Results 61 to 70 of about 3,260,990 (309)

SPECTRAL PROPERTIES OF TWO WATER-SOLUBLE MELANINS [PDF]

Biotechnologia Acta
Aim. The work was purposed to study the spectral properties of two types of water-soluble melanins to clarify the nature of the optical absorption and emission centers in them. Materials and methods.
V.M. Kravchenko, T.V. Beregova, M.Yu. Lositskyi, T.O. Kondratyuk, S.A. Davydenko, E.S. Davydenko, S.S. Davydenko, L.P. Buchatskyi, V.M. Yashchuk   +8 more
doaj   +1 more source

Functional Characterization of Pseudoidium neolycopersici Photolyase Reveals Mechanisms Behind the Efficacy of Nighttime UV on Powdery Mildew Suppression

Frontiers in Microbiology, 2020
Powdery mildews can be controlled by brief exposure to ultraviolet (UV) radiation with devastating effect on their developmental stages including conidia germination. The treatment effect can be impaired by subsequent exposure to UV-A/blue light.
Ranjana Pathak, Åshild Ergon, Arne Stensvand, Arne Stensvand, Hans Ragnar Gislerød, Knut Asbjørn Solhaug, Lance Cadle-Davidson, Aruppillai Suthaparan   +7 more
doaj   +1 more source

Decomposition of in situ particulate absorption spectra

, 2013
A global dataset of in situ particulate absorption spectra has been decomposed into component functions representing absorption by phytoplankton pigments and non-algal particles.
Alison P. Chase, E. Boss, R. Zaneveld, A. Bricaud, H. Claustre, J. Ras, G. Dall’Olmo, T. Westberry   +7 more
semanticscholar   +1 more source

IX. The absorption spectra of the alkaloids [PDF]

Philosophical Transactions of the Royal Society of London, 1885
Abstract Many of the poisonous alkaloids give no distinctive chemical reactions by which they can be identified, and in certain cases the means of recognising them are restricted to observations on their crystalline form and physiological action. Some of the alkaloids have never been crystallised, and even such as are usually obtained
openaire   +2 more sources

Epigenetic silencing of the liver‐specific lncRNA LUNAR promotes liver cancer progression via NOTCH activation

Molecular Oncology, EarlyView.
LUNAR is a liver‐specific long noncoding RNA (lncRNA) that is highly expressed in normal liver but becomes epigenetically silenced in hepatocellular carcinoma through promoter hypermethylation. Loss of LUNAR is associated with NOTCH activation, epithelial–mesenchymal transition, and metastasis, whereas restoring LUNAR restrains metastatic progression ...
Se Ha Jang, Hyung Seok Kim, Geum Ok Baek, Moon Gyeong Yoon, Su In Lee, Jee‐Yeong Jeong, Ji Eun Han, Soon Sun Kim, Jae Youn Cheong, Jung Woo Eun   +9 more
wiley   +1 more source

Raman‐based label‐free microscopic analysis of the pancreas in living zebrafish larvae

FEBS Open Bio, EarlyView.
Forward stimulated Raman scattering (F‐SRS) and epi coherent anti‐Stokes Raman scattering (E‐CARS) allow label‐free discrimination of distinct subcellular structures in the pancreas of living zebrafish larvae. Given the straightforward applicability, we anticipate broad implementation of Raman microscopy in other organs and across various biomedical ...
Noura Faraj, Eline M. F. de Lange, Klaas A. Sjollema, Ben N. G. Giepmans   +3 more
wiley   +1 more source

Plant phenolics and absorption features in vegetation reflectance spectra near 1.66 μm

International Journal of Applied Earth Observation and Geoinformation, 2015
Past laboratory and field studies have quantified phenolic substances in vegetative matter from reflectance measurements for understanding plant response to herbivores and insect predation.
R. Kokaly, A. Skidmore
semanticscholar   +1 more source

Polarization‐resolved femtosecond Vis/IR spectroscopy tailored for resolving weak signals in biological samples using minimal sample volume

FEBS Open Bio, EarlyView.
Unique biological samples, such as site‐specific mutant proteins, are available only in limited quantities. Here, we present a polarization‐resolved transient infrared spectroscopy setup with referencing to improve signal‐to‐noise tailored towards tracing small signals. We provide an overview of characterizing the excitation conditions for polarization‐
Clark Zahn, Karsten Heyne
wiley   +1 more source

ABSORPTION AND FLUORESCENCE SPECTRA OF FLAVONES

, 1956
Absorption and fluorescence spectra of 4'-methoxyflavones with methyl and benzoyl substitutions and 4'-benzyloxyflavones with methyl and methoxy substitutions are reported and discussed. Additional resonance due to a 4'-methoxy group in flavones results in a red-shift of the flavone spectrum. Introduction of methyl groups produces a slight bathochromic
S. K. K. JATKAR, B. N. MATTOO
openaire   +2 more sources

A light‐triggered Time‐Resolved X‐ray Solution Scattering (TR‐XSS) workflow with application to protein conformational dynamics

FEBS Open Bio, EarlyView.
Time‐resolved X‐ray solution scattering captures how proteins change shape in real time under near‐native conditions. This article presents a practical workflow for light‐triggered TR‐XSS experiments, from data collection to structural refinement. Using a calcium‐transporting membrane protein as an example, the approach can be broadly applied to study ...
Fatemeh Sabzian‐Molaei, Fredrik Orädd, Konstantinos Magkakis, Magnus Andersson   +3 more
wiley   +1 more source