oalib

Publish in OALib Journal

ISSN: 2333-9721

APC: Only $99

Submit

Any time

2020 ( 18 )

2019 ( 62 )

2018 ( 103 )

2017 ( 93 )

Custom range...

Search Results: 1 - 10 of 72579 matches for " Carlos Fernando; "
All listed articles are free for downloading (OA Articles)
Page 1 /72579
Display every page Item
Lift Truck Load Stress in Concrete Floors  [PDF]
Vinicius Fernando Arcaro, Luiz Carlos de Almeida
Open Journal of Civil Engineering (OJCE) , 2017, DOI: 10.4236/ojce.2017.72015
Abstract: This text presents an analytical expression to calculate the maximum tension, at the bottom side of a concrete slab on ground, due to lift truck wheel loads. The result of the analytical expression is in close agreement with the result of a design chart by the Portland Cement Association and with the result of a finite element analysis. The analytical expression is able to show the relationships among the design variables and it can be used for the thickness design of concrete floors for factories and warehouses. The expression applies only to unreinforced concrete slabs on ground.
Practical Aspects of the Design and Construction of a Small Cable Roof Structure  [PDF]
Vinicius Fernando Arcaro, Luiz Carlos de Almeida
Open Journal of Civil Engineering (OJCE) , 2017, DOI: 10.4236/ojce.2017.73031
Abstract: Cable roof structures?have?only become widespread in large span structures in the latter part of the twentieth century. However,?they?still represent a relatively new form of roof construction, especially as in the present case of a small span innovative structural solution. The contribution of this text to the structural engineering community lies in the increased interest in building simple cable roof structures. Since its completion in September 1996, this small cable roof structure has been recognized as an interesting architectural and structural example. The text describes aspects of the design and construction of a small cable roof that was designed as a roof for an open-air theater stage for the city of Sao Jose do Rio Pardo, Sao Paulo, Brazil. A cable network, in the shape of a hyperbolic paraboloid surface, is anchored in a reinforced concrete edge ring. The projection of the ring’s axis onto the ground plane is an ellipse. Workers with specialized training were employed in the various stages of the construction, which was completed in September 1996.
FIJACIóN DE PRECIOS Costo Plus (Costo más margen) y Target Costing (Costeo Objetivo)
CUEVAS VILLEGAS,CARLOS FERNANDO;
Estudios Gerenciales , 2002,
Abstract: the three basic factors to keep in mind when determining the price of goods or services are clients, costs and competition. the firm′s accounting department provides the data for the two methods of price determination now in general use. cost-plus accounting makes use of a general formula that adds a profit margin or markup to the basic cost as a point of departure for subsequent price determination. many different costs (whether costs of production or overall costs) can be used as the basic cost to which the cost-plus-margin formula is applied. the price is subsequently modified in accordance with the response of clients and competitors. at the present time, the most widely used price-determining mechanism is target cost. one first determines the unit price that clients are willing to pay for a given good or service. then a target operating profit is subtracted from the unit price in order to determine the target cost. the firm then faces the challenge of meeting this target cost through ongoing improvements and value engineering.
MEDICIóN DEL DESEMPE?O: RETORNO SOBRE INVERSIóN, ROI; INGRESO RESIDUAL, IR; VALOR ECONóMICO AGREGADO, EVA; ANáLISIS COMPARADO
CUEVAS VILLEGAS,CARLOS FERNANDO;
Estudios Gerenciales , 2001,
Abstract: el artículo quiere a partir de un recuento crítico de los análisis tradicionales del roi y del ir dar una mirada analítica a estos indicadores comparándolos entre sí, mirando su alcance e importancia reales, igualmente sus problemas conceptuales y limitaciones. al final se introduce el eva, como medida y filosofía, mirando lo novedoso de la misma y los aspectos comunes con el roi y el ir.
EXPONENTIAL DECAY OF A CHARGE TRANSFER INDUCED BY COORDINATION IN ORGANOMETALLIC COMPLEXES
DIAZ,CARLOS; MENDIZABAL,FERNANDO;
Boletín de la Sociedad Chilena de Química , 2001, DOI: 10.4067/S0366-16442001000300009
Abstract: in the series of organometallic complexes n3p2(x)5p-spacer-mln x= cl and or, mln= organometallic fragment , the d31 p-nmr coordination chemical shift parameter correlates with the length of the spacer, decaying exponentially with the length of it. the bridging spacers behave like a "molecular wire" showing dependence of the charge transfer with the distance, similar to electron transfer in donor-acceptor systems. extended hückel molecular orbital calculations on the model series n3p2(x)2 p-spacer-mln x=cl- and oh- molecules shows that the changes of the mulliken charges on the phosphorus and metal atoms upon coordination exhibits also an exponential dependence with the length of the spacer
REVISIóN ANATóMICA DEL NEOPALIO DEL PERRO
Pellegrino,Fernando Carlos;
Revista chilena de anatomía , 2000, DOI: 10.4067/S0716-98682000000100005
Abstract: the scientists have avoided the dog in experimental neurology, although they have usually used it in experimental physiology. it is partly because of the variability in the size and shape of the head, but largely because spade work for researches had been carried out in other species, in which the anatomy of the brain is better known. drs. lim, liu and mofflit have demonstrated that variability in heads need not to be an obstacle. they applied the stereotaxic technique of horsley and clarke to the dog. at present, the possibilities of doing research in dogs are most attractive. despite this, the amount and quality of the information about the brain of the dogs that has been obtained by the neurophysiology and neurology has not been paired by the neuroanatomy. in consequence, the knowledge is dissociated, including the nomenclature and terminology. this work intends, with an anatomic criterion, to combine the macroscopic and microscopic descriptions, as well the functional findings, so that the neuroanatomy would be the basis of the pyramid of the knowledge of the applied neurosciences
EVIDENCIAS ANATóMICAS DEL áREA DE COBERTURA DE ELECTRODOS ESPECIALES TEMPORALES EN ELECTROENCEFALOGRAFíA CANINA
Pellegrino,Fernando Carlos;
Revista chilena de anatomía , 2000, DOI: 10.4067/S0716-98682000000200012
Abstract: with the aim to obtaine a reference pattern of the electrical activity of the normal canine brain, to be used as a parameter in the eeg in veterinary medicine, we developed an eeg recording technique. we worked with 12 recording electrodes, by inclusion of the temporal special electrodes and frontopolar electrodes, to improve the detection and location of the brain diseases, increasing the brain coberture to the rinencephalon and the prorean gyrus of the brain. the restriction of the animals was made with xylazine, 1 mg/kg. we studied animals with neurological signs (epileptic seizures or metabolic seizures), to evaluate the reliability of the special temporal electrodes. the clinical cases show the reliability of the special temporal electrodes to the detection of paroxistic events and focal alterations. espect to the anatomical coverage, the special temporal electrodes had been shown acces to the abnormal electrical activity proceed from the different areas of the rinencephalon, such the ammon cornus, piriform lobe and the olfactory bulb.
Indicaciones básicas para la realización de ecocardiografía-Doppler-color
Manzur,Fernando; Olivo,Carlos;
Revista Colombiana de Cardiología , 2005,
Abstract: introduction: clinical practice based on evidence takes off emphasis in intuition; clinical experience and rational physiopathology give sufficient bases for the clinical decision assessment and emphasizes the evidence?s examination for the clinical investigation. the comprehension of certain evidence rules is necessary for the correct interpretation of literature in respect to the causes, diagnostic tools and treatment strategies. the main aim of this research is to make a protocol for the indications of an echocardiogram in the clinical practice and to educate our country?s general physicians in this conduct. the good practice is due to initiatives, activities and functional models that are in progress worldwide, as confirmed by evidence. objective: echocardiography is actually the gold standard for the study of heart anatomy and physiology. since its introduction in the clinical practice more than three decades ago, it has had such diffusion that it is considered an important tool in the cardiology assistance. it provides trustworthy functional anatomic information, as well as diagnosis and is decisive in the treatment and resolution of cardiovascular diseases. the progressive development of this technique has enabled its use in all the different fields that may affect the cardiovascular system. the objective is to help the clinical physicians in the making of decisions in concrete situations, guaranteeing them that the diagnosis is based on results given by valid scientific studies. in accordance to this, different studies as well as task force and management guides representative of the worldwide literature, were compiled.
Canakinumab: un anticuerpo monoclonal prometedor en el tratamiento de enfermedades cardiovasculares Canakinumab: a promising monoclonal antibody in the treatment of cardiovascular diseases
Fernando Manzur,Carlos Moneriz
Revista Colombiana de Cardiología , 2013,
Abstract: El canakinumab es un anticuerpo monoclonal anti-IL-1β totalmente humano desarrollado por Novartis, cuyo mecanismo de acción se basa en la neutralización de la se alización IL-1β, lo cual conduce a la supresión de la inflamación en pacientes con trastornos de origen autoinmune. La IL-1β actúa como un mediador de la respuesta inmune periférica durante la infección y la inflamación. Mediante la unión antígeno-anticuerpo el canakinumab inhibe la acción de la IL1-β evitando sus efectos pro-inflamatorios. En la actualidad, está en evaluación como un nuevo posible agente dirigido frente a la IL-1β, con el objetivo de reducir la tasa de eventos cardiovasculares y la diabetes de aparición reciente (estudio CANTOS). Canakinumab is a totally human monoclonal antibody anti-IL-1β developed by Novartis, whose mode of action is based on the neutralization of IL-1β signaling, which leads to suppression of inflammation in patients with autoimmune disorders. The IL-1β acts as a mediator of the peripheral immune response during infection and inflammation. By the antigen-antibody binding, canakinumab inhibits the action of IL1-β avoiding its pro-inflammatory effects. Currently, it is being evaluated as a new possible agent directed against IL-1β, with the goal of reducing the rate of cardiovascular events and new onset diabetes (study CANTOS).
Indicaciones básicas para la realización de ecocardiografía-Doppler-color Basic indications for the performance of color Doppler echocardiography
Fernando Manzur,Carlos Olivo
Revista Colombiana de Cardiología , 2005,
Abstract: Introducción: la práctica clínica basada en la evidencia desenfatiza la intuición; la experiencia clínica y la fisiopatología racional constituyen una base suficiente para la toma de decisiones clínicas y hacen énfasis en el examen de evidencias para la investigación clínica. La comprensión de ciertas reglas de evidencia, es necesaria para la correcta interpretación de la literatura sobre causas, pruebas diagnósticas, y estrategias de tratamiento. El objetivo primordial de esta búsqueda es hacer un protocolo para las indicaciones de un ecocardiograma en la práctica médica, y la educación de ésta en la conducta de los médicos generales en Colombia. Las buenas prácticas son ejemplos de iniciativas, actividades o modelos de funcionamiento que están en marcha en todo el mundo como lo corrobora la evidencia. Objetivo: la ecocardiografía es, en la actualidad, el método de diagnóstico de elección para el estudio de la anatomía y la función cardiaca. Desde su introducción en la práctica clínica hospitalaria hace más de tres décadas, la difusión de esta técnica ha sido tal, que hoy se considera como una herramienta importante en la cardiología asistencial porque proporciona información anatomofuncional fidedigna y diagnósticos, y decide el tratamiento para la resolución de la enfermedad cardiovascular. Su progresivo desarrollo ha permitido extender su uso en todos los campos que afectan las enfermedades cardiovasculares. El objetivo siempre busca ayudar a los clínicos a tomar decisiones en situaciones concretas, garantizándoles que se tome la mejor en cada caso y la que más se fundamente en las pruebas aportadas por los estudios científicos más válidos. Con base en lo anterior, se recopilaron diferentes estudios, task force y guías de manejos representativos de la literatura mundial. Introduction: clinical practice based on evidence takes off emphasis in intuition; clinical experience and rational physiopathology give sufficient bases for the clinical decision assessment and emphasizes the evidence’s examination for the clinical investigation. The comprehension of certain evidence rules is necessary for the correct interpretation of literature in respect to the causes, diagnostic tools and treatment strategies. The main aim of this research is to make a protocol for the indications of an echocardiogram in the clinical practice and to educate our country’s general physicians in this conduct. The good practice is due to initiatives, activities and functional models that are in progress worldwide, as confirmed by evidence. Objective: echocardiography is actually th
Page 1 /72579
Display every page Item


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