Getting to Zero HIV Cases San Francisco: Reconceptualizing Housing as HIV Prevention and HIV Treatment

The City and County of San Francisco, originallyground zero for the HIV epidemic in the United States, is redefining public health HIV interventions, potentially positioning San Francisco as one of the first major metropolitan cities in the world to reach zero HIV infectioncases, zero HIV-related deaths, and zero HIV-related stigma. As innovative as the Getting to Zero campaign appears to be, it fails to formally incorporate and respond to a fundamental matter pertinent to HIV prevention, HIV treatment, and San Francisco: housing. This research explores service gaps present in Getting to Zero byinvestigating the relationship between class, race, and HIV, specifically by emphasizing the role housing (or lackof housing) creates in shaping health outcomes related to HIV

Getting to Zero HIV Cases in San Francisco: Reconceptualizing Housing as Public Health Infrastructure in the Framework of HIV Prevention and Treatment

The City and County of San Francisco, originally ground zero for the HIV epidemic in the United States, is redefining public health HIV interventions, potentially positioning San Francisco as one of the first major metropolitan cities in the world to reach zero HIV infection cases, zero HIV-related deaths, and zero HIV-related stigma. As innovative as the Getting to Zero campaign appears to be, it fails to formally incorporate and respond to a fundamental matter pertinent to HIV prevention, HIV treatment, and San Francisco: housing. This research explores service gaps present in Getting to Zero by investigating the relationship between class, race, and HIV, specifically by emphasizing the role housing (or lack of housing) creates in shaping health outcomes related to HIV

A class of chiral fermion models

We study the relation between the Roma and Zaragoza proposals for chiral fermions on the lattice. The fermion action in the Roma approach is shown to be equivalent to one of the Zaragoza type. This result is used to perform a mean-field study of the phase diagram for chiral Yukawa models based on the Roma action. The phase diagram is compared with the one based on the Zaragoza model with the most local choice for the fermion interactions.Comment: Version to appear in Nucl. Phys. B. Some general discussion added to the Introduction and Conclusion sections. Now 33 pages Latex; style files and (unchanged) PostScript figures again attached in uufiles forma

A Note on Repeated-Root Cyclic Codes

In papers by Castagnoli et al. and Van Lint, cyclic codes with repeated roots are analyzed. Both papers fail to acknowledge a previous work by Chen, dating back to 1969, which includes an analysis of even, length binary cyclic codes. Results from Chen’s study are presented

Reformas urbanas en Zaragoza = Inner Urban Renewal in Zaragoza

Díez Medina, Carmen; Sánchez Lampreave, Ricardo: “Reformas interiores en Zaragoza / Inner Urban Renewal in Zaragoza”. En el libro “Urban Regeneration I. Proposals for San Pablo Neighborhood, Zaragoza / Regeneración urbana I. Propuestas para el barrio de San Pablo, Zaragoza”, Ed. Prensas de la Universidad de Zaragoza, Zaragoza, 2014

Block QPSK modulation codes with two levels of error protection

A class of block QPSK modulation codes for unequal error protection (UEP) is presented. These codes are particularly suitable either for broadcast channels or for communication systems where parts of the information messages are more important than others. An example of the latter is coded speech transmission. Not much is known on the application of block UEP codes in combined coding and modulation schemes. We exhibit a method to combine binary linear UEP (LUEP) block codes of even length, using a Gray mapping, with a QPSK signal set to construct efficient block QPSK modulation codes with nonuniform error protection capabilities for bandwidth efficient transmission over AWGN (additive white Gaussian noise) and Rayleigh fading channels

Effect of crosslinker length on the elastic and compression modulus of poly(acrylamide) nanocomposite hydrogels

Polymer hydrogelshave shown to exhibit improved properties upon the addition of nanoparticles; however, the mechanical underpinnings behind these enhancements have not been fully elucidated. Moreover, fewer studies have focused on developing an understanding of how polymer parameters affect the nanoparticle-mediated enhancements. In this study, we investigated the elastic properties of silica nanoparticle-reinforced poly(acrylamide) hydrogels synthesized using crosslinkers of various lengths. Crosslinker length positively affected the mechanical properties of hydrogels that were synthesized with or without nanoparticles. However the degree of nanoparticle enhancement was negatively correlated to crosslinker length. Our findings enable the understanding of the respective roles of nanoparticle and polymer properties on nanoparticle-mediated enhancement of hydrogels and thereby the development of next-generation nanocomposite materials

Unequal Error Protection QPSK Modulation Codes

The authors use binary linear UEP (LUEP) codes, in combination with a QPSK signal set and Gray mapping, to obtain new efficient block QPSK modulation codes with unequal minimum squared Euclidean distances. They give several examples of codes that have the same minimum squared Euclidean distance as the best QPSK modulation codes of the same rate and length. A new suboptimal two-stage soft-decision decoding is applied to LUEP QPSK modulation codes