1,912 research outputs found

    Okul öncesi eğitimde Montessori yaklaşımına ilişkin lisansüstü tezlerin incelenmesi: Tematik içerik analiz çalışması

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    This study was carried out to examine postgraduate theses in Turkey on Montessori approach in the field of pre-school education. Thus, of the theses in YÖK (the council of higher education) Thesis Center until May, 2021 54 theses were examined through using publication evaluation template and subjected to thematic content analysis. Each of the theses included in the study was examined according to the parameters of the citation information, purpose, method information. So, it was determined that there were fluctuations in the distribution of theses related to Montessori approach by years, a limited number of studies were conducted at the doctoral level and that different data collection tools were used, but scale/test and information forms were preferred more.  In some theses, no information about sample size, sampling method and data analysis was included. The results were discussed based on the related literature and recommendations were made for researchers and practitioners.Bu araştırma, okul öncesi eğitim alanında Montessori yaklaşımına ilişkin Türkiye’de yapılmış olan lisansüstü tezleri incelemek amacıyla yapılmıştır. Bu amaç doğrultusunda 31 Mayıs 2021 tarihine kadar YÖK Tez Merkezi veri tabanında taranan 54 tez yayın değerlendirme şablonu kullanılarak incelenmiş ve tematik içerik analizine tabi tutulmuştur. Çalışmaya alınan tezlerin her biri; künye bilgileri (yayımlandığı yıl, il, yayım türü), amaç, yöntem bilgileri (yöntem/desen, çalışma grubu/örneklem, örneklem büyüklüğü, örneklem belirleme yöntemi, veri toplama aracı, veri analizi) parametrelerine göre incelenmiştir. Çalışma sonucunda, Montessori yaklaşımı ile ilgili tezlerin yıllara göre dağılımında dalgalanmalar olduğu, doktora düzeyindeki çalışmaların sınırlı sayıda olduğu, tezlerde farklı türde veri toplama araçlarının kullanıldığı ancak ölçek/test ile bilgi formlarının daha fazla tercih edildiği tespit edilmiştir. İncelenen bazı tezlerde ise örneklem büyüklüğü, örneklem belirleme yöntemi ve veri analizi ile ilgili herhangi bir bilgiye yer verilmediği belirlenmiştir. Araştırmada elde edilen sonuçlar ilgili literatür kapsamında tartışılmış araştırmacı ve uygulayıcılara önerilerde bulunulmuştur

    The width of life is more important than the length of life

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    A 58-year-old man with previous inferior myocardial infarction (MI) was referred for cardiac resynchronization therapy pacemaker (CRT-P) for decreased left ventricular ejection fraction (LVEF; 45%) and left bundle branch block (LBBB) (Figure 1). He had New York Heart Association Class I functional classification but palpitation for 3 months. General physical and cardiac examinations were normal. On the admission day, the electrocardiogram showed a narrow QRS rhythm with and without tachycardia (Figures 2 and 3). Would you recommend or consider a CRT-P device or a CRT defibrillator or only an implantable cardioverter defibrillator (ICD) based on these clinical and electrocardiographic findings, or ablation or medical therapy only

    Convergent double coronary sinus potentials during atrial tachycardia

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    The analysis of the patterns and timing of coronary sinus activation provides a rapid stratification of the most likely macro-re-entrant atrial tachycardias and points toward the likely origin of centrifugal ones by comparing the left atrial and coronary sinus activation sequence and morphology during sinus rhythm and atrial tachycardia. The analysis of both the near- and far-field electrogram morphology of atrial signals also gives important clues in determining the mechanism of the arrhythmia

    Rationale, design, and methodology of the MORCOR-TURK trial: predictors of in-hospital MORtality in CORonary care patients in Turkey

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    Background: Coronary care units are sophisticated clinics established to reduce deaths due to acute cardiovascular events. Current data on coronary care unit mortality rates and predictors of mortality in Turkey are very limited. The MORtality predictors in CORonary care units in TURKey (MORCOR-TURK) trial was designed to provide information on the mortality rates and predictors in patients followed in coronary care units in Turkey. Methods: The MORCOR-TURK trial will be a national, observational, multicenter, and noninterventional study conducted in Turkey. The study population will include coronary care unit patients from 50 centers selected from all regions in Turkey. All consecutive patients admitted to coronary care units with cardiovascular diagnoses between 1 and 30 September 2022 will be prospectively enrolled. All data will be collected at one point in time, and the current clinical practice will be evaluated (ClinicalTrials.gov number NCT05296694). In the first step of the study, admission diagnoses, demographic characteristics, basic clinical and laboratory data, and in-hospital management will be assessed. At the end of the first step, the predictors and rates of in-hospital mortality will be documented. The second step will be in cohort design, and discharged patients will be followed up till 1 year. Predictors of short- and long-term mortality will be assessed. Moreover, a new coronary care unit mortality score will be generated with data acquired from this cohort. Results: The short-term outcomes of the study are planned to be shared by early 2023. Conclusion: The MORCOR-TURK trial will be the largest and most comprehensive study in Turkey evaluating the rates and predictors of in-hospital mortality of patients admitted to coronary care units

    Constraints on the χ_(c1) versus χ_(c2) polarizations in proton-proton collisions at √s = 8 TeV

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    The polarizations of promptly produced χ_(c1) and χ_(c2) mesons are studied using data collected by the CMS experiment at the LHC, in proton-proton collisions at √s=8  TeV. The χ_c states are reconstructed via their radiative decays χ_c → J/ψγ, with the photons being measured through conversions to e⁺e⁻, which allows the two states to be well resolved. The polarizations are measured in the helicity frame, through the analysis of the χ_(c2) to χ_(c1) yield ratio as a function of the polar or azimuthal angle of the positive muon emitted in the J/ψ → μ⁺μ⁻ decay, in three bins of J/ψ transverse momentum. While no differences are seen between the two states in terms of azimuthal decay angle distributions, they are observed to have significantly different polar anisotropies. The measurement favors a scenario where at least one of the two states is strongly polarized along the helicity quantization axis, in agreement with nonrelativistic quantum chromodynamics predictions. This is the first measurement of significantly polarized quarkonia produced at high transverse momentum
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