نتایج جستجو برای: using cochrans formula and simple random sampling

تعداد نتایج: 17420360  

Journal: :Journal of Nuclear Science and Technology 2016

Background and purpose: Protecting healthcare workers on the front line of Coronavirus disease 2019 (COVID-19) is very important. The aim of this study was to investigate the incidence of COVID-19 in hospital staff and its relationship with influenza vaccine in 2020. Materials and methods: A descriptive-analytical study was performed in 4446 staff working in public hospitals in Mazandaran prov...

Journal: :Jurnal Ilmiah Mahasiswa Pertanian 2022

Entrepreneurship is very important for the development of a country. This study aims to determine how impact entrepreneurship education on entrepreneurial intentions and factors that influence in Agribusiness students at Syiah Kuala University. Respondents taken this amounted 77 respondents using Taro Yamane formula simple random sampling technique. The data has been obtained processed ordinal ...

Journal: :بینا 0
حسن هاشمی h hashemi noor ophthalmic research center, tehran, iranتهران- خیابان ولیعصر- خیابان اسفندیاری- بیمارستان چشم پزشکی نور- مرکز تحقیقات چشم سیدفرزاد محمدی f mohammadi eye research center, farabi hospital, tehran university of medical sciences, tehran, iranتهران- خیابان ولیعصر- خیابان اسفندیاری- بیمارستان چشم پزشکی نور- مرکز تحقیقات چشم مرسده مجدی m majdi eye research center, farabi hospital, tehran university of medical sciences, tehran, iranتهران- خیابان ولیعصر- خیابان اسفندیاری- بیمارستان چشم پزشکی نور- مرکز تحقیقات چشم مهدی خبازخوب m khabaz khoob noor ophthalmic research center, tehran, iranتهران- خیابان ولیعصر- خیابان اسفندیاری- بیمارستان چشم پزشکی نور- مرکز تحقیقات چشم هادی زارع مهرجردی h zare mehrjerdi noor ophthalmic research center, tehran, iranتهران- خیابان ولیعصر- خیابان اسفندیاری- بیمارستان چشم پزشکی نور- مرکز تحقیقات چشم آرش معذوری a mazori eye research center, farabi hospital, tehran university of medical sciences, tehran, iranتهران- خیابان ولیعصر- خیابان اسفندیاری- بیمارستان چشم پزشکی نور- مرکز تحقیقات چشم الهام اشرف

purpose: to evaluate residual refractive errors after cataract surgery and its determinant factors at farabi eye hospital, tehran. methods: simple random sampling was done among cataract surgery scheduled patients over a 4 year period (2003-2006). exclusion criteria were uveitis, previous intraocular surgery and ocular trauma. after applying the exclusion criteria, 423 patients were studied. le...

Journal: :Scientific Journal of Reflection 2022

The purpose of this research is to test and analyze the compliance MSME taxpayers in Karo Regency. total population study was 10,440 MSMEs recorded at Regency Cooperative, Employment Service from agriculture, industry, services tourism sectors. A sample 100 SMEs determined using Slovin size formula. sampling technique used simple purposive random technique. Data were analyzed descriptive statis...

The main purpose of the study was to investigate the effect of human resource management strategies on competitive advantage. In terms of applied purpose, the research was a correlational survey. The statistical population of the study was 1500 employees of the National Iranian Oil Company. 306 people were selected based on Cochran's formula as a statistical sample by simple random sampling met...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
سعید فعلی دانشجوی دکتری ترویج و آموزش کشاورزی دانشگاه تربیت مدرس نگین بیگلری دانش آموخته کارشناسی ارشد ترویج و آموزش کشاورزی دانشگاه تربیت مدرس غلامرضا پزشکی راد دانشیار دانشکده کشاورزی دانشگاه تربیت مدرس

higher education system, as an investment in human resources, plays a key role in training people. it also plays a determinant role in different political, social, economic and cultural aspects of the society. therefore, ensuring the quality of performance in higher education to prevent the waste of human and financial resources along with possessing the ability to compete in the future, wherei...

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