Results 41 to 50 of about 10,186 (165)

Identification of a reliable fixative solution to preserve the complex architecture of bacterial biofilms for scanning electron microscopy evaluation.

open access: yesPLoS ONE, 2020
Bacterial biofilms are organized sessile communities of bacteria enclosed in extracellular polymeric substances (EPS). To analyze organization of bacteria and EPS in high resolution and high magnification by scanning electron microscopy (SEM), it is ...
Rohana P Dassanayake   +5 more
doaj   +1 more source

Inhomogeneity detection in phytoplankton time series using multivariate analyses

open access: yesOceanologia, 2020
Summary: Phytoplankton communities have long been used as water quality indicators within environmental policies. This has fostered the development of national and international phytoplankton monitoring programs, but these networks are subject to sources
Oihane Muñiz   +5 more
doaj   +1 more source

A cold bath for a formalin-free laboratory: alternative fixative methods in early developmental stages of the sea urchin Paracentrotus lividus (Lamarck, 1816)

open access: yesInvertebrate Survival Journal, 2021
Fixatives are widespread in biological and medical research because they allow preserving specimens for a long time. Historically, formaldehyde has been the most used fixative so far, but new solutions are needed because of its carcinogenicity.
A Cannavacciuolo, A Chiarore, M Munari
doaj   +1 more source

To Fix or Not to Fix, the Fix: Reassessing the Effectiveness of the 4pm Fix. A Pre-Registered Study

open access: yesPacific-Basin Finance Journal
This study critically re-evaluates the effectiveness of the WM/Refinitiv (WMR) methodology for Foreign Exchange (FX) benchmark rates following its revision in 2015. Through the use of proprietary high-frequency trading data provided by Refinitiv, the research assesses the representativeness, attainability, and robustness of the WMR 4 pm fix.
Benenchia, Matteo   +2 more
openaire   +1 more source

The penetration of methanol into bovine cardiac and hepatic tissues is faster than ethanol and formalin

open access: yesEuropean Journal of Histochemistry, 2018
Methanol, ethanol and formalin are commonly used as fixatives to preserve biological tissues from decay in the preparation of histological sections. Fixation of the inner layers of the tissue depends on the ability of the fixative to diffuse into the ...
Michelle Steicke   +7 more
doaj   +1 more source

Impact of Color Fixatives on the Quality and Flavor of Whole Mango Juice during High Temperature Sterilization [PDF]

open access: yesShipin Kexue
This study delved into the impacts of five color fixatives (β-cyclodextrin, citric acid, calcium chloride, phytic acid, and ascorbic acid) on the color and flavor attributes (taste and volatile compounds) of whole mango juice (WMJ) subjected to high ...
FANG Ruilin, DENG Lizhen, TIAN Yuqi, KE Yingying, DU Liqing, DAI Taotao, LIU Chengmei, CHEN Jun
doaj   +1 more source

Fixed points and homotopy fixed points

open access: yesCommentarii Mathematici Helvetici, 1988
Let G be a finite group, EG be a free contractible G-space, and define \(X^{hG}=Map_ G(EG,X)\) (equivariant mapping space). The main theorem of this paper proves that the following two statements are equivalent (Theorem A): (1) G is a p-group. (2) For every finite G-simplicial complex X, the fixed point set \(X^ G=\emptyset\) if and only if \(X^{hG ...
Zabrodsky, A., Dror Farjoun, E.
openaire   +1 more source

On Characterizations of Fixed and Common Fixed Points

open access: yesJournal of Mathematical Analysis and Applications, 1998
The authors introduce the concept of \(L\)-mapping which is equivalent to the concept of \(C\)-mapping introduced by \textit{S. Zhang} [Proc. Am. Math. Soc. 97, 343-346 (1986; Zbl 0593.54045)] and establish criteria for the existence of fixed points of \(L\)-mappings.
Liu, Zeqing, Xu, Yuguang, Cho, Yeol Je
openaire   +2 more sources

Contextual Physics Optics Lab Media Based on Deep Learning: Analysis of Clove Fixator Variations on Light Intensity Absorption on Colored Fabrics

open access: yesPendipa
This study aims to produce a contextual laboratory practice in optics by analyzing the variations of fixatives in clove natural dye on the absorption of sunlight by colored fabrics.
Maria Enjelina Suban   +2 more
doaj   +1 more source

Effect of fixative type and fixation time on the morphology of bovine preantral ovarian follicles
Efeito do tipo de fixador e tempo de fixação na morfologia de folículos pré-antrais ovarianos bovinos

open access: yesSemina: Ciências Agrárias, 2012
There are no efficient fixatives for histological analyses of ovarian tissue that permit an appropriate morphological analysis of ovary and their cells.
Rogerio Ferreira   +8 more
doaj   +1 more source

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