Results 91 to 100 of about 142,585 (257)

Chromosomes and phylogeny in Crepis, [PDF]

open access: yes, 1930
P6 ...
Babcock, E. B. (Ernest Brown), 1877-1954   +1 more
core   +2 more sources

Common fixed points for three or four mappings via common fixed point for two mappings [PDF]

open access: yesarXiv, 2013
In this paper, we shall show that some coincidence point and common fixed point results for three or four mappings could easily be obtained from the corresponding fixed point results for two mappings.
arxiv  

Fixed point indices and fixed words at infinity of selfmaps of graphs [PDF]

open access: yesarXiv, 2020
Indices of fixed point classes play a central role in Nielsen fixed point theory. Jiang-Wang-Zhang proved that for selfmaps of graphs and surfaces, the index of any fixed point class has an upper bound called its characteristic. In this paper, we study the difference between the index and the characteristic for selfmaps of graphs.
arxiv  

Effect of different fixatives and preservatives on phytoplankton counts [PDF]

open access: yes, 1979
Erilaisten säilöntäaineiden vaikutus kasviplanktonin ...
Hällfors, Guy   +3 more
core  

No Easy Fixes [PDF]

open access: yesNew England Journal of Medicine, 2013
Ms. D. has received 10 drug-eluting stents, primarily for atypical chest discomfort, with one stenting begetting another. In our system, it's somehow easier to provide 10 state-of-the-art stents than access to a generic pill and social, financial, and psychiatric support.
openaire   +3 more sources

Identifying the assembly pathway of cyanophage inside the marine bacterium using electron cryo-tomography

open access: yesMicrobial Cell, 2014
Advances in electron cryo-tomography open up a new avenue to visualize the 3-D internal structure of a single bacterium before and after its infection by bacteriophages in its native environment, without using chemical fixatives, fluorescent dyes or ...
Wei Dai   +3 more
doaj   +1 more source

On fixing sets of composition and corona product of graphs [PDF]

open access: yesarXiv, 2015
A fixing set $\mathcal{F}$ of a graph $G$ is a set of those vertices of the graph $G$ which when assigned distinct labels removes all the automorphisms from the graph except the trivial one. The fixing number of a graph $G$, denoted by $fix(G)$, is the smallest cardinality of a fixing set of $G$. In this paper, we study the fixing number of composition
arxiv  

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  

Etude comparative de la résistance à l’abrasion de trois fixatifs utilisés comme consolidant de techniques graphiques

open access: yesCeROArt : Conservation, Exposition, Restauration d'Objets d'Art, 2016
This study aimed to compare the abrasion resistance of three fixatives commonly used in restoration of graphic works as consolidating graphics techniques.
Anne Laure Gautier
doaj   +1 more source

Fixatives, Decalcifiers and Ultrastructure of the organic remnants from mural Nacreous Layers of Fossil Cephalopod Shells [PDF]

open access: yes, 1983
The ultrastructure of the organic remnants has been compared in the TEM, after decalcification of the mural nacre of ammonites and fossil nautiloids by EDTA, which removes a soluble fraction, and after fixation and decalcification by formaldehyde-cetyl ...
Goffinet, G.   +2 more
core  

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