959 resultados para EMPIRICAL-EVIDENCE


Relevância:

60.00% 60.00%

Publicador:

Resumo:

This thesis sought to advance understanding of the politics of workplace reform, explaining the respective roles of management and employees and how they relate. The literature on workplace reform usually argues that reform is predicated on greater workforce participation in managerial decisions. More specifically, different approaches to workplace reform can be aligned to different forms of participation. Thus quality management can be associated with direct forms of participation, institutional workplace reform may depend on representative forms, and best practice may require a combination of both. This thesis uses empirical evidence to explore this alignment between the different approaches to workplace reform and forms of participation. The period chosen for empirical study is approximately 1985-1992 - an era of rapid innovation in workplace reform for Australian manufacturing. Three workplaces were chosen for intensive study from automotive component manufacturers because that industry was itself a laboratory for workplace reform and also because these firms exemplified different approaches to competitiveness and reform. Three approaches to workplace reform - quality management, institutional workplace reform, and best practice - were distinguished to capture the range of Australian practice at that time. Similarly two approaches to workplace participation were distinguished - direct and representative - to reflect the range of observable practices at that time and to represent competing philosophies. Direct participation illustrated an approach founded in managerial context of the political status quo, whilst representative forms were considered to permit a pluralist shift of power to enable employees to manage in place of management. The three case studies depict companies sharing the competitive crisis of their industry. From this stems the impetus for workplace reform. At this point the firms diverged in their choice of competitive strategies for workplace reform. The case studies reveal, at the superficial level, a match between the chosen approaches to workplace reform and forms of participation. Basically, quality management is associated with direct employee participation, institutional workplace reform with collective bargaining and representative consultative committees, and best practice with both. However when the implementation of reform and participation are examined this match becomes less significant. One firm, Auto Air, achieved highly effective outcomes in both reform and participation. Another firm, Auto Electrical, failed in both. The thesis concluded that the relationship between forms of participation and reform is less significant than the effective implementation of policy. Unitarist or pluralist approaches to power distribution count less than managerial capacity to integrate successive reform initiatives and their commitment to workforce participation hi change.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

This study provides empirical evidence on the nature and extent of risks faced by Small to Medium-Sized Knowledge Intensive Firms (SMKIFs) and the risk management approaches adopted by them. The study also assesses the effects of selected organisational factors such as industry, entity size and risk governance leadership on the commitment by SMKIFs to using an Enterprise Risk Management (ERM) approach. Data was obtained through a questionnaire survey of SMKIFs in the state of Victoria, Australia which were either in the bio-technology (bio-tech) or the accounting and legal (business services) industry sectors. Based on a total of 104 (13%) useable responses from senior managers in charge of risk management, some of the key findings include the identification of the top three risks faced by SMKIFs being (i) potential damage to firm’s reputation, (ii) inability to recruit and retain workers who have appropriate skills and expertise, and (iii) increase in costs. Interestingly, while 51% of the respondents described their firms as being willing to or keen to take risks, 38% saw their firms as being either preferring not to take risks or refuse to take risks, with the remainder of the firms (11%) viewed as neutral. The data also indicates that more than half of the respondent firms (54%) had established either a complete or a partial ERM system. Further, data analysis based on a binary logit regression model indicates bio-techs, firm size and directors’ support of risk management as key predictors of ERM implementation in SMKIFs.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

There is increasing theoretical and empirical evidence that genetic compatibility among partners is an important determinant of fertilization success and offspring viability. In amphibians, females often actively choose partners from among a variety of males and polyandry is common. Genetic compatibility among partners may therefore be an important determinant of fertilization success and offspring viability in some amphibians. Amphibians also show some of the highest levels of genetic differentiation among neighbouring populations known in vertebrates, and as such, populations may have evolved different co-adapted gene complexes. This means that offspring from among-population crosses may have reduced fitness. It is therefore essential to understand to what extent crossings between and within populations may interfere with successful fertilization and offspring viability. Here, we test whether crossing individuals within and between two different populations of the Australian Peron's tree frog (Litoria peronii) using artificial fertilizations affect fertilization success and offspring viability. Fertilization success per se is strongly influenced by male identity, which is likely to depend at least to some extent on the experimental procedure (e.g. resulting in variation in sperm number per ejaculate), whereas there was no fertilization effect of female identity. More importantly, male and female identity, independently of each other, explained significant variation in offspring viability, whereas no such effect could be linked to population of origin. Thus, our experiments suggest that crossing populations may not always be the most significant factor affecting fertilization success or offspring viability, but may be more influenced by the genetic quality or the genetic compatibility of partners.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Most sporting codes encourage participation in Fantasy Sport (FS), despite few making direct revenue from it. There is a lack of empirical evidence whether this is good practice, for although FS can increase involvement and education, it may also compete with other forms of sport consumption for consumers limited resources. This study begins to address whether FS competes with or  complements sport consumption by comparing FS players with nonplayers. Data was collected from surveys (n=182) of AFL fans, with findings indicating FS players had higher tested measures of attitudes (e.g., team identification, commitment) and behaviours (e.g., game attendance, television viewing) related  to the sport. What remains to be determined is causality, and suggestions on how to examine this are given.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Despite the growing importance of the tourism industry, little is known about the determinants of tourism demand in Fiji. The major findings of analyses of the 1970?2000 period are that growth in income in Fiji?s main source countries for tourists leads to an increase in visitor arrivals, while relative prices and substitute prices negatively impact visitor arrivals in the long run. This implies that Fiji needs to maintain price competitiveness. Empirical evidence was also found that coups impede the short-run growth of the industry.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Objective : The purpose of this study was to validate measures of individual and organisational infrastructure for health promotion within Alberta's (Canada) 17 Regional Health Authorities (RHAs).

Design : A series of phases were conducted to develop individual and organisational scales to measure health promotion infrastructure. Instruments were designed with focus groups and then pre-tested prior to the validation study.

Setting : In 1993 all hospitals and Public Health Units in the province of Alberta were regionalised into 17 RHAs, with responsibility for public health, community health, and acute and long-term care. While regionalisation may offer more opportunity for community participation, reorganisation of the public health system may have fragmented and diluted resources and skills for heart health promotion in some RHAs. Infrastructure (for example, human and financial resources), amongst other items, is believed to contribute to the capacity to promote health.

Method : All 17 RHAs participated in the study, yielding a total of 144 individuals (that is board members, senior/middle management, and front line staff). These representative employees completed a self- administered questionnaire on individual- and organisational-level infrastructure measures.

Results : Psychometric analyses of survey data provided empirical evidence for the robustness of the measures. Principal component analyses verified the construct validity of the scales, with alpha coefficients ranging from 0.75 to 0.95.

Conclusion : The scales can be used by health professionals and researchers to assess individual- and organisational-level infrastructure, and tailor interventions to increase infrastructure for health promotion in health organisations.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Innovation is a valued organisational asset that may asssist the creation and maintenance of competitive advantage. A number of authors have proposed links between leadership, organisational climate and innovation, and these constructs appear to converge. This convergence led researchers to produce models of the interaction between the three constructs within organisations. It has generally been reported that leadership effects innovation and organisational climate or vise versa. However, to date there is no substantial, direct nor robust empirical evidence to informt his view. This book and detailed study addresses the relationship between leadership, organisational climate and innovation simultaneously. 

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Environmental disturbances in the Glenelg and Wimmera Rivers have been exacerbated by low flows. Consequently, environmental flows have been recommended although there is little empirical evidence of their effects. This thesis has shown that environmental flows are potentially beneficial in rivers subject to disturbances such as salinisation and sedimentation.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

This thesis proposes an innovative adaptive multi-classifier spam filtering model, with a grey-list analyser and a dynamic feature selection method, to overcome false-positive problems in email classification. It also presents additional techniques to minimize the added complexity. Empirical evidence indicates the success of this model over existing approaches.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

This thesis presents a longitudinal analysis of the strategic behaviour of Australian universities between 1993 and 2000. The findings suggest that Australian universities enunciate similar goals and objectives in their strategic planning, and that the activities of universities are largely determined by the patterns of activities undertaken in previous years. The empirical evidence suggests there is only a small amount of differentiation in the activities of Australian universities, despite a Government policy platform that identified institutional diversity as a primary goal.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

In the last decade, the Internet email has become one of the primary method of communication used by everyone for the exchange of ideas and information. However, in recent years, along with the rapid growth of the Internet and email, there has been a dramatic growth in spam. Classifications algorithms have been successfully used to filter spam, but with a certain amount of false positive trade-offs. This problem is mainly caused by the dynamic nature of spam content, spam delivery strategies, as well as the diversification of the classification algorithms. This paper presents an approach of email classification to overcome the burden of analyzing technique of GL (grey list) analyser as further refinements of our previous multi-classifier based email classification [10]. In this approach, we introduce a “majority voting grey list (MVGL)” analyzing technique with two different variations which will analyze only the product of GL emails. Our empirical evidence proofs the improvements of this approach, in terms of complexity and cost, compared to existing GL analyser. This approach also overcomes the limitation of human interaction of existing analyzing technique.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

Protecting user's mailbox from infiltration of phishing email is a significant research issue now a day. Many researches are going on filtering phishing using classification based algorithms and achieve substantial performance. It has been studied and investigated with different classification algorithms and observed that the outputs of the classifiers vary from one another with same corpora. This paper presents the impact of classifier rescheduling of multi-tier classification of phishing email to observe the best scheduling in the classification process. In our method, the features of phishing email will be extracted and classified in a sequential fashion by using the multi-tier classification and the outputs will be sent to the decision fusion process. Empirical evidence proofs that the impact of rescheduling of classifiers among the tiers gives diverse outcomes in terms of accuracy as well as number of false positive instances.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

In the last decade, the rapid growth of the Internet and email, there has been a dramatic growth in spam. Spam is commonly defined as unsolicited email messages and protecting email from the infiltration of spam is an important research issue. Classifications algorithms have been successfully used to filter spam, but with a certain amount of false positive trade-offs, which is unacceptable to users sometimes. This paper presents an approach of email classification to overcome the burden of analyzing technique of GL (grey list) analyzer as further refinements of synthesis based email classification technique. In this approach, we introduce a “majority voting grey list (MVGL)” analyzing technique which will analyze the GL emails by using the majority voting (MV) algorithm. We have presented two different variations of the MV system, one is simple MV (SMV) and other is the Ranked MV (RMV). Our empirical evidence proofs the improvements of this approach compared to existing GL analyzer [7].

Relevância:

60.00% 60.00%

Publicador:

Resumo:

In the last decade, the rapid growth of the Internet and email, there has been a dramatic growth in spam. Spam is commonly defined as unsolicited email messages and protecting email from the infiltration of spam is an important research issue. Classifications algorithms have been successfully used to filter spam, but with a certain amount of false positive trade-offs, which is unacceptable to users sometimes. This paper presents an approach to overcome the burden of GL (grey list) analyzer as further refinements to our multi-classifier based classification model (Islam, M. and W. Zhou 2007). In this approach, we introduce a ldquomajority voting grey list (MVGL)rdquo analyzing technique which will analyze the generated GL emails by using the majority voting (MV) algorithm. We have presented two different variations of the MV system, one is simple MV (SMV) and other is the ranked MV (RMV). Our empirical evidence proofs the improvements of this approach compared to the existing GL analyzer of multi-classifier based spam filtering process.

Relevância:

60.00% 60.00%

Publicador:

Resumo:

In this research paper, we explore the relationship between the commercialization of intellectual property created within Canadian universities and academic entrepreneurship education programs. The steady growth and importance of both these activities over the last twenty years highlights the value of empirically examining the linkages that may exist between them. This paper will endeavor to add to the limited research in these areas and provide both empirical evidence and theoretical support to improve definition and distinction of the roles of these two seemingly interrelated activities. The data tested suggest that the main driver of commercialization intensity is derived from the creation of an environment rich in IP. However, further study is required to enhance understanding. In particular, we need to know more about the impact that the development of entrepreneurial capacity within an institution may have upon the spin-out process.