Search results for "GB"

Active macro-zone approach for incremental elastoplastic-contact analysis

2013

The symmetric boundary element method, based on the Galerkin hypotheses, has found an application in the nonlinear analysis of plasticity and in contact-detachment problems, but both dealt with separately. In this paper, we want to treat these complex phenomena together as a linear complementarity problem. A mixed variable multidomain approach is utilized in which the substructures are distinguished into macroelements, where elastic behavior is assumed, and bem-elements, where it is possible that plastic strains may occur. Elasticity equations are written for all the substructures, and regularity conditions in weighted (weak) form on the boundary sides and in the nodes (strong) between cont…

Il coming out in famiglia. Omosessualità e dinamiche familiari tra tradizione, resistenza e sperimentazione

2019

Il saggio cerca di ricostruire le dinamiche familiari di fronte alla scoperta di una/un figlia/o LGBT. Il contributo, nello specifico, intende delineare i processi di reazione a quanto ancora possiamo definire un rapporto di filiazione imprevista, un evento di fatto spiazzante che porta alla ridefinizione degli equilibri famigliari attraverso il diverso ruolo svolto dalle differenze personali (per esempio, il genere dei genitori), socio-culturali e rispetto alle risorse disponibili (reti sociali, strategie di fronteggiamento, ecc.) possedute nel momento in cui la sessualità dei propr* figli* viene socializzata, sospettata, scoperta o appresa da terzi all’interno dei contesti familiari.

Agar-based phantoms for skin diagnostic imaging

2020

Agar-based skin phantoms with different thicknesses and hemoglobin concentration were evaluated for diagnostics of skin lesions by RGB imaging. Scattering properties of the phantoms were simulated using intralipid, absorption properties – using lyophilized powder of human hemoglobin. RGB images of phantoms were captured by self-developed laboratory made devices. The algorithm for calculation of chromophore concentrations are based on Beer-Lambert law and includes the photon path length evaluated from the measured photon-time-of-flight signals. Optical properties and chromophore concentration maps of phantoms obtained from RGB images were analyzed. The influence of chromophore concentration …

Tecniche innovative di fotoelasticità digitale in luce bianca

2010

Didáctica de las ciencias experimentales y sociales

1993

Consideraciones que pueden resultar de utilidad sobre el 'sencillo ejercicio', tanto en el propio planteamiento, como en la resolución detallada. Se ha tratado de poner en evidencia lo rico y sencillo que resulta el análisis de este ejercicio, una vez familiarizados con el formalismo, en contraste con la complejidad, confusión y artificialidad, que siempre generan las simplificaciones apriorísticas; todo ello, mediante el estudio aparentemente simple de un movimiento; aspecto no trivial, el del estudio en movimiento, que está en el origen de la propia Física, desde los griegos. Para concluir, se expone la respuesta a estas consideraciones de J. Félix Fuertes, ya que el sencillo ejercicio no…

Uz administratīvajiem datiem balstīta zāļu devas prognozēšanas modeļa izstrāde

2022

Darbs veltīts zāļu devas prognozēšanas modeļa izstrādei, balstoties uz administratīvajiem datiem. Informācija par precīzu pacientam noteikto zāļu lietošanas devu ir nepieciešama dažādos (farmako)epidemioloģiska rakstura pētījumos, kā piemēram, zāļu līdzestības novērtēšana starp konkrētu medikamentu lietotājiem. Tomēr pētniekiem pieejamajos Latvijas administratīvajos datos šādas informācijas nav. Lai prognozētu zāļu devu, izmantojot pacientu raksturojošus rādītājus (demogrāfiskie faktori, blakusslimības), darbā veidoti un salīdzināti vairāki prognozēšanas modeļi: ordinālā regresija, gadījuma meža algoritms un XGBoost. Datu apstrādes un aprēķinu veikšanai tika izmantota datorprogramma R.

Gene expression in TGFbeta-induced epithelial cell differentiation in a three-dimensional intestinal epithelial cell differentiation model

2006

Abstract Background The TGFβ1-induced signal transduction processes involved in growth and differentiation are only partly known. The three-dimensional epithelial differentiation model, in which T84 epithelial cells are induced to differentiate either with TGFβ1 or IMR-90 mesenchymal cell-secreted soluble factors, is previously shown to model epithelial cell differentiation seen in intestine. That model has not been used for large scale gene expression studies, such as microarray method. Therefore the gene expression changes were studied in undifferentiated and differentiated three-dimensional T84 cultures with cDNA microarray method in order to study the molecular changes and find new play…

Color stimuli perception in presence of light scattering.

2006

Perception of different color contrast stimuli was studied in the presence of light scattering: in a fog chamber in Clermont-Ferrand and in laboratory conditions where light scattering of similar levels was obtained, using different light scattering eye occluders. Blue (shortest wavelength) light is scattered in fog to the greatest extent, causing deterioration of vision quality especially for the monochromatic blue stimuli. However, for the color stimuli presented on a white background, visual acuity in fog for blue Landolt-C optotypes was higher than for red and green optotypes on the white background. The luminance of color Landolt-C optotypes presented on a LCD screen was chosen corresp…

RGB imaging of laser-excited skin autofluorescence bleaching rates

2010

In-vivo skin photo-bleaching (intensity decrease during irradiation) has been investigated at 405 nm cw laser excitation. Digital RGB photo-camera was used for studies of the bleaching features by analysis of fluorescent images at separated R, G and B spectral bands. Diagnostic potential based on correlations between skin pigmentation and bleaching rates is discussed.

The Status of Romanogobio uranoscopus (Agassiz, 1828) Species, in Maramureş Mountains Nature Park (Romania)

2017

Abstract The condition of aquatic habitats typically occupied by Romanogobio uranoscopus within the Maramureş Mountains Natural Park fluctuates, in the best cases, between reduced to average. Good or excellent conservation status is now absent for populations of this species in the researched area. The identified human impact types (poaching, minor riverbeds morphodynamic changes, solid and liquid natural flow changes, destruction of the riparian vegetation and bush vegetation, habitat fragmentation/isolation of population, organic and mining pollution and displaced fish that are washed away during the periodic flooding in the lotic sectors uniformized by humans) are contributing to the dim…