Results 41 to 50 of about 2,736,319 (288)

Highly selective and sensitive colorimetric chemosensor using PVA/chitosan ion-imprinted nanofibers for copper ion detection and removal

open access: yesHeliyon
Herein, a highly efficient colorimetric chemosensor incorporating ion-imprinted electrospun nanofiber was developed for the removal and detection of Cu2+ ions. In this regard, PVA/chitosan composites were used as the polymeric matrix, and 1-(2-pyridylazo)
Nargess Yousefi-Limaee   +2 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

open access: yesFEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto   +3 more
wiley   +1 more source

Munsell soil color charts

open access: yes, 2009
[30] p.Las Munsell Soil Color Charts constituyen un método para evaluar el tipo de suelo presente en una zona determinada. El libro está diseñado de manera que permite a los usuarios evaluar el color del suelo en terreno de manera rápida y sencilla.

core   +1 more source

Estimation of dye concentration by using Kubelka–Munk and Allen–Goldfinger reflective models: comparing the performance

open access: yesScientific Reports, 2023
If the relationship between the reflectance function (K/S) and dye concentration (C) is known, the color of the dyed textile (R∞) and C could be predicted from each other.
Mahdi Safi, Seyed Hossein Amirshahi
doaj   +1 more source

Cross-species differences in color categorization [PDF]

open access: yes, 2006
International audienceBerlin and Kay (1969) found systematic restrictions in the color terms of the world's languages and were inclined to look to the primate visual system for their origin.
Davidoff, Jules B.   +10 more
core   +1 more source

Modelling stem cell differentiation related processes—A practical overview for biologists

open access: yesFEBS Letters, EarlyView.
Stem cell differentiation is complex and difficult to control experimentally. This review introduces suitable computational modelling approaches that can support stem cell research, from mechanistic ODE and abstract models to multiscale and deep learning methods.
Ricco Zeegelaar   +4 more
wiley   +1 more source

Color face recognition using quaternion PCA [PDF]

open access: yes, 2011
Recently, biometric systems have attracted the attention of both academic and industrial communities. Advances in hardware and software technologies have paved the way to such growing interest.
Jaha, Emad Sami, Lahouari, Ghouti
core   +2 more sources

Die uitbeelding van die vroulike rol in advertensies in Suid-Afrikaanse vrouelydskrifte

open access: yesCommunicare, 2022
In South Africa there is growing concern regarding the manner in which women are portrayed in advertisements. Up to now no studies have been undertaken in support or otherwise of this concern.
Angela Petersen
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

open access: yesFEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang   +4 more
wiley   +1 more source

The cascade of social determinants in producing chronic disease in low-income African-American men

open access: yesInternational Journal of Qualitative Studies on Health & Well-Being, 2018
Purpose: There is a dearth of effective, evidence-based programs to reduce chronic disease in low-income African-American men. We report on the results of formative research in the National Institutes of Health (NIH)-funded MOCHA Moving Forward project ...
David Buchanan   +3 more
doaj   +1 more source

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