The relationship among spawning period, length at first maturity and depth distribution of Mullus barbatus and Upeneus moluccensis inhabiting the Northeastern Mediterranean coast of Turkey

This study examined the spawning characteristics and distribution of Mullus barbatus and Upeneus moluccensis in Babadillimani Bight, in the northeastern Mediterranean (near Mersin, Turkey) between of May 1999 and April 2000. Sampling was carried out monthly at depths of 0-50 m, 50-100 m and >100 m using commercial trawl net mesh size 22 mm knot to knot. The results showed no difference between the length at first maturity of males and females (t-test, P>0.001) in either M. barbatus or U. moluccensis. This length for the combined sexes was calculated to be 11.7 cm and 10.9 cm in M. barbatus and U. moluccensis, respectively. When monthly changes in the Gonadosomatic Index (GSI) values were evaluated, the spawning period was determined as July-November for M. barbatus and May-August for U. moluccensis. The mean total lengths from the individuals belonging to M. barbatus from depth layers of 0-50 m, 50-100 m and >100 m were calculated as 8.65 cm, 8.70 cm and 12.70 cm, respectively. Total lengths for U. moluccensis were calculated as 8.40 cm, 11.66 cm and 13.32 cm, respectively. The mean total length of M. barbatus and U. moluccensis increased from coastal areas to deeper waters. Therefore bottom trawl fishing must be conducted in waters deeper than 100 m for both M. barbatus and U. moluccensis

COVID-19 in pediatric nephrology centers in Turkey

Background/aim: There is limited data on COVID-19 disease in children with kidney disease. We aimed to investigate the characteristics and prognosis of COVID-19 in pediatric nephrology patients in Turkey. Materials and methods: This was a national, multicenter, retrospective cohort study based on an online survey evaluating the data between 11th March 2020 and 11th March 2021 as an initial step of a detailed pediatric nephrology COVID-19 registry. Results: Two hundred and three patients (89 girls and 114 boys) were diagnosed with COVID-19. One-third of these patients (36.9%) were between 10–15 years old. Half of the patients were on kidney replacement therapy: kidney transplant (KTx) recipients (n = 56, 27.5%), patients receiving chronic hemodialysis (n = 33, 16.3%) and those on peritoneal dialysis (PD) (n = 18, 8.9%). Fifty-four (26.6%) children were asymptomatic. Eighty-two (40.3%) patients were hospitalized and 23 (28%) needed intensive care unit admission. Fifty-five percent of the patients were not treated, while the remaining was given favipiravir (20.7%), steroid (16.3%), and hydroxychloroquine (11.3%). Acute kidney injury developed in 19.5% of hospitalized patients. Five (2.4%) had MIS-C. Eighty-three percent of the patients were discharged without any apparent sequelae, while 7 (3.4%) died. One hundred and eight health care staff were infected during the study period. Conclusion: COVID-19 was most commonly seen in patients who underwent KTx and received HD. The combined immunosuppressive therapy and frequent exposure to the hospital setting may increase these patients’ susceptibility. Staff infections before vaccination era were alarming, various precautions should be taken for infection control, particularly optimal vaccination coverage

Dr Vulpeculae örten çiftinin eksen dönme sorunu ve fotoelektrik ışık ölçümü

Bu tezin, veri tabanı üzerinden yayınlanma izni bulunmamaktadır. Yayınlanma izni olmayan tezlerin basılı kopyalarına Üniversite kütüphaneniz aracılığıyla (TÜBESS üzerinden) erişebilirsiniz.SUMMARY In this thesis, photoelectric observations of DR Vulpecula (BD+26°3835= HD339770) which is a binary eclipsing system possessing apsidal motion have been carried out in B and V colors at the Ege Universisty Obsevatory. A number of minima have been observed due to the apsidal motion. These minima, being the latest obtained data for the system, then have been used in the period analysis in combination with the existing minima in the literature, which resulted in a parabolic variation in addition to a sinusoidal one as well. A parabolic effect induced increase of 0.0596 sec / year in the period has been obtained. The light elements for the system have been found as HJD Min=2446274d 5038+2d.25089080E+4.25*10"9 E2 ± 0.0701 cos (0°.06076 E + 71°.30). ±10 ±32 ±30 ±7 ±34 ±0°.10 The orbital and apsidal motion period have been obtained as 2.25089080 days and 35.513 years, respectively. The period obtained for the apsidal motion is in good agreement with that of Khaliullina and Khaliullin (1988). As for the calculation of the phase, instantaneous linear light elements are used, and is obtained as HJD Min 1= 2449162d463 1 + 2d.2509350 E ±1 ±15 The solutions of the photoelectric light curves obtained for DR Vul have been performed by using both Wood (WINK 10) and Wilson-Devinney methods, in which the light curves obtained in 1994 were mostly used rather than those obtained in 1993 being not complete. Both methods have given very similar results, which agree with the previous results reported in the literature for the system. The results with the both methods turns out that tlje temperature obtained is suitable for BO V kind of spectrum. In the solution, the third light has also been taken into account. The apsidal motion coeffient k2 and the polytropic index for the system have been found as 0.0109 and 3.2, recpectively. It is well known that DR Vul is a detached system. Roche lobes for the systems have been 64sketched by using the potential values obtained by means of the Wilson-Devinney method, and it is found that the system does not fill the Roche lobes. The spectral analysis of the system has not been done completely. Semi-major axis length and the individual elements of the components have not been calculated, since the radial velocity of the system is not included in the observations. 65ÖZET Bu çalışmada eksen dönmesi gösteren bir örten değişen çift olan DR Vulpeculae (BD +26° 3835=HD 339770)' ran fotoelektrik ışık ölçümü Ege Üniversitesi Rasathanesinde yapılarak B ve V renklerindeki ışık eğrileri elde edilmiştir. Dizge eksen dönmesi gösterdiği için çok sayıda minimum zamanı gözlenmiştir. Belirlenen bu minimum zamanlan, daha önceden yayınlanmış minimum zamanlan ile birleştirilerek dönem analizi yapılmıştır. Yapılan bu analiz sonunda sinüsodial değişime ek olarak parabolik bir değişim de belirlenmiştir. Parabolik etki nedeniyle dönemde 0.0596 sn / yıllık bir artma olduğu saptanmıştır. Dizgenin ışık öğeleri, HJD Mİn=24462748.5038+2g.25089080E+4.25*10"9 E2 ± 0.0701 cos (0°.06076 E + 71°.30) ±10 ±32 ±30 ±7 ±34 ±0°.10 olarak elde edilmiştir. Dizgenin dolanma dönemi 2.25089080 gün ve eksen dönme dönemi 35.513 yıl olarak belirlenmiştir. Eksen dönme dönemi için bulunan bu değer Khaliullina ve Khaliullin (1988)' nin verdiği değer ile oldukça iyi uyuşmaktadır. Evre hesabında anlık lineer ışık öğeleri kullanılmıştır. Buna göre elde edilen anlık lineer ışık öğeleri şöyledir. HJD Min 1= 24491628.463 1 + 2g.2509350 E ±2 ±15 DR Vul' un elde edilen fotoelektrik ışık eğrileri Wood (WINK 10) ve Wilson- Devinney yöntemleri kullanılarak çözülmüştür. DR Vul 'un 1993 yılında elde edilen fotoelektrik ışık eğrisi tamamlanamadığı için çözümlerde 1994 yılında elde edilen ışık eğrilerine ağırlık verilmiştir. Çözümler sonunda dizgeye ait yörünge elemanları ve fiziksel parametreler elde edilmiştir. Çözüm yapılan her iki yöntemde elde edilen sonuçlar birbirlerine çok yalandır. Ayrıca çözüm sonuçlan daha önceden yapılmış çalışmalarınınsonuçlan ile uyum göstermektedir. Her iki yöntem ile yaptığımız çözümlerde elde edilen sıcaklık BO V tayf türü için uygundur. Çözümlerde üçüncü ışık da dikkate alınmıştır. Dizgeye ait k2 eksen dönme katsayısı 0.0109 ve politropik indeks 3.2 olarak belirlenmiştir. DR VuP un ayrık bir dizge olduğu bilinmektedir. Wilson-Devinney yöntemi ile elde edilen potansiyel değerleri kullanılarak dizgenin Roche Loblan çizdirilmiştir. Bu şekilde dizgenin bileşenlerinin henüz Roche Loblarını doldurmadığı görülmüştür. DR VuF un tayfsal incelemesi henüz yeterince yapılmamıştır. Dizgeye ait dikine hız gözlemleri mevcut olmadığından yörünge yan-büyük eksen uzunluğu ve bileşenlerin salt öğeleri hesaplanmamıştı

Estimation of growth mortality and the exploitation rate of the bougue (Boops boops linnaeus, 1758

Bu çalışmada, Babadıllimanı Koyundaki Kupeslerin (Boops boops LINN., 1758) populasyonunun bazı biyolojik özelliklerini belirlemek amacıyla, Mayıs 1999-Nisan 2000 tarihleri arasında aylık olarak dip trolü avcılığından elde edilen 314 adet birey incelenmiştir. İncelen balık boylarının 7,5-21,4 cm; ağırlıklarının 3,52-99,98 gr ve yaşlarının I. ile VI. yaşlar arasında değiştiği; bunların %49,68'nin dişi, %50,00'sinin erkek ve %0,32'sinin ise, jüvenil bireylerden oluştuğu saptanmıştır. Büyüme özeliklerinde boy-ağırlık ilişkisi W=0,0084L303 ve von Bertalanffy'nin boyca ve ağırlıkça büyüme sabitleri L«,=33,62 cm, K=0,109 yıM, to=-1,900 yıl ve Woo=354,707 gr olarak belirlenmiştir. Ayrıca toplam ölümün Z=1,2572 yıM, bileşenlerinin F=0,9058 yıM ile M=0,3514 yıl1 ve stoktan yararlanma oranın E=0,7205 yıl1 olduğu; böylece Babadıllimanı Koyundaki kupeslerin aşırı avcılık baskısı altında bulundukları saptanmıştır.Estimation of growth, mortality and the exploitation rate of the bougue {Boops Boops Linnaeus, 1758) population from the Babadıllimanı (Mersin) Bight. This study was performed for the identification to the fisheries biological parametres of (Boops boops Linn., 1758), 314 individuals were obtained by monthly sampling using deep trawl from the Babadıllimanı Bight between May 1999 and April 2000. The lenghts ranged from 7.5-21.4 cm and weight varied between of 3.52-99.98 g while age composition changed from I to VI. th age group. The examined individuals composed of 49.68% female 50.00% male 3.2% juvenil. The growth peculiarities length-weight relationship were estimated, von Bertalanffy's growth constants in length and weight were also estimated as L»=33.62 cm, K=0.109 yiM, to=-1.900 yıl and W»=354.707 g. In additionally for this species mortality were Z=1.2572 year1, and its components were F=0.9058 year and M=0.3514 year -1; it was also found that the exploitation rate was E=0.7205 year1. Therefore, the was overfishing on the bogue stock inhabited along the Babadıllimanı Bight

Estimation of the exploitation rate on the carp (Cyprinus carpio Linnaeus, 1758) and pike-perch (Sander lucioperca Linnaeus, 1758) inhabiting in Seyhan Dam Lake.

Bu çalışma, Seyhan Baraj Gölü'ndeki sazan (Cyprinus carpio Linnaeus, 1758) ve sudak [(Sander lucioperca Linnaeus, 1758)] stoklarından yararlanma düzeyini belirlemek amacıyla gerçekleştirilmiştir. Bu amaçla Ağustos-Ekim 2001 tarihleri arasında saha örneklemeleri yapılmış ve sağlanan örneklerin incelenmesi sonucu, sazanlardan biraz fazla; buna karşılık sudaklardan ise, kısmen az sayılabilecek bir düzeyde yararlanıldığı; bununla birlikte her iki stok üzerinde de optimum sayılabilecek bir yararlanma düzeyinin olduğu belirlenmiştir. Böylece, Seyhan Baraj Gölü'ndeki sazan ve sudaklara uygulanan balıkçılık baskısında, herhangi bir değişikliğe gidilmesinin gereksiz olduğu sonucuna varılmıştır.This present study has been prepared for the estimation of exploitation rate on the carp (Cyprinus carpio Linnaeus, 1758} and pike-perch [(Sander lucioperca Linnaeus, 1758)] inhabiting in Seyhan Dam Lake. For this purpose, insitu samplings were carried out in between of August and October 2001. By using these samples it was found that there was a slowly high exploitation rate on the carp while a slowly low on the pike-perch stock. Therefore, it was decided that there was an optimum fishery on these two stocks, and depicted that no changes should be made on the fishing intensity operated at now to the Seyhan Dam Lake carp and pike-perch Fisheries

Estimation of growth mortality and the exploitation rate of the bougue (Boops boops linnaeus, 1758

Bu çalışmada, Babadıllimanı Koyundaki Kupeslerin (Boops boops LINN., 1758) populasyonunun bazı biyolojik özelliklerini belirlemek amacıyla, Mayıs 1999-Nisan 2000 tarihleri arasında aylık olarak dip trolü avcılığından elde edilen 314 adet birey incelenmiştir. İncelen balık boylarının 7,5-21,4 cm; ağırlıklarının 3,52-99,98 gr ve yaşlarının I. ile VI. yaşlar arasında değiştiği; bunların %49,68'nin dişi, %50,00'sinin erkek ve %0,32'sinin ise, jüvenil bireylerden oluştuğu saptanmıştır. Büyüme özeliklerinde boy-ağırlık ilişkisi W=0,0084L303 ve von Bertalanffy'nin boyca ve ağırlıkça büyüme sabitleri L«,=33,62 cm, K=0,109 yıM, to=-1,900 yıl ve Woo=354,707 gr olarak belirlenmiştir. Ayrıca toplam ölümün Z=1,2572 yıM, bileşenlerinin F=0,9058 yıM ile M=0,3514 yıl1 ve stoktan yararlanma oranın E=0,7205 yıl1 olduğu; böylece Babadıllimanı Koyundaki kupeslerin aşırı avcılık baskısı altında bulundukları saptanmıştır.Estimation of growth, mortality and the exploitation rate of the bougue {Boops Boops Linnaeus, 1758) population from the Babadıllimanı (Mersin) Bight. This study was performed for the identification to the fisheries biological parametres of (Boops boops Linn., 1758), 314 individuals were obtained by monthly sampling using deep trawl from the Babadıllimanı Bight between May 1999 and April 2000. The lenghts ranged from 7.5-21.4 cm and weight varied between of 3.52-99.98 g while age composition changed from I to VI. th age group. The examined individuals composed of 49.68% female 50.00% male 3.2% juvenil. The growth peculiarities length-weight relationship were estimated, von Bertalanffy's growth constants in length and weight were also estimated as L»=33.62 cm, K=0.109 yiM, to=-1.900 yıl and W»=354.707 g. In additionally for this species mortality were Z=1.2572 year1, and its components were F=0.9058 year and M=0.3514 year -1; it was also found that the exploitation rate was E=0.7205 year1. Therefore, the was overfishing on the bogue stock inhabited along the Babadıllimanı Bight

A preliminary study on reproductive peculiarities of the Tonguesole (Cynoglossus sinusarabici Chabanaud, 1931) from Northeastern Mediterranean (Mersin)

Babadillimani Koyu'ndaki Cynoglossus sinusarabici Chabanaud, 1931 populasyonunun üreme özelliklerini belirlemek amacıyla Mayıs 1999-Nisan 2000 tarihleri arasında aylık örnekleme yolluyla elde edilen örneklerin %51.5'inin erkek, %48.5'sinin ise dişilerden oluştuğu saptanmıştır. Gonadosomatik İndeks değerlerinin aylık değişiminden bu türün üreme döneminin Mayıs-Temmuz ve Eylül-Aralık arasındaki dönemlerde olmak üzere yılda iki kez gerçekleştiği; ilk eşeysel olgunluk boyunun erkeklerde 6.8, dişilerde 6.9 cm olduğu; ortalama yumurta verimliliği (Fekondite) ise, 7207±4514 adet olduğu saptanmıştır.Reproductive peculiarities of tonguesole {Cynoglossus sinusarabia (Chabanaud, 1931)) collected from Babadillimani Bight were studied by using monthly sampling during the period of May 1999 to April 2000. The examined samples composed of %51.5 males and %48.5 females. By using the monthly changes of the mean Gonadosomatic Index, it was found that this species reproduced twice in a year; one of them in May-July and other in between September and December length at first maturity was 6.8 cm and 6.9 cm for males and females, respectively. Mean fecundity was also found as 7207±4514

The relationship among spawning period, length at first maturity and depth distribution of Mullus barbatus and Upeneus moluccensis inhabiting the Northeastern Mediterranean coast of Turkey

This study examined the spawning characteristics and distribution of Mullus barbatus and Upeneus moluccensis in Babadillimani Bight, in the northeastern Mediterranean (near Mersin, Turkey) between of May 1999 and April 2000. Sampling was carried out monthly at depths of 0-50 m, 50-100 m and >100 m using commercial trawl net mesh size 22 mm knot to knot. The results showed no difference between the length at first maturity of males and females (t-test, P>0.001) in either M. barbatus or U. moluccensis. This length for the combined sexes was calculated to be 11.7 cm and 10.9 cm in M. barbatus and U. moluccensis, respectively. When monthly changes in the Gonadosomatic Index (GSI) values were evaluated, the spawning period was determined as July-November for M. barbatus and May-August for U. moluccensis. The mean total lengths from the individuals belonging to M. barbatus from depth layers of 0-50 m, 50-100 m and >100 m were calculated as 8.65 cm, 8.70 cm and 12.70 cm, respectively. Total lengths for U. moluccensis were calculated as 8.40 cm, 11.66 cm and 13.32 cm, respectively. The mean total length of M. barbatus and U. moluccensis increased from coastal areas to deeper waters. Therefore bottom trawl fishing must be conducted in waters deeper than 100 m for both M. barbatus and U. moluccensis

Ankara Atatürk Lisesi Eğitim Vakfı

Ankara : İhsan Doğramacı Bilkent Üniversitesi İktisadi, İdari ve Sosyal Bilimler Fakültesi, Tarih Bölümü, 2014.This work is a student project of the The Department of History, Faculty of Economics, Administrative and Social Sciences, İhsan Doğramacı Bilkent University.by Özer, Abdürrahim