Results 31 to 40 of about 23,550 (219)

The Effect of Polyphenolics in Extracts from Natural Materials on Metabolic Activity of Metastatic Melanoma WM-266-4 Cells

open access: yesApplied Sciences, 2020
The importance of natural crops in medicine and pharmacy is growing. Beside bioactive compounds used directly as therapeutic agents, there are also raw materials used for drug synthesis or as a basic model for new biologically active compounds.
Taja Žitek   +5 more
doaj   +1 more source

Intoxicações em eqüinos no Brasil Intoxications in horses in Brazil

open access: yesCiência Rural, 1998
Relatam-se algumas intoxicações descritas em eqüídeos no Brasil. Dentre as intoxicações por plantas, incluem-se: Senecio spp., Ateleia glazioviana, Crotalaria juncea, Equisetum spp., Pteridium aquilinum, Baccharis coridifolia, Senna occidentalis e ...
Franklin Riet-Correa   +2 more
doaj   +1 more source

Forbs in Viking lands: the effect of disturbing dominant graminoids on recruitment in tundra grasslands

open access: yesOikos, EarlyView.
Grasslands, by definition, are dominated by graminoids. Nevertheless, forbs also make up a substantial part of vascular plant diversity in grasslands and are important resources of mammalian herbivores. However, forb recruitment is constrained by successful dominant graminoids, limiting access to safe sites for germination.
Gerardo Celis   +5 more
wiley   +1 more source

Use of different types of extracts as biostimulators in organic agriculture [PDF]

open access: yesActa Agriculturae Serbica, 2019
This paper presents the results of the analysis of extracts obtained from: Thymus serpyllum L., Urtica dioica L., Equisetum arvense L. and Achillea millefolium L.
Đurić Milena   +5 more
doaj  

The ultrastructure of epidermal surface of stem and branch internods and spores of horsetails of subgenus Equisetum (Equisetum L., Equisetaceae)

open access: yesTurczaninowia, 2016
Ultrastructure of epidermal surface of stems and branches internodes of 5 species and 3 interspecific hybrids were studied using scanning electron microscopy, as well as spore surface of 5 species of horsetail subgenus Equisetum (Equisetum, Equisetaceae):
D. S. Feoktistov, I. I. Gureyeva
doaj   +1 more source

Micro‐habitat selection by boreal woodland caribou improves access to food

open access: yesWildlife Biology, EarlyView.
Bio‐logging sensors attached to radiotelemetry receivers have great potential to transform our understanding of the ecological, physiological, and energetic constraints that shape patterns of wildlife movement under field conditions. We used video camera collars to assess microhabitat selectivity by woodland caribou Rangifer tarandus in boreal forests ...
Ian D. Thompson   +8 more
wiley   +1 more source

In Vitro Antioxidant, Antitumor and Photocatalytic Activities of Silver Nanoparticles Synthesized Using Equisetum Species: A Green Approach

open access: yesMolecules, 2021
The ethanolic extracts of three Equisetum species (E. pratense Ehrh., E. sylvaticum L. and E. telmateia Ehrh.) were used to reduce silver ions to silver nanoparticles (AgNPs).
Denisa Batir-Marin   +9 more
doaj   +1 more source

Comparative patterns of winter habitat use by muskoxen and caribou in northern Alaska [PDF]

open access: yes, 1992
Thesis (M.S.) University of Alaska Fairbanks, 1992Snow depth and hardness strongly influenced selection of feeding zones, (i.e., those areas used for foraging), in late winter by both muskoxen (Ovibos moschatus) and caribou (Rangifer tarandus grand) in ...
Biddlecomb, Mark Edward
core  

Sustainable dyeing of silk with curled dock (Rumex crispus) extract for trace element removal, ultraviolet protection, antimicrobial and anti‐oxidant activity

open access: yesColoration Technology, EarlyView.
Abstract This study investigated the dyeability and functionality of silk dyed with curled dock leaf extract. The effects of sugar content and turbidity in the extracted dye solution on dyeing were analysed, along with K/S values and colour fastness, under varying temperatures and times.
Youngmi Park
wiley   +1 more source

MP 2012-01 [PDF]

open access: yes, 2012
In 1994 the University of Alaska Fairbanks, School of Natural Resources and Agricultural Sciences, Agricultural and Forestry Experiment Station began a project to establish permanent sample plots (PSP) throughout the forests of northern and ...
Liang, JingJing   +2 more
core  

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