Results 131 to 140 of about 215,505 (298)

The Historical Fertility Transition: A Guide for Economists [PDF]

open access: yes
The historical fertility transition is the process by which much of Europe and North America went from high to low fertility in the nineteenth and early twentieth centuries.
Timothy W. Guinnane
core  

On the Consequences of Demographic Change for Rates of Returns to Capital, and the Distribution of Wealth and Welfare [PDF]

open access: yes, 2006
In the industrialized world the population is aging over time, reducing the fraction of the population in working age. Consequently labor is expected to be scarce, relative to capital, with an ensuing decline in the real return on capital.
Krueger, Dirk   +2 more
core  

Peripheral Neutrophil Activation and Extracellular Trap Formation in Amyotrophic Lateral Sclerosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
Markers of neutrophil activation are increased in plasma during ALS, and markers of NET formation associate with ALS survival. ABSTRACT Objectives Peripheral neutrophil levels in amyotrophic lateral sclerosis (ALS) inversely correlate with survival, suggesting a role for neutrophils in disease progression.
Lillia A. Baird   +9 more
wiley   +1 more source

India’s Demographic Transition: Boon or Bane? A State-Level Perspective

open access: yes
Age structure and its dynamics are critical in understanding the impact of population growth on a country’s growth prospects. Using state-level data from India, we show that the pace of demographic transition varies across states, and that these ...
Utsav, Kumar
core  

The Demographic Transition, with Data from Brazil

open access: yesSocius
The demographic transition—the process through which declines in mortality precede declines in fertility, leading to a period of population growth and the long-term restructuring of the age composition—holds remarkable power to explain the state of our ...
Sara Lopus
doaj   +1 more source

Electroencephalographic Normalization as a Biomarker of Clinical Recovery in Down Syndrome Regression Disorder

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Down syndrome regression disorder is a syndrome characterized by subacute loss of cognitive, behavioral, and functional abilities in individuals with Down syndrome. Electroencephalography abnormalities are frequently observed during evaluation, but it remains unclear whether these findings represent a dynamic marker of disease ...
Jonathan D. Santoro   +14 more
wiley   +1 more source

Early and Late Demographic Transitions: the Role of Urbanization

open access: yes
This paper uses new estimates of the dates on which different countries have experienced their demographic transition to address two empirical questions.
Cuberes, David
core  

Demographic Change and Economic Growth in Asia [PDF]

open access: yes
In 1994 the World Bank called East Asia's strong economic growth performance a "miracle". Trade openness, high savings rates, human capital accumulation, and macroeconomic policy only explained part of this growth performance; the remainder was left ...
David E. Bloom   +2 more
core  

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright   +10 more
wiley   +1 more source

Demographic transitions in Europe and the world

open access: yes, 2014
The demographic transition is a universal phenomenon. All regions of the world experience a change from high levels of mortality and fertility to low levels.
Willekens, Frans
core  

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