POTENTIAL HUMAN POPULATION REDISTRIBUTION IN RUSSIA IN A WARMER 21st CENTURY AS PREDICTED BY A BIOCLIMATIC POPULATION MODEL

Author(s):  
Elena Parfenova ◽  
Nadezhda Tchebakova
2020 ◽  
Vol 10 (1) ◽  
pp. 70-81
Author(s):  
Sabira Gadžo-Šašić ◽  
◽  
Ivana Ristić ◽  

The main characteristic of the 21st century is the increase in the number of third-age persons in the total human population of the world. Therefore, it is an imperative to create new modes and to improve existing modes of assistance and support to this group of people. This paper specifically seeks to draw attention to possible directions for the development of care services for the elderly. The tasks of the professionals (social workers and occupational therapists), working in institutions for the permanent placement/accommodation and care of the elderly, were also analyzed. In addition to the above-mentioned, the status of the elderly population in Bosnia and Herzegovina and Serbia hasbeen reviewed.


2017 ◽  
Vol 11 ◽  
pp. 925-932
Author(s):  
John Faber Arredondo Montoya ◽  
Carlos Alberto Abello Munoz ◽  
Eliecer Aldana Bermudez

Author(s):  
Amin Daei Sorkhabi ◽  
Aila Sarkesh ◽  
Alireza Daei Sorkhabi ◽  
Taher Entezari-Maleki ◽  
Jalil Rashedi ◽  
...  

Abstract The recent pandemic, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of Coronavirus Disease 2019 (COVID-19) has introduced itself into the human population in the 21st century after the coronavirus diseases SARS-CoV and Middle East respiratory syndrome (MERS-CoV). Major investigations are underway worldwide in the search for pharmaceutical interventions for COVID-19 and many agents are administered in off-label routes. Several cases are under study to check or restrict clinical manifestations of COVID-19. According to the fact that the efficacy of some micro-nutrients like vitamins is proven to treat or prevent infectious diseases because of their antimicrobial and immunomodulatory activity, the potential role of vitamins in the COVID-19 treatment or prevention must be considered.


2018 ◽  
Vol 13 (3) ◽  
pp. 27 ◽  
Author(s):  
A. Zincenko ◽  
S. Petrovskii ◽  
V. Volpert

Human population growth has been called the biggest issue the humanity faces in the 21st century, and although this statement is globally true, locally, many Western economies have been experiencing population decline. Europe is in fact homeland for population decline. By 2050 many large European economies are predicted to lose large parts of their population. In this work, we consider the dynamical system that corresponds to the model introduced by Volpert et al. [Nonlinear Anal. 159 (2017) 408–423]. With the help of this model, we illustrate scenarios that can lead, in the long-run, to sharp population decline and/or deterioration of the economy. We also illustrate that even when under certain conditions the population will go extinct, temporarily it might experience growth.


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