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Article Citation - WoS: 3Citation - Scopus: 3Modeling and Measurement of Human Body Blockage Loss at 28 Ghz(Taylor & Francis Ltd, 2023) Benzaghta, Mohamed; Gokdogan, Bengisu Yalcinkaya; Coruk, Remziye Busra; Kara, AliMillimeter-wave (mm-Wave) spectrum is an essential enabler to the fifth generation (5G) wireless technology. Humans are one of the most noticeable blockers that cause temporal variation in indoor radio channels. This paper presents human blockage measurements at 28 GHz, with several humans of different sizes. The effect of the crossing orientations of the human bodies is investigated for three different transmitter heights. A human blockage model based on the Fresnel diffraction scheme is shown to be applicable in estimating the human blockage loss in indoor radio links considering various body sizes, different crossing orientations, and different transmitter heights. The findings reported in this paper could help improve indoor radio channel models at 28 GHz bands for 5G technologies considering the presence of human body blockages.Article On a Boundary Value Problem for a Class of Second-Order Complex Partial Differential Equations(Univ Simon Bolivar, 2023) Aksoy, Umit; Celebi, Ahmet OkayIn this article, a boundary value problem for a second-order complex partial differential equation whose main part is the Laplacian, is introduced and its solvability is discussed by reduction of the problem into the Schwarz problem for a first-order equation. The condition for solvability is presented and an estimate for the unique solution is provided.Article Correlation of Clinical Signs and Magnetic Resonance Imaging Findings in Patients With Lumbar Spondylosis(Turkish League Against Rheumatism, 2023) Altan, Lale; Ökmen, Burcu Metin; Tuncer, Tiraje; Sindel, Dilşad; Çay, Hasan Fatih; Hepgüler, Simin; Uğurlu, HaticeObjectives: The purpose of the study was to contribute further to this debated topic by investigating the correlation of magnetic resonance imaging (MRI) findings with the clinical picture in lumbar spondylosis patients. Patients and methods: This multicenter retrospective study (as part of the epidemiological project of the TLAR-OASG [Turkish League Against Rheumatism-Osteoarthritis Study Group]) included 514 patients (101 males, 413 females; mean age: 63.6±10.8 years; range, 40 to 85 years) who were diagnosed as lumbar spondylosis by clinical examination and direct X-ray between December 2016 and June 2018. Demographic characteristics of patients, Visual Analog Scale for pain, presence of radiating pain, Roland-Morris disability questionnaire, straight leg raise test, deep tendon reflexes, neurogenic intermittent claudication symptoms, any decrease of muscle strength, and abnormality of sensation were recorded. Lumbar MRI findings of the patients were recorded as positive or negative in terms of disc herniation, intervertebral disc degeneration, root compression, osteophytes, spinal stenosis. Statistical analysis was done to assess the correlation between the clinical symptoms, physical examination, and MRI findings. Results: Correlation analysis of the MRI results and the clinical findings showed a significant correlation between straight leg raise test and root compression (p<0.001, r=0.328) and a significant correlation between neurogenic intermittent claudication and spinal stenosis (p<0.001, r=0.376). Roland-Morris disability questionnaire had a significant correlation with all MRI findings (p<0.05, r<0.200). Conclusion: The results of this study corroborate the notion that diligent patient history and physical examination are more valuable than MRI findings, even though a higher incidence of abnormal MRI findings have been obtained in patients with disability and dermatomal radiating pain.Article Citation - WoS: 2Citation - Scopus: 1Can Job Crafting Be a Remedy for Struggling With Work Alienation? the Moderator Effect of Perceived Supervisor Support*(Nomos verlagsgesellschaft Mbh & Co Kg, 2022) Aydin, Esra; Cinar, Esra; Basim, H. NejatDrawing on self-determination theory, this study focuses on the relationship between job crafting and work alienation and the moderating effect of perceived supervisor support. Based on theoretical discussions, this study examines (1) whether a negative relationship exists between job crafting and work alienation; (2) whether and how perceived supervisor support moderates that relationship. Findings are based on the data collected from a survey of 203 participants working in Turkey. The results indicate job crafting's negative association with work alienation. Perceived supervisor support is a moderating variable, fostering employee that, in turn, leads to reduced work alienation.Article Citation - WoS: 3Citation - Scopus: 4Structural, Optical and Electrical Properties of Bi1.5zn0.92< Pyrochlore Ceramics(Univ Fed Sao Carlos, dept Engenharia Materials, 2021) Qasrawi, A. F.; Abdalghafour, Mays A.; Mergen, A.Herein, the structural, morphological, compositional, optical, electrical and dielectric properties of Bi1.5Zn0.92Nb1.5-6x/5WxO6.92 (BZN) solid solutions are reported. Tungsten substituted BZN ceramics which are fabricated by the solid state reaction technique exhibited solubility limits at substitution level below x=0.18. Remarkable engineering in the structural, optical, electrical and dielectric properties of the pyrochlore ceramics is achieved via W substitution. Namely, shrinkage in both of the lattice parameters and in the energy band gap accompanied with decrease in the microstrain, in the dielectric constant and in the electrical resistivity is observed upon increasing the W content below the solubility limit. The increase in the W content in the BZN ceramics enhances the densification of the pyrochlore and leads to higher light absorbability and larger crystallites growth. The temperature dependent electrical resistivity measurements has also shown that the pyrochlore exhibit thermal stability below 380 K.Article Citation - WoS: 1Retrospective Evaluation of Potential Rabies Exposure Cases Over Nine Years: Single-Center Experience(Bilimsel Tip Yayinevi, 2024) Demircan, Serife Altun; Kilic, Esra Kaya; Tulek, Necla; Kinikli, Sami; Bulut, CemalIntroduction: T & uuml;rkiye is the only European country where suspected rabies exposure from animal contact is a significant public health concern. In this study, we evaluate cases investigated in our vaccination center, where individuals with suspected rabies exposure have been seeking consultation for many years. The evaluation encompasses demographic characteristics, distribution by years and seasons, the type of animal involved in the contact, the prevalence of stray animals, and the rabies vaccination status of owned animals. Materials and Methods: The study involves cases reported to the Public Health Center from those who sought consultation at our center between January 1, 2011, and December 31, 2019. Demographic characteristics, distribution by years and seasons, the type of animal involved in the contact, the prevalence of stray animals, and the rabies vaccination status of owned animals were retrospectively evaluated. Results: Over the nine years, there were a total of 39.731 cases, resulting in an average of 4414 cases per year. Of these cases, 61% were male, and 68.83% were between the ages of 15 and 64. The most cases occurred in summer and autumn. Of the suspected rabies contacts, 69% involved dogs, and 83.4% of these dogs were unowned. Forty-one point eight percent of the owned dogs were vaccinated. Eighty-nine point six percent of the cats were unowned, and the rate of vaccination among the owned cats was 28.2%. Over the years, there has been a decrease in the use of the 10 -day observation approach, while an increase in the administration of rabies vaccine and/or immunoglobulin has been observed. Conclusion: Seventy percent of all risky rabies contacts involve dogs, with a high rate of 84% of these dogs being unowned. To mitigate contact involving the risk of rabies, addressing the uncontrolled reproduction of stray animals, particularly dogs, and ensuring control and vaccination of the existing animal population appear to be primary measures. Improving the vaccination rate of owned animals, currently at only 30-40%, can prevent people from encountering risky rabies contacts, thereby potentially reducing the need for rabies prophylaxis significantly.Article Citation - WoS: 6Effectiveness of Proprioceptive Neuromuscular Facilitation and Myofascial Release Techniques in Patients With Subacromial Impingement Syndrome(Taylor & Francis Ltd, 2022) Celik, Merve Sinem; Sonmezer, Emel; Acar, ManolyaPurpose To compare the effectiveness of proprioceptive neuromuscular facilitation and myofascial release technique in patients with subacromial impingement syndrome on pain, range of motion, muscle strength, quality of life, functionality and disability. Methods Thirty patients were randomly divided into two groups: proprioceptive neuromuscular facilitation group (n = 15) and proprioceptive neuromuscular facilitation combined with myofascial release technique group (n = 15). Both treatment methods were performed 3 times a week for 4 weeks. Pain severity was assessed by Visuel Analog Scale, range of motion by a goniometer, muscle strength by digital hand dynamometer, quality of life by Nottingham health profile, functionality by arm, shoulder and hand problems questionnaire, disability by shoulder pain and disability index. All measurements were used before and after treatments. Pain severity, range of motion and muscle strength were also evaluated after the first session. Results After the treatment, shoulder pain, range of motion, muscle strength, functionality and disability were improved in two groups (p < 0.05). Proprioceptive neuromuscular facilitation showed improvement in pain, whereas myofascial release technique improved pain, physical activity, emotional state, sleep and total dimensions of life quality (p < 0.05). Proprioceptive neuromuscular facilitation was more effective in reducing activity pain, whereas myofascial release technique was more effective in increasing flexion, external and internal rotation range of motion, flexion and abduction muscle strength after the first session (p < 0.05). Conclusions The combined application of proprioceptive neuromuscular facilitation and myofascial release technique has a more acute and cumulative positive effect on pain, range of motion, muscle strength, functionality, disability and quality of life in patients with subacromial impingement syndrome.Article Analysing the Views of School of Foreignlanguages Instructors About Organizationalculture(Ani Publishing, 2021) Akman, Devrim; Koşar, DidemThis study aims to investigate the views of school of foreignlanguages instructors about organizational culture. The study is designed inqualitative research method and as a case study. The study was conductedwith 15 school of foreign languages instructors who were selected bymaximum variation sampling method during the 2018 and 2019 academicyear in Ankara. Semi structured interviews were conducted to gather dataand content analysis was used to analyse the data. The study emphasisesthat for the powerful school culture, instructors should focus on orientation,social activities, merit, and democratic management style.Article The Effect of Endurance-Based Sports on Athlete Success and Psychological Well-Being(Campus Educa Sports Sl, 2025) Ozpinar, Saliha; Yucel, Ali Serdar; Korkmaz, Murat; Oztas, Dilek; Kuyucu, Mihalis Michael; Aras, GoksenThe aim of this study is to examine the effects of psychological resilience on sport success and mental health. The relationships between commitment, control and challenge, which are sub-dimensions of psychological resilience, and sport success and psychological wellbeing were evaluated and discussed in detail. Today, the problems arising due to the increasing competitive environment and stress factors have made it more important for athletes to be psychologically strong. Although the relationship between psychological resilience and sport success has been previously examined in the literature, studies evaluating the individual effects of the sub-dimensions of resilience in a large sample group are quite limited. This study aims to overcome this deficiency and make an up-to-date contribution to the subject. A total of 684 students (72 percent male, 28 percent female) studying at the Faculties of Sport Sciences of 16 universities in Istanbul, Ankara, Izmir, Bursa and Antalya participated in the study. Participants completed the Resilience Scale and Mental Health Inventory, and their sporting achievements were evaluated by their coaches using the Sport Achievement Scale. Data were collected via Google Forms (R) and analysed using SPSS 22.0 software with correlation, regression and Granger causality tests. The findings revealed that all resilience sub-dimensions showed positive and significant relationships with sport achievement ( R-2=0.93) and psychological well-being (R-2=0.68). Especially control and challenge factors had the strongest effects. As a result of the research, commitment, control and challenge, which are the sub-dimensions of psychological resilience, significantly affect both success levels and psychological well-being of athletes. Therefore, resilience development programmes for athletes should focus on these areas.Article Citation - WoS: 4Citation - Scopus: 516s Bacterial Metagenomic Analysis of Herby Cheese (otlu Peynir) Microbiota(Istanbul Univ-cerrahpasa, 2021) Sudağıdan, Mert; Yurt, Mediha Nur Zafer; Taşbaşı, Behiye Büşra; Acar, Elif Esma; Ömeroğlu, Esra Ersoy; Uçak, Samet; Aydın, AliCheese microbiota may contain various bacterial species due to the use of different types of milk, rennet, and herbs. In this study, the distribution of the dominant bacteria present in the microbiota of herby cheese samples (n = 13) were examined by the next generation sequencing (NGS) technique. DNA was extracted both directly from cheese samples and after pre-enrichment. The metagenomic analysis of the NGS results revealed that Firmicutes were dominant both in DNA directly extracted from herby cheese (KOP), and pre-enriched samples (OP), at the phylum level. At the genus level, Lactobacillus, Lactococcus, and Streptococcus were dominant in the KOP samples, whereas in the OP samples, Enterococcus, Streptococcus, and Bacillus were determined as the dominant bacterial genera. Although Lactococcus raffinolactis and Streptococcus salivarius were dominant in the KOP samples, Enterococcus faecalis and S. salivarius were dominant in the OP samples. The Shannon species diversity index and principal coordinates analysis (PCoA) were used to determine the distribution in KOP and OP samples at the genus level. The PCoA of KOP-10, KOP-11, KOP-2, and KOP-7, KOP-3, and KOP-6 samples showed the wide distribution, whereas KOP-5, KOP-8, KOP-9, and KOP-14 herby cheese samples were closely related. The OP samples, especially OP-7 and OP-14, showed wide distribution in comparison to other OP samples. Finally, the dominant bacterial communities were identified by DNAbased metagenomic analysis, and this is the first report to elucidate the microbiota of herby cheese produced in Turkey using the NGS technique.
