1 resultado para Volunteer workers in science
em Cornell: DigitalCommons@ILR
Filtro por publicador
- ABACUS. Repositorio de Producción Científica - Universidad Europea (1)
- Academic Research Repository at Institute of Developing Economies (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (1)
- Aquatic Commons (1)
- Archive of European Integration (55)
- Aston University Research Archive (4)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (6)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (5)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (1)
- Biodiversity Heritage Library, United States (5)
- Bioline International (3)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (10)
- Boston College Law School, Boston College (BC), United States (1)
- Boston University Digital Common (1)
- Brock University, Canada (12)
- CaltechTHESIS (1)
- Cambridge University Engineering Department Publications Database (10)
- CentAUR: Central Archive University of Reading - UK (18)
- Center for Jewish History Digital Collections (2)
- Central European University - Research Support Scheme (2)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (3)
- Cochin University of Science & Technology (CUSAT), India (12)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (17)
- CORA - Cork Open Research Archive - University College Cork - Ireland (4)
- Cornell: DigitalCommons@ILR (1)
- Dalarna University College Electronic Archive (3)
- Deakin Research Online - Australia (101)
- DI-fusion - The institutional repository of Université Libre de Bruxelles (1)
- Digital Commons - Michigan Tech (4)
- Digital Commons @ DU | University of Denver Research (2)
- Digital Commons at Florida International University (9)
- Digital Peer Publishing (3)
- DigitalCommons@The Texas Medical Center (7)
- DigitalCommons@University of Nebraska - Lincoln (1)
- DRUM (Digital Repository at the University of Maryland) (2)
- Duke University (9)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (1)
- Greenwich Academic Literature Archive - UK (3)
- Helda - Digital Repository of University of Helsinki (8)
- Indian Institute of Science - Bangalore - Índia (23)
- Instituto Politécnico de Santarém (1)
- Instituto Politécnico do Porto, Portugal (3)
- Ministerio de Cultura, Spain (12)
- National Center for Biotechnology Information - NCBI (2)
- Portal de Revistas Científicas Complutenses - Espanha (7)
- QSpace: Queen's University - Canada (2)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (77)
- Queensland University of Technology - ePrints Archive (231)
- ReCiL - Repositório Científico Lusófona - Grupo Lusófona, Portugal (1)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (4)
- Repositório Científico do Instituto Politécnico de Santarém - Portugal (1)
- Repositório digital da Fundação Getúlio Vargas - FGV (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (24)
- Repositorio Institucional Universidad EAFIT - Medelin - Colombia (1)
- SAPIENTIA - Universidade do Algarve - Portugal (2)
- School of Medicine, Washington University, United States (1)
- SerWisS - Server für Wissenschaftliche Schriften der Fachhochschule Hannover (1)
- Universidad de Alicante (7)
- Universidad del Rosario, Colombia (16)
- Universidad Politécnica de Madrid (5)
- Universidade de Lisboa - Repositório Aberto (1)
- Universidade Metodista de São Paulo (1)
- Universitat de Girona, Spain (1)
- Universitätsbibliothek Kassel, Universität Kassel, Germany (6)
- Université de Lausanne, Switzerland (5)
- Université de Montréal, Canada (4)
- University of Connecticut - USA (1)
- University of Michigan (153)
- University of Queensland eSpace - Australia (15)
- University of Southampton, United Kingdom (1)
- University of Washington (5)
- WestminsterResearch - UK (5)
- Worcester Research and Publications - Worcester Research and Publications - UK (2)
Resumo:
"Ever since the present political boundary separating Mexico and the United States was established in 1848 by the Treaty of Guadalupe Hidalgo and partially amended in 1853 by the Gadsden Purchase, there has been migration of Mexican citizens into the United States. In fact the border between the two nations was completely open until, with the passage of the Immigration Act of 1924, the Border Patrol was established and it became a felony to enter the United States illegally. No quota, however, was applied to immigration from Mexico until 1968. During that year legislation became effective which restricted total annual immigration from all Western Hemisphere nations to 120,000, with a maximum of 40,000 from any one country. Both these figures are regularly exceeded. In 1973, for instance, there were 173,123 legal immigrants from all Western Hemisphere nations, including 70,141 Mexicans. That the real flow exceeds the quotas is explained by the numerous exemptions allowed. With the exception of only three years since 1960, legal immigration from Mexico to the United States has exceeded that of every other nation in the world."