bluuebunny/crossref_metadata_2025 huggingface dataset:
Analytical solution of MHD micropolar nanofluid flow and forced convection heat transfer with entropy generation analysis past a linearly stretching sheet
Authors: Sadighi Sina , Afshar Hossein , Jabbari Mohsen , ashtiani Hossein Ahmadi danesh
Published: May 2021

This perusal attempts to model and interpret the entropy generation analysis and the flow field of 2-D, steady, viscous, incompressible and laminar boundary layer and forced convection heat transport of micropolar ferrofluid past a stretching sheet including suction and normal magnetic field effects. The porous sheet’s velocity and temperature are presumed to change linearly. Exact explicit solutions of the velocity, angular velocity and temperature distributions have been derived. The impacts of physical parameters on the local skin friction coefficient, the local Nusselt number, the entropy generation number further the velocities and temperature distributions are analyzed by tables and graphs. The angular velocity has more value than velocity for the least value of the magnetic and material parameters. The entropy generation number has a direct relation with material parameter and Brinkman either Reynolds numbers. Moreover, an inverse relation with the Prandtl number.
Hot environment aggravated hemorrhagic shock-induced organ dysfunction and protective effects of cold fluid resuscitation
Authors: Zhu Yu , Ma Sheng , Deng Haoyue , She Han , Zhang Jie , Tian Kunlun , Liu Liangming , Li Tao
Published: May 2021

Background

There are more and more areas with hot environment. Whether hot environment can aggravate hemorrhagic shock-induced organ dysfunction and its pathophysiological mechanism and treatment remains unclear.
Methods

Hemorrhagic shock rat model in hot environment was used to observe the changes of vital organ functions, the variation of the internal environment, stress factors and inflammatory factors, meanwhile, the targeted prevention and treatment measures were further studied.
Results

Hot environment further aggravated hemorrhagic shock induced death even in 34℃ hot environment which core temperature was not increased. At the same time, functions of heart, liver and kidney were more damaged after hemorrhagic shock rats in 34℃ hot environment as compared with room environment. The further study showed that the blood concentration of Na+, K+ and plasma osmotic pressure, the expression of inflammatory factors tumor necrosis factor-α (TNF-α) and interleukin-6 (IL-6) in the serum, as well as the stress factors Adrenocorticotropic Hormone (ACTH) and Glucocorticoid (GCS) were all notably enhanced following hot environment with hemorrhagic shock; and acidosis was extraordinary obvious; oxygen supply and oxygen consumption were remarkably decreased. At last present study demonstrated that 4–10℃ hypothermia fluid resuscitation could significantly improve the survival rate in hemorrhagic shock rats with hot environment.
Conclusions

Hot environment accelerated the death of hemorrhagic shock rats, which was related to the disorder of internal environment, increase of inflammatory and stress factors. Furthermore, moderate hypothermic fluid resuscitation was suitable for the treatment of hemorrhagic shock in hot environment.
Optimal 3D Deployment and Trajectory Selection of UAVs for Maximum Network Utility and Disaster Management
Authors: Debnath Sanjoy , Arif Wasim , Sen Debarati , Baishya Srimanta
Published: May 2021

Advancement in Unmanned Aerial Vehicles (UAV) technology supervised us to use them in many situations like seismic survey of an area, border and restricted area surveillance, disaster rescue, agriculture monitoring, and many others. The deployment of UAVs for expansion and extension of wireless network coverage for surveillance and rescue during and post disaster situations is fenced with promising challenges. The dense user coverage, quality of service (QoS), user data rate requirement, limited short flying time, and optimal trajectory path are some of the pertinent issues that UAVs are encountering. In this work we develop some algorithms for fast deployment of UAVs for application in disaster scenarios and optimal trajectory of each UAV in some specified area. The main aim of the work is to reduce the time complexity for optimal deployment of UAVs in order to optimize diverse parametric constraints. We propose a highly time efficient algorithm for UAV deployment through Lloyd and FCM as the initial localization of position in conjunction with the evolutionary algorithm namely Differential Evolution (DE) and Hybrid Differential Evolution with Learning (HDEL) for finding the optimal location of UAVs. We also develop an algorithm for finding out the optimal trajectory to reach the intended location for effective deployment of UAVs to ensure optimal resource allocation and user coverage. Comprehensive simulation of various performance measuring metrics is obtained and the result shows that the proposed algorithms are well efficient as compared to some of the standard algorithms used in deployment of UAVs.
Alternatives to Remdesivir: Drug repurposing for inhibition of SARSCoV2 RNA dependent RNA polymerase
Authors: Sharp Kumar
Published: May 2021

Even after more than a year of the beginning of COVID-19 pandemic, a specific treatment for the disease has not been discovered. Vaccination programmes are being rolled out as the fastest pace possible but achievement of herd immunity will take time.[1] Many drugs like favipiravir, remdesivir and tocilizumab are being used for the treatment of this disease but reports published by the World Health Organization and the New England Journal of Medicine shows that they do not produce any significant clinical results. In this study, by molecular docking a large set of drugs has been used to replace remdesivir in RdRp protein so that they can produce the same action and therefore provide suitable alternatives for clinical trials and emergency use. The drugs identified in the study are saquinavir, cefoperazone, gliquidone, nelfinavir, 5-methyltetrahyrofolate among various others.
On Capital, Innovation, and Government
Authors: Srinivasan Sarayu
Published: May 2021

Most people identify innovation by a financial outcome or event: either raising capital or generating it. This paper posits that while innovation is actually not defined by capital (consumption or generation), in order for an innovation to dominate market and mind share, capital is
required. While the U.S. federal government has supported innovation across nearly every industry by underwriting many modern advances across the world, it cannot take its own innovations to market and requires the collaboration of the private sector for this. Achieving this collaboration
is often challenging, as federal innovation is usually too early and immature to attract private investment, thus requiring further risk mitigation before the private sector can engage. Today, however, there are pressing reasons for the government and industry to collaborate, including economic
and innovation drivers and challenges from foreign actors. This paper makes recommendations that federal innovation can employ to better position itself, including updating its lexicon and adopting novel engagement strategies and mindsets to attract venture capital and industry over the long
term.
Volatility dynamics and the risk-return relationship in South Africa: A GARCH approach
Authors: Dwarika Nitesha , Moores-Pitt Peter , Chifurira Retius
Published: May 2021

This study is aimed at investigating the volatility dynamics and the risk-return relationship in the South African market, analyzing the FTSE/JSE All Share Index returns for an updated sample period of 2009–2019. The study employed several GARCH type models with different probability distributions governing the model’s innovations. Results have revealed strong persistent levels of volatility and a positive risk-return relationship in the South African market. Given the elaborate use of the GARCH approach of risk estimation in the existing finance literature, this study highlighted several weaknesses of the model. A noteworthy property of the GARCH approach was that the innovation distributions did not affect parameter estimation. Analyzing the GARCH type models, this theory was supported by the majority of the GARCH test results with respect to the volatility dynamics. On the contrary, it was strongly unsupported by the risk-return relationship. More specifically, it was found that while the innovations of the EGARCH (1, 1) model could account for the volatile nature of financial data, asymmetry remained uncaptured. As a result, misestimating of risks occurred, which could lead to inaccurate results. This study highlighted the significance of the innovation distribution of choice and recommended the exploration of different nonnormal innovation distributions to aid with capturing the asymmetry.
Specific humoral immunity in mink infected with the Aleutian disease virus (AMDV) and vaccinated against distemper
Authors: ŻMUDA ANDRZEJ , KOSTRO KRZYSZTOF , LISIECKA URSZULA
Published: May 2021

The Aleutian mink disease (AD) is one of the most serious threats to modern mink breeding. In farms where AD is endemic, a significant effect on breeding and reproductive effects is caused by permanent AMDV infection. The aim of this study was investigating the influence of subclinical infection of AMDV on the functional immune status and on the state of postvaccinal immunity against mink distemper. The analyses involved 30 brown mink females aged 12 weeks and allocated into an experimental group (group I) and control group (group II), with 15 animals in each. The minks from group I originated from the farm with an endemic form of Aleutian disease. The control minks from group II originated from the AMDV-uninfected farm. The dynamics of the growth of specific antibodies was examined after vaccination of the minks from both groups against distemper. Serum levels were determined in both groups with a seroneutralisation assay (SN). Obtaining positive values in the SN test in both groups of animals confirmed the induction of a specific immune response. There were significant differences in the magnitude of the positive SN assay values between the minks from group I and group II at all days of determination. The significantly lower SN values noted in the group minks with subclinical course of AMDV reveal that Aleutian disease can cause a suppressive effect on humoral response after vaccination.
Determination of the time of death of dogs using atropine and pilocarpine in the early post-mortem period – an assessment of the usefulness of the method
Authors: PANASIUK-FLAK KINGA , GRELA MAŁGORZATA , LISTOS PIOTR
Published: May 2021

To determine the time of death in the early post-mortem period, i.e. up to a few hours or a few days, methods involving measurement of body temperature and observations of supravital reactions are used. One of the most promising methods is measurement of the reactivity of the pupil under the influence of substances such as those used in this study, atropine and pilocarpine. The research material was two groups of dogs, one with body weight over 40 kg and another under 10 kg, whose time of death was known. At 30, 60, 90, 120 and 180 minutes post-mortem, atropine or pilocarpine drops were placed in the conjunctival sac and the change in pupil diameter was measured. The study clearly showed that the method is useful in forensic estimation of the time of death of an animal. In order to verify the reliability of the method, there is a need for further study.
Cerebral hemorrhage in a dog with immune-mediated hemolytic anemia and concurrent thrombocytopenia – a case report
Authors: ÇOLAKOĞLU EKREM ÇAĞATAY , HAYDARDEDEOĞLU ALI EVREN , ALIHOSSEINI HADI , AYDEMIR ECE
Published: May 2021

The aim of this case report is to point out the neurological signs, long term management of the case and MRI lesions suggestive of cerebral haemorrhage in a dog with IMHA and concurrent thrombocytopenia. A 3.5-year-old intact female Cocker Spaniel dog was examined for anorexia, weakness, exercise intolerance and two collapse episodes. Based on the diagnostic procedures primary immune mediated hemolytic anaemia concurrent with severe thrombocytopenia were confirmed. The dog remained stable with prednisolone and fluid therapy for 6 weeks. The dog was later referred to emergency service with hemianopia, head tilt and epilepsy-like signs. Brain MRI lesions showed central line deviation, oedema and cerebral haemorrhage. Post-treatment MRI also provided clear evidence of resolution the cerebral haemorrhage. The dog was asymptomatic for 6 months after splenectomy. To the best our knowledge, this is the first fully documented report of cerebral haemorrhage in a dog with immune mediated hemolytic anaemia and thrombocytopenia.
Gray water treatment by air-gap multi-effect membrane distillation with pre-treatment by electrocoagulation
Authors: Pangarkar Bhausaheb , Guddad Mahendra
Published: May 2021

The gap between supply and demand of fresh water is widening due to increase in global population. Hence, an alternative source of water such as gray water could potentially save a significant amount of precious fresh water. Gray water is distinct from black water by the amount and composition of its chemical and biological contaminants. In this paper, an air-gap Multi-effect membrane distillation (MEMD) module performance for gray water treatment is described. Surfactant present in the gray water was wetting the membrane pores. Hence, electrocoagulation was used as a pre-treatment of gray water feed. About 99.14% surfactants were removed by electrocoagulation and the experiment shows excellent performance of the MEMD module. The 4-stage MEMD module offered permeate fluxes nearly to 50.12 l/m2 h at 80 °C. It was also found that a high thermal efficiency and output gain ratio was possible with lower specific energy and no cooling water. Hence, it is apparent that the air gap MEMD technology could be used for gray water treatment. Pre-treatment by electrocoagulation (EC) operation seems an important step in the overall treatment process when large amounts of surfactants are present in the treatment water.
Mutagenic and ecotoxicological assessment of urban surface runoff flowing to the beaches of Guarujá, State of São Paulo, Brazil
Authors: Roveri Vinicius , Guimarães Luciana Lopes , Teodorico Correia Alberto
Published: May 2021

Along the coast of the State of São Paulo, Brazil, urban drainage channels introduce a complex mixture of pollutants into the South Atlantic Ocean, that may cause deleterious effects to the aquatic biota. The objective of this study was to analyse, for the first time, the mutagenicity (Ames Salmonella/microsome test) and ecotoxicity (acute and chronic tests, with Daphnia simillis and Ceriodaphnia dubia, respectively) exerted by the diffuse loads discharged in Guarujá, São Paulo coast, Brazil. Water sampling occurred bimonthly between January and July 2018 (rainy season: January through March; dry season: May through July) at four beaches with different profiles of use and land occupation: Tombo (Blue Flag certification), Enseada (high use by tourists), Perequê (fishing community) and Iporanga (conservation unit). No mutagenic potential was detected in the complex mixtures flowing to the study beaches. However, 30 and 80% of the analyses showed acute and chronic toxicities, respectively, mainly in the Enseada and Perequê channels during the rainy season. To improve the environmental quality of these coastal waters and to reduce the ecological risks posed to the aquatic organisms and public health, several actions are imperative, such as the amelioration of the basic sanitation facilities and land regularisation actions.
Corrigendum to: Establishment and In Vitro Evaluation of Porous Ion-Responsive Targeted Drug Delivery System. Protein & Peptide Letters, volume 27(11), (2020)
Authors: Liu Hongfei , Zhu Jie , Bao Pengyue , Ding Yueping , Wang Jiapeng , Du Yi , Qu Yang , Xu Ying
Published: May 2021

The authors are regretful for submitting and approving the publication of incorrect Figure 4 in this article. Below is the
corrected version along with the revised caption. The electronic version of the article has already been corrected.
Anatomical Basis of Clinical Manifestations Seen in Cavernous Sinus Syndrome: A Narrative Review
Authors: Rama Raj Palaniraj , Smith Vinayak
Published: May 2021

Pathology involving the Cavernous Sinus (CS), generally referred to as Cavernous Sinus Syndrome (CSS), can arise from vascular disorders, neoplasms, infections, and non-infectious inflammatory disorders. An acute understanding of the CS and its regional anatomical structures is therefore pertinent in expounding the highly variable clinical manifestations seen in CSS as well as laying the groundwork for surgical intervention. Though the neuroanatomy of the cavernous sinus has been substantially chronicled in literature, their correlation to clinical signs has only been minimally described. This narrative review serves to address this knowledge gap and aims to comprehensively correlate the clinical manifestations of CSS with the relevant neuroanatomy, thereby allowing medical practitioners to better navigate the diagnostic quandary. We conducted a scoping review of the literature concerning CS anatomy and CSS, complied through MEDLINE/OVID and cross-referencing of articles on PubMed and Google Scholar with the keywords cavernous sinus, cavernous sinus syndrome, clinical signs/manifestations, neuroanatomy, CS pathology, Cavernous Sinus Thrombus (CST) and cavernous sinus neoplasms/tumours.
Understanding human resources management strategy in implementing good government practice: what research evidence say
Authors: Hidir Achmad , Zunaidi Arif , Pattiasina Petrus Jacob
Published: May 2021

Understanding human resource development strategies in good governance service practices are essential. For this reason, we have reviewed several study pieces of evidence to add to the enrichment of our study. The reading sources we are looking for are data-based sources from Google scholars, ERIC publications, and other literature sources. Furthermore, we take the analysis stage by involving the coding system, evaluation, data extract, in-depth interpretation, and drawing conclusions that are valid findings and high reliability because these findings have answered the questions and danced the hypothesis of this study. We depend on secondary data and descriptive qualitative study designs. Based on the discussion of the findings data, we can conclude that the HR governance strategy working in public service organizations is not only required for superior competence, technical skills, and mastery of the underlying laws and regulations, but they are state apparatuses that are even more crucial in shaping mental and behavioral professional, friendly in nurturing, honest, sympathetic, wise, intelligent, and highly responsible.
Advancements and further research trends for microbial biosurfactants in the petroleum industry
Authors:   Koehler Instrument Co., Shah Raj , Ashby Richard ,   USDA, Eastern Regional Research Center, Aragon Nathan ,   Stony Brook University
Published: May 2021

Surfactants are widely used in the petroleum industry during many stages of oil recovery, refining and spill cleanup. Because these processes release surfactants directly into the environment, much research has been done on the potential for replacing the more commonly used synthetic surfactants with more eco-friendly biosurfactants.This article highlights some recent studies of the effectiveness of biosurfactants applied to various aspects of the petroleum industry.
The recent drama over dairy
Authors: Guenard Rebecca
Published: May 2021

How cow nutrition affects milk composition is a well understood phenomenon. Farming and feeding practices differ around the world based on factors like land availability and climate. Due to these different feeding methods, dairy scientists have observed that the composition of milk—particularly the fatty acid (FA) composition of milk fat—varies depending on a cow’s intake.
LA IMPORTANCIA DE LA GESTIÓN CURRICULAR UNIVERSITARIA EN PROGRAMAS A DISTANCIA, ESTUDIO INSTITUCIÓN DE EDUCACIÓN SUPERIOR SURAMERICANA
Authors: Benavidez Torres Myriam Fabiola
Published: May 2021

La investigación realizada se basa en la gestión curricular universitaria al interior del programa de Administración en Salud Ocupacional modalidad distancia , parte del análisis del sistema de gestión curricular del programa, identificando cual es el papel de su gestión en la Facultad de Ciencias Empresariales de la corporación Universitaria Minuto de dios rectoría Virtual y a Distancia Colombia, el estudio es cualitativo de corte descriptivo y transversal, el aporte de la investigación se dio en el mejoramiento y entendimiento de los procesos curriculares que fortalecen la gestión curricular en los programas a distancia, permitiendo identificar los cuellos de botella y acciones de mejora que fortalezcan el quehacer pedagógico y de práctica docente, se trabajó con docentes, estudiantes, currículo, los resultados denotan el desconocimiento parcial tanto del modelo educativo institucional, como del modelo curricular y la carencia de un modelo de gestión curricular apropiado para el modelo de educación a distancia.
CALIDAD DEL SERVICIO Y SATISFACCIÓN DEL CLIENTE EN LAS MYPE DEL SECTOR SERVICIOS - RUBRO HOTELES DE 3 ESTRELLAS DEL DISTRITO DE PIURA, 2015
Authors: Arias Muñoz Carlos Eduardo
Published: May 2021

El presente trabajo de investigación tuvo como objetivo general determinar la influencia de la Calidad del Servicio en la Satisfacción de los clientes en las micro y pequeñas empresas del sector servicios - rubro Hoteles de 3 Estrellas del distrito de Piura, 2015. Para el desarrollo del trabajo se utilizó un tipo y nivel de investigación correlacional y un diseño no experimental-transaccional. Para el recojo de la información se identificó una población de 329 clientes, de los cuales se escogió una muestra de 141 clientes a quiénes se les aplicó un cuestionario de 44 preguntas cerradas por medio de la encuesta; de lo cual se obtuvo los siguientes resultados: El 53,9% de clientes encuestados, expresan estar algo de acuerdo en cuanto a la modernidad del mobiliario, equipos y herramientas, el 43,3% manifiesta estar apenas de acuerdo respecto a la entrega del servicio con la menor cantidad de errores, el 46,8% manifiesta estar algo de acuerdo respecto al comportamiento de los empleados en la inspiración de confianza y el 50.4% considera estar apenas de acuerdo que los empleados tienen conocimientos suficientes para responder preguntas. Finalmente como conclusión: La calidad del servicio que aplican los hoteles de 3 estrellas del distrito de Piura inciden desfavorablemente en el logro de la satisfacción de sus clientes.
LOS SABERES SOTERRADOS, SALVAGUARDA Y LEGITIMACIÓN EN LA EDUCACIÓN PATRIMONIAL TRANSCOMPLEJA
Authors: Rodríguez Milagros Elena
Published: May 2021

La Educación Patrimonial Transcompleja (EPT) es el ejercicio educativo que basándose en el asunto patrimonial de un ciudadano comprometido propende una identidad que lo define e identifica con su patrimonio cultural. Con entrevistas abiertas a tres (3) profesionales, se usó el transmétodo análisis del discurso para proceder a encontrar las ideologías de los actores entrevistados en las etapas: el sintáctico, el semántico, y el pragmático sustentando la EPT desde los saberes soterrados y aportar a la EPT. Del análisis se tiene que de los entrevistados que provienen de la Ciudad profundamente freiriana, aquella educadora, que convoca a aprender a leer la ciudad, sus habitantes y su cultura; legitima los saberes soterrados que de ella se develan. Esto implicará descubrir su historia a partir de los signos y elementos que evocan su caducado patrimonio olvidado no reconocido; transculturizado; muchas veces aculturizado y que ayudan a comprender cómo y por qué ha llegado a ser lo que es; en muchas partes de nuestro continente; es aprender de nuestros aborígenes, y de tantas culturas que se deben salvaguardar.Palabras Clave: Educación Patrimonial Transcompleja, saberes soterrados, salvaguarda, transmodernidad.
FABULANTÁSTICOS ARGUNAUTAS: ESTRATEGIA PARA GENERAR CULTURA DE LA LECTURA Y LA ESCRITURA
Authors: Bernal Ochoa Beatriz Elena
Published: May 2021

El presente trabajo tiene como objetivo generar en los estudiantes una cultura de la lectura y la escritura a través de la creación de “Fabulantàsticos Argunautas’’. Para tal fin, se propuso un enfoque conceptual y didáctico que buscara promover el desarrollo de competencias comunicativas y mayores aprendizajes de los estudiantes de grado cuarto de la Institución Educativa Mercedes Ábrego de Cartagena, desde el empleo práctico de nuevas palabras para la comprensión semántica y sintáctica mediante la producción literaria; usando como recursos la colección semilla, materiales educativos, aprendizaje cooperativo y evaluación formativa; componentes del PTA(Programa Todos a Aprender).Esta propuesta arrojó como resultados el mejoramiento del comportamiento lector y escritor tanto en estudiantes, docentes y padres de familia quienes se involucraron y ahora leen y escriben por placer, capacitan en las demás sedes y participan en concursos locales y nacionales, lo cual ha permitido subir en los niveles de la prueba Saber de Lenguaje.
LA INFORMALIDAD Y EL FINANCIAMIENTO DE LAS MICRO Y PEQUEÑAS EMPRESAS DEL SECTOR FORESTAL RUBRO COMPRA Y VENTA DE MADERA DEL DISTRITO DE YARINACOCHA, 2018.
Authors: Paima Paredes Rusvelth
Published: May 2021

La investigación tuvo como objetivo general: Describir las características de la informalidad y el financiamiento en las micro y pequeñas empresas del sector forestal rubro compra y venta de madera del distrito de Yarinacocha, 2018. La investigación fue cuantitativo-descriptivo, no experimental-transversal-retrospectiva, para el recojo de la información se escogió en forma dirigida a 30 microempresarios, cuyos resultados fueron: Los representantes legales son personas adultas cuyas edades oscilan entre los 31 a más de 46 años de edad, en su mayoría son del sexo masculino, tienen estudios secundarios, y solo se dedican al comercio de madera, ello incrementa la informalidad, no conocen el régimen Mype tributario, desconocen que la Sunat brinda información para formalizar su negocio, creen que la formalización es costosa, consideran que las políticas tributarias en nuestro país no es la adecuada, no siendo manejada adecuadamente por la Sunat y en el distrito de Yarinacocha consideran a la informalidad inadecuado. Consideran que necesitan de financiamiento, cuentan con patrimonio suficiente para ser usada como garantía, no conocen los tipos de financiamiento, en su mayoría se autofinancian, cuando acuden a gestionar crédito les exigen sus constancia de posesión de su predio, consideran que el sistema financiero en el país no les proporcionan facilidades. Finalmente las Mypes estudiadas indicaron que perdieron utilidad por no acceder a financiamiento y precisan que su empresa ha obtenido ganancia en estos últimos años. Palabras clave: Informalidad, financiamiento, Mypes.
FACTORES DE RIESGO QUE GENERAN LA AGRESIVIDAD EN LOS NIÑOS Y NIÑAS DENTRO DEL CONTEXTO ESCOLAR DE LA INSTITUCIÓN EDUCATIVA ANORÍ, Y EL CENTRO EDUCATIVO RURAL LA HERMOSA DURANTE EL AÑO 2018, DEL MUNICIPIO DE ANORÍ
Authors: Rengifo Ortiz Santos Berlington
Published: May 2021

El entorno escolar tiene una  influencia decisiva en el comportamiento de los niños, niñas y jóvenes pues  genera en ellos un sentimiento de competitividad y superioridad dentro del grupo. Acciones que recurren en  actitudes  agresivas que se presentan en eventos que  desencadena en la expresión de superioridad o poder frente los demás. Pues ciertas  condiciones proporcionan al niño señales de que su conducta  agresiva puede tener consecuencias gratificantes. Los resultados de esta investigación confirman que la violencia escolar es el producto de una compleja combinación de variables, entre las que debe considerarse el entorno escolar, el entorno familiar y el entorno social. Los resultados encontrados deben conducir hacia una reflexión sobre los valores y conductas que desde los procesos de socialización trasmiten a nuestros estudiantes desde la Institución y el centro educativo rural del Municipio de Anorí. En consecuencia, y puesto que las experiencias escolares son parte significativa del proceso estudiantil donde se aprenden de los otros. Es necesario intervenir sobre aquello que representa una influencia negativa para él grupo, sobre todo si se tiene en cuenta que los problemas de violencia entre pares pueden ser la antesala de otras conductas problemáticas posteriores: abuso sexual, violencia en las relaciones de pareja o delincuencia.
Formalización del empleo y su impacto en el desempeño laboral de los trabajadores en el Distrito de Chimbote, 2018-2019
Authors: Carruitero Lecca Francisco Rogger , Martinez Flores Héctor Elvis , Benites Vásquez Tula Luz , Rojas Luján Victor Willian , Medina Sanjinéz Guillermo Evaristo
Published: May 2021

El propósito de la investigación fue estudiar la formalización del empleo  y su impacto desempeño laboral de los trabajadores en el Distrito de Chimbote, 2018-2019. El tipo de estudio es no experimental, correlacional causal transversal y los métodos de investigación aplicados fueron el inductivo, deductivo, el descriptivo y estadístico. La muestra fue determinada por 50 trabajadores  informales y  50 trabajadores del sector formal, mediante el muestreo estadístico no probabilístico. Se utilizó la técnica de la encuesta con un  cuestionario tipo escala de Likert. El análisis de la información se realizó empleando la estadística descriptiva e inferencial, como herramientas para el procesamiento de los datos se utilizó el programa estadístico SPSS, versión 23. Se concluye que existe un impacto significativo, de la formalización  del empleo  en el desempeño laboral de los trabajadores en el Distrito de Chimbote, 2018-2019; según el coeficiente de contingencia del estadístico de prueba Tau-b de Kendall el valor es τ= 0,845, con nivel de significancia menor al 5% de significancia estándar (P < 0,005). Así mismo se obtuvo como resultado que el 40%, de los trabajadores formales tienen un muy alto desempeño laboral.
Educación, retos actuales
Authors: Chavez Principe Narda Karina
Published: May 2021

Educación
Using Search Trends to Analyze Web-Based Interest in Lower Urinary Tract Symptoms-Related Inquiries, Diagnoses, and Treatments in Mainland China: Infodemiology Study of Baidu Index Data
Authors: Wei Shanzun , Ma Ming , Wu Changjing , Yu Botao , Jiang Lisha , Wen Xi , Fu Fudong , Shi Ming
Published: May 2021

Background

Lower urinary tract symptoms (LUTS) are one of the most commonly described urination disorders worldwide. Previous investigations have focused predominantly on the prospective identification of cases that meet the researchers’ criteria; thus, the genuine demands regarding LUTS from patients and related issues may be neglected.

Objective

We aimed to examine web-based search trends and behaviors related to LUTS on a national and regional scale by using the dominant, major search engine in mainland China.

Methods

Baidu Index was queried by using LUTS-related terms for the period of January 2011 to September 2020. The search volume for each term was recorded to analyze search trends and demographic distributions. For user interest, user demand graph data and trend data were collected and analyzed.

Results

Of the 13 LUTS domains, 11 domains are available in the Baidu Index database. The Baidu search index for each LUTS domain varied from 37.78% to 1.47%. The search trends for urinary frequency (2011-2018: annual percent change APC=7.82%; P<.001), incomplete emptying (2011-2014: APC=17.74%; P<.001), nocturia (2011-2018: APC=11.54%; P<.001), dysuria (2017-2020: APC=20.77%; P<.001), and incontinence (2011-2016: APC=13.39%; P<.001) exhibited fluctuations over time. The search index trends for weak stream (2011-2017: APC=−4.68%; P<.001; 2017-2020: APC=9.32%; P=.23), split stream (2011-2013: APC=9.50%; P=.44; 2013-2020: APC=2.05%; P=.71), urgency (2011-2018: APC=−2.63%; P=.03; 2018-2020: APC=8.58%; P=.19), and nocturnal enuresis (2011-2018: APC=−3.20%; P=.001; 2018-2020: APC=−4.21%; P=.04) remained relatively stable and consistent. The age distribution of the population for all LUTS-related inquiries showed that individuals aged 20 to 40 years made 73.86% (49,218,123/66,635,247) of the total search inquiries. Further, individuals aged 40 to 49 years made 12.29% (8,193,922/66,635,247) of the total search inquiries for all LUTS-related terms. People from the east part of China made 67.79% (45,172,031/66,635,247) of the total search queries. Additionally, most of the searches for LUTS-related terms were related to those for urinary diseases to varying degrees.

Conclusions

Web-based interest in LUTS-related terms fluctuated wildly and was reflected timely by Baidu Index in mainland China. The web-based search popularity of each LUTS-related term varied significantly and differed based on personal interests, the population’s concerns, regional variations, and gender. These data can be used by care providers to track the prevalence of LUTS and the population’s interests, guide the establishment of disease-specific health care policies, and optimize physician-patient health care sessions.
Co-designing a Lifestyle-Focused Text Message Intervention for Women After Breast Cancer Treatment: Mixed Methods Study
Authors: Singleton Anna , Raeside Rebecca , Partridge Stephanie R , Hayes Molly , Maka Katherine , Hyun Karice K , Thiagalingam Aravinda , Chow Clara K , Sherman Kerry A , Elder Elisabeth , Redfern Julie
Published: May 2021

Background

Breast cancer is the most common cancer among women globally. Recovery from breast cancer treatment can be mentally and physically challenging. SMS text message programs offer a novel way to provide health information and support, but few programs are co-designed with consumer representatives.

Objective

This study aims to report the procedures and outcomes of a co-design process of a lifestyle-focused SMS text message program to support women’s mental and physical health after breast cancer treatment.

Methods

We followed an iterative mixed methods two-step process: (1) co-design workshop with consumers and health professionals and researchers to draft text messages and (2) evaluation of message content, which was scored (5-point Likert scale; 1=strongly disagree to 5=strongly agree) for ease of understanding, usefulness, and appropriateness, and readability (Flesch-Kincaid score). Additional free-text responses and semistructured interviews were coded into themes. Messages were edited or deleted based on the evaluations, with consumers’ evaluations prioritized.

Results

In step 1, co-designed text messages (N=189) were semipersonalized, and the main content themes were (1) physical activity and healthy eating, (2) medications and side effects, (3) mental health, and (4) general breast cancer information. In step 2, consumers (n=14) and health professionals and researchers (n=14) provided 870 reviews of 189 messages and found that most messages were easy to understand (799/870, 91.8%), useful (746/870, 85.7%), and appropriate (732/870, 84.1%). However, consumers rated 50 messages differently from health professionals and researchers. On the basis of evaluations, 37.6% (71/189) of messages were deleted, 36.5% (69/189) were edited, and 12 new messages related to fatigue, self-care, and cognition were created. The final 130 text messages had a mean 7.12 (SD 2.8) Flesch-Kincaid grade level and 68.9 (SD 15.5) ease-of-reading score, which represents standard reading ease.

Conclusions

Co-designing and evaluating a bank of evidence-based mental and physical health-themed text messages with breast cancer survivors, health professionals, and researchers was feasible and resulted in a bank of 130 text messages evaluated highly by participants. Some consumer evaluations differed from health professionals and researchers, supporting the importance of co-design.
The Use of Closed-Circuit Television and Video in Suicide Prevention: Narrative Review and Future Directions
Authors: Onie Sandersan , Li Xun , Liang Morgan , Sowmya Arcot , Larsen Mark Erik
Published: May 2021

Background

Suicide is a recognized public health issue, with approximately 800,000 people dying by suicide each year. Among the different technologies used in suicide research, closed-circuit television (CCTV) and video have been used for a wide array of applications, including assessing crisis behaviors at metro stations, and using computer vision to identify a suicide attempt in progress. However, there has been no review of suicide research and interventions using CCTV and video.

Objective

The objective of this study was to review the literature to understand how CCTV and video data have been used in understanding and preventing suicide. Furthermore, to more fully capture progress in the field, we report on an ongoing study to respond to an identified gap in the narrative review, by using a computer vision–based system to identify behaviors prior to a suicide attempt.

Methods

We conducted a search using the keywords “suicide,” “cctv,” and “video” on PubMed, Inspec, and Web of Science. We included any studies which used CCTV or video footage to understand or prevent suicide. If a study fell into our area of interest, we included it regardless of the quality as our goal was to understand the scope of how CCTV and video had been used rather than quantify any specific effect size, but we noted the shortcomings in their design and analyses when discussing the studies.

Results

The review found that CCTV and video have primarily been used in 3 ways: (1) to identify risk factors for suicide (eg, inferring depression from facial expressions), (2) understanding suicide after an attempt (eg, forensic applications), and (3) as part of an intervention (eg, using computer vision and automated systems to identify if a suicide attempt is in progress). Furthermore, work in progress demonstrates how we can identify behaviors prior to an attempt at a hotspot, an important gap identified by papers in the literature.

Conclusions

Thus far, CCTV and video have been used in a wide array of applications, most notably in designing automated detection systems, with the field heading toward an automated detection system for early intervention. Despite many challenges, we show promising progress in developing an automated detection system for preattempt behaviors, which may allow for early intervention.
Optimization of Primary Care Among Black Americans Using Patient Portals: Qualitative Study
Authors: Ordaz Omar H , Croff Raina L , Robinson LaTroy D , Shea Steven A , Bowles Nicole P
Published: May 2021

Background

Reduced patient portal use has previously been reported among Black Americans when compared with that of the general population. This statistic is concerning because portals have been shown to improve the control of chronic conditions that are more prevalent and severe in Black Americans. At their very simplest, portals allow patients to access their electronic health records and often provide tools for patients to interact with their own health information, treatment team members, and insurance companies. However, research suggests that Black American patients have greater concerns over a lack of support, loss of privacy, and reduced personalization of care compared with other Americans, which results in a disparity of portal use.

Objective

This qualitative investigation of primary care experiences of Black Americans from across the United States who participated in remote focus groups in April and May 2020 aims to explore the use and perceived value of patient portals to better understand any barriers to optimized treatment in the primary care setting.

Methods

We performed an inductive thematic analysis of 8 remote focus group interviews with 29 Black American patients aged 30-60 years to qualitatively assess the experiences of Black American patients with regular access to portals.

Results

Thematic analysis uncovered the following interrelated themes regarding patient portals in primary care: the optimization of care, patient empowerment, patient-provider communication, and patient burden.

Conclusions

In contrast to what has been described regarding the reluctance of Black Americans to engage with patient portals, our focus groups revealed the general acceptance of patient portals, which were described overwhelmingly as tools with the potential for providing exceptional, personalized care that may even work to mitigate the unfair burden of disease for Black Americans in primary care settings. Thus, opportunities for better health care will clearly arise with increased communication, experience, and adoption of remote health care practices among Black Americans.
Caregiver Acceptability of Mobile Phone Use for Pediatric Cancer Care in Tanzania: Cross-sectional Questionnaire Study
Authors: Schroeder Kristin , Maiarana James , Gisiri Mwitasrobert , Joo Emma , Muiruri Charles , Zullig Leah , Masalu Nestory , Vasudevan Lavanya
Published: May 2021

Background

There is a 60% survival gap between children diagnosed with cancer in low- and middle-income countries (LMICs) and those in high-income countries. Low caregiver knowledge about childhood cancer and its treatment results in presentation delays and subsequent treatment abandonment in LMICs. However, in-person education to improve caregiver knowledge can be challenging due to health worker shortages and inadequate training. Due to the rapid expansion of mobile phone use worldwide, mobile health (mHealth) technologies offer an alternative to delivering in-person education.

Objective

The aim of this study is to assess patterns of mobile phone ownership and use among Tanzanian caregivers of children diagnosed with cancer as well as their acceptability of an mHealth intervention for cancer education, patient communication, and care coordination.

Methods

In July 2017, caregivers of children <18 years diagnosed with cancer and receiving treatment at Bugando Medical Centre (BMC) were surveyed to determine mobile phone ownership, use patterns, technology literacy, and acceptability of mobile phone use for cancer education, patient communication, and care coordination. Descriptive statistics were generated from the survey data by using mean and SD values for continuous variables and percentages for binary or categorical variables.

Results

All eligible caregivers consented to participate and completed the survey. Of the 40 caregivers who enrolled in the study, most used a mobile phone (n=34, 85%) and expressed high acceptability in using these devices to communicate with a health care provider regarding treatment support (n=39, 98%), receiving laboratory results (n=37, 93%), receiving reminders for upcoming appointments (n=38, 95%), and receiving educational information on cancer (n=35, 88%). Although only 9% (3/34) of mobile phone owners owned phones with smartphone capabilities, about 74% (25/34) self-reported they could view and read SMS text messages.

Conclusions

To our knowledge, this is the first study to assess patterns of mobile phone ownership and use among caregivers of children with cancer in Tanzania. The high rate of mobile phone ownership and caregiver acceptability for a mobile phone–based education and communication strategy suggests that a mobile phone–based intervention, particularly one that utilizes SMS technology, could be feasible in this setting.
Purwarupa Spirometer Digital Berbasis LABVIEW
Authors: Sabani Wahyu , Sumanto Budi
Published: May 2021

Spirometer is an instrument used to measure the vital capacity of the human lung and is usually only found in large hospitals or clinical laboratories because of its relatively high price. However, to find out how this instrument works, a prototype of the spirometer is made by utilizing a Labview-based interface. This prototype was developed by making an air channel or funnel the size of a human mouth which then the air will be detected by a pressure sensor connected to a signal conditioning circuit and then the measurement information data is forwarded by the Arduino to a computer to be processed into digital data which is then converted into vital capacity information data. lungs. The results obtained from this research are that it can make a spirometer prototype according to its function which is hoped to be used as a learning medium in the field of medical instrumentation by measuring the vital capacity of the lungs in the form of height, age, and gender of a person, besides that the results are in the form of a graphic display. and numerical data from the measurement process on the GUI display in LabVIEW. This prototype was calibrated using a syringe with a volume of 2 liters and the accuracy rate was 99.63% with a standard deviation value of ± 70.61 ml and a precision value of 1.76% from these results.
ПОДСИСТЕМА АВТОМАТИЗИРОВАННОГО УПРАВЛЕНИЯ ПРАВАМИ ДОСТУПА ПОЛЬЗОВАТЕЛЕЙ К ИНФОРМАЦИОННЫМ РЕСУРСАМ ПРЕДПРИЯТИЯ
Authors: Рычкова А. , Чепурина Ю.
Published: May 2021

Деятельность любого предприятия сегодня связана с обработкой и хранением большого объема информации в различных, зачастую децентрализованных, информационных системах. Постоянно появляются новые виды угроз несанкционированного доступа к конфиденциальной информации. Целью работы является снижение рисков информационной безопасности предприятия за счет создания подсистемы автоматизированного управления правами доступа пользователей к информационным ресурсам предприятия. Предлагаемые модели построены с использованием подхода структурного анализа и проектирования, адаптированного для решения задач в области защиты информации, и являются основой для проектирования подсистемы автоматизированного управления правами доступа пользователей к информационным ресурсам предприятия.
ТЕХНОЛОГИЯ PoLAN КАК НОВЫЙ ФОРМАТ НИЖНЕГО УРОВНЯ ИНФОРМАЦИОННЫХ СИСТЕМ ОФИСНЫХ ЗДАНИЙ
Authors: Шевелев С. , Семенов А.
Published: May 2021

Анализируются варианты реализации информационной инфраструктуры объек­тов недвижимости на основе технологии пассивных волоконно-оптических сетей PoLAN при различных сценариях ее внедрения. Отмечается простота перехода к технологии PoLAN при выполнении несложных дополнительных условий. Продемонстрировано, что наибольший эффект обращение к ней дает в случае нового строительства при использовании в горизонтальной части информационной проводки активной консолидационной точки или ее аналога.
ТЕНДЕНЦИИ РАЗВИТИЯ СЕТЕЙ ДОСТУПА В БЛИЖАЙШИЕ ГОДЫ
Authors: Соколов Н.
Published: May 2021

Выделяются, с точки зрения системных аспектов эволюции сетей электросвязи, три важные тенденции развития "первой мили". Приводятся результаты анализа ряда аспектов, определяющих развитие сетей доступа. Акцентируется внимание на важности проведения междисциплинарных исследований и практического применения полученных результатов.
ЗАМЕТКИ ОБ (ИНЖЕКТОРАХ) POWER OVER ETHERNET. ЧАСТЬ 3
Authors: Терентьев Д.
Published: May 2021

Статья посвящена вопросам технологии Power over Ethernet – разработке инжекторов, их совместимости с другим оборудованием, проблемам эксплуатации. В течение многих лет периодически возникали проблемы, которые автору приходилось решать, и вопросы, которые требовали ответа. Некоторые из них коротко описаны в этих заметках, в заголовке которых слово "инжекторы" помещено в скобки, так как все описанное относится, в значительной степени, к технологии PoE в целом.
РАЗРАБОТКА ЗАЩИЩЕННОГО МОБИЛЬНОГО ПРИЛОЖЕНИЯ ДЛЯ СЕРВИСА IPTV
Authors: Ряполова Е. , Студянникова М. , Преснов А.
Published: May 2021

Представлены результаты разработки защищенного мобильного приложения для сервиса IPTV с голосовым управлением. Проведен выбор разработки среды программирования и сравнительный анализ алгоритмов нечеткого поиска, в результате чего был выбран алгоритм Левенштейна. Разработаны структура мобильного приложения, удобный и понятный интерфейс и мобильное приложение с голосовым управлением. Выполнено проектирование модуля голосового распознавания с использованием алгоритма Левенштейна.