cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Porous polyurethane foam for use as a particle collection substrate in a nanoparticle respiratory deposition sampler
Creators: name: Mines, Levi W. D.
name: Park, Jae Hong
name: Imali A. Mudunkotuwa
name: T. Renée Anthony
name: Grassian, Vicki H.
name: Peters, Thomas M.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 20199 Astronomical and Space Sciences not elsewhere classified
subject: FOS: Physical sciences

description: Porous polyurethane foam was evaluated to replace the eight nylon meshes used as a substrate to collect nanoparticles in the Nanoparticle Respiratory Deposition (NRD) sampler. Cylindrical (25 mm diameter by 40 mm deep) foam with 100 pores per inch was housed in a 25-mm-diameter conductive polypropylene cassette cowl compatible with the NRD sampler. Pristine foam and nylon meshes were evaluated for metals content via elemental analysis. The size-selective collection efficiency of the foam was evaluated using salt (NaCl) and metal fume aerosols in independent tests. Collection efficiencies were compared to the nanoparticulate matter (NPM) criterion and a semi-empirical model for foam. Changes in collection efficiency and pressure drop of the foam and nylon meshes were measured after loading with metal fume particles as measures of substrate performance. Substantially less titanium was found in the foam (0.173 µg sampler−1) compared to the nylon mesh (125 µg sampler−1), improving the detection capabilities of the NRD sampler for titanium dioxide particles. The foam collection efficiency was similar to that of the nylon meshes and the NPM criterion (R2 = 0.98, for NaCl), although the semi-empirical model underestimated the experimental efficiency (R2 = 0.38). The pressure drop across the foam was 8% that of the nylon meshes when pristine and changed minimally with metal fume loading (∼19 mg). In contrast, the pores of the nylon meshes clogged after loading with ∼1 mg metal fume. These results indicate that foam is a suitable substrate to collect metal (except for cadmium) nanoparticles in the NRD sampler. Copyright © 2016 American Association for Aerosol Research
An Intumescent-Like Flame Retardant Effect of Hollow Carbon Precursor on Acrylonitrile-Butadiene-styrene/Oligomeric Aryl Phosphate/Novolac Epoxy Composites
Creators: name: Zibin Guo
name: Chengle Wang
name: Li, Juan
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Physiology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: An intumescent-like char layer was formed by introducing hollow phenolic microspheres (HPMs) into acrylonitrile-butadiene-styrene (ABS)/oligomeric aryl phosphate (OAP)/novolac epoxy resin (NE). ABS-grafted maleic anhydride (MAH-g-ABS) was used to improve their compatibility. Combustion and thermal degradation behaviors were studied. The results showed that the ABS composites containing 25 wt% OAP/NE (3/2) obtains a LOI as high as 50, however it cannot be classified in the UL-94 test. Combination of OAP/NE, MAH-g-ABS and HPMs (23/10/2) improves the UL-94 grade of ABS composites to V-1. A continuous and compact porous intumescent-like char layer is generated during combustion, thus better flame retardancy is obtained.
Modelling the abundance and spatial distribution of mountain gorilla forage species in the Virunga massif
Creators: name: Providence Akayezu
Publisher: name: figshare
Year: 2016
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Environmental Science

description: The mountain gorilla population has increased in since 1981 due to increased protection of their habitat. Moreover climate change was predicted to affect African mountains including the gorilla habitat. It is therefore very crucial to continuously monitor the availability of plant species consumed by gorillas. More specifically, their spatial distribution using GIS and Remote Sensing techniques has not been done so far. This study used a Boosted Regression Tree Model to map the five mostly preferred gorilla forage species in the Virunga massif; a protected area shared between Rwanda, Uganda and Democratic Republic of Congo. The model inputs included presence-absence data as well as biophysical parameters. The model output showed the probability of occurrence of each species consumed by mountain gorillas. These results are useful for park managers to understand the movement of gorillas as they concentrate where the food is abundant.
title: 01_0346
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
STUDIO CLINICO_ TMS OBESITA' 482.2021
Creators: name: MultiMedica Data Management
Publisher: name: Zenodo
Year: 2024

description: STUDIO CLINICO_ TMS OBESITA’ 482.2021

TITOLO : TMS OBESITA’ - Effetti della Stimolazione Magnetica Transcranica (TMS) profonda su: peso corporeo e parametri cardio-metabolici, in pazienti affetti da obesità,  con e senza diabete di tipo 2

Promotore: MultiMedica

Studio di intervento randomizzato monocentrico

Sinossi Versione 1.0 del 14.3.2021 - Verbale CE 82.2021
Pensamento Algébrico e Diagramático: Uma experiência de ensino com alunos do 10.º ano
Creators: name: Vaz, Sara
name: Suharman, Lúcia
name: Neto, Teresa
Publisher: name: Indagatio Didactica
Year: 2019

description: Neste artigo, apresentamos uma análise de resoluções de alunos do 10.º ano de escolaridade do Ensino Secundário em Portugal, tendo como foco os objetos e processos usados na resolução de tarefas, envolvendo o pensamento algébrico (PA) e diagramático. O estudo adotou uma metodologia qualitativa de natureza exploratória-descritiva. A análise referida teve lugar num estudo realizado na Universidade de Aveiro, no âmbito da Prática de Ensino Supervisionada do Mestrado em Ensino de Matemática no 3.º Ciclo do Ensino Básico e no Secundário. Os resultados mostram que os níveis de PA mais trabalhados são o 1 e o 2 e que não é usual os alunos recorrerem ao pensamento diagramático (PD) para responderem às tarefas pedidas.
description: Indagatio Didactica, vol. 8 n.º 5 (2016)
Introduction to Architectural Coatings and Review of Sustainability Trends
Creators: name: Kocabiyik, Ilker
Publisher: name: Zenodo
Year: 2024
Subjects: BioBased
Paint
Coatings
BioEconomy
BioTechnology
WaterBourn
Binders
Pigments
Fillers

description: Presentation on paint and coating fundamentals held on 4 March 2024 in the first PERFECOAT webinar episode for yound researchers in the field of surface engineering.
СОЛИҚ КОДЕКСИГА ЎЗГАРТИРИШ ВА КИРИТИЛГАН ҚЎШИМЧАЛАР
Creators: name: Джумамуратов, Руслан
Publisher: name: Zenodo
Year: 2024

description: Мазкур мақолада иқтисодиётимизга инвестиция ресурларини фаол жалб қилишда солиқ қонунчилигининг ўзгарувчанлиги, шунингдек инвестицияларни ҳимоя қилишнинг қўшимча кафолатлари ва чоралари баён этилган.
Arndt Brendecke, Susanne Reichlin (Hg.), Zeiten der Wachsamkeit, Berlin, Boston (De Gruyter Oldenbourg) 2022
Creators: name: Winnerling, Tobias
Publisher: name: Francia-Recensio
Year: 2024

description: Arndt Brendecke, Susanne Reichlin (Hg.), Zeiten der Wachsamkeit, Berlin, Boston (De Gruyter Oldenbourg) 2022, 232 S., 26 Abb. (Vigilanzkulturen/Cultures of Vigilance, 1), ISBN 978-3-11-076513-7, EUR 39,95.
description: Francia-Recensio, 2024/1
Bio-remediation of Pb and Cd polluted soils by switchgrass: A case study in India
Creators: name: Arora, Kalpana
name: Satyawati Sharma
name: Monti, Andrea
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Space Science
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: Introduction: In the present study bioremediation potential of a high biomass yielding grass, Panicum virgatum (switchgrass), along with plant associated microbes (AM fungi and Azospirillum), was tested against lead and cadmium in pot trials. Methods: A pot trial was set up in order to evaluate bioremediation efficiency of P. virgatum in association with PAMs (Plant Associated Microbes). Growth parameters and bioremediation potential of endomycorrhizal fungi (AMF) and Azospirillum against different concentrations of Pb and Cd were compared. Results: AM fungi and Azospirillum increased the root length, branches, surface area, and root and shoot biomass. The soil pH was found towards neutral with AMF and Azospirillum inoculations. The bioconcentration factor (BCF) for Pb (12 mg kg−1) and Cd (10 mg kg−1) were found to be 0.25 and 0.23 respectively and translocation index (Ti) was 17.8 and 16.7 respectively (approx 45% higher than control). Conclusions: The lower values of BCF and Ti, even at highest concentration of Pb and Cd, revealed the capability of switchgrass of accumulating high concentration of Pb and Cd in the roots, while preventing the translocation of Pb and Cd to aerial biomass.
Transpiration and metabolisation of TCE by willow plants – a pot experiment
Creators: name: Schöftner, Philipp
name: Watzinger, Andrea
name: Holzknecht, Philipp
name: Wimmer, Bernhard
name: Reichenauer, Thomas G.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: Willows were grown in glass cylinders filled with compost above water-saturated quartz sand, to trace the fate of TCE in water and plant biomass. The experiment was repeated once with the same plants in two consecutive years. TCE was added in nominal concentrations of 0, 144, 288, and 721 mg l−1. Unplanted cylinders were set-up and spiked with nominal concentrations of 721 mg l−1 TCE in the second year. Additionally, 13C-enriched TCE solution (δ13C = 110.3 ‰) was used. Periodically, TCE content and metabolites were analyzed in water and plant biomass. The presence of TCE-degrading microorganisms was monitored via the measurement of the isotopic ratio of carbon (13C/12C) in TCE, and the abundance of 13C-labeled microbial PLFAs (phospholipid fatty acids). More than 98% of TCE was lost via evapotranspiration from the planted pots within one month after adding TCE. Transpiration accounted to 94 to 78% of the total evapotranspiration loss. Almost 1% of TCE was metabolized in the shoots, whereby trichloroacetic acid (TCAA) and dichloroacetic acid (DCAA) were dominant metabolites; less trichloroethanol (TCOH) and TCE accumulated in plant tissues. Microbial degradation was ruled out by δ13C measurements of water and PLFAs. TCE had no detected influence on plant stress status as determined by chlorophyll-fluorescence and gas exchange.
Aprender a Cooperar na Aprendizagem das Ciências: Um estudo de caso em Estudo do Meio do 2.º ano do 1.º Ciclo do Ensino Básico
Creators: name: Fernandes, Tânia
name: Silva, José Luís Coelho Da
Publisher: name: Indagatio Didactica
Year: 2019

description: A aprendizagem cooperativa é perspetivada como uma finalidade e uma estratégia educativa em virtude de poder contribuir para o desenvolvimento de competências de cooperação e, simultaneamente, se constituir como uma via propiciadora da aprendizagem. É neste quadro teórico que se idealizou, concebeu, implementou e avaliou uma intervenção pedagógica, caracterizada, sumariamente, pela operacionalização das atividades de aprendizagem cooperativa - Jigsaw1 e TGT2 – e pelo envolvimento de 27 alunos de Estudo do Meio do 2.º ano de escolaridade. A metodologia de investigação adotada consistiu na operacionalização articulada de procedimentos qualitativos e quantitativos, a partir de dados recolhidos através de tarefas de aprendizagem e da aplicação aos alunos de um questionário de avaliação final global. Os resultados obtidos apontam o contributo das atividades de aprendizagem cooperativa no desenvolvimento significativo de competências de cooperação. O tipo de temática científica e a dinâmica de cooperação são os fatores mobilizados pelos alunos para a atribuição de maior ou menor valor educativo às atividades de aprendizagem cooperativa. A dificuldade na realização da tarefa de pesquisa de informação, característica da atividade Jigsaw, é assinalada pelos alunos como a razão que justifica terem sentido mais dificuldades na atividade de aprendizagem cooperativa Jigsaw do que na TGT. Os resultados obtidos afirmam a possibilidade da operacionalização no 1.º Ciclo do Ensino Básico de abordagens pedagógicas focalizadas na aprendizagem cooperativa, mas indicam, também, a importância do envolvimento dos alunos em tarefas de reflexão sobre os processos pedagógicos de modo a incrementar o impacto educativo destas abordagens.
description: Indagatio Didactica, vol. 8 n.º 5 (2016)
Mixed planting with a leguminous plant outperforms bacteria in promoting growth of a metal remediating plant through histidine synthesis
Creators: name: Gbotemi A. Adediran
name: Bryne T. Ngwenya
name: J. Frederick W. Mosselmans
name: Heal, Kate V.
name: Harvie, Barbra A.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology

description: The effectiveness of plant growth promoting bacteria (PGPB) in improving metal phytoremediation is still limited by stunted plant growth under high soil metal concentrations. Meanwhile, mixed planting with leguminous plants is known to improve yield in nutrient deficient soils but the use of a metal tolerant legume to enhance metal tolerance of a phytoremediator has not been explored. We compared the use of Pseudomonas brassicacearum, Rhizobium leguminosarum, and the metal tolerant leguminous plant Vicia sativa to promote the growth of Brassica juncea in soil contaminated with 400 mg Zn kg–1, and used synchrotron based microfocus X-ray absorption spectroscopy to probe Zn speciation in plant roots. B. juncea grew better when planted with V. sativa than when inoculated with PGPB. By combining PGPB with mixed planting, B. juncea recovered full growth while also achieving soil remediation efficiency of >75%, the maximum ever demonstrated for B. juncea. μXANES analysis of V. sativa suggested possible root exudation of the Zn chelates histidine and cysteine were responsible for reducing Zn toxicity. We propose the exploration of a legume-assisted-phytoremediation system as a more effective alternative to PGPB for Zn bioremediation.
Dynamic control of Purcell enhanced emission of Er ions in nanocrystals
Creators: name: Casabone, B.
name: C. Deshmukh
name: S. Liu
name: D. Serrano
name: A. Ferrier
name: T. Hummer
name: P. Goldner
name: D. Hunger
name: H. De Riedmatten
Publisher: name: Zenodo
Year: 2019
Subjects: rare earth
quantum technologies
square

description: Single atoms or solid-state emitters are very promising candidates for building quantum network nodes as they provide for a spin-photon interface that also has quantum information processing capabilities. Among solid-state materials, rare earth ion-doped crystals constitute a promising platform for quantum information processing and networking. They feature exceptional spin coherence time to store information, narrow optical transitions to act as an interface to optical photons (including at telecom wavelength for erbium ions), and possibilities to realize quantum gates between single ion qubits. Coupling quantum emitters to optical cavities enables channelling the emission from the emitters into the cavity mode while decreasing their emission lifetime. This allows the realization of an efficient and high-rate spin-photon interface, while also increasing the indistinguishability of the emitted photons in the presence of dephasing. However, a reduction in the excited state lifetime also reduces the time available to realize quantum gates that rely on a dipole-blockade mechanism achieved by driving the emitter to the excited state. Dynamic control of the Purcell factor would hence enable decoupling the emitter from the cavity when performing gates, and coupling it back at a desired time to emit a single-photon with a tunable waveshape. In this work [1], by utilizing erbium-doped nanoparticles coupled to a fully tunable high-finesse fiber-based optical cryogenic microcavity, we demonstrate a Purcell factor of 31 that can be controlled on a timescale of 100 microseconds, which is more than 100 times faster than the spontaneous emission lifetime of the erbium ions. This is achieved by tuning the length of the cavity, and hence its resonance frequency, via a piezoelectric device with sub-nanometre precision. Additionally, we demonstrate that this technique can be operated with a bandwidth high enough to shape deterministically the spontaneous emission of the erbium ions. With some improvements, this technique has the potential to reach switching times of a few microseconds. Combined with single-ion addressing, this ability will enable the generation of fully tunable narrowband single photons at telecom wavelengths, and quantum processing using single rare-earth-ions. Our approach therefore opens the door to a solid-state quantum node with the potential of exhibiting quantum computing and communication capabilities all in a single device. [1] Bernardo Casabone, Chetan Deshmukh, Shuping Liu, Diana Serrano, Alban Ferrier, Thomas Hümmer, Philippe Goldner, David Hunger, and Hugues de Riedmatten, “Dynamic control of Purcell enhanced emission of erbium ions in nanoparticles”, arXiv:2001.08532 (2020)
Brechas de equidad en la evaluación censal de estudiantes 2007-2014: tres aproximaciones a su medición
Creators: name: Repositorio Academico UPC
name: Guadalupe, César
name: Burga, Andrés
name: Miranda, Liliana
name: Castillo, Luis Eduardo
Publisher: name: figshare
Year: 2016
Subjects: subject: 130199 Education systems not elsewhere classified
subject: FOS: Educational sciences

description: Este artículo discute la evidencia generada mediante la evaluación censal de estudiantes del Perú (aplicada en el segundo grado de educación primaria para medir desempeños en comprensión lectora y matemática) entre 2007 y 2014, con relación a brechas de equidad vinculadas al sexo de los estudiantes, la gestión de la escuela (estatal/no estatal); el área geográfica (urbana/rural); y su característica (escuelas completas/multigrados).
Educação para o Desenvolvimento Sustentável: atividades com orientação CTS/ PC no 1.º CEB
Creators: name: Silva, Marisa
name: Tenreiro-Vieira, Celina
Publisher: name: Indagatio Didactica
Year: 2019

description: Face à importância crescente de promover uma educação em ciências, desde os primeiros anos de escolaridade, potenciadora de sinergias entre diferentes perspetivas, realizou-se um estudo com a finalidade de desenvolver (conceber, produzir, implementar e avaliar) atividades de ciências, num quadro de Educação para o Desenvolvimento Sustentável (EDS), com orientação CiênciaTecnologia-Sociedade (CTS) e promotoras do Pensamento Crítico (PC). Procurou-se averiguar qual o contributo das atividades desenvolvidas, tendo por base as orientações mencionadas, para promover aprendizagens de alunos do 1.º Ciclo do Ensino Básico (CEB) no que reporta à construção de conhecimentos científicos e ao desenvolvimento de capacidades de PC. Adotando uma metodologia orientada para a prática, assente num plano de investigação-ação, o estudo foi concretizado com uma turma do 1.º ano do Ensino Básico (EB), sendo que, ao longo de quinze sessões, os alunos realizaram as atividades produzidas com orientação CTS/PC, num quadro EDS. Foram recolhidos dados através de vários instrumentos construídos para o efeito, no âmbito de diferentes técnicas de recolha de dados, incluindo a elaboração de entrevistas semiestruturadas e o desenvolvimento de um instrumento de análise das produções dos alunos. Na análise de dados, a técnica privilegiada foi a análise de conteúdo. Os resultados obtidos a partir da análise dos dados recolhidos permitem concluir que as atividades de ciências desenvolvidas no âmbito do estudo contribuíram para promover aprendizagens no que reporta à mobilização/construção de conhecimentos científicos e à mobilização/desenvolvimento de capacidades de PC dos alunos do 1.º CEB.
description: Indagatio Didactica, vol. 7 n.º 1 (2015)
Competências do professor para o ensino online: análise de um curso de capacitação de docentes em EaD
Creators: name: Rosário, Lina Sara Chovano Do
name: Moreira, António
Publisher: name: Indagatio Didactica
Year: 2019

description: A introdução do Ensino a Distância nas instituições de ensino presencial traz desafios aos professores pelo facto desta modalidade de ensino exigir novos conhecimentos e competências que, segundo Berge (1995), Palloff & Pratt (2000), e Lynch (2002), são necessários para a interação com estudantes e utilização das tecnologias. Este artigo apresenta diferentes competências do professor para o EaD no Ensino Superior, resultado duma investigação realizada em dois programas de capacitação de docência em EaD, na Universidade Eduardo Mondlane, Moçambique. Participaram 16 professores. Trata-se duma investigação qualitativa. Na recolha de dados utilizaram-se questionários, entrevistas individuais/grupo, registos das interações assíncronas (fórum, e-mail interno/externo à plataforma) e síncronas (chat), e o diário. As perceções dos professores relativamente às competências de EaD variaram em função de experiências prévias. Professores que já haviam experimentado o EaD apresentaram competências tendo em conta experiências vividas na lecionação e formação; os que não tinham experiência de EaD identificaram-nas a partir das interações online nas ações de formação. O estudo identificou 18 competências-base para atuar em EaD, aqui agrupadas em 5: científicas; pedagógicas; tecnológicas; aprender a aprender; trabalho em equipa. Estas competências poderão servir para melhorar programas de formação de professores de EaD, certificação de competências e identificação do perfil do professor de EaD na UEM e instituições parceiras. Recomenda-se aos professores que visem o desenvolvimento de competências de EaD e o seu desenvolvimento profissional, a lecionação nesta modalidade, a leitura de textos sobre o EaD, participação em formações/seminários sobre EaD, e pesquisa em EaD e TIC.
description: Indagatio Didactica, vol. 7 n.º 1 (2015)
Sapo Campus: contributo para a definição de uma proposta de implementação de uma Universidade Júnior online em Portugal
Creators: name: Tavares, Rita
name: Pedro, Luís
Publisher: name: Indagatio Didactica
Year: 2019

description: Atendendo à necessidade de promover estratégias pedagógicas e iniciativas que potenciem, desde os primeiros anos de escolaridade, o encontro dos centros de interesse do aluno e a sua vocação profissional, o presente artigo tem como objetivo traçar um contributo para a definição de uma proposta de implementação de uma Universidade Júnior online em Portugal, tendo como plataforma tecnológica de suporte o Sapo Campus. Para tal, num primeiro momento é realizado um breve enquadramento das práticas levadas a cabo na Europa e em Portugal ao nível das Universidades Júnior e o impacto da sua implementação, sendo num segundo momento realizado um breve enquadramento da implementação, impacto e potencial educativo da plataforma Sapo Campus. Por último, é apresentada uma proposta, alto nível, de implementação de uma Universidade Júnior online em Portugal, desenhando-se, para tal, a missão; os objetivos; o público-alvo e os intervenientes; as possibilidades de implementação, exploração, manutenção e dinamização; e a metodologia de avaliação dos alunos.
description: Indagatio Didactica, vol. 7 n.º 1 (2015)
Reinvestigation of carvotanacetone after 100 years along with minor terpenoid constituents of Blumea malcolmii Hook. F. essential oil
Creators: name: Joshi, Rajesh K.
name: Pai, Sandeep R.
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Reinvestigation of essential oil constituents of Blumea malcolmii Hook. F. (Asteraceae) was carried out after 100 years using gas chromatography equipped with flame ionisation detector (GC-FID) and gas chromatography coupled with mass spectrometry (GC/MS). Eighteen constituents, representing 99.2% of the total oil, were identified. The major compound was identified by GC/MS and NMR (1H and 13C) as carvotanacetone (92.1%). The minor compounds of essential oil have also been identified for the first time in B. malcolmii. The oil was found to be rich in oxygenated monoterpene-type constituents (95.0%).
Adsorption of selected micropollutants on powdered activated carbon and biochar in the presence of kaolinite
Creators: name: Eunseon Kim
name: Chanil Jung
name: Jonghun Han
name: Namguk Her
name: Park, Chang Min
name: Ahjeong Son
name: Yeomin Yoon
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: 60506 Virology

description: Commercially available powdered activated carbon (PAC) and activated biochar (produced in the laboratory), combined with kaolinite, were used to determine the adsorption of a beta-blocker (atenolol, ATN) and sunscreen compounds (benzophenone, BZP; and benzotriazole, BZT); a hypothesis was made that the presence of kaolinite would increase the adsorption of those target compounds. Various synthetic solutions were prepared by altering the pH, background ions, ionic strength, and glucose/humic acid content to mimic various natural water conditions. The removal efficiency of biochar–kaolinite was higher than that of PAC–kaolinite, presumably because the relatively high surface area and pore volume of biochar resulted in a higher adsorption capacity for the target compounds. Removal of the compounds in the absence of kaolinite followed the order BZP > ATN > BZT (a (mg/g); Langmuir maximum adsorption capacities were as follows: 85.0, 20.6, and 15.6 for PAC, and 125, 37.5, and 25.9 for biochar, respectively). An increase in the pH from 3.5 to 10.5 decreased the adsorption of ATN, BZP, and BZT by 14.5, 2.1, and 14.4%, respectively, by biochar–kaolinite. Additionally, an increase in background ions and their ionic strength, using NaCl, Na2SO4, and CaCl2, increased the adsorption of the target compounds slightly, by 2.0–6.6%, depending on the target compound. Overall, biochar had a higher adsorption capacity for all chemicals tested compared with PAC, suggesting that biochar derived from loblolly pine chip may be a promising sorbent for water/wastewater treatment and environmental applications.
Chemical constituents and their bioactivities from the fruits of Vitex negundo var. cannabifolia
Creators: name: Sheng-Tao Fang
name: Na-Na Kong
name: Bing-Fei Yan
name: Cui-Yun Yang
name: Wang, Jian-Hua
name: Liu, Su-Jing
name: Hai-Zhu Jin
name: Chuan-Hai Xia
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry

description: Phytochemical investigation of the fruits of Vitex negundo var. cannabifolia led to the isolation of 22 compounds (1–22). Their structures were elucidated mainly by spectroscopic analysis and comparison with the literature data. Among them, compounds 1 and 2 were two new artificial lignans. Primary bioassay showed that the polymethoxyflavones 9–12 displayed moderate-to-weak cytotoxicity against human HepG2 and rat C6 cell lines, while the triterpenoids 13–17 exhibited significant brine shrimp lethality with LC50values of 7.5–29.4 μM.
Top ten discoveries of the year: Neurotrauma
Creators: name: Perl, Daniel P
Publisher: name: Free Neuropathology
Year: 2020

description: Neurotrauma represents a major public health problem and is one of the leading causes of death and disability worldwide. Despite its high prevalence, there are major gaps in our understanding of the underlying patho-physiology leading to the substantial morbidity and mortality associated with this problem. Here, ten studies published in 2019 are reviewed that addressed issues related to the acute and long-term effects of neurotrau-ma. These studies can be broken down into three separate categories, namely, the importance of neurotrau-ma-based damage to the cerebrovascular unit, white matter damage following neurotrauma, and research related to the long-term neurodegenerative consequences of repeated head trauma, especially chronic trau-matic encephalopathy. The advances highlighted here indicate that progress has been made. However, major gaps in knowledge remain which will require additional neuropathologic studies of clinical specimens, as well as the development and investigation of a wide range of relevant pre-clinical models. Further efforts in this field are clearly needed if there are to emerge better clinical outcomes for the numerous patients that suffer neuro-trauma each year as well as those currently suffering from its long-term effects.
description: Free Neuropathology, Bd. 1 (2020)
Editorial
Creators: name: Bettencourt, Teresa
Publisher: name: Indagatio Didactica
Year: 2019

description: O presente número da Revista Online Indagatio Didactica é composto por onze artigos distribuídos pelas secções Didática e Desenvolvimento Curricular, com seis documentos; secção Tecnologias da Informação em Educação com quatro artigos; e secção Avaliação com um trabalho. O artigo incluído na rubrica Avaliação, da autoria de Eliane Cruz, Bernardino Lopes e Nilza Costa, debruça-se sobre a articulação entre a investigação e as práticas no que respeita à avaliação formativa das aprendizagens no contexto da formação pós-graduada de professores em Portugal. Decorrente do estudo conduzido, os autores apresentam sugestões relativas a várias sub-dimensões tais como, os processos de auto e hétero avaliação e de regulação das aprendizagens.
description: Indagatio Didactica, vol. 7 n.º 1 (2015)
Aprender Ciências e Desenvolver o Pensamento Crítico: percursos educativos no 1º ciclo do Ensino Básico
Creators: name: Gonçalves, Emília
name: Vieira, Rui Marques
Publisher: name: Indagatio Didactica
Year: 2019

description: O presente artigo apresenta o estudo realizado no âmbito do mestrado em ensino do 1.º e 2.º ciclo do ensino básico (CEB). O estudo teve a finalidade de desenvolver capacidades de pensamento crítico (PC) em alunos do 2.º ano do 1.º CEB, através da diversificação de estratégias de ensino e de aprendizagem, consideradas, potencialmente, promotoras destas capacidades, nomeadamente debate, mapa de conceitos e trabalho experimental. A investigação assentou numa metodologia de investigação-ação do tipo qualitativo tendo como participantes 22 alunos do 2.º ano de escolaridade. A recolha das evidências realizou-se utilizando instrumentos diversos, tais como: diário do investigador, gravações áudio de aulas e registos escritos dos alunos. Em conformidade com a análise dos dados recolhidos, concluímos que os alunos, participantes do estudo, evidenciam, de forma não homogénea, o uso de capacidades de PC, na área da clarificação elementar. As evidências referem-se, nomeadamente, à capacidade de focar uma questão, à capacidade de analisar argumentos e à capacidade de fazer e responder a questões de clarificação e desafio. Foram exemplos de evidências as seguintes situações: quando os alunos, colocados perante três opiniões distintas, tiveram que optar apenas por uma, justificando-a; quando, através da construção do mapa de conceitos, demonstraram a capacidade de analisar argumentos e nas intervenções orais. Consideramos, por isso, que as estratégias usadas são potenciadoras do desenvolvimento de capacidades de PC dos alunos do 1.º CEB. Contudo, é necessário que a sua implementação seja realizada de forma sistemática, pois só assim poderemos aferir do seu desenvolvimento e mobilização efetiva.
description: Indagatio Didactica, vol. 7 n.º 1 (2015)
A construção de identidades nas interações entre professor e aluno: um olhar sobre as atividades de comunicação/produção
Creators: name: Ferroni, Roberta
name: Sá, Maria Helena Araújo E
Publisher: name: Indagatio Didactica
Year: 2019

description: O presente artigo propõe-se estudar os atos de identidade na aula de língua estrangeira, ou seja, os comentários linguísticos com os quais os participantes revelam sua identidade e o papel social que almejam alcançar. A análise nos permitiu identificar algumas necessidades do professor quanto aos aspectos que ele é capaz ou não de explorar no decorrer das atividades de comunicação/produção que nos permitem construir planos globais de formação.
description: Indagatio Didactica, vol. 7 n.º 1 (2015)
A Língua Portuguesa na Resolução de Problemas no 2.º CEB
Creators: name: Simões, Ana Raquel
name: Oliveira, Filipa
Publisher: name: Indagatio Didactica
Year: 2019

description: O presente artigo pretende divulgar algumas das conclusões de um estudo realizado no âmbito da Unidade Curricular de Seminário de Investigação Educacional B2, do Mestrado em Ensino do 1.º e 2.º Ciclos do Ensino Básico e levado a cabo numa escola pública do Ensino Básico de um Agrupamento de Escolas do distrito de Aveiro, no ano letivo de 2013/2014. Com base numa metodologia de Investigação-Ação/Estudo de Caso, pretendeu-se demonstrar a importância e influência que a área da Língua Portuguesa poderá ter na compreensão e domínio da Matemática. Tendo em consideração o exposto anteriormente, apresentam-se os principais objetivos deste estudo: 1) Diagnosticar as principais dificuldades dos alunos na resolução de problemas matemáticos; 2) Implementar instrumentos que permitam desenvolver algumas capacidades mobilizadas na resolução de problemas matemáticos (diagnosticadas previamente); 3) Avaliar a evolução/desenvolvimento de algumas capacidades na resolução de problemas. Congregando todos os aspetos referidos, a finalidade principal do estudo foi investigar a influência que a Língua Portuguesa (leitura e compreensão) pode ter na resolução de problemas matemáticos, estando intimamente relacionada com a pergunta para a qual se pretendia obter resposta no final da implementação do projeto: “Qual a influência que a Língua Portuguesa (leitura e compreensão) pode ter na resolução de problemas matemáticos?”. Efetivamente, no final da implementação do estudo, verificou-se que houve algumas melhorias significativas nos alunos no que respeita à resolução de problemas.
description: Indagatio Didactica, vol. 7 n.º 1 (2015)
Rumos e avanços da Modelagem Matemática na Educação Matemática Brasileira: Um olhar sobre a pesquisa a partir dos resumos do V SIPEM
Creators: name: Klüber, Tiago Emanuel
name: Tambarussi, Carla Melli
name: Loureiro, Daniel Zampieri
name: Wichnoski, Paulo
name: Oliveira, Wellington Piveta
Publisher: name: Indagatio Didactica
Year: 2019

description: Existem diferentes modos de tematizar os rumos e avanços da Modelagem Matemática na Educação Matemática. Dentre eles, destaca-se a pesquisa que vem sendo realizada. Assim, a partir de um projeto de metapesquisa, focamos como material de análise os resumos de pesquisa publicados no V Seminário Internacional de Pesquisa em Educação Matemática, GT10, Modelagem Matemática, sob a interrogação: O que revelam os resumos publicados no V SIPEM sobre a pesquisa em Modelagem Matemática na Educação Matemática? A nossa abordagem de pesquisa é qualitativa segundo a visão fenomenológica. E o modo como interpretamos os dados é de cunho hermenêutico. Por ocasião do já realizado na pesquisa, apresentamos neste artigo as seguintes categorias: 1) Sobre as instituições; 2) Sobre a autoria; 3) Sobre o estágio/nível da pesquisa; 4) Sobre o contexto interno da pesquisa; 5) Sobre a abordagem da pesquisa; 6) Sobre os modos de recolha dos dados; 7) Sobre os modos de análise empregados; 8) Sobre o focado e buscado nas pesquisas e 9) Sobre o respondido nas investigações. Cada uma delas é descrita e interpretada à luz da interrogação e do contexto da pesquisa vigente.
description: Indagatio Didactica, vol. 7 n.º 1 (2015)
One new berberine from the branches and leaves of Polyalthia obliqua Hook.f. & Thomson
Creators: name: Wu, Li-Jun
name: Zheng, Cai-Juan
name: Liu-Kai Wang
name: Chang-Ri Han
name: Song, Xiao-Ping
name: Guang-Ying Chen
name: Zhou, Xue-Ming
name: Shou-Yuan Wu
name: Xiao-Bao Li
name: Bai, Meng
name: Liu, Chun-Xin
name: Yao, Jun
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences

description: One new alkaloid consanguine B (1), together with 10 known alkaloids (2–11), were isolated from ethanol extract of the branches and leaves of Polyalthia obliqua Hook.f. & Thomson collected in the Hainan Province, China. Their structures were elucidated by the detailed analysis of comprehensive spectroscopic data. All compounds were evaluated for their cytotoxic activities. Compound 1 showed weak cytotoxic activities against Hela and MCF-7 human cancer cell lines.
A new flavonoid glycoside from Elsholtzia bodinieri
Creators: name: Zhong, Jin-Dong
name: Feng, Yue
name: Li, Hong-Mei
name: Xue-Shan Xia
name: Rong-Tao Li
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Inorganic Chemistry

description: A new flavonoid glycoside, eriodictyol 7-O-(6″-caffeoyl)-β-D-glucopyranoside (1), along with 14 known compounds, were isolated from the whole plants of Elsholtzia bodinieri. All of the structures were determined by spectroscopic methods and chemical transformation. Compound 1 and luteolin (9) exhibited potent anti-HCV activities with a selective index of 135.85 and 20.84, respectively.
Management of urinary stone disease in general practice: A French Delphi study
Creators: name: Abergel, Sandra
name: Benoit Peyronnet
name: Seguin, Philippe
name: Bensalah, Karim
name: Traxer, Olivier
name: Freund, Yonathan
Publisher: name: Taylor & Francis
Year: 2016
Subjects: subject: Medicine
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology
subject: Science Policy
subject: Hematology

description: Background: Recommendations for the management of urolithiasis in primary care are lacking in France. The Delphi method was used to seek consensus from an expert panel regarding outpatient management of urolithiasis. Methods: We gathered 25 French experts from five clinical specialties: general practice, urology, nephrology, emergency medicine and radiology. The first survey was formulated after an exhaustive literature review. At each of the three rounds, the experts were given the results of the previous round and were asked again to complete the survey. The threshold of 70% of the vote was taken as defining consensus. A final round of validation involving five additional general practitioners was conducted. Results: Twenty experts participated in the study (five urologists, four nephrologists, four general practitioners, four emergency physicians, and three radiologists, participation rate = 80%). According to the survey results, most patients could be treated as outpatients (70.5% of the votes) but a biological (urine dipstick and culture, serum creatinine ± serum β-hcg) and imaging (renal ultrasound + Kidney-Ureters-Bladder X-ray or low-dose CT san) work-up is recommended within 24 hours. Non-steroidal anti-inflammatory drugs are the analgesics of choice. An aetiological work-up should be performed after the second episode of renal colic. A follow-up imaging should be carried out yearly in urolithiasis patients. Conclusion: With the use of the Delphi method, we propose a multidisciplinary recommendation for the management of urolithiasis patients in primary care.
Dalla ragione morale di Kant alla teoria dei sistemi sociali di Luhmann. (Submitted)
Creators: name: TOMASELLI, ANTONIO
Publisher: name: Zenodo
Year: 2012
Subjects: subject: Political philosophy
subject: Filosofia politica

description: Con questo articolo mi sono proposto di mettere in evidenza l'inadeguatezza della ragione di Kant non solo a giustificarsi agli occhi del sapere scientifico Postmoderno, ma anche di raggiungere il "miraggio dell'universale". Ponendomi allora nella posizione di un osservatore, ho potuto vedere che una teoria in grado di descrivere il presente, può essere solo quella che innanzitutto rifiuta ontologie strutturali; questo mi ha permesso di trovare allora nei sistemi sociali di Luhmann, da un lato una teoria in grado di descrivere la complessità sociale, dall'altro quello di mettere in evidenza che la ragione, da qualsiasi osservatore venga ricostruita, si basa sempre su un paradosso che si dispiega nel tempo sempre come tale a seconda degli osservatori e delle distinzioni che volta per volta vengono utilizzate. Per concludere allora, credo si possa poter sostenere che una ragione valida per tutti non esita; c'è però la possibilità di agire costruendo senso e credo che questa sia una acquisizione postmoderna.
History and Science of Anatomy
Creators: name: Ahmad, Umar
Publisher: name: Zenodo
Year: 2024

description: This presentation titled "History and Science of Anatomy" offers a comprehensive exploration of the development of anatomical knowledge throughout history. The goals of this presentation include understanding the historical evolution of anatomical practices, recognizing key figures and their significant contributions, and examining the impact of anatomical discoveries on medicine. The presentation spans from ancient to modern times, covering ancient, medieval, renaissance, and modern anatomical practices, providing a thorough understanding of the advancements in the field of anatomy. This slide deck serves as a valuable resource for students, educators, and professionals interested in the history and science of anatomy.
Development of Automatic Stopper Device for Commonly Used Centrifugal Pumps in Egypt
Creators: name: Hegazy, Rashad
Publisher: name: figshare
Year: 2016
Subjects: subject: 99901 Agricultural Engineering
subject: FOS: Other engineering and technologies

description: Centrifugal instruments are prevailing used for irrigating fields in Egypt as the most common surface irrigation method. The major problem which confronts the farmers at operating these instruments is stopping it at the time of water shortage. Two main reasons can lead to operate these machines in absence of water, first one related suction tube which it is not completely covered by water in sometimes; second one is existence of accumulated mud and other materials around suction tube filter. So, the main object was to develop an automatic stopper device to turn off the machine at its time of running out of water. The device consisted of three main parts, metal base, water tank and disconnecting arm. The theory depended at using part of discharged water which comes to small tube for cooling engine and to keep this amount of water fixed all the time in specific tank. This amount of water working as equilibrium force and any change in its amount will reflect to movement in the manufactured device components. The device showed good performance in turning of machine at the moment that 35% of filter face height became without water coverage. It also can stop the engine if the water residues and mud cover 50% or more of suction tube area which is so important for farmer to keep the machine running without problems.