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  • Springer Science and Business Media LLC  (3)
  • 2015-2019  (3)
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  • Springer Science and Business Media LLC  (3)
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  • 2015-2019  (3)
Year
  • 1
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2015
    In:  Journal of Environmental Health Science and Engineering Vol. 13, No. 1 ( 2015-12)
    In: Journal of Environmental Health Science and Engineering, Springer Science and Business Media LLC, Vol. 13, No. 1 ( 2015-12)
    Abstract: The present study aimed at demonstrating the heat stress situation (distribution and intensity) based on a standard and common heat stress index, Wet Bulb Globe Temperature (WBGT), during hot seasons and interpret the obtained results considering global warming and rising temperature in different parts of the country based on climate changes studied in Iran. Methods Heat stress assessment was done using WBGT index. Environmental parameters were measured simultaneously in the early, middle and end of shift work. The personal parameters including cloth thermal insulation and metabolic rate of 242 participants from 9 climatic categories were recorded for estimating effective WBGT (measured WBGT plus cloth adjustment factor as well as metabolic rate effect). The values of the indicator were categorized in the statistical software media and then linked to the climatic zoning of the data in the GIS information layers, in which, WBGT values relating to selected stations were given generalization to similar climatic regionalization. Results The obtained results showed that in the summer about 60 % and more than 75 % of the measurements relating to 12 pm and 3 pm, respectively, were in heat stress situations ( i.e. the average amount of heat stress index was higher than 28 °C). These values were found to be about 20–25 % in the spring. Moreover, only in the early hours of shift work in spring could safe conditions be seen throughout the country. This situation gradually decreased in the middle of the day hours and was replaced by the warning status and stress. And finally, in the final hours of shift work thermal stresses reached their peaks. These conditions for the summer were worse. Conclusions Regarding several studies related to climate change in Iran and the results of present study, heat stress, especially in the central and southern parts of Iran, can be exacerbated in the decades to come if climate change and rising temperature occurs. Therefore, paying attention to this critical issue and adopting macro-management policies and programs in the field of workplace health is essential.
    Type of Medium: Online Resource
    ISSN: 2052-336X
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2015
    detail.hit.zdb_id: 2756287-6
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  • 2
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2015
    In:  International Journal of Obesity Vol. 39, No. 8 ( 2015-08), p. 1188-1196
    In: International Journal of Obesity, Springer Science and Business Media LLC, Vol. 39, No. 8 ( 2015-08), p. 1188-1196
    Abstract: Obesity is a major global health problem and predisposes individuals to several comorbidities that can affect life expectancy. Interventions based on lifestyle modification (for example, improved diet and exercise) are integral components in the management of obesity. However, although weight loss can be achieved through dietary restriction and/or increased physical activity, over the long term many individuals regain weight. The aim of this article is to review the research into the processes and mechanisms that underpin weight regain after weight loss and comment on future strategies to address them. Maintenance of body weight is regulated by the interaction of a number of processes, encompassing homoeostatic, environmental and behavioural factors. In homoeostatic regulation, the hypothalamus has a central role in integrating signals regarding food intake, energy balance and body weight, while an ‘obesogenic’ environment and behavioural patterns exert effects on the amount and type of food intake and physical activity. The roles of other environmental factors are also now being considered, including sleep debt and iatrogenic effects of medications, many of which warrant further investigation. Unfortunately, physiological adaptations to weight loss favour weight regain. These changes include perturbations in the levels of circulating appetite-related hormones and energy homoeostasis, in addition to alterations in nutrient metabolism and subjective appetite. To maintain weight loss, individuals must adhere to behaviours that counteract physiological adaptations and other factors favouring weight regain. It is difficult to overcome physiology with behaviour. Weight loss medications and surgery change the physiology of body weight regulation and are the best chance for long-term success. An increased understanding of the physiology of weight loss and regain will underpin the development of future strategies to support overweight and obese individuals in their efforts to achieve and maintain weight loss.
    Type of Medium: Online Resource
    ISSN: 0307-0565 , 1476-5497
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2015
    detail.hit.zdb_id: 2101927-7
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  • 3
    Online Resource
    Online Resource
    Springer Science and Business Media LLC ; 2018
    In:  WMU Journal of Maritime Affairs Vol. 17, No. 2 ( 2018-06), p. 129-147
    In: WMU Journal of Maritime Affairs, Springer Science and Business Media LLC, Vol. 17, No. 2 ( 2018-06), p. 129-147
    Abstract: A rather significant number of business entities already operate within (or, have considered to exploit) the Arctic region, focusing upon previously untapped resources such as precious minerals and large quantities of oil and gas; touristic and fishing activities are clearly on the rise, with various endeavors of maritime transport also being put forward. Up until recently, harsh year-long environmental conditions have significantly hindered the necessary access and transport connections in the Arctic. Even in the case that weather conditions did permit vessels’ passage, unreliable navigational aids and lack of infrastructure/support provided obstacles difficult to overcome. However, environmental data recorded during the last couple of decades clearly indicates that there is a continuous decline of ice coverage in the “High North.” Given this steady decline, the Arctic has now been viewed as a promising field for economic activities and is considered as a potential connecting corridor between Asia and Europe/America (and vice-versa). As human presence and operations are expected to intensify there, it is of utmost importance to evaluate the current level of support towards ships that will be crossing the region; capabilities in relation to search and rescue (SAR) operations and oil spill response are also important. The analysis in hand will first deliver a discussion of the so-called Arctic Passages. While various different maritime routes have been proposed in relation to the Arctic, the most promising one, the Northern Sea Route (NSR), will provide the epicenter of discussion. Through an extensive literature review that includes numerous internet resources, the current analysis will identify the numbers of icebreakers already operating in the NSR, as well as those that will be commissioned into service in the near future. The choice to research the specific type of vessels is supported by a simple argument: icebreakers currently are and will continue to be in the foreseeable future the main “tool” to support shipping activities in the Arctic. Furthermore, emergency management capabilities in the Russian Arctic will be examined to include the current state of rescue coordination centres along with the availability of SAR assets. Additionally, the efforts thus far by the Arctic Council to increase coordination and interaction among the States involved in Arctic affairs will be summarized; the latter will be achieved via a brief review of a very important legally binding agreement: the “search and rescue” instrument. In conclusion, the Russian State has already heavily invested in icebreakers’ building and their current number is fully capable to handle the present level of limited traffic. On the other hand, ships are currently faced with long distances to cross (often without adequate support) adverse environmental conditions, unpredictable hurdles, and slow response times in case of an emergency. Therefore, in case ships operating in the region are increased, it will be difficult to deal with all the additional demands for support. Of particular interest is the fact that considering the vast area of the NSR, the overall available response capabilities in the region under discussion are rather thin; any further increase of maritime traffic in the “High North” must be balanced with additional strengthening of emergency management capabilities. In any case, should the NSR become fully integrated in the global maritime transport system, Russia’s geopolitical status will be clearly improved and further research is needed to discuss the implications both at the regional and global levels.
    Type of Medium: Online Resource
    ISSN: 1651-436X , 1654-1642
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2018
    detail.hit.zdb_id: 2587034-8
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