Fen ve Teknoloji Dersinde Öğrencilerin Sınıf-İçi Değerlendirme Ortamına İlişkin Algıları Ölçeğinin Türkçeye Uyarlanması

The purpose of this study is to adapt the Students' Perceptions of the Classroom Assessment Environment Scale (SPCAES) which was developed by Alkharusi (2011) into Turkish. The participants consist of 305 seventh and eighth grade elementary school students. At the first stage of the study, the linguistic validity of the translated scale was explored. Upon satisfaction of the linguistic validity requirements, exploratory factor analysis and confirmatory factor analysis were performed in order to examine the construct validity of SPCAES. The reliability of the SPCAES is investigated by calculating the Cronbach alpha reliability coefficients. Corrected item-total correlations and t-tests between the upper 27% and the lower 27% groups, in terms of item means, were used to check the item discrimination index. The findings of this study indicate that the Turkish PCAES is a valid and reliable research instrument for Turkish students.Bu çalışmanın amacı, ilköğretim öğrencilerinin Fen ve Teknoloji dersi kapsamında sınıf-içi değerlendirme ortamına ilişkin algılarını ortaya koyabilmek için, Alkharusi (2011) tarafından geliştirilen Öğrencilerin Sınıf-içi Değerlendirme Ortamına İlişkin Algıları Ölçeği’ni (ÖSDOAÖ) Türkçeye uyarlamaktır. Araştırmanın çalışma grubunu dört farklı ilköğretim okulunun 7. ve 8. sınıflarında öğrenim gören 305 öğrenci oluşturmuştur. Uyarlama çalışmasının ilk aşamasında dil geçerliliğine ilişkin uygulama yapılmıştır. Türkçe dil eşdeğerliği sağlandıktan sonra ölçeğin yapı geçerliliğini belirlemekte açımlayıcı ve doğrulayıcı faktör analizi teknikleri kullanılmıştır. Ölçekte yer alan maddelerin güvenilirliklerini belirlemek amacıyla Cronbach α iç güvenilirlik katsayıları hesaplanmıştır. Maddelerin ayırt ediciliklerini belirlemek amacıyla ise madde-toplam korelâsyonları hesaplanmış ve toplam puana göre belirlenmiş üst % 27 ve alt % 27’lik grupların madde puanları arasındaki farkın anlamlılığı t-testi ile belirlenmiştir. Araştırmanın bulguları ÖSDOAÖ’nün Türkçe formunun Türk öğrenciler için geçerli ve güvenilir olduğunu göstermektedir

Alterations in biochemical profiles of patients with severe COVID-19 pneumonia: Analysis of repeated laboratory tests

Objective: This study was initiated to show the changes in the biochemical profile and identify the mortality risk factors of patients with severe coronavirus disease-19 (COVID-19) pneumonia. Materials and Methods: This study was designed as non-interventional and cohort research. Demographic and clinical data were retrospectively obtained from paper-based documents and electronic health records. Complete blood counts, inflammatory markers, liver, and kidney function tests, and coagulation profiles were recorded 3 times. Two-way ANOVA for repeated measures was used to analyze for continuous dependent variables. Binary logistic regression analysis was performed to determine in-hospital mortality risk factors. Results: Two hundred and fifty-two adult patients with severe COVID-19 pneumonia enrolled in our study – 15.8% of patients died during hospitalization. The mortality rate was 57.5% for those over 65 years of age. 61.9% of patients had at least one coexisting disease. We revealed hemoglobin, leukocyte, lymphocyte, platelet, C-reactive protein, procalcitonin, d-dimer, aspartate aminotransferase, and alanine aminotransferase, lactate dehydrogenase, creatinine, and ferritin were significantly changing within the time and also between survivors and non-survivors. Conclusion: The study showed that blood cell counts, coagulation profiles, liver and kidney function tests, and inflammatory markers deteriorated in non-survivor COVID-19 patients. Patients with shortness of breath, history of congestive heart failure, coronary artery disease, dementia, chronic renal disease, higher Charlson comorbidity index score, the need for invasive mechanic ventilation, presence of acute respiratory distress syndrome, and intensive care unit admission are more vulnerable to death

Effect of a novel commercial potassium-oxalate containing tooth-desensitizing mouthrinse on the microhardness of resin composite restorative materials with different monomer compositions

The effects of mouthrinses on dental resin composites have been investigated extensively. However, there is little information available regarding the effects of ‘newly developed mouthrinse’ formulations on the microhardness of different monomer based composite systems. Therefore, the aim of this study was to investigate the effect of a novel potassium-oxalate containing desensitizing mouthrinse on the microhardness of different monomer based composite materials. A hundred and twenty specimens (6mm in diameter and 2mm in height) were prepared for composite resin groups (methacrylate based, DX-511 monomer based and silorane monomer based) and for storage solution groups (artificial saliva and potassium oxalate-containing tooth-desensitizing mouthrinse). After allowing post-polimerization the baseline Knoop microhardness measurements for all specimens were recorded. The specimens were stored in 20 mL mouthwash and artificial saliva for 12 hours at 37ºC. The post-immersion microhardness values of all specimens were also recorded. Data were subjected to ANOVA/Scheffe’s test at a significance level of 0.05. The intra group (pre and post immersion values) comparison of the mean microhardness values of the specimens was done using Wilcoxon signed rank test. The microhardness of the silorane based composite was not affected significantly (p>0.05). The hardness values of the DX-511 monomer based composite and the methacrylate based composite exhibited a slight but not significant microhardness change compared to the baseline values (p>0.05). Studies reported that the effect of mouthrinses on microhardness changes of composite resins may be material dependent, and the hardness change susceptibility of a restorative material may be attributed to its resin matrix or filler type. However, dental monomers as well as the oral care products have an ever-evolving technology and future studies should consider newer products. Potassium oxalate containing mouthrinses, especially alcohol-free ones, may be used safely with dental composites with newly developed low-shrink monomer compositions

Prediction of the Y-Chromosome Haplogroups within a recently settled Turkish Population in Sarajevo, Bosnia & Herzegovina

Analysis of Y-chromosome haplogroup distribution is widely used when investigating geographical clustering of different populations, which is why it plays an important role in population genetics, human migration patterns and even in forensic investigations. Individual determination of these haplogroups is mostly based on the analysis of single nucleotide polymorphism (SNP) markers located in the non-recombining part of Y-chromosome (NRY). On the other hand, the number of forensic and anthropology studies investigating short tandem repeats on the Y-chromosome (Y-STRs) increases rapidly every year. During the last few years, these markers have been successfully used as haplogroup prediction methods, which is why they have been used in this study. Previously obtained Y-STR haplotypes (23 loci) from 100 unrelated Turkish males recently settled in Sarajevo were used for the determination of haplogroups via ‘Whit Athey’s Haplogroup Predictor’ software. The Bayesian probability of 90 of the studied haplotypes is greater than 92.2% and ranges from 51.4% to 84.3% for the remaining 10 haplotypes. A distribution of 17 different haplogroups was found, with the Y-haplogroup J2a being most prevalent, having been found in 26% of all the samples, whereas R1b, G2a and R1a were less prevalent, covering a range of 10% to 15% of all the samples. Together, these four haplogroups account for 63% of all Y-chromosomes. Eleven haplogroups (E1b1b, G1, I1, I2a, I2b, J1, J2b, L, Q, R2, and T) range from 2% to 5%, while E1b1a and N are found in 1% of all samples. Obtained results indicate that a large majority of the Turkish paternal line belongs to West Asia, Europe Caucasus, Western Europe, Northeast Europe, Middle East, Russia, Anatolia, and Black Sea Y-chromosome lineages. As the distribution of Y-chromosome haplogroups is consistent with the previously published data for the Turkish population residing in Turkey, it was concluded that the analyzed population could also be recognized as a representative sample of the Turkish population residing in Turkey

AA1050 ALÜMİNYUM`A SiO2 İLAVESİNİN MEKANİK DAVRANIŞLARA ETKİSİ

AA1050 ALÜMİNYUM`A SiO2 İLAVESİNİN MEKANİK DAVRANIŞLARA ETKİSİÖzetModern mühendislik alanlarında kaydedilen yeni gelişmeler, geleneksel metal ve alaşımlarının yeni hizmet alanlarının ihtiyaçlarını karşılayamadığı için, yeni malzemelere olan talepleri de arttırmaktadır. Metal matrisli kompozitlerin üretiminde en yoğun kullanılan metal alaşımları, düşük yoğunlukları ve kolay üretilebilirlikleri nedeniyle alüminyum alaşımlarıdır. Alüminyum ve alaşımlarının iyi özelliklerinin yanı sıra mekanik özelliklerinin düşük olması gibi bazı önemli dezavantajlarının olması bu malzemelerin kullanımlarını sınırlandırmaktadır. Ticari alüminyum ve alaşımlarının bu olumsuz özelliklerinin giderilmesinde kullanılan en yaygın yöntemlerden birisi de bu malzemelere sert takviye elemanları ilave etmektir. Bu şekilde bu malzemelerin dayanım ve sertlikleri önemli derecede artırılmaktadır. Bu çalışmada alüminyum matrisli nano SiO2 takviyeli kompozit malzeme üretimi yapılmıştır. Nano SiO2oranı olarak ağırlıkça%3 ve%1,5 oranlarında karıştırılarak AA1050 malzeme referansı üzerinden çekme testi ile meydana gelen mekanik davranışlardaki değişimler incelenmiştir. Kompozit malzemenin çekme mukavemet değerlerinde artış %3 nano SiO2 karışımında tavsız haddelenmiş değişik kalınlıklarda alınan numunelerin çekme analizi sonucunda ortalama %8,61 artış tespit edilmiştir. Malzemenin mukavemet değerlerinde artış %1,5 nano SiO2 karışımında tavsız haddelenmiş değişik kalınlıklarda alınan numunelerin çekme analizi sonucunda ortalama %4,42 artış tespit edilmiştir. Malzemenin çekme mukavemet değerlerinde artış %3 nano SiO2 karışımında tavsız haddelenmiş daha sonrasında tavlanıp H0 yapılmış değişik kalınlıklarda alınan numunelerin çekme analizi sonucunda ortalama %4,37 artış görülmüştür. Malzemenin mukavemet değerlerinde artış %1,5 nano SiO2 karışımında tavsız haddelenmiş daha sonrasında tavlanıp H0 yapılmış değişik kalınlıklarda alınan numunelerin çekme analizi sonucunda ortalama %3,99 artış sağlamıştır. Yapılan çalışmada optimum %1,5 SiO2 miktarının alüminyum malzemenin mukavemet değerlerini önemli ölçüde arttırdığı tespit edilmiştir.Anahtar Kelimeler: Alüminyum matrisli nano SiO2 takviyeli kompozit malzeme, Nano SiO2 nano kompozit malzeme, Alüminyum kompozitTHE EFFECT OF SiO2 ADDITION TO AA1050 ALUMINUM ON MECHANICAL BEHAVIORAbstractNew developments in the field of modern engineering increase the demand for new materials as traditional metals and alloys cannot meet the needs of new service areas. The most commonly used metal alloys in the production of metal matrix composites are aluminum alloys due to their low density and easy productionability. The good properties of aluminum and their alloys, as well as their low mechanical properties, have some important disadvantages that limit their use. One of the most common methods used to eliminate these negative properties of commercial aluminum and its alloys is to add rigid reinforcing elements to these materials. In this way, the strength and hardness of these materials are significantly increased. In this study, aluminum matrix nano SiO2 reinforced composite material was produced. Nano SiO2 ratio of 3% by weight and 1.5% by mixing the AA1050 material reference to the changes in the mechanical behavior of the tensile test is examined. Increase in tensile strength values of composite material was obtained by an average increase of 8.61% as a result of tensile analysis of samples taken at 3% nano SiO2 mixture without annealed rolled. The increase in the strength values of the material was found to be 4.42% increase as a result of tensile analysis of the samples taken at different thicknesses without annealing in 1.5% nano SiO2 mixture. The tensile strength values of the material increased by 3% nano SiO2 mixture without annealed and then annealed and made of H0 made of different thicknesses of samples taken as a result of the tensile analysis showed an average increase of 4.37%. The increase in the strength values of the material was obtained by an average of 3.99% as a result of the tensile analysis of the samples taken at different thicknesses of 1.5% nano SiO2 mixture and then annealed and made of H0. In the study, it was found that the optimum amount of SiO2 1.5% significantly increased the strength values of aluminum material.Keywords: Aluminum matrix nano SiO2 reinforced composite material, Nano SiO2, Nano composite material, Aluminum composit

Impact of Musical Creative Drama Education on Self-Confidence of Preschool Children

The aim of this study is to examine the impact of getting musical creative drama education on self-confidence of preschool children. The study was conducted in Tokat Private İlgim Schools, with 4, 5 and 6 year-old preschool children in the 2018-2019 academic year. The education was conducted with a total of 50 students, 29 being boys and 21 girls. The research data were collected through the Günalp self-confidence observation test that is applied to preschool children. At the end of the 10-week experimental period, the impact of creative drama education on self-confidence of preschool children was tested. SPSS program was used for data analysis. "ANOVA" was used in the comparison of the levels of self confidence by hometown, number of individuals living at the household, status of parents, number of siblings, child's birth order in the family, economic status of the family, age of starting school, caregivers before starting school, education level and occupation types. Results of the study showed that there was a significant difference in self-confidence development of preschool students as a result of creative drama studies. No statistically significant difference was found in the self-confidence development of students in terms of gender, hometown, number of individuals living at the household, status of parents, number of siblings, child's birth order in the family, economic status of the family, age of starting school, caregivers before starting school, education level and occupation types of parents. There was a significant difference between pre-school students' self-confidence in proportion to their ages. It was seen that musical creative drama activities make a positive impact on the self-confidence of preschool students

Comparison of body mass index level by triage level in the emergency department

INTRODUCTION: Obesity is a high cause of death in both non-communicable and communicable diseases such as COVID-19. The aim of this study is to increase the awareness of emergency department (ED) managers and employees about this problem by showing obesity rates according to triage level in patients admitted to the ED.MATERIAL AND METHODS: BMI levels and complaints of 1246 patients admitted to the ED according to the 3-level triage were re-evaluated with the 5-level ESI (Emergency Severity Index) triage for this study.RESULTS: The mean BMI of 1246 patients was found to be 27.25 ± 5.88 (overweight). 26% of the ED patients were found to be obese and 37.7% of them were overweight. While the mean BMI score of the 6–11 age group was found to be class 1 obesity, the other pediatric and adult age groups were found to be overweight. The highest mean BMI according to both the 3-stage triage system and the 5-stage ESI triage system was found in triage 1 patients (28.8011 ± 7.98; 28.18 ± 6.78, respectively). Obese patients mostly applied to the ED with orthopedic problems and trauma (26.5%). Also, of the patients with class 3 severe obesity, 50% presented with trauma.CONCLUSIONS: The higher the BMI, the higher the triage severity level. BMI levels should be evaluated in the field of triage together with vital signs, especially in trauma patients, and obesity should be considered in ED and hospital management

Comparison of thoracotomy and thoracoscopy in patients with esophageal atresia - tracheoesophageal fistula

Objective: The aim of this study was to compare the patients who underwent EA-TEF repair with both classical and thoracoscopic methods, and thus to reveal the advantages and disadvantages of both techniques. Materials and methods: In this study, the files of 45 patients who underwent surgery for EA-TEF at the Erciyes University Faculty of Medicine (EUFM) Pediatric Surgery Clinic between August 2005 and July 2012 were retrospectively examined. Patients were divided into two groups based on the surgical method applied. Results: A total of 45 patients who presented with EA-TEF and underwent surgical procedures were evaluated. Thirty-one (70%) patients underwent thoracotomy (Group I), and 14 (30%) patients underwent surgery using the thoracoscopic method (Group II). The average gestational age was 37.5 weeks, and the birth weight was 2600 grams. Nineteen (42%) of the patients were female, and 26 (58%) were male. Group I was 39 weeks and 38 weeks in Group II. There was no significant difference in gestational age between the two groups (p>0.05). There was no significant difference between the groups regarding accompanying system anomalies (p>0.05). The time to surgery for patients in both groups was 2 days (p>0.05). The operation time in Group I (95 minutes) was shorter than in Group II (105 minutes) (p<0.05). The time to start gavage feeding after surgery in Group II was shorter compared to Group I (p<0.05). No difference was detected between the groups concerning the time to start oral feeding (p>0.05). No difference was detected between the groups concerning the length of hospital stay (p>0.05). There was no significant difference between the groups regarding the rate of complications (p>0.05). No patient died during surgery. Eleven (35%) of the 31 patients in Group I and 2 (14%) of the 14 patients in Group II died between postoperative days 1 and 25. There was no difference in mortality rates between the groups (p>0.05). Conclusions: Postoperative complications were detected at similar rates in both groups

An Eample for the lifelong music education: Bolu Young Musicians FestivalHayat boyu müzik eğitimine bir örnek: Bolu Genç Müzisyenler Şenliği

In this study, the work of  The Association Supporting The Young Artist, one of the rare non-governmental organizations in the arts  in Bolu, has been introduced and the contributions of The Festivals Of Young Musicians which has been organised by the associatioan for six years,  to the artisitic life and Lifelog  Music Education of all individuals form seven to seventy in the city, have been described. ÖzetBu çalışmada,  Bolu ilinde il genelinde yer alan, sanat alanındaki nadir sivil toplum kuruluşlarından olan Genç Sanatçıları Destekleme Derneği’nin  çalışmaları tanıtılmış, dernek tarafından 6 yıldır düzenlenmekte olan Genç Müzisyenler Şenliğinin Bolu ilindeki sanat hayatına ve yediden yetmiş yediye tüm bireylerin Hayat Boyu Müzik Eğitimine olan katkıları betimlenmiştir

Elastic Stable Intramedullary Nailing for Pediatric Forearm Fractures: A Retrospective Analysis of Thirty Four Cases

Aim: The purpose of this investigation was to present our institutional experience of 34 pediatric both bone forearm fractures treated with titanium elastic intramedullary nails. Methods: Thirty-four patients, who were treated with titanium elastic nail for both bone forearm fractures diagnosis between 2011 and 2016, were included in the study. Clinical and radiological evaluation of the patients was retrospectively analyzed. Results: Bone healing process was completed for all patients at a mean of 6.6 weeks. The implants were removed at a mean time of 9.7 months from the index operation. Complications, including skin infections at the entry side of the nail, were recorded in three (8.82%) patients. These three patients had type 1 open fracture according to the Gustilo-Anderson classification and were treated with first generation cephalosporins. In a subjective measure of outcome during follow-up, it was observed that 33 patients (97.06%) were very satisfied and one (2.94%) was satisfied; no patient reported being not satisfied. Conclusion: Since titanium elastic nailing is a safe and effective method of treatment with advantages of easy implantation and removal as well as excellent cosmetic and functional results, elastic stable intramedullary nailing is the first treatment option that should be considered in pediatric both bone forearm fractures