a systemic approach to tourism may be regarded as a comprehensive measure to appreciate, analyze, plan and mobilize tourism as an industry. through such an approach, one may investigate and bring into alignment factors influencing tourism (such as tourists, the host society, institutes associated with tourism, and the environment) as an interrelated system of elements. to put it another way, a ...

The methods of assessing the individuals’ performance usually applied in practice are based on principles of the bivalent logic (yes-no). However, fuzzy logic, due to its nature of including multiple values, offers a wider and richer field of resources for this purpose. In this paper we use principles of fuzzy logic in developing a new method for assessing the performance of groups of individua...

Introduction: Every year several disease outbreaks, such as influenza-like illnesses (ILI) and other contagious illnesses, impose various costs to public and non-government agencies. Most of these expenses are due to not being ready to handle such disease outbreaks. An appropriate preparation will reduce the expenses. A system that is able to recognize these outbreaks can earn ...

Background: Skin cancer is one of the most common forms of cancer in the world and melanoma is the deadliest type of skin cancer. Both melanoma and melanocytic nevi begin in melanocytes (cells that produce melanin). However, melanocytic nevi are benign whereas melanoma is malignant. This work proposes a deep learning model for classification of these two lesions.    Methods: In this analytic s...

hysteresis has been widely recognized in the soil water relationship. in this paper, a detailed review of hysteresis was performed in relation to its models. so far, different models have been suggested to describe hysteresis in the water retention curve (wrc) that could be categorized into two main groups: conceptual and empirical models. the models in the first group are based on the domain t...

this research was performed to recognize the ways ofbusiness model designing and explaining about the use of businessmodel in technology-oriented firms and enterprises, and leads them towands the implementation of the plans and new ideas in order to enter tolabor market or maintenance of their situation in internal and globalmarkets. the essay was considering the concept of business model andth...

the main purpose of this paper is identifying the current situation of iranian digital libraries in terms of interoperability abilities and proposing an interoperability solution for iranian digital libraries. analytical survey is used in this research. in fact, questionnaire and observation were used for collecting data about the current situation of iranian digital library applications. the g...

abstractone challenge face political system is implementation national development. there are various models for national development. some countries have relied on import model, but other has emphasis on their indigenous, the purpose of this study is designing intelligence development model in iranian national context. based on the selected theory building methodology, we have theorized intell...