Face Research Articles

Strength of ultra-high rockfill dam concrete face

Strength of ultra-high rockfill dam concrete face

Autonomous driving in the face of unconventional odds

research-article Share on Autonomous driving in the face of unconventional odds Authors: Hesham M. Eraqi American University in Cairo, Egypt American University in Cairo, EgyptView Profile , Ibrahim Sobh Valeo, Cairo, Egypt Valeo, Cairo, EgyptView Profile Authors Info & Claims Communications of the ACMVolume 64Issue 4April 2021 pp 64–66https://doi.org/10.1145/3447729Online:22 March 2021Publication History 0citation1,635DownloadsMetricsTotal Citations0Total Downloads1,635Last 12 Months274Last 6 weeks31 Get Citation AlertsNew Citation Alert added!This alert has been successfully added and will be sent to:You will be notified whenever a record that you have chosen has been cited.To manage your alert preferences, click on the button below.Manage my Alerts New Citation Alert!Please log in to your account Save to BinderSave to BinderCreate a New BinderNameCancelCreateExport CitationPublisher SiteGet Access

Public precaution awareness: a case study from Google search trend during Covid-19 outbreak in Indonesia

Objective: The global outbreak of COVID-19 is emerged recently and this poses stress on health and well-being of the people in the worldwide including in Indonesia. Public interest in this new issue largely reflects people’s attention to COVID-19 and their willingness to take precautionary actions. This study aimed to examine public awareness on the prevention of COVID-19 using Google Trend (GT) . Methods: Using GT, we retrieved public query data for the term of (coronavirus, handwashing, hand sanitizer and facemask) between 12 December 2019 and 4 April 2020 in the specific locations of Indonesia nationwide and several provinces. The correlation between daily search volumes on the topic related to COVID-19 and the daily number of people infected with COVID-19 was analyzed. Results: Our studies observed the overall search trend of RSV regarding COVID-19 after the global outbreak and the announcement of first covid-19 case in Indonesia, the search related to COVID-19, and other defined terms in Indonesia increased rapidly. In addition, search related to face mask were gradually increased. Searches for face mask and hand sanitizer is more popular than handwashing. There is a positive correlation between daily RSV on COVID-19 and other defined terms and the daily number of people infected with COVID-19 nationwide ( p <0·05). There are various interest to RSV related to COVID-19, and public awareness of COVID-19 was almost similar in some provinces, particularly searches related to facemask and hand sanitizer. Conclusion: Our findings demonstrates that GT could potentially define the proper timing and location for practicing appropriate risk communication strategies to prevent the spread of emerging disease. The study demonstrates that government should strengthen the publicity of COVID- 19 nationally, reinforce the public's awareness on the prevention of COVID-19 and finally inform the importance of protecting individuals with appropriate and affordable precautionary measures.

Is It Safe for Children Younger Than 2 Years to Wear Surgical Masks

Although face masks are an important tool to reduce spread of SARS-CoV-2, whether they are safe for children <2 years is unknown. Investigators in

Lewis Carroll’s regress and the presuppositional structure of arguments

This essay develops and defends a diagnosis of Carroll’s (Mind 4(14):278–280, 1895) regress of the premises according to which the moral of the regress is that arguments are constitutively presuppositional. It is argued that this diagnosis allows to vindicate the key insights of the rule-following account of the regress, while overcoming the main difficulties that the rule-following account faces.

Rasgos vocacionales de estudiantes de bachillerato aspirantes a una formación inicial docente

El objetivo del presente artículo es describir los rasgos vocacionales (área de especialidad, motivos, intereses y aptitudes) de estudiantes de bachillerato del subsistema de Preparatorias Estatales en Yucatán, México, que aspiran a estudiar una licenciatura en el ámbito de la educación. Para ello se aplicó un estudio cuantitativo de naturaleza descriptiva y transeccional a una muestra de 252 estudiantes en fase de egreso de bachillerato, quienes manifestaron que cursar un programa enfocado en la formación inicial docente está entre sus tres primeras opciones de carrera a nivel de licenciatura. Los resultados muestran que menos de la mitad de los estudiantes cursaron un área de especialidad de bachillerato acorde con la formación docente. Por un lado se halló una tendencia a la elección de esta carrera en función de motivos externos tales como la influencia familiar y la situación económica. Por otro lado, el análisis mostró que únicamente la tercera parte de los estudiantes posee en un nivel alto los intereses vocacionales relacionados con una licenciatura en educación, mientras que las aptitudes vocacionales requeridas para este perfil profesional se manifestaron en un nivel bajo e intermedio entre los participantes. De modo general, el estudio lleva a conclusiones importantes en torno a los rasgos vocacionales de los estudiantes de bachillerato que aspiran a una formación inicial docente. Esto se debe a que muestran factores de riesgo potenciales para su futura permanencia y satisfacción vocacional en algún programa de licenciatura de este tipo pues los resultados manifiestan que los aspirantes poseen los requisitos mínimos para el área en la que desean formarse. Esto adquiere una mayor relevancia a la luz de los retos actuales para quienes se preparan para la profesión docente, ante los cambios sociales y necesidades emergentes en los contextos escolares que añaden a este perfil nuevas y abundantes demandas.

El ejercicio del derecho a la salud en personas mayores en Argentina y Colombia: una aproximación a partir del análisis de la mortalidad por causas sensibles a la atención de la salud en el siglo XXI

A partir de que Argentina y Colombia reconocen la salud como un derecho esencial y se comprometen, entre otras cuestiones, a brindar prestaciones sanitarias para garantizar su ejercicio sin discriminación, se propone indagar, comparativamente, acerca de los desafíos que estos países enfrentan para cumplir con este compromiso en las personas de sesenta años y más. Para ello, se calculan y analizan, para los trienios 2000-2002 y 2013-2015, tasas de mortalidad por causas consideradas sensibles a la atención de la salud según país, sexo y edad, con base en información de la Organización de las Naciones Unidas, y se calculan proporciones específicas sobre encuestas oficiales de cada país. Los resultados evidencian, en ambos países y para el conjunto de causas referidas, una mayor mortalidad en hombres, que crece con la edad hasta los 74 años y con tendencia al descenso, principalmente en Colombia. Un análisis más detallado por causas revela una situación similar en este último caso, a diferencia de Argentina, donde aumenta la mortalidad asociada a enfermedades respiratorias. Independientemente de estas diferencias, las tasas obtenidas al final del período investigado acusan, en los dos países, la necesidad de redoblar los esfuerzos para continuar su reducción (o revertir su incremento), con especial foco en las personas mayores que menos recursos tienen y su valor en tanto ciudadanos con iguales derechos al resto de la población.

Flexibilidad en el afrontamiento del estrés y fortalezas personales en estudiantes universitarios

Las altas y heterogéneas demandas que ha de afrontar el estudiantado universitario en su día a día han acrecentado en los últimos años el interés de la investigación por el estudio de la flexibilidad en el afrontamiento como recurso eficaz para la consecución de un funcionamiento psicológico adaptativo. Desde este planteamiento, el presente trabajo analizó la relación entre la utilización flexible de diferentes estrategias de afrontamiento del estrés y las fortalezas personales, erigidas en competencias psicológicas esenciales para la consecución de una vida plena, satisfactoria y feliz. Participaron 401 estudiantes de la Universidade da Coruña (España). Mediante un análisis de perfiles latentes (LPA) se identificaron dos perfiles diferenciados de afrontamiento: un perfil de baja flexibilidad en el afrontamiento (preferencia por estrategias de autocrítica y retirada social) y un perfil de alta flexibilidad en el afrontamiento (preferencia por estrategias de resolución de problemas, reestructuración cognitiva, expresión emocional y apoyo social). Este último grupo evidenció niveles significativamente más elevados de fortalezas personales que el grupo de afrontamiento improductivo. De conformidad con estos hallazgos, las intervenciones psicoeducativas dirigidas a la adquisición y utilización estratégica de diferentes recursos aproximativos de afrontamiento podrían constituir una vía eficaz para favorecer el desarrollo de las fortalezas personales en el estudiantado universitario.

Estimation of wind pressure coefficients on multi-building configurations using data-driven approach

Wind load acting on a standalone structure is different from that acting on a similar structure which is surrounded by other structures in close proximity. The presence of other structures in the surrounding can change the wind flow regime around the principal structure and thus causing variation in wind loads compared to a standalone case. This variation on wind loads termed as interference effect depends on several factors like terrain category, geometry of the structure, orientation, wind incident angle, interfering distances etc., In the present study, a three building configuration is considered and the mean pressure coefficients on each face of principle building are determined in presence of two interfering buildings. Generally, wind loads on interfering buildings are determined from wind tunnel experiments. Computational fluid dynamic studies are being increasingly used to determine the wind loads recently. Whereas, wind tunnel tests are very expensive, the CFD simulation requires high computational cost and time. In this scenario, Artificial Neural Network (ANN) technique and Support Vector Regression (SVR) can be explored as alternative tools to study wind loads on structures. The present study uses these data-driven approaches to predict mean pressure coefficients on each face of principle building. Three typical arrangements of three building configuration viz. L shape, V shape and mirror of L shape arrangement are considered with varying interfering distances and wind incidence angles. Mean pressure coefficients (Cp mean) are predicted for 45 degrees wind incidence angle through ANN and SVR. Further, the critical faces of principal building, critical interfering distances and building arrangement which are more prone to wind loads are identified through this study. Among three types of building arrangements considered, a maximum of 3.9 times reduction in Cp mean values are noticed under Case B (V shape) building arrangement with 2.5B interfering distance. Effect of interfering distance and building arrangement on suction pressure on building faces has also been studied. Accordingly, Case C (mirror of L shape) building arrangement at a wind angle of 45° shows less suction pressure. Through this study, it was also observed that the increase of interfering distance may increase the suction pressure for all the cases of building configurations considered.

A Function of Discourse Marker sorede-Approched by the Face Act Theory-

A Function of Discourse Marker sorede-Approched by the Face Act Theory-

Use of the CTC Count in Treatment Decisions for Metastatic Breast Cancer

The circulating tumor cell (CTC) count has long been recognized as a prognostic factor in metastatic breast cancer. Clinicians face a clinical dilemma

Armenian PM Faces Off With Top Brass

Armenian PM Faces Off With Top Brass

Using artificial intelligence to determine the patient infection time with Coronavirus and report the level of medical care needed

The Coronavirus has rapidly spread and reached more than 200 countries, infecting several million worldwide in a few weeks Artificial intelligence (AI) techniques have been proven useful in testing, diagnosing, and effectively reducing the spread of the virus However, some problems or deficiencies are found in the current AI techniques Patients are diagnosed after the emergence of symptoms;thus, deciding the necessary patient care is difficult The intervention of doctors is compulsory, thus leading to possible infection with the virus due to direct contact with patients The current work aims to develop AI techniques to overcome such problems This study proposes AI capable of determining the infection time of patients with the virus and the level of medical care needed before the onset of COVID-19 symptoms The proposed device measures many vital biological and human functions, such as the state of the brain and neurotransmitters, mental/mood conditions, tension level of face muscles, hands and body temperature, rate of pulse and pressure, oxygen level in the blood, rate of breathing and its difficulty, degree of redness of eye(s), and general body imbalances Hardware and software designs are applied in this work An experimental study is applied to examine, test, and evaluate the integration/work of each subsystem component and the overall system design Results showed that the proposed system, could be used to distinguish between healthy and infected individuals before the onset of COVID-19 symptoms

Drucebo effect - the challenge we should all definitely face!

Drucebo effect - the challenge we should all definitely face!

Planning for food commons in the post-COVID world

Food security is quickly becoming a major crisis within the COVID-19 crisis While food insecurity mounts, reports from across the world have detailed the destruction of food by producers en masse: animals euthanized, liters of milk poured down the drain, crops left to rot in the field As some countries move to protectionist measures to secure their own food supply, many are warned that any impediments to global food trade could mean further catastrophe for millions of people In many ways the crisis may feel like a sledgehammer, yet the pandemic has merely laid bare the flaws of a system built on foundational vulnerabilities It has always been contradictory to construct food security on distant just-in-time supply chains, controlled centrally by just a handful of multinational corporations, and heavily influenced by the whims of financial commodity markets Already before the pandemic struck, the food systems were hanging on by a thread A look around would reveal food insecurity in the midst of food waste, obesity in the midst of hunger, heavy dependence on fossil fuels in the face of climate change and peak oil, and a growing disconnection from nature in the face of soil degradation and ecosystem destruction

Response to "Drucebo effect - the challenge we should all definitely face!"

Response to "Drucebo effect - the challenge we should all definitely face!"

Effect of Time of Exposure to Prolonged War on Resilience of Soldiers

The armed forces of a country face numerous challenges in their professional lives which affect both their physical and mental health. Literature provides evidence that exposure to war like situations and conflicts exert stress amongst the military personnel. Despite such high intensity conflict situations cases of impaired mental health are low among the armed forces personnel which can be explained as resilient behaviour. Therefore the objective of the present study was to study the effect of time of exposure to prolonged war on the resilience levels of military personnel, specifically the Indian army personnel. The sample of the study included N=106 Indian army personnel serving in the high intensity conflict regions of Jammu and Kashmir, India. The sample was assessed quantitatively using the resilience questionnaire by Lakshmi and Narain and results were calculated. The results were quantitatively analysed using one-way ANOVAstatistical method and it was found that soldiers with 3 to 10 months of exposure to high intensity conflict region had low to average levels of resilience whereas soldiers with 10 to 24months of exposure had resilience levels ranging from average to high. Hence it was revealed that resilience of soldiers with more exposure to prolonged war was higher than those who had less duration of prolonged war. Furthermore, the need for more research in importance of resilience building as part of combat training is discussed in the research.

Heights of Minor Faces in 3-Polytopes

Each 3-polytope has obviously a face $ f $ of degree $ d(f) $ at most 5 which is called minor. The height $ h(f) $ of $ f $ is the maximum degree of the vertices incident with $ f $ . A type of a face $ f $ is defined by a set of upper constraints on the degrees of vertices incident with $ f $ . This follows from the double $ n $ -pyramid and semiregular $ (3,3,3,n) $ -polytope, $ h(f) $ can be arbitrarily large for each $ f $ if a 3-polytope is allowed to have faces of types $ (4,4,\infty) $ or $ (3,3,3,\infty) $ which are called pyramidal. Denote the minimum height of minor faces in a given 3-polytope by $ h $ . In 1996, Horňak and Jendrol’ proved that every 3-polytope without pyramidal faces satisfies $ h\leq 39 $ and constructed a 3-polytope with $ h=30 $ . In 2018, we proved the sharp bound $ h\leq 30 $ . In 1998, Borodin and Loparev proved that every 3-polytope with neither pyramidal faces nor $ (3,5,\infty) $ -faces has a face $ f $ such that $ h(f)\leq 20 $ if $ d(f)=3 $ , or $ h(f)\leq 11 $ if $ d(f)=4 $ , or $ h(f)\leq 5 $ if $ d(f)=5 $ , where bounds 20 and 5 are best possible. We prove that every 3-polytope with neither pyramidal faces nor $ (3,5,\infty) $ -faces has $ f $ with $ h(f)\leq 20 $ if $ d(f)=3 $ , or $ h(f)\leq 10 $ if $ d(f)=4 $ , or $ h(f)\leq 5 $ if $ d(f)=5 $ , where all bounds 20, 10, and 5 are best possible.

Aluminum beam reinforced by externally bonded composite materials

A recently popular method for retrofitting reinforced structure beams is to bond composite plates to their tensile faces. An important failure mode of such plated beams is the debonding of the composite plates from the base material of the beam due to high level of stress concentration in the adhesive at the ends of the composite plate. This paper, shows and presents in more detail a closed-form rigorous solution for interfacial stress in cantilever aluminum beams strengthened with bonded composite (sika wrap) plates and subjected to a uniformly distributed load. The results show that there exists a high concentration of both shear and normal stress at the ends of the laminate, which might result in premature failure of the strengthening scheme at these locations. A parametric study has been conducted to investigate the sensitivity of interface behavior to parameters such as laminate and adhesive stiffness, the thickness of the laminate; the effect on plate length of the strengthened cantilever beam region, the effect of adhesive (modules, thickness) and the effect of loading and geometry for the cantilever beam; where all were found to have a marked effect on the magnitude of maximum shear and normal stress in the composite member. The theoretical predictions are compared with other existing solutions. Finally, this research is helpful for the understanding on mechanical behaviour of the interface and design of the composite-aluminum hybrid structures.

Efectos multidimensionales emergentes de la cuarentena como consecuencia del covid-19 en los estudiantes universitarios de Bolivia

Con la declaratoria de alerta roja en relación a la pandemia de Covid-19 para precautelar la salud de la población en el Estado plurinacional de Bolivia, comenzó a regir una cuarentena rígida para evitar que las personas salgan de sus domicilios con el objeto de evitar los contagios, Es así que, como medida inmediata, muchas instituciones educativas privadas, tomaron la iniciativa del uso de herramientas tecnológicas disponibles para garantizar la continuidad de sus actividades académicas. Súbitamente, la disposición fue alargada y muchas universidades comenzaron a emplear plataformas para garantizar la continuidad académica. El presente artículo de análisis crítico, está basado en una comprensión desde una perspectiva compleja y transdisciplinar basada en la experiencia un numero de estudiantes de universidades privadas de distintas carreras, que permitió obtener información para identificar cuáles son los efectos multidimensionales emergentes de la educación virtual que afectan el proceso de enseñanza - aprendizaje como consecuencia de la medida de confinamiento ya que tanto docentes como estudiantes, no estaban preparados para afrontar un cambio tan repentino de esta magnitud, razón por la cual los efectos se fueron suscitando paulatinamente, generando diversas consecuencias clasificadas de la siguiente manera: Efectos en el rendimiento académico por la nueva modalidad de educación a distancia, efectos emocionales y psicológicos como consecuencia de la educación virtual y efectos socioeconómicos en las familias a causa de esta modalidad en el proceso de enseñanza – aprendizaje.