76 resultados para interpreting paradigm


Relevância:

20.00% 20.00%

Publicador:

Resumo:

Background: Dietary fatty acids may be associated with diabetes but are difficult to measure accurately.

Objective: We aimed to investigate the associations of fatty acids in plasma and diet with diabetes incidence.

Design: This was a prospective case-cohort study of 3737 adults aged 36-72 y. Fatty acid intake (/kJ) and plasma phospholipid fatty acids (%) were measured at baseline, and diabetes incidence was assessed by self-report 4 y later. Logistic regression excluding (model 1) and including (model 2) body mass index and waist-hip ratio was used to calculate odds ratios (ORs) for plasma phospholipid and dietary fatty acids.

Results: In plasma phospholipid, positive associations with diabetes were seen for stearic acid [OR model 1, highest versus lowest quintile: 4.14 (95% CI: 2.65, 6.49), P for trend < 0.0001] and total saturated fatty acids [OR model 1: 3.76 (2.43, 5.81), P for trend < 0.0001], whereas an inverse association was seen for linoleic acid [OR model 1: 0.22 (0.14, 0.36), P for trend < 0.0001]. Dietary linoleic [OR model 1: 1.77 (1.19, 2.64), P for trend = 0.002], palmitic [OR model 1: 1.65 (1.12, 2.43), P for trend = 0.012], and stearic [OR model 1: 1.46 (1.00, 2.14), P for trend = 0.030] acids were positively associated with diabetes incidence before adjustment for body size. Within each quintile of linoleic acid intake, cases had lower baseline plasma phospholipid linoleic acid proportions than did controls.

Conclusions: Dietary saturated fat intake is inversely associated with diabetes risk. More research is required to determine whether linoleic acid is an appropriate dietary substitute.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Text-based information accounts for more than 80% of today’s Web content. They consist of Web pages written in different natural languages. As the semantic Web aims at turning the current Web into a machine-understandable knowledge repository, availability of multilingual ontology thus becomes an issue at the core of a multilingual semantic Web. However, multilingual ontology is too complex and resource intensive to be constructed manually. In this paper, we propose a three-layer model built on top of a soft computing framework to automatically acquire a multilingual ontology from domain specific parallel texts. The objective is to enable semantic smart information access regardless of language over the Semantic Web.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The socio-technical framework (STF) is useful for describing how technologies are embedded in social systems and how people, groups and technologies are interrelated. This perspective, however, lacks theoretical specificity and has limited usefulness in explaining the dynamics of actual situations. In this paper we address the question of how to extend the STF to better analyse technologies in their social context. We build on the STF by including the concept of ‘information ecology’ and research on service provision to suggest a more empirically focussed way of analysing the relationships between people and technologies. In particular, we examine changes that have occurred as B2C eCommerce technologies have been implemented in service organisations, using case study findings from retail banking to introduce the concept of ‘Coactive Commerce Systems’. This concept provides a theoretically based descriptor for understanding the technologically-mediated interrelationships between organisations and their customers.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper develops a causal model of environmental attitudes using measures of the dominant social paradigm of Western industrial societies. Four components of the DSP framework are examined with regard to environmental attitudes and perception of change using a sample of university students from Australia and New Zealand. The results indicate that one’s belief in the DSP has a negative effect on both environmental attitudes and perception of change necessary to ameliorate degradation of the environment. Thus, while public policy favors increasing awareness of and interest in the environment, policy instruments may remain ineffective in producing lasting change if the components of the DSP remain unchanged. It is argued that public policy ought to be directed at changing the DSP so that its negative effects will be minimized.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

The accounting profession, like all professions, has a commitment to advance the interests of the general community, as well as those they are contractually bound to serve. Providing services altruistically, at times without compensation, is a salient feature of the public interest ideal. A review of the literature indicates that the profession has abandoned its public interest role so that serving self-interest now appears to have primacy ( Bédard 2001 ; Canning and O'Dwyer 2001 ; Parker 1994 ; Saravanamuthu 2004 ). The aim of this paper is to examine members' interpretation of the public interest ideal and to elicit their perceptions on issues arising from the literature. The results of a survey to members of CPA Australia indicate that members can iterate the formal definition of the public interest, but their application of the public interest in conflict of interest situations is inconsistent with this definition.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

Risk allocation in public-private partnership (PPP) projects is currently claimed as capability driven. While lacking theoretical support, the claim is often 'violated' by current industrial practice. There is thus a need for formal mechanisms to interpret why a particular risk is retained by government in one project while transferred to private partners in another. From the viewpoint of transaction cost economics (TCE), integrated with the resource-based view (RBV) of organizational capabilities, this paper proposed a theoretical framework for understanding risk allocation practice in PPP projects. The theories underlying the major constructs and their links were articulated. Data gathered from an industry-wide survey were used to test the framework. The results of multiple linear regression (MLR) generally support the proposed framework. It has been found that partners' risk management routine, mechanism, commitment, cooperation history, and uncertainties associated with project risk management could serve to determine the risk allocation strategies adopted in a PPP project. This theoretical framework thus provides both government and private agencies with a logical and complete understanding of the process of selecting the allocation strategy for a particular risk in PPP projects. Moreover, it could be utilized to steer the risk allocation strategy by controlling certain critical determinants identified in the study. Study limitations and future research directions have also been set out.

Relevância:

20.00% 20.00%

Publicador:

Resumo:

This paper explores a new paradigm in housing, where dwellings will be pre-fabricated, modular, energy efficient, transportable and use renewable and/or recyclable resources. The paper reviews previous attempts to produce housing, which meets some of the criteria for this new paradigm. Their advantages and disadvantages are discussed. An approach towards a new type of modular prefabricated unit is proposed. A preliminary energy analysis, comparing a present relocatable classroom construction with one upgraded, is provided as an example towards low energy building operation. Finally, conclusions are drawn about the requirements of future housing if we are to progress towards sustainability.