bluuebunny/crossref_metadata_2025 huggingface dataset:
Risks Of Sharia Commercial Bank In Indonesia: Analysis Of Internal And External Factors
Authors: Aufa Erlinda Kurnia , Dja'akum Cita Sary
Published: June 2021

Purpose - This study aims to analyze the effect of inflation, gross domestic product (GDP), capital adequacy ratio (CAR), and financing to deposit ratio (FDR) to non performing financing (NPF) at Islamic Commercial Banks in Indonesia.Method - The research approach used is a quantitative approach. Determination of samples is done by purposive sampling method. The data used is secondary data, obtained from publication reports on the official website of each Sharia Commercial Bank, Bank Indonesia, and the Central Statistics Agency. The population in this study were all Islamic Commercial Banks registered in the Statistics of Islamic Banking in Indonesia for the period 2013-2017. Based on the specified criteria, five Sharia Commercial Banks were obtained as research samples. This study uses panel data regression analysis with the Fixed Effects Model approach which is processed through the Eviews 10 program.Result - The results of hypothesis testing show that partially Inflation has a positive but not significant effect on NPF, GDP has a significant negative effect on NPF, CAR has a negative but not significant effect on NPF, and FDR has a significant negative effect on NPF. Simultaneously inflation, GDP, CAR, and FDR have a significant effect on NPF.Implication - This study uses all data from commercial Islamic bank.Originality - This study analyzes the determining factors that influence financing risks from both internal and external factors.
The Role Of Intellectual Capital In Modernizing The Influence Of Good Corporate Governance And Sharia Compliance Of Sharia Banks
Authors: Azizah Iva Nur , Senjani Yayu Putri
Published: June 2021

Purpose - Improved financial performance of Islamic banks can be done by improving the system of corporate governance and sharia compliance. In addition to a good corporate governance system and sharia compliance, other factors such as intellectual capital in sharia banks can also improve financial performance. The purpose of this study was to determine the role of intellectual capital in moderating the effect of good corporate governance and sharia compliance on financial performance of sharia banks in 2013-2017.Method - Sampling technique used is purposive sampling. The analytical technique used is panel data regression test with software Eviews 9.Result - It is found that good corporate governance and Islamic Income Ratio have an effect on the financial performance of sharia banks which is poxied by return on assets. Besides that, intellectual capital modernizesgood corporate governance and Islamic Income Ratio on the financial performance of sharia banks, but it does not modernize sharia compliance which is proxied with Profit Sharing Ratio (PSR) and Zakat Performing Ratio (ZPR).Implication - This study uses the data from 14 islamic commercial banks in Indonesia.Originality - The papers look into the role of intellectual capital variables in the relationship of good corporate governance and sharia compliance to the financial performance.
The Effects of Different Photoactive Dyes on the Adhesion of an Epoxy Resin-based Root Canal Sealer
Authors: OZKOCAK İsmail , GOKTURK Hakan , CANSU KARA İrem
Published: June 2021

Aim: In this study, we aimed to evaluate the effects of four different photoactive dyes on the dentin adhesion of an epoxy resin-based root canal sealer.Methods: Sixty maxillary central incisors were used. Root canals were prepared up to the size Reciproc #40, and 2.5 mL of 5% NaOCl was used between each file. The teeth were divided into six groups: Group 1, distilled water (the control group); Group 2, methylene blue; Group 3, toluidine blue; Group 4, indocyanine green; Group 5, Congo red; and Group 6, diode laser. After final irrigation, each canal was irrigated with 2.5 mL of photoactive dye. Laser irradiation was applied for 1 min (940 nm wavelength, continuous mode, 1W). The canals were obturated with epoxy resin-based sealer and gutta-percha. Sections measuring 2 mm in thickness were taken from the apical, middle, and coronal thirds of the roots for the push-out test.Results: Although the photoactive dyes caused a decrease in the sealer bond strength values, there was no statistically significant difference from the control group or between the dyes. Diode laser irradiation increased bond strength, but there was again no significant difference. Bond strength values decreased from the coronal to the apical region (5.89±1.19, 3.93±0.76, and 3.18±0.63 MPa, respectively).Conclusion: We observed that the use of photoactive dyes to support root canal disinfection had no negative effect on the bond strength of a resin-based sealer.
Natureza e corpo na segunda fase de Merleau-Ponty
Authors: Camargo Jeovane
Published: June 2021

Procuramos mostrar como Merleau-Ponty, nos cursos que formam A Natureza, compreende a natureza e o corpo humano. Além disso, tentamos apresentar também como a relação interna entre a natureza e o corpo se realiza por meio da noção de desejo.
A Culturally Immersive Approach to Teaching Cultural Tolerance in a Pandemic
Authors: Hampton-Garland Pamela G. , Quick Melodee S. , Ndubuisi Catherine O.
Published: June 2021

This paper is one approach to teaching graduate students in education to become culturally empathetic. This paper was written when America’s racial divide expanded and Black and Brown Americans were killed by police who were not charged, and White American nationalists who want to “Make America Great Again”. The pandemic that locked down our nation and stopped business as usual left people isolated and idol thus creating a petri dish for civil unrest to grow. The population of adult educators was immersed in other cultures through critically analyzing ethnographies, memoirs, through the lens of cultural theories. The purpose of this study was to demonstrate that graduate adult education students can develop empathy for populations, they will encounter within their spaces of work that they may feel oppose their access to opportunity. Participants boast about how the narratives reminded them of the common plight amongst populations previously viewed unfavorably. Within these themes, learners acknowledged that the process had transformed how they think about the other.
A Comprehensive Review on Hydrogels
Authors: Singh Inderbir , Rahman Md. Habibur , Chopra Hitesh , Kumar Sandeep , Bhattacharya Tanima , Akter Rokeya , Kabir Md. Tanvir
Published: June 2021

The conventional drug delivery systems have a long list of repeated dosing and toxicity issues. The hydrogels solve these issues as they minimize such activities and optimize therapeutic benefits. The hydrogels possess tunable properties that can withstand degradation, metabolism, and control release moieties. Some areas of applications of hydrogels involve wound healing, ocular systems, vaginal gels, scaffolds for tissue and bone engineering, etc. They comprise about 90% of the water that makes them suitable bio-mimic moiety. Here, we present an extensive review of various perspectives of hydrogels, along with their applications.
Poloxamer 188 (P188), A Potential Polymeric Protective Agent for Central
Nervous System Disorders: A Systematic Review
Authors: Chen Win Ning , Shaikh Mohd Farooq , Bhuvanendran Saatheeyavaane , Date Abhijit , Ansari Mohammad Tahir , Radhakrishnan Ammu Kutty , Othman Iekhsan
Published: June 2021

:

Poloxamer 188 (P188) is an FDA-approved biocompatible block copolymer composed of
repeating units of Poly(Ethylene Oxide) (PEO) and poly(propylene oxide) (PPO). Due to its
amphiphilic nature and high Hydrophile-Lipophile Balance (HLB) value of 29, P188 is used as a
stabilizer/emulsifier in many cosmetics and pharmaceutical preparations. While the applications of
P188 as an excipient are widely explored, the data on the pharmacological activity of P188 are
scarce. Notably, the neuroprotective potential of P188 has gained a lot of interest. Therefore, this
systematic review is aimed at summarizing evidence of neuroprotective potential of P188 in CNS
disorders. The PRISMA model was used, and five databases (Google Scholar, Scopus, Wiley
Online Library, ScienceDirect, and PubMed) were searched with relevant keywords. The search
resulted in 11 articles, which met the inclusion criteria. These articles described the protective
effects of P188 on traumatic brain injury or mechanical injury in cells, neurotoxicity, Parkinson’s
disease, Amyotrophic lateral sclerosis (ALS), and ischemia/ reperfusion injury from stroke. All the
articles were original research in experimental or pre-clinical stages using animal models or in vitro
systems. The reported activities demonstrated the potential of P188 as a neuroprotective agent in
improving CNS conditions such as neurodegeneration.
Cosmopolitanism and the Roman Empire.
Authors: Pieper Christoph
Published: June 2021

My article explores the tension between idealized cosmopolitan ideas, of a single citizenry for all people in the world, and imperial Roman nationalism between the late Roman Republic and the Italian Renaissance. In the form of three case studies (and without any claim that those are representative for the development) it focusses on three important thinkers whose work shows affinity with cosmopolitan discourse, but who at the same time also explicitly reflected on the political realities they were living in: Cicero, Augustine, and Lorenzo Valla. All three favour cosmopolitan ideals over political egoism, and all three reflect on whether and how the historical reign under which they are living can live up to the philosophical or theological ideals they advocate. Finally, all three authors do not only share similar discursive patterns, but also react to each other intertextually (links will be mentioned especially between Cicero and Augustine and between Augustine and Valla). Thus, while all three are distinct in their argument and use cosmopolitan concepts for hugely different aims, the comparison can share light both on the boundaries and the discursive power of the concept in Latin literature.
Evaluation Framework for Successful Artificial Intelligence–Enabled Clinical Decision Support Systems: Mixed Methods Study
Authors: Ji Mengting , Genchev Georgi Z , Huang Hengye , Xu Ting , Lu Hui , Yu Guangjun
Published: June 2021

Background

Clinical decision support systems are designed to utilize medical data, knowledge, and analysis engines and to generate patient-specific assessments or recommendations to health professionals in order to assist decision making. Artificial intelligence–enabled clinical decision support systems aid the decision-making process through an intelligent component. Well-defined evaluation methods are essential to ensure the seamless integration and contribution of these systems to clinical practice.

Objective

The purpose of this study was to develop and validate a measurement instrument and test the interrelationships of evaluation variables for an artificial intelligence–enabled clinical decision support system evaluation framework.

Methods

An artificial intelligence–enabled clinical decision support system evaluation framework consisting of 6 variables was developed. A Delphi process was conducted to develop the measurement instrument items. Cognitive interviews and pretesting were performed to refine the questions. Web-based survey response data were analyzed to remove irrelevant questions from the measurement instrument, to test dimensional structure, and to assess reliability and validity. The interrelationships of relevant variables were tested and verified using path analysis, and a 28-item measurement instrument was developed. Measurement instrument survey responses were collected from 156 respondents.

Results

The Cronbach α of the measurement instrument was 0.963, and its content validity was 0.943. Values of average variance extracted ranged from 0.582 to 0.756, and values of the heterotrait-monotrait ratio ranged from 0.376 to 0.896. The final model had a good fit (χ262=36.984; P=.08; comparative fit index 0.991; goodness-of-fit index 0.957; root mean square error of approximation 0.052; standardized root mean square residual 0.028). Variables in the final model accounted for 89% of the variance in the user acceptance dimension.

Conclusions

User acceptance is the central dimension of artificial intelligence–enabled clinical decision support system success. Acceptance was directly influenced by perceived ease of use, information quality, service quality, and perceived benefit. Acceptance was also indirectly influenced by system quality and information quality through perceived ease of use. User acceptance and perceived benefit were interrelated.
Public Awareness and Utilization of 937-Telephone Health Services in the Kingdom of Saudi Arabia Before and During the COVID-19 Pandemic: Longitudinal Study
Authors: Al-Rayes Saja A , Alumran Arwa , Aljabri Duaa , Aljaffary Afnan , Aldoukhi Ethar , Alahmedalyousif Zainab , Al Madani Reem
Published: June 2021

Background

Telehealth plays a key role in supporting health care systems and influencing methods of health care delivery. Government laws and medical operating protocols have been largely modified to provide remote care to reduce social contact and ensure a safer patient environment. In the Kingdom of Saudi Arabia (KSA), the Ministry of Health (MOH) introduced several forms of telemedicine as alternatives to face-to-face consultations in clinical settings.

Objective

This study aimed to assess the awareness and utilization of telehealth services before and during the COVID-19 outbreak in the KSA.

Methods

In this longitudinal study, we compared the awareness and utilization of 937-telephone health services (ie, a toll-free telephone service to provide medical and administrative health care services at any time for the population) before and during the COVID-19 outbreak in the KSA. Using a convenience sampling technique, a validated web-based questionnaire was distributed on social media platforms (Facebook, Twitter, and WhatsApp) at 2 timepoints: before (February 2019) and during (May 2020) the COVID-19 pandemic.

Results

The study sample comprised a total of 1961 participants who completed the questionnaire before (n=1303, 66%) and during (n=658, 33%) the COVID-19 pandemic. Both awareness (before=46% vs during=78%) and utilization (before=42% vs during=48%) of the 937-telephone health services increased significantly during the pandemic (P<.001). No significant association of the awareness or utilization of 937-telephone health services before and during the COVID-19 pandemic was found with respect to the participants’ age, education level, having children, or having any chronic disease.

Conclusions

Our findings indicate significant increases in the awareness and utilization of 937-telephone health services during the early days of the COVID-19 pandemic, suggesting an increase in public acceptance of the service and providing evidence of an equitable telemedicine service for the population. Further studies are needed to provide a deeper understanding of the barriers and facilitators to the use of 937-telephone health services for different groups of the population.
Digital Technologies for Monitoring and Improving Treatment Adherence in Children and Adolescents With Asthma: Scoping Review of Randomized Controlled Trials
Authors: Milne-Ives Madison , Lam Ching , Meinert Edward
Published: June 2021

Background

Inadequate pediatric asthma care has resulted in potentially avoidable unplanned hospital admissions and morbidity. A wide variety of digital technologies have been developed to monitor and support treatment adherence in children and adolescents with asthma. However, existing reviews need to be updated and expanded to provide an overview of the current state of research on these technologies and how they are being integrated into existing health care services and care pathways.

Objective

This study aims to provide an overview of the current research landscape and knowledge gaps regarding the use of digital technologies to support the care of children and adolescents with asthma.

Methods

This study was structured according to the PRISMA-ScR (Preferred Reporting Items for Systematic Reviews and Meta-Analyses extension for Scoping Reviews) and Population, Intervention, Comparator, Outcome, and Study frameworks. Five databases (PubMed, the Cochrane Central Register of Controlled Trials, Web of Science, Embase, and PsycINFO) were systematically searched for studies published in English from 2014 onward. Two reviewers independently screened the references and selected studies for inclusion based on the eligibility criteria. Data were systematically extracted per research question, which were synthesized in a descriptive analysis.

Results

A wide variety of study characteristics, including the number and age of participants, study duration, and type of digital intervention, were identified. There was mixed evidence for the effectiveness of the interventions. Of the 10 studies that evaluated treatment adherence, 7 (70%) found improvements, but the evidence was inconsistent for asthma control (6/9, 67% of studies reported improvement or maintenance, but only 1 was significantly different between groups) and health outcome variables (5/9, 56% of studies found no evidence of effectiveness). The 6 studies that examined patient perceptions and assessments of acceptability and usability generally had positive findings.

Conclusions

A wide range of digital interventions are being developed and evaluated to support the monitoring and treatment adherence of children and adolescents with asthma. Meta-analyses are inhibited by the use of samples with a variety of overlapping age ranges; a theoretical framework for evaluating specific age groups would aid comparison between studies. Most studies found significant evidence for improved adherence to treatment or medications, but there was mixed evidence of the impact of the digital interventions on asthma control and other health outcomes. There are gaps in the literature relating to cost-effectiveness and integration with existing clinical care pathways. This study will be necessary to determine which digital interventions for children and young people with asthma are worth supporting and adopting in the clinical care pathways.
The Beat Goes On: Stimulant Use and HIV in the Era of COVID-19 (Preprint)
Authors: Petrova Mariya , Miller-Perusse Michael , Hirshfield Sabina , Carrico Adam , Horvath Keith
Published: June 2021

BACKGROUND

Evidence suggests that economic, social and psychological circumstances brought about by the coronavirus pandemic may have serious impact on behavioral health. Men who have sex with men (MSM) are disproportionally impacted by HIV and stimulant use, the co-occurrence of which heightens HIV transmission risk and undermines the national treatment as prevention efforts for ending the HIV epidemic. There is a paucity of information regarding the potential impact of the COVID-19 pandemic on the substance use and HIV medication adherence of this key vulnerable population – MSM who use stimulants and are living with HIV.

OBJECTIVE

The aim of this qualitative study was to identify ways in which the coronavirus pandemic has affected the stimulant use and antiretroviral therapy (ART) adherence among a sample of MSM living with HIV.

METHODS

Two focus groups were conducted in August 2020 via HIPAA-compliant video-conferencing technology. Potential participants from a suitable research participant registry at SUNY Downstate Health Sciences University were invited and screened for study participation based on inclusion criteria. A semi-structured interview guide was followed. A general inductive approach was used to analyze the data. Findings in two general areas of interest, the impact of COVID-19 on stimulant use and ART adherence, emerged directly from the raw data.

RESULTS

A total of 12 ethnically diverse participants over the age of 25 took part in the study. Results were heterogeneous in terms of the effects of the pandemic on both stimulant use and ART adherence among MSM living with HIV. Some men indicated increased or sustained stimulant use and ART adherence and others reported decreased stimulant use and ART adherence. Reasons for these behavioral changes ranged from concerns about their own health and that of their loved ones to challenges brought about by the lack of daily structure during the lockdown phase of the pandemic and emotion regulation difficulties

CONCLUSIONS

The COVID-19 pandemic has had differential impact on stimulant use and ART medication adherence among MSM living with HIV. The reasons for behavioral change identified by this study may be salient intervention targets to support ART medication adherence and lower stimulant use among MSM in the aftermath of the coronavirus pandemic, as well as beyond.

CLINICALTRIAL
Mutaciones al Estado de Derecho
Authors: Montero Cartes Cristian Ismael
Published: June 2021

On the occasion of the dictation of the Judgment of the Court of Justice of the European Union in the matter called the "legislative vacation", some of the questions that it has raised in the doctrine are examined; notably, the theory of the reserve of Administration and administrative discretion. Finally, the author proposes that this ruling responds to a progressive constitutional mutation that has been taking place in the internal legal systems of the Member States as a result, in this case, of the transfer of competences to the European Union, which entails modifying –in the matters that have been intervened by said supranational instance– the role that the traditional conception assigns to the legislative power.
Engagement hacia un producto vs. hacia una marca: una escala para el contexto mexicano
Authors: Vera Martínez Jorge , Ornelas Sánchez Sidney
Published: June 2021

La atención hacia el concepto de engagement del consumidor se ha incrementado recientemente como un factor relevante en mercadotecnia. Esto ha motivado a realizar diversos estudios con el objetivo de lograr una mejor definición y medición de este constructo. El engagement se diferencia de conceptos como el involucramiento y la participación, siendo también un antecedente a variables como satisfacción y lealtad de marca. En este artículo, se propone y se pone a prueba la hipótesis de que existe una diferencia entre el grado de engagement (en sus tres dimensiones) hacia una categoría de producto y el grado de engagement hacia una marca particular dentro de esta categoría de producto. Para poner esta hipótesis a prueba, se presenta el proceso de adaptación y depuración de una escala para medir engagement en el contexto mexicano de consumo de café en taza. Se presentan los resultados de pruebas empíricas
con las que verificó la confiabilidad y validez de la escala. Mediante pruebas de validez predictiva se corrobora al engagement como un antecedente de la satisfacción y de la lealtad de marca. Finalmente
se presentan evidencias que confirman la hipótesis sobre la separación perceptual del engagement hacia la categoría del producto y hacia una marca.
Asistencia y protección consular de México frente a la crisis por COVID-19: el caso en España
Authors: Noguez Tinoco Isaías Gonzalo
Published: June 2021

El artículo presenta un análisis de las acciones realizadas por el Gobierno de México para asistir la repatriación de las personas mexicanas afectadas en España, ante la emergencia sanitaria originada por la COVID-19. Es una investigación descriptiva que busca abrir la discusión y ser una posible referencia para la indagación de datos e información en el campo de la diplomacia consular. El texto muestra los desafíos y la falta de mecanismos y capacidad institucional para prever y gestionar la amenaza que significó la COVID-19 en todo el mundo. El caso revisado permite presentar algunos apuntes para diseñar e implementar nuevos programas y herramientas para afrontar futuros desafíos de esta dimensión.
Biodegradación de espumas plásticas por larvas de insectos: ¿una estrategia sustentable?
Authors: Rodríguez-Carreón Anlui , Ortiz-Rivera Yuridia , Hernández-Peña Claudia Carolina , Figueroa Coyolxauhqui
Published: June 2021

En la actualidad, la mayoría de las actividades humanas dependen en gran medida del uso de los plásticos, cuya producción y consumo han aumentado considerablemente en las últimas décadas. La utilización de productos plásticos ha tenido impactos positivos para nuestro bienestar; sin embargo, los efectos negativos derivados de su disposición inapropiada son motivo de gran preocupación, especialmente durante la actual emergencia sanitaria provocada por la COVID-19, en la que el uso de plásticos por una ocasión ha aumentado drásticamente. A pesar de que algunos polímeros plásticos como el polietileno (PE) y el poliestireno (PS) pueden reciclarse, la alta demanda energética y tecnológica, el empleo de sustancias potencialmente tóxicas y la baja rentabilidad económica del proceso, vuelven a esta opción poco viable. Ante esta situación, el tratamiento biológico de plásticos a través de organismos degradadores del PE y del PS, como las larvas de la harina y de la cera, surge como una alternativa prometedora y ha llamado la atención de investigadores alrededor del mundo. El objetivo de esta revisión es sintetizar los avances más recientes en el campo de la biodegradación de plásticos por larvas de insectos y un análisis de las tendencias actuales y futuras en esta creciente área de investigación.
Los reservorios naturales y sus características
Authors: Eriksson E.
Published: June 2021

Se denomina en Geoquímica reservorio a la materia acumulada por la naturaleza y a la cual puede agregarse o substraerse nueva materia. Así, un reservorio natural es un almacén a través del cual pasa la materia durante su circulación en la naturaleza. Tomando la circulación del carbono como ejemplo, existen varios reservorios, como la atmósfera, el mar, la materia orgánica viviente y la materia orgánica muerta. Entre ellos pueden separarse las plantas y los animales, la capa superficial del mar y sus profundidades y otros más, según los propósitos del estudio.
Sobre la circulación producida por el viento en el Golfo de Tehuantepec y sus efectos sobre las temperaturas superficiales
Authors: Roden G. R.
Published: June 2021

Se investiga la relación entre los vientos y las temperaturas de la superficie del mar en el Golfo de Tehuantepec. Se encuentra que las bajas temperaturas de invierno están relacionadas con la divergencia inducida por el viento en el transporte de las masas, cuya magnitud es de unos 0.02g cm-2 serg-1 durante una galerna de invierno. Un análisis espectral de las anomalías de vientos y temperaturas en períodos de 10 días, indica que las anomalías en cuadrados adyacentes de 2 grados de latitud y longitud, son coherentes y casi simultáneas. Existe una relación más bien débil e inversa entre las anomalías del viento y la temperatura.
Algunas características de la precipitación pluvial en laderas de la Sierra Madre Oriental de México
Authors: Pérez Siliceo E.
Published: June 2021

En relación con las experiencias de estimulación de lluvia en Ia cuenca del Rio Necaxa, Estado de Puebla, México, se han IIevado a cabo algunos estudios acerca de características de Ia precipitación en dicha área, que podrían tomarse como representativas de laderas de Ia Sierra Madre Oriental de México, a lo menos al sur del Trópico de Cáncer.
El proyecto Stormfury - experimento para modificar el tiempo huracanado
Authors: Simpson R. H.
Published: June 2021

En su mayoría, los experimentos para modificar el tiempo han tratado de incrementar la lluvia o suprimir el granizo. Si bien numerosos investigadores han estudiado y propuesto varios medios de reducción del azar de fuertes tormentas, entre ellos Langmuir (1948, 1950) y Lopez y Howell (1961), pocos experimentos de campo especiales, se han realizado probablemente por dos razones. A menos que un sistema de tormenta tenga un "talón de Aquiles" no hay manera de que se pueda reducir el potencial destructivo de una tormenta por el tratamiento a fuerza bruta y se sabe demasiado poco de esos sistemas para reconocer un talón de Aquiles especifico o en particular, para determinar si puede identificarse por experimentos con técnicas como sembrar ioduro de plata.
Observaciones de sistemas de nubes por satélites sobre el Mar Caribe
Authors: Fritz S. , Broderick J. , Timchalk A.
Published: June 2021

Los sistemas de nubes tropicales, vistos desde satélites, presentan con frecuencia marcada organización que puede asociarse con sistemas de viento de alto o bajo nivel o con ambos. Cuando Ia organización se manifiesta como una nube cirriforme es evidente que existe cierta organización en niveles superiores. Por ejemplo, configuraciones divergentes de nubes cirrus que se asocian con masas de nubes muy brillantes sugieren una divergencia más arriba. La presencia de nubes de alto nivel puede inferirse de fotografías o medidas de radiación.
Dinámica de movimiento de huracanes
Authors: Pfeffer Richard L.
Published: June 2021

Se discute el movimiento de huracanes desde el punto de vista del equilibrio del momento angular en cada conjunto, de volúmenes cilíndricos localizados en diferentes posiciones respecto al vórtice en movimiento. Se demuestra que el incremento inicial del momento angular alrededor de un eje vertical local, que debe ocurrir cuando un huracán se mueve a través de una región, se realiza desde el contorno por el transporte de dicho momento angular hacia el volumen. Este transporte puede hacerse por uno de dos procesos –circulaciones verticales o cambios horizontales por vórtices- o por una combinación de ambos. Los resultados de esta investigaci6n revelan que lo-s procesos horizontales de cambio explican casi todos los transportes de momento angular asociados con el movimiento del huracán maduro. Las asimetrías encontradas en Ia distribución de transporte de momento angular alrededor del huracán no pueden explicarse en termino-s de conceptos sencillos como Ia "acción guiadora" de un vórtice circular por una corriente uniforme, sino que deben ser reflejo de un mecanismo más complejo de movimiento del huracán. Se sugiere que cualquier teoría de movimiento del huracán, para considerarse valida, debe explicar las asimetrías observadas en el campo de los transportes de momento angular alrededor del huracán.
Materiales viscoelasticos que admiten ondas simples
Authors: Herrera Revilla Ismael
Published: June 2021

Trabajos recientes sobre la teoría de materiales con memoria (Coleman, B. D. y M. E. Curtin, 1965a, 1965b; Coleman, B. D., M. E. Curtin e I. Herrera, 1965; Herrera, I. y M. E. Curtin, 1965; Varley, E., 1965) relativos al estudio de superficies singulares en esos materiales han aclarado mucho Ia estructura básica de las ecuaciones que gobiernan cl movimiento. Se ha demostrado que con hipótesis de continuidad apropiadas, se comportan en muchos aspectos como ecuaciones diferenciales parciales hiperbólicas.
Análisis estadísticos de intervalos de tiempo de temblores sucesivos en la Ciudad de México
Authors: Ferráez Sergio G.
Published: June 2021

Se estudia Ia distribución observada de frecuencia de incidencia versus amplitud de intervalos de tiempo entre cualesquiera dos temblores sucesivos en Ia ciudad de México, con magnitud 3.5 y superior, para buscar una fórmula que exprese la relación frecuencia-amplitud. Primera, para probar la incidencia al azar se discute la distribución de Poisson. Segundo, se demuestra que dos tipos de funciones teóricas tienen la forma requerida para ajustarse a Ia frecuencia observada, a saber: (l) la ley exponencial generalizada y =A exp (B log Δt), (2) Ia curva semi-logarítmica y = a + b log Δt + c (log .6 Δt)2. Finalmente, se concluye que tenemos una incidencia no al azar; por ello, parece que los temblores fuertes en la ciudad de México resultan de procesos tectónicos correlativos. Además, después que ha venido un temblor fuerte el intervalo de tiempo de espera para un nuevo temblor es de uno a 48 días.
Catálogo de estaciones gravimétricas en América Latina
Authors: Woollard G. P. , Mungea Caldera J. , Rose J. C. , Kozlosky J. A.
Published: June 2021

Contiene un catálogo de estaciones gravimétricas en América latina en idioma inglés y español
Sismicidad y tectónica de la región norte del Golfo de California, México. resultados preliminares
Authors: Lomnitz Cinna , Mooser Federico , R. Allen Clarense , Brune James N. , Tatcher Wayne
Published: June 2021

Se establecieron tres estaciones sismográficas nuevas, en la región norte del Golfo de California en México. Durante un periodo representativo, en abril y mayo de 1969, la sismicidad estuvo concentrada en las fallas de Imperial, San Jacinto, Sierra Juárez y San Miguel, y la dispersión de epicentros fue mucho menor de lo que se conocía previamente. Un importante enjambre de temblores ocurrió en marzo de 1969, cerca de Ia Roca Consag en el norte del Golfo, cuyo estudio ha contribuido al conocimiento de la tectónica regional. En el norte del Golfo de California y en la depresión de Salton adyacente, podemos aproximar Ia estructura tectónica por una serie de seis fallas transformadas, conectadas con cinco centros de dispersión (segmentos de cresta) caracterizados por zonas geotérmicas activas, volcanes recientes, enjambres de temblores y depresiones topográficas submarinas. Las complejidades en el patrón de fallas pueden relacionarse con una disminución de la velocidad de dispersión en los segmentos de cresta hacia el norte. Se encuentran en construcción cinco nuevas estaciones sismológicas de alta calidad, en torno al Golfo de California, cuyo objeto es una comprensión más detallada del patrón de dispersión del fondo submarino en esta región de excepcional importancia.
Convección asimétrica en el manto superior
Authors: De la Cruz Reyna Servando
Published: June 2021

La Nueva Tectónica de Placas admite a la convección en el manto superior como una de sus posibles fuerzas motoras. Se ha construido un modelo experimental que permite estudiar la convección de un fluido con generación interna y homogénea de calor. La aparición de patrones de convección asimétrica puede conducir a interpretaciones geofísicas interesantes.
On the computation of the actinometric radiation field
Authors: Galindo Ignacio , Muhlia V. Agustin
Published: June 2021

En un trabajo previo hemos presentado un algoritmo (J , m, w, B, a= 1.5) que describe el Campo Actinométrico de Radiación; dadas como condiciones iniciales tres de las variables anteriores, se obtiene la cuarta variable. En el presente artículo se presenta un algoritmo más flexible. El método permite un análisis cuantitativo de las diferentes distribuciones de la constante solar junto con las funciones de transmisión utilizadas. Los resultados muestran estas relaciones para combinaciones de las funciones de entrada en términos de un indicador de todo el proceso, en este caso, el coeficiente B de la turbidez atmosférica. El algoritmo es entonces una técnica útil para el estudio de cualquier combinación deseada de las curvas espectrales de irradiación solar juntamente con las funciones de transmisión dadas; en esta forma las Comisiones Internacionales pueden escoger la mejor combinación y recomendarla para cálculos futuros.
Pronostico de los afloramientos costeros y una aplicación al Banco de Campeche
Authors: Tapanes Juan Jose
Published: June 2021

Con base en Ia teoría de Ertel sobre corrientes superficiales del mar en las cercanas de una costa rectilínea, se presenta un método de pronóstico de los afloramientos costeros que se aplica al Banco de Campeche con resultados positivos, de acuerdo con los trabajos de investigación de diferentes autores.
Molecular Characterization and Biofilm Formation Study of Contaminant Bacteria Isolated from Domiaty and Hungarian Cheeses in Jeddah City
Authors: El-Hamshary Ola IM , Abdullah Sarah K. , Al-Twaty NH
Published: June 2021

The aim was to study the microbiological quality of Domiaty and Hungarian cheeses, molecular identification and biofilm formation of some selected contaminant bacteria. Samples were collected from two M and P big markets in Jeddah City through the period from February to October 2018, nine visits for two types of natural cheese. Results showed that the total bacterial counts (CFU/ml) from Domiaty cheese from two markets (M and P) were 0.1 x 105, 8 x 105 and 1 x 10 5 CFU/ml respectively (3 visits of M market) and 4 x 106, 0.4 x 106, 6.5 x 103, 1 x 103, 0.1 x 103 and 0.1 x 103 CFU/ml respectively (six samples from 6 visits from P market). Results showed that the total bacterial counts (CFU/ml) from Hungarian cheese were 1.5 x 10 5, 1x 10 4, 11 x 10 4 and 4 x10 6 CFU/ml respectively from (4 visits of M market) and 0.18 x 104, 3 x 106, 22 x 106, 6 x 106 and 5 x 104 CFU/ml respectively (5 visits from P market).Different bacterial isolates from cheese were identified by morphology and biochemical test. Bacterial isolates from cheeses were identified by VITEK MS as follow: Serratia liquefaciens (D6-1, D6-2, D14-1, D13-1 and D13-2), and Pseudomonas fluorescens (D14-2) were isolated from Domiaty cheese while Enterococcus faecium (H11-2), Serratia liquefaciens (H15-1) and Streptococcus thermophilus (H14-1) were isolated from Hungarian cheese. Some selected bacterial isolates were identified by 16S rRNA. Isolates were belong to MK757978 (Raoultilla terrigena (D15-1)), MK757979 (Bacillus cereus (D16-1)), MK757980 (Enterococcus faecalis (H10-2)), MK757982 (Enterococcus fiscalism (H11-1)), MK757981 (Serratia liquefactions (H13-1)), MK757984 (Anoxybacillus flavithermus (H17-1). All bacterial isolates have been tested for the formation of biofilm using a Tissue Culture Plate (TCP). Results revealed 12.5% and 46.15% of high biofilm formation respectively for bacterial isolates of Domiaty and Hungarian cheeses.
TÜRK MÜZİĞİNDE MEŞK SİSTEMİ
Authors: KAHYAOGLU Yılmaz
Published: June 2021

Bu çalışmada Türk müziğinde 16. Yüzyıldan beri nesilden nesile bir aktarım yöntemi olarak gelmiş olan Meşk sistemi konusu ele alınmış olup, betimsel araştırma yöntemlerinden tarama (Survey) tekniği ile yürütülmüştür. Türk müziğinde Meşk sistemi tekrar ve taklit üzerine kuruludur ve usta çırak ilişkili bir öğrenme ve öğretme yöntemidir. Müzik eseri ya bölüm ya da bir bütün olarak öğrenciye hoca tarafından defalarca tekrar ettirilir, böylelikle eser de öğrencinin hafızasına yerleşmiş olur. Bu yüzden meşk alacak öğrencinin müzik hafızasının çok iyi olması önem taşır. Meşk yalnızca Türk müziğinde sözlü eserler için değil, aynı zamanda da saz müziğinde de geçerli bir öğrenme ve öğretme yöntemidir. Meşk etmek, bir hoca ve bir öğrenci ile beraber bütün özellikleriyle eser geçmektir. Bu sistemde hedef repertuarları meşk zincirinin diğer halkalarına intikalini, aktarımını sağlamaktır. Meşk sistemi eskisi gibi olmasa da günümüzde hem Türk Müziğinde hem de az da olsa Batı müziğinde kullanılmaktadır.
Metaphilosophy and Argument: The Case of the Justification of Abduction
Authors: Olmos Paula
Published: June 2021

This paper is an essay on metaphilosophy that reviews, describes, categorises, and discusses different ways philosophers have approached the justification of abduction as a mode of reasoning and arguing. Advocating an argumentative approach to abduction, I model the philosophical debate over its justification as the critical assessment of a warrant-establishing argument allowing “H explains D” to be used as a reason for “H can be inferred from D.” Philosophers have discussed the conditions under which such kind of generic argument can be accepted, and I identify five kinds of such conditions, namely: a) dialectical/procedural restriction; b) claim restriction; c) restriction over acceptable explanatory principles; d) balancing restriction; and e) epistemic restriction.
Academic Achievement, Professionalism, and Burnout in Family Medicine Residents
Authors: Davis Caitlin , Krishnasamy Meenu , Morgan Zachary J. , Bazemore Andrew W. , Peterson Lars E.
Published: June 2021

Background and Objectives: Physician burnout has been shown to have roots in training environments. Whether burnout in residency is associated with the attainment of critical educational milestones has not been studied, and is the subject of this investigation.
Methods: We used data from a cohort of graduating family medicine residents registering for the 2019 American Board of Family Medicine initial certification examination with complete data from registration questionnaire, milestone data, in-training examination (ITE) scores, and residency characteristics. We used bivariate and multilevel multivariate analyses to measure the associations between four professionalism milestones ratings and ITE performance with burnout.
Results: Our sample included 2,509 residents; 36.8% met the criteria for burnout. Multilevel regression modeling showed a correlation between burnout and failure to meet only one of four professionalism milestones, specifically professional conduct and accountability (OR 1.41, 95% CI 1.07-1.87), while no statistically significant relationship was demonstrated between burnout and being in the lowest quartile of ITE scores. Other factors negatively associated with burnout included international medical education (OR 0.60, 95% CI 0.48-0.76) and higher salary compared to cost of housing (OR 0.62, 95% CI 0.46-0.82).
Conclusions: We found significant association between self-reported burnout and failing to meet expectations for professional conduct and accountability, but no relationship between burnout and medical knowledge as measured by lower ITE performance. Further investigation of how this impacts downstream conduct and accountability behaviors is needed, but educators can use this information to examine program-level interventions that can specifically address burnout and development of physician professionalism.
Cenas da precariedade de ontem e de hoje | Scenes of the precariousness of yesterday and today
Authors: Amorim José Edilson
Published: June 2021

ResumoA partir de uma crônica de Bráulio Tavares, este artigo reflete sobre cenas da precariedade de ontem e de hoje. A primeira cena está em Lima Barreto, em Recordações do escrivão Isaías Caminha, ao referir a Revolta da Vacina no Rio de Janeiro do século XX, comparada às manifestações de 2013 e 2014 no país; a segunda é a espetacularização da mídia sobre as manifestações de rua em 2013 e 2014, e sobre o processo de impedimento do mandato presidencial de Dilma Rousseff em 2015; a terceira é uma cena da vida cotidiana de uma moça de Brasília em outubro de 2014. As três situações revelam o mundo da classe trabalhadora e seu desamparo em meio ao espetáculo midiático.Palavras-chave: Trabalho. Mídia. Política. Espetáculo. AbstractFrom a chronicle by Bráulio Tavares, this paper reflects about scenes of the precariousness of yesterday and today. The first scene is in Lima Barreto’s novel Recordações do escrivão Isaías Caminha (Memories of the scrivener Isaías Caminha), when referring to the Vaccine Revolt in the Rio de Janeiro of the 20th century, compared to the manifestations of 2013 and 2014 in Brazil; the second is about the media spectacularization of the street manifestations between 2013 e 2014 in Brazil, and also on Dilma Rousseff's impeachment process in 2015; the third one is from the everyday life of a girl from Brasília in October of 2014. All those three situations reveal the world of the working class and its helplessness in the face of the media spectacularization.Keywords: Work. Media. Politics. Spectacle.
De ver pasar
Authors: Gil Montoya Rigoberto
Published: June 2021

Antes de que De ver pasar desembocara en este libro, primero fue un ejercicio de escritura que se impuso como memoria de un devenir en forma de breves ensayos. Cada uno de ellos aspira a traducir la composición de una imagen fotográfica, tomada a la sombra de ese vaivén que nos obliga a bajar escaleras de granito y a cambiar de acera cuando el sol quema la piel. Su interés creció con el tiempo de la contingencia sanitaria, causada por la pandemia del COVID-19. Se pretendió hacer un registro de lo que nos estaba pasando, de ese tiempo lento, inesperado y enigmático; de esa orden ambigua de «Quédate en casa». Por eso estas páginas se publicaron en el portal La cebra que habla, como esa inscripción que quiere permanecer en el intervalo de la huella y el testimonio. Ahora que este ejercicio de escritura se recoge a manera de libro, sospecho que los textos seleccionados no han perdido del todo su carácter inédito. Algo nuevo arroja su unidad, el orden de su inventario. Espero que despierte alguna emoción en el lector que sigue viviendo un tiempo lento en el que lo inesperado y enigmático, arroja signos que conviene discernir.
Long-term Predictions of Incident Coronary Artery Calcium to 85 Years of Age for Asymptomatic Individuals With and Without Type 2 Diabetes
Authors: Ferket Bart S. , Hunink M.G. Myriam , Masharani Umesh , Max Wendy , Yeboah Joseph , Fleischmann Kirsten E.
Published: June 2021

OBJECTIVE

To examine the utility of repeated computed tomography (CT) coronary artery calcium (CAC) testing, we assessed risks of detectable CAC and its cardiovascular consequences in individuals with and without type 2 diabetes ages 45–85 years.

RESEARCH DESIGN AND METHODS

We included 5,836 individuals (618 with type 2 diabetes, 2,972 without baseline CAC) from the Multi-Ethnic Study of Atherosclerosis. With logistic and Cox regression we evaluated the impact of type 2 diabetes, diabetes treatment duration, and other predictors on prevalent and incident CAC. We used time-dependent Cox modeling of follow-up data (median 15.9 years) for two repeat CT exams and cardiovascular events to assess the association of CAC at follow-up CT with cardiovascular events.

RESULTS

For 45 year olds with type 2 diabetes, the likelihood of CAC at baseline was 23% vs. 17% for those without. Median age at incident CAC was 52.2 vs. 62.3 years for those with and without diabetes, respectively. Each 5 years of diabetes treatment increased the odds and hazard rate of CAC by 19% (95% CI 8–33) and 22% (95% CI 6–41). Male sex, White ethnicity/race, hypertension, hypercholesterolemia, obesity, and low serum creatinine also increased CAC. CAC at follow-up CT independently increased coronary heart disease rates.

CONCLUSIONS

We estimated cumulative CAC incidence to age 85 years. Patients with type 2 diabetes develop CAC at a younger age than those without diabetes. Because incident CAC is associated with increased coronary heart disease risk, the value of periodic CAC-based risk assessment in type 2 diabetes should be evaluated.
The Effect of E-Portfolio in Project-Based Learning toward Learner Autonomy and Writing Competency
Authors: Devi Ariningsih Ni Ketut , Artini Luh Putu , Marsakawati Ni Putu Era
Published: June 2021

The National Education objectives can be achieved through learning process and a valid assessment process. Assessment has a strong involvement in the learning process. The purpose of this study is to investigate the effect of e-portfolio in project-based learning toward learner autonomy and writing competency experienced by X MIPA students of SMA Negeri 7 Denpasar. The research design was post-test only control group design. The research instruments used were questionnaire and writing test. Questionnaire was used to test learner autonomy, while writing test was used to test students’ writing competency. Data were analyzed by employing One-way Anova and Manova. The results of this study showed that there is a significant effect of E-portfolio in Project-Based Learning toward learner autonomy and writing competency of X MIPA students of SMA Negeri 7 Denpasar. The mean score of students who were taught by using e-portfolio in project-based learning strategy is higher than the mean score who were taught by using conventional strategy. E-portfolio in Project-Based Learning also revealed potentially promotes students’ creativity, problem solving skills, and communication through technology skills.