Background: The key considerations for healthy aging are diversity and inequity. Diversity means that there is no typical older person. Policy should be framed to improve the functional ability of all older people, whether they are robust, care dependent or in between. Objective: The aim of this article is to describe negative influence of Corona pandemic (COVID-19) for realization of the WHO project about Healthy Aging global strategy proposed in the targets "Health for all". Methods: Authors used descriptive model for this cross-sectional study based on facts in analyzed scientific literature deposited in on-line databases about healthy aging concept of the prevention and treatment of the people who will come or already came to the "third trimester of the life". Results and Discussion: Some 80-year-olds have levels of physical and mental capacity that compare favorably with 30-year-olds. Others of the same age may require extensive care and support for basic activities like dressing and eating. Policy should be framed to improve the functional ability of all older people, whether they are robust, care dependent or in between. Inequity reflects a large proportion (approximately 75%) of the diversity in capacity and circumstance observed in older age is the result of the cumulative impact of advantage and disadvantage across people’s lives. Importantly, the relationships we have with our environments are shaped by factors such as the family we were born into, our sex, ethnicity, level of education and financial resources. Conclusion: COVID-19 pandemic "celebrated" one year of existing in almost all countries in the world with very difficult consequences for whole population. But in the first risk group are old people who have in average 6 to 7 co-morbidities. WHO recommended some measures to improve prevention and treatment this category of population, but COVID-19 pandemic stopped full realization of Decade of Healthy Aging project.

Aim Neuroendocrine neoplasms (NENs) are a heterogeneous group of tumours with varying clinical expression and behaviour. Because of indolent behaviour of NENs, reviewing and evaluation of epidemiological characteristics is a challenge. The aim of this study was to assess prevalence of NENs at tertiary hospitals considering age, gender, location, and grade. Methods Electronic files were used for a retrospective assessment of the patients with NENs of the gastroenteropancreatic tract and bronchopulmonary system in tertiary hospitals in Bosnia and Herzegovina over the past 15 years (2005-2020). Results Among 438 patients, 291(66.4%) were males and 147 (33.6%) females; the median age was 62 years. The lungs were the most frequent site, 304 (69.4%), followed by the pancreas, 22 (5.0%), colon, 14 (3.2%), stomach, 13 (2.9%), appendix, 13 (2.9%), rectum,11 (2.5%), small intestine, eight (1.8%) and gallbladder, one (0.2%). Metastases were most frequently found in the liver, 35 (8%) and lymph nodes, 15 (3.42%). Conclusion The results were largely consistent with those in literature, including age, gender, location, and the degree of differentiation. Most metastases originated from high-grade tumours and greater impairment of the liver.

In beyond fifth-generation (B5G) era, massive multiple-input multiple-output (M-MIMO) will be a key technology to offer higher network capacities. Due to the different frequency of uplink and downlink channels in FDD systems, the channel state information (CSI) feedback from user terminal to the base station is necessary, but this reduces the spectrum efficiency. This letter proposes a deep learning based solution to predict the downlink CSI in frequency division duplex (FDD) systems, which is termed as complex-valued three dimensional convolutional neural network (CV-3DCNN). The proposed network uses a complex-valued neural network in complex domain to deal with the complex CSI matrices, and adopts three-dimensional convolution operations for feature extraction. The proposed scheme aims to make full use of the hidden information of the complex matrices of the CSI data, and to minimize information loss caused by data processing. The experimental results demonstrate that the proposed architecture can improve accuracy of the downlink CSI prediction by approximately 6 dB.

Energy efficiency (EE) is an important performance metric in communication systems. However, to the best of our knowledge, the energy-efficient resource allocation (RA) problem in non-orthogonal multiple access enabled backscatter communication networks (NOMA-BackComNet) comprehensively considering the user’s quality of service (QoS) has not been investigated. In this letter, we present the first attempt to solve the EE-based RA problem for NOMA-BackComNet with QoS guarantee. The objective is to maximize the EE of users subject to the QoS requirements of users, the decoding order of successive interference cancellation and the reflection coefficient (RC) constraint, where the transmit power of the base station and the RC of the backscatter device are jointly optimized. To solve this non-convex problem, we develop a novel iteration algorithm by using Dinkelbach’s method and the quadratic transformation approach. Simulation results verify the effectiveness of the proposed scheme in improving the EE by comparing it with the other schemes.

Aim To determine the effect of the load on the meniscus in relation to a different angle, and to present the impact of force on eventual injury of menisci. Methods Research included 200 males with average height of 178.5 cm, mass 83.5 kg, and average age of 22 years. The simulation of treadmill that was used in the evaluation of ischemic heart disease was made. Effects on the knee were evaluated by measuring at different inclinations (5°70', 6°80', 7°90', 9°10', 10°20', 11°30' and 12°40'). Results With increasing ascent of treadmill the load on the meniscus also increased. Each increase in ascent after 22% (which corresponded to the angle of 12°40' and seventh degree of load according to the Bruce protocol) at given anthropological values was an etiological factor for meniscus injury. Conclusion The seventh degree of load according to the Bruce protocol can lead to the meniscus injury.