Results 11 to 20 of about 4,068,886 (304)

Characterization of a Reactive Rh2 Nitrenoid by Crystalline Matrix Isolation.

open access: yesJournal of the American Chemical Society, 2019
The fleeting lifetimes of reactive intermediates in C-H functionalization chemistry often prevent their direct characterization. For example, the critical nitrenoid intermediates that mediate Rh2-catalyzed C-H amination have eluded characterization for ...
Anuvab Das   +3 more
semanticscholar   +1 more source

On the critical behaviour of hermitean f-matrix models in the double scaling limit with f >= 3 [PDF]

open access: yes, 1997
An algorithm for the isolation of any singularity of f-matrix models in the double scaling limit is presented. In particular it is proved by construction that only those universality classes exist that are known from 2-matrix models.Comment: 24 pages ...
Balaska, S., Maeder, J., Ruehl, W.
core   +4 more sources

Marked decline in forest-dependent small mammals following habitat loss and fragmentation in an Amazonian deforestation frontier [PDF]

open access: yes, 2020
Agricultural frontier expansion into the Amazon over the last four decades has created million hectares of fragmented forests. While many species undergo local extinctions within remaining forest patches, this may be compensated by native species from ...
Palmeirim, Ana Filipa   +2 more
core   +1 more source

Structures and Properties of trans‐1,3,3,3‐Tetrafluoro‐ propene (HFO‐1234ze) and 2,3,3,3‐Tetrafluoropropene (HFO‐1234yf) Refrigerants

open access: yesChemistryOpen, 2020
The refrigerant trans‐1,3,3,3‐tetrafluoropropene (HFO‐1234ze) is used as a replacement for former cooling agents that have been phased‐out due to their global warming potential or ozone depleting potential.
Dr. Jan Schwabedissen   +6 more
doaj   +1 more source

Complexes of Formaldehyde and α-Dicarbonyls with Hydroxylamine: FTIR Matrix Isolation and Theoretical Study

open access: yesMolecules, 2021
The interactions of formaldehyde (FA), glyoxal (Gly) and methylglyoxal (MGly) with hydroxylamine (HA) isolated in solid argon and nitrogen were studied using FTIR spectroscopy and ab initio methods.
Barbara Golec   +2 more
doaj   +1 more source

Complexes of Glycolic Acid with Nitrogen Isolated in Argon Matrices. II. Vibrational Overtone Excitations

open access: yesMolecules, 2019
Structural changes of glycolic acid (GA) complex with nitrogen induced by selective overtone excitation of the νOH mode were followed in argon matrices using FTIR spectroscopy.
Iwona Kosendiak   +4 more
doaj   +1 more source

Cluster-Based Improved Isolation Forest

open access: yesEntropy, 2022
Outlier detection is an important research direction in the field of data mining. Aiming at the problem of unstable detection results and low efficiency caused by randomly dividing features of the data set in the Isolation Forest algorithm in outlier ...
Chen Shao   +3 more
doaj   +1 more source

A matrix isolation and computational study of molecular palladium fluorides : does PdF₆ exist? [PDF]

open access: yes, 2016
Palladium atoms generated by thermal evaporation and laser ablation were reacted with and trapped in F₂ /Ar, F₂ /Ne, and neat F₂ matrices. The products were characterized by electronic absorption and infrared spectroscopy, together with relativistic ...
Andrews, Lester   +7 more
core   +2 more sources

Matrix-Bound Nanovesicles: The Effects of Isolation Method upon Yield, Purity, and Function

open access: yesTissue Engineering. Part C, Methods, 2020
Identification of matrix-bound nanovesicles (MBV) as ubiquitous components of the extracellular matrix (ECM) raises questions regarding their biologic functions and their potential theranostic application. Unlike liquid-phase extracellular vesicles (e.g.,
Lina M. Quijano   +9 more
semanticscholar   +1 more source

Early loss of blood-brain barrier integrity precedes NOX2 elevation in the prefrontal cortex of an animal model of psychosis [PDF]

open access: yes, 2016
The social isolation rearing of young adult rats is a model of psychosocial stress and provides a nonpharmacological tool to study alterations reminiscent of symptoms seen in psychosis.
Bove, Maria   +11 more
core   +4 more sources

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