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Aproximadamente 4479 registro(s) hasta el momento: (journal)

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Recurso libre

Effect of Praziquantel on swine cysticercosis
Flisser, A - González, D - Aluja, A - Plancarte, A - Correa, D - Ostrosky, P - Montero R - Rodríguez del Rosal , E

Formato:	Article
Enlaces:	Descripción completa.
Fecha:	2011-12-07
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

Market entry methods for western firms in China
Wilson, Jonathan S. - Brennan, Ross

Formato:	Article
Enlaces:	The UK continues to be one of Europe’s leading investors in China. Many companies have chosen the international joint venture (IJV) option as their market entry method. However, in 2000, the growth of wholly foreign owned enterprises (WFOEs) exceeded that…
Fecha:	2011-06-20
Recurso:	Anglia Ruskin University

Recurso libre

From fragmentation to ontologically reflexive pluralism
Bigo, Vinca - Negru, Ioana

Formato:	Article
Enlaces:	Considerable attention has recently been directed towards the analysis of pluralism in social science, not least in economics. Plurality is often taken as a mark of pluralism. But it is not the same thing, and often indicates little more than…
Fecha:	2011-08-18
Recurso:	Anglia Ruskin University

Recurso libre

Test-Retest reliability of Biodex Balance SD on physically active old people
Parraca, Jose Alberto - Olivares Sánchez-Toledo, Pedro Rufino - Carbonell Baeza, Ana - Aparicio García-Molina, Virginia A. - Adsuar Sala, José Carmelo - Gusi Fuertes, Narcís

Formato:	info:eu-repo/semantics/article
Enlaces:	The purpose of this study was to determine the reliability of the Biodex Balance System in elderly. Forty-five subjects aged 66±5.5 years old and weight 71.6±9.8 kg were tested on the Biodex Balance System. In order to calculate the reliability,…
Fecha:	2011-06-30
Recurso:	RUA Docencia

Recurso libre

Short report: Evaluation of a self-detection tool for tapeworm carriers for use in public health
Flisser, A. - Vazquez-Mendoza, A. - Martinez-Ocana, J. - Gomez-Colin, E. - Leyva, RS. - Medina-Santillan, R.

Formato:	Article
Enlaces:	The current study was designed to evaluate a tool for the self-identification of tapeworm carriers. Clinical and animal health care practitioners and schoolteachers were trained regarding the life cycle, risk factors, and control measures related to infection with Taenia solium.…
Fecha:	2011-12-07
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

Learning to dialogue: towards a critical pedagogy for public finance and accounting management practice
Armitage, Andrew M.D.

Formato:	Article
Enlaces:	Critical accounting sees the world as socially constructed and intrinsically linked to organisational, social and political contexts. Whereas mainstream accounting historians study accounting history in terms of the progressive development of modern techniques and practices, a Foucauldian analysis challenges the
Fecha:	2012-11-22
Recurso:	Anglia Ruskin University

Recurso libre

Demography of two populations of the Mexican mud turtle (Kinosternon integrum) in Central Mexico
Macip-Ríos, R - Brauer-Robleda, P - Zúñiga-Veja, José Jaime - Casas-Andreu, G

Formato:	Article
Enlaces:	Basic demographic information for turtles in tropical and sub-tropical regions is still scarce. As a consequence, prospective management and conservation plans for these long-lived vertebrates lack the necessary quantitative background for successful implementation. In this study, we used capture-mark-recapture techniques…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

Estimating potential reproductive costs in the survival of a xenosaurid lizard
Zúñiga-Vega, José Jaime

Formato:	Article
Enlaces:	Both females and males may suffer from increased mortality risk as a result of the activities and physiological processes associated with reproduction. In this study I estimated sex-specific reproductive costs in the survival rates of a viviparous and territorial lizard…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

Demographic consequences of chronic anthropogenic disturbance on three populations of the endangered globose cactus Coryphantha werdermannii
Portilla-Alonso, RM - Martorell-Delgado, Carlos

Formato:	Article
Enlaces:	Cacti are thought to be highly vulnerable to chronic anthropogenic disturbance (CAD). To assess its effects, we modeled the dynamics of three populations of the endangered cactus Coryphantha werdermannii exposed to different intensities of disturbance. Because no seedlings germinated and…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

10.

Pattern of root colonization by arbuscular mycorrhizal fungi in Verbesina virgata and their effects on plant growth and leaf physical attributes
Vega-Frutis, R - Sánchez-Gallen, Irene - Guadarrama-Chávez, María Patricia - Sandoval-González, I - Castillo-Argüero, Silvia

Formato:	Article
Enlaces:	Verbesina virgata (Asteraceae) is the stable food of generalist herbivores in xerophytic vegetation of southern Mexico City where nitrogen and phosphorous are limiting soil resources for plant growth and therefore it is likely that arbuscular mycorrhizal fungi play an important…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

11.

Morphological and reproductive variation among populations of the Pacific molly Poecilia butleri
Zúñiga-Vega, José Jaime - Suárez-Rodríguez, M - Espinosa-Pérez, H - Johnson, JB

Formato:	Article
Enlaces:	In viviparous organisms, pregnant females typically experience an increase in body mass and body volume. In this study, the prediction that variation in reproductive traits among populations of viviparous organisms should be related to variation among populations in body shape…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

12.

Hardware radial basis function neural network automatic generation
Leiva, Lucas - Acosta, Nelson

Formato:	Articulo, Articulo
Enlaces:	This paper presents a parallel architecture for a radial basis function (RBF) neural network used for pattern recognition. This architecture allows defining sub-networks which can be activated sequentially. It can be used as a fruitful classification mechanism in many application…
Fecha:	2011-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

13.

Diseño y evaluación de arquitecturas de computadoras
Villagarcía Wanza, Horacio A.

Formato:	Articulo, Revision
Enlaces:	In the first paragraph of the Introduction of the book the authors say "The definition of computer architecture has generated many discussions since the emergence of what could be considered the first computer in 1943, the ENIAC". Later they add…
Fecha:	2011-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

14.

Test automation for Markov Chain Usage Models
Bettinotti, Adriana M. - Garavaglia, Mauricio

Formato:	Articulo, Articulo
Enlaces:	Statistical testing with Markov Chain Usage Models is an effective method to be used by programmers and testers during web sites development, to guarantee the software reliability. The JUMBL software works on this models; it supports model construction with the…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

15.

Distributed systems: principles and paradigms (2nd edition)
Tinetti, Fernando Gustavo

Formato:	Articulo, Revision
Enlaces:	This book presents the authors' updated view on the most relevant topics of distributed systems. This second edition shares most of the contents with the previous one in terms of contents/chapters, but many of the chapters have been updated and…
Fecha:	2011-10-28
Recurso:	Unversidad Nacional de La Plata

Recurso libre

16.

An adaptive variable structure controller for the trajectory tracking of a nonholonomic mobile robot with uncertainties and disturbances
Almeida Martins, Nardênio - El'youssef, Ebrahim Samer - De Pieri, Edson Roberto - Lombardi, Warody Claudinei - Jungers, Marc

Formato:	Articulo, Articulo
Enlaces:	In this paper, a trajectory tracking control for a nonholonomic mobile robot subjected to uncertainties and disturbances in the kinematic model is proposed. An adaptive variable structure controller based on the sliding mode theory is used, and applied to compensate…
Fecha:	2011-03-23
Recurso:	Unversidad Nacional de La Plata

Recurso libre

17.

Position index preserving compression of text data
Akhtar, Nasim - Rashid, Mamunur - Islam, Shafiqul - Kashem, Mohammod Abul - Kolybanov, Cyrll Y.

Formato:	Articulo, Articulo
Enlaces:	Data compression offers an attractive approach to reducing communication cost by using available bandwidth effectively. It also secures data during transmission for its encoded form. In this paper an index based position oriented lossless text compression called PIPC ( Position…
Fecha:	2011-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

18.

Group mutual exclusion based on priorities
Cenci, Karina M. - Ardenghi, Jorge Raúl

Formato:	Articulo, Articulo
Enlaces:	We propose a distributed solution for the group mutual exclusion problem based on priorities, in a network with no share memory whose members only communicate by messages. The proposed algorithm is composed by two players: groups and processes, groups are…
Fecha:	2011-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

19.

Reversible data hiding exploiting variance in wavelet coefficients
Luo, Xu-Ren - Yin, Te-Lung

Formato:	Articulo, Articulo
Enlaces:	In this paper, we present a new reversible data hiding scheme that utilizes the wavelet transform and better exploits the large wavelet coefficient variance to achieve high capacity and imperceptible embedding. Our scheme differs from those of previous studies in…
Fecha:	2011-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

20.

E-mail processing with fuzzy SOMs and association rules
Lanzarini, Laura Cristina - Villa Monte, Augusto - Estrebou, César

Formato:	Articulo, Articulo
Enlaces:	E-mail texts are hard to process due to their short length. In this article, the use of a diffuse neural network that is capable of identifying the most relevant terms in a set of e-mails is proposed. The associations between…
Fecha:	2011-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

21.

Protocols for microcontrollers networks
López, Ricardo A.

Formato:	Articulo, Revision
Enlaces:	The microcontrollers are embedded in our way of life and are found in many devices. The ability of Very High Scale Integration (VLSI) - with almost exponential growth in recent years makes these devices every day contain functions previously unthinkable.
Fecha:	2011-03-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

22.

Using thematic contexts and previous solutions for maintaining and accessing institutional repositories
Delgado, Pablo H. - Maguitman, Ana Gabriela - Ferracutti, Victor M. - Herrera, Luis A.

Formato:	Articulo, Articulo
Enlaces:	Institutional Repositories are collections of digital resources organized to facilitate their long term access. Two fundamental issues that need to be addressed at the moment of implementing these repositories are their maintenance and search instruments. This article describes an intelligent…
Fecha:	2011-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

23.

Image steganography: hiding short audio messages withidin digital images
Khalil, M.I.

Formato:	Articulo, Articulo
Enlaces:	It is sometimes not enough to keep the contents of a message secret, it may also be necessary to keep the existence of the message secret. The technique used to implement this, is called steganography and it is the process…
Fecha:	2011-10-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

24.

Forward-link throughput optimization for wireless cellular packet data networks
Ekpenyong, Moses E.

Formato:	Articulo, Articulo
Enlaces:	An attempt has been made in this paper to access the control layer of the General Packet Radio Service (GPRS) network base station (BS), using throughput optimization. We focus on the effect of packet transmissions on the throughput of forwardlink…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

25.

Fuzzy classification to classify the income category based on entropy
Srinivasan, Vaiyapuri - Govind, Rajenderan - Jagannathan, Vandar Kuzhali - Murugesan, Aruna

Formato:	Articulo, Articulo
Enlaces:	The classification problem is one of the main issues in data mining because it aims to extract a classifier which can be used to predict the classes of objects whose class table are unknown. This paper deals with classifying the…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

26.

Formal analysis of a novel mutual authentication and key agreement protocol
Saraireh, Ja'afer M. al - Saraireh, Saleh S. - Saraireh , Mohammad S. - Nabhan, Mohammad M. al

Formato:	Articulo, Articulo
Enlaces:	This research work analyzes the universal mobile telecommunication system (UMTS) authentication and key agreement (AKA) protocol, which suffers from the traffic bottleneck at home location register and authentication center (HLR/AuC). In addition, serving network has no capability to authenticate mobile…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

27.

A formal structure of separation of duty and trust in modelling delegation policy
Ogundele, Oloruntoba Samuel - Adewale, O. S. - Alese, B. K. - Falaki, S. O.

Formato:	Articulo, Articulo
Enlaces:	There are considerable number of approaches to policy specification both for security management and policy driven network management purposes as reported in [20]. This specification sort security policies into two basic types: authorization and obligation policies. Most of the researches…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

28.

Fortran refactorings for legacy systems
Méndez, Mariano

Formato:	Articulo, Revision
Enlaces:	This thesis is based on a certain type of legacy software that came from scientific research. Scientists have become one of the most important legacy code producers for many reasons. One of these is long-lived field (about 50 years old)…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

29.

Methodology for efficient execution of SPMD applications on multicore clusters
Muresano, Ronal

Formato:	Articulo, Revision
Enlaces:	Nowadays, the scientific applications are developed with more complexity and accuracy and these precisions need high computational resources to be executed. Also, the current trend in high performance computing (HPC) is to find clusters composed of Multicore nodes, and these…
Fecha:	2011-10-27
Recurso:	Unversidad Nacional de La Plata

Recurso libre

30.

The seven ages of Fortran
Metcalf, Michael

Formato:	Articulo, Articulo
Enlaces:	When IBM's John Backus first developed the Fortran programming language, back in 1957, he certainly never dreamt that it would become a world-wide success and still be going strong many years later. Given the oft-repeated predictions of its imminent demise,…
Fecha:	2011-03-30
Recurso:	Unversidad Nacional de La Plata

Recurso libre

31.

Multipath fault-tolerant routing policies to deal with dynamic link failures in high speed interconnection networks
Zarza, Gonzalo

Formato:	Articulo, Revision
Enlaces:	In this thesis, we present fault-tolerant routing policies based on concepts of adaptability and deadlock freedom, capable of serving interconnection networks affected by a large number of dynamic link failures. The strongest point of this thesis is that it provides…
Fecha:	2011-10-28
Recurso:	Unversidad Nacional de La Plata

Recurso libre

32.

Definition of a goal elicitation process
Thomas, Pablo Javier

Formato:	Articulo, Revision
Enlaces:	Descripción completa.
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

33.

Design, evaluation and optimization of the wavelet transform for medical video coding in single processor architectures
Bernabé García, Gregorio

Formato:	Articulo, Revision
Enlaces:	Descripción completa.
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

34.

Championing school nursing: an interview with Woody Caan
Caan, Woody

Formato:	Article
Enlaces:	Woody Caan, a strong supporter of school nursing, explains why he believes school nurses have a vital role to play in the health and wellbeing of children and young people.
Fecha:	2011-09-22
Recurso:	Anglia Ruskin University

Recurso libre

35.

Ubiquigeneous networking: a distributed networking application over mobile embedded devices
Kohn, Rodolfo - Marrone, Luis Armando

Formato:	Articulo, Revision
Enlaces:	Resumen de la tesis del autor para obtener el grado de Magister en Redes de Datos de la Facultad de Informática de la UNLP, dirigida por Luis Armando Marrone.
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

36.

Defeasible logic programming: language definition, operational semantics, and parallelism
García, Alejandro Javier

Formato:	Articulo, Revision
Enlaces:	This thesis defines Defeasible Logic Programming and provides a concrete specification of this new language through its operational semantics. Defeasible Logic Programming, or DeLP for short, has been defined based on the Logic Programming paradigm and considering features of recent…
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

37.

Distributed environment applied to HR formation/training: a cooperative/collaborative learning model
Lage, Fernando Javier

Formato:	Articulo, Revision
Enlaces:	The subject matter of this work is focused in the development of an application for team work over a distributed system belonging to an organization. This choice is based in the organizations need of their members’ continuing formation/training, and of…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

38.

Error analysis in lossy compressed image transmission algorithms
Ramón, Hugo Dionisio

Formato:	Articulo, Revision
Enlaces:	There is a need of counting on precise measurements of subjective losses that can be used for predicting the quality of an image. The objective of the present work is to determine these distortion measurements and test the use of…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

39.

Heterogeneous parallel-distributed processing applied to process engineering
Vázquez, Gustavo Esteban

Formato:	Articulo, Revision
Enlaces:	The main goal of this thesis was to design new parallel processing strategies specially conceived for distributed environments in order to solve numerical and structural problems from the field of process systems engineering more efficiently. More specifically, the numerical sample…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

40.

A high-level perception architecture: real-time visual navigation for autonomous robots in structured environments
López de Teruel Alcolea, Pedro E.

Formato:	Articulo, Revision
Enlaces:	This thesis describes the design and implementation of a mobile robot which is able to perform a structural interpretation of indoor environments, using only visual and proprioceptive sensory information. The desired behaviour is real-time navigation based on this interpretation, instead…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

41.

Dynamic tuning of parallel/distributed applications
Morajko, Anna

Formato:	Articulo, Revision
Enlaces:	The thesis addresses the problem of automatic and dynamic tuning of parallel and distributed applications. Our objective is to help developers in the process of improving the application performance. The work presents a whole solution that deals with the issues…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

42.

Parallel computing in local area networks
Tinetti, Fernando Gustavo

Formato:	Articulo, Revision
Enlaces:	In this thesis, parallel computing on installed local area networks (LAN) is focused, analyzing problems and possible solutions taking into account the main factors of computing and communications. More specifically, LAN are characterized as parallel computers in the context of…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

43.

Parallel processing
Naiouf, Marcelo

Formato:	Articulo, Revision
Enlaces:	The growing importance and interest in parallel processing within Computer Sciences are undeniable, and thus make it one of the more influencing areas of this discipline. Several reasons support this fact, such as the increase in the computer power, the…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

44.

Design, implementation, and evaluation of a new journaling file system with data and meta-data separation
Piernas Cánovas, Juan

Formato:	Articulo, Revision
Enlaces:	This thesis describes the design, implementation and evaluation of a journaling file system called DualFS. Our main goal is to improve disk I/O by designing a new file system which must have two features: a better performance than that of…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

45.

Test of distributed applications migration to Web environments
Ciolli, María Elena

Formato:	Articulo, Revision
Enlaces:	This essay is based on a previous “regression” testing knowledge, black box testing and user graphic interfaces testing. Besides, due to the fact that the testing life cycle is inside the software life cycle, the suggested focus promotes existing test…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

46.

Using scenarios to derive software
Hadad, Graciela Dora Susana

Formato:	Articulo, Revision
Enlaces:	The present thesis describes a Requirements Engineering strategy, called SDRES (Scenario Driven Requirements Engineering Strategy), which proposes to face topics rarely treated in real practice, such as continuous changes in requirements, software defects originated during requirements production, the organisational context…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

47.

Dynamic scheduling on GRID environments
Bertogna, Leandro M

Formato:	Articulo, Revision
Enlaces:	The work carried out in the thesis describes efficient virtual environments management. One of the main contributions is a middleware scheduling optimization based on Grid environments. Being the overall goal to get an optimal resource selection plus a coordinate task…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

48.

The implementation and application of the business excellence model in SMEs
Armitage, Andrew M.D.

Formato:	Article
Enlaces:	This paper reports two case studies of the use of the business excellence model (BEM) in two small- to medium-sized enterprises (SMEs) which entered the 1999 East of England Excellence (EEE) regional Quality Award. The experiences of these organisations will…
Fecha:	2011-05-25
Recurso:	Anglia Ruskin University

Recurso libre

49.

Reducing branch misprediction penalty through confidence estimation
Aragón, Juan Luis

Formato:	Articulo, Revision
Enlaces:	The goal of this Thesis is reducing the global penalty associated to branch mispredictions, in terms of both performance degradation and energy consumption, through the use of confidence estimation. The reduction of this global penalty has been achieved, firstly, by…
Fecha:	2011-09-02
Recurso:	Unversidad Nacional de La Plata

Recurso libre

50.

Spherical layout layout for 3D graph visualization
Larrea, Martín Leonardo

Formato:	Articulo, Revision
Enlaces:	The goal of this work was centered in the graph visualization. The hope is that the extra dimension would give, literally, more space, and that this would ease the problem of displaying large structures. In spite of their apparent simplicity,…
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

51.

Sistema basado en redes neuronales digitales aplicado a la predicción climática en ambientes con microclima controlado
Tosini, Marcelo Alejandro

Formato:	Articulo, Revision
Enlaces:	This thesis describes the design, implementation and evaluation of FPGA Architecture of a Digital ANN (Artificial Neural Networks) by using four components: data memory, weights memory, neuron module, and control unit. All these components have a generic orthogonal structure in…
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

52.

Disjoint multipath routing for mobile ad hoc networks
Abbas, Ash Mohammad

Formato:	Articulo, Revision
Enlaces:	In this thesis, we emphasized the need to use multiple node-disjoint paths between a given source and destination. The use of node-disjoint paths not only allows different paths to share the trafﬁc, but also provides fault-tolerance to some extent. However,…
Fecha:	2011-09-01
Recurso:	Unversidad Nacional de La Plata

Recurso libre

53.

Feedback scheduling of real-time control systems with resource constraints
Xia, Feng

Formato:	Articulo, Revision
Enlaces:	This thesis observes the emerging trend of convergence of control with computing and communication. By exploiting control and scheduling codesign, we study some practical and open problems in RTCSs from a unique viewpoint of dynamic resource management. Considering constraints on…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

54.

Semiotics of the web interface: analysis and guidelines
Nazrul Islam, Muhammad

Formato:	Articulo, Revision
Enlaces:	The growth of technological innovations, internet developments, and their (web) applications has raised a definite issue on retaining the web interface quite understandable, and a need is also being felt on developing suitable and coherent guidelines for designing interface to…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

55.

Design and implementation considerations for a pedagogical object oriented operating system
Chakraborty, Pinaki

Formato:	Articulo, Revision
Enlaces:	For centuries, experimentation has been at the center of all successful scientific studies. Experimental explorations can offer new perceptions, weed out unproductive approaches and validate theories and practices. Computer Science (CS), as a discipline, has a poor record when it…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

56.

Hybrid optimization techniques for industrial production planning
Vasant, Pandian M.

Formato:	Articulo, Revision
Enlaces:	In this Ph. D thesis, the main significant contributions are: formulation of a new non-linear membership function using fuzzy approach to capture and describe vagueness in the technological coefficients of constraints in the industrial production planning problems [1-3]. This non-linear…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

57.

Parallel application signature for performance prediction
Wong, Alvaro

Formato:	Articulo, Revision
Enlaces:	In order to measure the performance of a parallel machine, a set of application kernels as benchmarks have often been used. However, it is not always possible to characterize the performance using only benchmarks, given the fact that each one…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

58.

A formal foundation for transformations in model driven engineering
Giandini, Roxana Silvia

Formato:	Articulo, Revision
Enlaces:	In the MDE (Model Driven Engineering) paradigm, models are thought to be the primary conductors in all software development aspects. A PIM (Platform Independent Model) is transformed into one or more PSMs (Platform Specific Model); hence, a specific PSM is…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

59.

Undertaking a structured literature review or structuring a literature review: tales from the field
Armitage, Andrew M.D. - Keeble-Allen, Diane

Formato:	Article
Enlaces:	The diversity of sources of literature within the management disciplines has resulted in a growing need for a systematic methodology to map the territory of its associated theories and models. As such, when scoping out a doctoral or policy based…
Fecha:	2011-09-20
Recurso:	Anglia Ruskin University

Recurso libre

60.

Software network analyzer for computer network performance measurement planning over heterogeneous services in higher educational institutes
Ismail, Mohd Nazri

Formato:	Articulo, Revision
Enlaces:	In 21st century, convergences of technologies and services in heterogeneous environment have contributed multi-traffic. This scenario will affect computer network on learning system in higher educational Institutes. Implementation of various services can produce different types of content and quality. Higher…
Fecha:	2011-08-31
Recurso:	Unversidad Nacional de La Plata

Recurso libre

61.

Circuitry and role of substance P-immunoreactive neurons in the primate retina
Cuenca Navarro, Nicolás - Kolb, Helga

Formato:	info:eu-repo/semantics/article
Enlaces:	In this paper, we extend our previous light microscopic (LM) study of substance P (SP)-containing amacrine and ganglion cell types of the human retina (Cuenca et al. [1995] J. Comp. Neurol. 356:491–504) to an electron microscopic (EM) and confocal-imaging study…
Fecha:	2011-03-26
Recurso:	RUA Docencia

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62.

Benjamin, BitTorrent, Bootlegs: auratic piracy cultures?
Rodríguez Ferrándiz, Raúl

Formato:	info:eu-repo/semantics/article
Enlaces:	Seventy-five years ago, Walter Benjamin showed us that the line between "production" and "reproduction" had begun to blur. Reproduction was no longer optional, consequential and degrading (the shredding of the original’s aura), but was instead being transformed into a principle…
Fecha:	2012-04-23
Recurso:	RUA Docencia

Recurso libre

63.

Calumniated Republicans and the hero of Shelley’s “Charles the First"
Crook, Nora

Formato:	Article
Enlaces:	Descripción completa.
Fecha:	2010-12-09
Recurso:	Anglia Ruskin University

Recurso libre

64.

A new prospect of additivity in bankruptcy problems
Alcalde Pérez, José - Marco Gil, María del Carmen - Silva Reus, José Ángel

Formato:	info:eu-repo/semantics/preprint
Enlaces:	This paper explores additivity-like properties fulled by bankruptcy rules. Our main result is that the unique rule satisfying an adittivity-like property is the Minimal Overlap proposed by O'Neill. We also propose some conections relative to additivity properties in close frameworks…
Fecha:	2009-04-01
Recurso:	RUA Docencia

Recurso libre

65.

The internationalisation of small- and medium-sized management consultancies: an exploratory study of key facilitating factors
Deprey, Brynn Darin - Lloyd-Reason, Lester - Ibeh, Kevin I.N.

Formato:	Article
Enlaces:	This paper presents preliminary case-study evidence on key factors associated with the internationalisation of management consultancy small- to medium-sized enterprises (SMEs), including how these factors differ from previous aggregate evidence based mainly on manufacturing firms. It contributes by adding to…
Fecha:	2012-11-27
Recurso:	Anglia Ruskin University

Recurso libre

66.

Through gender parity in scientific publications
Jiménez Rodrigo, María Luisa - Martínez Morante, Emilia - García Calvente, María del Mar - Álvarez-Dardet Díaz, Carlos

Formato:	info:eu-repo/semantics/article
Enlaces:	Despite increased numbers of female researchers, women still face more difficulties than their male counterparts when it comes to publishing their work and having it read and cited. In this editorial, the main recommendations are detailed in order to promote…
Fecha:	2008-11-03
Recurso:	RUA Docencia

Recurso libre

67.

Development of multi-level system of steganography
Ogundele, Tunde Joseph - Adetunmbi, Adebayo Olusola

Formato:	Articulo, Articulo
Enlaces:	Internet world is characterized by many users among which are crackers and thieves. Hence, the need for a secured system to safely exchange confidential information among users across the web is required. Of such tool is steganography that simply hides…
Fecha:	2013-03-26
Recurso:	Unversidad Nacional de La Plata

Recurso libre

68.

Providing Genetic Testing Through the Private Sector: A View From Canada
Caulfield, Timothy - Burgess, Michael M. - Williams-Jones, Bryn

Formato:	Article
Enlaces:	Genetic testing technologies are rapidly moving from the research laboratory to the market place. Very little scholarship considers the implications of private genetic testing for a public health care system such as Canada’s. It is critical to consider how and…
Fecha:	2009-07-06
Recurso:	Université de Montreal

Recurso libre

69.

Stereotype priming in face recognition: interactions between semantic and visual information in face encoding
Hills, Peter J. - Lewis, Michael B. - Honey, R.C.

Formato:	Article
Enlaces:	The final version of this article published by Elsevier in the Journal of Cognition can be found here: http://www.sciencedirect.com/science/article/pii/S0010027708000772, The accuracy with which previously unfamiliar faces are recognised is increased by the presentation of a stereotype-congruent occupation label (Klatzky, Martin,…
Fecha:	2013-06-25
Recurso:	Anglia Ruskin University

Recurso libre

70.

Flexible multi-sensorial system for automatic disassembly using cooperative robots
Gil Vázquez, Pablo - Pomares Baeza, Jorge - Puente Méndez, Santiago Timoteo - Díaz Baca, Carolina Soledad - Candelas Herías, Francisco Andrés - Torres Medina, Fernando

Formato:	info:eu-repo/semantics/article
Enlaces:	Flexible multisensorial systems are a very important issue in the current industry when disassembling and recycling tasks have to be performed. These tasks can be performed by a human operator or by a robot system. In the current paper a…
Fecha:	2008-09-26
Recurso:	RUA Docencia

Recurso libre

71.

Serendip Deborahae n. gen. and n. sp. (Eucestoda: Tetraphyllidea: Serendipidae n. fam.) in Rhinoptera steindachneri Evermann and Jenkins, 1891 (Chondrichthyes: Myliobatiformes: Myliobatidae) from southeastern Ecuador
Brooks, Daniel - Barriga, Ramiro

Formato:	Article
Enlaces:	Este artículo trata sobre los Cestodos recogidos en las válvulas espirales de Rhinoptera steindachneri de la costa sur de Ecuador representan un especie no descrita de Tetraphyllidea. La nueva especie ha bothridia poseen septos pero que carecen de los retoños…
Fecha:	2012-11-19
Recurso:	Escuela Politécnica Nacional

Recurso libre

72.

Partitioning the variation of woody plant ?-diversity in a landscape of secondary tropical dry forests across spatial scales
López-Martínez, JO - Hernández-Stefanoni, JL - Dupuy, JM - Meave del Castillo, Jorge Arturo

Formato:	Article
Enlaces:	What is the relative importance of forest successional age, environmental heterogeneity, landscape structure and spatial structure of sampling sites on ?-diversity of tropical dry forests (TDF)? How do the magnitude of ?-diversity and the relative influence of factors, processes and…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

73.

The adaptive value of cued dispersal in desert plants: seed retention and release in Mammillaria pectinifera, a small globose cactus
Peters, EM - Martorell-Delgado, Carlos - Ezcurra, E

Formato:	Article
Enlaces:	Serotiny, or delayed seed dispersal, is common in fluctuating environments because it hedges the risks of establishment. Mammillaria pectinifera (Cactaceae) facultatively expels fruits in the year they are produced or retains them to disperse the seed over several years. We…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

74.

Demography of the lizard Sceloporus grammicus: exploring temporal variation in population dynamics
Zúñiga-Vega, José Jaime - Méndez-de la Cruz, FR - Cuellar, O

Formato:	Article
Enlaces:	We conducted a 5 year demographic study in one population of the viviparous lizard Sceloporus grammicus Wiegmann, 1828 in central México. The population was structured in three size classes (juveniles, small adults, and asymptotic adults) for which we estimated annual…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

75.

Effect of leaf harvesting on the demography of the tropical palm Chamaedorea elegans in South-Eastern Mexico
Valverde-Valdés, María Teresa - Hernández-Apolinar, Mariana - Mendoza-Amaro, S

Formato:	Article
Enlaces:	We report the results of a two-year demographic study in which natural populations of Chamaedorea elegans were subject to harvesting twice a year, four times a year, and no harvesting. Projection matrix analyses indicated that population growth rate (?) was…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

76.

Application of recent double-hybrid density functionals to low-lying singlet-singlet excitation energies of large organic compounds
Di Meo, Florent - Trouillas, Patrick - Adamo, Carlo - Sancho García, Juan Carlos

Formato:	info:eu-repo/semantics/article
Enlaces:	The present work assesses some recently developed double-hybrid density functionals (B2π-PLYP, PBE0-DH, and PBE0-2) using linear-response Tamm-Dancoff Time-Dependent Density Functional Theory. This assessment is achieved against experimentally derived low-lying excitation energies of large organic dyes of recent interest, including some…
Fecha:	2013-11-12
Recurso:	RUA Docencia

Recurso libre

77.

Motzkin decomposition of closed convex sets
Goberna Torrent, Miguel Ángel - González, E. - Martínez Legaz, Juan Enrique - Todorov, Maxim I.

Formato:	info:eu-repo/semantics/article
Enlaces:	Theodore Motzkin proved, in 1936, that any polyhedral convex set can be expressed as the (Minkowski) sum of a polytope and a polyhedral convex cone. This paper provides five characterizations of the larger class of closed convex sets in finite…
Fecha:	2010-11-19
Recurso:	RUA Docencia

Recurso libre

78.

Eating behaviors and physical activity in Albanians 9-11 years ald children
Çitozi, Robert - Pano, Genti

Formato:	info:eu-repo/semantics/article
Enlaces:	As most research about preferences has ignored cognitive development, this study was designed to explore the relation between children's perceptions and preferences for fruit and vegetables and their physical activity. 210 children (100-boys and 110-girls) 9-11 years old recruited via…
Fecha:	2012-03-09
Recurso:	RUA Docencia

Recurso libre

79.

Analytic expressions for the inelastic scattering and energy loss of electron and proton beams in carbon nanotubes
Emfietzoglou, Dimitris - Kyriakou, Ioanna - García Molina, Rafael - Abril Sánchez, Isabel - Kostarelos, Kostas

Formato:	info:eu-repo/semantics/article
Enlaces:	We have determined “effective” Bethe coefficients and the mean excitation energy of stopping theory (I-value) for multiwalled carbon nanotubes (MWCNTs) and single-walled carbon nanotube (SWCNT) bundles based on a sum-rule constrained optical-data model energy loss function with improved asymptotic properties.…
Fecha:	2012-11-29
Recurso:	RUA Docencia

Recurso libre

80.

Survival and early growth of two congeneric cacti that differ in their level of rarity
Miquelajáuregui, Y - Valverde-Valdés, María Teresa

Formato:	Article
Enlaces:	In this paper we analyze the growth and early survival of two congeneric columnar cacti: the rare Neobuxbaumia macrocephala (with low population densities and a narrow distribution range), and the relatively common Neobuxbaumia mezcalaensis (with dense populations and a broader…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

81.

Growth response of three globose cacti to radiation and soil moisture: an experimental test of the mechanism behind the nurse effect
Martínez-Berdeja, A - Valverde-Valdés, María Teresa

Formato:	Article
Enlaces:	Cactus seedlings often establish under nurse plants which modify environmental conditions by increasing moisture and decreasing solar radiation, which may cause beneficial and detrimental effects, respectively, on seedling growth. Three soil moisture treatments (5%, 25% and 60%) and two solar…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

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82.

Reproductive variation of the lizard Xenosaurus platyceps: comparing two populations of contrasting environments
Rojas-González, RI - Zúñiga-Vega, José Jaime - Lemos-Espinal, JA

Formato:	Article
Enlaces:	We studied litter size, size at birth, and relative litter mass (RLM) in two populations of the crevice-dwelling lizard Xenosaurus platyceps: one located in a low-altitude tropical forest; and the other in a high-altitude temperate oak forest. We found a…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

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83.

Variation in the population dynamics of the palm Sabal yapa in a landscape shaped by shifting cultivation in the Yucatan Peninsula, Mexico
Pulido, MT - Valverde-Valdés, María Teresa - Caballero, J

Formato:	Article
Enlaces:	To understand the population dynamics of a species, it is necessary to document the way in which its demographic behaviour varies through space and time. Anthropogenic disturbance, such as shifting cultivation, is an important factor causing demographic variation in many…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

84.

Variation in reproductive traits within the lizard genus Xenosaurus
Zamora-Abrego, JG - Zúñiga-Vega, José Jaime - Nieto-Montes de Oca, A

Formato:	Article
Enlaces:	We document variation among 13 populations of distinct species of the lizard genus Xenosaurus in four key reproductive traits: minimum size at maturity, litter size, size at birth, and relative clutch mass (RCM). Despite a common flattened morphology, considerable variation…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

85.

Population dynamics of the shrub Acacia bilimekii in a semi-desert region in Central Mexico
Jiménez-Lobato, V - Valverde-Valdés, María Teresa

Formato:	Article
Enlaces:	Shrubs are important elements of semi-desert vegetation. They provide microhabitats for the establishment of many species under their canopies thus maintaining community structure and diversity. Yet, little is known regarding their population processes and the factors that affect them. In…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

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86.

Phosphorus dependence in seedlings of a tropical pioneer tree: the role of arbuscular mycorrhizae
Guadarrama-Chávez, María Patricia - Álvarez-Sánchez, Francisco Javier - Estrada-Torres, A

Formato:	Article
Enlaces:	In general, according to previous studies, pioneer species do not require arbuscular mycorrhizal fungi (AMF) to increase their growth and survival in tropical systems. The aim of this study was to determine the dependence response to AMF of Heliocarpus appendiculatus,…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

87.

Rosette scrub occurrence and fog availability in arid mountains of Mexico
Martorell-Delgado, Carlos - Ezcurra, E

Formato:	Article
Enlaces:	Large succulent leaf rosettes are a characteristic life form in many deserts. In certain areas they become the dominant life form, creating a vegetation type indicated as rosette scrub. The large number of rosette species suggests a close relationship between…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

88.

Coastal sand dune vegetation: an extreme case of species invasion
Castillo-Argüero, Silvia - Moreno-Casasola, P

Formato:	Article
Enlaces:	The coastal sand-dune flora of the Gulf and Caribbean region of Mexico was analyzed to understand differences in floristic composition and richness found along the coast. Each of the 655 species reported was classified according to its ecology and distribution…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

89.

Late life second move housing choices of international retiree migrants
Gibler, Karen M. - Casado Díaz, José Manuel - Casado Díaz, María Ángeles - Rodríguez Rodríguez, Vicente - Taltavull de La Paz, Paloma

Formato:	info:eu-repo/semantics/article
Enlaces:	Purpose – Many international retirement migrants are amenity movers undertaking the first move in the late life course model of migration. The purpose of this paper is to examine second moves within the retirement destination community to test whether the…
Fecha:	2013-04-23
Recurso:	RUA Docencia

Recurso libre

90.

Electrochemical behaviour of amino acids on Pt(h, k, l): a voltammetric and in situ FTIR study. Part II. Serine and alanine on Pt(111)
Huerta Arráez, Francisco - Morallón Núñez, Emilia - Cases Iborra, Francisco Javier - Rodes García, Antonio - Vázquez Picó, José Luis - Aldaz Riera, Antonio

Formato:	info:eu-repo/semantics/article
Enlaces:	A spectroelectrochemical study of the adsorption and oxidation of serine and alanine on Pt(111) electrodes has been carried out in 0.1 M HClO4 solutions. From the voltammetric and FTIR spectroscopic results, we concluded that adsorbed cyanide is formed at the…
Fecha:	2008-09-25
Recurso:	RUA Docencia

Recurso libre

91.

The rarámuri race as a metaphor of cultural resistance
Acuña Delgado, Ángel - Acuña Gómez, Guillermo

Formato:	info:eu-repo/semantics/article
Enlaces:	The one who does not last does not survive! Says an old principle rarámuri, ethnic group located in the Saw Tarahumara, inside the Western Mother Saw of the State Chihuahua in Mexico. Immersed in an ecologically hard environment for the…
Fecha:	2009-01-08
Recurso:	RUA Docencia

Recurso libre

92.

Anthropometric comparison between young Estonian and Chinese swimmers
Cicchella, Antonio - Jidong, Li - Jürimäe, Toivo - Zini, Maddalena - Passariello, Catherine - Rizzo, L. - Stefanelli, Claudio

Formato:	info:eu-repo/semantics/article
Enlaces:	Due to the progressive lowering of the age of peak performance among swimmers, it became important to better understand the factors influencing performance in prepuberal boys and girls. Aim of this study is to compare two different racial/ethnic groups of…
Fecha:	2009-07-03
Recurso:	RUA Docencia

Recurso libre

93.

Does retained-seed priming drive the evolution of serotiny in drylands? An assessment using the cactus Mammillaria hernandezii
Santini, BA - Martorell-Delgado, Carlos

Formato:	Artículo de investigación, Article
Enlaces:	Premise of the study: Serotinous plants retain their seeds for a long time. In deserts, retained seeds undergo hydration-dehydration cycles and thus may become primed. Priming enhances germination and seedling vigor. We test the hypothesis that serotiny evolves because it…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

94.

Modeling α- and β-diversity in a tropical forest from remotely sensed and spatial data
Hernández-Stefanoni, JL - Gallardo-Cruz, JA - Meave del Castillo, Jorge Arturo - Rocchini, D - Bello-Pineda, J - López-Martínez, JO

Formato:	Article
Enlaces:	Comprehensive information on species distribution and species composition patterns of plant communities is required for effective conservation and management of biodiversity. Remote sensing offers an inexpensive means of attaining complete spatial coverage for large areas, at regular time intervals, and…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

95.

A comparison of traditional elasticity and variance-standardized perturbation analyses: a case study with the tropical tree species Manilkara zapota (Sapotaceae)
Cruz-Rodríguez, JA - López-Mata, L - Valverde-Valdés, María Teresa

Formato:	Article
Enlaces:	Knowledge of the population dynamics of tropical trees has expanded considerably in the past 20 years. An important observation deriving from these investigations is the confirmation that population behaviour varies both in time and space. A tool recently developed to…
Fecha:	2013-04-05
Recurso:	Facultad de Ciencias - UNAM

Recurso libre

96.

Editorial

Formato:	journal article
Enlaces:	Descripción completa.
Fecha:	2011-12-01
Recurso:	SCIELO

Recurso libre

97.

Metamaterials
Borja, Alejandro Lucas - Kelly, James R. - Zhang, Fuli - Lheurette, Eric

Formato:	Article
Enlaces:	This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited., Editorial.
Fecha:	2013-07-08
Recurso:	Anglia Ruskin University

Recurso libre

98.

Requirements and analysis: where is the boundary if any?
Oliveros, Alejandro

Formato:	Articulo, Articulo
Enlaces:	Descripción completa.
Fecha:	2008-10-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

99.

Requirement and analysis: where is the boundary if any?
Pastor, Oscar

Formato:	Articulo, Articulo
Enlaces:	Descripción completa.
Fecha:	2008-10-10
Recurso:	Unversidad Nacional de La Plata

Recurso libre

100.

Requirements engineering-challenges from the agent-oriented approach
Cysneiros, Luiz Marcio

Formato:	Articulo, Articulo
Enlaces:	Descripción completa.
Fecha:	2008-10-10
Recurso:	Unversidad Nacional de La Plata