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Author(s):  
Т.П. Сабгайда ◽  
А.Н. Эделева

Проанализирована смертность лиц старше трудоспособного возраста (женщины 55+ и мужчины 60+) в условиях пандемии COVID-19 для определения потенциальной возможности её предотвращения. Использовали информацию базы данных РФС-ЕМИАС Москвы за 2019, 2020 и 2021 гг. (за периоды до 15 июня). Сделано заключение, что на фоне более корректного учета причин смерти в 2021 г., связанных с инфицированием вирусом SARS-CoV-2, вклад психических расстройств и болезней эндокринной системы в структуру причин смерти лиц старше трудоспособного возраста без учета случаев смерти от COVID-19 превышает показатели 2019 г. Рост смертности от заболеваний этих классов в значительной степени является следствием экзогенного стресса, связанного с пандемией, изоляцией лиц 65 лет и старше в начале пандемии, снижением эффективности их медико-социальной поддержки. Недостатки в организации социальной помощи лицам старших возрастных групп, слабое внедрение новых информационных технологий и носимых электронных устройств в практическую работу здравоохранения, малые масштабы общественных инициатив в области социальной помощи привели к потерям населения, которые могли бы быть предотвращены в период пандемии. The mortality of people over working age (women 55+ and men 60+) was analyzed in the context of COVID-19 pandemic in order to determine the potential for its prevention. The information from the Moscow mortality database for 2019, 2020 and 2021 (up to June 15) was used. Against the background of more correct accounting of death causes associated with SARS-CoV-2 virus infection in 2021, the contributions of mental disorders and endocrine diseases to the structure of death causes (excluding deaths from COVID-19) for people over working age are more than in 2019. The increase in mortality from diseases of these classes is largely a consequence of exogenous stress associated with a pandemic, isolation of people older 64 years and a decrease in the effectiveness of medical care. It was concluded that indirect losses from COVID-19 include avoidable mortality of elderly caused by shortcomings in organization of social assistance for them, the weak introduction of new information technologies and wearable electronic devices into the practical work of health care, small scale of public initiatives in the field of social assistance.


Author(s):  
Shaoji Wu ◽  
Li Tang ◽  
Yue Xu ◽  
Guangcong Tang ◽  
Bailin Dai ◽  
...  

At present, hydrogel flexible sensors have attracted wide attention in the field of wearable electronic devices. However, hydrogel flexible sensors need external solid state power supply to output stable signals....


Nanomaterials ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 95
Author(s):  
Elena Ruxandra Radu ◽  
Denis Mihaela Panaitescu ◽  
Laura Andrei ◽  
Florin Ciuprina ◽  
Cristian Andi Nicolae ◽  
...  

Polymer nanodielectrics characterized by good flexibility, processability, low dielectric loss and high dielectric permittivity are materials of interest for wearable electronic devices and intelligent textiles, and are highly in demand in robotics. In this study, an easily scalable and environmentally friendly method was applied to obtain polysiloxane/nanosilica nanocomposites with a large content of nanofiller, of up to 30% by weight. Nanosilica was dispersed both as individual particles and as agglomerates; in nanocomposites with a lower amount of filler, the former prevailed, and at over 20 wt% nanosilica the agglomerates predominated. An improvement of both the tensile strength and modulus was observed for nanocomposites with 5–15 wt% nanosilica, and a strong increase of the storage modulus was observed with the increase of nanofiller concentration. Furthermore, an increase of the storage modulus of up to seven times was observed in the nanocomposites with 30 wt% nanosilica. The tensile modulus was well fitted by models that consider the aggregation of nanoparticles and the role of the interface. The dielectric spectra showed an increase of the real part of the complex relative permittivity with 33% for 30 wt% nanosilica in nanocomposites at a frequency of 1 KHz, whereas the loss tangent values were lower than 0.02 for all tested nanodielectrics in the radio frequency range between 1 KHz and 1 MHz. The polysiloxane–nanosilica nanocomposites developed in this work showed good flexibility; however, they also showed increased stiffness along with a stronger dielectric response than the unfilled polysiloxane, which recommends them as dielectric substrates for wearable electronic devices.


Author(s):  
K. A. Rutskaya ◽  
A. N. Butorin

The article presents the experience of organizing the use of wearable electronic devices (fitness trackers) by schoolchildren to solve the problem of low physical activity. The existing methods of motivating schoolchildren to increase the level of physical activity do not give the desired result. Physical education classes in school cannot compensate for the movement deficit. During extracurricular hours, most schoolchildren also cannot organize their physical activity independently and choose sedentary types of leisure. One way to tackle the problem is to encourage the use of fitness trackers. The use of fitness trackers allows the teacher to monitor the level of physical activity of schoolchildren, analyze the achievements jointly, and help organize the physical activity of schoolchildren outside the classroom. To solve the problem, the authors of the article have developed two experimental programs of supplementary education for schoolchildren with the use of fitness trackers. The first program involves the regular, supervised use of fitness trackers in animation training. The second program includes training assignments for assembling and testing fitness trackers in the course of programming training. The second program showed higher efficiency. For the statistical assessment of the results of the educational programs implementation, the Wilcoxon T-test was used. The implementation of educational programs led to increase of the level of physical activity of students by 7–15 %. The authors give recommendations on the use of fitness trackers in the supplementary education system.


2021 ◽  
Author(s):  
Zhongjie Zheng ◽  
Li Yang ◽  
Yunpeng Yang ◽  
Baofeng Lin ◽  
Lihua Fu ◽  
...  

Abstract Flexible wearable electronic sensors have attracted immense interest in human motion detection, body temperature monitoring and personal healthcare monitoring. However, most of reported sensors cannot integrate multifunctional applications at the same time though they own excellent single achievement of strain sensing or humidity sensing. Herein, we fabricate a multifunctional rubber-based flexible sensor (MRFS) with responses to infrared, temperature, humidity and strain. The sensor owns a superior strength (5.66 MPa), high stretchability (367%), high temperature coefficient of resistance (2.046%/℃) and high photothermal conversion efficiency (78.6%). For the sensing applications, it shows a rapid sensing of only 0.5 s for the temperature and humidity changes as well as a sensitive response to low-powered near infrared of 0.14 W/cm2, body temperature change from 33.6 to 35.6 ℃, and small amount of moisture on human skin. Moreover, the MRFS shows a considerable strain sensing for human joint motion and an antibacterial property.


2021 ◽  
Vol 2138 (1) ◽  
pp. 012006
Author(s):  
Yangkun Song ◽  
Chaofan Huang

Abstract With the rapid development of the Internet of Things and wearable electronic devices, China is about to enter the 5G era. The current materials have been difficult to meet the production needs of flexible antennas working in the 5G frequency band. Flexible antenna sensors have received widespread attention because they can detect signal changes caused by antenna deformation. In recent years, miniaturization and high sensitivity have been the development trend of flexible antennas. However, traditional metal materials have disadvantages such as high density, easy corrosion, and poor bending stability, Can no longer meet the further development of 5G frequency band flexible antennas. Therefore, it is necessary to find a light and flexible material to replace the traditional metal material. Graphene has excellent flexibility, conductivity, and stability, once discovered, it has aroused widespread concern among scientists. This article mainly conducts certain research on graphene material, hoping to contribute to the development of 5G in China.


Author(s):  
Naveen Bokka ◽  
Venkatarao Selamneni ◽  
Vivek Adepu ◽  
Sandeep Jajjara ◽  
Parikshit Sahatiya

Abstract Electronic devices that are biodegradable, water-soluble and flexible and are fabricated using biodegradable materials are of great importance due to their potential application in biomedical implants, personal healthcare etc. Moreover, despite the swift growth of Semiconductor technologies and considering a device's shell life of two years, the subject of electronic waste (E-waste) disposal has become a major issue. Transient electronics is a rapidly expanding field that solves the issue of E-waste by destroying the device after usage. The device disintegration can be caused by a multitude of triggering events, an example is that the device totally dissolves and/or disintegrates when submerged in water. This technology enables us to utilise electronic devices for a set amount of time before quickly destroying them, lowering E-waste significantly. This review will highlight the recent advancement in water-soluble flexible electronic devices with more focus on functional materials (water insoluble), fabrication strategies and transiency understanding with special importance on areas where these devices exhibit potential application in flexible and wearable electronic devices which includes FETs, photodetectors, memristors and sensors for personal healthcare monitoring.


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