3,222 research outputs found
Air pollution in the Aveiro region, Portugal: A citizens' engagement approach
© 2018 WIT Press. Air pollution has become a growing concern in the past few years, with an increasing number of acute air pollution episodes in many cities worldwide. In Portugal, especially in the region of Aveiro, high concentrations of particulate matter are frequently recorded, being one of the most critical air pollutants. Health impacts related with citizens' exposure to particulate matter has been threatening human health, increasing mortality and morbidity and contributing to a broad range of negative health outcomes. Different causes are attributed to air pollution over Portugal: agricultural, forest fires and dust emissions from Sahara Desert, amongst the natural emission sources, and road-traffic, residential combustion and industrial emissions, amongst the anthropogenic emission sources. Citizens' behaviour has a main role on air quality management. Each day individual choices, such as transportation or residential heating, have direct impact on air pollutant emissions. Therefore, citizens' play an important role to mitigate air pollution problems in their cities. However, the first step is to increase citizens' receptiveness about their contribution to the problem and, at the same time, to engage and empower them to contribute to the solutions. Aveiro Region is one of the case studies of ClairCity (Citizen-led air pollution reduction in cities) project. The project developed several activities to engage citizens on air pollution and carbon emissions issues. This work focus on the Delphi-like approach that includes surveys and workshops, to find out about people's lives in Aveiro Region and their vision for a low carbon, clean air and healthy future region. This paper presents an overview about air pollution in Aveiro region as well as the activities of the Delphi survey to see how citizens perceive this problem and their role on future air quality management
Joining sustainable design and internet of things technologies on campus : the IPVC smartbottle practical case
Higher education institutions (HEIs) are favored environments for the implementation of technological solutions that accelerate the generation of smart campi, given the dynamic ecosystem they create based on the involvement of inspired and motivated human resources (students, professors, and researchers), moving around in an atmosphere of advanced digital infrastructures and services. Moreover, HEIs have, in their mission, not only the creation of integrated knowledge through Research and Development (R&D) activities but also solving societal problems that address the academic community expectations concerning environmental issues, contributing, therefore, towards a greener society embodied within the United Nations (UN) Sustainable Development Goals (SDGs). This article addresses the design and implementation of a Smartbottle Ecosystem in which an interactive and reusable water bottle communicates with an intelligent water refill station, both integrated by the Internet of Things (IoT) and Information and Communications Technologies (ICT), to eliminate the use of single-use plastic water bottles in the premises of the Polytechnical Institute of Viana do Castelo (IPVC), an HEI with nearly 6000 students. Three main contributions were identified in this research: (i) the proposal of a novel methodology based on the association of Design Thinking and Participatory Design as the basis for Sustainable Design; (ii) the design and development of an IoT-enabled smartbottle prototype; and (iii) the usability evaluation of the proposed prototype. The adopted methodology is rooted in Design Thinking and mixes it with a Participatory Design approach, including the end-user opinion throughout the Smartbottle Ecosystem design process, not only for the product design requirements but also for its specification. By promoting a participatory solution tailored to the IPVC academic community, recycled plastic has been identified as the preferential material and a marine mammal was selected for the smartbottle shape, in the process of developing a solution to replace the single-use plastic bottles.7519-C505-DF9E | Ant?nio Jos? Candeias CuradoN/
Adult nutrient intakes from current dietary surveys of European populations
The World Health Organisation (WHO) encourages countries to undertake national dietary survey (NDS), but implementation and reporting is inconsistent. This paper provides an up-to-date review of adult macro and micronutrient intakes in European populations as reported by national diet surveys (NDS). It uses WHO Recommended Nutrient Intakes (RNIs) to assess intake adequacy and highlight areas of concern. NDS information was gathered primarily by internet searches and contacting survey authors and nutrition experts. Survey characteristics and adult intakes by gender/age group were extracted for selected nutrients and weighted means calculated by region. Of the 53 WHO Europe countries, over a third (n=19), mainly Central & Eastern European countries (CEEC), had no identifiable NDS. Energy and nutrient intakes were extracted for 21 (40%) countries, but differences in age group, methodology, under-reporting and nutrient composition databases hindered inter-country comparisons. No country met more than 39% WHO RNIs in all age/gender groups; macronutrient RNI achievement was poorer than micronutrient. Overall RNI attainment was slightly worse in CEEC, and lower in women and female elderly. Only 40% countries provided adult energy and nutrient intakes. The main gaps lie in CEEC, where unknown nutrient deficiencies may occur. WHO RNI attainment was universally poor for macronutrients, especially for women, the female elderly and CEEC. All countries could be encouraged to report a uniform nutrient set and sub-analyses of nationally representative nutrient intakes
Direct comparison of distinct naive pluripotent states in human embryonic stem cells
Until recently, human embryonic stem cells (hESCs) were shown to exist in a state of primed pluripotency, while mouse embryonic stem cells (mESCs) display a naive or primed pluripotent state. Here we show the rapid conversion of in-house-derived primed hESCs on mouse embryonic feeder layer (MEF) to a naive state within 5-6 days in naive conversion media (NCM-MEF), 6-10 days in naive human stem cell media (NHSM-MEF) and 14-20 days using the reverse-toggle protocol (RT-MEF). We further observe enhanced unbiased lineage-specific differentiation potential of naive hESCs converted in NCM-MEF, however, all naive hESCs fail to differentiate towards functional cell types. RNA-seq analysis reveals a divergent role of PI3K/AKT/mTORC signalling, specifically of the mTORC2 subunit, in the different naive hESCs. Overall, we demonstrate a direct evaluation of several naive culture conditions performed in the same laboratory, thereby contributing to an unbiased, more in-depth understanding of different naive hESCs
Updatism, and broad present : a brief analysis of contemporary temporalities.
Discutimos sintomatolog?as relacionadas con una ruptura entre el tiempo
historicista-moderno, por lo general encontrado en el siglo xix, y un ?cronotopo?
o ?r?gimen de historicidad? emergente, sustancialmente distinto.
Despu?s de leer ?Temporalidad y cotidianidad?, de Ser y tiempo, de Heidegger,
argumentamos que ciertos aspectos de este tiempo pueden derivarse
de las descripciones de la temporalidad del ?estado de apertura?. Por lo que
para Heidegger estas formas de experiencia son ontol?gicas, tendr?amos
que pensar en el significado de su ?p?rdida de relevancia? en las descripciones
de la ??poca moderna? y su hipertrofia en las descripciones de la
novedad de nuestro actual cronotopo. Utilizamos la palabra ?actualismo?
para pensar en una forma de presente que pone el ?nfasis en las temporalizaciones
no aut?nticas.We discuss some symptomatologies of our present time that claim substantial
differences between the historicist-modern time, usually located in
the 19th century, and an emergent ?chronotope? or ?regime of historicity?.
From the chapter ?Temporality and everydayness?, of Being and Time, we
argue that certain aspects of this new ?chronotope? can be derived from Heidegger?s
description of the temporality of ?openness?, particularly of what
he calls the inauthentic temporalizing. Since for Heidegger these forms of
experience are ontological, we have to consider the meaning of their irrelevance
in the descriptions of the ?modern time? and its hypertrophy in the
descriptions of the so-called novelty of our ?chronotope?. We use the word
?updatism? as an alternative to understanding our historical time
Lethal concentration (LC50) (120h) of neutral household detergent Limpol in guppy Poecilia reticulata.
Aquatic environments have been destroyed because of increase of pollutants dumped
into waters. In some poor countries or in developing ones, like Brazil, detergents are
one of the main responsible to impact these environments. Guppy (Poecilia reticulata)
is a common fish in Central and South America, being very used in vitro experiments,
since it is an easy specimen to keep in laboratories. This work aimed to determine the
LC50 (120h) of neutral household detergent for guppy. We tested seven different
concentrations (0, 10, 20, 30, 40, 70 and 100 mg/L), and Probit analysis showed that
approximately 33.4 mg/L was the lethal dose that killed 50% of guppies in 120h, with
doses below 30 mg/L did not killing any fish, while doses above 30 mg/L killed all
individuals in few hours. We concluded that even small doses of detergent can be lethal
to aquatic organisms, especially if the exposition time is prolonged
Wearables and Internet of Things (IoT) Technologies for Fitness Assessment: A Systematic Review
Wearable and Internet of Things (IoT) technologies in sports open a new era in athlete?s training, not only for performance monitoring and evaluation but also for fitness assessment. These technologies rely on sensor systems that collect, process and transmit relevant data, such as biomark ers and/or other performance indicators that are crucial to evaluate the evolution of the athlete?s condition, and therefore potentiate their performance. This work aims to identify and summarize recent studies that have used wearables and IoT technologies and discuss its applicability for fitness assessment. A systematic review of electronic databases (WOS, CCC, DIIDW, KJD, MEDLINE, RSCI, SCIELO, IEEEXplore, PubMed, SPORTDiscus, Cochrane and Web of Science) was undertaken according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. From the 280 studies initially identified, 20 were fully examined in terms of hardware and software and their applicability for fitness assessment. Results have shown that wearable and
IoT technologies have been used in sports not only for fitness assessment but also for monitoring the athlete?s internal and external workloads, employing physiological status monitoring and activity recognition and tracking techniques. However, the maturity level of such technologies is still low, particularly with the need for the acquisition of more?and more effective?biomarkers regarding the athlete?s internal workload, which limits its wider adoption by the sports community.4811-99FE-2ECD | Luis Paulo RodriguesN/
Cell walls of the dimorphic fungal pathogens Sporothrix schenckii and Sporothrix brasiliensis exhibit bilaminate structures and sloughing of extensive and intact layers
This work was supported by the Fundação Carlos Chagas de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ), grants E-26/202.974/2015 and Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), grants 229755/2013-5, Brazil. LMLB is a senior research fellow of CNPq and Faperj. NG acknowledged support from the Wellcome Trust (Trust (097377, 101873, 200208) and MRC Centre for Medical Mycology (MR/N006364/1). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.Peer reviewedPublisher PD
Stages of change and factors associated with misperceived eating behavior in obese individuals
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