Results 41 to 50 of about 207,726 (317)

Facilitating nitrogen accessibility to boron-rich covalent organic frameworks via electrochemical excitation for efficient nitrogen fixation

open access: yesNature Communications, 2019
Covalent organic frameworks are potential catalysts for nitrogen reduction, but limited nitrogen transport restricts the utilization ratio of active sites.
Sisi Liu   +5 more
doaj   +1 more source

Infection Control Practices for Vascular Access Management in Hemodialysis: Results From a Nationwide Survey of Japanese National University Hospitals

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Bloodstream infections due to repeated vascular access (VA) puncture and circuit connections remain major concerns in hemodialysis. Therefore, we examined current practices for glove, disinfectant, and personal protective equipment (PPE) use according to VA type in national university hospitals in Japan.
Aiko Yamada   +6 more
wiley   +1 more source

Shake Hands to Bedevil: Securing Email with Wearable Technology [PDF]

open access: yes, 2014
Email users rarely use end-to-end encryption. It takes effort and requires explicit action. Users may not see the need for this, have access to the technology, possess the know-how, or may be faced with complex interfaces.
Renkema-Padmos, Arne   +3 more
core   +1 more source

Ion-Sieving Dual-Scale Asymmetric Cellulose Membrane as a Sustainable Paper-Based Separator for Ultra-Stable Zinc Anodes

open access: yesNano-Micro Letters
Highlights A cost-effective and fully biodegradable dual-scale paper-based separator is engineered by intertwining macroporous rice paper with mesoporous nanofibers.
Xinlong Liu   +8 more
doaj   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

open access: yesFEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

A seamless auxetic substrate with a negative Poisson’s ratio of −1

open access: yesNature Communications
Auxetic metamaterials are a unique class of materials or structures with a negative Poisson’s ratio and a wide array of functionalities. However, their inherent porosity presents challenges in practical applications.
Yung Lee   +12 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Developing User Interfaces for Wearable Computers: Don't Stop to Point and Click [PDF]

open access: yes, 2000
Typical usage scenarios for wearable computers are support of users doing a certain task, e.g. aircraft repair or military applications. If the user is moving while using the wearable some restriction for the user interface apply.
Thate, O.   +3 more
core  

Non-Invasive Fetal Electrocardiogram Monitoring Techniques: Potential and Future Research Opportunities in Smart Textiles

open access: yesSignals, 2021
During the pregnancy, fetal electrocardiogram (FECG) is deployed to analyze fetal heart rate (FHR) of the fetus to indicate the growth and health of the fetus to determine any abnormalities and prevent diseases. The fetal electrocardiogram monitoring can
Geetika Aggarwal, Yang Wei
doaj   +1 more source

Wearable microPosters

open access: yesmicroPublication biology, 2019
One barrier to communication at large face-to-face meetings, especially those focusing on scientific or technical topics, is a rapid way to understand what a person knows and thinks about before initiating a conversation. We have devised and reduced to practice an effective way to accomplish this task, the wearable microPoster.
Lee, James S., Sternberg, Paul W.
openaire   +3 more sources

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