Guide the Diagnosis and Management of Chronic Heart Failure To the Editor: We read with interest the viewpoint of Dr Milton Packer in a recent editorial1 accompanying a study examining the behavior of B-type natriuretic peptides in outpatients with congestive heart failure (CHF).2 Dr Packer1 suggested that B-type natriuretic peptides (BNPs) have not been shown to “improve upon the information d...

We present a novel structure determination approach that exploits the global orientational restraints from RDCs to resolve ambiguous NOE assignments. Unlike traditional approaches that bootstrap the initial fold from ambiguous NOE assignments, we start by using RDCs to compute accurate secondary structure element (SSE) backbones at the beginning of structure calculation. Our structure determina...

This study presents a comprehensive finite element (FE) analysis of cold-formed high strength steel (CFHSS) tubular T-joints. The brace members T-joints were made up rectangular (including square) and circular hollow sections (RHS CHS), whereas the chord RHS. nominal yield strengths (i.e. 0.2% proof stresses) 900 960 MPa for S900 S960 steels, respectively. Finite models developed verified again...

A new species of the bee genus Geodiscelis Michener & Rozen, 1999, G. antiminera sp. nov., is here described and illustrated. This is the sixth species of the genus, and the second recorded from Peru. The combination of malar area ~1.5x longer than wide, wing veins dark-brown, metepisternum nearly glabrous, and medioventral process on gonocoxa conical and well-developed, separates G. antiminera...

The block-packing problem has applications in chip design, factory layout, container shipment optimization, scheduling and other areas. It has been actively studied in the last 20 years, but symmetry in packings has been neglected. Our work deals with symmetry in several formulations of block-packing, including optimization and constraint-satisfaction variants, as well as slicing and non-slicin...

We consider the problem of computing the squared volume of the largest j-simplex contained in an n-dimensional polytope presented by its vertices (a V -polytope). We show that the related decision problem is W [1]-complete, with respect to the parameter j. We also improve the constant inapproximability factor given in [Packer, 2004, Discrete Applied Mathematics, 134], by showing that there are ...

The bee genus Mirnapis is revised. Mirnapis ohloweni Packer and Dumesh new species, is described from East of Nazca, Peru and compared to both sexes of the type species, M. inca Urban, based upon material from northern Chile. Thus, the female of the genus is described for the first time. Both sexes of both species are illustrated and variation in some important characteristics noted. The new ma...

Electrokinetic Enhanced Transport of Zero Valent Iron Nanoparticles for Chromium(VI) Reduction in Soils Helena I. Gomes*, Celia Dias-Ferreira, Alexandra B. Ribeiro, Sibel Pamukcu Department of Civil and Environmental Engineering, Fritz Engineering Laboratory, 13 E. Packer Avenue, Lehigh University, Bethlehem, PA 18015-4729, USA b CENSE, Departamento de Ciências e Engenharia do Ambiente, Faculda...

An interior point constraint generation algorithm for semi-infinite optimization with healthcare application* Mohammad R. Oskoorouchi† College of Business Administration, California State University San Marcos, San Marcos, California 92096, USA, Email: moskooro@csusm.edu Hamid R. Ghaffari Department of Mechanical and Industrial Engineering, University of Toronto, Toronto ON, M5S 3G8, Canada, Em...

1. Carcinomatous meningitis (metastases caused by carcinoma such as lung and breast) 2. Meningeal gliomatosis (dissemination of CSF caused by malignant glial tumors) 3. Leptomeningeal metastases secondary to other underlying solid tumors (e.g., rhabdomyosarcoma, neuroblastoma, medulloblastoma, other primitive neuroectodermal tumors) 4. Lymphomatous meningitis (metastases caused by lymphoma) 5. ...