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Search Results: 1 - 10 of 5203 matches for " Castillo "
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Influence of Rainfall Pattern in the Seasonal Variation of Fish Abundance in a Tropical Estuary with Restricted Marine Communication  [PDF]
Manuel Castillo-Rivera
Journal of Water Resource and Protection (JWARP) , 2013, DOI: 10.4236/jwarp.2013.53A032
Abstract:
Pueblo Viejo Lagoon is an estuary with restricted communication with the sea, so the freshwater influence tends to be more important. Therefore, the study focused on testing the hypothesis that the seasonal changes in species abundance would be mainly related to the local rainfall pattern. Monthly samplings were carried out over a one-year, using a seine net. A total of 9108 individuals were caught, corresponding to 66 species of fish, most of them with marine origin. Canonical correspondence analysis revealed that the rainfall-salinity gradient was revealed to be the most important driving force in the seasonal variation of fish composition. In this way, it was observed that seasonal fluctuations in total fish number were linked to preceding fluctuations (one month) in local rainfall. Similar pattern was exhibited by the abundance of Anchoa mitchilli (the most abundant species), Oreochromis mossambicus and Ariopsis felis, and this delayed effect was significant (cross-correlation analyses). In addition, the rainfall showed a direct influence (significant positive correlations) on abundance of D. auratus and M. martinica. The association between fish number and the rainfall regime seems to be related to lagoon productivity and the trophic responses of these species. By contrast, Brevoortia gunteri and Menidia beryllina showed an inverse correlation with rainfall. Other environmental variables (also influenced by rainfall regime) showed a significant relationship with A. hepsetus (salinity), B. chrysoura (depth) and M. curema (turbidity). Thus, at least 12 species showed some relationship with local rainfall, which accounted for 81.27% of the total number of fish collected. Although it is difficult to separate the relative importance of
Mobile and Nonmobile Assessment in Organizations: Does Proctoring Make a Difference?  [PDF]
Matthew S. Castillo, Raymond Doe
Psychology (PSYCH) , 2017, DOI: 10.4236/psych.2017.86057
Abstract: Advancements in technology have allowed for more efficient methods of testing and assessment. In particular, remotely delivered assessments can be taken on mobile or nonmobile devices in addition to traditional pencil and paper tests. This has led to an increased interest in the comparability of mobile and nonmobile devices on performance outcomes. A variable to consider in performance outcomes on a mobile or nonmobile device is proctoring. There is evidence for both proctored and unproctored conditions leading to better performance outcomes. The present study compared performance on a remotely delivered assessment across mobile and nonmobile devices in proctored and unproctored conditions. Participants were randomly assigned to take a remotely delivered cognitive ability test on either a mobile or nonmobile device in a proctored or unproctored condition. Results indicated that participants tended to perform similarly regardless of the device type or proctoring. Implications are that organizations should consider testing job applicants via mobile devices because performance on a high stakes assessment tends to be similar to testing on a traditional desktop or laptop. Further validation of these results could allow companies to reduce hiring costs by remotely delivering assessments to applicants’ own devices.
Casa Gallinero: Concepción, Chile
Castillo,Eduardo;
ARQ (Santiago) , 2011, DOI: 10.4067/S0717-69962011000100007
Abstract: casa gallinero is part of a series of projects aiming to high constructive efficiency -reached mostly through the use of systematic components- resulting in the biggest space possible at minimum costs. designed basically using a single material, this proposal is a critical recover of traditional carpentry as a light, manual, affordable technology.
Casa 3 casta?os: Talca, Chile
Castillo,Eduardo;
ARQ (Santiago) , 2011, DOI: 10.4067/S0717-69962011000100008
Abstract: autoprogettazione is the name given to 19 pieces of furniture that were designed by enzo mari in 1974 using only wood strips. following the diy fashion, the author published complete drawings to stimulate its reproduction, taking distance from copyrights and industrial production but praising anonymous, hand-made production. just like in this house, common procedures not necessarily generate common results.
YAP_CONSTRUCTO 2010, SANTIAGO: Arquitecto Eduardo Castillo, 2010
Castillo,Eduardo;
ARQ (Santiago) , 2011, DOI: 10.4067/S0717-69962011000200005
Abstract: this is a program created by moma-ps1 in 2000 in new york. in its first south american version, the initiative aims to promote young talent through construction: during summer, the installation hosts music performances and open-air activities. this time it was a formless, hanging tent and its shadowy interior.
Eduardo Castillo
Castillo,Eduardo;
ARQ (Santiago) , 2002, DOI: 10.4067/S0717-69962002005100012
Abstract: chile?s rural periphery, precarious though it seems, is the working material for these constructions, both built and at design stage. the opposite of a gentrifying process, these buildings draw on and consolidate ways and forms from their own tradition, making use of the same resources and techniques that have built up the landscape of the chilean countryside over the years. it is an architecture of wood, nails, cloth and metal sheets, put up by workmen -like most of what gets built in chile
Transporte e logística de granéis sólidos agrícolas: componentes estruturais do novo sistema de movimientos do território brasileiro
Castillo, Ricardo;
Investigaciones geográficas , 2004,
Abstract: the newest modern agriculture nsssidtibadstateinfospeller in brazilian territory (middle west and northern regions) have caused deep changes in transport modalities (railway, roadway and waterway) and telecommunication networks. places and regions loose their relative self-government and become submitted to the global agents. production, credit, supplying and consumption are regulated from outside, distorting localand regional public policies. thus results in a new territory organization and a more corporate use of transport and telecommunication systems. the territory breaks up and obstruct a national project. we propose to analyze the soybean logistics, aiming to develop na essay on corporate mobility systems as a mean to reach social justice in brazilian planning.
EL RECONOCIMIENTO: UNA NUEVA PASIóN DEMOCRáTICA
Castillo,Monique;
Estudios de Filosofía , 2007,
Abstract: the expectancy for a cultural democracy that is able to face the intercultural challenge of the coexistence of cultures, the mediatization of knowledges and the migrations in the frame of globalization, is a factor of hope for a new moralization of democracy. nonetheless, we are still in the beginnings of the history of recognition, at the stage where we ask still the following question: do the representations of recognition that are imposing themselves contribute to make democracies more fragile or do they rather contribute to strengthen democracies? my reflection will proceed to criticize the relativistic perspective and, then, that of the victimary perspective of recognition, to emphasize the pure moral force of the imperative of inter-subjectivity, safe from any ideological recuperation. thus the condition of cultural possibility of a relational universalism will be opened: in the beginning was relation.
Ars disyecta
Castillo,Alejandra;
Aisthesis , 2012, DOI: 10.4067/S0718-71812012000100001
Abstract: this article aims to present the relation between visual arts, feminism i and metamorphosis. the feminist artistic practices portrayed in this article attempt to question categories inherited from the metaphor of sexual difference such as engendering, matrix and life. from this perspective, ars disyecta will establish a set of artistic practices and interventions that intend to interrupt the proper idea of ?feminine difference?. following this line of argument, i will discuss in this article a few contemporary feminist works of art that could be defined by words such as contagious, mutation and otherness.
Firm and Corporate Bond Valuation: A Simulation Dynamic Programming Approach
Castillo,Augusto;
Cuadernos de economía , 2004, DOI: 10.4067/S0717-68212004012400002
Abstract: this paper analyzes corporate bond valuation of a straight bond, and the convertibility feature, when interest rates are stochastic and the firm value is determined by the interaction of a series of stochastic variables. the sensitivity of the corporate debt value to some key parameters is also explored. the methodology applied here is based on a hybrid of simulation and dynamic programming proposed by raymar and zwecher in 1997 to value financial american-type options. this methodology proves to be extremely efficient to value american-type options when the sources of uncertainty are numerous
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