bluuebunny/crossref_metadata_2025 huggingface dataset:
Buenas prácticas internacionales en materia de adjudicación de proyectos APP y su comparativo en México, bloque I, 2017
Authors: Castro Coria Eva Grissel , Gómez Monge Rodrigo
Published: February 2023

Este estudio identifica en los ámbitos práctico y normativo, si existen buenas prácticas internacionales aplicadas en los procesos de licitación, especialmente en el Bloque I del Programa Estrategia Integral de Impulso a los Proyectos de APP. Para ello se utilizó la guía Concessions for Infrastructure (Kerf et al., 1998), de la cual se identificaron los pasos idóneos para implementar un proceso de licitación, se extrajeron los elementos por considerar de cada uno, se normalizaron los resultados en una escala de 0-1 y, por último, se compararon tanto práctica como normativamente. Con base en lo anterior se elaboró un biograma que resultó del puntaje obtenido para determinar las áreas de oportunidad. La información para el análisis práctico se extrajo de la página oficial del Programa Estrategia Integral de Impulso a los Proyectos de APP y de la plataforma CompraNet, y para el análisis normativo, de la Ley de Asociaciones Público-Privadas, la Ley de Obras y Servicios Relacionadas con las Mismas y la Ley de Adquisiciones, Arrendamientos y Servicios del Sector Público.
Códigos JEL: K1, K12, C7, C79
Recibido: 11/11/2020. Aceptado: 21/12/2021. Publicado: 01/06/2022.
International Trade and Maritime Transport in North America: An Analysis of Productivity and Foreign Direct Investment
Authors: Cortés-Medina María Guadalupe , Espitia Moreno Irma Cristina , García-Orozco Dalia , De la Torre-Torres Oscar V.
Published: February 2023

Port logistics activity is a vital element in foreign trade. In a globalized environment that demands greater competitiveness, trade agreements and synergies between trade blocs through maritime transport allow commercial development between economies. This research analyzes the relationship between international trade through seaports and investment in the countries that make up the North American Free Trade Agreement (NAFTA) from 1997 to 2017. An econometric panel data model is used to measure the relationship between the variables, and unit root tests, cointegration tests (Kao and Fisher-Johansen tests), and heterogeneous causality tests (Hurlin and Dumitrescu test) are performed. The results show a positive relationship between trade and productivity, as well as a positive relationship between commerce and direct foreign investment; hence, an increase in investment causes a growth in international trade between Mexico, the United States, and Canada. JEL Codes: F40 Received: 18/04/2022.  Accepted: 26/07/2022.  Published: 01/12/2022.
Estudio bibliométrico de la innovación y mercadotecnia de servicios en la industria de restaurantes
Authors: Monroy Ceseña Mauro Alejandro
Published: February 2023

El principal objetivo de esta investigación es establecer los más importantes avances e investigaciones relacionadas con la disciplina de la innovación y mercadotecnia de servicios a través de la producción científica dentro de la industria de restaurantes por medio de un estudio bibliométrico de la literatura en el que se relacionó la incidencia de los tópicos innovación y mercadotecnia de servicios dentro de esta particular industria. La metodología utilizada fue una revisión sistemática que se centró particularmente en el análisis de la literatura en donde fue posible incluir investigaciones realizadas en los ámbitos empírico y retrospectivo. Los artículos fueron extraídos de la base de datos LENS.ORG. Se concluye que es fundamental entender los procesos relacionados con la innovación, transformando las ideas en hechos, y los hechos en posicionamiento de mercado. Innovar es ser capaz de visualizar todas aquellas situaciones de una forma en que se puedan hacer cosas más rápidas, más económicas y sencillas. El estudio de la mercadotecnia presentó marcos estratégicos en la búsqueda continua tanto del servicio ofertado como de la satisfacción percibida por los clientes.
Códigos JEL: C14, M31
Recibido: 17/05/2022. Aceptado: 14/09/2022. Publicado: 01/12/2022.
Estudio de la calidad de vida laboral y los efectos colaterales de COVID-19 en los trabajadores de Universidades del estado de Sonora, México
Authors: Quiroz Campas Celia Yaneth , Hadar García Esmeralda , Galván Corral Alberto , Hinojosa Rodríguez Carlos Jesús
Published: February 2023

Esta investigación tiene como objetivo conocer el nivel de calidad de vida laboral y los efectos colaterales del COVID-19 en los trabajadores de universidades del estado de Sonora. Se empleó un diseño metodológico mixto, que analizó tres dimensiones dentro del instrumento: calidad de vida laboral, gestión organizacional y desempeño organizacional, con el apoyo de 419 trabajadores que participaron de las diferentes universidades. Se obtuvieron como resultados las valoraciones de las dimensiones, las cuales determinan que la variable de calidad de vida es del 3.71, lo cual es favorable, mientras que el nivel de afección colateral por la pandemia es de 3.5, lo cual no es favorable, debido a que en la nueva modalidad a distancia no se promueven espacios para interactuar con el personal en actividades diferentes a las del trabajo cotidiano, no se cuenta con los recursos, equipos, herramientas ni materiales necesarios para el desempeño de las actividades adecuadamente; así que ante esta situación, los colaboradores se han visto en la obligación de adaptarse a nuevas formas de trabajo con los desafíos que esto conlleva. 
Códigos JEL: 65, I3 y 51
Recibido: 15/09/2022. Aceptado: 13/10/2022. Publicado: 01/12/2022.
Responsabilidad social empresarial: un análisis desde la sostenibilidad
Authors: Gutierrez-Ayala Jhancarlos
Published: February 2023

En el marco de la Agenda para el Desarrollo Sostenible promulgada por la Organización de Naciones Unidas (ONU, 2015), y específicamente en la propuesta de los 17 Objetivos de Desarrollo Sostenible (ODS), se destacan las empresas como uno de los actores fundamentales en la acción participativa que permitirá dar cumplimiento a las tres líneas de acción que la sustentan: acabar con la pobreza, proteger el planeta y mejorar las condiciones de vida de las personas en el mundo (ONU, 2015).
El papel de las empresas en la consecución de los objetivos se manifiesta expresamente; por ejemplo, el objetivo 12 ¾Consumo y producción responsables¾  se define como “hacer más y mejor con menos (…) aumentar la eficiencia de los recursos y promover estilos de vida sostenibles (…) y contribuir sustancialmente a la mitigación de la pobreza”; tareas claramente aplicadas a lo que Schumpeter llamaría la acción empresarial, ya que son las firmas las encargadas de desarrollar los sistemas de producción que, mediante el uso de factores productivos, les permitan la consecución de bienes o servicios definidos como mercancías.
Además de la condición asociada a la técnica de producción, los ODS plantean la relación entre el ámbito social y las empresas como un eje de acción que permita establecer, primero, mejores condiciones de vida a las comunidades, y segundo, escenarios de fortalecimiento de las mismas firmas. Esto lleva a que las empresas consideren no solo los indicadores económicos o financieros como referentes de su desempeño o acción, pues es necesario considerar la relación entre empresas y comunidades; en este contexto, la responsabilidad social empresarial (RSE) aparece como el marco en el cual se evalúa la forma en que una empresa puede impactar de forma directa a una comunidad.
The Holocaust in Zolochiv, With a Foreword by Roald Hoffmann
Authors: Mayer Shlomo
Published: February 2023

Die ukrainischsprachige Broschüre entstand 2018 im Rahmen eines Shoah-Gedenkprojektes in der westukrainischen Kleinstadt Zolociv/Solotschiw (Zloczów). Die 1. Auflage der Gedenkbroschüre bestand aus 300 Exemplaren. Sie besteht aus einem Vorwort (in ukrainischer Übersetzung und im englischen Original) des in Zloczów geborenen Shoah-Überlebenden und späteren amerikanischen Nobelpreisträgers (in Chemie) Prof. Dr. Roald Hoffmann, sowie aus einer neuen ukrainischen Übersetzung einer bestehenden englischen Übersetzung (https://www.jewishgen.org/yizkor/Zolochiv/Zolochiv.html#TOC) des jiddischsprachigen Memorbuches "Der untergang fun Zlotshev" (The Fall of Zloczów) von Szlojme Mayer (Munich: Farlag Ibergang, 1947). In seinem Memorbuch berichtet der Verfasser über die deutschen Verbrechen gegen die jüdische Bevölkerung, aber auch über ukrainische Kollaboration im Holocaust. Roald Hoffmann reflektiert in seinem Vorwort über ukrainisch-jüdische Beziehungen in Vergangenheit und Gegenwart und berichtet kurz über sein Überleben im Holocaust mit der Hilfe von Ukrainern.
Policy Brief zum vierten Zwischenbericht zur wissenschaftlichen Evaluation des Bundesprogramms „Sprach-Kitas: Weil Sprache der Schlüssel zur Welt ist“ : Ergebnisse zur nachhaltigen Wirkung des Bundesprogramms
Authors: Anders Yvonne , Kluczniok Katharina , Bartels Kai Caroline , Blaurock Sabine , Grimmer Julia , Große Christiane , Hummel Theresia , Kurucz Csaba , Resa Elisabeth , Then Sebastian , Wieduwilt Nadine , Roßbach Hans-Günther
Published: February 2023

Kurzzusammenfassung des Policy-Briefs zum vierten Zwschenbericht des Bundesprogramms "Sprach-Kitas: weil Sprache der Schlüssel zur Welt ist" mit den Ergebnissen zur nachhaltigen Wirkung des Bundesprogramms.
Occurrence and distribution of several endocrine-disrupting chemicals in a chemical park: exploring the health risks of multiple pollutants
Authors: Zhu Qingqing , Fang Minrui , Wang Xin , Liao Chunyang , Jiang Guibin
Published: February 2023

Triclosan (TCS), triclocarban (TCC), parabens, bisphenols (BPAs), tetrabromobisphenol A and its alternatives (TBBPAs), and phthalate esters (PAEs) are typical endocrine-disrupting chemicals (EDCs), which have received increasing attention due to their potential adverse effects on ecological and human health. Human exposure to these EDCs is widespread. However, data regarding the distribution and related health risks of multiple EDCs in chemical parks are relatively scarce. In this study, 28 EDCs were determined in surface soil, sediment, and sludge samples collected from the Yangkou Chemical Industrial Park (Jiangsu, China). With the exception of TBBPAs, the distributions of Σ(TCS + TCC), Σ6parabens, Σ8BPAs, and Σ9PAEs in environmental media were as follows: sludge > sediment ≥ soil. No obvious differences were found regarding the concentrations of Σ9PAEs within the soil samples. Higher levels of Σ(TCS + TCC) (186 μg kg-1 dw) and Σ3TBBPAs (154 μg kg-1 dw) were found in the soil near a chemical manufacturer and the main sewage outlet of a wastewater treatment plant, respectively. The non-carcinogenic risks of EDCs from soil were estimated, and the risk levels were found to be a few orders of magnitude lower than the reported reference dose (RfD) values. The hazard indexes for all the samples were smaller than one, suggesting that the chemical industrial park posed a low risk to the workers. Additionally, the mass inventories of Σ(TCS + TCC), Σ6parabens, Σ8BPAs, Σ3TBBPAs, and Σ9PAEs were estimated to be 507, 90.6, 133, 20.7, and 1090 kg, respectively. These findings help to establish baseline concentrations for EDCs in soil, sediment, and sludge in a chemical industrial park.
Fast algorithm for computation the parameters of s-boxes that determine the security of SNOW 2.0-like stream ciphers against correlation attacks over extension fields
Authors: Poremskyi Mykhailo
Published: February 2023

The security of SNOW 2.0-like stream ciphers against a wide class of correlation attacks can be evaluated by values of some numerical parameters of s-boxes used in these ciphers. We propose a fast algorithm that computes the values of these parameters. The proposed algorithm is based on the fast Hadamard transform and has significantly lower time complexity compared to the previously known ones. We also show experimentally, using the Monte Carlo method, that for most random 8 x 8 s-boxes the values of the considered parameters ensure an appropriate security level of SNOW 2.0-like stream ciphers against known correlation attacks.
The Modification of the Quantum-Resistant AJPS-1 Cryptographic Primitive
Authors: Yadukha Dariya
Published: February 2023

In recent years, quantum-resistant cryptography has been steadily developing, which is due, in particular, to the post-quantum cryptosystems competition of the National Institute of Standards and Technology (NIST), which has been ongoing since 2017. One of the participants in the first round of the competition is the AJPS cryptosystem. In this work, we propose the modification of the AJPS cryptosystem for bit-by-bit encryption by changing the numbers class used in the cryptosystem as a module. This modification increases the variability of the cryptosystem parameters.
Vulnerability detection in the network traffic flow of the RADIUS protocol based on the object-oriented model
Authors: Galchynsky Leonid , Murtazina Amina
Published: February 2023

The RADIUS protocol was analyzed from the point of view of its functionality and security. The internal structure and the division into functions were shown. There were described the structure of the RADIUS network, the functions of the network access server or NAS, and the RADIUS server. The advantages of the centralized secure data processing technology based on the RADIUS protocol were shown. Mechanisms of secure processing of requests at the authentication and authorization stage were described. Sources and types of protocol vulnerabilities were studied and possible attack scenarios were identified. The relevance of creating models for evaluating the vulnerabilities of the RADIUS protocol was substantiated, and the methodology for building the model was chosen. An object-oriented model of the RADIUS protocol has been developed. A software application was developed and various attacks on the RADIUS protocol were tested. A number of potential vulnerabilities have been identified.
Basic concepts, approaches and fundamentals of cyber threat intelligence
Authors: Makovska Maryna , Kozlenko Oleh
Published: February 2023

This article is designed to introduce readers to Cyber Threat Intelligence (CTI). Various Threat Hunting (TH) techniques and sources of information about threats were mentioned. Commercial tools and open source software for cyber threat hunting are also described.
On Multivariate Algorithms of Digital Signatures Based on Maps of Unbounded Degree Acting on Secure El Gamal Type Mode
Authors: Ustimenko Vasyl
Published: February 2023

Multivariate cryptography studies applications of endomorphisms of K[x1 x2, ..., xn] where K is a finite commutative ring given in the standard form xi →f1 (x1, x2,..., xn), i=1, 2,..., n. The importance of this direction for the constructions of multivariate digital signatures systems is well known. Close attention of researchers directed towards studies of perspectives of efficient quadratic unbalanced rainbow oil and vinegar system (RUOV) presented for NIST postquantum certification. Various cryptanalytic studies of these signature systems were completed. During Third Round of NIST standardisation projects ROUV digital signature system were rejected. Recently some options to seriously modify theses algorithms as well as all multivariate signature systems which alow to avoid already known attacks were suggested. One of the modifications is to use protocol of noncommutative multivariate cryptography based on platform of endomorphisms of degree 2 and 3. The secure protocol allows safe transfer of quadratic multivariate map from one correspondent to another. So the quadratic map developed for digital signature scheme can be used in a private mode. This scheme requires periodic usage of the protocol with the change of generators and the modification of quadratic multivariate maps. Other modification suggests combination of multivariate map of unbounded degree of size O(n) and density of each fi of size O(1). The resulting map F in its standard form is given as the public rule. We suggest the usage of the last algorithm on the secure El Gamal mode. It means that correspondents use protocols of Noncommutative Cryptography with two multivariate platforms to elaborate safely a collision endomorphism G: xi → gi of linear unbounded degree such that densities of each gi are of size O(n2). One of correspondents generates mentioned above F and sends F+G to his/her partner.

The security of the protocol and entire digital signature scheme rests on the complexity of NP hard word problem of finding decomposition of given endomorphism G of K[x1,x2,...,xn] into composition of given generators 1G, 2G, ...tG, t>1 of the semigroup of End(K[x1,x2,...,xn]). Differently from the usage of quadratic map on El Gamal mode the case of unbounded degree allows single usage of the protocol because the task to approximate F via interception of hashed messages and corresponding signatures is unfeasible in this case.
Effects of biodynamic preparations 500 and 501 on vine and berry physiology, pedology and the soil microbiome
Authors: Rienth Markus , Lamy Frederic , Chessex Clément , Thierry Heger
Published: February 2023

In the pursuit of increasing sustainability, climate change resiliency and independence of synthetic pesticides in agriculture, the interest of consumers and producers in organic and biodynamic farming has been steadily increasing in recent decennia. This is, in particular, the case for the vitivinicultural industry in Europe, where more and more producers are converting from organic to biodynamic farming. However, clear scientific evidence showing that biodynamic farming improves vine physiology, vine stress resilience, soil quality related parameters and berry or wine quality is still lacking, despite the growing number of research studies on this issue. To investigate whether biodynamic farming methods have an impact on vine physiology, berry quality and the environment, a five-year experiment was set up in 2016 in a commercial vineyard in Switzerland. In this trial, the two main biodynamic preparations 500 and 501 were applied and compared to an organic control. Vine and berry physiology (net photosynthesis, vigour, sugar, organic acids, berry weight, yield) were assessed from 2016 to 2020. Soil physical properties (soil bulk density, water holding capacity, soil structural stability, macropore volume) were analysed from 2017-2020, and, soil fungal communities were analysed by DNA-sequencing in the last year of the experiment (2020). None of the parameters related to vine and berry physiology showed significant differences throughout the duration of the experiments, except photosynthesis, which was higher when biodynamic preparations were applied at one time point. Similarly, the soil’s physical properties were not influenced by the application of the two biodynamic preparations in all years. Regarding the soil microbiome, the preparations 500 and 501 neither led to significant differences in fungal diversity nor seemed to impact the soil fungal communities. The present study confirms previous findings of different research teams that did not observe significant differences between organic and biodynamic farming methods in terms of observed soil and vine parameters.
Mecánica y azar en la poesía
Authors: Ruiz Pérez Pedro
Published: February 2023

Se recogen algunas consideraciones en torno a las relaciones establecidas en la poesía moderna y contemporánea entre los principios de orden y regla, por una parte, y de azar, por otra. Se atiende de modo particular a los orígenes de esta dicotomía y a su desarrollo en !a “tradición de la ruptura”, deteniéndose en algunos casos y aspectos de la poesía de carácter experimental y situada en los límites de la racionalidad del lenguaje.
Diotima de Hölderlin
Authors: MIALDEA BAENA Antonio J.
Published: February 2023

: El trabajo versa sobre la figura del escritor alemán Hölderlin, uno de los poetas germanos más representativos del Romanticismo alemán, y de su conocido poema Diótima, basado en el persona real de la mujer del banquero Gontard, en cuya casa el poeta ejerció las labores de preceptor.
Mitología y subversión de valores en los discursos diogénicos de Dión de Prusa
Authors: URBÁN Ángel
Published: February 2023

En los cuatro discursos que tienen como verdadero protagonista a Diógenes el Cínico, Dión de Prusa {Or. 6 y 8-10) se sirve con insistencia de la mitología griega, interpretando con audacia el significado profundo de algunos importantes personajes. Llama la atención la interpretación subversiva que hace de estos, en drástico contraste con la interpretación más común, tradicional y casi oficial, la única prácticamente que ha conocido el pueblo de parte de sus educadores. Esta doble interpretación enfrenta la misión educadora de Dión, como inquietante predicador errante, con la burguesa paideia de los “sofistas” de su tiempo.
El psicoanálisis existencial de Sartre y su aplicación en Baudelaire
Authors: GARCÍA PEINADO Miguel A.
Published: February 2023

Primera aplicación del psicoanálisis fenomenológico sartriano al poeta del siglo XIX, llevada a cabo en 1947, partiendo del lugar común tan reiterado al hablar de Baudelaire: "Il n'a pas eu la vie qu'il méritait". En su ensayo Sartre demuestra que el poeta, desde las segundas nupcias de su madre, opta por ser el propio verdugo. Para ello, el escritor se basa en cinco premisas fundamentales: lucidez dolorosa, hastío, conformismo moral, satanismo y gusto por el dolor.
La confrontación con el Socialismo en la literatura de Monika Maron: Stille Zeile seclts
Authors: HINOJOSA PICÓN Olga
Published: February 2023

En la siguiente exposición pretende mostrarse la postura que Monika Maron adopta en su escritura respecto a la doctrina socialista de la República Democrática Alemana. Con este objetivo, tomando como ejemplo su tercera novela, Stille Zeile Sechs, y tras una breve introducción a la evolución política de la autora, se presenta no sólo el conflicto interior de la protagonista y su oposición a un régimen autoritario que anula el individualismo, sino también las consecuencias que pueden derivar de dicho enfrentamiento.
El abismo de la duración infinita y el acontecimiento. La elegía II de Garcilaso de la Vega
Authors: MADELPUECH-TOUCHERON Florence
Published: February 2023

La Elegía II es una obra original de la poética garcilasiana que centra su reflexión estética en la duración ilimitada, pura. Abriendo nuevos cauces, la escritura designa el acontecimiento como el elemento imprescindible, clave, que construye la temporalidad y le da sentido. En efecto, la ausencia de accidente hunde la voz poética en un tiempo que se extiende sin fin y que parece detenido. Salir de lo que no tiene medida es entonces la preocupación única de la voz y lo logra. Pues la elegía es de por sí el acontecimiento limitado, encerrado en el espacio que media entre un principio y un final. Y los lectores presenciamos su devenir que conoce una duración libre, su duración, que no es sino el poder de la escritura.
Reivindicación feminista en la poesía inglesa de la primera mitad del siglo XVIII
Authors: VELLA RAMÍREZ Mercedes
Published: February 2023

Este trabajo versa sobre el estudio y la traducción al castellano de cuatro de los poemas de corte feminista más importantes presentes en la literatura inglesa de la primera mitad del siglo XVIII. En él se analizan y traducen poemas de Lady Mary Chudleigh, Sara Fyge Egerton, Anne Kingsmill Finch y Mary Masters poniendo de manifiesto que la gran rebelión feminista de la segunda mitad del siglo tuvo en ellas un claro precedente.
La lexicografía regional andaluza en el siglo XIX: criterios de selección léxica
Authors: AHUMADA Ignacio
Published: February 2023

Es un hecho el carácter diferencial de los diccionarios de regionalismos del español, un carácter que viene determinado por el principio de contrastividad de los candidatos a regionalismo con otros repertorios lexicográficos, por lo general sólo con el diccionario académico. La revisión del criterio de selección léxica en los repertorios andaluces del siglo XIX nos permitirá comorobar, de un lado, el carácter intearal de los vocabularios o léxicos de especialidad; y de otro, las carencias que presentan los diccionarios generales para la correcta y segura aplicación del principio de contrastividad por parte de los autores de diccionarios de regionalismos.
Consideraciones sobre la traducción de textos poéticos y científico-técnicos
Authors: CAMPOS MARTÍN Natalia
Published: February 2023

Algunas de las razones que se han esgrimido en defensa de la intraducibilidad de la poesía se basan en la idea de que no existen reglas que permitan realizar la equivalencia del texto original, debido fundamentalmente al hecho de que el texto construye su sentido a través de una sutil madeja de metáforas, aliteraciones y correspondencias fono-semánticas. En este artículo defendemos la especificidad de los textos poéticos frente a los técnicos o jurídicos. Esta especificidad radica, sobre todo, en la estrecha relación que existe entre el significante y el significado, una relación que podríamos definir de sacramental, indisoluble. Sin embargo, la traducción de un texto científico o técnico no es comparable con la del texto poético, ya que su objetivo no es estético sino informativo. Su finalidad no es la de buscar las correspondencias fono-estilísticas con el texto original, sino la de transmitir de una manera sencilla toda una serie de datos, utilizando para ello unos significados que sean unívocos, sin las ambigüedades del lenguaje estándar, ya que éstas pueden afectar a la información contenida en el texto de llegada.
Alonzo the Brave: a Gothic literary ballad
Authors: LÓPEZ FOLGADO Vicente
Published: February 2023

La balada es un género que comprende una amplia gama de poesía, si bien en sus orígenes significó 'canción de baile'. Fueron los campesinos a lo largo y ancho de Europa quienes tradicionalmente cantaban y bailaban en sus fiestas baladas relativos a temas como el amor, la juventud y la primavera, siguiendo las pautas de un metro (estrofas de cuatro versos). Sus orígenes se remontan pues a la edad media para muchos, aunque hay quien mantiene (Griegson 1975) que son composiciones más cercanas en el tiempo. Este artículo se centra, no en antiguas baladas sino en la balada literaria, escrita a imitación de las antiguas, y que tuvo su momento de apogeo en el romanticismo. De forma más concreta, trata de una balada 'gótica', Alonzo the Brave, de 1795, escrita por M. Gregory Lewis, autor de la famosa novela, The Monk, en la que la heroína encuentra un volumen de antiguas baladas españolas.
Recreando la irrealidad: análisis comparativo de tres versiones en español de la Ligeia de Poe
Authors: RIVAS CARMONA María del Mar
Published: February 2023

"Ligeia" es, sin duda, el relato que más fielmente refleja la imaginación sin límites de Edgar Allan Poe. La reproducción de la intricada complejidad estructural y de la confusa sensación de irrealidad de este cuento, que elevó a su autor a la inmortalidad literaria, se ha convertido en ardua labor para numerosos traductores. El objetivo de este estudio ha sido investigar cómo distintas traducciones han recreado en español dicha atmósfera de confusa irrealidad. El análisis de tres versiones distintas nos ha llevado a concluir que la reputada traducción de Julio Cortázar es la más acertada, entre otros motivos, porque mantiene siempre un registro formal y literario, tanto en un nivel léxico como sintáctico, que se ajusta perfectamente al estilo descriptivo, poético y pictórico del original de Poe.
The effect of the coupling radii of the elements of membrane MEMS systems on their own oscillations
Authors: Ausiyevich A. M. , Taratyn I. A. , Kirylau P. S.
Published: February 2023

The regularities of changes in the frequencies and forms of natural oscillations and the stress state of a silicon sensing element of a mechanical MEMS accelerometer system depending on changes in the radii of rounding of structural elements are considered. An increase in the natural frequencies of the system and stresses in torsion suspensions has been established with an increase in the radii of the coupling of the suspension with the frame and the inertial mass. The rounding of the shape of the suspensions in the plan leads to a decrease in natural frequencies and an increase in stresses arising from oscillatory movements. The fact of localization of high-frequency oscillation forms in the inertial mass is confirmed. A set of design solutions is recommended to control the vibration state of the MEMS accelerometer mechanical system.
Assessment of the impact of noise level on the accuracy of reconstruction of the image of the industrial product
Authors: Zolotarev S. A. , Taruat A. T. , Bilenko E. G.
Published: February 2023

The traditional tomography is an effective remedy for medical diagnostics, nondestructive control of industrial designs and for quality check of industrial products. Tomographic visualization of objects in case of an incomplete viewing angle, limited number of projections and/or the insufficient power of a source of x-ray radiation is strongly incorrect return task. Article is devoted to case research when noise in input data significantly affect convergence and quality of the reconstructed image.
Software tool for processing and selecting objects in infrared images
Authors: Rybak V. A. , Amro Rabia
Published: February 2023

The article describes the scientific problem of processing images obtained in the infrared range. Methods for filtering such images in order to reduce noise are presented. Methods for optimal smoothing are described. A software tool has been developed that allows you to select the desired objects on the processed images.
Full-length αIIbβ3 CryoEM structure reveals intact integrin initiate-activation intrinsic architecture
Authors: Wang Zhao , Huo Tong , Wu Hongjiang , Moussa Zeinab , Sen Mehmet , Dalton Valerie
Published: February 2023

Integrin αIIbβ3 is the key receptor regulating platelet retraction and accumulation, thus pivotal for hemostasis, and arterial thrombosis as well as a proven drug-target for antithrombotic therapies. Here we resolve the cryoEM structures of the intact full-length αIIbβ3, which covers three distinct states along the activation pathway. Here, we resolve intact αIIbβ3 structure at 3Å resolution, revealing the overall topology of the heterodimer with the transmembrane (TM) helices and the head region ligand-binding domain tucked in a specific angle proximity to the TM region. In response to the addition of an Mn2+ agonist, we resolved two coexisting states, “intermediate” and “pre-active”. Our structures show conformational changes of the intact αIIbβ3 activating trajectory, as well as a unique twisting of the lower integrin legs representing intermediate state (TM region at a twisting conformation) integrin and a coexisting pre-active state (bent and opening in leg), which is required for inducing the transitioning platelets to accumulate. Our structure provides for the first time direct structural evidence for the lower legs’ involvement in full-length integrin activation mechanisms. Additionally, our structure offers a new strategy to target the αIIbβ3 lower leg allosterically instead of modulating the affinity of the αIIbβ3 head region.
Diaporthe cotoneastri and Ilyonectria cyclaminicola Endophytes Promote the Growth, Development, and Accumulation of Active Components of Epimedium Host Plants
Authors: Chen Jiawen , Liu Hanning , Hu Xing , Zhuang Xin , Guo Junjie , Xiao Jinglei
Published: February 2023

Epimedium plants offer a source of medicinal ingredients. To promote research and development of Epimedium in Korea, we explored the effects of endophytes on host plant growth and development and the accumulation of active components. The effects of the endophytes Diaporthe cotoneastri (strain S3) and Ilyonectria cyclaminicola (strain S10) on the biomass, photosynthesis parameters, chlorophyll fluorescence parameters, and activity of key enzymes and active components during the growth and development of Epimedium were investigated. Both the S3 and S10 strains promoted the growth of Epimedium grown in the natural environment in a field experiment in Korea. Redundancy analysis showed that the content of epimedin A and peroxidase activity were positively correlated with the total flavonoid content. The S10 strain promoted the growth of Epimedium faster than the S3 strain. The results suggested that flavanone 3-hydroxylase catalyzes the synthesis of epimedin A and icariin by different pathways from the same substrate, although the mechanism remains unclear. Overall, these findings suggest that peroxidase plays a key role in total flavonoids synthesis in Korean Epimedium. These results can support the use of these endophyte strains as biological fertilizers to improve the growth and active components production of Epimedium. Keywords: F3H; endophyte; Korean Epimedium; total flavonoids; epimedin A; icariin
Taste matters: Mapping expectancy-based appetitive placebo effects onto the brain
Authors: Khalid Iraj , Rodrigues Belina , Dreyfus Hippolyte , Frileux Solene , Meissner Karin , Fossati Philippe , Hare Todd , Schmidt Liane
Published: February 2023

Expectancies, which are higher order prognostic beliefs, can have powerful effects on experiences, behavior and brain. However, it is unknown where, how, and when, in the brain, prognostic beliefs influence appetitive interoceptive experiences and related economic behavior. This study combined a placebo intervention on hunger with computational modelling and functional magnetic resonance imaging of value-based decision-making. The results show that prognostic beliefs about hunger shape hunger experiences, how much participants value food and food-value encoding in the prefrontal cortex. Computational modelling further revealed that these placebo effects were underpinned by how much and when during the decision process taste and health information are integrated into the accumulation of evidence toward a food choice. The drift weights of both sources of information further moderated ventromedial and dorsolateral prefrontal cortex interactions during choice formation. These findings provide novel insights into the neurocognitive mechanisms that translate higher order prognostic beliefs into non-aversive interoceptive sensitivity and shape decision-making.
Spontaneous rupture of the lower uterine segment and posterior vaginal fornix during labor in term pregnant women caused by cervical fibroids: a case report and review of the literature
Authors: Wang Yin , Liu Dehong , Wu Xiumei , Zheng Chenmin , Chen Xianxia
Published: February 2023

Background
Uterine rupture during labor is a rare but serious complication that often leads to severe maternal and perinatal complications and even maternal death and stillbirth.
Case introduction
The patient was a 40-year-old multiparous woman at 40 weeks’ gestation with a singleton pregnancy. The obstetric examination showed that the cervical tube was 2cm long and hard. Eleven hours after admission, the patient felt abdominal pain suddenly aggravated and had bright red vaginal bleeding. The obstetric examination showed that the cervical opening was not opened, there was a rupture of about 4 cm in diameter at the posterior fornix of the vagina, and the amniotic sac and the fetal head were palpable. Therefore, we immediately performed an emergency cesarean section under general anesthesia. We found no blood or effusion in the abdominal cavity, and the retrovesical peritoneum and rectovaginal peritoneum were complete. We opened the uterus and took out a girl with an Apgar score of 9–10 and a weight of 3970 grams. We placed the patient in the lithotomy position and found a transverse fracture with a length of about 4 cm in the posterior fornix of the vagina. We explored the fracture to the uterine cavity and found a vertical crack with a length of 3 cm in the lower segment of the posterior wall of the uterus. We use 1 − 0 absorbable sutures to continuously sew up the crack. One year and seven months after the operation, a color Doppler ultrasound showed a myoma with a diameter of about 3 cm in the cervix. At three years and seven months postoperatively, the cervical fibroid had enlarged to 4 cm. The gynecologist administered a transvaginal cervical myomectomy to the patient. Postoperative pathology revealed a cervical leiomyoma.
Conclusions
This case report suggests that rupture of the uterine and vaginal fornix may occur even in women who have given birth, necessitating termination of pregnancy by cesarean section when the cervical texture is firm and fails to expand during labor. We need to closely follow up with those patients with uterine rupture.
Production of biostable drinking water using a lab-scale biological trickling filter enriched with hydrogen-oxidizing bacteria
Authors: Boon Nico , Favere Jorien , Waegenaar Fien , Jia Mingsheng , Folens Karel , Verhoeven Milan , Balliu Elien , Rajkovic Andreja , De Gusseme Bart
Published: February 2023

Safeguarding the drinking water quality remains a challenge from the production site to the tap. Alternatively to chemical disinfection, biostable drinking water could serve as a more sustainable approach to produce microbially safe drinking water and to maintain the microbial quality in the drinking water distribution system (DWDS). In this study, the potential of hydrogen-oxidizing bacteria (HOB) for the production of biostable drinking water was examined in a continuous trickling filter supplied with hydrogen gas. A biofilm was naturally enriched for 5 months and the bacterial regrowth, invasion potential, and nutrient composition of the water were determined. Treatment improved the biostability significantly, and it is hypothesized that nutrient limitation, especially phosphorous, was a driving force. As a result, the regrowth and invasion potential were lowered, as shown with specific biostability bioassays. Overall, this study demonstrates the effectiveness of HOB for producing biostable drinking water through nutrient limitation.
A Comparative Analysis of Four Commonly Implemented Declustering Algorithms
Authors: Perry Mason , Bendick Rebecca
Published: February 2023

Declustering of earthquake catalogs, that is determining dependent and independent events in an earthquake sequence, is a common feature of many seismological studies. While many different declustering algorithms exist, each has different performance and sensitivity characteristics. Here, we conduct a comparative analysis of the four most commonly used declustering algorithms: Garnder and Knopoff (1975), Reasenberg (1985), Zhuang et al. (2002), and Zaliapin and Ben-Zion (2008) in four different tectonic settings. Overall, we find that the Zaliapin and Ben-Zion (2008) algorithm effectively removes aftershock sequences, while simultaneously retaining the most information (i.e. the most events) in the output catalog and not significantly modifying statistical characteristics (i.e. the Gutenberg Richter b-value). Both Gardner and Knopoff (1975) and Zhuang et al. (2002) also effectively remove aftershock sequences, though they remove significantly more events than the other algorithms. By contrast, Reasenberg (1985) only effectively removed aftershocks in one of the test regions.
Immediate and Sustained Effects on the Control of Myoelectric Prostheses by Action Observation Using Virtual Reality with Myoelectric Feedback
Authors: Yoshimura Manabu , Kurumadani Hiroshi , Ito Tomotaka , Hosokawa Takayuki , Hirata Junya , Senoo Katsutoshi , Kinoshita Seiji , Date Shota , Hanayama Kozo , Sunagawa Toru
Published: February 2023

Background
Conventional myoelectric prosthesis (myo-prosthesis) training involves repetitive grasping and manipulation training, which requires considerable training time. It is necessary to develop a short and efficient myo-prosthesis training. The purpose of this study was to verify the immediate and sustained effects of action observation (AO) using virtual reality (VR) on myo-prosthesis control and clarify the effect of visual feedback of electromyogram (EMG) signals during AO using VR.
Methods
We evaluated 24 healthy right-handed individuals wearing a myo-prosthesis simulator in their dominant hands. We divided participants into three groups: VR video observation with EMG presentation during manipulation (VR+), VR video observation without EMG presentation (VR), and control group. We evaluated prosthetic control skills using the Gripping force adjustment test (GFAT) and Bowknot task immediately before and after AO and one week later. Additionally, we evaluated level of immersion, motivation, and enjoyment during AO.
Results
The rate of change in the GFAT one week after the intervention was significantly greater in the VR+ (p < 0.05, d = 1.32) and VR (p < 0.01, d = 2.34) than the control group. Immersion, motivation, and enjoyment were significantly higher in the VR + and VR than the control group. There was a significant main effect of the condition and time required for GFAT, although the post-hoc test showed no significant difference between VR + and VR groups.
Conclusions
AO using VR had a sustained effect on motor learning of myo-prosthetic control, despite EMG presentation. Therefore, AO using VR may maintain the ability to manipulate prosthesis once learned and might be used for future training of myo-prosthetic control.
Atorvastatin for Reduction of 28-day Mortality in Sever and Critical COVID-19 Patients: A Randomized Controlled Trial
Authors: Eltahan Naglaa Hamdi , Elsawy Neamat Hamdy , Abdelaaty Kholoud M. , Elhamaky Amal Salah , Hassan Ahmed H. , Emara Moataz Maher
Published: February 2023

Background: COVID-19 is an abnormal host response to the SARS-CoV-2 infection, which is associated with endothelial dysfunction and multi-organ failure. Atorvastatin has been proposed to reduce COVID-19 severity and mortality.
Methods: This randomized double-blind trial included 220 COVID-19 patients admitted to Mansoura University's isolation hospital in Egypt. One hundred and ten cases were given 40 mg of atorvastatin once daily for 28 days (group A), while 110 received a placebo (group B). All patients received treatment as per hospital protocol.
The primary outcome is all-cause mortality at 28 days. We also tracked six-month mortality, time to clinical improvement, the risk of invasive mechanical ventilation, acute kidney injury, potential adverse events, and hospital and intensive care length of stay.
Results: The 28-day all-cause mortality was 52/104 (50%) in group A vs. 54/103 (52.4%) in group B, odds ratio (OR) = 0.907 (0.526, 1.565), P = 0.727; adjusted OR = 0.773 (0.407, 1.47), P = 0.433. Six-month mortality occurred in 53/102 (52%) and 59/79 (60.8%) in group A vs. B, respectively, P = 0.208. Among hospital survivors in group A vs. group B, the median time to clinical improvement was 10 days (7–14) vs. 10 (7–15), P = 0.715; the duration of hospital stay was 10 days (7–14) vs. 10 (8–17), P = 0.378. Discontinuation was higher in group B (four vs. one), P = 0.369.
Conclusions: In adults with severe or critical COVID-19, atorvastatin did not reduce the risk of 28-day or six-month mortality and did not improve other clinical outcomes.
Trial registration: Clinical Trial Registry (NCT04952350) on July 1st, 2021. https://clinicaltrials.gov/ct2/show/NCT04952350
WITHDRAWN: About aspect ratio effect on heat transfer by turbulent wall jet flow through a top-opened backward facing step configuration
Authors: Ouldrebai Hakim , Bouda Nora Nait , Harmand Souad
Published: February 2023

The present work analyzes a fully turbulent wall jet flow cooling a heated wall downstream a backward facing step. The experiment combines dynamic and thermal measurements in order to study the detailed of such flow. The test matrix involves several aspect ratios (AR), varying from 2.61 to 11.33, obtained by changing the step height as well as different turbulent Reynolds (Re) numbers up to 22700. Data are collected using a hot wire anemometer and an infrared thermal camera. The results show that the position of maximum heat transfer xmax becomes farther as the AR gets smaller, but is independent of Reynolds numbers for the considered range. The Reynolds number effect on maximum Nusselt number (Numax) is also presented. The side walls effect on heat transfer downstream the backward facing step is found to become more significant as much as the aspect ratio is smaller. Correlations relating heat transfer parameters to Re and/or AR are also presented.
Fear of Failure among Indigent Adolescents.
Authors: Joy Anmol , Jain Vandana
Published: February 2023

Fear of failure is a motive to avoid failure in most evaluative situations based on anticipatory shame upon failure of the person in concern. This study aims at finding the gender difference in fear of failure among indigent adolescents of Kalina, Mumbai. For this, the sample size of 87 indigent adolescents was taken among which 54 were females and 33 were males. Performance Failure Appraisal Inventory (PFAI) by David E. Conray, Ph.D. was used and has high reliability. Exploratory research design was used for the study. This study gives further scope for parents, counselors, educational sectors and social workers to give needful opportunities to the males and females living in slum areas to acknowledge their levels Fear of Failure with a foresight of reducing it. The research data obtained from the adolescents of Kalina mumbai, were the residents of the nearest slum area called Dharavi, which is Asia’s largest slum area which indeed helps the research to generalize the data obtained.
Analysis and Prediction of Ground Water Quality of Belpahar area, Odisha, India on performance of ANN Method
Authors: Barik Pritisha , Biswal Trinath
Published: February 2023

The authors have requested that this preprint be removed from Research Square.
Comparative study on tetraploid induction of the Fujian oyster Crassostrea angulata utilizing three typical methods
Authors: Liang Yuanxin , Cheng Geng , Bai Xianchao , Zhou Jianmin , Zhang Haining , Chi Yong , Jiang Gaowei , Xu Chengxun , Li Qi
Published: February 2023

The sterility advantages of triploids make them paramount for oyster aquaculture. Current hatcheries for triploid industrial breeding utilize tetraploids as male parents, and thus tetraploids are a core asset for triploid oyster culture. The oyster Crassostrea angulata is the most productive oyster species in China, however, the optimal conditions for tetraploid induction have never been examined. In this study, we investigated the effectiveness of three induction methods (Method Ⅰ, 2n ♀ × 2n ♂ + inducer abbreviated as DD + ind; Method Ⅱ, 3n ♀ × 2n ♂ + inducer abbreviated as TrD + ind; Method Ⅲ, 2n ♀ × 4n ♂ + inducer abbreviated as DT + ind) and three inducers (salinity; cytochalasin B, CB; and 6-dimethylaminopurine, 6-DMAP) for tetraploid induction in C. angulata. The optimal induction conditions for the three induction methods were a CB concentration of 0.5 mg/L treated for 20 min, 0.75 mg/L CB for a constant induction treatment of 20 min and 6-DMAP at a concentration of 100 mg/L for 20 min, respectively. When the optimal induction conditions were applied to a single pair of oysters, the D-larval tetraploid rate for the three methods were 18.93%, 58.32% and 51.61%, respectively. The survival rates of the experimental groups were only 10.36%, 28.07% and 21.99%, respectively, at day 30. The tetraploid rates for Method Ⅰ and Method Ⅲ, although decreased significantly over time, still reached 11.81% and 21.99% at 30 days, and 8% and 16% at 180 days of age, respectively. Tetraploid rates for Method Ⅱ were 58.32% − 71.28% at the larval stage and 80% at day 180. In summary, in spite of very different induction rates, viable tetraploid C. angulata can be harvested in all three methods. Method Ⅱ (TrD + inducer) was regarded as the optimal method to induce C. angulata tetraploids, and the optimal induction condition was a CB concentration of 0.75 mg/L and treated for 20 min under this method.