scholarly journals An Overview of Population Growth Trends of Nepal

2015 ◽  
Vol 19 (1) ◽  
pp. 57-61 ◽  
Author(s):  
Laxman Kumar Regmi
Keyword(s):  
Population Growth ◽  
Growth Model ◽  
Growth Rates ◽  
Exponential Growth ◽  
Rural Areas ◽  
Population Change ◽  
Population Policy ◽  
Growth Models ◽  
Growth Trends ◽  
Time Period

This paper aims to estimate population growth rates of Nepal and also to estimate required time period for doubling population. For this, arithmetic, geometric and exponential growth models are applied. The data are taken from the recent national censuses of Nepal. Population growth trends were 2.10% in 1971, 2.60% in 1981, 2.10% in 1991, 2.25% in 2001 and 1.35% annually in 2011. The trends of urban populations were about 4% in 1971, 6% in 1981, 9% in 1991, 14% in 2001 and 17% in 2011. The population density rose from 79 in 1971 to 181 in 2011. Urban growth rate was 7% whereas it was 2% for rural areas. The population change was found to be 40% in urban whereas 11% in rural areas during 2001-2011. However, overall change was found to be 14% during 2001-2011. The estimated growth rates were found to be 1.44%, 1.35% and 1.35% by using arithmetic, geometric and exponential respectively. The estimated time period for doubling populations was found to be 67 year by arithmetic growth model and 50 years by geometric and exponential growth model. The findings of this paper may help policy-makers and planners for designing population policy of Nepal.Journal of Institute of Science and Technology, 2014, 19(1): 52-61

Recent Migration Patterns in the Developed World: A Clarification of Some Differences between our and NASA's Findings

1981 ◽  
Vol 13 (2) ◽  
pp. 243-250 ◽  
Author(s):  
D Vining ◽  
R Pallone ◽  
D Plane
Keyword(s):  
Population Growth ◽  
Internal Migration ◽  
Growth Rates ◽  
Rural Areas ◽  
Population Change ◽  
Metropolitan Areas ◽  
The United States ◽  
Migration Patterns ◽  
Regional Population ◽  
Developed World

This paper is a reply to two recently published critiques of our finding of a discontinuity in the recent internal migration patterns of Europe, Japan, and North America. Using data from the HAS A Human Settlements Systems Task, Hall–Hay and Gordon both fail to detect any significant narrowing in the differential between the growth rates of metropolitan areas and the growth rates of rural areas in Europe and Japan over the period 1950–1970 (they concede that this difference has disappeared, and has even been reversed in the United States). Our rejoinder here consists simply of a clarification of our own independent research on regional population change in these same countries. Unlike the IIASA project, this research has been confined, in the case of Europe and Japan, to a study of the trends in net internal migration to their politically and economically dominant core regions, for which data are available for the post-1970 period as well. Most of the disagreement over the presence or absence of a discontinuity in the regional population trends in the countries of western Europe and Japan can be explained by this simple difference in the principal orientations of the two studies, the first towards all metropolitan areas in these countries for the period 1950–1970, and emphasizing the total population growth of these areas, the other towards their densest, richest, and generally most important regions for the longer period 1950–1980, and emphasizing net internal migration to these regions rather than their overall population growth. For there is little doubt, as we demonstrate here, that there has been an abrupt and precipitous reduction in net internal migration towards the core regions of many countries in the developed world in the 1970s, though a comparable reduction may not have taken place to all metropolitan areas in the aggregate. Gordon's and Hall–Hay's claim to have rebutted our thesis is thus seen to be based on a misconception of the subject of our study.

scholarly journals La población rural en España: un enfoque a escala municipal

2011 ◽  
Vol 10 (1) ◽  
pp. 35 ◽  
Author(s):  
Ignacio Atance ◽  
María Teresa Martínez Jávega ◽  
Rogelio Pujol ◽  
Julio Urruela
Keyword(s):  
Population Growth ◽  
Growth Rates ◽  
Rural Areas ◽  
Rural Population ◽  
Population Data ◽  
Demographic Variables ◽  
Rural Depopulation ◽  
Demographic Growth

Population in Spain has grown significantly during the last decade; however, population growth has not increased evenly across the country. High demographic growth rates in costal and urbaninfluenced rural areas can lead to errors when considering added rural population data. This research depicts Spanish rural population’s evolution using a municipal scale approach and analyzes classic demographic variables and their explanatory capacity on rural population’s evolution. Results show that rural depopulation is still increasing in wide areas of the country. Classical demographic variables have been tested significant although they are not deciding factors in explaining rural population’s evolution

scholarly journals Natural Geography and Patterns of Local Population Growth and Decline in Spain: 1960–2011

2019 ◽  
Vol 11 (18) ◽  
pp. 4979 ◽  
Author(s):  
Adelheid Holl
Keyword(s):  
Population Growth ◽  
Rural Areas ◽  
Urban Areas ◽  
Population Change ◽  
Local Population ◽  
Growth Patterns ◽  
Detailed Data ◽  
Precipitation Seasonality ◽  
Growth Variation

This paper analyzes the role of natural geography for explaining local population change patterns. Using spatially detailed data for Spain from 1960 to 2011, the estimation results indicated that natural geography variables relate to about half of the population growth variation of rural areas and more than a third of the population growth variation of urban areas during this period. Local differences in climate, topography, and soil and rock formation as well as distance to aquifers and the coast contribute to variations in local population growth patterns. Although, over time, local population change became less related to differences in natural geography, natural geography is still significantly related to nearly a third of the variation in local population change in rural areas and the contribution of temperature range and precipitation seasonality has even increased. For urban areas, weather continues to matter too, with growth being higher in warmer places.

scholarly journals Demographics and the Housing Market

2020 ◽  
Vol 20 (192) ◽  
Author(s):  
Yuko Hashimoto ◽  
Gee Hee Hong ◽  
Xiaoxiao Zhang
Keyword(s):  
Population Growth ◽  
Housing Market ◽  
Rural Areas ◽  
Demographic Transition ◽  
Urban Areas ◽  
Population Change ◽  
House Prices ◽  
Housing Prices ◽  
Regional Disparities ◽  
Policy Measures

How does a shrinking population affect the housing market? In this study, drawing on Japan’s experience, we find that there exists an asymmetric relationship between housing prices and population change. Due to the durability of housing structures, the decline in housing prices associated with population losses is estimated to be larger than the rise in prices associated with population increases. Given that population losses have been and are projected to be more acute in rural areas than urban areas in Japan, the on-going demographic transition in Japan could worsen regional disparities, as falling house prices in rural areas could intensify population outflows. Policy measures to promote more even population growth across regions, and avoid the over-supply of houses, are critical to stabilize house prices with a shrinking population.

Recent and Prospective Population Trends in Malaysia

1985 ◽  
Vol 16 (2) ◽  
pp. 262-280 ◽  
Author(s):  
Gavin W. Jones ◽  
P. C. Tan
Keyword(s):  
Economic Development ◽  
Human Resources ◽  
Population Growth ◽  
Regional Development ◽  
Growth Rates ◽  
Population Policy ◽  
Population Redistribution ◽  
The Third ◽  
Fourth Plan

For many years now, the Malaysian government's population policy has included both a growth component and a distribution component. The growth component, adopted in the Second Malaysia Plan (1971–75) and still in force, was the goal of reducing the rate of population growth from 3 per cent to 2 per cent by 1985. The distribution component, first enunciated in a coherent way in the Mid-Term Review of the Second Malaysia Plan, is a strategy for regional development with direct population redistribution consequences. The Third Malaysia Plan (1976–80) elaborated the population situation and goals in greater detail but their broad thrust remained essentially unchanged. The Fourth Plan (1981–85), while maintaining the target of lowered growth rates, emphasized the quality of human resources and was sanguine about the prospects for economic development far outstripping the rate of population growth. Indeed, earlier concern with unemployment had been replaced by worries about the emergence of labour shortages.

Special Characteristics of Population Policy in the Middle East and North Africa

1973 ◽  
Vol 3 (4) ◽  
pp. 779-790
Author(s):  
Melvyn C. Thorne ◽  
Joel Montague
Keyword(s):  
Family Planning ◽  
Population Growth ◽  
Growth Rates ◽  
Population Policy ◽  
Family Planning Services ◽  
Population Growth Rates ◽  
The Past ◽  
Population Policies ◽  
High Population Growth ◽  
National Family Planning

The 22 countries stretching from Morocco, at the northwestern tip of Africa, to Afghanistan, on the rim of Asia, present a spectrum of positions on population ranging from governmental policy to increase population growth rates, to no explicit policy, to explicit policy to reduce them. High population growth rates throughout the area have evoked various interpretations and responses from these largely Islamic nations, which have been grouped for presentation into five arbitrary categories. There are some family planning services available in practically all the states, although laws vary from frank interdiction of contraception to governmental national family planning programs. There has been remarkable movement toward articulated national population policies in the past decade. This is likely to increase in the future despite problems due to intranational heterogeneity, the Arab-Israeli hostility, certain values of Islamic culture and theology, and the present paucity of demographic and developmental data.

Streamflow and Population Change in the Lower Salt River Valley of Central Arizona, ca. A.D. 775 to 1450

2008 ◽  
Vol 73 (1) ◽  
pp. 136-165 ◽  
Author(s):  
Scott E. Ingram
Keyword(s):  
Population Growth ◽  
Growth Rates ◽  
Population Change ◽  
River Valley ◽  
Channel Changes ◽  
Population Growth Rates ◽  
Salt River ◽  
Floods And Droughts ◽  
Salt River Valley ◽  
Irrigation Agriculture

Floods and droughts and their effects on Hohokam canal systems and irrigation agriculture play a prominent role in many cultural-historical interpretations of the Hohokam trajectory in the lower Salt River valley (modern-day Phoenix, Arizona metropolitan area). Catastrophic floods and associated geomorphic stream channel changes may have contributed to settlement and population changes and the substantial depopulation of the lower Salt River valley ca. A.D. 1450 or later. In this study, archaeological data on Hohokam domestic architecture is used to infer changes in prehistoric population growth rates from ca. A.D. 775 through 1450 in the most thoroughly documented canal system in the Salt River valley. Changes in growth rates are compared to the retrodictions of annual streamflow discharge volumes derived from tree-ring records. Contrary to expectations, population growth rates increased as the frequency, magnitude, and duration of inferred flooding, drought, and variability increased. These results challenge existing assumptions regarding the relationship among floods and droughts, conditions for irrigation agriculture, and population change in the lower Salt River valley.

scholarly journals Population growth rates: issues and an application

2002 ◽  
Vol 357 (1425) ◽  
pp. 1307-1319 ◽  
Author(s):  
H. Charles J. Godfray ◽  
Mark Rees
Keyword(s):  
Growth Rate ◽  
Population Dynamics ◽  
Population Growth ◽  
Growth Rates ◽  
Population Growth Rate ◽  
Population Change ◽  
Evolutionarily Stable Strategy ◽  
Model Systems ◽  
Population Growth Rates

Current issues in population dynamics are discussed in the context of The Royal Society Discussion Meeting 'Population growth rate: determining factors and role in population regulation'. In particular, different views on the centrality of population growth rates to the study of population dynamics and the role of experiments and theory are explored. Major themes emerging include the role of modern statistical techniques in bringing together experimental and theoretical studies, the importance of long-term experimentation and the need for ecology to have model systems, and the value of population growth rate as a means of understanding and predicting population change. The last point is illustrated by the application of a recently introduced technique, integral projection modelling, to study the population growth rate of a monocarpic perennial plant, its elasticities to different life-history components and the evolution of an evolutionarily stable strategy size at flowering.

scholarly journals Population Change and Income Inequality in Rural America

2020 ◽  
Author(s):  
Jaclyn L.W. Butler ◽  
Grace Wildermuth ◽  
Brian C. Thiede ◽  
David L. Brown
Keyword(s):  
Income Inequality ◽  
Population Growth ◽  
Rural Areas ◽  
Fixed Effects ◽  
Population Change ◽  
Population Decline ◽  
The United States ◽  
County Level ◽  
Level Data ◽  
The Relationship

This paper examines the effects of population growth and decline on county-level income inequality in the United States from 1980 to 2016. Findings from previous research have shown that income inequality is positively associated with population change, but these studies have not explicitly tested for differences between the impacts of population growth and decline. Understanding the implications of population dynamics is particularly important given that many rural areas are characterized by population decline. We analyze county-level data (n=15,375 county-decades) from the Decennial Census and American Community Survey (ACS), applying fixed effects models to estimate the respective effects of population growth and decline on income inequality, to identify the processes that mediate the links between population change and inequality, and to assess whether these effects are moderated by county-level economic and demographic characteristics. We find evidence that population decline is associated with increased levels of income inequality relative to counties experiencing stable and high rates of population growth. This relationship remains robust across a variety of model specifications, including models that account for changes in counties’ employment, sociodemographic, and ethnoracial composition. We also find that the relationship between income inequality and population change varies by metropolitan status, baseline level of inequality, and region.

scholarly journals Growth modelling of non-functioning pituitary adenomas in patients referred for surgery

2008 ◽  
Vol 158 (3) ◽  
pp. 287-294 ◽  
Author(s):  
Juergen Honegger ◽  
Sanna Zimmermann ◽  
Tsambika Psaras ◽  
Manfred Petrick ◽  
Michel Mittelbronn ◽  
...  
Keyword(s):  
Growth Model ◽  
Growth Kinetics ◽  
Exponential Growth ◽  
Pituitary Adenomas ◽  
Growth Models ◽  
Growth Dynamics ◽  
Magnetic Resonance Images ◽  
Recurrence Rates ◽  
Observation Period ◽  
Non Functioning Pituitary Adenomas

ObjectiveRecent observational studies have established progression and recurrence rates of pituitary adenomas. However, it is still unknown how individual pituitary adenomas grow over years and whether growth kinetics follow a distinct growth model. The objective of this study was to define a growth model for non-functioning pituitary adenomas.MethodsFifteen patients who had five or more serial high-quality examinations with magnetic resonance images or computerized tomography scans were identified among 216 patients with non-functioning pituitary adenomas. Tumour volumes were assessed using a stereological method based on the Cavalieri principle. Tumour growth during the observation period was analysed and different growth models were fitted to the data.ResultsFifteen pituitary adenomas (12 recurrent tumours and 3 newly diagnosed tumours) were longitudinally observed during a median observation period of 7.4 years (range: 2.3–11.9 years). Growth kinetics could be described either by an exponential growth model (nine patients) or by a logistic model (five patients) with initial exponential growth followed by deceleration of growth. One tumour remained unchanged in size during the observation period. None of the adenomas showed accelerated growth during the observation period. Overall, the linear growth model was not suitable to describe the growth kinetics of non-functioning pituitary adenomas.ConclusionsOur study shows that growth of pituitary adenomas can be described by distinct growth models. Knowledge of growth dynamics has implications for clinical practice and helps to adjust scanning protocols for follow-up investigations.

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