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Search Results: 1 - 10 of 20581 matches for " James Lambrinos "
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Using Sports Wagering Markets to Evaluate and Compare Team Winning Streaks in Sports  [PDF]
R. Alan Bowman, Thomas Ashman, James Lambrinos
American Journal of Operations Research (AJOR) , 2015, DOI: 10.4236/ajor.2015.55029
Abstract: Point spreads and money lines from sports wagering markets are used to evaluate the impressiveness of team streaks. Sports wagering data have previously been useful in assessing competitive balance in sports. Our approach was motivated by the amount of media scrutiny that accompanied the winning streak of the NBA’s Miami Heat and the point streak of the NHL’s Chicago Blackhawks which occurred simultaneously for the most part in 2013. The topic came to the forefront again with the 2014-2015 winning streak of the Atlanta Hawks. Three streaks are highlighted in our paper. The length of the streaks, the quality of the competition, injuries, and a variety of other factors were mentioned in the media but the discussion was limited to subjective opinions as no way of properly weighing relative influence of the factors was identified. Wagering markets provide an excellent source of information for making these judgments. Several complementary measures are described and the most impressive team streaks within and across professional baseball, basketball, football, and ice hockey are identified.
Active Modified Atmosphere Packaging of Fresh-cut Bell Peppers: Effect on Quality Indices
Helen Manolopoulou,Gregory Lambrinos,George Xanthopoulos
Journal of Food Research (JFR) , 2012, DOI: 10.5539/jfr.v1n3p148
Abstract: Fresh-cut green bell peppers (Capsicum annuum L.) were stored in modified atmosphere packaging (MAP) made of impermeable high-density polyethylene film. Two in-packaging atmospheres and storage temperatures (0 oC and 5 oC) were tested. The respiration rate of the unpackaged produce and the in-package gas concentration, mass loss, firmness, skin colour, ascorbic acid and visual quality of the packaged produce were estimated. Cutting, increased respiration rate of the unpackaged produce by 24% compared to the intact produce for the same storage temperature. After 5 days of storage at 5 °C, significant O2 depletion of the active modified atmosphere was found. Limited mass loss (0.4-0.5% of the initial mass) and firmness degradation were estimated in both storage temperatures due to the beneficial effect of packaging. The hue angle (h*) reduction was limited in all cases and the initial green colour was preserved. Initial ascorbic acid content was preserved at 0 °C, but significantly increased at 5 °C. The visual quality of the packaged produce was assessed by six trained panelists and found that was not significantly changed at 0 °C storage. In conclusion, the tested active MAP maintained the initial quality indices of fresh-cut peppers (cv. Twingo F1) for up to 10 days at 0 °C but not at 5 °C.
Plant community variation across a puna landscape in the Chilean Andes
LAMBRINOS,JOHN G; KLEIER,CATHERINE C; RUNDEL,PHILIP W;
Revista chilena de historia natural , 2006, DOI: 10.4067/S0716-078X2006000200009
Abstract: we describe patterns of plant species and growth form abundance in the puna vegetation of parque nacional lauca, chile. at more than 4,300 m, the extreme habitat of the study site supported relatively few species. these few species, however, represented a diverse array of growth forms that were organized with respect to distinct environmental gradients. both species richness and growth form diversity increased with the degree of habitat rockiness and on more xeric north and east facing slopes. these xeric, rocky sites supported the greatest overall abundance of cushion forms. less rocky sites with more soil development supported a greater abundance of tussock grass and shrub forms. congeneric species occupied distinct microhabitats and were often markedly divergent in growth form. these patterns suggest that water and thermal stress are critical forces shaping functional form as well as community organization in the high andean puna
Plant community variation across a puna landscape in the Chilean Andes Variación en la comunidad vegetal de un paisaje de puna en los Andes chilenos
JOHN G LAMBRINOS,CATHERINE C KLEIER,PHILIP W RUNDEL
Revista chilena de historia natural , 2006,
Abstract: We describe patterns of plant species and growth form abundance in the puna vegetation of Parque Nacional Lauca, Chile. At more than 4,300 m, the extreme habitat of the study site supported relatively few species. These few species, however, represented a diverse array of growth forms that were organized with respect to distinct environmental gradients. Both species richness and growth form diversity increased with the degree of habitat rockiness and on more xeric north and east facing slopes. These xeric, rocky sites supported the greatest overall abundance of cushion forms. Less rocky sites with more soil development supported a greater abundance of tussock grass and shrub forms. Congeneric species occupied distinct microhabitats and were often markedly divergent in growth form. These patterns suggest that water and thermal stress are critical forces shaping functional form as well as community organization in the high Andean puna Describimos los patrones de abundancia de las especies vegetales y las formas de vida en la vegetación de puna en el Parque Nacional Lauca, Chile. A una altitud que excede los 4.300 m de altitud, el hábitat extremo de nuestro sitio de estudio presenta relativamente pocas especies. Dichas especies, sin embargo, representan un arreglo diverso de formas de vida organizadas con respecto a distintos gradientes ambientales. Tanto la riqueza de especies como el hábito de crecimiento aumentaron en los suelos más rocosos y en las pendientes expuestas al norte y al este, cuya vegetación es más xerófila. Dichos sitios presentaron la mayor abundancia en formas de cojines. Los sitios menos rocosos con un suelo más desarrollado presentaron una mayor abundancia de pastos y arbustos. Distintos microhábitats fueron ocupados por especies congénericas que con frecuencia divergieron en su hábito de crecimiento. Los patrones observados sugieren que el agua y el estrés térmico son fuerzas críticas que moldean la forma funcional de las especies vegetales así como la organización de las comunidades de plantas en la puna altoandina
Beijing’s Policies for Managing Han and Ethnic-Minority Chinese Communities Abroad
James To
Journal of Current Chinese Affairs , 2012,
Abstract: The overseas Chinese (OC) form a vast network of powerful interest groups and important political actors capable of shaping the future of China from abroad by transmitting values back to their ancestral homeland (Tu 1991). While the Chinese Communist Party (CCP) welcomes and actively seeks to foster relations with the OC in order to advance China’s national interests, some cohorts may be hostile to the regime. In accordance with their distinct demographic and ethnic pro-files, the CCP’s qiaowu (侨务, OC affairs) infrastructure serves to entice, co-opt, or isolate various OC groupings. This article summarises the policies for managing different subsets of OC over the past three dec-ades, and argues that through qiaowu, the CCP has successfully unified cooperative groups for China’s benefit, while preventing discordant ones from eroding its grip on power.
The Program Assessment and Improvement Cycle Today: A New and Simple Taxonomy of General Types and Levels of Program Evaluation  [PDF]
James Carifio
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.326145
Abstract: There has been strong pressure from just about every quarter in the last twenty years for higher education institutions to evaluate and improve their programs. This pressure is being exerted by several different stake holder groups simultaneously, and also represents the growing cumulative impact of four somewhat contradictory but powerful evaluation and improvement movements, models and advocacy groups. Consequently, the program assessment, evaluation and improvement cycle today is much different and far more complex than it was fifty years ago, or even two decades ago, and it is actually a highly diversified and confusing landscape from both the practitioner’s and consumer’s view of such evaluative and improvement information relative to seemingly different and competing advocacies, standards, foci, findings and asserted claims. Therefore, the purpose of this article is to present and begin to elucidate a relatively simple general taxonomy that helps practitioners, consumers, and professionals to make better sense of competing evaluation and improvement models, methodologies and results today, which should help to improve communication and understanding and to have a broad, simple and useful framework or schema to help guide their more detailed learning.
An antibody present in everybody that attacks malaria infected erythrocytes  [PDF]
James Kennedy
Journal of Biomedical Science and Engineering (JBiSE) , 2013, DOI: 10.4236/jbise.2013.67A1001
Abstract: These malaria targeting antibodies are band 3 antibodies and they recognize a special configuration of a molecule called band 3 that is present on erythrocytes. The special band 3 configuration is present on the surface of senescent erythrocytes, malaria infected erythrocytes, the erythrocytes of certain hemoglobinnopathies such as sickle cell disease and on the erythrocytes of some metabolic disorders such as G6PD. Note that these hemoglobinopathies and metabolic disorders all aid in the survival of falciparum malaria to such an extent that their incidence is increased in falciparum endemic areas [1-3]. Though there are many adhesive molecules involved in the pathology of falciparum malaria and sickle cell anemia, the focus here is on the band 3 molecules.
The level of patients’ satisfaction and perception on quality of nursing services in the Renal unit, Kenyatta National Hospital Nairobi, Kenya  [PDF]
James Ndambuki
Open Journal of Nursing (OJN) , 2013, DOI: 10.4236/ojn.2013.32025
Abstract:

Introduction: Renal failure is on the increase and patients have to identify with renal services and centres where services for renal replacement therapies are rendered. This calls for health care workers to offer services that are perceived as quality and satisfying in order to meet the biophysical and psychological needs of the patients. Study design: This was a descriptive cross-sectional study undertaken at the Renal unit of Kenyatta National Hospital (KNH). Purpose: The study aimed at determining the level of satisfaction and perception of the quality of nursing services in the Renal unit. Methodology: The study population included all patients who were seeking dialysis services during one month period of data collection. The sample size was 151 following data collection. Data collection tools consisted of semi-structured questionnaires which were administered with the aid of research assistants as well as checklists which were self administered. Data analysis and results: Analysis of data was performed using the statistical package of social sciences (SPSS) version 16. Results of data analysis were presented in form of descriptive statistics which included mean, standard deviation and percentages. Regression analysis, t-test and ANOVA were conducted to determine demographic predictors of patient satisfaction with the nursing services. The results of the study revealed that patients in the Renal unit were generally satisfied with the nursing services. The aggregate mean score for all patients on Likert scale was 71.2 out of 105, with a standard deviation of 16.8. Level of satisfaction was 67.8%. The findings also showed that there was no association between demographic characteristics with the levels of satisfaction with the nursing services. Recommendation: The hospital should keep the patients’ level of satisfaction high and maintain it through the provision of more dialysis machines and hiring more nurses.

Obesity and the Demand for Canadian Physician Services  [PDF]
James McIntosh
Health (Health) , 2014, DOI: 10.4236/health.2014.619301
Abstract: The objective of this study is to determine the role that obesity plays in how often Canadians visit their family doctors or general practitioners. Doctor visits are analyzed using mixtures of ordered probability models applied to sample survey data from the 2010 Canadian Community Health Survey. This procedure is shown to be superior in terms of likelihood criteria to the more usual one involving count models of doctor visits. The main result is that obesity is one of the leading causes of doctor visits. Obesity has become more important in the demand for physician services than smoking for all Canadians. Other factors including diabetes, the individual’s level of education, position in the income distribution, and drinking behavior are also important. The application of latent class’s ordered probability models by age-group and gender leads to results which are different from what others have found. While obesity is shown to be a serious problem in Canada, it has not yet reached the stage which some researchers have described as critical.
Alcohol and Type 2 Diabetes: Results from Canadian Cross-Sectional Data  [PDF]
James McIntosh
Journal of Diabetes Mellitus (JDM) , 2014, DOI: 10.4236/jdm.2014.44044
Abstract: Cross-section data from Canadian Community Health Surveys are used to examine the relationship between moderate alcohol use and type 2 diabetes. Results from these data are compared with those which have been obtained from prospective longitudinal studies. The major result is that both types of data yield similar conclusions with respect to this relationship. The reason why this occurs is because Canadian drinking behavior is quite stable once a respondent has become an adult and remains relatively stable thereafter. The only difference between the two types of survey is the time at which information on drinking behavior is obtained. Since this does not matter if drinking behavior is stable over large age ranges results from the two types of survey will be similar. Neither type of data can be used to support the proposition that the relationship between drinking behavior and the risk of diabetes is causal. Some advantages that sample survey data have over longitudinal data are also noted.
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