Bus Transit Operational Efficiency Resulting from Passenger Boardings at Park-and-Ride Facilities

In order to save time and money by not driving to an ultimate destination, some urban commuters drive themselves a few miles to specially designated parking lots built for transit customers and located where trains or buses stop. The focus of this paper is the effect Park-and-Ride (P&R) lots have on the efficiency of bus transit as measured in five bus transit systems in the western U.S. This study describes a series of probes with models and data to find objective P&R influence measures that, when combined with other readily-available data, permit a quantitative assessment of the significance of P&R on transit efficiency. The authors developed and describe techniques that examine P&R as an influence on transit boardings at bus stops and on bus boardings along an entire route. The regression results reported are based on the two in-depth case studies for which sufficient data were obtained to examine (using econometric techniques) the effects of park-and-ride availability on bus transit productivity. Both Ordinary Least Square (OLS) regression and Poisson regression are employed. The results from the case studies suggest that availability of parking near bus stops is a stronger influence on transit ridership than residential housing near bus stops. Results also suggest that expanding parking facilities near suburban park-and-ride lots increases the productivity of bus operations as measured by ridership per service hour. The authors also illustrate that reasonable daily parking charges (compared to the cost of driving to much more expensive parking downtown) would provide sufficient capital to build and operate new P&R capacity without subsidy from other revenue sources

New Complexity Bounds for Certain Real Fewnomial Zero Sets

Consider real bivariate polynomials f and g, respectively having 3 and m monomial terms. We prove that for all m>=3, there are systems of the form (f,g) having exactly 2m-1 roots in the positive quadrant. Even examples with m=4 having 7 positive roots were unknown before this paper, so we detail an explicit example of this form. We also present an O(n^{11}) upper bound for the number of diffeotopy types of the real zero set of an n-variate polynomial with n+4 monomial terms.Comment: 8 pages, no figures. Extended abstract accepted and presented at MEGA (Effective Methods in Algebraic Geometry) 200

Numerical calculations of viscous compressible fluid flow over a flat plate and step geometry

Computer programs for numerical calculation of viscous compressible fluid flow over flat plat

Measuring the Economic Impact of High Speed Rail Construction for California and the Central Valley Region

The nation’s first high-speed rail project is under construction in California’s Central Valley as of the date of this report. This research analyzes the immediate economic impacts, focused on employment and spending generated by California High-Speed Rail (HSR) Construction Package 1 (CP1) in the Central Valley and the rest of California. The authors use a two-pronged approach that combines original economic analysis and modeling with case study vignettes that explore the economic impacts through the lens of a sample of businesses and individuals directly impacted by this phase of HSR development. Overall, the economic analysis suggests that CP1-related spending (forecasted through to 2019) will lead to more than 31,500 additional jobs (both part-time and full-time) by the year 2029. Growth is concentrated in Fresno County, with the number of additional jobs estimated at more than 15,500. The analysis considers job growth across a number of alternative scenarios, converting the raw jobs estimates to full-time equivalent job-years. Under the most conservative HSR spending scenario considered, over the 15-year period evaluated, more than 25,000 full-time equivalent job-years are created. This amount to 14,900 jobs per billion (real) dollars of spending, or a cost of approximately $67,200 per job-year

A New Definition Of A Business Model

This paper discusses the lack of agreement on the definition of a business model which is a recent addition to management literature since the dot com era.  An abbreviated literature review was discussed that emphasizes the different perspectives of business model definitions.  There are categories such as auction, subscription, or advertising business models which describe the processes between a buyer and seller (Rappa, 2005). Business models have also been defined in the literature as a system with components (Afuah&Tucci, 2001) or a method to make money (Weill&Vitale 2001). They have also been categorized as business to business models or business to consumer models (Haag, 2004)  This author has developed a new definition of a business model that focuses on the transaction between the buyer and seller, regardless of whether it is a traditional transaction, an electronic transaction or the type of transaction.  The paper has provided six comparisons of the difference between a traditional transaction between a buyer and a seller and an electronic transaction between a buyer and a seller. The direct comparisons of traditional and e-commerce business models illustrate the major component of a business model—the transaction that occurs between the seller and buyer and that the transaction must be included in the definition of a business model

Business Ethics Education: One Management Educators Perspective

Results from the 2005 National Business Ethics Survey (NBES) indicate that over half of employees observed at least one type of misconduct in the workplace during the past 12 months, with nearly 40% observing two or more violations (http://www.ethics.org). The President of the Ethics Resource Center, Dr. Patricia Harned, has stated that this statistic has not changed much over the past 5 years even though there is a rise in the number of companies that have implemented ethics programs (http://www.ethics.org) Business faculty has the opportunity to provide business students with ethical reasoning opportunities to meet these ethical challenges successfully.  AACSB has stated in their 2004 Ethics Education in Business Schools that…business education must encourage students to develop an understanding of the challenges surrounding business ethics and provide students with the tools to recognize and respond to ethical issues, both personally and organizationally (9). This paper outlines a proposed undergraduate business ethics education model that is developed in compliance with AACSB standards

A Case Study In Strategic Financial Planning In Health Service Organizations

Integrating strategic planning and financial planning is the best way for health service organizations (HSOs)  to ensure their budget allocations are appropriately targeted to long range solutions. In strategic financial planning, in order to ensure that there is long range financial success, annual budgets need to be analyzed from a long term organizational perspective. This paper will propose a step by step approach to strategic financial planning and their application to the healthcare industry and how the integration of these processes will result in a long term successful framework for achieving the HSO’s mission and vision. Cleveland Clinic will be discussed as an example of an HSO that has successfully utilized strategic financial planning

The Origin of the Meridiani Sediments: the Key for Understanding the Formation of Sulfates and Layered Deposits on Mars

Following the discoveries made by the Opportunity rover at Meridiani Planum, members of the MER science team proposed that the Meridiani deposits are playa evaporites reworked by eolian processes. Alternate hypotheses have also been proposed to explain the deposits at Meridiani Planum, and these have highlighted serious problems with the provenance of the sedimentary material in the proposed playa hypothesis. These problems include: indications of cation-conservative weathering, the lack of a topographic basin, the intimate commingling of the most soluble and least soluble salts, and the overall scale of the deposit. These observations are important challenges to the playa scenario, and suggest that the sediment was derived from a different source

The Impact of Poor Health on Education: New Evidence Using Genetic Markers

This paper examines the influence of health conditions on academic performance during adolescence. To account for the endogeneity of health outcomes and their interactions with risky behaviors we exploit natural variation within a set of genetic markers across individuals. We present strong evidence that these genetic markers serve as valid instruments with good statistical properties for ADHD, depression and obesity. They help to reveal a new dynamism from poor health to lower academic achievement with substantial heterogeneity in their impacts across genders. Our investigation further exposes the considerable challenges in identifying health impacts due to the prevalence of comorbid health conditions and endogenous health behaviors.health, education, genetic predisposition, obesity, ADHD, depression, instrumental variables, risky health behaviors