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Turkish Validity and Reliability of the Smartphone Overuse Screening Questionnaire
Get PDFThis study aims to examine Turkish validity and reliability of the Smartphone Overuse Screening Questionnaire. The study group consisted of 400 students enrolled in different departments of a public university. The Smartphone Addiction Scale-Short Version and the Young’s Internet Addiction Test-Short Form were used for criterion validity. For the internal consistency of the scale, the Cronbach’s alpha was calculated. Five items were removed from the questionnaire due to high covariance error in the items loaded into different factors. The new 23-item scale consisted of 6 factors with acceptable goodness-of-fit values. (?2/df = 2.83, root mean square error of approximation = 0.06, Comparative Fit Index = 0.90, Goodness of Fit Index = 0.87, Incremental Fit Index = 0.90). For the total score of the scale, the Cronbach’s alpha was 0.93 and test– retest reliability coefficient was .79. (p < .001). The total item correlation was found to be between .386 and .768. The Turkish Smartphone Overuse Screening Questionnaire showed a positive correlation with both the Young’s Internet Addiction Test-Short Form and the Smartphone Addiction Scale-Short Version. The results indicate that the Smartphone Overuse Screening Questionnaire can be used as a valid and reliable scale by both researchers and practitioners while examining problematic smartphone use
COVID-19 disease diagnosis from paper-based ECG trace image data using a novel convolutional neural network model
No full textClinical reports show that COVID-19 disease has impacts on the cardiovascular system in addition to the respiratory system. Available COVID-19 diagnostic methods have been shown to have limitations. In addition to current diagnostic methods such as low-sensitivity standard RT-PCR tests and expensive medical imaging devices, the development of alternative methods for the diagnosis of COVID-19 disease would be benefcial for control of the COVID-19 pandemic. Further, it is important to quickly and accurately detect abnormalities caused by COVID-19 on the cardiovascular system via ECG. In this study, the diagnosis of COVID-19 disease is proposed using a novel deep Convolutional Neural Network model by using only ECG trace images created from ECG signals of COVID-19 infected patients based on the abnormalities caused by the COVID-19 virus on the cardiovascular system. An overall classifcation accuracy of 98.57%, 93.20%, 96.74% and AUC value of 0.9966, 0.9771, 0.9905 is achieved for COVID-19 vs. Normal, COVID-19 vs. Abnormal Heartbeats, COVID-19 vs. Myocardial Infarction binary classifcation tasks, respectively. In addition, an overall classifcation accuracy of 86.55% and 83.05% is achieved for COVID-19 vs. Abnormal Heartbeats vs. Myocardial Infarction and Normal vs. COVID-19 vs. Abnormal Heartbeats vs. Myocardial Infarction multi-classifcation tasks. This study is believed to have great potential to speed up the diagnosis and treatment of COVID-19 patients, saving clinicians time and facilitating the control of the pandemic
Comparison of obstetric and neonatal outcomes between Syrian adolescent refugees and local Turkish adolescent citizens
No full textThe provision of antenatal care in adolescents in refugee populations presents particular difficulties because of conflict, nutritional deficiencies, language barriers and lack of access to health care facilities. Due to the absence of prenatal care, associated medical complications can occur. A total of 525 adolescent women who gave birth to singletons agreed to participate in this study. Data about maternal demographic and obstetric characteristics, as well as neonatal outcomes were analysed. In conclusion, adolescent pregnancy continues to be an important social problem due to health support needs. However, the results of our present study are important in terms of showing that perinatal care is quietly improving in Turkey. • What is already known on this subject? Adolescent pregnancies are at much higher risk than adult pregnancies in terms of complications. These complications include preterm delivery, intrauterine growth retardation, maternal morbidity and mortality, neonatal morbidity and mortality. According to various beliefs and traditions, marriages in early ages are observed in some societies and as a result, adolescents become pregnant. Additionally, the present study includes early adolescent aged pregnancies as 14,15 and 16. As far as we search in the literature, there is no reported about early adolescent pregnancies. • What do the results of this study add? Often, such pregnancies occur more frequently in societies with low socioeconomic levels. For this reason routine pregnancy screening, support during pregnancy, prenatal care is not adequately provided. Some of the complications develop on them. Primarily, the adolescent pregnancies should be gotten under control, if not, some complications can be prevented by routine pregnancy follow-up and adequate provision of prenatal care and support. • What are the implications of these findings for clinical practice and/or further research? As a guide on clinical practices and further studies; an effective method of contraception should be applied to sexually active women at early maternal age. If not, pregnancies should be kept under close follow-up and with adequate support to avoid complications
Assessment Of Tp-E Interval, Tp-E/Qt, Tp-E/Qtc Ratıos In Thalassemıa Major Patıents
Get PDFAim: Thalassemia major (TM) is a genetic hemoglobinopathy that causes chronic hemolytic anemia. Repeated blood transfusions are needed for treatment. Iron accumulation is used to predict the risk of ventricular arrhythmia. We designed this study to compare the Tp-e interval, Tp-e/QT ratio and Tp-e/QTc ratio, which are the novel and reliable predictors that show ventricular repolarization, between the TM patients and healthy control group. Method: We included 97 TM patients who presented to our outpatient clinic for routine cardiac check-up from March 2019 to June 2020 and 90 healthy volunteers. In addition to the demographic and echocardiographic findings, patients’ electrocardiograms (ECG) were retrospectively analyzed. Their serum ferritin, C reactive protein (CRP) levels and neutrophil to lymphocyte ratios were recorded and compared. Result: The Tp-e interval was 80 msn (60.0-80.0) in the group of thalassemia major patients whereas it was 60 msn (50.0-70.0) (p<0.001) in the control group. The Tp-e/ QT ratio was 0.200 (0.160-0.225) in the TM group while it was 0.175(0.150-0.210) in the control group (p=0.014). The Tp-e/QTc ratio was 0.180 (0.130-0.190) in the TM group while it was 0.150 (0.130-0.180) in the control group (p=0.035). No correlation was found between their serum ferritin levels and ECG parameters. Conclusion: Prolonged Tp-e interval, Tp-e/QT ve Tp-e/QTc ratios on the ECG in TM patients are associated with impaired ventricular repolarization due to excessive cardiac iron deposition and ventricular arrhythmias. These simple but reliable parameters can be used to predict the risk of arrhythmi
The effect of green human resources management practices in organizations on organizational sustainability
Get PDFSon zamanlarda yaşanmakta olan iklim değişikliği, doğal afetler, salgın hastalıklar ve doğal kaynakların tükenmesi gibi gelişmeler, gezegenin geleceği adına derin soru işaretleri yaratmaya başlamıştır. Ortaya çıkan bu karamsar tablo, işletmelerin çevreci politikalar izlemesini zorunlu kılmaktadır. İşletmelerin karbon ayak izinin azaltılmasında insan kaynakları birimlerine büyük görevler düşmektedir. Bu çalışmada işletmelerdeki yeşil insan kaynakları yönetimi uygulamalarının örgütsel sürdürülebilirlik üzerindeki etkisi araştırılmış ve gerek yerli gerekse yabancı kaynaklar arasında çok az çalışma bulunan "yeşil insan kaynakları yönetimi" konusunda literatüre katkı sağlanması amaçlanmıştır. Araştırma sırasında nicel veri toplama yöntemlerinden biri olan anket yöntemi kullanılmıştır. Alanya Alaaddin Keykubat Üniversitesi Lisansüstü Eğitim Enstitüsü'nden alınan izin doğrultusunda 6 Ağustos-4 Ekim 2021 tarihleri arasında bölge ayrımı yapılmaksızın Türkiye'de özel sektörde çalışmakta olan 402 insan kaynakları profesyoneline telefon ve e-mail yoluyla anket formları ulaştırılmıştır. Anket sonucunda elde edilen verilere uygulanan analizler sonrasında öncelikli olarak İK çalışanlarının demografik özelliklerinin yeşil insan kaynakları yönetimi ve örgütsel sürdürülebilirlik boyutları üzerindeki etkileri araştırılmıştır. Daha sonra, yeşil insan kaynakları yönetimi ve örgütsel sürdürülebilirlik boyutları arasındaki ilişkiler incelenmiştir. Firmanın bulunduğu sektör ve çalışılan firmadaki pozisyon gibi değişkenlere göre yeşil insan kaynakları yönetimi ve örgütsel sürdürülebilirlik boyutlarında incelenen değişkenlerde istatistiksel farklılıkların olduğu sonucuna ulaşılmıştır. Ayrıca yeşil insan kaynakları yönetim biçimiyle örgütsel sürdürülebilirlik boyutları arasında genel anlamda güçlü ilişkilerin varlığı tespit edilmiştir.Recent developments such as climate change, natural disasters, epidemics, and depletion of natural resources have begun to create deep question marks for the future of the planet. This pessimistic picture that has emerged obliges businesses to follow environmental policies. Human resources units have a great role to play in reducing the carbon footprint of businesses. In this study, the effect of green human resources management practices in businesses on organizational sustainability was investigated, and it was aimed to contribute to the literature on "green human resources management", which has very few studies among both domestic and foreign resources. During the research, the survey method, which is one of the quantitative data collection methods, was used. In line with the permission obtained from Alanya Alaaddin Keykubat University Graduate Education Institute, questionnaires were sent to 402 human resources professionals working in the private sector in Turkey, via telephone and e-mail, between August 6 and October 4, 2021, regardless of region. After the analysis of survey data, the effects of demographic characteristics of HR employees on the dimensions of green human resources management and organizational sustainability were investigated. Then, the relationships between green human resource management and organizational sustainability dimensions were examined. It has been concluded that there are statistical differences in the variables examined in the dimensions of green human resources management and organizational sustainability according to variables such as the sector in which the firm is located and the position in the firm. In addition, it has been determined that there are strong relations in general between the green human resources management style and organizational sustainability dimension
Efficiency of resveratrol in the prevention and treatment of age-related hearing loss
No full textAge?related hearing loss (ARHL) is a major public health concern, which is characterized by gradual, progres? sive sensorineural hearing loss and deterioration of sound localization, with no effective treatment available to date. The aim of the present study was to evaluate the efficacy of resve? ratrol to prevent and treat ARHL. For this purpose, 32 male C57BL/6 mice were assigned to four groups: Early treatment, late treatment, control and sham control. The experiment lasted for 15 months. Treatment was started at three months of age in the early treatment group and at sixth months in the late treatment group. The auditory brainstem response test was performed once every three months. At the end of the study period, inducible nitric oxide synthase (iNOS), cyclooxygenase (COX)?2, NF??B, Bcl?2, Bcl?xL, Bax, Bcl?2 homologous antagonist/killer (Bak), caspase?3 and caspase?9 levels in the cochlear tissues of the animals were analyzed by reverse transcription?quantitative PCR. Hearing thresholds of the mice in the early treatment group were better than those in the other groups (P0.05), although mean thresholds were lower. The threshold shift in the early treatment group was significantly lower at all frequencies when compared with those in the control groups (P<0.001). The mRNA expression levels of pro?apoptotic genes Bax and Bak were lower (P<0.05), anti?apoptotic genes Bcl?2 and Bcl?xL were higher (P<0.05), NF??B, COX?2 and iNOS as genes that have a role in inflammation and caspase?3 and caspase?9 as genes with a vital role in apoptosis were lower (P<0.05) in the early treatment group when compared with the late treatment and control groups. These results suggested that resveratrol is effective in the prevention of ARHL, particularly when started prior to the beginning of hearing loss
Uzaktan Eğitim Sürecinde Matematik Öğretmenlerinin Tükenmişlik Düzeylerinin Demografik ve Mesleki Özelliklere Göre Değerlendirilmesi
Get PDFCovid-19 salgını sonucu gerçekleşen zorunlu uzaktan eğitim öğrencilerin aktif olarak katılamıyor olması, velilerin derse olan müdahaleleri, öğrencilerin ders esnasındaki rahat davranışları, erişimde yaşanan sorunlar, motivasyon eksikliği ve yüz yüze olmamadan kaynaklı yaşanan sınıf yönetimi sorunları gibi olumsuz sonuçları da beraberinde getirmiştir. Bu olumsuzluklar dikkate alındığında çalışmanın temel amacı uzaktan eğitim sürecinde matematik öğretmenlerinin tükenmişlik düzeylerini belirlemektir. Daha özelde matematik öğretmenlerinin tükenmişlik düzeylerinin cinsiyet, yaş, çalıştığı kurum, meslekteki kıdem, meslekten aldıkları manevi doyum, yönetim desteği ve meslektaşlarının onay ve desteği değişkenlerine göre değişip değişmediği incelenecektir. Çalışmada tarama modeli kullanılacaktır. Çalışma için gerekli olan veriler Maslach Tükenmişlik Ölçeği ile uygun örnekleme yöntemine göre ulaşılan matematik öğretmenlerinden çevrimiçi ortamdaki anket ile toplanacaktır. Bu çalışmada uzaktan eğitim sürecinde matematik öğretmenlerinin yüksek düzeyde duygusal tükenme, düşük düzeyde duyarsızlaşma ve düşük düzeyde kişisel başarı yaşadıkları görülmektedir. Çalışmadan elde edilecek bulgulara göre uzaktan eğitim sürecini daha verimli geçirebilmek adına matematik öğretmenlerine ve öğretmen adaylarına önerilerde bulunulacaktır
BİST100-Enerji Sektörü Finansal Performansı: SWARA-VIKOR ve SWARA-WASPAS
Get PDFFaaliyetlerin sürdürülebilirliği ve karlılık algısı işletmeler arasında rekabet ve performans kavramlarını ön plana çıkarırken yüksek maliyetli yatırımlar gelecek dönemlerde belirsizlikler yaratarak risk faktörü oluşturduğundan işletmelerin finansal sağlamlığının sürdürülebilirliği önemli olmaktadır. Enerji sektörüne yapılan yatırımlar karlı olsa bile, yatırım maliyetinin yüksek olması sektör için temel risk faktörü oluştururken risk faktörünün ortadan kaldırması ve yatırımların karlı hale dönüşmesi için sektördeki firmaların hem üretim faaliyetlerini geliştirmeleri hem de finansal alt yapılarını güçlendirmeleri gerekmektedir. Finansal performanslara ilişkin risklerin etkilerinin azaltılması için de performans ölçümleriyle gelişim ve değişim içinde olan ihtiyaçlar belirlenerek işletmelerin sürdürülebilirliği sağlanmaktadır. Çalışma kapsamında, Borsa İstanbul (BIST) elektrik, gaz ve buhar sektörlerinde faaliyet gösteren firmaların finansal performansları çok kriterli karar verme yöntemleri (ÇKKV) arasında yer alan SWARA ile ağırlıklandırılarak VIKOR ve WASPAS yöntemleriyle incelenmektedir. İnceleme kapsamında, firmaların gelecek dönemlerde göz önüne alması gereken önlemlerin belirlenmesine katkı sağlaması amaçlanmaktadır. Elde edilen SWARA sonuçlarına göre en yüksek ağırlığa sahip kriter aktif devir hızı olduğu belirlenirken WASPAS ve VIKOR yöntemlerine göre de ENJSA işletmesinin en iyi finansal performans sıralamasına sahip olduğu tespit edilmektedir
Girişimcilik Eğilimlerini Etkileyen Faktörler Üzerine Bir Araştırma
Get PDFBu araştırmanın temel amacı, otantik liderlik, girişimcilik eğilimleri ve özyeterlilik algısı arasındaki ilişkileri tespit ederek etki düzeyine göre alandaki yazınlara katkıda bulunmaktır. Literatür taraması sonucunda bu değişkenlere yönelik sınırlı sayıda çalışmaların olması, bu çalışmayı önemli kılan bir faktör olmuştur. Çalışmada nicel araştırma yöntemi kullanılmıştır. Veriler anket yolu ile elde edilmiştir. Araştırma anketi Antalya ilinin Kemer ilçesinde faaliyet gösteren 2 dört yıldızlı ve 1 beş yıldızlı mavi yakalı otel çalışanlarına uygulanmıştır. Araştırmanın evrenini 240, örneklemini 130 çalışan kapsamaktadır. Konuya ilişkin hipotezler geliştirilmiş ve hipotezleri test etmek için korelasyon, çoklu regresyon testi analizleri uygulanmıştır. Hipotez testleri sonucu değişkenler arasındaki olumlu ilişkilerin olduğu belirlenmiştir ve hipotezler kabul edilmiştir
Chasing Volatility of USD/TRY Foreign Exchange Rate: The Comparison of CARR, EWMA, and GARCH Models
Get PDFThis paper aims to make a comparison between range-based and return-based volatility models. For this purpose, we compare the Conditional Autoregressive Range (CARR) type and Generalized Autoregressive Conditional Heteroskedastic (GARCH) type models with different innovation distributions and the Exponential Weighted Moving Average (EWMA) model with fixed and estimated lambda parameters. The out-of-sample forecasts obtained from the volatility processes are compared according to the Root Mean Square Error (RMSE), Mean Absolute Error (MAE), Heteroskedastic Root Mean Square Error (HRMSE), and Heteroskedastic Mean Absolute Error (HMAE) statistics. We use the USD-TRY exchange rate data for real-life applications since estimating the volatility of forex helps to determine prices for goods and services to avoid the uncertainty created by exchange rate shocks in developing countries such as Turkiye. Although MAE and RMSE show Gumbel CARR and Weibull CARR have the minimum error statistics, respectively, the HMAE and HRMSE statistics indicate that among the range-based models, the EWMA model, in which the lambda parameter is estimated, performs better. Furthermore, we find that Exponential CARR according to RMSE and MAE statistics, and Weibull CARR according to HMAE and HRMSE statistics appear as the return-based volatility models with minimum error