In this survey, we give an overview over some aspects of the set of tilting objects in an $m-$cluster category, with focus on those properties which are valid for all $m geq 1$. We focus on the following three combinatorial aspects: modeling the set of tilting objects using arcs in certain polygons, the generalized assicahedra of Fomin and Reading, and colored quiver mutation.

This paper makes a thorough analysis of the return to tertiary education and education-occupation matching within the transition economy compared to a developed economy. We show through the example of the Russian Federation that the increase in the return to education which happened in previous years does not indicate that the labour market is becoming closer to that of developed countries. We ...

In 2009, a preliminary framework for how climate change could affect worker safety and health was described. That framework was based on a literature search from 1988-2008 that supported seven categories of climate-related occupational hazards: (1) increased ambient temperature; (2) air pollution; (3) ultraviolet radiation exposure; (4) extreme weather; (5) vector-borne diseases and expanded ha...

Background: The main object of this study was to determine the frequency of occupational categories of men who attended an infertility clinic, and to evaluate the differences in the semen quality parameters among occupational categories. Materials and Methods: This cross-sectional study was conducted on men who attended the Infertility Clinic of Royan Institute, located in Tehran, Iran. The stu...

background: it is the responsibility of each occupational therapist to always act ethically and professionally in a clinical setting. however, there is little information available concerning the factors influencing ethical behavior of occupational therapists at work. since no study has been conducted in iran on this topic, this qualitative study aimed to identify the factors influencing ethica...

BACKGROUND In industrializing countries, occupational safety and health have been affected by globalization. However, a lack of reliable data prevents evaluation of this situation. Therefore, we examined industrial distributions and risks of severe occupational injuries among workers in Thailand, which is one of the few industrializing countries that compiles nationwide data. METHODS Data on ...

OBJECTIVE To estimate the number of annual deaths, as well as the direct and indirect costs of occupational COPD and asthma, in the United States in 1996. DESIGN Aggregation and analysis of national data sets collected by the National Center for Health Statistics, the Health Care Financing Administration, and other government bureaus and private firms. To assess mortality, we reviewed data fr...

Occupation was evaluated as a potential risk factor for lung cancer as part of a large population based case-control study conducted in the ten urban districts of Shanghai. A total of 733 newly diagnosed cases of male lung cancer and 760 controls selected from the general population was interviewed to obtain lifetime occupational histories and information on smoking and other factors. Of the ap...

This study examined the relation between occupation and cardiovascular disease (CVD) risk factors in 2,795 individuals between ages 35 and 54 years from the rapidly developing island nation of Mauritius. Participants attended a 1992 population-based survey of noncommunicable disease (89.1 % response rate). Occupational status, physical activity in the previous year, cigarette smoking, and alcoh...