Results 131 to 140 of about 254,231 (333)

How to Chemically Protect PFAS‐Free Membranes in Fuel Cells: Radical Quenching Poly(vinylphosphonic acid) Layer

Advanced Functional Materials, EarlyView.
Hydrocarbon membranes are a greener alternative to PFSA in PEM fuel cells, but degrade rapidly from radical attack. We present a novel strategy using poly(vinylphosphonic acid) (PVPA) as a local radical scavenger. Incorporated as an interfacial barrier, PVPA enhances chemical stability and significantly extends membrane lifetime under accelerated ...
Hendrik Sannemüller, Hannes Liepold, Frederik Brendel, Janka Friese, Carolin Klose, Tym de Wild, Andreas Münchinger   +6 more
wiley   +1 more source

Ohm’s law lost and regained: observation and impact of transmission and velocity zeros

Nature Communications
The quantum conductance and its classical wave analogue, the transmittance, are given by the sum of the eigenvalues of the transmission matrix. However, neither measurements nor theoretical analysis of the transmission eigenchannels have been carried out
Krishna Joshi, Israel Kurtz, Zhou Shi, Azriel Z. Genack   +3 more
doaj   +1 more source

Sustainable Catalyst‐Free PLG Networks: Recyclability, Biodegradability, and Functional Performance

Advanced Functional Materials, EarlyView.
A catalyst‐additive free covalent adaptable network is developed from star‐shaped poly(lactide‐co‐glycolide) cross‐linked with pyromellitic dianhydride, enabling internal carboxylic acid‐driven transesterification. The resulting biodegradable network exhibits mechanical robustness (Young's modulus ≈1.6 GPa), complete recyclability, rapid biodegradation
Lars Schwarzer, Emilia Fulajtar, Seema Agarwal   +2 more
wiley   +1 more source

Estuarine turbidity, flushing, salinity, and circulation [PDF]

The effects of estuarine turbidity, flushing, salinity, and circulation on the ecology of the Chesapeake Bay are discussed. The sources of fresh water, the variations in salinity, and the circulation patterns created by temperature and salinity changes ...
Pritchard, D. W.
core   +1 more source

Hydrographic observations in Elkhorn Slough and Moss Landing Harbor, California, October 1970 to November 1971. Annual report, Part 3, July 1972 [PDF]

, 1972
In October 1970, Moss Landing Marine Laboratories began an observational program to determine/the seasonal changes in the water chemistry of Elkhorn Slough and Moss Landing Harbor. This data report contains the first year of data (October 1970 - November
Broenkow, William W., Smith, Richard E.
core  

Ascorbic Acid Modulates Collagen Properties in Glucocorticoid‐Induced Osteoporotic Bone: Insights into Chemical, Mechanical, and Biological Regulation

Advanced Healthcare Materials, EarlyView.
Osteoporosis from long‐term glucocorticoid (GIOP) use elevates susceptibility to fracture. This study shows GCs impair ascorbic acid (AA) metabolism in osteoblasts, collagen synthesis and extracellular matrix integrity. AA enhanced collagen biochemical and mechanical properties and restored osteoblast and endothelial function. These findings underscore
Micaila DE Curtis, Yoontae Kim, Rahul Patil, Xinran Zhang, Meth Jayatilake, Orelle Bulgin, Peter Lialios, Sana Surrency, Soraya Tarrah, Argyris K. Lazaris, Alison Grafton, James Williams IV, Seyedeh Boshra Nouraie, Maria Bizaki, Penelope Xeron, Edward Van Keuren, Jonathan E. Seppala, Evagelia C. Laiakis, Joanna B. Kitlinska, Stella Alimperti   +19 more
wiley   +1 more source

The state of Florida's estuaries and future needs in estuarine research: Part 2. an academic research agenda (review draft) [PDF]

, 1996
As a program supporting academic research that addresses recognized societal needs, the Florida Sea Grant Program is developing a research theme area on estuaries to provide a uniquely academic product that will augment mission-oriented research ...
Christie, Donna R., Kleppel, G.S., Milon, J. Walter, Smith, Ned P., Vargo, Gabriel A.   +4 more
core  

A Sacrificial 3D Printed Vessel‐on‐Chip Demonstrates a Versatile Approach to Model Granulation Tissue

Advanced Healthcare Materials, EarlyView.
A novel method that combines 3D printing and organ‐on‐chip technology enables the creation of hollow channels lined with endothelial cells through a fibroblast‐populated connective tissue matrix. The model supports stable metabolic culture conditions, angiogenic sprouting, and immune cell migration, thereby demonstrating an easy and versatile method to
Jonas Jäger, Phil Berger, Andrew I. Morrison, Hendrik Erfurth, Maria Thon, Eva‐Maria Dehne, Susan Gibbs, Jasper J. Koning   +7 more
wiley   +1 more source

Comparative Analysis of RT-PCR and a Colloidal Gold Immunochromatographic Assay for SARS-CoV-2 Detection

Diagnostics
Background/Objectives: The COVID-19 pandemic has highlighted the urgent need for rapid, accurate, and accessible diagnostic testing to effectively manage and contain the spread of SARS-CoV-2.
Hui Li, Dakai Liu, Qiang Zhou, George D. Rodriguez, Harlan Pietz, Vishnu Singh, Eric Konadu, Keither K. James, Calvin Lui, Mingyu Shao, Junyu Chen, Andrew Schreiner, Carl Urban, James Truong, Nishant Prasad, William Harry Rodgers   +15 more
doaj   +1 more source

Plasma urea nitrogen and progesterone concentrations and follicular dynamics in ewes fed proteins of different degradability

Revista Brasileira de Zootecnia, 2012
The effects of overfeeding with protein of different degradability on body condition, plasma urea nitrogen and progesterone concentrations, ovulation number and follicular dynamics were assessed in Santa Ines ewes.
Gustavo Bianchi Lazarin, Nadja Gomes Alves, Juan Ramon Olalquiaga Perez, Renato Ribeiro de Lima, Iraides Ferreira Furusho Garcia, Antônio José Neto, Daniel Navarro Cardoso do Vale, Gabriela de Abreu Saunders   +7 more
doaj   +1 more source