oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

4 ( 1 )

2019 ( 77 )

2018 ( 166 )

2017 ( 148 )

Custom range...

Search Results: 1 - 10 of 86923 matches for " Eduardo Silva; Alves "
All listed articles are free for downloading (OA Articles)
Page 1 /86923
Display every page Item
Os modelos de plano de negócios e sua relevancia para sustentabilidade das micro e pequenas empresas
Emanoel Alves dos Santos,Carlos Eduardo Silva
Revista Brasileira de Administra??o Científica , 2012, DOI: 10.6008/ess2179-684x.2012.001.0003
Abstract: A partir dos estudos realizados, percebeu-se que o empreendedorismo apresenta-se em fase de crescimento no Brasil, apesar da prematuridade, sua prática mostra-se cada vez mais frequente entre os brasileiros, surgindo como uma op o de carreira, frente às dificuldades socioecon micas que afligem o país e reduzem as oportunidades para aqueles que querem entrar no mercado de trabalho. No contexto dessas percep es, este estudo buscou identificar e descrever os modelos de planos de negócios, bem como a relevancia da elabora o e utiliza o desse plano como fator de sustentabilidade e de sucesso para as Micro e Pequenas Empresas. Através de pesquisa bibliográfica apresentou-se modelos de plano de negócios que efetivamente s o utilizados e discutidos na literatura, sua relevancia como ferramenta nas empresas, de modo singular, as Micro e Pequenas Empresas do Brasil. A organiza o das ideias abordou os Fundamentos do Empreendedorismo e as concep es sobre Micro e Pequenas Empresas, seus enquadramentos, desafios e relevancia ao desenvolvimento econ mico. Na análise de resultados foi possível discutir e concluir que o plano de negócios é de fato um guia que auxilia o empreendedor na gest o, sendo que existem diversos modelos, assim, definiu-se o modelo mais adequado a essas empresas, trazendo consigo um grau maior de completude, simplicidade e objetividade, numa linguagem conveniente ao empreendedor.
Pulsar Timing Sensitivities to Gravitational Waves from Relativistic Metric Theories of Gravity
Marcio Eduardo da Silva Alves,Massimo Tinto
Physics , 2011, DOI: 10.1103/PhysRevD.83.123529
Abstract: Pulsar timing experiments aimed at the detection of gravitational radiation have been performed for decades now. With the forthcoming construction of large arrays capable of tracking multiple millisecond pulsars, it is very likely we will be able to make the first detection of gravitational radiation in the nano-Hertz band, and test Einstein's theory of relativity by measuring the polarization components of the detected signals. Since a gravitational wave predicted by the most general relativistic metric theory of gravity accounts for {\it six} polarization modes (the usual two Einstein's tensor polarizations as well as two vector and two scalar wave components), we have estimated the single-antenna sensitivities to these six polarizations. We find pulsar timing experiments to be significantly more sensitive, over their entire observational frequency band ($\approx 10^{-9} - 10^{-6}$ Hz), to scalar-longitudinal and vector waves than to scalar-transverse and tensor waves. At $10^{-7}$ Hz and with pulsars at a distance of $1$ kpc, for instance, we estimate an average sensitivity to scalar-longitudinal waves that is more than two orders of magnitude better than the sensitivity to tensor waves. Our results imply that a direct detection of gravitational radiation by pulsar timing will result into a test of the theory of general relativity that is more stringent than that based on monitoring the decay of the orbital period of a binary system.
Circumstantial Indications Emitted by the Teacher during Discursive Activity  [PDF]
Carlos Eduardo Laburú, Osmar Henrique Moura da Silva, Marcelo Alves Barros, Andreia de Freitas Z?mpero
Creative Education (CE) , 2017, DOI: 10.4236/ce.2017.88095
Abstract:
This study makes use of a reading of Prieto’s semiotics with the aim of shedding light on semiotic elements that occur during the discursive process in the classroom. Taking as reference an overview of this author’s theories in the context of science education, the paper focuses on the semiotic element of circumstantial indications. Circumstantial indications are a collateral and not always explicit type of sign in the teacher’s communication that assist the meaning of messages conveyed by signals. Compared with indications, signals are signs transmitted explicitly and openly that constitute the main axis of the discourse. In the course of classroom communication, teachers emit circumstantial indications in parallel with the transmitted signals. The signals refine the understanding of the messages of the scientific concepts being taught in order to make them more meaningful. This study investigates one Physics teacher’s class in a lab in which an empirical activity is guided at various moments through discursive activity based on problem-solving methodology. The paper identifies and qualifies some types of circumstantial indications emitted by the teacher, contextualizing their role in the discursive process during teaching.
Project Based Learning Applied to Technical Drawing  [PDF]
Eduardo Ferro dos Santos, Bruna Caroline Marques Gon?alves, Karine Borges de Oliveira, Messias Borges Silva
Creative Education (CE) , 2018, DOI: 10.4236/ce.2018.93034
Abstract: New technological advances have been challenging professionals in education area to reach the new generation of students. Since this new generation is surrounded by this new technology, it is mandatory to associate new practices and teaching methods to their education plan. In this way, educators must reflect not only on their usual pedagogical practices but also in the efficacy of the method that has been practiced in the teaching and learning process. Technical Drawing is a discipline that takes place in High School programs in addition to Technical and Higher Education. It is directly influenced by this technological advance, once the student goes from the draw in the paper to the draw in computers during the classes and is encouraged to execute the projects that arise from the step-by-step draw. In this context, this work aimed to show a study performed during the Technical Drawing discipline to report a new structure in the educational methodology related to project-based learning. The focus of this study was to encourage students to develop a greater interest in engineering using project based learning and use this as a method for learning.
Logística reversa numa empresa de lamina??o de vidros: um estudo de caso
Gon?alves, Marcus Eduardo;Marins, Fernando Augusto Silva;
Gest?o & Produ??o , 2006, DOI: 10.1590/S0104-530X2006000300004
Abstract: this paper introduces a reverse logistics application in a multinational plastic film industry in brazil, where the waste generated by its customers can reload the production process. firstly, the main features concerning the theme and the factors that influence an efficient process of reverse logistics are discussed. afterwards, using a case study, the steps focusing on the implementation of reverse logistics, which were successful in a company, are introduced and discussed. finally, the difficulties, gains and competitive advantages obtained by the companies that have adopted reverse logistic solutions, particularly the company where the case study was developed, are commented upon.
Forma??o em ciências da saúde: diálogos em saúde coletiva e a educa??o para a cidadania
Guimar?es,Denise Alves; Silva,Eduardo Sergio da;
Ciência & Saúde Coletiva , 2010, DOI: 10.1590/S1413-81232010000500029
Abstract: in the last decades there have been discussions concerning the educational process of health professionals in brazil. the discussed subjects are based on the verification of precarious aspects concerning a kind of formation that should be focused on attending the demands of the population, on the principles of sus and an extended understanding of healthcare. we intended to think about alternatives in relation to the graduation in health sciences and in analyzing the way education in health is registered in the context of higher education.
Bacterial spot and early blight biocontrol by epiphytic bacteria in tomato plants
Lanna Filho, Roberto;Romeiro, Reginaldo da Silva;Alves, Eduardo;
Pesquisa Agropecuária Brasileira , 2010, DOI: 10.1590/S0100-204X2010001200007
Abstract: the objective of this work was to evaluate in vitro and in vivo biocontrol of bacterial spot (xanthomonas vesicatoria) and early blight (alternaria solani) by the epiphytic bacteria paenibacillus macerans and bacillus pumilus. tomato plants were previously sprayed with epiphytic bacteria, benzalkonium chloride and pbs buffer and, after four days, they were inoculated with a. solani and x. vesicatoria. to determine the phytopathogenic bacteria population, leaflet samples were collected from each treatment every 24 hours, for seven days, and plated on semi-selective medium. the effect of epiphytic bacteria over phytopathogens was performed by the antibiosis test and antagonistic activity measured by inhibition zone diameter. the epiphytic and benzalkonium chloride drastically reduced the severity of early blight and bacterial spot in comparison to the control (pbs). in detached leaflets, the epiphytic bacteria reduced in 70% the number of phytopathogenic bacteria cells in the phylloplane. the antibiosis test showed that the epiphytic bacteria efficiently inhibit the phytopathogens growth. in all the bioassays, the epiphytic bacteria protect tomato plants against the phytopathogens
Unlike the synchronous Plasmodium falciparum and P. chabaudi infection, the P. berghei and P. yoelii asynchronous infections are not affected by melatonin
Piero Bagnaresi,Eduardo Alves,Henrique Borges da Silva,Sabrina Epiphanio
International Journal of General Medicine , 2009,
Abstract: Piero Bagnaresi1, Eduardo Alves1, Henrique Borges da Silva1, Sabrina Epiphanio2, Maria M Mota2, Célia RS Garcia11Departamento de Fisiologia, Instituto de Biociências, Universidade de S o Paulo, S o Paulo, Brazil; 2Unidade de Malária, Instituto de Medicina Molecular, Universidade de Lisboa, Lisboa, PortugalAbstract: We have previously reported that Plasmodium chabaudi and P. falciparum sense the hormone melatonin and this could be responsible for the synchrony of malaria infection. In P. chabaudi and P. falciparum, melatonin induces calcium release from internal stores, and this response is abolished by U73122, a phospholipase C inhibitor, and luzindole, a melatoninreceptor competitive antagonist. Here we show that, in vitro, melatonin is not able to modulate cell cycle, nor to elicit an elevation in intracellular calcium concentration of the intraerythrocytic forms of P. berghei or P. yoelii, two rodent parasites that show an asynchrononous development in vivo. Interestingly, melatonin and its receptor do not seem to play a role during hepatic infection by P. berghei sporozoites either. These data strengthen the hypothesis that hostderived melatonin does not synchronize malaria infection caused by P. berghei and P. yoelii. Moreover, these data explain why infections by these parasites are asynchronous, contrary to what is observed in P. falciparum and P. chabaudi infections.Keywords: malaria, calcium, melatonin, cell cycle, rhythm, sporozoite
The PORTAL OF SOCIAL CONTROL IN HEALTH: academic strategy for strengthening the public health system.
Eduardo Xavier da Silva,Wallyson Arraes,Elioenai Dornelles Alves
Revista Gest?o & Saúde , 2010,
Abstract: This portal UNB had the institutional support through DEX and the CPD of UNB creating a website specifi c for hosting applications and certifi cations. referrals this portal, we have the following results:the possibility of disclosing the Journal Management & Health and referrals of local health councils, such as events, debates, legislation and forums. Currently, The portal is hosted by thesite of the Center for Research on Education and Health Promotion - NESPROM of UNB. Continuing this portal was the embryo for creating training courses counselors and multipliers theme social control on health, depending on support for updating and continuity information.
LISA Sensitivities to Gravitational Waves from Relativistic Metric Theories of Gravity
Massimo Tinto,Márcio Eduardo da Silva Alves
Physics , 2010, DOI: 10.1103/PhysRevD.82.122003
Abstract: The direct observation of gravitational waves will provide a unique tool for probing the dynamical properties of highly compact astrophysical objects, mapping ultra-relativistic regions of space-time, and testing Einstein's general theory of relativity. LISA (Laser Interferometer Space Antenna), a joint NASA-ESA mission to be launched in the next decade, will perform these scientific tasks by detecting and studying low-frequency cosmic gravitational waves through their influence on the phases of six modulated laser beams exchanged between three remote spacecraft. By directly measuring the polarization components of the waves LISA will detect, we will be able to test Einstein's theory of relativity with good sensitivity. Since a gravitational wave signal predicted by the most general relativistic metric theory of gravity accounts for {\it six} polarization modes (the usual two Einstein's tensor polarizations as well as two vector and two scalar wave components), we have derived the LISA Time-Delay Interferometric responses and estimated their sensitivities to vector- and scalar-type waves. We find that (i) at frequencies larger than roughly the inverse of the one-way light time ($\approx 6 \times 10^{-2} $ Hz.) LISA is more than ten times sensitive to scalar-longitudinal and vector signals than to tensor and scalar-transverse waves, and (ii) in the low part of its frequency band is equally sensitive to tensor and vector waves and somewhat less sensitive to scalar signals.
Page 1 /86923
Display every page Item


Home
Copyright © 2008-2017 Open Access Library. All rights reserved.