188 research outputs found
Predicting organizational trust level of school managers and teachers at elementary schools
AbstractThe main aim of this study is to determine which variable or variables are important for predicting organizational trust level at school managers (principals and vice principals) and teachers working and teaching at elementary schools of Ankara. 1239 managers and 8778 teachers from Ankara constitute the population of the study, which is a prediction study of correlation. There are 518 managers and 922 teachers from Ankara as samples. Two instruments, which are used for the purpose of this study, have been used for finding out the factors affecting trust and the features of trustee. Data have been interpreted by using multiple regression analysis on SPSS program. Tendency-to-trust as well as values and attitudes are essential predictors for managers and teachers from Ankara in order to explain the perception of trust
The Relationship Between Individual Innovation and Social Entrepreneurship Characteristics of Teacher Candidates
The-2002-Johannesburg-World-Summit and the 2005-2014 period were announced by the United Nations as a period of education focused on sustainable development. With this decision, the issue of sustainability has entered the agenda of education more precisely. Teachers contribute to sustainable development in social life as well as economic sustainable development. For sustainability, teachers need to be social entrepreneurs and innovators. Social entrepreneurship emphasizes sociality and entrepreneurship. Innovation involves innovation that creates value economically and socially. In the literature, there isnot any study aimed at determining the relationship between individual innovation characteristics and social entrepreneurship characteristics of prospective teachers. The aim of this study is to determine the relationship between the prospective teachers' individual innovation characteristics and social-entrepreneurship characteristics. The research was conducted on prospective teachers studying in the education faculties of private universities in Northern-Cyprus. In order to obtain data for the study, “Social Entrepreneurship Characteristics Scale of Prospective Teachers” and “Individual Innovation Scale” were used with permission. The data of the research was analyzed with SEM. IBM SPSS 23.0-program and AMOS-program were used while applying the data analysis process. As a result of the analysis, a strong relationship was found between the social-entrepreneurship traits of trainee teachers and individual innovation traits.
Keywords: Innovativeness; individual innovation; entrepreneurship; social entrepreneurship; teacher candidat
Gender effect on classroom management skills and competencies of teachers: A meta-analysis study
This study aims at determining the effect sizes of perceptions and opinions of teachers regarding classroom management skills and competencies according to their gender. 19 journal articles out of 28 journal articles specializing on teachers’ classroom management skills and competencies in Turkey downloaded from the national thesis archives of Higher Education Institution appropriate to inclusion criteria are included in the study. Also, moderators which could not be included to the assessment of primary researches as publication type, publication year, region where study conducted, educational level, school type, scale type, branches of the teachers and gender of the researcher moderators were analyzed as variables. As a result, according to fixed effects model (d=0,149) and random effects model (d=0,133) in favor of female teachers, effect size was statistically significant. Moderator analysis revealed that publication type (p=0,001), type of scale (either ready or improved) (p=0,049) and validity and reliability studies (p=0,008) were found as moderators. Furthermore, effect sizes of researches showed that gender awareness included a continuing tendency over the years. Moderator analysis showed that school type (p=0,054), educational level (p=0,477), region where research was conducted (p=0,075), teachers’ branches (p=0,257) and gender of the researchers were not considered as moderators. As a result, it is recommended not to use gender as an important independent variable in studies in relation to teachers’ perceptions and opinions on classroom management skills and competencies
Tarihten iki çehre:Enver Paşa ve Hitler
Taha Toros Arşivi, Dosya No: 62-Enver Paşa Aile ve Çevres
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The Need for an Implant Identification Card at Airport Security Check.
BACKGROUND: Joint replacement surgery is having an increasing demand as national healthcare systems confront an ever ageing population. Surgical complications associated with lower limb arthroplasty are well known but less investigation has been performed examining its effect on air travel, more specifically, unwanted and significant inconvenience caused to travelers going through airport security. METHODS: In lower limb arthroplasty clinics, 50 patients who met our selection criteria were given questionnaires. Ten airport security officers from 4 international airports (London Stansted, London Gatwick, London Heathrow, and Amsterdam Schiphol International Airport) were also given a separate questionnaire. The opinion of the Civil Aviation Authority was also sought. RESULTS: All 50 patients (mean age, 70.4 years; range, 55 to 84 years) who were presenting in lower limb arthroplasty clinics and who met our selection criteria volunteered to enter the study. Twenty-eight of these patients were female (mean age, 69.1 years; range, 55 to 84 years) and 22 were male (mean age, 71.2 years; range, 58 to 81 years). Of the patients, 14% stated that their joint replacements did not set off the airport security alarm. Responses were received from 10 airport security officers as well. Six airport security officers were male and 4 were female. All of the airport officers were aware of some form of implant identification card with 90% stating that these were useful to them at airport security. Eight-four percent of the patients stated that an implant identification card outlining what joint replacement they possessed and when this had been done would be very useful. Sixteen percent of the patients did not think a card would be beneficial since all of them had set off the airport alarm system only once or less in their lifetime. CONCLUSIONS: It is the opinion of airport security officers and patients that joint replacement implant identification cards streamline airport security checks and decrease the need for more invasive searches at airport security
Peripheral blood derived mononuclear cells enhance osteoarthritic human chondrocyte migration.
INTRODUCTION: A major problem in cartilage repair is the lack of chondrogenic cells migrating from healthy tissue into defects. Cartilage is essentially avascular and therefore its healing is not considered to involve mononuclear cells. Peripheral blood derived mononuclear cells (PBMC) offer a readily available autologous cell source for clinical use and therefore this study was designed to evaluate the effects of PBMCs on chondrocytes and cartilage. METHODS: Human primary chondrocytes and cartilage tissue explants were taken from patients undergoing total knee replacement (n = 17). Peripheral blood samples were obtained from healthy volunteers (n = 12) and mononuclear cells were isolated by density-gradient centrifugation. Cell migration and chemokinetic potential were measured using a scratch assay, xCELLigence and CyQuant assay. PCR array and quantitative PCR was used to evaluate mRNA expression of 87 cell motility and/or chondrogenic genes. RESULTS: The chondrocyte migration rate was 2.6 times higher at 3 hour time point (p < 0.0001) and total number of migrating chondrocytes was 9.7 times higher (p < 0.0001) after three day indirect PBMC stimulus and 8.2 times higher (p < 0.0001) after three day direct co-culture with PBMCs. A cartilage explant model confirmed that PBMCs also exert a chemokinetic role on ex vivo tissue. PBMC stimulation was found to significantly upregulate the mRNA levels of 2 chondrogenic genes; collagen type II (COL2A1 600-fold, p < 0.0001) and SRY box 9 (SOX9 30-fold, p < 0.0001) and the mRNA levels of 7 genes central in cell motility and migration were differentially regulated by 24h PBMC stimulation. CONCLUSION: The results support the concept that PBMC treatment enhances chondrocyte migration without suppressing the chondrogenic phenotype possibly via mechanistic pathways involving MMP9 and IGF1. In the future, peripheral blood mononuclear cells could be used as an autologous point-ofcare treatment to attract native chondrocytes from the diseased tissue to aid in cartilage repair.The authors would like to kindly acknowledge the PhD studentship from John Insall Foundation US and thank Dr. Nigel Loveridge for his statistical expertise. Dr. John Wardale acknowledges funding from the Technology Strategy Board and OrthoMimetics and Dr. Roger Brooks acknowledges funding from the National Institute for Health Research.This is the final version of the article. It first appeared from BioMed Central via http://dx.doi.org/10.1186/s13075-015-0709-
POTASYUM GüBRELEMES İNİN HİPOESTES Hypoestes sanguinolenta B İTKİSİNİN GELİŞİMİNE ETKISI VE POTASYUM GEREKS İNİMİNİN BELİRLENMESİ
Serada, değişik oranlarda potasyum içeren besin çözeltisiyle perlit doldurulmu ş plastik saksılarda Hipoestes Hypoestes sanguinolenta bitkisi yeti ştirilerek, bitkinin tepe ve kök boyu, ya ş ve kuru ağırlığı ile N, P, K kapsamı ve bunlann al ı nım miktarları belirlenmiştir. Elde edilen sonuçlara göre; 100 ppm K düzeyine kadar besin çözeltisindeki K konsantrasyon artt ıkça bitkinin tepe ve kök geli ş imi ile boyları da artmış ve 100 ppm K düzeyinden sonra olumsuz etkilenmi ştir. Bitkinin mineral bileşimi de buna benzer değişim göstermiştir. Tepe ve kök boylar ı sı rası yla kontrolde 15.9 cm den 100 ppm K düzeyinde 43.4 cm ve 16.1 cm den 24.3 cm ye yükselerek s ırasıyla yaklaşık 3 ve 1.5 kat artış göstermi şlerdir. Aynı K düzeylerinde tepe ve kök yaş ve kuru ağı rlıkları ise sırası yla 3.17-18.96; 0.49-2.49; 1.92-6.19; 0.16-0.50 g/saks ı olarak gerçekleşmiştir. Tepe ve kökün P kapsam ı ve P al ımı ile K alımı l00 ppm K düzeyine kadar art ıp sonra azalırken, bitkinin K kapsamı tüm K düzeylerinde artmıştır
Human osteoblasts obtained from distinct periarticular sites demonstrate differences in biological function in vitro.
AIMS: Accumulated evidence indicates that local cell origins may ingrain differences in the phenotypic activity of human osteoblasts. We hypothesized that these differences may also exist in osteoblasts harvested from the same bone type at periarticular sites, including those adjacent to the fixation sites for total joint implant components. METHODS: Human osteoblasts were obtained from the acetabulum and femoral neck of seven patients undergoing total hip arthroplasty (THA) and from the femoral and tibial cuts of six patients undergoing total knee arthroplasty (TKA). Osteoblasts were extracted from the usually discarded bone via enzyme digestion, characterized by flow cytometry, and cultured to passage three before measurement of metabolic activity, collagen production, alkaline phosphatase (ALP) expression, and mineralization. RESULTS: Osteoblasts from the acetabulum showed lower proliferation (p = 0.034), cumulative collagen release (p < 0.001), and ALP expression (p = 0.009), and produced less mineral (p = 0.006) than those from the femoral neck. Osteoblasts from the tibia produced significantly less collagen (p = 0.021) and showed lower ALP expression than those from the distal femur. CONCLUSION: We have demonstrated for the first time an anatomical regional variation in the biological behaviours of osteoblasts on either side of the hip and knee joint. The lower osteoblast proliferation, matrix production, and mineralization from the acetabulum compared to those from the proximal femur may be reflected in differences in bone formation and implant fixation at these sites. Cite this article: Bone Joint Res 2021;10(9):611-618
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