Search results for "block"

Comparison of two needle models in terms of bevel deformation during truncal block of the inferior alveolar nerve

2007

Objectives: To evaluate the differences in terms of bevel deformation between two types of needle of the same length and external caliber, but with different internal diameters, during truncal block of the inferior alveolar nerve. Study design: Four operators performed truncal block of the inferior alveolar nerve and infiltrating anesthesia of the buccal nerve for the extraction of a lower third molar in 266 patients. The truncal block was carried out using a standard 27G x 35 mm needle with an internal caliber of 0.215 mm, or a 27G x 35 mm XL Monoprotect® needle with an internal caliber of 0.265 mm. The infiltrating anesthesia was made with a Monoprotect® or XL Monoprotect® needle, both wi…

Coulomb blockade thermometry

1996

One dimensional arrays of normal metal tunnel junctions have been found to exhibit properties which are very suitable for primary and secondary thermometry in a lithographically adjustable temperature range which extends over about two decades. The thermometer is remarkably insensitive to nonuniformities in the actual pattern and to even strong magnetic fields. We also discuss the behaviour of this device at very low temperatures where the hot electron effect due to poor electron phonon coupling ultimately takes over and at very high temperatures where the finite tunnel barrier effects appear. Short arrays, and especially single tunnel junctions show interesting deviations from the universa…

Los cuentos de los hermanos Grimm en el contexto multimedia del siglo XXI

2014

El análisis de obras cinematográficas y material multimedia se está convirtiendo en una de las herramientas más de moda y útiles en los estudios literarios. Precisamente los Kinder- und Hausmärchen de los hermanos Grimm han sido de los textos que más transformaciones ha sufrido, en especial, gracias a las nuevas tecnologías. Así encontramos no sólo nuevas adaptaciones, versiones y perversiones, tanto literarias como fílmicas, de los más conocidos cuentos populares, sino también experimentos virtuales, interactivos y lingüísticos que obligan a replantear constantemente las fronteras de un género que no deja de evolucionar. El objeto de la presente comunicación será, por lo tanto, mostrar nue…

Some morfologiacal effects related to a non uniform uplifting of crustal blocks in Northern Sicily (central Mediterranean)

2010

The Hybrid Block as Urban Form

2018

The Hybrid Block as Urban Form Javier Pérez Igualada Escuela Técnica Superior de Arquitectura, Universitat Politécnica de València. Camino de Vera, s/n. 46022 Valencia. E-mail: jperezi@urb.pv.es Keywords: Hybrid Block, Urban Form, Mixed Use Buildings, Open Planning Conference topics and scale: Urban form and social use of space     In this paper we analyze the hybrid block as an urban form of synthesis, in which the open order of modern urbanism is superimposed on the closed order of traditional urbanism. In this model, proposed for the first time by Hilberseimer in his 1927 Vertical City, housing and work are not separated but overlapping on mixed-use buildings, where the dwellings are loc…

Chronisches thromboembolisches Cor pulmonale bei schrittmacherassoziierten rechtsatrialen Thromben: Pulmonale Thrombendarteriektomie mit Elektrodenen…

2008

Life-threatening chronic cor pulmonale occurred in a 22-year-old woman with congenital 3 degrees atrioventricular block, 6 years after implantation of a pacemaker and 3 1/2 years after removal of the pacemaker (the electrodes were too firmly attached to be removed). The emboli originated from the right-atrial thrombi which had formed around the electrodes left in situ. The embolic source shrank during systemic administration of urokinase, initially 600,000 IU in 60 min, then 100,000 IU per hour, and pulmonary perfusion improved transiently. Nonetheless the patient became breathless on the slightest physical exertion. Recurrent syncopal attacks with marked increase of pulmonary artery pressu…

A new tool for evaluating and/or selecting analytical methods: Summarizing the information in a hexagon

2019

Abstract A quantitative evaluation tool is proposed, which aims to assess optimal selection or/and testing of analytical methods. Objective criteria related to analytical performance, sustainability, environmental impact and economic cost are evaluated through the definition of penalty points divided into five different blocks, namely, figures of merit, toxicity and safety, residues, carbon footprint and economic cost. For each block, the overall qualification is scaled from 0 to 4 and it is depicted on a regular hexagonal pictogram that allows a user friendly comparison of analytical procedures. The present evaluation tool aims to be a guideline for evaluating and/or selecting analytical p…

Comparing Traditional and IRT Scoring of Forced-Choice Tests.

2018

This article explores how traditional scores obtained from different forced-choice (FC) formats relate to their true scores and item response theory (IRT) estimates. Three FC formats are considered from a block of items, and respondents are asked to (a) pick the item that describes them most (PICK), (b) choose the two items that describe them the most and the least (MOLE), or (c) rank all the items in the order of their descriptiveness of the respondents (RANK). The multi-unidimensional pairwise-preference (MUPP) model, which is extended to more than two items per block and different FC formats, is applied to obtain the responses to each item block. Traditional and IRT (i.e., expected a po…

VEGF-targeted therapy stably modulates the glycolytic phenotype of tumor cells

2014

Abstract Anti-VEGF therapy perturbs tumor metabolism, severely impairing oxygen, glucose, and ATP levels. In this study, we investigated the effects of anti-VEGF therapy in multiple experimental tumor models that differ in their glycolytic phenotypes to gain insights into optimal modulation of the metabolic features of this therapy. Prolonged treatments induced vascular regression and necrosis in tumor xenograft models, with highly glycolytic tumors becoming treatment resistant more rapidly than poorly glycolytic tumors. By PET imaging, prolonged treatments yielded an increase in both hypoxic and proliferative regions of tumors. A selection for highly glycolytic cells was noted and this met…

Vascular Endothelial Growth Factor-Releasing Microspheres Based on Poly(ε-Caprolactone-PEG-ε-Caprolactone)-b-Poly(L-Lactide) Multiblock Copolymers In…

2020

Pancreatic islet transplantation is a promising advanced therapy that has been used to treat patients suffering from diabetes type 1. Traditionally, pancreatic islets are infused via the portal vein, which is subsequently intended to engraft in the liver. Severe immunosuppressive treatments are necessary, however, to prevent rejection of the transplanted islets. Novel approaches therefore have focused on encapsulation of the islets in biomaterial implants which can protect the islets and offer an organ-like environment. Vascularization of the device’s surface is a prerequisite for the survival and proper func- tioning of transplanted pancreatic islets. We are pursuing a prevascularization s…