bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of density on selected properties of furniture particleboards made of raspberry Rubus idaeus L. lignocellulosic particles
Authors: KOWALUK GRZEGORZ , WRONKA ANITA
Published: January 2020

Influence of density on selected properties of furniture particleboards made of raspberry Rubus idaeus L. lignocellulosic particles. The aim of the research was to determine the effect of density of three layer furniture particleboard, produced in laboratory conditions, in the three different densities: 500, 650 and 800 kg/m3, on their selected mechanical and physical properties. The fraction share of the particles used, as well as bulk density of the produced particles have been also measured. The tests have shown that with increasing density of the tested panels in the mentioned range, there is a significant improvement of mechanical parameters, but the thickness swelling of the panels unfavorably raises. The density increase causes also changes in density profile.
Machinability properties of particleboards made with addition of raspberry
stem chips (Rubus idaeus L.)
Authors: JANUSZEWSKI ADAM , SZYMANOWSKI KAROL
Published: January 2020

The article describes vulnerability to machinability particleboards with addition raspberry stem
chips (Rubus idaeus L.). Machinability can be analyzed with using of numerous machinability indicators. In this
article was assumed as machinability criterions, cutting resistance during milling and drilling regards to
percentage contribution of raspberry stem chips. The addition of alternative raw material didn’t deteriorated
machinability properties based on axial forces during drilling and cutting force during milling. However, at
higher amount of mentioned above raw material, increase of torque.
Modulus of elasticity as a criterion for strength grading of structural sawn
timber
Authors: KRZOSEK SŁAWOMIR , BURAWSKA-KUPNIEWSKA IZABELA , MAŃKOWSKI PIOTR , GRZEŚKIEWICZ MAREK , MAZUREK ANDRZEJ
Published: January 2020

Modulus of elasticity as a criterion for strength grading of structural sawn timber. The paper presents
an analysis that was performed on sawn timber originating from the Silesian Forest District in terms of
parameters related to the elastic properties of the material. As part of the research, static modulus of elasticity (in
accordance with EN 408: 2010 + A1: 2012) and dynamic modulus (using a portable device for machine strength
grading) were determined. Both elasticity modulus were correlated with the density of the material, and
compared with the database developed on the basis of previous research carried out at Faculty of Wood
Technology of WULS- SGGW, including the results of strength grading of sawn timber from five natural Polish
forest regions.
Selected properties of particleboard made of raspberry Rubus idaeus L. lignocellulosic particles
Authors: WRONKA ANITA , KOWALUK GRZEGORZ
Published: January 2020

Selected properties of particleboard made of raspberry Rubus idaeus L. lignocellulosic particles. The aim of the research was to confirm the possibility of using lignocellulosic particles of raspberry Rubus idaeus L. stalks as an alternative raw material in particleboard technology. Within the scope of work, it was to produce particleboards from raspberry lignocellulosic particles in laboratory conditions, and to investigate selected mechanical and physical properties of the produced boards. In addition to the aforementioned tests, the characterization of the lignocellulosic raw material used in the tests (density, bark share, fractional composition) was carried out. The tests have shown that it is possible to produce the furniture particleboards with use the lignocellulosic particles of raspberry Rubus idaeus L. To meet the requirements of the European standards for furniture panels, such particleboards must contain less than 50% of raspberry particles with density 650 kg/m3 (due to the bending strength criterion).
Application of the modified hybrid rule of mixture (ROHM) and Halpin–
Tsai equation for predicting mechanical properties of wood/hemp/polymer
composites
Authors: GOZDECKI CEZARY
Published: January 2020

Application of the modified hybrid rule of mixture (ROHM) and Halpin–Tsai equation for predicting
mechanical properties of wood/hemp/polymer composites. An object of investigations was hybrid wood-polymer
composite containing HDPE, hemp fibers and wood particles. The degree of addition of hemp and wood
particles ranged from 0 to 60% of filler. The usefulness of the mathematical models ROHM and Halpin-Tsai to
predict the Young's modulus of composites was tested. Additionally, experimental research was carried out. It
was found that the hemp content in the wood-polymer composite significantly influences the growth of the
composite module. The usefulness of mathematical models for predicting the Young's modulus of hybrid
composites was also confirmed.
Bonding of birch solid wood of sawmill surface roughness with use
of selected thermoplastic biopolymers
Authors: GUMOWSKA ANETA , KOWALUK GRZEGORZ
Published: January 2020

Bonding of birch solid wood of sawmill surface roughness with use of selected thermoplastic
biopolymers. The aim of the research was to determine the shear strength and in-wood damage share of the birch
lamellas of the surface shaped by rotary saw cutting and bonded with use of selected thermoplastic biopolymers,
like polylactide (PLA) and polycaprolactone (PCL), as well as with use of polypropylene (PP) as a reference
bonding material. The results show that the highest mechanical properties have been achieved in case of PLA
used as a binder.
Influence of gypsum share on selected properties of high-density wetformed
fiberboard
Authors: GOLIASZEWSKA ADA , KOWALUK GRZEGORZ
Published: January 2020

Influence of gypsum share on selected properties of high-density wet-formed fiberboard. The purpose
of the study was characterize the properties of high-density wet-formed fibreboards produced in laboratory
conditions, with a different proportion of gypsum binder. The scope of the research included the examination
of the manufactured boards in terms of their selected physical and mechanical properties, in order to determine
the influence of gypsum share on the properties of the boards. Studies have shown that the non-zero gypsum
share (without correlation between the proportion of gypsum and the tested feature) increased the contact angle
of the tested panels and increased thickness swelling, water absorbability and surface absorption.
Low noise with wood milling "Airface" constructions
Authors: WIELOCH GRZEGORZ
Published: January 2020

Low noise with wood milling"airface" constructions. The noise surrounds us everywhere, constituting a
disruptive component of our lives. In the wood industry it is more than in other industries due to the specificity of
wood processing carried out by high-speed tools. GUS data say that in 2012 as many as 53% of employees
worked in noise. Hence the necessity of constant search for new methods of noise reduction. One of them is the
use of a grooved surface patterned on the plumage of owls in the construction of milling heads. Their
characteristic construction makes the flight of owls almost silent. this is possible due to the special construction of
ailerons, which form the bearing surface of the wing. The "owl's wing" smoothes the air flow with a serrated edge
and scatters the noise. This allows for almost silent flight characteristics without adversely affecting
aerodynamics. Leuco has used this concept of learning from nature to make the milling tools even more
aerodynamic, and to get further noise reduction effects! Leuco has submitted a patent for this aerodynamic head
design called "airface".
Nano-scale hardness and elastic modulus of WC-Co composites and their
relationship to the tools life during particleboard milling
Authors: WILKOWSKI JACEK , BARLAK MAREK , WACHOWICZ JOANNA , BOTTGER ROMAN , WERNER ZBIGNIEW
Published: January 2020

Nano-scale hardness and elastic modulus of WC-Co composites and their relationship to the tool life
during particleboards milling. The paper summarizes the results of the technique of hardness and elastic
modulus determination using a load and displacement sensing indentation experiments. During the tests these
properties were measured in nano-scale for different types of WC-Co composites using the Anton Paar TriTec
Ultra Nano Hardness Tester (UNHT). In addition, durability examination of WC-Co tools during milling of
particleboard was carried out. In the final stage, the correlation of the studied properties with the lifetime of tools
was analyzed. The studies have revealed a relationship between micro-hardness and the total cutting length of
the WC-Co tools.
The effect of mechanical treatment of beech wood surface on quality
of surface finish
Authors: SLABEJOVÁ GABRIELA , ŠMIDRIAKOVÁ MÁRIA
Published: January 2020

The effect of mechanical treatment of beech wood surface on quality of surface finish. The paper deals
with the quality of three surface finishes intended into interior. Three types of coating materials were tested
(polyurethane, waterborne, wax). Each type of the surface finish was created on beech wood surface in three
various coating thicknesses. The coating thicknesses differed in number of coatings of the coating material. The
surface finishes were evaluated according to the impact resistance and the resistance to abrasion. The
polyurethane surface finish showed the lowest resistance to abrasion. If the film thickness was increasing, the
resistance to abrasion was decreasing. The greatest differences in the resistance to abrasion, depending on the
wood surface treatment, were found on the wax surface finish. In general, the waterborne surface finish showed
the best resistance to abrasion. Pressing the wood surface before finishing increased the impact resistance of all
three surface finishes. The damage of the surfaces was only of grade 2 (No cracks on the surface and the
intrusion was only slightly visible). The lowest impact resistance of the surface finishes was found on grinded
wood surface; the damage was graded as 4 (Visible large cracks at the intrusion). At the drop height of 400 mm,
the effect of the film thickness on the impact resistance was no longer present on all differently mechanically
treated surfaces.
The effect of phenol-formaldehyde adhesive modification with fire retardant on the properties of birch plywood
Authors: KAWALERCZYK JAKUB , DZIURKA DOROTA , MIRSKI RADOSŁAW , TROCIŃSKI ADRIAN , WIERUSZEWSKI MAREK
Published: January 2020

The effect of phenol-formaldehyde adhesive modification with fire retardant on the properties of birch plywood. The study investigated how the modification of phenol-formaldehyde adhesive with a mixture of potassium carbonate and urea affect the properties of plywood. Based on the investigations of the viscosity, gel time and solid content of PF resin mixture containing various amounts of modifiers with various compositions it was found that modification led to major decrease in viscosity, caused the elongation of gelling time and reduced the solid content. In all variants modification of the resin led to significant improvement in plywood flammability evaluated on the basis of parameters such as: weight loss, time of ignition and burned area. The addition of fire retardant to the resin caused a decrease of shear strength. Composition of the modifier had a significant effect on bonding quality, however all plywood samples retained good values exceeding 1 N/mm2 required by EN 314-2 (1993).
FEM SIMULATION OF MATERIAL STRAIN IN CORNER
OF FORMING TAP DURING COLD THREAD SHAPING
Authors: Czarnecki Henryk , Tubielewicz Krzysztof , Zaborski Andrzej , Tagowski Michał , Michalczuk Hubert
Published: January 2020

The paper presents a computer simulation of the influence of the corner construction of a forming tap on the
tool material strain. The obtained visual representation is presented of the course of thread groove formation
and the distribution of stresses and deformations in the workpiece and tool. The obtained operational stress
distributions allow the observation of places with maximum loads and thus exposed to accelerated wear.
This helps to select the most advantageous outline for the tool adapted to the specific application in the
technological process without the need for long-term operational tests.
Dangers and Attacks on Digital Information in the Public Safety Space
Authors: Grubicka Joanna , Rogowski Krzysztof , Diemientiew Grzegorz
Published: January 2020

The need for security is one of the most fundamental human needs. The scale of the threats posed by cybercrime to IT systems is large. It is mostly the result of the high vulnerability of IT systems to threats, the high risk of data theft, a very high occurrence of Internet frauds, the low efficiency of the systems protecting computers and networks, and an inadequately low level, as related to the existing threats, of security measures utilized by the users of IT systems. In this article, the authors discuss the underestimated problem of crime on the Internet and its nature in today’s reality.
Skok generacyjny Sił Zbrojnych Państwa Środka. Chiny przygotowują się do rozszerzenia sfery wpływów
Authors: Kałuziński Sławomir
Published: January 2020

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Technologiczne trendy rozwoju systemów teleinformatycznych NATO od 2019 roku
Authors: Frączek Mariusz , Wolaniuk Leszek
Published: January 2020

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TRiER: A Fast and Scalable Method for Mining Temporal Exception Rules
Authors: Amaral Thábata , Sousa Elaine P. M. de
Published: January 2020

Association rules are a common task to discover useful and comprehensive relationships among items. Our interest is to find exception rules, i.e. patterns that rarely occur but have critical consequences. Existing approaches for exception rules usually handle Itemset databases and are unfeasible for mining large ones due to high computational complexity. We thus propose TRiER (TempoRal Exception Ruler), an efficient method for mining temporal exception rules that not only discover unusual behaviors and their causative agents, but also identifies how long consequences take to appear. We performed an extensive experimental analysis in real data and results show TRiER is faster and more scalable than existing approaches while finding meaningful rules.
In-class social networks and academic performance: how good connections can improve grades
Authors: Gomes Jr. Luiz
Published: January 2020

Understanding how different variables affect student performance is an important requirement for improving educational practices. Since humans are highly social beings, social factors should play a significant role in the academic context. This paper analyzes the impact on academic performance of social indicators such as students friendship circle and in-class clustering. The analysis is based on data from six different classes of the topic Databases taken by students of computing-related majors. We assessed students’ friendship circle in terms of density (sociability) and also quality (grades) of their friends. The paper shows results with strong, statistically relevant relationships between the social factors and student performance. Among other results, the analysis indicates that (i) students with higher social capital tend to perform better, and (ii) students with friends with higher grades have better chances of recovering from a low exam grade.
Uma Análise Experimental do Impacto da Seleção de Atributos em Processos de Resolução de Entidades
Authors: Silva Levy de Souza , Canalle Gabrielle Karine , Salgado Ana Carolina , Lóscio Bernadette Farias , Moro Mirella M.
Published: January 2020

Resolução de Entidades (RE) é a tarefa de identificar instâncias duplicadas em conjuntos de dados por meio de um processo de várias etapas. Um ponto em comum entre suas etapas é a seleção de atributos. Apesar de existirem trabalhos de seleção de atributos na RE, há uma falta de estudos experimentais que analisem o impacto da seleção de atributos no processo completo. Esta análise é importante pois a eficácia da RE varia conforme os atributos adotados. Assim, este trabalho aborda tal lacuna por meio de experimentos em dados reais e sintéticos de vários domínios. Por fim, os resultados mostram que a seleção de atributos afeta a eficácia da RE em até 92%.
Refinamento Colaborativo de Dados na Web baseado em Social Coding
Authors: dos Santos Helton Douglas A. , Oliveira Marcelo Iury S. , Lóscio Bernadette Farias
Published: January 2020

A Web tem emergido como um importante canal de compartilhamento de informações, habilitando a publicação e o consumo de conjuntos de dados. Neste contexto, o refinamento de conjunto de dados é uma atividade relacionada à limpeza e enriquecimento de dados. Normalmente, o refinamento é realizado pelos publicadores de dados, embora os consumidores também limpem e aprimorem conjuntos de dados em suas atividades de consumo. Porém, o esforço do consumidor é perdido, já que na maioria das vezes o resultado do refinamento não é compartilhado com o publicador ou outros consumidores. Assim, este trabalho propõe uma estratégia baseada nos princípios de social coding para permitir o refinamento de conjuntos de dados publicados na Web de forma colaborativa.
Análise Integrada de Grafos de Proveniência Heterogêneos por meio de uma Abordagem PolyStore
Authors: Mendes Yan , Ströele Victor , de Oliveira Daniel , Ocaña Kary
Published: January 2020

Dados de proveniência de um workflow são capturados por quase todos os Sistemas de Gerência de Workflows (SGWfs) existentes. Cada SGWf utiliza um formato próprio para representar tais dados, e, comumente, captura e armazena os dados em diferentes granularidades na forma de um grafo. Isso permite cientistas analisarem e validarem resultados de um workflow específico. Entretanto, em cenários mais complexos em que o cientista necessita analisar grafos de proveniência oriundos de múltiplos SGWfs e workflows, um desafio surge. Para resolver esse problema, propomos uma abordagem chamada PolyFlow, que se baseia no conceito de Sistemas PolyStore, sendo capaz de integrar diversos bancos de dados de proveniência heterogêneos adotando um esquema ProvONE global sob demanda, i.e., sem necessidade de conversão prévia dos dados (que pode ser bastante custosa). Os cientistas podem, então, consultar múltiplos grafos de proveniência nesse banco de dados integrado via PolyFlow, explorando e vinculando a proveniência de workflows diferentes. De forma a analisar a viabilidade da abordagem PolyFlow, desenvolvemos mapeamentos para dois SGWf (Swift/T e Kepler) utilizando um experimento real de análise de dados filogenéticos.
A DBMS-Based Framework for Content-Based Retrieval and Analysis of Skin Ulcer Images in Medical Practice
Authors: Cazzolato Mirela T. , Rodrigues Lucas S. , Scabora Lucas C. , Zaboti Guilherme F. , Vasconcelos Guilherme Q. , Chino Daniel Y. T. , Jorge Ana E. S. , Cordeiro Robson L. F. , Traina-Jr Caetano , Traina Agma J. M.
Published: January 2020

Bedridden patients with skin lesions (ulcers) often do not have access to specialized clinic equipment. It is important to allow healthcare practitioners to use their smartphones to leverage information regarding the proper treatment to be carried. Existing applications require special equipment, such as heat sensors, or focus only on general information. To fulfill this gap, we propose ULEARn, a DBMS-based framework for the processing of ulcer images, providing tools to store and retrieve similar images of past cases. The proposed mobile application ULEARn-App allows healthcare practitioners to send a photo from a patient to ULEARn, and obtain a timely feedback that allows the improvement of procedures on therapeutic interventions. Experimental results of ULEARn and ULEARn-App using a real-world dataset showed that our tool can quickly respond to the required analysis and retrieval tasks, being up to 4.6 times faster than the specialist’ expected execution time.
A Parallel-based Map Matching Approach over Urban Place Records
Authors: Araújo Tiago Brasileiro , Pires Carlos Eduardo Santos , Mestre Demetrio Gomes , de Queiroz Andreza Raquel Monteiro , Santos Veruska Borges , da Nóbrega Thiago Pereira
Published: January 2020

In the Smart Cities scenario, to avoid the conflicting geospatial records between official and non-official sources, it is necessary to detect the inconsistencies regarding the geospatial data provided by them. To this end, the map matching task, i.e., the task of identifying correspondent features between two geospatial data sources, should be applied. For spatial Big Data, the map matching task is confronted with challenges related to volume and veracity of the data. In this sense, we propose a Spark-based map matching approach, called MATCH-UPS. To evaluate, real-world data sources of New York (USA) and Curitiba (Brazil) were applied. The results showed that MATCH-UPS improved the precision by 26% and reduced the execution time by one third.
Classificação de Estados Epilépticos em Sinais de EEG utilizando Detecção de Anomalias
Authors: Cabral Lucas , Barreto Guilherme A. , Monteiro José Maria
Published: January 2020

A epilepsia é um distúrbio neurológico caracterizado por uma perturbação elétrica anormal no cérebro, causando convulsões recorrentes. O exame mais utilizado no diagnóstico da epilepsia é o eletroencefalograma (EEG), onde a atividade elétrica cerebral de um paciente é mensurada e analisada visualmente. Contudo, identificar os padrões epilépticos no sinal de EEG através de inspeção visual é uma tarefa demorada e exaustiva para profissionais da área. Assim, o desenvolvimento de algoritmos que possam identificar esses padrões de forma automática, auxiliando o diagnóstico médico, tornou-se um importante desafio. Neste trabalho, propomos três modelos de classificação, baseados em detecção de anomalias. Os resultados obtidos demonstram alto desempenho e robustez a ruídos em relação resultados encontrados na literatura.
Explorando o uso de árvores B+ na Indexação de Dados por Similaridade
Authors: de Farias Jéssica N. B. , Barioni Maria Camila N. , Rezende Humberto L.
Published: January 2020

Este artigo apresenta um novo método de indexação métrico denominado GroupSim+ que, quando comparado com trabalhos correlatos, permite um maior estreitamento das regiões mínimas de poda. Essa característica do método contribui para a otimização de consultas por similaridade. Os resultados dos experimentos realizados com diferentes conjuntos de dados reais demonstram a eficácia da abordagem adotada no desenvolvimento do GroupSim+.
Industrial Paper: Large-scale Record Linkage of Web-based Place Entities
Authors: Cousseau Vinícius M. R. , Barbosa Luciano
Published: January 2020

Extracting data about entities from the Web has become commonplace in the industry and academia alike. Web-based entities, however, are inherently noisy and, as such, introduce several normalization issues which must be attended to in order to maintain a clean database. Record linkage, which refers to the detection of replicated datum from possibly multiple sources, is one of the most critical of those issues. This paper presents a practical approach for solving the record linkage problem in the places data domain at an industrial scale, displaying both a model which reaches a normalized Gini coefficient of 0.92, and an architecture that supports large-scale processing.
Short Paper: Descoberta automática de restrições de negação confiáveis
Authors: Pena Eduardo Henrique Monteiro , de Almeida Eduardo Cunha
Published: January 2020

Restrições de negação (RNs) expressam regras que identificam inconsistências em um banco de dados. Compô-las, no entanto, é uma tarefa onerosa. Nós propomos um método que descobre RNs com base em evidências extraídas das tuplas de um conjunto de dados. Nosso método descobre RNs confiáveis, mesmo que o conjunto de dados contenha erros. Nossos experimentos com dados reais mostram que é possível encontrar RNs que, com alta precisão e revocação, apontam para inconsistências dos dados de entrada.
Visualização dos dados abertos da Polícia Rodoviária Federal sobre acidentes nas rodovias brasileiras
Authors: de Mattos Victor G. P. , Vasconcelos Pedro H. V. , Parcianello Yussef , Kozievitch Nádia P. , Berardi Rita
Published: January 2020

Os acidentes de trânsito são uma das principais causas de óbito no Brasil e, somente nos últimos 10 anos, foram registrados mais de 1.6 milhões de acidentes e mais de 83 mil mortes. Este artigo propõe um protótipo de código aberto para a visualização dos dados abertos da Polícia Rodoviária Federal (PRF), mapeando os trechos historicamente mais perigosos nas rodovias, auxiliando na identificação de padrões. O intuito deste artigo é promover a conscientização dos usuários, visando a prevenção e diminuição no número de acidentes nas rodovias brasileiras que, hoje, além da perda humana, geram um prejuízo médio de R$ 10 bilhões anualmente.
Um Estudo Comparativo de Mecanismos de Privacidade Diferencial sobre um Dataset de Ocorrências do ZIKV no Brasil­
Authors: de Oliveira Daniel , Rodrigues Eduardo , Costa Serafim , Amora Paulo , Caldas Asley , Ocaña Kary , Horta Marco , de Filippis Ana Maria , Vidal Vânia , Machado Javam
Published: January 2020

Nos últimos anos, o Governo Brasileiro tem organizado uma série de iniciativas para informatizar o SUS, com o objetivo de melhorar sua eficiência. Uma dessas iniciativas é o GAL (Gerenciador de Ambiente Laboratorial). O GAL tem como objetivo proporcionar a gerência das rotinas laboratoriais e o acompanhamento das etapas para realização dos exames. Adicionalmente, o GAL permite a extração de dados, que podem ser usados por gestores nas diversas esferas. Entretanto, essa exportação de dados pode não ser confiável, e levar a sérios riscos de violação de privacidade, uma vez que exibe dados pessoais de indivíduos. Simplesmente mascarar os elementos de identificação (nome, CPF, etc.) ou disponibilizar apenas resultados agregados pode não proporcionar proteção suficiente. Nesse cenário, técnicas mais elaboradas de privacidade de dados, como a Privacidade Diferencial (PD), se fazem necessárias. Este artigo apresenta um estudo que compara a aplicação de diferentes mecanismos de PD sobre os dados extraídos do GAL. Em especial, utilizamos como estudo de caso os dados de exames de casos suspeitos do Vírus da Zika (ZIKV) no Brasil.
Uma Análise Experimental da Utilização de Diferentes Tecnologias de Armazenamento em um SGBD Relacional
Authors: Praciano Francisco D. B. S. , de Sousa Joaquim Filipe L. , Machado Javam C.
Published: January 2020

Os Sistemas Gerenciadores de Banco de Dados (SGBD) tradicionais são construídos com a premissa de que os dados estão armazenados em discos rígidos (HDD). Recentemente, surgiram várias alternativas aos HDDs, tais como as unidades de estado sólido (SSD), as memórias não voláteis (NVM) e as novas memórias principais (DRAM). As diferentes características desses dispositivos podem impactar no desempenho dos SGBDs. Neste trabalho, nos propomos a analisar um SGBD que armazena seus dados de quatro formas distintas, em HDD, SSD NVM, DRAM e de forma híbrida, utilizando os três dispositivos em conjunto. Para isso, usamos a carga de trabalho TPC-C e discutimos os motivos que dão origem aos resultados obtidos para cada tipo de armazenamento.
Unsupervised Rank Fusion for Diverse Image Metasearch
Authors: Figuerêdo José Solenir L. , Calumby Rodrigo Tripodi
Published: January 2020

For a given query and a set of images ranked lists retrieved from multiple search engines, the metasearch technique aims at combining these lists to build an unified ranking with improved relevance. Rank aggregation is an approach that has been widely used to support this task. This paper investigates the use of rank aggregation methods in the metasearch scenario for diverse image retrieval. Although metasearch systems are usually driven by the relevance of the final result, the impact on diversification has also been analyzed. The experimental findings suggest metasearch based on rank aggregation allows significant improvements, both in terms of relevance and diversity.
Análise ambiental macroscópica e a qualidade da água de nascentes na bacia do Rio São Domingos/SC, Brasil
Authors: Galvan Kelli Andreiza , Medeiros Raphael Corrêa , Martins Neto Rorai Pereira , Liberalesso Tiago , Golombieski Jaqueline Ineu , Zanella Renato
Published: January 2020

A análise ambiental de nascentes pode ser entendida como um método para a verificação da qualidade do ambiente no seu entorno, e possíveis impactos na qualidade das águas e na sua viabilidade para consumo humano. O presente estudo objetivou analisar nove nascentes na zona rural do município de Cunha Porã/SC, utilizadas para abastecimento humano. Para tanto, foi realizada avaliação ambiental macroscópica e foram analisados parâmetros físico-químicos e microbiológicos da qualidade da água: pH, nitrogênio total, fósforo total, oxigênio dissolvido, 2,4 – D, Glifosato, Atrazina, turbidez, temperatura, condutividade elétrica, coliformes totais e Escherichia coli. Foi verificado o não cumprimento da legislação vigente no que tange as Áreas de Preservação Permanente e possíveis impactos ambientais associados. Com relação à qualidade, as águas das nascentes se apresentaram como não potáveis, devido à presença de 2,4-D e Atrazina acima dos limites para potabilidade, bem como a positividade de Escherichia coli em 100% das amostras. Sendo assim, há potencial risco à saúde da população que faz uso da água dessas nascentes.
Análise do acúmulo de sedimentos por batimetria em lagoa facultativa no município de Campo Mourão/PR
Authors: Garcia Leandro Conti , Cardoso Flávia Aparecida Reitz , Kruger Fábio Rodrigo , Guerra Vitoria Sapia , Arantes Eudes José
Published: January 2020

As lagoas facultativas são utilizadas como pós-tratamento de efluentes ainda não estabilizados, e têm como mecanismo de ação uma associação entre diferentes microrganismos que se encontram em diferentes estrados do perfil. Quando não operadas de maneira eficiente, podem apresentar problemas como zonas mortas e zonas de curto-circuito. Desta forma, o objetivo deste estudo é analisar o acúmulo de sedimentos por meio de batimetria em uma lagoa facultativa no município de Campo Mourão. A coleta dos dados batimétricos foi realizada em um bote de alumínio, com o auxílio de uma baliza graduada acoplada a um disco de alumínio, e os pontos de coleta se distanciaram 5x5 m e 10x5 metros (linha X ponto). A partir dos dados obtidos foram elaborados diagramas mostrando as cotas de altura do lodo no leito e a representação tridimensional do acúmulo de sedimentos. Notou-se com estas representações que a região mais atingida pelo fenômeno é o início da lagoa, onde se encontra a margem curvada, a qual influencia diretamente no fluxo do efluente. Por meio desta análise, concluiu-se que a sedimentação irregular na lagoa facultativa está associada ao seu formato, diferente do projetado, e à velocidade de entrada do fluido na lagoa, que é insuficiente para conduzir as partículas em suspensão por todo o leito da lagoa.
Percepção dos profissionais de saúde quanto a gestão dos resíduos de serviço de saúde
Authors: Barros Paula Montenegro Gonçalves de Alencar , Melo Daniele Daniele de Castro Pessoa de , Lins Eduardo Antônio Maia , Silva Ronaldo Faustino da
Published: January 2020

A gestão de resíduos de serviço de saúde (RSS) constitui um grande desafio para o poder público, apesar dos avanços nos aspectos legislativos. O objetivo desta pesquisa foi avaliar a percepção dos profissionais de saúde, acerca da gestão de resíduos de serviço saúde, no Hospital Geral e Unidades Básicas de saúde em um município da Zona da Mata de Pernambuco. Para esta pesquisa foi realizada uma avaliação quantitativa e qualitativa, exploratória e descritiva. Trata-se de um estudo de caso com referência: 01 hospital geral (enfermeiros e auxiliares de enfermagem), 05 unidades básicas de saúde (enfermeiros, auxiliares de enfermagem, dentistas e ASB auxiliares de saúde bucal), com atendimento médico, odontológico e enfermagem. Os resultados buscaram mostrar a percepção dos profissionais envolvidos no serviço público de saúde em relação a gestão dos resíduos ,nas etapas de segregação, acondicionamento, armazenamento, coleta e transporte e destinação final. Os resultados desenham o desafio nas instituições de saúde quanto a educação permanente, com abordagem sobre PGRSS, segurança no trabalho e meio ambiente. Em relação ao Plano de Gerenciamento de Resíduos de Serviço de Saúde (PGRSS),concluiu-se que 47% dos funcionários desconhece a existência do documento elaborado pelo munícipio, contudo, 35 % disseram existir um Plano de Gerenciamento, embora este não tenha sido apresentado durante o desenvolvimento da pesquisa. No âmbito geral, o profissional de saúde, do serviço público do município da Zona da Mata de Pernambuco: Hospital Geral e Unidades Básicas de Saúde  têm conhecimento sobre gestão de resíduos de serviços de saúde de acordo com as exigências da RDC n° 222/2018 em torno de 54% do total.
Osteopathic Medical Care With and Without Osteopathic Manipulative Treatment in Patients With Chronic Low Back Pain: A Pain Registry–Based Study
Authors: Licciardone John C. , Gatchel Robert J.
Published: January 2020

Context

The OSTEOPATHIC Trial demonstrated substantial improvement in pain intensity, decreased need for rescue medication for pain, and greater likelihood of recovery in patients with chronic low back pain who received 6 osteopathic manipulative treatment (OMT) sessions over 3 months.

Objective

To assess osteopathic medical care and the effectiveness of OMT for chronic low back pain in a real-world setting without the constraints of a rigid research protocol.

Methods

An observational study of 445 adults with chronic low back pain who had an established osteopathic physician (ie, DO) or allopathic physician (ie, MD) was conducted within the PRECISION Pain Research Registry from April 2016 through February 2019. Primary outcome measures included a numerical rating scale for low back pain intensity, the Roland-Morris Disability Questionnaire for back-related functioning, and use of nonsteroidal anti-inflammatory drugs or opioids for low back pain.

Results

A total of 79, 48, and 318 patients, respectively, were treated by DOs who used OMT, DOs who did not use OMT, or MDs. Patients treated by DOs who used OMT reported significantly lesser low back pain intensity (mean numerical rating score, 5.6; 95% CI, 5.1-6.1 vs 6.1; 95% CI, 5.9-6.3; P=.04) and back-related disability (mean Roland-Morris Disability score, 12.4; 95% CI, 11.1-13.8 vs 14.4; 95% CI, 13.7-15.0; P=.009) than patients treated by MDs. Patients treated by DOs who used OMT also reported less frequent use of nonsteroidal anti-inflammatory drugs (multivariate odds ratio, 0.41; 95% CI, 0.24-0.70; P=.001) or opioids (multivariate odds ratio, 0.52; 95% CI, 0.28-0.98; P=.04). There were no significant differences in primary outcomes between DOs who did not use OMT and MDs.

Conclusion

This study of community-based patients in a pain research registry supports the effectiveness of OMT as an integral component of osteopathic medical care for chronic low back pain. Patients treated by DOs who did not use OMT did not experience better results than patients treated by MDs in any primary outcome measure. Further research is needed to more specifically compare the effects of OMT with other treatment effects that may be attributed to patient-DO interactions during medical encounters.
Evaluation of the Clarity and Completeness of Reporting in Orthopedic Clinical Practice Guidelines
Authors: Fishbeck Keith , Checketts Jake X. , Cooper Craig M. , Scott Jared T. , Vassar Matt
Published: January 2020

Background

Clinical practice guidelines (CPGs) can positively affect the quality of patient care offered by physicians because they decrease variability in clinical practice and may help reduce unnecessary testing, promoting a more responsible use of resources. Building on existing framework for reporting guideline development, including the work of the Enhancing the Quality and Transparency of Health Research Network, the Reporting Items for Practice Guidelines in Healthcare (RIGHT) Working Group created a 2016 checklist of 35 items considered essential for high-quality reporting of CPGs.

Objectives

To evaluate how many previously published CPGs in orthopedic surgery met the RIGHT criteria and assess how improvements can be made in future orthopedic CPGs based on any found deficiencies.

Methods

All 18 CPGs published before January 1, 2018, by the American Academy of Orthopedic Surgeons (AAOS) are publicly available on orthoguidelines.org. Two authors downloaded each file and both of those authors independently scored each CPG using piloted abstraction RIGHT checklist forms.

Results

Of the 35 RIGHT criteria outlined in 22 checklist items, 23 (65.7%) were met across all AAOS guidelines, 6 (17.1%) were not met by any of the AAOS guidelines, and 6 (17.2%) were met by some of the AAOS guidelines.

Conclusion

Overall, the AAOS guidelines addressed many important recommendations within the RIGHT checklist. Assessing adherence to the RIGHT checklist can help ensure that future guidelines are more effectively communicated, hopefully assisting end users in efficient implementation and increasing the level of evidence-based patient care.
Nutraceutical Augmentation Strategies for Depression: A Narrative Review
Authors: Gregory Lande R.
Published: January 2020

Context

Depression is one of the most commonly diagnosed psychiatric disorders, but antidepressant pharmacotherapy often fails to achieve remission, leading health care professionals and researchers to consider various augmentation strategies to improve clinical outcomes.

Objective

To assess the safety, tolerability, and efficacy of nutraceutical augmentation for depression.

Methods

Nutraceutical-focused systematic reviews and clinical practice guidelines identified the more commonly studied augmentation strategies for depression.

Results

S-adenosylmethionine, l-methylfolate, omega-3 fatty acids, and hydroxyvitamin D have sufficient scientific evidence to support their clinical consideration in the stepped care approach to the management of depression.

Conclusions

Clinical remission is the goal in the management of depression, and nutraceuticals may be part of an overall treatment approach to achieve that outcome.
Beyond the topics: how deep learning can improve the discriminability of probabilistic topic modelling
Authors: Al Moubayed Noura , McGough Stephen , Awwad Shiekh Hasan Bashar
Published: January 2020

The article presents a discriminative approach to complement the unsupervised probabilistic nature of topic modelling. The framework transforms the probabilities of the topics per document into class-dependent deep learning models that extract highly discriminatory features suitable for classification. The framework is then used for sentiment analysis with minimum feature engineering. The approach transforms the sentiment analysis problem from the word/document domain to the topics domain making it more robust to noise and incorporating complex contextual information that are not represented otherwise. A stacked denoising autoencoder (SDA) is then used to model the complex relationship among the topics per sentiment with minimum assumptions. To achieve this, a distinct topic model and SDA per sentiment polarity is built with an additional decision layer for classification. The framework is tested on a comprehensive collection of benchmark datasets that vary in sample size, class bias and classification task. A significant improvement to the state of the art is achieved without the need for a sentiment lexica or over-engineered features. A further analysis is carried out to explain the observed improvement in accuracy.
Airborne microbial biodiversity and seasonality in Northern and Southern Sweden
Authors: Karlsson Edvin , Johansson Anna-Mia , Ahlinder Jon , Lundkvist Moa J. , Singh Navinder J. , Brodin Tomas , Forsman Mats , Stenberg Per
Published: January 2020

Microorganisms are essential constituents of ecosystems. To improve our understanding of how various factors shape microbial diversity and composition in nature it is important to study how microorganisms vary in space and time. Factors shaping microbial communities in ground level air have been surveyed in a limited number of studies, indicating that geographic location, season and local climate influence the microbial communities. However, few have surveyed more than one location, at high latitude or continuously over more than a year. We surveyed the airborne microbial communities over two full consecutive years in Kiruna, in the Arctic boreal zone, and Ljungbyhed, in the Southern nemoral zone of Sweden, by using a unique collection of archived air filters. We mapped both geographic and seasonal differences in bacterial and fungal communities and evaluated environmental factors that may contribute to these differences and found that location, season and weather influence the airborne communities. Location had stronger influence on the bacterial community composition compared to season, while location and season had equal influence on the fungal community composition. However, the airborne bacterial and fungal diversity showed overall the same trend over the seasons, regardless of location, with a peak during the warmer parts of the year, except for the fungal seasonal trend in Ljungbyhed, which fluctuated more within season. Interestingly, the diversity and evenness of the airborne communities were generally lower in Ljungbyhed. In addition, both bacterial and fungal communities varied significantly within and between locations, where orders like Rhizobiales, Rhodospirillales and Agaricales dominated in Kiruna, whereas Bacillales, Clostridiales and Sordariales dominated in Ljungbyhed. These differences are a likely reflection of the landscape surrounding the sampling sites where the landscape in Ljungbyhed is more homogenous and predominantly characterized by artificial and agricultural surroundings. Our results further indicate that local landscape, as well as seasonal variation, shapes microbial communities in air.
The complete genome of Banana streak GF virus Yunnan isolate infecting Cavendish Musa AAA group in China
Authors: Li Wei-li , Yu Nai-tong , Wang Jian-hua , Li Jun-cheng , Liu Zhi-xin
Published: January 2020

Banana streak virus (BSV) belongs to the members of the genus Badnavirus, family Caulimoviridae. At present, BSV contains nine species in the International Committee on Taxonomy of Viruses (ICTV) classification report (2018b release). Previous study indicated that the viral particles of Banana streak virus Acuminata Yunnan (BSV-Acum) were purified from banana (Cavendish Musa AAA group) leaves in Yunnan Province, China, and its complete genome was obtained. To further determine whether this sample infecting with Banana streak GF virus (BSGFV), the polymerase chain reaction (PCR) cloning and complete genome analysis of the Banana streak GF virus Yunnan isolate (BSGFV-YN) isolate were carried out in this study. The result showed that BSGFV-YN infecting Cavendish Musa AAA group was co-infecting this sample. Its genome contains a total of 7,325 bp in length with 42% GC content. This complete genome sequence was deposited in GenBank under accession number MN296502. Sequence analysis showed that the complete genome of BSGFV-YN was 98.14% sequence similarity to BSGFV Goldfinger, while it was 49.10–57.09% to other BSV species. Two phylogenetic trees based on the complete genome and ORFIII polyprotein indicated that BSGFV-YN and other BSV species clustered into a group, while it was the highest homology with BSGFV Goldfinger. Although BSGFV-YN and BSGFV Goldfinger were highly homologous, their cultivating bananas are different. The former cultivating banana was from Cavendish Musa AAA group, while the latter cultivating banana was from Goldfinger Musa AAAB group. Compared with BSGFV Goldfinger, the genome of BSGFV-YN has an extra multiple repetitive sequences in the intergenetic region between ORFIII and ORFI, suggesting that this region might be related to host selection. In summary, a BSGFV-YN distant from BSV-Acum was identified from the same sample, and its complete genome sequence was determined and analyzed. The study extends the polymorphism of BSVs in China and provides scientific clue for the evolutionary relationship with host selection of badnaviruses.
Chest CT Dose Examination for Adult Patient in Abuja and Keffi, Hospitals in Nigerian
Authors: Rilwan U. , C. Onuchukwu G. , Umar I. , K. Sabiu L. , A. Abdullahi H.
Published: January 2020

The term "computed tomography" (CT) is often used to refer to X-ray CT, because it is the most commonly known form. But, many other types of CT exist, such as positron emission tomography (PET) and single-photon emission computed tomography (SPECT). This study was carried out in the north central part of Nigeria which includes Abuja and Keffi (Nasarawa State). This study has established local diagnostic reference levels (LDRLs). Dose report and scan parameters for chest was assessed during the period (January – July, 2016) of seven months at the three study centres (A, B and C in which two are located in Abuja and the other one (C) located in Keffi. Data on CT Dose index (CTDIw) and dose length product (DLP) available and achieved on CT scanner control console was recorded for a minimum of 10 average sized patients for each facility to established a local Diagnostic reference level (LDRLs) and radiation dose optimization Data was collected using a purposive sampling technique, from 131 adult patients weighing 70±3kg) from Philip brilliance, Toshiba Alexion and General Electric (GE) CT scanners for this study. Third quartile values of the estimated LDRLs for CTDIw and DLP was determined as 10.9 mGy and 432.8 mCy*cm. The mean CTDIw obtained are lower to the reported data from the European Commission of 30mGy. The mean DLP are comparably lower than all the reported value from the European commission of 650mGy/cm. Therefore, there is no any clinical implication and hence CT dose optimization is recommended.
Evaluation of Levels of Cadmium, Chromium and Lead in Bio Fertilizer from Various Feed Stocks and in Inorganic Fertilizers Used in Kenya
Authors: G. Kinaichu J. , G. Nyaga C. , Njogu P. , G. Gatebe E.
Published: January 2020

This study was conducted to compare the levels of selected heavy metals (Pb, Cr and Cd) in inorganic fertilizers and bio slurry from different feed stocks. Bio slurry samples from chicken droppings, cow dung and pig wastes were analyzed for levels of selected heavy metals. Inorganic fertilizers for analysis DAP, CAN, Urea and NPK were procured from local market in Juja town next to Jomo Kenyatta University of Agriculture and Technology (JKUAT). Bio slurry samples were collected from Githunguri Sub County in Kiambu County and from mini digesters set up at JKUAT. Concentrations of Cd, Cr, and Pb were determined by Flame Atomic Absorption Spectrophotometer (Shimadzu 6200). Inorganic fertilizers were found to contain detectable amounts of lead metal. DAP had the highest amount of Pb at 0.03 mg/l followed by CAN (0.02 mg/l) Urea and NPK had 0.01 mg/l each. Bio slurry samples contained lower amounts of lead which was below detectable limit in chicken litter and pig wastes. Inorganic fertilizers contained Cd with the highest levels being in the phosphorous containing fertilizers DAP (0.41 mg/l) and NPK (0.48 mg/l). All samples contained Cr with the highest in bio slurry samples being 0.09 mg/l in cow dung collected from Githunguri. CAN had the highest level of Cr (0.08 mg/l) among the inorganic fertilizers. Bio slurry is a better alternative fertilizer in reducing heavy metal uptake and their subsequent bioaccumulation.