New composites produced with recycled waste are needed to manufacture more sustainable construction materials. This paper aimed to analyze the hygrothermal and mechanical performance of plasterboard with a polymethylhydrosiloxane (PMHS) content, incorporating recycled PET microplastic waste and varying factors such as PMHS dose, homogenization time, and drying temperature after setting. A cube-centered experimental design matrix was performed.
View Article and Find Full Text PDFAdult smokers, those with comorbidities, and the elderly, are at greater risk of contracting infections and their complications. Community acquired respiratory infections due to viruses, pneumococcus and other bacteria, affect both healthy and sick adults. There are vaccines that the pulmonologist must know and prescribe.
View Article and Find Full Text PDFPlasterboard is an important building material in the construction industry because it allows for quick installation of walls, partitions, and ceilings. Although a common material, knowledge about its performance related to modern polymers and fabrication conditions is still lacking. The present work analyzes how some manufacturing factors applied during the plaster board fabrication impact on some plasterboard properties, including water absorption, flexural strength, and thermal conductivity.
View Article and Find Full Text PDFBackground: Lung cancer (LC) screening improves LC survival; the best screening method in terms of improving survival is low-dose CT (LDCT), outpacing chest X-ray and sputum cytology.
Methods: A consensus of experts in Argentina was carried out to review the literature and generate recommendations for LC screening programmes. A mixed-method study was used with three phases: (1) review of the literature; (2) modified Delphi consensus panel; and (3) development of the recommendations.
Purpose: Depression and anxiety are psychiatric disorders related to chronic stress, commonly found in patients with drug-resistant epilepsy (DRE) and functional dissociative seizures (FDS). The present study compares the levels of perceived stress, resilience, and the styles of stress coping among patients with DRE (n=60), FDS (n=28), and controls (n=31).
Methods: We performed a cross-sectional study.
Background: Immune-checkpoint inhibitors (ICIs) are standard treatments for metastatic non-small cell lung cancer (NSCLC). Patients with poor performance status (PS) are underrepresented in clinical trials. We evaluate the efficacy and safety of ICIs in a real-world setting.
View Article and Find Full Text PDFArch Bronconeumol (Engl Ed)
March 2018
Objective: To investigate the burden of asthma in a young adult population in urban areas of Argentina.
Design: A nationwide telephone survey in subjects aged 20-44 years was performed in urban areas in Argentina. The European Community Respiratory Health Survey questionnaire was used.
Introduction: Previous evidence linked low socioeconomic status with higher smoking prevalence. Our objective was to assess the strength of this association in the world population, updating a previous work.
Methods: Systematic review and meta-analysis of observational studies.
Background: A multi-step causality pathway connecting short sleep duration to daytime somnolence and sleepiness leading to reduced attention and poor academic performance as the final result can be envisaged. However this hypothesis has never been explored.
Objective: To explore consecutive correlations between sleep duration, daytime somnolence, attention levels, and academic performance in a sample of school-aged teenagers.
Int J Tuberc Lung Dis
April 2011
Background: Community-acquired pneumonia (CAP) severity scores can identify patients at low risk for mortality who may be suitable for ambulatory care. Here, we follow the clinical course of hospitalized patients with CAP due to 2009 H1N1 influenza.
Objective: To evaluate the role of CAP severity scores as predictors of mortality.
Objective: Acute hypobaric hypoxia is associated with autonomic changes that bring a global reduction of linear heart rate variability (HRV). Although changes in nonlinear HRV can be associated with physiologic stress and are relevant predictors of fatal arrhythmias in ischemic heart disease, to what extent these components vary in sudden hypobaric hypoxia is not known.
Methods: Twelve military pilots were supplemented with increasing concentrations of oxygen during decompression to 8230 m in a hypobaric chamber.
Obesity causes or exacerbates a host of medical conditions, including cardiovascular, pulmonary, and endocrine diseases. In addition, there is growing evidence that obesity and sleep problems are linked in adolescents and that they are significant obstacles for learning, having a negative impact on behavior, and attainment of social competence and quality of life. The theoretical basis of this relationship is discussed.
View Article and Find Full Text PDFA committee of six scientific organizations from Argentina developed guidelines for the management of patients with community-acquired pneumonia (CAP).The objective of this study was to evaluate the level of adherence with the recommended care suggested by the guidelines in patients hospitalized with CAP in Argentina. Using quality indicators the management of 436 patients who were hospitalized in 12 Argentinean institutions was evaluated.
View Article and Find Full Text PDFStudy Objectives: Inadequate sleep and sleep disordered breathing (SDB) can impair learning skills. Questionnaires used to evaluate sleepiness in adults are usually inadequate for adolescents. We conducted a study to evaluate the performance of a Spanish version of the Pediatric Daytime Sleepiness Scale (PDSS) and to assess the impact of sleepiness and SDB on academic performance.
View Article and Find Full Text PDFActa Obstet Gynecol Scand
September 2007
Background: Snoring is common in pregnancy, but there are only a few studies that have investigated the relationship of snoring and pregnancy complications. We aimed to investigate the relationship of snoring and witnessed sleep apnoeas with pregnancy-induced hypertension.
Methods: A questionnaire was administered on the day of delivery to 456 women at the Department of Obstetrics, Hospital Donación F.
Road accidents are a major cause of death, and sleep deprivation affects driving skills. We conducted a cross-sectional study to evaluate sleep habits and accident risk in long-haul truck drivers in Buenos Aires, Argentina. Questionnaires regarding sleep habits, snoring, and daytime sleepiness were administered, and a limited physical examination was performed.
View Article and Find Full Text PDFWe investigated the effects of a saturated fat diet on lipid metabolism and arachidonic acid (AA) turnover in mouse resident peritoneal macrophages. The pro-oxidative effect of this diet was also studied. Female C57BL/6 mice were weaned at 21 days of age and assigned to either the experimental diet containing coconut oil (COCO diet), or the control diet containing soybean oil as fat source (10 mice per group).
View Article and Find Full Text PDFWe investigated the effects of a saturated fat diet on mice lipid metabolism in resident peritoneal macrophages. Male C57BL/6 mice were weaned at 21 days of age and assigned to either the experimental diet, containing coconut oil (COCO diet), or the control diet, containing soybean oil as fat source. Fat content of each diet was 15% (w/w).
View Article and Find Full Text PDFObjective: To survey the etiology and epidemiology of community-acquired pneumonia (CAP) in relation to age, comorbidity, and severity and to investigate prognostic factors.
Design: Prospective epidemiologic study, single center.
Setting: University hospital at Buenos Aires, Argentina.
Study Objectives: To define the usefulness of blood cultures for confirming the pathogenic microorganism and severity of illness in patients with ventilator-associated pneumonia (VAP).
Design: Prospective observational study using BAL and blood cultures collected within 24 h of establishing a clinical diagnosis of VAP.
Setting: A 15-bed medical and surgical ICU.