نتایج جستجو برای: online scientific social networks

تعداد نتایج: 1525372  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم اجتماعی و اقتصادی 1389

abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...

Journal: :مطالعات و تحقیقات اجتماعی ایران 0
حمید عبداللهیان استاد گروه ارتباطات، دانشکدة علوم اجتماعی دانشگاه تهران حسین کرمانی دانشجوی دکتری علوم ارتباطات اجتماعی، دانشکدۀ علوم اجتماعی دانشگاه تهران

abstract: the objective of this paper is to measure and explain the relationship between facebook users’ social capital and their political participation in real world. following political changes in the world and in the middle east, there are growing interest among researchers to work on political participation and facebook usage. we therefore developed this interest into this research paper i...

ژورنال: کومش 2019
Deimazar , Ghasem , Forouzan , Maryam , Kahouei , Mehdi , Skandari , Fatemeh ,

Introduction: Social Networks has entered teenagers' lives increasingly. Over 90% of teenagers use social networks during day and night. Evidences suggest that there's an increasing connection between social networks use and different aspects of teenager's health, including sleep quality and mental health. The aim of is this study is to do a survey effects of online social networks on sleep qua...

There are some critical privacy concerns in the current online social networks (OSNs). Users' information is disclosed to different entities that they were not supposed to access. Furthermore, the notion of friendship is inadequate in OSNs since the degree of social relationships between users dynamically changes over the time. Additionally, users may define similar privacy settings for their f...

Background and Objective: This study aimed to investigate the relationship between the use of mobile based virtual social networks with academic achievement and  trust in interpersonal relations of university students Of Medical Sciences was conducted. Materials and Methods: This study was descriptive correlational. The study population included college of Public Health students and stu...

Purpose: This research aims to investigate accidental discovery of information in using of social networks and online communication in Shiraz University. Methodology: This is an applied research that uses descriptive analytical techniques. In order to determine the validity of the questionnaire the comments  of a number of experts and professors were asked,  and by using Cronbach’s Alfa its ...

Journal: :CoRR 2015
David Burth Kurka Alan Godoy Fernando José Von Zuben

The emergence and popularization of online social networks suddenly made available a large amount of data from social organization, interaction and human behavior. All this information opens new perspectives and challenges to the study of social systems, being of interest to many fields. Although most online social networks are recent (less than fifteen years old), a vast amount of scientific p...

2009
Jinwei Cao Tiffany Knotts Jennifer Jie Xu Michael Chau

This paper proposes a research agenda for studying factors that may affect marketing effectiveness in the context of online communities. Findings of prior studies are synthesized into a more comprehensive review of the state of the art of research on word of mouth marketing through online social networks. Based on the review, we propose a research model that incorporates both network and indivi...

2010
Xiaoquan Zhang Chong Wang

This paper studies the effect of social-role identity salience in social networks on user participation in an online community that facilitates user rating, reviewing and discussing of cultural products. Drawing on previous literature on social preference, we develop a model demonstrating how the salience of friendship identity changes equilibrium participation behaviour. Predictions are tested...

Journal: طب جنوب 2019
Ali Hamidi, Reza Basirian Jahromi, Sara Dehghani,

Background: As social networks are increasingly used, the research published through social networks should be evaluated. Hence, new measures were employed to examine the scientific effectiveness of social networks. The measurements taken from social networks, called Altmetrics, provide an opportunity to evaluate research. Therefore, this study aimed to investigate the presence of indexed artic...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید