76 research outputs found

    Relativistic Electrons in Electric Discharges

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    Eğitimde Sosyal Adalet Liderliği ile Okul Aidiyet Duygusu Arasındaki İlişki: Kanonik Korelasyon Analizi

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    The purpose of this research was to examine the relationship between the high school students' perceptions of their school principals' social justice leadership and their sense of school belonging. The sample of the research consists of 264 students studying at high schools in Denizli and Manisa, two medium-sized cities in the Aegean Region. “Social Justice Leadership Scale (SJLS)” developed by Özdemir and Kütküt (2015) and “School Belonging Scale (SBS)” developed by Goodenow (1993) and adapted into Turkish by Sarı (2013) were used for data collection. As a result of the research, which employs the correlational survey model, it was determined that high school students felt a moderate level of school belonging and had a moderate perception of school principals' social justice leadership. As a result of the canonical correlation analysis, it was determined that the school belonging, and social justice leadership data sets shared a variance of approximately 60%. It has been determined that there is a positive relationship between the variables of support, participation and critical consciousness in the social justice leadership data set and the sense of belonging and sense of rejection variables in the sense of school belonging data set.Ortaöğretim kurumlarında öğrenim gören öğrencilerin okul müdürlerinin, sosyal adalet liderliğine ilişkin algıları ile okul aidiyet duyguları arasındaki ilişkininin incelenmesi bu araştırmanın amacını oluşturmaktadır. İlişkisel tarama modelinin kullanıldığı araştırmanın örneklemi, Ege Bölgesi'nde bulunan orta ölçekli iki şehir olan Denizli ve Manisa illerindeki ortaöğretim kurumlarında öğrenim gören 264 öğrenciden oluşmaktadır. Araştırmada veri toplama aracı olarak Özdemir ve Kütküt (2015) tarafından geliştirilen “Sosyal Adalet Liderliği Ölçeği (SALÖ)” ve Goodenow (1993) tarafından geliştirilen ve Türkçe uyarlaması Sarı (2013) tarafından yapılan “Okul Aidiyet Duygusu Ölçeği” kullanılmıştır. Araştırma sonucunda, ortaöğretim kurumunda öğrenim gören öğrencilerin algılarına göre, orta düzeyde okul aidiyeti hissettikleri ve okul müdürlerinin sosyal adalet liderliğine yönelik algılarının orta düzeyde olduğu belirlenmiştir. Kanonik korelasyon analizi sonucunda, okul aidiyeti duygusu ve sosyal adalet liderliği veri setlerinin yaklaşık %60’lık bir varyans paylaştıkları belirlenmiştir. Bununla birlikte, sosyal adalet liderliği veri setinde yer alan destek, katılım ve eleştirel bilinç değişkenleri ve okul aidiyeti duygusu veri setinde yer alan aidiyet duygusu ve reddedilme duygusu değişkenleri arasında pozitif yönlü bir ilişki olduğu tespit edilmiştir

    Amyloid inspired self-assembled peptide nanofibers

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    Amyloid peptides are important components in many degenerative diseases as well as in maintaining cellular metabolism. Their unique stable structure provides new insights in developing new materials. Designing bioinspired self-assembling peptides is essential to generate new forms of hierarchical nanostructures. Here we present oppositely charged amyloid inspired peptides (AIPs), which rapidly self-assemble into nanofibers at pH 7 upon mixing in water caused by noncovalent interactions. Mechanical properties of the gels formed by self-assembled AIP nanofibers were analyzed with oscillatory rheology. AIP gels exhibited strong mechanical characteristics superior to gels formed by self-assembly of previously reported synthetic short peptides. Rheological studies of gels composed of oppositely charged mixed AIP molecules (AIP-1 + 2) revealed superior mechanical stability compared to individual peptide networks (AIP-1 and AIP-2) formed by neutralization of net charges through pH change. Adhesion and elasticity properties of AIP mixed nanofibers and charge neutralized AIP-1, AIP-2 nanofibers were analyzed by high resolution force-distance mapping using atomic force microscopy (AFM). Nanomechanical characterization of self-assembled AIP-1 + 2, AIP-1, and AIP-2 nanofibers also confirmed macroscopic rheology results, and mechanical stability of AIP mixed nanofibers was higher compared to individual AIP-1 and AIP-2 nanofibers self-assembled at acidic and basic pH, respectively. Experimental results were supported with molecular dynamics simulations by considering potential noncovalent interactions between the amino acid residues and possible aggregate forms. In addition, HUVEC cells were cultured on AIP mixed nanofibers at pH 7 and biocompatibility and collagen mimetic scaffold properties of the nanofibrous system were observed. Encapsulation of a zwitterionic dye (rhodamine B) within AIP nanofiber network was accomplished at physiological conditions to demonstrate that this network can be utilized for inclusion of soluble factors as a scaffold for cell culture studies. © 2012 American Chemical Society

    Üniversitelerin örgütsel yapı özellikleri ile akademisyenlerin örgütsel sosyalleşme düzeyleri arasındaki ilişki

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    Bu araştırmada, Türkiye’deki kamu üniversitelerinde görev yapmakta olan akademisyenlerin algılarına göre, görev yaptıkları üniversitenin mevcut örgütsel yapı özellikleri ile akademisyenlerin örgütsel sosyalleşme düzeyleri arasındaki ilişkinin incelenmesi amaçlanmaktadır. Bu doğrultuda bazı demografik değişkenlerin; akademisyenlerin, üniversitelerin örgütsel yapı özelliklerine ilişkin algıları ve örgütsel sosyalleşme düzeyleri üzerinde anlamlı bir farklılaşmaya sebep olup olmadığının incelenmesi de araştırmanın önemli diğer amacını oluşturmaktadır. İlişkisel tarama modelinin kullanıldığı bu araştırmanın örneklemi, Türkiye’de bulunan ve tabakalı örnekleme yöntemi ile belirlenen 13 kamu üniversitesinde görev yapan toplam 577 akademisyenden oluşmaktadır. Araştırmada veri toplama aracı olarak Erol ve Ordu (2018) tarafından geliştirilen “Örgütsel Yapı Ölçeği Üniversite Versiyonu” ve Taormina (1994) tarafından geliştirilen ve yine Taormina (2004) tarafından güncellenen, Türkçe’ye uyarlaması Balcı, Baltacı, Fidan, Cereci ve Acar (2012) tarafından yapılan “Örgütsel Sosyalleşme Ölçeği” kullanılmıştır. Akademisyenlerin örgütsel yapı özelliklerinden karmaşıklık boyutuna ilişkin algı düzeyleri ile örgütsel sosyalleşmeye ilişkin algı düzeyleri arasında pozitif yönlü, orta düzeyde anlamlı bir ilişki olduğu; merkezileşme boyutuna ilişkin algı düzeyleri ile örgütsel sosyalleşmeye ilişkin algı düzeyleri arasında negatif yönlü, orta düzeyde anlamlı bir ilişki olduğu; formalleşme ve tabakalaşma boyutlarına ilişkin algı düzeyleri ile örgütsel sosyalleşmeye ilişkin algı düzeyleri arasında pozitif yönlü, düşük düzeyde anlamlı bir ilişki olduğu tespit edilmiştir. Örgütsel yapı özellikleri olan karmaşıklık, merkezileşme, formalleşme ve tabakalaşma boyutlarının, örgütsel sosyalleşmenin anlamlı birer yordayıcısı olduğu sonucuna ulaşılmıştırIn this research, it is aimed to examine the relationship between the current organizational structure of the university in which academicians work and the level of organizational socialization of academicians according to the perceptions of academicians. In this regard, the examination whether some demographic variables cause a significant difference on academicians' perceptions about the organizational structure characteristics of universities and the level of organizational socialization of academicians or not is another significant purpose of the research. The sample of this research using relational survey model consists of 577 academics from 13 universities, which is selected by stratified sampling method. The data was collected by "Organizational Structure Scale-University Version" developed by Erol and Ordu (2018) and “Organizational Socialization Scale” developed and updated by Taormina (1994, 2004) and adapted to Turkish by Balci, Baltaci, Fidan, Cereci and Acar (2012). It has determined that there is a positive and moderately significant relationship between the perception of academicians about the complexity and organizational socialization; there is a negative, moderately significant relationship between the perceptions of academicians about the centralization and organizational socialization; there is a positive, low significant relationship between the perceptions of academicians about the formalization and organizational socialization; there is a positive, low significant relationship between the perceptions of academicians about the stratification and organizational socialization. It is concluded that the dimensions of complexity, centralization, formalization and stratification, which are organizational structure features, are significant predictors of organizational socialization

    The Relationship Between Social Justice Leadership in Education and School Belonging: Canonical Correlation Analysis

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    The purpose of this research was to examine the relationship between the high school students' perceptions of their school principals' social justice leadership and their sense of school belonging. The sample of the research consists of 264 students studying at high schools in Denizli and Manisa, two medium-sized cities in the Aegean Region. ???Social Justice Leadership Scale (SJLS)??? developed by ??zdemir and K??tk??t (2015) and ???School Belonging Scale (SBS)??? developed by Goodenow (1993) and adapted into Turkish by Sari (2013) were used for data collection. As a result of the research, which employs the correlational survey model, it was determined that high school students felt a moderate level of school belonging and had a moderate perception of school principals' social justice leadership. As a result of the canonical correlation analysis, it was determined that the school belonging, and social justice leadership data sets shared a variance of approximately 60%. It has been determined that there is a positive relationship between the variables of support, participation and critical consciousness in the social justice leadership data set and the sense of belonging and sense of rejection variables in the sense of school belonging data set

    The diversity of the genus Aricidea (Polychaeta: Paraonidae) from the Sea of Marmara, with descriptions of two new species and two new records for the Mediterranean fauna

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    This paper reports 13 Aricidea species from the Sea of Mannara. the Aricidea specimens were collected at 98 stations in the region in 2012 and 2013 from soft and hard substrata at depths ranging from 0 to 1200 in. Among the material, two new species, namely Aricidea (Acmira) katzmanni n. sp. and Aricidea (Acmira) pseudoassimilis n. sp., and 11 known species were discovered. Aricidea mirunekoa and A. bulbosa are new records for the Mediterranean fauna; A. (Acmira) annae and A. (Aricidea) wassi are new records for the Sea of Marmara. Aricidea (Acmira) katzmanni n. sp. is characterized by having a long, digitiform antenna; no notopodial papillae on the posterior part of the branchial region; and hook shaped modified neurochaetac with a strong hood and fragile arista. Aricidea (Acmira) pseudoassimilis n. sp. is characterized by having a short, digitiform antenna; interramal lobes between notopodia and neuropodia; hookshaped modified neurochaeta that gets subterminally thinner with a rounded tip. As A. (Strelzovia) bulbosa has been only previously reported from the Gulf of Suez (Red Sea), it could be a new alien species for the Sea of Marmara and Mediterranean Sca. Based on the characters that have been overlooked so far, the subspecies A. suecica meridionalis and A. capensis bansei were raised to species level, A. meridionalis n. stat. and A. bansei n. stat. the present paper reports the usage of ciliary bands and slits on the prostomium and body, swellings/ridges in the branchial region, and the shape and distribution of sense organs in the taxonomy of Aricidea. All species were described and figured.TUBITAK ProjectTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [111Y268]Authors are indebted to colleagues in the Benthology Laboratory for their help in collecting and sorting the benthic material; and to the crews of the R/V Yunus S for their help in collecting the material. We also thank to Dr. Pinar Sozer Bahadir (Ege University, MATAL) for help in the preparation of material for SEM photography, to Drs James A. Blake and Eduardo Lopez for critically reviewing the paper. This work is financially supported by the TUBITAK Project (No: 111Y268). This study is a part of MSc thesis of Deniz ERDOGAN-DERELI

    Paraonis fulgens (Annelida: Paraonidae), a new species record for the marine fauna of Turkey

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    WOS:000605750600009The present paper deals with the occurrence of Paraonis fulgens on the coast of Turkey. Three specimens of this species were found at 4 m on sandy mud bottom in Iskenderun Bay, north-east Levantine Sea. The morphological and distributional features of the species were given. The present study firstly described a ventral lobe on segments in the family Paraonidae

    The genus Paradoneis (Annelida: Paraonidae) from the Sea of Marmara, with descriptions of two new species

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    ERDOGAN-DERELI, Deniz/0000-0003-2754-8378WOS: 000490707000002PubMed: 31719468The present study deals with the diversity of the genus Paradoneis (Annelida: Paraonidae) from the Sea of Marmara. Examination of materials collected from various soft and hard substrata from depths between 10 and 1200 m in the region revealed the presence of four species, among which one was already known from the region (P. ilvana), one was a new record for the Sea of Marmara (P. armata) and other two (P. heterochaeta n. sp. and P. longifurcata n. sp.) were new to science. Paradoneis heterochaeta n. sp. is characterized mainly by having a proportionately large size, by its pigmentation on the body, by bearing minute notopodial postchaetal lobes and by possessing two types of lyrate chaetae. Paradoneis longifurcata n. sp. is mainly characterized by having weakly jointed notopodial postchaetal lobes and lyrate chaetae with the long branch being up to 4.5 times longer than the short branch. All species found in the area are described and discussed.TUBITAK ProjectTurkiye Bilimsel ve Teknolojik Arastirma Kurumu (TUBITAK) [111Y268]Authors are indebted to colleagues in the Benthology Laboratory for their help in collecting and sorting the benthic material; and to the crews of the R/V Yunus S for their help in collecting the material. We also thankful to two referees and the editor of Zootaxa (Dr. Wagner Magalhaes) for their valuable suggestions on the manuscript. This work is financially supported by TUBITAK Project (No: 111Y268)
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