Results 31 to 40 of about 1,149,747 (305)

The Pipid Root [PDF]

open access: yesSystematic Biology, 2012
The estimation of phylogenetic relationships is an essential component of understanding evolution. Accurate phylogenetic estimation is difficult, however, when internodes are short and old, when genealogical discordance is common due to large ancestral effective population sizes or ancestral population structure, and when homoplasy is prevalent ...
Bewick, A.   +3 more
openaire   +3 more sources

Physiological changes of three woody plants exposed to progressive salt stress

open access: yesPhotosynthetica, 2021
The saline character of water imposes restrictions on plant growth and survival in the Taklamakan Desert, China. Experiments were conducted on woody plant species, Tamarix ramosissima, Populus euphratica, and Haloxylon ammodendron grown under different ...
Y. LU, F.J. ZENG, X.Y. LI, B. ZHANG
doaj   +1 more source

The ROOTS Constraint [PDF]

open access: yes, 2006
A wide range of counting and occurrence constraints can be specified with just two global primitives: the Range constraint, which computes the range of values used by a sequence of variables, and the Roots constraint, which computes the variables mapping onto a set of values. We focus here on the Roots constraint.
Christian Bessiere   +4 more
openaire   +3 more sources

Taro Roots: An Underexploited Root Crop

open access: yesNutrients, 2023
Taro (Colocasia esculenta) is a root crop that remains largely underutilized and undervalued despite its abundance and affordability. In comparison to other root vegetables, such as potatoes, yams, carrots, and cassava, taro stands out as a plentiful and low-cost option.
Md. Jannatul Ferdaus   +3 more
openaire   +2 more sources

YAP/TAZ at the roots of cancer

open access: yesCancer Cell, 2016
Summary YAP and TAZ are highly related transcriptional regulators pervasively activated in human malignancies. Recent work indicates that, remarkably, YAP/TAZ are essential for cancer initiation or growth of most solid tumors.
F. Zanconato, M. Cordenonsi, S. Piccolo
semanticscholar   +1 more source

Root Hairs [PDF]

open access: yesThe Arabidopsis Book, 2014
Roots hairs are cylindrical extensions of root epidermal cells that are important for acquisition of nutrients, microbe interactions, and plant anchorage. The molecular mechanisms involved in the specification, differentiation, and physiology of root hairs in Arabidopsis are reviewed here.
Grierson, C.   +3 more
openaire   +3 more sources

Large-girth roots of graphs [PDF]

open access: yes, 2010
We study the problem of recognizing graph powers and computing roots of graphs. Our focus is on classes of graphs with no short cycles. We provide a polynomial time recognition algorithm for r-th powers of graphs of girth at least 2r vertical bar 3, thus
Adamaszek, Michal   +4 more
core   +1 more source

What do local foods consumers want?

open access: yesJournal of Agriculture, Food Systems, and Community Development, 2022
The local foods movement is now firmly en­trenched in the public imagination and as a feature of the larger food economy. With the most recent wave of local food retail markets now in its second decade, scholarly attention has turned to the fac­tors that
Matthew Mariola   +2 more
doaj   +1 more source

Root Vertex Valency Distributions of Rooted Maps and Rooted Triangulations

open access: yesEuropean Journal of Combinatorics, 1994
We obtain the asymptotic distributions of root vertex valencies for rooted maps and rooted triangulations on general surfaces. We show that the asymptotic distributions are independent of the surface.
Zhicheng Gao, L. Bruce Richmond
openaire   +3 more sources

Water contamination issues in Estonia: a review; pp. 304–316 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2016
This article deals with the analytical results of environmental monitoring and screening performed on the identification and sources of hazardous substances in the Estonian aquatic environment. The concentrations of hazardous substances have been studied
Ott Roots, Tiit Lukki
doaj   +1 more source

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