1,136 research outputs found
Efectos de la compresión manual abdómino-torácica sobre la presión intracraneal en pacientes críticos en ventilación mecánica invasiva y con lesión cerebral aguda
[Resumen] Los pacientes con lesión cerebral aguda a menudo necesitan de conexión a ventilación mecánica invasiva, aumentando el riesgo de desarrollar complicaciones respiratorias como la retención de secreciones. Las compresiones manuales abdómino-torácicas son una técnica de fisioterapia respiratoria que puede mejorar el aclaramiento de secreciones en estos pacientes. Aunque hoy en día la evidencia científica es contradictoria, las compresiones manuales abdómino-torácicas podrían estar asociadas a un aumento de la presión intracraneal en pacientes con lesión cerebral aguda.
Objetivos: Se pretende con este trabajo estudiar los efectos de la técnica de compresión manual abdómino-torácica en la presión intracraneal en pacientes ventilados mecánicamente. Además, se estudiarán los efectos de la técnica en los diferentes volúmenes y flujos registrados por el respirador y se estudiará también la relación entre la presión aplicada en la técnica en estudio y las distintas variables.
Metodología: Será un ensayo clínico aleatorizado, con ciego simple en la aplicación de las técnicas. Se incluirán pacientes con lesión cerebral aguda en ventilación mecánica invasiva, distribuidos de forma aleatoria en dos grupos. En el grupo control se aplicará una técnica de movilización pasiva de tobillo y en el grupo de intervención se aplicará la técnica de compresión manual abdómino-torácica. Los datos de la variable principal, la presión intracraneal, se recogerán con un sistema de monitorización y grabación continua (Integra Camino).[Abstract] Patients with acute brain injury often require invasive mechanical ventilation connection, increasing the risk of developing complications such as respiratory secretions retention. The abdomino-thoracic compression is a manual chest physiotherapy technique that can improve clearance of secretions in these patients. Although today the scientific evidence is contradictory, the manual abdomino-thoracic compression may be associated with increased intracranial pressure in patients with acute brain injury.
Objectives: The aim of this work to study the effects of manual abdomino-thoracic compression technique in intracranial pressure in mechanically ventilated patients. Furthermore, the effects of the technique in different volumes and flows recorded by the ventilator and the relationship between the pressure applied in the intervention group and the different variables will also be studied.
Methodology: It will be a randomized clinical trial, single-blind in the application of the techniques. Patients with acute brain injury in invasive mechanical ventilation will be included, randomized into two groups. In the control group, a technique of passive ankle mobilization will be applied and in the intervention group it will be performed the manual abdomino-thoracic compression technique. The data of the primary variable, intracranial pressure will be collected with a monitoring system and continuous recording (Integra Camino).[Resumo] Os pacientes con lesión cerebral aguda moitas veces esixen conexión a ventilación mecánica invasiva, aumentando o risco de desenvolvemento de complicacións, como a retención de secrecións respiratorias. A técnica de compresión abdómino-torácica é unha técnica de fisioterapia respiratoria manual que pode mellorar a eliminación de secrecións neses pacientes. Aínda hoxe a evidencia científica é contraditoria, a técnica de compresión abdómino-torácica pode estar asociada co aumento da presión intracraniana en pacientes con lesión cerebral aguda.
Obxectivos: O obxectivo deste traballo é estudar os efectos da técnica de compresión abdómino-torácica na presión intracraniana en pacientes mecánicamente ventilados. Ademais, estudiaránse os efectos da técnica en diferentes volumes e fluxos rexistrados polo ventilador e a relación entre a presión aplicada na realización da técnica en estudo e as diferentes variables.
Metodoloxía: Será un ensaio clínico randomizado con cego simple na aplicación das técnicas. Inclúense pacientes con lesión cerebral aguda en ventilación mecánica invasiva, randomizados en dous grupos. No grupo control, será aplicada unha técnica de mobilización pasiva do nocello e no grupo de intervención aplicaráse a técnica de compresión abdómino-torácica. Os datos da variable principal, a presión intracraniana, serán recollidos cun sistema de seguimento e gravación continua (Integra Camino).Traballo fin de mestrado (UDC.FCS). Asistencia e investigación sanitaria. Especialidade en investigación clínica. Curso 2015/2016
Tarefas em geometria: da sala de aula para a formação de professores, descrição de um projeto
Neste poster, apresentamos um projeto que pretende abordar de forma conglomerada conhecimentos, raciocínios, argumentação e representações de alunos e professores dos primeiros anos. Perspetiva-se como uma das formas de contribuir para uma melhoria dos conhecimentos geométricos de alunos e professores bem como para uma possível mudança de foco na prática e na formação geométrica de professores
A ciência-cidadã ao serviço da mudança: o exemplo do projeto A Minha Praia
Vencedor da 1ª edição do Orçamento Participativo Portugal (2017), A Minha Praia é um projeto de
monitorização ambiental que pretende sensibilizar para a conservação do meio marinho e estimular hábitos de
consumo responsáveis, através de ações de ciência cidadã e civismo ambiental.SFRH/BGCT/135195/2017info:eu-repo/semantics/publishedVersio
Arbustus unedo essence: morphological and genetic characterization of the strawberry tree of Castelo de Paiva
O medronheiro é um arbusto da região mediterrânica que pode ser encontrada por todo
o país. Ao contrário do que verifica na região sul do país, no concelho de Castelo de Paiva
é atribuída uma reduzida importância económica a esta espécie. Com o intuito de
preservar e potenciar a produção desta espécie e contribuir para a dinamização da
economia do concelho, procedeu-se à caracterização morfológica e genética de uma
amostra da população de medronheiros de Castelo de Paiva. A caracterização
morfológica e genética foi realizada para um total de 10 genótipos. Para tal recolheram-se
70 folhas aleatoriamente em cada árvore. Em 40 folhas mediu-se o comprimento, largura,
comprimento do pedúnculo, peso fresco, peso seco e determinou-se a área foliar. Dos
caracteres morfológicos analisados, aqueles que se revelaram mais úteis na distinção dos
vários genótipos foram: comprimento do pedúnculo, peso fresco e peso seco. As
restantes 30 folhas foram utilizadas para a caracterização genética. Esta caracterização foi
realizada recorrendo a um marcador de DNA, ISSR. Os 5 primeiros exemplaresutilizados
na técnica de ISSR demonstraram-se polimórficos. Os resultados da caracterização
genética sugerem que a variabilidade genética na população é média a alta.The strawberry tree is a shrub native in the Mediterranean region and it can be found
throughout Portugal. Unlike the case in the southern region of the country, in Castelo de
Paiva a minor economic importance is given to this species. In order to preserve, to
enhance the production of this species and to contribute to the boosting of the economy
of the region, we proceeded to the characterization of a small sample population of this
fruit tree of Castelo de Paiva in what concerns to its morphology and genetics. The
morphological and genetic characterization was performed for a total of 10 genotypes.
For this, 70 leaves were randomly collected from each tree. For 40 leaves, it was
measured the length, the width, the peduncle length, the wet weight, the dry weight and
determined the leaf area. Of the morphological characteristics analyzed, the ones that proved most useful in distinguishing the various genotypes were: the length peduncle, the
wet weight and the dry weight. The remaining 30 leaves were used in the genetic
characterization. This characterization was performed using a DNA marker, the ISSR.
The 5 primers used in the ISSR technique proved to be polymorphic. The results from
the genetic characterization suggest that variability in population genetics is medium to
high
Results from the portuguese register
Objective Our aims were to evaluate the correlation between Juvenile Arthritis Disease Activity Score 27-joint reduced count (JADAS27) with erythrocyte sedimentation rate (ESR) and JADAS27 with C-reactive protein (CRP) scores and to test the agreement of both scores on classifying each disease activity state. We also aimed at verifying the correlation of the 2 scores across juvenile idiopathic arthritis (JIA) categories and to check the correlation between JADAS27-ESR and clinical JADAS27 (JADAS27 without ESR). Methods A nationwide cohort of patients with JIA registered in the Portuguese Register, Reuma.pt, was studied. JADAS27-CRP was adapted by replacing ESR with CRP level as the inflammatory marker. JADAS27-CRP was calculated similarly to JADAS27-ESR as the simple linear sum of its 4 components. Pearson's correlations and K statistics were used in the analyses. Results A total of 358 children had full data to calculate JADAS27; 65.4% were female and the mean ± SD disease duration was 11.8 ± 9.1 years. The correlation coefficient between JADAS27-ESR and JADAS27-CRP was 0.967 (P < 0.0001), although the correlation coefficient between ESR and CRP level was 0.335 (P < 0.0001). The strong correlation between JADAS27-ESR and JADAS27-CRP was maintained when compared within each JIA category. The agreement between JADAS27-ESR and JADAS27-CRP across the 4 activity states was very good, showing 91.1% of the observations in agreement; K = 0.867 (95% confidence interval 0.824-0.91). The correlation between JADAS27 with ESR and JADAS27 without ESR was high (r = 0.97, P < 0.0001). Conclusion JADAS27 based on CRP level correlated closely with JADAS27-ESR across all disease activity states and JIA categories, indicating that both measures can be used in clinical practice. Moreover, the correlation of JADAS27 with and without ESR was also high, suggesting that this tool might be useful even in the absence of laboratorial measures.publishersversionpublishe
Um ano de escola n'A Minha Praia – sensibilização para a problemática do lixo marinho utilizando a ciência-cidadã como ferramenta
Um ano de escola n’A Minha Praia – sensibilização para a problemática do lixo marinho utilizando a ciência-cidadã como ferramenta
O Algarve reúne um conjunto de características que o tornam particularmente vulnerável à presença de lixo marinho e aos seus efeitos nefastos: uma orla costeira longa (aprox. 200km), um destino turístico muito popular, uma população residente concentrada no litoral e uma fração significativa da sociedade cuja subsistência depende de atividades económicas ligadas ao mar (pesca, marisqueio, extração de sal, passeios turísticos, etc.). Foi tendo em conta a magnitude e as consequências da propagação do lixo marinho na região que o Centro Ciência Viva de Tavira coordenou o projeto A Minha Praia, um dos vencedores da primeira edição do Orçamento Participativo Portugal (OPP) em 2017, e cuja execução foi garantida pela colaboração entre os três Centros Ciência Viva (CCVs) no Algarve, com o envolvimento de várias entidades regionais e nacionais. Este projeto permitiu que cerca de 933 alunos provenientes de 17 escolas fossem sensibilizados para a conservação do meio marinho, para hábitos de consumo sustentáveis e para o civismo ambiental, em simultâneo com ações de ciência-cidadã, nas quais periodicamente monitorizavam a presença de lixo marinho em seis praias da costa sul do Algarve. Ainda dentro da função didática do projeto, demonstramos a valorização do plástico (que é o maior componente do lixo marinho), aproveitando-o, reciclando-o e transformando-o em novos objetos que prolongam a sua utilidade.Esta apresentação foi dinamizada no âmbito do projecto OPP-A Minha (OPP220/437), financiado pela Ciência Viva - Agência Nacional para a Cultura Científica e Tecnológica e pela FCT - Fundação para a Ciência e Tecnologia.info:eu-repo/semantics/publishedVersio
Observation of Higgs boson production in association with a top quark pair at the LHC with the ATLAS detector
The observation of Higgs boson production in association with a top quark pair ( tt¯H ), based on the analysis of proton–proton collision data at a centre-of-mass energy of 13 TeV recorded with the ATLAS detector at the Large Hadron Collider, is presented. Using data corresponding to integrated luminosities of up to 79.8 fb −1 , and considering Higgs boson decays into bb¯ , WW⁎ , τ+τ− , γγ , and ZZ⁎ , the observed significance is 5.8 standard deviations, compared to an expectation of 4.9 standard deviations. Combined with the tt¯H searches using a dataset corresponding to integrated luminosities of 4.5 fb −1 at 7 TeV and 20.3 fb −1 at 8 TeV, the observed (expected) significance is 6.3 (5.1) standard deviations. Assuming Standard Model branching fractions, the total tt¯H production cross section at 13 TeV is measured to be 670 ± 90 (stat.) −100+110 (syst.) fb, in agreement with the Standard Model prediction.Peer Reviewe
Measurement of photon–jet transverse momentum correlations in 5.02 TeV Pb + Pb and collisions with ATLAS
Jets created in association with a photon can be used as a calibrated probe to study energy loss in the medium created in nuclear collisions. Measurements of the transverse momentum balance between isolated photons and inclusive jets are presented using integrated luminosities of 0.49 nb of Pb+Pb collision data at TeV and 25 pb of collision data at TeV recorded with the ATLAS detector at the LHC. Photons with transverse momentum GeV and pseudorapidity . Distributions of the per-photon jet yield as a function of , , are corrected for detector effects via a two-dimensional unfolding procedure and reported at the particle level. In collisions, the distributions are well described by Monte Carlo event generators. In Pb+Pb collisions, the distribution is modified from that observed in collisions with increasing centrality, consistent with the picture of parton energy loss in the hot nuclear medium. The data are compared with a suite of energy-loss models and calculations.Peer Reviewe
SARS-CoV-2 introductions and early dynamics of the epidemic in Portugal
Genomic surveillance of SARS-CoV-2 in Portugal was rapidly implemented by
the National Institute of Health in the early stages of the COVID-19 epidemic, in collaboration
with more than 50 laboratories distributed nationwide.
Methods By applying recent phylodynamic models that allow integration of individual-based
travel history, we reconstructed and characterized the spatio-temporal dynamics of SARSCoV-2 introductions and early dissemination in Portugal.
Results We detected at least 277 independent SARS-CoV-2 introductions, mostly from
European countries (namely the United Kingdom, Spain, France, Italy, and Switzerland),
which were consistent with the countries with the highest connectivity with Portugal.
Although most introductions were estimated to have occurred during early March 2020, it is
likely that SARS-CoV-2 was silently circulating in Portugal throughout February, before the
first cases were confirmed.
Conclusions Here we conclude that the earlier implementation of measures could have
minimized the number of introductions and subsequent virus expansion in Portugal. This
study lays the foundation for genomic epidemiology of SARS-CoV-2 in Portugal, and highlights the need for systematic and geographically-representative genomic surveillance.We gratefully acknowledge to Sara Hill and Nuno Faria (University of Oxford) and
Joshua Quick and Nick Loman (University of Birmingham) for kindly providing us with
the initial sets of Artic Network primers for NGS; Rafael Mamede (MRamirez team,
IMM, Lisbon) for developing and sharing a bioinformatics script for sequence curation
(https://github.com/rfm-targa/BioinfUtils); Philippe Lemey (KU Leuven) for providing
guidance on the implementation of the phylodynamic models; Joshua L. Cherry
(National Center for Biotechnology Information, National Library of Medicine, National
Institutes of Health) for providing guidance with the subsampling strategies; and all
authors, originating and submitting laboratories who have contributed genome data on
GISAID (https://www.gisaid.org/) on which part of this research is based. The opinions
expressed in this article are those of the authors and do not reflect the view of the
National Institutes of Health, the Department of Health and Human Services, or the
United States government. This study is co-funded by Fundação para a Ciência e Tecnologia
and Agência de Investigação Clínica e Inovação Biomédica (234_596874175) on
behalf of the Research 4 COVID-19 call. Some infrastructural resources used in this study
come from the GenomePT project (POCI-01-0145-FEDER-022184), supported by
COMPETE 2020 - Operational Programme for Competitiveness and Internationalisation
(POCI), Lisboa Portugal Regional Operational Programme (Lisboa2020), Algarve Portugal
Regional Operational Programme (CRESC Algarve2020), under the PORTUGAL
2020 Partnership Agreement, through the European Regional Development Fund
(ERDF), and by Fundação para a Ciência e a Tecnologia (FCT).info:eu-repo/semantics/publishedVersio
MAMMALS IN PORTUGAL : A data set of terrestrial, volant, and marine mammal occurrences in P ortugal
Mammals are threatened worldwide, with 26% of all species being includedin the IUCN threatened categories. This overall pattern is primarily associatedwith habitat loss or degradation, and human persecution for terrestrial mam-mals, and pollution, open net fishing, climate change, and prey depletion formarine mammals. Mammals play a key role in maintaining ecosystems func-tionality and resilience, and therefore information on their distribution is cru-cial to delineate and support conservation actions. MAMMALS INPORTUGAL is a publicly available data set compiling unpublishedgeoreferenced occurrence records of 92 terrestrial, volant, and marine mam-mals in mainland Portugal and archipelagos of the Azores and Madeira thatincludes 105,026 data entries between 1873 and 2021 (72% of the data occur-ring in 2000 and 2021). The methods used to collect the data were: live obser-vations/captures (43%), sign surveys (35%), camera trapping (16%),bioacoustics surveys (4%) and radiotracking, and inquiries that represent lessthan 1% of the records. The data set includes 13 types of records: (1) burrowsjsoil moundsjtunnel, (2) capture, (3) colony, (4) dead animaljhairjskullsjjaws, (5) genetic confirmation, (6) inquiries, (7) observation of live animal (8),observation in shelters, (9) photo trappingjvideo, (10) predators dietjpelletsjpine cones/nuts, (11) scatjtrackjditch, (12) telemetry and (13) vocalizationjecholocation. The spatial uncertainty of most records ranges between 0 and100 m (76%). Rodentia (n=31,573) has the highest number of records followedby Chiroptera (n=18,857), Carnivora (n=18,594), Lagomorpha (n=17,496),Cetartiodactyla (n=11,568) and Eulipotyphla (n=7008). The data setincludes records of species classified by the IUCN as threatened(e.g.,Oryctolagus cuniculus[n=12,159],Monachus monachus[n=1,512],andLynx pardinus[n=197]). We believe that this data set may stimulate thepublication of other European countries data sets that would certainly contrib-ute to ecology and conservation-related research, and therefore assisting onthe development of more accurate and tailored conservation managementstrategies for each species. There are no copyright restrictions; please cite thisdata paper when the data are used in publications.info:eu-repo/semantics/publishedVersio
- …