Results 41 to 50 of about 190,317 (302)

Probing Lepton Flavour Universality with $K \to \pi \nu \bar\nu$ decays [PDF]

open access: yes, 2017
We analyse the rare processes $K \to \pi\nu\bar\nu$ in view of the recent hints of violations of Lepton Flavour Universality (LFU) observed in B meson decays.
Bordone, Marzia   +3 more
core   +2 more sources

Study of cascade ring-closing metathesis reactions en route to an advanced intermediate of Taxol [PDF]

open access: yes, 2016
A highly functionalized intermediate in the synthesis of Taxol has been synthesized, which features the tricyclic core and the required oxygen substituents at C1, C2, C7, C10 and C13. The key step, a ring-closing dienyne metathesis (RCDEYM) reaction, has
Letort, Aurélien   +2 more
core   +1 more source

Chiral Heptagon‐Embedded Double [6]Helicenes via Scholl Reaction

open access: yesAngewandte Chemie, EarlyView.
One bond makes the difference–two chiral and twisted polycyclic aromatic hydrocarbons (PAHs) show different emission behavior. The more flexible one (top) shows a double emission with one having a large anti‐Stokes shift. The two peaks are assigned to different conformers of one and the same compound.
Dan Wang   +6 more
wiley   +2 more sources

A study of digital transformation and MSMEs performance from a spatial perspective: Evidence from China

open access: yesJournal of Economics and Management, 2023
Aim/purpose – Not only have micro, small, and medium enterprises (MSMEs) been regarded as a driving force of the national economy, but they have also become important in promoting innovation and entrepreneurship.
Zheng Bing   +3 more
doaj   +1 more source

Dimethyl 2,2'-[butane-1,4-diylbis(sul­fanediyl)]dibenzoate [PDF]

open access: yes, 2009
The title compound, C20H22O4S2, was synthesized by the reaction of 1,4-dibromo­butene with methyl thio­salicylate. The aliphatic segment of this ligand is in an all-trans conformation. The bridging chain, –S-(CH2)4-S–, is almost planar (r.m.s.
Brito, Iván   +4 more
core   +1 more source

Econometric Support of a Mass Valuation Process

open access: yesFolia Oeconomica Stetinensia, 2020
Research background: The issues undertaken in the paper include the specification of an econometric model in real estate mass appraisal. Advantages and disadvantages of using econometric models in real estate mass appraisal are discussed.
Doszyń Mariusz
doaj   +1 more source

Heavy-flavor azimuthal correlations of D mesons

open access: yes, 2013
Observables of heavy-quark azimuthal correlations in heavy-ion collisions are a new and promising tool for the investigation of the in-medium energy loss.
Aichelin, Jörg   +3 more
core   +3 more sources

Training and Interpreting Machine Learning Models: Application in Property Tax Assessment

open access: yesReal Estate Management and Valuation, 2022
In contrast to the outstanding performance of the machine learning approach, its adoption in industry appears to be relatively slow compared to the speed of its proliferation in a variety of business sectors.
Lee Changro
doaj   +1 more source

THE BIOSYNTHESIS OF C13 COMPOUNDS [PDF]

open access: yesJournal of General Physiology, 1947
1. Starch, containing 7.05 atom per cent C13 excess has been produced in the mesophyll cells of bean leaves, starting with C13O2 containing 7.26 atom per cent C13 excess. Approximately 67 per cent of the C13 taken up by the leaves was determined in the starch fraction. 2. The soluble carbohydrate, containing 6.72 atom per cent C13 excess,
L. G. Livingston, Grace Medes
openaire   +1 more source

FORMULATION AND PHYSICOCHEMICAL STABILITY OF 20% GLYCOLIC ACID CREAMS USING POLYACRYLAMIDE, C13-14 ISOPARAFFIN, LAURETH-7 AND COMBINATION OF POLYACRYLAMIDE, C13-14 ISOPARAFFIN, LAURETH 7 WITH A GLUKOLIPID OF VEGETABLE ORIGIN [PDF]

open access: yes, 2011
Glycolic acid is a α-hydroxy acids (AHAs). It are used in skin lightening creams. It were developed formulation of 20% glycolic acid creams. The creams were made using 4% of polyacrylamide, C13-14 isoparaffin, laureth-7 as a thickening agent for cream ...
Aryani, Ni Luh Dewi   +3 more
core  

Home - About - Disclaimer - Privacy