403 research outputs found
Sistemas interativos tangíveis e processos de mediação tecnológica: hipóteses sobre agência, significação e cognição a partir da investigação do MIT Tangible Media Group
A presente dissertação toma a investigação em sistemas de interação tangível do
MIT Tangible Media Group como objeto, a pretexto da sua inclusão na edição de 2016
do Festival Ars Electronica, sob o tema Radical Atoms: The Alchemists of Our Time.
Pretende-se compreender quais os pontos de contato da investigação do grupo com os
estudos dos media, de forma a localizar a sua relevância para a programação do festival.
O enquadramento nos estudos dos media é feito pela localização de um conjunto de
termos-chave no trabalho do grupo, os quais evocam questões afetas à fenomenologia,
filosofia da tecnologia e mediação tecnológica. Conclui-se que estes sistemas de
interação tangível ativam processos particulares de constituição de agência, significação
e cognição. Na ausência de outros materiais que explorem estas relações no contexto do
festival, a dissertação apresenta-se assim como complemento à leitura do tema Radical
Atoms: The Alchemists of Our Time.This dissertation thesis takes the research of the MIT Tangible Media Group as its
object, by occasion of its inclusion in the 2016 edition of Ars Electronica Festival under
the theme Radical Atoms: The Alchemists of Our Time. The aim is to understand what
are the common points between the group's research and media studies, in order to
locate this object's relevance to the festival programming scope. The framing within
media studies is done by surveying a set of keywords from the group's research, which
evoke topics from phenomenology, philosophy of technology and technological
mediation. It's concluded that these tangible interactive systems activate specific
processes of agency, signification, and cognition. Given the lack of materials which
explore these relationships within the context of the festival, the dissertation presents
itself as a supplement to the reading of the Radical Atoms: The Alchemists of Our
Time theme
Anorexia nervosa and purgative-type bulimia nervosa: a fundamental role of the dental surgeon in diagnosis and treatment
Introduction: In a world where appearance is considered above all by most people. It is in this unbridled search that some people end up acquiring eating disorders. Anorexia nervosa and purgative-type bulimia nervosa are diseases that are rarely taken into account in the first clinical assessment of the patient. Bulimia nervosa and Anorexia nervosa are eating disorder that causes serious physiological problems in the oral cavity, due to saliva calcification caused by frequent vomiting. Objective: it was to bring into discussion, through a literature review, the meticulous look that the dental surgeon must-have when performing the clinical examination and that he can be the first source in detecting signs of eating disorders and their clinical manifestations in the patient and so can forwards it to a multidisciplinary team for better diagnosis and treatment. Methods: This study followed an integrated literature review model and articles dating from 2001 to 2021 in English and Portuguese were selected. In virtual databases such as Scielo and PubMed. Results and Conclusion: The dental surgeon plays an important role in the team, controlling the development and progression of oral manifestations. Pass the oral hygiene guidelines, apply substances that can control the acids that are present in oral fluids; use salivary substitutes that can help reduce erosive wear. And always encourage this patient to come back for treatment. In extreme cases of damage to the dental structure, functional and anatomical, restorative or rehabilitative treatment is chosen. Recover form, function, esthetics and eliminate hypersensitivity and facilitate cleaning. The dental surgeon must be able to assess and diagnose the manifestations arising from eating disorders. Because it is the first professional to be able to detect and thus refer to a team of multi-professionals such as a psychologist, nutritionist, doctor and manage to perform the best possible treatment simultaneously and, through preventive and rehabilitative procedures, be able to return a better quality of life to the patient
The literacy in the perspective of national learning plans in Brazil and Portugal
ISSN: 2525-9571A leitura é essencial para se alcançar as competências mínimas para atender as demandas do mundo atual. Assim a leitura tornou-se preocupação para os países se desenvolverem economicamente, e dessa forma, passa a fazer parte de políticas públicas, sejam no bojo da educação formal através de sistemas educativos, sendo avaliados, por instrumentos nacionais e internacionais, bem como na educação não formal por meio de ações voltadas para estimular a leitura em leitores potenciais. Este estudo teve como objetivo identificar as semelhanças e diferenças entre os planos nacionais de leitura do Brasil e de Portugal, ao nível da formulação política, governação e implementação. Para atender aos objetivos da investigação, foi desenvolvido um estudo de casos múltiplos cujo levantamento dos dados se deu através de pesquisa documental e de entrevistas semiestruturadas, realizadas a coordenadores dos Planos, bibliotecários municipais e professores responsáveis por bibliotecas escolares dos dois países. De acordo com os dados recolhidos é possível afirmar que existe a influência de organismos internacionais para o desenvolvimento de políticas públicas de leitura nos dois países. No Brasil, destaca-se a influência do Centro Regional para el Fomento del Libro en América Latina, e em Portugal, a Organização para a Cooperação e Desenvolvimento Económico, através do Programa Internacional de Avaliação de Alunos. O estudo concluiu que os Planos apresentam algumas semelhanças na sua formulação política e na governação e dessemelhanças aos níveis dos destinatários, das práticas implementadas e influência dos interesses do mercado livreiro.info:eu-repo/semantics/publishedVersio
Bioethanol production for clinical purposes: fermentation of cardoon
Os biocombustíveis são todos aqueles em que a
produção parte de matéria-prima e, portanto, de
fontes renováveis, tais como compostos vegetais
e/ou de origem animal. A primeira etapa do
processamento da matéria-prima lenhocelulósica
deve ser o pré-tratamento, que permite solubilizar
açúcares da hemicelulose aumentando a
acessibilidade à celulose por parte das enzimas
hidrolíticas. O pré-tratamento catalisado por ácidos
consiste em quebrar as macromoléculas presentes
na celulose e/ou hemicelulose, por adição de um
ácido à biomassa; ou enzimas no caso da hidrólise
enzimática; já naqueles em que são utilizadas bases,
uma parte da lenhina é removida e a hemicelulose
tem de ser depois hidrolisada pelo uso de enzimas
—hemicelulases. Numa fase final deve ser realizada
uma fermentação do hidrolisado obtido após prétratamento utilizando para o efeito microrganismos
geneticamente selecionados com as melhores
características que proporcionem a bioconversão da
matéria-lenhocelulósica em bioetanol.
Neste trabalho pretendeu-se avaliar a utilização da
espécie Cynara cardunculus (planta do cardo) como
fonte de biomassa lenhocelulósica e como potencial
matéria-prima para a produção de bioetanol por
intervenção microbiana no processo fermentativo
da matéria-prima.
Vários investigadores tentaram proceder a
esta bioconversão realizando, em primeiro
lugar, um pré-tratamento à biomassa obtendo
rendimentos de xilose e/ou glicose entre os 64 e
os 90%. Posteriormente, aquando da realização da
sacarificação enzimática, podendo esta ser realizada
simultaneamente à fermentação, foram reportados
rendimentos entre os 60 e os 70%. Concluíram uma
maior eficácia com rendimentos de etanol superiores
aquando da realização da sacarificação enzimática
simultaneamente com a fermentação. A partir da
obtenção de bioetanol, este pode ser aplicado em
diversas áreas com diferentes finalidades.
Um dos principais entraves para a globalização
e expansão destes processos de bioconversão
de material lenhocelulósico por fermentação a
bioprodutos é o custo que os processos envolvidos
apresentam. No entanto, é de ressalvar que esta
situação é verificada apenas em situações que se
pretende uma bioconversão de biomassa rica em
amido, dado que, necessita de uma conversão a
açúcares passíveis de fermentação; o que evidencia
a vantagem clara na utilização de biomassa que
apresente na sua constituição a glicose no seu estado
nato e que possa ser diretamente fermentada a
etanol.ABSTRACT: Biofuels are all those in which the production starts
from raw material and therefore from renewable
sources such as plant or animal compounds. The
first step in the processing of lignocellulosic raw
material should be pretreatment, which allows
solubilizing sugars from hemicellulose, increasing
the accessibility of hydrolytic enzymes to cellulose.
The acid catalyzed pretreatment consists of breaking
down the macromolecules present in cellulose or
hemicellulose, by adding an acid to the biomass or
enzymes in the case of enzymatic hydrolysis. In those
where bases are used, part of the lignin is removed,
and hemicellulose must then be hydrolyzed by
the use of enzymes — hemicellulases. In the final
phase, a fermentation of the hydrolysate obtained
after pretreatment should be carried out using
genetically selected microorganisms with the best
characteristics that provide the bioconversion of
lignocellulosic matter in bioethanol.
This work aimed to evaluate the use of the species
Cynara cardunculus as a source of lignocellulosic
biomass and as a potential raw material for
bioethanol production by microbial intervention in
the fermentation process of the raw material.
Several researchers have attempted to perform
this bioconversion by first performing a biomass
pretreatment yield xylose and/or glucose yields
between 64 and 90%. Subsequently, at the time
of enzymatic sacrifice, which can be performed
simultaneously with fermentation, yields between
60 and 70% were reported. They concluded to be
more effective with higher ethanol yields when
enzymatic sacrifice was performed simultaneously
with fermentation. By obtaining bioethanol, it can
be applied in several areas with different purposes. One of the main challenges for the globalization
and expansion of these processes of bioconversion
of lignocellulosic material by fermentation to
bioproducts, is the cost that the involved processes
present. However, it should be noted that this
situation is verified only in situations that are
intended for a bioconversion of starch-rich biomass,
as it requires conversion to fermentable sugars; this
shows, on the other hand, the clear advantage in the
use of biomass that presents glucose in its natural
state and that can be directly fermented to ethanol.info:eu-repo/semantics/publishedVersio
Future without delirium: not quite there yet but we can start by prescribing touch
© The Author(s) 2022. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.The recently published article by Kotfs et al. “The future of intensive care: delirium should no longer be an issue”, brought us great interest and although we agree with the authors’ perspective this is still far from being reality. Despite delirium increase report as an adverse event, it is often faced on daily practice as a patient’s “weakness” or an inevitability due to acute illness that we fail to avoid. Tis perspective precludes multidisciplinary team effort from targeting the modifiable components of delirium mentioned in the paper.info:eu-repo/semantics/publishedVersio
O pai e o bebé prematuro
Dissertação de Mestrado apresentada ao ISPA - Instituto UniversitárioA adaptação à paternidade é um processo complexo que implica um conjunto de
transformações no sujeito, principalmente quando se fala do nascimento de um bebé
prematuro. Por parecer que o pai é muitas vezes esquecido, este estudo tem como
objectivo compreender os sentimentos, as vivências, os pensamentos deste em relação
ao seu bebé nascido precocemente. No total foram abordados 32 recém-pais (uma vez
que o nascimento do seu filho não podia ter ocorrido há mais de dois meses), de género
masculino e primíparos. Tratando-se de um estudo exploratório, descritivo, transversal
foi usado um questionário, criado para este mesmo trabalho, com o intuito de recolher
uma vasta quantidade de informações sobre este tema até então relativamente pouco
abordado. Maioritariamente os dados foram recolhidos no Hospital de Santarém, sendo
que alguns pais foram contactados directamente no seu domicílio. Foi possível
compreender que os sentimentos face ao nascimento do bebé prematuro para a maioria
destes pais, foi bastante alegre e positivo, não desencadeando sentimentos de desilusão
ou tristeza.ABSTRACT: The adjustment to parenthood is a complex process involving a series of changes in the
subject, especially when discussing the birth of a premature baby.
It appears that the father is often forgotten, this study is to understand the feelings,
experiences, the thoughts of this in relation to your baby born prematurely. Altogether
32 were newly covered parents (since the birth of his son couldn´t have occurred more
than two months), from male gender and first child.
As this is an exploratory study, descriptive, cross a questionnaire was used, created for
the same work in order to collect a vast amount of information on this subject until then
relatively little discussed. Mostly the data were collected in the Hospital of Santarém,
where some parents were contacted directly in their homes.
It was possible to understand that the feelings against the premature birth of the baby for
most of these parents, was very cheerful and positive, not triggering feelings of
disappointment or sadness
Chitosan-cellulose particles as delivery vehicles for limonene fragrance
This study proposes the use of chitosan-cellulose particles to encapsulate limonene, a fragrant component widely
used in the flavor and fragrance industries. As cellulose possesses a stiff molecular structure due to the threedimensional
arrangement of hydrogen bonded hydroxyls, its dissolution is difficult to achieve. To surpass this
constraint, and solubilize cellulose, LiOH/urea/water systems were tested using different freezing temperatures
and number of freezing/thawing/stirring cycles. Then, chitosan-cellulose composite particles were produced and
characterized by Scanning Electron Microscopy (SEM) to assess morphology and size, and by Fourier Transform
Infrared Spectroscopy (FTIR) and Thermogravimetric Analysis (TGA) to access chitosan-cellulose molecular
interactions. The release behaviour of limonene from the chitosan-cellulose particles was studied by gas chromatography
(GC). The obtained particles presented an average diameter ranging from 1 to 2mm and spherical
shape, characteristics very similar to the corresponding empty cellulose-chitosan composite particles. A good
affinity was found between the two biopolymers, cellulose and chitosan. The achieved encapsulation efficiency
of limonene was 51.29%, and the produced particles demonstrated a burst release of limonene in the first 24 h,
followed by a decrease over 162 h. Based on the achieved results this system seems favourable for applications
requiring preservation of sensory qualities and prolonged release of fragrances.This work was financially supported by: Associate Laboratory LSRELCM
- UID/EQU/50020/2019 - funded by national funds through FCT/
MCTES (PIDDAC). This work is a result of: Project "AIProcMat@N2020
- Advanced Industrial Processes and Materials for a Sustainable
Northern Region of Portugal 2020", with the reference NORTE-01-
0145-FEDER-000006, supported by Norte Portugal Regional
Operational Programme (NORTE 2020), under the Portugal 2020
Partnership Agreement, through the European Regional Development
Fund (ERDF); Associate Laboratory LSRE-LCM - UID/EQU/50020/2019
- funded by national funds through FCT/MCTES (PIDDAC). CIMO (UID/
AGR/00690/2019) through FEDER under Program PT2020. P. Costa
acknowledges her postdoctoral grant from FCT (SFRH/BPD/93108/
2013). To the national funding by FCT, P.I., through the institutional
scientific employment program-contract for I.P. Fernandes contract.info:eu-repo/semantics/publishedVersio
Does Locomotive Syndrome, Associated with Sarcopenia or otherwise, Influence Quality of Life in Individuals Aged over 80 years? Third Wave of the LOCOMOV Project
Introduction: Locomotion is a determinant of intrinsic capacity ofolder people and can be limited by dysfunction in locomotory organs,characterizing Locomotive Syndrome (LoS). Knowledge on locomotiveproblems and sarcopenia, and their interface with quality of life, in theoldest old in the literature is scarce.Objective: To evaluate the correlation between LoS and sarcopenia andtheir influence on quality of life in oldest old.Methods: A cross-sectional study of an observational, descriptive andanalytical epidemiological survey in independent older adults aged 80and over from São Paulo, Brazil and who participated in the third waveof the LOCOMOV Project, was carried out. Sociodemographic data,comorbidities, functioning in activities of daily living, physical functioning,quality of life, and presence of sarcopenia and LoS were assessed. Thestatistical analyses included the Test-for-Comparing-Two-Proportions,Pearson's Correlation Coefficient, the chi-Square test and Student´s t-test.Results: Thirty oldest old with a mean age of 89.1 years were evaluated.The prevalence of LoS was high (53.3%) and correlated significantly withchronic pain (p-value 0.024), worse performance on the SPPB and Gaitspeed (p-value <0.001). Sarcopenia was not correlated with LoS, but worsequality of life on the physical domain was significantly associated with LoS(p-value <0.001) regardless of the presence of sarcopenia.Conclusions: LoS was highly prevalent among the oldest old studied andnegatively impacted their quality of life, regardless of the presence ofsarcopenia.
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