Book review: Guide to L ATEX, 4 th Edition

I believe I should point out at the beginning that my wife has a t-shirt which reads “My next husband will be normal”. However the problem is deeper than that. I seem to be attracted to groups where the whole membership is not normal, for example, the local Linux users group. Reading the Kopka and Daly book I have come to the conclusion that one should not consider TEX users to be normal either. And I think it is important to keep this in mind. This whole issue arose when I started by looking at the cover and introductory material to see what the authors ’ objective was. I found “how to begin using LATEX ” right on the back cover. Against this backdrop I began to read. By chapter 2 I began t

Job satisfaction and job performance in the media industry: A synergistic application of partial least squares path modelling

Purpose – The purpose of this paper is to examine the relationship between job satisfaction and employee performance in the media industry as well as the role of demographic variables, namely, age, gender, income, marital status, and the level of education as categorical moderators on this relationship. Design/methodology/approach – A total of 220 valid questionnaires were collected from employees in the Malaysian media industry to examine the goodness of model fit, sign indeterminacy, measurement model, and structural relationships between constructs. Using partial least squares (PLS) path modelling, this study introduces a full-fledged structural equation modelling approach by applying ADANCO 1.1 advanced composite modelling and SmartPLS 3.2.3. PLS-multi-group analysis is applied to examine the heterogeneity of data and test the hypotheses on moderating variables. Findings – Payment, promotion, supervision, operating conditions, co-workers, and nature of the work were found to be conducive to employees’ job performance, among which co-workers generated the highest path coefficient followed by operating conditions, payment, and promotion. Hypotheses on the relationships between fringe benefits, contingent rewards, communication, and job performance were rejected. Age, gender, and level of education were found as moderators to the relationship between facets of job satisfaction and employees’ job performance. Practical implications – The results of importance performance map analysis can help managers and decision makers to prioritize their actions. The findings show that co-workers and operating conditions have the highest importance and payment and contingent rewards have the highest performance on job performance in the media industry. Originality/value – This study is among the few that investigates the relationship between job satisfaction and job performance in the media industry by considering demographic factors as the moderating variables. This study also contributes methodologically through the introduction of a synergistic PLS approach

Simplified HIV Testing and Treatment in China: Analysis of Mortality Rates Before and After a Structural Intervention.

BackgroundMultistage stepwise HIV testing and treatment initiation procedures can result in lost opportunities to provide timely antiretroviral therapy (ART). Incomplete patient engagement along the continuum of HIV care translates into high levels of preventable mortality. We aimed to evaluate the ability of a simplified test and treat structural intervention to reduce mortality.Methods and findingsIn the "pre-intervention 2010" (from January 2010 to December 2010) and "pre-intervention 2011" (from January 2011 to December 2011) phases, patients who screened HIV-positive at health care facilities in Zhongshan and Pubei counties in Guangxi, China, followed the standard-of-care process. In the "post-intervention 2012" (from July 2012 to June 2013) and "post-intervention 2013" (from July 2013 to June 2014) phases, patients who screened HIV-positive at the same facilities were offered a simplified test and treat intervention, i.e., concurrent HIV confirmatory and CD4 testing and immediate initiation of ART, irrespective of CD4 count. Participants were followed for 6-18 mo until the end of their study phase period. Mortality rates in the pre-intervention and post-intervention phases were compared for all HIV cases and for treatment-eligible HIV cases. A total of 1,034 HIV-positive participants (281 and 339 in the two pre-intervention phases respectively, and 215 and 199 in the two post-intervention phases respectively) were enrolled. Following the structural intervention, receipt of baseline CD4 testing within 30 d of HIV confirmation increased from 67%/61% (pre-intervention 2010/pre-intervention 2011) to 98%/97% (post-intervention 2012/post-intervention 2013) (all p < 0.001 [i.e., for all comparisons between a pre- and post-intervention phase]), and the time from HIV confirmation to ART initiation decreased from 53 d (interquartile range [IQR] 27-141)/43 d (IQR 15-113) to 5 d (IQR 2-12)/5 d (IQR 2-13) (all p < 0.001). Initiation of ART increased from 27%/49% to 91%/89% among all cases (all p < 0.001) and from 39%/62% to 94%/90% among individuals with CD4 count ≤ 350 cells/mm3 or AIDS (all p < 0.001). Mortality decreased from 27%/27% to 10%/10% for all cases (all p < 0.001) and from 40%/35% to 13%/13% for cases with CD4 count ≤ 350 cells/mm3 or AIDS (all p < 0.001). The simplified test and treat intervention was significantly associated with decreased mortality rates compared to pre-intervention 2011 (adjusted hazard ratio [aHR] 0.385 [95% CI 0.239-0.620] and 0.380 [95% CI 0.233-0.618] for the two post-intervention phases, respectively, for all newly diagnosed HIV cases [both p < 0.001], and aHR 0.369 [95% CI 0.226-0.603] and 0.361 [95% CI 0.221-0.590] for newly diagnosed treatment-eligible HIV cases [both p < 0.001]). The unit cost of an additional patient receiving ART attributable to the intervention was US$83.80. The unit cost of a death prevented because of the intervention was US$234.52.ConclusionsOur results demonstrate that the simplified HIV test and treat intervention promoted successful engagement in care and was associated with a 62% reduction in mortality. Our findings support the implementation of integrated HIV testing and immediate access to ART irrespective of CD4 count, in order to optimize the impact of ART

Maximizing remanufacturing profit using product acquisition management

The profitability of remanufacturing depends on the quantity and quality of product returns and on the demand for remanufactured products. The quantity and quality of product returns can be influenced by varying quality dependent acquisition prices, i.e., by using product acquisition management. Demand can be influenced by varying the selling price. We develop a framework for determining the optimal prices and the corresponding profitability

The High Voltage Feedthroughs for the ATLAS Liquid Argon Calorimeters

The purpose, design specifications, construction techniques, and testing methods are described for the high voltage feedthrough ports and filters of the ATLAS Liquid Argon calorimeters. These feedthroughs carry about 5000 high voltage wires from a room-temperature environment (300 K) through the cryostat walls to the calorimeters cells (89 K) while maintaining the electrical and cryogenic integrity of the system. The feedthrough wiring and filters operate at a maximum high voltage of 2.5 kV without danger of degradation by corona discharges or radiation at the Large Hadron Collider

CASTRO: A New Compressible Astrophysical Solver. II. Gray Radiation Hydrodynamics

We describe the development of a flux-limited gray radiation solver for the compressible astrophysics code, CASTRO. CASTRO uses an Eulerian grid with block-structured adaptive mesh refinement based on a nested hierarchy of logically-rectangular variable-sized grids with simultaneous refinement in both space and time. The gray radiation solver is based on a mixed-frame formulation of radiation hydrodynamics. In our approach, the system is split into two parts, one part that couples the radiation and fluid in a hyperbolic subsystem, and another parabolic part that evolves radiation diffusion and source-sink terms. The hyperbolic subsystem is solved explicitly with a high-order Godunov scheme, whereas the parabolic part is solved implicitly with a first-order backward Euler method.Comment: accepted for publication in ApJS, high-resolution version available at https://ccse.lbl.gov/Publications/wqzhang/castro2.pd