Digital Commons Network^™

Why 'Democracy' And 'Drifter' Firms Can Have Abnormal Returns: The Joint Importance Of Corporate Governance And Abnormal Accruals In Separating Winners From Losers, Koon Boon Kee

Research Collection School Of Accountancy

No abstract provided.

Markowitz Meets Talmud: A Combination Of Sophisticated And Naive Diversification Strategies, Jun Tu, Guofu Zhou

Research Collection Lee Kong Chian School Of Business

The modern portfolio theory pioneered by Markowitz (1952) is widely used in practice and extensively taught to MBAs. However, the estimated Markowitz portfolio rule and most of its extensions not only underperform the naive 1/N rule (that invests equally across N assets) in simulations, but also lose money on a risk-adjusted basis in many real data sets. In this paper, we propose an optimal combination of the naive 1/N rule with one of the four sophisticated strategies—the Markowitz rule, the Jorion (1986) rule, the MacKinlay and Pástor (2000) rule, and the Kan and Zhou (2007) rule—as a way to improve …

Reshaping Exercise Design In Assessment Centers: Theory, Practice, And Research, Filip Lievens, Eveline Schollaert

Research Collection Lee Kong Chian School Of Business

Upon looking at this title, an obvious question is whether assessment center (AC) exercises need to be designed differently from what was done in the past. AC exercises have been around since World War I and their longevity attests to their success. So why propose some changes to this monument in personnel selection and development? Let us first acknowledge that we concur that ACs are in still in good shape. However, every good brand needs some adjustments (which is a more appropriate term than “changes” in this context) once in a while, based on new theoretical insights and empirical research. …

International Entrepreneurship And Capability Development: Qualitative Evidence And Future Research Directions, Erkko Autio, Gerard George, Oliver Alexy

Research Collection Lee Kong Chian School Of Business

In this article, we explore how new capabilities emerge and solidify in new ventures that are faced with fundamental uncertainty from their environment. To do so, we draw from the organizational and entrepreneurial literature on cognition and capabilities. Using initial qualitative evidence from a multi-firm study in the context of new venture internationalization, we develop a cognition-based model of capability emergence in new ventures. Our findings extend the capability development and learning implications of internationalization to the fundamental character of organizing processes in start-ups. Moreover, we derive avenues for future entrepreneurship research on the origins and evolution of capabilities in …

Do Individual Differences In Perceiving Situational Demands Moderate The Relationship Between Personality And Assessment Center Dimension Ratings?, Anne Jansen, Filip Lievens, Martin Kleinmann

Research Collection Lee Kong Chian School Of Business

This study contributes to research on assessment centers' (AC) external construct-related validity by investigating a potential moderator of the relationship between personality and AC dimension ratings. On the basis of recent insights in person-situation contingencies we hypothesized that individual differences in people's perception of situational demands moderate the relationship between personality and conceptually related AC dimension ratings. The hypotheses were tested with 108 individuals in two leaderless group discussion exercises. Results confirmed the hypotheses for two of the three traits (i.e., Agreeableness and Conscientiousness). In particular, people high on these traits who identified the situational demands received higher AC dimension …

State Of The Fisheries And Aquatic Resources Report 2010/11, W.J Fletcher, K. Santoro

Status Reports of the Fisheries and Aquatic Resources

This is the second edition of the newly named State of the Fisheries and Aquatic Resources Report. Each year this report provides the public with an update on the status of all the fish and fisheries resources of Western Australia that are managed by the Department. The report outlines the current risk status for the ecological resources (assets) within each of WA‘s six Bioregions by taking a bioregional, Ecosystem-Based Fisheries Management (EBFM) approach.

Lifestyle And Demographic Correlates Of Poor Mental Health In Early Adolescence, Monique Robinson, Garth Kendall, Peter Jacoby, Beth P. Hands, Lawrence Beilin, Sven Silburn, Steve Zubrick, Wendy Oddy

Health Sciences Papers and Journal Articles

Aim: To determine the constellation of lifestyle and demographic factors that are associated with poor mental health in an adolescent population.

Methods: The Raine Study 14-year follow-up involved primary care givers and their adolescent children (n = 1860). The Child Behaviour Checklist (CBCL) was used to assess adolescent mental health. We examined diet, socio-demographic data, family functioning, physical activity, screen use and risk-taking behaviours with mental health outcomes using linear regression.

Results: Adolescents with higher intakes of meat and meat alternatives and ‘extras’ foods had poorer mental health status. Adverse socioeconomic conditions, higher hours of screen use and ever partaking …

Visualizing The Role Of Cbl-B In Control Of Islet-Reactive Cd4 T Cells And Susceptibility To Type 1 Diabetes, Gerard F. Hoyne, Eleanor Flening, Mehmet Yabas, Charis Teh, John A. Altin, Katrina Randall, Christine B F Thien, Wallace Y. Langdon, Christopher C. Goodnow

Health Sciences Papers and Journal Articles

The E3 ubiquitin ligase Cbl-b regulates T cell activation thresholds and has been associated with protecting against Type 1 diabetes, but its in vivo role in the process of self-tolerance has not been examined at the level of potentially auto-aggressive CD4+ T cells. Here we visualize the consequences of Cbl-b deficiency on self-tolerance to lysozyme antigen expressed in transgenic mice under control of the insulin promoter (insHEL). By tracing the fate of pancreatic islet-reactive CD4+ T cells in pre-diabetic 3A9-TCR x insHEL double-transgenic mice, we find that Cbl-b deficiency contrasts with AIRE or IL-2 deficiency because it does not affect …

Advertising Law And Regulation, Chao-Hung Christopher Chen

Research Collection Yong Pung How School Of Law

No abstract provided.

Consolidating Or Non-Consolidating Queues: A Game Theoretic Queuing Model With Holding Costs, Kwan Eng Wee, Ananth Iyer

Research Collection Lee Kong Chian School Of Business

We consider a two-server queueing system in which the servers choose their service rate based on the demand and holding cost allocation scheme offered by the demand generating entity. We provide an optimal holding cost allocation scheme that leads to the maximum possible service rate for each of a pooled and a split system. Our results suggest that careful allocation of holding costs can create incentives that enable minimum turnaround times using a common queue.

The Role Of Gender In Negotiation, Elizabeth Layne Paddock, L. J. Kray

Research Collection Lee Kong Chian School Of Business

No abstract provided.

Phylogeographic Structure Of Teretrius Nigrescens (Coleoptera: Histeridae) Predator Of The Invasive Post Harvest Pest Prostephanus Truncatus (Coleoptera: Bostrichidae)., B. A. Omondi, J. Van Den Berg, D. Masiga, F. Schulthess

All Peer-Reviewed Publications

The invasive larger grain borer Prostephanus truncatus (Horn) is the most important pest of farm-stored maize in Africa. It was introduced into the continent from Mesoamerica in the late 1970s and by 2008 had spread to at least 18 countries. Classical biological control using two populations of the predator Teretrius nigrescens Lewis achieved long-term and cost effective control in warm-humid areas, but not in cool and hot-dry zones. The present study investigated the phylogenetic relationships between geographical populations of the predator. Ten populations of T. nigrescens were studied using randomly amplified polymorphic DNA polymerase chain reaction (RAPD-PCR), sequence analysis of …

Strategies For Preventing Prolonged Disability In Workers Compensated For Work Related Musculoskeletal Disorders: A Systematic And Comprehensive Literature Review, Iuliana Nastasia, Rodica Tcaciuc, Marie-France Coutu

États de la question, rapports d’expertise et revues de littérature

Les troubles musculo-squelettiques d'origine professionnelle (TMSOP) représentent un lourd fardeau économique pour notre société en raison du nombre sans cesse croissant de journées de travail perdues par un faible pourcentage de travailleurs dont l’incapacité au travail se prolonge. La prolifération continue des concepts dans le domaine de l'incapacité au travail, la diversité des interventions et des contextes de mise en œuvre, de même que les intérêts variés des intervenants impliqués dans le processus de réadaptation et de retour au travail (RAT) des travailleurs indemnisés pour TMSOP posent des défis de taille aux chercheurs et aux praticiens actifs dans le domaine …

Flexible Use Of Anti-Predator Defences, Ximena J. Nelson, Robert R. Jackson

All Peer-Reviewed Publications

Belonging to a size category that makes them vulnerable to a wide variety of predators, spiders have evolved a bewildering array of anti-predator adaptations, which can be clustered under two broad categories, primary and secondary defence. Primary defences are ploys by which the spider avoids provoking pursuit by, and interaction with, the predator. Camouflage and masquerade are especially common examples. Secondary defences come into play once an interaction with a predator is under way, and these are the defences that have been most thoroughly studied. However, elements of anti-predator defence may often be integrated into other aspects of the spider's …

Parasitism Of Lepidopterous Stem Borers In Cultivated And Natural Habitats, Duna Madu Mailafiya, Bruno Pierre Le Ru, Eunice Waitherero Kairu, Stéphane Dupas, Paul-André Calatayud

All Peer-Reviewed Publications

Plant infestation, stem borer density, parasitism, and parasitoid abundance were assessed during two years in two host plants, Zea mays (L.) (Cyperales: Poaceae) and Sorghum bicolor (L.) (Cyperales: Poaceae), in cultivated habitats. The four major host plants (Cyperus spp., Panicum spp., Pennisetum spp., and Sorghum spp.) found in natural habitats were also assessed, and both the cultivated and natural habitat species occurred in four agroecological zones in Kenya. Across habitats, plant infestation (23.2%), stem borer density (2.2 per plant), and larval parasitism (15.0%) were highest in maize in cultivated habitats. Pupal parasitism was not higher than 4.7% in both habitats, …

A Quantitative Analysis And Natural History Of B. F. Skinner’S Coauthoring Practices, Todd L. Mckerchar, Edward K. Morris, Nathaniel G. Smith

Research, Publications & Creative Work

This paper describes and analyzes B. F. Skinner’s coauthoring practices. After identifying his 35 coauthored publications and 27 coauthors, we analyze his coauthored works by their form (e.g., journal articles) and kind (e.g., empirical); identify the journals in which he published and their type (e.g., data-type); describe his overall and local rates of publishing with his coauthors (e.g., noting breaks in the latter); and compare his coauthoring practices with his single-authoring practices (e.g., form, kind, journal type) and with those in the scientometric literature (e.g., majority of coauthored publications are empirical). We address these findings in the context of describing …

Allotetraploid Origin And Divergence In Eleusine (Chloridoideae, Poaceae): Evidence From Low-Copy Nuclear Gene Phylogenies And A Plastid Gene Chronogram, Qing Liu, Jimmy K. Triplett, Jun Wen, Paul M. Peterson

Research, Publications & Creative Work

Background and Aims: Eleusine (Poaceae) is a small genus of the subfamily Chloridoideae exhibiting considerable morphological and ecological diversity in East Africa and the Americas. The interspecific phylogenetic relationships of Eleusine are investigated in order to identify its allotetraploid origin, and a chronogram is estimated to infer temporal relationships between palaeoenvironment changes and divergence of Eleusine in East Africa.

Methods: Two low-copy nuclear (LCN) markers, Pepc4 and EF-1a, were analysed using parsimony, likelihood and Bayesian approaches. A chronogram of Eleusine was inferred from a combined data set of six plastid DNA markers (ndhA intron, ndhF, rps16-trnK, rps16 intron, rps3, and …

Probing The Mechanical Properties Of Tnf-A Stimulated Endothelial Cell With Atomic Force Microscopy, Sei-Young Lee, Ana-Maria Zaske, Tommaso Novellino, Delia Danila, Mauro Ferrari, Jodie Conyers, Paolo Decuzzi

Faculty, Staff and Student Publications

TNF-α (tumor necrosis factor-α) is a potent pro-inflammatory cytokine that regulates the permeability of blood and lymphatic vessels. The plasma concentration of TNF-α is elevated (> 1 pg/mL) in several pathologies, including rheumatoid arthritis, atherosclerosis, cancer, pre-eclampsia; in obese individuals; and in trauma patients. To test whether circulating TNF-α could induce similar alterations in different districts along the vascular system, three endothelial cell lines, namely HUVEC, HPMEC, and HCAEC, were characterized in terms of 1) mechanical properties, employing atomic force microscopy; 2) cytoskeletal organization, through fluorescence microscopy; and 3) membrane overexpression of adhesion molecules, employing ELISA and immunostaining. Upon stimulation …

Will The Convention On Biological Diversity Put An End To Biological Control?, Joop C. Van Lenteren, Matthew J.W. Cock, Jacques Brodeur, Barbara I.P. Barratt, Franz Bigler, Karel Bolckmans, Fabian Haas, Peter G. Mason, José Roberto P. Parra

All Peer-Reviewed Publications

Will the Convention on Biological Diversity put an end to biological control? Under the Convention on Biological Diversity countries have sovereign rights over their genetic resources. Agreements governing the access to these resources and the sharing of the benefits arising from their use need to be established between involved parties. This also applies to species collected for potential use in biological control. Recent applications of access and benefit sharing principles have already made it difficult or impossible to collect and export natural enemies for biological control research in several countries. If such an approach is widely applied it would impede …

Hadoopt - Breaking The Scalability Limits Of Hadoop, Anup Talwalkar

Theses

The increasing use of computing resources in our daily lives leads to data generation at an astonishing rate. The computing industry is being repeatedly questioned for its ability to accommodate the unpredictable growth rate of data. It has encouraged the development of cluster based storage systems. Hadoop is a popular open source framework known for its massive cluster based storage. Hadoop is widely used in the computer industry because of its scalability, reliability and low cost of implementation. The data storage of the Hadoop cluster is managed by a user level distributed file system. To provide a scalable storage on …

Scalable Cooperative Caching Algorithm Based On Bloom Filters, Nodirjon Siddikov

Theses

This thesis presents the design, implementation and evaluation of a novel cooperative caching algorithm based on the bloom filter data structure. The new algorithm uses a decentralized approach to resolve the problems that prevent the existing solutions from being scalable. The problems consist of an overloaded manager, a communication overhead among clients, and a memory overhead on the global cache. The new solution reduces the manager load and the communication overhead by distributing the global cache information among cooperating clients. Thus, the manager no longer maintains the global cache. Furthermore, the memory overhead is decreased due to a bloom filter …

Are American Women Turning To Reusable And Greener Menstrual Products Due To Health And Environmental Pollution Concerns?, Ann Borowski

Theses

This research investigates environmental and health concerns related to disposable tampons and sanitary napkins. Much like diapers, tampons and sanitary napkins are comprised of synthetic materials that do not readily decompose. A woman will menstruate for approximately 40 years of her life. During that time, a significant amount of disposable feminine hygiene products accumulate in landfills and at times wash up on the shores of local beaches. Additionally, during the manufacturing and bleaching process, there is potential for dioxin to be created which has both health and environmental impacts. From a health perspective, many women experience discomfort, infection, and in …

Security Of The Sha-3 Candidates Keccak And Blue Midnight Wish: Zero-Sum Property, Liliya Andreicheva

Theses

The SHA-3 competition for the new cryptographic standard was initiated by National Institute of Standards and Technology (NIST) in 2007. In the following years, the event grew to one of the top areas currently being researched by the CS and cryptographic communities. The first objective of this thesis is to overview, analyse, and critique the SHA-3 competition. The second one is to perform an in-depth study of the security of two candidate hash functions, the finalist Keccak and the second round candidate Blue Midnight Wish. The study shall primarily focus on zero-sum distinguishers. First we attempt to attack reduced versions …

An Experiential Comparative Analysis Of Two Remote Usability Testing Methods, Erika Varga

Theses

Remote usability testing is a key tool for usability professionals. Several remote methods exist and it is often difficult to choose the appropriate method. Testing lower-fidelity prototypes often present unique problems because they provide minimally aesthetic and minimally interactive partial representations of a final product. This qualitative and experiential pilot study is an attempt to compare a remote synchronous (RS) usability testing method where the moderator and participant are displaced by space, and a remote asynchronous (RA) usability testing method where the moderator and participant are displaced by both time and space. An important byproduct of the comparison is the …

Service Level Agreements And Virtual Machines, Jordan Caminiti

Theses

Virtual machines (VMs) have been used for some time now, but only now with the newer and faster hardware that is being developed, now it is possible to consolidate many machines down to a single one running multiple instances of operating systems each with their own purpose. For as long as there have been users to use the servers, there has been the need for service level agreements. Now with the virtualization of services comes the need for a new breed of service level agreements. Service level agreements (SLAs) rarely exist for virtual servers unlike physical servers. Since this is …

Re: Sleep And The Family Doctor: Time To Lead, D. Bluestein, A. C. Healey, C. M. Rutledge

Ellmer School of Nursing Faculty Publications

No abstract provided.

Educating Advanced Practice Nurses In Using Social Media In Rural Health Care, Carolyn M. Rutledge, Michelle Renaud, Laurel Shephard, Michele Bordelon, Tina Haney, Donna Gregory, Paula Ayers

Ellmer School of Nursing Faculty Publications

Health care in the United States is facing a crisis in providing access to quality care for those in underserved and rural regions. Advanced practice nurses are at the forefront of addressing such issues, through modalities such as health care technology. Many nursing education programs are seeking strategies for better educating students on technology utilization. Health care technology includes electronic health records, telemedicine, and clinical decision support systems. However, little focus has been placed on the role of social media in health care. This paper describes an educational workshop using standardized patients and hands-on experiences to introduce advanced practice nurses …

Educating Advanced Practice Nurses In Using Social Media In Rural Health Care, Carolyn M. Rutledge, Michelle Renaud, Laurel Shepherd, Michele Bordelon, Tina Haney, Donna Gregory, Paula Ayers

Ellmer School of Nursing Faculty Publications

Health care in the United States is facing a crisis in providing access to quality care for those in underserved and rural regions. Advanced practice nurses are at the forefront of addressing such issues, through modalities such as health care technology. Many nursing education programs are seeking strategies for better educating students on technology utilization. Health care technology includes electronic health records, telemedicine, and clinical decision support systems. However, little focus has been placed on the role of social media in health care. This paper describes an educational workshop using standardized patients and hands-on experiences to introduce advanced practice nurses …

Coping Strategies Of Family Members Of Hospitalized Psychiatric Patients, Phyllis M. Eaton, Bertha L. Davis, Pamela V. Hammond, Esther H. Condon, Zina T. Mcgee

Ellmer School of Nursing Faculty Publications

This exploratory research paper investigated the coping strategies of families of hospitalized psychiatric patients and identified their positive and negative coping strategies. In this paper, the coping strategies of 45 family members were examined using a descriptive, correlational, mixed method research approach. Guided by the Neuman Systems Model and using the Family Crisis Oriented Personal Evaluation Scales and semistructured interviews, this paper found that these family members used more emotion-focused coping strategies than problem-focused coping strategies. The common coping strategies used by family members were communicating with immediate family, acceptance of their situation, passive appraisal, avoidance, and spirituality. The …

Evaluation Of The Iqa Delay Estimation Method, Yaye Keita, Mitsuru Saito

CUTR Faculty Journal Publications

The Incremental Queue Accumulation (IQA) method is the new delay estimation method for signalized intersections adopted for the Highway Capacity Manual 2010. Using a signalized intersection and a remote data collection facility, the IQA method was evaluated for its accuracy and for potential challenges that practitioners may encounter as they use the new method. The results were compared with delays obtained by the delay estimation models included in the Highway Capacity Manual 2000. It was found that the IQA method was promising and theoretically more robust than the current delay estimation model, but field data collection could be challenging. © …