8,709 research outputs found

    Modeling the University Decision Process: The Effects of Faculty Participation in University Decision Making

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    This paper develops models of decision making in a university setting with and without faculty participation. The models predict values for the level of services or programs offered and the quality of those services in a university setting for either private nonprofit or public universities. These predictions indicate conditions under which outcomes are similar or differ with faculty participation in the decision process. The model predicts that without shared governance that universities may overinvest in non-academic quality (e.g. athletics, recreational activities). This would be exacerbated in for-profit forms of higher education. Notably, nonprofit and/or public institutions are not inefficient relative to for-profit institutions, which questions the rationale for subsidies to for-profit institutions. If academic quality provides positive externalities as has been suggested in the literature, then shared governance may be socially preferred to university decision making without faculty involvement.higher education, faculty governance, university decision making, incentives, nonprofit organization, public organization, organizational behavior

    IRD dropout study

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    This final report describes work performed by SRS Technologies for the NASA Marshall Space Flight Center under Contract NAS8-39077, entitled 'Integrated Receiver-Decoder Dropout Study'. The purpose of the study was to determine causes of signal fading effects on ultra-high-frequency (UHF) range safety transmissions to the Space Shuttle during flyout. Of particular interest were deep fades observed at the External Tank (ET) Integrated Receiver-Decoder (IRD) during the flyout interval between solid rocket booster separation and ET separation. Analytical and simulation methods were employed in this study to assess observations captured in flight telemetry data records. Conclusions based on the study are presented in this report, and recommendations are given for future experimental validation of the results

    Equity of Inpatient Health Care in Rural Tanzania:\ud A Population- and Facility-Based Survey

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    To explore the equity of utilization of inpatient health care at rural Tanzanian health centers through the use of a short wealth questionnaire.Methods: Patients admitted to four rural health centers in the Kigoma Region of Tanzania from May 2008 to May 2009 were surveyed about their illness, asset ownership and demographics. Principal component analysis was used to compare the wealth of the inpatients to the wealth of the region’s general population, using data from a previous population-based survey. Among inpatients, 15.3% were characterized as the most poor, 19.6% were characterized as very poor, 16.5% were characterized as poor, 18.9% were characterized as less poor, and 29.7% were characterized as the least poor. The wealth distribution of all inpatients (p < 0.0001), obstetric inpatients (p < 0.0001), other inpatients (p < 0.0001), and fee-exempt inpatients (p < 0.001) were significantly different than the wealth distribution in the community population, with poorer patients underrepresented among inpatients. The wealth distribution of pediatric inpatients (p = 0.2242) did not significantly differ from the population at large. The findings indicated that while current Tanzanian health financing policies may have improved access to health care for children under five, additional policies are needed to further close the equity gap, especially for obstetric inpatients.\u

    The Diseconomies of Oil Spill in Niger Delta of Nigeria

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    Oil is the highest contributor to the growth and development of the Nigerian economy. However the attendant pollution of the environment and the subsequent erosion of the means of livelihood of oil producing communities are anti sustainable development. This paper examines the problems of oil spillage, its implication for ecosystem, and calls for the design of appropriate policies to sustain environmental protection and the economic growth and development of oil producing communities

    Niemann-Pick Type C Disease Reveals a Link between Lysosomal Cholesterol and PtdIns(4,5)P2 That Regulates Neuronal Excitability.

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    There is increasing evidence that the lysosome is involved in the pathogenesis of a variety of neurodegenerative disorders. Thus, mechanisms that link lysosome dysfunction to the disruption of neuronal homeostasis offer opportunities to understand the molecular underpinnings of neurodegeneration and potentially identify specific therapeutic targets. Here, using a monogenic neurodegenerative disorder, NPC1 disease, we demonstrate that reduced cholesterol efflux from lysosomes aberrantly modifies neuronal firing patterns. The molecular mechanism linking alterations in lysosomal cholesterol egress to intrinsic tuning of neuronal excitability is a transcriptionally mediated upregulation of the ABCA1 transporter, whose PtdIns(4,5)P2-floppase activity decreases plasma membrane PtdIns(4,5)P2. The consequence of reduced PtdIns(4,5)P2 is a parallel decrease in a key regulator of neuronal excitability, the voltage-gated KCNQ2/3 potassium channel, which leads to hyperexcitability in NPC1 disease neurons. Thus, cholesterol efflux from lysosomes regulates PtdIns(4,5)P2 to shape the electrical and functional identity of the plasma membrane of neurons in health and disease

    The Influence of Gender on Junior Secondary School Students Attitude towards Mathematics in Ovia North East Local Government Area of Edo State

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    This paper is on the influence of gender on junior secondary school student’s attitude towards mathematics in Ovia North East local government area of Edo state. The descriptive survey design was employed for the study. The population of the study comprised of all the JSS3 students, a total of Three Thousand Six Hundred and Ninety (3690) students in the 12 public junior secondary schools in in Ovia North East local government area of Edo State. Three schools selected from the 11 wards in the local government constituted the sample of the study. The simple random technique was used to select one hundred and fifty students (fifty from each of the three schools) in the Local Government Area. The instrument that was used for this study was the Secondary Student Mathematics Questionnaire (SSMQ). Mean score, t-test and analysis of variance was used to analyze the responses from the respondents. It was revealed that the attitude of the student towards mathematics was positive. The study also revealed that there is a difference between the attitude of male and female students in mathematics.Key words: Mathematics, gender, attitude, and performanc

    On Forecast Performance Using a Class of Weighted Moving Average Processes for Time Series

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    In this paper, we consider a class of weighted moving average models called the k-th moving average, the k-th weighted moving average and the k-th exponential weighted moving average models for modeling and forecasting economic time series data. Using real time series data set, we compare the ability of these various models to smooth the available data and also use an out of sample forecast performance to determine the best model among the various competitive models. Our findings is that the k-th exponential weighted moving average model performed best when all the three models where used to smooth our  time series data, while the k-th simple moving average model outperformed the others in terms of future forecasting. Keywords: k-th moving average; k-th weighted moving average; k-th exponential weighted moving average; forecastin

    Bipartite entangled stabilizer mutually unbiased bases as maximum cliques of Cayley graphs

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    We examine the existence and structure of particular sets of mutually unbiased bases (MUBs) in bipartite qudit systems. In contrast to well-known power-of-prime MUB constructions, we restrict ourselves to using maximally entangled stabilizer states as MUB vectors. Consequently, these bipartite entangled stabilizer MUBs (BES MUBs) provide no local information, but are sufficient and minimal for decomposing a wide variety of interesting operators including (mixtures of) Jamiolkowski states, entanglement witnesses and more. The problem of finding such BES MUBs can be mapped, in a natural way, to that of finding maximum cliques in a family of Cayley graphs. Some relationships with known power-of-prime MUB constructions are discussed, and observables for BES MUBs are given explicitly in terms of Pauli operators.Comment: 8 pages, 1 figur
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