Results 71 to 80 of about 1,575,285 (315)

The dependence of Ge detectors efficiency on the density of the samples in gamma-ray spectrometry [PDF]

open access: yesNuclear Technology and Radiation Protection, 2007
The effect of the density of environmental samples on the counting efficiency of Ge detectors used in gamma-spectrometry was studied. The dependence εff(ρ) was determined for two HPGe detectors (relative efficiencies 18% and 20%) using five radioactive ...
Vukašinović Ivana   +2 more
doaj   +1 more source

Selective Flamingo Medium for the Isolation of Aspergillus fumigatus

open access: yesMicroorganisms, 2021
For various studies in the clinic as well as the environment, it is essential to be able to selectively isolate Aspergillus fumigatus from samples containing bacteria as well as various other fungi (mainly Mucorales).
Jianhua Zhang   +3 more
doaj   +1 more source

Calpain small subunit homodimerization is robust and calcium‐independent

open access: yesFEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy   +4 more
wiley   +1 more source

Final Report (Draft) Genotoxicity and cytotoxicity testing of environmental samples [PDF]

open access: yes, 1992
This report is a continuous work on the biological assessment involving genotoxicity and cytotoxicity testing of environmental samples from the state of New Jersey.

core   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

A comparison of microscopic and spectroscopic identification methods for analysis of microplastics in environmental samples [PDF]

open access: yes, 2015
The analysis of microplastics in various environmental samples requires the identification of microplastics from natural materials. The identification technique lacks a standardized protocol.
Lee, Jongmyoung   +6 more
core   +1 more source

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

open access: yesFEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Environmental Assessment--FY 1979 Winter Navigation Demonstration on the St. Lawrence River--Technical Reports: Volume II; TR-K. Primary Producers, Seconday Consumers, and Water Quality in the St. Lawerence River. [PDF]

open access: yes, 2010
Volume Two of the Environmental Assessment of the proposed FY 1979 Winter Navigation Demonstration on the St. Lawrence River.Comparisons of the Demonstration Corridor with baseline stations indicate that the phytoplankton community structure and biomass ...
New York (State). Dept. of Environmental Conservation, SUNY College of Environmental Science and Forestry
core  

Detection of Multidrug-Resistant Integrons Associated with Acinetobacter baumannii Isolated from Clinical and Environmental Samples [PDF]

open access: yes
The emergence of multidrug resistance (MDR) among pathogenic bacteria is a root cause of severe infections. It is threatening to observe that MDR is also found in ESKAPE (Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter ...
Varsha Prakash Shetty   +2 more
core   +2 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

open access: yesFEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura   +2 more
wiley   +1 more source

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