Results 131 to 140 of about 6,322,087 (352)

Direct and indirect blue light supplementation on growth, pigments, and gas exchange of young arugula plants

open access: yesNotulae Botanicae Horti Agrobotanici Cluj-Napoca
It is well-established that the blue (430-460 nm) portion of the visible light spectrum beneficially affects plants, primarily by modulating the relationship between photosynthesis and energy metabolism and promoting chlorophyll accumulation. This study
Paulo H.R. MELO   +9 more
doaj   +1 more source

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

On the photosynthetic responses of crops to intracanopy lighting with light emitting diodes

open access: yes, 2011
Key words: Cucumis sativus, intracanopy lighting, light-emitting diodes (LEDs), light distribution, light interception, light quality, photosynthesis, photosynthetic acclimation Assimilation lighting is a production factor of increasing importance in ...
Trouwborst, G.
core  

Effects of Blue Light on Ex-Vivo Human Skin and its Role in Clinical Therapy for the Treatment of Complex Wounds with Fluorescent Light Energy

open access: yes, 2023
reservedPresupposti dello studio. L'esposizione alla luce blu è inevitabile, dal momento che le fonti di tale luce sono sia naturali, principalmente la luce solare, sia artificiali, come i dispositivi elettronici, l'illuminazione fluorescente e i diodi ...
BONATO, ALBERTO
core  

Mycobacterial cell division arrest and smooth‐to‐rough envelope transition using CRISPRi‐mediated genetic repression systems

open access: yesFEBS Open Bio, EarlyView.
CRISPRI‐mediated gene silencing and phenotypic exploration in nontuberculous mycobacteria. In this Research Protocol, we describe approaches to control, monitor, and quantitatively assess CRISPRI‐mediated gene silencing in M. smegmatis and M. abscessus model organisms.
Vanessa Point   +7 more
wiley   +1 more source

Blue-Light-Induced Iron-Catalyzed α‑Alkylation of Ketones

open access: yes
We report a visible-light-induced iron-catalyzed α-alkylation of ketones. The photocatalytic system is based on the single diaminocyclopentadienone iron tricarbonyl complex.
Jean-Luc Renaud (1756909)   +4 more
core   +1 more source

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

open access: yesFEBS 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

Occupational exposure limits for blue light in welding environments: Based on ICNIRP guidelines and human eye imaging principles

open access: yes环境与职业医学
BackgroundBlue light, as an occupational hazard, is widely present in welding and related work environments. However, China's occupational health standard system has not yet established any limit for blue light exposure in welding work environments ...
Jinglin SHANG, Kai ZHANG, Qing ZHOU
doaj   +1 more source

C2α‐carbanion‐protonating glutamate discloses tradeoffs between substrate accommodation and reaction rate in actinobacterial 2‐hydroxyacyl‐CoA lyase

open access: yesFEBS Open Bio, EarlyView.
Enzymes of the 2‐hydroxyacyl‐CoA lyase group catalyze the condensation of formyl‐CoA with aldehydes or ketones. Thus, by structural adaptation of active sites, practically any pharmaceutically and industrially important 2‐hydroxyacid could be biotechnologically synthesized. Combining crystal structure analysis, active site mutations and kinetic assays,
Michael Zahn   +4 more
wiley   +1 more source

Pulsing blue light through closed eyelids: effects on acute melatonin suppression and phase shifting of dim light melatonin onset

open access: yes, 2014
Mariana G Figueiro, Barbara Plitnick, Mark S Rea Lighting Research Center, Rensselaer Polytechnic Institute, Troy, NY, USA Abstract: Circadian rhythm disturbances parallel the increased prevalence of sleep disorders in older adults. Light therapies that
Rea MS, Plitnick B, Figueiro MG
core  

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