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Search Results: 1 - 10 of 12160 matches for " Franklin Jr. "
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On the Unavoidability of the Interpretations of Quantum Mechanics
Roberto Beneduci,Franklin E. Schroeck Jr
Physics , 2012,
Abstract: Recently, the presence in the literature (also recent) of voluminous discussions about the interpretation of quantum mechanics has been labelled as scandalous. We claim that a weak point of the debate which hosted such a conclusion is a lack of a definition of the term "interpretation". In the present note, we would "like to make precise" that meaning and to show how such a clarification is necessary in order to avoid misunderstandings.
A note on the Relationship between Localization and Norm-1 Property
Roberto Beneduci,Franklin E. Schroeck Jr
Physics , 2012, DOI: 10.1088/1751-8113/46/30/305303
Abstract: The paper focuses on the problem of localization in quantum mechanics. It is well known that it is not possible to define a localization observable for the photon by means of projection valued measures. Conversely, that is possible by using positive operator valued measures. On the other hand, projection valued measures imply a kind of localization which is stronger than the one implied by positive operator valued measures. It has been claimed that the norm-1 property would in some sense reduce the gap between the two kind of localizations. We give a necessary condition for the norm-1 property and show that it is not satisfied by several important localization observables.
Meio de cultura semi-seletivo para detec??o de Curtobacterium flaccumfaciens pv. flaccumfaciens em solo e sementes de feijoeiro
Behlau, Franklin;Nunes, Liliane Moreira;Leite Jr., Rui Pereira;
Summa Phytopathologica , 2006, DOI: 10.1590/S0100-54052006000400017
Abstract: bacterial wilt, caused by curtobacterium flaccumfaciens pv. flaccumfaciens, is an important disease for bean (phaseolus vulgaris l.) production in southern brazil. the use of contamined seeds is the major way to spread the bacterium. although the occurrence of this disease in brazil is recent, the seedborne bacterium hase been disseminated to most of the bean producing areas. the objective of this study was to adjust the cns (corynebacterium nebraskense selective medium) to recover and detect the bacterium in infected soil as well as in bean seeds. suspensions obtained from washing infected soil and bean seeds contamined by the bacterium were plated onto modified cns medium. the modified cns was efficient to recover the bacterium from both contaminated soil and bean seeds. the cns established medium differed from the original by reducing the concentration of polymyxin b sulfate to 16 mg/l, excluding cyclohexamide and replacing daconil 2787-f fungicide (530 mg/ml chlorothalonil) with dacostar 500 (500 mg/ml chlorothalonil).
The political economy of women’s professional basketball in the United States: A structure-conduct-performance approach
Ariel ANTHONY,Steven B. CAUDILL,Franklin G. MIXON, Jr.
Theoretical and Applied Economics , 2012,
Abstract: This study examines the political economy of women’s professional basketball in the United States, including both the American Basketball League (ABL) and the Women’s National Basketball Association (WNBA). To do so, we employ the structure-conductperformance paradigm (hereafter SCP) from industrial organization. In addition to the importance of television revenues and corporate sponsorships to the success of the leagues, we find evidence of economies of scope, bilateral monopoly issues, and reverse causality in the SCP paradigm as applied to women’s professional basketball in the United States.
Cost-based access pricing in the brazilian telecommunications sector
Sérgio Luís Franklin Jr.,Madiagne Diallo
Brazilian Journal of Operations & Production Management , 2010,
Abstract: The opening of the fixed telephony, mobile and data communications markets to competition, in conjunction with the subsequent reduction and elimination of entry barriers have allowed new telecommunications operators to launch their operations and develop. While traditional telecommunications business models required large amounts of money to be raised up-front in order to finance huge investment in network infrastructure, new business models are based on new entrants obtaining access to incumbents’ “essential facilities” through interconnection and access agreements. In this paper, we analyze the costing methodologies adopted for pricing interconnection and access services in Brazil, and the regulatory challenges associated with setting cost-based access prices in telecommunications networks taking into account the technological uncertainty, demand uncertainty and the move to a full-service broadband (IP) network.
A estrutura a termo de taxas de juros no Brasil: modelos, estima??o e testes
Franklin Jr., Sergio L.;Duarte, Thiago B.;Neves, César R.;Melo, Eduardo F. L.;
Economia Aplicada , 2012, DOI: 10.1590/S1413-80502012000200003
Abstract: in this paper, we propose a methodology for the construction of the risk-free interest rate term structure in brazil, using the svensson model for interpolation and extrapolation of the interest rate curves, and genetic algorithms, in complement to traditional algorithms of nonlinear optimization, for estimation of model parameters. the objective is to contribute to the brazilian insurance market, so that insurance ces can appropriately measure their long-term obligations discounting cash flows in a manner that is consistent and coherent, considering the adoption of international standards of solvency supervision and financial reporting by the superintendência de seguros privados (susep). we present the results found in modeling the term structure of a number of interest rate curves in brazil.
Raffle Risk Valuation in With-Raffle Savings Account
Eduardo Fraga Lima de Melo,Sergio Luis Franklin Jr.,César da Rocha Neves
Revista Brasileira de Finan?as , 2012,
Abstract: In this paper we present an approach for the assessment of raffle risk found in with-raffle savings account, a type of product offered by with-raffle savings societies. This risk can be defined as the possibility of losses due to the commitment to pay prizes above the expected value. It concerns the selling of the product to few investors and the uncertainty in the value paid by them, which is positively related to the prize the savings society must pay. Our results provide a simple valuation formula for practioners involved in this specific industry.
Impact of Comorbidities on Racial/Ethnic Disparities in Hypertension in the United States
Franklin Opara,Kimberly Hawkins,Aparna Sundaram,Munira Merchant,Sandra Rasmussen,Laurens Holmes Jr.
ISRN Public Health , 2013, DOI: 10.1155/2013/967518
Abstract: Background. Racial/ethnic disparities in hypertension (HTN) prevalence continue to persist in United States. We aimed in this study to examine the racial/ethnic disparities in hypertension prevalence and to determine whether or not health disparities may be explained by racial/ethnic disparities in co-morbidities. Materials and Methods. A cross-sectional design was used to examine the prevalence of hypertension among African Americans (AAs), Caucasians, and Hispanics in the National Health Interview Survey, 2003. The overall sample comprised 30, 852 adults. Results. There was a statistically significant racial/ethnic variability in hypertension prevalence, with AA/Blacks with the highest prevalence, (3), . Hypertension was associated with co-morbidities, age, education, physical inactivity, marital status, income, sex, alcohol, and cigarette consumption, but not insurance. Relative to Caucasians, AAA/Blacks were 43% more likely while Hispanics were 40% less likely to report being diagnosed with high blood pressure, prevalence odds ratio (POR)??=??1.43, 99% CI, 1.25–1.64, , and POR??=??0.60, 99% CI, 0.55–0.66, respectively. After adjustment for the relevant covariates including co-morbidities, racial/ethnic disparities in hypertension persisted; thus compared to Caucasians, African Americans were 61% more likely to be told by their health care providers that they were hypertensive, adjusted prevalence odds ratio (APOR)??=??1.61, 99% CI, 1.39–1.86, . In contrast, Hispanics were 27% less likely to be diagnosed with hypertension compared to Caucasians, APOR??=??0.73, 99% CI, 0.68–0.79, . Conclusions. There was racial/ethnic variability in hypertension prevalence in this large sample of non-institutionalized US residents, with the highest prevalence of hypertension observed among African Americans. These disparities were not removed after controlling for relevant covariates including co-morbidities. 1. Introduction Hypertension remains one of the leading causes of cardiovascular disease mortality in the United States population, affecting disproportionately non-Hispanic Blacks [1]. The etiology of hypertension is multifactorial, and incidence, prevalence, and mortality vary by race/ethnicity [2]. Variability by race/ethnicity in hypertension prevalence had been shown by several studies [3–5]. These studies continue to identify the African American (Blacks) ethnicity with the highest prevalence [4] and the ethnic group in which hypertension-related death is highest [5, 6]. Whereas evidence continues to demonstrate these health disparities, these variabilities
Effects of Academic Stress and Perceived Social Support on the Psychological Wellbeing of Adolescents in Ghana  [PDF]
Franklin N. Glozah
Open Journal of Medical Psychology (OJMP) , 2013, DOI: 10.4236/ojmp.2013.24022
Abstract: The purpose of this study was to examine how academic stress and perceived social support influence the psychological wellbeing of Senior High School students in Ghana. Two hundred and twenty six male and female students participated. The general health questionnaire, student life-stress inventory and perceived social support from family and friends scales were used to assess psychological wellbeing, academic stress and perceived social support respectively. The results indicated that perceived social support buffered the effects of academic stress on psychological wellbeing. Girls reported higher scores on perceived social support but reported more depression. Boys reported higher academic stress and better psychological wellbeing, and these have been attributed partly to the socialisation role of gender. These results have policy implications in respect of the creation of a cordial school environment as well as encouraging a healthy interpersonal relationship between adolescents and their family and friends with the aim of reducing academic stress appraisal which is inimical to the psychological wellbeing of adolescents.
Heterotrophic and Autotrophic Soil Respiration under Simulated Dormancy Conditions  [PDF]
Daniel Beverly, Scott Franklin
Open Journal of Forestry (OJF) , 2015, DOI: 10.4236/ojf.2015.53024
Abstract: Carbon cycling research has increased over the past 20 years, but less is known about the primary contributors to soil respiration (i.e. heterotrophic and autotrophic) under dormant conditions. It is understood that soil CO2 effluxes are significantly lower during the winter of temperate ecosystems and assumed microorganisms dominate efflux origination. We hypothesized that heterotrophic contributions would be greater than autotrophic under simulated dormancy conditions. To test this hypothesis, we designed an experiment with the following treatments: combined autotrophic heterotrophic respiration, heterotrophic respiration, autotrophic respiration, no respiration, autotrophic respiration in vermiculite, and no respiration in vermiculite. Engelmann spruce seedlings and soil substrates were placed in specially designed respiration chambers and soil CO2 efflux measurements were taken four times over the course of a month. Soil microbial densities and root volumes were measured for each chamber after day thirty-three. Seedling presence resulted in significantly higher soil CO2 efflux rates for all soil substrates. Autotrophic respiration treatments were not representative of solely autotrophic soil CO2 efflux due to soil microbial contamination of autoclaved soil substrates; however, the mean autotrophic contributions averaged less than 25% of the total soil CO2 efflux. Soil microorganism communities were likely the primary contributor to soil CO2 efflux in simulated dormant conditions, as treatments with the greatest proportions of microbial densities had the highest soil CO2 efflux rates. Although this study is not directly comparable to field dormant season soil CO2 effluxes of Engelmann spruce forest, as snowpack is not maintained throughout this experiment, relationships, and metrics from such small-scale ecosystem component processes may yield more accurate carbon budget models.
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