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1.
The situation of nuclear-weapon states not parties to the NPT is different from the situation of the nuclear-weapon states parties to that treaty. This last group of countries has signed and ratified a treaty that encourage them to begin negotiations in good faith for the discussion of concrete measures that lead them to nuclear disarmament, while the first group of states have made no commitment to do that. In other words, nuclear-weapon states not parties to the NPT have made no commitment to nuclear disarmament and are not obliged to report anything related to the possession of nuclear weapons to the any specific body or organ or to the international community. Taking into account the position of nuclear-weapon states parties to the NPT regarding the possession of nuclear weapons, there is no possibility to convince nuclear-weapon states not parties to this treaty to renounce to the possession of this type of weapons under the present circumstances.  相似文献   

2.
How can organisations and territories contribute to maintain a high level of innovation while at the same time adapting to a turbulent environment? We give an answer to this question by mobilizing the concept of resilience. In order to do this, we develop a conception of resilience based on two dimensions. First, an organisational dimension which refers to the capacity of an organisation to manage a disturbance to its environment and to develop a new pathway and, a territorial dimension which refers to the collective capacity of the actors to contribute to facilitate the development of territorial responses to external disturbances. We illustrate this double dimension of resilience by focusing on the role of pivot firm as major actor in a territory.  相似文献   

3.
The Fama–French-Methodology (1993–1998) offers cross-sectional explanations of returns by taking the specially designed portfolios SMB and HML as additional factors. It is acknowledged that these factors are related to some forms of risk (they bear premia) which, by researchers is often proposed to be related to the uncertainty with respect to macroeconomic production and aggregate consumption. In more recent research a momentum factor is included in order to improve the explanatory power of the Fama–French-Model. We use data from business cycles 1926–2007 to show that SMB represents the risks related to the very early phase of an upswing while HML may be related to the uncertainty whether a business cycle will continue to gain depth and strength (or shifts back into recession). In contrast to SMB and HML, we do not find momentum to be related to risks associated with particular phases of the business cycle.  相似文献   

4.
基于社会资本的突发事件理论分析   总被引:9,自引:0,他引:9  
近年来,在全球频发的各种突发事件与社会资本运作空间的失当密不可分。在突发事件的前期,存在着社会资本原状与突发事件前期因子之间的不良互动和媾和,这种状态持续到质变的程度时,又在某种诱发因素的作用下,以积累爆发或扩散爆发等形式表现为突发事件,并产生一系列消极性的社会影响。突发事件发生和扩散的过程同时也是各种社会资本被动性应急调整、资本组织治理的过程。鉴于社会资本在突发事件中的动因作用,积极地改善社会资本的运作状况,消化突发事件的消极影响,改变社会资本误运作和优化社会资本结构的过程,对于减少突发事件的发生和积极的应对,具有十分重要的现实意义。  相似文献   

5.
《Omega》2007,35(5):623-626
In this paper we study the scheduling problem in which each customer order consists of several jobs of different types, which are to be processed on m facilities. Each facility is dedicated to the processing of only one type of jobs. All jobs of an order have to be delivered to the customer at the same time. The objective is to schedule all the orders to minimize the total weighted order completion time. While the problem has been shown to be unary NP-hard, we develop a heuristics to tackle the problem and analyze its worst-case performance.  相似文献   

6.
The role of G&S has shifted from a technical instrument to reduce transaction costs in homogeneous commodity markets to a strategic instrument of competition in differentiated product markets. The nature of G&S has shifted from performance (realized characteristics of the product) to process standards. In developing countries, these changes have tended to exclude small firms and farms from participating in market growth, because of the implied investments. The three strategic responses to G&S change by agribusiness firms and farms include: (1) by large firms and multinationals, to create private G&S and private certification, labeling, and branding systems; (2) by medium-large domestic firms, to lobby governments to adopt public G&S similar to those in export markets in developed regions; (3) by small firms and farms, to ally with public and nonprofit sectors to form G&S and certification systems to access export markets and to bring institutional change to nontradable product markets. Governments should build the capacity of the poor to invest to “make the grade” implied by the new G&S.  相似文献   

7.
8.
The purpose of this article is to describe a standard set of age groups for exposure assessors to consider when assessing childhood exposure and potential dose to environmental contaminants. In addition, this article presents examples to show how the age groups can be applied in children's exposure assessments. A consistent set of childhood age groups, supported by an underlying scientific rationale, will improve the accuracy and comparability of exposure and risk assessments for children. The effort was undertaken in part to aid the U.S. Environmental Protection Agency (EPA) in implementing such regulatory initiatives as the 1997 Presidential Executive Order 13,045, which required all federal agencies to ensure that their standards take into account special risks to children. The standard age groups include: birth to <1 month; 1 to <3 months; 3 to <6 months; 6 to <12 months; 1 to <2 years; 2 to <3 years; 3 to <6 years; 6 to <11 years; 11 to <16 years; and 16 to <21 years. These age groups reflect a consideration of developmental changes in various behavioral, anatomical, and physiological characteristics that impact exposure and potential dose. It is expected that the availability of a standard set of early-life age groups will inform future analyses of exposure factors data as well as guide new research and data collection efforts to fill knowledge gaps.  相似文献   

9.
Sir Hugh Ford 《Omega》1977,5(2):121-132
Despite the creativity of British engineers, British industry continues to lack innovative drive because of a climate inimical to commercial success. Contemporary industrial economies, unlike that of Victorian Britain, are geared to produce rapidly consumed and discarded products. Victorian engineers sought primarily to add to society's stock of capital rather than to consumption, and their designs were intended to endure rather than to promote change. All were subject to scrutiny on strict commercial criteria as a measurement of their fitness for their intended purpose. This represents a change in what society demands of the engineer. The innovator is, in Britain, subject to particular discouragements in the form of: low prestige attached to engineering, inadequate financial provision for investment, high corporate and personal taxation and bureaucratic encumbrances by government. By contrast, to flourish, innovation requires leadership, reward, recognition, a flexible economy and a flexible workforce, and adequate and cheap capital.  相似文献   

10.
In this study, we introduce the concept of legitimacy to the rigor-relevance debate and investigate empirically how rigor, relevance, and legitimacy are related to the process of knowledge dissemination within a research field. We argue that this analysis has been a missing piece in the debate on rigor and relevance when institutional logics about what constitutes both elements lead researchers to act according to what they perceive to be appropriate behavior in the research field. We draw on insights from the micro and macro levels of institutional theory to show how researchers aiming to bestow legitimacy on their own work conform to these “rules of the game”. Using meta-analytical techniques, we focus on the field of strategic entrepreneurship and analyze how rigor- and relevance-related characteristics of studies in this field are linked to their legitimacy and therefore to the impact they have in the research community.  相似文献   

11.
Learning to cope with the problems and uncertainties created by today's changing business environment is a task which faces ever company. Coping with the challenge of change is not just a question of adapting or reacting to the changes, it may also involve taking new initiatives in relation to the environment itself in order to exploit the opportunities which exist.A company may need to make fundamental adjustments to its philosophy, strategies, organization and practices in order to meet the newer demands of the environment. A prime difficulty is that companies are rarely in a position to start from scratch, they have existing organizational arrangements, power distributions, well established strategies and vested interests all of which tend to resist any kind of change which is likely to upset the ‘status quo’. They also have to overcome outdated beliefs and norms if they are to progress.This article considers the use of a modified approach to strategic planning as a mechanism for helping a company to acquire the norms, organization and strategies needed to cope with today's business environment. It is based on experience gained in helping to re-organize business enterprises engaged in textiles, steel tube manufacture, light engineering, distribution (world wide) and vehicle sales and servicing and also the Government of Jersey, Channel Islands.  相似文献   

12.
13.
We urgently need to put the concept of resilience into practice if we are to prepare our communities for climate change and exacerbated natural hazards. Yet, despite the extensive discussion surrounding community resilience, operationalizing the concept remains challenging. The dominant approaches for assessing resilience focus on either evaluating community characteristics or infrastructure functionality. While both remain useful, they have several limitations to their ability to provide actionable insight. More importantly, the current conceptualizations do not consider essential services or how access is impaired by hazards. We argue that people need access to services such as food, education, health care, and cultural amenities, in addition to water, power, sanitation, and communications, to get back some semblance of normal life. Providing equitable access to these types of services and quickly restoring that access following a disruption are paramount to community resilience. We propose a new conceptualization of community resilience that is based on access to essential services. This reframing of resilience facilitates a new measure of resilience that is spatially explicit and operational. Using two illustrative examples from the impacts of Hurricanes Florence and Michael, we demonstrate how decisionmakers and planners can use this framework to visualize the effect of a hazard and quantify resilience-enhancing interventions. This “equitable access to essentials” approach to community resilience integrates with spatial planning, and will enable communities not only to “bounce back” from a disruption, but to “bound forward” and improve the resilience and quality of life for all residents.  相似文献   

14.
This article presents arguments for the development of generic assessment endpoints for ecological risk assessment. Generic assessment endpoints would be ecological entities and attributes that are assumed to be worthy of protection in most contexts. The existence of generic assessment endpoints would neither create a requirement that they be used in every assessment nor preclude the use of other assessment endpoints. They would simply be a starting point in the process of identifying the assessment endpoints for a particular assessment. They are needed to meet legal mandates, to provide a floor for environmental degradation, to provide some consistency in environmental regulation, as exemplars for site- or project-specific assessment endpoints, to allow development of methods and models, to give risk managers the courage to act, for screening and site-independent assessments, to support environmental monitoring, to facilitate communication, and to avoid paralysis by analysis. Generic assessment endpoints should include not only a list of entities and attributes, but also explanations of each endpoint, guidance on their use and interpretation, and measures and models that could be used to estimate them.  相似文献   

15.
Production Management often tried to apply queueing models to describe the flow of products and parts. These approaches usually apply very simple queueing models. Due to mathematical problems implied by general waiting line models, an adaptation to real life problems fails often. In this paper, some simple models discussed in production management are presented and it is shown why they failed to be generalized. Afterwards, we try to find a way how to model the simple case of flow shop production using generalized queueing models: First decomposition of serial waiting lines and approximation of the system by a sequence of independent stations. Afterwards the approach of recent literature to consider again the entire system simultaneously is sketched, and it is argued that these approaches are restricted as well to small problems  相似文献   

16.
《Omega》2002,30(5):325-333
Reverse logistics has become an important entity in the US economy. Nonetheless, many companies are not capable of or are unwilling to enter the reverse logistics market. Such reluctance appears to be attributed to lack of knowledge of reverse logistics. This paper reviews current industry practices in reverse logistics. Specifically, we examine the issues and processes that an organization has to address to engage in the reverse logistics business. A reverse logistics decision-making model is developed to guide the process of examining the feasibility of implementing reverse logistics in third-party providers such as transportation companies. The purpose of this model is to help those companies who would like to pursue reverse logistics as a new market. A field study was conducted with a larger US transportation company to validate the proposed model.  相似文献   

17.
Root cause analysis can be used in foodborne illness outbreak investigations to determine the underlying causes of an outbreak and to help identify actions that could be taken to prevent future outbreaks. We developed a new tool, the Quantitative Risk Assessment-Epidemic Curve Prediction Model (QRA-EC), to assist with these goals and applied it to a case study to investigate and illustrate the utility of leveraging quantitative risk assessment to provide unique insights for foodborne illness outbreak root cause analysis. We used a 2019 Salmonella outbreak linked to melons as a case study to demonstrate the utility of this model (Centers for Disease Control and Prevention [CDC], 2019). The model was used to evaluate the impact of various root cause hypotheses (representing different contamination sources and food safety system failures in the melon supply chain) on the predicted number and timeline of illnesses. The predicted number of illnesses varied by contamination source and was strongly impacted by the prevalence and level of Salmonella contamination on the surface/inside of whole melons and inside contamination niches on equipment surfaces. The timeline of illnesses was most strongly impacted by equipment sanitation efficacy for contamination niches. Evaluations of a wide range of scenarios representing various potential root causes enabled us to identify which hypotheses, were likely to result in an outbreak of similar size and illness timeline to the 2019 Salmonella melon outbreak. The QRA-EC framework can be adapted to accommodate any food–pathogen pairs to provide insights for foodborne outbreak investigations.  相似文献   

18.
The measurement of performance is critical to nearly all managerial disciplines. Yet little is known about the aggregation characteristics of the components of performance and how our notion of a ‘good performing firm’ relates to what we use as a dependent variable. In this paper we propose an approach to the measurement of performance that uses the logic of frontier analysis and the technique of data envelopment analysis. The approach is shown to be a reasonable representation of the multidimensional nature of performance and is shown to replicate, effectively, the components that strategic management scholars typically consider when discussing performance. It is also shown to be superior to the simpler alternatives based on traditional approaches to performance measurement.  相似文献   

19.
ABSTRACT

This paper suggests larger residential organizations have a unique contribution to offer people with developmental disabilities who require managed environments or research solutions to their living needs. It claims no organization should be managed to be “institutional” regardless of its size, but that size alone is not the sole determinant of self-motivated service delivery. A move toward adoption of short-term goals geared to the immediate benefit of people with developmental disabilities and away from more traditional yearly developmental goals is cited as the key to keeping residential organizations focused on the consumers of their service. However, in order to utilize the unique advantages of larger organizations, these organizations will need to solve the problems created by having large groups of people living in close proximity and managed by multiple managers. A brief review of six general steps to organizational management is offered as the outline for effective management. An emphasis is placed on a need for immediate supervisors to have upper level administrator support to carry out these six managerial steps and to receive continuous feedback from consumers and staff on the acceptability of this service. In addition, because of their large size, history of abuses, and/or lack of consumer self-advocacy, larger residential organizations appear to have a special responsibility to show how they emphasize the concerns of their consumers over the institutional concerns of organizational survival.  相似文献   

20.
Dynamic capabilities research explains the ability of firms to respond to dynamic environments by reconfiguring inert and insufficiently flexible ordinary capabilities. However, more recent research ascribes the routines that constitute ordinary capabilities the ability to evolve endogenously. This study aims to develop dynamic capability research by increasing our understanding of the relations between and the roles played by ordinary and dynamic capabilities in producing purposeful responses to environmental dynamism. Drawing on longitudinal, qualitative data, we show how ordinary capabilities make important contributions to organizational responses to dynamic environments. Our findings pose challenges to key assumptions of extant dynamic capabilities research and allow us to explicate new roles for ordinary and dynamic capabilities, thus advancing the understanding of the relation between dynamic and ordinary capabilities and advancing understanding of one of the central issues in dynamic capabilities research: firms’ capacity to respond to changing environments.  相似文献   

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