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Search Results: 1 - 10 of 9484 matches for " Ruiz Rada "
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Octocorales de las aguas profundas del oriente de Venezuela
Ruiz,Luis; Rada,Martín;
Investigaciones marinas , 2006, DOI: 10.4067/S0717-71782006000200008
Abstract: deep-water octocoral fauna exceeding 40 m was analyzed off eastern venezuela. the material was collected by scuba diving or with a beam trawl-type drag. in total, 55 specimens were collected, identified, photographed, and preserved. these included 15 species belonging to 13 genera of the following families: ellisellidae, plexauridae, gorgoniidae, clavularidae, anthothelidae, nephtheidae, kophobelemnidae, and renillidae. three of the identified species are registered for the first time in venezuela: neospongodes portoricencis, clavularia sp. and thesea guadalupensis of the families nephtheidae, clavularidae, and plexauridae, respectively. t. guadalupensis was reported for the islands of guadalupe and carriacau, and n. portoricencis, a cosmopolitan species in deep waters, for barbados, puerto rico, and cuba. the importance of this information for the proper management and conservation of the fauna is discussed, as are its possible relationships with deeper fishing sites
Octocorales de las aguas profundas del oriente de Venezuela Deep-water octocorals off Eastern Venezuela
Luis Ruiz,Martín Rada
Investigaciones Marinas , 2006,
Abstract: Se analiza la fauna de octocorales de aguas profundas, mayores de 40 m, de la zona oriental de Venezuela. El material fue colectado mediante inmersiones con SCUBA o con una draga de arrastre tipo Beam Trawl. Se recolectaron 55 ejemplares que fueron identificados, fotografiados y preservados. Se identificaron 15 especies pertenecientes a 13 géneros de las familias: Ellisellidae, Plexauridae, Gorgoniidae, Clavularidae, Anthothelidae, Nephtheidae, Kophobelemnidae y Renillidae. De las especies identificadas tres son nuevos registros para Venezuela: Neospongodes portoricencis, Clavularia sp. y Thesea guadalupensis de las familias Nephtheidae, Clavularidae y Plexauridae respectivamente. T. guadalupensis había sido reportada en las islas de Guadalupe y Carriacau, mientras que N. portoricencis fue registrada en las islas Barbados, Puerto Rico y Cuba, siendo una especie cosmopolita en aguas profundas. Se discute la importancia del conocimiento de esta fauna para su debido manejo y conservación, así como su posible relación con lugares de pesca más profundos Deep-water octocoral fauna exceeding 40 m was analyzed off Eastern Venezuela. The material was collected by SCUBA diving or with a Beam Trawl-type drag. In total, 55 specimens were collected, identified, photographed, and preserved. These included 15 species belonging to 13 genera of the following families: Ellisellidae, Plexauridae, Gorgoniidae, Clavularidae, Anthothelidae, Nephtheidae, Kophobelemnidae, and Renillidae. Three of the identified species are registered for the first time in Venezuela: Neospongodes portoricencis, Clavularia sp. and Thesea guadalupensis of the families Nephtheidae, Clavularidae, and Plexauridae, respectively. T. guadalupensis was reported for the islands of Guadalupe and Carriacau, and N. portoricencis, a cosmopolitan species in deep waters, for Barbados, Puerto Rico, and Cuba. The importance of this information for the proper management and conservation of the fauna is discussed, as are its possible relationships with deeper fishing sites
Applying Information Technology to Financial Statement Analysis for Market Capitalization Prediction  [PDF]
Hayden Wimmer, Roy Rada
Open Journal of Accounting (OJAcct) , 2013, DOI: 10.4236/ojacct.2013.21001
Abstract: Determining which attributes may be employed for predicting the market capitalization of a business firm is a challenging task which may benefit from research intersecting principles of accounting and finance with information technology. In our approach, information technology in the form of decision trees and genetic algorithms is applied to fundamental financial statement data in order to support the decision making process for predicting the direction of the value of a company with value defined as the market capitalization. The decision process differs from year to year; however, the amount of variation is crucial to a successful decision making process. The research question posed is “how much variation occurs between years?” We hypothesize the amount of variation is smaller than half the number of financial statement attributes that may be employed in the decision making process. We develop a system which tests the amount of variation between years measured as the amount of generations required to reach a target level of fitness. The hypothesis is tested using data filtered from Compustat’s global database. The results support the research hypothesis and advance us toward answering the research question. The implications of this research are the possibility to improve the decision process when employing financial statement analysis as applied to the market capitalization and financial valuation of business firms.
Prototipo de sistema en lazo cerrado para administración de anestesia intravenosa
Ruiz Rada,Jorge Andrés; Fernández,Juan Manuel; Hernández Valdivieso,Alher Mauricio;
Revista Facultad de Ingeniería Universidad de Antioquia , 2009,
Abstract: this paper presents the development of a closed-loop system for intravenous administration. therefore, several sub-systems have been developed independently. a multi-compartment drug distribution model for the human body, an algorithm for determining the infusion rate of propofol to achieve the desired anesthesia effect, a communication protocol for sending the infusion rate array to a conventional infusion pump. finally, a feedback to control the whole system based on a bi-spectral index signal (bis) as an anesthetic deepness measure. the final result is a useful instrument, similar to commercially available systems, with a friendly interface that can be controlled by the anesthesiologist from a personal computer.
Los ideogramas como estrategia didáctica exitosa en la asignatura introducción a la filosofía
Rada,Dora;
Investigación y Postgrado , 2010,
Abstract: el trabajo se desarrolló en un ambiente de modalidad mixta en una sección del semestre i-2007 del centro de atención caracas-instituto de mejoramiento profesional del magisterio-upel. la estrategia ideográfica permitió reportar el aprendizaje de contenidos de la asignatura introducción a la filosofía. la instrucción presencial se dispuso en cinco sesiones. por correo electrónico, las 31 participantes reportaron sus lecturas a través del uso de ideogramas (mapas mentales o conceptuales, esquemas, redes). para el análisis se utilizó la diferenciación progresiva seleccionando y comparando las creaciones de 8 participantes (39%). finalmente se escogieron 2 con las calificaciones más altas y 2 con las más bajas. quienes elaboraron estrategias ideográficas con conectores relevantes construyeron aprendizajes significativos. posiblemente, los ideogramas se constituyeron en una estrategia didáctica exitosa para enriquecer los aprendizajes y propiciar el desplazamiento cognitivo de las participantes hacia reflexiones filosóficas básicas relacionadas con las escuelas donde laboraban.
Nonderogatory directed windmills
RADA,JUAN;
Revista Colombiana de Matemáticas , 2008,
Abstract: a directed graph g is nonderogatory if its adjacency matrix a is nonderogatory, i.e., the characteristic polynomial of a is equal to the minimal polynomial of a. given integers r≥ 2 and h≥ 3, a directed windmill mh(r) is a directed graph obtained by coalescing r dicycles of length h in one vertex. in this article we solve a conjecture proposed by gan and koo ([3]): mh(r) is nonderogatory if and only if r=2.
Nonderogatory directed windmills Molinos de viento dirigidos no derogatorios
JUAN RADA
Revista Colombiana de Matemáticas , 2008,
Abstract: A directed graph G is nonderogatory if its adjacency matrix A is nonderogatory, i.e., the characteristic polynomial of A is equal to the minimal polynomial of A. Given integers r≥ 2 and h≥ 3, a directed windmill Mh(r) is a directed graph obtained by coalescing r dicycles of length h in one vertex. In this article we solve a conjecture proposed by Gan and Koo ([3]): Mh(r) is nonderogatory if and only if r=2. Un grafo dirigido G es no-derogatorio si su matriz de adyacencia A es no-derogatoria, es decir el polinomio característico de A es igual al polinomio minimal de A. Dados enteros r≥ 2 y h≥ 3, el molino de viento dirigido Mh(r) es un grafo dirigido que se obtiene por medio de la coalescencia de r diciclos de longitud h en un vértice. En este artículo resolvemos una conjetura propuesta por Gan y Koo ([3]): Mh(r) es no-derogatorio si, y sólo si, r=2.
The politics of abortion and contraception
Drezgi? Rada
Sociologija , 2004, DOI: 10.2298/soc0402097d
Abstract: In this article the author challenges several dominant positions that are relevant for understanding demographic trends and contraceptive practices as well as their mutual relationship. First, the author rejects the assumed direct connection between high abortion rates and low fertility. Second, the author challenges the thesis according to which abortions come about because of the lack of contraception and proposes that high abortion rates result from failing contraception i.e. from high failing rates of coitus interruptus which is a preferred method of birth control by men and women in Serbia. Finally, the author argues that giving control over reproductive risk to men does not make women passive victims of male domination. Rather women are, it is argued, active agents in reproducing hegemonic gender roles and relations. In addition, the author shows how gender power relations formed at the micro level may be consequential for macro level politics.
Osobennosti narodnogo jazyka v gramotah knjaza Lazarja i despota Stefana: Iz serbskoj istori eskoj dialektologii
Stijovi? Rada
Ju?noslovenski Filolog , 2008, DOI: 10.2298/jfi0864457s
Abstract: (ruski) V dannoj rabote avtor issleduet nekotorye osobennosti serbskogo narodnogo jazyka v gramotah knjaza Lazarja i despota (titul srednevekovogo pravitelja) Stefana. Re ' idet o dokumentah, sohraniv ihsja v originale. Avtor pod erkivaet, to ast' upomjanutyh osobennostej sovpadaet s sootvetstvuju imi ertami sovremennogo kosovsko-resavskogo dialekta serbskogo jazyka. Dlja rjada ert sovpadenija ne obnaru eno. Tak, jazyk dannyh gramot ne podtver daet sleduju ee: a) vokalizaciju reducirovannyh, b) perehod -l(-) v -o(-), v) ispol'zovanie okon anija -em v tvoritel'nom pade e edinstvennogo isla su estvitel'nyh mu skogo i srednego roda (napr., bratem selem i t. p): v tom pade e pojavljajutsja formy s okon aniem -om (bratom selom i t. p). Rezul'taty dannyh issledovanij poslu at vkladom v istori eskuju dialektologiju serbskogo jazyka.
PARTICULARIT ILE CONTABILIT II N INSTITU IILE BUGETARE
Doina Rada
Studia Universitatis Vasile Goldis Arad, Seria Stiinte Economice , 2011,
Abstract: The budgetary expenditures have as precise destination and limited, being determined byauthorizations contained in specific laws and in the annual budgetary laws. No expenditurecan be budgeted, neither employed or effectuated, if there is no a legal base for thatexpenditure. An expenditure from a public fund can be employed, ordered and paid if it isapproved by the law and it has legal provisions.
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