Results 61 to 70 of about 633,466 (262)

Seleção de bacillus spp. para produção de esterases e melhoramento de bacillus cereus (c124) Selection of bacillus spp. For esterase production and genetic improvement of bacillus cereus (c124)

Brazilian Archives of Biology and Technology, 1998
Forty-four Bacillus spp. strains obtained from sugar cane derivates and residues, six of them isolated in this work, were tested using Tween 80 as substrate (agar-Tween 80 medium), in order to determine their esterase activity through the enzymatic index
Analucia Longman Mendonça, Rosa de Lima Ramos Mariano, Janete Magali de Araújo, Uided Maaze T. Cavalcante   +3 more
doaj   +1 more source

Transverse Load Discrimination in Long-Period Fiber Grating via Artificial Neural Network

Journal of Microwaves, Optoelectronics and Electromagnetic Applications, 2020
We present a general investigation of a Long-Period Grating (LPG) for transverse strain measurement. The transverse strain sensing characteristics, for instance, the load intensity and azimuthal angle, are analyzed with the data set generated by the LPG ...
F. O. Barino, F. S. Delgado, A. Bessa dos Santos   +2 more
doaj   +1 more source

Long‐term hippocampal alterations and cognitive impairment in a murine model of surgical sepsis

FEBS Open Bio, EarlyView.
Using a mouse model of surgical sepsis, we tested long‐term memory and analyzed the transcriptome of single cells isolated from the hippocampus. Survivor mice showed worse memory, loss of certain brain cell subpopulations, and abnormal immune cell activity—suggesting that post‐sepsis brain alterations may be linked to cognitive deficits.
Dong Seong Cho, Rebecca Schmitt, Aneesha Dasgupta, Alexandra Ducharme, Jason Doles   +4 more
wiley   +1 more source

The origin of edge-enhanced second harmonic generation in monolayer MoS2 flakes

AIP Advances, 2022
The sensitiveness of second-harmonic generation (SHG) signal to crystal lattice orientation and crystal symmetry makes it a powerful tool for structural characterization of low dimensional transition metal dichalcogenide (TMD) materials.
Man-Hong Lai, Wei-Liang Chen, Chao-Yuan Lo, Jia-Ru Yu, Po-Wen Tang, Chi Chen, Yu-Ming Chang   +6 more
doaj   +1 more source

Optimizing photoactivation of PA‐mCherry for optical pooled CRISPR screens

FEBS Open Bio, EarlyView.
Photoactivatable PA‐mCherry finds widespread use to optically tag individual cells. However, confocal 405 nm UV laser‐scanning (normal scan) is much less efficient than widefield UV illumination, limiting the use of PA‐mCherry on confocal instruments. We remedy this limitation by reporting that rapid and repeated confocal scanning with a low‐intensity,
Sravasti Mukherjee, Giulia Zanetti, Bram van den Broek, Kees Jalink   +3 more
wiley   +1 more source

Strain Sensing in Cantilever Beams Using a Tapered PMF with Embedded Optical Modulation Region

Photonics
This paper presents the design of a strain-sensitive, dual ball-shaped tunable zone (DBT) taper structure for light intensity modulation. Unlike conventional tapered optical fibers, the DBT incorporates a central light field modulation zone within the ...
Xiaopeng Han, Xiaobin Bi, Yundong Zhang, Fan Wang, Siyu Lin, Wuliji Hasi, Chen Wang, Xueheng Yan   +7 more
doaj   +1 more source

Texture evaluation in warm deformation of an extruded Mg–6Al–3Zn alloy

Journal of Magnesium and Alloys, 2016
To assess the effect of strain and strain rate on texture evolution of an extruded Mg–6Al–3Zn alloy, compression tests were carried out. Samples were prepared in the extrusion direction (ED) and normal direction (ND). The compression tests were performed
M. Kavyani, G.R. Ebrahimi, M. Sanjari, M. Haghshenas   +3 more
doaj   +1 more source

Acute caffeine treatment protects the developing retina from ischemia‐induced cell death

FEBS Open Bio, EarlyView.
Caffeine reduces cell death in the developing retina under ischemia (OGD). This effect does not involve BDNF upregulation or antioxidant pathways (NRF2/VEGF). Neuroprotection occurs mainly through adenosine A2A receptor antagonism, decreasing glutamate release and excitotoxicity, highlighting caffeine's potential as an acute neuroprotective agent in ...
Amanda Alves Nascimento, Danniel Pereira‐Figueiredo, Gabriella Grossi de Lima Dias, Gabriel Ferreira dos Santos, Mariana Rodrigues Pereira, Rafael Brito, Karin C Calaza   +6 more
wiley   +1 more source

Light-Irradiation Wavelength and Intensity Changes Influence Aflatoxin Synthesis in Fungi

Toxins, 2018
Fungi respond to light irradiation by forming conidia and occasionally synthesizing mycotoxins. Several light wavelengths, such as blue and red, affect the latter.
Tadahiro Suzuki
doaj   +1 more source

A yeast model of 5‐oxoproline accumulation reveals a general toleration to 5‐oxoproline

FEBS Open Bio, EarlyView.
Using a yeast model, we show that even high accumulation of 5‐oxoproline causes only mild cellular stress and does not trigger oxidative stress. Instead, cells adapt by activating efflux pumps and diverse protective pathways, suggesting that previously proposed harmful effects of 5‐oxoproline may arise from indirect metabolic imbalances rather than the
Pratiksha Dubey, Vaishnavi Sanjayan, Praveen Singh, Shantanu Sengupta, Anand Kumar Bachhawat   +4 more
wiley   +1 more source