scholarly journals Demographic challenges and spatial distribution of the population in the Republika Srpska

2014 ◽  
pp. 813-821
Author(s):  
Rajko Vranjes ◽  
Dara Petkovic
Keyword(s):  
Spatial Distribution ◽  
Rural Areas ◽  
Natural Increase ◽  
Economic Effects ◽  
Preliminary Results ◽  
Demographic Challenges ◽  
First Results ◽  
Demographic Processes ◽  
Republika Srpska ◽  
First Time

For the first time in 22 years, an official census of population was carried out on the territory of the Republika Srpska. This is the first time that we have data (preliminary results) based on which we can examine the demographic situation, spatial distribution of the population and certain ongoing demographic processes. Based on the analysis of preliminary results on the total number of enumerated persons and through the analysis of natural increase in migration flows, the article will present the demographic problem faced by the Republika Srpska. The analysis of first results shows that entire regions have low population densities, being affected by depopulation which is caused mainly by negative natural movements and migrations. Rural areas which represented a demographic potential are being depopulated and some of them have no inhabitants at all. The unfavourable spatial distribution, low level of natural regeneration and constant emigration seriously endanger the total number of population in the Republika Srpska, which has been steadily declining ever since 2002. Constant negative socio-economic effects in the short term could jeopardize the development of the population and the very maintenance of infrastructure in settlements in Republika Srpska.

scholarly journals Spatial and Temporal Shifts in the Demographic Development of China at the End of the 20th and the Beginning of the 21st Centuries

2021 ◽  
Vol 12 (2) ◽  
pp. 93-105
Author(s):  
Ekaterina ANTIPOVA ◽  
Chen LI
Keyword(s):  
National Level ◽  
Natural Increase ◽  
Practical Significance ◽  
Demographic Development ◽  
Geoinformation Technologies ◽  
Progressive Type ◽  
Spatial Differences ◽  
Demographic Processes ◽  
First Time ◽  
Demographic Policy

The article provides an economic and geographical analysis of the demographic processes in China, considering a set of natural and geographic factors, selected to reflect the influence of the state policy of family planning, as well as the policy for the development of separate regions in the period under study. The methodology included the use of geoinformation technologies, classification method and geographical systematization. Based on the identified spatial differences at the level of provinces, radical and previously absent spatial shifts in the demographic processes in China were established for the first time. They consist in the formation of positive and negative dynamics zones, as well as natural increase and natural decline zones. The demographic balance, for the first time calculated for the provinces of China, for 2010 and 2019, made it possible to indicate the dominance of provinces of a progressive type (53.0%) and a zone of provinces of a regressive type (8.8%). The established trend proves not only a differentiation, but also a spatial polarization at the national level and acts as a phenomenon of modern demographic development in China, in the 21st century. The results of the geographical systematization of the demographic space has practical significance as it provides the opportunity to use this methodology at the microgeographic level in other territories and serves as a scientific justification for the development of the directions of China’s regional demographic policy.

scholarly journals Main characteristics of demographic development of eastern Herzegovina in the second half of the 20th century and at the beginning of the 21st century

2014 ◽  
pp. 727-735
Author(s):  
Radoslav Corovic
Keyword(s):  
Spatial Distribution ◽  
Total Population ◽  
Census Data ◽  
Natural Increase ◽  
Population Ageing ◽  
Population Development ◽  
Demographic Development ◽  
Demographic Indicators ◽  
Demographic Processes ◽  
And Migration

At the beginning of the observed period, the population dynamics in Eastern Herzegovina was characterized by stagnation, followed by the decrease of the total population, primarily due to traditionally present emigration, but also due to negative natural population growth. Birth rates decreasing processes, population ageing, and some other predominantly negative demographic processes have been reported for decades. This area has a low population density, while spatial distribution of the population is characterized by concentration in settlements which have the function of a municipal centre. Contemporary demographic indicators (of natural increase of population and migration) indicate further decrease in population of this region, especially of its rural parts. This is also shown by the previous 2013 Census data. Keeping in mind the current demographic indicators and characteristics of the population, side by side with weak economic development of this region, it may be expected that negative trends in population development will continue.

Cases of social innovations implemented in the public health sector

2020 ◽  
Vol 16 (9) ◽  
pp. 1600-1621
Author(s):  
E.V. Molchanova
Keyword(s):  
Public Health ◽  
Systems Approach ◽  
Health Sector ◽  
Demographic Challenges ◽  
Disability Adjusted Life ◽  
The Social ◽  
Social Innovations ◽  
Demographic Processes ◽  
Disease Study ◽  
Disability Adjusted Life Year

Subject. The article discusses medical and demographic processes in Russia and Finland. Objectives. I evaluate cases of social innovations implemented for the preservation and strengthening of public health in Finland under the auspices of The Global Burden of Disease Study. Methods. Methodologically, the study relies upon the ideology of the GDB Project, which rests on the DALY (the Disability Adjusted Life Year). Results. I analyzed the morbidity and mortality rates, DALY in Russia and Finland, determined what mainly triggers the risk (environmental, behavioral, metabolic) fueling some public health degradation. The article provides the insight into the efficiency of some social innovations implemented in Finland and suggests what should be done to outline medical and demographic programs in Russia. Conclusions and Relevance. The medical and demographic situation in Russia requires new tools to find innovative solutions for the social policy and, inter alia, the use of the GBD technique, which proved to be effective. Referring to evidence from Finland, demographic challenges in Russian can be handled through a systems approach, i.e. socio-economic actions, improvement of the healthcare and social security, wellness propaganda.

Spider diversity in the Bukit Timah Nature Reserve, Singapore

2019 ◽  
Vol 71 ((suppl.1)) ◽  
pp. 209-243
Author(s):  
J.K.H. Koh ◽  
D.J. Court
Keyword(s):  
Nature Reserve ◽  
New Records ◽  
Secondary Forest ◽  
Distinct Species ◽  
Primary Forest ◽  
Preliminary Results ◽  
Vegetation Zones ◽  
Comprehensive Survey ◽  
Quantitative Analyses ◽  
First Time

This paper discusses the preliminary results of the first comprehensive survey of the spiders of the Bukit Timah Nature Reserve (BTNR) in Singapore. Two plots were established in each of the three zones of vegetation, viz., primary forest, old secondary forest, and maturing secondary forest. They were repeatedly sampled over an 18-month period. Sorting of the collection so far suggests that the three vegetation zones harbour rather different spider assemblages. Only ~9% of the total spider fauna recovered was shared by all three zones. The results have also yielded a preliminary picture of dominance, abundance and rarity. Although first intended to obtain a baseline for future quantitative analyses, the survey became a testing ground to modify and refine methodology so as to conduct future quantitative surveys with greater scientific rigour. Taxonomic work on the samples so far shows that the spiders in the BTNR span over 43 families, of which six families are listed for the first time in Singapore. The tally is summarised in an interim checklist of BTNR spiders. The checklist, with a total of 317 entries, shows that there are 158 described species of spiders in BTNR, of which 25 species are new records for Singapore. Another 159 morphospecies are provisionally recognised as distinct species, some of which may be new to science. Our observations during the survey have allowed us to provide a narrative of BTNR spider diversity against a backdrop of their microhabitat specialisation.

scholarly journals Advances on the Implementation of Circular Economy Techniques in Rural Areas in Colombia under a Sustainable Development Framework

2021 ◽  
Vol 13 (7) ◽  
pp. 3816
Author(s):  
Javier Rodrigo-Ilarri ◽  
Camilo-A. Vargas-Terranova ◽  
María-Elena Rodrigo-Clavero ◽  
Paula-A. Bustos-Castro
Keyword(s):  
Sustainable Development ◽  
Waste Management ◽  
Circular Economy ◽  
Rural Areas ◽  
Development Framework ◽  
Starting Point ◽  
Management Plans ◽  
Good Starting Point ◽  
Depressed Regions ◽  
First Time

For the first time in the scientific literature, this research shows an analysis of the implementation of circular economy techniques under sustainable development framework in six municipalities with a depressed economy in Colombia. The analysis is based on solid waste data production at a local scale, the valuation of the waste for subsequent recycling, and the identification and quantification of the variables associated with the treatment and final disposal of waste, in accordance with the Colombian regulatory framework. Waste generation data are obtained considering three different scenarios, in which a comparison between the simulated values and those established in the management plans are compared. Important differences have been identified between the waste management programs of each municipality, specifically regarding the components of waste collection, transportation and disposal, participation of environmental reclaimers, and potential use of materials. These differences are fundamentally associated with the different administrative processes considered for each individual municipality. This research is a good starting point for the development of waste management models based on circular economy techniques, through the subsequent implementation of an office tool in depressed regions such as those studied.

scholarly journals Development of ecosystem health index in rural areas of Java Island: Preliminary results

2021 ◽  
Vol 622 ◽  
pp. 012020
Author(s):  
A S Yuwono ◽  
Y Wardiatno ◽  
R Widyastuti ◽  
D Wulandari ◽  
M Natali
Keyword(s):  
Rural Areas ◽  
Ecosystem Health ◽  
Health Index ◽  
Preliminary Results

scholarly journals Evaluation of Community Resilience in Rural China—Taking Licheng Subdistrict, Guangzhou as an Example

2021 ◽  
Vol 18 (11) ◽  
pp. 5827
Author(s):  
Jianhong Fan ◽  
You Mo ◽  
Yunnan Cai ◽  
Yabo Zhao ◽  
Dongchen Su
Keyword(s):  
Spatial Distribution ◽  
Rural Communities ◽  
Rural Areas ◽  
Urban Areas ◽  
Rural China ◽  
Social Resilience ◽  
Learning Abilities ◽  
The Sustainable Development ◽  
Guangzhou City ◽  
Local Sustainability

Resilience of rural communities is becoming increasingly important to contemporary society. In this study we used a quantitative method to measure the resilience regulating ability of rural communities close to urban areas—in Licheng Subdistrict, Guangzhou City, China. The main results are as follows: (1) Rural systems close to urban areas display superior adapting and learning abilities and have a stronger overall resilience strength, the spatial distribution of which is characterized by dispersion in whole and aggregation in part; (2) the resilience of most rural economic subsystems can reach moderate or higher levels with apparent spatial agglomeration, whilst the ecological subsystem resilience and social resilience are generally weaker; the spatial distribution of the former shows a greater regional difference while the latter is in a layered layout; (3) some strategies such as rebuilding a stable ecological pattern, making use of urban resources and cultivating rural subjectivity are proposed on this basis, in order to promote the sustainable development of rural areas and realize rural revitalization. This work also gives suggestion for the creation of appropriate and effective resilience standards specifically targeted for rural community-aiming to achieve the delivery of local sustainability goals.

scholarly journals AGN Spectra as Seen by the Infrared Space Observatory: First Results

1997 ◽  
Vol 159 ◽  
pp. 333-336
Author(s):  
D. Lutz ◽  
R. Genzel ◽  
E. Sturm ◽  
A.F.M. Moorwood ◽  
E. Oliva ◽  
...  
Keyword(s):  
Fine Structure ◽  
Short Wavelength ◽  
Molecular Hydrogen ◽  
Molecular Gas ◽  
Space Observatory ◽  
Infrared Space Observatory ◽  
First Results ◽  
External Galaxies ◽  
First Time ◽  
Fine Structure Lines

AbstractWe discuss 2.5–45 µm spectra of the Circinus galaxy and of Cen A, obtained with the Short Wavelength Spectrometer (SWS) on board the Infrared Space Observatory. The large number of detected ionic fine structure lines, observable also in visually obscured sources, provides strong constraints on the shape of the ionizing spectrum, which is found to exhibit a UV bump peaking at ~ 70 eV in the case of Circinus. Pure rotational emission of molecular hydrogen, directly probing warm molecular gas, can for the first time be detected in external galaxies.

scholarly journals Enteroparasitosis in patients attended by the health public service: epidemiology and spatial distribution

2020 ◽  
Vol 30 (1) ◽  
pp. 34764
Author(s):  
Andressa Barros Ibiapina ◽  
Janaína Soares Leal ◽  
Pedro Ricardo Alves de Santana ◽  
Marcelo Ribeiro Mesquita ◽  
Tito Lívio da Cunha Lopes ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Entamoeba Histolytica ◽  
Ascaris Lumbricoides ◽  
Rural Areas ◽  
The Elderly ◽  
Common Species ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Intestinal Parasitosis ◽  
The City

AIMS: This research aims to determine the epidemiology and the spatial distribution of intestinal parasitosis in the city of Teresina.METHODS: A cross-sectional study was carried out based on the data of parasitological fecal exams performed in the Laboratory Raul Bacelar between January, 2014 and July, 2017. In addition to the prevalence of intestinal parasitosis and polyparasitism, we verified the association of these diseases with gender, zone and period of the year by means of the chi-squared test, whereas the relation with age was analyzed by the Mann-Kendall tests and multiple comparisons of age classes. The spatial distribution was performed using the QGIS georeferencing software.RESULTS: The prevalence of enteroparasitosis in Teresina is 17,8% with Ascaris lumbricoides being the most common species, due to the precarious sanitary conditions of the city. The prevalence of individuals with polyparasitism is 3,13%, in which an association between the species Entamoeba coli and Entamoeba histolytica/dispar was found. There was no relation between intestinal parasitosis with gender, but we verified that individuals in rural areas are more susceptible to these diseases. The species Ascaris lumbricoides and Entamoeba histolytica/dispar occur more frequently in the first and second semester, respectively. We observed that there is an apparent tendency to increase cases of E. histolytica/dispar and reduction of cases of Giardia sp. according to aging. Mapping intestinal parasitosis showed us that there is a prevalence between one and 20% in most of Teresina's neighborhoods, and Ascariasis embodies at least 40% of cases of enteroparasitosis in these neighborhoods.CONCLUSIONS: Investments in basic sanitation and new epidemiological investigations must be carried out to control intestinal parasitosis in Teresina, emphasizing that children and the elderly should be considered priority groups in these programs.

scholarly journals Host density predicts the probability of parasitism by avian brood parasites

2019 ◽  
Vol 374 (1769) ◽  
pp. 20180204 ◽  
Author(s):  
Iliana Medina ◽  
Naomi E. Langmore
Keyword(s):  
Spatial Distribution ◽  
Reproductive Success ◽  
Host Species ◽  
Field Data ◽  
Host Density ◽  
Brood Parasites ◽  
Parasitism Rates ◽  
Analyse Data ◽  
First Time ◽  
Determining Factor

The spatial distribution of hosts can be a determining factor in the reproductive success of parasites. Highly aggregated hosts may offer more opportunities for reproduction but can have better defences than isolated hosts. Here we connect macro- and micro-evolutionary processes to understand the link between host density and parasitism, using avian brood parasites as a model system. We analyse data across more than 200 host species using phylogenetic comparative analyses and quantify parasitism rate and host reproductive success in relation to spatial distribution using field data collected on one host species over 6 years. Our comparative analysis reveals that hosts occurring at intermediate densities are more likely to be parasitized than colonial or widely dispersed hosts. Correspondingly, our intraspecific field data show that individuals living at moderate densities experience higher parasitism rates than individuals at either low or high densities. Moreover, we show for the first time that the effect of host density on host reproductive success varies according to the intensity of parasitism; hosts have greater reproductive success when living at high densities if parasitism rates are high, but fare better at low densities when parasitism rates are low. We provide the first evidence of the trade-off between host density and parasitism at both macro- and micro-evolutionary scales in brood parasites. This article is part of the theme issue ‘The coevolutionary biology of brood parasitism: from mechanism to pattern’.

Sign in / Sign up

Export Citation Format

Share Document