bluuebunny/crossref_metadata_2025 huggingface dataset:
Treatment for Diabetic Peripheral Neuropathy: What have we Learned from Animal Models?
Authors: Yorek Mark
Published: May 2021

Introduction:

Animal models have been widely used to investigate the etiology and potential treatments for diabetic peripheral neuropathy. What we have learned from these studies and the extent to which this information has been adapted for the human condition will be the subject of this review article.

Methods:

A comprehensive search of the PubMed database was performed, and relevant articles on the topic were included in this review.

Results:

Extensive study of diabetic animal models has shown that the etiology of diabetic peripheral neuropathy is complex, with multiple mechanisms affecting neurons, Schwann cells, and the microvasculature, which contribute to the phenotypic nature of this most common complication of diabetes. Moreover, animal studies have demonstrated that the mechanisms related to peripheral neuropathy occurring in type 1 and type 2 diabetes are likely different, with hyperglycemia being the primary factor for neuropathology in type 1 diabetes, which contributes to a lesser extent in type 2 diabetes, whereas insulin resistance, hyperlipidemia, and other factors may have a greater role. Two of the earliest mechanisms described from animal studies as a cause for diabetic peripheral neuropathy were the activation of the aldose reductase pathway and increased non-enzymatic glycation. However, continuing research has identified numerous other potential factors that may contribute to diabetic peripheral neuropathy, including oxidative and inflammatory stress, dysregulation of protein kinase C and hexosamine pathways, and decreased neurotrophic support. In addition, recent studies have demonstrated that peripheral neuropathy-like symptoms are present in animal models, representing pre-diabetes in the absence of hyperglycemia.

Conclusions:

This complexity complicates the successful treatment of diabetic peripheral neuropathy, and results in the poor outcome of translating successful treatments from animal studies to human clinical trials.
REKONSEPTUALISASI JALUR KHUSUS DALAM RANCANGAN KUHAP SEBAGAI BENTUK REFORMASI SISTEM PERADILAN PIDANA INDONESIA
Authors:   Fakultas Hukum Universitas Brawijaya, Bagaskoro Ladito
Published: May 2021

Abstract The significant increase in the pile of case files between 2016 and 2019 led to the need for concepts or methods that can create judicial efficiency. In the spirit of reforming the Criminal Procedure Code, the drafting team of the Criminal Procedure Code tries to include procedures aimed at shortening and expediting procedural procedures through the existence of a special pathway in Indonesian criminal procedural law in the future, which is inspired by the concept of plea-bargaining in the United States and Britain. This normative research uses conceptual and comparative law. The result shows that a special line was given to the defendant who admitted to the criminal act charged making the trial hearing shorter. Second, there are several fundamental differences between the special lines in the Draft Criminal Procedure Code and plea bargaining in the United States, especially in the agreement between the defendant or legal adviser and the public prosecutor, the process for confessing the accused, the criminal acts included, and the position of the judge in their respective processes.
PENYELESAIAN SENGKETA TANAH ULAYAT YANG TELAH BERSERTIFIKAT BERDASARKAN HUKUM ADAT MALIND-ANIM
Authors:   Praktisi Hukum Kabupaten Merauke, Papua, Muddin Ahmad , Djanggih Hardianto
Published: May 2021

Abstract This study aims to analyze dispute resolution, the dispute resolution approach that guarantees legal certainty and examine the factors that influence the construction of the settlement of land rights of the customary community of Malind-Amin. This normative and empirical legal research is analized descriptively and analytically. The results shows that the nature of customary land dispute with customary law can be resolved through positive legal mechanisms and customary law mechanisms, while dispute resolution on disputed objects that have certificates based on the release of traditional institutions through mediation, synchronization / harmonization of laws and the making of local regulations. However, efforts to resolve this have experienced various factors of internal and external obstacles.
Self-Care Needs and Technology Preferences Among Parents in Marginalized Communities: Participatory Design Study
Authors: Yuwen Weichao , Duran Miriana , Tan Minghui , Ward Teresa M , Cheng Sunny Chieh , Ramirez Magaly
Published: May 2021

Background

Ten million parents provide unpaid care to children living with chronic conditions, such as asthma, and a high percentage of these parents are in marginalized communities, including racial and ethnic minority and low-income families. There is an urgent need to develop technology-enabled tailored solutions to support the self-care needs of these parents.

Objective

This study aimed to use a participatory design approach to describe and compare Latino and non-Latino parents’ current self-care practices, needs, and technology preferences when caring for children with asthma in marginalized communities.

Methods

The participatory design approach was used to actively engage intended users in the design process and empower them to identify needs and generate design ideas to meet those needs.

Results

Thirteen stakeholders participated in three design sessions. We described Latino and non-Latino parents’ similarities in self-care practices and cultural-specific preferences. When coming up with ideas of technologies for self-care, non-Latino parents focused on improving caregiving stress through journaling, daily affirmations, and tracking feelings, while Latino parents focused more on relaxation and entertainment.

Conclusions

Considerations need to be taken beyond language differences when developing technology-enabled interventions for diverse populations. The community partnership approach strengthened the study’s inclusive design.
A Social Media Organizational Productivity Model: Insights From Public Health Professionals (Preprint)
Authors: Dailah Sr Hamad Ghaleb , Naeem Muhammad
Published: May 2021

BACKGROUND

Many previous studies have explored socialization-oriented social media (SM), but their reach has been limited to the context of information exchange for common personal interests. This study focuses on work-oriented SM, which can enhance organizational networking and productivity levels in the context of public hospitals.

OBJECTIVE

This study aims to provide a theoretical framework to explain how the use of SM can enhance the skills of health professionals and levels of organizational productivity in uncertain environments.

METHODS

A total of 2 distinct forms of data collection techniques were combined: focus groups and semistructured interviews. Both were conducted with doctors and nurses in Saudi public sector hospitals.

RESULTS

The findings reveal that the use of SM can create professional socialization at the level of the institution, and this can enhance skills, knowledge, decision making, and the overall level of organizational productivity. The increasing use of SM creates collaboration between health experts (particularly endocrinologists and pulmonologists in this case) who arrange video calls to share best practices in terms of medication, diet, and health care plans for patients with multiple diseases. Many of these patients are particularly vulnerable, given the wider context of the current global pandemic.

CONCLUSIONS

This study culminates in the Social Media Organizational Productivity model, which provides insights into how SM has increased the accessibility of health professionals through the use of technology. Access to such professionals creates a patient-centric approach and a culture of shared communication for dealing with high-risk patients during the current global pandemic.
Peer Review of “Why We Are Losing the War Against COVID-19 on the Data Front and How to Reverse the Situation” (Preprint)
Authors:   Anonymous
Published: May 2021

UNSTRUCTURED

This is a peer review report.
The Attitudes of Egyptian Web-Based Health Information Seekers Toward Health Information Provided Through the Internet: Qualitative Study (Preprint)
Authors: Ghweeba Mayada , Lindenmeyer Antje , Shishi Sobhi , Waheed Amani , Kofi Mostafa , Amer Shaymaa
Published: May 2021

BACKGROUND

The internet has become an established source of health information for many Egyptian internet users. Understanding users’ attitudes toward the benefits and limitations of web-based health information will explain the influence of this information on users’ health-related behavior and decisions.

OBJECTIVE

This qualitative study aims to understand the attitude of Egyptian internet users toward internet health information and to explore the impact of obtained health information on users’ behavior and on their physician-patient relationship.

METHODS

For this qualitative study, semistructured interviews were conducted with a total of 49 participants (41/49, 84% Egyptian internet users and 8/49, 16% physicians) who participated in focus groups or individual interviews. We used a thematic analysis approach to explain and demonstrate participants’ views, thoughts, and experiences in using web-based health information.

RESULTS

The internet has become an important source of health information in comparison with other health information sources and is the central theme that has emerged across the thematic analysis. The attitude toward the use of internet health was classified into three main themes: feeling toward web-based health information (with subthemes: favoring, disliking, neutral, or having ambivalence feelings), motivators to seek internet health information, and behavioral changes using internet health information (subthemes: confidence, satisfaction, and improved knowledge). Themes that emerged from physicians’ interviews included the accessibility of the internet health information, good communication, and coordination of care between patients and their physicians, and the active engagement of patients with their management plan.

CONCLUSIONS

The internet has become an essential source of health information for Egyptian adults. Internet health information can improve the patient-physician relationship, especially when users discuss the obtained health information with their physician. Internet health information provided seekers with social support and self-confidence when making health decisions.
ELT pedagogical reforms: EFL high-school teachers’ perceptions and responses
Authors: Le Thi Thanh Thao , Le Xuan Mai
Published: May 2021

Educational change, particularly English language teaching (ELT) pedagogical reforms, has received much attention from language researchers in the era of globalization and internationalization. Despite the recognition of problems in implementation, ELT pedagogical reforms have been widely introduced and adopted in schools all over the world, particularly in Vietnam. What English teachers’ overall perceptions, understanding, and practices are, and what influential factors on response to ELT pedagogical reforms are, the major foci in this study. The data were collected from 102 teachers of English as a Foreign Language (EFL) in different high-schools (grades 10, 11 and 12) in the Mekong Delta. The results from the questionnaire and interview revealed that the teachers highly perceived ELT pedagogical reforms. Moreover, the results also showed that the teachers well understood the values of ELT pedagogical reforms. However, the findings also showed that the teacher’s practices of ELT pedagogical reforms were above average and that their practices did not match with their understanding of the values of ELT pedagogical reforms. Besides that, from the findings, the EFL high-school teachers were relative strongly influenced, both the internal and external factors; the main influential factors are students’ learning outcomes after implementing ELT pedagogical reforms, teachers’ attitudes towards the adoption of these reforms, and teachers’ self-efficacy on their teaching. Moreover, the study contributed an interesting finding to the literature that teaching and learning culture is a factor that influenced teachers’ responses. Based on these findings, implications were made for enhancing teachers’ teaching practices in response to ELT pedagogical...
Misiones seculares: la asistencia técnica nuclear en la primera década del Organismo Internacional de Energía Atómica (1958-1968)
Authors: Mateos Gisela , Suárez-Díaz Edna
Published: May 2021

Las Misiones Preliminares de Asistencia, organizadas a partir de 1958 por el Organismo Internacional de Energía Atómica (OIEA) con sede en Viena, pusieron en marcha un conjunto de acciones y prácticas establecidas en las décadas anteriores, asociadas a los programas de ayuda y cooperación internacional. La secularización de las misiones coloniales encargadas de recabar datos, diagnosticar, planear y, en última instancia, transformar amplias regiones del mundo, adquirió nuevos rasgos en el mundo en proceso de decolonización de la segunda posguerra. Numerosos agentes coloniales se integraron a las agencias multilaterales de la Organización de las Naciones Unidas, trayendo consigo prácticas administrativas y modos de operación que habían sido puestos a prueba antes de la guerra; el nuevo contexto, sin embargo, reclamaba una mayor participación de los países llamados “recipientes”, lo que ocurría en un medio que proclamaba nuevos valores. Las misiones del OIEA, sin embargo, destacaron por su encargo específico: la creación de una necesidad de tecnologías y prácticas nucleares que no eran prioritarias para esos países, y su dependencia de los programas de educación y capacitación de expertos en los campos y disciplinas de las ciencias nucleares.
La secularización como un discurso de “misión”: una mirada desde el feminismo crítico y los feminismos descoloniales
Authors: Meza Torres Andrea
Published: May 2021

Este artículo comienza por presentar una crítica de la secularización en base a los argumentos de Joan Wallach Scott en su libro Sex and Secularism. Aquí, la intelectual y feminista realiza una crítica de este proceso como un discurso de poder que no corresponde con los hechos históricos; más allá, argumenta que la igualdad de los sexos no está en la base del proceso de secularización. Scott muestra que este discurso está relacionado a un pensamiento dicotómico que, hoy en día, ha generado la dicotomía “igualdad de los sexos y libertad sexual (occidentales)” versus “Islam”. Esta dicotomía, basada en la imagen superioridad/inferioridad, sustenta objetivos geopolíticos vinculados a la colonización de las periferias y está, por lo tanto, asociado al discurso de las “misiones” coloniales y a su continuidad. En la segunda parte de este artículo, presento el pensamiento descolonial de Arzu Merali, Houria Bouteldja y Sirin Adlbi Sibai, quienes desde el contexto de sociedades arabo-musulmanas dentro del Norte Global, expresan una crítica hacia el feminismo occidental (blanco) y por ende hacia la secularización. Se trata de una crítica que coincide en varios puntos nodales con la de Scott. El objetivo de este artículo es presentar convergencias entre una voz feminista crítica del campo académico occidental - que ha dado un giro importante - y voces de mujeres que han sido sistemáticamente silenciadas por la academia occidentalizada. Más allá de la crítica de la secularización desde dentro del campo académico occidental, este artículo busca mostrar alternativas desde las periferias globales que no ven al discurso de la secularización como una salida de la opresión. Los puntos de convergencia entre el feminismo crítico y las voces de pensadoras musulmanas muestran a la secularización como un proceso cuya fuerza ideológica e historicidad deben analizarse y cuestionarse a fondo para proponer nuevas alternativas de diálogos más allá de las misiones de la cristiandad imperial y/o o su vertiente teológica secularizada.
Triggered seismicity in the Valley of Mexico from major Mexican earthquakes
Authors: Singh S. K. , Anderson J. G. , Rodríguez Miguel
Published: May 2021

We have made a systematic examination of seismograms and bulletins from Mexico City since 1920 to examine whether major and great subduction zone earthquakes along the Pacific coast of Mexico caused increases of local seismicity in the Valley of Mexico, which is situated in the Trans Mexican Volcanic Belt. Of ten coastal events analyzed through 1957, seven events are followed by seismicity increases in the valley, although the increase in one of these cases-is small. The probability that these increases occur by coincidence is negligible. Eight large coastal earthquakes since 1957 were also examined. For these events the results are more ambiguous dire to an increase in the cultural noise and the necessity t o Irse different seismic stations. It is clear, however, that the two 1985 earthquakes were followed by an increase in local @writs.A small increase in the activity is noted following events in 1978 and 1979. During the events which were fol- :?wcdby increased activity, the computed shear strain amplitudes and dilatations were greater than or equal to 3 and 2 mi- crrbstrains, respectively, while for the events that caused no increase in seismicity, the computed strains were less than or eq:ial to these values. These observations are consistent with the possibility that the activity in the Valley of Mexico was triggered. They are further consistent with the existence of some threshold in strain that needs to be exceeded to cause re- rnoc::. triggering of earthquakes. The observed delays in the triggered seismicity could be caused by either creep or fluid flow processes.
IPDP geomagnetic pulsations and their relation to coronal holes and high speed solar wind streams
Authors: Bravo S. , Cruz Abeyro J. A. L.
Published: May 2021

The frequency of occurrence of intervals of pulsations of diminishing periods (IPDP) has shown a very surprising inverse relation to the sunspot number. In this paper we take the annual frequency of occurrence of IPDPs at Sodankyla station for the period 1974 to 1985 and find that they correlate msitivelv with coronal hole area with a correlation coefficient of 0.77. This suggests a physical relationship between this kind of pulsations and the high speed streams (HSSs) in the solar wind coming from the holes. We compare the annual rate of lPDPs to the annual number of coronal-hole associated HSSs having a velocity equal to or higher than 550 kmls for the period from 1974 to 1982. We find a good agreement during the descending part of the solar cycle and around the maximum, but during the minimum and the first years of the ascending phase were more frequent than HSSs. We conclude that IPDPs are related to some solar wind characteristics in HSSs and we discuss a  possible reason for the differences during the minimum.
Dusty plasma in space
Authors: Kotsarenko N. Ya. , Koshevaya S. V. , Kotsarenko A. N.
Published: May 2021

Intensos estudios de la física de plasmas realizados desde hace alrededor de 10 años han visto el surgimiento de una nueva línea de investigación: la física de plasmas polvosos, que consisten de electrones, iones y partículas de polvo cargadas. Se observan en varios medios astrofísicos como nebulosas, colas cometarias, anillos planetarios, ionosferas planetarias, etc. La presencia de partículas de polvo pesadas y cargadas puede influenciar significativamente varios parámetros del plasma al crear, por ejemplo, estructuras en su interior en un rango muy amplio de cientos a decenas de millones de kilómetros. En este trabajo presentamos una revisión y un análisis del espectro del volumen y ondas superficiales, estabilidades y solitones en un plasma polvoso.
Source parameters of two moderate Mexican earthquakes estimated from a single-station, near-source recording, and from MT inversion of regional data: A comparison of the results
Authors: Pacheco Javier F. , Singh Shri K.
Published: May 2021

Dos sismos recientes de magnitud moderada (marzo 27, 1996, = 5.4; enero 21, 1997, = 5.4), ocurridos cerca de la localidad de Pinotepa Nacional, Oaxaca, México, fueron registrados en la estación de banda ancha (VBB) PNIG a distancias de campo cercano y en otras estaciones de la red de VBB de México, localizadas a distancias regionales. Ambos eventos saturaron el sensor de velocidad (STS-2) en PNIG. En este estudio primero utilizamos los registros de velocidad y desplazamiento, obtenidos directamente de la integración de los acelerogramas en PNIG, para obtener la localización, profundidad, tiempo de origen, mecanismo focal, momento sísmico escalar, y la función temporal de la fuente para ambos eventos. Luego realizamos una inversión del tensor de momento sísmico (MT) de los registros de desplazamiento regionales, filtrados con un paso de banda de 20 a 50 sec, para estimar los parámetros de la fuente de los dos sismos. Para estos eventos, la solución de MT obtenidos concuerdan razonablemente con los obtenidos con los datos cercanos a la fuente de la estación PNIG. Nuestros resultados muestran que: (a) detalles de los parámetros de la fuente pueden obtenerse de una sola estación, cercana a la fuente, con tres componentes, y con alta calidad de registros, y (b) una estimación aproximada del mecanismo focal, y momento sísmico de sismos mexicanos puede obtenerse de una inversión de MT con datos regionales utilizando la estructura de corteza hasta ahora conocida; sin embargo, una determinación más precisa requiere de un mejor conocimiento de la estructura cortical, principalmente para estimar la profundidad de centroide.
Saltwater intrusion of the Costa de Hermosillo aquifer, Sonora, Mexico: A numerical simulation
Authors: Flores-Márquez E. L. , Campos- Enríquez J. O. , Chávez-Segura R. e. , Castro-García J. A.
Published: May 2021

La inversión de datos gravimétricos nos permitió obtener la topografía del basamento del acuífero de Costa de Hermosillo.La profundidad del basamento es compleja y varía entre 300 y 3500 m, caracterizado por alternancias de horsts y grabens. Entrela ciudad de Hermosillo y Bahía Kino se presenta un alto con una estructura semicircular. Muchos de los grabens están interconectados,sirviendo de canales para el agua de mar que fluye hacia el continente, mientras que los horsts actúan como barreraspara este flujo. La forma que presentan las isolíneas de sólidos totales disueltos permite avalar estas hipótesis. Los datos gravimétricosnos permitieron también establecer la existencia de lineamientos que se correlacionan con la prolongación hacia el sur de la fallade Cerro Prieto y con el lineamiento del margen del Cratón. De acuerdo con la distribución de resistividades eléctricas en el área,el frente del agua de mar se extiende por más de 25 km dentro del continente y tiene una profundidad superior a los 200 m.Basándonos en estos resultados y en los datos de pozos, reconstruimos la estratigrafía del acuífero. La información geofísica,geológica y geohidrológica se utilizó para inferir un modelo geológico del acuífero de Costa de Hermosillo, que posteriormentepermitió construir secciones bidimensionales para realizar los modelos numéricos de la intrusión salina. Esta modelación serealizó con base en un tratamiento adimensional de las ecuaciones de Darcy, de continuidad para el agua y para la sal, y en unarelación constitutiva entre el agua y la concentración de sales. El sistema de ecuaciones adimensionales resultante fue resuelto endos dimensiones mediante un método de diferencias finitas, en perfiles seleccionados sobre el modelo geológico de la zona.En donde no existen barreras para el flujo de agua de mar se observan, en los modelos, patrones advectivos de circulación delos fluidos. Sin embargo, en las porciones separadas por intrusivos o horsts se observan celdas convectivas. El flujo en el acuíferoes complicado debido a la diversidad de materiales en el relleno sedimentario y a la sobreexplotación del mismo. Se tomó comocondición de frontera el régimen de explotación actual y se realizaron simulaciones numéricas de circulación de fluidos hasta queel sistema alcanza un estado estacionario. Los valores de concentración de sales así obtenidos reproducen de manera aceptable losvalores observados.
Spatial and temporal magnetic anomalies of Colima volcano, western Mexico
Authors: López Loera Héctor , Urrutia Fucugauchi Jaime
Published: May 2021

Se presentan resultados iniciales de un proyecto de largo plazo relacionados con los cambios temporales de las anomalías magnéticas sobre el Volcán de Colima. Este volcán se ha caracterizado por eventos eruptivos frecuentes en tiempos históricos. La actividad presente incluye el crecimiento de un domo de lava en la cima del cráter. Medidas del campo magnético total se tomaron en estaciones espaciadas cada 0.5 km a lo largo de una sección de 35 km que cubre el flanco este y parte de la cima entre Atenquique y El Playón, en un periodo que cubre del 27 de abril de 1995 al 16 de mayo de 1996. Se han reconocido 3 diferentes zonas con características magnéticas anómalas a lo largo de la sección. (1) La zona asociada a avalanchas de escombros del Nevado de Colima y depósitos volcano-conglomeráticos de la Formación Atenquique, entre las estaciones km 10 y 23, caracterizados por anomalías de amplitudes y frecuencias bajas sin cambios magnéticos temporales. (2) La zona de lavas y brechas andesíticas del Nevado de Colima entre las estaciones km 23 y 35, caracterizado por un conjunto de anomalías de baja frecuencia superpuestas a anomalías de altas frecuencias y amplitud variable. Está caracterizado por cambios magnéticos temporales de baja amplitud. (3) La zona entre las estaciones km 35 a 45, caracterizada por anomalías de baja frecuencia y altos y bajos magnéticos de alta amplitud con variaciones temporales de amplitud grande. Esta cruza la cima del Volcán de Colima y la caldera de avalancha, asociado a lavas y brechas andesíticas. Un modelado del campo magnético anómalo indica que los cuerpos fuente pueden extenderse cientos de metros a profundidad, más sin embargo existe una incertidumbre considerable en la variación en las propiedades magnéticas a profundidad. Los datos magnéticos anómalos sugieren que las variaciones temporales en la magnetización en el volcán son causadas por cambios en la temperatura. En particular, los procesos de magnetización/ desmagnetización bajo el área del cono relacionados a la actividad eruptiva pueden ser importantes para los cambios magnéticos. Mecanismos potenciales para los procesos de calentamiento-enfriamiento pueden incluir movimientos de magma y sistemas hidrotermales activos con actividad fumarólica fuerte e interacciones de agua subterránea. Un bajo magnético de 1500-2500 nT caracteriza a la cima del cono y a la caldera de avalancha. Se han observado cambios temporales superpuestos sobre estas anomalías magnéticas de alta amplitud y baja frecuencia, los cuales muestran efectos térmicos asociados a la actividad volcánica.
A palaeomagnetic study of Syrian volcanic rocks of Miocene to Holocene age
Authors: Abou Deeb J. M. , Otaki M. M. , Tarling D. H. , Abdeldayem A. L.
Published: May 2021

Rocas volcánicas del Mioceno y más jóvenes de varias localidades de Siria muestran polaridades normales y reversas después de desmagnetización térmica. Las similitudes en las direcciones medias de magnetización pueden ser usadas para establecer correlación entre lavas. Las polaridades observadas sugieren que algunas de las lavas del Cuaternario son más antiguas de lo propuesto en cartografías previas. Los sitios con direcciones medias reversas e intermedias presentan una dispersión angular mayor que la observada en los sitios de direcciones normales. La dispersión media global es mayor que la esperada de acuerdo con los modelos de variación secular simulados con deriva al oeste o este y el campo dipolar inclinado actual. Los sitios de polaridad normales tienen magnetizaciones dos veces mayores que los sitios de polaridad reversa e intermedia. La dirección media para los sitios del Cuaternario es consistente con el campo dipolar axial, pero para los sitios del Mioceno, con direcciones antipodales de polaridades opuestas, tienen una inclinación media más somera que la dipolar, lo que sugiere un efecto geomagnético o inclinación regional tectónica.
Mathematics of oil spills: existence, uniqueness, and stability of solutions
Authors: Skiba Yuri N. , Parra Guevara David
Published: May 2021

Se modela la propagación de petróleo derramado como una mancha bidimensional en la superficie de una área limitada del mar, cuando hay un flujo no nulo del petróleo a través de la frontera abierta. Se sugieren las condiciones para las partes de entrada y salida de la frontera del dominio, y se demuestra la existencia y la unicidad de la solución del problema de transporte de petróleo y de su adjunto en las clases de funciones generalizadas. También se muestra que las soluciones de cada uno de los problemas son estables en la presencia de errores en las condiciones iniciales, y en la tasa de emisión de petróleo desde el buque accidentado. Se sugieren las estimaciones directas y adjuntas de la concentración de petróleo para evaluar las consecuencias de un accidente que involucre el derrame de petróleo.
Framboidal magnetic minerals and their possible association to hydrocarbons: La Victoria oil field, southwestern Venezuela
Authors: Aldana M. , Costanzo-Alvarez V. , Vitiello D. , Colmenares L. , Gómez G.
Published: May 2021

En los últimos años, las anomalías detectadas en las propiedades magnéticas totales (e.g. Susceptibilidad (MS) y Magnetismo Remanente Natural (NRM)) medidas en estudios aeromagnéticos o en muestras de superficie sobre campos petrolíferos, han sido atribuidas a la presencia, en niveles someros, de agregados esferoidales de magnetita autigénica, producto del ambiente reductor inducido por el reservorio subyacente. De verificarse la relación causal entre las anomalías medidas en las propiedades magnéticas y la presencia de hidrocarburos, este tipo de estudio podría ser utilizado como una herramienta rápida, efectiva y económica para estimar la distribución de crudos en zonas en explotación. En este trabajo se realiza una validación de la técnica, utilizando muestras en profundidad de tres pozos (dos productores, uno no productor), pertenecientes al campo La Victoria, Edo. Apure, Venezuela. Los registros de MS y NRM correspondientes a niveles someros (hasta 1500 metros de profundidad), se complementan con estudios de difracción de Rayos X, Microscopía Electrónica (Transmisión y Barrido), curvas de Termoremanencia, Remanencia Magnética Isotermal y Experimentos de Lowrie. Los resultados obtenidos confirman una concentración mayor de magnetita en los niveles anómalos, presente en forma de agregados esferoidales, respecto a otros minerales magnéticos. Se estaría confirmando así una relación causal entre anomalías en las propiedades magnéticas, medidas en niveles someros, y la presencia de hidrocarburos causantes de un ambiente reductor que favorece la nucleación y recristalización de agregados esferoidales de magnetita autigénica, planteándose la potencialidad de este tipo de estudios como una herramienta para la exploración y posible evaluación de zonasprospectivas.
Numerical modeling of high-temperature deep wells in the Cerro Prieto geothermal field, Mexico
Authors: García A. , Ascencio F. , Espinosa G. , Santoyo E. , Gutiérrez H. , Arellano V.
Published: May 2021

Se presenta un estudio de modelación numérica sobre las características de producción de tres pozos geotérmicos profundos del campo de Cerro Prieto, en cuya parte Este se perforaron seis pozos profundos (profundidad promedio de 4000 m) hace 15 años. El objetivo de este estudio es el cálculo de las características de producción de estos pozos para determinar si su incapacidad para mantener la producción se debió a (i) las pérdidas de calor del pozo, (ii) la influencia del diámetro de la tubería de producción, (iii) el efecto transitorio de la temperatura durante los primeros días de producción o (iv) la entrada de flujos secundarios de baja entalpía. Se desarrolló una nueva versión del simulador de flujo llamado GEOPOZO v2.0 que resuelve las ecuaciones de conservación de masa, momento y energía para flujo estable o transitorio de una y dos fases en pozos geotérmicos. Se encontró que los tres pozos estudiados deberían ser capaces de mantener la producción. Las pérdidas de calor tempranas fueron tan altas que los pozos requieren ser inducidos y solamente pueden mantener la producción después de varios días de inducción. La comparación con datos medidos en el pozo M-202 permitió la evaluación de los efectos de zonas secundarias de alimentación. Los ajustes logrados entre los perfiles medidos y calculados en el caso de una zona secundaria de alimentación permitió inferir que la entrada de agua más fría fue responsable de que el flujo en este pozo se detuviera.
Utilization of Information Technology in Women Boarding High Schools to Support Learning Activities
Authors: Suharso Wildan , Imron Moch , Rakhmah Ekanita , Hanif Lathifah , Chandranegara Didih Rizki
Published: May 2021

The use of information technology media becomes very important when the needs are increasingly complex or schools are in the development stage because with the use of information technology media teaching and learning activities can be carried out quickly and centrally. In female boarding schools, the use of technology really needs to be considered considering the activities that are so dense both intraculricular and extracurricular activities, on the other hand, Aisyiyah Boarding School Malang High School has quite high activities outside the school, this is evidenced by the many achievements they have from the local to the national level. . At the time this research was conducted, all countries in the world were experiencing the Covid-19 pandemic and required all activities to run online, so this research was conducted to determine the use of information technology at ABSM High School to support teaching and learning activities. The variables used in the study include new desire and interest in learning, motivation and interest in learning, understanding in learning. The research method includes research assumptions and definitions, data collection, analysis of initial conditions, preparation of questionnaires, descriptive analysis. Respondents were students of class X, XI, and XII of SMA ABSM, with a total of 30 respondents who were all ABSM high school students. The results show that in general the use of information technology media can support the teaching and learning process in the school environment for both intraculricular and extracurricular activities.
Large-scale Blended Learning Design in an Undergraduate Interprofessional Course in Norway: Students’ Perspectives from an Exploratory Study
Authors: Almendingen Kari , Molin Marianne , Šaltytė Benth Jūratė
Published: May 2021

Background: The purpose of this study was to assess learning outcomes and student satisfaction after participating in a large-scale interprofessional (IPL) blended learning course.Methods and findings: In this cross-sectional study, students from health, social care, and teacher education programs completed two questionnaires. The majority were satisfied with the blended learning approach. The IPL group discussions resulted in learning outcomes that were two times higher than those from traditional instruction, including lectures and assignments. Health and social care students reported lower learning outcomes and satisfaction than teacher education and child welfare students (p < 0.05).Conclusions: The study demonstrated the feasibility of the blended learningapproach. However, IPL activities that are explicitly inclusive for all studentsshould be created for future courses.
“Nunca se abandona a poesia nem num parque, nem na vida”, Vamos comprar um poeta, de Afonso Cruz
Authors: Dos Santos Menezes Carlos Roberto
Published: May 2021

Resenha de:
CRUZ, Afonso. Vamos comprar um poeta. Porto Alegre: Dublinense, 2020.
Branca de Neve, de Lídia Jorge: sobre mulheres e princesas
Authors: Costa Veronica Prudente , Wankler Cátia Monteiro
Published: May 2021

Este artigo faz uma leitura intertextual da personagem Maria da Graça, do conto “Branca de Neve”, de Lídia Jorge, com a Branca de Neve do conto de fadas “Branca de Neve e os Sete Anões” dos Irmãos Grimm. Como suporte teórico, recorremos as relações dos contos de fadas com a psicanalise e a uma interface com os estudos de gênero. No conto clássico, a personagem principal e uma jovem, frágil, que “necessita” da proteção masculina, e injustiçada pela madrasta, mulher ciumenta e invejosa, mas forte e empoderada. Já Maria da Graça possui os dois lados do feminino dos contos de fadas: e forte, independente e ambiciosa como a “bruxa”, e inocente como a “princesa”, posto que não malda a atitude dos meninos que a seguem e, assim como Branca de Neve, ao se ver só, precisa lutar pela sobrevivência. A primeira conta com o apoio dos anões, enquanto a segunda e lesada pelos meninos, os “anões”. Em crônica de 2020, Lídia Jorge reflete sobre a importância de expor condições de desigualdade, violência e outras situações que inferiorizam as mulheres e ressalta a urgência dessa discussão, considerando que “a luta feminista e uma questão de equilíbrio para a humanidade”. O intertexto aqui abordado faz pensar nos desafios de Maria da Graça para ser bem-sucedida e que, como tantas mulheres “de carne e osso”, e independente e se estabelece com segurança num ambiente historicamente marcado pela predominância masculina. No entanto, ela não está isenta da violência, física ou simbólica, que espreita em cada canto.
Apresentação
Authors: Pequeno Tatiana , Rodrigues Daniel
Published: May 2021

Apresentação à Abril 26.
PERANAN BRAND IMAGE DAN BRAND CREDIBILITY DALAM MENINGKATKAN LOYALTY INTENTION MELALUI BRAND COMMITMENT
Authors: Keni Keni , Callista Callista
Published: May 2021

The purpose of this research is to examine whether 1) brand image can predict loyalty intention 2) brand credibility can predict loyalty intention 3) brand credibility can predict brand commitment 4) brand commitment can predict loyalty intention 5) brand commitment mediates the effect of brand credibility on loyalty intention. Sample was selected using convenience sampling method amounted to 173 respondents. Data processing techniques using structural equation modeling what helped by Smart PLS 3.2.7 program. The result of this study shows that brand credibility, and brand commitment have significant effect to predict loyalty intention, but brand image doesn’t, brand credibility has significant effect to predict brand commitment, and brand commitment mediates the effect of brand credibility on loyalty intention.
Analisis Beban Kerja Fisiologis dan Psikologis Menggunakan Metode Cardiovascular Load dan NASA TLX di PJT II Jatiluhur
Authors: Akbar Muhammad Ali , Ramdhani Rizky Fajar , Nuraeni Sri
Published: May 2021

Perum Jasa Tirta II is a State-Owned Enterprise (BUMN) in the form of a Public Company engaged in providing raw water and electricity for the public benefit this Perum Jasa Tirta II, and there are various units. One of them is the Jatiluhur Tourism and AMDK Business Unit, which produces various types of demineralized drinking water, namely gallons, 600 ml bottles, 330 ml bottles, and 240 ml cups. The implementation of 3 shifts to meet production targets and activities carried out manually at a 40 m / s in a standing position and a 5 second cycle time process is one of the causes of problems in Jatiluhur AMDK, especially for company employees. The subjects of this study were 18 employees in the production department. The workload measured is physiological and psychological. The physiological workload is measured based on the cardiovascular load (CVL) method, and the NASA measures psychological workload –Task Load Index (NASA– TLX) method. The purpose of this study was to determine the classification of physiological and psychological workloads in Jatiluhur AMDK and the causes of these physiological and psychological workloads. Based on the CVL analysis results, the number of employees who received a physiological workload that needed improvement was 10 out of 18 employees, with the highest percentage of 38.43% and the lowest of 21.73%. Very high work, 12 employees with a high category. With a percentage of 33.33% for very high workloads and 66.67% for high workloads.
The Collaborative Scholarship Intensive: A Research-Intensive Course to Improve Faculty Scholarship
Authors: Buffington Angela L.H. , Lange Carol , Bakker Caitlin , Nanney Marilyn Susie , Roberts William O. , Berge Jerica M. , Loth Katie A.
Published: May 2021

Background and Objectives: Learning to balance the clinical, educational, and scholarly elements of an academic career is challenging for faculty. To increase research output amongst family medicine faculty with limited to no publications, we developed the Collaborative Scholarship Intensive (CSI) to provide participants with intensive instruction in research methodology coupled with structured writing support and protected time for writing.
Methods: The CSI was developed by the University of Minnesota Department of Family Medicine and Community Health as a six-session faculty development program that enrolled 23 participants in its first three classes.
Results: Findings reveal that faculty participants significantly improved their pre- to postcourse self-ratings of 12 research competencies, and significantly increased their scholarly output.
Conclusions: Our CSI faculty development program successfully engaged clinical faculty in a collaborative research program. Our results suggest that a program focused on intensive instruction in research methodology coupled with structured writing support and protected writing time may be a model for faculty development in other academic departments.
Why Family Medicine Program Directors Leave Their Position
Authors: Fernald Douglas , Hester Christina M. , Brown Steven R.
Published: May 2021

Background and Objectives: Family medicine residency program directors (PD) oversee the training of every new family physician in the United States. The median tenure of family medicine PDs is 4.5 years, and factors relating to length of tenure and reasons for departure are not well known. This exploratory study examined why family medicine PDs leave their position.
Methods: We conducted in-depth interviews with family medicine PDs who recently left their director position. Semistructured and structured questions asked about their PD experience and factors contributing to stepping away from the PD role. We analyzed answers quantitatively and qualitatively.
Results: When comparing cases with longer (>6 years) and shorter tenures (≤6 years), 25 PDs described differing pathways but few major differences in why they left the position. The two groups were distinguished more by their similarities than their differences. The majority left voluntarily due to a combination of factors, not a single factor. Most PDs left the position because of their desire and opportunities to move up, move over, or move on, and not because of dissatisfaction with the job. Succession plans helped with PD decisions to leave the position, knowing that the program was in good hands.
Conclusions: Family medicine PDs left the position due to multiple factors primarily related to career pathway choices and not solely due to demands of the job. Additional research with PDs of very short tenures and long tenures may yield further details about sustaining PDs in residency education to successfully train the next generation of family physicians.
PERBEDAAN HASIL BELAJAR MATEMATIKA PADA PENERAPAN MODEL PEMBELAJARAN DISCOVERY LEARNING DENGAN MODEL PEMBELAJARAN INQUIRY
Authors: Sumampou Petra C. M. , Ismaimuza Dasa , Hadjar Ibnu
Published: May 2021

Abstrak: Tujuan penelitian ini adalah untuk mengkaji dan menganalisis perbedaan hasil belajar matematika antara siswa yang belajar menggunakan model pembelajaran discovery learning dengan siswa yang belajar menggunakan model pembelajaran inquiry di kelas X SMA Negeri 2 Palu, baik secara keseluruhan, antara siswa berkemampuan tinggi, antara siswa berkemampuan sedang dan antara siswa berkemampuan rendah. Hipotesis yang diajukan dalam penelitian ini yaitu terdapat perbedaan hasil belajar matematika antara siswa yang belajar menggunakan model pembelajaran discovery learning dengan siswa yang belajar menggunakan model pembelajaran inquiry di kelas X SMA Negeri 2 Palu, baik secara keseluruhan, antara siswa berkemampuan tinggi, antara siswa berkemampuan sedang dan antara siswa berkemampuan rendah. Subjek penelitian berjumlah 72 siswa yang terdiri dari 36 siswa kelas X MIA 3 sebagai kelas yang belajar menggunakan model pembelajaran inquiry dan 36 siswa kelas X MIA 5 yang belajar menggunakan model pembelajaran discovery learning. Materi yang dipelajari oleh siswa yaitu Sistem Persamaan Linear Tiga Variabel, Relasi dan Fungsi. Berdasarkan hasil perhitungan uji hipotesis untuk α = 0,05 diperoleh p > α untuk semua hipotesis, sehingga H1 ditolak dan H0 diterima untuk semua hipotesis. Dapat disimpulkan bahwa tidak terdapat perbedaan hasil belajar matematika antara siswa yang belajar menggunakan model pembelajaran discovery learning dengan siswa yang belajar menggunakan model pembelajaran inquiry di kelas X SMA Negeri 2 Palu, baik secara keseluruhan, antara siswa berkemampuan tinggi, antara siswa berkemampuan sedang dan antara siswa berkemampuan rendah.

Kata Kunci : perbedaan, hasil belajar, discovery learning, inquiry, sistem persamaan linear tiga variabel, relasi dan fungsi.
PENERAPAN METODE PENEMUAN TERBIMBING PADA MATERI HUBUNGAN ANTAR GARIS DAN SUDUT
Authors: Firmansyah Firmansyah , Jaeng Maxinus , Murdiana I Nyoman
Published: May 2021

Abstrak: The purpose of this study is to describe the application of guided discovery method that can improve student learning outcomes VII A grade SMPN 18 Palu on the material connection between lines and angles. The type of research used is classroom action research (CAR). The research design refers to the research design of Kemmis and Mc. Taggart consists of four components: 1) planning, 2) action, 3) observation and 4) reflection. The type of data used is qualitative data and quantitative data with data collection techniques are observation, interviews, field notes and tests. This research was conducted in two cycles. The results showed that the application of guided discovery learning methods can improve student learning outcomes by following the steps of guided discovery methods are: 1) the formulation of the problem, the researcher explains the subject matter regarding the relationship between lines and angles, the researcher distributes student activity sheet which contains questions concerning the material relations between lines and angles that must be completed by students. 2) data processing and constructing conjectures, students process data in the student activity sheet and arrange conjectures. 3) Examining the conjecture, the researcher examines the conjectures that have been prepared by students and provides guidance as needed if there is an error in compiling the conjecture. 4) verbalizing the conjecture, student representatives from each group present the results of the conjecture obtained and the researcher guides students to make correct conclusions about the material relations between lines and angles. 5) feedback, giving practice questions about the material of relationships between lines and angles to students. The results of this study indicate that classical learning completeness students in the cycle I is 50% and increased in the  cycle II is 77%.