The State University of New York at New Paltz, known as SUNY New Paltz for short, is a public college in New Paltz, New York. It traces its origins to the New Paltz Classical School, a secondary institution founded in 1828 and reorganized as an academy in 1833. The College is one of only four SUNY universities in the New York metropolitan area. Wikipedia.
Li K.,State University of New York at New Paltz
Journal of Supercomputing | Year: 2012
In this paper, scheduling parallel tasks on multiprocessor computers with dynamically variable voltage and speed are addressed as combinatorial optimization problems. Two problems are defined, namely, minimizing schedule length with energy consumption constraint and minimizing energy consumption with schedule length constraint. The first problem has applications in general multiprocessor and multicore processor computing systems where energy consumption is an important concern and in mobile computers where energy conservation is a main concern. The second problem has applications in real-time multiprocessing systems and environments where timing constraint is a major requirement. Our scheduling problems are defined such that the energy-delay product is optimized by fixing one factor and minimizing the other. It is noticed that power-aware scheduling of parallel tasks has rarely been discussed before. Our investigation in this paper makes some initial attempt to energy-efficient scheduling of parallel tasks on multiprocessor computers with dynamic voltage and speed. Our scheduling problems contain three nontrivial subproblems, namely, system partitioning, task scheduling, and power supplying. Each subproblem should be solved efficiently, so that heuristic algorithms with overall good performance can be developed. The above decomposition of our optimization problems into three subproblems makes design and analysis of heuristic algorithms tractable. A unique feature of our work is to compare the performance of our algorithms with optimal solutions analytically and validate our results experimentally, not to compare the performance of heuristic algorithms among themselves only experimentally. The harmonic system partitioning and processor allocation scheme is used, which divides a multiprocessor computer into clusters of equal sizes and schedules tasks of similar sizes together to increase processor utilization. A threelevel energy/time/power allocation scheme is adopted for a given schedule, such that the schedule length is minimized by consuming given amount of energy or the energy consumed is minimized without missing a given deadline. The performance of our heuristic algorithms is analyzed, and accurate performance bounds are derived. Simulation data which validate our analytical results are also presented. It is found that our analytical results provide very accurate estimation of the expected normalized schedule length and the expected normalized energy consumption and that our heuristic algorithms are able to produce solutions very close to optimum. © Springer Science+Business Media, LLC 2010.
Li K.,State University of New York at New Paltz
IEEE Transactions on Computers | Year: 2012
Energy-efficient scheduling of sequential tasks with precedence constraints on multiprocessor computers with dynamically variable voltage and speed is investigated as combinatorial optimization problems. In particular, the problem of minimizing schedule length with energy consumption constraint and the problem of minimizing energy consumption with schedule length constraint are considered. Our scheduling problems contain three nontrivial subproblems, namely, precedence constraining, task scheduling, and power supplying. Each subproblem should be solved efficiently so that heuristic algorithms with overall good performance can be developed. Such decomposition of our optimization problems into three subproblems makes design and analysis of heuristic algorithms tractable. Three types of heuristic power allocation and scheduling algorithms are proposed for precedence constrained sequential tasks with energy and time constraints, namely, prepower-determination algorithms, postpower-determination algorithms, and hybrid algorithms. The performance of our algorithms are analyzed and compared with optimal schedules analytically. Such analysis has not been conducted in the literature for any algorithm. Therefore, our investigation in this paper makes initial contribution to analytical performance study of heuristic power allocation and scheduling algorithms for precedence constrained sequential tasks. Our extensive simulation data demonstrate that for wide task graphs, the performance ratios of all our heuristic algorithms approach one as the number of tasks increases. © 1968-2012 IEEE.
Li K.,State University of New York at New Paltz
IEEE Transactions on Parallel and Distributed Systems | Year: 2013
The performance of dynamic distance-based location management schemes (DBLMS) in wireless communication networks is analyzed. A Markov chain is developed as a mobility model to describe the movement of a mobile terminal in 2D cellular structures. The paging area residence time is characterized for arbitrary cell residence time by using the Markov chain. The expected number of paging area boundary crossings and the cost of the distance-based location update method are analyzed by using the classical renewal theory for two different call handling models. For the call plus location update model, two cases are considered. In the first case, the intercall time has an arbitrary distribution and the cell residence time has an exponential distribution. In the second case, the intercall time has a hyper-Erlang distribution and the cell residence time has an arbitrary distribution. For the call without location update model, both intercall time and cell residence time can have arbitrary distributions. Our analysis makes it possible to find the optimal distance threshold that minimizes the total cost of location management in a DBLMS. © 2012 IEEE.
Bose S.,State University of New York at New Paltz
Journal of Biosocial Science | Year: 2011
This study uses the third National Family Health Survey (2005-06) in India to investigate whether differences in women's status, both at the individual and community levels, can explain the persistent gender differential in nutritional allocation among children. The results show that girls are less likely than boys to receive supplemental food and more likely to be malnourished. In general it appears that higher women's status within a community, as well as higher maternal status, have beneficial effects on a daughter's nutritional status. Further, the moderating effects of community appear to be more consistent and stronger than the individual-level characteristics. A positive relationship between the percentage of literate women in a community and the gender differential in malnutrition appears to be an exception to the general findings regarding the beneficial nature of women's status on a daughter's well-being, showing the need for more than just basic adult literacy drives in communities to overcome the problem of daughter neglect. © Copyright Cambridge University Press 2011.
Stoffolano Jr. J.G.,University of Massachusetts Amherst |
Haselton A.T.,State University of New York at New Paltz
Annual Review of Entomology | Year: 2013
The diverticulated crop is a unique and overlooked foregut organ in the Diptera that affects many physiological and behavioral functions. Historically, the crop was viewed simply as a reservoir for excess nutrients. The crop lobes and crop duct form an elaborate sphincter and pump system that moves stored nutrients to the crop lobes, oral cavity, and the midgut. The storage capacity of the crop lobes is significant when filled maximally and supplies sufficient carbohydrates to sustain prolonged activity and flight, and adequate protein and lipids to facilitate reproductive events. Crop emptying is under complex neuroendocrine and neural control and may be influenced by multiple neuromessengers, such as serotonin and dromyosuppressin. The crop lobes also serve as a site for the initial mixing of enzymes from the salivary glands and antimicrobials from the labellar glands with ingested food. These food-processing functions are associated with behaviors unique to dipterans, such as regurgitation (or bubbling), nuptial gift giving, and substrate droplet deposition or trap-lining. © 2013 by Annual Reviews. All rights reserved.
Waltermaurer E.,State University of New York at New Paltz
Trauma, Violence, and Abuse | Year: 2012
Understanding the extent to which the general public justifies intimate partner violence (IPV) is necessarily to explain perpetration, victimization, and response to this behavior. This article provides a literature review of quantitative studies measuring IPV justification among the general population. Key word searching of two databases plus bibliographies, and the web yielded 23 studies that provided comparable measures of IPV justification. Results are summarized for the prevalence of IPV justification identified for each country including differences in justification based on the initiating event (e.g., burning food and infidelity), sociodemographic differences in justification and differences across countries. No study identified a zero prevalence of IPV justification and percentages varied considerably across and within countries. Females tended to report a higher rate of IPV justification than males and younger respondents tended to report a higher rate IPV justification than their older counterparts. Further research is needed to understand IPV justification within and across nations as well as to explore the impact this has on IPV prevalence and policy. © The Author(s) 2012.
Scheetz L.J.,State University of New York at New Paltz
Prehospital Emergency Care | Year: 2010
Background. Older injured persons are frequently undertriaged, increasing the risk for preventable mortality and morbidity in an already-vulnerable population. Changes made in 2006 to the American College of Surgeons Committee on Trauma (ACS-COT) Field Triage Decision Scheme might improve triage accuracy for this population. Objective. This study examined triage accuracy before and after the 2006 revisions. Methods. This secondary analysis of 2004, 2007, and 2008 data from the National Automotive Sampling System Crashworthiness Data System included persons aged 55 years and older who were transported to a hospital and had a maximum injury severity of uninjured or an Abbreviated Injury Scale score of 1 to 5. Trauma center and nontrauma center admission was a proxy for triage accuracy. Frequencies, means, standard deviations, sensitivities, specificities, positive predictive values (PPVs), and negative predictive values (NPVs) were calculated. Results. Although triage accuracy has improved from 2004 to 2008, the undertriage rate still remains higher than the ACS-COT target of 510. Overtriage rates have remained slightly above or within an acceptable range, suggesting that gains in triage accuracy have not unduly overburdened trauma centers. Both PPV and NPV have improved since 2004. Conclusions. There is a positive trend in triage accuracy for older injured persons since 2004. Ongoing funding, continued trauma system development with more training emphasis on scene evaluation of older adults, and the use of the ACS-COT triage decision scheme are essential for further improvement of triage accuracy. More research is needed to identify and validate additional triage criteria that are sensitive to severe injuries in older persons. © 2011 National Association of EMS Physicians.
Dickinson M.,State University of New York at New Paltz
American Ethnologist | Year: 2016
In the United States, the number of people receiving state-subsidized food aid has risen dramatically since 2001. This increase complicates the well-worn story that the post-Fordist welfare state has been continuously cut back in the neoliberal era, indicating instead that it is expanding to subsidize poor workers' participation in the formal labor market. In New York City, welfare office workers operationalize policies that ease access to food assistance for poor workers who can demonstrate that they are formally employed. Meanwhile, workfare programs punish the unemployed and marginal workers by making them work for food stamps. This conservative, paternalistic welfare regime commodifies labor, creates new patterns of stratification among the urban poor, and redraws the terms of economic citizenship. [welfare, poverty, citizenship, food policy, employment, social stratification, New York City] © 2016 by the American Anthropological Association.
Tsai C.-Y.,State University of New York at New Paltz
International Journal of Production Economics | Year: 2011
The credit terms for accounts receivable (AR) offered by sellers to buyers not only create a time lag between supply chain physical flow and cash flow, but also increase the collection risk contributed by late collection and default. Previous studies describing the relationship between the two major supply chain flows did not consider the collection risk, which poses a serious challenge to companies with limited cash resources when seeking growth opportunities in sales. This study first delineates the relationship between the two flows during a growth period without imposing any constraints. A stochastic optimization model is then developed to observe the managerial implications of cash flow risk under tight cash constraints. © 2010 Elsevier B.V. All rights reserved.
DeSantis K.,State University of New York at New Paltz
Nuclear receptor signaling | Year: 2012
Identification of ligands that interact with nuclear receptors is both a major biological problem and an important initial step in drug discovery. Several in vitro and in vivo techniques are commonly used to screen ligand candidates against nuclear receptors; however, none of the current assays allow screening without modification of either the protein and/or the ligand in a high-throughput fashion. Differential scanning fluorimetry (DSF) allows unmodified potential ligands to be screened as 10μL reactions in 96-well format against partially purified protein, revealing specific interactors. As a proof of principle, we used a commercially-available nuclear receptor ligand candidate chemical library to identify interactors of the human estrogen receptor α ligand binding domain (ERα LBD). Compounds that interact specifically with ERα LBD stabilize the protein and result in an elevation of the thermal denaturation point, as monitored by the environmentally-sensitive dye SYPRO orange. We successfully identified all three compounds in the library that have previously been identified to interact with ERα, with no false positive results.