نتایج جستجو برای: population mean of family
تعداد نتایج: 21251063 فیلتر نتایج به سال:
background : population growth is still a global concern. in spite of the decrease in population growth and conception rate, iran and the world population will grow in coming years. participation of men in contraception interventions to control population growth is of great importance. methods : this is a quasi-experimental study, in which the authors provided group training of contraceptive me...
Introduction: Family is the main part of a society and achieving a healthy society is because of a healthy family. Exact description of societal characteristics requires studying profoundly and clearly about the family relationship in that very society. Therefore, the most important thing for improving a society is to improve the family and the relationship between its members. Objectives: T...
rating of stressor events and their relationship with mental disorders in zahedan general population
psychosocial stresses, as one of the causative factors of mental and physical disorders, are considered to be important health issues. thus, for identifying vulnerable groups, it is necessary to identify and evaluate these stressors. the purpose of this study is to review the relationship between stress and incidence of mental disorders and to quqntify this relationship and to compare psychiatr...
abstract cooperative learning refers to small groups of learners working together as a team to solve a problem, complete a task, or accomplish a common goal. in a cooperative environment one’s success is directly related to the success of other members because the focus on the individual shifts towards the group. to test the effectiveness of the method, using jigsaw technique, a study was cond...
In this paper a family of estimators for estimating mean, ratio and product of two means of a finite population has been suggested and studied under the two different situations of random non-response considered by Tracy and Osahan (1994), Singh and Joarder (1998) and Singh, Joarder and Tracy (2000). Asymptotic expressions of biases and mean squared errors of the proposed families have been der...
introduction: family planning is the most effective strategy in reducing the world population. family planning was replaced by reproductive health since 1994 and the role of men is one of the most important aspects of this program. therefore, determination of men's knowledge in family planning and the role of education in enhancing the awareness are important. this study has been performed...
بررسی فونستیک کنه¬های پیش¬استیگما prostigmata)) باغ¬های زیتون استان گیلان طی سال¬های 1392-1391 انجام شد. کنه¬ها از نمونه¬های اندام¬های گیاهی، خاک و علف¬های هرز جداسازی شدند. سپس کنه¬ها به¬وسیله محلول نسبیت شفاف¬ و در محیط هویر از آن¬ها اسلاید میکروسکوپی تهیه شد. در مجموع، 28 گونه متعلق به 21 جنس و 14 خانواده شناسایی شدند. از این میان 5 جنس و 10 گونه برای استان گیلان و 1 گونه برای دنیا جدید می¬ب...
چکیده: کنه ها تنها زیر رده ای از رده عنکبوت مانندها هستند که در عرصه های مختلف کشاورزی، جنگلی و مرتعی به فراوانی یافت می شوند. برخی از آنها گیاهخوار بوده و برخی دارای رفتار شکارگری و پارازیتی می باشند. بعضی از آنها با حشرات خسارتزای درختان میوه، بویژه حشرات مکنده (شته ها، شپشک ها)، چوبخوارها و پوستخوارها مرتبط بوده و در کاهش انبوهی جمعیت آنها موثر هستند. در این مطالعه کنه های شکارگر و پارازیت...
the present study sought to investigate the impact of using mind-mapping technique instruction on female elementary efl learners reading comprehension; it also investigated their attitudes towards using mind-mapping technique as a tool to improve their reading comprehension. this study followed a quasi-experimental design with two intact groups as experimental, and control groups. the participa...
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