an experiment was conducted to determine the effect of different levels of potato replacing maizeseed on performance characteristicsand immunes system of broiler chicken in a completely randomized design. a total of 220 broiler chicks were randomly assigned to 5 treatment groups, with 4 replicates of 11 birds each. the chicks in the first group were fed basal diet (control), 2nd and 3rd groups ...

the main objective of the present survey is to conduct a comparative analysis of the challenges of the performance evaluation system in two private and public sectors and their impact on effectiveness of human resources management practices. this survey was conducted using the field-descriptive method. the historical study method was used to collect theoretical subjects and the field study meth...

water use productivity is one of the most important factors in scientific agriculture. it is equal to 0. 7 kg of production per cubic meter of irrigation water (kg/m3) in iran which is very low in comparison with advanced countries (1 to 2 kg/m3). current research studies temporal and spatialchanges of water use productivity in hamedan province in iran using geographic information system (gis),...

the aim of this study was to evaluate the effect of organic selenium supplementation on the immune response of broilers vaccinated against coccidiosis, infection bursal disease virus (ibdv) and newcastle diseases virus (ndv). the study included three treatments (t), t1= control (inclusion of inorganic selenium in a basal diet), t2= basal diet + 0.2 ppm of organic selenium as selenomethionine an...

introduction: the family physician program is one of the most important plans for increasing the equitable access and affordable health services. this study aimed to examine the performance of urban family physicians and associated factors in the third year of its implementation. method: a cross-sectional study was conducted on all family physicians (31 persons) working in the private and publi...

the aim of this study was to investigate the impact of management information system on employees’ performance of tehran province water and wastewater company in district 5. the present study was an applied research in terms of purpose and a descriptive correlational survey in terms of method. cochran's formula was used to determine sample size which was 219 employees. the statistical samp...

background; the performance of the hse units has various dimensions leading to different performances. thus, any industry should be capable of evaluating these systems. the aim of this study was to design a standard questionnaire in the field of performance evaluation of hse management system employing balanced score card model. methods; in this study we, first determined the criteria to be eva...

background: health system research (hsr) is system planning, coordination, monitoring and management of research resources and activities to achieve health and justice. as the main members of the health system, general practitioners (gps) play an important role in access to health care goals. the aim of the present study was to assess knowledge, attitude, and performance of gps in rafsanjan, ir...