Sürdürülebilir Kalkınma Amaçları
Yazarlar
- Gul, Muhammet(74)
- Akkurt, Nevzat(39)
- Celik, Erkan(35)
- Serdar, Osman(35)
- Güler, Ömer(33)
- Kutlu, Banu(32)
- Paksoy, Mehmet Yavuz(32)
- Yucesan, Melih(31)
- Tekin, H.O.(30)
- Yildirim, Numan(30)
- Yildirim, Nuran Cikcikoglu(30)
- ALMisned, Ghada(28)
- Mete, Suleyman(26)
- Danabas, Durali(20)
- Ince, Muharrem(20)
- Serin, Faruk(20)
- Ates, Mehmet(19)
- Can, Erkan(19)
- Onat, Onur(18)
- Benzer, Fulya(17)
- Kocabaş, Mehmet(17)
- Tanyol, Mehtap(17)
- Kizak, Volkan(16)
- Alataş, Mevlüt(15)
- Aydin, Rahmi(15)
- Kahraman, Gökhan(15)
- Kilic, G.(15)
- Polat, Alper(15)
- Susam, Selim Orhun(15)
- Xu, Qian(15)
- Aslan, Naim(14)
- Guler, Omer(14)
- Gürler, Nedim(14)
- Karatay, Gülnaz(14)
- Utku, Anıl(14)
- Yildirim, N. C.(14)
- Özkul, İskender(14)
- Demirol, Ferhat(13)
- Erguven, Gokhan Onder(13)
- Firat, Erhan(13)
Yayınlar
- MakaleYalnız künye2011Scopus SJRQ3Synthesis and Structural Characterization of Bis(2-amino-1,3,4-thiadiazolyl)methane Complexes
Adiguzel, Ragip; Ergin, Zuhal; Sekerci, Memet; Tascioglu, Senay
In this study, some transition metal complexes of the bis(2-amino-1,3,4-thiadiazolyl)methane (L) derived from the condensation of malonic acid and thiosemicarbazide, have been synthesized and characterized by IR, H-1-NMR spectra, elemental analyses, magnetic susceptibility and thermogravimetry-differential thermal analysis (TGA-DTA). Coordination numbers of monomeric, Ni(II), Zn(II), and Cd(II) complexes and dimeric Cu(II) complex were found to be four, five, six, and five, respectively. According to the elemental analyses and mass spectra data, the following complex formulas were proposed;[Ni-2(L)(SO4)(2)(H2O)(2)]center dot CH3OH center dot 0.5H(2)O, [Cu(L)(SO4)(H2O)](2)DMF center dot 3H(2)O, [Zn(L)NO3 center dot H2O]center dot NO3 center dot DMF, and [Cd(L)(2)(NO3)H2O]NO3 center dot DMF. Ni(II) and Cu(II) complexes were paramagnetic. Ni(II), Cu(II), and Cd(II) complexes were proposed to be tetrahedral/square planar, square pyramidal, and octahedral structure, respectively. Zn(II) complex is five coordinated. The molar conductance data revealed that Zn((II), and Cd(II) complexes were 1:1 electrolytes(ionic). Ni(II), and Cu(II) complexes were non-electrolytes.
AtıfWoS6
İncele - MakaleYalnız künye2011Scopus SJRQ2BENEFICIAL EFFECTS OF GRAPE SEED EXTRACT AGAINST CISPLATIN-INDUCED TESTICULER DAMAGE IN RABBITS
Yildirim, Nuran Cikcikoglu; Kandemir, Fatih Mehmet; Benzer, Fulya
Biological compounds with antioxidant properties may contribute to the protection of cells and tissues against deleterious effects of reactive oxygen species (ROS) and other free radicals induced by cisplatin. This study was performed to investigate the possible protective role of antioxidant treatment with grape seed extract (GSE) on cisplatin-induced testes oxidant injury using biochemical approaches. The degree of protection produced by GSE was evaluated by determining the level of malondialdehyde (MDA) and glutathione (GSH), the activity of catalase (CAT), glutathione peroxidase (GSH-Px), were estimated from testes of rabbits. Male New Zealand white rabbits were divided into 3 groups (n=6): 1-Control group(1 ml saline. i.p) 2-Cisplatin group (a single dose of cisplatin (5 mg/kg, i.p) 3-A single dose of cisplatin (5 mg/kg, i.p) + GSE (250 mg/kg/day, i.p) for 6 days. MDA level were significantly higher when compared to Control (p < 0.05). In Cisplatin+grapes groups MDA levels were found significantly lower than cisplatin group (p < 0.05). GSH levels were decreased with cisplatin compared to control but in case of cisplatin+ GSE it increased (p < 0.05). In treated rabbits, the activity of CAT and GSH-Px was decreased in cisplatin and cisplatin+ GSE groups compared to control (p < 0.001). These results indicate that the antioxidant GSE might have a protective effect against cisplatin-induced testiculer damage and oxidative stress in rabbit.
AtıfWoS12İncele - MakaleYalnız künye2011Scopus SJRQ3DETECTION OF YERSINIA RUCKERI BY POLYMERASE CHAIN REACTION (PCR) IN INFECTED RAINBOW TROUT (ONCORHYNCHUS MYKISS WALBAUM 1792)
Seker, E.; Karahan, M.; Sarieyyüpoglu, M.; Çetinkaya, B.
This study was conducted to induce experimental infection in rainbow trout with Y. ruckeri, the causative agent of ERM disease and progress of the disease was then monitored over the time period. Application of PCR for early and accurate diagnosis of infection was also investigated. Total 100 fish were allocated to four experimental and a control group each containing 20 fish. There were 20 aquaria and five fish were housed in each aquaria. There were 4 replicates for each group. Fish, at an average weight of 75 g, were injected intramuscularly with 0.1 ml dilutions of Y. ruckeri at various doses (4x10(8), 1x10(8), 4x10(4) and 1x10(4) per ml) in the experimental groups. Blood samples were collected from fish that showed typical signs of the disease. DNA's extracted from blood samples were subjected to PCR amplification based upon a pair of Y. ruckeri specific primers. Following agarose gel electrophoresis of the PCR products, positive bands with the molecular size of approximately 589 bp which were considered indicative for identification as Y. ruckeri were observed. In addition, isolation and identification of Y. ruckeri from various internal organs of infected fish were made by conventional culture method. The results suggested that early diagnosis of ERM disease can be made while fish are alive and diseased fish can be isolated and treated accordingly which will help decrease economic losses.
AtıfWoS3İncele - MakaleYalnız künye2011Scopus SJRQ1Petrology and petrogenesis of carbonatitic rocks in syenites from central Anatolia, Turkey
Cooper, Alan F.; Boztug, Durmus; Palin, J. Michael; Martin, Candace E.; Numata, Mihoko
The late Cretaceous A-type Kara double dagger ayA +/- r pluton in Central Anatolia, Turkey, intrudes and entrains xenoliths of Palaeozoic limestone. Carbonatitic magmatic rocks within the syenite have been previously interpreted (Schuiling in Nature, 192:1280, 1961) to result from metasomatic alteration and syntectic melting of marble. Carbonatites and associated calcite-syenites exhibit mineralogical characteristics (Ab-rich plagioclase, Ba-rich K-feldspar, low-Mg# biotite) that are petrogenetically more evolved than the host syenitic suite. Geochemically, carbonate-rich magmatic rocks are greatly enriched in Sr, Ba, Th, and REE and have higher LREE/HREE ratios than either syenites or marbles. In terms of O-C-Sr-Pb isotope ratios, the carbonatite/calcite-syenite suite form a consistent and geochemically coherent group that is distinct from the marble country rock and xenolith population, but similar to some of the syenitic, and particularly the nepheline syenite components of the Kara double dagger ayA +/- r pluton. Other silicate magmatic rocks are geochemically, isotopically, and geochronologically different, suggesting the pluton is composite. Overall, the mineralogical and geochemical characteristics of the carbonatites are incompatible with binary mixing of syenite and marble but are consistent with derivation of carbonatite from petrogenetically evolved foid syenite. Carbonate-silicate rock types have modal variations compatible with an origin by fractional crystallisation, rather than by liquid immiscibility.
AtıfWoS17OpenAlex17İncele - MakaleYalnız künye2011Scopus SJRQ4Investigations on the growth kinetics of hantzschia amphioxys homa lagoon by izmir bay (Aegean Sea)
Kutlu, Banu; Buyukisik, Baha
zschia amphiarys were investigated under continuous-light period and batch culture conditions. The optimum temperature and light intensities were found as 18 degrees C and 52 mu mol/m(2)s (saturasyon light), respectively. mu(max) and K-s values estimated for each nutrient were obtained as follows: ammonia for 1.528 day(-1) 2.959 mu g-at- NH4+-N/L, nitrate 1.22 day(-1), 7.01 mu g-at NO3- -N/L, phosphate 1.767 and 1.172 day(-1) 5.07 and 0.460 mu g-at PO4-(3)-P/L, silicate 1.141 day(-1) and 0,499 mu g-at Si/L. Carrying capacity values estimated for each nutrients were obtained as follows: nitrate 113,7 mu g chl a/L, 190.11 phosphate 113.7 mu g chl a/L, 1.798. Nitrogen limiting nutrients was found as in this study.
AtıfWoS2İncele - MakaleYalnız künye2011Scopus SJRQ2Immunostimulating Effect of Levamisole on Spleen and Head-Kidney Leucocytes of Rainbow trout (Oncorhynchus mykiss, Walbaum 1792)
Seker, Engin; Ispir, Unal; Dörücü, Mustafa
An in vitro cultivation method for spleen and head kidney organ section were used to investigate the effects of levamisole on the immune response. After 10 days of culture with 10 mu g/ml, 50 mu g/ml and 100 mu g/ml or no levamisole in the culture media, the non specific defense reaction were measured by glass-adherent NBT (nitroblue tetrazolium) positive cells activation and phagocytic activity. Elevation in phagocytic activity was found for 10 mu g/ml and 50 mu g/ml levels of levamisole (P < 0.001), but no differences were found at levels of phagocytic activity in between 100 mu g/ml levamisole groups and control groups (P > 0.05). In the spleen and head kidney leucocytes, increased response to levamisole was shawn for all doses in the glass-adherent NBT positive cells activation.
AtıfWoS7İncele - MakaleYalnız künye2010Stratejik ittifaklarda risk faktörleri ve risk yönetimi
Çakınberk, Arzu
Stratejik ittifak anlaşmaları son yirmi yılda artmıştır. Bu anlaşmalar firmanın rekabet seviyesini geliştirmede önemli olmaya başlamışlardır. Bu kadar çekici olmalarına rağmen ittifakları yönetmek riskli ve zordur. Bu çalışma üç bölümden oluşmaktadır. İlk olarak, stratejik ittifaklardaki iki temel risk türünü, ilişkisel riski ve performans riskini incelemiştir. İkinci olarak, birkaç risk azaltma mekanizması önerilmiştir. Stratejik ittifaklarda farklı tür riskleri yönetmek kompleks ve zor iştir. Buna rağmen, ittifaklarda risk yönetimine şimdiye kadar yeterince önem verilmemiştir. Üçüncü olarak, bu makalede dört evreden oluşan risk yönetim süreci ele alınmıştır. Bu süreç, risklerin tanımlanması, risklerin ölçülmesi ve değerlendirilmesi, risklerin önlenmesi ve kontrolü ve risk yönetiminin performansının değerlendirilmesi aşamalarından oluşur. Son olarak da yönetimsel sonuçlar tartışılarak gelecekteki ampirik çalışmalar için önerilerde bulunulmuştur.
AtıfTR Dizin2
İncele - MakaleYalnız künye2010Muhafazakar dünyanın kutsal efsanelerine giriş: Fethullah Gülen'de hoşgörü, diyalog ve ahlak düşüncesi
Çobanoğlu, Yavuz
Özet: Hoşgörü, diyalog ve uzlaşma gibi kavramların son yirmi yılda geçirdiği süreç ilgi çekici bir seyir izlemektedir. Bu kavramlardan toplumdaki sorunların en azından bir kısmına çözüm olması beklenirken, kavramlar farklı politik kesimlerin de katkısıyla ilginç bir biçimde kutsallaşmış, içerikleri de yeni anlamlar ve söylemlerle doldurulmuştur. Aşağıdaki makale, Fethullah Gülen örneği üzerinden bu kavramların değişen içeriklerini anlamaya yönelik bir çabadır. Çünkü hoşgörü ve diyalog kavramlarını birlikte yaşayabilmenin ahlâkî ilkeleri olarak ele alan Gülen, bu ilkelerin meşrulaştırmasını da kendi İslâm anlayışı ve devlet yorumu üzerinden yaparken dikkat çekici bir söylem kullanmaktadır. Hoşgörü ve diyalog kavramlarından vazgeçmeyen Gülen'in bu kavramlara dinî ve millî sınırlar çizerek, yeni bir ahlâk anlayışını tesis etmeye çalıştığı görülmektedir. Fakat Gülen düşüncesindeki bu anlayış ve yorum üzerinde düşünülmeye muhtaç bir açık alana da sahiptir. Farklı bakış açılarının, inanışların ve farklı hayat tarzlarının bu yorum karşısındaki konumu, "birlikte yaşayabilecek miyiz?" sorusunu böylelikle daha da önemli kılmaktadır.
- MakaleYalnız künye2010Modifiye atmosferde paketleme ve soğukta depolamanın elmanın duyusal kalitesi üzerine etkileri
Batu, Ali; Demirdöven, Aslıhan
Bu araştırmada Grany Smith ve Golden Delicious elmaları 1ºC’de modifiye atmosferde paketlenerek 6 ay süreyle depolanıp, duyusal kalite değerlerine bakılmıştır. Kimyasal kalite değerleri olarak titrasyon asitliği (TA), toplam suda çözünür kuru madde (SÇKM) ile SÇKM:TA oranları, duyusal kalite değerleri olarak ise tatlılık, ekşilik, elma lezzeti, gevreklik ve sertlik değerleri belirlenmiştir. Elmalar farklı paketleme filmleri ile paketlenerek her bir paket içinde farklı modifiye atmosfer koşulları oluşturulmuştur. Ayrıca bir grupta paketlenmeden depolanarak kontrol örneği oluşturulmuştur. Bu örneklerin hepsinde kimyasal ve duyusal analizler yapılarak özellikle duyusal değerlerin kabul edilebilirlilik düzeyleri belirlenmiştir. Böylece depolama sonucunda duyusal ve kimyasal analizler yapılması ile elmaların uzun süre modifiye atmosfer koşullarında depolamanın duyusal kalite üzerinde etkileri belirlenmiştir. Bu araştırma ile aynı çeşit elmanın değişik paketleme filmleri ile paketlenmesinin elmanın duyusal kalitesi üzerine pek etkili olmadığı saptanmıştır. Ancak korelasyon analizi sonucunda yapılan duyusal analiz ile elmaların tirasyon asitliği ve SÇKM değerleri arasında kuvvetli bir ilişkinin olduğu, titrasyon asitliğinin en iyi asit tat üzerine etkili olan iyi bir belirteç olduğu ve ayrıca SÇKM:TA oranının damak lezzeti üzerine çok iyi bir belirteç olduğu belirlenmiştir.
AtıfTR Dizin4İncele - MakaleYalnız künye2010Örgütsel bağlılığın belirleyicisi olarak liderlik: Sağlık çalışanları örneği
Demirel, Erkan Turan; Çakınberk, Arzu
Günümüzde işletmelerde liderlik davranışları ve örgütsel bağlılık davranışları gibi konuların önemi günden güne artmaktadır. Yöneticilerin liderlik davranışlarının işletmelerindeki insan kaynaklarının örgütsel bağlılıklarını artırmada etkili olduğu pek çok araştırma sonucunda ortaya koyulmuştur. Bu çalışmada, çalışanların liderlik algıları ile örgütsel bağlılıkları arasındaki ilişkinin incelenmesi amaçlanmıştır. Bu doğrultuda, öncelikle yönetsel ve Dönüşümcü liderlik tarzları ve örgütsel bağlılık kavramı alt boyutlarıyla kısaca incelenerek konunun kavramsal çerçevesi oluşturulmaya çalışılmıştır. Çalışmanın araştırma kısmında ise; Tunceli ve Malatya devlet hastanelerinde görev yapan toplam 148 yardımcı sağlık personelinden (ebe, hemşire, sağlık memuru, biyolog, laborant, röntgen teknisyeni ve diyetisyen) toplanan veriler, istatistikî analize tabii tutulmuştur. Araştırmanın sonucunda; “Yöneticilerin sergiledikleri liderlik tarzları çalışanların bağlılıklarını gerçekten etkiler mi?” şeklinde belirlenmiş olan sorunun cevabının “evet” olduğu ortaya çıkmıştır. Liderlik tarzlarından özellikle dönüşümcü liderliğin örgütsel bağlılık üzerinde güçlü bir etkisinin olduğu belirlenmiştir. Araştırma sonuçlarının ve önerilerin, özellikle sağlık işletmeleri yöneticilerine, liderlik tarzlarının birlikte çalıştıkları insan kaynağının örgütsel bağlılıklarını daha fazla artırma noktasında faydalı olacağına inanılmaktadır.
AtıfTR Dizin42İncele - MakaleYalnız künye2010Growth performance of rainbow trout (Oncorhynchus mykiss W.,1792) in mobile fish farm as mariculture.
Özden, Osman; Kizak, Volkan; Güner, Yusuf
In this study, growing performance, food conversion ratio and survival of rainbow trout (around 285 g) which were transferred to seawater for directly was investigated in the mobile fish farm during summer season for 90 days. At the end of study, rainbow trouts reached from weighing 285 &#8211; 289 g to 667.3 &#8211; 675.8 g. FCR were around 1.129 &#8211; 1.136. Mortality occurred around 6.07 &#8211; 7.19%. As a result, growth performance and survival of rainbow trout in the mobile fish farm was considerably well when comparing with previous studies. Mobile fish farm can be an important opportunity nowadays for off-shore aquaculture, if technical and administrative problems could be solved.
- MakaleYalnız künye2010Scopus SJRQ3Sparidae familyasından çipura (Sparus aurata), fangri (Pagrus pagrus) ve sinarit (Dentex dentex) yumurtalarının farklı dezenfektan maddelerle yüzey dezenfeksiyonu
Fırat, Muammer Kürşat; Saka, Şahin; Can, Erkan
The aim of this study is to determine suitable conditions for egg disinfection of gilthead sea bream (Sparus aurata), red porgy (Pagrus pagrus), and common dentex (Dentex dentex) with glutaraldehyde, hydrogen peroxide and iodine. The eggs were disinfected with 200 ppm glutaraldehyde (T= 2, 4, 8, 16 min), 300 ppm hydrogen peroxide and iodine (T= 5, 10, 15, 20 min) at four different contact times. The hatching rate was determined in triplicates for each treatment. Also, bacteria colonies were counted on tryptic soy agar (TSA) and thiosulphate citrate bile salt sucrose agar (TCBS). At the end of the experiment, bacterial load and hatching rate were assessed together. For glutaraldehyde treatment, optimal hatching rates and bacterial colonies were estimated as CT (Disinfectant concentration in mg.l-1* exposure time in minute) 800 for sea bream eggs, CT 1600 for red porgy eggs and CT 800-1600 for common dentex eggs. Also, for hydrogen peroxide treatments, they were determined as CT 3000 for sea bream and red porgy and CT 4500 for common dentex. Finally, in iodine treatments, these parameters were measured as CT 4500-6000 for all species&#8217; eggs. However, in our study, it is clear that the glutaraldehyde showed the optimum disinfection effect against the microorganisms because the bacteria could be eliminated completely.
AtıfTR Dizin4İncele - MakaleYalnız künye2010Scopus SJRQ3Elazığ’da satılan kremalı pastalarda E. coli O157:H7’nin varlığı
Patır, Bahri; İlhak, O. İrfan; Dikici, Abdullah; Öksüztepe, Gülsüm; Çalıcıoglu, Mehmet
Bu araştırma, Elazığ’da tüketime sunulan kremalı (sade, kakaolu, meyveli) pastalarda Escherichia coli O157:H7’nin mevcudiyetini belirlemek amacıyla yapıldı. Araştırmada 100 adedi sade kremalı, 50 adedi kakao kremalı ve 50 adedi de meyve kremalı olmak üzere toplam 200 kremalı pasta örneği incelendi. Örneklerin zenginleştirme işlemini takiben CT-SMAC besi yerine yapılan ekim sonucunda; 65 sade kremalı örnekten 138; 8 kakao kremalı örnekten 25; 19 meyve kremalı örnekten 45 adet olmak üzere toplam 208 adet tipik koloniden (renksiz-şeffaf) izolasyon yapıldı. Seçilen bu izolatlara E. coli O157:H7 serotipinin teşhisi için metot kısmında verilen ileriki işlem basamakları uygulandı. Ancak tipik E. coli O157:H7 özelliği gösteren suş tespit edilemediği için, izolatlara H7 tayin işlemleri yapılmadı. İncelenen kremalı (sade, kakaolu, meyveli) yaş pasta örneklerinin hiçbirinde E. coli O157:H7 tespit edilemedi. Bu yönüyle, halk sağlığı açısından sevindirici bir durum olmakla birlikte, bu tür ürünlerin çoğu zaman diğer patojen bakterileri de barındırdığı bilinmektedir. Halk sağlığı açısından potansiyel risk durumunun ortadan kaldırılması ve halkımıza sağlıklı pastacılık ürünlerinin sunulması, ancak bu tür ürünlerin hazırlanmasında kesinlikle hijyenik şartlara uyulmasıyla mümkün olabilecektir..
AtıfTR Dizin2İncele - MakaleYalnız künye2010Scopus SJRQ3The Use of Gillnets for Estimation of Fish Stocks
Yuksel, Fahrettin; Celayir, Yasin
In this research it has been targeted to estimate fishable stocks of Karakaya Dam Lake (in Turkey) by using fishing with gillnets method that had been suggested as an alternative method for estimating fish stocks. Productivity per hectare in the dam lake and the amount of fishable stocks has been calculated to be 13.67 kg ha(-1) and 312.005 kg year(-1), respectively. Fishable stocks have also been analyzed with respect to fish species. According to this, Capoeta sp. is estimated to be 184.107 kg year(-1) (8.06 kg ha(-1)), Cyprinus carpi carpio is estimated to be 56.353 kg year(-1) (2.47 kg ha(-1)), Barbus sp. is estimated to be 40.580 kg year(-1) (1.78 kg ha(-1)), Squalius cephalus is estimated to be 30.455 kg year(-1) (1.34 kg ha(-1)) and Onchorincus mykiss is estimated to be 510 kg year(-1) (0.02 kg ha(-1)).
AtıfWoS3İncele - MakaleYayıncıda açık erişim2010Scopus SJRQ3A Research on the Fish Production and Catching Efficiency in the Keban Dam Lake
Yüksel, Fahrettin; Celayir, Yasin
The study was carried out in 16 different regions of Keban Dam Lake (in Turkey) between 2002 and 2008. The data were taken from cooperative chairmen and members who carried out fisheries activities at the end of fishing season. The amounts of produced fish were evaluated according to fishing season, fisheries place and fish species. The fish were caught 483 tons during the 2002-2003 fishing season, 825 tons during the 2003-2004 fishing season, 653 tons during the 2004-2005 fishing season, 775.7 tons during the 2005-2006 fishing season, 685 tons during the 2006-2007 fishing season and 688 tons during the 2007-2008 fishing season. The produced fish were composed of Capoeta sp. (39%), Barbus sp. (29%), Cyprinus carpio carpio (24.4%), Squalius cephalus (3.8%), Astacus leptodactylus (3%), Alburnus mossulensis (0.6%) and Acanthobrama marmid (0.2%). The average 191 motor boats, 418000 m gillnets and 33665 crayfish fyke nets were used for a year. However, it depends on the fishing season.
AtıfWoS5İncele - BildiriYalnız künye2010CONTROL OF FLOW AROUND A SQUARE PRISM BY USING SYNTHETIC JET
Akansu, Yahya Erkan; Firat, Erhan; Vit, T; Dancova, P
Control of the flow around a square prism by means of synthetic jet through a single slot located on middle of upper surface of the model has been investigated experimentally for Reynolds number of 8000. Synthetic jet was implemented by using a pneumatic piston-cylinder which was driven by means of an electrical motor. The frequency and stroke of the piston were changed to obtain various values of the flow control parameters. For various excitation frequency and momentum coefficients of the synthetic jet, the mean and fluctuating pressure distributions on the square prism were measured. The velocity measurements at the slot exit and at a specific coordinate were conducted by means of constant temperature anemometer (CTA). Vortex shedding frequencies obtained by the spectral analysis of both pressure-time and velocity-time history. At a value of synthetic jet excitation frequency, vortex pairs generated at slot were perturbed the shear layer that separated from the upper leading edge of square model and disturbs it. When the synthetic jet excitation frequency closes enough to the vortex shedding frequency, the lock-in of vortex shedding frequency onto the exciting frequency was occurred. On the other hand, increasing excitation frequency of the synthetic jet causes a pressure recovery on the surface of the prism within the wake region. The efficiency of the synthetic jet is classified depending on change of the drag coefficient and vortex shedding frequency.
AtıfWoS1İncele - MakaleYalnız künye2010Scopus SJRQ3Variation in Advertisement Call Properties of the Japanese Quail
Sezer, M.; Tekelioglu, O.
The aim of this study was to investigate the amount variation in four spectral and six temporal properties of advertisement calls between and within-male Japanese quail and to establish the effect of age of sexual maturation to these properties. The first, second, third syllables and damping parts were 68.2, 74.3, 501.1 and 95.9 ms long, on average, and had peak frequencies of 1719.9, 1989.9, 2203.2 and 2352.7 Hz, respectively. There was high between individual variations in all call traits. In relation to within-male variation, there were high medians and low ranges for spectral properties while low medians and high ranges for temporal properties. Moderate positive correlations between syllable lengths and age of sexual maturation, low negative correlations between interval lengths and age of sexual maturation were observed. Repeatability of the advertisement call characteristics were hid, but estimates for spectral properties were slightly lower (0.66-0.82) than that for temporal properties (0.89-0.96). These results suggest that temporal call parameters have the potential to be used in individual identity and these traits might carry information used by females in mate choice. Spectral properties could be recognized as stable call properties that may be used in efficient transmission or species recognition.
AtıfWoS3İncele - MakaleYalnız künye2010Scopus SJRQ3Comparison of Hatching Performances and Yolk Sac Absorptions of Black Sea Trout (Salmo trutta labrax Pallas, 1811), Brook Trout (Salvelinus fontinalis Mitchill, 1814) and Their Hybrid
Basçinar, Nadir; Kocabas, Mehmet; Sahin, Sebnem Atasaral; Okumus, Ibrahim
The aims of this study were to determine hatching performance, body and yolk weight at hatching, the growth rate during the yolk absorption and yolk conversion efficiency of Black Sea trout, brook trout and their hybrid larvae, and to compare the relationships between length, total wet weight, dry yolk body weights of alevins and degree-days. The Black Sea trout egg has shorter incubation duration than brook trout and their hybrid. Survival from fertilization to swim-up of brook trout, Black Sea trout, and hybrid were 45.8%, 54.3% and 30.7%, respectively. Length, total wet weight, dry larva weights, and dry yolk weights of brook trout, Black Sea trout and hybrid exhibited a linear relationship with degree-days; dry yolk weight decreased, while length, total wet weight and dry body weight increased with degree-days. The linear regression parameters excluding length slope were significantly different. Length and weight increase as well as growth rates, daily yolk sac consumption and yolk sac efficiency values were calculated as 0.21 mm/day, 0.63 mg/day, 0.30 mg/day, and 0.61 for brook trout; 0.19 mm/day, 0.87 mg/day, 0.60 mg/day, and 0.76 for Black Sea trout, and 0.20 mm/day, 0.45 mg/day, 0.28 mg/day, and 0.46 for hybrid, respectively.
AtıfWoS5İncele - MakaleYalnız künye2010Scopus SJRQ3Biochemical Flavour Parameters of Milk in Early Lactation
Bayril, T.; Cimen, M.; Tekelioglu, O.
This research was aimed to investigate the biochemical flavour-parameters of milk by machine milking in early lactation period. In the experiment, milk samples from 50 Holstein cows were used. Cows were fed high-energy concentrate diet (140 g crude protein and 10.3 metabolizable energy MJ/d). The data was collected from DIMES Company during July month. The milk fat rates were lower (p < 0.05) for cows in first and second weeks than last week. Cows were shown to be more sensitive to milk fat syndrome for first and second weeks. A decrease in milk fat percentage for summer period (2.3-2.6 %) can directly lead to taste loss. There were statistically no significant differences between the weeks for milk acidity (sH and pH) values during July. The milk acidity values (sH and pH) during July were tolerable for desired taste and favourable for consumer preference.
AtıfWoS2İncele - MakaleYayıncıda açık erişim2010Scopus SJRQ3The Effects of Different Feeds under the Same Salinity Conditions on the Growth and Survival Rate of Artemia
Kayim, Murathan; Ates, Mehmet; Elekon, Hasan Alper
This study reports effects of 4 different feeds under same salinity conditions on feeding of anemia in terms of growth and survival rate. The feeds comprised of four groups (Group A: -16% Selco + 80% Headstart + 4% Molasses mixture feed; Group B: -85% Chlorella + 15% Molasses mixture feed; Group C: 50% Chlorella + 50% Headstart mixture feed and Group D: -100% Chlorella feed). Through stabilizing temperature, oxygen, pH and salinity values as general water parameters and replacing 10% sea water from the tank on daily basis, the survival rate and the growth in length of the anemia were analysed as well as the changes in nitrite content in the water. The results showed that the highest increase of 1400 mu in anemia with average pre-test length of 450 mu was observed on feed C. The highest rate of 58.33% survival was recorded on feed D. Similarly, the highest nitrite of 1.50 mg L-1 was measured in trial tank containing artemia fed on feed A and least nitrite generation of 0.45 mg L-1 was noted in trial tank containing anemia fed on feed C.
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