Results 81 to 90 of about 818,732 (273)

The Arizona Kith and Kin Project Evaluation, Brief #4 [PDF]

open access: yes, 2016
Despite the prevalence of family, friend, and neighbor (FFN) child care (NSECE, 2015), relatively little is known about the characteristics of this type of care, quality of care, and the features of effective quality improvement initiatives for FFN care ...
Farago, Flora   +2 more
core   +1 more source

A Bespoke Programmable Interpenetrating Elastomer Network Composite Laryngeal Stent for Expedited Paediatric Laryngotracheal Reconstruction

open access: yesAdvanced Functional Materials, EarlyView.
A programmable interpenetrating double‐network architecture, created via 3D‐TIPS printing and resin infusion, synergistically combines thermoplastic and thermosetting elastomers to balance structural rigidity and surface softness—crucial for paediatric laryngeal stents.
Elizabeth F. Maughan   +14 more
wiley   +1 more source

Demography and the tragedy of the commons

open access: yes, 2010
Individual success in group-structured populations has two components. First, an individual gains by outcompeting its neighbors for local resources. Second, an individual's share of group success must be weighted by the total productivity of the group ...
Alexander   +48 more
core   +2 more sources

Optimal and Robust Transmit Designs for MISO Channel Secrecy by Semidefinite Programming [PDF]

open access: yes, 2011
In recent years there has been growing interest in study of multi-antenna transmit designs for providing secure communication over the physical layer.
Li, Qiang, Ma, Wing-Kin
core   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Kin

open access: yes, 2020
The project Kin explores our connection to other beings (sentient and otherwise) with the emphasis on the vibrance and agency of all matter. The objective of the project is to expand our perception of self by studying our entangled being-in-the-world using the poetic and artistic to collaborate with and expand on the scientific methods of ...
openaire   +3 more sources

Momentum flux density, kinetic energy density and their fluctuations for one-dimensional confined gases of non-interacting fermions

open access: yes, 2000
We present a Green's function method for the evaluation of the particle density profile and of the higher moments of the one-body density matrix in a mesoscopic system of N Fermi particles moving independently in a linear potential. The usefulness of the
Anna Minguzzi   +24 more
core   +1 more source

Exploiting Two‐Photon Lithography, Deposition, and Processing to Realize Complex 3D Magnetic Nanostructures

open access: yesAdvanced Functional Materials, EarlyView.
Two‐photon lithography (TPL) enables 3D magnetic nanostructures with unmatched freedom in geometry and material choice. Advances in voxel control, deposition, and functionalization open pathways to artificial spin ices, racetracks, microrobots, and a number of additional technological applications.
Joseph Askey   +5 more
wiley   +1 more source

Probabilistic projections of distributions of kin over the life course [PDF]

open access: yesDemographic Research
BACKGROUND: Mathematical kinship demography is an expanding area of research. Recent papers have explored the expected number of kin a typical individual should experience.
Joe Butterick   +4 more
doaj   +1 more source

Multiple Twinning in Nacre and Aragonite

open access: yesAdvanced Functional Materials, EarlyView.
Electron backscatter diffraction map of a cluster of geologic aragonite, exhibiting single, double, and triple twins. The whole cluster is approximately 2 cm wide. Colors indicate crystal orientations, so that pixels where the a‐, b‐, and c‐axis is perpendicular to the image plane are green, red, and blue, respectively.
Connor A. Schmidt   +7 more
wiley   +1 more source

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