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Articles by Hasan YILMAZ
Total Records ( 4 ) for Hasan YILMAZ
  Hasan Yilmaz , Faris Karahan and Sevgi Yilmaz
  This study was carried in order to determine some natural plant species, which include high potential for use in rock and dry wall gardens, in the Palandoken mountains. 10 sampling areas with the altitudes of 2100 and 3176 m were selected to conduct the study in the period May 1997 to September 1998. In situ plant surveys, floristical plant analyses and species sampling plots were used in the study. During the study, 166 plant species belonging to 32 families were examined, of which 114 alpine plant species belonging to 30 families were found to be important in terms of use in rock and dry wall gardening.
  Turan Binici , Vecdi Demircan , Hasan Yilmaz , Mevlut Gul and Tufan Bal
  This study finds that a sample of 75 laying hens farmers located in Afyon Province, Turkey, exhibit inputs allocation and utilization are not efficient. Efficiency ranges from 45-97% with the average being 94%. The 97% of the variation in egg production among the sampled farmers is due to differences in their production efficiency. The returns to scale of the poultry egg production is found to be positive and more than unity implying that inputs allocation and utilization are not efficient. Three statistically significant factors associated with the variation in production efficiency are identified: feding, drug and veterinary service and electricity inputs.
  Hasan Yilmaz
  Agriculture plays an important role in Turkey, both in social and economic terms. Subsistence and semi-subsistence farming is an important characteristic of the Turkish agriculture. These farms are typically characterized by low productivity and only a small fraction of production has been marketed. While the rate of agriculture in national income was 14.7% in 2000, this rate is declined to 10.7% in 2005. Turkey is endowed with rich natural and human resources, but it is still far from reaching full potential of agricultural growth because of the inefficient agricultural policies. The prevailing conditions in agriculture combined with the mismanagement in macro and agricultural policies prevented an overall structural transformation of the sector. The long-term objectives of agricultural policies obviously need to be the improvement of productivity in the sector. In this study, the recent changes and developments in agriculture sector in general economy, agricultural structure, land use, production and policies in Turkey are analyzed. In addition, problems and proposed solutions related to agricultural in Turkey are also presented.
  Mehmet TANYUKSEL , Mustafa ULUKANLIGIL , Hasan YILMAZ , Zeynep GUCLU , R. Engin ARAZ , Gurkan MERT , Ozgur KORU and William A. PETRI, Jr

Aim: The spectrum of clinical intestinal disease due to Entamoeba histolyticainfection ranges from an asymptomatic carrier state to fulminant colitis with an array of manifestations. The extent of strain diversity for E. histolytica and the extent to which strains differ in virulence are not clearly known. In this study, we aimed to investigate the genetic diversity of E. histolytica isolates from Turkey.

Materials and Methods: In order to study genetic diversity, the serine-rich gene of E. histolytica (SREHP) was investigated in 26 clinical isolates from Turkey by nested PCR amplification and restriction enzyme fragment length polymorphism (RFLP) analysis.

Results: Twelve distinct DNA patterns were observed after AluI digestion of nested PCR products. The results demonstrate an extensive genetic variability among Turkish E. histolyticaclinical isolates.

Conclusions: Genotyping seems to be a useful epidemiologic tool to identify common-source outbreaks as well as strain-specific manifestation of an infection.

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