Results 21 to 30 of about 34,142 (263)

Substrate Specificity of Chlorophyllase [PDF]

open access: yesPlant Physiology, 1975
Apparent Km and V(max) values were obtained for hydrolysis of methyl and ethyl chlorophyllides a, methyl and ethyl pheophorbide a, and 9-hydroxymethyl pheophorbide a by chlorophyllase from Ailanthus altissima. Analysis of substrate specificity data for chlorophyllase indicates that the presence of a 9-keto group and a methyl alcohol group esterified at
openaire   +2 more sources

Design and Realization of Band Pass Filter in K-Band Frequency for Short Range Radar Application

open access: yesJurnal Elektronika dan Telekomunikasi, 2021
Short range radar (SRR) uses the K-band frequency range in its application. The radar requires high-resolution, so the applied frequency is 1 GHz wide.
Arie Setiawan   +10 more
doaj   +1 more source

Propofol impairs specification of retinal cell types in zebrafish by inhibiting Zisp-mediated Noggin-1 palmitoylation and trafficking

open access: yesStem Cell Research & Therapy, 2021
Background Propofol can have adverse effects on developing neurons, leading to cognitive disorders, but the mechanism of such an effect remains elusive.
Xiaoqing Fan   +6 more
doaj   +1 more source

Brain Shock—Toward Pathophysiologic Phenotyping in Traumatic Brain Injury

open access: yesCritical Care Explorations, 2022
Severe traumatic brain injury (TBI) is a heterogeneous pathophysiologic entity where multiple interacting mechanisms are operating. This viewpoint offers an emerging, clinically actionable understanding of the pathophysiologic heterogeneity and ...
Christos Lazaridis, MD, EDIC
doaj   +1 more source

Analysis of Black Line Defects in Hot-dip Al-Zn Sheets [PDF]

open access: yesCailiao Baohu
In order to identify the causes of black line defects in thin specification hot-dip Al-Zn sheets, a ZEISS Merlin Compact field emission scanning electron microscope (SEM) and an attached OXFORD X-max N type energy spectrometer were utilized to analyze ...
XU Mingwen, SUN Chaoyong, GAO Shiwei, LI Jian, LIU Xiaohua, YAO Ying
doaj   +1 more source

Design and Optimization of an S-Band MEMS Bandpass Filter Based on Aggressive Space Mapping

open access: yesMicromachines, 2022
Aggressive space mapping (ASM) is a common filter simulation and debugging method. It plays an important role in the field of microwave device design. This paper introduces ASM and presents the design and fabrication of a compact fifth-order microstrip ...
Qiannan Wu   +4 more
doaj   +1 more source

Plant Type Suitable for Mechanized Transplanting of Broccoli in Ningxia

open access: yesAgronomy
To improve the mechanized transplanting efficiency for large-scale broccoli production in Ningxia, this study aims to identify key morphological traits of seedlings suitable for mechanized transplanting.
Xulu Wang   +5 more
doaj   +1 more source

The Substrate and Anomeric Specificity of Fructokinase

open access: yesJournal of Biological Chemistry, 1973
Abstract Fructokinase from beef liver is shown to be specific for the β-furanose anomer of d-fructose (and the α anomer of l-sorbose) by showing that certain 2,5-anhydroalditols are substrates, while other 2,5-anhydro compounds, 2,6-anhydro-d-mannitol, and 2,6-anhydro-d-glucitol are not.
F M, Raushel, W W, Cleland
openaire   +2 more sources

Engineering peptides into antibodies—opportunities and strategies for therapeutic innovation

open access: yesFEBS Letters, EarlyView.
Peptides and antibodies occupy complementary therapeutic niches. Peptides recognize difficult targets in a compact format, while antibodies add specificity, long half‐life, and effector functions. This review examines strategies that merge both modalities—peptide grafting into loops, terminal and Fc fusions, and bioconjugation—highlighting how ...
Jinling Wang   +2 more
wiley   +1 more source

Epigenetic reprogramming of lineage switching in cancer

open access: yesFEBS Letters, EarlyView.
Cancer cells rarely commit to a single identity. Epigenetic mechanisms and tumor microenvironment cues push epithelial cells toward flexible, hybrid states that can shift into mesenchymal, neuroendocrine, or stem‐like fates, driving metastasis, drug resistance, and tumor heterogeneity. Targeting the epigenetic regulators behind these transitions, using
Ezgi Boyvatlı   +4 more
wiley   +1 more source

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