Results 81 to 90 of about 42,695 (254)

From depression to youth school gun carrying in America: Social connectedness may help break the link

open access: yesCogent Social Sciences, 2017
School shootings are a serious US problem. Except for restricting the access to firearms, previous research has not identified mediating factors that block the pathway leading from adolescent depression to gun carrying and violence.
Shao-Chiu Juan, David Hemenway
doaj   +1 more source

Graphene Layers as Functional Biomaterials. From Fabrication and Characterization to Biological Applications

open access: yesAdvanced Materials Interfaces, EarlyView.
Graphene layers are fabricated on Cu foil and transferred onto glass substrates to form double‐ and multi‐layer G‐glass. Raman spectroscopy confirms structural integrity, while SEM and fluorescence microscopy reveal favorable adhesion and spreading of L‐929 fibroblast cells.
Mariana Mihaela Apostol   +8 more
wiley   +1 more source

Spontaneous Nanopatterning and Strain Relaxation in SiGe Layers Grown by Oxidative Solid‐Phase Epitaxy

open access: yesAdvanced Materials Interfaces, EarlyView.
Thin SiGe buffer layers are grown by oxidative solid‐phase epitaxy, resulting in a nanopatterning of varying Ge concentration across the surface of the sample. The nanopatterning is caused by a hexagonal network of dislocations on the SiGe/Si(111) interface, and is visible by scanning electron microscopy, providing a non‐destructive method for ...
Sophie E. Bierer   +7 more
wiley   +1 more source

Two‐Way Shape Memory Polymer Composite Gripper for Adaptive Robotic Applications

open access: yesAdvanced Materials Technologies, EarlyView.
A two‐way shape memory polymer (SMP) composite is developed with intrinsic shape‐changing capability driven solely by temperature, eliminating external actuation loads. Embedding the SMP in a low‐stiffness elastomeric matrix enabled reversible transformations during heating and cooling cycles.
Aamna Hameed, Kamran Ahmed Khan
wiley   +1 more source

Comparison of the effect of a period of physical fitness training with and without transcranial direct current stimulation (tDCS) on decision-making and pistol shooting performance [PDF]

open access: yesفصلنامه ابن سینا
Background and aims: Complete combat readiness is an emerging concept in the 21st century that is achieved by integrating mental and physical components.
Mohammad Esmaieli   +2 more
doaj  

[Guns and Ammo Clipping]

open access: yes
Guns and Ammo Magazine advertisement for Klein's Sporting ...
Guns and Ammo Magazine
core  

Two 6-inch Mark-XI guns on turrets East Point

open access: yes, 1930
Two 6-inch Mark-XI guns removed from Brisbane.

core  

Spatially Configurable Conformal Sensor Integration on an Ultra‐Fine Metallic Needle for Minimally Invasive Deep‐Tissue Oxygen Monitoring

open access: yesAdvanced Materials Technologies, EarlyView.
A multi‐point oxygen‐sensing ultra‐fine needle (MO‐UFN) is developed by conformally integrating a lithographically patterned flexible electrochemical sensor array onto a clinical acupuncture needle. The platform preserves an approximately 0.3 mm diameter while enabling spatially resolved oxygen profiling along the insertion pathway.
Yeju Seo   +9 more
wiley   +1 more source

Low‐Outgassing Liquid Metal–Silicone Composites for Multifunctional Space Applications

open access: yesAdvanced Materials Technologies, EarlyView.
Integrating liquid metal microdroplets into a space‐grade silicone creates a multifunctional composite while preserving its inherent flexibility and low‐outgassing behavior. The composite has 11×$\times$ higher thermal conductivity while remaining thermally stable and maintaining a total mass loss of ≤$\le$ 1% under thermal vacuum testing.
Spencer Pak   +5 more
wiley   +1 more source

Gaps continue in firearm Surveillance: Evidence from a large U.S. city Bureau of Police

open access: yesSocial Medicine, 2016
Word Count: 330 While the broad relationship between violence, poor health outcomes and firearms is well-established, there is limited research in the public health field on the source of guns collected by police departments, many of which are used ...
Anthony Fabio   +4 more
doaj  

Home - About - Disclaimer - Privacy