Results 41 to 50 of about 177,820 (273)
1-Methyl-4-({5-[(4-methylphenyl)sulfanyl]pentyl}sulfanyl)benzene [PDF]
, 2009 There are two independent molecules in the asymmetric unit of the title compound, C19H24S2. In both molecules, the aliphatic segment of the ligand is in an all-trans conformation: the –S–(CH2)5–S–bridging chain is almost planar (r.m.s.
Brito, Iván +4 more
core +2 more sources
Halichondrin B: Synthesis of the C1−C22 Subunit [PDF]
The Journal of Organic Chemistry, 2005 [Reaction: see text]. Two efficient routes to the C1-C22 subunit of halichondrin B are described. The cage ketal 7, which contains 11 asymmetric centers embedded within the ABCDEF-ring framework, was assembled from (+)-conduritol E (27) in 18 steps and 4% overall yield. In a separate route, 7 was also synthesized in 18 steps and 2% overall yield from a
William T, Lambert +3 more
openaire +2 more sources
Renewable Energy, Environment and GDP in High-Income Countries: Evidence from Europe
Economics and Business, 2023 The research paper considers the dual role of renewable energy in achieving environmental safety and promoting economic growth. The ARDL methodology was applied to data collected from high-income countries in Europe in the period 1990–2020.The results ...
Boudiaf Hafid
doaj +1 more source
, 1959 Alaska 114 was formally released to the Alaska Certified Seed G rowers Association in 1954 although it had been field tested by a few members during the preceding year.
Dearborn, C.H.
core
Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires
Advanced Functional Materials, EarlyView.Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar +11 more
wiley +1 more source
Advanced Functional Materials, EarlyView.Strong exciton‐photon coupling is achieved by integrating porphyrin ligand‐based MOF nanoparticles in optical cavities, as evidenced by pronounced polariton branch anticrossing. The porous nature of the resonator enables precise, reversible tuning via vapor pressure, unlocking unprecedented chemical‐environment controlled dynamic polaritonic platforms ...
Beatriz de Sola‐Báez +7 more
wiley +1 more source
Economics and Business, 2021 The paper aims at determining the relationship between the Covid-19 contagion level and the state of the economy using high-frequency data from Puerto Rico.
Toledo Wilfredo
doaj +1 more source
A spectre is haunting the cosmos: Quantum stability of massive gravity with ghosts [PDF]
, 2016 Many theories of modified gravity with higher order derivatives are usually ignored because of serious problems that appear due to an additional ghost degree of freedom. Most dangerously, it causes an immediate decay of the vacuum.
Akrami, Yashar +4 more
core +1 more source
Advanced Functional Materials, EarlyView.Ru single atoms and RuP nanoclusters are co‐anchored in N, P, and B co‐doped porous carbon nanospheres via in situ carbonization/phosphidation of a boronate polymer precursor. RuP activates water, while nearby Ru single atoms accelerate H2 formation through H* transfer. The catalyst delivers low overpotential and high durability in alkaline HER and AEM
Xiaohong Wang +13 more
wiley +1 more source
Review of Economic Perspectives, 2019 This paper aims to focus weekly stock market prices from the CEECs (Lithuania, Hungary, Romania, Croatia, Slovenia, Poland, Bulgaria, the Slovak Republic, Latvia, Estonia, and the Czech Republic) markets for evidence of weak-form market efficiency.
Erdas Mehmet Levent
doaj +1 more source