Results 91 to 100 of about 3,531,989 (315)

The Pisa Stellar Evolution Data Base for low-mass stars

, 2012
The last decade showed an impressive observational effort from the photometric and spectroscopic point of view for ancient stellar clusters in our Galaxy and beyond.
Degl'Innocenti, S., Dell'Omodarme, M., Moroni, P. G. Prada, Valle, G.   +3 more
core   +1 more source

Construção de modelos para ilustração de estruturas moleculares em aulas de química

Química Nova, 1999
This paper describes the construction of a kit of molecular model for illustration of molecular structure in chemical class using cheap materials. The atoms were represented by plastic spheres and the bonds between the atoms were made from plastic straws
Lima M. B., Lima-Neto P. De
doaj  

SET-THEORETIC DESCRITPION OF FUNCTIONAL MODELS OF CHEMICAL MANUFACTURING

Тонкие химические технологии, 2017
The technique for the formalized description of functional models of chemical manufacturing is developed. The technique is based on graph theory.
E. V. Burlyaeva, V. V. Burlyaev, V. S. Tsekhanovich   +2 more
doaj   +1 more source

Improving Chemical Named Entity Recognition in Patents with Contextualized Word Embeddings [PDF]

arXiv, 2019
Chemical patents are an important resource for chemical information. However, few chemical Named Entity Recognition (NER) systems have been evaluated on patent documents, due in part to their structural and linguistic complexity. In this paper, we explore the NER performance of a BiLSTM-CRF model utilising pre-trained word embeddings, character-level ...
arxiv  

Interaction vesicles as emerging mediators of host‐pathogen molecular crosstalk and their implications for infection dynamics

FEBS Letters, EarlyView.
Interaction extracellular vesicles (iEVs) are hybrid vesicles formed through host‐pathogen communication. They facilitate immune evasion, transfer pathogens' molecules, increase host cell uptake, and enhance virulence. This Perspective article illustrates the multifunctional roles of iEVs and highlights their emerging relevance in infection dynamics ...
Bruna Sabatke, Izadora Volpato Rossi, Marcel I. Ramirez   +2 more
wiley   +1 more source

Robust chemical solver for fully-implicit simulations [PDF]

arXiv, 2018
The study of geological systems requires the solution of complex geochemical relations. We present an implementation of a chemical solver which can handle various types of models, including surface chemistry. The implementation is done in view of easy coupling with flow simulations to obtain a fully-coupled, fully-implicit solver for chemical reaction ...
arxiv  

STAT3 expression is reduced in cardiac pericytes in HFpEF and its loss reduces cellular adhesion and induces pericyte senescence

FEBS Letters, EarlyView.
Heart failure with preserved ejection fraction (HFpEF) accounts for half of the heart failure cases. It is characterised by microvascular dysfunction, associated with reduced pericyte coverage and diminished STAT3 expression in pericytes. Loss of STAT3 impairs pericyte adhesion, promotes senescence, and activates a pro‐fibrotic gene program.
Leah Rebecca Vanicek, Ariane Fischer, Mariano Ruz Jurado, Anita Tamiato, Tara Procida‐Kowalski, Jochen Wilhelm, Dennis Hecker, Maximilian Merten, Felicitas Escher, Badder Kattih, Valentina Puntmann, David John, Marcel H. Schulz, Eike Nagel, Stefanie Dimmeler, Guillermo Luxán   +15 more
wiley   +1 more source

Abundance patterns of multiple populations in Globular Clusters: a chemical evolution model based on yields from AGB ejecta

, 2010
A large number of spectroscopic studies have provided evidence of the presence of multiple populations in globular clusters by revealing patterns in the stellar chemical abundances.
Angulo, Annibale D'Ercole, Asplund, Bedin, Bekki, Bekki, Bellazzini, Busso, Caloi, Carretta, Carretta, Carretta, Carretta, Carretta, Carretta, Cassisi, Choi, Ciotti, Cohen, D'Antona, D'Antona, D'Antona, D'Antona, D'Antona, D'Ercole, Da Costa, Decressin, Denissenkov, Enrico Vesperini, Ferraro, Francesca D'Antona, Gratton, Gratton, Hale, Herwig, Ivans, Ivans, Izzard, Johnson, Karakas, Karakas, Kraft, Lee, Lin, Mandushev, Marcolini, Marino, Marino, Marino, Matteucci, Milone, Milone, Norris, Norris, Norris, Paolo Ventura, Pflamm-Altenburg, Piotto, Piotto, Prantzos, Pumo, Ramírez, Renzini, Rich, Romano, Salaris, Sarajedini, Siess, Siess, Sneden, Stephen L. W. McMillan, Suntzeff, Ventura, Ventura, Ventura, Ventura, Ventura, Ventura, Ventura, Wheeler, Yong, Yong, Yoon   +82 more
core   +1 more source

Ion channel function of polycystin‐2/polycystin‐1 heteromer revealed by structure‐guided mutagenesis

FEBS Letters, EarlyView.
Mutations in polycystin‐1 (PC1) or polycystin‐2 (PC2) cause autosomal‐dominant polycystic kidney disease (ADPKD). We generated a novel gain‐of‐function PC2/PC1 heteromeric ion channel by mutating pore‐blocking residues. Moreover, we demonstrated that PC2 will preferentially assemble with PC1 to form heteromeric complexes when PC1 is co‐expressed ...
Tobias Staudner, Juthamas Khamseekaew, M. Gregor Madej, Linda Geiges, Bardha Azemi, Christine Ziegler, Christoph Korbmacher, Alexandr V. Ilyaskin   +7 more
wiley   +1 more source

Decoding the dual role of autophagy in cancer through transcriptional and epigenetic regulation

FEBS Letters, EarlyView.
Transcriptional and epigenetic regulation controls autophagy, which exerts context‐dependent effects on cancer: Autophagy suppresses tumorigenesis by maintaining cellular homeostasis or promotes tumor progression by supporting survival under stress. In this “In a Nutshell” article, we explore the intricate mechanisms of the dual function of autophagy ...
Young Suk Yu, Ik Soo Kim, Sung Hee Baek
wiley   +1 more source