Results 61 to 70 of about 8,842,438 (372)

Temperature variation of ultraslow light in a cold gas [PDF]

open access: yesPhysical Review A, 2000
A model is developed to explain the temperature dependence of the group velocity as observed in the experiments of Hau et al (Nature {\bf397}, 594 (1999)). The group velocity is quite sensitive to the change in the spatial density. The inhomogeneity in the density and its temperature dependence are primarily responsible for the observed behavior.
Morigi, Giovanna   +2 more
openaire   +6 more sources

The thioredoxin‐like and one glutaredoxin domain are required to rescue the iron‐starvation phenotype of HeLa GLRX3 knock out cells

open access: yesFEBS Letters, EarlyView.
Glutaredoxin (Grx) 3 proteins contain a thioredoxin domain and one to three class II Grx domains. These proteins play a crucial role in iron homeostasis in eukaryotic cells. In human Grx3, at least one of the two Grx domains, together with the thioredoxin domain, is essential for its function in iron metabolism.
Laura Magdalena Jordt   +4 more
wiley   +1 more source

Effects of Repeated Exposure to Ambient Cold on the Development of Inflammatory Pain in a Rat Model of Knee Arthritis

open access: yesLife
This study investigated the effects of ambient cold exposure on inflammatory pain development, synovial cytokine levels, and spinal cord glial cell activation. Male Sprague–Dawley rats (6 weeks old) were divided into Cold and RT groups.
So-Hee Kim   +5 more
doaj   +1 more source

The Key Regulators and Metabolic Intermediates of Lignin Response to Low Temperatures Revealed by Transcript and Targeted Metabolic Profiling Analysis in Poplar

open access: yesAgronomy, 2022
Cold stress restricts the growth and development of plants. Lignin plays an important role in stress resistance. However, there are few studies on lignin mechanisms regulation under low-temperature stress. In this study, the contents of both acid-soluble
Xianyan Zhao, Panpan Li, Can Li, Tao Xia
doaj   +1 more source

Sudden cold temperature delays plant carbon transport and shifts allocation from growth to respiratory demand

open access: yes, 2014
Since substrates for respiration are supplied mainly by recent photo-assimilates, there is a strong but time-lagged link between short-term above- and belowground carbon (C) cycling.
M. Barthel   +3 more
semanticscholar   +1 more source

Small Cold Temperature Instrument Packages

open access: yesPhysics Procedia, 2011
AbstractWe are developing a small cold temperature instrument package concept that integrates a cold temperature power system with ultra low temperature ultra low power electronics components and power supplies now under development into a ‘cold temperature surface operational’ version of a planetary surface instrument package.
Clark, Pamela E.   +5 more
openaire   +2 more sources

Disruption of SETD3‐mediated histidine‐73 methylation by the BWCFF‐associated β‐actin G74S mutation

open access: yesFEBS Letters, EarlyView.
The β‐actin G74S mutation causes altered interaction of actin with SETD3, reducing histidine‐73 methylation efficiency and forming two distinct actin variants. The variable ratio of these variants across cell types and developmental stages contributes to tissue‐specific phenotypical changes. This imbalance may impair actin dynamics and mechanosensitive
Anja Marquardt   +8 more
wiley   +1 more source

Changes in Physicochemical Properties of Wild and Cultivated Blackberry during Postharvest Cold Storage

open access: yesJournal of Food Quality and Hazards Control, 2021
Background: Blackberry is a seasonal harvested fruit that is also very fragile and perishes quickly. A comparative study was conducted to find out influence of cold storage on physicochemical parameters of wild and cultivated blackberry over a period of ...
N. Azzouzi   +4 more
doaj  

Microstructure and Fatigue Characteristic of AM60B Magnesium Alloy

open access: yesMetals, 2012
This paper summarizes and reviews the findings of our research on AM60B magnesium alloy conducted in past 8 years. It essentially covers three categories: microstructural study, environmental effect, and fatigue crack growth rate of AM60B.
Morteza Mehrzadi, Farid Taheri, You Lu
doaj   +1 more source

Industrial Hemp (Cannabis sativa L.) Varieties and Seed Pre-Treatments Affect Seed Germination and Early Growth of Seedlings

open access: yesAgronomy, 2021
Seed germination and seedling growth are two essential early determinants of subsequent crop yield and quality. A high germination percentage of industrial hemp (Cannabis sativa L.) seed is required to import into Australia.
Mohammad Moinul Islam   +4 more
doaj   +1 more source

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