Results 61 to 70 of about 206,369 (305)

DEMONSTRATION OF HETEROARYLMETHANE OXIDATION IN A BENZIMIDAZOLE DERIVATIVE WITH THE USE OF UV SPECTROPHOTOMETRY AND X-RAY DIFFRACTION

open access: yesScientific Study & Research: Chemistry & Chemical Engineering, Biotechnology, Food Industry, 2012
In this work, we present the synthesis of a copper complex of 1-benzyl-2-[(5-methyl-isoxazol-3-yl)methyl]-benzimidazole, by using simultaneously UV spectrophotometry and X-ray diffraction. It has been possible for us to highlight an original oxidation of
Amal Haoudi   +6 more
doaj  

Geochemical Controls on Release and Speciation of Fe(II) and Mn(II) From Hyporheic Sediments of East River, Colorado

open access: yesFrontiers in Water, 2020
Hyporheic zones act as critical ecological links between terrestrial and aquatic systems where redox-sensitive metals of iron (Fe) and manganese (Mn) significantly impact nutrient cycling and water quality.
Wenming Dong   +7 more
doaj   +1 more source

Electrostatic colloid-membrane complexation

open access: yes, 2003
We investigate numerically and on the scaling level the adsorption of a charged colloid on an oppositely charged flexible membrane. We show that the long ranged character of the electrostatic interaction leads to a wrapping reentrance of the complex as ...
Ahearn A.   +8 more
core   +1 more source

Crown Ether-Modified Clays and their Polystyrene Nanocomposites [PDF]

open access: yes, 2002
Crown ether-modified clays were obtained by the combination of sodium and potassium clays with crown ethers and cryptands. Polystyrene nanocomposites were prepared by bulk polymerization in the presence of these clays.
Jao, Hongyang   +3 more
core   +2 more sources

Simplicial Complexes are Game Complexes [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2019
Strong placement games (SP-games) are a class of combinatorial games whose structure allows one to describe the game via simplicial complexes. A natural question is whether well-known parameters of combinatorial games, such as "game value", appear as invariants of the simplicial complexes. This paper is the first step in that direction.
Faridi, Sara   +2 more
openaire   +3 more sources

Evaluating the Utility of Paired Tumor and Germline Targeted DNA Sequencing for Pediatric Oncology Patients: A Single Institution Report

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Objective To evaluate the diagnostic yield and utility of universal paired tumor–normal multigene panel sequencing in newly diagnosed pediatric solid and central nervous system (CNS) tumor patients and to compare the detection of germline pathogenic/likely pathogenic variants (PV/LPVs) against established clinical referral criteria for cancer ...
Natalie Waligorski   +9 more
wiley   +1 more source

Positive allosteric binding behavior of pyrene-appended triazole-modified thiacalix[4]arene-based fluorescent receptors [PDF]

open access: yes, 2014
The novel heteroditopic receptors 5a∼c have been synthesized, which bear a thiacalix[4]arene in the 1,3-alternate conformation. Two urea moieties possessing various aryl groups with either electron-donating or -withdrawing groups at their p-positions ...
Ni, Xin-Long   +5 more
core   +2 more sources

Space Complexity vs. Query Complexity [PDF]

open access: yescomputational complexity, 2006
Combinatorial property testing deals with the following relaxation of decision problems: Given a fixed property and an input x, one wants to decide whether x satisfies the property or is “far” from satisfying it. The main focus of property testing is in identifying large families of properties that can be tested with a certain number of queries to the ...
Oded Lachish, Ilan Newman, Asaf Shapira
openaire   +1 more source

Outcomes of Live Virus Vaccination in Patients With Vascular Anomalies Being Treated With Sirolimus

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Live vaccination in patients with vascular anomalies (VA) receiving sirolimus remains controversial due to immunosuppressive effects and theoretical risks. Procedure This single‐center retrospective study included patients with VA less than 4 years old at the start of sirolimus therapy who were incompletely vaccinated.
Svatava Merkle   +5 more
wiley   +1 more source

Straightforward synthesis of gold nanoparticles by adding water to an engineered small dendrimer

open access: yesBeilstein Journal of Nanotechnology, 2020
A small water-soluble phosphorus-containing dendrimer was engineered for the complexation of gold(I) and for its reduction under mild conditions. Gold nanoparticles were obtained as colloidal suspensions simply and only when the powdered form of this ...
Sébastien Gottis   +3 more
doaj   +1 more source

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