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    1113 research outputs found

    Antioxidative activity and phytochemical composition of dried apricot.

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    In this study, the phytosterol and vitamin values of apricot fruits, which had been dried with different methods, and the antioxidant activity against iron (II) chloride (FeCl2) and hydrogen peroxide (H2O2) induced in vitro hepatitis oxidation have been determined. In addition, antioxidant capacity of apricots was determined by using DPPH free radical. As a result, apricot extracts inhibited lipid peroxidation and protected amount of total protein. Additionally, DPPH free radical scavenging effect of the species showed a parallel increase in dose. We think that rich phytochemical compounds of apricot fruits (for example; phytosterols, flavonoids, polyphenols and vitamins) play a role in this effect.FUBAP165

    Evaluation of Antioxidant Properties, Elemental and Phenolic Contents Composition of Wild Nettle (Urtica Dioica L.) from Tunceli in Turkey

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    Evaluation of antioxidant properties, elemental and phenolic contents composition of wild nettle (Urtica dioica L.) from Tunceli in Turkey. (PMID:24199953) Abstract Citations Related Articles Data BioEntities External Links Yildirim NC 1 , Turkoglu S , Ince OK , Ince M Affiliations Cellular and Molecular Biology (Noisy-le-Grand, France) [03 Nov 2013, Suppl 59:OL1882-8] Type: Journal Article Abstract Wild nettle (Urtica dioica L.) types were sampled from different geographical regions in Tunceli (Turkey) to determine their mineral, vitamin, phenolic contents and their antioxidant properties. The total phenol varied from 37.419 ± 0.380 to 19.182 ± 1.00 mg of GAEs g(-1) of dry nettle. The highest radical scavenging effect was observed in Mazgirt parting of the ways 7.5 km with 33.70 ± 0.849 mg mL(-1). The highest reducing power was observed in the nettles from Mazgirt parting of the ways 7.5 km. Among the various macronutrients estimated in the plant samples, potassium was present in the highest quantity followed by calcium and phosphate. Kaempferol and resveratrol were not determined in some nettle samples but rutin levels were determined in all samples. Vitamin A concentrations were ranged between 13.64 ± 1.90 and 5.74 ± 1.00 (mg kg(-1) dry weight). These results show that Urtica dioica L. collected from Tunceli in Turkey could be considered as a natural alternative source for food, pharmacology and medicine sectors

    Öğretmenlerin Denetim Sürecine İlişkin Algılarının Denetim Modellerine Göre İncelenmesi

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    Bir taraftan insan ilişkilerini göz ardı eden ve kontrol odaklı olan klasik denetim yaklaşımı, diğer yandan işgörenlerin motivasyonunu ve dolayısıyla örgütün etkililiğini arttıran, çağdaş denetim yaklaşımlarının ülkemizde hangi düzeyde uygulandığı merak konusu olmuştur. Bu çalışma ile sınıf öğretmenlerinin mevcut denetim süreci ile olmasını istedikleri denetim sürecine ilişkin görüşleri metaforlar aracılığı ile belirlenmeye çalışılacaktır

    Changes in Plasma Nitric Oxide Levels During Migraine Initial and Attack Periods in Migraine Patients

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    The most important primary headaches are migraine. Migraine has a prevalence of 10% in the general population and its societal costs are high. The precise mechanisms underlying the pathophysiology of migraine are still elusive. Nitric oxide (NO) is believed to play a key role in migraine pathogenesis. In this study, we compared migraine patients with healthy controls by measuring plasma nitrite levels in order to investigate the effects of nitric oxide in migraine patients during headache free and attacks period. A total of 26 patients with migraine in headache free period and 24 patients with migraine in attack period participated in our study. Control group consisted of 24 healthy subjects. Plasma NO levels were measured spectrophotometrically. Plasma nitrite levels were found significantly higher than controls during headache free period (p < 0.05). By contrast, it was found significantly decreased in attack periods compared to headache free period. No significant change in plasma nitrite levels in migraine attacks period compared to controls was observed (p > 0.05). Plasma nitrite levels were not altered significantly after an attack in the patients with migraine. These results suggested that increased level of plasma NO during headache free period may play an important role in migraine pathogenesis

    Türkiye'de Okul Etkililiği Araştırmalarına Genel Bir Bakış

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    Çeşitli veritabanlarına “okul etkililiği” ve “etkili okul” anahtar kelimeleri yazıldığında karşılaşılan lisansüstü tezlerin ve makalelerin büyük çoğunluğunun 2000 yılından sonra üretildiği gözlenmektedir. Yapılan bu araştırmaların bütünsel olarak incelenmesi, benzerlik ve farklılıklarının ortaya konulması Türkiye’deki etkili okul araştırmalarına ve okul geliştirme çalışmalarına önemli katkılar sağlayabilir. Bu araştırmada Türkiye’de yapılan okul etkililiği araştırmalarını amaç, kapsam, metodoloji ve sonuçlar bakımından incelemek hedeflenmiştir

    Effect of dietary n 3 series fatty acids on sperm production in the freshwater crayfish Astacus leptodactylus Eschscholtz Astacidae

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    The objective of the present work was to evaluate the effects of three different rates of long chain n-3 polyunsaturated fatty acid (LC n-3 PUFA) on the sperm number of Astacus leptodactylus. The experiment was carried out with the four following treatments: control group (not supplemented LC n-3 PUFA), D1 (1 %), D2 (2 %) and D3 (3 %). The sperm number of A. leptodactylus was counted; the reproductive system was weighted; and the macroscopical analysis of the testes and vasa deferentia (DVD) were conducted. In addition, gonado-somatic index (GI) and testes index (TI) were also calculated. The results showed that there was a significant difference between the crayfish fed LC n-3 PUFA supplemented diets (D1, D2, D3) and control in mean sperm number (P 0.05), but there was not a significant difference in the TI of the crayfish fed control, D1, D2 and D3 (P > 0.05). In conclusion, diets containing different levels of LC n-3 PUFA significantly increase the sperm number of A. leptodactylus, and they are crucial for the production of higher number of sperm in this species

    Elimination of Radiation Damping Effects from NMR Relaxation Curves of H2O D2O Mixtures Containing Protein and Ions

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    In this work the T1 and T2 curves of H2O/D2O mixtures were obtained for several fractions of H2O and also for different amounts of albumin and manganese. The experiments were carried out with a 400 MHz proton NMR spectrometer. The T1 and the T2 curves were determined by the inversion recovery (IR) and Carr-Purcell-Meiboom-Gill (CPMG) sequences, respectively. The relaxation times in residual water and in a mixture with 0.05 ml H2O were found to be reliable either in the presence or in the absence of albumin. The mixtures containing 0.1 ml or higher H2O suffer from radiation damping (RD). RD was removed gradually by addition of albumin or manganese. RD in the protein solution with 0.1 ml H2O was removed by adding 1 µg of manganese to one ml of solution. The data suggest that the relaxation times in H2O/D2O mixtures are measurable by conventional methods upon the addition of appropriate amounts of manganese and albumin

    The Violence Perception of Teachers and Students at Primary Schools

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    In parallel with the increasing number of acts of violence in recent years, it is seen that the effect of violence in schools is becoming growingly worrisome. The violence the students are exposed to affect them not only in their academic life but also throughout their life and may make irrecoverable traumas. With this study, it is endeavoured to identify how the acts of violence in the primary schools are perceived and conceptualized through the teachers and students’ opinions. In this study designed in line with the qualitative research approach, “the content analysis” has been conducted. Within this context, the openended question, “Violence is like ……… because ……..” has been asked to the participants. In order to identify the teachers and students’ perceptions on violence, the random sample has been used and the opinions of 222 teachers from the schools in the city centre and districts of Elazığ and 425 students attending at the 6th , 7 th and 8th grade at these school have been taken. According to the themes created following the analysis of metaphors, it is seen that the students have created the most metaphors under “destroying” theme and the least metaphors under “penalty” theme. Again, according to the themes, it is seen that the teachers have considered violence under “natural disaster” theme the most and under “warning” theme the least

    Tunceli Uzun Çayır Baraj Gölü’nde Yaşayan Kababurun (Chondrostoma regium Heckel, 1843) Balığının Et Verimlerinin İncelenmesi

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    Bu çalışmada, Tunceli il sınırları içinde bulunan Uzunçayır Baraj Gölü’nden yakalanan 100 adet kababurun balığı (Chondrostoma regium Heckel, 1843)’nın et verimleri ile ilgili çeşitli vücut organları arasındaki ilişkileri incelemiştir. Araştırma sonucunda, ortalama baş ağırlığı/vücut ağırlığı oranı % 10,43, iç organların ağırlığı/vücut ağırlığı % 10,51, yüzgeç ağırlığı/vücut ağırlığı % 1,74, deri ağırlığı/vücut ağırlığı % 7,43, omurga ağırlığı/vücut ağırlığı % 3,54 ve et randımanı % 66,15 olarak bulunmuştur. Kababurun populasyonunun I-VIII yaşları arasındaki et verimliliği, yüzde olarak sırasıyla 62,33; 67,94; 66,66; 67,87; 67,24; 67,48; 63,91; 65,74 şeklinde belirlenmiştir. Buna göre, yaşa bağlı olarak et verimliliğinin arttığı görülmektedir

    To read decision-making styles of public managers on levels of their self esteem …

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    İnsanlık tarihi boyunca karar verme eylemi hep var olmuş ve yaşamın her alanında etkili olarak insanların geleceklerini belirlemede büyük önem taşımaktadır. Yöneticiler karar verme eylemi bağlamında yönetim faaliyetlerini sürdürmüş ve yönetimin başarısı halkın yöneticiye olan güveni, sevgisi verdiği doğru kararlarla artmış yada aldığı yanlış kararlarla azalmış yok olmuştur. Buna göre yöneticiler karar verirken içerisinde bulundukları şartlar, tutum ve davranışlarını etkilediği gibi karar verme stilleri üzerinde de etkili olmaktadır. Burada yöneticinin karar verme stili onun başarısına veya başarısızlığına etki eder. Buda o kararın etkili olduğu toplumun geleceğini belirler. Bu araştırmamızda il yöneticilerinin karar vermede öz saygı ve karar verme stillerini tespit etmeye yönelik alan çalışmaları yapılmıştır. Bu çalışmanın örneklemi Elazığ ilinde görev yapan kamu il yöneticileri ve yardımcılarını kapsamaktadır. Araştırmanın sonucun da ulaşılan bazı sonuçlar şunlardır; Araştırmamızda yaş, medeni durum, cinsiyet mezun olunan bölüm gibi değişkenlere göre yönetici ve yardımcılarının karar vermede öz saygı ve karar verme stilleri bakımından aralarında anlamlı bir farklılık bulunmaz iken meslekteki çalışma yılı, yöneticilik yılı ve eğitim seviyesi değişkenlerine göre aralarında anlamlı birer farklılık olduğu gözlemlenmişidir. Bu bağlamda yönetici seçimi belirlenen kriterlere göre ne kadar sağlıklı olur ise, yönettikleri birimlerde, almış oldukları kararlarda o kadar sağlıklı olur. Buda dolayısıyla yönetimin etki ettiği toplumlara da sirayet eder. Böylece ideal olan yönetici tipi ve ideal olan toplum seviyesine ulaşılır. Anahtar kelimeler: Karar Verme

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