نتایج جستجو برای: qualitative model
تعداد نتایج: 2272955 فیلتر نتایج به سال:
Background: Family faces different hardships and challenges that are such stressful that can destroy it. No doubt that we need to protect and last family. So, this research aims at developing a local model for family resilience. Methods: To do so, at primer level 13 couples who qualified the criteria, were selected through purpose-focused, available, and voluntary sampling method. In order to i...
The purpose of this study is to present a model for employee absenteeism management using Grounded Theory (GT). Since there is a lack of study on theorizing this construct, this study aimed to conceptualize a theoretical model applying GT. This research is a qualitative research. The sample size was 11 interviewers who were knowledgeable human resource and organizational experts. Required data ...
abstract this mixed method study examines whether there is any relationship among the variables of the study (job satisfaction, social capital and motivation). the researcher considered job satisfaction and social capital as independent variables; motivation is the dependent variable of the study. the researcher applied a questionnaire to assess each variable. to measure efl teachers’ job sati...
We consider qualitative and quantitative model-checking problems for probabilistic pushdown automata (pPDA) and various temporal logics. We prove that the qualitative and quantitative model-checking problem for ω-regular properties and pPDA is in 2-EXPSPACE and 3-EXPTIME, respectively. We also prove that model-checking the qualitative fragment of the logic PECTL∗ for pPDA is in 2-EXPSPACE, and ...
the main purpose of this study was to investigate of economic impacts of soleimanshah dam on rural development in regions that are under influence of irrigation and drainage network of dam. in this research quantitative-qualitative research method was used and information gathered with questionnaire, interview, and direct observation. statistical population of research in qualitative part consi...
Usually mathematicians use Hodgkin-Huxley model or FitzHug-Nagumo model to simulate action potentials of skeletal muscle fibers. These models are electrically excitable, but skeletal muscle fibers are stimulated chemically. To investigate skeletal muscle fibers we use a model with six ordinary differential equations. This dynamical system is sensitive to initial value of some variables so it is...
Abstract: This research has been done to develop and validate an instructional design model based on mental model theory. Based on mental model theory human being can do reasoning and problem solving through mental models. The main purpose of this model is to help pupils construct mental models, gain expertise and promote problem solving. In order to develop this model and response to research ...
In this paper we study complexity of the model-checking problem for probabilistic pushdown automata (pPDA) and qualitative fragments of two branching-time logics PCTL∗ and PECTL∗. We prove that this problem is in 2-EXPTIME for pPDA and qualitative PCTL∗. Consequently, we prove that model-checking of stateless pPDA (pBPA) and both qualitative PCTL∗ and qualitative PECTL∗ is 2-EXPTIME-hard. These...
Background: Marketing has for many years been working to reduce environmental concerns by relying on ethics and presenting new marketing ideas such as green marketing. Therefore, the present study aimed to provide a model of the green marketing process in the pharmaceutical industry. Method: This applied research was conducted with a mixed (quantitative - qualitative) approach. In the qualitat...
I Design is an important but little understood intelligent activity. Conceptual design is the transformation of functional specifications to an initial concept of an artifact that achieves them. Human designers rely heavily on the use of sketches, which can be thought of as qualitative models of a device. An appealing model of conceptual design is that of a mapping from qualitative functional s...
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