Tuning the Photochromic Properties of WO3-Based Materials toward High-Performance Light-Responsive Textiles

The development of photoresponsive textiles with high color contrast, sunlight response, fast coloration/bleaching, and reversible properties has been a major quest for anticounterfeiting, camouflage, UV protection, and fashion. WO3 materials are promising building blocks for textile applications, but their application has been limited by their slow color bleaching under ambient conditions and limited sunlight response. Herein, innovative tungsten oxide-based materials with tunable photochromism were produced by a low-cost, single-step, and scalable solvothermal process in the presence of different structure-directing agents, and the most promising ones were screen-printed on fabrics to produce light-responsive smart textiles. The influence of the structure-directing agent type (polyethylene glycol, hexadecyltrimethylammonium bromide, polyoxyethylene(10) cetyl ether, Pluronic F127, and polyvinylpyrrolidone (PVP)) on the morphology, structure, composition and photochromism of the WO3-based materials was assessed, toward enhancing their color contrast and coloration/bleaching rates and endowing a sunlight response. All WO3-based materials exhibited UV/sunlight-responsive properties, with the materials prepared with PVP presenting the best performance, featuring 13× faster coloration than that of other WO3-based materials reported in the literature (7 min vs 60–90 min) and up to 2× higher total color difference (21.4–50.6 vs 25.2–25.8). These improvements were assigned to their Lindqvist-type hexatungstic acid structure hybridized with PVP, while the remaining materials were composed of WO3·H2O and WO3. The WO3_PVP-based materials led to high-performance photoswitchable textiles under sunlight and UV irradiation, changing color from white to blue in 3–7 min and bleaching in 3–7 h. The smart textiles presented fast hydrobleaching, especially the fabric based on WO3 prepared using PVP with higher molecular weight, which hydrobleached in up to 20 s, surpassing reported works on WO3-modified fibers. This work opens horizons for the design of engineered UV/sunlight-responsive WO3-based materials and textiles with hydrobleaching properties through straightforward scalable processes, offering potential prospects for smart clothing and optical sensors

The “Lucifer Effect” and “The Established and Outsiders”: Different power practices or facets of the same contract? / O "Efeito Lúcifer" e "Os Estabelecidos e os Forasteiros": Diferentes práticas de poder ou facetas de um mesmo contrato?

Power is defined, like everywhere, as asymmetric control over valued resources in a social relationship. This paper aimed to discuss the concepts of power from the perspective of the "Lucifer Effect and the "The Established and the Outsiders: Sociology of power relations from a small community". The methodology is composed by bibliographical research Scopus Database. Based on the performed analysis, it was observed that the concepts of power determined by the informal relationship in the workplace, power determined by leadership, rational-legal authority coercive power and referent power were found both in Lucifer Effect and in Elias' work. Furthermore, the concepts of power determined by the environment, power determined by the authority in charge and charismatic authority were only found in the Lucifer Effect. In Elias’ work, the concepts of power determined by the society, traditional authority and legitimate power were found

Ecotoxicological effects of lanthanum in Mytilus galloprovincialis: biochemical and histopathological impacts

Inappropriate processing and disposal of electronic waste contributes to the contamination of aquatic systems by various types of pollutants such as the rare-earth elements (REE) in which lanthanum (La) is included. Knowledge on the toxicity of these elements in marine organisms is still scarce when compared to other metals such as mercury (Hg) and arsenic (As). Therefore, this study aims to assess the toxicity of La on the mussel Mytilus galloprovincialis, considered a good bioindicator of aquatic pollution, through the analysis of metabolic, oxidative stress, neurotoxicity and histopathological markers. Organisms were exposed to different concentrations of La for a period of 28 days (0, 0.1, 1, 10 mg/L) under controlled temperature (18 °C ± 1.0) and salinity (30 ± 1) conditions. La concentrations in mussels increased in higher exposure concentrations. La exposure demonstrated a biochemical response in mussels, evidenced by lowered metabolism and accumulation of energy reserves, activation of the antioxidant defences SOD and GPx as well as the biotransformation enzymes GSTs, especially at intermediate concentrations. Despite oxidative stress being shown by a decrease in GSH/GSSG, oxidative damage was avoided as evidenced by lower LPO and PC levels. Inhibition of the enzyme AChE demonstrated the neurotoxicity of La in this species. Histopathological indices were significantly different from the control group, indicating impacts in gonads, gills and digestive glands of mussels due to La. These results show that La can be considered a risk for marine organisms and thus its discharge into the environment should be monitored.publishe

Epilepsia en niños atendidos en el Hospital Nacional Cayetano Heredia de Lima, Perú, 2010- 2016.

La epilepsia es la principal causa de consulta neurológica en niños peruanos. Sin embargo, hay escasa información sobre sus características clínicas y epidemiológicas. Objetivos: Presentar las características clínicas de los niños epilépticos atendidos en el Hospital Cayetano Heredia, entre los años 2010 y 2016. Material y métodos: Se realizó un estudio observacional descriptivo, retrospectivo, tipo serie de casos, basado en las historias clìnicas de en niños menores de 14 años con diagnóstico de epilepsia, seguimiento clínico, registro electroencefalogràfico y neuroimagenes. Resultados: Se incluyeron 193 pacientes. El 47,2% (91/193) presentaron su primera crisis epiléptica antes del año de edad, cuya etiología fue secundaria en el 59,3% (54/91), destacando los factores perinatales y las malformaciones cerebrales. La etiología primaria fue más frecuente en los niños que iniciaron las crisis después del año de edad. Las crisis generalizadas se presentaron en 64,2% (124/193) sin diferencias por grupos etarios. El 69,9% (135/193) fueron controlados con un solo fármaco, en tanto que el 15% (29/193) fueron refractarios al tratamiento. La comorbilidad ocurrió en el 68,4% (132/193), siendo frecuentes el retraso del desarrollo psicomotor, el retardo mental y la parálisis cerebral. Conclusiones: La mayoría de los niños presentaron su primera crisis antes del año de edad, generalmente de causa secundaria. En los niños mayores fue prevalente la etiología primaria. La mayoría fueron controlados con monoterapia, pero se registró un porcentaje de refractariedad al tratamiento. La comorbilidad fue muy frecuente

Social mobility and healthy behaviours from a gender perspective in the Spanish multicase-control study (MCC-Spain)

There is evidence for the influence of socioeconomic status (SES) on healthy behaviours but the effect of social mobility (SM) is not yet well known. This study aims to analyse the influence of origin and destination SES (O-SES and D-SES) and SM on healthy behaviours and co-occurrence, from an integrated gender and age perspective. Data were obtained from the controls of MCC-Spain between 2008-2013 (3,606 participants). Healthy behaviours considered: healthy diet, moderate alcohol consumption, non-smoking and physical activity. SM was categorized as stable high, upward, stable medium, downward or stable low. Binary and multinomial logistic regression models were adjusted. Those aged <65, with a low O-SES, D-SES and stable low SM are less likely to have healthy behaviours in the case of both women (physically active: OR = 0.65 CI = 0.45-0.94, OR = 0.71 CI = 0.52-0.98, OR = 0.61 CI = 0.41-0.91) and men (non-smokers: OR = 0.44 CI = 0.26-0.76, OR = 0.54 CI = 0.35-0.83, OR = 0.41 CI 0.24-0.72; physically active: OR = 0.57 CI = 0.35-0.92, OR = 0.64 CI = 0.44-0.95, OR = 0.53 CI = 0.23-0.87). However, for those aged ≥65, this probability is higher in women with a low O-SES and D-SES (non-smoker: OR = 8.09 CI = 4.18-15.67, OR = 4.14 CI = 2.28-7.52; moderate alcohol consumption: OR = 3.00 CI = 1.45-6.24, OR = 2.83 CI = 1.49-5.37) and in men with a stable low SM (physically active: OR = 1.52 CI = 1.02-1.26). In the case of men, the same behaviour pattern is observed in those with a low O-SES as those with upward mobility, with a higher probability of co-occurring behaviours (three-to-four behaviours: OR = 2.00 CI = 1.22-3.29; OR = 3.13 CI = 1.31-7.48). The relationship of O-SES, D-SES and SM with healthy behaviours is complex and differs according to age and gender.This research was supported by the “Acción Transversal del Cancer”, approved by the Spanish Council of Ministers on 11th October 2007, by the Instituto de Salud Carlos III-FEDER [grant number:PI08/1770, PI08/0533, PI08/1359, PS09/00773-Cantabria, PS09/01286-León, PS09/01903-Valencia, PS09/02078-Huelva, PS09/ 01662-Granada, PI11/01403, PI11/01889-FEDER, PI11/00226, PI11/01810, PI11/02213, PI12/00488, PI12/00265, PI12/01270, PI12/00715, PI12/00150, PI14/01219, PI14/0613, PI15/00069, PI15/00914, PI15/01032, PI11/01810, PI14/01219, PI11/02213, PIE16/00049, PI17/01179, PI17-00092], by the Fundación Marqués de Valdecilla [grant number: API 10/09], by the ICGC International Cancer Genome Consortium CLL (The ICGC CLL-Genome Project is funded by Spanish Ministerio de Economía y Competitividad (MINECO) through the Instituto de Salud Carlos III (ISCIII)), by the Red Temática de Investigación del Cáncer (RTICC) del ISCIII [grant number: RD12/0036/0036], by the Junta de Castilla y León [grant number: LE22A10-2], by the Consejería de Salud of the Junta de Andalucía [grant number: PI-0571-2009, PI-0306-2011, salud201200057018tra], by the Conselleria de Sanitat of the Generalitat Valenciana [grant number: AP_061/10], by the Recercaixa [grant number: 2010ACUP00310], by the Regional Government of the Basque Country, by the Consejería de Sanidad de la Región de Murcia, by the European Commission [grant number: FOOD-CT-2006-036224-HIWATE], by the Spanish Association Against Cancer (AECC) Scientific Foundation [grant number: GCTRA18022MORE], by the Catalan Government-Agency for Management of University and Research Grants (AGAUR) [grant number: 2014SGR647, 2014SGR850 and 2017SGR723], by the Fundación Caja de Ahorros de Asturias and by the University of Oviedo. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.S

The Efficacy of Exercise in Reducing Depressive Symptoms among Cancer Survivors: A Meta-Analysis

INTRODUCTION: The purpose of this meta-analysis was to examine the efficacy of exercise to reduce depressive symptoms among cancer survivors. In addition, we examined the extent to which exercise dose and clinical characteristics of cancer survivors influence the relationship between exercise and reductions in depressive symptoms. METHODS: We conducted a systematic search identifying randomized controlled trials of exercise interventions among adult cancer survivors, examining depressive symptoms as an outcome. We calculated effect sizes for each study and performed weighted multiple regression moderator analysis. RESULTS: We identified 40 exercise interventions including 2,929 cancer survivors. Diverse groups of cancer survivors were examined in seven exercise interventions; breast cancer survivors were examined in 26; prostate cancer, leukemia, and lymphoma were examined in two; and colorectal cancer in one. Cancer survivors who completed an exercise intervention reduced depression more than controls, d(+) = -0.13 (95% CI: -0.26, -0.01). Increases in weekly volume of aerobic exercise reduced depressive symptoms in dose-response fashion (β = -0.24, p = 0.03), a pattern evident only in higher quality trials. Exercise reduced depressive symptoms most when exercise sessions were supervised (β = -0.26, p = 0.01) and when cancer survivors were between 47-62 yr (β = 0.27, p = 0.01). CONCLUSION: Exercise training provides a small overall reduction in depressive symptoms among cancer survivors but one that increased in dose-response fashion with weekly volume of aerobic exercise in high quality trials. Depressive symptoms were reduced to the greatest degree among breast cancer survivors, among cancer survivors aged between 47-62 yr, or when exercise sessions were supervised

Mitochondrial physiology

As the knowledge base and importance of mitochondrial physiology to evolution, health and disease expands, the necessity for harmonizing the terminology concerning mitochondrial respiratory states and rates has become increasingly apparent. The chemiosmotic theory establishes the mechanism of energy transformation and coupling in oxidative phosphorylation. The unifying concept of the protonmotive force provides the framework for developing a consistent theoretical foundation of mitochondrial physiology and bioenergetics. We follow the latest SI guidelines and those of the International Union of Pure and Applied Chemistry (IUPAC) on terminology in physical chemistry, extended by considerations of open systems and thermodynamics of irreversible processes. The concept-driven constructive terminology incorporates the meaning of each quantity and aligns concepts and symbols with the nomenclature of classical bioenergetics. We endeavour to provide a balanced view of mitochondrial respiratory control and a critical discussion on reporting data of mitochondrial respiration in terms of metabolic flows and fluxes. Uniform standards for evaluation of respiratory states and rates will ultimately contribute to reproducibility between laboratories and thus support the development of data repositories of mitochondrial respiratory function in species, tissues, and cells. Clarity of concept and consistency of nomenclature facilitate effective transdisciplinary communication, education, and ultimately further discovery