bluuebunny/crossref_metadata_2025 huggingface dataset:
Entertaining Aspect in Tourist Service
Authors: Nuzhdina Marina Vladimirovna
Published: February 2021

Animation activities at the enterprises of the tourism industry play a great role in creating a favorable psychological climate in the tourist complex, thereby creating the preconditions for the return of the tourists, which significantly contributes to an increase in the image and profit of the recreation center.
The entertainment, leisure and sports sector play an important role in the general infrastructure of the tourism industry and solves various problems (first of all, education, the formation of an optimistic mood, education, filling the rest, developing the culture of people, etc.). Filling his pastime with entertainment and sports, a person rests and recovers one’s strength.
Hibridismo na gestão escolar
Authors: Perboni Fabio , Oliveira Regina Tereza Cestari de
Published: February 2021

O artigo apresenta resultados de pesquisa que analisa as percepções de diretores escolares sobre a gestão das escolas, elegendo como foco de análise as escolas públicas da cidade de Dourados – MS, captadas por meio de entrevistas, ancorada em abordagem qualitativa. Observou-se que coexistem, no trabalho dos diretores escolares, ao menos três fontes de influência: a) o patrimonialismo do qual derivam práticas clientelistas na gestão da coisa pública; b) a gestão democrática consolidada como princípio constitucional da educação pública, e; c) a Nova Gestão Pública que se apresenta no campo discursivo como novo padrão de eficiência a ser adotado em todos os âmbitos da administração. Constata-se a existência de um amálgama das três fontes de influência, nas percepções dos diretores sobre a gestão escolar. Localiza a presença de concepções e práticas clientelistas historicamente presentes nas instituições escolares em convivência com elementos da gestão democrática e da nova gestão pública. As percepções identificadas traduzem um hibridismo das concepções, recebendo influências díspares destas três fontes, ainda que seja perceptível uma recusa do patrimonialismo.
The Effectiveness of Nanoparticles on Gene Therapy for Glioblastoma Cells Apoptosis: A Systematic Review
Authors: Alavian Firoozeh , Ghasemi Sorayya
Published: February 2021

Background:

Glioblastoma multiforme (GBM) is the most common and fatal type of
glioma. Nanoparticles (NPs) are used in new approaches for the delivery of gene therapy in the
treatment of GBM.

Introduction:

The purpose of this article was to review the efficacy of NPs as the targeted carriers
in the gene therapy aimed at apoptosis in GBM.

Methods:

The appropriate keywords such as nanoparticle, glioblastoma, gene therapy, apoptosis,
and related words were used to search from PubMed, ISI Web of Science, and Scopus for relevant
publications up to September 4, 2020, with no language restrictions. The present systematic review
was performed based on PRISMA protocol and reviewed the articles evaluating the effects of nanoparticles,
carriers of various gene therapies essentials, on GBM cells apoptosis in vitro and in vivo.
The selected articles were considered using specific scores on the quality of the articles. Data extraction
and quality evaluation were performed by two reviewers.

Result:

Of 101 articles retrieved, forty-two met the inclusion criteria and were, therefore, subjected
to the final deduction. The most widely used NP in GBM gene therapy studies is polyamidoamine
(PAMAM). The most common gene therapy approach for apoptosis in GBM is using siRNAs.

Conclusions:

In conclusion, these studies validated that NPs could be a practical choice to enhance
the efficiency and specific delivery in gene therapies for GBM cell apoptosis. However, the choice
of NP type and gene therapy mechanism affect the GBM cell apoptotic efficiency.
Withdrawal Notice: Suitable Conditions for Effective Inter Chip Communication based on Surface Wave Phenomenon
Authors: Penna Mahaveer , Shankar Shiva , Murthy Keshava , Jijesh J J
Published: February 2021

The article has been withdrawn at the request of the authors and editor of the journal Recent Advances in
Electrical and Electronic Engineering due to incoherent content.

Bentham Science apologizes to the readers of the journal for any inconvenience this may have caused.

The Bentham Editorial Policy on Article Withdrawal can be found at https://benthamscience.com/editorial-policies-main.php

Bentham Science Disclaimer:

It is a condition of publication that manuscripts submitted to this journal have not been published and will
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agree that the publishers have the legal right to take appropriate action against the authors, if plagiarism
or fabricated information is discovered. By submitting a manuscript, the authors agree that the copyright
of their article is transferred to the publishers if and when the article is accepted for publication.
Favipiravir Use in Covid-19 Treatment: Discussed Issues…
Authors: KÜÇÜK İzzet Göker , ÖNGEL Kurtuluş
Published: February 2021

In our country, there is serious debate about prevention and treatment methods during the Covid-19 pandemic, which began with the first case on March 11, 2020.The use of masks, social distance and hygiene measures as protection methods are accepted by everyone. However, one of the most confusing issues in treatment methods is experienced in favipiravir, which is introduced as a miracle drug. Considering the current practices of the Ministry of health of the Republic of Turkey, it suggests that in the coming days, family doctors will take a more active role in the treatment of patients with Covid-19. In this article, weaimed to share controversial situations and correct practices about favipiravir.
USING MOBILE APPLICATIONS IN CANCER SCANNING AND EVALUATING THE EFFECTIVENESS
Authors: CANKAYA Basak Asli , YILDIRIM BAŞ Funda , CANKAYA İbrahim Arda
Published: February 2021

Aim: The study aims to ensure that people receive professional and permanent preventive healthcare services in the light of current technology in the case of cancer, increase the awareness about cancer screenings, and activate effectively informed decision-making mechanisms. Methods: We developed a mobile application contains basic information about cancers, screening methods and periods. Individuals downloaded the application, received reminders to have their examinations according to the national cancer-screening program for breast, cervical, and colon cancers. The data used belongs to the individuals who downloaded the app between August and December 2019 and filled out the questionnaire we prepared in the app. Results: The mobile application was downloaded 1050 times where, there were 539 registrations in the application, and the number of completes questionnaires is 344. There were 142 (26.3%) men and 397 (73.7%) women. The mean age was 33.3 ± 11.5. Health care workers and teachers found the application significantly more beneficial to promote cancer screening (p = 0.002). Ages and professions of the participants significantly associated with their opinions regarding the application completed their knowledge gaps and considering continue to use the application (p <0.0001, p = 0.02), (p = 0.04, p = 0.01). Prospects for recommending the application differed significantly with age, body mass index, and profession (p = 0.01, p = 0.02, p = 0.01) Conclusion: Awareness should be increased about cancer screening practices within the scope of primary prevention. Information and warnings should be carried out regularly to ensure that examinations and investigations are done on time. Applications should be developed under the leadership of the Ministry of Health and must be ensured to be reached to more people.
High-Performance Polymers for Aeronautic Wires Insulation: Current Uses and Future Prospects
Authors: Lopez Gérald
Published: February 2021

SAFRAN Tech - Materials & Processes Department, Rue des jeunes bois, Châteaufort CS 80112, 78772 Magny les Hameaux, France
Internet-Specific Epistemic Beliefs in Medicine and Intention to Use Evidence-Based Online Medical Databases Among Health Care Professionals: Cross-sectional Survey
Authors: Chiu Yen-Lin , Lee Yu-Chen , Tsai Chin-Chung
Published: February 2021

Background

Evidence-based medicine has been regarded as a prerequisite for ensuring health care quality. The increase in health care professionals’ adoption of web-based medical information and the lack of awareness of alternative access to evidence-based online resources suggest the need for an investigation of their information-searching behaviors of using evidence-based online medical databases.

Objective

The main purposes of this study were to (1) modify and validate the internet-specific epistemic beliefs in medicine (ISEBM) questionnaire and (2) explore the associations between health care professionals’ demographics, ISEBM, and intention to use evidence-based online medical databases for clinical practice.

Methods

Health care professionals in a university-affiliated teaching hospital were surveyed using the ISEBM questionnaire. The partial least squares-structural equation modeling was conducted to analyze the reliability and validity of ISEBM. Furthermore, the structural model was analyzed to examine the possible linkages between health professionals’ demographics, ISEBM, and intention to utilize the evidence-based online medical databases for clinical practice.

Results

A total of 273 health care professionals with clinical working experience were surveyed. The results of the measurement model analysis indicated that all items had significant loadings ranging from 0.71 to 0.92 with satisfactory composite reliability values ranging from 0.87 to 0.94 and average variance explained values ranging from 0.70 to 0.84. The results of the structural relationship analysis revealed that the source of internet-based medical knowledge (path coefficient –0.26, P=.01) and justification of internet-based knowing in medicine (path coefficient 0.21, P=.001) were correlated with the intention to use evidence-based online medical databases. However, certainty and simplicity of internet-based medical knowledge were not. In addition, gender (path coefficient 0.12, P=.04) and academic degree (path coefficient 0.15, P=.004) were associated with intention to use evidence-based online medical databases for clinical practice.

Conclusions

Advancing health care professionals’ ISEBM regarding source and justification may encourage them to retrieve valid medical information through evidence-based medical databases. Moreover, providing support for specific health care professionals (ie, females, without a master’s degree) may promote their intention to use certain databases for clinical practice.
Learning From Others Without Sacrificing Privacy: Simulation Comparing Centralized and Federated Machine Learning on Mobile Health Data
Authors: Liu Jessica Chia , Goetz Jack , Sen Srijan , Tewari Ambuj
Published: February 2021

Background

The use of wearables facilitates data collection at a previously unobtainable scale, enabling the construction of complex predictive models with the potential to improve health. However, the highly personal nature of these data requires strong privacy protection against data breaches and the use of data in a way that users do not intend. One method to protect user privacy while taking advantage of sharing data across users is federated learning, a technique that allows a machine learning model to be trained using data from all users while only storing a user’s data on that user’s device. By keeping data on users’ devices, federated learning protects users’ private data from data leaks and breaches on the researcher’s central server and provides users with more control over how and when their data are used. However, there are few rigorous studies on the effectiveness of federated learning in the mobile health (mHealth) domain.

Objective

We review federated learning and assess whether it can be useful in the mHealth field, especially for addressing common mHealth challenges such as privacy concerns and user heterogeneity. The aims of this study are to describe federated learning in an mHealth context, apply a simulation of federated learning to an mHealth data set, and compare the performance of federated learning with the performance of other predictive models.

Methods

We applied a simulation of federated learning to predict the affective state of 15 subjects using physiological and motion data collected from a chest-worn device for approximately 36 minutes. We compared the results from this federated model with those from a centralized or server model and with the results from training individual models for each subject.

Results

In a 3-class classification problem using physiological and motion data to predict whether the subject was undertaking a neutral, amusing, or stressful task, the federated model achieved 92.8% accuracy on average, the server model achieved 93.2% accuracy on average, and the individual model achieved 90.2% accuracy on average.

Conclusions

Our findings support the potential for using federated learning in mHealth. The results showed that the federated model performed better than a model trained separately on each individual and nearly as well as the server model. As federated learning offers more privacy than a server model, it may be a valuable option for designing sensitive data collection methods.
Husbands’ Knowledge of Breast Cancer and Their Wives’ Attitudes and Practices Related to Breast Cancer Screening in Saudi Arabia: Cross-sectional Online Survey
Authors: Sabgul Afnan Abdulnasir , Qattan Ameerah M N , Hashmi Rubayyat , Al-Hanawi Mohammed Khaled
Published: February 2021

Background

Despite Saudi Arabia’s free and well-established cancer care program, breast cancer incidence and mortality are rising. Husbands’ knowledge, and wives’ attitudes and practices related to breast cancer screening are not well understood in Saudi Arabia.

Objective

The aim of this study was to investigate husbands’ knowledge, and wives’ attitudes and practices related to breast cancer screening in Saudi Arabia.

Methods

This cross-sectional study collected data from 403 husbands in the holy city of Makkah through an online self-reported questionnaire over a period of 2 months, from May 6 to July 7, 2020. Tabulation, bivariate, and multiple regression analyses were the major tools used for data analysis. Multivariate logistic regressions were used to examine the association between husbands’ knowledge and wives’ behavior regarding breast cancer screening methods.

Results

Husbands’ knowledge score (a 1-point increase) was significantly associated with the wives’ utilization of mammograms (adjusted odds ratio [AOR] 1.089, 95% CI 1.024-1.159) and breast self-examination (AOR 1.177, 95% CI 1.105-1.255). Husbands’ knowledge also influenced the wives’ attitudes toward learning about breast self-examination (AOR 1.138, 95% CI 1.084-1.195). There was no significant association between husbands’ knowledge and wives’ utilization of clinical breast examination. However, richer husbands showed a socioeconomic gradient concerning their wives’ utilization of clinical breast examinations (AOR 2.603, 95% CI 1.269-5.341).

Conclusions

Overall, husbands’ knowledge of breast cancer influences wives’ attitudes and practices related to breast cancer screening methods in Saudi Arabia. Thus, interventions delivered to husbands might increase breast cancer awareness and survival.
Technology-Based Psychological Interventions for Young Adults With Early Psychosis and Cannabis Use Disorder: Qualitative Study of Patient and Clinician Perspectives
Authors: Tatar Ovidiu , Abdel-Baki Amal , Tra Christophe , Mongeau-Pérusse Violaine , Arruda Nelson , Kaur Navdeep , Landry Vivianne , Coronado-Montoya Stephanie , Jutras-Aswad Didier
Published: February 2021

Background

The persistence of cannabis use disorder (CUD) in young adults with first-episode psychosis (FEP) is associated with poor clinical and functional outcomes. Face-to-face psychological interventions are effective in treating CUD. However, their use in early intervention services (EISs) for psychosis is inconsistent because of barriers, including high workload and heterogeneity in training of clinicians and lack of motivation for treatment among patients. Tailoring new technology-based psychological interventions (TBPIs) to overcome these barriers is necessary to ensure their optimal acceptability.

Objective

The aim of this study is twofold: to explore psychological intervention practices and intervention targets that are relevant for treating CUD in individuals with early psychosis and to explore factors related to the development and implementation of a technology-assisted psychological intervention.

Methods

A total of 10 patients undergoing treatment for FEP and CUD in EISs participated in a focus group in June 2019. Semistructured individual interviews were conducted with 10 clinicians working in first-episode clinics in the province of Québec, Canada. A hybrid inductive-deductive approach was used to analyze data. For the deductive analysis, we used categories of promoting strategies found in the literature shown to increase adherence to web-based interventions for substance use (ie, tailoring, reminders, delivery strategies, social support, and incentives). For the inductive analysis, we identified new themes through an iterative process of reviewing the data multiple times by two independent reviewers.

Results

Data were synthesized into five categories of factors that emerged from data collection, and a narrative synthesis of commonalities and differences between patient and clinician perspectives was produced. The categories included attitudes and beliefs related to psychological interventions (eg, behavioral stage of change), strategies for psychological interventions (eg, motivational interviewing, cognitive behavioral therapy, psychoeducation, stress management), incentives (eg, contingency management), general interest in TBPIs (eg, facilitators and barriers of TBPIs), and tailoring of TBPIs (eg, application needs and preferences, outcome measures of interest for clinicians).

Conclusions

This study provides a comprehensive portrait of the multifaceted needs and preferences of patients and clinicians related to TBPIs. Our results can inform the development of smartphone- or web-based psychological interventions for CUD in young adults with early psychosis.
Computer Mouse Movements as an Indicator of Work Stress: Longitudinal Observational Field Study
Authors: Banholzer Nicolas , Feuerriegel Stefan , Fleisch Elgar , Bauer Georg Friedrich , Kowatsch Tobias
Published: February 2021

Background

Work stress affects individual health and well-being. These negative effects could be mitigated through regular monitoring of employees’ stress. Such monitoring becomes even more important as the digital transformation of the economy implies profound changes in working conditions.

Objective

The goal of this study was to investigate the association between computer mouse movements and work stress in the field.

Methods

We hypothesized that stress is associated with a speed-accuracy trade-off in computer mouse movements. To test this hypothesis, we conducted a longitudinal field study at a large business organization, where computer mouse movements from regular work activities were monitored over 7 weeks; the study included 70 subjects and 1829 observations. A Bayesian regression model was used to estimate whether self-reported acute work stress was associated with a speed-accuracy trade-off in computer mouse movements.

Results

There was a negative association between stress and the two-way interaction term of mouse speed and accuracy (mean −0.32, 95% highest posterior density interval −0.58 to −0.08), which means that stress was associated with a speed-accuracy trade-off. The estimated association was not sensitive to different processing of the data and remained negative after controlling for the demographics, health, and personality traits of subjects.

Conclusions

Self-reported acute stress is associated with computer mouse movements, specifically in the form of a speed-accuracy trade-off. This finding suggests that the regular analysis of computer mouse movements could indicate work stress.
Australian Children's Exposure to, and Engagement With, Web-Based Marketing of Food and Drink Brands: Cross-sectional Observational Study (Preprint)
Authors: Kelly Bridget , Bosward Rebecca , Freeman Becky
Published: February 2021

BACKGROUND

Food is one of the most frequently promoted commodities, and promoted foods are overwhelmingly unhealthy. Marketing normalizes unhealthy foods, creates a positive brand image, and encourages overconsumption. Limited research is available to describe the extent of food marketing to children on web-based media, and measuring actual exposure is challenging.

OBJECTIVE

This study aims to monitor the extent of children’s exposure to web-based media food marketing as an essential step in increasing the accountability of industry and governments to protect children.

METHODS

Children aged 13-17 years were recruited from October 2018 to March 2019. Children recorded their mobile device screen for 2 weekdays and 1 weekend day any time they visited relevant web-based platforms. After each day, the participants uploaded the video files to a secure server. Promoted products were defined using the World Health Organization European Region nutrient profile model.

RESULTS

The sample of 95 children uploaded 267.8 hours of video data. Children saw a median of 17.4 food promotions each hour on the internet. Considering the usual time spent on the internet on mobile devices, children would be exposed to a median of 168.4 food promotions on the web on mobile devices per week, 99.5 of which would not be permitted to be marketed based on nutrient profiling criteria. Most promotions (2613/4446, 58.77%) were peer endorsed and derived from third-party sources.

CONCLUSIONS

Exposure to brand content that is seemingly endorsed by peers or web-based communities likely heightens the effects of marketing on children. Regulations to protect children from this marketing must extend beyond paid advertising to paid content in posts generated through web-based communities and influencers.

CLINICALTRIAL
Correction: Measurement of Digital Literacy Among Older Adults: Systematic Review (Preprint)
Authors: Oh Sarah Soyeon , Kim Kyoung-A , Kim Minsu , Oh Jaeuk , Chu Sang Hui , Choi JiYeon
Published: February 2021

UNSTRUCTURED

REMOVE
The risk of inappropriate timing of complementary foods introduction is increased among first-time mothers and poor households
Authors: Puspitorini Puspitorini , Lestari Prasetya , Paramashanti Bunga Astria
Published: February 2021

Background: Global recommendations suggest mothers provide the first complementary food to infants when they reach six months of age. Failure to introduce complementary foods promptly may put infants in adverse health and nutrition outcomes. Objective: This study aimed to analyze factors associated with inappropriate timing of complementary foods introduction in Kebumen Regency. Methods: This study used a cross-sectional design. A multistage cluster sampling was employed to select 355 mothers of children aged 6-23 months in Kebumen Regency. Our dependent variable was the timing of complementary food introduction. Meanwhile, independents variables included factors at the child, parental, and household levels. Univariate and multiple logistic regressions were performed in this study. Results: There was 39.15% of young children received inappropriate timing of complementary feeding. Being the second-born child or above (OR=0.56; 95%CI: 0.33-0.95) and coming from high-income households (OR= 0.57; 95%CI: 0.36-0.90) were protective factors of inappropriate timing of complementary foods introduction. Other variables such as maternal age, maternal education, maternal occupation, father’s education, and family support were not significantly associated with incorrect timing of complementary feeding. Conclusions: The proportion of inappropriate timing of complementary foods introduction in Kebumen Regency is alarming and is mainly explained by child’s birth rank and household economic status suggesting the importance of targeting nutritional education to first-time mothers as well as poor households.
Perubahan antropometri, kalsium darah, tekanan darah, dan kebugaran fisik akibat asupan susu kambing pada olahragawan
Authors: Yusni Yusni , Amiruddin Amiruddin
Published: February 2021

Changes in anthropometry, blood calcium, blood pressure, and physical fitness due to goat's milk intake in athletesBackground: The intake of healthy-balanced nutrition is needed by athletes. The complex nutritional content of goat milk such as protein, fat, carbohydrate, vitamin, and mineral acts as sports nutrition during and after training. Objective: This study aims to analyze the effects of goat milk on physical fitness, anthropometrics, blood calcium, and blood pressure in athletes. Methods: A clinical trial was conducted using healthy human subjects. Subjects were runners (n=10 people) as the control group and gymnasts (n=19 people) as the treatment group, male, age 21-27 years, and healthy. Bodyweight (BW), Height, and Body Mass Index (BMI), blood calcium, Systolic Blood Pressure (SBP), Diastolic Blood Pressure (DBP), and physical fitness were examined two times, before and after consuming goat milk. Intervention: fresh goat milk, 250 mg/day (after dinner), and given for 90 days. Data were analyzed using a paired sample t-test and independent sample t-test. Results: There was no difference between BW (p=0.07), BMI (p=0.08), and DBP (p=0.24), but instead there was a significant difference in SBP (p=0.00) before and after goat milk intervention in the experimental group. Blood calcium was significantly increased (p=0.00) in the intervention group, whereas reverse decreased significantly (p=0.02) in controls. A significant difference before and after therapy was found in speed (p=0.00), arm muscle endurance (p=0.01), an-aerobic endurance (p=0.00), agility (p=0.02), however, there was no significant difference between leg muscle power (p=0.13), flexibility (p=0.23), an endurance of abdominal muscles (p=0.26), VO2 max (p=1.15) in the intervention group. Conclusions: Regular consumption of goat milk can reduce SBP, increase blood calcium levels, and improve physical fitness (speed, arm muscle endurance, anaerobic endurance, and agility) in athletes. Goat milk is an essential role in sports nutrition for physical fitness and athlete's health.
Dietary acid load berhubungan dengan sindrom metabolik dan kesehatan mental pada mahasiswi obesitas
Authors: Jauharany Firdananda Fikri , Kartasurya Martha Irene , Kartini Apoina , Dieny Fillah Fithra , Sawitri Dian Ratna , Noer Etika Ratna
Published: February 2021

The dietary acid load was associated with metabolic syndrome and mental health among obese college studentsBackground: The prevalence of metabolic syndrome has been increasing every year in the young population. The western diet is one of the causes that makes excess acid in the body called a dietary acid load. On the other hand, the high dietary acid load was associated with decreased mental health status.Objective: To examine the association between dietary acid load and the risk of metabolic syndrome and mental health.Methods: This was a cross-sectional study conducted with 115 female students in Semarang aged 18-22 years. The dietary acid load was evaluated through a potential renal acid load (PRAL), the risk score for metabolic syndrome was calculated by Metabolic syndrome risk score. Mental health status was assessed through levels of self-esteem and levels of anxiety. The level of self-esteem was measured by the Rosenberg Self-Esteem Scale questionnaire, while the level of anxiety was measured by the State Anxiety Inventory questionnaire. Multiple linear regression models with adjustment for a potential cofounding variable were used to evaluate the association between dietary acid load with metabolic syndrome scores, self-esteem scores, and anxiety scores.Results: The mean PRAL score was 6.11 ± 9.72 mEq/day indicated the intake of the subjects was the dietary acid load. 13% of subjects had metabolic syndrome, and 87% had a pre-metabolic syndrome. 36.5% of the subjects have low self-esteem scores. The anxiety level score calculation shows that 59.1% of the subjects are at high risk of anxiety. Pearson test showed that PRAL scores were correlated with anxiety scores (r=0,669; p<0,001). The linear regression test showed that PRAL scores were correlated with metabolic syndrome scores (β=0.899; p<0.001) and self-esteem scores (β =-0.069; p=0.047).Conclusions: High dietary acid load may be a risk factor related to the development of metabolic disorders and decreased mental health status in females with obesity.
ЭЛЕМЕНТЫ СБОЕУСТОЙЧИВЫХ RNS ЗУ ДЛЯ ПАРАЛЛЕЛЬНЫХ И ПОТОЧНЫХ ВЫЧИСЛЕНИЙ
Authors: Антонов А.А. , Прозорова А.Г. , Соловьева Л.А. , Краснюк А.А.
Published: February 2021

Рассматривается концепция построения сбоеустойчивых ОЗУ для параллельных и поточных вычислений, использующих систему кодирования данных в остаточных классах. Представлены варианты функционально-алгоритмической реализации основных элементов ЗУ, результаты моделирования и определены основные ограничения для их аппаратной реализации.
РАЗРАБОТКА IP-БЛОКОВ EEPROM НА ОСНОВЕ СТАНДАРТНЫХ КМОП-ТЕХПРОЦЕССОВ С ОДНИМ ПОЛИКРЕМНИЕМ
Authors: Ермаков И.В. , Нуикин А.В. , Шелепин Н.А.
Published: February 2021

Представлены результаты разработки и исследования ячеек и IP-блоков EEPROM на основе стандартных КМОП-техпроцессов уровня 180 и 90 нм с одним уровнем поликремния.
СХЕМА НОРМАЛИЗАЦИИ КАНАЛА СБОРА ДАННЫХ НА ОСНОВЕ УСИЛИТЕЛЯ С ПРОГРАММИРУЕМЫМ КОЭФФИЦИЕНТОМ УСИЛЕНИЯ
Authors: Рогаткин Ю.Б.
Published: February 2021

Представлен программируемый усилитель для использования вместе с аналого-цифровым преобразователем средней точности и быстродействия в микроконтроллерах устройств промышленного Итернета вещей.
ПОВЕДЕНЧЕСКИЕ МОДЕЛИ КОНДЕНСАТОРОВ И ДРОССЕЛЕЙ И ВЛИЯНИЕ ИХ ПАРАЗИТНЫХ ПАРАМЕТРОВ НА СТРУКТУРУ И ХАРАКТЕРИСТИКИ РАДИОЭЛЕКТРОННЫХ УСТРОЙСТВ
Authors: Дмитриков В.Ф. , Исаев В.М. , Куневич А.В.
Published: February 2021

Использование поведенческих моделей дросселей и конденсаторов при проектировании ФРП позволило выявить принципиально важный факт, что ЧХ ослабления ФРП с учетом разработанных поведенческих моделей реальных, а не идеальных дросселей и конденсаторов имеет характеристики режекторного фильтра с ограниченной частотой ослабления высокочастотных помех, а не характеристики ослабления фильтра низких частот. Выявление этого факта приводит к возможности использовать при расчете ФРП методику расчета фильтра с характеристиками не ФНЧ, а с характеристиками режекторного фильтра с требуемой полосой подавления помех, зависящей от паразитных параметров.
МОДЕЛИРОВАНИЕ ЭЛЕМЕНТОВ КРИТИЧНОЙ РАДИОЭЛЕКТРОННОЙ АППАРАТУРЫ: НОВЫЕ ПОДХОДЫ, МОДЕЛИ И АЛГОРИТМЫ, ИХ РЕАЛИЗАЦИЯ И ПРИМЕНЕНИЕ
Authors: Газизов Т.Р. , Заболоцкий А.М. , Куксенко С.П. , Газизов Т.Т. , Квасников А.А. , Комнатнов М.Е. , Суровцев Р.С.
Published: February 2021

Описаны результаты использования комплексного подхода по разработке отечественной системы компьютерного моделирования задач электромагнитной совместимости радиоэлектронной аппаратуры на основе новых моделей, алгоритмов и подходов для квазистатического анализа многопроводных структур, оценки эффективности экранирования корпусов и многократного решения СЛАУ.
ОПЫТ СОПРЯЖЕНИЯ СИСТЕМЫ НЕПРЕРЫВНОЙ ИНТЕГРАЦИИ JENKINS И ПО CADENCE VMANAGER ДЛЯ ВЕРИФИКАЦИИ СБИС СИСТЕМА НА КРИСТАЛЛЕ»
Authors: Андрианов А.В.
Published: February 2021

В статье рассмотрены особенности совместного использования платформы непрерывной интеграции Jenkins совместно с решением Cadence vManager для обеспечения сбора статистической информации о состоянии проекта СБИС в ходе регрессионного тестирования.
ЭКВИВАЛЕНТНЫЕ ПРЕОБРАЗОВАНИЯ МОДЕЛИ СВЯЗАННЫХ ОСЦИЛЛЯТОРОВ ДЛЯ ПРОГРАММ СХЕМОТЕХНИЧЕСКОГО АНАЛИЗА
Authors: Гурарий М.М. , Русаков С.Г.
Published: February 2021

Предлагается процедура для численного моделирования связанных осцилляторов на основе модели Курамото с произвольными функциями связи, заданными рядами Фурье. Входные данные процедуры, представленные структурами системы MATLAB, включают списки параметров осцилляторов и параметров их связей. На их основе процедура генерирует описание эквивалентной электрической схемы, для которой уравнения Кирхгофа совпадают с уравнениями модели Курамото ансамбля осцилляторов. Применение стандартного схемного симулятора к эквивалентной схеме обеспечивает расчет ее переходных процессов, которые численно совпадают с переходными процессами в модели Курамото. Приведены примеры применения процедуры, подтверждающие эффективность предложенного подхода при моделировании связанных осцилляторов.
ВЛИЯНИЕ КАЧЕСТВЕННЫХ И КОЛИЧЕСТВЕННЫХ ХАРАКТЕРИСТИК ИНФОРМАЦИОННОГО ОБЕСПЕЧЕНИЯ НА ЭФФЕКТИВНОСТЬ РЕШЕНИЯ ЗАДАЧ СИНТЕЗА
Authors: Алексеев В.В. , Боков С.И. , Колядин А.И. , Чупринов А.А.
Published: February 2021

В статье рассмотрено и проанализировано влияние качественных и количественных характеристик информационного обеспечения на эффективность решения задач синтеза.
МОДЕЛИРОВАНИЕ ТЕПЛОВЫХ ПРОЦЕССОВ В МОЩНЫХ СВЧ GAN-ТРАНЗИСТОРАХ
Authors: Пантелеев А.И. , Тимошенков В.П. , Хлыбов А.И. , Родионов Д.В.
Published: February 2021

В работе представлены результаты моделирования тепловых процессов в мощных СВЧ GaN-транзисторах. Проведена оценка влияния элементов конструкции транзисторов на их тепловой режим. В качестве объектов исследования рассмотрены полевые транзисторы на GaN, изготовленные с использованием технологии field-plate. Проведен анализ влияния элемента field-plate на тепловой режим транзистора, сделано сравнение с вкладом других конструктивных решений.
МИКРОПОЛОСКОВАЯ ЩЕЛЕВАЯ АНТЕННА К3-ДИАПАЗОНА С КРУГОВОЙ ПОЛЯРИЗАЦИЕЙ
Authors: Кондратьев А.В. , Скобелев Д.Н. , Меджитов Р.Д.
Published: February 2021

Разработана компактная печатная щелевая антенна с объемной резонирующей полостью прямоугольной формы для диапазона частот 33-35,5 ГГц. Антенна может быть изготовлена с левосторонней и правосторонней круговой поляризациями. Основные параметры антенны: ширина диаграммы направленности в угломестной плоскости порядка - 70°, коэффициент усиления - 8,6 dBi, измеренный коэффициент эллиптичности не превышает 3 дБ во всем диапазоне частот при КСВ меньше 2.
ДАТЧИК ДАВЛЕНИЯ НА ПОВЕРХНОСТНЫХ АКУСТИЧЕСКИХ ВОЛНАХ НА ОСНОВЕ ЛИНИИ ЗАДЕРЖКИ
Authors: Анцев И.Г. , Богословский С.В. , Сапожников Г.А.
Published: February 2021

Предложена новая конструкция датчиков давления, реализующая зеркальную топологию чувствительного элемента. Применение линий задержки позволяет создавать пассивные устройства, работающие на больших дальностях. Предлагаемое решение расширяет область применения зеркальных топологий для измерений давления.
ТЕХНОЛОГИЯ ВРЕМЕННОГО БОНДИНГА ДЛЯ ФОРМИРОВАНИЯ СВЧ МЭМС-СТРУКТУР
Authors: Гусев Е.Э. , Фомичёв М.Ю. , Махиборода М.А. , Дедкова А.А.
Published: February 2021

Отработана операция временного бондинга с использованием в качестве носителя кварцевой пластины. Получена экспериментальная зависимость толщины адгезионного слоя от скорости вращения центрифуги. Толщина утоненной рабочей Si-пластины 0150 мм составила 93 ± 3 мкм. Прогиб утоненной структуры не превышает 30 мкм.
ФОРМИРОВАНИЕ МЕЖСЛОЙНЫХ ОТВЕРСТИЙ В ДИЭЛЕКТРИКЕ СЛОЕВ ПЕРЕРАСПРЕДЕЛЕНИЯ МИКРОСБОРОК СО ВСТРОЕННЫМИ КРИСТАЛЛАМИ В ПЛАЗМООБРАЗУЮЩИХ СРЕДАХ
Authors: Вертянов Д.В. , Сидоренко В.Н. , Беляков И.А. , Тимошенков С.П.
Published: February 2021

Статья посвящена исследованию влияния режимов проведения ионно-инициированных процессов сухого травления полиимидной микроструктуры в различных плазмообразующих средах на формирование глухих отверстий в коммутационных подложках микросборок со встроенными кристаллами. Представлены обзор и результаты выбора способа формирования межслойных отверстий в диэлектрике слоев перераспределения, а также результаты исследований поверхности полиимидных структур, полученных из полиамидокислот, после воздействия в кислородсодержащей плазме, в элегазе и в кислородно-аргоновых смесях.
ВОЗНИКНОВЕНИЕ ПРОВОДИМОСТИ В ГАЗОВОЙ СРЕДЕ ПРИ СГОРАНИИ НАНОРМАЗМЕРНЫХ ЭНЕРГЕТИЧЕСКИХ МАТЕРИАЛОВ СИСТЕМЫ AL/CUO
Authors: Переверзева С.Ю. , Шаман Ю.П. , Лебедев Е.А. , Сыса А.В. , Рязанов Р.М. , Гаврилов С.А. , Громов Д.Г.
Published: February 2021

Исследован эффект возникновения проводимости в газовой среде при сгорании нанормазмерных энергетических материалов на основе металлсодержащих компонентов. Показана зависимость изменения силы тока, возникающего в цепи, от расстояния между разомкнутыми обкладками (10-70 мм) при сгорании термитного материала.
РАЗРАБОТКА МИКРОМЕХАНИЧЕСКОГО АКСЕЛЕРОМЕТРА
Authors: Тимошенков А.С. , Анчутин С.А. , Кочурина Е.С. , Заранкин Н.М. , Калугин В.В. , Плеханов В.Е. , Полушкин В.М.
Published: February 2021

В статье приведено описание разработанной конструкции чувствительного элемента микромеханического акселерометра, результаты расчетов: модального анализа, анализа при статическом воздействии ускорения, расчетные изменения основных параметров акселерометр при изменении температуры. Представлены результаты исследований зависимости величины бокового подтрава кремния от точности углового совмещения маски с кристаллографической осью пластины.
ТЕПЛОВОЙ МЭМС-ДАТЧИК ДЛЯ ИЗМЕРЕНИЯ СУБАТМОСФЕРНОГО ДИАПАЗОНА ДАВЛЕНИЙ
Authors: Денисов В.Е. , Орешкин Г.И. , Поздняков М.М. , Евсиков И.Д. , Махиборода М.А.
Published: February 2021

Предложена оригинальная концепция датчика давления на основе микромеханической деформации тонкопленочной мембраны вблизи системы высокочувствительных термопар. Показано, что оптимальная конструкция датчика обеспечивает чувствительность до 4,4 мК/Па в широком диапазоне давлений (от 0,01 Па до 100 кПа).
muerte del rey en el antiguo reino de Guatemala (1666-1793)
Authors: Sánchez Mora Alexander
Published: February 2021

El artículo estudia las estrategias retóricas de las relaciones de exequias fúnebres de los monarcas españoles en el antiguo reino de Guatemala. A partir de ello se pretende mostrar las peculiaridades de esta práctica luctuosa en esta región periférica del mundo hispánico.
Sobredosis por bloqueadores de calcio en una mujer
Authors: Veras Victoria Andy , Mejia de la Cruz Dolores Magdalena , Mateo de la Cruz Mirian Bethania , Roedan Oliver Francisco , Henriquez Perez Pura Maria
Published: February 2021

Los bloqueadores de los canales de calcio son un tipo de medicamento comúnmente utilizado para enfermedades como la hipertensión, la fibrilación auricular, la enfermedad de las arterias coronarias. La sobredosis con este medicamento puede causar efectos adversos fatales, como el colapso cardiovascular; por lo tanto, es importante identificar y tratar a estos pacientes lo antes posible. El tratamiento para la toxicidad del bloqueador de los canales de calcio está respaldado por evidencia de baja calidad en la literatura médica. Presentamos el caso de una paciente de 19 años que se intoxica con el bloqueador de los canales de calcio nifedipina. La paciente llegó a la sala de emergencias 20 horas después de la ingestión de 53 tabletas de nifedipina de 10 mg cada una, presentándose en el departamento de emergencias con hipotensión y síntomas de emesis repetida después de ingerir líquidos y alimentos sólidos. Posteriormente, la paciente sufrió un shock cardiogénico que condujo a la admisión a la UCI cardiovascular, que requirió intubación, noradrenalina y soporte dopaminérgico. Durante su estadía en la UCI Cardiovascular, la paciente presentó neumonía por aspiración; después del 7º día en la unidad, fue transferida a la sala clínica y después del 4º día en esa área se recuperó por completo y fue dada de alta después de ser evaluada por el departamento de psiquiatría. Aquí presentamos un caso de sobredosis de nifedipina tratado con éxito, el cual es un tema que se subestima y del cual no se posee suficiente evidencia en cuanto manejo adecuado de estos pacientes.
Conocimiento y percepciones que los adultos tienen del COVID-19, República Dominicana
Authors: Colomé-Hidalgo Manuel , Herrera Morban Demian A , Méndez Núñez Rayneida , Torres Feliz Zoila L. , Méndez Jorge Massiel , Japa Rodríguez Josvane , Sosa Carlos
Published: February 2021

Introducción: el COVID-19 es un evento de salud pública de importancia internacional. En marzo del 2020 República Dominicana declaró el primer caso, pasando a transmisión comunitaria semanas después.

Material y Métodos: una encuesta en línea fue administrada a 2351 adultos residentes en República Dominicana a través de redes sociales. El cuestionario incluyó datos sociodemográficos, percepción de riesgo, actitud, creencias y mitos. Los participantes completaron el cuestionario entre el 30 de marzo y el 6 de abril del 2020.

Resultados: la mayoría de los encuestados afirma lavar sus manos con mayor frecuencia (98 %), evitar asistir a lugares concurridos (96 %), aplicar las normas de etiqueta al toser o estornudar (94 %), utilizar mascarilla (87 %) y evitar tocarse los ojos, la nariz y la boca con las manos sin lavar (99 %).

Conclusión: se recomienda realizar campañas de información para promover las buenas prácticas y aclarar concepciones erróneas sobre COVID-19.
Análisis del sistema de vigilancia centinela de las Infecciones Respiratorias Agudas Graves, Hospital Infantil Dr. Robert Reid Cabral, República Dominicana, 2015-2019
Authors: Mancebo García Pablo , Romano Feliezer , Sánchez Janahira , Castillo Delia , María Lorennys , Valdez Elizabeth
Published: February 2021

Introducción: la vigilancia centinela de Infecciones Respiratorias Agudas Graves (IRAG) inició en República Dominicana en febrero del año 2008, en dos hospitales: el Hospital Infantil Dr. Robert Reid Cabral (HIRRC) en Santo Domingo y el Hospital José María Cabral y Báez, en Santiago. Este estudio tiene como objetivo general describir el comportamiento de las infecciones respiratorias agudas graves (IRAG) captadas en el Hospital Infantil Dr. Robert Reid Cabral durante los años 2015-2019.

Método: se realizó un estudio observacional, descriptivo, de corte transversal, con recolección retrospectiva de datos, de los casos de IRAG reportados en el puesto centinela del Hospital Infantil de Referencia Nacional Dr. Robert Reid Cabral, Área V de salud, Distrito Nacional, desde el año 2015 hasta el año 2019. Se hace una descripción de las características de los casos ingresados a la base de datos del sistema, los virus respiratorios identificados, comportamiento en el tiempo, persona y lugar.

Resultados: la captación de infecciones respiratorias agudas graves (IRAG) a través del puesto centinela las IRAG, representaron 14.37, 10.13, 4.10, 3.70 y 3.42 % de las IRA, respectivamente, en los últimos cinco años. En las semanas epidemiológicas, en el año 2015 hubo una mayor cantidad de casos entre las semanas 9-16 y 40-48, con un pico alto en la semana 47, en el año 2016 estuvo concentrado entre las semanas 24-42, en el año 2017, en las semanas 33-38, en el año 2018 se presentaron con mayor frecuencia entre las semanas 10-15 y con altas y bajas entre la semana 25-49, y ya para el año 2019 se reportaron casos de manera irregular con altas y baja durante la semana 6-41. La detección de la circulación del Virus Sincitial Respiratorio (VSR) se identificó puntualmente con mayor porcentaje en los años 2015, 2016, 2017 y el año 2019 en comparación con el año 2018 donde el agente predominante fue el virus de la influenza A H1N1. El mayor pico de mortalidad por IRAG estuvo presente en el año 2015 con 18 muertes.

Conclusión: la captación de infecciones respiratorias agudas graves (IRAG) a través del puesto centinela disminuyó en los años 2017 (501 casos), 2018 (465 casos) y 2019 (381 casos), debido, principalmente, a una modificación de la definición de casos establecida por la OPS/OMS y remitida por la Dirección General de Epidemiología, representando solo un 4.10, 3.70 y 3.42 %, respectivamente, de las IRA en esos últimos tres años de estudio; sin embargo, en los 2 primeros años de estudio, 2015 (1706 casos) y 2016 (1350 casos), cuando no se habían disminuido los criterios de definición de caso, las IRAG representaron 14.37 y 10.13 % de las IRA, respectivamente.
Atención psicosocial a adolescentes embarazadas, víctimas de violencia, en un hospital de Santo Domingo
Authors: De Wannemaeker Peter , Ruiz-Matuk Carlos B.
Published: February 2021

Objetivo: describir los resultados de un proyecto de mejora de la atención a adolescentes embarazadas víctimas de violencia, ejecutado en un hospital público.

Metodología: investigación-acción participativa en dos fases: un programa de acciones de mejora a través de la formación del personal hospitalario en estrategias de intervención, reuniones de análisis y seguimiento de casos identificados y coordinación con actores externos.

Resultados: se identificó dificultades para involucrar a la familia en la atención psicológica de sus adolescentes, ausencia de visitas domiciliarias y de protección judicial. Asimismo, debilidades en la organización intrahospitalaria y en la articulación interinstitucional. Se elaboró un protocolo de funcionamiento del equipo multidisciplinario, una estrategia de colaboración entre hospital y unidades de atención primaria con visitas domiciliarias, la vinculación con programas de protección social, una red local de protección y una articulación con la fiscalía.

Conclusiones: este estudio muestra que la violencia contra adolescentes embarazadas pocas veces es reconocida y su atención psicosocial es muy limitada. Las estrategias elaboradas mejoraron la calidad de atención. Se necesita un mayor compromiso formal de las autoridades. En diecinueve casos se identificó un patrón de abuso psicológico y sexual en una relación de pareja adolescente-adulto, tradicionalmente no reconocido, y aceptado por el beneficio económico que conlleva.
Valor pronóstico de los signos clínicos hipertermia hiperglucemia e hipertensión secundarios a eventos cerebrovasculares hemorrágicos. Hospital docente Padre Billini. enero-septiembre 2017
Authors: Montesano Jiménez Yordano , López González Franz Erich , Cabrera Pimentel Víctor , Corvil Alene
Published: February 2021

Objetivo: determinar el valor pronóstico de la hipertermia, hiperglucemia e hipertensión, secundario a ECV hemorrágico en los pacientes del Hospital Padre Billini, Santo Domingo, República Dominicana, en el periodo enero-septiembre 2017.

Método: se realizó un estudio descriptivo retrospectivo con una muestra de 50 pacientes. Los datos obtenidos fueron procesados con el sistema Epi-info 7.0.

Resultados: el estudio muestra que, de los 50 expedientes revisados, 56 % (23) fueron masculinos. La edad mediana fue de 62 años. Utilizando el rango de edad ≥ 60 años como valor pronóstico de óbito, se obtuvo un 66.67 % (14) fallecidos frente a 62.07 % (18) pacientes vivos, (p=0.7382). Un 50 % (8) de los pacientes con valores glucémicos ≥ 180 mg/dl terminaron en defunción intrahospitalarios (p=0.0246) a diferencia de las demás variables, hipertensión e hiperglucemia, que no demostraron relación estadística significativa.

Conclusión: el estudio demuestra una posible relación pronóstico negativa de los valores glucémicos elevados al momento de ingreso con relación a óbito, así como la predilección demográfica metropolitana, edad avanzada y sexo masculino.