In this work, the mechanism for fracture of brittle substances such as rocks under a uniform normal tension is considered. The oriented straight micro-cracks are mostly created in all the polycrystalline materials resulting from the stress concentrations. The present work focuses on the interactions of the pre-existing micro-cracks, which can grow and propagate within a rock-like specimen. The ...

This work studies the convergence properties of mixed non-overlapping domain decomposition method (DDM) commonly named “Latin method”. As all DDM, Latin is sensitive to near-interface heterogeneity and irregularity. Using a simple yet fresh point view, we analyze role Robin parameters as well second level (coarse space) correction — which are characteristic method. In particular, show how build...

Introducción: El divertículo de Meckel (DdM) es la malformación intestinal congénita más común diagnosticada intraoperatoriamente y requiere una resolución quirúrgica vez conocido el diagnóstico. presente estudio describe experiencia en tratamiento quirúrgico abierto laparoscópico del DdM. Metodología: transversal – retrospectivo, se realizó niños tratados Hospital Niños Dr. Roberto Gilbert Eli...

In recent years the hybrid-Trefftz finite element (hT-FE) model, which originated in the work by Jirousek and his collaborators and makes use of an independently defined auxiliary inter-element frame, has been considerably improved. It has indeed become a highly efficient computational tool for the solution of difficult boundary value problems In parallel and to a large extent independently, a ...

AIM Lactose and complex carbohydrates maldigestion, common food intolerances due to low gut content of α- and β-galactosidase, lead to abdominal symptoms including pain, diarrhea, bloating, flatulence, and cramping. Commonly, intolerant patients are advised by physicians to avoid the offending foods (dairy foods, cereals, beans, etc). This food-limiting option, however, has possible nutritional...

Upon illumination the visual receptor rhodopsin (Rho) transitions to the activated form Rho(∗), which binds the heterotrimeric G protein, transducin (Gt) causing GDP to GTP exchange and Gt dissociation. Using succinylated concanavalin A (sConA) as a probe, we visualized native Rho dimers solubilized in 1mM n-dodecyl-β-d-maltoside (DDM) and Rho monomers in 5mM DDM. By nucleotide depletion and af...

The recent discovery of dideoxymycobactin (DDM) as a ligand for CD1a demonstrates how a nonribosomal lipopeptide antigen is presented to T cells. DDM contains an unusual acylation motif and a peptide sequence present only in mycobacteria, but its discovery raises the possibility that ribosomally produced viral or mammalian proteins that commonly undergo lipidation might also function as antigen...

Measurement-based admission control algorithms exploit the statistical multiplexing nature of input traffic to admit more flows into a system than is possible when assuming that each admitted flow is fully loaded. However, most previous measurement-based admission control algorithms did not have a satisfactory solution to the problem of guaranteeing distinct per-flow delay bounds while exploiti...

Challenging Issues As complexity in our everyday environment increases (e.g., mobile applications for monitoring energy consumption), how do we adapt and react to the changing demands placed on us? In dynamic decision making (DDM) problems, the environment changes over time due to previous decisions made and/or factors outside the control of the decision-maker. To maximize his/her reward, an ag...