Results 131 to 140 of about 1,801,213 (296)

North African migration systems: evolution, transformations and development linkages

open access: yes, 2007
The main aim of this paper is to understand the evolution and transformation of North African migration systems since 1945 within a conceptual framework drawing on migration systems and transitional migration theory.
de Haas, Hein
core  

Molecular insights into the effect of hydrocarbon gas composition characteristics on tight oil migration

open access: yesScientific Reports
Developing unconventional reservoirs through gas injection has become increasingly popular in recent years. Among the various injector gases, hydrocarbon gas is considered one of the most promising fluids for use in the EOR process.
Yingnan Zhang   +3 more
doaj   +1 more source

Summary report on the MIPEX health strand and country reports [PDF]

open access: yes, 2016
The Migrant Integration Policy Index (MIPEX) Health strand is a questionnaire designed to supplement the existing seven strands of the MIPEX, which in its latest edition (2015) monitors policies affecting migrant integration in 38 different countries ...
International Organization for Migration   +1 more
core  

Migration and development. A theoretical perspective [PDF]

open access: yes, 2007
de Haas H. Migration and development. A theoretical perspective. COMCAD Arbeitspapiere - working papers, 29.
de Haas, Hein
core  

Migration aspirations and immobility in a Malian Soninke village [PDF]

open access: yes, 2008
This paper explores the local meaning of migration and the experience of immobility among young men of Soninke ethnicity in a village in the Kayes region of Mali.
Jónsson, Gunvor
core  

World migration report 2022 : chapter 6 - peace and security as drivers of stability, development and safe migration

open access: yes, 2021
Published online: 01 December 2021This chapter draws upon existing evidence to explore the interaction between conflict, instability and insecurity; development; and migration, showing that instability or conflict feed negatively on development and hence
KITIMBO, Adrian   +2 more
core  

Evolutionary, Functional and Mechanistic Characterisation of Microbial Terpene Synthase‐Like Genes From Springtails

open access: yesAngewandte Chemie International Edition, EarlyView.
A genome analysis revealed the presence of many bacterial‐type terpene synthases in springtails. Four enzymes from Sinella curviseta were functionally characterised, resulting in the isolation of several compounds including sinellene ether, the first diterpene ether identified from a terpene synthase that represents a novel skeleton.
Min Wang   +5 more
wiley   +1 more source

Methanol Decomposition on TiO2 Under Ambient Conditions: Cooperative Proton Transfer at Hydrated Interfaces

open access: yesAngewandte Chemie International Edition, EarlyView.
Under ambient conditions, the TiO2 surface becomes hydrated by adsorbed hydroxyl groups (OH) and water molecules. This surface hydration promotes methanol decomposition, rendering the first deprotonation step nearly barrierless compared with ideal UHV conditions.
Milad Salarinasab   +12 more
wiley   +1 more source

Hydrocarbon migration in the Utsira High area

open access: yes, 2021
Masteroppgave i geovitenskap GEOV399 MAMN ...
openaire   +1 more source

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