526 research outputs found

    Scattering and Bound States of a Deformed Quantum Mechanics

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    We construct the exact position representation of a deformed quantum mechanics which exhibits an intrinsic maximum momentum and use it to study problems such as a particle in a box and scattering from a step potential, among others. In particular, we show that unlike usual quantum mechanics, the present deformed case delays the formation of bound states in a finite potential well. In the process we also highlight some limitations and pit-falls of low-momentum or perturbative treatments and thus resolve two puzzles occurring in the literature

    Generalized Relativistic Wave Equations with Intrinsic Maximum Momentum

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    We examine the nonperturbative effect of maximum momentum on the relativistic wave equations. In momentum representation, we obtain the exact eigen-energies and wavefunctions of one-dimensional Klein-Gordon and Dirac equation with linear confining potentials, and the Dirac oscillator. Bound state solutions are only possible when the strength of scalar potential are stronger than vector potential. The energy spectrum of the systems studied are bounded from above, whereby classical characteristics are observed in the uncertainties of position and momentum operators. Also, there is a truncation in the maximum number of bound states that is allowed. Some of these quantum-gravitational features may have future applications.Comment: 20 pages, 4 figure

    The French model and water challenges in developing countries: evidence from Jakarta and Manila

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    10.1016/j.polsoc.2013.05.004Policy and Society322103-11

    A Research on Supply Chain Security in Malaysia

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    Abstract Transportation is an important supply chain driver because products are rarely produced and consumed in the same location and industry is very dependent on the transportation to transfer the products. In todays economy, every organization is working on reducing its bottom line to get its profits up, as top line growth is almost non-existent. In logistics business, one area that can add to your organizations profitability but which is often overlooked is prevention of cargo theft. The need for cargo security is critical to assist the transportation industry in combating the serious increases in cargo crime. Cargo security is not an isolated event; security has to be applied across the value chain, across borders, (countries, departments, competitors, customers and transportation modes) and integrate an ongoing awareness in every single point of interaction with the goods. The term, cargo theft represents any stealing from premises or hijacking of cargo moving by trucks, rail cars or ships from the point of origin to the destination. It is considered cargo theft if it is stolen at any point between origin, destination and in between. Many companies normally do not report such crimes for several reasons. The security of cargo in the supply chain has become one of the major global security concerns given its recognized vulnerabilities which make cargo possibly the easiest target for criminals. Any supply chains success is closely linked to the appropriate use of a secured and safe transportation. Many companies have not yet invested in improving security beyond the minimum level due to difficulty in justifying security investments. Companies may not yet see the benefits of enhanced security or may be unable to make an adequate business case for security implementation. However, supply chain security management is not a black hole and it is believe that secured supply chains do provide a return on investment for transportation and logistics companies

    The Study Of Cargo Crime During Road Transportation In Malaysia: Application Of Routine Activities Theory

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    The studies on crime prevention, causes of crime and the theories associated with it are very essential in criminology. Routine Activities Theory is also the basis for many criminological theories. Although it has some shortcomings, it is still a strong theory that the theorists and practitioners on crime prevention can benefit from. This study explained the use of routine activities theory in preventing and reducing cargo crime on road transportation in Malaysia. The objectives of this study were to provide information related to this theory and investigate its relationship with the prevention of cargo crime. Security threats and risk on road transportation in Malaysia are the pressing concerns that are currently being faced by the industry. This study was conducted to identify the security control measures implemented by cargo transportation companies in Malaysia to prevent cargo crime. The relationships between the variables were addressed and established to find out how the independent variables are related to the dependent variables. Correlation analysis was conducted to determine the relationship between foreign and local cargo road transportation companies on the implementation of security control measures. Survey was conducted along PLUS Highway Malaysia to identify security control measures on truck parking facilities by measuring the level of the lighting condition, the availability of guarding services and the installation of security equipment

    The “Inherent Vices” of Policy Design: Uncertainty, Maliciousness, and Noncompliance

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    Policy designs must not only “work” in the sense of accomplishing their goals but must alsowork in their intended fashion. Most research to date has focused on the former topic anddwells on the technical aspects of how various tools and instruments could be utilized toachieve the aims and goals of policymakers. This branch of research tends to underemphasizethe difficulties inherent to policy making including policy contexts that are often highly uncertain,policymakers who fall short of an idealized version of high capacity, well-intentioneddecisionmakers grappling with relevant public problems, and policy-takers who fail to complywith government wishes. These “inherent vices” of policy making are factors which contributeto policy volatility or the risk of policy failure. The paper stresses the need for improved riskmanagement and mitigation strategies in policy formulation and policy designs to take theserisks into account. It sets out and develops an approach borrowed from product failure management(in manufacturing

    The “Inherent Vices” of Policy Design: Uncertainty, Maliciousness, and Noncompliance

    Get PDF
    Policy designs must not only “work” in the sense of accomplishing their goals but must also work in their intended fashion. Most research to date has focused on the former topic and dwells on the technical aspects of how various tools and instruments could be utilized to achieve the aims and goals of policymakers. This branch of research tends to underemphasize the difficulties inherent to policy making including policy contexts that are often highly un- certain, policymakers who fall short of an idealized version of high capacity, well-intentioned decisionmakers grappling with relevant public problems, and policy-takers who fail to comply with government wishes. These “inherent vices” of policy making are factors which contribute to policy volatility or the risk of policy failure. The paper stresses the need for improved risk management and mitigation strategies in policy formulation and policy designs to take these risks into account. It sets out and develops an approach borrowed from product failure man- agement (in manufacturing) and portfolio management (in finance) to help better assess and manage these risks

    Dynamics of Institutional Change: Three Water Policies (And Two Bright Ideas) Examined

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    Ph.DDOCTOR OF PHILOSOPH
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