bluuebunny/crossref_metadata_2025 huggingface dataset:
A small case series of primary synovial sarcoma of lung
Authors: Nitesh Anand , N. Manjunath , V. K. Shashidhar , K. Shailja
Published: October 2024

Primary synovial sarcoma of lung (PSSL) is extremely rare accounting for <0.5% of all lung tumors. Less than hundred cases of primary synovial sarcoma of the lung (PSS) have been reported. Thus, very limited medical literature is available regarding the clinical presentation and treatment outcomes of PSSL. Here we highlight the clinico-pathological features, immunohistochemistry, and treatment outcomes of a series of three PSSL cases. The mean age was 70 years and male to female ratio was 2: 1. Chest pain was the most common presenting complaint. Tumor size was more than 5 cm in all the cases. The characteristic biopsy finding was round and short spindled cells. IHC was strong positive for TLE 1 with final diagnosis being biphasic synovial sarcoma for all the three cases. Surgery was offered to all cases but only one was deemed fit for surgery. One received ifosfamide/epirubicin based chemotherapy while the third patient expired after one month of pazopanib. In few recent series, PSSL is being reported as the most common subtype of primary lung sarcoma comprising 14.7% to 18% of all primary lung sarcomas, due to wider utilization of immunohistochemical and cytogenetic analysis. The diagnosis requires clinico-pathologic and immunohistochemical investigations to exclude other primary and metastatic lung sarcoma. Thus, it merits to be in one of the differentials of primary lung masses not categorised as lung carcinomas.
Spiral oblique retinacular ligament reconstruction in correction of swan neck deformity: a case report
Authors: Daniati Sonia , Karna Made Bramantya , Asmara A. A. Gde Yuda
Published: October 2024

Hyperextension of the proximal interphalangeal (PIP) joint and flexion of the distal interphalangeal (DIP) joint constitute swan neck deformity (SND) of the finger. Surgical management is advised if there is extensor lag or functional impairment. We present a case of SND correction using spiral oblique retinacular ligament (SORL) reconstruction. A 34-year old male with SND with a previous history of tendon repair procedure after a cut to the index finger. The index finger got hit by an electric cord six months later and had left his finger untreated, resulting in stiffness and inability to extend the DIP joint. A SORL reconstruction was performed, using flexor carpi radialis tendon. On follow-up examination the patient showed satisfactory outcome with the DIP joint being able to be extended. SORL reconstruction has tenodesis effect, in which it extends the DIP joint as the PIP joint is extended without alteration of extensor mechanism or restriction of joint flexion. SORL reconstruction using tendon graft can be treatment of choice for treating SND.
A rare case of non-typhi salmonella meningitis in an immunocompetent adult: a case study
Authors: Sunnan Moinuddin , Batukbhai Bhalala Priyank , Ribadiya Fenilkumar Nitinbhai , Sadadiwala Mehul Hitesh
Published: October 2024

Salmonella, a gram-negative motile bacillus, is commonly associated with typhoid fever, septicemia, and diarrhea. Non-typhi Salmonella (NTS) can cause bacteremia, meningitis, focal septic infections, pneumonia, and osteomyelitis, although NTS meningitis is rarely reported in immunocompetent adults and is more common in immunocompromised patients, infants, and children. NTS infections are typically transmitted through contaminated food or water, and clinical presentations often lack specific symptoms, making diagnosis challenging. Due to the higher mortality rates, aggressive management with proper antibiotic susceptibility testing is advised. The risk of antibiotic resistance, recurrence, and the invasive nature of the infection make early diagnosis and treatment crucial. The treatment approach should be guided by performing proper antibiotic sensitivity testing. The higher risk of complications, including hydrocephalus, seizures, and empyema, highlights the importance of close follow-up. We describe a case of NTS meningitis that possibly occurred after the consumption of guinea pig meat, where early presentation and appropriate management led to a favorable outcome without progression to further complications.
Cost effectiveness and functional outcomes of smartphone cardiac rehabilitation assisted self-management versus centre based cardiac rehabilitation among patients with coronary heart disease in Southern India: a multicentre randomized clinical trial protocol
Authors: Mariarathinam Premkumar , Kiran Amit , Sannasi Rajasekar , Kumar Ajay
Published: October 2024

Background: To attain the world specific indicators of quality on programs which brings rehabilitation for cardiac diseases and surgeries in India are to be brought to meet the international standards. Dearth of published research on cost effectiveness of smart phone application oriented CR assisted self-management (SCRAM) over centre based (CBCR) in Indian Population drives this study to be done. This study aims to analyze cost effectiveness of SCRAM versus CBCR in coronary artery disease (CAD) patients.
Methods: In this multicentre randomized clinical trial, 100 subjects with uncomplicated CAD will be recruited through purposive sampling and divided into group A and B through block randomization. Group A will be treated with CBCR whereas group B with SCRAM. Outcome measures of 6 minutes’ walk test distance, talk test values and SF 36 scores, high density lipoprotein level and 3 months’ average blood glucose level were documented pre and post interventions and 3, 6, 12 months follow up for data analysis. This study will follow human study ethical consideration based on Declaration of Helsinki.
Conclusions: Cost effectiveness of experimental group where SCRAM given as intervention may be better post intervention than control group where CBCR given. By this way this RCT protocol may bring the execution cost down with coronary heart disease patients which play a major role in participation of these patients in CR programs.
Trial registration: The trial was registered with CTRI – Clinical Trial Registry of India (ICMR) - CTRI/2022/11/047143 (registered on: 09 November 2022) - trial registered prospectively.
Accessibility factors associated with adherence to healthy timing and spacing of pregnancy among women of reproductive age in Kilifi County, Kenya
Authors: Supaki Esther K. , Owaka Isaac O. , Mutisya Redempta K. , Okari Geoffrey M. , Matoke Vincent O.
Published: October 2024

Background: Globally, about 25% of births occur with shorter intervals annually with over 12 million underage pregnancies mostly from Sub-Saharan Africa. Kenya records about 20% teenage pregnancies while Kilifi County reported 28.9%. In Kilifi County, 19.6% of births do not adhere to the 24-month birth-interval. The study focused on establishing accessibility factors associated with adherence to healthy timing and spacing of pregnancy (HTSP) among reproductive age women in Kilifi County, Kenya.
Methods: A descriptive cross-sectional design was adopted with a sample of 293 respondents. All required approvals and consent were obtained. Quantitative data was collected using questionnaires. Descriptive data was analyzed using SPSS version 22.0 and inferential statistics computed through Chi-square tests.
Results: About 60.1% respondents adhered to heathy timing and spacing of pregnancy, 69.4% teenage pregnancies occurred and 67.1% of women adhered to the 24-month inter-birth interval. Availability of family planning (FP) services (p=0.008), experience with providers (p=0.005), cost of accessing FP (p=0.001) and source of information (p=0.002) were associated with HTSP.
Conclusions: About 4 out of 10 women of reproductive age in Kilifi County do not adhere to the recommended HTSP. Accessibility factors such as cost and availability of family planning services, source of information and experience with healthcare providers significantly influenced adherence to HTSP. The Ministry of Health and relevant stakeholders should scale up awareness activities, provide mobile clinics and concentrate on regular continuous medical education among healthcare providers to enhance their role in provision of reproductive health services.
Defaulting rate and associated factors among patients attending methadone maintenance clinics in Nairobi City County, Kenya
Authors: Owuor Sharon Akoth , Mwanzo Isaac J. M. , Orago Alloys S. S.
Published: October 2024

Background: Defaulting from MMT clinics is a major public health problem affecting people globally resulting in high transmission of HIV, hepatitis B and C, increased crime rate, and reduced productivity of an individual. However, defaulting rate in the MMT clinics in Nairobi City County in Kenya remains understudied. This study was aimed at determining the defaulting rate and its associated factors from MMT clinics in Nairobi City County, Kenya.
Methods: A cross-sectional analytical study design was employed. Simple random sampling, purposive sampling and stratified sampling were utilized in this study. A sample size of 388 patients was randomly selected. A semi-structured questionnaire was used for data collection. SPSS V.24 was used for data analysis.
Results: A response rate of 95% (369) was achieved. Most were youths aged 18-35yrs (60.7%, n=224), male (76.4%, n=282), married (39%, n=144), Christians (51.8%, n=191). The defaulting rate was 53% with marital status, religion, education level, and income source being significantly associated with defaulting (p<0.05).
Conclusions: The defaulting rate from MMT was relatively high in Nairobi City County. Defaulting was linked to education, cocaine use before MMT and concurrent drug use during treatment. A number of interventional strategies were proposed by this study to improve MMT programming.
Determinants of nutrition status among adolescents in selected secondary schools in rural Kanungu district Uganda
Authors: Angella Natukunda , Kariuki John , Nyamai Joseph Juma
Published: October 2024

Background: Adolescence, the time between childhood and adulthood, often considered relatively healthy stage of life remain highly vulnerable to malnutrition. One crucial first step in reducing teenage malnutrition may be to attend to their dietary needs. This study examined the determinants of nutrition status among secondary school adolescents in the Kanungu district, Uganda.
Methods: A school-based cross-sectional analytical study was employed in this study where both qualitative and quantitative methods of data collection were used for triangulation purposes.   A multi-stage random sampling method was applied to obtain the study respondents. The Cochran formula was utilized to obtain 340 study respondents.
Results: More than a quarter (37.1%) of the study respondents had malnutrition. Households that were father-headed (OR=1.8,95%CI=1.03-3.20), having met the recommended number of meal frequency (OR=2, 95%CI=1.13-3.44), being aware of healthy dietary habits (OR=2.2, 95%CI=0.29-0.71), having a small household size of 1-4 members (OR=4.3, 95%CI=2.38-7.83) and being employed (OR=2.1, 95%CI=1.17-3.93)  increased the odds of having a normal nutrition status while having a primary level of education (OR=3.6, 95%CI=0.11-0.68), having an inadequate dietary score (OR=2.1,95%CI=0.28-0.76) reduced the odds of having a normal nutrition status.
Conclusions: From this study, malnutrition was a public health concern. Households that were father-headed, being aware of healthy dietary habits, having a small household size of 1-4 members, and being employed increased the odds of having a normal nutrition status while having a primary level of education, having an inadequate dietary score reduced the odds of having a normal nutrition status.
Awareness and attitude towards human papillomavirus vaccination for cervical cancer prevention among college students in South Kerala
Authors: Backer Athena , V. S. Aparna , S. Aiswarya , Subhana Afla , Ahammed Daniya
Published: October 2024

Background: Carcinoma cervix is the second most common cancer among women, and the most common cause of cancer deaths in developed countries, but the awareness regarding it’s prevention by HPV vaccine is limited. This study targets to identify the awareness of cervical cancer and HPV vaccine among the college students.
Methods: An observational cross-sectional study was conducted among 963 college students of Kollam district of South Kerala, using a semi-structured questionnaire.
Results: Among the study subjects, only 48.6% had previously heard about HPV vaccine, 85.6% knew HPV causes cervical cancer, 80.2% recommends HPV vaccine to their siblings and peers. Medical students had better awareness, practice of HPV vaccination was less among medical and non-medical students; 11.6% medical students and 4.9% non- medical students had taken HPV vaccination.
Conclusions: Even though awareness regarding cervical cancer is present, to increase the practice of HPV vaccination, proper health education regarding HPV vaccination is of prime importance among college students.
A cross-sectional study on the key risk factors affecting farmers’ mental health
Authors: Madhav Dhruv Divesh , Bhat Waseem Hussain , Yaseen Mohammed , Krishnan Athira , Ramaiah Balakeshwa
Published: October 2024

Background: Amidst fluctuating commodity prices and disrupted processing methods, farmers face escalating costs, including healthcare and property taxes. Disturbingly, the suicide rate among farmers is 3.5 times higher than that of the general population. This study addressed the critical gap in understanding the key risk factors influencing farmers’ mental health. The study aimed to identify the risk factors affecting farmers’ mental health, explore the root causes of their depression and anxiety, and provide essential management education tailored for them.
Methods: A cross-sectional study was conducted with 153 farmers, collecting demographic details and conducting interviews to assess their financial status, health, and years of farming experience. Education on managing stress and anxiety was provided as part of the intervention.
Results: From January to October 2023, 153 farmers (120 males, 30 females) were interviewed. Of these, 95 reported experiencing depression, with varying degrees of severity: 30.9% mild, 22.1% moderate, 10.1% moderate to severe, and 2% severe. The age group most affected was 36–50 years. Key risk factors identified were financial stress, smoking, and alcohol consumption.
Conclusions: The study underscored significant public health concerns, revealing that factors such as age, working hours, and financial stress critically impact farmers’ mental health. Poor self-care, neglect of medical advice, and high rates of comorbidities among farmers highlight the need for targeted health interventions. Educating farmers on stress management and regular medical care is essential for improving their overall well-being, sustaining the agricultural workforce, and ensuring food security.
A cross-sectional study of knowledge and stated practices regarding HIV among truck drivers in Basirhat health district, West Bengal
Authors: Halder Tanudipta , Pal Jayita , Debnath Priya , Ghosh Manoj
Published: October 2024

Background: HIV is an important public health problem throughout the world as well as in India and truck drivers are a vulnerable population. A cross-sectional study was designed aiming to assess the knowledge and stated practices of truck drivers regarding HIV transmission, and prevention of its associated factors in Basirhat Health District, West Bengal.
Methods: This study employed a rigorous cross-sectional design to assess the knowledge and practices of 111 truck drivers in Basirhat Health District, West Bengal, regarding HIV. Participants were selected using simple random sampling from parking zones and Dhaba. Data were collected through face-to-face interviews using a structured questionnaire.
Results: The study uncovered intriguing insights into the knowledge and practices of truck drivers regarding HIV/AIDS. While the majority of participants had heard about HIV/AIDS, around half of the participants demonstrated good knowledge of HIV/AIDS. Surprisingly, misconceptions prevailed, including the belief that mosquitoes can transmit HIV. Participants displayed limited knowledge of AIDS symptoms and preventive measures, with uncertainty surrounding free HIV testing locations and free treatment availability. Alarmingly, a staggering 88.29% of truck drivers had never sought HIV testing, citing various reasons.
Conclusions: The study underscores the necessity of targeted interventions to address knowledge gaps and promote safe sexual practices among truck drivers in the Basirhat Health District. Health workers and media campaigns can play a pivotal role in increasing awareness and prevention of HIV/AIDS among this population.
Knowledge, attitude, and perception/practice towards artificial intelligence among dental students and dental professionals - a systematic review
Authors: A. Rokesh , Budida Hema S. , S. Aparna , Kumar P. D. Madan
Published: October 2024

Artificial intelligence (AI) is a broad term encompassing advanced technologies that aim to mimic human intelligence in computer hardware and software, achieving human-level performance. By studying the attitudes and practices of dental professionals and students, we can better integrate AI into the dental field. Hence, the aim is to examine the knowledge, attitudes, and perceptions/practices towards AI among dental students and dental professionals. This study protocol was based on preferred reporting items for overviews of reviews (PRIOR) guidelines. A broad electronic search was carried out in the following databases, such as PubMed, Scopus, Google Scholar, Cochrane database of systematic reviews, and Trip database to find related studies and a total of 28 articles were selected for the systematic review. In this review, the average knowledge percentage among dental students was around 56.9, while dental professionals demonstrated a higher average percentage of 66.42. 82% of postgraduate students showed greater openness to integrating AI at an advanced level of dental education. The review suggests a way for dental students and dental professionals to improve their artificial intelligence understanding and skills.
Surgical management and outcomes of chronic mesenteric ischemia
Authors: Almottowa Hisham A. , Almaqseed Mona A. , Alshehri Mohammed A. , Aldaihani Manal H. , Albalawi Shahad F. , Alshagaa Sara A. , Alqahtani Saad A. , Fares Meshal B. , Alshamlan Bader F. , Owf Abdulrahman M. , Kotbi Aws K.
Published: October 2024

Chronic mesenteric ischemia (CMI) is a vascular condition resulting from atherosclerotic blockage of the mesenteric arteries, which reduces blood flow to the intestines. Though rare, CMI is critical to diagnose due to the risk of progression to acute mesenteric ischemia, which can be life-threatening. This review discusses the pathophysiology, clinical presentation, and diagnostic challenges of CMI, emphasizing the need for timely revascularization to improve patient outcomes. Both endovascular and open-surgical techniques are examined, with a focus on patient selection and procedural outcomes. Endovascular interventions, preferred for their lower morbidity, have shown promising results despite a higher risk of restenosis. Comprehensive management, including aggressive medical therapy and lifestyle modifications, remains essential to address the underlying atherosclerosis. Given the complexity of CMI, a multidisciplinary approach is recommended to ensure accurate diagnosis and optimal treatment. This review emphasizes the significance of early diagnosis and customized treatments to improve the quality of life and survival rates in patients with CMI.
Comparative imaging modalities for diagnosing rotator cuff injuries
Authors: Aborukbah Abdullah Fuad , Ashoor Mohammed Muwaffaq , Elbashir Hisham Abdalla , Namri Saif Tawfig , Hamdi Ebtisam Ali , Khayat Ziad Mohamed , Sharahili Rami Moraya , Alharbi Nawwarah Abdulrahman , Fallatah Ahmed Sulaiman , Balqurun Hisham Mohammed
Published: October 2024

Rotator cuff injuries are a significant cause of shoulder pain and dysfunction, with their prevalence increasing with age. Diagnosing these injuries accurately is crucial for determining appropriate treatment strategies. Various imaging modalities, such as high-resolution ultrasonography (HRUS), magnetic resonance imaging (MRI), and magnetic resonance arthrography (MRA), play a pivotal role in identifying rotator cuff injuries. MRI, considered the gold standard, offers detailed insights into tendon degeneration, partial tears, and full-thickness tears. Meanwhile, HRUS is favored for its cost-effectiveness, non-invasive nature, and real-time dynamic assessments. This review compares these imaging techniques, highlighting their diagnostic accuracy, strengths, and limitations in the context of rotator cuff injuries. Although MRI provides comprehensive information on tendon pathology and associated conditions like muscle atrophy, HRUS remains a valuable tool due to its accessibility and accuracy in diagnosing both partial and full-thickness tears. Understanding the comparative efficacy of these imaging modalities is essential for clinicians to make informed decisions about patient management.
Human papillomavirus vaccine for cervical cancer prevention in India: new improvement and way forward
Authors: Sharma Meenakshi , Kaur Ikjot , Sandhu Renu , Kaur Samandeep
Published: October 2024

Cervical cancer is the malignant abnormal changes in the tissues of cervix mostly transmitted through the human papilloma virus. Prophylactic vaccination against HPV is effective strategy to prevent cervical cancer.  India has access to two types of vaccines that are licensed worldwide, the bivalent cervarix and the quadrivalent Gardasil. The drug controller general of India has authorized “CERVAVAC” a new HPV vaccination that is less expensive and is being offered in India as a single dose for females between the ages of 9 and 19 years. The government said in February 2024 that girls between the ages of 9 and 14 will receive the HPV vaccine as part of universal immunization programme. There are significant obstacles to vaccination implementation in India like lack of epidemiological evidences for illness prioritization, vaccine duration, parental attitude and vaccine acceptance.  The WHO's goal of eradicating cervical cancer by 2030 depends on implementing socially and culturally relevant public awareness campaigns after educational initiatives for healthcare professionals.
Porokeratotic eccrine and ostial dermal duct nevus
Authors: Shah Dhyey Nimish , Patel Naisargi S. , Laliwala Reeza I. , Joshi Ketuman N. , Patel Krina B.
Published: October 2024

Porokeratotic eccrine ostial and dermal duct nevus (PEODDN) is a rare benign eccrine nevoid hamartoma with only a few cases reported till date. It is characterized by asymptomatic or mildly pruritic pitted comedone-like papules on palms or soles and keratotic papules and plaques in a linear pattern on the extremities, usually present in childhood. We present here three interesting cases of the same. Diagnosis was confirmed by histopathology which showed parakeratotic columns overlying mature eccrine sweat glands in dermis and dyskeratotic cells of lower epidermis.
Cosmetics and skincare routine in acne prone skin
Authors: Jain Naina
Published: October 2024

The growing awareness and indulgence of the general population into cosmetics make it essential for us, as dermatologists, to know when to avoid or consume them in the management of acne. This review, therefore, deals into specifics of cosmetics, acne cosmetica and recommendations on use of cosmetics in an acne prone skin.
A Ciência Aberta e Aplicação dos Princípios Fair em Políticas Públicas
Authors: Barbosa de Oliveira Nilson
Published: October 2024

Este estudo investiga o papel significativo da ciência aberta e dos princípios de encontrabilidade, acessibilidade, interoperabilidade e reutilização de dados na promoção da inclusão digital em políticas públicas, com foco na melhoria da acessibilidade para indivíduos com baixa visão e necessidades especiais. O objetivo é identificar melhores práticas, desafios e recomendaçoes que possam fortalecer a implementação desses princípios em iniciativas de inclusão digital. A pesquisa inclui uma análise de recursos digitais, iniciativas em políticas públicas existentes e uma revisão da literatura sobre inclusão digital. Os resultados oferecem insights valiosos para formuladores de políticas, pesquisadores e profissionais interessados em aprimnorar a inclusão digital, com metas para tornar a sociedade mais equitativa e inclusiva.
Ciência Aberta e os Desafios para o Compartilhamento de Dados de Pesquisa Genômica.
Authors: Da Silva Fabio Bernardo , Viviane Santos de Oliveira Veiga
Published: October 2024

Este trabalho, discute os desafios para o compartilhamento de dados de pesquisa genômica alinhado aos princípios FAIR. Para compreender melhor o campo, é proposto o Modelo de Fatores que Influenciam o Compartilhamento de Dados, que engloba a visão tecnológica e social do compartilhamento de dados, aliados aos princípios FAIR.  Esse modelo apresenta os fatores de benefícios, custos e fatores contextuais na compreensão da percepção dos pesquisadores e o comportamento de compartilhamento de dados. Além disso, ao identificar as barreiras, fatores e problemas percebidos pelo pesquisador é possível dirimi-los e minimizá-los. O modelo de fatores será utilizado junto aos pesquisadores que desenvolvem atividades de pesquisa na área de dados genômicos. Objetivando garantir que estes dados de pesquisa sejam reutilizáveis na ciência em prol da sociedade, apoiar a gestão de dados na pesquisa em genômica e levantar os requisitos para um modelo que busque garantir a gestão de dados FAIR na área de genômica, promovendo o compartilhamento de dados genômicos aberto e gratuito.
Living with psychotropic drugs: A community photovoice study in people with high treatment adherence in Southeastern Spain
Authors: Martínez-Granados Francisco , Briones-Vozmediano Erica , Ronda Elena
Published: October 2024

Adherence to psychopharmacological treatment essentially involves a process of meaning-making. The objective of this study was to explore the experience of people undergoing chronic psychiatric treatment from the patients’ perspective. In 2018, using the photovoice methodology, four sessions were conducted with the participation of 11 individuals from a community school in a socially marginalized neighborhood of a southeastern Spanish city, some of whom were also users of a social rehabilitation and integration center and a day center. Participants took and selected 41 photographs under the premise: “Photograph your experience regarding health and medication.” A categorization of the emerging narratives was carried out during a dialogical session between participants and researchers, which was recorded for subsequent transcription and analysis. The experiences were divided into two major symbolic themes that seek to give therapeutic meaning to medication: one of conflict and the other of motivation.
Abusive Supervision as Predictor of Perceived Stress and Cyberloafing at Work
Authors: Duran Bahtiyar , Metin-orta İrem
Published: October 2024

The increasing prevalence of Internet use in recent years has led to a growing interest among researchers in cyberloafing behaviors. In general, cyberloafing at work is defined as employees’ voluntary access of the Internet for personal purposes. Previous research has shown its link with individual and organizational outcomes. This study examines the effects of abusive supervision and perceived stress on cyberloafing behaviors among employees. In addition, it investigates whether perceived stress mediates this relationship. The sample consisted of 265 employees working in various sectors. They participated in an online survey and filled out a questionnaire consisting of items that assess abusive supervision, perceived stress, and cyberloafing behaviors at the workplace. The results showed that abusive supervision positively predicts employees' cyberloafing behaviors. It was also revealed that supervisor’s abusive behaviors predict greater levels of perceived stress among employees. However, the experience of stress did not play a mediating role in the relationship between abusive supervision and cyberloafing. This study contributes to a better understanding of the effects of leaders’ misbehaviors on employees’ perceived stress levels and counterproductive behaviors at work. It also provides suggestions for managing workplace mistreatment.
İleri Görev Bilincinin Rol Performansı Üzerine Etkisinde İçsel Güdülenmenin Aracı Rolü
Authors: Merdan Ethem , Erdem Ahmet Tuncay
Published: October 2024

İşini seven çalışanların sorumluluk almaktan kaçmayacakları düşünülerek bu bireylerin verilen görevleri en iyi şekilde yerine getirmeye, yüksek performans göstermeye çalışacakları bilinmektedir. Bunun gerçekleşmesi için, çalışanları motive eden faktörlerin sağlanması önemlidir. Performansın artmasını sağlayan önemli etkenin ileri görev bilinci olduğu düşünülmekte ve başka motive edici unsurların da olması beklenmektedir. Bu kapsamda araştırmada amaç, ileri görev bilincinin rol performansı üzerindeki etkisinde içsel güdülenmenin aracılık rolünü tespit etmektir. Araştırma amacı doğrultusunda araştırma sorusu “ileri görev bilincinin rol performansına etkisinde içsel güdülenme aracı rol oynamakta mıdır?” olarak belirlenmiştir. Araştırma sorusunun cevaplanabilmesi için araştırma örneklemi Kırşehir Ahi Evran Üniversitesi’ndeki akademik personeller (n=484) olarak belirlenmiştir. Örneklemden anket yoluyla elde edilen veriler SPSS 24 ve AMOS 26 programlarıyla analiz edilmiştir. Araştırma sonucunda ileri görev bilincinin içsel güdülenmeyi pozitif yönde etkilediği, içsel güdülenmenin de rol performansını pozitif yönde güçlendirdiği belirlenmiştir. Ayrıca ileri görev bilincinin rol performansı üzerindeki etkisinde içsel güdülenmenin kısmi aracı role sahip olduğu tespit edilmiştir. Araştırma sonucunda çalışanlarda ileri görev bilincinin arttırılmasıyla içsel güdülenme ve rol performansının güçlenebileceği ve bu durumun da örgütlerde etkinliği, verimliliği ve sürdürülebilirliği arttırabileceği söylenebilir.
The Relationship between Job Satisfaction and Turnover Intention: A Meta-Analysis
Authors: Ersoy Aslı
Published: October 2024

This paper aims to determine the effect size and direction of the association between hospitality employees' job satisfaction and turnover intention through a meta-analysis. Relevant studies were systematically searched in the Web of Science (WoS), EBSCOhost Hospitality & Tourism Complete, and Google Scholar databases. Ultimately, 32 studies examining the connection between job satisfaction and turnover intention, with reported correlation coefficients and sample sizes, were included in the research. The analyses were conducted using the CMA 3.0 program. To assess publication bias, a funnel plot, Begg & Mazumdar rank correlations, and Classic Fail-safe N tests were applied. Utilizing a random effects model, the study identified a moderate and negative association between job satisfaction and turnover intention (r =-0.434, p < 0.005). Additionally, the moderating role of the sampling region in the relationship between these variables was confirmed. Based on the findings, practical recommendations are provided for hospitality managers.
Ruminasyon ve İş Erteleme Davranışının (Prokrastinasyon) Örgütsel Atalet Üzerindeki Etkilerinin İncelenmesi
Authors: Canbolat Mehmet Ali
Published: October 2024

Sürekli güncellenen muhasebe ve vergi mevzuatları, mükelleflerden gelen talepler ya da veri girişleri gibi dikkat gerektiren işler neticesinde, muhasebe meslek mensuplarının günlük yaşantıları da göz önünde bulundurularak ruminasyon ve iş ertelemeye yatkın bir sektörde çalıştıkları söylenebilir. Araştırmanın amacı muhasebe meslek mensuplarında ruminasyon ve iş ertelemenin örgütsel atalete olası etkilerinin tespit edilmesidir. Nicel araştırma deseninde tasarlanan araştırma 396 muhasebe meslek mensubu ile yürütülmüştür. Korelasyon analizi bulgularına göre, ölçek ve alt boyutların birbirleri ile istatistiksel olarak anlamlı, pozitif yönde ve orta düzeyde ilişkili oldukları saptanmıştır. Bu ilişkiler örgütsel atalet ile alt boyutları arasında yüksek düzeyde tespit edilmiştir. İleri analizlerde ise hipotez testleri için gerçekleştirilen yapısal model analizi bulgularına göre ruminasyon ve iş ertelemenin örgütsel atalet üzerinde pozitif yönde bir etkisinin olduğu tespit edilmiştir.
The Impact of Social Factors on the Cultural Tendencies and Leadership Preferences: The Moderating Role of Organizational Culture
Authors: Özbay Edibe , İlhan-nas Tülay
Published: October 2024

This study aims to examine the relationship between individuals' leadership preferences and social factors in organizations, considering the moderating effect of organizational culture. Data was collected through 242 questionnaires from production companies in the Organized Industrial Zones of Istanbul. When the findings are generally evaluated, it was concluded that individuals' social factors directly affect both their leadership preferences and cultural tendencies at individualism and collectivism dimensions. It was found that the authoritarian dimension of the social factor positively influenced collectivist cultural tendencies and paternalistic leadership preferences, while the democracy dimension of the social factor positively influenced both individualistic and collectivist cultural tendencies, democratic leadership preferences and servant leadership. In addition, it was found that the perception of organizational culture did not affect social factors and individualism or collectivism cultural dimensions but had a direct positive effect on leadership preferences.
Dinamik Yetenekler: Bir Ölçek Uyarlama Çalışması
Authors: Bayram Vildan
Published: October 2024

Bu çalışma, Wilden, Gudergan, Nielsen, & Lings (2013) tarafından geliştirilen Dinamik Yetenekler Ölçeği’nin Türkçeye uyarlanması kapsamında, güvenirlik ve geçerlilik değerleri ile ilgili bulguları içermektedir. Çalışma, iki farklı örneklemden (n1=174, n2=227) alınan verilerle yürütülmüştür. Ölçeğin Algılama, Ele Geçirme ve Yeniden Yapılandırma alt boyutlarından oluşan orijinal üç faktörlü yapılanmasının Türkçe uyarlamasında yapılan analizler sonucunda, iki faktörlü bir yapı gösterdiği belirlenmiştir. Bu iki boyut “Algılama Ele Geçirme” ve “Yeniden Yapılandırma” olarak adlandırılmıştır. Orijinal ölçekte bulunan 8. Madde binişik madde olduğu için ölçekten çıkarılmıştır. Ölçeğin güvenirlik analizleri sonucunda Dinamik Yetenekler ölçeğinin tümü için Cronbach’s Alpha katsayısı ,90; “Algılama Ele Geçirme” alt boyutu için ,87 ve “Yeniden Yapılandırma” alt boyutu için ,83 olarak hesaplanmıştır. AVE değeri ,66 ve CR değeri ,84 olarak tespit edilmiştir. Elde edilen sonuçlar, uyarlaması yapılan ölçeğin, Türkiye’deki iş yaşamı için dinamik yeteneklerin ölçülmesinde geçerli ve güvenilir olarak kullanılabilecek bir ölçüm aracı olduğunu ifade etmektedir.
Homogeneous Catalysts of RedOx Processes Based on Heteropolyacid Solutions. VI: Developing a Process for Low-Temperature Oxidation of CO with Oxygen
Authors: Rodikova Yu. A. , Zhizhina E. G.
Published: October 2024

Research on the development of a homogeneous process for low-temperature oxidation of carbon monoxide in the presence of a “platinum group metal + vanadium-containing heteropolyacid (HPA)” catalytic system has been presented. The optimal reaction conditions, ensuring the maximum rate of CO oxidation to CO2, have been determined; for this reaction the kinetic features have been established, and its mechanism has been proposed. It has been shown that homogeneous systems based on PdII complex exhibit high activity and productivity, but have low stability and operate only at pH below 1,5. The stability of the catalyst can be increased by simultaneous introduction of σ- and π-donor ligands into the system; however, it is more effective to use the PtIV complex in the presence of catalytic amounts of palladium salt at a ratio of 100/1. The transition from HPA solutions with a low content of vanadium atoms (H7PMo8V4O40) to solutions of modified compositions (H10P3Mo18V7O84) ensures an increase in the activity and productivity of the system, with the kinetics of CO oxidation being maintained. The combined homogeneous catalyst PtIV + PdII + H10P3Mo18V7O84 remains stable during multi-cycle use without reducing activity, operates without an induction period and can be used at pH range of 1,7–2,0, which simplifies the process equipment.
Production of synthetic high-octane gasoline from associated petroleum gas
Authors: Narochniy G. B. , Saliyev A. N. , Zubkov I. N. , Timokhina A. M. , Bozhenko Е. A. , Chernysheva A. V. , Kolobkov B. I. , Savost'yanov A. P. , Yakovenko R. Е.
Published: October 2024

The article proposes a method for producing high-octane gasoline from associated petroleum gas (APG), which consists of a combination of the processes of direct aromatization of APG and Fischer-Tropsch synthesis (FT). The APG aromatization process was experimentally studied in a flow-through installation at a pressure of 0,1 MPa and a temperature of 450-600 °C on a ZnO/ZSM-5/Al2O3 catalyst. It has been shown that at a temperature of 600 °C the degree of conversion of C3+ hydrocarbons is 27,8%, and the yield of aromatic hydrocarbons is 10,9 %. The synthesis of FT was studied on a hybrid Co-Al2O3/SiO2/ZSM-5/Al2O3 catalyst at a temperature of 250 °C, pressure 1,0 MPa, GHSV 1000 h-1. A pilot batch of synthetic gasoline fraction with a volume of 1 liter was produced at a pilot plant, and its main physicochemical and operational properties were analyzed. It has been shown that compounding the gasoline fraction of the FT synthesis and direct aromatization products of APG makes it possible to increase the octane number from 78,5 to 92,8 units, while the density increases from 710 to 778 kg/m3. The proposed technological solutions can be used for processing APG into high-octane synthetic gasoline using GTL modular units.
Composites based on cellulose and metal-organic frameworks for dye removal from wastewater
Authors: Panchenko V. N. , Zubkova E. Yu. , Timofeeva M. N.
Published: October 2024

Industrial effluents from enterprises using dyes are among the main production wastes polluting the environment and surface waters. In order to solve this problem, much attention has recently been paid to innovative processes for their removal. The review considers research works over the past 10 years on various biological, chemical and physical methods for dye removal and assesses their effectiveness. The possibility of using cellulose and cellulose-based materials for dye removal from aqueous solutions is shown. The main attention is paid to composites based on cellulose and metal-organic frameworks (Cell-MOF). The main approaches to the creation of Cell-MOF materials and the possibility of regulating their properties are considered. Examples of using Cell-MOF materials for removing dyes from aqueous solutions by adsorption and catalytic methods are given. Prospects and problems of their practical use are discussed.
Plasmonic antennas based on rectangular graphene nanoribbons with controlled polarization of terahertz and infrared radiation
Authors: Makeeva Galina S.
Published: October 2024

Background. To develop new terahertz wireless communication systems with high throughput and transmission speeds, such as 6G and above, effective control of the polarization direction of emitted terahertz waves is necessary, but most methods are technologically complex and expensive. The implementation of terahertz antennas and devices based on 2D materials such as graphene solves the problem associated with developing effective control. Aim. Study of the possibility of controlling the polarization of terahertz and IR radiation of plasmonic antennas based on rectangular graphene nanoribbons by changing the chemical potential (application of an external electric field). Methods. This important scientific problem related to the design of terahertz antennas can largely be solved by simulation using the electrodynamic simulation program CST MWS 2023. Results. Plasmon terahertz antennas based on rectangular graphene nanoribbons were chosen as the object of analysis and the possibility of emitting waves of two orthogonal polarizations was shown. Methods have been identified for controlling the polarization of terahertz and IR radiation from such antennas, based on the selection of operating frequencies corresponding to the resonances of the modes of surface plasmon-polaritons, and the application of metallization to the dielectric substrate. Conclusion. The ability to control the polarization of terahertz and IR radiation makes it possible to create both new elements of plasmonic antenna arrays and new communication technologies, including future 6G networks.
Effect of Hyaluronic Acid Mucoadhesives on Palatal Wound Healing and Postoperative Discomfort in Free Gingival Graft Surgery: A Clinical Trial
Authors: Nabiyi Parisa , Jenabian Niloofar , Kazemi Sohrab , Moghadamnia Ali Akbar , Seyedmajidi Seyed Ali
Published: October 2024

Objectives: This study aimed to assess the effect of hyaluronic acid (HA) mucoadhesives with two different concentrations on palatal epithelial wound healing and postoperative discomfort following free gingival graft (FGG) surgery.
Materials and Methods: In this triple-blind, randomized, controlled clinical trial, 39 patients undergoing FGG surgery were randomly allocated to three groups (N=13). Following palatal graft harvesting, the two experimental groups received mucoadhesives containing 0.8% and 0.2% HA, while the control group received mucoadhesives without HA. In all groups, the donor site was protected with periodontal dressing. Epithelization, color match, contour, and distortion were assessed at 3, 7, 14, 21, and 42 days, postoperatively using the Landry's healing index and modified Manchester Scar Proforma (mMSP) index. Pain level and response to thermal stimuli were evaluated after 3, 7, 14, and 21 days using a visual analog scale (VAS). Data were analyzed by the Chi-square, Kruskal-Wallis, Mann-Whitney, Friedman, and Wilcoxon signed-rank tests (alpha=0.05).
Results: Significant differences were observed in the mMSP index scores among the groups at 3, 7, 14, and 42 days, favoring HA groups (P<0.05). The Landry's healing index score was significantly higher in 0.8% HA group on day 21 (P=0.023), compared to the control group. No significant differences were found in pain score or thermal stimulus responses among the groups (P>0.05).
Conclusion: Mucoadhesives containing HA were found to enhance palatal wound healing, leading to improved outcomes in terms of epithelization, color match, contour, and distortion reduction.
Un composant essentiel qui assure la stabilité du marché national de la République démocratique du Congo ; Dans un contexte macroéconomique.
Authors: NGOMA PANZU Jean Marie
Published: October 2024

La quantité de devises joue un rôle crucial dans la préservation de l'équilibre du marché national en République Démocratique du Congo. La Banque Centrale du Congo joue un rôle essentiel dans la gestion prudente de cet agrégat afin de maîtriser l'inflation, garantir la stabilité économique, favoriser l'investissement, équilibrer la balance des paiements et renforcer la confiance dans l'économie interne.
Les transnationales et la création des emplois
Authors: NGOMA Jean Marie
Published: October 2024

Actuellement, la mondialisation occupe une place cruciale et exerce une influence significative sur l'emploi et le marché du travail à travers le monde, notamment dans les pays développés et les pays en développement. Globalement, la mondialisation se manifeste dans tous les pays développés et en développement.
Niobium Pentoxide as an Acid Catalyst: An Overview
Authors: Guedes Ana Paula de Melo , Miranda Débora Luísa Rosendo Tomé De , Gondim Amanda Duarte , Lima Junior Claudio Gabriel
Published: October 2024

The global chemical industry is under increasing pressure to adopt more sustainable practices, as most chemical products exceed environmental safety limits. Given that chemical production largely relies on catalytic processes, the development of solid acid catalysts has become crucial for more sustainable production. Among these catalysts, niobium pentoxide stands out due to its strong acid sites, which remain active in the presence of water, and its stability under hydrothermal conditions. Recent studies have demonstrated that these solids maintain their catalytic activity even in the presence of strong bases, making them unique catalysts. This review explores the potential of niobium pentoxide as an acid catalyst, addressing advances in synthesis techniques, surface modifications, and combinations with other materials to enhance its catalytic performance in sustainable applications, such as biomass conversion and biofuel production, opening new pathways for the production of greener chemicals. Finally, the future perspectives of niobium pentoxide - based catalysts in green chemistry are discussed.
Vibration analysis using the theory of exponential shear deformation for laminated plates
Authors: Bendahane Khaled , Sehoul Mohammed , Bouguenina Otbi , Benahmed Abdelkrim
Published: October 2024

In this research, the free vibration response of laminated composite plates is studied using a refined exponential shear strain theory. The most interesting feature of this theory is that it allows exponential distributions of transverse shear strains, and verifies zero-shear boundary conditions on the plate surfaces without the use of shear correction factors. Some stiffness constants are written as a series. The number of independent unknowns in the present theory is four, compared with five in other shear deformation theories. The equations of motion are obtained from Hamilton's principle and Navier's method is used to determine the exact solution for antisymmetric cross-laminated plates. The numerical results found in the present analysis for free vibration are presented and compared with those available in the literature. The proposed theory is not only accurate, but also effective in predicting the fundamental frequencies of laminated composite plates.
New Approach for Tracking, Monitoring, and Diagnosing Faults in a Photovoltaic System in Real Time: An Experimental and Case Study
Authors: Boucerredj Leila , Khechekhouche Ali , Benalia Nadir , Khechekhouche Abderrahmane , Siqueira Antonio Marcos de Oliveira , Campos Julio Cesar Costa
Published: October 2024

Photovoltaic installations have emerged as a cornerstone of sustainable energy production, playing a pivotal role in the global transition towards renewable sources of electricity. As the demand for clean energy surges, so too does the need for robust monitoring and diagnostic strategies to ensure the efficient operation of these systems. This study presents a novel methodology for the real-time tracking, monitoring, and diagnosing of faults in photovoltaic systems (PVSs), emphasizing their crucial role in sustainable energy production amid the global shift to renewable energy. The study was conducted in Guelma, Algeria, during the spring and summer seasons. The investigation utilized WatchPower simulation software over a 24-hour performance analysis of the photovoltaic system. On June 19, 2023, with a high temperature of 32°C, the system achieved a peak output power of 600W under optimal conditions, validating its efficiency in energy generation. The study also analyzed the effects of shading on energy output by comparing data from a shaded day on May 14, 2023, at 25°C, to an unshaded day on June 21, 2023, at 32°C, during peak sunlight hours from 9:00 AM to 2:15 PM, the period when sunlight is at its strongest. The results showed a significant drop in output power from 600W to 450W due to shading, underscoring the importance of real-time monitoring to detect performance inefficiencies. This research not only enhances operational reliability and maintenance strategies for PV systems but also demonstrates the effectiveness of integrating real-time data analytics to support decision-making in similar environments.