bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Thoracolumbar Pedicle Isthmus on Pedicle Screw Accuracy
Authors: Raasck Kyle , Khoury Jason , Aoude Ahmed , Beland Benjamin , Munteanu Alexander , Weber Michael H. , Golan Jeff
Published: May 2019

Study Design:

Retrospective analysis.

Objectives:

Aberrant pedicle screws can cause serious neurovascular complications. We propose that a predominant factor of pedicle screw breach is the vertebral anatomy at a given spinal level. We aim to investigate the inverse correlation between breach incidence and vertebral isthmus width.

Methods:

The computed tomography scans of patients undergoing thoracolumbar surgery were retrospectively reviewed. Breaches were categorized as minor (<2 mm) or major (>2 mm). Breach incidence was stratified by spinal level. Average isthmus width was then compared to the collected breach incidences. A regression analysis and Pearson’s correlation were performed.

Results:

A total of 656 pedicle screws were placed in 91 patients with 233 detected breaches. Incidence of major breach was 6.3%. Four patients developed post-operative radiculopathy due to breach. Breach incidence was higher in the thoracic than lumbar spine (Fisher’s exact test, P < .0001). The 2 spinal levels with the thinnest isthmus width (T4 and T5) were breached most often (73.7% and 73.9%, respectively). The 2 spinal levels with the thickest isthmus width (L4 and L5) were breached least often (20.5% and 11.8%). Breach incidence and isthmus width were shown to have a significant inverse correlation (Pearson’s correlation, R2 = 0.7, P < .0001).

Conclusions:

Thinner vertebral isthmus width increases pedicle screw breach incidence. Image-guided assistance may be most useful where breach incidence is highest and isthmus width is lowest (T2 to T6). Despite high incidence of cortical bone violation, there was little correlation with clinical symptoms. A breach is not automatically a clinical problem, provided the screw is structurally sound and the patient is symptomless.
Functional Limitations and Disability in Persons Living with HIV in South Africa and United States: Similarities and Differences
Authors: Kietrys David , Myezwa Hellen , Galantino Mary Lou , Parrott James Scott , Davis Tracy , Levin Todd , O’Brien Kelly , Hanass-Hancock Jill
Published: May 2019

Persons living with HIV (PLHIV) may experience disability. We compared disability among PLHIV in the United States and South Africa and investigated associations with health and demographic characteristics. Secondary analysis of cross-sectional data using medical records and questionnaires including the World Health Organization Disability Assessment Schedule (WHO-DAS) 2.0 12-item version (range: 0-36, with higher scores indicative of more severe disability). Between-country differences for the presence of disability were assessed with logistic regression and differences in severity using multiple regression. Eighty-six percent of US participants reported disability, compared to 51.3% in South Africa. The mean WHO-DAS score was higher in the United States (12.09 ± 6.96) compared to South Africa (8.3 ± 6.27). Participants with muscle pain, depression, or more years since HIV diagnosis were more likely to report disability. Being female or depressed was associated with more severity. Being adherent to anti-retroviral therapy (ART) and employed were associated with less severity. Because muscle pain and depression were predictive factors for disability, treatment of those problems may help mitigate disability in PLHIV.
Daratumumab plus carfilzomib and dexamethasone in patients with relapsed or refractory multiple myeloma
Authors: Chari Ajai , Martinez-Lopez Joaquín , Mateos María-Victoria , Bladé Joan , Benboubker Lotfi , Oriol Albert , Arnulf Bertrand , Rodriguez-Otero Paula , Pineiro Luis , Jakubowiak Andrzej , de Boer Carla , Wang Jianping , Clemens Pamela L. , Ukropec Jon , Schecter Jordan , Lonial Sagar , Moreau Philippe
Published: May 2019

Patients with relapsed or refractory multiple myeloma (RRMM) have limited treatment options and poor survival outcomes. The increasing adoption of lenalidomide-based therapy for frontline treatment of multiple myeloma has resulted in a need for effective regimens for lenalidomide-refractory patients. This phase 1b study evaluated daratumumab plus carfilzomib and dexamethasone (D-Kd) in patients with RRMM after 1 to 3 prior lines of therapy, including bortezomib and an immunomodulatory drug; lenalidomide-refractory patients were eligible. Carfilzomib- and daratumumab-naïve patients (n = 85) received carfilzomib weekly on days 1, 8, and 15 of each 28-day cycle (20 mg/m2 initial dose, escalated to 70 mg/m2 thereafter) and dexamethasone (40 mg/wk). Of these, 10 patients received the first daratumumab dose as a single infusion (16 mg/kg, day 1 cycle 1), and 75 patients received a split first dose (8 mg/kg, days 1-2 cycle 1). Subsequent dosing was per the approved schedule for daratumumab. Patients received a median of 2 (range, 1-4) prior lines of therapy; 60% were lenalidomide refractory. The most common grade 3/4 treatment-emergent adverse events were thrombocytopenia (31%), lymphopenia (24%), anemia (21%), and neutropenia (21%). Infusion-related reactions were observed in 60% and 43% of single and split first-dose patients, respectively. Overall response rate was 84% (79% in lenalidomide-refractory patients). Median progression-free survival (PFS) was not reached; 12-month PFS rates were 74% for all treated patients and 65% for lenalidomide-refractory patients. D-Kd was well tolerated with low neutropenia rates, and it demonstrated deep responses and encouraging PFS, including in patients refractory to lenalidomide. The trial was registered at www.clinicaltrials.gov as #NCT01998971.
Predictors of delirium after cardiac surgery in patients with sleep disordered breathing
Authors: Tafelmeier Maria , Knapp Marvin , Lebek Simon , Floerchinger Bernhard , Camboni Daniele , Creutzenberg Marcus , Wittmann Sigrid , Zeman Florian , Schmid Christof , Maier Lars Siegfried , Wagner Stefan , Arzt Michael
Published: May 2019

Introduction

Delirium ranks among the most common complications after cardiac surgery. Although various risk factors have been identified, the association between sleep disordered breathing (SDB) and delirium has barely been examined so far. Here, our objectives were to determine the incidence of post-operative delirium and to identify the risk factors for delirium in patients with and without SDB.

Methods

This subanalysis of the ongoing prospective observational study CONSIDER-AF (ClinicalTrials.govidentifierNCT02877745) examined risk factors for delirium in 141 patients undergoing cardiac surgery. The presence and type of SDB were assessed with a portable SDB monitor the night before surgery. Delirium was prospectively assessed with the validated Confusion Assessment Method for the Intensive Care Unit on the day of extubation and for a maximum of 3 days.

Results

Delirium was diagnosed in 23% of patients: in 16% of patients without SDB, in 13% with obstructive sleep apnoea and in 49% with central sleep apnoea. Multivariable logistic regression analysis showed that delirium was independently associated with age ≥70 years (OR 5.63, 95% CI 1.79–17.68; p=0.003), central sleep apnoea (OR 4.99, 95% CI 1.41–17.69; p=0.013) and heart failure (OR 3.3, 95% CI 1.06–10.35; p=0.039). Length of hospital stay and time spent in the intensive care unit/intermediate care setting were significantly longer for patients with delirium.

Conclusions

Among the established risk factors for delirium, central sleep apnoea was independently associated with delirium. Our findings contribute to identifying patients at high risk of developing post-operative delirium who may benefit from intensified delirium prevention strategies.
Ensuring research integrity: setting standards for robust and ethical conduct and reporting of research
Authors: Bhui Kamaldeep S. , Lee William , Kaufman Kenneth R. , Lawrie Stephen M.
Published: May 2019

We present an account of why we decided to retract a paper. We discovered a lack of adherence to conventional trials registration, execution, interpretation and reporting, and consequently, with the authors, needed to correct the scientific record. We set out our responses in general to strengthen research integrity.

Declaration of interest

K.S.B. is Editor-in-Chief of the British Journal of Psychiatry. W.L., K.R.K. and S.M.L. are members of the senior editorial committee and the research integrity committee for the journal. In the past three years, S.M.L. has received research support from Janssen and Lundbeck, and personal support from Janssen, Otsuka and Sunovion.
Financial Toxicity After Cancer in a Setting With Universal Health Coverage: A Call for Urgent Action
Authors: Bhoo-Pathy Nirmala , Ng Chiu-Wan , Lim Gerard Chin-Chye , Tamin Nor Saleha Ibrahim , Sullivan Richard , Bhoo-Pathy Nanthini Thevi , Abdullah Matin Mellor , Kimman Merel , Subramaniam Shridevi , Saad Marniza , Taib Nur Aishah , Chang Kian-Meng , Goh Pik-Pin , Yip Cheng-Har
Published: May 2019

BACKGROUND:

Financial toxicity negatively affects the well-being of cancer survivors. We examined the incidence, cost drivers, and factors associated with financial toxicity after cancer in an upper-middle-income country with universal health coverage.

METHODS:

Through the Association of Southeast Asian Nations Costs in Oncology study, 1,294 newly diagnosed patients with cancer (Ministry of Health [MOH] hospitals [n = 577], a public university hospital [n = 642], private hospitals [n = 75]) were observed in Malaysia. Cost diaries and questionnaires were used to measure incidence of financial toxicity, encompassing financial catastrophe (FC; out-of-pocket costs ≥ 30% of annual household income), medical impoverishment (decrease in household income from above the national poverty line to below that line after subtraction of cancer-related costs), and economic hardship (inability to make necessary household payments). Predictors of financial toxicity were determined using multivariable analyses.

RESULTS:

One fifth of patients had private health insurance. Incidence of FC at 1 year was 51% (MOH hospitals, 33%; public university hospital, 65%; private hospitals, 72%). Thirty-three percent of households were impoverished at 1 year. Economic hardship was reported by 47% of families. Risk of FC attributed to conventional medical care alone was 18% (MOH hospitals, 5%; public university hospital, 24%; private hospitals, 67%). Inclusion of expenditures on nonmedical goods and services inflated the risk of financial toxicity in public hospitals. Low-income status, type of hospital, and lack of health insurance were strong predictors of FC.

CONCLUSION:

Patients with cancer may not be fully protected against financial hardships, even in settings with universal health coverage. Nonmedical costs also contribute as important drivers of financial toxicity in these settings.
Lithium-Richest Phase of Lithium Tetrelides Li17Tt4 (Tt = Si, Ge, Sn, and Pb) as an Electride
Authors: Tsuji Yuta , Hashimoto Wataru , Yoshizawa Kazunari
Published: May 2019

The lithium-richest phase in the binary Li-Tt system (Tt = Si, Ge, Sn, and Pb) has a stoichiometry of Li17Tt4. In the beginning of this paper, the structural complexity of Li17Tt4 is gradually stripped away using the concept of the M26 cluster found in γ-brass structures and a Tt-centered polyhedral representation. By means of the first-principles electronic structure calculations, which are followed by the analyses of the electron localization function (ELF), Bader charges, and spin density, we observe non-nuclear maxima of the ELF, electron density, and spin density. Since the electron densities off the atoms are confined in crystalline voids, separated from each other, and behaving as an anion, Li17Tt4 can be identified as a potential zero-dimensional electride. This finding agrees with a simple Zintl picture, which suggests a valence electron count of [(Li+)17(Tt4−)4·e−]. Detailed analyses on the band structures, the projected density of states, and crystal orbitals at the Γ point in the reciprocal space hint at the potential of forming a bond between the non-nuclear electron density and the neighboring atoms. Signatures of bonding and anti-bonding orbital interactions can be witnessed.
Establishing how patient size and degree of miscentring affect CTDIvol, using patient data from a dose tracking system
Authors: Cournane Sean , Brunell Eimear , Rowan Michael
Published: May 2019

Objectives:

The work aimed to investigate and model the relationship between CT dose index (CTDIvol), patient size and miscentring metrics using data extracted from a dose tracking software tool. Further, using the established model we aimed to extract and estimate further AEC metrics and, finally, demonstrate how the CTDIvol may vary across a range of imaging exams and with variations in patient size, positional metrics and with scan parameters.

Methods:

CT scan parameters, patient dose metrics, patient positioning information and patient and water equivalent diameter information was extracted from abdomen, thorax–abdomen–pelvis and thorax imaging exams acquired on a 128-slice Siemens Somatom Definition AS + CT system using dose tracking software over a 1 year period. A miscentring factor, accounting for the magnification of the patient due to miscentring was derived. Significant predictors ( p-value < 0.001) of the CTDIvol were considered as inputs into the model following regression analysis.

Results:

The model was capable of describing the CTDIvol and its variation with patient miscentring and patient size. AEC parameters, such as the reference CTDIvol, reference diameter and the AEC strength were estimated. Further, the model allowed for comparisons of how changes in scan settings, such as kVp, pitch and slice thickness affected CTDIvol.

Conclusions:

We demonstrate the use of clinical data, extracted from dose tracking software, to investigate and monitor AEC behaviour and CT output.

Advances in knowledge:

The presented model allows for the remote investigation of AEC behaviour using patient data.
Accuracy of radiologic– laparoscopic peritoneal carcinomatosis categorization in the prediction of surgical outcome
Authors: Abdalla Ahmed Shimaa , Abou-Taleb Hisham , Ali Noha , M. Badary Dalia
Published: May 2019

Objective:

To evaluate the agreement between multiple detector CT (MDCT) and laparoscopy in the preoperative categorization of peritoneal carcinomatosis, and to determine the impact of this categorization on the prediction of cytoreduction status.

Methods:

This prospective study included 80 consecutive females with primary ovarian cancer eligible for cytoreductive surgery (CRS). MDCT and diagnostic laparoscopy were performed prior to surgery for assessment of peritoneal carcinomatosis extent. Based on PCI (peritoneal cancer index) score, carcinomatosis was categorized into three groups. Categorization agreement between CT and laparoscopy was assessed and compared with the intraoperative-histopathologically proven PCI. Impact of PCI categorization on cytoreduction status was also evaluated.

Results:

The overall agreement between CT and laparoscopy in preoperative peritoneal carcinomatosis categorization was good (K =0.71-0.79) in low category group and excellent in both moderate and large group (interclass correlation coeeficient = 0.89–0.91). (p<0.01)

Optimal cytoreduction was achieved in 62/80 (77.5%) patients, PCI < 20 was detected in 48/62 (77.4%), pre-operative PCI < 20 correctly predicted optimal cytoreductive surgery (OCS) in 40/48 (83.3%) cases.

Suboptimal cytoreduction was performed in 18/80 (22.5%) patients. PCI > 20 was detected in (10/18) 55.6%, preoperative CT and laparoscopy PCI > 20 correctly predicted SCS in 8/10 (80%) cases.

The area under receiver operating characteristic curve showed that PCI cut-off <20 was the best predictor of OCS with an accuracy 85%, sensitivity 97%, specificity 40%, negative predictive value 76%, and positive predictive value 93%.

Conclusion:

Both laparoscopy and CT are equally effective in pre-operative peritoneal carcinomatosis categorization. PCI < 20 is accurate in the prediction of optimal cytoreduction. More than half of patients with suboptimal cytoreduction had PCI > 20 and interval debulking surgery can be recommended.

Advances in knowledge:

Both laparoscopy and CT are equally effective in pre-operative peritoneal carcinomatosis categorization. PCI < 20 is accurate in the prediction of optimal cytoreduction. More than half of patients with suboptimal cytoreduction had PCI > 20 and interval debulking surgery can be recommended.
Gut microbiome-Mediterranean diet interactions in improving host health
Authors: Nagpal Ravinder , Shively Carol A. , Register Thomas C. , Craft Suzanne , Yadav Hariom
Published: May 2019

The gut microbiota plays a fundamental role in host health and disease. Host diet is one of the most significant modulators of the gut microbial community and its metabolic activities. Evidence demonstrates that dietary patterns such as the ‘Western diet’ and perturbations in gut microbiome (dysbiosis) have strong associations with a wide range of human diseases, including obesity, metabolic syndrome, type-2 diabetes and cardiovascular diseases. However, consumption of Mediterranean-style diets is considered healthy and associated with the prevention of cardiovascular and metabolic diseases, colorectal cancers and many other diseases. Such beneficial effects of the Mediterranean diet might be attributed to high proportion of fibers, mono- and poly-unsaturated fatty acids, antioxidants and polyphenols. Concurrent literature has demonstrated beneficial modulation of the gut microbiome following a Mediterranean-style diet in humans as well as in experimental animal models such as rodents. We recently demonstrated similar positive changes in the gut microbiome of non-human primates consuming a Mediterranean-style diet for long term (30 months). Therefore, it is rational to speculate that this positive modulation of the gut microbiome diversity, composition and function is one of the main factors intermediating the health effects of Mediterranean diet on the host. The present perspective discusses the evidences that the Mediterranean diet induces gut microbiome modulation in rodents, non-human primates and human subjects, and discusses the potential role of gut microbiota and microbial metabolites as one of the fundamental catalysts intermediating various beneficial health effects of Mediterranean diet on the host.
CONSTRUÇÃO DE CONHECIMENTOS POR MEIO DE REPRESENTAÇÕES FOTOGRÁFICAS: ASPECTOS SEMIÓTICOS E MATEMÁTICOS DA FOTOGRAFIA
Authors: Bachmann Evelize Hofelmann , Kursancew Thaisa Karina Kruger , Pereira Kariston , Pavanati Iandra , Sell Fabíola Sucupira Ferreira
Published: May 2019

Este estudo tem como objetivo investigar, a partir das concepções semióticas de Charles Sanders Peirce (1839-1914) e Lúcia Santaella (1944- ) a construção de conhecimentos matemáticos por meio de representações semióticas da fotografia. Em sua obra, Peirce dedicou-se ao estudo de diversas áreas da ciência, sendo uma delas a da semiótica, que para o filósofo deve ser pensada como uma lógica, a qual será retratada neste trabalho. Nesse viés, a fotografia por meio da linguagem semiótica produz significado e sentido naquele que a observa, sendo pensada neste estudo como uma possibilidade de ferramenta para a aprendizagem matemática. Assim, por meio de uma pesquisa bibliográfica buscou-se a resposta para a seguinte questão: como construir conhecimentos matemáticos a partir de representações apresentadas pela fotografia? Como considerações finais, concluiu-se com a pesquisa que é possível promover a aprendizagem matemática por meio da fotografia com fotos do cotidiano, uma vez que é possível encontrar elementos matemáticos no meio social, bem como a fotografia também possibilita a reflexão do contexto urbano sobre várias perspectivas.
ETNOGRAFIA DE MULHERES PRIVADAS DE LIBERDADE: A MEDICALIZAÇÃO E O ISOLAMENTO COMO FORMAS DE CONTROLE DOS CORPOS
Authors: Almeida Sandra Maciel , Castro Paula Almeida de
Published: May 2019

Resumo: A medicalização e o isolamento como formas de controle são trazidos, neste artigo, nas vozes de mulheres em espaços de privação de liberdade a partir das análises de uma pesquisa etnográfica que investigou três penitenciárias femininas e uma unidade para jovens que estão cumprindo medidas socioeducativas de internação, no Estado do Rio de Janeiro e no Distrito Federal. Apresenta-se, o modo como a norma institucional impossibilitada de compreendê-las pela cultura hegemônica, as enquadra e as reduz às díades, normal e anormal, certo e errado, bom e mau, através de sanções normalizadoras da sociedade contemporânea. Os resultados contribuem para o entendimento sobre o não-lugar dessas mulheres, marcado pela docilização, medicalização e isolamento dos seus corpos.Palavras-chave: Medicalização; Privação de liberdade; Etnografia; Mulheres.
LEITURAS E NARRATIVAS DE JOVENS NUMA UNIDADE SOCIOEDUCATIVA FLUMINENSE: EXPERIÊNCIAS E SABERES SOBRE GÊNERO E SEXUALIDADES
Authors: Schindhelm Virginia Georg , Barros Simone
Published: May 2019

Resumo: O artigo apresenta a atividade de contação de histórias para adolescentes numa unidade socioeducativa na Baixada Fluminense e reflete sobre a experiência dos jovens com contos de fadas e demais leituras que fazem emergir narrativas e histórias de vida, sonhos, fantasias e experiências subjetivas sobre gênero e sexualidades. A mediação de leituras é promovida por uma profissional em biblioteconomia que, cotidianamente, interage com emoções e relatos de meninos oriundos de comunidades populares e, muitas vezes, membros de facções criminosas. A oficina oferece a oportunidade de formar grupos reflexivos que desconstroem mitos e verdades sobre virilidades que trazem de ambientes familiares e comunitários comumente cercados por ideais heteronormativos e padrões hegemônicos de masculinidades.Palavras-chave: socioeducação; contação de histórias; gênero e sexualidades.
GÊNERO, SEXUALIDADES E CORPOREIDADES: REFLEXÕES DENTRO DAS UNIDADES SOCIOEDUCATIVAS DO RIO DE JANEIRO
Authors: Barros Aline Fonseca
Published: May 2019

Resumo: O presente artigo pretende discutir as reflexões estabelecidas em relação ao corpo, ao gênero e à sexualidade dentro das Instituições Socioeducativas do Município do Rio de Janeiro. Ao indicar as potencialidades e os limites das diferentes significações que este corpo pode ter, questiona-se como seria a convivência com os demais, vivenciando as inúmeras diferenças existentes por parte dos sujeitos privados de liberdade. Este estudo tem o objetivo de analisar como se dão as relações envolvendo a corporeidade no ambiente das Instituições Socioeducativas; envolvendo os aspectos de gênero e sexualidade; e de que forma a socioeducação pode promover uma melhor equidade social entre esses sujeitos excluídos dentro do sistema. A pesquisa de cunho qualitativo se pautou em uma revisão bibliográfica para traçar reflexões sobre corpo, gênero e sexualidade, e utilizou como instrumento para a coleta de dados questionários semiestruturados e entrevistas com adolescentes que estão cumprindo medida socioeducativa. Este trabalho buscará identificar as práticas comportamentais e discursos presentes na (re)construção do corpo, gênero e sexualidades dos adolescentes em conflito com a lei.Palavras-chave: Corpo; Socioeducação; Gênero; Sexualidades
Perceptive Fragility: Movement and porcelain
Authors: Summerlin Dawn
Published: May 2019

This visual essay focuses on the perception of fragility through the costume design and making process and subsequent creative interaction with performers, central to the creation of a piece of choreographed contemporary dance. Working with porcelain clay as wearable material, examples of emerging methodologies for researching costume are demonstrated. Through this practice its position as the governing element to the piece is explored as costume becomes the ‘text’ determining the choreography. Can the costume shape the physical and emotional responses, as its resistant, yet fragile form dictates the movement and senses of the body?
Identifying the socio-economics of pantomime through Cinderella’s footwear in 2017–18 adaptations of the tale
Authors: King Sally
Published: May 2019

Footwear plays a significant role in the fairy tale Cinderella and in different versions of the tale the eponymous character’s slipper has taken many different forms. Meanwhile, pantomime producers have for centuries been turning to the Cinderella tale for their stage adaptations, during which time the pantomimic slipper has regularly been described as a glass slipper, drawing on Charles Perrault’s 1697 French version of the tale. The glass slipper has also become the most popular form in literature, film and other media, particularly under the influence of Disney. This said, the description does not accurately reflect the physical form of Cinderella’s footwear in modern pantomime performances, which tends to be silver, sparkling, high-heeled shoes. Yet despite this general uniformity in the colour, style, size and material of Cinderella’s slipper presented in pantomimes, each theatre and production company shade their depiction with different nuances. This distinction is achieved through the handling of the slipper in the performance proper, through scripting and mise-en-scène, and through the framing of the slipper in paratextual material, such as programmes, flyers, posters, promotional videos, publicity shots, reviews and exhibitions. Research into this material through document analysis and live spectatorship suggests that the depiction of the slipper is intertwined with identity, specifically the socio-economic identity of each theatre and production. Based on a sample of six Cinderella pantomime productions from the 2017–18 season, it appears that Cinderella’s slipper works to prime and satisfy audiences attending different types of pantomimes. In this way, footwear bolsters each theatre’s self-identification and distinction from others whether they be small or large, recently founded or long-established, locally oriented or inflected by mass-media popular culture, in-house or commercially produced. Financial limitations or extravagance are encoded in the shoes, even when they appear almost identical upon cursory glance.
Análise da Qualidade Visual da Paisagem de praias arenosas na Orla de Itajaí-SC
Authors: Belino José Augusto Teixeira , Beltrão Mayara Carneiro , Marenzi Rosemeri Carvalho
Published: May 2019

A Qualidade Visual da Paisagem de uma área é um importante elemento a ser considerado na gestão de zonas costeiras. Este trabalho tem como objetivo analisar a Qualidade Visual da Paisagem nas praias Atalaia, Brava (Norte e Sul) e Cabeçudas, afim de entender e relacionar as preferências paisagísticas dos frequentadores das praias. A avaliação da Qualidade Visual da Paisagem foi realizada através do método direto, com a valoração de 24 fotografias por 76 usuários de praias. As entrevistas foram realizadas nos feriados de Carnaval e de Tiradentes em 2017. A Qualidade Visual da Paisagem das três praias apresentou média geral de 3,59 (Paisagem de Qualidade Alta), com a maior média de 4,54 (Paisagem de Qualidade Muito Alta) na praia Atalaia, e a menor média de 2,97 (Paisagem de Qualidade Média) na praia Cabeçudas.
Ethno-cultural development of children of preschool age in the process of connection to decorative-applied art
Authors: Alexandrovich Chernobrovkin Vladimir , Ferola Bianca Carvalho
Published: May 2019

The article updates and substantiates the role of ethno-cultural education of Russian children of senior preschool age in the process of acquaintance with arts and crafts. The theoretical and methodological foundations of the ethno-cultural education of children of the senior preschool age are studied in the process of acquaintance with arts and crafts, the ethno-cultural education of preschool children as a social and psychological and pedagogical phenomenon is described, the state of program and methodical support for the realization of ethno-cultural education of preschool children in modern conditions of development of preschool education is analysed, the role of arts and crafts in ethno-cultural education of children of senior preschool age in Russia is defined.The article suggests a set of measures, including a special program "We are wizards", aimed at the ethno-cultural education of senior preschoolers, which can be recommended to the mass practice of teachers of pre-school general educational institutions and teachers of additional education for children.

KEYWORDS: Ethno-culture. Ethno-cultural education. Folk culture. Arts and crafts. Ethno-cultural skill.
Exposições arqueológicas e povos indígenas: Passados excluídos e memórias exiladas
Authors: Wichers Camila Azevedo de Moraes
Published: May 2019

As exposições que envolvem vestígios arqueológicos compõem espaços onde memórias, esquecimentos e representações se estabelecem. No cenário brasileiro, essas exposições ainda estão longe de expressar a diversidade dos povos indígenas associados a esses vestígios. No presente artigo, essa questão é abordada a partir da problematização do conceito de memória, da proposição de um aparato teórico-metodológico para análise dos discursos expositivos e, por fim, da análise crítica de algumas exposições arqueológicas no Brasil, destacando a forma como as mesmas reforçam silenciamentos, ocultamentos e estereótipos, perpetuando passados excluídos e memórias exiladas no que concerne aos povos indígenas associados a esses vestígios, no passado e no presente.
Arqueologia e linguística: Construindo as trajetórias histórico-culturais dos povos Tupí
Authors: Silva Fabíola Andréa , Noelli Francisco Silva
Published: May 2019

Entender as causas e os significados da variabilidade e da padronização artefatual encontradas no registro arqueológico é um dos principais objetivos da pesquisa arqueológica. Neste texto pretendemos mostrar como o diálogo interdisciplinar é fundamental para que alcancemos tal objetivo e, para isso, tomaremos como exemplo o estudo das trajetórias histórico-culturais das populações Tupi, dando ênfase Ã  relação profícua entre arqueologia e linguística.
Da invenção do índio nacional às atuais formas de protagonismos indígenas no Brasil
Authors: Ferreira Filho Aurelino José
Published: May 2019

O objetivo deste artigo é atualizar algumas reflexões que tenho desenvolvido em torno da atual condição do ser índio no Brasil contemporâneo: o autorreconhecimento e a autodeclaração de pertencimento a um grupo étnico-cultural, especificamente o indígena, como elementos de afirmação de identidades e protagonismos indígenas no momento presente; mais especificamente, aspectos da constituição do índio brasileiro, suas nuances na historiografia e na literatura didática.
Once upon a time, ceramic veneers were so thin, so thin, but so thin... that some did not even have to exist
Authors: Schneider Luis Felipe Jochims
Published: May 2019

"A mensagem-título representa muito mais do que uma ironia. De maneira mais profunda, ela é uma crítica à busca obsessiva pela beleza, ao tecnicismo ainda tão presente na Odontologia e, principalmente, aos exageros e sobretratamentos consequentes de um mercado de trabalho saturado. Se, por um lado, ficamos maravilhados com as possibilidades de atuação graças aos avanços tecnológicos; por outro, temos um número cada vez maior de palestras e cursos com meras exposições de sequências operatórias, acompanhadas de pouco conteúdo ou nenhum senso crítico. [...]"
Palatal and Mandibular Tori: diagnosis, clinical significance and conceptual basis
Authors: Consolaro Alberto , Consolaro Renata Bianco , Hadaya Omar , Oliveira Ingrid Araújo de , Miranda Dario Augusto Oliveira
Published: May 2019

Os toros palatino e mandibular são distúrbios do desenvolvimento do tipo anomalia de forma, com manifestação tardia no crescimento e maturação dos maxilares. Os casos familiares e a persistência dos toros com a idade e em desdentados lhes atribuem uma origem genética, que começa a ser desvendada. Há uma dificuldade para interpretar os toros como uma resposta adaptativa à sobrecarga oclusal, bruxismo e outros fatores externos, pois os toros não são hiperplasias e hipertrofias adaptativas. Os toros são protuberâncias ósseas sem cápsula fibrosa, o que os diferencia dos osteomas e lhes tira a natureza neoplásica, mesmo que benigna, especialmente porque também não apresentam crescimento contínuo e sem controle por parte do organismo. O tamanho dos toros se estabiliza ao final do crescimento dos maxilares, por volta dos 22 a 24 anos de idade. Os toros são constituídos de osso normal, do ponto de vista funcional e estrutural, e podem ser utilizados como sítio de origem de transplante ósseo autógeno para outros locais ou como sede de implantes osseointegráveis, se houver conveniência clínica para tais procedimentos. A sua remoção pode ser feita quando impedem procedimentos odontológicos terapêuticos.
Is the path right?
Authors: Barceleiro Marcos
Published: May 2019

"Estamos nos aproximando de mais um encontro do Grupo Brasileiro de Professores de Dentística. E, como acontece em todos os nossos congressos, professores renomados sempre estão presentes, trazendo o que há de mais atual dentro dos assuntos que dizem respeito à nossa especialidade. Além disso, serão realizadas algumas discussões relativas ao ensino da Dentística nas universidades brasileiras. Assim como no passado se discutiu, por exemplo, qual seria o melhor método para proteção do complexo dentinopulpar, ou se ainda haveria espaço para o ensino do amálgama em nossas universidades, traremos nesse próximo encontro algumas discussões importantes sobre o ensino de procedimentos adesivos em nossas universidades."
Refinements of the Hermite–Hadamard inequality for co-ordinated convex mappings
Authors: Budak Huseyin , Usta Fuat , Sarikaya Mehmet Zeki
Published: May 2019

This paper is motivated by the recent progress on the Hermite–Hadamard inequality for convex functions defined on the bounded closed interval, obtained by Z. Pavić [Z. Pavić,
Improvements of the Hermite–Hadamard inequality,
J. Inequal. Appl. 2015 2015, Article ID 222].
As a generalization, we obtained a new refinement of the Hermite–Hadamard inequality for co-ordinated convex functions defined on the rectangle.
Decay rates for a coupled quasilinear system of nonlinear viscoelastic equations
Authors: Mustafa Muhammad I. , Kafini Mohammad
Published: May 2019

In this paper, we consider a nonlinear quasilinear system of two coupled viscoelastic equations and investigate the asymptotic behavior of this system.
We establish an explicit and general formula for the energy decay rates.
Our result allows a wider class of relaxation functions, which improves earlier results existing in the literature.
A note on the regularity of weak solutions to the coupled 2D Allen–Cahn–Navier–Stokes system
Authors: Tachim Medjo T.
Published: May 2019

In this article, we study a coupled Allen–Cahn–Navier–Stokes model in a two-dimensional domain.
The model consists of the Navier–Stokes equations for the velocity, coupled with an Allen–Cahn model for the order (phase) parameter.
We present an equivalent weak formulation for the model, and we prove a new regularity result for the weak solutions.
The Organised Self and Lifestyle Minimalism: Multimodal Deixis and Point of View in Decluttering Vlogs on YouTube
Authors: Zappavigna Michele
Published: May 2019

This paper explores how people present their relationship to their domestic objects in decluttering vlogs on YouTube, where they show the process of getting rid of undesired items. These videos are associated with discourses of ‘minimalism’ that are currently prevalent on social media platforms. The paper adopts a multimodal social semiotic approach, focusing on how language, gesture, and the visual frame coordinate intermodally to make meanings about objects. The multimodal construction of deixis in coordination with a type of ‘point-of-view shot’, filmed from the visual perspective of the vlogger, is examined. The broader aim is to investigate what these videos reveal about how digital semiotic capitalism is inflecting the lived experience of social media users. What is at stake is how people articulate intersubjective meanings about their experiences and relationships through the way they communicate about their objects.
Piezo-electrets from polypropylene composites doped with mineral fillers
Authors: Kaczmarek Halina , Chylińska Marta , Klimiec Ewa , Królikowski Bogusław , Sionkowski Grzegorz , Machnik Monika
Published: May 2019

PP-based composites with two mineral fillers (perlite or glass beads) were manufactured by extrusion, and then subjected to orientation in a ratio of 3:1. Electrets were obtained in the polarization process under the influence of a constant electric field. Sample morphology was tested by SEM whereas the crystallinity was determined by XRD. Mechanical strength and thermal stability of composites was studied by tensile tests and thermogravimetric analysis, respectively. The piezoelectric characteristics were appointed by measurement of the electrical charge and current voltage in the polarized samples. The dependence of thermally stimulated depolarized current (TSDC) on temperature was also investigated. The piezoelectric coefficient (d33), the electret stability over time as well as activation energy of depolarization process have been determined. It was found that low filler content (i.e. 2.5 and 5 wt.% of glass beads and perlite, respectively) significantly improve piezoelectric properties of isotactic polypropylene (i-PP).
Finite semiotics: Cognitive sets, semiotic vectors, and semiosic oscillation
Authors: Shackell Cameron
Published: May 2019

The grounding of semiotics in the finiteness of cognition is extended into constructs and methods for analysis by incorporating the assumption that cognition can be similar within and between agents. After examining and formalizing cognitive similarity as an ontological commitment, the recurrence of cognitive states is examined in terms of a “cognitive set.” In the individual, the cognitive set is seen as evolving under the bidirectional, cyclical determination of thought by the historical environment. At the population level, the distributed “global” cognitive set is argued to be constrained to a manifold in which the cognition of individuals is determined only when their cognitive sets meet certain conditions in the world: a result seen as consistent with Lotman’s semiosphere.

With these foundations in place, dimensional modelling of the semiosic field is inaugurated. Firstly, measures of cognitive similarity are formalized as cognitive “distance” and on this basis the concept of a semiotic vector is defined. Secondly, semiotic vectors are seen to shape a general pattern of oscillation in semiosis, and thus to imply zero points in semiosic potential. Thirdly, semiosic oscillation in individual agents is shown to be consistent with a novel diachronic or longitudinal interpretation of Greimas’ semiotic square expanded into a “semiotic pipe” in which cognition traverses an n-dimensional space structured by axes of oscillation. Finally, the expanded theory of finite semiotics is advanced as a useful basis for two new complementary disciplines: (1) a computational, mathematical science of “natural semiotic processing” (NSP) to trace and model semiotic vectors and oscillation; and (2) an ethical, rhetorical art of “technological influencing” (TI) to guide its inputs and applications.
Facile synthesis of model 2,4-diaryl-1,3,4-thiadiazino[5,6-h]fluoroquinolones
Authors: Abadleh Mohammed M. , Arafat Tawfiq , Abu-Qatouseh Luay , El-Abadelah Mustafa M. , Awwadi Firas F. , Voelter Wolfgang
Published: May 2019

A Selected set of 2,4-diaryl-7-oxo-1,2,4-thiadiazino[5,6-h]quinoline-8-carboxylic acids 6a–e has been prepared via reaction of the parent 7-chloro-8-nitro-10-cyclopropyl-6-fluoroquinolone 4 with the appropriate N′-(aryl)benzothiohydrazide 5a–e in presence of triethylamine. Structures of the new heterocyclics 6a–e are supported by spectral data and confirmed by single-crystal X-ray crystallography for 6a.
Using Thermal Gradient Measurements to Compare Bath Temperature and Agitation Effects on the Quenching Performance of Palm Oil, Canola Oil and a Conventional Petroleum Oil
Authors: Matijevic Bozidar , Canale Bruno F. , Liscic Bozidar , Totten George E.
Published: May 2019

A proprietary Liscic/Petrofer cylindrical Inconel 600 probe of 50-mm diameter and 200-mm length which was instrumented with three thermocouples on the same radius of the cross-section at the middle of the length was used to determine the differences in quenching performance of two vegetable oils, palm oil and canola oil, and they were compared to a locally produced conventional petroleum oil quenchant. The cooling curves and heat transfer performance of these oils were determined at different bath temperatures and agitation rates. The work was performed at the Quenching Research Centre located at the Faculty for Mechanical Engineering, University of Zagreb, Croatia. The results of this comparative study are reported herein.
Renewable Energy on Tribal Lands: A Feasibility Study for a Biomass-to-Energy Plant on the Cocopah Reservation in Arizona
Authors: D’Souza Lauren K. , Ascher William L. , Srebotnjak Tanja
Published: May 2019

Native American reservations are among the most economically disadvantaged regions in the United States; lacking access to economic and educational opportunities that are exacerbated by “energy insecurity” due to insufficient connectivity to the electric grid and power outages. Local renewable energy sources such as wind, solar, and biomass offer energy alternatives but their implementation encounters barriers such as lack of financing, infrastructure, and expertise, as well as divergent attitudes among tribal leaders. Biomass, in particular, could be a source of stable base-load power that is abundant and scalable in many rural communities. This case study examines the feasibility of a biomass energy plant on the Cocopah reservation in southwestern Arizona. It considers feedstock availability, cost and energy content, technology options, nameplate capacity, discount and interest rates, construction, operation and maintenance (O&M) costs, and alternative investment options. This study finds that at current electricity prices and based on typical costs for fuel, O&M over 30 years, none of the tested scenarios is presently cost-effective on a net present value (NPV) basis when compared with an alternative investment yielding annual returns of 3% or higher. The technology most likely to be economically viable and suitable for remote, rural contexts—a combustion stoker—resulted in a levelized costs of energy (LCOE) ranging from US$0.056 to 0.147/kWh. The most favorable scenario is a combustion stoker with an estimated NPV of US$4,791,243. The NPV of the corresponding alternative investment is US$7,123,380. However, if the tribes were able to secure a zero-interest loan to finance the plant’s installation cost, the project would be on par with the alternative investment. Even if this were the case, the scenario still relies on some of the most optimistic assumptions for the biomass-to-power plant and excludes abatement costs for air emissions. The study thus concludes that at present small-scale, biomass-to-energy projects require a mix of favorable market and local conditions as well as appropriate policy support to make biomass energy projects a cost-competitive source of stable, alternative energy for remote rural tribal communities that can provide greater tribal sovereignty and economic opportunities.
Ilgalaikio nedarbo tendencijų ir regioninių skirtumų įvertinimas Lietuvoje
Authors: Pocius Arūnas , Miežienė Rasa
Published: May 2019

[straipsnis ir santrauka lietuvių kalba; santrauka anglų kalba]

Straipsnis parengtas remiantis Nacionalinės mokslo programos „Gerovės visuomenė“ 2017–2018 m. projekto „Regioniniai gerovės skirtumai Lietuvoje“ rezultatais (projekto Nr. GER-005/2017). Projektą finansuoja Lietuvos mokslo taryba. Publikacijoje vertinamos ilgalaikio nedarbo tendencijos šalyje ir bedarbių skaičiaus raida pagal nedarbo trukmę, analizuojami ilgalaikio nedarbo lygio skirtumai Lietuvoje ir lyginami su ES šalimis. Bene esminiai šios publikacijos prioritetai – regioninių ilgalaikio nedarbo skirtumų įvertinimas bei kaimo ir miesto gyventojų ilgalaikio nedarbo skirtumų kaitos analizė. Atsižvelgiant į informacijos disponavimo ir jos palyginamumo galimybes, tyrimo eigoje pasinaudota Lietuvos statistikos departamento (LSD), Europos Sąjungos statistikos tarnybos (Eurostato) bei Užimtumo tarnybos1 prie Lietuvos Respublikos socialinės apsaugos ir darbo ministerijos (Užimtumo tarnybos) duomenimis.
Paauglių kūdikių gimstamumo kaitos tendencijos: Europos sąjungos kontekstas ir regioninė diferenciacija Lietuvoje
Authors: Tretjakova Vaida , Pociūtė-Sereikienė Gintarė , Ubarevičienė Rūta
Published: May 2019

[straipsnis ir santrauka lietuvių kalba; santrauka anglų kalba]

Straipsnio tikslas – išanalizuoti paauglių kūdikių gimstamumo kaitą Europos Sąjungos šalyse ir Lietuvoje, atskleidžiant pokyčių kryptį, mastą bei regioninę diferenciaciją. Šiame straipsnyje Lietuvos situacija lyginama su tendencijomis kitose ES šalyse. Taip pat atliekama regioninės paauglių kūdikių gimstamumo diferenciacijos Lietuvoje analizė. Straipsnyje analizuojamas bendrasis paauglių kūdikių gimstamumo rodiklis 15–19 metų amžiaus moterų grupei bei gimstamumo rodikliai 15–17 ir 18–19 metų amžiaus moterų grupėms. Tyrimas atliktas naudojant Eurostato duomenų bazės bei pagal konfidencialių statistinių duomenų teikimo mokslo tikslams sutartį specialiai šiam projektui parengtus Lietuvos statistikos departamento registruojamosios statistikos duomenis.
Monitoring and Reporting Of Quality in Statistics
Authors: Lukšaitė-Balakauskienė Laura
Published: May 2019

[full article, abstract in English; abstract in Lithuanian]

The present paper introduces the main principles of the quality management system of Statistics Lithuania, which is based on the ISO 9001 standard, and explains how the system promotes user confidence in statistics through the regular quality monitoring and reporting exercise. It is explained how the quality of statistics is measured and presented to the public; the usefulness of quality reports to the users, especially to researchers and academia, is discussed. Moreover, some results from the monitoring exercise and examples of quality reports are presented.
Досвід державного управління охороною навколишнього середовища в країнах ЄС
Authors: Prokopenko L. L. , Tishkova N. L.
Published: May 2019

Проаналізовано досвід здійснення державного управління в країнах Європейського Союзу, зокрема застосування таких нових інструментів, як екологічні угоди та самозобов’язання. На основі аналізу практики укладання добровільних екологічних угод в країнах ЄС, насамперед у Нідерландах та ФРН, дається їх характеристика. Висвітлюються переваги та недоліки укладання добровільних екологічних угод в практиці державного управління в сфері охорони навколишнього середовища в таких проблемних областях, як зниження впливу на навколишнє середовище існуючих джерел забруднення, зменшення викидів токсичних речовин, підвищення енергоефективності та ін. Розкрито чинники, які впливають на добровільну саморегуляцію підприємств, у тому числі практика поєднання добровільних підходів з обов’язковими компонентами державної політики регулювання. Значне місце відведено аналізу використання контрактної технології здійснення екологічної політики та дається оцінка такого підходу з точки зору перспектив природоохоронної політики.