Digital Commons Network^™

Linear Programming-Based Estimators In Simple Linear Regression, Daniel P. A. Preve, Marcelo C. Medeiros

Research Collection School Of Economics

In this paper we introduce a linear programming estimator (LPE) for the slope parameter in a constrained linear regression model with a single regressor. The LPE is interesting because it can be superconsistent in the presence of an endogenous regressor and, hence, preferable to the ordinary least squares estimator (LSE). Two different cases are considered as we investigate the statistical properties of the LPE. In the first case, the regressor is assumed to be fixed in repeated samples. In the second, the regressor is stochastic and potentially endogenous. For both cases the strong consistency and exact finite-sample distribution of the …

Arrow-Fisher-Hanemann-Henry And Dixit-Pindyck Option Values Under Strategic Interactions, Tomoki Fujii, Ryuichiro Ishikawa

Research Collection School Of Economics

We extend the Arrow-Fisher-Hanemann-Henry (AFHH) and Dixit-Pindyck (DP) option values to game situations. By reinterpreting the AFHH option value as a change in the surplus from conservation because of the prospect of future information, we deal with the conceptual difficulty associated with the AFHH option value in the presence of strategic interactions. We then introduce the DP option value into a game situation. We show that the equivalence between the expected value of information and the DP option value in the standard model does not hold under strategic interactions.

Impact Of Food Inflation On Poverty In The Philippines, Tomoki Fujii

Research Collection School Of Economics

We simulate the impact of actual food price increase between June 2006 and June 2008 on poverty across different areas and whether the household’s main income source is agricultural activities. We explicitly treat heterogeneity in food price changes and the patterns of consumption and production by merging a expenditure survey dataset and a price dataset at the provincial level or lower. While the increase of head count index is larger for non-agricultural households than agricultural households, the opposite is true for the poverty gap and poverty severity measures, because poor agricultural households are particularly vulnerable to food inflation.

Dating The Timeline Of Financial Bubbles During The Subprime Crisis, Peter C. B. Phillips, Jun Yu

Research Collection School Of Economics

A new recursive regression methodology is introduced to analyze the bubble characteristics of various financial time series during the subprime crisis. The methods modify a technique proposed in Phillips, Wu, and Yu (2011) and provide a technology for identifying bubble behavior with consistent dating of their origination and collapse. The tests serve as an early warning diagnostic of bubble activity and a new procedure is introduced for testing bubble migration across markets. Three relevant financial series are investigated, including a financial asset price (a house price index), a commodity price (the crude oil price), and one bond price (the spread …

Specification Sensitivity In Right-Tailed Unit Root Testing For Explosive Behavior, Peter C. B. Phillips, Shu-Ping Shi, Jun Yu

Research Collection School Of Economics

Right-tailed unit root tests have proved promising for detecting exuberance in economic and financial activities. Like left-tailed tests, the limit theory and test performance are sensitive to the null hypothesis and the model specification used in parameter estimation. This paper aims to provide some empirical guidelines for the practical implementation of right-tailed unit root tests, focusing on the sup ADF test of Phillips, Wu and Yu (2011), which implements a right-tailed ADF test repeatedly on a sequence of forward sample recursions. We analyze and compare the limit theory of the sup ADF test under deferent hypotheses and model specifications. The …

Mncs And The Labour Crunch: Local Jobs May Suffer If Foreign Supply Is Curbed, Hian Teck Hoon

Research Collection School Of Economics

No abstract provided.

Reflection And Transmission Of Line-Source Excited Pulsed Em Fields At A Thin, High-Contrast Layer With Dielectric And Conductive Properties, Adrianus T. De Hoop, Lijun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

A methodology is presented for analytically modeling the reflection and transmission of line-source excited pulsed electromagnetic fields fields at a thin, planar, high-contrast layer with dielectric and conductive properties. Closed-form time-domain expressions are derived for the field components in a two-dimensional setting via an extension of the Cagniard-DeHoop method. © 2011 IEEE.

An Analysis Of Vp8, A New Video Codec For The Web, Sean Cassidy

Theses

Video is an increasingly ubiquitous part of our lives. Fast and efficient video codecs are necessary to satisfy the increasing demand for video on the web and mobile devices. However, open standards and patent grants are paramount to the adoption of video codecs across different platforms and browsers. Google On2 released VP8 in May 2010 to compete with H.264, the current standard of video codecs, complete with source code, specification and a perpetual patent grant. As the amount of video being created every day is growing rapidly, the decision of which codec to encode this video with is paramount; if …

A Dynamic Programming Approach: Improving The Performance Of Wireless Networks, Sandeep Kolli, Maciej Zawodniok

Electrical and Computer Engineering Faculty Research & Creative Works

Traditional wireless networks focus on transparent data transmission where the data are processed at either the source or destination nodes. in contrast, the proposed approach aims at distributing data processing among the nodes in the network thus providing a higher processing capability than a single device. Moreover, energy consumption is balanced in the proposed scheme since the energy intensive processing will be distributed among the nodes. the performance of a wireless network is dependent on a number of factors including the available energy, energy efficiency, data processing delay, transmission delay, routing decisions, security architecture etc. Typical existing distributed processing schemes …

Bs News November/December

Building Services Engineering

No abstract provided.

Comparison Of Jeopardy Game Format Versus Traditional Lecture Format As A Teaching Methodology In Medical Education., Mohammad N. Khan, Abdulwahab Telmesani, Abdulaziz Alkhotani, Abdelaziz Elzouki, Burhan Edrees, Mohammad H. Alsulimani

Saudi Medical Journal

OBJECTIVES: To compare students’ performance, satisfaction, and retention of knowledge between a ‘jeopardy game format’ and a ‘didactic lecture format’ in teaching viral exanthema to fifth-year medical students. METHODS: We conducted a parallel-group randomized controlled trial in the Department of Pediatrics, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia from November 2008 to January 2009. We randomized fifth-year medical students into 2 groups. We taught viral exanthema to group one in lecture format, while group 2 received the same instruction in a jeopardy style game format. Both groups underwent a pretest, post-test I, and satisfaction survey. We conducted post-test …

The Delmar Loop Area Retail Plan & Development Strategy, Washington University In St. Louis

Books and Monographs

The HR&A team set out to create a visionary plan for the future of The Loop Area, identifying opportunities for growth through comprehensive analysis.

The HR&A team formally defined The Loop Area as the census block groups within approximately one-half mile of the proposed trolley route, which will run from the Missouri History Museum in Forest Park north on DeBaliviere Avenue, turn west at Delmar Boulevard, and continue west through the Delmar Loop to Delmar and Kingsland. This area is roughly bounded by Olive Blvd. /Maple Ave. to the north, Union Blvd. to the east, Forest Park Parkway to the …

Knowledge, Attitudes, And Practices Regarding Cervical Cancer Screening Among Physicians In The Western Region Of Saudi Arabia., Khalid H. Sait

Saudi Medical Journal

OBJECTIVES: To evaluate knowledge and practice of the Pap test, the role of HPV in the etiology of cervical cancer, and attitudes regarding the HPV vaccine of female physicians in the Western Region of Saudi Arabia. METHODS: A cross-sectional descriptive study using an interview with a structured questionnaire to obtain information regarding cervical cancer, practice in screening for cervical cancer, and attitudes of female physicians regarding the HPV vaccine in different health facilities in Saudi Arabia. The study was performed in the Department of Obstetrics and Gynecology, Faculty of Medicine, King Abdulaziz University Hospital, Jeddah, Kingdom of Saudi Arabia, between …

The Corroborative Effect Of Lies, Siyuan Chen

Research Collection Yong Pung How School Of Law

PP v Kamrul Hasan Abdul Quddus [2010] SGHC 7; Kamrul Hasan Abdul Quddus v PP [2011] SGCA 52. Overview of the case: In PP v Kamrul Hasan Abdul Quddus, the accused was charged with murder. He and the deceased had been in a tumultuous relationship, and the main evidence that connected the deceased’s death to the accused, apart from the fact that her body was found in the construction site that the accused worked at, was that DNA taken from her rectum tested positive for semen that matched his DNA.

The "Party Scope" Of Exclusive Jurisdiction Clauses: Global Partners Fund Ltd V Babcock & Brown Ltd, Adeline Chong

Research Collection Yong Pung How School Of Law

Coherency in international litigation and upholding exclusive jurisdiction clauses, for the most part, work hand in hand. Courts generally take jurisdiction on very wide and exorbitant grounds. There is therefore the ever-present risk of irreconcilable judgments stemming from multiple courts hearing disputes arising from the same transaction or state of affairs. One way in which such a risk is averted is by giving effect to exclusive jurisdiction clauses where parties have included such clauses into their contracts. Thus, when faced with an action brought in breach of an exclusive jurisdiction clause in favour of another forum, the starting position is …

Prevention Of Vessel-Source Marine Pollution: A Note On The Challenges And Prospects For Chinese Practice Under International Law, Nengye Liu, Frank Maes

Research Collection Yong Pung How School Of Law

This article examines China’s domestic legal regime for the prevention of vessel sourcepollution. It pays special attention to the recently adopted Regulation on Preventionand Control of Marine Pollution from Vessels. Potential challenges and emerging issuesthat China has to confront are addressed, including: application of the legislation todisputed sea areas between China and its neighbors, freedom of navigation in theexclusive economic zone, reduction of emission from ships, and prevention of invasivespecies from ballast water.

Comparison Of Microwave And Conventionally Sintered Yttria-Doped Zirconia Ceramics, Colin J. Reidy, Thomas J. Fleming, Stuart Hampshire, Mark R. Towler

Chemical and Biochemical Engineering Faculty Research & Creative Works

This paper reports on improvement of the physical and mechanical properties of Y₂O₃-ZrO₂ ceramics through compositional optimization, the use of nanograined powders and utilization of microwave sintering. ZrO₂ with 2-5 mol% Y₂O₃, prepared from nanopowders, was sintered in both conventional and microwave furnaces under exactly the same heating schedule. It was found that microwave sintering improves physical and mechanical properties of Y₂O₃-ZrO₂ ceramics compared with conventional sintering. Compositions containing 2 mol% Y₂O₃ exhibit the greatest improvement due to retention of tetragonal ZrO …

Maximum Lifetime Coverage Preserving Scheduling Algorithms In Sensor Networks, Maggie X. Cheng, Xuan Gong

Computer Science Faculty Research & Creative Works

In wireless sensor networks, when each target is covered by multiple sensors, sensors can take turns to monitor the targets in order to extend the lifetime of the network. in this paper, we address how to improve network lifetime through optimal scheduling of sensor nodes. We present two algorithms to achieve the maximum lifetime while maintaining the required coverage: A linear programming-Based exponential-time exact solution, and an approximation algorithm. Numerical simulation results from the approximation algorithm are compared to the exact solution and show a high degree of accuracy and efficiency. © 2010 Springer Science Business Media, LLC.

Paim: Peer-Based Automobile Identity Management In Vehicular Ad-Hoc Network, Anna Squicciarini, Dan Lin, Alessandro Mancarella

Computer Science Faculty Research & Creative Works

The emerging Vehicular Ad-hoc Network (VANET) technology will enable many exciting applications such as vehicular safety assistance and mobile entertainment. One of the key challenges toward successful roll-out of VANET applications is to provide security and privacy preserving mechanisms for users. Existing efforts on this topic rely heavily on infrastructure like road-side units which however are not available everywhere. to minimize the dependence on infrastructure, we propose a novel Peer-Based Automobile Identity Management (PAIM) Framework which is mainly based on vehicle-to-vehicle communication. PAIM supports dynamic event-Based moving zones formed by vehicles sharing common interest. PAIM achieves the level of privacy …

Performance Improvement For Collection Operations Using Join Query Optimization, Venkata Krishna Suhas Nerella, Sanjay Kumar Madria, Thomas Weigert

Computer Science Faculty Research & Creative Works

Programming languages with explicit support for queries over collections allow programmers to express operations on collections more abstractly than relying on their realization in loops or through provided libraries. Join optimization techniques from the field of database technology support efficient realizations of such language constructs. We describe an algorithm that performs run-time query optimization and is effective for single runs of a program. the proposed approach relies on histograms built from the data at run time to estimate the selectivity of joins and predicates in order to construct query plans. Information from earlier executions of the same query during run …

Investigating Combinatorial Approaches In Virtual Screening On Human Inducible 6-Phosphofructo-2-Kinase/Fructose-2,6-Bisphosphatase (Pfkfb3): A Case Study For Small Molecule Kinases, Robert B. Crochet, Michael C. Cavalier, Minsuh Seo, Jeong Do Kim, Young Sun Yim, Seung Jong Park, Yong Hwan Lee

Computer Science Faculty Research & Creative Works

Efforts toward improving the predictiveness in tier-based approaches to virtual screening (VS) have mainly focused on protein kinases. Despite their significance as drug targets, small molecule kinases have been rarely tested with these approaches. In this paper, we investigate the efficacy of a pharmacophore screening-combined structure-based docking approach on the human inducible 6-phosphofructo-2-kinase/fructose-2,6-bisphosphatase, an emerging target for cancer chemotherapy. Six out of a total 1364 compounds from NCI's Diversity Set II were selected as true actives via throughput screening. Using a database constructed from these compounds, five programs were tested for structure-based docking (SBD) performance, the MOE of which showed …

Virginia Should Abolish The Archaic Tort Defense Of Contributory Negligence And Adopt A Comparative Negligence Defense In Its Place, Peter Nash Swisher

University of Richmond Law Review

No abstract provided.

Finite Element Based Generalized Impedance Boundary Condition For Complicated Em Calculation, Shiquan He, Zaiping Nie, Jun Zh Huang, Lijun Jiang, Weng Cho Chew

Electrical and Computer Engineering Faculty Research & Creative Works

In this paper, a finite element based generalized impedance boundary condition (FEM-GIBC) is proposed to solve complicated electromagnetic (EM) problems. Complex structures with arbitrary inhomogeneity and shapes are modeled with the finite element method, and their scattering contributions are transformed to generalized impedance conditions on their boundaries. For each sub-domain, a special GIBC can be established and it is only related to the structures in this domain. Hence, for finite periodic structures, a representative GIBC can be formulated at the boundary of a unit cell. After the GIBC at each boundary is established, the electromagnetic coupling between each impedance boundary …

Reframing Student Accommodation In Education Abroad: Reporting On A Cross-National Study Of Learning Outcomes, Anthony C. Ogden, Dan Dewey, Tomomi Kumai

Faculty Publications

All too often student accommodation is understood as a minor component of an education abroad program with only trivial impact on the overall educational experience. As such, students are frequently permitted to choose housing based on location, cost, convenience and more frequently, on the availability of amenities, such as wireless Internet, cable, and telephone. Unfortunately, the prioritization given to such logistical and practical arrangements tends to overshadow the fundamental learning potential of student accommodation. Through active reflection and experimentation, the learning that takes place in student accommodation can lead to meaningful and transformative learning.

This “theory to practice” pilot study …

Constitutional Right Not To Participate In Abortions: Roe, Casey, And The Fourteenth Amendment Rights Of Healthcare Providers, The, Mark L. Rienzi

Notre Dame Law Review

The article presents information the constitutional rights of healthcare provider to decide on whether to participate in abortion of pregnant woman. It includes information on Fourteenth Amendment Rights of healthcare providers that provides them a right to decide to involve in the procedure of abortion. It also discusses the historical overview of healthcare provider's right to participate in abortion.

Hobbs Leviathan: The Dangerous Breadth Of The Hobbs Act And Other Corruption Statutes, The, John S. Gawey

Notre Dame Law Review

The article presents information on the Hobbs Act enacted in the U.S. in order to cease criminal activities related to extortion, racketeering and robbery. It includes information on a Supreme Court case United States v. Local 807 International Brotherhood of Teamsters wherein the court accused defendant for engaging in violent activities to demand ransom from trucks that carried merchandise to New York City.

Political Risk And Sovereign Debt Contracts, Eric A. Posner, Stephen J. Choi, G. Mitu Gulati

Public Law and Legal Theory Working Papers

Default on sovereign debt is a form of political risk. Issuers and creditors have responded to this risk both by strengthening the terms in sovereign debt contracts that enable creditors to enforce their debts judicially and by creating terms that enable sovereigns to restructure their debts. These apparently contradictory approaches reflect attempts to solve an incomplete contracting problem in which debtors need to be forced to repay debts in good states of the world; debtors need to be granted partial relief from debt payments in bad states; debtors may attempt to exploit divisions among creditors in order to opportunistically reduce …

Practice In School Enrollment Projections, Xiaomin Ruan

BBER Publications

A presentation on the challenges faced by UNM-GPS demographic researchers in projecting school enrollments. Briefly discusses the problems with forecasting any small area's population, as well as conditions particular to New Mexico, such as migration in the southern border counties. The project's methodology including data preparation, grade progression ratios, and regression modeling are described, using two cases to illustrate: Clovis Municipal Schools and Central Consolidated Schools in San Juan County. Includes tables and charts.

Are There Contagion Effects In Information Technology And Business Process Outsourcing?, Arti Mann, Robert J. Kauffman, Kunsoo Han, Barrie R. Nault

Research Collection School Of Computing and Information Systems

We model the diffusion of IT outsourcing using announcements about IT outsourcing deals. We estimate a lognormal diffusion curve to test whether IT outsourcing follows a pure diffusion process or there are contagion effects involved. The methodology permits us to study the consequences of outsourcing events, especially mega-deals with IT contract amounts that exceed US$1 billion. Mega-deals act, we theorize, as precipitating events that create a strong basis for contagion effects and are likely to affect decision-making by other firms in an industry. Then, we evaluate the role of different communication channels in the diffusion process of IT outsourcing by …

A Brain-Inspired Model Of Hierarchical Planner, Budhitama Subagdja, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

Hierarchical planning is an approach of planning by composing and executing hierarchically arranged plans to solve some problems. Most symbolic-based hierarchical planners have been devised to allow the knowledge to be described expressively. However, a great challenge is to automatically seek and acquire new plans on the fly. This paper presents a novel neural-based model of hierarchical planning that can seek and acquired new plans on-line if the necessary knowledge are lacking. Inspired by findings in neuropsychology, plans can be inherently learnt, retrieved, and manipulated simultaneously rather than discretely processed like in most symbolic approaches. Using a multi-channel adaptive resonance …