Results 151 to 160 of about 670,579 (287)

Return Migration and Occupational Change: The Case of Pakistani Migrants Returned from the Middle East [PDF]

open access: yes
This paper examines the factors affecting occupational composition of Pakistani workers upon their return from Middle East employment by using the 1986 ILO/ARTEP Survey of Return Migrant Households.
G.M. Arif, M. Irfan
core  

Performance Constraints of All‐Perovskite Tandem Solar Cells in Low‐Intensity, Low‐Temperature Environments

open access: yesAdvanced Materials, EarlyView.
All‐perovskite tandem solar cells are evaluated under low‐intensity and low‐temperature (LILT) conditions relevant to space environments. Distinct loss regimes emerge, where weaker entropic mixing causes halide segragation below ≈240 K going along with a strong current imbalance, while poor electron transport in C60 dominates.
Sercan Ozen   +10 more
wiley   +1 more source

Liquid Metal Microrobots for Magnetically Guided Transvascular Navigation

open access: yesAdvanced Materials, EarlyView.
Liquid metal‐based microrobots combine magnetic steering, intrinsic X‐ray visibility and softness, to navigate blood vessels even against flow. Under clinically relevant magnetic fields, liquid metal microrobots roll along vessel walls, cross endothelial barriers, and accumulate in target tissues.
Xiaohui Ju   +7 more
wiley   +1 more source

The effects of integration and transnational ties on international return migration intentions [PDF]

open access: yes
While return migration is receiving increasing attention, there is still insufficient insight into the factors which determine migrants’ intentions and decisions to return.
Hein de Haas, Tineke Fokkema
core  

A Quasi‐Solid Ionic Liquid‐Polymer Hybrid Electrolyte for Shuttle‐Free and Dendrite‐Free Aqueous Zinc─Bromine Batteries

open access: yesAdvanced Materials, EarlyView.
A quasi‐solid ionic liquid‐polymer hybrid electrolyte is proposed to achieve shuttle‐free and dendrite‐free aqueous Zn─Br batteries. Synergetic effects between Zn2+ selective conduction of polyanionic network and polybromide complexing additive suppress the shuttle effect and improve Zn reversibility.
Rujiao Ma   +6 more
wiley   +1 more source

What Determines the Duration of Stay of Immigrants in Germany?: Evidence from a Longitudinal Duration Analysis [PDF]

open access: yes
We analyze the return-migration of German immigrants using the latest data of the German Socio- Economic Panel from 1984 to 2006. We conduct a Cox proportional hazard model with years of residence in Germany as waiting time.
Heiko Peters, Sebastian Gundel
core  

Beyond Earth: Resilience of Quasi‐2D Perovskite Solar Cells in Space

open access: yesAdvanced Materials, EarlyView.
In the article (DOI: 10.1002/adma.202520433), Christoph Putz and co‐workers demonstrate rigid quasi‐2D perovskite solar cells operating in low Earth orbit, delivering stable power for more than 100 days under real‐space conditions. In‐orbit performance is correlated with extensive ground‐based thermal and proton‐irradiation studies on rigid and ...
Christoph Putz   +17 more
wiley   +1 more source

Return Migration and Saving Behavior of Foreign Workers in Germany [PDF]

open access: yes
In this paper, I develop a dynamic stochastic model of joint return migration and saving decisions that accounts for uncertainty in future employment and income and estimate this model using a longitudinal dataset on legal immigrants in Germany.
Murat G. Kirdar
core  

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