bluuebunny/crossref_metadata_2025_split huggingface dataset:
A field intercomparison of three passive air samplers for gaseous mercury in ambient air
Authors: Naccarato Attilio , Tassone Antonella , Martino Maria , Moretti Sacha , Macagnano Antonella , Zampetti Emiliano , Papa Paolo , Avossa Joshua , Pirrone Nicola , Nerentorp Michelle , Munthe John , Wängberg Ingvar , Stupple Geoff W. , Mitchell Carl P. J. , Martin Adam R. , Steffen Alexandra , Babi Diana , Prestbo Eric M. , Sprovieri Francesca , Wania Frank 
Published: May 2021

Abstract. Passive air samplers (PASs), which provide time-averaged concentrations of
gaseous mercury over the timescale of weeks to months, are promising for
filling a gap in the monitoring of atmospheric mercury worldwide. Their
usefulness will depend on their ease of use and robustness under field
conditions, their availability and affordability, and most notably, their
ability to provide results of acceptable precision and accuracy. Here we
describe a comparative evaluation of three PASs with respect to their
ability to precisely and accurately record atmospheric background mercury
concentrations at sites in both southern Italy and southern Ontario, Canada. The study includes the CNR-PAS with gold nanoparticles as a sorbent, developed by the Italian National Research Council, the IVL-PAS using an activated carbon-coated disk, developed by the Swedish Environmental Research Institute, and the MerPAS® using a sulfur-impregnated activated carbon sorbent, developed at the University of Toronto and commercialized by Tekran. Detection limits are deduced from the variability in the amount of mercury quantified in more than 20 field blank
samples for each PAS. Analytical and sampling precision is quantified
through 22 triplicate deployments for each PAS, ranging in duration from 2 to 12 weeks. Accuracy and bias are assessed through comparison with
gaseous elemental mercury concentrations recorded by Tekran 2537 automated
mercury analyzers operating alongside the PASs at both locations. The
performance of the PASs was significantly better in Italy, with all of them
providing concentrations that are not significantly different from the
average concentrations of the Tekran 2537 instruments. In Canada, where
weather conditions were much harsher and more variable during the February
through April deployment period, there are differences amongst the PASs. At both sites, the MerPAS® is currently the most sensitive, precise, and accurate among the three PASs. A key reason for this is the larger size and the radial configuration of the
MerPAS®, which results in lower blank levels relative to the sequestered amounts of mercury when compared to the other two PASs, which rely on axial diffusion geometries. Since blank correction becomes relatively smaller with longer deployments, performance tends to be closer amongst the PASs during deployments of 8 and 12 weeks.
Carbon export and fate beneath a dynamic upwelled filament off the California coast
Authors: Bourne Hannah L. , Bishop James K. B. , Connors Elizabeth J. , Wood Todd J. 
Published: May 2021

Abstract. To understand the vertical variations in carbon fluxes in
biologically productive waters, four autonomous carbon flux explorers
(CFEs), ship-lowered CTD-interfaced particle-sensitive transmissometer and
scattering sensors, and surface-drogued sediment traps were deployed in a
filament of offshore flowing, recently upwelled water, during the June 2017
California Current Ecosystem – Long Term Ecological Research process study.
The Lagrangian CFEs operating at depths from 100–500 m yielded carbon flux
and its partitioning with size from 30 µm–1 cm at three intensive
study locations within the filament and in waters outside the filament. Size
analysis codes intended to enable long-term CFE operations independent of
ships are described. Different particle classes (anchovy pellets, copepod
pellets, and > 1000 µm aggregates) dominated the 100–150 m
fluxes during successive stages of the filament evolution as it progressed
offshore. Fluxes were very high at all locations in the filament; below
150 m, flux was invariant or increased with depth at the two locations
closer to the coast. Martin curve b factors (± denotes 95 %
confidence intervals) for total particulate carbon flux were +0.37 ± 0.59, +0.85 ± 0.31, −0.24 ± 0.68, and −0.45 ± 0.70 at the
three successively occupied locations within the plume, and in transitional
waters. Interestingly, the flux profiles for all particles
< 400 µm were a much closer fit to the canonical Martin
profile (b−0.86); however, most (typically > 90 %) of
the particle flux was carried by > 1000 µm sized aggregates
which increased with depth. Mechanisms to explain the factor of 3 flux
increase between 150 and 500 m at the mid-plume location are investigated.
A Bayesian approach to understanding the key factors influencing temporal variability in stream water quality – a case study in the Great Barrier Reef catchments
Authors: Liu Shuci , Ryu Dongryeol , Webb J. Angus , Lintern Anna , Guo Danlu , Waters David , Western Andrew W. 
Published: May 2021

Abstract. Stream water quality is highly variable both across space and time. Water quality monitoring programmes have collected a large amount of data that
provide a good basis for investigating the key drivers of spatial and temporal variability. Event-based water quality monitoring data in the Great Barrier Reef catchments in northern Australia provide an opportunity to further our understanding of water quality dynamics in subtropical and
tropical regions. This study investigated nine water quality constituents, including sediments, nutrients and salinity, with the aim of (1) identifying the influential environmental drivers of temporal variation in flow event concentrations and (2) developing a modelling framework
to predict the temporal variation in water quality at multiple sites simultaneously. This study used a hierarchical Bayesian model averaging
framework to explore the relationship between event concentration and catchment-scale environmental variables (e.g. runoff, rainfall and
groundcover conditions). Key factors affecting the temporal changes in water quality varied among constituent concentrations and between
catchments. Catchment rainfall and runoff affected in-stream particulate constituents, while catchment wetness and vegetation cover had more impact
on dissolved nutrient concentration and salinity. In addition, in large dry catchments, antecedent catchment soil moisture and vegetation had a
large influence on dissolved nutrients, which highlights the important effect of catchment hydrological connectivity on pollutant mobilisation and
delivery.
IMPLEMENASI BLOCK ACCESS PENGGUNA LAYANAN INTERNET DENGAN METODE FILTER RULE dan LAYER 7 PROTOCOL
Authors: Ali Machrus , Latifah Fitri 
Published: May 2021

PT MNC Televisi Network (Inews) merupakan stasiun tv swasta yang jaringannya menggunakan topologi tree. Penelitian yang telah dilakukan di PT MNC Televisi Network ini akan memaanfatkan fitur fitur yang ada pada router Mikrotik untuk mengatasi permasalahan keamanan jaringan di PT MNC Televisi Network. Dengan berkembangnya zaman akses internet yang disediakan oleh tempat kerja memunculkan masalah terkait penggunaan internet untuk kepentingan pribadi, seperti bermain game online pada saat bekerja atau bermain sosial media. Untuk menangani permasalahan ini peneliti memblokir trafic – tarfic dari situs2 yang tidak ada hubungan nya dengan kinerja perusahaan itu dengan menggunakan fitur yang ada pada router Mikrotik yaitu filter rule dan filter layer 7 protokol. Dan menambahkan hotspot untuk memonitoring akses wifi yang ada di perusahaan. Dengan di manfaatkannya beberapa fitur yang ada di router Mikrotik bisa membuat jam kerja di PT MNC Televisi Network lebih teratur dan membuat para karyawan tidak lagi bermain game online dan sosial media di jam kerja. Dengan tidak adanya karyawan bermain game online dan sosial media dapat memaksimalkan efektifitas waktu dalam bekerja
Kata kunci: Mikrotik,Filter layer 7 protokol,Filter rule
ANALISA PEMANFAATAN APLIKASI KEUANGAN ONLINE SEBAGAI MEDIA UNTUK MENGELOLA ATAU MEMANAJEMEN KEUANGAN
Authors: Fitriani Yuni 
Published: May 2021

Abstract:
The existence of information technology provides many benefits in many aspects of life, especially if we are able to maximize the use of such technology, one of which is the emergence of online financial management applications as a medium to manage or manage finance both personal and business finance. This online financial application makes it very easy to plan budgets and record expenses as well as to make financial statements. In this study, online financial applications include financial applications that help manage personal or individual finances, families as well as businesses such as online financial applications Bukukas, BukuWarung, Keuanganku and Money Lover. The research method used in this study is a semi descriptive quantitative method. Where the purpose in this research is to explain the utilization of online financial applications as a medium for managing and managing finance. Online financial applications such as BukuKas, BukuWarung, FInansialku and also Money Lover proved very useful in managing or managing personal finances or individuals, families and also UMKM well, namely in terms of managing income, expenses, investments, receivables and financial statements. In addition, it is more effective and efficient also in terms of financial management time by using the online financial application.
PENGARUH INTELLECTUAL CAPITAL, UKURAN PERUSAHAAN, CSR, DAN STRUKTUR KEPEMILIKAN TERHADAP KINERJA KEUANGAN PADA PERUSAHAAN MANUFAKTUR YANG TERDAFTAR DI BEI
Authors: Yudha Agam Mei 
Published: May 2021

This study aims to determine how much influence Intellectual Capital, Company Size, Corporate Social Responsibility (CSR), and Ownership Structure have on the Company's Financial Performance in Manufacturing Companies Listed on the IDX in 2015-2019 . This study uses secondary data. The method used in this research is pane l data regression analysis . This study used 34 manufacturing companies listed on the IDX from 2015 to 2019 which were used as samples. The sample technique in this study used purposive sampling, namely the determination of the sample using certain criteria. Data processing is done with tools Eviews. From this research, the following conclusions are obtained: (1) There is a positive and significant influence between Intellectual Capital and Financial Performance . (2) There is a positive and significant influence between Company Size on Financial Performance . (3) There is a negative and significant influence between Corporate Social Responsibility on Financial Performance . (4) There is a negative and significant influence between Ownership Structure on Financial Performance . (5) There is a positive and significant influence between Intellectual Capital , Company Size, Corporate Social Responsibility, and Ownership Structure simultaneously on financial performance.
Predicting Household's Mobile Banking Saving Behavior in Western Kenya: An Algorithmic Approach
Authors: Houenou Boris , Djogbenou Ecce F. 
Published: May 2021

ABSTRACT
Digitalization holds promises to unlock savings accumulation in Africa. This paper predicts the mobile savings, taking advantage of machine learning to examine a massive set of features known theoretically and empirically to affect household savings behavior. The algorithm fits a generalized regression model through a penalized maximum likelihood. The work anchors in economic theory on savings but differs from the method standpoint to elicit mobile banking savings take-up and savings accumulation. Data covered thirty-six villages in Western Kenya. Predictors clustered into livelihoods, assets inventory, formation and use of assets, income generation and its use, food composition, intake and nutrition, the housing quality and tenureship, water and sanitation, energy use, family structure, social status architecture, adverse shocks to agricultural production (crop and livestock loss events) and demographics. Data include 1600 households from six different communities and 7,700 quarterly observations from 2013 to 2015. Although the results point to shreds of evidence that corroborate previous findings, we highlight in this paper mobile banking's role in the savings accounts ownership and savings accumulation, as well as the effects of age and employment status. Mobile phone ownership is a strong and significant predictor of savings account ownership. However, the mobile phone is a vehicle to fluctuating savings balance and encourages dissaving. Moreover, being young and in the workforce increases the mobile banking savings take-up but also the dissaving behavior, compared to older age group. This work subsets features that could improve product or policy design towards a better financial inclusion of rural poor.
Validation through Documentation
Authors: Cáraves Jack , Salcedo Bamby 
Published: May 2021

This chapter explores how Iranian LGBTI refugees waiting in Turkey negotiate and respond to the tightening asylum policies of several nation-states. The recent asylum policies of the United States and Canada have stranded refugees in Turkey for an undetermined period of time, severely undermining the prospect for their resettlement. At the same time, Turkey’s emergency decree laws implemented in the wake of the coup attempt have expanded the securitization of asylum, putting refugees at greater risk of detention and deportation. Overwhelmed by the unsafety of their present and uncertainty of their future, refugees also respond to violence and uncertainty through humor and sarcasm, political and communal organizing, and alternative support networks.
As TIC no desenho curricular do Curso de Licenciatura em Artes Visuais do IFMA
Authors: Cordeiro Costa William , Silva Aguiar Mendes Barros Luciana 
Published: May 2021

As Tecnologias da Informação e Comunicação (TIC) encontram-se integradas de forma marcante na vida da sociedade contemporânea e seu impacto nos processos educacionais tem motivado vários estudos, tendo em vista a importância da reflexão sobre a relação entre as tecnologias, currículo e formação docente. Seguindo essa demanda, este estudo tem como objetivo principal investigar as tecnologias no Curso de Licenciatura em Artes Visuais do IFMA, visando identificar como é a abordagem de tal temática a partir do desenho curricular do Curso. Os resultados obtidos indicam que as tecnologias são abordadas em determinadas disciplinas como instrumentos de produção artística contemporânea e em outras como ferramentas de mediação pedagógica. A partir de uma metodologia qualitativa, realizou-se um mapeamento do projeto pedagógico do curso, à luz dos documentos e dispositivos legais que regem o Curso de Licenciatura em Artes Visuais no Brasil, fundamentando a discussão a partir das concepções de teóricos, como Lévy (1993), Pimentel (2011), entre outros.
Natureza poligenética de latossolo bruno em patamares extensos no meio oeste catarinense – planalto das araucárias.
Authors: Gaspari Mayara Cristina , Pontelli Marga Eliz , Rosa Biffi Vitor Hugo 
Published: May 2021

O presente trabalho tem como objetivo verificar a natureza dos materiais nos patamares extensos no meio oeste catarinense – Planalto das Araucárias. Para isto, seguiram-se etapas de campo, a fim de caracterizar e levantar as características macromorfológicas que compõem a cobertura superficial, bem como coleta dos materiais, seguidas de etapas laboratoriais, sendo elas: análise granulométrica, densidade do solo e das partículas para determinar a porosidade total, química de rotina, ataque sulfúrico, mineralogia da fração argila, razões Fed, Feo e Fet, química total e micromorfologia. A seção descrita apresentou 10,50 metros de material, dos quais 4 correspondem ao solum, 1 à aloterita e 5 à isoalterita, totalizando 10 horizontes pedológicos. De forma geral, as análises laboratoriais apontam avançada evolução pedogenética do material, com características correspondentes a LATOSSOLO BRUNO Distrófico, caráter alítico, além de minerais neoformados, por processos de mono e bissialitização concomitantes com minerais formados em condições distintas das atuais, permitindo uma primeira interpretação de solo poligenético. Alterações ambientais de uma fase mais seca e fria para uma fase úmida modificaram a estrutura do horizonte Bw, causando desmantelamento dos peds em estrutura de blocos para granular, mas não alterou o processo pedogeoquímico.
Influência dos parâmetros físico-hídricos do solo na conformação das vertentes na formação Santa Maria (membro alemoa) no bairro Camobi e distrito de Pains, Santa Maria - RS
Authors: Facco Ronaldo , Werlang Mauro Kumpfer 
Published: May 2021

As vertentes juntamente com os interflúvios e os talvegues constituem os componentes fundamentais das unidades de relevo. A problemática da presente pesquisa está assentada na observação da ocorrência de uma relativa padronização na forma do perfil das vertentes situadas na Formação Santa Maria (Membro Alemoa), na Depressão Periférica Sul-rio-grandense, município de Santa Maria, no bairro Camobi e distrito de Pains. O objetivo da pesquisa é compreender a influência que os parâmetros físico-hídricos do solo (cobertura pedológica) exercem na conformação das vertentes da Formação Santa Maria (Membro Alemoa), na Depressão Periférica Sul-rio-grandense, no município de Santa Maria, região central do estado do Rio Grande do Sul. Para realização da pesquisa, adotou-se o método hipotético-dedutivo, segundo (Lakatos, Marconi, 2001). De acordo com os objetivos do trabalho, adotou-se também como base teórico-metodológica a proposta de Boulet (1978), que trata da análise estrutural da cobertura pedológica. Conclui-se que as propriedades físico-hídricas do solo influenciam na conformação do perfil convexo-côncavo das vertentes pesquisadas.
Capital social no município de Inhambane em Moçambique e sua relação com a agricultura e o turismo
Authors: Zua Nunes Alice Alfredo , Artur Luís João 
Published: May 2021

O capital social pode ser visto de duas formas: redes densas ou fechadas capazes de conectar e gerar mais facilmente vínculos de confiança e de solidariedade mas também como redes abertas e largas que podem servir de pontes para o alcance de objectivos comuns. O elevado estoque de capital social pode aumentar a reciprocidade e encorajar a confiança social e promover acções para o desenvolvimento local de uma região. Visto deste modo, o presente artigo teve como objectivo a análise do capital social no Município de Inhambane (MI) e a sua relação com a agricultura e o turismo que são praticados neste local. Para o alcance deste objectivo fez-se o cálculo do índice do capital social do MI usando sete indicadores principais. Em seguida aplicou-se a regressão logistica para se perceber se existia alguma relação entre a participação em associação ou rede com as caracteristicas demográficas como sexo, idade,bairro, nível de escolaridade. E como resultado, conclui-se que o capital social não tem fortalecido os laços de amizade, confiança e solidariedade dentro das associações agrícolas, pois as associações funcionam de maneira deficiente e como resultado, a participação dos membros não é efectiva. Notou-se também que não existe uma relação entre a agricultura e o turismo. No entanto, o fortalecimento destes indicadores, pode aumentar o capital social.
A representação da pobreza urbana no livro didático de geografia do ensino médio
Authors: Moura Correia Débora Luzia , Almeida Jacqueline Praxedes 
Published: May 2021

O presente Trabalho é um estudo voltado para a temática da pauperização que acomete os habitantes do meio urbano. Sendo a pobreza e a escola muitas vezes relacionadas pelas condições socioeconômicas dos próprios estudantes, se faz necessário que a temática seja tratada em sala de aula. Para tanto, o Livro Didático é um importante recurso, pois apresenta os conteúdos de maneira sistematizada para professores e alunos. Diante do exposto, o presente o artigo tem por objetivo apresentar a análise feita em duas coleções de Livros Didáticos de Geografia do Ensino Médio aprovados no Programa Nacional do Livro Didático (PNLD) de 2018, buscando identificar a representação da pobreza nos mesmos. A pesquisa foi, de cunho qualitativo e desenvolvida a partir da revisão bibliográfica e análise de Livros Didáticos, buscando identificar a representação da pobreza nos mesmos. A investigação revelou que a temática, apesar de presente nas coleções, não é encontrada em todos os volumes. Também foi possível verificar que a Pobreza é tratada nos livros de formas variadas, sendo utilizado para tanto, imagens, textos, charges e gráficos. A abordagem do tema é feita em grande parte sob uma perspectiva crítica, mostrando causas e consequências da pobreza urbana, além de apresentar situações que estimulam os alunos a refletirem sobre a temática. No entanto, a ênfase dada ao tema nas coleções é bem distinta.
BATOPERF, A Performance Prediction Software and Its Influence on Modern Yacht Design
Authors: Fargeas Sylvain , Kouyoumdjian Juan 
Published: May 2021

BATOPERF considers the equilibrium of the forces acting on a boat when sailing in the thrust and in the canoe body and appendages side force directions. A transverse plane force moment equilibrium is also considered solving for three principal unknowns: boat speed, leeway and heel.
In this paper an overall description will be given of the fundamental solving principles of BA TOPERF and its force models.
Finally a comparison will be made against the IMS VPP in the context of the importance of accurately predicting boat speeds when designing an IMS boat.
Closure of meningomyelocele defects using various types of keystone-design perforator island flaps
Authors: Putri Nandita Melati , Tunjung Narottama , Sadikin Patricia Marcellina 
Published: May 2021

Background Various methods have been described to close large meningomyelocele defects, but no technique has been proven superior to others. This study presents cases of meningomyelocele defect closure with a keystone-design perforator island flap.
Methods A retrospective study was performed on 14 patients with meningomyelocele defects closed using various types of keystone flaps.
Results The median age of the patients at surgery was 10.5 days (range, 1–369 days) and the average defect size was 22.5 cm2 (range, 7.1–55.0 cm2). The average operative time for defect closure was 89.6 minutes (range, 45–120 minutes). Type IV bilateral keystone flaps were used for four defects, type IV unilateral flaps for six defects, type IIA flaps for two defects, and type III flaps for two defects.
Conclusions All the defects healed completely with no major complications. The keystone-design perforator island flap is a reliable, easy, and fast technique to close large meningomyelocele defects.