bluuebunny/crossref_metadata_2025_split huggingface dataset:
Asymmetric Price Adjustment: Are IPO Prices too "Sticky"?
Authors: Adams Michael , Thornton Barry , Baker Russ 
Published: March 2016

The study of IPO mispricing is salient because it raises important questions concerning market efficiency and the existence of systematic stock patterns that can be employed by investors to generate excess market returns. The purpose of this paper is to investigate the informational efficiency of IPO market prices with respect to the first 3 trading day’s return and to examine the effect of varying investor sentiment on this information efficiency. Under traditional definitions of market efficiency, asset prices, including IPO prices should fully reflect all available and relevant information (Fama 1970). An increasing body of empirical evidence, however, suggests that IPO prices are not efficient as evidenced both in the short run and the long run. The speed of incorporation of new information into stock prices is critical to many central issues in financial research, such as market efficiency, arbitrage, and market structure. This paper analyzes the speed of price adjustment to information events for IPOs. The setting of the immediate aftermarket presents an opportunity to investigate the issue when little or no trading history exists. In such a setting, investors are more exposed to new information because they cannot observe the stock price behavior or the reactions to previous information signals.
Influence Of Unusual Economic Conditions On The Occurrence Of The Size Anomaly
Authors: Mossman Charles E. , Rakhmayil Sergiy 
Published: March 2016

Much of the explanation for the size anomaly has been assigned to taxation and behavioural issues near the end of the calendar year. However, factor models based on company characteristics suggest that some type of risk may also have a long term effect on returns. We use a traditional multifactor model to re-examine the influence of macroeconomic variables on the magnitude and direction of size portfolio returns using traditional and Logit regression models. Our results indicate significant differences in sensitivity of returns to the market risk factor across size portfolios, but limited mean return effects of economic and financial factors. However, we find that macroeconomic factors that take on unusually extreme values influence the probable direction of annual size anomalies. The unusual economic conditions may influence investor risk-return expectations differentially across size portfolios. These differing expectations are reflected in the occurrence of a size anomaly.
An Outcome-Based Perspective Of Leadership: Investigating The Direct Effects Of Corporate Leaders On The Firms Financial Outcome
Authors: Rakotobe-Joel Thierry , Sabrin Murray 
Published: March 2016

Current leadership theories appear to have not kept up with modern theories of the firm and modern financial approaches. Now there appears to be a major disconnect between leadership measures and the firm’s financial performance. This situation can be seen through the general practice of closely identifying leaders with their firms, and yet, relying on organizational/market/industry variables to investigate the financial results of the firm in empirical business studies which directly points toward the need for an outcome-based perspective of leadership theory. This can be achieved by the assessment of their resource utilization and value-adding propensity in the course of performing their ‘stewardship’ and ‘agency’ roles. This paper proposes a framework for a leadership perspective, based on organizational results, using the financial signature concept. A sample from Fortune 500 companies was used in the study. The results show that leaders, by playing a dual roles of agent and steward, not only have a strong influence on their firm’s financial outcome, but also exhibit specific level of propensity to conserving or spending resources that is a direct reflection of their ability to govern in relation to their stakeholders expectations. This finding has many implications in understanding corporate behavior and public perception. It could also provide important elements to studying ethical and finance behavioral issues that affect many modern corporations in recent years.
Efecto del nivel de energía y proteína en la dieta sobre el desempeño productivo de alevinos de Oreochromis niloticus, variedad chitralada
Authors: Escobar Johans Alexander , Reinoso Viviana del Rosario , Landinez Miguel Ángel 
Published: March 2016

El objetivo del trabajo fue evaluar el desempeño productivo de alevinos de Oreochromis niloticus variedad chitralada, alimentados con diferentes niveles de energía y proteína. Se implementaron seis dietas con dos niveles de energía (3300 y 3600 kcal/kg) y tres niveles de proteína (35, 40 y 45%) generando seis diferentes relaciones energía/proteína (10,28; 9,42; 9,00; 8,25; 8,00 y 7,33 kcal ED/g: PC). Se utilizaron 192 alevinos, los cuales fueron distribuidos aleatoriamente en cuatro acuarios por tratamiento a una densidad de 8 individuos por acuario. El alimento fue ofrecido a voluntad dos veces al día (8:00 y 15:00 horas). Fue registrado el peso de los alevinos al inicio del experimento y posteriormente cada 15 días, hasta el día 45, día en el cual se concluyó el ensayo. Fueron evaluados: Ganancia de Peso (GP),Tasa de Crecimiento Específico (TCE), Factor de Conversión Alimenticia (FCA), Eficiencia de Utilización de Energía y de Proteína (EUE y EUP), Tasa de Retención de Energía y de Proteína (TRE y TRP) y sobrevivencia. Para GP las relaciones energía/proteína de 8,25 y 9,42 fueron las que mejores resultados mostraron (p<0,05). En cuanto a la TCE, FCA, EUE y EUP no hubo diferencias significativas entre ninguno de los tratamientos utilizados (p>0,05); similar comportamiento se observó en la TRP, sin embargo la TRE fue significativamente superior (p<0,05) al utilizar la relación energía/proteína de 7,33 y en general fue mejor en los tratamientos con 3300 kcal/kg con respecto a los de 3600 kcal/kg. La sobrevivencia no fue afectada por los tratamientos (p>0,05).
Análisis correlacional entre la radiación ultravioleta del sol y la prevalencia de conjuntivitis actínicas en escolares entre 5 y 12 años de edad, a tres alturas sobre el nivel del mar en el departamento de Cundinamarca
Authors: Pérez Mogollón Jose Fernando , Bohórquez Ballén Jaime 
Published: March 2016

<p>La conjuntiva, por estar directamente en contacto con el medio ambiente exterior, es la parte del ojo más susceptible, a sufrir fenómenos irritación y conjuntivitis actínica, siendo la población infantil la más vulnerable a los efectos de la exposición prolongada al sol y, por consiguiente, a la radiación ultravioleta (RUV). Objetivo: realizar un análisis correlacional, entre la RUV y la prevalencia de conjuntivitis actínica, en 150 niños y niñas, de 5 a 12 años de edad, en tres municipios del departamento de Cundinamarca, Colombia: La Calera con 2850 m.s.n.m, Bogotá con 2630 m.s.n.m y Guayabal de Síquima con 1630 m.s.n.m. Materiales y métodos: se usaron como instrumentos el examen optométrico y un radiómetro con sensor biológico (espectro de acción eritemático), estableciendo el diagnóstico de conjuntivitis actínica en la población objeto del estudio y los valores de RUV en las diferentes alturas. Resultados: se encontró en el análisis de variancia una correlación lineal, entre la prevalencia de conjuntivitis actínica y la RUV (dosis promedio diaria por mes). Conclusión: se halló la información necesaria, para poder mejorar en un futuro la prevención de la conjuntivitis causada por la RUV.</p>
Bacilos gram negativos, contaminantes más prevalentes en lentes de contacto blandos usados
Authors: Castiblanco Diana , Rodríguez Martha Fabiola , Mayorga C. Myriam Teresa 
Published: March 2016

<p>Las bacterias son los contaminantes más frecuentes de los lentes de contacto. Objetivo: identificar el tipo de depósitos microbiológicos en lentes de contacto blando (LCB) usados. Materiales y Métodos: 100 lentes de contacto blandos de usuarios o de prueba de las ópticas, recolectándose 25 lentes para cada grupo de la FDA (Grupo1, 2, 3 y 4, según el contenido de agua e ionicidad del polímero). Los lentes se almacenaron por 20 días en sus estuches individuales hasta su estudio. A cada lente, se le realizó observación directa en lámpara de hendidura para clasificar depósitos visibles según criterio de RUDKO, examen directo con azul de lactofenol y cultivos microbiológicos. Resultados: según los grupos de la FDA, la contaminación microbiana en el grupo 1 fue del 80% (20/25) por bacterias y el 8% (2/25) por hongos. En el grupo 2, el 88% (22/25) presentó bacterias, el 4% (1/25) hongos. En el grupo 3, el 72% (18/25) presentó bacterias, el 20% (5/25) hongos. En el grupo 4, el 80% (20/25) presentó bacterias, el 12% (3/25) hongos. La presencia de hongos siempre fue concomitante con la de bacterias. Según los criterios de Rudko, se obtuvo que, de la categoría I, el 43,2% (17/37) tenía contaminación microbiológica por bacterias y/u hongos. El 100% de los lentes de categoría II (56/56) y categoría IV (7/7) estaban contaminados. El tipo de bacterias más frecuentemente identificadas en los cultivos, fueron bacilos y cocobacilos Gram negativos. Conclusiones: los bacilos Gram negativos fueron los microorganismos que más se encontraron en los lentes de contacto blando usados después de 20 días de almacenamiento.</p>
INTERPOLACIÓN POLINOMIAL, ALGUNAS TÉCNICAS Y SU PROGRAMACIÓN
Authors: Molano Molano Luis Alejandro 
Published: March 2016

<span>En este artículo se estudian algunas técnicas de interpolación polinomial e interpolación polinomial a trozos. Respecto a las primeras, se propone una demostración alternativa de su equivalencia. También se plantea una sencilla codificación de tales métodos en el software Matlab, usando comandos básicos y sin recurrir a rutinas de interpolación predefinidas por este software.</span><br /><strong>Palabras claves:</strong><span> Interpolación polinomial, interpolación polinomial a trozos, esplines cúbicos.</span><br /><strong>Abstract</strong><span>This article explores some polynomial interpolation and also piecewise polynomial interpolation methods. With respect to the first one, it is suggested an alternative demonstration of its equivalence. Also is posed a simple encoding of such methods in Matlab software, by using basic commands,without resorting to interpolation routines predefined by this software.</span><br /><strong>Keywords: </strong><span>Polynomial interpolation, piecewise polynomial interpolation, cubic splines.</span>
ESTABLECIMIENTO DE UN PROTOCOLO DE PROPAGACIÓN DE PHYSALIS PERUVIANA L. A PARTIR DE YEMAS AXILARES ADULTAS
Authors: Rache Cardenal Leidy Yanira , Pacheco Maldonado José Constantino 
Published: March 2016

<span>La uchuva tiene importancia ecológica, medicinal e industrial, y posee un alto potencial comercial porque su fruto es apetecido en el mercado nacional e internacional. Dichas características han originado una alta demanda de frutos que no alcanza a ser suplida con la oferta actual. En este trabajo se estableció un protocolo para la propagación de uchuva utilizando MS como medio de cultivo, semillas de frutos maduros y yemasaxilares de plantas adultas como explantes primarios. Después de la fase de establecimiento (30 días en MS sin reguladores y 60 días en MS con 0.05mg L-1 de AIB más 0.1 mg L-1 de BA) se cuantificó 100% de germinación de semillas y yemas viables que reactivaron su actividad meristemática. La tasa de multiplicación de los segmentos nodales procedentes de plántulas cultivadas en MS con 0.05mg L-1 de AIB fue de 4.5, y la de explantes nodales procedentes de microtallos desarrollados a partir de yemas axilarescultivadas en MS con 0.05mg L-1 de AIB más 0.1mg L-1 de BA, fue de 5.1. Durante el enraizamiento se cuantificó 100% de microtallos enraizados en MS sin reguladores de crecimiento. Después del endurecimiento en invernadero, el 95% de las plántulas fue viable y reactivó su crecimiento.</span><br /><strong>Palabras clave:</strong><span> Uchuva, plantas adultas, semillas, yemas axilares, cultivo in vitro.</span>
MICROWAVE AND ULTRASOUND ACTIVATION EFFECT ON CATIONIZATION OF CORN AND POTATO STARCHES
Authors: Muñoz Prieto Efrén , Palacios Alquisira Joaquín , Rius Alonso Carlos 
Published: March 2016

<strong>Abstract</strong><span>The aim of this study was to identify and compare the effect of ultrasound (US) and microwave (MW) irradiation on the assisted synthesis reaction to obtain cationic corn and potato starch derivatives, with cationizing agent (3-chloro-2-hydroxypropyl)-trimethylammonium chloride in solutionand in limited solvent conditions, known as a paste process. The starch derivatives were characterized by techniques, such as Fourier Transformed Infrared Spectroscopy, Thermo Gravimetric Analysis, Differential Scanning Calorimetry, Scanning Electron Microscopy and Atomic Force Microscopy.The application of both (MW) and (US) irradiation as energy sources permitted the shortening of the etherification time to minutes from the previously reported 18 hours of traditional heating. The results show the high potential of alternative energy sources to innovate and increase the efficiency of a technological starch derivatization process.</span><br /><strong>Keywords:</strong><span> Cationic starch, characterization, microwave, synthesis, ultrasound.</span>
Menyibak Kekerasan Simbolik Orientalisme
Authors: Iswahyudi Iswahyudi 
Published: March 2016

Recent order of world civilization seems to be constructed by Western civilization through project of orientalism which assumes East as the passive receiver of anything West actively offer; East is considered uncivilized, primitive, and dominated by myth and superstition. Based on the assumptions, West wants to inject modernity awareness into East cognitive sphere. But, East finds the want as a West tricky way to dominate East, a new kind of colonialism, and a hegemony.
West hegemony covered under orientalism—to use Pierre Boudeau’s term—is a kind of symbolic violence. The term refers to a violence insulted smoothly; it is differed from domination which refers more to physical violence. Orientalism symbolic violence can be traced through orientalists’ works on East that are scientifically and massively published. The violence should be wisely responded by East through creating balance discourse based on scientific and intuitive capabilities.
Recent order of world civilization seems to be constructed by Western civilization through project of orientalism which assumes East as the passive receiver of anything West actively offer; East is considered uncivilized, primitive, and dominated by myth and superstition. Based on the assumptions, West wants to inject modernity awareness into East cognitive sphere. But, East finds the want as a West tricky way to dominate East, a new kind of colonialism, and a hegemony.
West hegemony covered under orientalism—to use Pierre Boudeau’s term—is a kind of symbolic violence. The term refers to a violence insulted smoothly; it is differed from domination which refers more to physical violence. Orientalism symbolic violence can be traced through orientalists’ works on East that are scientifically and massively published. The violence should be wisely responded by East through creating balance discourse based on scientific and intuitive capabilities.
Fenomena Kelompok Sempalan Islam di Indonesia
Authors: Rofiq Ahmad Choirul 
Published: March 2016

Understanding about religious splinter groups in Indonesian context is mainly identified through their theological difference from that of muslims majority. Their theological beliefs and practices are considered deviant from the majority’s “true” theology and practices. It at least can be concluded from the fatwa of MUI which then become formal reference to most muslims people in Indonesia. Though the fatwa face many critiques from some muslims groups, especially liberal muslims activists, but it remain assumed as truth by the majority of Indonesian muslims.
There are many factors supporting the emergence of splinter groups in Indonesia. Beside the existence of some “advocates” such as liberal muslims activists and mass media, lack of law enforcement and the failure of religious leaders to educate their people to be more anticipative to the emergence of splinter groups. It is necessary to initiate open dialogues with followers of splinter groups, especially their leaders.
Seroprevalencia del Virus Linfotrópico Humano de células T tipo 1 (HTLV-1) en pacientes con tiroiditis autoinmune
Authors: Mori Ricardo , Sarria Carolina , Gonzalez Elsa , Gotuzzo Eduardo , Huachin Miluska , Sanchez Javier 
Published: March 2016

Objetivo:Describir la seroprevalencia de infección por HTLV-1 en pacientes con tiroiditis autoinmune. Material y Métodos: Estudio transversal realizado en pacientes con tiroiditis autoinmune que acudieron al consultorio de Endocrinología del Hospital Nacional Cayetano Heredia entre octubre del 2008 y enero del 2010. Se usó un cuestionario estructurado para obtener datos epidemiológicos y clínicos, paralelamente, se revisaron las historias clínicas para obtener datos de laboratorio. A los participantes se les tomó una muestra de sangre para el diagnóstico de HTLV-1 mediante prueba de ELISA y confirmación por Western Blot, previa firma de consentimiento informado. Resultados: Durante el período de estudio, se atendieron 285 pacientes con tiroiditis autoinmune. Se incluyeron 145 pacientes (50,9%); la edad media fue 48,1 ± 15 años y 135 (93,1%) fueron de sexo femenino. Tres pacientes tuvieron infección por HTLV-1, con una prevalencia estimada de 2,1% (IC 95%: 0-4,4%). Los seropositivos fueron de sexo femenino y tuvieron el diagnóstico de Enfermedad de Graves hipertiroidea. La frecuencia de infección por HTLV-1 en este grupo fue de 5% (3/60); IC 95%: 0-11%. No se encontró diferencia significativa entre los pacientes HTLV-1 positivos y negativos en cuanto a características demográficas, clínicas y de laboratorio. Conclusión: La prevalencia de infección por HTLV-1 en los pacientes con tiroiditis autoinmune fue similar a la prevalencia estimada para la población peruana en general.(Rev Med Hered 2010;21:180-186).
Hipotiroidismo inducido por Amiodarona. Reporte de caso.
Authors: Salinas Arce Jorge Luis , Pinto Valdivia Miguel , Solórzano Altamirano Paula 
Published: March 2016

Se describe el caso de una mujer de 57 años de edad, con diagnóstico de síndrome de Wolf Parkinson White, en tratamiento con amiodarona 200 mg/día; que acudió por presentar palpitaciones, fatiga y aumento de sueño. Al examen físico no se encontró bocio, pero los reflejos osteotendinosos estaban prolongados. Los exámenes auxiliares mostraron TSH elevado, T4 libre disminuido y anticuerpos antiperoxidasa tiroidea negativos. Se suspendió la amiodarona y se inició levotiroxina. Después de dos meses; los niveles de TSH y T4 libre eran normales y la paciente no presentaba molestias. La amiodarona está asociada a diversos efectos adversos que pueden limitar su uso. Entre estos efectos adversos, se describe el hipotiroidismo inducido, que se caracteriza por TSH elevado, T4 libre disminuido y síntomas inespecíficos como fatiga, intolerancia al frío y piel seca. El tratamiento de elección es la levotiroxina.
On the controllability of fractional dynamical systems
Authors: Balachandran Krishnan , Kokila Jayakumar 
Published: March 2016

Abstract
This paper is concerned with the controllability of linear and nonlinear fractional dynamical systems in finite dimensional spaces. Sufficient conditions for controllability are obtained using Schauder’s fixed point theorem and the controllability Grammian matrix which is defined by the Mittag-Leffler matrix function. Examples are given to illustrate the effectiveness of the theory.
Equivalent descriptions of a discrete-time fractional-order linear system and its stability domains
Authors: Ostalczyk Piotr 
Published: March 2016

Abstract
Two description forms of a linear fractional-order discrete system are considered. The first one is by a fractional-order difference equation, whereas the second by a fractional-order state-space equation. In relation to the two above-mentioned description forms, stability domains are evaluated. Several simulations of stable, marginally stable and unstable unit step responses of fractional-order systems due to different values of system parameters are presented.
Graph-based generation of a meta-learning search space
Authors: Jankowski Norbert 
Published: March 2016

Abstract
Meta-learning is becoming more and more important in current and future research concentrated around broadly defined data mining or computational intelligence. It can solve problems that cannot be solved by any single, specialized algorithm. The overall characteristic of each meta-learning algorithm mainly depends on two elements: the learning machine space and the supervisory procedure. The former restricts the space of all possible learning machines to a subspace to be browsed by a meta-learning algorithm. The latter determines the order of selected learning machines with a module responsible for machine complexity evaluation, organizes tests and performs analysis of results. In this article we present a framework for meta-learning search that can be seen as a method of sophisticated description and evaluation of functional search spaces of learning machine configurations used in meta-learning. Machine spaces will be defined by specially defined graphs where vertices are specialized machine configuration generators. By using such graphs the learning machine space may be modeled in a much more flexible way, depending on the characteristics of the problem considered and a priori knowledge. The presented method of search space description is used together with an advanced algorithm which orders test tasks according to their complexities.
Heuristic algorithms for optimization of task allocation and result distribution in peer-to-peer computing systems
Authors: Chmaj Grzegorz , Walkowiak Krzysztof , Tarnawski Michał , Kucharzak Michał 
Published: March 2016

Abstract
Recently, distributed computing system have been gaining much attention due to a growing demand for various kinds of effective computations in both industry and academia. In this paper, we focus on Peer-to-Peer (P2P) computing systems, also called public-resource computing systems or global computing systems. P2P computing systems, contrary to grids, use personal computers and other relatively simple electronic equipment (e.g., the PlayStation console) to process sophisticated computational projects. A significant example of the P2P computing idea is the BOINC (Berkeley Open Infrastructure for Network Computing) project. To improve the performance of the computing system, we propose to use the P2P approach to distribute results of computational projects, i.e., results are transmitted in the system like in P2P file sharing systems (e.g., BitTorrent). In this work, we concentrate on offline optimization of the P2P computing system including two elements: scheduling of computations and data distribution. The objective is to minimize the system OPEX cost related to data processing and data transmission. We formulate an Integer Linear Problem (ILP) to model the system and apply this formulation to obtain optimal results using the CPLEX solver. Next, we propose two heuristic algorithms that provide results very