bluuebunny/crossref_metadata_2025_split huggingface dataset:
Assessment of perceived service quality using servqual mod-el: a case study of Pakistan international airline (PIA) in-flight hospitality
Authors: Ali Brohi Manzoor , A. Shaikh Aftab 
Published: October 2019

The service industry is rapidly growing worldwide with latest and sophisticated tools and strategies for satisfaction of their ultimate customers. Provision of an exceptional service is the lifeblood of airline survival, with the airlineâ€™s mid-flight operations being the most crucial fragment of the whole service encounter. This study hence quantifies and weighs the perceived service quality against the desired service quality expected by the customers of Pakistan International Airlines during flight operations, through the 5 main dimensions of SERVQUAL exemplified by the 30 service attributes. The main objective of this study is to find out gap between perceived service quality and expected service quality.This research is quantitative in nature, Factor Analysis and one sample T-Test were used for analysis of data and close-ended questionnaires were used to collect the data from sample of 120 passengers who travelled through PIA at least once is last 12 months. According to the results shown by the Factor Analysis, 8 components were retained or extracted out of 30 variables; all the variables have high correlation with components as overall correlation measured by Factor Analysis is 0.804 which is excellent in the practice. According to KMO and Bartlettâ€™s test, the sampling accuracy remained .857 which is quite good measurement. In addition to that, one sample T- test shows that variable Assurance scores 2.88 average mean perception out of 3.0 average mean expectation touches the expectations but not up to desire level of quality. However, other variables like responsiveness, Empathy, Reliability and Tangibility score 2.78, 2.67, 2.67, and 2.64 respectively.Average Mean Difference Gap (P-E) shows variable Assurance reveals low level of gap -0.12. However, this does not fill the quality gap of minimum 3.0 of Average Mean Expectation. This study exhibits tremendous service gap in other variables as Responsiveness -0.22, Empathy -0.33, Reliability -0.33 and Tangibility possesses -0.35 in terms of Average Mean Difference Gap.The necessity of this research study was deeply felt as a thin of number of passengers prefers PIA services. The service quality of PIA is diminishing with poor service strategies, insufficient facilities and lack of inflight hospitality measures for passengers; therefore, this research will help the key decision makers to identify the areas to improve, and take necessary remedial actions.Â Â
Translingual negotiation strategies in CMC contexts: English-medium communication in online marketplaces
Authors: Im Jae-hyun , Park G Yeon , Choe Hohsung 
Published: October 2019

Abstract
This study explores how interlocutors from different linguistic and cultural backgrounds employ the five translingual negotiation strategies of envoicing, recontextualization, interactional activity, entextualization and transmodality to communicate in online marketplaces. Informed by conversation analysis and translingualism, three computer-mediated communication (CMC) data sets were analyzed. Findings are as follows: 1) Korean speaker’s envoicing strategy was used to reveal his non-native English speaker status, which softened the impression of discourtesy. It set the co-constructed conversation stage where English speaking counterparts would be implicitly requested to speak more intelligibly; 2) recontextualization strategy was presented through emojis, emoticons, transliteration and translation to turn a business transaction into a friendly conversation between translingual speakers from different cultures where non-verbal cues of hospitality can be delivered in written forms in online one-on-one chats; 3) interactional strategy was observed when speakers did not share a culturally-bounded speech act of “conversation closers.” Misalignment was partially solved by mutual efforts to close their online conversation; 4) entextualization strategy was shown from Korean speakers’ asynchronous communication to confer on appropriate English expression by seeking help from other online community members; and, 5) transmodal strategy refers to the practice of shuttling among different on/offline modes and platforms to encode and decode languages, emotions, and cultural perspectives by depending on a wide range of resources and multiple strategies to accomplish meaningful interaction in online marketplaces. This study shows the translingual characteristics of English-medium online communication, suggesting an extended model of translingual meaning negotiation strategies in CMC contexts.
Inverse source problems for positive operators. I: Hypoelliptic diffusion and subdiffusion equations
Authors: Ruzhansky Michael , Tokmagambetov Niyaz , Torebek Berikbol T. 
Published: October 2019

AbstractA class of inverse problems for restoring the right-hand side of a parabolic equation for a large class of positive operators with discrete spectrum is considered. The results on existence and uniqueness of solutions of these problems as well as on the fractional time diffusion (subdiffusion) equations are presented. Consequently, the obtained results are applied for the similar inverse problems for a large class of subelliptic diffusion and subdiffusion equations (with continuous spectrum). Such problems are modelled by using general homogeneous left-invariant hypoelliptic operators on general graded Lie groups. A list of examples is discussed, including Sturm–Liouville problems, differential models with involution, fractional Sturm–Liouville operators, harmonic and anharmonic oscillators, Landau Hamiltonians, fractional Laplacians, and harmonic and anharmonic operators on the Heisenberg group. The rod cooling problem for the diffusion with involution is modelled numerically, showing how to find a “cooling function”, and how the involution normally slows down the cooling speed of the rod.
Hacia Una Tipología De Las Fórmulas De Saludo En La Historia Del Español
Authors: Zieliński Andrzej 
Published: October 2019

Resumen
El objetivo del presente artículo es analizar en la historia del español dos tipos de fórmulas de saludo, entendidas como unidades discursivas propias del acto de habla expresivo que sirven para abrir el canal comunicativo de las relaciones sociales.
A través de la búsqueda sistemática en textos del CORDE de hasta finales del siglo XIX, intentaremos hallar (i) los factores sociopragmáticos que desempeñan el papel más importante en cada tipo de saludo, (ii) el origen paradigmático de cada fórmula, (iii) su distribución sociocultural y las preferencias discursivas e informativas, y (iv) su nivel de predominio en determinadas épocas.
Early path nursing on neurological function recovery of cerebral infarction
Authors: Chen Ling , Han Zhena , Gu Junjie 
Published: October 2019

Abstract

Purpose
to study the application of path type early rehabilitation nursing in the nursing of patients with cerebral infarction and to explore its impact on the recovery of neurological function.

Methods
Patients with acute cerebral infarction in our hospital were randomly divided into two groups. The control group used conventional treatment methods. The experimental group used path type early rehabilitation care based on conventional treatment methods and observed the curative effect.

Results
The NIHSS scores in the experimental group were significantly lower than those in the control group, and the P value was less than 0.05, which was statistically significant.

Conclusion
Path type early rehabilitation nursing has a positive effect on the treatment of patients with cerebral infarction, which contributes to the recovery of neurological function of patients and is worthy of promotion in treatment.
Thrombin generation and fibrin clot structure after vitamin D supplementation
Authors: Blondon Marc , Biver Emmanuel , Braillard Olivia , Righini Marc , Fontana Pierre , Casini Alessandro 
Published: October 2019

Objective
Vitamin D deficiency is associated with increased risks of arterial and venous cardiovascular events. Hypothetically, supplementation with vitamin D may lead to a less prothrombotic phenotype, as measured by global coagulation assays and fibrin clot structure.

Methods
In this prospective cohort study, we enrolled adult outpatients attending the Primary Care Division of the Geneva University Hospitals with a severe vitamin D deficiency (25-hydroxyvitamin-D3 (25-OHD) <25 nmol/L), excluding obese patients or with a recent acute medical event. We evaluated changes in coagulation times, thrombin generation assay, clot formation and clot lysis time, 25-OHD and parathormone before and 1–3 months after cholecalciferol oral supplementation with one-time 300,000 IU then 800 IU daily. Paired t-tests with a two-sided alpha of 0.05 compared absolute mean differences.

Results
The 48 participants had a mean age of 43.8 ± 13.8 years. After supplementation, 25-OHD levels increased from 17.9 ± 4.6 nmol/L to 62.5 ± 20.7 nmol/L 6.4 ± 3.0 weeks after inclusion. Endogenous thrombin potential and thrombin generation peak values both decreased significantly (−95.4 nM × min (95%CI −127.9 to −62.8), P < 0.001; −15.1 nM (−23.3 to −6.8), P < 0.001). The maximum absorbance by turbidimetry decreased significantly (P = 0.001) after supplementation. There was no change in clot lysis time, coagulation times or plasminogen activator inhibitor-1 and homocysteine levels.

Conclusions
In severe vitamin D deficiency, a high-dose cholecalciferol supplementation was associated with a reduction in thrombin generation and an average decreased number of fibrin protofibrils per fibers and fibrin fiber size measured by turbidimetry. This suggests that severe vitamin D deficiency may be associated with a potentially reversible prothrombotic profile.
Genetic Architecture of Chilling Tolerance in Sorghum Dissected with a Nested Association Mapping Population
Authors: Marla Sandeep R , Burow Gloria , Chopra Ratan , Hayes Chad , Olatoye Marcus O , Felderhoff Terry , Hu Zhenbin , Raymundo Rubi , Perumal Ramasamy , Morris Geoffrey P 
Published: October 2019

Abstract
Dissecting the genetic architecture of stress tolerance in crops is critical to understand and improve adaptation. In temperate climates, early planting of chilling-tolerant varieties could provide longer growing seasons and drought escape, but chilling tolerance (&lt;15°) is generally lacking in tropical-origin crops. Here we developed a nested association mapping (NAM) population to dissect the genetic architecture of early-season chilling tolerance in the tropical-origin cereal sorghum (Sorghum bicolor [L.] Moench). The NAM resource, developed from reference line BTx623 and three chilling-tolerant Chinese lines, is comprised of 771 recombinant inbred lines genotyped by sequencing at 43,320 single nucleotide polymorphisms. We phenotyped the NAM population for emergence, seedling vigor, and agronomic traits (&gt;75,000 data points from ∼16,000 plots) in multi-environment field trials in Kansas under natural chilling stress (sown 30–45 days early) and normal growing conditions. Joint linkage mapping with early-planted field phenotypes revealed an oligogenic architecture, with 5–10 chilling tolerance loci explaining 20–41% of variation. Surprisingly, several of the major chilling tolerance loci co-localize precisely with the classical grain tannin (Tan1 and Tan2) and dwarfing genes (Dw1 and Dw3) that were under strong directional selection in the US during the 20th century. These findings suggest that chilling sensitivity was inadvertently selected due to coinheritance with desired nontannin and dwarfing alleles. The characterization of genetic architecture with NAM reveals why past chilling tolerance breeding was stymied and provides a path for genomics-enabled breeding of chilling tolerance.
Conciliación entre el Universo, el ser humano y la educación universitaria
Authors: Castillo Cedeño Ileana 
Published: October 2019

Recibido 12 de febrero, 2008 • Aprobado 10 de mayo, 2008

Esta reflexión surge de la experiencia vivida como estudiante y como académica universitaria, esperanzada en la idea de que la Educación Superior, tiene la oportunidad y el potencial para reencantar y vitalizar los procesos educativos formales desde el paradigma de la complejidad, que asume los vínculos ineludibles entre el ser humano y el Universo.
Fundamentos teóricos del Pensamiento complejo de Edgar Morin
Authors: Barberousse Paulette 
Published: October 2019

Ante lo que consideró la crisis del paradigma occidental de simplificación y disyunción, basado en la reducción y separación de los saberes, Edgar Morin planteó la emergencia de un nuevo paradigma de la complejidad, el cual intentaría articular y contextualizar las culturas científicas, las culturas de las humanidades y las culturas artísticas. Para llevar adelante tal propósito, se basó en la integración de ideas, conceptos y nociones provenientes de diversas fuentes teóricas.
El abordaje de la complejidad ha requerido de la resignificación dialéctica y creativa del legado de dichas teorías en una nueva síntesis que, al mismo tiempo que las integra, las eleva a un nivel cualitativamente distinto y original.
Las tecnologías de información y comunicación (TIC) desde una perspectiva social
Authors: Sánchez Duarte Esmeralda 
Published: October 2019

Recibido 11 de setiembre 2007 • Aprobado 20 de noviembre 2007

Este artículo analiza las potencialidades de las tecnologías de la información y comunicación a la luz de sus aportes en un contexto social y básicamente rural. La autora enfoca las ventajas de la apropiación social de este recurso, sus amenazas y riesgos, así como los ejes que deben valorarse cuando se pretende un impacto en el desarrollo social. Esta perspectiva permite el abordaje de la relación entre las TIC y preocupaciones sociales tan importantes como la desigualdad social, la equidad de género y la participación comunitaria, entre otras. El artículo finaliza planteando una reflexión sobre algunos desafíos en esta materia.
Hacia una visión holística de la educación universitaria: el amor y el caos un proceso creativo para el aprendizaje
Authors: Castillo Cedeño Ileana , Marín Gutiérrez Claudia 
Published: October 2019

Recibido 2 de setiembre de 2008 • Aprobado 23 de marzo de 2009 • Corregido 27 de abril de 2009

En este ensayo se plantea que si la educación superior quiere trascender, es necesario que desde ella se geste la idea de que el amor es el referente fundamental de la vida, y que es necesario potenciar esa esencia, más allá de lo externo y lo aparente o de temáticas aisladas dentro de planes de estudio que, muchas veces, se quedan en discursos y propuestas, y que lejos de germinar humanidad, llevan a su exterminio. Implica una visión de Amor universal que concibe el arte, como forma de expresión y de encuentro.
Utopía universitaria
Authors: Álvarez Margarita María , Maldonado Marilena 
Published: October 2019

Recibido 1 de abril de 2009 • Aprobado 29 de abril de 2009 • Corregido 1 de mayo de 2009 La universidad en este nuevo milenio está afrontando numerosos cambios, dilemas y retos, y debe prepararse para enfrentarlos conservando un pensamiento utópico. En este contexto, todos los actores de la universidad deberían insistir en el derecho a ensanchar y soñar futuro. Un pensamiento utópico nos permite imaginar una universidad diferente que guíe nuestras actividades como docentes, alumnos, administrativos y autoridades, en aras de lograr la universidad soñada por todos. Esto nos motivó a plantear nuestra utopía universitaria, como un aporte a la reflexión sobre los temas que involucran la universidad.
La identidad nacional en tiempos de globalización
Authors: Arias Sandoval Leonel 
Published: October 2019

Recibido 30 de julio de 2008 • Aceptado 29 de abril de 2009 • Corregido 05 de junio de 2009

La identidad nacional es un proceso histórico y geográfico, dinámico y en constante transformación, en otras palabras: está sujeta al cambio. Es construida por los individuos y diferentes grupos sociales que nacen o viven en un territorio mediante el discurso ideológico homogenizador y reproductor del imaginario nacional y, por otra parte, la influencia cultural expresada por las interrelaciones con otros países, la cual se ha acelerado por medio del fenómeno de la globalización. Este último aspecto tiene un impacto profundo no sólo en el campo económico, sino, también, en el intercambio de información, ideas, valores y comportamientos que asimilan las personas por medio de conductas, símbolos y significados que tienen que ver con la imitación de modelos culturales foráneos. Pero existe un punto en común en el contexto de este ensayo, y es entender que estamos ante un proceso evolutivo, dinámico y complejo, que forma parte de los procesos de socialización que vinculan las prácticas cotidianas de los individuos, mediante la diversidad y el intercambio cultural.
Currículo en el nivel preescolar costarricense: El Ciclo Materno Infantil (CMI)
Authors: Chaves Álvarez Ana Lucía 
Published: October 2019

Recibido 20 de abril de 2009 • Aprobado 14 de setiembre de 2009 • Corregido 15 de octubre de 2009

Este artículo aborda la conceptuación y la descripción del Ciclo Materno Infantil como parte del nivel de preescolar del sistema educativo formal costarricense. Con el propósito de tener una visión más amplia de este Ciclo, se hace un repaso por el concepto de currículo, así como de los elementos que lo conforman, y, luego, se detallan específicamente los aspectos relacionados con el currículo de preescolar costarricense del Ciclo Materno Infantil, tomando como punto de partida el Programa de Estudio que se elaboró para atender este Ciclo en el sistema educativo de Costa Rica.
Evaluation of the hypothesis of the Monster of Troy vase as the earliest artistic record of a vertebrate fossil
Authors: Monge-Nájera Julián 
Published: October 2019

The Monster of Troy, depicted in a 6th Century BC Corinthian vase, has been proposed to be the earliest artistic record of a vertebrate fossil, possibly a Miocene giraffe (Samotherium sp.). The purpose of the paper was to analyze the giraffe hypothesis using four approaches: a double-blind random design in which 78 biologists compared the vase skull with Samotherium and several reptiles; an informed survey of 30 art and science students who critically assessed the hypothesis based on images of candidate species; an objective computerized mathematical comparison of the images; and a detailed morphological comparison of the skulls. All of the participants rejected the giraffe hypothesis. The types of eyes and teeth unambiguously discard a mammal, whether fossil or living, as the model. The model was most likely an extant carnivorous reptile of the Varanidae family.
Free Convection MHD Flow with Thermal Radiation from an Impulsively-Started Vertical Plate
Authors: Palani G. , Abbas I. A. A. 
Published: October 2019

This paper investigates the combined effects of magnetohydrodynamics and radiation on free convection flow past an impulsively started isothermal vertical plate with Rosseland diffusion approximation. The fluid considered is a gray, absorbingemitting radiation but a non-scattering medium, with approximate transformations the boundary layer governing the flow are reduced to non-dimensional equations valid in the free convection regime. The dimensionless governing equations are solved by the finite element method.
Effects of Viscous and Joules Dissipation on MHD Flow, Heat and Mass Transfer past a Stretching Porous Surface Embedded in a Porous Medium
Authors: Anjali Devi S. P. P. , Ganga B. 
Published: October 2019

This paper investigates the influence of both viscous and joules dissipation on the problem of magnetohydrodynamic flow past a stretching porous surface embedded in a porous medium. Analytic solutions of the resulting nonlinear non-homogeneous boundary value problem in the case when the plate stretches with a velocity varying linearly with distance, expressed in terms of confluent hypergeometric functions, are presented for the case of prescribed surface temperature. Numerical calculations have been carried out for various values of suction parameter, magnetic field, Prandtl number, Eckert number and Schmidt number. The results show that increases in magnetic parameter decrease both the dimensionless transverse velocity, longitudinal velocity and also the skin friction coefficient. Also, formation of thin boundary layer is observed for higher value of magnetic parameter.
Further Comparisons of Finite Difference Schemes for Computational Modelling of Biosensors
Authors: Britz D. , Baronas R. , Gaidamauskaitė E. , Ivanauskas F. 
Published: October 2019

Simulations are presented for a reaction-diffusion system within a thin layer containing an enzyme, fed with a substrate from the surrounding electrolyte. The chemical term is of the nonlinear Michaelis-Menten type and requires a technique such as Newton iteration for solution. It is shown that approximating the nonlinear chemical term in these systems by a linearised form reduces both the accuracy and, in the case of second-order methods such as Crank-Nicolson, reduces the global error order from O(δT2) to O(δT). The first-order methods plain backwards implicit with and without linearisation, and Crank-Nicolson with linearisation are all of O(δT) and very similar in performance, requiring, for a given accuracy target, an order of magnitude more CPU time than the efficient methods backward implicit with extrapolation and Crank-Nicolson, both with Newton iteration to handle the nonlinearity. Steady state computations agree with expectations, tending to the known solutions for limiting cases. The Crank-Nicolson method shows some concentration oscillations close to the outer layer boundary but this does not propagate to the inner boundary at the electrode. The backward implicit methods do not result in such oscillations and if concentration profiles are of interest, may be preferred.
Estimation of Some Proportion in a Clustered Population
Authors: Krapavickaitė D. 
Published: October 2019

The aim of this paper is to show that the traditional design-based estimator for the proportion of population units, associated with at least one subunit having an attribute of interest using the two-stage sampling design, is biased. We face such a situation in the Adult Education Survey of official statistics of the European countries when estimating the share of individuals in non-formal education, involved in job-related learning activities. The alternative design and model-based estimators are proposed.