Study on the use of mobile devices in schools: the case of Turkey

This paper reflects on how to promote mobile educational technology by using tablet PCs in classes in private schools. We conducted a review of the studies available at Council of Higher Education (Yüksek Öğretim Kurulu-YÖK), that provides a thesis online database1. This analysis shows time and location pose problems while reaching the information at school based learning. So, teachers and students prefer mobile learning as it enables them to reach the information in an easier and faster way

Cephalometric Evaluation of Turkish Children With Class III Malocclusion in the Mixed Dentition

Objective:To investigate the cephalometric characteristics of Turkish children with Class III malocclusion and compare them with to those of children with clinically normal occlusion during the mixed dentition phase.Materials and Method:Lateral cephalometric radiographs of 80 children with Class III malocclusion (mean age, 10.23 years) and 80 subjects with normal occlusion (mean age, 10.79 years) were examined for the study. Mean values of 13 linear and 21 angular cephalometric parameters were measured and compared.Results:Sagittal skeletal measurements included SNB (Class III, 81.82 ± 4.26; control group, 74.5 ± 3.86; p<.001), ANB (Class III, −2.35 ± 2.02; control group, 2.4 ± 1.17; p<.0001), Pg to Nasion vertical (Class III, −5.70 ± 2.68; control group, −9.60 ± 3.21; p<.05), Wits appraisal (Class III, −5 ± 4.57; control group, −0.8 ± 2.44; p<.05), Co-A (Class III, 79.38 ± 2.19; control group, 83.94 ± 2.64; p<.01) and Co-Gn (Class III, 105.7 ± 2.04; control group, 102.4 ± 1.15; p<.05). Vertical skeletal analysis included Gonial angle (Class III, 132.6 ± 7.15; control group, 122.1 ± 6.6; p<.01), and S-Ar length (Class III, 28.31 ± 0.9; control group, 30.2 ± 1.4; p<.05). Dentoalveolar measurements included U1 to SN (Class III, 107.96 ± 8.13; control group, 98.4 ± 8.19; p<.05). Soft tissue measurements included soft tissue convexity (Class III, 173.4 ± 3.68; control group, 165.9 ± 3.25; p<.01).Conclusion:The findings of the study indicated that effective mandibular length was larger in Class III groups and effective maxillary length was smaller in Class III groups

Temporal Change of Climatological Precipitation Deficit Index in the Buyuk Menderes Basin, Turkey

###EgeUn###Climatological precipitation deficit index (PD) is one the indices used to monitor agricultural drought by examining the difference between precipitation and evapotranspiration. In this study, the meteorological stations located in the Buyuk Menderes Basin, which has an important agricultural potential for Turkey, are used to determine the PD and its temporal variation by Mann-Kendall trend analysis using the monthly climate data of the period 1975 to 2014. The long-term average rainfall in the Buyuk Menderes Basin is 574 mm, the reference evapotranspiration is 1225 mm, and the average PD value is 651 mm. It was observed that the value of the precipitation deficit in the basin varies considerably in the long term. The trend analysis showed five of the six stations in the basin to have an increasing trend, which in three of these five stations was statistically significant. It was concluded that the increasing trend determined in the precipitation deficit derived more from the increases determined in the ET0 values than from the decrease in precipitation

Mixed and multi-precision SpMV for GPUs with row-wise precision selection

Sparse Matrix-Vector Multiplication (SpMV) is one of the key memory-bound kernels commonly used in industrial and scientific applications. To improve its data movement and benefit from higher compute rates, there are several efforts to utilize mixed precision on SpMV. Most of the prior-art focus on performing the entire SpMV in single-precision within a bigger context of an iterative solver (e.g., CG, GMRES). In this work, we are interested in a more fine-grained mixed-precision SpMV, where the level of precision is decided for each element in the matrix to be used in a single operation. We extend an existing entry-wise precision based approach by deciding precisions per row, motivated by the granularity of parallelism on a GPU where groups of threads process rows in CSR-based matrices. We propose mixed-precision CSR storage methods with row permutations and describe their greater efficiency and load-balancing compared to the existing method. We also consider a multi-precision case where single and double precision copies of the matrix are stored priorly and further extend our mixed-precision SpMV approach to comply with it. As such, we leverage a mixed-precision SpMV to obtain a multi-precision Jacobi method which is faster than yet almost as accurate as double-precision Jacobi implementation, and further evaluate a multi-precision Cardiac modeling algorithm. We demonstrate the effectiveness of the proposed SpMV methods on an extensive dataset of real-valued large sparse matrices from the SuiteSparse Matrix Collection using an NVIDIA V100 GPU

Comparison of Soft Tissue Cephalometric Norms between Turkish and European-American Adults

Gelgor, I. Erhan/0000-0003-0859-9874WOS: 000316150000001PubMed: 23533362One of the most important components of orthodontic diagnosis and treatment planning is the evaluation of the patient's soft tissue profile. The main purpose of this study was to develop soft-tissue cephalometric standards for Turkish men and women and compare them with the cephalometric standards of normal European-American white people. The sample included 96 Turkish adults (48 women, 48 men), aged 20 to 27 years. Turkish subjects have increased facial convexity associated with retruded mandible, more obtuse lower face-throat angle, increased nasolabial angle and upper lip protrusion, deeper mentolabial sulcus, and smaller interlabial gap compared with European-American white people. It is appropriate to consider these differences during routine diagnosis and treatment planning of a Turkish patient or an American patient of European ancestry. Turkish males reveal more obtuse mandibular prognathism and upper lip protrusion, and smaller nasolabial angle than females

Surgical outcome in patients with MRI-negative, PET-positive temporal lobe epilepsy

AbstractPurposeThe purpose of this study was to determine the long-term surgical outcomes of magnetic resonance imaging (MRI)-negative, fluorodeoxyglucose positron emission tomography (FDG-PET)-positive patients with temporal lobe epilepsy (TLE) and compare them with those of patients with mesial temporal sclerosis (MTS).MethodsOne hundred forty-one patients with TLE who underwent anterior temporal lobectomy were included in the study. The surgical outcomes of 24 patients with unilateral temporal hypometabolism on FDG-PET without an epileptogenic lesion on MRI were compared with that of patients with unilateral temporal hypometabolism on FDG-PET with MTS on MRI (n=117). The outcomes were compared using Engel's classification at 2 years after surgery. Clinical characteristics, unilateral interictal epileptiform discharges (IEDs), histopathological data and operation side were considered as probable prognostic factors.ResultsClass I surgical outcomes were similar in MRI-negative patients and the patients with MTS on MRI (seizure-free rate at postoperative 2 years was 79.2% and 82% in the MRI-negative and MTS groups, respectively). In univariate analysis, history of febrile convulsions, presence of unilateral IEDs and left temporal localization were found to be significantly associated with seizure free outcome. Multivariate analysis revealed that independent predictors of a good outcome were history of febrile convulsions and presence of unilateral IEDs.ConclusionOur results suggest that epilepsy surgery outcomes of MRI-negative, PET positive patients are similar to those of patients with MTS. This finding may aid in the selection of best candidates for epilepsy surgery

Trends and determinants of quality of life and self-rated health in the course of medical education among medical students

The aim of this study is to determine the change in the self-rated health and quality of life of students of a school of medicine during the course of their education and the predictive factors of health and quality of life such as socioeconomic factors, health status and healthy lifestyle, social relationships and social support, and academic burden. The study is a cross-sectional study that aimed to reach the entire registered students of Manisa Celal Bayar University School of Medicine in 2016-2017. Dependent variables in this study are the overall quality of life, self-rated health and annual self- rated health transition About 10.1% of the students stated their overall quality of life as poor or very poor whereas nearly 10.9% were dissatisfied about their health and 20.3 % of them stated their current health as worse than the previous year. There is a linear trend in a year in medical school in terms of quality of life. The logistic regression Model suggested that having a non-depressed mood is the best predictor of a better quality of life. Lower BMI, being healthy, taking care of their health and having a nuclear family are found the most important variables that affect self-rated health positively. The final term students (interns) perceived the worse overall quality of life than the first and second-year students. Additionally, the majority of the 3rd, 4th, and 5th term students reported their health worse than the previous year. These facts in self-rated health and QOL may be regarded as pieces of evidence that may lead the university authorities to take measures especially in clinical terms of medical education. [Med-Science 2020; 9(1.000): 118-27

Evaluation of the relationship between viral load and biochemical parameters in Covid-19 patients

In this study, we aimed to investigate the relationship between the viral load detected by PCR and the biochemical and demographic data of patients who were admitted to our hospital and positive for SARS-CoV-2 infection. Data from 132 laboratory-confirmed adult patients were retrospectively analyzed. COVID-19 patients were classified in different groups as pneumonia-non pneumonia and symptomatic- asymptomatic patients. In all, 77.2% patients were symptomatic and 39.4% had pneumonia. The most common laboratory abnormalities of all patients were elevated C-reactive protein (CRP), D-dimer, Fibrinogen and Neutrophil/lymphocyte ratio (NLR). Statistically significant differences (p &lt; 0.05) were found between the symptomatic and asymptomatic groups regarding CRP, NLR, Prothrombin Time (PT), international normalized ratio (INR), D-dimer and Fibrinogen. Additionally of these parameters significantly higher aspartate amino-transferase (AST), blood urea nitrogen (BUN), creatinine and lactate dehydrogenase (LDH) observed in pneumonia group compared to non-pneumonia group. The cycle threshold (Ct) values in all patients were 32.42 ± 6.03 and there were no significant differences in Ct values between the groups. There was a negatively significant correlation between Ct and blood urea nitrogen (BUN) (r=-0,205, P=0.019). Abnormalities of several hematologic and biochemical biomarkers were associated with SARSCoV-2 infection and disease severity. To investigate the association with disease severity and viral load, quantitative PCR results would be more accurate than semi-quantitative Ct results. [Med-Science 2021; 10(2.000): 469-73

A Comparative Study on Monomer Elution and Cytotoxicity of Different Adhesive Restoration Materials

This study evaluated monomer release and cytotoxicity of different adhesive restoration materials used for dental restorations. The extracts (1, 2, and 7days) of three types of adhesive dental restoration materials, [Quixfill (QF), Silorane Restorative (SR), and Ketac N 100 Restorative (KR)], and the adhesive resins, [XP Bond (XP), Silorane Primer (SP), Ketac N 100 Primer (KP), and Silorane Bond (SB)] were analyzed using high performance liquid chromatography/mass spectrometry (HPLC-MS). The cytotoxicity levels were determined at different time points (24, 48, and 72h) of cell culture using 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H tetrazolium bromide (MTT) assay. All adhesive resin materials showed monomer release at varying amounts with the highest release after 7days. The lowest amount of release was observed in QF and the highest with KP. Bis-Phenol A (BPA) was not detected in SP and KR that contain bisphenol-A diglycidyl ether dimethacrylate (bis-GMA). Decamethylpenthasiloxane (D5) was not eluted from SR. Except for SR and QF, all other adhesive restoration materials showed different degrees of toxicity along with different monomer release kinetics. The correlation between the monomer release and cytotoxicity of the materials indicated that the cytotoxicity of the materials increased with the monomer release (Spearman's rho correlation coefficient - r). The correlation after 48h was statistically significant (r=-0.342, p=0.017).Wo

The Giant Infantile Fibrosarcoma of Fetal Oropharynx and Anterior Neck

Introduction Infantile fibrosarcoma (IFS) usually arises in the extremities during the first 12 months of life and responds well to surgery. It is unusual in the oropharynx or the prenatal period.Case report:A giant solid mass was first detected in the oropharynx and anterior neck at 24 weeks of gestation by ultrasound and fetal MRI. An EXIT procedure with intrapartum intubation with appropriate supportive therapy was successful. The diagnosis of IFS was made postpartum, and the lesion responded to neoadjuvant chemotherapy.Conclusion:IFS may arise as early as 24 weeks of gestation. In this case, an EXIT procedure allowed postpartum diagnosis with subsequent treatment