Do informal social ties connecting inventors across distant places promote knowledge flows between them? To measure ties, we use a new and direct index of connectedness regions based on aggregate Facebook friendships. We well-established identification strategy that relies matching inventor citations with from examiners. Moreover, isolate the specific effect connections, above beyond formal pro...

Redox reactions play key roles in intra- and inter-cellular signaling, and in adaptative processes of tissues towards stress. Among the major free radicals with essential functions in cells are reactive oxygen species (ROS) including superoxide anion (O2 (•-)), hydroxyl radical ((•)OH) and reactive nitrogen species (RNS) such as nitric oxide ((•)NO). In this article, we review the forgotten and...

Copyright © 2013, Nephrology and Urology Research Center; Licensee Kowsar Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Dear Editor, Catheter encrustation is a chall...

The q = 10 and q = 200 state Potts models coupled to 2d gravity are investigated numerically and shown to have continuous phase transitions, contrary to their behavior on a regular lattice. Critical exponents are extracted and possible critical behavior for general q-state Potts models coupled to gravity is discussed.

O2 is essential for the maintenance and growth of aerobic animals, similar to the essentiality of what are classically considered nutrients. Nevertheless, O2 is not customarily regarded as a nutrient, this reflecting the route by which it enters the body - through the lungs or gills in vertebrates, rather than via the mouth and gastrointestinal tract. A relative deficiency of O2 occurs at high ...

The Raman effect -- inelastic scattering of light by lattice vibrations (phonons) produces an optical response closely tied to a material's crystal structure. Here we show that resonant excitation IR and phonons gives rise can induce giant shifts the refractive index new constants are forbidden in equilibrium We complete description light-matter interactions mediated coupled crystalline insulat...

Exposing individuals to an isolated component (a prime) of a prior event alleviates its forgetting. Two experiments with 120 human infants between 3 and 18 months of age determined the minimum duration of a prime that can reactivate a forgotten memory and how long the reactivated memory persists. Infants learned an operant task, forgot it, were exposed to the prime, and later were tested for re...

Malta Medical Journal Volume 16 Issue 04 November 2004 Abstract Tetanus is an illness that is still prevalent although the incidence has markedly decreased largely due to immunisation programmes. The latest four cases managed at St. Luke’s hospital over 2001-2002 are presented. All of these patients survived. We give an overview of the illness and discuss the cases and management. The potential...

A quick glance through the Mathematics section of the 2004 Stanford University Bulletin reveals five courses devoted to complex analysis, but no courses even mentioning quaternions. How is it that complex analysis, a subject that has suffered through hundreds of years of skepticism and distrust, came to be so widely accepted today, while quaternionic analysis, a modern subject immediately accep...

Received: 24.08.2016; Accepted: 02.02.2017 Fig. 1: (A) ECG showing non-specific ST-T changes; (B) Broad medial margin in chest X-ray. (C) Modified 2-chamber view in echo showing the neck of pseudoaneurysm with bidirectional flow across the narrow neck in colour Doppler study (D). CT scan in transverse and coronal plane shows the pseudoaneurysm with calcified margins (E,F). Subtracted black bloo...