Electromagnetic (EM) Metamaterials have specific EM properties that cannot be found in nature (Caloz & Itoh, 2006). These specific EM properties are obtained by the artificial structures, rather than the composition of the metamaterials, and affect the propagations of EM waves when the average structure sizes are much smaller than the guided wavelengths ┣g, i.e., at least smaller than ┣g/4. Sin...

PURPOSE To determine the impact of an emergency medicine (EM) clerkship on senior (4th year) medical students' perceptions of the EM specialty. SUBJECTS AND METHODS This was a pre/posttest observational study in a mandatory 4-week EM clerkship. Students were anonymously surveyed pre- and postclerkship regarding perceptions of EM. The survey used 24 statements grouped across four domains: 1) s...

Resumen. En la Universidad Simón Bolívar se promueven varias iniciativas en el área de elearning, tales como cursos en línea de postgrado, del Programa de Perfeccionamiento Profesional y de la carrera Gerencia Empresarial. Este artículo tiene como objetivo presentar un plan de trabajo para adoptar estándares de elearning en la creación de un curso en línea. Se realiza una revisión de la literat...

MEDITERRANEAN PLANT COMMUNITIES AFTER RECURRENT WILDFIRES Ricardo Díaz-Delgado, Francisco Lloret, Xavier Pons and Jaume Terradas 1 CREAF. Fac. Ciencias. Bellaterra. 08193. Barcelona. SPAIN. Telephone list: 34 3 581-1877, -2700, -2666, -2850. Fax: 34-3-5811312, E-mail list: [email protected], [email protected], [email protected], [email protected]. 2 Departament de Geografia. Universitat Autònoma d...

Fast atom bombardment (FAB) mass and MS/MS spectra of a novel quinone antibiotic are presented. Their interpretation is based upon the examination of reductive behavior of model quinones in FAB solvents.

1. Ectomycorrhizal (EM) fungi play key roles in forest ecosystems, but the potential effects of invasive plants on EM fungal communities have not been assessed. In this study, we tested whether the non-mycorrhizal herbaceous plant Alliaria petiolata (garlic mustard) can alter the abundance of EM fungal communities in North America. 2. In three forests in New England, USA, we compared EM root ti...

BACKGROUND We studied electron microscopy (EM) as an appropriate test system for the detection of polyomavirus in urine samples from bone marrow transplant patients. METHODS We evaluated direct EM, ultracentrifugation (UC) before EM, and solid-phase immuno-EM (SPIEM). The diagnostic accuracy of EM was studied by comparison with a real-time PCR assay on 531 clinical samples. RESULTS The dete...

OBJECTIVES Erythema multiforme (EM) is characterized by symmetrical acrally distributed target lesions; however, other conditions can mimic the clinical features of EM. Although it is typically self-limiting, alternative diagnoses may be life-threatening and require immediate identification and treatment. This study aimed to investigate the clinical spectrum and accuracy of diagnosis of pediatr...

Generally, cancer tissue is palpated as a hard mass. However, the elastic nature of cancer tissue is not well understood. The aim of the present study was to evaluate the clinical utility of measuring the elastic modulus (EM) in colorectal cancer tissue. Using a tactile sensor, we measured the EM of 106 surgically resected colorectal cancer tissues. Data on the EM were compared with clinicopath...

Research to understand variability at the highest end of the cognitive performance distribution has been scarce. Our aim was to define a cognitive endophenotype based on exceptional episodic memory (EM) performance and to investigate familial aggregation of EM in families from the Long Life Family Study (LLFS). Using a sample of 1911 nondemented offspring of long-lived probands, we created a qu...