Results 71 to 80 of about 3,138,502 (297)

Análise comparativa dos efeitos alelopáticos das substâncias químicas titonina e titonina acetilada Comparative analysis of the allelopathic effects of the chemical compounds tithonine and acetylated tithonine

open access: yesPlanta Daninha, 2006
Este trabalho teve por objetivo estabelecer as variações na atividade alelopática da substância química titonina, em função da acetilação de sua molécula.
A.P.S. Souza Filho   +2 more
doaj   +1 more source

Electronic friction near metal surfaces: a case where molecule-metal couplings depend on nuclear coordinates

open access: yes, 2016
We derive an explicit form for the electronic friction as felt by a molecule near a metal surface for the general case that molecule-metal couplings depend on nuclear coordinates.
Dou, Wenjie, Subotnik, Joseph E.
core   +1 more source

Adjunctive Therapeutic Plasma Exchange in Refractory Adult‐Onset Still's Disease Complicated by Secondary Macrophage Activation Syndrome: A Single‐Center Experience

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Introduction Adult‐onset Still's disease (AOSD) complicated by macrophage activation syndrome (MAS) carries substantial mortality. The role of therapeutic plasma exchange (TPE) remains uncertain. Methods We retrospectively analyzed patients with AOSD‐MAS treated with TPE at a single‐center.
Masataka Ueda   +15 more
wiley   +1 more source

Site-selective adsorption of naphthalene-tetracarboxylic-dianhydride on Ag(110): First-principles calculations

open access: yes, 2006
The mechanism of adsorption of the 1,4,5,8-naphthalene-tetracarboxylic-dianhydride (NTCDA) molecule on the Ag(110) surface is elucidated on the basis of extensive density functional theory calculations.
Alexis Baratoff   +15 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Pathways and molecules for overcoming immunotolerance in metastatic gastrointestinal tumors

open access: yesFrontiers in Immunology
Worldwide, gastrointestinal (GI) cancer is recognized as one of the leading malignancies diagnosed in both genders, with mortality largely attributed to metastatic dissemination.
Qixin Gan   +6 more
doaj   +1 more source

Update on the Development of Toehold Switch-Based Approach for Molecular Diagnostic Tests of COVID-19

open access: yesJournal of Nucleic Acids, 2022
A high volume of diagnostic tests is needed during the coronavirus disease 2019 (COVID-19) pandemic to obtain representative results. These results can help to design and implement effective policies to prevent the spread of severe acute respiratory ...
Almando Geraldi   +2 more
doaj   +1 more source

Carbon nanotube sensor for vibrating molecules

open access: yes, 2013
The transport properties of a CNT capacitively coupled to a molecule vibrating along one of its librational modes are studied and its transport properties analyzed in the presence of an STM tip.
Cavaliere, F.   +4 more
core   +1 more source

Ultracold Rydberg molecules [PDF]

open access: yesNature Communications, 2018
AbstractUltracold molecules formed from association of a single Rydberg atom with surrounding atoms or molecules and those from double Rydberg excitations are discussed in this review. Ultralong-range Rydberg molecules possess a novel molecular bond resulting from scattering of the Rydberg electron from the perturber atoms or molecules.
J. P. Shaffer   +2 more
openaire   +4 more sources

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

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