936 resultados para Reproductive Success
Resumo:
24x7 presentation at Open Repositories 2015, Indianapolis, June 10, 2015.
Resumo:
Organotin compounds are typical environmental contaminants and suspected endocrine-disrupting substances, which cause irreversible sexual abnormality in female mollusks, called "imposex". However, little is known about the capability of triorganotin compounds, such as tributyltin and triphenyltin, to cause disorders in the sexual development and reproductive functions of mammals, including humans and rodents. Moreover, these compounds can act as potential competitive inhibitors of aromatase enzyme and other steroidogenic enzymes, affecting the reproductive capacity of male and female mammals. In this review, we discuss the cellular, biochemical, and molecular mechanisms by which triorganotin compounds induce adverse effects in the mammalian reproductive function.
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This study investigates societal effectiveness of transport sector’s Research & Development (R&D) operations. In this study effectiveness refers to organization’s capability to produce the intended and desired impacts through its operations. The aim of this study is to identify the motives for evaluating societal effectiveness and recognize the critical success factors for improving effectiveness. The theoretical framework focuses first in the policy context of effectiveness evaluation in public sector and secondly the framework introduces the concept and process of effectiveness evaluation. The empirical part is carried out as a case study, which investigates societal effectiveness of Finnish Transport Agency’s (FTA’s) R&D. The aim is to recognize FTA’s critical success factors for improving R&D operations’ societal effectiveness. Based on these factors, the organization is able to define indicators for measuring effectiveness in the future operations. In this study societal effectiveness is investigated from R&D purchasers’ and R&D end- users’ points of views according to Purchaser-Provider-model. The results indicate that societal effectiveness evaluation is important part of R&D operations, but the implementation of the evaluation as part of daily operations is challenging. Because of limited resources, the organization is forced to strong priorization and therefore R&D tasks are secondary after the operational tasks. Based on the results the critical success factors can be recognized as resources and priorization, clear strategy and objectives, internal communications, cooperation between public and private sector and R&D implementation and dissemination.
Resumo:
The main purpose of this study is to identify the elements of children's health games that have a positive impact on children’s health. The investigation is done by evaluating previous health game studies concentrating on children and five health affairs (such as asthma, cancer, diabetes, nutrition and obesity). In order to do so, firstly the topic of children’s health games is explained through its roots, as it is an interdisciplinary topic pertinent with many other fields. For this reason, the topics regarding the children’s health games as games, video games, children’s gameplay, and serious games along with health, relevant health affairs, and health promotion were covered. Secondly, the meta-study was conducted with the 56 articles on children’s health games. These 56 articles were analyzed with the coding technique defined by Charmaz’s Grounded Theory Method (Charmaz, 2006) for finding out which elements of children’s health games have a positive impact on children’s health promotion. The main result suggests that, although there are 24 different elements found and listed which all positive in their nature, their positive impact is a matter of how they are used or implemented through the consumption cycle of children’s health games and how all these elements interact with each other. In addition to this, a pragmatic proposal is formulated for possibly better or more successful health games. The study concludes with the declaration of the limitations encountered through the research and the recommendations for future research.