77 research outputs found
Understanding college student’s motivation for physical activity participation: The role of gender, sport type and activity level
The present study aimed to investigate the motivational factors which has an influence on college students’ participation in recreational physical activities. In this sense, gender, sport type (team or/and individual sport) and level of physical activity (MET scores) differences within motivational dimensions were examined. In the frame of the current study, a convenience sampling strategy was utilized. 383 Middle East Technical University students (Mage= 21.42, SD=3.30) voluntarily participated to this study. Data were gathered with an instrument composing of three sections; a demographic information part, a self-report instrument for measuring physical activity, and Physical Activity and Leisure Motivation Scale (PALMS). Physical condition was found to be the most important participation motive, On the other hand, others expectations motive was the least important physical activity participation motive for Turkish college students. When physical activity participation motivations were compared with regard to gender, there was not any significant difference except for the appearance motivation. Females rated appearance motive lower than males for engaging in physical activity. However, significant sport type and level of physical activity differences were found. One-way MANOVA results revealed that team sport participants had significantly higher other’s expectations motivation with compared to individual sport participants. With respect to activity level difference, higher physically active participants have higher motivations and there were significant differences in competition, mastery and enjoyment motivations among medium and vigorous level physical activity participants. The knowledge of the most significant motives for physical activity participation according to variations of the individuals can help practitioners to lead individuals to activities that best suit them and that best motivate them which is very important to start and continue to any physical activity.// // // /
Validity and Reliability Evidence of Professional Obsolescence Scale According to Different Test Theories
This study aims to develop a scale that will determine the factors causing professional obsolescence in the field of education. In this context, the Professional Obsolescence Scale (POS) has been developed to determine the professional and organizational obsolescence of primary, secondary and high school administrators. In this scale development process, steps were followed in line with the suggestions of Crocker and Algina (2006) and Cronbach (1984). Firstly, 63 items were prepared and 991 school principals participated the study. R (version 4.0.1) software was used to analyze the data. Item and test parameters and information functions have been estimated using Samejima's Graded Response Model based on Item Response Theory. Principal Axis Analysis was performed for the construct validity of the scale, and four-dimensions structure with 47 items has been obtained. These dimensions are named as "Being Open to Professional Development", "Job-Ability Harmony in Profession", "Organizational Support in Professional Development", "Professional Burnout". The scores obtained from each dimension are evaluated within themselves. It has been observed that each dimension fulfills the conditions of unidimensionality, local independence, model-data fit and parameter invariance. According to the Classical Test Theory, Cronbach Alpha coefficients are between 0.807 and 0.945. The Stratified Alpha coefficient calculated for the whole scale is 0.94. According to the Item Response Theory, the marginal reliability coefficients were between 0.857 and 0.936 and the empirical reliability coefficients were found between 0.854 and 0.938
Otonom Araçla Genetik Algoritma Kullanılarak Haritalama ve Lokasyon
Teknolojik gelişmeler ve bu zamana
kadar biriken bilgilerin ışığında otonom sistemlerde muazzam bir ilerleme kaydedilmiştir.
Bu sayede otonom sistemler çarpışmadan kaçınma, trafik işareti tespiti,
haritalama vb. sayısız akıllı işlevleri gerçekleştirebilmektedir. Gerçek
zamanlı otonom araçların en zorlu problemi aracın kendi kendine haritalandırma
ve lokasyon işlemlerini yapabilmesidir. Genetik Algoritma (GA) kullanarak optimize
edilmiş lokasyon uygulaması ile otonom araçlar için sürüş güvenliğinin artması
beklenmektedir. Bu çalışmada lazer tabanlı bir lokalizasyon ve haritalama
tekniğinin üzerine odaklanılmıştır. Gerçekleştirilen sistemde sanal bir test ortamı
kurulmuş ve bir otonom araç üzerinde denemeler yapılmıştır. Çalışma kapsamında
sanal makineler oluşturularak üzerlerine Linux işletim sistemi kurulmuştur.
Sonra bu sanal makinelere ROS ortamında TurtleBot3 kurulmuş ve iç mekân
lokalizasyonu yapılarak bir harita elde edilmiştir. Bu harita genetik algoritma
ile en kısa mesafelerin bulunmasını sağlamak için kullanılmaktadır. Gözlemler
neticesinde simülasyon ortamındaki robot yüksek başarımla istenilen konuma
gidebildiği sonucuna ulaşılmıştır
Pressure-Spun Fibrous Surgical Sutures for Localized Antibacterial Delivery: Development, Characterization, and In Vitro Evaluation
Surgical sutures designed to prevent infection are critical in addressing antibiotic-resistant pathogens that cause surgical site infections. Instead of antibiotics, alternative materials such as biocides have been assessed for coating commercially used sutures due to emerging antibiotic resistance concerns worldwide. This study has a new approach to the development of fibrous surgical sutures with the ability to deliver localized antibacterial agents. A new manufacturing process based on pressure spinning was used for the first time in the production of fibrous surgical sutures by physically blending antibacterial triclosan (Tri) agent with poly(lactic-co-glycolic acid) (PLGA) and poly(ethylene oxide) (PEO) polymers. Fibrous surgical sutures with virgin PLGA, virgin PEO, different ratios of PLGA-PEO, and different ratios of Tri-loaded PLGA-PEO fibrous sutures were produced to mimic the FDA- and NICE-approved PLGA-based sutures available in the market and compared for their characteristics. They were also tested simultaneously with commercially available sutures to compare their in vitro biodegradation, antibacterial, drug release, and cytotoxicity properties. After in vitro antibacterial testing for 24 h, sutures having 285 ± 12 μg/mg Tri loading were selected as a model for further testing as they exhibited antibacterial activity against all tested bacteria strains. The selected model of antibacterial fibrous sutures exhibited an initial burst of Tri release within 24 h, followed by a sustained release for the remaining time until the sutures completely degraded within 21 days. The cell viability assay showed that these surgical sutures had no cytotoxic effect on mammalian cells
Erken çocukluk eğitimi öğretmen ve yöneticilerinin Covid-19 pandemi deneyimleri: Yorumlayıcı fenomenolojik analiz
This study aimed to examine the distance education experiences of early childhood education teachers and administrators during the COVID-19 pandemic period. The participants of the study consisted of 32 preschool teachers and eight school principals. A qualitative phenomenological design was used as a research method and the data was collected through online interview forms and semi-structured phone interviews. Interpretative phenomenological analysis was used to analyze interview data. According to the findings, the participants experienced the pandemic in the form of contrasting emotions replaced by "relaxation-excessive anxiety". The research results showed that some of the participants put forward three different visions in the context of the sustainability of distance education: using it as support for formal education, enriching distance education platforms in terms of access and content, improving teachers' technology and distance education competencies.Bu araştırmanın amacı erken çocukluk eğitimi öğretmenlerinin ve yöneticilerinin COVID-19 pandemi dönemindeki uzaktan eğitim deneyimlerini ortaya çıkarmaktır. Araştırmanın katılımcıları 32 okulöncesi öğretmeni ve sekiz yöneticiden oluşturmaktadır. Araştırmada nitel araştırma yöntemlerinden fenomenolojik desen kullanılmıştır. Veriler yarı yapılandırılmış çevrim içi görüşme formu ve telefon görüşmesi ile elde edilmiş ve yorumlayıcı fenomenolojik analiz ile çözümlenmiştir. Bulgular pandemi algısı, bu süreçte öğretmen ve yönetici olmak ve uzaktan eğitim vizyonu adlı temalar çerçevesinde sunulmuştur. Bu çalışmadan elde edilen bulgulara göre, katılımcılar pandemiyi “rahatlama-aşırı kaygı” şeklinde birbiriyle yer değiştiren zıt duygular şeklinde deneyimlemişlerdir. Katılımcı öğretmenlerin pandemi sürecinde uzaktan eğitimi çoğunlukla hazır planlar kullanarak yürüttükleri anlaşılmaktadır. Araştırma sonuçları bazı katılımcıların uzaktan eğitimin sürdürülebilirliği bağlamında örgün eğitime destek olarak kullanılması, uzaktan eğitim platformlarının erişim ve içerik açısından zenginleştirilmesi, öğretmenlerin teknoloji becerilerinin geliştirilmesi ve uzaktan eğitim yeterlikleri şeklinde üç farklı vizyon ortaya koyduklarını göstermektedir
Diagnosis of comorbid migraine without aura in patients with idiopathic/genetic epilepsy based on the gray zone approach to the International Classification of Headache Disorders 3 criteria
BackgroundMigraine without aura (MwoA) is a very frequent and remarkable comorbidity in patients with idiopathic/genetic epilepsy (I/GE). Frequently in clinical practice, diagnosis of MwoA may be challenging despite the guidance of current diagnostic criteria of the International Classification of Headache Disorders 3 (ICHD-3). In this study, we aimed to disclose the diagnostic gaps in the diagnosis of comorbid MwoA, using a zone concept, in patients with I/GEs with headaches who were diagnosed by an experienced headache expert.MethodsIn this multicenter study including 809 consecutive patients with a diagnosis of I/GE with or without headache, 163 patients who were diagnosed by an experienced headache expert as having a comorbid MwoA were reevaluated. Eligible patients were divided into three subgroups, namely, full diagnosis, zone I, and zone II according to their status of fulfilling the ICHD-3 criteria. A Classification and Regression Tree (CART) analysis was performed to bring out the meaningful predictors when evaluating patients with I/GEs for MwoA comorbidity, using the variables that were significant in the univariate analysis.ResultsLonger headache duration (<4 h) followed by throbbing pain, higher visual analog scale (VAS) scores, increase of pain by physical activity, nausea/vomiting, and photophobia and/or phonophobia are the main distinguishing clinical characteristics of comorbid MwoA in patients with I/GE, for being classified in the full diagnosis group. Despite being not a part of the main ICHD-3 criteria, the presence of associated symptoms mainly osmophobia and also vertigo/dizziness had the distinguishing capability of being classified into zone subgroups. The most common epilepsy syndromes fulfilling full diagnosis criteria (n = 62) in the CART analysis were 48.39% Juvenile myoclonic epilepsy followed by 25.81% epilepsy with generalized tonic-clonic seizures alone.ConclusionLonger headache duration, throbbing pain, increase of pain by physical activity, photophobia and/or phonophobia, presence of vertigo/dizziness, osmophobia, and higher VAS scores are the main supportive associated factors when applying the ICHD-3 criteria for the comorbid MwoA diagnosis in patients with I/GEs. Evaluating these characteristics could be helpful to close the diagnostic gaps in everyday clinical practice and fasten the diagnostic process of comorbid MwoA in patients with I/GEs
Reducing the environmental impact of surgery on a global scale: systematic review and co-prioritization with healthcare workers in 132 countries
Abstract
Background
Healthcare cannot achieve net-zero carbon without addressing operating theatres. The aim of this study was to prioritize feasible interventions to reduce the environmental impact of operating theatres.
Methods
This study adopted a four-phase Delphi consensus co-prioritization methodology. In phase 1, a systematic review of published interventions and global consultation of perioperative healthcare professionals were used to longlist interventions. In phase 2, iterative thematic analysis consolidated comparable interventions into a shortlist. In phase 3, the shortlist was co-prioritized based on patient and clinician views on acceptability, feasibility, and safety. In phase 4, ranked lists of interventions were presented by their relevance to high-income countries and low–middle-income countries.
Results
In phase 1, 43 interventions were identified, which had low uptake in practice according to 3042 professionals globally. In phase 2, a shortlist of 15 intervention domains was generated. In phase 3, interventions were deemed acceptable for more than 90 per cent of patients except for reducing general anaesthesia (84 per cent) and re-sterilization of ‘single-use’ consumables (86 per cent). In phase 4, the top three shortlisted interventions for high-income countries were: introducing recycling; reducing use of anaesthetic gases; and appropriate clinical waste processing. In phase 4, the top three shortlisted interventions for low–middle-income countries were: introducing reusable surgical devices; reducing use of consumables; and reducing the use of general anaesthesia.
Conclusion
This is a step toward environmentally sustainable operating environments with actionable interventions applicable to both high– and low–middle–income countries
Consumer motivations and concerns for online sport-product marketing
Bu araştırmanın amacı, internetten spor ürünleri alışverişi yapan tüketicileri güdüleyen etmenler ve bu tüketicilerin internetten alışverişlerinde duydukları endişeleri incelemektir. Araştırmanın evrenini Türkiye nin en yaygın ve ilklerinden olan internetalışveriş sitesi hepsiburada.com dan yalnızca spor ürünleri alışverişi yapan yaklaşık 220.000 müşteri oluşturmuştur. Evren seçimi ve dolayısı ile örneklem seçim yöntemi, amaca yönelik (purposive sampling) yöntemdir. Bu evrenden, araştırmaya gönüllü olarak 2716 kişi önceden hazırlanan bir web sitesi aracılığı ile katılmıştır. 2716 kişiden elde edilen veriler incelendiğinde, bazı katılımcıların cevapları geçersiz olduğu saptanmış ve araştırmanın örneklemi 1154 katılımcıdan oluşmuştur (18-65 yaş (x= 32.65, ss= 8.564), % 77.6 (896) sı erkek, % 22.4 (258) i kadın) Veri toplama araçları olarak; Türkiye ye uyarlamaları bu araştırma kapsamında yapılan ve geçerliği ve güvenirliği ispatlanmış olan İSTGÖ ve İSTEÖ kullanılmıştır. 5 alt boyut (alışveriş rahatlığı, bilgi edinme, eğlence, ekonomik etmen, sosyalleşme) ve 45 maddeden oluşan İSTGÖ, 7 li Likert tipindedir ve tüketicilerin internetten spor ürünleri alışverişini güdüleyen etmenleri ölçmektedir. 5 alt boyut (güvenlik ve gizlilik, ürün kalitesi, müşteri hizmetleri, sipariş ve teslim, maliyetler) ve 24 maddeden oluşan İSTEÖ ise, yine 7 Li Likert tipinde olup, tüketicilerin internetten spor ürünleri alışverişinde duydukları endişeleri ölçmektedir. Verilerin analizi için betimleyici istatistik ve Çok Değişkenli Varyans Analizi (MANOVA) analizleri yapılmıştır. Araştırmanın bulgularına göre, internetten spor ürünleri alışverişinde tüketicilerin cinsiyet, eğitim düzeyi, yaş ve medeni durumlarına göre internetten spor ürünleri alışveriş güdülerinde anlamlı farklılıklar vardır. Ancak, internetten spor ürünleri alışverişinde tüketici endişeleri, cinsiyet ve eğitim düzeyi değişkenlerine göre anlamlı farklılıklar gösterirken, yaş ve medeni durum tüketicilerin internetten spor ürünleri alışverişi endişelerinde anlamlı bir farklılık yaratmamaktadır. Araştırma kapsamında ele alınan bağımsız değişkenler bağlamında, internetten spor ürünleri alışverişini güdüleyen unsurları ve bu unsurları iyileştirebilecek uygulamalar ile tüketici endişeleri ve bu endişeleri en az indirgeyebilecek uygulamalar, spor ürünlerini web üzerinden pazarlayan perakendecilere önerilmiştir.The purpose of this study was to investigate online sport consumption motivations and concerns of online shoppers. The universe of the study was 220.000 customers buying only sportrelated products from hepsiburada.com which is the most common and the first online shopping web retailer in Turkey. The universe, and therefore the sample group of the study was purposively selected. 2716 participants were participated voluntarily via a pre-established web site in this study. After the elimination of the incomplete and invalid responses of the participants, a total of 1154 valid questionnaires were included in this study (18-65 years old (x= 32.65, Sd = 8,564), 77.6% (896) man, and 22.4% (258) woman). Data was collected by using Motivation Scale for Online Sport Consumption (MSOSC), and Concern Scale for Online Sport Consumption (CSOSC) which were adapted to the Turkey within this study. Both of the scales were valid and reliable. While the MSOSC has 5 factors (shopping convenience, information, diversion, economic motive, socialization) and 45 items, and measures the motivational factors of online sport-product shoppers, the CSOSC has 5 factors (security and privacy, product quality, customer services, order and delivery, cost) and 24 items, and measures the concerns of online sport-product shoppers. Both scales were a 7-point Likert-type scale. Descriptive statistics and MANOVA were performed to analyze the data. The results showed that there were significant differences in the shopping motivations of online sport-product consumers in terms of their gender, educational level, age and marital status. However, gender and educational level were created significant differences in the shopping concerns of online sport-product consumers; age and marital status were not created any significant differences in the concerns of online sport-product consumers. The improvement of the motivational factors for online shopping and the minimization of the concerns for online shopping in terms of the independent variables were recommended to the web retailers marketing sport products
Parent satisfaction in pediatric cardiovascular surgical intensive care unit: An example From university hospital
Pediatrik kardiyovasküler cerrahi yoğun bakım ünitesinde çocuğu bakım ve tedavi gören ebeveynlerin, memnuniyet düzeylerini belirlemek amacı ile tanımlayıcı tipte planlanan bu araştırma; Temmuz 2018- Nisan 2019 tarihleri arasında, İstanbul'da bir özel hastaneler kompleksinde gerçekleştirildi. Araştırmanın evrenini; Vakıf Hastanesi'nin kardiyovasküler cerrahi yoğun bakım ünitesinde tedavi görmüş olan çocukların ebeveynleri, örneklemini ise ünitede en az 24 saat süre ile kalmış olan tüm çocukların araştırmaya katılmaya gönüllü ebeveynleri oluşturdu (n=87). Veriler; çocuk servisten taburcu olduktan sonra "Ebeveyn Sosyodemografik Veri Formu" ve "Pediatrik Yoğun Bakımda Aile Memnuniyeti Ölçeği" ile toplandı ve SPSS 25.0 istatistik programı ile değerlendirildi. Skalanın Cronbach alfa katsayısı çalışma grubumuz icin .96'dır. Ölçeğin alt boyutlara göre Cronbach alfa katsayıları; çevre memnuniyeti alt boyutunda .65, bakım memnuniyeti alt boyutunda .93, iletişim memnuniyeti alt boyutunda ise .92 olarak bulundu. Araştırma sonucunda; ebeveynlerin memnuniyet düzeylerine ilişkin veriler değerlendirildiğinde, genel ebeveyn memnuniyeti %86,8, yoğun bakım çevresinden memnuniyet %84,4, bakım uygulamalarından memnuniyet %88,2 ve iletişimden memnuniyet düzeyi %86,1 olarak bulundu. Bakım, çevre ve iletişim memnuniyet puan ortalamalarının hem kendi aralarında hem de genel memnuniyet puan ortalaması ile pozitif yönlü çok güçlü ilişki gösterdiği görüldü (p<0,05). Ebeveynlerin memnuniyet puan ortalamaları cinsiyete göre değerlendirildiğinde; kadınların bakım, iletişim ve genel memnuniyetlerinin erkeklere göre anlamlı düzeyde daha yüksek olduğu saptandı (p<0,05). Ebeveynlerin çevre memnuniyeti puan ortalamaları ile çocuğunun yatma süresi arasındaki ilişkin anlamlı düzeyde fark olduğu görüldü (p<0,05). Pediatrik kardiyovasküler cerrahi yoğun bakımda çocuğu 15 günden fazla yatanların çevre memnuniyet düzeyi en yüksek iken, 2 günden az süre yatanların ise en düşük olduğu belirlendi. Araştırma sonucunda ebeveynlerin aldıkları hizmetten ve en fazla bakımdan, en az düzeyde ise bakım çevresinden memnun oldukları saptandı. Sonuçlarımız doğrultusunda; çalışmanın yapıldığı ünitenin çevre koşullarının iyileştirilmesi ve ebeveynlerin en az memnun oldukları durumların düzeltilmesine öncelik verilmesi ile hizmetin kalitesi arttırılabilir.This descriptive study was conducted between July 2018-April 2019, a private hospital complex was held in Istanbul. To determine the level of satisfaction of the parents with the obtained care in pediatric cardiovascular surgery intensive care unit. The universal focus of the research; The parents of the children who were treated in the cardiovascular surgery intensive care unit of the Private Hospital, and the sample of all children who stayed in the unit for at least 24 hours. (n = 87). Data; After the child was discharged from the ward, "Parent Sociodemographic Data Form "and "Family Satisfaction Scale in Pediatric Intensive Care Unit" were distributed then collected and statistical analysis was performend with SPSS 25.0. Cronbach's alpha coefficient of the scale was .96 for our study group. Cronbach's alpha coefficients according to the sub-dimensions of the scale; environmental satisfaction in sub-dimension .65, care satisfaction in sub-dimension .93, and in the decision-making communication satisfaction sub-dimension .92. As a result of the research; When the data on the satisfaction levels of the parents are evaluated; overall parental satisfaction was 86.8%, intensive care environment satisfaction was 84.4%, care applications satisfaction was 88.2% and communication satisfaction level was 86.1%. Relationship was found that care, environment, and communication satisfaction scores averages; It was observed that there was a very strong positive relationship between each of the measured categories and with the overall satisfaction score average (p <0.05). When the average satisfaction scores of the parents were evaluated according to gender; it was found that women's care, communication and general satisfaction were significantly higher than men (p <0.05). There was a significant difference between the mean scores of parental satisfaction from enviroment and the length of stay of the child in unit (p <0.05). In the pediatric cardiovascular surgery intensive care unit, it was determined that those who had been hospitalized for more than 15 days had the highest level of environmental satisfaction, whereas those who had been hospitalized for less than 2 days were found to be the lowest. According to the results of the research in general terms; it was found that the parents were generally satisfied with the service they received and were satisfied with most of the care and least with the care environment. In line with our results; the quality of service can be improved by improving the environmental conditions of the unit where the care is given, and by giving priority to correcting the situations where parents are least satisfied
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