درخت حوزه‌های تخصصی

University students are exposed to stress because of their age and their particular situation. Stress can cause serious problems to the health and academic performance of students. One of the factors affecting stress is the environment. Therefore, finding ways to reduce stress in universities is important and needs to be investigated. Unfortunately, one of the fundamental problems of universities is the lack of features and qualities of a space that reduces the stress of students. This means that university spaces are not designed and constructed for reducing the stress of students and enough attention was not paid to this issue. The relative lack of research in this field makes necessary to pay attention to this issue and carry out studies in this regard. The purpose of this study is to provide effective spatial features to reduce the stress of university students and to determine the effectiveness of each of these features. The research is conducted by survey method and Delphi technique was carried out in three rounds. For this purpose, firstly open-ended questionnaires were distributed among the experts. Then the answers were investigated and the lists of features were extracted. In the next step, based on the information obtained, close-ended questionnaires were made and the importance levels of features were put into question among the experts and then data were analyzed using SPSS software. In the final stage, experts expressed their final opinions considering the statistical results of the previous stage. The results of this study showed that effective spatial features on stress reduction of students are classified by influencing level into four categories of environmental conditions, natural factors, environmental comfort and physical aspects. And among the details of these features, adequate and proper light for spaces”, connecting with outdoor and semi-outdoor spaces and desirable sound in spaces, are of utmost importance.

The basic objective of this study is to design the model of effectiveness of electronic advertisement on consumer buying behavior. The research population is customers and consumers of large food stores in Shiraz that used a store's website. The sample of this study is as big as 400 people. Cluster random sampling method based on visible traits in the population with the highest estimated number of customers with a cautionary view was carried out. To evaluate the reliability of the questionnaire in this study, Cronbach's alpha was used. Cronbach's alpha was estimated 92%for the whole questionnaires and fluctuated between76%and 98% for its subscales. In order to analyze the data of questionnaires and to test the hypotheses, factor analysis and structural equation modeling techniques were used. The results show that by rejecting the first hypothesis and confirming the rest of assumptions and other relationships between the independent, mediator and dependent variables, the whole model is generally acceptable. This means that content and communication stimuli would get to the behavioral reaction phase after the process of influencing.

The problem which has been the focus of city constructors and architectures since the beginning of citizenship life is the issue of the nature of environmental quality. This study, with a review of explaining paradigms of environmental quality and by reliance on basic works, has assumed the question of nature of environmental quality an interdisciplinary concept (civic construction, sociology, psychology) and is in seek of explaining perceptive quality factors from citizens' perspective. Since the nature of this study is multidimensional and understanding of its different aspects and answering of its relevant questions bounds researcher both to test present theories and to understand mental world of his or her subjects, therefore, synthetic approach has been applied for methodology of it. It should be mentioned that Delphi method has been applied so as to obtain different indices and factors of the study. To determine the unit of sampling, multiple-stage clustering sampling method has been used in a way that between 22 regions of Tehran municipality, based on their development, first 6 regions were selected and in the next stage all the local states of those 6 regions were listed and then six local states were randomly selected. Size of the sample of this study is 200 persons. The results show that most of the perceptive factors derived from qualitative section of the research conform to factors derived from quantitative section and questionnaire. In other words factors derived from qualitative section are the same as those derived from quantitative factors. The significant point to notice in this section is that some of the derived factors from this section couldn’t be categorized by previous theories but rather they belong to the research community of this study (i.e. local states of Tehran). Thus we can state that the total perceptive criteria of environmental quality of these local states are as follows: legibility, place atmosphere, permeability, peace, tranquility, liveliness, sensational rapture, time sense, civil justice, security, human standard, sociability.