Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Transport Number01:31

Transport Number

15
The transport number is the fraction of the total current carried by an ion in an electrolyte solution. It is defined as the ratio of the current carried by a specific ion to the total current flowing through the solution. The transport number, t, is central to understanding ionic mobility, which describes how fast an ion moves under the influence of an electric field. This link connects the physical behavior of ions in solution to the chemical processes that occur during electrochemical...
15
Cell Migration01:09

Cell Migration

19.0K
Cell migration, the process by which cells move from one location to another, is essential for the proper development and viability of organisms throughout their life. When cells are not able to migrate properly to their ordained locations, various disorders may occur. For example, disruption in cell migration causes chronic inflammatory diseases such as arthritis.
19.0K
Migration00:53

Migration

9.0K
Migration is long-range, seasonal movement from one region or habitat to another. This common strategy, carried out by many different organisms around the world, is an adaptive response that typically corresponds to changes in an organism’s environment, like resource availability or climate. Migrations can involve huge groups of thousands of animals as well as single individuals traveling alone and can range from thousands of kilometers to just a few hundred meters.
9.0K
Thermal Sigmatropic Reactions: Overview01:16

Thermal Sigmatropic Reactions: Overview

2.6K
Sigmatropic rearrangements are a class of pericyclic reactions in which a σ bond migrates from one part of a π system to another. These are intramolecular rearrangements where the total number of σ and π bonds remain unchanged.
Sigmatropic shifts are classified based on an order term [i, j ], where i and j indicate the number of atoms across which each end of the σ bond migrates. Below are examples of a [3,3] sigmatropic shift in 1,5-hexadiene, referred...
2.6K
Cell Migration01:19

Cell Migration

6.9K
Cell migration is a process by which the cells move from one location to another, playing an essential role in embryological development, repair and regeneration, immune response, and metastasis. Cells migrate in response to chemical or mechanical signals generated by specific organs or tissues. The overall mechanism includes three steps - polarization, protrusion, and release. Polarization involves the formation of a distinct cell front and rear, which determines the direction of movement.
6.9K
Nuclear Localization Signals and Import01:46

Nuclear Localization Signals and Import

8.0K
Proteins targeted to the nucleus carry short stretches of amino acid sequences called the nuclear localization signal or NLS. Classical nuclear localization signals are of two types: monopartite and bipartite NLS. Monopartite classical NLS (cNLS) consists of a single cluster of 4-8 amino acids. Bipartite cNLS consists of two clusters of  2-3 amino acids and a 9-12 residue long proline-rich linker bridging the two clusters. Signal clusters are rich in positively charged amino acids such as...
8.0K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

[Not Available].

Population·2011
Same author

[Not Available].

Population·2011
Same author

'Take the stairs instead of the escalator': effect of environmental prompts on community stair use and implications for a national 'Small Steps' campaign.

Obesity reviews : an official journal of the International Association for the Study of Obesity·2006
Same author

Phase contrast X-ray imaging of mice and rabbit lungs: a comparative study.

The British journal of radiology·2005
Same author

Dynamic imaging of the lungs using x-ray phase contrast.

Physics in medicine and biology·2005
Same author

Factor Xa inhibitors (Berlex).

IDrugs : the investigational drugs journal·2005
Same journal

Extreme Weather and Mortality of Vulnerable Urban Populations: An Examination of Temperature and Unclaimed Deaths in New York City.

Demography·2026
Same journal

Overlooked Potential? Childcare Services and Ukrainian Refugee Mothers in Germany.

Demography·2026
Same journal

Effect of First Births on Women's Employment in a Low-Income Context: Research Note Using Panel Data From Nepal.

Demography·2026
Same journal

Decomposing Differences in Cohort Health Expectancy by Cause and Age With Longitudinal Data.

Demography·2026
Same journal

Wildfires and Birth Outcomes: Evidence From Spain.

Demography·2026
Same journal

The Effect of the Great Recession on U.S. Fertility: Causal Estimates From a Novel Cohort Discontinuity Design.

Demography·2026
See all related articles

Related Experiment Video

Updated: Mar 1, 2026

Nuclear Migration in the Drosophila Oocyte
04:17

Nuclear Migration in the Drosophila Oocyte

Published on: May 13, 2021

4.6K

Internal migration in the USSR: 1897-1926.

J W Leasure1, R A Lewis

  • 1Columbia University, USA.

Demography
|February 15, 2011
PubMed
Summary
This summary is machine-generated.

Internal migration in the USSR, particularly before the 1926 census, was strongly linked to income differences. Key migration patterns and destinations remained consistent with earlier periods, showing movement towards higher-income regions.

More Related Videos

Assessment of Lymphocyte Migration in an Ex Vivo Transmigration System
10:25

Assessment of Lymphocyte Migration in an Ex Vivo Transmigration System

Published on: September 20, 2019

7.4K
Culture of Adult Transgenic Zebrafish Retinal Explants for Live-cell Imaging by Multiphoton Microscopy
11:55

Culture of Adult Transgenic Zebrafish Retinal Explants for Live-cell Imaging by Multiphoton Microscopy

Published on: February 24, 2017

9.2K

Related Experiment Videos

Last Updated: Mar 1, 2026

Nuclear Migration in the Drosophila Oocyte
04:17

Nuclear Migration in the Drosophila Oocyte

Published on: May 13, 2021

4.6K
Assessment of Lymphocyte Migration in an Ex Vivo Transmigration System
10:25

Assessment of Lymphocyte Migration in an Ex Vivo Transmigration System

Published on: September 20, 2019

7.4K
Culture of Adult Transgenic Zebrafish Retinal Explants for Live-cell Imaging by Multiphoton Microscopy
11:55

Culture of Adult Transgenic Zebrafish Retinal Explants for Live-cell Imaging by Multiphoton Microscopy

Published on: February 24, 2017

9.2K

Area of Science:

  • Demography
  • Economic History
  • Sociology

Background:

  • Internal migration is a complex phenomenon influenced by various factors.
  • Understanding historical migration patterns is crucial for analyzing societal and economic development.
  • The Soviet Union (USSR) experienced significant internal population shifts during the early 20th century.

Purpose of the Study:

  • To describe and analyze internal migration patterns in the USSR using 1926 census data.
  • To investigate the relationship between economic differentials and internal migration flows.
  • To utilize proxy variables for income due to data limitations.

Main Methods:

  • Analysis of aggregate and regional migration patterns based on place-of-birth data from the 1926 USSR census.
  • Examination of migration in relation to economic differentials (guberniya).
  • Use of labor force distribution, literacy, and urbanization data as substitutes for direct income data.

Main Results:

  • Income differences, indirectly derived from census data, showed a strong correlation with internal migration in the USSR before 1926.
  • Significant similarities were observed in internal migration patterns between the periods preceding the 1897 and 1926 censuses.
  • Migrants predominantly moved from lower-income to higher-income regions in both analyzed periods.

Conclusions:

  • Economic factors, particularly income differentials, were primary drivers of internal migration in the USSR.
  • Historical migration trends in the USSR exhibited remarkable continuity over several decades.
  • The study highlights the enduring influence of economic opportunities on population mobility.