Results 41 to 50 of about 948,302 (303)

Análisis de componentes principales - Aspectos formales

open access: yes, 2023
En este documento se tratan aspectos formales y aplicados de la técnica multivariante, relacionada con la reducción de la dimensionalidad, análsis de componentes principales.
Romero Béjar, José Luis   +1 more
openaire   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

open access: yesFEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa   +5 more
wiley   +1 more source

Reconocimiento de expresiones faciales utilizando análisis de componentes principales Kernel (KPCA) [PDF]

open access: yes, 2008
Este artículo presenta una metodología para el reconocimiento de expresiones faciales con análisis de componentes principales kernel, la base de datos utilizada es la Carnegie Mellon University como herramienta de prueba.
Fetecua Valencia, Juan Gabriel   +2 more
core  

pH‐mediated activation of the lysosomal arginine sensor SLC38A9

open access: yesFEBS Letters, EarlyView.
Cells monitor nutrient levels via the lysosomal transporter SLC38A9 to activate the mechanistic target of rapamycin complex 1 (mTORC1). This study reveals that SLC38A9 function is regulated by pH. We identified histidine 544 as a critical pH sensor that undergoes conformational changes to control amino acid efflux from lysosomes; therefore, it ...
Xuelang Mu, Ampon Sae Her, Tamir Gonen
wiley   +1 more source

Principales componentes químicos y parámetros físicos del queso de Los Pedroches [PDF]

open access: yes, 1977
Se ha determinado la composición química bruta, los principales componentes mmerales y dos parámetros físicos, el pH y la ow, de un lote heterogéneo de 16 quesos de Los Pedroches maduros, elaborados todos eUos por productores diferentes.
Esteban, M. Asunción   +2 more
core  

Transcriptional network analysis of PTEN‐protein‐deficient prostate tumors reveals robust stromal reprogramming and signs of senescent paracrine communication

open access: yesMolecular Oncology, EarlyView.
Combining PTEN protein assessment and transcriptomic profiling of prostate tumors, we uncovered a network enriched in senescence and extracellular matrix (ECM) programs associated with PTEN loss and conserved in a mouse model. We show that PTEN‐deficient cells trigger paracrine remodeling of the surrounding stroma and this information could help ...
Ivana Rondon‐Lorefice   +16 more
wiley   +1 more source

Diseño preliminar de shaker hidráulico de 1 grado de libertad [PDF]

open access: yes, 2014
El siguiente trabajo presenta el diseño preliminar de un shaker hidráulico de un grado de libertad para análisis de componentes de uso aeroespacial. En el mismo se presentan los análisis estructurales y dinámicos preliminares utilizados para definir los ...
Bidinost, Pablo   +4 more
core  

Plecstatin inhibits hepatocellular carcinoma tumorigenesis and invasion through cytolinker plectin

open access: yesMolecular Oncology, EarlyView.
The ruthenium‐based metallodrug plecstatin exerts its anticancer effect in hepatocellular carcinoma (HCC) primarily through selective targeting of plectin. By disrupting plectin‐mediated cytoskeletal organization, plecstatin inhibits anchorage‐dependent growth, cell polarization, and tumor cell dissemination.
Zuzana Outla   +10 more
wiley   +1 more source

Efecto del proceso de preservación y fijación en Peruanocotyle pelagica (Monogenea: Monocotylidae)

open access: yesRevista Biológico Agropecuaria Tuxpan
Peruanocotyle pelagica es una especie de monogéneo parásita de Rhinoptera steindachneri, con distribución en la costa sur del Pacifico mexicano.  Se realizó un análisis morfológico y morfométrico de 52 ejemplares para evaluar el efecto de los procesos ...
Uziel Armando Quiroz-Larios   +3 more
doaj   +1 more source

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