Factors Affecting the Teaching and Learning of Agriculture in Secondary Schools in Bushenyi District Bitooma Sub-County
Authors:   Faculty of Education Kampala International University Uganda, Judith Kaboniire
Published: May 2024

The teaching and learning of agriculture in secondary schools have faced challenges over the years, leading to a decline in student interest and performance. Despite its relevance in everyday life, the subject struggles to captivate students and has witnessed diminishing participation in national examinations. This study delves into the factors affecting the teaching and learning of agriculture in Bitooma-Kyamuhunga Sub-County, Bushenyi District, focusing on the period from 2007 to 2010. Previous research highlights various challenges, including teacher qualifications, instructional materials, traditional biases, and government support. Teachers' interaction with students, availability of textbooks, and societal perceptions significantly impact the effectiveness of agriculture education. A cross-sectional survey combining qualitative and quantitative methods was conducted in five secondary schools. Data was collected from head teachers, agriculture teachers, and students from different classes through questionnaires, interviews, and observations. Findings revealed a lack of instructional materials, with only a fraction of students having access to essential resources like textbooks. Additionally, teacher qualifications varied, with only half possessing formal qualifications in agriculture. Traditional biases and parental attitudes further deterred student interest, contributing to the subject's poor performance. The study underscores the need for more qualified agriculture teachers, adequate instructional materials, and government support to improve the teaching and learning of agriculture. Recommendations include enhanced teacher training, provision of resources, and efforts to change societal perceptions towards agriculture. Addressing the identified challenges can revitalize agriculture education, fostering student interest and improving academic performance. Collaboration between stakeholders, including educators, policymakers, and communities, is crucial in overcoming these obstacles and promoting agricultural literacy among students. Keywords: Learning, Agriculture, Secondary Schools, Students
A critical assessment of administration as a rescue mechanism of an insolvent corporate debtor in Uganda
Authors:   School of Law Kampala International University, Uganda, Edmon Safari
Published: May 2024

Insolvency law enhances growth and alleviates financial challenges of businesses, but it can also be inefficient and delay commercial justice. This article critically evaluated Uganda's insolvent corporate debtor administration method and impacts. At the end, the article call for the bankruptcy protective order duration to be extended to at least a month in order to allow a debtor to establish payment arrangements. This period may be sufficient for the bankrupt to decide on the next steps to take to clear their debts, compared to the 14 days allowed under present insolvency law. Without increasing this term, the temporary protection order will fail since the bankrupt will still be panicked and may sell his/her business property at a loss. It is also recommended by the study for legal training to be organized for insolvency practitioners. This will ensure that only trained insolvency practitioners can practice. Finally, there is urgent need for enhanced insolvency law. Keywords: Insolvency, Administration, Corporate debtor, Creditor, Insolvency practitioners
Prevalence of Adverse Drug Reactions in HIV/AIDS Patients on Highly Active Anti-Retroviral Therapy in Bushenyi Medical Centre, Ishaka Adventist Hospital, and Kampala International University Teaching Hospital in Bushenyi District, Western Uganda
Authors:   Department of Public Health, Kampala International University, Uganda., Somaiya Nakajiri , Kibirige Arafhart ,   Department of Public Health, Kampala International University, Uganda., Eze Val Hyginus Udoka ,   Department of Publication and Extension, Kampala International University, Uganda
Published: May 2024

The World Health Organization (WHO) delineates an Adverse Drug Reaction (ADR) as an unintended and harmful response to a drug when it is used for disease prevention, diagnosis, treatment, or physiological function modification in humans. This definition specifically excludes therapeutic failures, overdose, drug abuse, noncompliance, and medication errors. The objective of this study is to determine the prevalence of ADRs among HIV/AIDS patients undergoing Highly Active Antiretroviral Therapy (HAART) at Bushenyi Medical Centre, Ishaka-Adventist Hospital, and KIU Teaching Hospital in the Bushenyi district, western Uganda. Patient interviews were conducted using structured questionnaires. A cohort of 333 patients participated in the study. The investigation revealed a prevalence of ADRs at 13.5% (95% CI: 10.2-17.6). Among the 333 patients interviewed, 44 reported experiencing ADRs, with a significant 97.8% of these cases occurring in female patients. Importantly, individuals with co-morbidities had a 55.6-fold higher likelihood of developing ADRs compared to those without any co-morbid conditions (95% CI: 2.4-1286.7). Furthermore, the study indicated an increased risk of ADR development among patients starting HAART within the first year of treatment. In summary, our findings highlight the notable prevalence of ADRs among females, emphasizing the need for gender-specific initiatives to raise awareness and prevent ADRs. Regular monitoring is particularly important for patients with co-morbidities due to the established association between co-medication and susceptibility to ADRs. Additionally, adherence to HAART therapy is essential, as the incidence of ADRs tends to decrease over time. Keywords: Adverse drug reaction (ADR), HIV/AIDS, Co-morbidities, Anti-Retroviral Therapy, Uganda
Determination of Heavy Metals in the Hair of Some Occupational Workers in Some Local Government of Adamawa State, Nigeria
Authors:   Department of Chemistry Modibbo Adama University Yola. Adamawa state Nigeria, Sunday Ishaku , O.N Maitera ,   Department of Chemistry Modibbo Adama University Yola. Adamawa state Nigeria, Jibril Ndahi A. ,   Department of Chemistry Modibbo Adama University Yola. Adamawa state Nigeria, Wazamtu Idrisa ,   Department of Science Laboratory Technology Ramat Polytechnical Maiduguri Borno State Nigeria
Published: May 2024

This study was conducted to determine the heavy metals concentration in hair samples of occupational workers (mechanics, electricians, and welders) in the Mubi, Gombi, and Numan local government areas of Adamawa State. The hair sample was washed with non-ionic detergent and acetone to remove contamination and digested with 20cm3 of 3:1 mixture of concentrated nitric acid and perchloric acid. The sample was later analysed using Atomic Absorption Spectrometry for the determination of heavy metals lead (Pb), cadmium (Cd), nickel (Ni), cobalt (Co), Zinc (Zn), chromium (Cr), manganese (Mn) and copper (Cu). The results of this study show that heavy metals in hair samples from different subjects accumulate differently based on exposure. The concentrations of heavy metals in welder workers' hair are the highest values among other occupations (mechanics and electricians), except in Mubi where mechanics workers have the highest concentration. The levels of all the metals increase with respect to age except age 26 – 40 in Mubi which is even higher than the aged group 41 – 55. This research shows that there is a statistically significant relationship between the type of work or workplace and the heavy metal concentration detected in hair samples. There is an instantaneous need for public awareness about the hazards of this occupation to enable occupational workers to take necessary precautionary measures. Keywords: Heavy metals, Human hair, Occupational workers (welders, mechanics, and electricians)
Comparative Evaluation of the Fluoride Releasing Ability and Microbial Attachment of Glass-Hybrid Restorative Material
Authors: Choi MinKi , Park Howon , Lee Siyoung , Kim Haeni , Lee Juhyun
Published: May 2024

This study aimed to compare the fluoride-releasing ability and degree of microbial attachment of a newly developed glass-hybrid restorative material (GH) with those of a high-viscosity glass ionomer (HvGIC), resin-modified glass ionomer (RMGI), and composite resin (CR). In addition, the correlation between fluoride-releasing ability and microbial attachment between materials was evaluated. Specimens were prepared in a disc shape and divided into 4 groups according to the materials (GH, HvGIC, RMGI, and CR). The fluoride release experiments were performed in each group (n = 15). The amount of fluoride released was measured on days 1, 3, 7, 14, 28, and 42 after storage. For the microbial attachment experiment, 12 specimens were produced per group using Mutans Streptococci (S.mutans ), a cariogenic microorganism. S. mutans was cultured on the specimens for 24 hours, and the number of bacteria was measured. GH had the highest cumulative fluoride release and showed a significant difference when compared with RMGI (p = 0.001) and CR (p < 0.0001). Microbial attachment was the lowest in GH; however, no significant difference was observed between the materials (p = 0.169). There was no significant correlation between fluoride release from materials and microbial attachment (p > 0.05). From this perspective, remineralization of low-mineralized areas could be expected due to the high fluoride release of GH, and the effect of delaying the progression of dental caries could be predicted from the low cariogenic microbial attachment. Therefore, GH might be a useful restorative material for treating immature permanent teeth with hypomineralized enamel. However, further studies are needed about the degree of remineralization of hypomineralized areas after restoration and the capacity to recharge fluoride.
Employees' work-life balance in the contemporary business environment in Serbia
Authors: Berber Nemanja , Slavić Agneš , Gašić Dimitrije
Published: May 2024

Work plays a very important role in the lives of people, companies, and society, in general. Individuals value work for the income it provides, but also because it contributes to self-esteem and personal happiness that people feel when they put their competencies to work. Work is important from the point of individual well-being, but it also forms the cornerstone of economic and social development. However, as a very common phenomenon, not only in our country, but in other countries, too, is that work can prevail in the workers family and private life. Many employees may feel unable to make an adequate balance between their work and private life. Because of this, frustration often arises among them as they are aware that they do not spend enough time with their family, or are neglecting their personal needs. In the same time, families are facing with reduced functionality and alienation of family members. The main aim of this paper is to investigate the level of work-life balance in Serbia, and its relation to job stress. The methodology of the research consists of theoretical and empirical analysis. Theoretical research is based on a literature review, while the empirical research is based on the answers of 291 employees from different organizations in Serbia. The data were collected in October 2023. The analysis is performed by implementing PLS-SEM to investigate the relations between work-life balance and job stress, and by descriptive statistics to investigate the level of work-life balance in Serbia.
Career preferences for university students from Russia and Bulgaria
Authors: Murzina Julia , Brand Albert , Pavlov Daniel , Shvab Svetlana
Published: May 2024

The development of family companies can become a driver of the national economy and form mechanisms that overcome foreign economic barriers and political challenges. The purpose of the presented work was to study the dynamics of career preferences of students from Russia and Bulgaria (the comparison was made in 2021 and 2023). This empirical study was conducted within the framework of the InterGen project. The results of the statistical analysis showed that the most desirable thing for students in the two countries is to build their own business. The second most popular is working in a large company. The least attractive is the prospect of creating or continuing a family business. Comparison by year showed that for the University of Ruse the statistical differences are not significant. For University of Tyumen the career orientation "opening a family business" shows a significant decrease. This empirical result may indicate the ineffectiveness of government programs to popularize family businesses in Russia.
Selection of cutting insert for longitudinal turning of unalloyed steel using robust decision making
Authors: Madić Miloš , Trifunović Milan , Petrović Goran
Published: May 2024

Cutting tool is a very important element of machining production system. It is primarily responsible for material removal in the form of chips, but also significantly affects multiple machinability characteristics, surface finish, attainable dimensional accuracy, productivity and costs. As for a given machining operation there is a number of alternative cutting tools and inserts from many manufacturers, each characterized by a unique set of characteristics, the selection of a particular cutting tool can be very complex task, yet solvable within the framework of multi-criteria decision making (MCDM) methodology. This study is focused on the development of an MCDM model for selection of the most suitable cutting insert for medium machining of unalloyed structural steel. The model was developed by available information, catalogues of cutting tool manufacturers and machining estimations, and consisted of fourteen alternative cutting inserts from eight well-known cutting tool manufacturers and seven criteria. Initially, the assessment and ranking of alternative cutting inserts was derived by the six multi-criteria decision making (MCDM) methods, however, due to ranking inconsistency, the application of the robust decision making rule was adopted for solving the cutting insert MCDM problem.
Impact of Strategic Human Resource Management on mediating the relationship between entrepreneurial ventures and sustainable growth
Authors: Aliyu Mohammed , Sundararajan Shanmugam , Senthil Kumar , Kumar Pal
Published: May 2024

Determining the mediation Strategic Human Resource Management (SHRM) performs between EVs and sustainable growth in the business environment of Nigeria is the main objective of the research. The population of Nigerian entrepreneurs and business owners were choose to be the study's population and 316 people were taken as sample size using the Krejcie and Morgan table formula. To collect the information on SHRM practices, entrepreneurial activities and sustainable profit metrics, the structured questionnaires were used as the data collection instrument. It is found in the results that the HR actions, which are intermediary in nature, are governance to the relationship between EVs and influential growth and also HR specific tactics such as performance management, training and recruitment act in an accelerating way to promote sustainability and growth. Additionally, there is a close association between HR indicators and performance of business, which underlines the immense value of the databased HR decision-making. Enhancing sustainable growth and innovation in entrepreneurship undertakings calls for the investment in leadership development, the collaboration and knowledge-sharing networks, the HR analytics for monitoring and evaluation, and the implementation of customized SHRM practices. This research thus contributes to an explicated understanding of the SHRM's role, in particular, its contribution to sustainable development in the entrepreneurial business environment that is in a constant state of change.
Parteiverbotsverfahren zum Schutz vor Rassismus
Authors: Kaya Berkan
Published: May 2024

Die Urteile des Oberverwaltungsgerichts Münster vom 13. Mai sind ein Meilenstein in der aktuellen Debatte über den Umgang mit der AfD und wurden häufig als Vorbedingung für ein Parteiverbotsverfahren gesehen. Über die antirassistische Seite der Debatte liest man allerdings wenig. Zum Schutz von Personen, die von Rassismus betroffen sind, scheint ein Verbotsverfahren bei entsprechender Beweislage damit mehr als geboten.
Colloidal self-assembly in biosensing strategies for biomarkers diagnosis
Authors: Pan Xiangyu , Zhang Zeying , Su Meng
Published: May 2024

Rapid and high-throughput detection of biomarkers plays an important role in disease diagnosis, prognosis, and monitoring treatment. Existing diagnostic tools that rely on genetic testing and antibody recognition can provide the required sensitivity and specificity. However, these methods need multiple labeling steps for the signal amplification, which are tedious and time-consuming. To address these issues, self-assembled colloidal superstructures, especially for the nanophotonic structures, exhibit many optical sensing properties in response to external stimuli, which lays the foundation for developing the next-generation biosensors. Herein, we discuss the potential of self-assembled nanophotonic-based biosensors for achieving low-cost, high-sensitive, multiplexed detection of various biomarkers, including nucleic acids, proteins, and exosomes. We conclude the current challenges in optical colloidal biosensors and offer insights into their further advances towards the smart healthcare.
Diseño de buenas prácticas ambientales en la Educación Superior.
Authors: Veliz Zambrano Narcisa Alexandra , Troya Zamora Gabriel Antonio
Published: May 2024

El diseño de buenas prácticas ambientales en la educación superior, permite formular y fomentar los hábitos y acciones en la comunidad educativa del Instituto Superior Tecnológico Luis Tello, que en función de la ejecución de sus actividades relaciona los impactos ambientales genera diariamente.  El objetivo del presente estudio fue el de constatar cuales son los aspectos e impactos ambientales, las prácticas que tiene el instituto en sostenibilidad y educación ambiental y como también que programas se han desarrollado en los últimos 2 años. Se aplicó una metodología de revisión sistemática, de tipo cualitativa – descriptiva, distribuida en 3 fases, la primera fase se realizó un análisis de situación y relevamiento de los aspectos e impactos ambientales en manejo y gestión adecuada de residuos, gestión adecuada del recurso agua, uso eficiente de energía y cuidado de recursos naturales (huertos ecológicos). La segunda fase fue la elaboración del manual de buenas prácticas ambiental y la tercera fase fue la planificación de acciones que se proponen llevar a cabo en la implementación del manual y la elaboración de los resultados, discusión y conclusión.
Uso de socrative como herramienta tecnológica innovadora en la asignatura de computación.
Authors: Quiñonez Godoy Nestor Alberto , Quiñonez Camacho Laura Yanine , Cano Vera Maira Alejandra , Reyes Trejo Marco Antonio , Manchay Orbea César Alberto
Published: May 2024

Este estudio investigó el uso de la herramienta de gamificación Socrative como una estrategia innovadora para mejorar la motivación en la enseñanza de informática a nivel universitario. Investigaciones anteriores han demostrado los beneficios de incorporar tecnologías interactivas y elementos divertidos en el plan de estudios para promover la participación activa, el aprendizaje colaborativo y el desarrollo de habilidades digitales. Se utilizó un diseño cuasiexperimental y se implementó Socrative en ocho sesiones con un grupo de 34 estudiantes. Se utilizó la escala CMEA para medir la motivación antes y después de la intervención. Los resultados estadísticos mostraron un aumento significativo en los niveles de motivación después de usar Socrative, como lo demuestra la prueba de hipótesis realizada sobre los seis factores de la escala. Los comentarios de los estudiantes también revelaron que esta herramienta innovadora mejoró su interés en el tema, su confianza y su experiencia de aprendizaje. En conclusión, la incorporación de Socrative a la estrategia de producción ha logrado mejorar la motivación de los estudiantes, el rendimiento académico y el desarrollo de habilidades informáticas de una manera sencilla y divertida, cambiando los métodos de evaluación tradicionales y promoviendo un entorno de aprendizaje dinámico.
Kepribadian Tokoh dalam Novel Perempuan yang Menangis Kepada Bulan Hitam Karya Dian Purnomo
Authors: Lillah Farah Hayaatan , Sutejo Sutejo , Munifah Siti
Published: May 2024

Penelitian ini bertujuan untuk mendeskripsikan kepribadian tokoh yang dilihat dari struktur kepribadian manusia, menggunakan pendekatan psikologi sastra. Penelitian ini merupakan penelitian deskriptif kualitatif. Teknik pengumpulan data dalam penelitian ini menggunakan teknik baca dan catat. Objek yang digunakan dalam penelitian ini merupakan sebuah novel Perempuan yang Menangis kepada Bulan Hitam karya Dian Purnomo yang diterbitkan oleh Gramedia Pustaka Utama pada tahun 2020. Novel ini bercerita tentang kisah perjuangan tokoh Magi Diela untuk lepas dari adat yang mengikatnya untuk menjadi istri seorang laki-laki tua bernama Leba Ali. Hasil dari penelitian ini adalah kepribadian tokoh Magi Diela dan Leba Ali yang dipengaruhi oleh struktur kepribadiannya yaitu id, ego, dan superego yang dianlalisis menggunakan teori psikologi kepribadian yang digagas oleh Sigmund Freud.
ŞAH İSMAİL DÖNEMİ PORTEKİZ-SAFEVİ İLİŞKİLERİ: ANTÓNIO TENREIRO’NUN PORTEKİZ ELÇİSİYLE BİRLİKTE ŞAH İSMAİL’İN SARAYINA SEYAHATİ (1523-1524)
Authors: Naki Emrah
Published: May 2024

Portekiz-Safevî temasları, tarihte ilk kez Afonso de Albuquerque komutasındaki Portekiz
donanmasının Basra Körfezi’ne girip Hürmüz Krallığı’nı egemenliği altına almaya çalıştığı
1507 yılında gerçekleşti. Konumu gereği ticaret yollarıyla olan bağlantısı sayesinde limana
uğrayan malların gümrük vergilerinden büyük gelir elde eden Hürmüz, Hindistan ve İran ticaret
yolları arasında güvenli üsler inşa etmek isteyen Portekizlilerin dikkatini çekti. Şah İsmail’e
vasallık vergisi ödeyen Hürmüz kralını boyunduruğu altına alıp Hürmüz Adası’nda bir kale
inşaatına girişen Portekizliler, bu sayede Basra Körfezi’nin askeri ve ticari kontrolünü ele
geçirmeyi başardılar. Şah İsmail’in, Hürmüz’den alınan gelirden vazgeçmek gibi bir niyeti
yoktu. Her fırsatta Hürmüz üzerindeki haklarını hatırlatmaktan imtina etmediği gibi askeri
anlamda Portekizlilerin adadaki faaliyetlerini tehdit etmekteydi. Diplomatik kanalları açık
tutan Portekiz Krallığı, Şah’ın tehditlerini baskılamaya çalışmaktaydı. Çaldıran mağlubiyeti
sebebiyle yaralarını sarmakta zorlanan Şah İsmail’in Portekizlilerle iyi ilişkiler kurmaktan
başka tercih yolu bulunmamaktaydı. Hürmüz’den gelen vasallık vergisini alamasa da anlaşma
yolunu seçen Şah İsmail, Basra Körfezi’nde başta İranlı tüccarlar olmak üzere halkının
Arabistan topraklarına deniz yoluyla taşınmasını Portekizlilere kabul ettirdi. Kendisine isyan
eden Mekran kralına karşı askeri yardım ile giriş Hürmüz olmak şartıyla ana ticaret limanı
Goa’da İranlı tüccarların faaliyetine izin verecek sözü Portekiz’den aldı. 1522’de Hürmüz’deki
Portekizli yetkililerin gümrüklerin kontrolünü devralması üzerine, Hürmüz kralı Portekizlilere
karşı ayaklandı. Vasallık vergisini Şah İsmail’e teklif edip Portekizlilere karşı ondan yardım
istedi. Fakat Hürmüz kralının aniden ölümü ve yerine geçen yeni kralın Portekizlilerle anlaşması
üzerine ulaşan yardım işe yaramayınca Şah İsmail, Hürmüz’e giden kafileleri engelledi. Gelirini
kaybeden Hürmüz kralı, Portekizlilere vasallık vergisini ödeyemedi. Neticede Hürmüz’ü Safevi
baskısından kurtarmak amacıyla Portekiz’in Hindistan valisi D. Duarte de Menezes, müzakere
yapmak üzere elçi olarak Baltasar Pessoa’yı Şah İsmail’in sarayına gönderdi. Bu bağlamda
Portekiz elçisine İran yolculuğunda eşlik eden António Tenreiro’nun gözlemlerini kaleme aldığı
“Itinerario..” adlı seyahatnamesinin İran ile ilgili kısmının Portekizceden tercümesi, Portekiz-
Safevî İlişkileri ve İran’ı bir Portekizli seyyahın gözünden görmemiz açısından önemi haizdir
The Processing of Household Waste by Residents of Griya Serpong Housing Complex, Serpong Sub-District, South Tangerang, Indonesia, in Compliance With Law Number 18 of 2008 and Law Number 32 of 2018
Authors: Suryani Reni , Sa’adah Nur , Lubis Ilhamsyah
Published: May 2024

The Waste Management Law Number 18 of 2008 mandates waste management at various levels, including producers, communities, industrial areas, traditional markets, and malls. Local government administrations in regencies and cities need to create or revise regional regulations (Perda) and design a communal-based waste management masterplan. Until now, waste management has largely been centralized, with an open dumping system at the final disposal site, which ended in 2013. There are three forms of urban waste management: centralization, decentralization, and centralization-decentralization. An ideal waste management pattern is neither purely centralized nor decentralized, but rather a combination of both. Organic Waste Management Facilities (OWMF) are established at the source of dominant waste generation (initial stage), with a recycling system similar to City Waste Management Facilities (CWMF) to support and assist in marketing the products of the OWMF established by Joint Business Groups (KUB) formed by the community, known as the "self-sustaining concept." Addressing the waste problem requires an examination of the current waste management practices to identify areas where improvements and enhancements can be made, so that only waste that truly cannot be recycled ends up in the final disposal site, such as hazardous waste (B3) that is incinerated directly. This research aims to provide a solution to the waste disposal issue, which is largely centralized in Indonesia.