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The Evolution Of International Norms, Ann Florini Sep 1996

The Evolution Of International Norms, Ann Florini

Research Collection School of Social Sciences

This article puts forward a theoretical explanation for why norms of international behavior change over time. It argues that the mainstream neorealist and neoliberal arguments on the static nature of state interests are implausible, as the recent empirical work of the growing constructivist school has convincingly shown. But the constructivists have not yet provided a theoretical basis for understanding why one norm rather than another becomes institutionalized, nor has learning theory yet provided an adequate explanation. An evolutionary approach that draws its hypotheses from an analogy to population genetics offers a promising alternative. This article briefly outlines the constructivist critique …

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Resource-Constrained Project Scheduling: A Survey Of Recent Developments, Willy Herroelen, Erik Demeulemeester, Bert De Reyck Sep 1996

Resource-Constrained Project Scheduling: A Survey Of Recent Developments, Willy Herroelen, Erik Demeulemeester, Bert De Reyck

Research Collection Lee Kong Chian School Of Business

Resource-constrained project scheduling involves the scheduling of project activities subject to precedence and resource constraints in order to meet the objective(s) in the best possible way. The area covers a wide variety of problem types. The objective of this paper is to provide a survey of what we believe are the important recent developments in the area. Our main focus will be on the recent progress made in and the encouraging computational experience gained with the use of optimal solution procedures for the basic resource-constrained project scheduling problem (RCPSP) and important extensions. We illustrate how the branching rules, dominance and …

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An On-The-Fly Decoding Technique For Reed-Solomon Codes, Yuan Xing Lee, Robert H. Deng, Eng Hean Koh Sep 1996

An On-The-Fly Decoding Technique For Reed-Solomon Codes, Yuan Xing Lee, Robert H. Deng, Eng Hean Koh

Research Collection School Of Computing and Information Systems

An on-the-fly error correction technique for double-byte-error-correction (DBEC) and triple-byte-error-detection (TBED) Reed-Solomon (RS) codes is presented in this paper. This new algorithm finds number of byte-errors (single byte-error, double-byte errors, and triple-byte errors) by simply testing the values of a few syndrome functions, and locates and corrects the byte-errors directly without using the standard iterative algorithms for finding the error location polynomial. More importantly, it neither suffers from malfunctions incurred in Deng-Costello algorithm (1987), nor requires syndrome re-calculation as in Koksal-Yucel's modification (1992). It is also much more simpler and faster than the original Deng-Costello algorithm. It has found applications …

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Search For Charginos And Neutralinos With R-Parity Violation At √S = 130 And 136 Gev, Buskulic, D.; Et Al., M. Thulasidas Sep 1996

Search For Charginos And Neutralinos With R-Parity Violation At √S = 130 And 136 Gev, Buskulic, D.; Et Al., M. Thulasidas

Research Collection School Of Computing and Information Systems

Searches for charginos and neutralinos produced in e +e - collisions at centre-of-mass energies of 130 and 136 GeV have been performed under the assumptions that R-parity is not conserved, that the dominant R-parity violating coupling involves only leptonic fields, and that the lifetime of the lightest supersymmetric particle can be neglected. In the 5.7 pb -1 data sample collected by ALEPH, no candidate events were found. As a result, chargino and neutralino masses and couplings are constrained and the domains previously excluded at LEP1 are extended.

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Mass Limit For The Standard Model Higgs Boson With The Full Lep I Aleph Data Sample, Buskulic, D.; Et Al., M. Thulasidas Sep 1996

Mass Limit For The Standard Model Higgs Boson With The Full Lep I Aleph Data Sample, Buskulic, D.; Et Al., M. Thulasidas

Research Collection School Of Computing and Information Systems

The reaction e+e− → HZ∗ is used to search for the standard model Higgs boson in the Hνν and the Hℓ+ℓ− channels. The data sample corresponds to about 4.5 million hadronic Z decays collected by the ALEPH experiment at LEP from 1989 to 1995 at centre-of-mass energies at and around the Z peak. Three candidate events are found in the Hμ+μ− channel, in agreement with the expected background from the electroweak process e+e− ℓ+ℓ−qq. This search results in a 95% C.L. lower limit on the Higgs boson mass of 63.9 GeV/c2.

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Measurement Of The B Forward-Backward Asymmetry And Mixing Using High-P⊥ Leptons, Buskulic, D., M. Thulasidas Sep 1996

Measurement Of The B Forward-Backward Asymmetry And Mixing Using High-P⊥ Leptons, Buskulic, D., M. Thulasidas

Research Collection School Of Computing and Information Systems

The B0 - B̄0 average mixing parameter χ and b forward-backward asymmetry AFB0(b) are measured from a sample of about 4 200 000 Z → qq̄ events recorded with the ALEPH detector at LEP in the years 1990–1995. High transverse momentum electrons and muons produced in b semileptonic decays provide the tag of the quark flavour and of its charge.The average mixing parameter and the pole b asymmetry are measured to be χ = 0.1246 ± 0.0051stat ± 0.0052syst, AFB0(b) = 0.1008 ± 0.0043stat ± 0.0028syst. The value of sin2θweff = 0.23198 ± 0.00092 is extracted from the asymmetry measurement.

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Observation Of Charmless Hadronic B Decays, Buskulic, D.; Et Al., M. Thulasidas Sep 1996

Observation Of Charmless Hadronic B Decays, Buskulic, D.; Et Al., M. Thulasidas

Research Collection School Of Computing and Information Systems

No abstract provided.

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Search For Cp Violation In The Decay Z → B B̄ G, Buskulic, D.; Et Al., M. Thulasidas Sep 1996

Search For Cp Violation In The Decay Z → B B̄ G, Buskulic, D.; Et Al., M. Thulasidas

Research Collection School Of Computing and Information Systems

About three million hadronic decays of the Z collected by ALEPH in the years 1991 to 1994 are used to search for anomalous CP violation beyond the Standard Model in the decay Z → bb̄g. The study is performed by analyzing angular correlations between the two quarks and the gluon in three-jet events and by measuring the differential two-jet rate. No signal of CP violation is found. For the combinations of anomalous CP violating couplings, ĥb = ĥAbgVh - ĥVbgAb and hb* = √ĥVb2 + ĥAb2, limits of | ĥb | b*

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Strange B Baryon Production And Lifetime In Z Decays, D. Buskulic, M. Thulasidas Sep 1996

Strange B Baryon Production And Lifetime In Z Decays, D. Buskulic, M. Thulasidas

Research Collection School Of Computing and Information Systems

In a data sample of approximately four million hadronic Z decays recorded with the ALEPH detector from 1990 to 1995, a search for the strange b baryon Ξb is performed with a study of Ξ-lepton correlations. Forty-four events with same sign Ξ−ℓ− combinations are found whereas 8.4 are expected based on the rate of opposite sign Ξ−ℓ+ combinations. This significant excess is interpreted as evidence for Ξb semileptonic decays. The measured product branching ratio is Br(b → Ξb) × Br(Ξb→ XcXℓ−νℓ) × Br(Xc→ Ξ−X′) = (5.4±1.1(stat) ± 0.8(syst)) × 10−4 per lepton species, averaged over electrons and muons, with Xc …

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The New Law On Infringement Of Registered Trade Marks In The United Kingdom: Early Developments, David Llewelyn Aug 1996

The New Law On Infringement Of Registered Trade Marks In The United Kingdom: Early Developments, David Llewelyn

Research Collection Yong Pung How School Of Law

In this article the author considers the infringement provisions of the Trade Marks Act 1994 (UK) and a number of recent decisions in which they have been considered.

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Concept Hierarchy Memory Model: A Neural Architecture For Conceptual Knowledge Representation, Learning, And Commonsense Reasoning, Ah-Hwee Tan, Hui-Shin Vivien Soon Jul 1996

Concept Hierarchy Memory Model: A Neural Architecture For Conceptual Knowledge Representation, Learning, And Commonsense Reasoning, Ah-Hwee Tan, Hui-Shin Vivien Soon

Research Collection School Of Computing and Information Systems

This article introduces a neural network based cognitive architecture termed Concept Hierarchy Memory Model (CHMM) for conceptual knowledge representation and commonsense reasoning. CHMM is composed of two subnetworks: a Concept Formation Network (CFN), that acquires concepts based on their sensory representations; and a Concept Hierarchy Network (CHN), that encodes hierarchical relationships between concepts. Based on Adaptive Resonance Associative Map (ARAM), a supervised Adaptive Resonance Theory (ART) model, CHMM provides a systematic treatment for concept formation and organization of a concept hierarchy. Specifically, a concept can be learned by sampling activities across multiple sensory fields. By chunking relations between concepts as …

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Challenges Of Global Economic Competition: The Singapore Response, Caroline Yeoh Jul 1996

Challenges Of Global Economic Competition: The Singapore Response, Caroline Yeoh

Research Collection Lee Kong Chian School Of Business

No abstract provided.

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Measurement Of The Mass Of The Λb Baryon, Buskulic, D.; Et Al., M. Thulasidas Jul 1996

Measurement Of The Mass Of The Λb Baryon, Buskulic, D.; Et Al., M. Thulasidas

Research Collection School Of Computing and Information Systems

No abstract provided.

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Supporting Search For Reusable Software Objects, T. Isakowitz, Robert J. Kauffman Jun 1996

Supporting Search For Reusable Software Objects, T. Isakowitz, Robert J. Kauffman

Research Collection School Of Computing and Information Systems

Prior research has shown that achieving high levels of software reuse in the presence of repository and object-based computer-aided software engineering (CASE) development methods presents interesting human, managerial and technical challenges. This article presents research that seeks to enhanced software development performance through reuse. We propose automated support for developers who search large repositories for the appropriate reusable software objects. We characterize search for repository objects in terms of a multistage model involving screening, identification, and the subsequent choice between new object construction or reusable object implementation. We propose automated support tools, including ORCA, a software Object Reuse Classification Analyzer, …

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Ideology, Social Commentary And Resistance In Popular Music: A Case Study Of Singapore, Phua Siew Chye, Lily Kong Jun 1996

Ideology, Social Commentary And Resistance In Popular Music: A Case Study Of Singapore, Phua Siew Chye, Lily Kong

Research Collection School of Social Sciences

Popular music as a site of struggles over meaning is focused upon, where the social and political relations between different groups in Singapore society are mirrored. How ruling elites and everyday people make use of the same cultural form--popular music--for different purposes is examined.

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The Notion Of Place In The Construction Of History, Nostalgia And Heritage In Singapore, Brenda S. A. Yeoh, Lily Kong Jun 1996

The Notion Of Place In The Construction Of History, Nostalgia And Heritage In Singapore, Brenda S. A. Yeoh, Lily Kong

Research Collection School of Social Sciences

In this paper, we investigate the links between place and time, and the intersections between the geographical imagination and the historical mind. These issues are explored in the context of Singapore by looking at the links between place and three concepts usually associated with the temporal sense - history, nostalgia and heritage. We argue that the two imaginations can be simultaneously engaged by means of a focus on the concept of place. The making of a place is closely intertwined with individual biographies and collective histories; at the same time, place does not record history in an unproblematic way. We …

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On The Use Of The Complexity Index As A Measure Of Complexity In Activity Networks, Bert De Reyck, Willy Herroelen Jun 1996

On The Use Of The Complexity Index As A Measure Of Complexity In Activity Networks, Bert De Reyck, Willy Herroelen

Research Collection Lee Kong Chian School Of Business

A large number of optimal and suboptimal procedures have been developed for solving combinatorial problems modeled as activity networks. The need to differentiate between easy and hard problem instances and the interest in isolating the fundamental factors that determine the computing effort required by these procedures, inspired a number of researchers to develop various complexity measures. In this paper we investigate the relation between the hardness of a problem instance and the topological structure of its underlying network, as measured by the complexity index. We demonstrate through a series of experiments that the complexity index, defined as the minimum number …

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Measurement Of Hadron And Lepton-Pair Production From E+E- Annihilation At Centre-Of-Mass Energies Of 130 And 136 Gev, Buskulic, D.; Et Al., M. Thulasidas Jun 1996

Measurement Of Hadron And Lepton-Pair Production From E+E- Annihilation At Centre-Of-Mass Energies Of 130 And 136 Gev, Buskulic, D.; Et Al., M. Thulasidas

Research Collection School Of Computing and Information Systems

No abstract provided.

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Study Of The B0sb0s Oscillation Frequency Using D-S ℓ+ Combinations In Z Decays, Buskulic, D.; Et Al., M. Thulasidas Jun 1996

Study Of The B0sb0s Oscillation Frequency Using D-S ℓ+ Combinations In Z Decays, Buskulic, D.; Et Al., M. Thulasidas

Research Collection School Of Computing and Information Systems

A lower limit on the oscillation frequency of the B s 0 B s 0 system is obtained from approximately four million hadronic Z decays accumulated using the ALEPH detector at LEP from 1991 to 1995. Leptons are combined with opposite sign D s − candidates reconstructed in seven different decay modes as evidence of semileptonic B s 0 decays. Criteria designed to ensure precise proper time reconstruction select 277D s − ℓ + combinations. The initial state of these B s 0 candidates is determined using an algorithm optimized to efficiently utilise the tagging information available for each event. …

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Pluralism, Multiculturalism And Group Rights, Chandran Kukathas Apr 1996

Pluralism, Multiculturalism And Group Rights, Chandran Kukathas

Research Collection School of Social Sciences

However prevalent may have been the longing for homogeneity, or at least social unity, in political thinking, the fundamental point which must be recognized is that cultural diversity or pluralism has been the most notable feature of society in the history of human set tlement. "Marginality and pluralism were and are the norm of civi lized existence."1 There are several reasons why this is the pattern revealed by history.2 The first has to do with the ubiquity of military conflict. Even among barbarians ethnic political unity was fragile because military conquests resulted in the mixing of peoples. But throughout history …

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Against The Communitarian Republic, Chandran Kukathas Apr 1996

Against The Communitarian Republic, Chandran Kukathas

Research Collection School of Social Sciences

Communitarianism has risen to prominence in recent debates in political philosophy largely on the strength of its criticisms of liberalism. Among its more important criticisms is the charge that liberal political thinking does not properly appreciate the value of community. At a deeper level, communitarian ism asserts that liberalism is infected by confusions about the nature of community, thinking?mistakenly?that it is no more than an associa tion of separate, isolated, 'atomistic' individuals. Communitarians thus advance not only certain claims about value but also other claims about how the human world should be understood.

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Vote-Buying In The Thai Northeast: The July 1995 General Election, William A. Callahan Apr 1996

Vote-Buying In The Thai Northeast: The July 1995 General Election, William A. Callahan

Research Collection School of Social Sciences

The argument that Thailand was a bureaucratic polity characterized by limited popular participation has been challenged in recent years by the manifest rise of civil society. At the same time, business interests have assumed growing political importance, challenging the traditional pre-eminence of government officials and military officers. In particular, politics in provincial areas have come to be strongly influenced by a rising business elite. One effect of this changing landscape has been growing commercialization of the electoral process, as was clearly seen in the July 2, 1995, general election. Vote-buying and other abuses were widespread, especially in provincial areas. This …

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Trading Networks Of Chinese Entrepreneurs In Singapore, Thomas Menkhoff, Chalmers E. Labig Apr 1996

Trading Networks Of Chinese Entrepreneurs In Singapore, Thomas Menkhoff, Chalmers E. Labig

Research Collection Lee Kong Chian School Of Business

The entrenchment of entrepreneurs in local, regional, or global business networks based on kinship, clanship, territorial, or ethnic ties has often been cited as characteristic of Chinese business communities in Southeast Asia. Qualitative interviews with Singaporean Chinese merchant-exporters were conducted in order to examine this thesis. The findings reveal that there is a strong tendency among Chinese entrepreneurs in Singapore to rely on external commercial relationships with ‘outsiders’ and ‘friends’ rather with those related by blood or marriage. It is suggested that kinship reciprocity may under some circumstances curb the autonomy and freedom of the transacting actors, thus limiting their …

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Moorean Absurdities And The Nature Of Assertion, John N. Williams Mar 1996

Moorean Absurdities And The Nature Of Assertion, John N. Williams

Research Collection School of Social Sciences

I argue that Moore's propositions, for example, 'I went to the pictures last Tuesday but I don't believe that I did' cannot be rationally believed. Their assertors either cannot be rationally believed or cannot be believed to be rational. This analysis is extended to Moorean propositions such as God knows that I am an atheist and I believe that this proposition is false. I then defend the following definition of assertion: anyone asserts that p iff that person expresses a belief that p with the intention of causing relevant epistemic change in the cognition of an actual or potential audience.

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Reducing Cycle Time At An Ibm Wafer Fabrication Facility, Lieven Demeester, Christopher S. Tang Mar 1996

Reducing Cycle Time At An Ibm Wafer Fabrication Facility, Lieven Demeester, Christopher S. Tang

Research Collection Lee Kong Chian School Of Business

In 1991, IBM San Jose decided to produce and sell magnetic heads for computer disk drives on the open market to original equipment manufacturers. However, as IBM's wafer fabrication facility increased the number of products it manufactured, its manufacturing cycle time lengthened. Since cycle time is important in competing in the open market, IBM San Jose formed a study team (in cooperation with UCLA) to examine the wafer fab and to develop ways to reduce cycle time. The team designed a new production control system and proposed new performance measures for operators and engineers. IBM implemented the new production control …

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Semiparametric Exploration Of Long Memory In Stock Prices, David K. C. Lee, Peter M. Robinson Mar 1996

Semiparametric Exploration Of Long Memory In Stock Prices, David K. C. Lee, Peter M. Robinson

Research Collection Lee Kong Chian School Of Business

New or modified methods for semiparametric analysis of fractional long memory in time series are described and applied to twenty-six stock prices and two stock indices. Evidence is found that some, but not all, of the stocks have long memory, while one of the indices exhibits mean reversion.

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Policies Of Secrecy And Denial: Barriers To Jury Reform, Mark Findlay Mar 1996

Policies Of Secrecy And Denial: Barriers To Jury Reform, Mark Findlay

Research Collection Yong Pung How School Of Law

The jury is that institution of justice most highly regarded in the communities in which it features. However, it remains little understood. The difficulties associated with researching the jury are well known. The barriers raised against an actual appreciation of the "jury" and juries, are diverse and formidable in all their operational contexts. Yet debates about jury reform are a common feature of criminal justice administration.

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The Management Guru As Organizational Witchdoctor, Timothy Adrian Robert Clark, Graeme Salaman Feb 1996

The Management Guru As Organizational Witchdoctor, Timothy Adrian Robert Clark, Graeme Salaman

Research Collection Lee Kong Chian School Of Business

This paper suggests that the work of management gurus resembles the performance of a witchdoctor. Central to the work of management gurus is the achievement of transformations of consciousness among their audiences of managers. The view of management gurus offered in this paper has three elements: (1) the key to understanding the power and impact of gurus is to see what they do as a performance; (2) that this performance is of a particular kind-that of a witchdoctor; (3) that management gurus act as the functional equivalents to witchdoctors in modern organizations. The paper argues that at the heart of …

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Entity Identification In Database Integration, Ee Peng Lim, Jaideep Srivastava, Satya Prabhakar, James Richardson Feb 1996

Entity Identification In Database Integration, Ee Peng Lim, Jaideep Srivastava, Satya Prabhakar, James Richardson

Research Collection School Of Computing and Information Systems

The objective of entity identification is to determine the correspondence between objective instances from more than one database. This paper examines the problem at the instance level assuming that schema level heterogeneity has been resolved a priori. Soundness and completeness are defined as the desired properties of any entity-identification technique. To achieve soundness, a set of identity and distinctness rules have to be established for the entities in the integrated world. We then propose the use of extended key, which is the union of keys (and possibly other attributes) from the relations to be matched, and its corresponding identity rule …

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A Precise Measurement Of The Average B Hadron Lifetime, D. Buskulic, M. Thulasidas Feb 1996

A Precise Measurement Of The Average B Hadron Lifetime, D. Buskulic, M. Thulasidas

Research Collection School Of Computing and Information Systems

An improved measurement of the average b hadron lifetime is performed using a sample of 1.5 million hadronic Z decays, collected during the 1991–1993 runs of ALEPH, with the silicon vertex detector fully operational. This uses the three-dimensional impact parameter distribution of lepton tracks coming from semileptonic b decays and yields an average b hadron lifetime of 1.533 ± 0.013 ± 0.022 ps.

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