bluuebunny/crossref_metadata_2025_split huggingface dataset:
KOMBINASI GEOLISTRIK DAN GRID SAMPLING UNTUK MENGIDENTIFIKASI ADANYA KONTAMINASI HYDROCARBON PADA TANAH
Authors: Supriyadi Supriyadi 
Published: February 2021

Hydrocarbon pada permukaan tanah dapat dilihat secara visual namun hal ini tidak dapat menghasilkan nilai kuantitatif dan kualitatif yang akurat dalam menentukan berapa jumlah volume dari tanah yang terkontaminasi tersebut. Oleh karena itu dibutuhkan studi yang dapat menjelaskan secara kuantitatif dan kualitatif pada tanah terkontaminasi sehingga memudahkan dalam penanganan dan pengelolaannya.
Geolistrik merupakan salah satu metode kuantitatif yang dapat digunakan dalam menentukan kondisi permukaan tanah. Secara kualitatif, komposisi tanah dapat dibuktikan dengan sampling laboratorium untuk menentukan apakah termasuk ke dalam kategori limbah bahan berbahaya dan beracun (LB3) atau tidak sesuai dengan lampiran V yang terdapat pada Peraturan Pemerintah No.101 tahun 2014. Studi ini fokus pada tahapan untuk mengidentifikasi adanya hydrocarbon pada tanah menggunakan kombinasi geolistrik dan grid sampling sehingga mendapatkan volume yang lebih akurat besaran tanah terindikasi mengalami kontaminasi. Sedangkan batasan studi ini adalah dilakukan pada bekas fasilitas B-mediasi yang diduga terkontaminasi.
Berdasarkan studi geolistrik yang telah dilakukan, volume permukaan tanah yang diduga terkontaminasi diperoleh sebesar 689 m3 (setara 1.381 ton). Sementara ketika menggunakan kombinasi data geolistrik dan grid sampling pada area diduga tersebut, didapat volume yang terindikasi terkontaminasi sebesar 594 m3 (setara 1.190 ton). Hasil ini dapat disimpulkan bahwa dengan menggunakan kombinasi metode geolistrik dan grid sampling dalam mengidentifikasi adanya kontaminasi pada permukaan tanah dapat menjelaskan secara kuantitatif dan kualitatif volume tanah yang terkontaminasi dengan keakuratan sebesar 115%.
Evaluation of changes in some physico-chemical properties of bottled water exposed to sunlight in Bauchi State, Nigeria
Authors: Daffi Rose E. , Wamyil Fwangmun B. 
Published: February 2021

Abstract. It is common for bottled water and other assorted drinks to be seen displayed outside stores and in the sun in most parts of Nigeria. The country is mostly hot year-round, and over the course of the year, temperatures can rise to as high as 40 ∘C around March–April in the study area. The leaching effect of chemicals from polyethylene terephthalate (PET) bottled water was investigated for five commercially available bottled water brands. Temperature, pH, antimony, bisphenol A (BPA), and nitrate levels were measured on days 0, 14, and 28 for control samples and samples exposed to direct sunlight, using destructive sampling technique. Antimony was not detected in brands A, B, and E in the baseline measurement at day 0, while brands C and D had low values; after 28 d all the control
samples still had antimony levels within the United States Environmental
Protection Agency (US EPA) standard. Meanwhile, all the samples exposed to
sunlight exceeded US EPA standard levels at 14 and 28 d, except brand A
which was within limit at 14 d with value of 4.59 µg L−1. All control
and exposed samples were below the European Union Drinking Water Directive
(EU DWD) total daily intake (TDI) of BPA (0.05 mg per kilogram of body
weight)−1 d−1. Values obtained for nitrate showed that all control samples did not exceed the US EPA guideline level for nitrates in drinking water for days 0, 14, and 28, while three of the samples, i.e. brands C, D, and E, exceeded the guideline level at day 28. Exposure of bottled water to sunlight was seen to impair the quality of the water for consumption.
Investigating the impact of exit effects on solute transport in macroporous media
Authors: Raimbault Jérôme , Peyneau Pierre-Emmanuel , Courtier-Murias Denis , Bigot Thomas , Gil Roca Jaime , Béchet Béatrice , Lassabatère Laurent 
Published: February 2021

Abstract. The effect of macropore flow on solute transport has spurred much research over the last forty years. In this study, non-reactive solute transport in water-saturated columns filled with porous media crossed by a macropore was experimentally and numerically investigated. The emphasis was put on the study of exit effects, whose very existence is inherent to the finite size of any experimental column. We specifically investigated the impact of a filter at the column outlet on water flow and solute transport in macroporous systems. Experiments involving breakthrough measurements and magnetic resonance imaging (MRI) showed that solute transport displayed some significant non-unidirectional features, with a strong mass exchange at the interface between the macropore and the matrix. Fluid dynamics and transport simulations indicated that this was due to the non-unidirectional nature of the flow field close to the outlet filter. The flow near the exit of the column was shown to be strongly impacted by the presence of the outlet filter, which acts as a barrier and redistributes water from the macropore to the matrix. This impact was apparent on the breakthrough curves and the MRI images. It was also confirmed by computer simulations and could, if not properly taken into account, impede the accurate inference of the transport properties of macroporous media from breakthrough experiments.
Recent acceleration of Denman Glacier (1972–2017), East Antarctica, driven by grounding line retreat and changes in ice tongue configuration
Authors: Miles Bertie W. J. , Jordan Jim R. , Stokes Chris R. , Jamieson Stewart S. R. , Gudmundsson G. Hilmar , Jenkins Adrian 
Published: February 2021

Abstract. After Totten, Denman Glacier is the largest contributor to sea
level rise in East Antarctica. Denman's catchment contains an ice volume
equivalent to 1.5 m of global sea level and sits in the Aurora Subglacial
Basin (ASB). Geological evidence of this basin's sensitivity to past warm
periods, combined with recent observations showing that Denman's ice speed
is accelerating and its grounding line is retreating along a retrograde
slope, has raised the prospect that its contributions to sea level rise
could accelerate. In this study, we produce the first long-term
(∼50 years) record of past glacier behaviour (ice flow speed,
ice tongue structure and calving) and combine these observations with
numerical modelling to explore the likely drivers of its recent change. We
find a spatially widespread acceleration of the Denman system since the
1970s across both its grounded (17±4 % acceleration; 1972–2017)
and floating portions (36±5 % acceleration; 1972–2017). Our
numerical modelling experiments show that a combination of grounding line
retreat, ice tongue thinning and the unpinning of Denman's ice tongue from a
pinning point following its last major calving event are required to
simulate an acceleration comparable with observations. Given its bed
topography and the geological evidence that Denman Glacier has retreated
substantially in the past, its recent grounding line retreat and ice flow
acceleration suggest that it could be poised to make a significant
contribution to sea level in the near future.
Crystallographic analysis of temperate ice on Rhonegletscher, Swiss Alps
Authors: Hellmann Sebastian , Kerch Johanna , Weikusat Ilka , Bauder Andreas , Grab Melchior , Jouvet Guillaume , Schwikowski Margit , Maurer Hansruedi 
Published: February 2021

Abstract. Crystal orientation fabric (COF) analysis provides information about the c-axis orientation of ice grains and the associated anisotropy and microstructural information about deformation and recrystallisation processes within the glacier. This information can be used to introduce modules that fully describe the microstructural anisotropy or at least direction-dependent enhancement factors for glacier modelling.
The COF was studied at an ice core that was obtained from the temperate Rhonegletscher, located in the central Swiss Alps.
Seven samples, extracted at depths between 2 and 79 m, were analysed with an automatic fabric analyser.
The COF analysis revealed conspicuous four-maxima patterns of the c-axis orientations at all depths.
Additional data, such as microstructural images, produced during the ice sample preparation process, were considered to interpret these patterns.
Furthermore, repeated high-precision global navigation satellite system (GNSS) surveying allowed the local glacier flow direction to be determined.
The relative movements of the individual surveying points indicated longitudinal compressive stresses parallel to the glacier flow.
Finally, numerical modelling of the ice flow permitted estimation of the local stress distribution. An integrated analysis of all the data sets provided indications and suggestions for the development of the four-maxima patterns.
The centroid of the four-maxima patterns of the individual core samples and the coinciding maximum eigenvector approximately align with the compressive stress directions obtained from numerical modelling with an exception for the deepest sample.
The clustering of the c axes in four maxima surrounding the predominant compressive stress direction is most likely the result of a fast migration recrystallisation.
This interpretation is supported by air bubble analysis of large-area scanning macroscope (LASM) images.
Our results indicate that COF studies, which have so far predominantly been performed on cold ice samples from the polar regions, can also provide valuable insights into the stress and strain rate distribution within temperate glaciers.
Por uma educação do campo que contemple as parcerias nos processos formativos e as formas identitárias dos povos do campo. DOI: 10.5212/OlharProfr.v.15i1.0003
Authors: Rodrigues Priscila Andrade Magalhães 
Published: February 2021

Este ensaio acadêmico constitui um esforço analítico sobre as questões que emergem sobre a produção em educação do e no campo, de modo a pensar uma proposta que contemple a construção de parcerias entre os envolvidos no movimento “por uma educação do campo” e que considere as formas identitárias dos povos do campo. Buscou-se, primeiramente, a partir da literatura dedicada ao tema, levantar as principais questões ligadas à educação do campo, em momento de grande efervescência de estudos e produção acadêmica sobre o assunto. Em um segundo momento, buscou-se reconhecer o lugar da escola do campo na formação de docentes, e especialmente o estabelecimento de parcerias entre universidade, movimentos sociais, ONGs, e demais parceiros, e as escolas do campo, na tentativa de fomentar processos formativos que articulem teoria e prática, e que se atentem para as questões identitárias dos povos do campo e sua luta por reconhecimento social. Por fim, buscou-se olhar especialmente para a legislação e compreender como a questão da identidade dos povos do campo é tratada nestes textos, e trazer as contribuições analíticas para a construção da identidade dos povos do campo, na perspectiva de que toda análise cultural precisa considerar a complexidade da relação social entre os sujeitos.
Dilemas de professores tutores iniciantes na educação a distância
Authors: Costa Sirlene Fabris , Rausch Rita Buzzi 
Published: February 2021

Socializamos nesta produção algumas reflexões sobre os dilemas de professores tutores iniciantes na educação a distância, a EaD, que tem produzido modificações nas relações sociais e na forma de ensinar e de aprender na contemporaneidade. Diante destas mudanças, autores como Tardif (1997; 2002; 2008), Nóvoa (2009); Pimenta (1999); Schlemmer (2009; 2012), Moran (2011), Belloni (2008), entre outros contribuem na discussão desta nova modalidade de ensinar e de aprender. A investigação buscou respostas para a seguinte questão: quais os principais dilemas que se fazem presentes na EaD, nos dizeres de professores tutores iniciantes em cursos ofertados por uma faculdade privada do estado de Santa Catarina? O objetivo geral foi compreender os dilemas de professores tutores iniciantes na EaD. De abordagem qualitativa, realizamos entrevistas com nove professores tutores iniciantes. As categorias de análise foram definidas a posteriori, a partir das regularidades encontradas nas manifestações dos participantes. Os principais dilemas apresentados pelos professores iniciantes foram quanto à dificuldade de desenvolver um processo de mediação da aprendizagem dos alunos; a necessidade de conhecer o conteúdo de diversas disciplinas; a não autonomia nos processos de avaliação da aprendizagem dos alunos; a pouca maturidade de alguns alunos; a falta de formação continuada específica e a necessidade de constituir uma identidade profissional docente na EaD. Conclui-se que a pesquisa propiciou uma reavaliação dos dilemas presentes na EaD e identificou a necessidade de avanços no desenvolvimento profissional docente do professor tutor iniciante.
Low Incidence of Asymptomatic Positive Patients Detected During Preoperative Testing for Total Joint Arthroplasty During the COVID-19 Pandemic
Authors: Zangrilli Julian , Hameed Daniel , Chisari Emanuele , Vannello Chris , Courtney P. Maxwell , Krueger Chad A. 
Published: February 2021

Introduction:
Although the pause in elective surgery was necessary to preserve healthcare resources at the height of the novel coronavirus disease 2019 (COVID-19) pandemic, recent data have highlighted the worsening pain, decline in physical activity, and increase in anxiety among cancelled total hip and knee arthroplasty patients. The purpose of this study was to evaluate the effectiveness of our staged reopening protocol and the incidence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) among elective arthroplasty patients.

Methods:
We identified all elective hip and knee arthroplasty patients who underwent our universal COVID-19 testing protocol during our phased reopening between May 1, 2020, and July 21, 2020, at our institution. We recorded the SARS-CoV-2 test results of each patient along with their demographics, medical comorbidities, and symptoms at the time of testing. We followed each of these positive patients through their rescheduled cases and recorded any complications or potential SARS-CoV-2 healthcare exposures.

Results:
Of the 2,329 patients, we identified five patients (0.21%) with a reverse transcription-polymerase chain reaction--confirmed SARS-CoV-2 positive test, none with symptoms. All patients were successfully rescheduled and underwent their elective arthroplasty procedure within 6 weeks of their original surgery date. None of these patients experienced a perioperative complication at the time of their rescheduled arthroplasty procedure. No orthopaedic surgeon or staff member caring for these patients reported a positive SARS-CoV-2 test.

Conclusion:
Our phased reopening protocol with universal preoperative virus testing was safe and identified a low incidence of SARS-CoV-2 among asymptomatic, elective arthroplasty patients at our institution. With uncertainty regarding the trajectory of the COVID-19 pandemic, we hope that this research can guide future policy decisions regarding elective surgery.
A EXTENSÃO COMO ESPAÇO PARA APLICAÇÃO DE METODOLOGIAS ATIVAS DE ENSINO- APRENDIZAGEM NA FORMAÇÃO DO ESTUDANTE DE MEDICINA
Authors: Lannes Jéssica Silva , Lima Allyson Wosley de Sousa , Delfino Alanna dos Santos , Vale Thais Campelo Bedê , Machado Edite Carvalho , Vieira Letícia Ramos , Bezerra Gisele Nogueira , Bachur Tatiana Paschoalette Rodrigues 
Published: February 2021

Esse estudo é um relato de experiência de acadêmicos do curso de graduação em Medicina da Universidade Estadual do Ceará (UECE) acerca da vivência do projeto de extensão universitária Reanimação Cardiopulmonar (RCP) para Todos, um projeto educativo teórico-prático que promove conhecimento para comunidade e para os acadêmicos da Liga Acadêmica de Cardiologia (LICARDIO) do curso de Medicina da UECE. Esse projeto tem como objetivo capacitar a comunidade para socorrer adequadamente as vítimas de Parada Cardiorrespiratória (PCR), com o intuito de aumentar a sobrevida desses indivíduos e consta com duas etapas de aprendizado. Inicialmente são realizadas capacitações internas com os membros da LICARDIO por meio de seminários teóricos ministrados pelos próprios acadêmicos. A partir disso, são realizadas as intervenções do projeto de extensão com a comunidade. Nessas intervenções, são iniciadas as capacitações com o público por meio de exposição oral sobre a PCR, após a teoria é iniciado o treinamento prático de simulação da PCR com manequins próprios para a atividade de RCP. As atividades de educação em saúde que compõem o projeto impactam diretamente na sobrevida de pacientes vítimas de PCR se mostrou também um rico campo de práticas nos moldes das metodologias ativas em que o discente assume a posição principal na busca e formação do conhecimento. Conhecimento esse não alheio à realidade que o cerca, mas que dialoga e troca com a mesma no sentido de formar profissionais que saibam responder às demandas da sociedade e que compreendem o processo saúde-doença como um complexo sistema de variáveis sociais, ambientais e biológicas.
Palavras-chave: Metodologias Ativas. Reanimação Cardiopulmonar. Parada Cardiorrespiratória
ASSISTÊNCIA NAS UNIDADES DE ESTRATÉGIA DE SAÚDE DA FAMÍLIA NA PERCEPÇÃO DOS USUÁRIOS DO SERVIÇO DE SAÚDE MENTAL
Authors: Caldas Nairan Morais 
Published: February 2021

O estudo objetivou conhecer a percepção dos usuários do serviço de saúde mental sobre a assistência nas Unidades de Estratégia de Saúde da Família. Tratou-se de uma pesquisa com abordagem qualitativa, de caráter exploratório, por meio da aplicação de entrevista semiestruturada individual aos usuários do Centro de Atenção Psicossocial de Ilhéus/ Bahia. A análise se deu a partir da emergência de informações recorrentes que foram codificadas em categorias. Em seguida, procurou-se referencial teórico que abarcasse essas categorias, relacionando com o que foi levantado. Verificou-se nos discursos: uma deficiência na formação de vínculo entre os usuários e as equipes da Estratégia de Saúde da Família; que suas demandas clínicas, na maioria, são atendidas com dificuldades, e; um despreparo das equipes quando se trata das necessidades em saúde mental, imperando o encaminhamento e até mesmo a recusa de atendimento. Diante do exposto, fica evidente a importância de se realizar estudos mais aprofundados sobre a temática e ampliar o conhecimento sobre a saúde mental na Atenção Básica, assim como o conhecimento do usuário com transtorno mental, acerca dos seus direitos como cidadão de usufruir dos serviços da Estratégia de Saúde da Família e de participar do seu próprio tratamento.
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Verbs of movement in long-acting forms in modern German
Authors: Kabalina Olesia Igorevna 
Published: February 2021

The subject of the study is the characteristics of verbs of movement in the German language. The aim of the work was to identify the features of German verbs of movement, implemented in forms expressing long-term action ("Verlaufsformen"). These forms were peculiar to colloquial speech, but now some of them are already used as a language norm. After determining the corpus of analyzed verbs, each verb of movement was analyzed according to three possible forms of long-term action recorded by the dictionary. The characteristics of the presence/absence of a direct complement, a reflexive particle in the verb were considered, the frequency of territorial use and the possibility of implementation in speech were analyzed. The research methods were the continuous sampling method, the comparative analysis method, the description method, and the statistical method. В The scientific novelty of the study consists in a comprehensive description of the features of the functioning of movement verbs in long-acting forms in modern German. As a result, it was found that most verbs are implemented in the same long-acting form, some verbs are used in several forms, but at the same time a priority form is noted, all verbs have a similar implementation according to other signs indicated in the study. The results obtained can be used in the development of materials for theoretical courses on German grammar, theory and practice of translation, interpretation of text in German, communication with native speakers.
Spectroscopic and Theoretical Explorations on 6-Hydromethyl-4-Methoxy-4- Methoxytetrahydro-Pyran-2, 3, 5-Triol-A Biomolecule
Authors: Priya M. Krishna , Krithika S. , Shirmila D. Angeline , Sathya S. , Usha G. 
Published: February 2021

The chemical compound 6-hydromethyl-4-methoxy-4- methoxytetrahydro-pyran-2, 3, 5-triol (C7H14O6), was derived from the ethanol extract of Senna auriculata flower via GC-MS. FT-IR and NMR characterization of the compound support covalent bonding information and degree of degeneracy, respectively. 3D molecular structure was optimized to enhance the accuracy of computations. MEP, NBO, HOMO-LUMO, and Mulliken charge distribution studies provide details like reactive sites, electron density dislocation, and molecular interactions, charge transfer within the molecule and frontier orbital energies, electron density on the individual atom, and these were computed using hybrid B3-LYP quantum level with 6-311++G(d, p) basis set. Thermodynamic properties such as heat capacity, entropy, enthalpy, and their relation with temperature changes for the title molecule were also analyzed using THERMO.PL software. Non-linear optical properties namely polarizability, first-order hyperpolarizability, and electronic dipole moment have also been computed at B3-LYP level with 6-311++G (d, p) basis set. Docking simulation was initiated on the title molecule using Autodock 4.2 software and found to be an excellent inhibitor of ALR2, an enzyme.
A Tale of Two Nations: An Examination of Technical and Vocational Education and Training (TVET) in England and Ireland in the Second Half of the 19th Century against the Background of the Low Standing of TVET in Contemporary Education Systems
Authors: Hyland Terry 
Published: February 2021

A number of recent studies have pointed to the historically low standing of vocational education against liberal/academic studies in schools and colleges, a status which shows little sign of improvement. Various perspectives on the causes of this state of affairs have been advanced over the years, and philosophical, historical, economic and political factors have been examined in depth. Adopting a predominantly historical/philosophical perspective, this article attempts to throw light on current debates by examining the development of technical and vocational education and training (TVET) in England in the second half of the 19th century, and comparing this with educational developments in this field in Ireland which was then a colony of the British Empire and, after 1801, part of the United Kingdom. It is intended that, through the analysis of contrasting cultures and politico-economic systems, the origins of the differential status of vocational and academic pursuits can be highlighted with a view to suggesting ways of enhancing the standing of vocationalism. There has never been a more urgent time for this form of historical and philosophical policy review since the subordinate status of vocational studies stands in the way of much-needed curriculum and pedagogical reform in educational systems around the world. In conclusion, a number of suggestions are made in relation to the need for a more holistic conception of TVET which pays due attention to the practical and psychomotor aspects of the field emphasised in current approaches to the revival of craft and manual skills and strategies. Future research in the field would do well to take into account emerging studies on craft and manual learning, in addition to attending to the 19th century origins of vocational courses and strategies.