810 research outputs found
Do Concreto para o Abstrato pelo Uso dos Sentidos e de Sensores: Um Estudo de Caso sobre o Ecossistema Poças de Maré
Este artigo apresenta um estudo de caso exploratório, desenvolvido no contexto
do Projeto Sondar e Sentir o Ambiente para Desenvolver o Pensamento Abstrato (SOS Abstrato), que visa estudar as potencialidades da utilização conjunta
e sinérgica dos sentidos humanos e de sensores eletrónicos para desenvolver
o pensamento abstrato nas crianças. O estudo de caso foi desenvolvido com uma turma do 4.º ano de escolaridade e centrado no ecossistema Poças de
Maré de uma praia no Norte de Portugal. A utilização dos sentidos e sensores em
atividades experimentais produziu evidências de desenvolvimento da abstração
no estudo da biodiversidade e da temperatura.This paper presents an exploratory case study, developed in the context of
the Using Sensors and Sensing in the Environment to Develop Abstract Thinking
Project (SOS Abstract), which goal is to study the potential of the joint and
synergic use of electronic sensors and human senses to develop children’s
abstract thinking. The case study was developed with a 4th year class and is
centred on the Tide Pools of a beach in the North of Portugal. The use of senses and sensors in experimental activities produced evidences of the development of
abstract thinking, while studying biodiversity and temperature
An Adversarial Robustness Benchmark for Enterprise Network Intrusion Detection
As cyber-attacks become more sophisticated, improving the robustness of
Machine Learning (ML) models must be a priority for enterprises of all sizes.
To reliably compare the robustness of different ML models for cyber-attack
detection in enterprise computer networks, they must be evaluated in
standardized conditions. This work presents a methodical adversarial robustness
benchmark of multiple decision tree ensembles with constrained adversarial
examples generated from standard datasets. The robustness of regularly and
adversarially trained RF, XGB, LGBM, and EBM models was evaluated on the
original CICIDS2017 dataset, a corrected version of it designated as NewCICIDS,
and the HIKARI dataset, which contains more recent network traffic. NewCICIDS
led to models with a better performance, especially XGB and EBM, but RF and
LGBM were less robust against the more recent cyber-attacks of HIKARI. Overall,
the robustness of the models to adversarial cyber-attack examples was improved
without their generalization to regular traffic being affected, enabling a
reliable detection of suspicious activity without costly increases of false
alarms.Comment: 15 pages, 8 tables, 2 figures, FPS 2023 conferenc
The help relationship in clinical nursing education
The clinical nursing education involves considerable effort from students. They established interpersonal
relationships and they are active participants in this process. What is the perception of nursing students and the
parents of the children in the help relationship (HR) developed during the clinical training were some of our
research questions. We aimed to identify factors that influence interpersonal relations between nursing students
and the mothers of hospitalized children; analyze the relationship between the perspective of students and the
parents of the children on the HR developed during the clinical training; identify feelings experienced by students and parents in the relational process of care taking. As methods quantitative, descriptive and correlational study, conducted in a sample of 139 nursing students and 73 mothers of hospitalized children. It was used a questionnaire, which includes socio-demographic, training and clinical characterization and the BarrettLennard Relationship Inventory (BLRI), which evaluates the help relationship in four dimensions have been used. The dimensions of help relationship - Level of Regard, Empathic Understanding and Unconditionally Respect - are scored positively by students and mothers. The Congruence of performance is evaluated negatively by mothers while students are evaluated positively. Prevailing negative feelings referenced by students and the positive feelings by mothers. The perception of help relationship is influenced by some socio-demographic variables of students and mothers. All dimensions establish a dependent relationship with the group of students and mothers. The perception of students on the HR is positive, the perception of mothers regarding student performance is also positive, except in Congruence.info:eu-repo/semantics/publishedVersio
Eco-efficiency in Portuguese companies of marble sector
The activities developed within an eco-efficiency project in mineral industries located in the largest area for marble extraction in Portugal, in Alentejo region, in the Estremoz – Borba and Vila Viçosa anticline are presented in this paper. The project was designed to apply the sustainability concept in seven companies of marble extraction and transformation. The adopted strategy used new cleaner production models together with sustainable value (SV) improvement, leading to the rationalization of the industrial process, the involvement of economic agents and the orientation of the management of production processes towards eco-efficiency. The challenge was to have the mineral industry managing efficiently the resources on which the business depends, according to sustainability principles. Different opportunities for improvement, related to the minimization of materials, water and energy use, were identified in the companies. Some proposals mainly related to social improvement and small and medium-sized enterprise competitiveness benefits
were also selected and discussed. This approach allows the integration of sustainability at company's and region's levels by combining in the entrepreneurial activity the creation of wealth together with the environment protection and the achieving of social benefits. Highlights: The involvement of different stakeholders in the project (Eco-efficiency in Portuguese companies of marble sector) was positive in the discussion and search of solutions for companies. It is possible to involve marble extraction and processing companies in eco-efficiency improvement towards sustainability. Companies from the marble sector improved environmental and social performance and reduced the costs of their production processes by applying SV methodology
Topografia do ruÃdo: o som como catalisador de projecto: transformação da não-porosidade fÃsica do Campo da Feira de Vila Verde em porosidade espácio-temporal
Dissertação de mestrado integrado em ArquitecturaPartindo dum objecto de estudo concreto - o Campo da Feira de Vila Verde -
e das inquietações suscitadas por este, o presente trabalho é uma investigação
sobre uma prática de interpretar, representar e intervir no espaço criada a partir
da sua dimensão sonora, indo para além dum ‘olhar’ puramente visual.
As caracterÃsticas geomorfológicas e o respectivo processo de transformação
através do processo de urbanização de Vila Verde, em meados dos anos 90,
no qual o Campo da Feira se integra, fazem deste uma amostra significativa
das problemáticas que o território contemporâneo coloca, nomeadamente
no potencial do espaço público para estabelecer relações entre as escalas de
proximidade e territorial. O confronto destas inquietações com uma experiência
do lugar in situ, que remonta até ao perÃodo anterior à construção da amostra,
permitiu-nos construir um olhar especÃfico sobre ela, olhar este que estruturou
uma interpretação activa e propositiva, culminando na construção duma
metodologia especÃfica, Ã qual demos o nome de topografia do ruÃdo. Nesta
metodologia interpretámos e sintetizámos a paisagem em estudo a partir da sua
dimensão sonora, construindo simultaneamente um sistema de representação
que traduz este olhar e que veio a tornar-se operativo para o passo seguinte – a
proposta de intervenção.
A topografia do ruÃdo é um projecto de investigação que atravessa a
interpretação - intervenção, materializando uma metodologia de projectar
enquanto investigação, na qual projectar não é apenas ‘construir’, mas antes
gerar conhecimento. A proposta assentou no potencial de transformação do
espaço da amostra a partir da reorganização da paisagem sonora que a ‘habita’,
em continuidade com o olhar especÃfico construÃdo. Em suma, este trabalho
contribui com uma metodologia de projecto alternativa que leva em conta
a dimensão sonora do espaço e da paisagem, sendo passÃvel de ser aplicada
noutros contextos e lugares.Starting from a concrete case study - the Fair Camp of Vila Verde - and from the
questions raised by it, the present work is an investigation about interpreting,
representing and intervine in space, created from it’s acustic dimension, going
further than one ‘way of looking’ that is purely visual.
The geomorphological characteristics and it’s process of transformation
through the urbanizing process of Vila Verde, in mid 90’s, in which the Fair Camp
integrates, make this sample a significative one about the problematics that
contemporary territory raises, namely about the potential of public space to
establish relations between proximate and territorial scales. The confrontation
of these questions with an in situ experience of the place, that goes back to
the period prior to the construction of the sample, allowed us to construct a
specific ‘way of looking’ about it, which structured an active and propositional
interpretation, culminating in the construction of a specific methodology,
named topography of noise. In this methodology we interpreted and
synthesized the case study landscape starting from it’s acoustic dimension,
simultanously constructing a system of representation that translates this
‘way of looking’ and that became operative for the next step - the intervention
proposal.
The topography of noise is an investigation project that crosses the
interpreting-intervining, materializing a methodology of project as
investigation, in which projecting isn’t only about ‘constructing’, but also about
generating knowledge. The proposal relied on the potential of transformation
of the sample’s space starting from the reorganization of the acoustic landscape
that inhabits it, in continuity with the specific ‘way of looking’. In short, this work
contributes with an alternative methodology of project that takes in account
the acoustic dimension of space, being possible to be applied in other contexts
and places
Casais SÃsifo : um estudo qualitativo sobre pais com crianças com deficiência mental
O nascimento dum filho com deficiência é um evento familiar sobre a qual a visão dominante foi durante muito tempo a de uma catástrofe, da qual o casal poderia nunca mais vir a recuperar. Apesar do choque, surpresa, reestruturações familiares e das dificuldades que normalmente acompanham o nascimento dum filho com deficiência mental, as famÃlias podem sair mais reforçadas e enriquecidas nas suas relações.
Entrevistamos seis casais com um filho com deficiência mental, tendo analisado posteriormente o seu conteúdo e concluÃmos tal como as perspetivas mais salutogénicas que o nascimento do filho com deficiência mental pode trazer incrementos positivos à vida marital, sendo os pais capazes de usufruir significativamente da relação com o filho, apesar de estes ganhos também irem de mãos dadas com algumas perdas. Concluimos também que cada um dos membros do casal traz os seus recursos próprios para dentro da relação conjugal que podem facilitar ou dificultar a aceitação da deficiência mental do filho.The birth of a child with mental disabilities is a family event that suffered from dominant catastrophic look for a long time, from which the couple might never come to recover again. Despite the schock, surprise, family restructuring and difficulties that usually accompanies the birth of a child with mental disabilities, families may emerge strenghtened and enriched in their relationships.
We interviewed six couples with a mentally disabled child, then analised their contents, and concluded that like the more salutogenic perspectives, the birth of a child with mental disabilities can bring positive gains to the marital relationship, being parents able to significatively enjoy from the relationship with their child, although these gains go hand in hand with some losses. We concluded as well that each couple member brings their own resources to the conjugal relationship, which can facilitate or impede the mental disability acceptance of their child
Anestesia em Endodontia
Projeto de Pós-Graduação/Dissertação apresentado à Universidade Fernando Pessoa como parte dos requisitos para obtenção do grau de Mestre em Medicina DentáriaEndodontia é a especialidade da medicina dentária responsável pelo estudo e tratamento da câmara pulpar, de todo o sistema de canais radiculares e dos tecidos periapicais, bem como das doenças que os afetam.
A aplicação de soluções anestésicas torna-se essencial em endodontia e faz parte do dia a dia do médico dentista sendo por isso necessário um amplo conhecimento sobre o assunto. No presente trabalho pretende-se, através de uma revisão bibliográfica, aprofundar o conhecimento sobre as diferentes patologias do ramo da endodontia, assim como das diversas técnicas anestésicas utilizadas, tipos de anestesia, uso de vasoconstritores e da dosagem das mesmas. Pretende-se também relacionar o tratamento endodôntico e a utilização dos anestésicos locais. Não é demais sublinhar que o tratamento em endodontia é realizado diretamente em superfÃcies nervosas e altamente sensÃveis. Nesse sentido e na justa medida em que pacientes nervosos e ansiosos não são de todo colaborantes e o seu stress pode levar a alterações fisiológicas, é necessário um domÃnio da técnica de anestesia para garantir uma maior eficácia no tratamento e também uma maior taxa de sucesso. Propõe-se por isso com este trabalho fazer uma pequena abordagem à s condições sistémicas de cada paciente para assim poder avaliar qual o anestésico local a utilizar assim como o uso de vasoconstritores. Para tal, importa compreender as vantagens e desvantagens das diferentes técnicas anestésicas para definir qual a opção mais eficaz em cada caso concreto. Pretende-se com este trabalho sistematizar as técnicas disponÃveis mais relevantes e elencar as diversas situações em que se apresentam mais adequadas, em função do diagnóstico realizado. Será também desenvolvida uma breve abordagem a pacientes de risco, sendo salientadas as gravidas, onde será relatado qual o tipo ideal de anestésico local a administrar, assim como contra indicações, e trimeste ideal para o tratamento dentário. Endodontics is the specialty of dentistry responsible for the study and treatment of the pulp chamber, of the entire root canal system and the periapical tissues, as well as the diseases that affect them. The application of anesthetic solutions becomes essential in endodontics and is part of everyday life of the dentist and therefore requires an extensive knowledge about the subject. In the present work it is intended, through a literature review, deepen the knowledge about the different pathologies of the branch of endodontics, as well as of various anesthetic techniques used, types of anesthesia, use of vasoconstrictors and dosage of the same. It is also intended to relate the endodontic treatment and the use of local anesthetics. It is never too much to emphasize that the treatment in endodontics is performed directly on nervous surfaces and highly sensitive ones. In this sense, and in the right measure in which nervous and anxious patients are not at all cooperating and their stress can lead to physiological changes, it is necessary a mastery of the technique of anesthesia to ensure greater effectiveness in treatment and also a higher rate of success. It is therefore proposed that a small approach to the systemic conditions of each patient be done, so as to be able to assess what local anesthetic should be used, as well as the use of vasoconstrictors. For this, it is important to understand the advantages and disadvantages of different anesthetic techniques to determine the most effective option in each case. This study aims to systematize the available techniques most relevant and enumerate the various situations in which they are most appropriate, depending on the diagnosis. It will be also developed a brief approach to risk patients, being highlighted the pregnant, where the ideal type of local anesthetic to administer will be reported, as well as contraindications, and the ideal quarter for dental treatment
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