In the present study, we examined the effects of different drying conditions on the composition, structure and function of benthic invertebrate assemblages. We approached this objective by comparing ...invertebrate assemblages in perennial and intermittent sites along two intermittent Mediterranean streams with contrasting predictability, duration, and spatial patterns of drying: Fuirosos (high predictability, short duration, downstream drying pattern) and Rogativa (low predictability, long duration, patchy drying pattern). Specifically, we quantified the contribution of individual taxa to those differences, the degree of nestedness, and shifts in the composition, structure and function of benthic invertebrate assemblages along flow intermittence gradients. We observed greater effects of drying on the benthic invertebrate composition in Fuirosos than in Rogativa, resulting in a higher dissimilarity of assemblages between perennial and intermittent sites, as well as a lower degree of nestedness. Furthermore, a higher number of biotic metrics related to richness, abundance and biological traits were significantly different between perennial and intermittent sites in Fuirosos, despite a shorter dry period compared to Rogativa. At the same time, slightly different responses were detected during post-drying (autumn) than pre-drying (spring) conditions in this stream. In Rogativa, shifts in benthic invertebrate assemblages along increasing gradients of flow intermittence were found for three metrics (Ephemeroptera, Plecoptera and Trichoptera (EPT) and Odonata, Coleoptera and Heteroptera (OCH) abundances and aerial active dispersal. Furthermore, we demonstrated that combined gradients of dry period duration and distance to nearest perennial reach can generate complex, and different, responses of benthic invertebrate assemblages, depending on the flow intermittence metric. Our study advances the notion that special attention should be paid to the predictability, duration and spatial patterns of drying in intermittent streams in order to disentangle the effects of drying on benthic invertebrate assemblages, in particular in areas subject to high spatial heterogeneity and temporal variability in drying conditions.
In this article, robust confidence intervals for PM2.5 (particles with size less than or equal to 2.5 μ m ) concentration measurements performed in La Carolina Park, Quito, Ecuador, have been ...built. Different techniques have been applied for the construction of the confidence intervals, and routes around the park and through the middle of it have been used to build the confidence intervals and classify this urban park in accordance with categories established by the Quito air quality index. These intervals have been based on the following estimators: the mean and standard deviation, median and median absolute deviation, median and semi interquartile range, a -trimmed mean and Winsorized standard error of order a , location and scale estimators based on the Andrew’s wave, biweight location and scale estimators, and estimators based on the bootstrap- t method. The results of the classification of the park and its surrounding streets showed that, in terms of air pollution by PM2.5, the park is not at caution levels. The results of the classification of the routes that were followed through the park and its surrounding streets showed that, in terms of air pollution by PM2.5, these routes are at either desirable, acceptable or caution levels. Therefore, this urban park is actually removing or attenuating unwanted PM2.5 concentration measurements.
The aim of this research is to analyse the performance of the extended producer responsibility model for the management of end-of-life tires (ELTs) in Ecuador that has been implemented since 2013. ...For this research, we conducted case studies of, and subsequently, a comparative analysis between, the ELT management system in Ecuador with respect to the ELT management models in Colombia and Brazil. Our findings show that although the programme implementation represented a significant advance in Ecuador's waste management system there are important challenges that should be considered in future adaptations of the programme. Among the measures that can be adopted to improve the ELT management system are the consolidation and stimulation of the market for products made from ELT waste; promotion of other productive sectors linked to the creation of new products and sectors that generate complementary products; enhancement of the generation, socialization and access to knowledge of the waste by-products for micro-, small- and medium-sized enterprises; increase the tire consumer fee, known as 'Ecovalor' and improvement of the quality and availability of information and indicators regarding ELT management. In this sense, the experiences of Colombia and Brazil show important lessons for the Ecuadorian case.
In this article, a robust statistical analysis of particulate matter (PM2.5) concentration measurements is carried out. Here, the region chosen for the study was the urban park La Carolina, which is ...one of the most important in Quito, Ecuador, and is located in the financial center of the city. This park is surrounded by avenues with high traffic, in which shopping centers, businesses, entertainment venues, and homes, among other things, can be found. Therefore, it is important to study air pollution in the region where this urban park is located, in order to contribute to the improvement of the quality of life in the area. The preliminary study presented in this article was focused on the robust estimation of both the central tendency and the dispersion of the PM2.5 concentration measurements carried out in the park and some surrounding streets. To this end, the following estimators were used: (i) for robust location estimation: α-trimmed mean, trimean, and median estimators; and (ii) for robust scale estimation: median absolute deviation, semi interquartile range, biweight midvariance, and estimators based on a subrange. In addition, nonparametric confidence intervals were established, and air pollution levels due to PM2.5 concentrations were classified according to categories established by the Quito Air Quality Index. According to these categories, the results of the analysis showed that neither the streets that border the park nor the park itself are at the Alert level. Finally, it can be said that La Carolina Park is fulfilling its function as an air pollution filter.
Child trafficking is widely recognized as one of the critical issues of our day, prompting calls to action at the global, national, and local levels. Yet it is unclear whether the strategies and ...tools used to counter this exploitation—most of which involve law enforcement and social services—have actually reduced the prevalence of trafficking.
In Preventing Child Trafficking, Jonathan Todres and Angela Diaz explore how the public health field can play a comprehensive, integrated role in preventing, identifying, and responding to child trafficking. Describing the depth and breadth of trafficking's impact on children while exploring the limitations in current responses, Todres and Diaz argue that public health frameworks offer important insights into the problem, with detailed chapters on how professionals and organizations can identify and respond effectively to at-risk and trafficked children.
Drawing on the authors' years of experience working on this issue—Diaz is a doctor at a frontline medical center serving at-risk youth, victims, and survivors; Todres is a legal expert on legislative and policy initiatives to address child trafficking—the book maps out a public health approach to child trafficking, the role of the health care sector, and the prospects for building a comprehensive response. Providing readers with advice geared toward better understanding trafficking's root causes, this revelatory book concludes by mapping out a public health toolkit that can be used by anyone who is interested in preventing child trafficking, from policymakers to professionals who work with children.
Health care professionals and patients are partners in health care delivery, and this partnership is critical in the treatment of adolescents. International children's rights law establishes that all ...children have a right to participate in decisions that affect their lives. Fulfillment of that right is as critical in health care settings as any other area of children's lives.
In this article we examine the right to participate under international children's rights law, its relevance to health care settings, and how health care professionals can foster adolescents' participation to fulfill children's rights and improve health care outcomes.
The Convention on the Rights of the Child establishes a legal mandate—where ratified—that adolescents have the right to express their views in health care settings and that such views must be given due consideration. In many health care settings, adolescents are not adequately consulted or have limited opportunities to express their views. A review of research finds that both processes and outcomes can improve when youth participation is cultivated.
Health care providers and organizations have numerous opportunities to cultivate adolescent's participation rights and in doing so improve health care delivery and outcomes. Health care providers and organizations should further develop structures and processes to ensure opportunities for children and adolescents to be heard on matters relevant to their health care and health status. Creating opportunities for adolescents to realize their right to participate means engaging youth at every stage in the process, beginning with the design of such opportunities. It also means addressing all aspects of health care, from the built environment to patient-provider communication to follow-up services, so that the entire process fosters an environment conductive to meaningful participation by adolescents.
The genetic erosion of the European grapevine diversity in the last century has promoted the conservation of varieties in germplasm banks to prevent their disappearance. The study of these varieties ...is necessary as it would allow the diversification of the wine market, as well as provide a source of genes to face new pathogens or climate constraints. In this work, the grapevine varieties preserved in the "Estación de Viticultura e Enoloxía de Galicia" (EVEGA) Germplasm Bank (Ourense, Spain) were widely characterized, combining ampelography, ampelometry, agronomy, and phytopathology. Moreover, genetic characterization was carried out through the analysis of 48 single-nucleotide polymorphisms (SNPs). A Bayesian analysis based on the SNP data was carried out to define the genetic structure of the EVEGA Germplasm Bank, which allowed the differentiation of two main reconstructed panmictic populations (RPPs), confirming previous results obtained based on microsatellite markers (SSRs). A great diversity between varieties was found for almost every parameter evaluated for ampelography, ampelometry, phytopatology, phenology, and berry quality. A principal component analysis (PCA) performed with these phenotypical data allowed discrimination among some groups of varieties included in different genetic populations. This study allowed us to evaluate the grapevine diversity maintained in the EVEGA Germplasm Bank and characterize varieties of potential value for breeding programs of interest for the Galician viticulture.
Summary Background Use of raltegravir with optimum background therapy is effective and well tolerated in treatment-experienced patients with multidrug-resistant HIV-1 infection. We compared the ...safety and efficacy of raltegravir with efavirenz as part of combination antiretroviral therapy for treatment-naive patients. Methods Patients from 67 study centres on five continents were enrolled between Sept 14, 2006, and June 5, 2008. Eligible patients were infected with HIV-1, had viral RNA (vRNA) concentration of more than 5000 copies per mL, and no baseline resistance to efavirenz, tenofovir, or emtricitabine. Patients were randomly allocated by interactive voice response system in a 1:1 ratio (double-blind) to receive 400 mg oral raltegravir twice daily or 600 mg oral efavirenz once daily, in combination with tenofovir and emtricitabine. The primary efficacy endpoint was achievement of a vRNA concentration of less than 50 copies per mL at week 48. The primary analysis was per protocol. The margin of non-inferiority was 12%. This study is registered with ClinicalTrials.gov , number NCT00369941. Findings 566 patients were enrolled and randomly allocated to treatment, of whom 281 received raltegravir, 282 received efavirenz, and three were never treated. At baseline, 297 (53%) patients had more than 100 000 vRNA copies per mL and 267 (47%) had CD4 counts of 200 cells per μL or less. The main analysis (with non-completion counted as failure) showed that 86·1% (n=241 patients) of the raltegravir group and 81·9% (n=230) of the efavirenz group achieved the primary endpoint (difference 4·2%, 95% CI −1·9 to 10·3). The time to achieve such viral suppression was shorter for patients on raltegravir than on efavirenz (log-rank test p<0·0001). Significantly fewer drug-related clinical adverse events occurred in patients on raltegravir (n=124 44·1%) than those on efavirenz (n=217 77·0%; difference −32·8%, 95% CI −40·2 to −25·0, p<0·0001). Serious drug-related clinical adverse events occurred in less than 2% of patients in each drug group. Interpretation Raltegravir-based combination treatment had rapid and potent antiretroviral activity, which was non-inferior to that of efavirenz at week 48. Raltegravir is a well tolerated alternative to efavirenz as part of a combination regimen against HIV-1 in treatment-naive patients. Funding Merck.
Abstract
This study investigates the disruptive effect of the COVID-19 lockdown on the relationship between environmental beliefs and pro-environmental behaviors. We used a survey conducted in the ...four major cities of Colombia before COVID-19 arrived in December 2019 and then repeated it in October 2020, after most of the major restrictions on mobility and economic activity had been lifted. The survey captured ecocentric and anthropocentric beliefs using the New Ecological Paradigm (NEP) and Pro Environmental Behaviors (PEBS) using 18 questions about energy and water savings, recycling, and sustainable purchasing. In the 2020 survey, we included a measure of the severity of the individual’s experience of disruption, including economic, family, and health-related aspects. Controlling for demographic variables, we analyzed (1) descriptive changes in NEP and PEBS, (2) the moderating effect of the disruption on the effect of NEP on PEBS, (3) the direct effect of disruption severity on PEBS, and (4) the moderating effect of severity on the effect of NEP on PEBS in 2020. We found that disruption caused by the lockdown crisis decreased anthropocentric beliefs and slightly increased ecocentric beliefs. This disruption also modified the effects of NEP on PEBS, thereby ameliorating the capacity of NEP to activate PEBS. The severity of experience moderated most of these effects. We discuss the implications of our results for the theory of environmental beliefs and pro-environmental behaviors and offer recommendations to reverse the potential negative effect of the COVID-19 crisis on the promotion of sustainable consumption.
PDF
