Results 21 to 30 of about 3,841,010 (347)

Research Advances in Molecular Regulatory Mechanism of Chordoma

open access: yesZhongliu Fangzhi Yanjiu, 2019
Chordoma is a rare primary malignant bone tumor derived from notochord remnants. Due to its strong local invasiveness and chemotherapy resistance, chordoma has a high local recurrence rate and poor prognosis.
LIANG Chen, YANG Chenlong, LIU Xiaoguang
doaj   +1 more source

Molecules to Remember [PDF]

open access: yesCell, 2007
"Working memory" is used for the transient storage of information in the brain. In this issue of Cell, Wang et al. (2007) now reveal how a series of molecular events involving alpha2A-adrenoceptors and a class of ion channels gated by cAMP tune the responses of neural circuits that function in working memory in mammals.
Ranulfo Romo, Emilio Salinas
openaire   +3 more sources

How the Toxin got its Toxicity

open access: yesFrontiers in Pharmacology, 2020
Venom systems are functional and ecological traits, typically used by one organism to subdue or deter another. A predominant subset of their constituent molecules—“toxins”—share this ecological function and are therefore molecules that mediate ...
Timothy N. W. Jackson, Ivan Koludarov
doaj   +1 more source

Ultrafast dynamics in molecular ions following UV and XUV excitation: a perspective

open access: yesAdvances in Physics: X, 2022
Gas phase experiments combined with ultrafast technologies can provide information on the intrinsic properties of molecular systems at picosecond, femtosecond, or even attosecond timescales.
Marius Hervé   +4 more
doaj   +1 more source

Magnetic hysteresis up to 80 kelvin in a dysprosium metallocene single-molecule magnet

open access: yesScience, 2018
Breaking through the nitrogen ceiling Single-molecule magnets could prove useful in miniaturizing a wide variety of devices. However, their application has been severely hindered by the need to cool them to extremely low temperature using liquid helium ...
Fu-Sheng Guo   +5 more
semanticscholar   +1 more source

USING OF NUMERICAL METHODS FOR CALCULATION THE EQUATION FOR CLUSTERS CONCENTRATIONS IN GASEOUS MATERIALS

open access: yesInformatyka, Automatyka, Pomiary w Gospodarce i Ochronie Środowiska, 2013
This article describes cluster model of gaseous materials and prospects of using the model. Equations set for the calculation of different sizes clusters concentrations are presented. The authors produce numerical solution of the equation set. Results of
Alexey Bublikov   +2 more
doaj   +1 more source

Flavone Enhances Dengue Virus Type-2 (NGC Strain) Infectivity and Replication in Vero Cells

open access: yesMolecules, 2012
This study investigates the effects of 2-phenyl-1-benzopyran-4-one (flavone) on DENV-2 infectivity in Vero cells. Virus adsorption and attachment and intracellular virus replication were investigated using a foci forming unit assay (FFUA) and ...
Keivan Zandi   +7 more
doaj   +1 more source

Cooperation of Oligodeoxynucleotides and Synthetic Molecules as Enhanced Immune Modulators

open access: yesFrontiers in Nutrition, 2019
Unmethylated cytosine–guanine dinucleotide (CpG) motifs are potent stimulators of the host immune response. Cellular recognition of CpG motifs occurs via Toll-like receptor 9 (TLR9), which normally activates immune responses to pathogen-associated ...
Shireen Nigar, Takeshi Shimosato
doaj   +1 more source

Generating Focused Molecule Libraries for Drug Discovery with Recurrent Neural Networks

open access: yesACS Central Science, 2017
In de novo drug design, computational strategies are used to generate novel molecules with good affinity to the desired biological target. In this work, we show that recurrent neural networks can be trained as generative models for molecular structures ...
Marwin H. S. Segler   +3 more
semanticscholar   +1 more source

Para além das fronteiras da química: relações entre filosofia, psicologia e ensino de química Beyond chemical boundaries: a conceptual profile for molecule and molecular structure

open access: yesQuímica Nova, 1997
The concepts of molecule and of molecular structure are so central to understand chemical phenomena that seems to be no doubt about the uniqueness of its meanings. Nevertheless, the idea that the world exhibits a multiform structure and that to different
Eduardo Fleury Mortimer
doaj   +1 more source

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