Informal Work and Sustainable Cities: From Formalization to Reparation

Informal workers produce economic, social, and environmental value for cities. Too often, policy elites, including those promoting sustainable cities, overlook this value, proposing formalization and relying on deficit-based framings of informal work. In this perspective piece, we bring critical research and community-produced knowledge about informal work to sustainability scholarship. We challenge the dominant, deficit-based frame of informal work, which can dispossess workers, reduce their collective power, and undercut the social and environmental value their work generates. Instead, thinking historically, relationally, and spatially clarifies the essential role of informal work for urban economies and highlights their potential for promoting sustainable cities. It also reveals how growth-oriented economies reproduce environmental destruction, income inequality, and poverty, the very conditions impelling many to informal work. Rather than formalization, we propose reparation, an ethic and practice promoting ecological regeneration, while redressing historic wrongs and redistributing resources and social power to workers and grassroots social movements.

Trends in Ranavirus Prevalence Among Plethodontid Salamanders in the Great Smoky Mountains National Park

Emerging pathogens are a potential contributor to global amphibian declines. Ranaviruses, which infect ectothermic vertebrates and are common in aquatic environments, have been implicated in die-offs of at least 72 amphibian species worldwide. Most studies on the subject have focused on pool-breeding amphibians, and infection trends in other amphibian species assemblages have been understudied. Our primary study objective was to evaluate hypotheses explaining ranavirus prevalence within a lungless salamander assemblage (Family Plethodontidae) in the Great Smoky Mountains National Park, USA. We sampled 566 total plethodontid salamanders representing 14 species at five sites over a 6-year period (2007-2012). We identified ranavirus-positive individuals in 11 of the 14 (78.6%) sampled species, with salamanders in the genus Desmognathus having greatest infection prevalence. Overall, we found the greatest support for site elevation and sampling year determining infection prevalence. We detected the greatest number of infections in 2007 with 82.5% of sampled individuals testing positive for ranavirus, which we attribute to record drought during this year. Infection prevalence remained relatively high in low-elevation sites in 2008 and 2009. Neither body condition nor aquatic dependence was a significant predictor of ranavirus prevalence. Overall, our results indicate that life history differences among species play a minor role determining ranavirus prevalence compared to the larger effects of site elevation and yearly fluctuations (likely due to environmental stressors) during sampling years.

Susceptibility of fish and turtles to three ranaviruses isolated from different ectothermic vertebrate classes

Ranaviruses have been associated with mortality of lower vertebrates around the world. Frog virus 3 (FV3)-like ranaviruses have been isolated from different ectothermic vertebrate classes; however, few studies have demonstrated whether this pathogen can be transmitted among classes. Using FV3-like ranaviruses isolated from the American bullfrog Lithobates catesbeianus, eastern box turtle Terrapene carolina carolina, and Pallid Sturgeon Scaphirhynchus albus, we tested for the occurrence of interclass transmission (i.e., infection) and host susceptibility (i.e., percent mortality) for five juvenile fish and three juvenile turtle species exposed to each of these isolates. Exposure was administered via water bath (10(3) PFU/mL) for 3 d and survival was monitored for 28 d. Florida softshell turtles Apalone ferox experienced no mortality, but 10% and 20% of individuals became infected by the turtle and fish isolate, respectively. Similarly, 5% of Mississippi map turtles Graptemys pseudogeographica kohni were subclinically infected with the turtle isolate at the end of the experiment. Channel Catfish Ictalurus punctatus experienced 5% mortality when exposed to the turtle isolate, while Western Mosquitofish Gambusia affinis experienced 10% mortality when exposed to the turtle and amphibian isolates and 5% mortality when exposed to the fish isolate. Our results demonstrated that interclass transmission of FV3-like ranaviruses is possible. Although substantial mortality did not occur in our experiments, the occurrence of low mortality and subclinical infections suggest that fish and aquatic turtles may function as reservoirs for FV3-like ranaviruses. Additionally, our study is the first to report transmission of FV3-like ranaviruses between fish and chelonians.

The theory and methodology of provider profiling

Physician profiling is the comparison of physician practice patterns to determine the existence and effects of significant differences in outcomes. To optimize care quality, these comparisons can be used to influence provider behavior through awareness when outcomes are poor or do not warrant provider expenditures. To maximize the value of such a technique, the underlying bases for comparison and the uses of derived data must be understood. Several factors must be considered or controlled for when determining comparable providers. Additionally, the worth or significance of findings must also be understood. This paper seeks to provide information in these two areas for the benefit of those responsible for managing care at all levels.

Patients' knowledge of health plan coverage and satisfaction with care

OBJECTIVE

To test the hypothesis that patients' satisfaction with their healthcare is related to their knowledge of their managed care plan.

STUDY DESIGN

A written survey was sent to beneficiaries of the military health system.

PATIENTS AND METHODS

Respondents were active or retired military personnel and their nonmilitary, immediate family members enrolled in either TRICARE Prime, a voluntary, gatekeeper-based managed care program (enrollees), or other military managed care programs (nonenrollees). Responses to 5 questions that measured patients' understanding of their program served as independent variables; satisfaction with care was the dependent variable. Responses were stratified according to whether care was received in a military or a civilian healthcare organization. Analysis of variance (ANOVA) and regression analysis were used to determine the association between the variables.

RESULTS

Enrollees differed from nonenrollees in certain sociodemographic characteristics, with nonenrollees being older (eta 2 = 0.035; P < .01), closer to retirement (eta 2 = 0.051; P < .01), and tending to receive healthcare in military healthcare organizations (HCO) (eta 2 = 0.009; P < .01). After controlling for sociodemographic characteristics, patients' understanding of their coverage served as a poor predictor (military HCO [R2 = 0.003; P < .01]; civilian HCO [R2 = 0.025; P < .01]) of satisfaction with their care.

CONCLUSIONS

Patients' understanding of their coverage appears to be a statistically significant, but rather small, contributor to satisfaction with their care. The study suggests that health plan understanding is a poor predictor of patient satisfaction.

Palladium and Raney nickel catalyzed methanolic cleavage of stable borane-amine complexes

[figure: see text] Palladium and Raney nickel were found to catalyze the methanolysis of borane-amine adducts. Hence, strongly complexed amines can now be liberated by simple treatment with Pd/C or Raney Ni in methanol. The method is applicable to primary, secondary, tertiary, and aromatic amines, and the mildness of the reaction conditions allows preservation of otherwise labile functional groups.

The influence of patient sociodemographic characteristics on patient satisfaction

The patient satisfaction responses of active duty Army patients in military facilities were analyzed to determine (1) if patients differ along sociodemographic characteristics, (2) the predictors of satisfaction, and (3) the sociodemographic characteristics that moderate patients' satisfaction. Regression results suggest that access, communication, outcomes, and quality predict 42% of the variation in patients' satisfaction scores. Additionally, an analysis of variance suggests that patient satisfaction evaluations are significantly different along sociodemographic characteristics excepting marital status and duty location. Finally, patients' sociodemographic characteristics, with the exceptions of gender and marital status, moderate patients' satisfaction. These findings suggest that patients' satisfaction differs significantly along age, rank, gender, education, race, health status, and utilization individually, but this difference predicts only 5% of patients' satisfaction ratings. This study provides areas of consideration for improving active Army patients' satisfaction in military facilities and suggests theoretically and empirically supported ways to prioritize scarce resources and optimize efforts when faced with constraints.

The predictors of quality care

Patients' perceptions of quality are important to the performance ratings, financial viability, and operational options afforded to purchasers of health care. Through TRICARE, the Department of Defense provides care for the more than 1.5 million active duty service members charged with the defense of the nation. As patients, these service members are typically incapable of assessing the technical quality of the care they receive. This study examines the attributes of health care delivery that define military patients' perceptions of quality and discusses the implications of these assessments.

The importance of caring as a determinant of patient satisfaction among active duty beneficiaries

The satisfaction scores of active duty Department of Defense beneficiaries with the medical care they receive in military facilities are compared to test the hypothesis that caring is a primary determinant of patient evaluations. Patient satisfaction scores and sociodemographic and social psychological correlates of patient satisfaction were regressed to illuminate the attributes patients use to judge their health care experiences. Results show that very specific interpersonal aspects, such as reassurance, support, and interest in outcomes of the care experience, are important to patients.

A deconvolution technique for improved estimation of rapid changes in ion concentration recorded with ion-selective microelectrodes

In biological preparations, measurements of rapid, stimulus-evoked changes in ion concentration by ion-selective microelectrodes can be distorted by the limited bandwidth of these sensors. Techniques were developed to reconstruct the actual change in ion concentration using deconvolution of the electrode's output signal and the electrode's transfer function. In the vertebrate retina, a knowledge of the actual time course of a light-evoked increase in extracellular K+ concentration was used to provide a rigorous test of a hypothesis regarding the electrical origin of a clinically important component of the electroretinogram.

Lovastatin decreases coenzyme Q levels in rats

Lovastatin is used for the treatment of hypercholesterolemia. It functions by inhibiting the enzyme, 3-hydroxy-3-methylglutaryl-coenzyme A reductase (EC 1.1.1.34), that is required for the conversion of 3-hydroxy-3-methylglutaryl-coenzyme A to mevalonic acid. Since biosynthesis of both cholesterol and coenzyme Q (CoQ) requires mevalonic acid as a precursor, it was considered that lovastatin therapy would also result in a lowering of cellular CoQ levels. This study was conducted to determine whether lovastatin treatment does decrease CoQ levels and whether such decreases can be prevented by CoQ supplementation. Forty-five adult male Holtzman rats were randomly assigned to one of three treatment groups. Controls were fed ground laboratory rat chow ad libitum. The other two groups were fed ground laboratory rat chow containing 400 mg of lovastatin per kg of diet ad libitum. One of the lovastatin-fed groups received CoQ10 (15 mg per kg of body weight) daily via stomach intubation. After 4 weeks, samples of heart, liver, and blood were analyzed for CoQ concentrations. Results indicated that CoQ concentrations in all tissues analyzed were decreased in lovastatin-treated rats. Lovastatin-treated animals that were supplemented with CoQ10 had blood, heart, and liver CoQ10 concentrations that approximated or exceeded those of control animals. It is concluded that lovastatin does indeed lower tissue concentrations of CoQ and that a return to normal can be achieved by supplementation with CoQ.