170 research outputs found

    THE OPINIONS OF TEACHERS AND STUDENTS IN THE SCIENCE AND ART CENTER REGARDING THE CONCEPT OF SPECIAL TALENTED

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    Considering the potential of special talented students, the importance of training them is increasing day by day. The perspectives of special talented students and their teachers regarding the concept of special talented are also effective in revealing students' potential. The aim of this study is to determine the opinions of the teachers and students in the Science and Art Center about the concept of special talented. The study was carried out with 20 teachers and 55 students in Science and Art Centers in Turkey in the 2019-2020 academic year. Case study, one of the qualitative research designs, was used. Participants were determined using accessible case sampling. A semi-structured interview form prepared by the researchers was used as a data collection tool. Descriptive analysis was used to analyze the data obtained as a result of the interviews. It has been tried to reflect the positive and negative aspects of special talented students from the perspective of teachers and students. As a result of this study, it has been determined that teachers and students in the Science and Art Center perceive the concept of special talented students as individuals who offer creative solutions to problems and who have a quick grasp. In addition, both students and teachers think that receiving education at Science and Art Centers makes positive contributions to students. Finally, different types of suggestions are made in order to increase the positive sides and eliminate the negative sides of special talented students.  Article visualizations

    Sınıf Öğretmenlerinin Yazma Güçlüğü ile İlgili Görüşleri

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    Bu araştırmanın amacı, sınıf öğretmenlerinin yazma güçlüğüne ilişkin görüşlerini belirlemektir. Araştırmada nitel araştırma yöntemlerinden olgubilim kullanılmıştır. Araştırmanın çalışma grubunu ilkokullarda görev yapan 33 sınıf öğretmeni oluşturmaktadır. Araştırma verileri sınıf öğretmenlerinden, elektronik ortamda, oluşturulan açık uçlu sorularla toplanmıştır. Öğretmenlerden elde edilen veriler betimsel analiz tekniği ile incelenmiştir. Bu kapsamda elde edilen veriler araştırmacı tarafından kodlanmış ve temalara ayrılarak, sınıf eğitimi alanında doktora yapan bir araştırmacının ve bir sınıf öğretmeninin görüşüne sunulmuştur. Güvenirlik Miles ve Huberman tarafından geliştirilen formülle hesaplanmıştır. Değerlendiriciler arası güvenirlik 0.83 olarak belirlenmiştir. Araştırma sonuçlarına göre öğretmenlerin yazma güçlüğünün tanımı ve içeriği hakkında yeterli bilgiye sahip olmadıkları, yazma güçlüğü gösteren öğrencilerin benzer harflerde sorun yaşadıkları, yazma güçlüğünün nedenlerinin farklılık gösterdiği belirlenmiştir. Ayrıca sınıf içi ve sınıf dışı çalışmaların yazının daha çok mekanik yönüne yönelik olduğu, yazma güçlüğü gösteren öğrencilerin aileleri ve akranları ile olan iletişimlerinin genellikle iyi düzeyde olduğu belirlenmiştir. Son olarak öğretmenler pandemi sürecinin yazı çalışmalarını olumsuz yönde etkilediğini ve bu konuda desteğe ihtiyaç duyduklarını belirtmişlerdir

    Derin öğrenme yöntemi ile panoramik radyografiden diş eksikliklerinin tespiti: Bir yapay zekâ pilot çalışması

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    Amaç: Bu çalışmanın amacı, panoramik radyografide diş eksikliklerinin değerlendirilmesi için tasarlanmış tanı amaçlı bilgisayar yazılımının işlevini geliştirmek ve değerlendirmektir.Gereç ve Yöntemler: Veri seti eksik diş tespiti için 99 tam diş ve 54 eksik diş olmak üzere 153 görüntüden oluşmaktadır. Tüm görüntüler Ağız, Diş ve Çene Radyolojisi uzmanları tarafından tekrar kontrol edilmiş ve doğrulanmıştır. Veri setindeki tüm görüntüler eğitim öncesinde 971 X 474 piksel olarak yeniden boyutlandırılmıştır. Açık kaynak kodlu python programlama dili ve OpenCV, NumPy, Pandas, ile Matplotlib kütüphaneleri etkin olarak kullanılarak bir rastgele dizilim oluşturulmuştur. Önceden eğitilmiş bir Google Net Inception v3 CNN ağı ön işleme için kullanılmış ve veri setleri transfer öğrenimi kullanılarak eğitilmiştir.Bulgular: Eğitim de kullanılan görüntülerin modeli tahminlendirmesi ile çıkan başarı oranı % 94.7’dir. Eğitimde kullanılmayan test için ayrılan görüntülerin tahminlemesindeki başarı oranı % 75’dir. Sonuç: Derin öğrenme tekniklerinde veri seti arttıkça başarı oranları da artmaktadır. Daha fazla görüntüyle oluşacak veri setininin eğitim modellerinde başarı oranları yükselecektir. Gelecek çalışmalar daha büyük veri setleriyle yapılmalıdır.ANAHTAR KELİMELER Panoramik radyografi, derin öğrenme, yapay zek

    Genetic characterization of grape (Vitis vinifera L.) germplasm from Southeast Anatolia by SSR markers

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    Southeast Anatolia is located in close proximity to the center of origin of grapes and is an important grape producing area of Turkey. The important location of this region for grape genetic diversity together with its diverse ecological conditions may have led to the development of grape germplasm that is unique to this region. However, so far little has been done to genetically analyze this grape germplasm. In this study, we genetically analyzed 55 grape cultivars originating from six different provinces of this region using 14 simple sequence repeat (SSR) loci and a number of ampeolographic characteristics. Based on these analyses, one case of synonymous and four cases of homonymous grape cultivars were identified. The contribution of our results to better characterization of the grape germplasm of the region as well as future germplasm management and breeding efforts is discussed.

    SUCCESS OF ARTIFICIAL INTELLIGENCE SYSTEM IN DETERMINING ALVEOLAR BONE LOSS FROM DENTAL PANORAMIC RADIOGRAPHY IMAGES

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    Objectives: The aim of this study was to detect alveolar bone loss from dental panoramic radiographic images using artificial intelligence systems. Material and Methods: A total of 2276 panoramic radiographic images were used in this study. While 1137 of them belong to cases with bone destruction, 1139 were periodontally healthy. The dataset is divided into three parts as training (n=1856) , validation (n=210) and testing set (n= 210). All images in the data set were resized to 1472x718 pixels before training. A random sequence was created using the open-source python programming language and OpenCV, NumPy, Pandas, and Matplotlib libraries effectively. A pre-trained Google Net Inception v3 CNN network was used for preprocessing and data sets were trained using transfer learning. Diagnostic performance was evaluated with the confusion matrix using sensivitiy, specificity, precision, accuracy and F1 score. Results: Of the 105 cases with bone loss, 99 were detected by the AI system. Sensitivity was 0.94, specificity 0.88, precision 0.89, accuracy 0.91 and F1 score 0.91. Conclusion: The convolutional neural network model is successful in determining periodontal bone losses. It can be used as a system to facilitate the work of physicians in diagnosis and treatment planning in the future

    Snapshot evaluation of acute and chronic heart failure in real-life in Turkey: a follow-up data for mortality

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    Objective: Heart failure (HF) is a progressive clinical syndrome. SELFIE-TR is a registry illustrating the overall HF patient profile of Turkey. Herein, all-cause mortality (ACM) data during follow-up were provided. Methods: This is a prospective outcome analysis of SELFIE-TR. Patients were classified as acute HF (AHF) versus chronic HF (CHF) and HF with reduced ejection fraction (HFrEF), HF with mid-range ejection fraction, and HF with preserved ejection fraction and were followed up for ACM. Results: There were 1054 patients with a mean age of 63.3±13.3 years and with a median follow-up period of 16 (7–17) months. Survival data within 1 year were available in 1022 patients. Crude ACM was 19.9% for 1 year in the whole group. ACM within 1 year was 13.7% versus 32.6% in patients with CHF and AHF, respectively (p<0.001). Angiotensin-converting enzyme inhibitor/angiotensin receptor blocker, beta blocker, and mineralocorticoid receptor antagonist were present in 70.6%, 88.2%, and 50.7%, respectively. In the whole cohort, survival curves were graded according to guideline-directed medical therapy (GDMT) scores ?1 versus 2 versus 3 as 28% versus 20.2% versus 12.2%, respectively (p<0.001). Multivariate analysis of the whole cohort yielded age (p=0.009) and AHF (p=0.028) as independent predictors of mortality in 1 year. Conclusion: One-year mortality is high in Turkish patients with HF compared with contemporary cohorts with AHF and CHF. Of note, GDMT score is influential on 1-year mortality being the most striking one on chronic HFrEF. On the other hand, in the whole cohort, age and AHF were the only independent predictors of death in 1 yea

    A novel study on bean common mosaic virus accumulation shows disease resistance at the initial stage of infection in Phaseolus vulgaris

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    Accurate and early diagnosis of bean common mosaic virus (BCMV) in Phaseolus vulgaris tissues is critical since the pathogen can spread easily and have long-term detrimental effects on bean production. The use of resistant varieties is a key factor in the management activities of BCMV. The study reported here describes the development and application of a novel SYBR Green-based quantitative real-time PCR (qRT-PCR) assay targeting the coat protein gene to determine the host sensitivity to the specific NL-4 strain of BCMV. The technique showed high specificity, validated by melting curve analysis, without cross-reaction. Further, the symptoms development of twenty advanced common bean genotypes after mechanical BCMV-NL-4 infection was evaluated and compared. The results showed that common bean genotypes exhibit varying levels of host susceptibility to this BCMV strain. The YLV-14 and BRS-22 genotypes were determined as the most resistant and susceptible genotypes, respectively, in terms of aggressiveness of symptoms. The accumulation of BCMV was analyzed in the resistant and susceptible genotypes 3, 6, and 9 days following the inoculation by the newly developed qRT-PCR. The mean cycle threshold (Ct) values showed that the viral titer was significantly lower in YLV-14, which was evident in both root and leaf 3 days after the inoculation. The qRT-PCR thus facilitated an accurate, specific, and feasible assessment of BCMV accumulation in bean tissues even in low virus titers, allowing novel clues in selecting resistant genotypes in the early stages of infection, which is critical for disease management. To the best of our knowledge, this is the first study of a successfully performed qRT-PCR to estimate BCMV quantification

    Orak hücre anemili çocuk ve ergenlerde ebeveyn ve öğretmen bildirilerine dayalı psikiyatrik sorunlar

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    Amaç: Bu çalışma Orak Hücre Anemisi (OHA) tanılı çocuk ve ergenlerde psikiyatrik sorunların varlığını incelemeyi amaçlamıştır. Gereç ve Yöntemler: 4-18 yaş arası için Çocuk Davranış Kontrol Listesi (ÇDKL/4-18), Conners Ebeveyn Derecelendirme Ölçeği (CEDÖ), Conners Öğretmen Derecelendirme Ölçeği (CÖDÖ-R) ve Turgay DSM-IV’e dayalı Çocuk ve Ergen Davranış Bozuklukları Tarama ve Derecelendirme Ölçeği, klinisyen ve ebeveyn formları (T-DSM-IV-Ö) 7-18 yaş arası OHA tanılı 31 çocuğun ve 34 yaş olarak eşlenmiş demir eksikliği anemisi tanılı kontrol grubunun bakım vericileri ve öğretmenlerine verildi. Bulgular: OHA tanılı çocuk ve ergenler her 4 ölçekte de daha yüksek puanlar aldılar. Ölçek alt puanlarında içe atım sorunları ve dikkat sorunları öne çıkıyordu. Sonuç: OHA tanılı çocuk ve ergenlerin psikiyatrik sorunlar açısından yüksek riskte olduğu görünmektedir. Olgulara düzenli psikolojik değerlendirme yapılması ve çocuk ve ergen psikiyatri kliniklerine refere edilmesi risk altında olan olguların zamanında tanısı ve etkin tedavisine katkı sağlayabilir.Objective: This study aimed to investigate the occurrence of psychiatric problems in children and adolescents with sickle cell disease (SCD). Material and Methods: The Child Behavior Checklist for ages 4-18 years (CBCL/4-18), Conners&amp;#8217; Parent Rating Scale (CPRS), Conners&amp;#8217; Teacher Rating Scale (CTRS-R), and The Turgay DSM-IV Based Child and Adolescent Behavior Disorders Screening and Rating Scale, clinician and parent forms (T-DSM-IV-S) were given to the caregivers and teachers of 31 children with SCD aged between 7-18 years and the caregivers and teachers of 34 age matched controls with iron- deficiency anemia. Results: The SCD patients had higher scores on all 4 of scales. Among the subscales, internalizing problems, and attention problems were more prominent in the SCD patients. Conclusion: Children and adolescents with SCD appear to have an increased risk for psychiatric problems. Regular psychological evaluation and referral to child and adolescent psychiatry clinics may facilitate timely diagnosis and effective treatment of at-risk children and adolescents
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