Ufuk Universitesi Akademik Acikerisim Sistemi
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Tüketicilerin Akıllı Giyilebilir Nesnelerin Kullanımına Yönelik Davranış Niyetlerinin Genişletilmiş Teknoloji Kabul Modeli Aracılığıyla İncelenmesi
No full textAmaç – Bu çalışma ile nesnelerin interneti teknolojisi ile çalışan akıllı giyilebilir nesnelerin kullanımına yönelik tüketicilerin davranış niyetleri üzerinde hangi değişkenlerin etkisi olduğunun Genişletilmiş Teknoloji Kabul Modeli (GTKM) kapsamında incelenmesi amaçlanmaktadır. Yöntem – Araştırmanın ana kütlesini Ankara ilinde bulunan 18 yaş ve üstü tüketiciler oluşturmaktadır. Verilerin toplanmasında yüz yüze anket tekniği ve kolayda örnekleme yöntemi kullanılmıştır. Verilerin analizinde SPSS 23 ve AMOS 23 istatistik paket programlarından yararlanılmıştır. Günümüzde tüketicilerin kullanımına sunulmuş akıllı giyilebilir nesnelere ait tüm ürün gamı araştırma alanına dâhil edilmiştir. Araştırmanın amacına yönelik olarak 10 değişken (bilgi teknolojileri bilgisi, sosyal etki, gizlilik ve güvenlik, algılanan kullanım kolaylığı, maliyet, güven, algılanan fayda, uyumluluk, kullanıma yönelik tutum ve kullanım için davranış niyeti) ile araştırma modeli oluşturulmuştur. Bulgular – Çalışmada elde edilen bulgulara göre akıllı giyilebilir nesnelerin kullanımı için tüketicilerin davranış niyetleri üzerinde etkisi olduğu değerlendirilen bilgi teknolojileri bilgisi, algılanan kullanım kolaylığı ve algılanan fayda bağımsız değişkenlerinin kullanıma yönelik tutum bağımlı değişkeni üzerinde pozitif ve anlamlı etkisi olduğu tespit edilmiştir. Kullanıma yönelik tutum bağımlı değişkeninin ise kullanım için davranış niyeti bağımlı değişkeni üzerinde pozitif ve anlamlı etkisi olduğu belirlenmiştir. Ayrıca sosyal etki, gizlilik ve güvenlik, maliyet ve güven bağımsız değişkenlerinin tüketicilerin akıllı giyilebilir nesne kullanımına yönelik tutumları üzerinde etkisi olmadığı tespit edilmiştir. Tartışma – Giderek kullanımı yaygınlaşan akıllı giyilebilir nesnelerin kullanımına yönelik olarak işletmeler; yüksek bilgilendirme ve tüketicilerin ürünleri deneyimlemelerini sağlayarak, işlevselliği yüksek, sade, kolay işletebilirliğe sahip ve karmaşıklıktan uzak ürünler tasarlayarak akıllı giyilebilir nesnelere yönelik kabul ve kullanımlarını artırabilirler
Electrocatalytic Investigation by Improving the Charge Kinetics between Carbon Electrodes and Dopamine Using Bio-Synthesized CuO Nanoparticles
No full textWe have successfully studied the charge transfer kinetics between carbon paste electrodes and dopamine using green synthesized rectangular monoclinic CuO nanoparticles (NPs) prepared by Alchemilla vulgaris leaves with the one-pot green synthesis method. The scanning electron microscopy (SEM) results confirmed the monoclinic structure with a particle size of around 85 nm. The investigation of thermal properties was carried out by thermogravimetric (TG) and differential thermal analysis (DTA). We also studied the electrochemical response of green synthesized CuO nanoparticles to detect Dopamine (DA) using cyclic voltammetry, which was proven to be an excellent electrocatalyst for the electro-oxidation of DA. The fabricated CuO nanoparticle modified carbon paste electrode (CMCPE) depicts fantastic selectivity, robustness, and sensitivity in analyzing DA in clinical and pharmaceutical preparations. The highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) orbitals of the DA were studied using positive and negative charges at the CuO modified carbon paste electrode interface. Frontier molecular orbitals of DA are plotted to understand electron transfer reactivity at the electrode interface.Bartin University Scientific Research Projects Unit, Turkey [2019-FEN-A-006]The authors gratefully acknowledge Bartin University Scientific Research Projects Unit, Turkey for providing financial support to conduct the research (Project number: 2019-FEN-A-006)
Hemşirelerin hastane etik iklim algılamalarının iş doyumu üzerine etkisinin belirlenmesi
No full textAmaç: Kamu hastanelerindeki hemşirelerin çalıştıkları hastanelerdeki hastane etik iklimi algılamalarının iş doyumu üzerine etkisinin belirlenmesi amacıyla planlanmıştır. Yöntemler: Üniversite ve devlet hastanelerinde çalışan ve araştırmaya katılmayı kabul eden 273 hemşireden tanıtıcı bilgi formu, Hastane Etik İklim Ölçeği (HEİÖ) ve İş Doyumu Ölçeği ile veriler toplanmıştır. Verilerin değerlendirilmesinde Pearson Momentler Çarpımı korelasyon analizi, Durbin Watson testi, Lineer Regresyon analizi, t Testi, Tek Yönlü Varyans analizi (ANOVA), Dunnet T3 Post Hoc testi, Kurskal Wallis H testi, Mann Whitney U testi kullanılmıştır. Bulgular: Hemşirelerin %96’sı kadın, %53,8’ i evli, %46,5’ i hemşirelik lisans mezunu, %7’si hemşirelik yüksek lisans mezunudur. Katılımcılara uygulanan HEİÖ’inin toplam puan ortalaması 92,44±18,05, ve İş Doyumu Ölçeğinin toplam ortalaması ise 3,38±67 olup aralarında pozitif bir ilişki bulunmaktadır (p<0.05, r=0.539). Katılımcılardan mesleğini severek yapan ve hizmet içi eğitim alanların toplam Hastane Etik İklimi ve İş Doyumu puanları arasında istatistiki açıdan anlamlı fark vardır (p<0,05). Sonuç: Hemşirelerin hastane etik ikim algılarının ve iş doyumu genel puan ortalamalarının yüksek olduğu, etik iklim algısının arttıkça iş doyumu düzeylerinin arttığı saptanmıştır
Evaluation of the physical and emotional effects of the COVID-19 pandemic on patients with fibromyalgia and chronic low back pain: A multicenter cross-sectional controlled study
No full textObjectives: This study aimed to investigate the physical and emotional effects of the coronavirus disease 2019 pandemic in patients with fibromyalgia syndrome (FMS) and chronic low back pain (CLBP) patients. Patients and methods: The cross-sectional controlled study was performed with 1,360 participants (332 males, 1,028 females; mean age: 42.3 +/- 12.5 years; range, 18 to 65 years) between September 2020 and February 2021. The participants were evaluated in three groups: the FMS group (n=465), the CLBP group (n=455), and the healthy control group (n=440). Physical activity, pain levels, and general health status before and during the pandemic were evaluated in all participants. Stress levels were analyzed with the perceived stress scale (PSS) in all groups, and disease activity was analyzed with the fibromyalgia impact questionnaire (FIQ) in patients with FMS. Results: Patients with FMS had worsened general health status and pain levels during the pandemic compared to the other groups (p<0.01). The FMS group showed significantly higher PSS scores than those in other groups (p<0.01). There was a weak-positive correlation between FIQ and PSS parameters in patients with FMS (p<0.05, r= 0.385). Conclusion: The general health status, pain, and stress levels of the patients with FMS and CLBP tended to worsen during the pandemic. This high-stress level appeared to affect disease activity in patients with FMS
Sequential Ovarian Stimulation for POSEIDON Group 3-4 Poor Responders
No full textObjective: The most important issue in both the follicular and luteal phases of the same ovarian cycle (DuoStim) is determining the most appropriate stimulation protocol for the 1st OPU (follicular phase) and 2nd OPU (the luteal phase). We analyzed the POSEIDON 3-4 groups undergoing sequential stimulation treatment to investigate the effects on oocyte number, oocyte maturation, fertilization, and blastocyst rate. Material and Method: POSEIDON 3-4 groups were scheduled for a sequential stimulation protocol in a private fertility center. Ovarian stimulation was started with a fixed dose of 300 IU/day of a combination of gonadotropins (150 IU recFSH+75 IU rec LH along with an additional 75 IU rec FSH). Medroxy progesterone acetate 10mg/day using. Final oocyte maturation was induced with 0.2 mg triptorelin. Two days after the first retrieval, the second stimulation was initiated with the same protocol and daily dose. Ovulation was induced with a bolus of GnRHa with rec hCG (250mcg). One or two cleavage or blastocyst stage embryos were calculated. Results: 49 POSEIDON 3-4 patients were included in the final analysis, representing 98 cycles. The mean age was 34.4 ±6 years, and the serum AMH level was 0.85 ±0.2 ng/ml. The duration of stimulation (8.8±3.1 vs 8.2±3.6 days) and the total dose of gonadotropin used (2829±840 vs 1846±421 IU) were comparable. The mean number of oocytes retrieved (1.9 vs 2.1) and M2 oocytes (1.4 vs 1.7) were comparable. Mean oocyte maturation rates per cycle were also comparable (75.6% vs. 77.5%, respectively, p=0.8). Mean fertilization rates per cycle did not differ for oocytes collected (84.7% vs. 68.6%, p=0.06). The mean blastocyst rate per cycle was 63% and 69% respectively (p=0.8). At least 1 embryo was retrieved after the 1st and 2nd cycle or both in 79.6% of patients after DuoStim. Conclusion: DuoStim can be an effective method to reduce the time to achieve embryo and blastocyst, especially in POSEIDON 3-4. Also, with the sequential stimulation protocol, we can obtain the same number of oocytes and blastocyte rates in both cycles, and this methodology can save patients time. Further large-scale randomized controlled trials are recommended, especially for the POSEIDON 3-4 groups
The effect of calcineurin inhibitors on anthropometric measurements in kidney transplant recipients
No full textBackground This study was designed to investigate the effect of calcineurin inhibitors (CNIs), cyclosporine (CsA), and tacrolimus (Tac) on anthropometrics in kidney transplant recipients. Methods 111 of 128 adult kidney transplant recipients who received post-transplant CNIs were included in this retrospective study. Anthropometrics were recorded in the pre-transplant and post-transplant 4-year follow-up periods (1(st), 3(rd), 6(th), 12(th), 24(th), 36(th) and 48(th) months). Results Compared to pre-transplant values, significant increases in body weight and body mass index (between 3(rd) and 48(th) months), waist and hip circumferences (between 1(st) and 48(th) months), waist-to-hip ratio (between 1(st) and 3(rd) or 6(th) months) and neck circumference (between 1(st) and 12(th) or 24(th) months) were observed in both CsA and Tac groups. A significant increase was noted in post-transplant body fat percentage values for the 3(rd) to 24(th) months in the CsA group, whereas for the 24(th) to 48(th) months in both CsA and Tac groups. Hip circumferences percentage changes from the pre-transplant period to the 1(st), 12(th) and 24(th) months were significantly higher in CsA than in the Tac group. At each time point, there was no significant difference in percentage changes for other anthropometric parameters between the CsA and Tac groups. De novo diabetes mellitus developed in 8.3% of the CsA group and 19.1% of the Tac group. Conclusions After a successful kidney transplant, anthropometric measurements increase in most recipients. Although the effect of calcineurin inhibitor type on weight gain is unclear, a regression analysis showed that CNI type was not a risk factor for the development of obesity in the 48(th) month. However, it is helpful to be cautious about its dyslipidemic effect in patients using CsA and the potential hazards of using Tac in patients with a diabetic predisposition
Evaluation of COVID-19 Fear, Anxiety and Their Effects in Physiotherapy Technician Students
No full textObjective: To evaluate novel coronavirus disease-2019 (COVID-19) fear, anxiety, avoidance attitudes and their effects on vocational training in physiotherapy technician students. Material and Methods: Eighty physiotherapy technician students were included in this cross-sectional study. Data of the participants regarding the age, gender, number of grades, people living together, precautions taking against COVID-19; the presence of a history of COVID-19 in person/relatives, fears of COVID-19 transmitting and/or infecting during their vocational training, fears of not reaching professional goals and professional competence because of the pandemic and/or its consequences were collected. Coronavirus Anxiety Scale, The Fear of COVID-19 Scale and Avoidance Attitudes from COVID-19 Scales were applied. Results: There were the history of COVID-19 in person/relatives in 45%, the fears of transmission COVID-19 from a patient and infecting a patient with COVID-19 during their vocational training in 65% and 52.5%, the fears of not reaching professional goals and professional competence due to the pandemic in 70% and 65% of the participants. Female (p=0.002) and 2nd grade students (p=0.02) in those who fear not reaching professional goals, 2nd grade students (p=0.004) in those who fear of not reaching professional competence were significantly more compared to those who did not. The Fear of COVID-19 Scale score was significantly higher in those with fear of not reaching professional goals (p<0.001) and professional competence (p<0.001) compared to those who did not. Conclusion: The fears of not reaching professional goals and competence due to the pandemic and/or its consequences is common among physiotherapy technician students
Examining the effect of peer and self-assessment practices on writing skills
No full textThis study aims to reveal how peer- and self-assessment practices influence the writing skills of 9th grade students. The study adopted mixed-methods explanatory design. The participants were 102 students attending a public school in Ankara. The quantitative data were collected through a quasi-experimental method, and qualitative data were collected through a case study. There were three groups of participants in this study: the 1st experimental group in which peer-assessment was carried out with 34 participants; the 2nd experimental group in which self-assessment was conducted with 34 students, and 34 students in the control group. The interventions lasted 7 weeks. Writing performance tasks and rubrics were used to gather quantitative data while a Semi-Structured Interview Form was used to collect the qualitative data. For the analysis, paired samples t-test, ANOVA, and content analysis were used. The findings revealed that there was a significant difference between pre-test and post-test scores of experimental groups in which peer and self-assessments were conducted whereas there was not a significant difference between the scores of the control group. The findings of ANOVA, the post-test results of the experimental and control groups showed that there was a significant difference between all groups in favor of the 1st experimental group in which peer assessment was applied. The qualitative findings of the study corroborate the quantitative findings. Hence, we can conclude that peer and self-assessment practices were effective both in the development of students' writing skills and on their attitudes and interests towards writing
Driver social desirability scale: A Turkish adaptation and examination in the driving context
No full textSelf-report data collection methods are widely used techniques to gather information in studies related to road safety. One of the most considerable limitations of self-reports is social desirability bias. One way to overcome the possible detrimental effects of socially desirable responding is to control it by using social desirability scales. With respect to that, the present study aims to adapt the Driver Social Desirability Scale into Turkish, examine its construct validity, and investigate the relationship between social desirability and driving-related measures. A total of 351 drivers between the ages of 19 and 59 completed a questionnaire including a demographic information form, the Driver Behavior Questionnaire (DBQ), the Driver Skill Inventory (DSI), the Two-Dimensional Social Desirability Scale (SDS), and the Driver Social Desirability Scale (DSDS). Factor analysis supported the two-factor structure of the DSDS in the Turkish sample. Social desirability correlated positively with age and driving experience. Female drivers reported higher levels of driver impression management, while male drivers scored higher on self-deception. Driver impression management was associated negatively with violations and perceptual-motor skills and positively with safety skills. Lastly, driver self-deception was positively related to violations, positive driver behaviors, perceptual-motor skills, and safety skills. The study shows that the Turkish version of the DSDS is a reliable and structurally valid instrument with incremental validity compared to the general social desirability measure in predicting driving-related outcomes. © 2021 Elsevier Lt
COVID-19: vaccination vs. hospitalization
No full textObjective Vaccination is the most efficient way to control the coronavirus disease 2019 (COVID-19) pandemic, but vaccination rates remain below the target level in most countries. This multicenter study aimed to evaluate the vaccination status of hospitalized patients and compare two different booster vaccine protocols. Setting Inoculation in Turkey began in mid-January 2021. Sinovac was the only available vaccine until April 2021, when BioNTech was added. At the beginning of July 2021, the government offered a third booster dose to healthcare workers and people aged > 50 years who had received the two doses of Sinovac. Of the participants who received a booster, most chose BioNTech as the third dose. Methods We collected data from 25 hospitals in 16 cities. Patients hospitalized between August 1 and 10, 2021, were included and categorized into eight groups according to their vaccination status. Results We identified 1401 patients, of which 529 (37.7%) were admitted to intensive care units. Nearly half (47.8%) of the patients were not vaccinated, and those with two doses of Sinovac formed the second largest group (32.9%). Hospitalizations were lower in the group which received 2 doses of Sinovac and a booster dose of BioNTech than in the group which received 3 doses of Sinovac. Conclusion Effective vaccinations decreased COVID-19-related hospitalizations. The efficacy after two doses of Sinovac may decrease over time; however, it may be enhanced by adding a booster dose. Moreover, unvaccinated patients may be persuaded to undergo vaccination