bluuebunny/crossref_metadata_2025_split huggingface dataset:
Should the Board Have Control over Shareholder Proposals? Evidence from China
Authors: Zhou Bruce Bing 
Published: September 2023

Abstract
This Article empirically investigates the impacts of the board’s rejection of shareholder proposals on corporate value and the appropriate approach to regulation. The study utilizes a dataset of such incidents in China, where the board enjoys significant discretion in rejecting proposals due to the inadequacy of legal enforcement mechanisms. The findings provide suggestive evidence that the market reacts negatively to the announcement of proposal rejections, leading to a significant decline in a firm’s stock value. The most adverse effects are associated with rejections of director nomination proposals and blockholder-sponsored proposals. The inclusion of external legal opinions can help alleviate these adverse consequences. Additionally, the research uncovers that while the two stock exchanges in China demonstrate overall competence in identifying harmful rejection decisions, the effectiveness of their regulatory actions via comment letters is hindered by the inherent weakness of the soft law approach. Drawing upon these results, this study posits that the critical value of the shareholder proposal regime lies in providing a low-cost approach for dissident shareholders to replace poorly performing management and facilitating the constructive engagement of large shareholders and the management. Furthermore, it is recommended that China establish an SEC-style review process for board rejection decisions, with the exchanges as the ultimate authority permitting the exclusion of shareholder proposals.
An extrapolation method for improving the quality of tomographic images using multiple short-pulse irradiations
Authors: Yarovenko Ivan P. , Prokhorov Igor V. 
Published: September 2023

Abstract
This paper investigates the inverse problem for the non-stationary radiation transfer equation, which involves finding the attenuation coefficient using the data of serial irradiation of the medium with pulses of various durations.
In the framework of single and double scattering approximations, we obtain asymptotic estimates of the scattered radiation flux density for a short duration of the probing pulse.
We propose extrapolation procedures for the ballistic component of the radiation transfer equation solution using the data of multiple irradiations of the medium by pulsed radiation sources, which allows us to obtain approximate formulas for finding the attenuation coefficient.
The results of numerical experiments with a well-known digital phantom confirm the effectiveness of the extrapolation algorithm for improving the quality of tomographic images of scattering media.
Toxicity of Calophyllum soulattri, Piper aduncum, Sesamum indicum and their potential mixture for control Spodoptera frugiperda
Authors: Widayani Neneng Sri , Dono Danar , Hidayat Yusup , Ishmayana Safri , Syahputra Edy 
Published: September 2023

Abstract

Spodoptera frugiperda caused severe damage to the maize plant. Botanical insecticides are a choice to control this pest. This study aims to determine the ethanol extract of Calophyllum soulattri stem bark, methanol extract of Piper aduncum fruit, and Sesamum indicum oil, and their potential mixture for controlling S. frugiperda. The bioassays were carried out in laboratory conditions using second instar S. frugiperda larvae from mass rearing in the laboratory. A toxicity test was performed using the leaf-residual feeding method. The result showed that the mortality of S. frugiperda for C. soulattri is LC50 = 0.349% and LC95 = 3.256% and that for P. aduncum is LC50
= 0.530% and LC95 = 4.666%. S. indicum oil (at 10% concentration) only caused the mortality of S. frugiperda by 27.5%. Insecticide mixture can increase the toxicity of the insecticide. The observation mortality of S. frugiperda for C. soulattri and P. aduncum (1:2) extracts mixture were LC50 = 0.233% and LC95 = 0.808%. At the same time, C. soulattri extract dan S. indicum oil mixture (4:1) were LC50 = 0.268% and LC95 = 0.931%. The treatments with a single insecticide and their mixtures affected the biological activity of S. frugiperda by reducing the area of feed consumption, and the longer the larval development time, the lower the pupal weight of S. frugiperda. Our findings indicated that a mixture of C. soulattri and P. aduncum extract, then C. soulattri extract, and S. indicum oil could potentially develop as effective insecticide for controlling S. frugiperda.
Modeling the monkeypox infection using the Mittag–Leffler kernel
Authors: Khan Muhammad Altaf , Meetei Mutum Zico , Shah Kamal , Abdeljawad Thabet , Alshahrani Mohammad Y. 
Published: September 2023

Abstract
This article presents the mathematical formulation for the monkeypox infection using the Mittag–Leffler kernel. A detailed mathematical formulation of the fractional-order Atangana-Baleanu derivative is given. The existence and uniqueness results of the fractional-order system is established. The local asymptotical stability for the disease-free case, when

ℛ

0

<
1

{{\mathcal{ {\mathcal R} }}}_{0}\lt 1

, is given. The global asymptotical stability is given when

ℛ

0

>
1

{{\mathcal{ {\mathcal R} }}}_{0}\gt 1

. The backward bifurcation analysis for fractional system is shown. The authors give a numerical scheme, solve the model, and present the results graphically. Some graphical results are shown for disease curtailing in the USA.
High air humidity dampens salicylic acid pathway and NPR1 function to promote plant disease
Authors: Yao Lingya , Jiang Zeyu , Wang Yiping , Hu Yezhou , Hao Guodong , Zhong Weili , Wan Shiwei , Xin Xiu‐Fang 
Published: September 2023

AbstractThe occurrence of plant disease is determined by interactions among host, pathogen, and environment. Air humidity shapes various aspects of plant physiology and high humidity has long been known to promote numerous phyllosphere diseases. However, the molecular basis of how high humidity interferes with plant immunity to favor disease has remained elusive. Here we show that high humidity is associated with an “immuno‐compromised” status in Arabidopsis plants. Furthermore, accumulation and signaling of salicylic acid (SA), an important defense hormone, are significantly inhibited under high humidity. NPR1, an SA receptor and central transcriptional co‐activator of SA‐responsive genes, is less ubiquitinated and displays a lower promoter binding affinity under high humidity. The cellular ubiquitination machinery, particularly the Cullin 3‐based E3 ubiquitin ligase mediating NPR1 protein ubiquitination, is downregulated under high humidity. Importantly, under low humidity the Cullin 3a/b mutant plants phenocopy the low SA gene expression and disease susceptibility that is normally observed under high humidity. Our study uncovers a mechanism by which high humidity dampens a major plant defense pathway and provides new insights into the long‐observed air humidity influence on diseases.
Variabilidad genética del pez Lutjanus guttatus (Perciformes: Lutjanidae) mediante el uso de microsatélites en Costa Rica
Authors: Murillo Rios Alejandra 
Published: September 2023

Introduction: The rose spotted snapper (Lutjanus guttatus) is a highly consumed marine fish and of commercial interest in Costa Rica, under a strong fishing pressure that can affect the genetic diversity of the population creating problems related to inbreeding depression. Objective: To evaluate the genetic diversity of the spotted snapper (Lutjanus guttatus) population in Costa Rica using microsatellites. Methodology: Samples were collected from two locations (Golfo Dulce and Golfo de Nicoya) in 2019, and 44 individuals from each site were studied. DNA extraction and amplification of 10 microsatellites by PCR were carried out for subsequent genotyping for genetic diversity and population structure analysis. Results: The genetic diversity parameters show a high polymorphism, associated to a high number of alleles per locus, but low levels of observed heterozygosity in comparison to the expected heterozygosity (Ho = 0,774 and 0,800 and He = 0,948 and 0,954 for Gulf of Nicoya and Gulf Dulce, respectively). The study of population differentiation indicates that there is not enough evidence to ensure the two populations are different (FST = 0,00264, p > 0.05). The significant deviation from Hardy-Weinberg Equilibrium obtained indicated the possible presence of organisms in the population that does not come from the wild. Conclusions: The rose spotted snapper in Costa Rica shows high levels of genetic diversity, without evidence of differentiation in genetic subpopulations, that should be considered as a single panmictic population for fishery management purposes. The possible mix of individuals of a distinct origin found in the wild suggests the presence of organisms that come from a stock enhancement program or from commercial aquaculture carried out in the region. The use of genetic markers is recommended to keep track of the genetic characteristics of the wild population, to follow-up stock enhancement programs, and eventually, asses their effect.
Dürer nyitott ajtós címere és a korai híradások apai őseiről
Authors: Szentmártoni Szabó Géza 
Published: September 2023

Albrecht Dürer’s name first appeared in Jacob Wimpfeling’s book on German history, printed in 1505, in which the Alsatian author praised the then famous artist. In his book on the work of Martin Schongauer, printed in Nuremberg in 1515, the humanist Christoph Scheurl mentioned that Dürer’s father was born in Cula, near the town of Várad in Hungary. He was therefore the first, albeit with an incorrect town name, to make this biographical information public. Joachim Camerarius also mentioned in the preface to his book on the artist’s symmetry, published posthumously in 1532, that Dürer’s paternal lineage was from Pannonia. The only surviving manuscript is the calligrapher Johann Neudorfer’s biography of Dürer, in which the artist’s father’s biography is in agreement with his family records. This knowledge also reached the Hungarian humanist János zsámboky (Sambucus), who compiled a Latin and Greek epigram in praise of Dürer, mentioning the Pannonian origins of the artist’s ancestors. This information was published in Adam Melchior’s book on the life of German scholars, published in 1615, in the section about Dürer. The artist’s own notes were published by Joachim von Sandrart in 1675.From then on, this publication became the basis for biographies of Dürer. The present essay will now look at the reception of these family records in Hungary, with its pitfalls, especially the village of Ajtós and the Dürer name, as well as the related open-door coat of arms and the portrait of the artist’s father.
REALISMO DE MEDIO SIGLO EN MANUELA (1858) DE EUGENIO DÍAZ CASTRO: REVISIONES DE LA HISTORIA Y DE LA CRÍTICA LITERARIAS COLOMBIANAS
Authors: Rodríguez-Arenas Flor María 
Published: September 2023

Díaz Castro, basándose ideológicamente en el socialismo democrático y cristiano de los utopistas franceses, caracterizado por un humanitarismo profundo, que seguía un sector de los liberales, y recibiendo las influencias literarias de Balzac, de Dumas y de Eugène Sue, especialmente en Los misterios de París, adscribió Manuela al Realismo al representar vívidamente la cotidianidad neogranadina haciendo una cerrada defensa de los oprimidos; con esto buscaba soluciones para las injusticias y el desequilibrio general e intentaba crear conciencia para promover un cambio social.
EUGENIO DÍAZ CASTRO, SU COMPRENSIÓN DE LA DISTOPÍA REPUBLICANA Y EL GAMONALISMO: SU REPRESENTACIÓN EN MANUELA (1858)
Authors: Cobián-Klein Dora Luz 
Published: September 2023

Eugenio Díaz Castro, en Manuela, muestra el momento histórico y las situaciones de pugna y cambio que sufría la población de la Nueva Granada; cuyos habitantes se hallaban atrapados entre la sociedad agraria de la colonia y la naciente sociedad industrial de la nueva nación moderna. Representó situaciones y personajes que encuentran formas de inclusión y pertenecía dentro de ambos grupos mediante la manipulación, el abuso, la coerción, y el engaño para mostrar cómo los sueños republicanos utópicos son imposibles.
MUERTE Y RESURRECCIÓN DEL AUTOR. NUEVAS APROXIMACIONES AL ESTUDIO SOCIOLÓGICO DEL AUTOR
Authors: Zapata Juan Manuel 
Published: September 2023

Una treintena de años después de la proclamación de Barthes de la muerte del autor, éste parece reconquistar un lugar privilegiado en los estudios literarios abriendo nuevos horizontes para el análisis histórico-social de la literatura. A través de un recorrido sistemático por las nociones y herramientas teóricas más importantes de la nueva teoría de la función autorial, el presente artículo propone unos principios metodológicos para un estudio sociológico de la figura del autor.
ELEMENTOS DE SEMIÓTICA DEL ESPACIO EN EL RELATO “EL DESENCUENTRO” DE JAIRO MORALES HENAO
Authors: Sánchez Alba , Aguirre Carlos 
Published: September 2023

Al describir el espacio urbano en el relato “El desencuentro” de Jairo Morales Henao es susceptible de que se lleve a cabo una interpretación desde el punto de vista de la semiótica espacial. La propuesta literaria del texto apunta a una representación de un sector de Medellín en los años 50 y se vale para ello de algunos referentes tomados de la realidad, tales como calles y establecimientos públicos, lo que facilita una interpretación de la historia desde la ficción.
Don Quijote de la Mancha, caballero andante: el acto de investidura a partir de imágenes
Authors: Lucía Megías José Manuel 
Published: September 2023

RESUMEN

En este artículo se presenta un momento esencial en la vida de Don Quijote como caballero andandte: el acto de envestidura. Se comienza con un recorrido por los referentes literarios y caballerescos que permitan comprender este acto en su contexto, del cual se seleccionan dos momentos esenciales: la pescozada y el beso del oficiante, momentos que Cervantes reescribe en tono humorístico pero teniendo siempre en perspectiva el hipotexto caballeresco. Luego, a partir de algunas ilustraciones pertenecientes a diferentes ediciones del Quiijote (del siglo XVII al XIX) que abordan este momento clave, se pretende establecer las líneas maestras de los cambios de lectura del Quijote en sus tres primeros siglos de éxito y difusión.

ABSTRACT

This article presents a crucial moment in the life of Don Quixote as a knight errant: the act of investiture. It begins with a tour of the literary references of chivalry that allow to understand this act in context, from wich it is selected two key moments: the slap on the neck and the kiss of the officiant, moments that are rewritten in a humorous tone by Cervantes, always taking into perspective the chivalry hypotext. Then, after some illustrations from various editions of Don Quixote (from the XVII century to the XIX century), which address this significant moment, it is intended to establish guidelines of the reading changes of Don Quixote in its first three centuries of success and difussion.
GANADEROS, DOMADORES, COPLEROS Y CONUQUEROS: LA FRONTERA LLANERA EN LA VORÁGINE DE JOSÉ EUSTASIO RIVERA
Authors: Ortiz Rodríguez María de las Mercedes 
Published: September 2023

En la primera parte de La vorágine, el protagonista, Arturo Cova, introduce al lector al paisaje y la cultura de los llanos de Casanare, una región considerada como bárbara y al margen de la nación. El poeta valora positivamente elementos de la cultura llanera de origen hispánico, tales como el español regional, la música, las labores de ganadería y la doma, e incorpora así los Llanos a la nación como comunidad imaginada. Por el contrario, subestima importantes legados indígenas como la agricultura de conuco y el chamanismo. Los grupos amerindios vivientes, presentados como salvajes en la obra, permanecen excluidos
de la nación.
What can’t be ignored in service quality evaluation: Application contexts, tools and factors
Authors: Pérez Jorge Iván , Muñoz Giraldo Leandro 
Published: September 2023

This paper locates a Relevant Literary Space (RLS) about service quality evaluation, between 2006 and 2011, in order to characterise the following: service typologies, evaluation approaches, measurement models, reliability indexes, scales, quantitative techniques, factors (or quality dimensions) and likely variables affected by them. For this we use a systematic literature review methodology, taking the Scopus database to browse the research papers. The procedure was carried out through the plan-do-check-act cycle. The findings show that the e-service is the most studied typology; the hybrid models are the most used as well as the 7-point Likert scale and Cronbach’s Coefficient Alpha (average value of 0.87). Also, the findings show that the majority of the research community applies Structural Equation Modeling. From a holistic interpretation, a general structure of service quality is proposed. This article offers findings about the application of reproducible methods, open-to-scrutiny, and free of inclusion/exclusion biases of studies.
Modelling of breakthrough curve in water adsorption on silica gel and zeolite 4A
Authors: Rivera Guerrero Andrés , Rodríguez Niño Gerardo , Bejarano Jiménez Pedro 
Published: September 2023

This paper presents the development of a computational model to simulate the adsorption of water in a fixed bed, comparing the performance of zeolite 4A and silica gel type ‘A’. A variation of the Langmuir isotherm for zeolite 4A and Tóth isotherm for the silica gel were used; Linear Driving Force (LDF) model was used for adsorption rate with an overall coefficient temperature dependent. The model is composed of five partial differential equations associated with mole fraction of water, temperature, pressure, superficial velocity and water loading. Method of lines (MOL) was used with the function ODE15S of Matlab® to solve the system. As response variables the characteristic time interval of the breakthrough curve, asymmetry, maximum temperature and pressure drop, through a two-level factorial scheme were evaluated. Adsorbent was the most influential variable on the response variables. Zeolite has the highest rate of adsorption due to the shape of the adsorption isotherm, but has a lower water retention loading and increased resistance to mass transfer.
Physical and mechanical properties of Jatropha curcas seed grown up in Colombia
Authors: Betancur-Prisco Julio Cesar , Mira-Hernández Carolina , París-Londoño Luis Santiago 
Published: September 2023

Biodiesel from Jatropha curcas seeds is one promissory option in the biofuels field. This is a crop that develops in tropical countries which can grow on marginal soils with low irrigation and helps to control the erosion. This bush grows quickly and produces seeds with approximately 35% oil content and it does not compete with food crops. However, for the production of biodiesel from Jatropha to be sustainable and profitable it is required research and technological development at all stages of the production chain. This article shows the results of a research process that aims the determination of some significant physical and mechanical characteristics of Jatropha curcas seeds. This data are important, because they provide necessary information in the design of equipment and processes for Jatropha curcas oil production; especially, for mechanical oil extraction. As a result of the research process different properties were determined, for example: compression (2.8 mm) and energy (332 N.mm) required for fracture, average dimensions of seeds (length: 10.8 mm/width: 17.8 mm/thickness: 8.6 mm), fractions of shell (38%) and albumen (62%) in the seed, moisture content of seed (5.2%), oil content (29%), calorific value of shell (0.3 MJ/kg) and albumen (0.8 MJ/kg). All these variables are important parameters in the design of equipment, but also are useful to evaluate alternative uses for by-products of the oil extraction process, for example as energy source. Besides, the available information in Colombia about Jatropha is not much.
New relation to improve the speed and torque characteristics of induction motors
Authors: Mier-Quiroga Luis Antonio , Benítez-Read Jorge Samuel , López-Callejas Régulo , Segovia-de-los-Ríos José Armando 
Published: September 2023

Squirrel cage induction motors are employed in a wide variety of applications. Operating at constant speed is required in some applications, whereas variation of this parameter is required in others, as in the provision of mechanical energy to electrical vehicles. The performance of an electric vehicle is specified by the characteristics of the electric motor. The adequate relation between the voltage magnitude and the frequency of its power source makes the motor satisfy the electric vehicle requirements. The voltage magnitude is a function of the frequency of operation. If the V - f relation is adequate, the motor speed response could be improved. A new V - f relation that improves the speed response of the single squirrel cage induction motor is presented and is defined by a frequency factor. For motor speeds below the nominal value, the torque capacity of the motor is preserved with the proposed relationship.
Hydrogeochemical assessment and modeling of Morrosquillo Coastal Aquifer (Sucre-Colombia)
Authors: Betancur Vargas Teresita , Martínez Franco Diana Carolina , Herrera Parra Héctor Mario 
Published: September 2023

The Morrosquillo coastal aquifer is the main water supply source for the coastal area of the department of Sucre, Colombia. Antioquia University and the Corporación Autónoma Regional de Sucre –CARSUCRE-, water resource manager in this region, carried out a chemical assessment of the groundwater of this reservoir with the objective of validating the flow conditions and defining the model of hydrogeochemical evolution, which was validated using NETPATH inverse modeling software.
Design, construction and tests of an automatic prototype for composting
Authors: Longoria Ramírez Rigoberto , Oliver Salazar Marco Antonio , Torres Sandoval Julio , González Rubio Sandoval José Luis , Maximiliano Méndez Gerardo 
Published: September 2023

In this work the design, prototype construction and experimental validation of a composter is presented. The prototype performs the composting process of organic solid residues in an automatic form and the design is based on the treatment residues generated at home and on the composting proper process requirements to be carried out in a suitable way. This device has the property of processing, in a continuous way, 3 kg of solid organic residues per day. The residues introduced in the prototype remain inside for a 30-day period, time in which they are transformed into compost. The control of the prototype is achieved by a microcontroller, having the following functions; temperature control, air flow provision(aerobic decomposition), material stirringfor a uniform decomposition and material movement over the band (from the entrance up to the exit of the device) to achieve a continuous processing of the residues. The resulting tests provided a compost with a dun obscure color, without smells, and at room temperature. All of these conditions were indicators of a stable compost.