bluuebunny/crossref_metadata_2025 huggingface dataset:
Investigation of γ ray shielding, structural and dissolution rate studies of alkali based bismuth borate glass systems with MoO3 added
Authors: Dogra Mridula , Singh K.J. , Kaur Kulwinder
Published: November 2018

Bi2O3–B2O3–Li2O–K2O–MoO3 glass system has been synthesized using melt-quenching technique. γ ray shielding properties have been evaluated in terms of mass attenuation coefficient at photon energies 356, 662 and 1173 keV. These shielding parameters are also compared with standard nuclear radiation shielding material “barite concrete” at the same photon energies. Most of our prepared samples show better γ ray shielding properties as compared to barite concrete at the same photon energies. Density, molar volume, XRD, FTIR and Raman studies have been employed to study the structural properties of the prepared glass system. Different structural groups such as [BO3], [BO4], [MoO4] and [MoO6] have been detected in the amorphous network. The presence of non-bridging oxygens, bridging oxygens and change of coordination number has been discussed. The optical absorption spectra are recorded in the wavelength range 200–800 nm and optical band gap is calculated which has shown strong dependence on Bi2O3/B2O3 ratio. The samples have also been tested for their durability by measuring dissolution rate properties using distilled water at 90°C. It has been concluded that increase in the content of Bi2O3 in the composition improves durability and γ ray shielding properties of the samples.
Wireless and mobile optical chemical sensors and biosensors
Authors: Kassal Petar , Horak Ema , Sigurnjak Marija , Steinberg Matthew D. , Steinberg Ivana Murković
Published: November 2018

This review explores the current state-of-the-art wireless and mobile optical chemical sensors and biosensors. The review is organised into three sections, each of which investigates a major class of wireless and/or mobile optical chemical sensor: (i) optical sensors integrated with a radio transmitter/transceiver, (ii) wearable optical sensors, and (iii) smartphone camera-based sensors. In each section, the specific challenges and trade-offs surrounding the (bio)chemical sensing mechanism and material architecture, miniaturisation, integration, power requirements, readout, and sensitivity are explored with detailed examples of sensor systems from the literature. The analysis of 77 original research articles published between 2007 and 2017 reveals that healthcare and medicine, environmental monitoring, food quality, and sport and fitness are the target markets for wireless and mobile optical chemical sensor systems. In particular, the current trend for personal fitness tracking is driving research into novel colourimetric wearable sensors with smartphone readout. We conclude that despite the challenges, mobile and wearable optical chemical sensor systems are set to play a major role in the sensor Internet of Things.
The dynamics of a delayed deterministic and stochastic epidemic SIR models with a saturated incidence rate
Authors: N’zi Modeste , Yattara Ilimidi
Published: November 2018

We treat a delayed SIR (susceptible, infected, recovered) epidemic model with a saturated incidence rate and its perturbation through the contact rate using a white noise.
We start with a deterministic model and then add a perturbation on the contact rate using a white noise to obtain a stochastic model.
We prove the existence and uniqueness of the global positive solution for both deterministic and stochastic delayed differential equations.
Under suitable conditions on the parameters, we study the global asymptotic stability of the disease-free equilibrium of the deterministic model and the almost sure stability of the disease-free equilibrium of the stochastic model.
A novel method to accurately calculate statistical significance of local similarity analysis for high-throughput time series
Authors: Zhang Fang , Shan Ang , Luan Yihui
Published: November 2018

In recent years, a large number of time series microbial community data has been produced in molecular biological studies, especially in metagenomics. Among the statistical methods for time series, local similarity analysis is used in a wide range of environments to capture potential local and time-shifted associations that cannot be distinguished by traditional correlation analysis. Initially, the permutation test is popularly applied to obtain the statistical significance of local similarity analysis. More recently, a theoretical method has also been developed to achieve this aim. However, all these methods require the assumption that the time series are independent and identically distributed. In this paper, we propose a new approach based on moving block bootstrap to approximate the statistical significance of local similarity scores for dependent time series. Simulations show that our method can control the type I error rate reasonably, while theoretical approximation and the permutation test perform less well. Finally, our method is applied to human and marine microbial community datasets, indicating that it can identify potential relationship among operational taxonomic units (OTUs) and significantly decrease the rate of false positives.
Post-transcriptional regulation of miRNA-15a and miRNA-15b on VEGFR gene and deer antler cell proliferation
Authors: Liu Mingxiao , Han Xiangyu , Cui Dongming , Yan Yuduo , Li Lu , Hu Wei
Published: November 2018

Background

Deer antler is the only regenerative organ in mammals, the regeneration of antler is not only the regeneration of bone tissue, but also accompanied by the regeneration of nerves, blood vessels and so on. The purpose of the current study was to explore the effect of miRNA-15a and miRNA-15b on the regulation of sika deer vascular endothelial growth factor receptor (VEGFR) during rapid antler growth.

Materials and methods

The VEGFR 3′-UTR was analyzed by bioinformatics software to identify the highly matched miRNAs. After transfected with miRNA mimics, the expression of selected miRNAs were measured by RT-qPCR and the relative expression level of VEGFR protein was detected by Western Blot. Dual-luciferase activity assay was used to determine the target relationship between VEGFR and miRNAs. The cartilage cell proliferation and telomerase activity were measured by MTT kit and TRAP assay, respectively.

Results

The VEGFR 3′-UTR contains a binding site for miRNA-15a and miRNA-15b. Over-expression of miRNA-15a and miRNA-15b, which significantly reduced the expression level of VEGFR protein, inhibited the proliferation of cartilage cells, and decreased the telomerase activity of cartilage cells in vitro.

Conclusion

miRNA-15a and miRNA-15b represent novel regulatory factors of VEGFR expression in deer antler.
Synthesis of CdSe/ZnS@HPU-2 composites for highly sensitive and multicolor florescence response to Fe3+
Authors: Li Huijun , He Yaling , Li Qingqing , Xu Zhouqing , Wang Yan , Wang Yuan
Published: November 2018

A composite material based dual-emission probe for Fe3+ was prepared by the hybridization of a three-dimensional framework with CdSe/ZnS quantum dots (QDs)-doped silica nanoparticles. The obtained probe showed characteristic fluorescence emissions of CdSe/ZnS QDs (red) and Cd-metal-organic framework (MOF, blue) under a single exciation wavelength. Upon the detection of Fe3+, only the fluorescence of Cd-MOF was quenched, whereas the red fluorescence of CdSe/ZnS QDs particles was mostly reserved. Consequently, the variation of the two fluorescence intensity ratios displays a continuous color change from blue to red upon exposure to different amounts of Fe3+ ions, which can be easily observed under a UV lamp.
Synthesis and Characterization of BaAl2O4 Catalyst and its Photocatalytic Activity Towards Degradation of Methylene Blue Dye
Authors: Wang Shifa , Gao Huajing , Fang Leiming , Wei Yong , Li Yanwu , Lei Li
Published: November 2018

Hexagonal BaAl2O4 catalyst has been prepared using a gamma-ray irradiation assisted polyacrylamide gel method. The catalysts synthesized at different calcining temperatures were analyzed to insight into their effects on the structural, crystalline, surface morphology, color, optical, fluorescence and photocatalytic properties of the hexagonal BaAl2O4 catalyst. Increasing the calcining temperature has obvious influences on the crystallinity, color, optical properties and the formation of the hexagonal BaAl2O4 catalyst. The optical energy gap (Eg) value of the hexagonal BaAl2O4 catalyst increases with the increasing of calcining temperature. TEM image of the pure hexagonal BaAl2O4 catalyst shows a morphology of flake structure and aggregation. Raman spectroscopy of the pure hexagonal BaAl2O4 catalyst exhibits four luminescent background peaks at 400, 415, 428 and 445 nm mainly due to the oxygen vacancies (VO), Ba vacancies (VBa) and some color centers exists in the BaAl2O4 sample. A comparison of photocatalytic activity among samples for degradation of methylene blue (MB) dye indicates that the pure hexagonal BaAl2O4 catalyst exhibits highest photocatalytic activity under the irradiation of both visible and ultraviolet light. Based on the fluorescence experiment, electrochemical and active species tests, the high photocatalytic activity of the pure hexagonal BaAl2O4 catalyst to be related to hole (h+) and hydroxyl radical (⋅OH) and also to the defects in the sample.
Evaluating the Rutting Resistance of Wearing Course Mixtures with Different Fine Aggregate Sources Using the Indirect Tensile Strength Test
Authors: Tran Nhat Thanh , Takahashi Osamu
Published: November 2018

The aim of this experimental study was to determine if the indirect tensile (IDT) strength test results for Marshall cylindrical specimens are associated with a laboratory evaluation parameter for the rutting resistance of wearing course hot mix asphalt (HMA) mixtures. We investigated a wide range of HMA mixtures with various aggregate gradations; the specimens consisted of seven Vietnamese and six Indonesian HMA mixtures with a 12.5-mm nominal maximum particle size. Three different fine aggregates from two sources (natural sand and manufactured screening) were used to fabricate these HMA specimens. Wheel tracking tests were also conducted to verify the validity of the IDT strength test as a potential indicator of rutting resistance in HMA mixtures. The experimental results showed that the IDT strength test using Marshall cylindrical specimens has potential applications for evaluating rutting resistance, regardless of aggregate source. The study also explored the effects of fine aggregate on the resistance of HMA mixtures to permanent deformation. Overall, fine aggregate significantly influenced the rutting resistance of mixtures when the aggregate gradations were controlled to achieve the same gradations. In contrast, fine aggregates with different gradations were not strongly associated with the rutting resistance of HMA mixtures.
The State, Class Struggle, and Capitalist Development in Indonesia and South Korea: A Marxist View
Authors: Ridha Muhammad
Published: November 2018

This paper aims to understand why similar efforts of state intervention can generate different economic outcomes. It argues that the different economic outcomes of state intervention can be traced back to the different processes of class struggle. Mobilizing Marxist view, it suggests that the state role in the economy should be understood as inseparable from capitalist development. That is, economic development is the terrain for class struggle between capital and labor. Although the contradictory relation between capital and labor is universal and global in capitalism, the form of contradiction will always be different across societies. That is the case because the form of class struggle depends on the specific development of the configuration of class power that has developed historically in each country alongside with its international process due to the expansive nature of capitalism itself.
Marginalizing Poverty with Car-Dependent Design: The Story of Two Expulsions
Authors: Cleveland Tristan
Published: November 2018

In the twentieth century in Nova Scotia, at least two racialized communities were forcibly expelled from their land: Black Africville residents in Halifax and the Membertou Mi’kmaw First Nation in Sydney. Differences in the long-term outcomes of the two expulsions, however, reveal critical factors in how urban design can support or frustrate poverty alleviation. While the Membertou First Nation was relocated as a whole to a centralized context where they were geographically positioned to stage an economic transformation, Africville residents were more widely dispersed, many to areas with less access to jobs and other economic opportunities.This article analyzes the urban design elements in Halifax that create barriers to prosperity for the city’s historically Black communities and low-income residents. These factors include housing displacement, the suburbanization of poverty, and a lack of access to transit and other destinations within walking distance of homes. This article proposes three policy options to address these barriers and ensure that the city offers opportunity to all residents.
Ida B. Wells on Criminal Justice
Authors: Wells Ida B.
Published: November 2018

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Deflective Whiteness: White Rhetoric and Racial Fabrication
Authors: Noel Hannah
Published: November 2018

This article focuses on the ways that minority identity politics are co-opted, decontextualized, and used by those invested in white supremacy and white identity politics to further their own racial project in seemingly benign, everyday cross-media discourse. This pattern of discourse, which the author terms “deflective whiteness,” deflects the fear, discomfort, and aggression that those invested in white supremacy feel when confronted with systemic racism and inequity. This fear and discomfort are transposed onto individuals linked with identity-based social movements, who are then faulted for causing a social disruption. The vantage point of deflective whiteness deliberately avoids recognizing the mission or goals of the social movement, and the resulting decontextualized chastisement is categorized as “common sense.” In the process, the original protest against white supremacy and its effects is ignored and overshadowed by a colorblind critique of those invested in identity politics as weak, unpatriotic, and naïve.
Stanton Heights: Intersections of Art and Science in an Era of Mass Incarceration
Authors: Conti Norman
Published: November 2018

I have the tremendous privilege of working among a collection of artists, activists, incarcerated men, police officers, professors, students, and writers. Some of us straddle multiple categories, but we all come together as fictive kin and chosen family. Without realizing it, we have always been tied together; our connective thread stretches back to American slavery, if not further, and can most easily be observed in the ongoing calamity of mass incarceration. These links and overlaps provide a framework for bearing witness to white supremacy as it plays out through the US justice system.Finding a true starting point for these relationships is unlikely, so I began mapping the network within the Inside-Out Prison Exchange Program, or more specifically the local think tank that emerged from that larger program. However, this cartography quickly evolved into a story of people who are bound for powerful interactions with law enforcement, the legal system, corrections, one another, and themselves. Whether creating a strange and terrible saga or a series of smaller projects, our goal is always to share these experiences in a manner that capitalizes on the academic depth and breadth of our ranks while also conveying that this is not simply the work that we do but rather engagement with one of the most severe social problems this nation has produced. As such, it is an experience that makes it difficult for participants to remain complicit with malignant authority.This work continually changes us, and by telling our stories, I hope to push readers to consider the wider totality of lived experiences included within them. Moreover, our group is working to build solutions that address the human suffering we have observed. This article offers a perspective, comprising many different perspectives, that is the foundation for a program designed to address the disconnection between the public, the police, and men in prison.
The ENRICH Project: Blurring the Borders between Community and the Ivory Tower
Authors: Waldron Ingrid R. G.
Published: November 2018

In the spring of 2012, the author agreed to direct a project on environmental racism in Nova Scotia after meeting with Dave Ron, a social and environmental activist who had been involved for some time in the Save Lincolnville Campaign, a community-led initiative for the removal of the landfill near the African Nova Scotian community of Lincolnville. Thirsty for a new challenge that had the potential to effect real change in racially marginalized communities, she understood that the significance of the project lay in its uniqueness: few, if any, studies exist that examine environmental racism in both the Indigenous and Black communities in Canada. Given the dearth of research on environmental racism in Nova Scotia, particularly from the perspectives of these two communities, the project serves as a kind of case study for telling a particular kind of story situated in the Nova Scotian context and, in many cases, in the larger Canadian context.That project, which was later titled the Environmental Noxiousness, Racial Inequities and Community Health (ENRICH) Project, is a community-based academic study of the socioeconomic and health effects of environmental racism in African Nova Scotian and Mi’kmaw communities. From its inception, the mission of the ENRICH Project has been to employ an interdisciplinary, multi-methodological approach that bridges the academy and community to support ongoing and new efforts by Mi’kmaw and African Nova Scotian peoples to address the social, economic, political, and health effects of disproportionate pollution in their communities.
Tratamiento de la osteomielitis asociada a úlceras alrededor de la pelvis. [Treatment of pressure ulcer-related pelvic osteomyelitis].
Authors: Carabelli Guido , Cafruni Virginia María , Barla Jorge , Taype Danilo Eric , Sancineto Carlos Federico
Published: November 2018

Introducción: El tratamiento de la osteomielitis crónica asociada a úlceras alrededor de la pelvis es complejo y multidisciplinario. Un tratamiento antibiótico, dirigido a más de un microorganismo, sumado a la cirugía permitiría disminuir la recurrencia de la infección. El objetivo de este estudio fue analizar los resultados en pacientes con osteomielitis crónica asociada a úlceras por presión, con gran defecto de cobertura alrededor de la pelvis, tratados con desbridamiento del lecho y un colgajo para el defecto de cobertura.Materiales y Métodos: Se realizó un estudio descriptivo, retrospectivo, basado en los datos de las historias clínicas de pacientes que requirieron cobertura quirúrgica de úlceras por presión, entre octubre de 2010 y febrero de 2017. Los pacientes fueron tratados con un procedimiento en dos tiempos quirúrgicos: desbridamiento y luego colgajo de cobertura del defecto remanente.Resultados: Se trataron 27 úlceras (9 sacras, 13 isquiáticas y 5 trocantéricas) en 15 pacientes (edad promedio 44. 9 años [rango 22-81]). Tres úlceras desarrollaron un solo germen, en el resto, los cultivos fueron polimicrobianos. Se administraron antibióticos intravenosos durante un mínimo de 4-6 semanas. Los valores iniciales de eritrosedimentación y proteína C reactiva ultrasensible fueron 72 mm/h y 55 mg/l, respectivamente, y disminuyeron a 49 mm/h y 20 mg/l, respectivamente, a los 3 meses.Conclusiones: Nuestro protocolo acorta los tiempos de tratamiento, ya que no se espera a terminar la antibioticoterapia para realizar el colgajo. Consideramos que la cobertura inmediata del defecto de partes blandas permite controlar el acceso de nuevos microorganismos a la región afectada. Así hemos obtenido buenos resultados con una baja tasa de recidiva comparada con la de otras series.
Artrodesis intersomática lateral de columna lumbar. Técnica quirúrgica y conceptos actuales.[Lateral lumbar interbody fusion. Surgical technique and current concepts].
Authors: Pereira Duarte Matías , Petracchi Matías Gustavo , Mereles Maximiliano Edgardo , Gruenberg Marcelo , Solá Carlos Alberto , Girardi Federico Pablo
Published: November 2018

El abordaje lateral mínimamente invasivo de columna lumbar para la artrodesis intersomática es una técnica relativamente nueva y ha conseguido resultados prometedores en los pacientes con diferentes patologías de la columna lumbar. Es una técnica segura que proporciona un adecuado soporte estructural entre los platillos vertebrales, puede corregir la deformidad en los planos coronal y sagital, y ejercer una descompresión indirecta del canal raquídeo respetando los elementos posteriores. La evidencia sobre esta técnica ha ido creciendo y diversificándose en los últimos años, se han comunicado nuevas indicaciones, y resultados a mediano y largo plazo.El propósito de este trabajo es detallar el procedimiento quirúrgico paso a paso, con sus variantes tal como lo realizamos en nuestros Centros, y puntualizar los conceptos actuales basados en una revisión bibliográfica.
Osteomielitis crónica recurrente multifocal. Reporte de tres casos y revisión de la literatura. [Multifocal recurrent chronic osteomyelitis: Report of three cases and review of the literature.]
Authors: Suárez Zarrate Jessica Andrea , Rodriguez Serna Sebastián , Bilbao Rodas Madeline Rossana , Bonilla Ortiz Camilo Hernan , Pachon Parrado Claudia Marcela , Cardona Jose Roberto
Published: November 2018

La osteomielitis crónica recurrente multifocal es un trastorno inflamatorio estéril en las extremidades. Afecta principalmente a niños simulando una osteomielitis infecciosa. Puede estar asociada a trastornos inflamatorios cutáneos y del tracto intestinal. Los niveles de reactantes de fase aguda están normales o levemente altos. Las radiografías muestran lesiones osteolíticas rodeadas por esclerosis, pero pueden ser normales al inicio de la enfermedad. Identificar las características propias de la enfermedad y descartar una etiología infecciosa permiten establecer un diagnóstico oportuno y ofrecer el manejo adecuado.Se presentan tres casos de esta patología. Un hombre de 24 años con síntomas inflamatorios persistentes y recidivantes en el tobillo derecho, de 8 años de evolución. Una niña de 11 años que acude reiterativamente por dolor en hemitórax, clavícula derecha y tobillo izquierdo, y una niña de 12 años con múltiples episodios breves de síntomas inflamatorios en ambos tobillos. Los tres casos, sin leucocitosis, reactantes de fase aguda levemente aumentados o negativos, con criterios mayores y menores de Jasson para diagnóstico de esta patología. Los cuadros mejoraron con antinflamatorios no esteroides. Es importante conocer esta rara entidad como posibilidad diagnóstica, pues un diagnóstico oportuno evita el uso innecesario de antibióticos y la resolución del cuadro se logra con antinflamatorios no esteroides, sin necesidad de procedimientos quirúrgicos que aumentan las comorbilidades.
Instrucción Ortopédica de Posgrado - Imágenes. Presentación del caso.
Authors: Ghisi Juan Pablo , Vidal Cristina
Published: November 2018

Se presenta caso de tumefaccion de pie, y miembro inferior, con imagenes, para evaluar diagnosticos
Instrucción Ortopédica de Posgrado - Imágenes. Resolución del caso.
Authors: Ghisi Juan Pablo , Vidal Cristina
Published: November 2018

Se presenta caso e imagenes de una infeccion micotica, con estudio de imagen y epidemiologico.
Trimetazidine and Other Metabolic Modifiers
Authors: Guarini Giacinta ,   Cardiovascular Medicine Division, Cardiothoracic and Vascular Department, University of Pisa, Italy, Huqi Alda ,   Cardiovascular Medicine Division, Ospedale della Versilia, Lido di Camaiore, Italy, Morrone Doralisa ,   Cardiovascular Medicine Division, Cardiothoracic and Vascular Department, University of Pisa, Italy, Giuseppina Capozza Paola Francesca ,   Cardiovascular Medicine Division, Cardiothoracic and Vascular Department, University of Pisa, Italy, Marzilli Mario ,   Cardiovascular Medicine Division, Cardiothoracic and Vascular Department, University of Pisa, Italy
Published: November 2018

Treatment goals for people with chronic angina should focus on the relief of symptoms and improving mortality rates so the patient can feel better and live longer. The traditional haemodynamic approach to ischaemic heart disease was based on the assumption that increasing oxygen supply and decreasing oxygen demand would improve symptoms. However, data from clinical trials, show that about one third of people continue to have angina despite a successful percutaneous coronary intervention (PCI) and medical therapy. Moreover, several trials on chronic stable angina therapy and revascularisation have failed to show benefits in terms of primary outcome (survival, cardiovascular death, all-cause mortality), symptom relief or echocardiographic parameters. Failure to significantly improve quality of life and prognosis may be attributed in part to a limited understanding of ischaemic heart disease, by neglecting the fact that ischaemia is a metabolic disorder. Shifting cardiac metabolism from free fatty acids towards glucose is a promising approach for the treatment of patients with stable angina, independent of the underlying disease (macrovascular and/or microvascular disease). Cardiac metabolic modulators open the way to a greater understanding of ischaemic heart disease and its common clinical manifestations as an energetic disorder rather than an imbalance between the demand and supply of oxygen and metabolites.
Standard area diagram set for bacterial spot assessment in fruits of yellow passion fruit
Authors: Costa Anne Pinheiro , Pires Márcio de Carvalho , Peixoto José Ricardo , Blum Luiz Eduardo Bassay , Faleiro Fábio Gelape
Published: November 2018

Abstract This study developed and validated a standard area diagram set (SADs) for severity assessment of bacterial spot (Xanthomonas axonopodis pv. ) in passifloraefruits of yellow passion fruit (Passiflora edulis). The SADs consisted of eight severity levels (1%; 3%; 5%; 10%; 21%; 38%; 65%; and 80%). For its validation, 20 raters, who initially estimated the disease severity without the aid of the SADs, were divided into groups (G1 and G3, inexperienced; G2 and G4, experienced). Subsequently, G1 and G2 performed the second evaluation without the proposed SADs, and G3 and G4 completed the second evaluation using the proposed SADs. The accuracy and precision of the assessments were determined by simple linear regression and by the Lin’s concordance correlation coefficient. The increase in the accuracy was confirmed by the reduction in the constant and systematic errors, indicating that the estimated severities were close to the actual values when the SADs was used. Inexperienced raters benefited the most from the use of the SADs, and 60% and 100% of them presented constant and systematic error-free estimates, respectively. Precision increased with the increase in the coefficient of determination, the reduction in absolute errors, and the increase in the reproducibility of the estimates between pairs of raters.
Perception of risk sources by chilean blueberry producers
Authors: Lobos Germán , Schnettler Berta , Mena Carlos , Ormazábal Yony , Cantillana Juan Carlos , Retamales Jorge Borrar
Published: November 2018

Abstract The biological and environmental nature of the agricultural production implies that growers operate in an environment of greater risk as compared to other economic activities. This has implications on the manner in which the growers can manage the risks inherent to their activity, which depends on how they perceive the risks and on the degree of aversion to risk. The main objective of this study was to learn about the perception of the main sources of risk that blueberry growers face in the Maule Region, Chile. This Region has about 25% of the planted area of this species in Chile. We used information from questionnaires implemented in 124 fields which considered two independent groups of growers: 48 owners and 76 managers. A scale of Importance of the Sources of Risk (ISR) was used. It included 13 items that the interviewed had to rank according to their importance through a Likert-type scale of four levels. The exploratory analysis allowed to infer that the ISR scale had adequate levels of internal consistency (Cronbach´s alpha = 0.83). The results showed that the climatic events are perceived by the growers as the main source of risk for blueberry production in Chile. The analysis also showed that the price of the product and the currency exchange rate are the next risks in importance for the field owners. On the other hand, the risks for the managers were, in decreasing order of importance: yield, product price, variability in sales, and volumes for sale. The knowledge of the perception of risk by the growers is a fundamental input for designing instruments of agricultural policies, risk management and support programs for the growers.
Tireoidectomia endoscópica transoral por acesso vestibular (TOETVA): experiência inicial no Brasil.
Authors: Tesseroli Marco Antonio Scirea , Spagnol Mauricio , Sanabria Álvaro
Published: November 2018

RESUMO Objetivo: apresentar a experiência inicial no Brasil com a tireoidectomia transoral endoscópica por abordagem vestibular (TOETVA). Métodos: estudo prospectivo de pacientes submetidos à TOETVA no Serviço de Cirurgia de Cabeça e Pescoço do Hospital Regional do Oeste, Chapecó, Santa Catarina. Foram candidatos para o estudo os pacientes entre 18 e 65 anos de idade, ASA I e II, com volume glandular de até 35cm3e nódulos de até de 4cm. Dados dos pacientes, dos nódulos, tempo cirúrgico, complicações, e tempo de internação foram registrados. Resultados: nove pacientes foram operados entre maio de 2017 e abril de 2018. Todos eram mulheres, com idades entre 33 e 64 anos. O tamanho do nódulo variou de 1cm a 4cm. Dois pacientes eram portadores de neoplasia maligna e a tireoidectomia total foi feita em oito casos. Sete pacientes tiveram uma internação de apenas um dia. Um paciente sofreu uma complicação menor na pele, mas não ocorreram lesões dos nervos laríngeos recorrentes ou hipoparatireoidismo definitivo. Conclusão: a TOETVA é uma técnica segura para pacientes bem selecionados, com condições favoráveis e com especial preocupação com resultados estéticos.
Comparação clínica, laboratorial e densitométrica de pacientes com coxartrose e com fraturas do colo femoral.
Authors: Spinelli Leandro de Freitas , Pagnussato Fernando , Ribeiro Tiango Aguiar , Guareze Felipe Silva , Feder Marta Goldman , Macedo Carlos Alberto de Souza , Moreira Luis Fernando , Galia Carlos Roberto
Published: November 2018

RESUMO Objetivo: comparar dados clínicos, laboratoriais e densitométricos de pacientes com osteoartrose e com fratura do colo femoral. Métodos: estudo transversal de pacientes com fratura do colo femoral e osteoartrose do quadril, submetidos à artroplastia de quadril. Dados clínicos, laboratoriais e densitométricos foram coletados. Resultados: cinquenta e três pacientes foram incluídos, 22 com fraturas do colo femoral e 31 com osteoartrose. Pacientes com fratura do colo do fêmur apresentaram maior idade do que os pacientes com osteoartrose, tendo valores de IMC, densidade mineral óssea e força de preensão palmar (pacientes sarcopênicos) inferiores, estando mais incapacitados neurologicamente e apresentando um pior escore ASA. Entre os vários parâmetros bioquímicos analisados, diferenças estatisticamente significantes foram encontrados no cálcio sérico total, cálcio ionizado, vitamina D, tiroxina livre, eritrócitos, hemoglobina, hematócrito, glóbulos brancos totais, neutrófilos, linfócitos e creatinina entre os dois grupos. Outros hormônios analisados e parâmetros bioquímicos não diferiram significativamente, apesar de mostrarem tendências entre os dois grupos. Conclusão: pacientes com fraturas do colo do fêmur são mais idosos do que pacientes com osteoartrose, apresentam um menor peso e IMC, são mais debilitados, muitos com anemia e massa óssea reduzida, além de terem uma diminuição significativa no cálcio total, cálcio ionizado, vitamina D e creatinina e um aumento significativo na tiroxina livre.
Fazendo orixás: sobre o modo de existência das coisas no candomblé
Authors: Marques Lucas
Published: November 2018

Resumo: Este trabalho tenta refletir sobre o modo como as “coisas” são feitas no universo do candomblé. Para isso, parto de uma etnografia realizada na oficina de José Adário dos Santos, mais conhecido como Zé Diabo, sobre a produção das chamadas ferramentas de orixás, artefatos de metal que se tornam - ou são preparados para - entidades das religiões de matriz africana no Brasil (Orixás, Exus, Voduns, Inquices, Caboclos etc.). Ao acompanhar os distintos processos de feitura dessas ferramentas, busco explorar como, no candomblé, o fazer deve ser pensado menos como uma “agência” e mais como um processo de canalização e composição de distintas forças que permeiam pessoas, deuses e coisas. Assim, no universo do candomblé, as formas não podem ser desvencilhadas das forças que as compõem. E tais forças, para se manterem “vivas”, demandam um cuidadoso e ininterrupto trabalho ritual, propondo-nos uma espécie de ecologia das práticas onde tudo, embora vivo, deve ser constantemente feito.
A crise do sistema financeiro globalizado contemporâneo: perspectivas a partir da reforma regulatória global pós-2008
Authors: MARTINS NORBERTO MONTANI
Published: November 2018

RESUMO O artigo analisa como a reforma regulatória implantada após a crise financeira internacional de 2008 afetou os processos estruturantes do sistema financeiro globalizado. Argumentamos que a reforma buscou re-regular os mercados financeiros, redefinir a estrutura e as bases do modelo de negócios dos bancos globais, influenciando a questão da intermediação, e limitar a capacidade de externalização do risco e de alavancagem das instituições e do sistema como um todo. Concluímos que as mudanças regulatórias, embora tímidas em alguns tópicos, influenciaram os processos estruturantes do sistema financeiro global e alteraram, menos pronunciadamente, seu modus operandi e suas bases de expansão.
Crossing boundaries: an assessment to the influence of post-Keynesianism on developmental macroeconomics
Authors: SILVA VICTOR CRUZ E , CURADO MARCELO
Published: November 2018

ABSTRACT Developmental macroeconomics, the economic theory that grounds new developmentalism, is a heterodox approach whose establishment was deeply influenced by dissonant schools of thought. Among these, post-Keynesianism occupies a special place. This essay aims at identifying the aspects of developmental macroeconomics in which this post-Keynesian influence is more notorious. To serve this purpose, we compare the economic diagnoses, social objectives and policy prescriptions defended by the partisans of these two schools of economic thought. Our conclusion is that despite the significant influence of post-Keynesianism in the formation of the new developmentalist strategy, there are several aspects of this strategy that must be understood as an original contribution of the Brazilian developmental school.
Ideologia versus Sociologia na Política Estadual Brasileira
Authors: SANTOS FABIANO , BATISTA CRISTIANE , DUTT-ROSS STEVEN
Published: November 2018

RESUMO O artigo se propõe a explorar possíveis determinantes da variação do gasto em saúde e educação nos estados brasileiros, no período compreendido entre 2002 e 2013, se o grau do desenvolvimento econômico dos estados, tal como defende a hipótese clássica da sociologia política, ou se configurações do arcabouço político, como ideologia dos governos estaduais e seu alinhamento com o governo federal, tal como considerado pela literatura da ciência política. Os resultados sustentam a validade das hipóteses centrais de ambas as literaturas, o que deve estimular os analistas à busca de uma teoria unificada do comportamento governamental na área social no contexto federativo brasileiro.
Vertical and Horizontal Misfit Analysis of 3-unit FDP Fabricated with Different Techniques and CAD/CAM Systems
Authors: Pellizzer1 Eduardo Piza , Mello Caroline Cantieri de , Gomes Jéssica Marcela de Luna , Santiago Júnior Joel Ferreira , Lemos Cleidiel Aparecido Araújo , Verri Fellippo Ramos
Published: November 2018

Abstract The aim of this is was evaluate the vertical and horizontal marginal adaptation of 3-unit fixed partial denture frameworks fabricated using different techniques and CAD/CAM systems. A total of 40 framework specimens were fabricated and divided into four groups as follows: lost-wax casting (G1); lost-wax casting with welding (G2); extraoral optical scanning of models (3S/DWOS) (G3); intraoral optical scanning (Cerec Bluecam/Sirona) (G4). A reference model was used to simulate a fixed partial denture with three elements (with a central pontic). The frameworks of G1 and G2 were cast in nickel-chromium (NiCr) alloy, whereas those of G3 and G4 were milled in zirconia. In all groups, vertical and horizontal marginal adaptation (over-contour and under-contour) was evaluated using a three-dimensional optical microscope (Quick Scope, Mitutoyo). The results showed higher vertical marginal misfit in G1 than in the other groups (p<0.001). Regarding horizontal marginal misfit, higher over-contour values occurred in G3 than in the other groups (p<0.001). G3 did not show under-contour at all, whereas the other groups did not differ from each other in this regard (p>0.05). Within the limitations of this study, it can be concluded that lost-wax casting with welding is a viable alternative to the use of CAD/CAM systems to fabricate frameworks of three-unit FPDs, since the techniques yielded similar vertical misfit values. Extra-oral CAD/CAM systems showed the highest horizontal misfit (over-contour) compared to other groups.
Oval Versus Circular-Shaped Root Canals: Bond Strength Reached with Varying Post Techniques
Authors: Webber Mariana Benedetti Ferreira , Bernardon Paula , França Fabiana M.G. , Amaral Flávia L.B. , Basting Roberta T. , Turssi Cecilia Pedroso
Published: November 2018

Abstract The aim of this study was to compare the bond strength (BS) of glass fiber posts (GFP) luted to oval and circular-shaped root canals rehabilitated using varying post techniques, at different intraradicular levels. Ninety 16-mm-long roots of human mandibular premolars, classified either as having oval or circular-shaped canals, were endodontically treated and prepared for restoration using one of three different post techniques (n=15): 1) single GFP; 2) resin-relined GFP; 3) main GFP associated with accessory posts. GFPs were luted with a dual polymerizing resin cement (RelyX ARC) after the canal had been treated with a 3-step etch-and-rinse adhesive system (Adper Scothbond Multipurpose). The samples were sectioned into three 1-mm-thick sections, which were differentiated by the root level (cervical, middle and apical) and tested for push-out BS. Assessment of failure mode was made under a stereomicroscope. Data were analyzed using repeated measures three-way ANOVA and Tukey’s test. The root canal cross-section had a significant influence on BS (p<0.001), with the lowest values being observed in oval-shaped canals. The post technique also significantly affected the BS (p=0.018), with the resin-relined GFPs providing the highest BS values in both oval and circular-shaped canals. Irrespective of the cross-section of the root canal and post technique, there was no significant difference in BS in the cervical, middle and apical third of the root canal (p=0.084). In oval-shaped canals, the BS to intraradicular dentin at cervical, middle or apical level could be increased when the GFPs posts were relined.
Interactions between Terpinen-4-ol and Nystatin on biofilm of Candida albicans and Candida tropicalis
Authors: Tonon Caroline Coradi , Francisconi Renata Serignoli , Bordini Ester Alves Ferreira , Huacho Patrícia Milagros Maquera , Sardi Janaína de Cássia Orlandi , Spolidorio Denise Madalena Palomari
Published: November 2018

Abstract The aim of this study was to evaluate the antifungal activity of Terpinen-4-ol associated with nystatin, on single and mixed species biofilms formed by Candida albicans and Candida tropicalis, as well as the effect of terpinen-4-ol on adhesion in oral cells and the enzymatic activity. The minimum inhibitory concentrations and minimum fungicide concentrations of terpinen-4-ol and nystatin on Candida albicans and Candida tropicalis were determined using the microdilution broth method, along with their synergistic activity (“checkerboard” method). Single and mixed species biofilms were prepared using the static microtiter plate model and quantified by colony forming units (CFU/mL). The effect of Terpinen-4-ol in adhesion of Candida albicans and Candida tropicalis in coculture with oral keratinocytes (NOK Si) was evaluated, as well as the enzymatic activity by measuring the size of the precipitation zone, after the growth agar to phospholipase, protease and hemolysin. Terpinen-4-ol (4.53 mg mL-1) and nystatin (0.008 mg mL-1) were able to inhibit biofilms growth, and a synergistic antifungal effect was showed with the drug association, reducing the inhibitory concentration of nystatin up to 8 times in single biofilm of Candida albicans, and 2 times in mixed species biofilm. A small decrease in the adhesion of Candida tropicalis in NOK Si cells was showed after treatment with terpinen-4-ol, and nystatin had a greater effect for both species. For enzymatic activity, the drugs showed no action. The effect potentiated by the combination of terpinen-4-ol and nystatin and the reduction of adhesion provide evidence of its potential as an anti-fungal agent.
I’ve got Toothache, I need Antibiotics: a UK Perspective on Rational Antibiotic Prescribing by Dentists
Authors: Thompson Wendy , Rios Leonardo Essado , Fedorowicz Zbys , Dailey Yvonne , Douglas Gail
Published: November 2018

Abstract Antibiotics do not cure toothache. This headline message of the United Kingdom’s (UK) Dental Antimicrobial Stewardship (AMS) toolkit’s posters and leaflets is aimed at patients; clinicians are expected to know this already. Evidence based clinical guidelines exist to set clear standards for good clinical practice yet there are barriers to compliance. The national AMS audit tool is designed for clinicians to review their management of acute dental conditions, including but not limited to the prescription of antibiotics. In this article we aim to help dental teams protect their patients and themselves from adverse events related to antibiotic prescription. It explores the emergent problem of Clostridium difficile, antibiotic resistance and severe sepsis, and considers some of the barriers, which clinicians have suggested, contribute to the unjustified prescription of antibiotics. Dentists must weigh the risks against the benefits before prescribing any antibiotic.
Adaptation of in vitro regeneration protocol for Brazilian wheat genotypes
Authors: Roesler Eduardo André , Manfroi Ernandes , Morás Andréa , Didoné Dielli Aparecida , Grando Magali Ferrari , Lau Elene Yamazaki
Published: November 2018

ABSTRACT: The availability of an efficient protocol for in vitro regeneration is imperative for genetic transformation. Using genotypes adapted to the target region as a transgenic platform accelerates the development of cultivars. Therefore, this study aimed to adapt an in vitro regeneration protocol for Brazilian wheat genotypes. For this purpose, the in vitro regeneration capacity of immature embryos from six Brazilian wheat genotypes using two protocols of regeneration of somatic embryos was analysed. Furthermore, combinations of 2,4-D and picloram in the callus induction medium were tested in order to improve regeneration efficiency. Genotypes with higher regeneration efficiency were BR18-Terena and PF020037, yielding 0.42 and 1.13 shoots per explant using the Hu and the Wu protocol, respectively. Adding 1mgL-1 2,4-D in the callus induction medium was the most favourable, producing 3.73 and 3.07 shoots per explant for PF020037 and BR18-Terena, respectively. In conclusion, a protocol for regeneration for two Brazilian wheat genotypes recommended and developed to be cultivated at the Cerrado region has been adapted.
2- Isopentenyladenine in the induction of direct somatic embryogenesis capacity of Coffea arabica L.
Authors: Alves Ivanilda dos Santos , Carmazini Valéria Cristina Barbosa , Santos Cosme Damião dos , Almeida Julieta Andrea Silva de
Published: November 2018

ABSTRACT: This study evaluated the effect of different concentrations of 2-isopentenyladenine (2-iP) on the direct somatic embryogenesis capacity of the Mundo Novo cultivar of Coffea arabica. Leaf explants were cultivated with half the MS salt concentration and the addition of sucrose (20gL-1) and 2-iP (0; 2.5; 5; 7.5 and 10µM). The 2-iP doses of 7.5 and 10µM produced the greatest responses with respect to the percentage of explants with embryogenic structures and the size of the embryogenic structures. However, the greatest production of somatic embryos occurred on the explants treated with 10µM of 2-iP, followed by 7.5µM, whereas their production was absent or reduced with 0 and 5µM, respectively.
Anesthetic recovery assisted by rope at three points in horses
Authors: Silva Diego Rafael Palma da , Silva Gabriele Biavaschi , Corte Flávio Desessards De La , Brass Karin Erica , Pozzobon Ricardo , Dau Stefano Leite , Gasperi Diego de , Freitas Gabrielle Coelho
Published: November 2018

ABSTRACT: This study evaluated the quality of anesthesyc recovery of horses using a three-point assisted method. Sixty-eight horses (37 females and 31 males) of different breeds, age and weight submitted to general anesthesia for abdominal - ABD (n=15), arthroscopy - ART (n=17), other orthopedic - ORT (n=18) and miscellaneous - MIX (n=18) surgical procedures. Isoflurane resulted in shorter recovery time (67.4±25.7min) compared to halothane (88.0±37.8min). The mean duration (±SD) of anesthesia for ABD, ORT, ART and MIXgroups was 166.7 (±14), 54.9 (±5.9), 86.5 (±7.3) and 76.4 (±32.5) minutes (min) respectively. Quality of recovery wasn’t influenced by duration of anesthesia or by use of analgesic, sedative and/or anesthetic drugs or not (p>0.05). Mean standing time (TEst) during anesthetic recovery was 67.5 (±29.9) min in ABD, 44.4 (±27) min in ORT, 42.2 (±23.2) min in ART and 39 (±14.7) min in MIX group. Average number of attempts (Ast) to stand was 1.8 (±0.8) in ABD group, 3.1 (±4.7) in ORT, 1.8 (±1.2) in ART and 1.8 (±1.2) in MIX. Recovery time (TRec) in ABD group was 102.2 (±36.5) min, ORT 70.1 (±36.5) min, ART 72.2 (±24.8) min and MIX group 66.6 (±19.1) min. TRec differed (p<0.05) between ABDand other groups. Three-point assisted recoveryfrom anesthesia showed to be a safe procedure during horses’ recovery. This method is easy to apply and well tolerated by horses regardless of the surgical procedure.