Alpha-induced reactions for the astrophysical p-process: the case of 151Eu

The cross sections of 151Eu(alpha,gamma)155Tb and 151Eu(alpha,n)154Tb reactions have been measured with the activation method. Some aspects of the measurement are presented here to illustrate the requirements of experimental techniques needed to obtain nuclear data for the astrophysical p-process nucleosynthesis. Preliminary cross section results are also presented and compared with the predictions of statistical model calculations.Comment: Accepted for publication in Journal of Physics Conference Series, proceeding of the Nuclear Physics in Astrophysics IV. conferenc

Does Career Decidedness Affect Employment Hope? The Mediating Role of Education Quality in Higher Educationpotential of Work from Home for Determining Job Quality

In today’s conditions, one of the most important issues that confuse students in higher education is their career. With the increasing economic conditions and population growth, it becomes more difficult for them to decide on their careers. Employment perspectives and professional awareness levels are important for job seekers to find a job that meets their knowledge, skills and expectations and to ensure continuity. The general mood for students to have information about finding a job after graduation is expressed as employment hope. The quality of education students receive in higher education will affect their careers and futures. In this study, it is aimed to examine the mediating role of the education quality (EQ) in higher education in the relationship between career decidedness (CD) and employment hope (EH) of university students. The research was conducted with a sample of 476 people which continues to their higher education in different universities in Türkiye. According to the findings obtained; a statistically significant positive correlation was found between CD and EQ, CD and EH, and EQ and EH. In addition, according to the mediation test, it was determined that education quality had a partial and weak mediating role between CD and EH

Effect of dietary methionine on performance, carcase characteristics and breast meat composition of heterozygous naked neck (Na/na+) birds under spring and summer conditions

PubMed ID: 106706831. Heteroxygous naked neck (Na/na+) birds and their normally feathered counterparts (na+/ na+) were fed from 0 to 7 weeks on 3 diets differing in methionine concentrations. From 0 to 3 and 3 to 7 weeks, respectively, the concentrations were: low containing 4.3 and 3.3 g/kg; optimum containing 5.0 and 3.8 g/kg and; high with 5.7 and 4.4 g/kg under spring (optimum ambient temperature) and summer conditions (high ambient temperature). Performance, carcase characteristics and breast meat chemical composition were determined. 2. Summer rearing resulted in a decrease in body weight, body weight gain, food consumption, and yields of carcase and breast. The summer temperature effect was more pronounced in males. Under summer temperatures, the protein content of the breast decreased while the fat content increased compared to birds reared in spring. 3. By 7 weeks of age, both genotypes reached similar body weights in the spring experiment while, in summer Na/na+ birds were 3.3% heavier and gained more in the period from 3 to 7 weeks than na+/na+ birds. Carcase and breast yields of Na/na+ birds were greater than in na+/na+ birds. 3. Second order polynomial coefficients of the dietary methionine effect were found to be significant for body weight at 3 and 7 weeks. Daily body weight gain between 3 and 7 weeks was linearly affected by the dietary methionine concentration. There was no interaction between genotype and methionine. 4. Methionine had no significant effect on carcase yield. Second order polynomial coefficients of the dietary methionine effect were found to be significant for breast yield while the methionine effect on abdominal fat was linear. Na/na+ females fed on the low methionine diet had lower protein content than the Na/na+ males. 5. It is concluded that the methionine requirement of Na/na+ birds did not differ from that of their normally feathered counterparts under either spring or summer ambient temperature conditions. © 1999 British Poultry Science Ltd

Restricted growth of broilers 1. Effects of different restricted feeding programs on broiler performance and carcass characteristics [Etlik Piliçlerde Gelişmenin Geciktirilmesi: Degişik Sinirli Yemleme Programlarinin Etlik Piliç Performansi ve Karkas Özelliklerine Etkileri]

In this study, the influence of different methods of feed restriction on the performance of broiler with two genotypes, was investigated. Compensatory growth after feed restriction was studied and the effects of the restriction on feed consumption, growth and carcass characteristics were discussed. Broilers in each genotypes were separated in three groups randomly. In the first group, all birds were fed fully (Control). Feed restriction at the level of basal metabolism were used from 7 to 14 days of age in second group, and from 14 to 21 days of age in third group. There has been evidence of compensatory growth in birds restricted in early life (from 7 to 14 and from 14 to 21 days of age). Feed consumption in the restricted birds was less and feed conversion was better than the birds full fed, at 7 th weeks of age. Feed restiction had no significant effect on broiler carcass yield and percentage of abdominal fat pad, legs and breast. As a result, compensatory growth at 6th wk following feed restriction was observed in broilers

Erkek Hindilerde Aralıklı Yemlemenin Performans ve Stres Parametrelerine Etkisi

The objective of this study was to investigate the effect of intermittent feeding on growth performance and stress related parameters of turkey toms from a heavy commercial line. Lighting schedule was 14L:10D during the experiment. In intermittent group, cyclic 2h duration of feeding was applied to birds during daily photophase from day 10. Body weight, body weight gain and feed consumption didn't differ with treatment. The restricted group had improved FCR between 10-17 d. Significantly higher basophile numbers were observed in restricted group at 12 d. At 28 d, heterophils were significantly (P;lt;0.05) and H/L ratios were numerically higher in restricted group, while eosinophils lower than ad libitum group (P;lt;0.05). Leucocyte responses to intermittent feeding showed the severe stress effect of intermittent feeding on turkeys at start and a mild stress at 28 d and no effect of feeding onward. These results may refer that turkey toms adapted to feeding manipulation by six wk. Feeding,didn't affect tonic immobility, shank growth and walking ability.Bu çalışma, aralıklı yemlemenin ticari ağır genotipten erkek hindilerde gelişme özellikleri ve bazı stres parametrelerine etkilerini saptamak amacıyla yapılmıştır. Deneme boyunca 14A:10K aydınlatma programı uygulanmıştır. Aralıklı yemleme grubunda hindilere 10. günden itibaren aydınlık periyotta 2 saatlik döngüler halinde yemleme yapılmıştır. Canlı ağırlık, canlı ağırlık artışı ve yem tüketimi yemleme yöntemine göre farklılık göstermemiştir. Sınırlı yemleme yapılan grupta 10-17. günler arasında yemden yararlanma değeri iyileşmiştir. Aralıklı yemleme uygulanan hindilerde 12. günde bazofil oram önemli düzeyde yüksek bulunmuştur. Heterofil sayıları 28. günde aralıklı yemleme grubunda serbest yemleme grubundan önemli düzeyde (P0.05), H/L oranı ise sayısal olarak daha yüksek bulunmuştur. Eosinofil oranının sınırlama grubunda daha düşük (P0.05) olduğu saptanmıştır. Bu sonuçlar, uygulanan aralıklı yemlemenin hindiler üzerinde başlangıçta şiddetli daha sonra ılımlı düzeyde bir stres oluşturduğunu göstermektedir. İlerleyen yaşlarda bu etkilerin kaybolması hayvanların 6 hafta içinde aralıklı yemlemeye alışmaları ile ilişkilendirilmiştir. TI süreleri, incik gelişimi ve yürüyüş kusurları bakımından yemleme grupları arasında farklılık saptanmamıştır