Results 131 to 140 of about 2,742,123 (281)

How to Make Guest Worker Visas Work [PDF]

open access: yes, 2013
President Obama and a bipartisan group of eight senators have begun to push for immigration reform. Speaker of the House John Boehner (R-OH) likewise said he supports an immigration overhaul as a "top priority" for 2013.
Alex Nowrasteh
core  

Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis   +11 more
wiley   +1 more source

Influence of recovery model of coalbed methane wells after drainage interruption on coal fines migration in propped fractures

open access: yesMeikuang Anquan
In the drainage process of coalbed methane well, the interruption of drainage will induce a large amount of coal fines to stay in propped fractures, causing damage to the permeability of propped fractures. Based on the solid-liquid two-phase flow and gas-
Chonghao MAO   +5 more
doaj   +1 more source

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

open access: yesAdvanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu   +9 more
wiley   +1 more source

Weakly-consolidated sandstone fracture conductivity under combined action of compressing, proppant embedding and fines plugging: experiments, model and application

open access: yesJournal of Petroleum Exploration and Production Technology
Hydraulic fracturing is widely used to enhance hydrocarbon production in low-permeability reservoirs, but its application in loosely cemented sandstone reservoirs presents unique challenges.
Guolong Li   +4 more
doaj   +1 more source

Modulating Interfacial Potential Gradients in Metal−Carbon Catalysts via Phase‐Engineering for Lithium–Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
It is elucidated that phase engineering of cobalt modulates the interfacial potential gradients of cobalt–carbon electrocatalysts, enhancing the intrinsic electrocatalytic performance. Modulating the dominant crystalline phase of cobalt from a hexagonal close‐packed to a face‐centered cubic enriches the electron density of carbon shells, thereby ...
Ji‐Oh Kim   +13 more
wiley   +1 more source

Does migration for domestic work reduce poverty? A review of the literature and an agenda for research [PDF]

open access: yes, 2014
This review of the published academic literature on internal and regional migration for domestic work in Africa and Asia shows a dearth of studies on internal migration for domestic work in South Asia, and both internal and regional migration for ...
Deshingkar, Priya   +2 more
core   +1 more source

Covalent Organic Frameworks for Photocatalytic CO2 Reduction: Metal Integration Principles, Strategies and Functions

open access: yesAdvanced Functional Materials, EarlyView.
Covalent organic frameworks (COFs) with metals have been recognized as versatile platforms for photocatalytic CO2 reduction (CO2PRR). Herein, an overview of metal integration strategies for COFs is systematically summarized. Regulatory mechanisms and structure–activity relationships between metal integration and COF‐based CO2PRR are emphasized.
Jie He   +5 more
wiley   +1 more source

Undocumented workers and regional differences in apparel labor markets [PDF]

open access: yes
Clothing trade ; Textile industry ; Labor market ; Immigration Reform and Control Act of 1986 ; California ; Emigration and ...
Carolyn Sherwood-Call
core  

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