Creation of Spin-1/2 Particles in the Hyperboloid de Sitter Space-Time

In this work we solve Dirac equation by using the method of seperation of variables. Then we analyzed the particle creation process. To compute the density number of particles created Bogoliubov transformation technique is used.Comment: 5 pages, no figures, presented at the 1st Int. Hellenic&Turkish Phys. Con

Potential of cottonseed oil as fish oil replacer in European Sea Bass feed formulation

Triplicate groups of 20 European sea bass (35 g) were fed five diets in which the added lipid was 100% fish oil (FO), 40% (CSO40), 60% (CSO60), 80% (CSO80) and 100% (CSO100) refined cottonseed oil (CSO), for a period of 120 days. Overall fish growth, feed conversion ratio and protein utilization were unaffected by dietary treatment, but hepatosomatic and visceral fat indexes increased with increasing dietary CSO. Fillet fatty acid composition of total lipids reflected the fatty acids in the test diets. The monounsaturated fatty acids were significantly higher in fillet of fish fed diet FO, CSO40 and CSO60 compared to other treatments while saturated and polyunsaturated fatty acids (PUFA) were not affected by the dietary treatment. Some fatty acids (18:0, 18:1n-9, 20:5n-3 and 22:6n-3) were present in higher concentration in fillet lipid than in the CSO100 dietary lipid indicating accumulation in fillet relative to test diets. Retention of n-3 LC-PUFA within the fillet was increasingly inefficient among fish fed increasing levels of FO. Thus, this study suggests that CSO can be considered as a relatively effective substitute for fish oil in European sea bass (35 g) in terms of growth performances and feed efficiency as far as fish meal is present in the diet

Structural model calibration of RC structure with two-leaf cavity brick infill wall by deterministic approach

An adaptive solution for updating structural model of a RC structure with two-leaf cavity brick infill wall under flexible boundary problem is presented in this paper. The structure was simulated with Diana 9.4.4 finite element software. Next, an elastic foundation with interface elements was used to overcome this stiffness problem of the foundation. The validation of the structure was made with the optimization based modal updating using MATLAB. Five calibration types were performed and compared with experimental data.info:eu-repo/semantics/publishedVersio

Shakespeare in Animation

Shakespeare in Animatio

Chemical profiling and biological evaluation of Nepeta baytopii extracts and essential oil: An endemic plant from Turkey

Nepeta baytopii is a poorly studied, endemic Nepeta species (Lamiaceae) of Turkey. For the first time, the biological activities (antioxidant, enzyme inhibition, and cytotoxicity properties) of the hexane, ethyl acetate, methanol, water/methanol, and water extracts and essential oil prepared from N. baytopii aerial parts were assessed. Hydro-methanol (41.25 mg gallic acid equivalent (GAE)/g) and water extracts (50.30 mg GAE/g), respectively showed the highest radical scavenging (94.40 and 129.22 mg Trolox equivalent (TE)/g, for 2,2-diphenyl-1-picrylhydrazyl radical and 2,2-azinobis (3-ethylbenzothiazoline-6-sulfonic acid radical scavenging assays) and reducing (229.37 and 129.55 mg TE/g, for ferric-reducing antioxidant power and cupric-reducing antioxidant capacity assays) capacities in vitro. An interestingly high inhibition was observed for ethyl acetate extract against butyrylcholinesterase (10.85 mg galantamine equivalent/g). The methanol extract showed high cytotoxicity (31.7%) against HepG2 cells. Caryophyllene oxide was identified in high concentrations in the essential oil (39.3%). Luteolin and apigenin and their derivatives were identified from the methanol and water extracts. The results obtained from this study highlighted that the abundance of highly bioactive compounds from Nepeta baytopii ensures the multiple biological activities of the tested extracts, and this suggests a potential use in the pharmaceutical and nutraceutical fields, and therefore should be investigated further.info:eu-repo/semantics/publishedVersio

Munzur Nehri‘ndeki Salmo trutta macrostigma (Dumeril, 1858)‘nın bazı populasyon parametrelerinin incelenmesi

Bu tez çalışması, Munzur Nehri’nde yaşayan ve ekonomik değeri oldukça yüksek olan Salmo trutta macrostigma (Dumeril, 1858)’nın bazı populasyon parametrelerinin belirlenmesi amacıyla yapılmıştır. Araştırmada kullanılan toplam 165 adet balık örneği, olta, serpme ağı, uzatma ağı ve elektroşoker cihazı kullanılarak, Ocak-Aralık 2015 tarihleri arasında Munzur Nehri’nden temin edilmiştir. Laboratuar ortamında balıkların boy ve ağırlık ölçümleri yapıldıktan sonra pul materyali kullanılarak yaş tespitleri yapılmıştır. Bazı populasyon özellikleri standart metotlarla belirlenmiştir. Von Bertalanffy büyüme parametrelerinin belirlenmesi amacıyla FAO-ICLARM FISAT II paket programı kullanılmıştır. I-VIII yaş grupları arasında dağılım gösteren populasyonda dişi/erkek oranı 1:0,96 olarak tespit edilmiştir. Boy-ağırlık ilişkisini belirlemek amacıyla yapılan regresyon analizinde regresyon katsayısı (b) dişilerde 2,9854 (izometrik büyüme), erkeklerde 2,7251 (negatif allometrik büyüme) ve tüm bireylerde 2,8509 (negatif allometrik büyüme) olarak belirlenmiştir. İncelenen bireylerin total boy uzunlukları 12-36 cm, ağırlıkları ise 22,9-490 g arasında değişiklik göstermiştir. Populasyonun genelinde tüm yaş gruplarının kondisyon faktörü değerlerinin ortalaması 1,19 olarak tespit edilmiştir. En yüksek oransal büyüme (%31,41) II-III yaş grubu arasında gerçekleşmiştir. Populasyonun von Bertalanffy büyüme parametreleri dişilerde; L∞=55,8 cm, K=0,10 yıl-1, t0=-1,61 yıl, W∞=1949,6 g, erkeklerde; L∞=56,58 cm, K=0,08 yıl-1, t0=-2,06 yıl, W∞=1696,3 g ve tüm bireylerde; L∞=55,5 cm, K=0,09 yıl-1, t0=-1,89 yıl, W∞=1756,5 olarak belirlenmiştir. Farklı çalışmalardan elde edilen büyüme parametrelerin karşılaştırılmasında kullanılan “büyüme performans indeksi” (Munro’nun fi üssü, Φ') dişilerde 5,74, erkeklerde 5,55 ve populasyonun genelinde 5,62 olarak hesaplanmıştır

Seasonal variations of biochemical taste parameters in milks from conventional and environment-friendly organic farming

The aim of this study is to research the milk biochemical taste components in organic (ORG) and conventional (CON) systems for different season. In study, all data were investigated for all season of 2004. Milk fat levels in both groups for summer season were lower than any other season. Average milk fat values in ORG treatment were lower than the values of CON treatment in all season except winter period. Therefore, a decrease in fat percentage for organic milk can directly lead to taste loss. Similarly, total solid rates in conventional milks in spring period were more favorable than rates in organic milk for desired taste. However, the pH value in organic milk was more acceptable for required flavor in summer season

“Fatty Acids Profiles of Rainbow Trout (Oncorhynchus mykiss Walbaum, 1792), Fed with Zeolite (Clinoptilolite)”

In this Trial, the lipid contents and fatty acid compositions (% of total fatty acids) of rainbow trout fed with four different ratios of clinoptilolite were studied. The fatty acid compositions of fish in groups ranged from 26.81% to 27.93 % saturated fatty acids, 25.35–31.435 % monounsaturated and 32.99–40.185 % polyunsaturated. Among them, those occurring in the highest proportions were oleic acid (C18:1n9, 19.85-22.27 %), palmitic acid (C16:0, 15.60-16.56 %), linoleic acid (C18:2n6, 11.43-18.88 %), cis-4,7,10,13,16,19-docosahexaenoic acid (C22:6n3, 13.36-15.52 %), stearic acid (C18:0, 4.25-4.75 %), palmitoleic acid (C16:1, 3.53-4.59 %), cis-5,8,11,14,17-eicosapentaenoic acid (C20:5 n3, 3.11-3.39 %), and myristic acid (C14:0, 2.56-2.85 %). The findings demonstrated that fatty acid compositions of the groups depend on feed, age, environmental conditions, and effects of feed additives like clinoptilolite. In this respect, it demonstrated that clinoptilolite can be added to fish feed

Periodical Operations in Fish Cage Farms

Su ürünlerine olan talebin artması, bazı doğal balık stoklarının azalması ve balık yetiştiriciliğinin ekonomik açıdan önemi, kafeste balık üretimini cazip hâle getirmiştir. Kafeslerde balık yetiştiriciliğinde periyodik olarak yapılan operasyonlar çok önemli bir yer tutmaktadır. Bu operasyonların uygun bir şekilde yapılması, üretim başarısını önemli derecede etkilemektedir. Bu derleme çalışmasında, ağ kafes tesisinin kurulum aşamasından başlayarak, ağ kafes işletmelerinde yavru balığın temininden satışa kadar gerçekleşen yavru balık nakil yöntemleri, besleme uygulamaları, ağ değiştirme operasyonları ve kafes bağlama sisteminin kontrolü, balıklara yapılan aşı uygulamaları, tedavi uygulamaları, balıkların boylanması ve sayımı, balık kafeslerinin rotasyon uygulamaları, satış boyuna ulaşan balıkların hasatı, hasat edilen balıkların sınıflandırılması, paketlenmesi ve transferi konuları özetlenmiştir

The Scrutinising of Changes in the Aquaculture Supports

In the world, aquaculture is seen as the fastest growing and developing food production sector and however, in the near future, it is estimated that the rates of fisheries and aquaculture will be equalized. In 2015, the fisheries production of the world amounted to 170.345,641 tons (fisheries; 93,704,616 tons and aquaculture; 76.641,025 tons) according to the FAO records. The aquaculture in Turkey started in 1970s and its rate in total fisheries production has rapidly increased as of 2000. In our country, the amount of aquaculture, which was 79,943 tons in 2003, reached 253.395 tons in 2016. The aquaculture rate in the total production of our country has increased by more than 310%. As one of the most important reasons for this rate increase, it is seen to be providing some support policies with various incentive systems by the government for support and encourage the aquaculture in country. Directly product support for aquaculture farmers was started in 2003. According to the total capacity of the farms, total product and fry supports were provided. In 2008, the total capacity supported was limited to 2000 tons/year. However, in 2012, different tonnage application (whole unit price to 250 tons/year and ½ unit price from 251 to 500 tons/year) were brought to the total product support and the fry support was removed. At the same time, the processed product support was brought at the rate of twice the amount specified in the invoices of the total product. In the present, the support system is still continuing. The types of product support, prices, supported capacities and the expense criteria are applied annually by issuing the “Aquaculture Support Communiqués” in the Official Gazette