1983 research outputs found
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Knowledge Sharing Self-Efficacy, Motivation and Sense of Community as Predictors of Knowledge Receiving and Giving Behaviors
No full textThis study examines the extent to which knowledge sharing self-efficacy, motivation and sense of community variables predict undergraduate students' knowledge sharing behaviors (knowledge receiving and knowledge giving) in online learning environments. The participants included undergraduate students (N = 284) from two different universities in Turkey. Stepwise multiple regression analyses were carried out to identify the variables predicting knowledge sharing behaviors as knowledge giving and receiving behaviors. The results revealed that both knowledge giving and receiving behaviors were best predicted by knowledge sharing self-efficacy, followed by motivations and sense of community. External effects and growth of aim affected knowledge receiving, whereas only internal effects affected knowledge giving. The independence factor giving
Tourniquet pressure settings based on limb occlusion pressure determination or arterial occlusion pressure estimation in total knee arthroplasty? A prospective, randomized, double blind trial
No full textObjective: The aim of this study was to compare the limb occlusion pressure (LOP) determination and arterial occlusion pressure (AOP) estimation methods for tourniquet pressure setting in adult patients undergoing knee arthroplasty under combined spinal-epidural anesthesia.
Methods: Ninety-three patients were randomized into two groups. Pneumatic tourniquet inflation pressures were adjusted based either on LOP determination or AOP estimation in Group 1 (46 patients, 38 female and 8 male; mean age: 67.71 +/- 9.17) and Group 2 (47 patients, 40 female and 7 male; mean age: 70.31 +/- 8.27), respectively. Initial and maximal systolic blood pressures, LOP/AOP levels, required time to estimate AOP/determinate LOP and set the cuff pressure, initial and maximal tourniquet pressures and tourniquet time were recorded. The effectiveness of the tourniquet was assessed by the orthopedic surgeons using a Likert scale.
Results: Initial and maximal systolic blood pressures, determined LOP, estimated AOP, duration of tourniquet and the performance of the tourniquet were not different between groups. However, the initial (182.44 +/- 14.59 mm Hg vs. 200.69 +/- 15.55 mm Hg) and maximal tourniquet pressures (186.91 +/- 12.91 mm Hg vs. 200.69 +/- 15.55 mm Hg) were significantly lower, the time required to estimate AOP and set the tourniquet cuff pressure was significantly less (23.91 +/- 4.77 s vs. 178.81 +/- 25.46 s) in Group II (p = 0.000). No complications that could be related to the tourniquet were observed during or after surgery.
Conclusion: Tourniquet inflation pressure setting based on AOP estimation method provides a bloodless surgical field that is comparable to that of LOP determination method with lower pneumatic inflation pressure and less required time for cuff pressure adjustment in adult patients undergoing total knee arthroplasty under combined spinal epidural anesthesia. (C) 2018 Turkish Association of Orthopaedics and Traumatology. Publishing services by Elsevier B.V
Risk Factors for Fatal Pulmonary Hemorrhage following Concurrent Chemoradiotherapy in Stage 3B/C Squamous-Cell Lung Carcinoma Patients
No full textWe aimed to identify the fatal pulmonary hemorrhage- (FPH-) related risk factors in stage 3B/C squamous-cell lung carcinoma (SqCLC) patients treated with definitive concurrent chemoradiotherapy (C-CRT). Medical records of 505 stage 3B/C SqCLC patients who underwent 66 Gy radiotherapy plus 1-3 cycles of concurrent chemotherapy with available pretreatment thoracic computerized tomography scans were retrospectively analyzed. Primary end-point was the identification of FPH-related risk factors. Examined factors included the basal patient and tumor characteristics with specific emphasis on the tumor cavitation (TC) status, tumor size (TS) and cavitation size (CS), tumor volume and cavitation volume (TV and CV), relative cavitation size (RCS = CS/Ts), and relative cavitation volume (RCV=CV/TV). FPH emerged in 13 (2.6%) patients, with 12 (92.3%) of them being diagnosed 0.14 (37.5% versus 11.1% for RCV 0.14. Diagnosis of >90% FPHs <= 12 months of C-CRT stresses the importance of close and careful follow-tip of high-risk patients after C-CRT for multidisciplinary discussion of possible invasive preventive measures
Humidification therapy; long-term effects in COPD and OSAS patients
No full textHumidification therapy is widely used in patients during invasive ventilation and the importance of heating and humidifying the inhaled air is well defined in both the acute and long term setting. On the other hand the continuous usage of humidification in noninvasive ventilation is controversial and the long term effects are still not well defined. The usage of noninvasive ventilation is especially important in hypercapnic Chronic obstructive pulmonary disease (COPD) and also the obstructive sleep apnea syndrome (OSAS) patients and compliance to this treatment is essential in long term. Limited number of studies have shown that heated humidification is preferred by COPD patients and might help in mucus clearance, reduce mucus viscosity and help in expectoration, but there was shown no priority as far as concerns the lung function or blood gas parameters. Humidification might also be important in long term oxygen treatment since the inhalation of dry air can lead to ciliary dysfunction, alterations in mucus properties and mucociliary clearance impairment. Studies concerning OSAS patients showed that humidification helps to reduce the nasal symptoms but plays no role in increasing the compliance of patients in long term. Multi-center studies with large number of patients are needed to identify patients' groups who are likely to benefit from the addition of humidification to noninvasive therapy
A misleading cutaneous lesion for the surgeon: pyoderma gangrenosum
No full textPyoderma gangrenosum is a rare inflammatory skin disorder characterized by cutaneous papulo-pustules that evolve rapidly into large, painful, necrotic ulcers. These lesions are often initially diagnosed as wound infection and necrotizing fasciitis. Debridement, although the standard of care for wound infections, is paradoxically detrimental in pyoderma gangrenosum because of pathergy. Early diagnosis and treatment of pyoderma gangrenosum is very important because unnecessary debridement and associated morbidity can be prevented. Herein, we report a case with pyoderma gangrenosum mimicking necrotizing fasciitis
The Impact of Motivation and Personality on Academic Performance in Online and Blended Learning Environments
No full textThis study investigates the impact of students' motivation and personality traits on their academic performance in online and blended learning environments. It was conducted with students attending a mandatory introductory information technology course given in a university in Turkey. The Big Five Inventory and Motivated Strategies for Learning Questionnaire were completed by a total of 316 students. A learning management system (LMS) was used for online collaboration and accessing course materials. At the end of the course, information on the accessibility of LMS and students' academic performance including their exam results was obtained. The Bayesian Structural Equation Modeling was used to examine academic performance in terms of its relationship with motivation and personality. In the online learning environment, the results showed that the conscientiousness trait was significantly related to LMS use whereas in blended learning, there were no significant relations between personality traits and LMS use. Self-efficacy was found to be the predictor of LMS use in the online environment while task value and test anxiety were the predictors in the blended learning environment. Conscientiousness and LMS use were significantly related to course grades in both learning environments. Finally, self-efficacy for learning performance was also associated with course grades in the online learning environment
Evdeki yabancı: Ankara'daki gürcü bakıcı kadınların gündelik hayat mücadeleleri ve taktikleri
No full textAnkara'da yaşayan Gürcü bakıcı kadınlar ve işverenleri olan ev sahipleri arasındaki
girift ilişkinin veçhelerini tespit etmek düşüncesiyle gerçekleştirilen bu araştırma
Maduniyet çalışmaları ve gündelik hayat üzerine yazılmış eleştirel kuramdan yararlanır.
Yüz yüze görüşmelerde bulunduğum aracı kurum yetkililerinin, işverenlerin ve
bakıcı kadınların aktarmış oldukları deneyimler sayesinde tespit edilen veriler, Michel de
Certeau'nun taktikler kavramıyla ilişkilendirilerek söylem analizi yöntemiyle
çözümlenmiştir.
Asıl amacı gündelik hayatın dinamizmi içerisindeki sadece belli bir boyuta karşılık
gelen bakıcı kadınların kişisel alan mücadelesi ve buna karşılık ev sahiplerinin yapmış
olduğu alan savunmasının analizi olan bu araştırma, nihai olarak stereotip inşası,
karşılıklılık ilkesi ve taktiksel çıktılarının varlığına ışık tutmuştur.
This research, which is based on the idea of identifying the aspects of the complex
relationship between Georgian female domestic workers who live in Ankara and their
householders who are also their employers, uses the subaltern studies and the critical
theory written on everyday life.
The data acquired thanks to the experiences which were told during the face-to-face
interviews that I conducted with the agency officials, householders-employers and female
domestic workers, were analyzed by the discourse analysis method by associating them
with the concept of tactics of Michel de Certeau.
This research, which aims in the first place to offer an analysis of the personal
space struggle of the female domestic workers corresponding to only a certain dimension
in the dynamism of everyday life and the space defence of the householders in return,
ultimately shed light on the stereotype construction, the principle of reciprocity and the
existence of the tactical outputs
Türkiye'deki sigorta şirketlerinin derecelendirilmesi ve değerlendirilmesi
No full textBu çalışmanın amacı, sektörde mevcut olan sigorta şirketlerinin mevcut verilerini
karşılaştırarak, sektör içindeki yerlerini ve statülerini test etmektir. Yapılan literatür
araştırmalarında bu konuyla ilgili çalışmaya rastlanmamış olup, bu açıdan çalışma
orijinaldir. Öncelikle sektörler kendi aralarında hiyerarşik kümeleme analizine tabi tutulup
her küme farklı bir statüyü gösterecek şekilde (en iyi, iyi, orta, kötü, en kötü) şirketlerin
kümelenmesi sağlanmıştır. Sektörde faaliyet gösteren sigorta şirketlerinin sadece kendi
içinde sıralamanın çok bir anlam ifade etmediği, bunların sektör içindeki statülerinde
sınıflandırılması gerektiğinin önemli olduğu vurgulanmaktadır.
Çalışmanın ilk bölümünde sigortacılığın tarihsel gelişimine göz atılmıştır. Ele alınan yıllar
hakkında genel bir bilgi ile okuyucu bilgilendirilmiştir. Bu bilgiler ile sektörün reel
büyümesi, prim üretimleri ve tazminat ödemeleri ile ilgili bilgiler verilmiştir. Çalışmanın
ikinci bölümü ise yöntem bölümüdür. Bu bölümde şirket derecelendirilmesinde kullanılan
yöntemler ve araştırmanın yönteminden bahsedilmiştir. Üçüncü bölüm olan bulgular
bölümünde, yıllar itibari ile uygulanan analiz sonuçları yorumlanmıştır. Son olarak sonuç
ve öneriler bölümünde, çalışma sonucunda şirketler hakkında varılan karar ve şirketler için
önerilerde bulunulmuştur. Çalışma sonucunda elde edilmek istenen şirketlerin, yılların
değişmesi ile statülerinde bir değişiklik gösterip göstermediğinin gözlemlenmesidir.
The purpose of this study is to compare the current data of the insurance companies in the
sector and to test their position and statutory status within the sector. There is no study on
this subject in the literature studies that have been made, and in this respect the study is
original. Firstly, the sectors are subject to a hierarchical clustering analysis among
themselves and a cluster of companies is provided (best, good, medium, bad, worst) so that
each cluster will show a different status. It is emphasized that it is important that the
insurance companies operating in the sector do not make much sense to sort within
themselves and that they should be classified in the rating within the sector.
In the first part of the study, the historical development of insurance was examined. The
reader was informed with general information about the years covered. In this light of
information, information on real growth of the sector, premium productions and
compensation payments are given. The second part of the work is the method part. The
methods used at the company rating and the method of the research are mentioned. In the
third section, Findings, the results of the analysis applied for years are interpreted. Finally,
in the conclusions and suggestions section, decisions and suggestions were made about the
companies as a result of the study. As a result of the study, is to observe whether the
companies have changed with years of change
Nefesli çalgı çalan sanatçılarda orta kulak fonksiyonlarının değerlendirilmesi
No full textAMAÇ: Bu çalışmanın amacı, nefesli çalgı çalan sanatçılarda normal bireylere göre orta kulak ve östaki tüpü fonksiyonlarının durumunu değerlendirmek ve nefesli çalgının orta kulak resonant frekansındaki etkisini inceleyebilmektir.
GEREÇ ve YÖNTEM: Çalışma, Çukurova Devlet Senfoni orkestrası’nın nefesli çalgı çalan sanatçılardan gönüllü olarak çalışmaya katılan 28 sanatçı (56 kulak) ve kontrol grubu olarak 34 gönüllü (68 kulak) üzerinde gerçekleştirilmiştir. Katılımcıların saf ses odyometri ile konuşma (0.5,1,2 kHz) ve yüksek frekans (4,6,8 kHz) saf ses ortalama eşikleri, 226 Hz alçak prob tone immitansmetrede timpanometrik tepe basıncı (TPP), timpanometrik gradient (TG), statik komplians, akustik refleks ve otomatik olarak östaki fonksiyon testi ile östaki tüpü patent durumuna bakılmıştır. Tüm katılımcılara multifrekans timpanometri yapılarak rözanant frekansı ( RF) değerleri elde edilmiş; çalışma grubunun performans öncesi ve sonrası RF değerleri ayrıca kaydedilmiştir.
BULGULAR: Çalışma grubunda yüksek frekans saf ses ortalamaları anlamlı olarak yüksek bulunmuş ve akustik refleksin alınamaması daha sık olarak gözlenmiş ve anlamlı bulunmuştur (p=0.005). TPP ve TG ortanca değerleri için çalışma grubunda istatistiksel olarak anlamlı bir şekilde farklılık vardır (p=0.000, p=0.031). Östaki tüpünün patent olma durumu açısından gruplarda tüm kulaklar değerlendirildiğinde istatistiksel olarak çalışma grubunda fark gözlenmiştir (p=0.048). Tahta üflemeli çalgı çalan sanatçılarda östaki disfonksiyonu bakır üflemeli sanatçılara ve kontrol grubuna göre istatistiksel olarak anlamlı bir şekilde daha fazla görülmüştür (p=0.029). Çalışma grubunda tüm kulakların performans öncesi RF ortalama değeri 925 Hz (SD±237,6); performans sonrası RF 1020 Hz (SD±249,6) olarak hesaplanmıştır. Performans öncesi ve sonrası elde edilen RF ortalama değerleri arasında anlamlı bir fark bulunmuştur (p=0.004). Bu farkın tahta üflemeli çalgı çalanlarda daha belirgin olduğu tespit edilmiştir.
RF değerleri açısından çalışma ve kontrol grubu karşılaştırıldığında; çalışma grubunda sağ kulak RF değeri 998,92 Hz (SD254,05), sol kulakta ise 1041,07 Hz (SD247,97); kontrol grubunda sağda; 906,42 Hz (SD175,10) ve solda 863,21 Hz (SD 139,28) olup, sol kulak açısından iki grup arasında istatistiksel olarak fark bulunmuştur (p=0.03).
SONUÇ: Bu çalışma, orkestrada nefesli çalgı çalan sanatçıların orta kulak fonksiyonlarını inceleyen ilk çalışma özelliğine sahiptir. Nefesli çalgı çalan sanatçılarda orta kulak fonksiyonları değerlendirilmiş; östaki disfonksiyonunun daha belirgin olduğu ve rösanant frekansının performans öncesine ve kontrol grubuna göre daha yüksek elde edildiği gözlenmiştir. Bu farklılığın çok daha fazla belirgin olduğu tahta üflemeli çalgı çalan sanatçılar için birtakım koruyucu tedbirler geliştirilmelidir. Bu çalışma, daha geniş bir seride, multifrekans timpanometrinin niteleyici komponentlerini içeren ve sonotubometri gibi geçerliliği yüksek bir östaki fonksiyon testinin kullanılacağı bir çalışmanın ön çalışmasıdır.
AIM: The purpose of this study is to evaluate the state of the middle ear and the Eustachian tube functions according to normal individuals, and to be able to examine the effect of wind instrument on the resonant frequency of the middle ear.
MATERIAL AND METHODS: The study was carried out on 28 volunteers (56 ears) of wind instruments performers from Çukurova State Symphony Orchestra as a study group and 34 volunteers (68 ears) as a control group. Pure tone audiometry of the participants' were obtained and conversation (0.5, 1, 2 kHz) and high frequency (4,6,8 kHz) pure tone mean thresholds were noted. Tympanometric peak pressure (TPP) in 226 Hz low probe tone immitansmeter, tympanometric gradient, static compliance, acoustical reflex, and patency of the eustachian tube were examined in both groups. Multifrequency tympanometry was performed on all participants to obtain resonance frequency (RF) values. The RF values of the study group before and after performance were also recorded.
RESULTS: High frequency (4,6,8 kHz) pure tone mean thresholds were observed as statistically high in the study group. Absence of acoustic reflex was observed more frequently in the study group and was found to be statistically significant (p = 0.005). There was a statistically significant difference in the TPP and TG median values in the study group (p = 0.000, p = 0.031). When all the ears were evaluated in both groups in terms of patentability of the Eustachian tube, there was a statistically significant difference in the study group (p = 0.048). In the artists who played the wooden wind instrument, the Eustachian tube dysfunction was seen significantly more compared to the copper blow artist and control group (p = 0.029). In the study group, pre-performance RF mean value of all ears was 925 (SD ± 237.6); post-performance RF was 1020 (SD ± 249.6). A significant difference was found between RF mean values obtained before and after performance (p = 0.004). This difference was found to be more evident in the wooden wind instrument performers.
When the study and control groups were compared in terms of RF values; the right RF value was 998,92 Hz (SD±254,05) and left RF value was 1041,07 Hz (SD±247,97) in the working group; right RF value was 906,42 Hz (SD±175,10), and left RF value was 863,21 Hz (SD±139,28) in the control group. There was a statistically significant difference between the two groups in the left ear (p = 0.03).
CONCLUSION: To our knowledge, this study features the first study to examine the middle ear functions of artists playing orchestral wind instruments. The middle ear functions were evaluated in the artists playing the wind instruments and a more prominent Eustachian tube dysfunction were observed. The frequency of the resonance was also found to be higher than that of the control group and before the performance in the study group. Some protective measures should be developed for artists who play the wood blown instruments in which this difference was found to be much more evident. This study is a preliminary study, and a more comprehensive study should be performed in wider patient series with qualitative components of multifrequency tympanometry and a highly valid Eustachian tube function test such as sonotubometry
Genel işlem koşullarının denetimi
No full textTürk hukukunun gelişmelerini takip edip güncel düzenlemelerini örnek aldığı ve
çağdaş hukuk sistemleri içerisinde özgürlükçü olarak bilinen Batı hukukunda uzun yıllardır
yer alan ancak bizim mevzuatımıza tam anlamıyla 6098 sayılı Türk Borçlar Kanunu ile 1
Temmuz 2012 yılında dâhil olan genel işlem koşullarına dair düzenlemeler, özel hukuk
alanına hâkim olan sözleşme özgürlüğü ve bozulan taraf eşitliğinin tekrar tesisi amacıyla
getirilen ve zayıfların korunmasına hizmet eden hükümlerdendir.
Gerçekten de genel işlem koşullarına dair en ayrıntılı düzenlemeler 6098 sayılı
Türk Borçlar Kanunu’nun 20-25.maddeleri arasında yer almıştır. Ancak birtakım özel
kanunlarda da genel işlem koşulları ile ilgili özel düzenlemeler mevcuttur.
Çalışmamızda, öncelikle konu ile bağlı kalarak 6098 sayılı Türk Borçlar
Kanununda yer alan düzenlemelerden; ardından gerek duyuldukça diğer özel kanunlar ve
Alman Medeni Kanun’u hükümlerinden faydalanılmıştır. Zira Alman Medeni Kanun’u,
genel işlem koşullarına dair düzenlemelerin çıkış noktası sayılmakla beraber kanunumuzda
yer alan ayrıntılı düzenlemelerin de kaynağını teşkil etmektedir. Özetle tezimizde 6098
sayılı Türk Borçlar Kanunu'nun 20-25 arasında düzenlenen Genel İşlem Koşullarının
yorum denetimi, yürürlük denetimi, içerik denetimi ve idari denetim konuları detaylı
incelenmiştir.
The most detailed regulations are taking part in Turkish law with the acceptance of
Code of Obligations no. 6098 which is registered to our system in 1st July 2012.
In my dissertation, the regulations in the Turkish code of obligations, the related
private law topics and German civil law rules that are related with the 6098th code of
obligation. As the German civil law is being accepted as the starting point of the
standartized terms of contract in law, it is used in the disseration for theoretical analysis.
To conclude, in the dissertation, contents between 20th and 25th topics of Turkish
Code of Obligations no. 6098 is detailly analyzed with their content audit, operational and
validity controls and administrative audit perspectives