Results 41 to 50 of about 5,257,958 (296)

Plant Functional Dispersion, Vulnerability and Originality Increase Arthropod Functions from a Protected Mountain Mediterranean Area in Spring

open access: yesPlants, 2023
Plant diversity often contributes to the shape of arthropod communities, which in turn supply important ecosystem services. However, the current biodiversity loss scenario, particularly worrying for arthropods, constitutes a threat for sustainability ...
Bruno Calheiros-Nogueira   +2 more
doaj   +1 more source

Synthesis of diversely functionalised 2,2-disubstituted oxetanes: fragment motifs in new chemical space [PDF]

open access: yes, 2015
Novel oxetane motifs incorporating diverse functional groups on the ring are readily accessed by an O–H insertion/cyclisation strategy.
Bull, JA, Croft, RA, Davis, OA
core   +1 more source

Effect of Gamma Irradiation (Cesium-137) on the Properties of Chemical Functional Groups from Collagen Extraction of Snakehead Fish Scales (Channa striata)

open access: yesJurnal Fisika Flux
This study aims to determine the absorption spectrum of the functional groups of snakehead fish scale collagen before irradiation and the effect of the dose of Cesium-137 irradiation on the functional groups in snakehead fish scale collagen.
Andi Tasya Ferdianti   +5 more
doaj   +1 more source

A study of extraction and characterization of alginates obtained from brown macroalgae Sargassum duplicatum and Sargassum crassifolium from Indonesia

open access: yesDental Journal, 2013
Background: Worldwide commercially available alginate have been used for tissue engineering purposes. The macroalgae Sargassum obtained from Indonesia have been used for various purposes, however, they have not been applied for tissue engineering ...
Decky J. Indrani, Emil Budianto
doaj   +1 more source

Functional calculus for $C_{0}$-groups using (co)type

open access: yes, 2018
We study the functional calculus properties of generators of $C_{0}$-groups under type and cotype assumptions on the underlying Banach space. In particular, we show the following. Let $-iA$ generate a $C_{0}$-group on a Banach space $X$ with type $p\in[
Rozendaal, Jan
core   +1 more source

A New Alkylation of Aryl Alcohols by Boron Trifluoride Etherate

open access: yesMolecules, 2019
The ethylation of aryl alcohols by an ethyl moiety of boron trifluoride etherate is described. The reaction proceeded cleanly and afforded good yields of the corresponding aryl ethyl ethers.
Ndze Denis Jumbam   +5 more
doaj   +1 more source

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Extraction of Collagen from Kedukang Fish Bone (Hexanematichthys sagor) at Various Concentrations of Acetic Acid Solution

open access: yesGrouper
The bones of kedukang fish, a by-product of jambal roti production in Pangandaran, have the potential to be a source of collagen. Collagen extraction can be done chemically using acetic acid solution.
Veronica Veronica   +3 more
doaj   +1 more source

Towards a universal sampling protocol for soil biotas in the humid tropics Em direção a um protocolo universal de amostragem de biotas do solo nos trópicos úmidos

open access: yesPesquisa Agropecuária Brasileira, 2009
This paper reviews the methods for the inventory of below-ground biotas in the humid tropics, to document the (hypothesized) loss of soil biodiversity associated with deforestation and agricultural intensification at forest margins.
David Edward Bignell
doaj   +1 more source

Reversible Tuning of the Wettability of Carbon Nanotube Arrays: The Effect of Ultraviolet/Ozone and Vacuum Pyrolysis Treatments [PDF]

open access: yes, 2011
Among diverse types of synthetic materials, arrays of vertically aligned carbon nanotubes have attracted the most attention, mainly because of their exceptional mechanical, electrical, optical, and thermal properties.
Aria, Adrianus I., Gharib, Morteza
core   +2 more sources

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