Results 51 to 60 of about 7,880,129 (337)
Hydrogen bonding as a clustering agent in protic ionic liquids: like-charge vs opposite-charge dimer formation [PDF]
The local structure of a series of homologous protic ionic liquids (PILs) is investigated using ab initio computations and ab initio-based molecular dynamics. The purpose of this work is to show that in PILs the network of hydrogen bonds may promote like-
Adenusi, Henry +3 more
core +3 more sources
Bacteria belonging to the Lachnospiraceae family are abundant, obligate anaerobic members of the microbiota in healthy humans. Lachnospiraceae impact their hosts by producing short-chain fatty acids, converting primary to secondary bile acids, and ...
Matthew T. Sorbara +9 more
semanticscholar +1 more source
Variational method for 1D spin chains [PDF]
The author reports on a new variational method for determining the ground state energy of antiferromagnetic Heisenberg spin chains with nearest-neighbour interaction. The method enables one to extrapolate to the exact energy and it is shown that the first few approximations give better results than other approximate methods.
openaire +1 more source
Total variation cutoff in birth-and-death chains [PDF]
25 ...
Ding, Jian, Lubetzky, Eyal, Peres, Yuval
openaire +2 more sources
International Variation in Criteria for Internal Mammary Chain Radiotherapy [PDF]
Evidence has emerged that internal mammary chain (IMC) radiotherapy reduces breast cancer mortality, leading to changes in treatment guidelines. This study investigated current IMC radiotherapy criteria and the percentages of patients irradiated for breast cancer in England who fulfilled them.A systematic search was undertaken for national guidelines ...
Duane, F +10 more
openaire +3 more sources
Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Experimental Observation of Resonance-Assisted Tunneling
We present the first experimental observation of resonance-assisted tunneling, a wave phenomenon, where regular-to-chaotic tunneling is strongly enhanced by the presence of a classical nonlinear resonance chain. For this we use a microwave cavity made of
Bäcker, Arnd +6 more
core +1 more source
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source
Increasingly, stable isotope ratios of nitrogen (δ(15)N) and carbon (δ(13)C) are used to quantify trophic structure, though relatively few studies have tested accuracy of isotopic structural measures.
Matthew J Perkins +5 more
doaj +1 more source
Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes +3 more
wiley +1 more source

