bluuebunny/crossref_metadata_2025 huggingface dataset:
Precarious city: home-making and eviction in Buenos Aires, Argentina
Authors: Muñoz Solange
Published: July 2017

This article expands on current conceptualizations and applications of precarity by exploring the everyday socio-spatial complexities of migrant squatters living in informal hotels in the center of Buenos Aires, Argentina. Through ethnographic methods, this research investigates squatters’ practices of negotiating access to shared domestic spaces and resources, while experiencing long-term waiting for eviction from their home and potentially from the city center. Employing a cultural geographies approach, this work is concerned with understanding the ways in which precarity is routinely experienced in the micro-spaces of everyday life. Precarity is examined in its temporal and spatial manifestations, with particular emphasis on gendered experiences and home-making practices. Moving through daily spaces and routine situations, I document how precarity is embedded in the mundane tasks of the domestic, and as a result, unevenly impacts women whose traditional roles as mothers and caretakers mean that they are often at the fore of place-making practices and responsibilities.
Underwater blast resistance of sacrificial claddings with small/significant strain hardening
Authors: Jin Zeyu , Yin Caiyu , Chen Yong , Zhang Zhenhua , Hua Hongxing
Published: July 2017

The vitality and fighting capacity of warships will be influenced by the underwater explosion–induced shock loadings. The foam materials have excellent energy dissipation capabilities and are widely used in mitigating impact/shock. In this article, a one-dimensional model for the shock mitigation of cellular claddings exhibiting small/significant strain hardening is proposed for both water blast loading and hydrostatic pressure. Special emphases are concentrated on the cellular material compression with actual stress–strain relationship and the effects of hydrostatic pressure on the shock mitigation performance of the cladding. Finite element models are developed to verify the analytical model. When considering the actual material relationship of the cellular claddings, the compaction mechanism is complex due to multiple reflections. A reflected secondary compression wave generates and propagates from the clamped end to the impinged end for a foam block with finite thickness. Later, there are even third or more compaction waves. It is worth to note that the part inside the secondary compacted zone continue to deform in quasi-static “Homogeneous” mode. Moreover, the effects of the hydrostatic pressure on the foam compression are revealed. The results can guide the design of such cellular claddings to water blast for naval ships.
Comparison of Births by Provider, Place, and Payer in New Hampshire
Authors: Hamlin Lynette
Published: July 2017

This study examines maternity care in a rural state by birth attendant, place of birth, and payer of birth. It is a secondary analysis of birth certificate data in New Hampshire between the years 2005 and 2012. Results revealed that in New Hampshire, the majority of births occurred in the hospital setting (98.6%). Physicians attended 75.8% of births, certified nurse midwives attended 17%, and certified professional midwives attended 1%. Medicaid coverage was the payer source for 28% of all births, compared with 44.9% nationally. Women with a private payer source were more likely than women with Medicaid or other payer sources to have a cesarean section. The findings demonstrate quality of care outcomes among a range of clinicians and settings, providing a policy argument for expanding maternity care options.
NADPH oxidase-2 derived superoxide drives mitochondrial transfer from bone marrow stromal cells to leukemic blasts
Authors: Marlein Christopher R. , Zaitseva Lyubov , Piddock Rachel E. , Robinson Stephen D. , Edwards Dylan R. , Shafat Manar S. , Zhou Zhigang , Lawes Matthew , Bowles Kristian M. , Rushworth Stuart A.
Published: July 2017

Key Points

Functional mitochondria are transferred in vivo from BMSC to the leukemic blast. AML-derived NOX2 drives transfer of mitochondria via the generation of superoxide.
Arterial stiffness in symptomatic smokers with normal lung function
Authors: Scichilone Nicola , Tuttolomondo Antonino , Maida Carlo , Benfante Alida , Peluso Jessica , Cirrincione Anna , Vassallo Valerio , Pinto Antonio
Published: July 2017

Chronic obstructive pulmonary disease (COPD) is associated with cardiovascular morbidity and mortality. Arterial stiffness and endothelial dysfunction index are validated surrogate cardiovascular markers and are increased in subjects with COPD.

We tested whether increased arterial stiffness and endothelial dysfunction occur in symptomatic smokers with no evidence of bronchial obstruction. Clinical and lung functional assessments were conducted in smoker subjects with chronic respiratory symptoms and in COPD patients. Pulse wave velocity (PWV), aortic augmentation index (AIx) and reactive hyperaemia index (RHI) were measured to estimate the cardiovascular risk.

48 smokers (male n=37, female n=11; mean age 70±8.4 years) were studied. Smokers with respiratory symptoms without bronchial obstruction (n=13) did not differ from COPD patients (n=35) in terms of mean±sdPWV (12±3.2 m·s−1versus14±3.8 m·s−1; p=0.10), aortic AIx (25.2±11.8%versus24.8±9.7%, p=0.89) and RHI (1.66±1.49versus1.62±1.43; p=0.79).

The current investigation shows that the cardiovascular risk occurs in smokers with respiratory symptoms in the absence of bronchial obstruction. These findings need to be confirmed in larger populations in order to inform the design of intensive preventive programmes.
Nuclear magnetic resonance surface relaxation mechanisms of kerogen
Authors: Zhang Boyang , Daigle Hugh
Published: July 2017

Nuclear magnetic resonance (NMR) relaxometry is an excellent tool for probing the interactions between solid pore surface and pore fluids in porous media. Surface relaxation is a key component of NMR relaxation. It is well-known that in conventional rocks, paramagnetic centers contribute most to the surface relaxation phenomenon. However, the interactions between organic pore surfaces and pore fluids, and the mechanism of surface relaxation in organic shale pores, are not well-understood. We tackle the issue using deuterated compounds to adjust the proton density in the liquid phase and monitoring the transverse relaxation rate changes of kerogen-fluid mixtures. With the Barnett and Eagle Ford kerogen isolates, we found that for alkanes, it is intramolecular dipolar coupling that dominates among the magnetic interactions. As a result, the transverse relaxation rate of alkane proton spins is more likely to be dependent on the concentration of active adsorption sites on the kerogen surface, rather than the kerogen proton density. For water inside organic pores, surface relaxation most likely originates from hydrogen bonding and intermolecular dipolar coupling. We also examined the temperature effect on kerogen surface relaxation and found temperature-dependent behavior that is consistent with surface relaxation by hydrogen bonding and homonuclear dipolar coupling interactions.
Source to sink sandstone-mudstone proportion and facies distribution across a third-order clastic wedge, Cretaceous Western Interior Seaway
Authors: Gomez-Veroiza Carolina A. , Steel Ronald J.
Published: July 2017

The Iles Clastic Wedge is a 500 m thick, 3 My duration, third-order sequence that built out eastward in the Cretaceous Western Interior Seaway. The wedge also contains high-frequency regressive-to-transgressive sequences that are irregularly stacked in a basinward-stepping pattern (lower limb) and in a landward-stepping pattern (upper limb). The entire wedge and the component cycles were analyzed in terms of vertically monitored sandstone-mudstone proportion, thickness, and facies distribution. The measured profiles through the Iles Clastic Wedge form a 300 km long, source-to-sink transect from southeast Rock Springs uplift, Wyoming to Kremmling, Colorado. The sandstone proportion in the entire wedge (and also in the basinward-stepping half of the wedge) attains a maximum in the proximal reaches (fluvial and tidal-fluvial/estuarine channels) of the study transect and decreases unsteadily toward the medial and distal zone. A slight secondary increase in sand proportion also appears irregularly in the medial shoreline zone. On the other hand, the sandstone proportion in the landward-stepping half of the wedge reaches a maximum in the medial (tidal-fluvial and estuarine channels and delta-front) to distal zone (basinal regressive delta) of the wedge and decreases slightly sourceward. Along individual fourth-order sequences, the sandstones and mudstones indicate a more nuanced partitioning, with three marked sandstone maxima (proximal, medial, and distal zones), separated by zones with abundant mudstone. These sandstone peaks are produced by the presence of fluvial and tidal-fluvial/estuarine channel sandstones in the most proximal zone, delta front/shoreface in the medial reaches, and basinal regressive delta front in the distal zone. The mudstone peaks represent the muddy, coal-bearing coastal plain and the prodelta area. This accentuated sandstone and mudstone partitioning at shorter time scales (few 100 Ky) becomes blurred at the longer time scale (3 My) because of the progressive basinward, then landward, offset of successive high-frequency sequences that form the larger clastic wedge.
Accuracy of wavelets, seismic inversion, and thin-bed resolution
Authors: Zabihi Naeini Ehsan , Sams Mark
Published: July 2017

Broadband reprocessed seismic data from the North West Shelf of Australia were inverted using wavelets estimated with a conventional approach. The inversion method applied was a facies-based inversion, in which the low-frequency model is a product of the inversion process itself, constrained by facies-dependent input trends, the resultant facies distribution, and the match to the seismic. The results identified the presence of a gas reservoir that had recently been confirmed through drilling. The reservoir is thin, with up to 15 ms of maximum thickness. The bandwidth of the seismic data is approximately 5–70 Hz, and the well data used to extract the wavelet used in the inversion are only 400 ms long. As such, there was little control on the lowest frequencies of the wavelet. Different wavelets were subsequently estimated using a variety of new techniques that attempt to address the limitations of short well-log segments and low-frequency seismic. The revised inversion showed greater gas-sand continuity and an extension of the reservoir at one flank. Noise-free synthetic examples indicate that thin-bed delineation can depend on the accuracy of the low-frequency content of the wavelets used for inversion. Underestimation of the low-frequency contents can result in missing thin beds, whereas underestimation of high frequencies can introduce false thin beds. Therefore, it is very important to correctly capture the full frequency content of the seismic data in terms of the amplitude and phase spectra of the estimated wavelets, which subsequently leads to a more accurate thin-bed reservoir characterization through inversion.
Identifying Health Information Technology Needs of Oncologists to Facilitate the Adoption of Genomic Medicine: Recommendations From the 2016 American Society of Clinical Oncology Omics and Precision Oncology Workshop
Authors: Hughes Kevin S. , Ambinder Edward P. , Hess Gregory P. , Yu Peter Paul , Bernstam Elmer V. , Routbort Mark J. , Clemenceau Jean Rene , Hamm John T. , Febbo Phillip G. , Domchek Susan M. , Chen James L. , Warner Jeremy L. ,   OPO Workshop Members
Published: July 2017

At the ASCO Data Standards and Interoperability Summit held in May 2016, it was unanimously decided that four areas of current oncology clinical practice have serious, unmet health information technology needs. The following areas of need were identified: 1) omics and precision oncology, 2) advancing interoperability, 3) patient engagement, and 4) value-based oncology. To begin to address these issues, ASCO convened two complementary workshops: the Omics and Precision Oncology Workshop in October 2016 and the Advancing Interoperability Workshop in December 2016. A common goal was to address the complexity, enormity, and rapidly changing nature of genomic information, which existing electronic health records are ill equipped to manage. The subject matter experts invited to the Omics and Precision Oncology Workgroup were tasked with the responsibility of determining a specific, limited need that could be addressed by a software application (app) in the short-term future, using currently available genomic knowledge bases. Hence, the scope of this workshop was to determine the basic functionality of one app that could serve as a test case for app development. The goal of the second workshop, described separately, was to identify the specifications for such an app. This approach was chosen both to facilitate the development of a useful app and to help ASCO and oncologists better understand the mechanics, difficulties, and gaps in genomic clinical decision support tool development. In this article, we discuss the key challenges and recommendations identified by the workshop participants. Our hope is to narrow the gap between the practicing oncologist and ongoing national efforts to provide precision oncology and value-based care to cancer patients.
Interventions for Neuropathic Pain: An Overview of Systematic Reviews
Authors: Dosenovic Svjetlana , Jelicic Kadic Antonia , Miljanovic Maja , Biocic Marina , Boric Krste , Cavar Marija , Markovina Nikolina , Vucic Katarina , Puljak Livia
Published: July 2017

Numerous interventions for neuropathic pain (NeuP) are available, but its treatment remains unsatisfactory. We systematically summarized evidence from systematic reviews (SRs) of randomized controlled trials on interventions for NeuP. Five electronic databases were searched up to March 2015. Study quality was analyzed using A Measurement Tool to Assess Systematic Reviews. The most common interventions in 97 included SRs were pharmacologic (59%) and surgical (15%). The majority of analyzed SRs were of medium quality. More than 50% of conclusions from abstracts on efficacy and approximately 80% on safety were inconclusive. Effective interventions were described for painful diabetic neuropathy (pregabalin, gabapentin, certain tricyclic antidepressants [TCAs], opioids, antidepressants, and anticonvulsants), postherpetic neuralgia (gabapentin, pregabalin, certain TCAs, antidepressants and anticonvulsants, opioids, sodium valproate, topical capsaicin, and lidocaine), lumbar radicular pain (epidural corticosteroids, repetitive transcranial magnetic stimulation [rTMS], and discectomy), cervical radicular pain (rTMS), carpal tunnel syndrome (carpal tunnel release), cubital tunnel syndrome (simple decompression and ulnar nerve transposition), trigeminal neuralgia (carbamazepine, lamotrigine, and pimozide for refractory cases, rTMS), HIV-related neuropathy (topical capsaicin), and central NeuP (certain TCAs, pregabalin, cannabinoids, and rTMS). Evidence about interventions for NeuP is frequently inconclusive or completely lacking. New randomized controlled trials about interventions for NeuP are necessary; they should address safety and use clear diagnostic criteria.
Editorial changes
Authors: Pourquié Olivier , Brown Katherine
Published: July 2017

Summary: Development announces changes to the editorial team and invites community input in choosing a new Editor in Chief and in suggesting future areas for the journal to explore.
Nestin contributes to skeletal muscle homeostasis and regeneration
Authors: Lindqvist Julia , Torvaldson Elin , Gullmets Josef , Karvonen Henok , Nagy Andras , Taimen Pekka , Eriksson John E.
Published: July 2017

Nestin, a member of the cytoskeletal family of intermediate filaments, regulates the onset of myogenic differentiation through bidirectional signaling with the kinase Cdk5. Here, we show that these effects are also reflected at the organism level, as there is a loss of skeletal muscle mass in nestin−/− (NesKO) mice, reflected as reduced lean (muscle) mass in the mice. Further examination of muscles in male mice revealed that these effects stemmed from nestin-deficient muscles being more prone to spontaneous regeneration. When the regeneration capacity of the compromised NesKO muscle was tested by muscle injury experiments, a significant healing delay was observed. NesKO satellite cells showed delayed proliferation kinetics in conjunction with an elevation in p35 (encoded by Cdk5r1) levels and Cdk5 activity. These results reveal that nestin deficiency generates a spontaneous regenerative phenotype in skeletal muscle that relates to a disturbed proliferation cycle that is associated with uncontrolled Cdk5 activity.
The E3 ubiquitin ligase NEDD4 induces endocytosis and lysosomal sorting of connexin 43 to promote loss of gap junctions
Authors: Totland Max Z. , Bergsland Christian H. , Fykerud Tone A. , Knudsen Lars M. , Rasmussen Nikoline L. , Eide Peter W. , Yohannes Zeremariam , Sørensen Vigdis , Brech Andreas , Lothe Ragnhild A. , Leithe Edward
Published: July 2017

Intercellular communication via gap junctions has an important role in controlling cell growth and in maintaining tissue homeostasis. Connexin 43 (Cx43; also known as GJA1) is the most abundantly expressed gap junction channel protein in humans and acts as a tumor suppressor in multiple tissue types. Cx43 is often dysregulated at the post-translational level during cancer development, resulting in loss of gap junctions. However, the molecular basis underlying the aberrant regulation of Cx43 in cancer cells has remained elusive. Here, we demonstrate that the oncogenic E3 ubiquitin ligase NEDD4 regulates the Cx43 protein level in HeLa cells, both under basal conditions and in response to protein kinase C activation. Furthermore, overexpression of NEDD4, but not a catalytically inactive form of NEDD4, was found to result in nearly complete loss of gap junctions and increased lysosomal degradation of Cx43 in both HeLa and C33A cervical carcinoma cells. Collectively, the data provide new insights into the molecular basis underlying the regulation of gap junction size and represent the first evidence that an oncogenic E3 ubiquitin ligase promotes loss of gap junctions and Cx43 degradation in human carcinoma cells.
Thermal imprinting modifies bone homeostasis in cold challenged sea bream (Sparus aurata, L.)
Authors: Mateus Ana Patrícia , Costa Rita , Gisbert Enric , Pinto Patricia I. S. , Andree Karl B. , Estévez Alicia , Power Deborah M.
Published: July 2017

Fish are ectotherms and temperature plays a determinant role in their physiology, biology and ecology and is a driver of seasonal responses. The present study assessed how thermal imprinting during embryonic and larval stages modified the response of adult fish to low water temperature. We targeted the gilthead sea bream that develops a condition known as winter syndrome when it is exposed to low water temperatures. Eggs and larvae of sea bream were exposed to four different thermal regimes and then the response of the resulting adults to a low temperature challenge was assessed. Sea bream exposed to a high-low thermal regime as eggs and larvae (HLT, 22°C until hatch and then 18°C until larvae-juvenile transition) had increased plasma cortisol and lower sodium and potassium in response to a cold challenge compared to the other thermal history groups. Plasma glucose and osmolality were increased in cold challenge HLT fish relative to the unchallenged HLT fish. Cold challenge modified bone homeostasis/responsiveness in the low-high thermal regime group (LHT) relative to other groups and ocn, ogn1/2, igf1, gr and trα/β transcripts were all down-regulated. In the low temperature group (LT) and HLT group challenged with a low temperature, ALP/TRAP activities were decreased relative to unchallenged groups and bone calcium content also decreased in the LT group. Overall, the results indicate that thermal imprinting during early development of sea bream causes a change in the physiological response of adults to a cold challenge.
Play with sounds
Authors: Hewson Claire
Published: July 2017

Set in a ‘dark, rackety wood’ in the dead of night, The Great AAA-OOO, by Jonny Lambert, is about a group of animals who are worried by a mysterious sound. It's a great hook to practise literacy skills.
Express yourself
Authors: Williams Brenda
Published: July 2017

This month's poem invites children to identify their feelings and develop their vocabulary to express them. Help them to acquire the tools of engagement for making and understanding relationships.
Decomposition of approaches of a general linear model with fixed parameters
Authors: Jiang Bo , Tian Yongge
Published: July 2017

The well-known ordinary least-squares estimators (OLSEs) and the best linear unbiased estimators (BLUEs) under linear regression models can be represented by certain closed-form formulas composed by the given matrices and their generalized inverses in the models. This paper provides a general algebraic approach to relationships between OLSEs and BLUEs of the whole and partial mean parameter vectors in a constrained general linear model (CGLM) with fixed parameters by using a variety of matrix analysis tools on generalized inverses of matrices and matrix rank formulas. In particular, it establishes a variety of necessary and sufficient conditions for OLSEs to be BLUEs under a CGLM, which include many reasonable statistical interpretations on the equalities of OLSEs and BLUEs of parameter space in the CGLM. The whole work shows how to effectively establish matrix equalities composed by matrices and their generalized inverses and how to use them when characterizing performances of estimators of parameter spaces in linear models under most general assumptions.
Functional outcomes following non-operative versus operative treatment of clavicle fractures in adolescents
Authors: Herzog M. M. , Whitesell R. C. , Mac L. M. , Jackson M. L. , Culotta B. A. , Axelrod J. R. , Busch M. T. , Willimon S. C.
Published: July 2017

Purpose

Superiority of non-operative versus operative treatment of clavicle shaft fractures remains unclear. We aimed to assess shoulder function in adolescents following shortened clavicle fracture and compare operative versus non-operative treatment.

Methods

Patients aged 12 to 18 years at the time of fracture and minimum 1.5 years post injury were identified for this institutional review board (IRB)-approved study. For this retrospective cohort study, patients were frequency-matched for age, gender, shortening of the clavicle fracture and activity level. The dominant arm was controlled in the statistical model. Initial radiographs were used to measure clavicle shortening. At follow-up, isokinetic testing of both shoulders was performed in flexion, external rotation and the plane of scapular motion. Maximum number of isotonic repetitions and average isometric torque were recorded, as were ASES and DASH scores. Data were analysed comparing non-operative and operative groups and involved and uninvolved shoulders.

Results

Twenty patients were recruited (18 male, 2 female), with ten in each group. Median clavicle shortening was 17.5 mm (11.4 to 23.6). There was no statistical difference in average ASES (100 vs 99; p = 0.84) or DASH (0.0 vs 1.7; p = 0.08) between non-operative and operative groups, respectively. Results of isokinetic testing comparison between non-operative and operative groups showed no statistical difference for any individual association, controlling for the dominant arm. Among the non-operative group, the involved arm had decreased functional measures compared with the uninvolved arm on all measures, when controlling for dominant arm, and there was increased variability of the functional estimate.

Conclusions

The increased variability in functional measures for the non-operative group suggests some patients may have dysfunction.
The available evidence on demineralised bone matrix in trauma and orthopaedic surgery
Authors: van der Stok J. , Hartholt K. A. , Schoenmakers D. A. L. , Arts J. J. C.
Published: July 2017

Objectives

The aim of this systematic literature review was to assess the clinical level of evidence of commercially available demineralised bone matrix (DBM) products for their use in trauma and orthopaedic related surgery.

Methods

A total of 17 DBM products were used as search terms in two available databases: Embase and PubMed according to the Preferred Reporting Items for Systematic Reviews and Meta Analyses statement. All articles that reported the clinical use of a DBM-product in trauma and orthopaedic related surgery were included.

Results

The literature search resulted in 823 manuscripts of which 64 manuscripts met the final inclusion criteria. The included manuscripts consisted of four randomised controlled trials (level I), eight cohort studies (level III) and 49 case-series (level IV). No clinical studies were found for ten DBM products, and most DBM products were only used in combination with other grafting materials. DBM products were most extensively investigated in spinal surgery, showing limited level I evidence that supports the use Grafton DBM (Osteotech, Eatontown, New Jersey) as a bone graft extender in posterolateral lumbar fusion surgery. DBM products are not thoroughly investigated in trauma surgery, showing mainly level IV evidence that supports the use of Allomatrix (Wright Medical, London, United Kingdom), DBX (DePuy Synthes, Zuchwil, Switzerland), Grafton DBM, or OrthoBlast (Citagenix Laval, Canada) as bone graft extenders.

Conclusions

The clinical level of evidence that supports the use of DBM in trauma and orthopaedic surgery is limited and consists mainly of poor quality and retrospective case-series. More prospective, randomised controlled trials are needed to understand the clinical effect and impact of DBM in trauma and orthopaedic surgery. Cite this article: J. van der Stok, K. A. Hartholt, D. A. L. Schoenmakers, J. J. C. Arts. The available evidence on demineralised bone matrix in trauma and orthopaedic surgery: A systemati c review. Bone Joint Res 2017;6:423–432. DOI: 10.1302/2046-3758.67.BJR-2017-0027.R1.
PRODUÇÃO DO CONHECIMENTO EM ESTUDOS BRASILEIROS SOBRE ENVELHECIMENTO NO PERÍODO DE 2005 A 2015
Authors: Oliveira Albermara Leite , Reis Luciana Araújo dos
Published: July 2017

O envelhecimento é definido pela Organização Mundial de Saúde (OMS) como o processo de otimização das oportunidades de saúde, participação e segurança, com o objetivo de melhorar a qualidade de vida à medida que as pessoas ficam mais velhas. O objetivo deste estudo é analisar a produção científica sobre envelhecimento nos anos de 2005 a 2015. Trata-se de uma revisão sistemática de literatura a partir de artigos científicos. A busca de dados foi realizada na base de dados SciELO e BVS. As informações coletadas a partir dos artigos foram analisadas utilizando a técnica de análise temática fundamentada na análise de conteúdo de Bardin. A coleta de dados foi realizada em novembro de 2015 e reuniu o total de 21 artigos. As informações coletadas a partir dos artigos foram interpretadas através de estudo temático fundamentado na análise de conteúdo de Bardin com auxílio do software NVivo, versão 11.0. A nuvem de palavras apontou como mais frequentes, em ordem decrescente, as palavras: “Envelhecimento”, “Cognitivo”, “Lazer”, “Qualidade” e “Declínio”. Assim, quatro temas de análise emergiram. Pôdese concluir com a presente pesquisa, que são necessários mais estudos sobre o envelhecimento e seu processo em geral, por se tratar de um assunto complexo e importante para a sociedade e para pesquisas posteriores.
EFEITOS DO TREINAMENTO SENSÓRIO-MOTOR NO EQUILÍBRIO DE IDOSOS: REVISÃO SISTEMÁTICA
Authors: Gusmão Mayra Ferraz Santos , Reis Luciana Araújo dos
Published: July 2017

O envelhecimento provoca redução da capacidade do sistema nervoso em processar estímulos visuais, proprioceptivos e vestibulares, resultando na diminuição da capacidade de manutenção da postura, tornando os idosos suscetíveis aos distúrbios de equilíbrio. O objetivo do estudo é analisar osefeitos do treinamento sensório-motor no equilíbrio de idosos por meio de uma revisão sistemática. A busca de dados foi realizada na base de dados Scielo e BVS, utilizando o operador booleano AND com os descritores: idoso, equilíbrio,treinamento, fisioterapia e tratamento. A coleta de dados foi realizada em Fevereiro de 2016 e reuniu o total de 15 artigos, sendo todos analisados. As informações coletadas foram analisadas por meio de análise de conteúdo de Bardin com auxílio do software NVivo, versão 11.0. A nuvem de palavras apontou como mais frequentes, em ordem decrescente, as palavras: "equilíbrio postural", "treinamento" e "idosos". Assim, três temas de análise emergiram: "Déficit de equilíbrio em idosos"; "Programas de treinamento sensório-motor" e"Benefícios de exercícios terapêuticos em idosos". Pôde-se concluir com o presente estudo que os idosos apresentam redução do equilíbrio como resultado do processo de envelhecimento, sendo importante a realização de treinamento sensóriomotor nessa população para melhora do equilíbrio e redução dodeclínio funcional.
ASPECTOS PSICOSSOCIAIS DO TRABALHO DE AGENTES COMUNITÁRIOS DE SAÚDE
Authors: Neves Michelle Oliveira , Almeida Talita Hevilyn Ramos da Cruz , Querino Aline Daud Lima , Flores Lino Débora Cristiane Silva , Souza Rozemere Cardoso de
Published: July 2017

Este estudo objetivou analisar aspectos psicossociais do cotidiano profissional de Agentes Comunitários de Saúde (ACS), a partir da prevalência de Transtornos Mentais Comuns (TMC) e do modelo Demanda-Controle. Trata-se de um estudoepidemiológico de corte transversal, realizado com uma amostra de 179 ACS do município de Itabuna, Bahia, Brasil. Para coleta de dados, aplicou-se questionário estruturado, contendo, dentre outras, questões relativas ao SRQ20 (Self Reporting Questionnaire), ao JCQ (Job Content Questionnaire)e às condições sociodemográficas e ocupacionais. Fez-se análise estatística descritiva, através do Programa SPSS, versão 21.0. Dentre os resultados, destacam-se: maior frequência de mulheres (82,7%), com união estável (76,5%) e idade média de 39 anos. O tempo médio de trabalho foi de 8anos. Sobre participação em treinamentos, a maioria referiu ter recebido treinamento antes (85,5%) e durante (82,1%) o exercício da função. A prevalência de TMC foi de 39,4%. Sobre o modelo Demanda-Controle frente ao trabalho, a distribuição dos ACS revelou que 39,1% dos trabalhadores vivenciam situações de vulnerabilidade, sendo expostos a baixo controle ou a alta demanda. Conclui-se que o TMC e baixo controle e alta demanda no trabalho são problemas psicossociais que afetam parcelas significativas dos ACS, os quais carecem de estratégias para melhoria da assistência e da vida no trabalho.
O PROCESSO DE IMPLANTAÇÃO DE UMA ESTRATÉGIA INTEGRADA DE SIS NA APS: A EXPERIÊNCIA DO E-SUS AB NO MATO GROSSO, BRASIL
Authors: Astolfo Susi , Kehrig Ruth Terezinha
Published: July 2017

Objetivo: Este estudo descreve o processo de implantação do e-SUS Atenção Básica no âmbito do estado de Mato Grosso de 2014 a 2015. A estratégia é uma inovação tecnológica proposta pelo Departamento de Atenção Básica do Ministério da Saúde, com dois softwares que alimentam o novo Sistema de Informação em Saúde da Atenção Básica (SISAB) em substituição ao Sistema de Informação da Atenção Básica (SIAB). Método: Trata-se de um estudo descritivo, com abordagem transversal com base em dados secundários disponibilizados pela Secretaria de Estado de Saúde. Os dados foram analisados descritivamente na forma de frequência absoluta e proporções. Resultados: Em dezembro de 2015, notou-se que 4,3% dos 141 municípios não haviam iniciado a implantação; 2% estão com a mesma incipiente; 7,6% no estágio intermediário e 84,7% com o estágio implantado. Conclusão: O referido processo avançou consideravelmente no período estudado em Mato Grosso.
ACESSIBILIDADE EM UNIDADE BÁSICA DE SAÚDE: A VISÃO DE USUÁRIOS E PROFISSIONAIS
Authors: Justo Cátia Maria , Duque Andrezza , Lopes Quétilan Silva , Carvalho Ellen Silva , Moreno Anne Christine , Silva Renata , Santos Vídia Katerine , Bandeira Gabriel Figueira
Published: July 2017

Este estudo objetivou avaliar o atributo acessibilidade da Atenção Básica de Saúde (ABS) em duas unidades básicas de saúde (UBS) de Lagarto/SE, por meio de uma pesquisa analítica, transversal, com amostra composta por 48 profissionais e 199 usuários adultos. Utilizou-se o Primary Care Assessment Tool (PCATool). Foram encontradas dificuldade de acesso ao serviço à noite e aos finais de semana. A espera maior que 30 minutos para atendimento foi apontada pela maioria dos profissionais e usuários como fatores limitantes. O acesso diurno por telefone e atendimento no mesmo dia foram avaliados negativamente apenas pelos usuários. A maioria dos profissionais afirmou ser fácil marcar consultas. O escore essencial do atributo acessibilidade foi 1,98 e 1,64 para profissionais e usuários, respectivamente, dado que representa avaliação predominantemente negativa. Verificouse ao final do estudo a necessidade de implementar medidas que facilitem a entrada do paciente ao serviço de saúde.
PREVALÊNCIA, GRAVIDADE E FATORES ASSOCIADOS AO TRAUMATISMO DENTÁRIO EM ESCOLARES DE 12 E 15-19 ANOS DE IDADE EM SALVADOR, BAHIA
Authors: Vieira Elvis Matos , Cangussu Maria Cristina Teixeira , Vianna Maria Isabel Pereira , Cabral Maria Beatriz Barreto , Roque Ramon Narriel , Dos Anjos Erlane Silva
Published: July 2017

O traumatismo dentário tem registrado altas prevalências tanto em crianças como em adolescentes brasileiros e o dano provocado pelo mesmo pode acarretar em perdas dentais irreparáveis. Nesse sentido, o presente estudo temo propósito de identificar a prevalência e gravidade do traumatismo dentário no município de Salvador- Bahia, em escolares de 12 e 15-19 anos de idade, matriculados em escolas de ensino fundamental e médio da rede públicado município, bem como identificar variáveis associadas à maior prevalência desta condição. Desenvolveu-se um estudo transversal, com uma amostra de 2.944 escolares da rede pública. A coleta de dados foi realizada em ambiente escolar envolvendo exame clínico e entrevista para obtenção de dados sociodemográficos, hábitos e utilização dos serviços de saúde. Foi realizada análise descritiva e multivariada através da regressão logística. A prevalência de traumatismo foi de 16,45% para os escolares de 12 anos e 14,02% paraos escolares de 15-19 anos. O gênero masculino foi o mais acometido e os escolares que se declararam negros tiveram as maiores prevalências. A fratura de esmalte foi a mais prevalente, e a unidade dentária mais acometida foi o incisivo central superior esquerdo. Foi menor a prevalência de traumanaqueles do sexo feminino (OR= 0,77; 0,62-0,94 05%IC) e maior naqueles adolescentes com atraso escolar (OR=1,38; 1,12-1,71 95%IC). Foi alta a prevalência de traumatismo neste grupo e são necessários estudos mais específicos para identificar fatores de risco relacionados ao mesmo.
SURTOS RECORRENTES ENTRE OPERÁRIOS DA CONSTRUÇÃO CIVIL: A INSEGURANÇA ALIMENTAR NA AGENDA DO PET-VS
Authors: Oliveira Renata Freitas de Araujo , Teles Amanda dos Santos , Coelho Thereza Christina Bahia , Brandão Graziela Ribeiro Vinhas , El Fahl Rosamaria Nunes Trindade
Published: July 2017

Este artigo, enquanto produto do Programa de Educação pelo Trabalho para a Saúde - Vigilância em Saúde (PETVS), objetivou descrever e analisar procedimentos adotados pelas Vigilâncias Epidemiológica e Sanitária em três surtos de origem alimentar, entre operários da construção civil. As fontes de dados foram Relatórios Técnicos, com informações insuficientes, sobre as condições higiênico-sanitárias dos estabelecimentos fornecedores de alimentos, transporte, conservação, análise da água, alimentos, e exames clínicosdos envolvidos. Os 370 trabalhadores apresentaram: vômitos, diarreia sanguinolenta, tremores e sudorese intensa, mas não foi isolado o agente etiológico. Nas três concessionárias, contratadas pela mesma construtora, foram detectadas sérias irregularidades na produção, transporte e consumo dos alimentos. A capacitação dos manipuladores de alimentos e a presença do responsável técnico garantem boas práticas de fabricação. A Vigilância à Saúde deve estar preparada para atuar na segurança alimentar. O PET pode contribuirpara a transformação dessas práticas.
A pesquisa pulsa no interior vivo do Sistema Único de Saúde
Authors: Coelho Thereza Christina Bahia
Published: July 2017

O primeiro número do volume 7 da Revista de Saúde Coletiva da UEFS objetivou ressaltar a diversidade de problemáticas de saúde e a multiplicidade de desenhos metodológicos dos estudos ora publicados que interrogam o SUS enquanto processo vivo de transformação social.
Evidence-based policy or risk minimisation? The regulation of e-cigarettes in Australia
Authors: Newman Joshua
Published: July 2017

Theoretical discussions of evidence-based policy place primary importance on facts and values. However, there are situations in which policy must be made in the absence of facts and values. In this article, one such situation is investigated: the emergence of electronic cigarettes. This article reviews attempts to regulate e-cigarettes in Australia, a country with a history of international leadership on regulating tobacco cigarettes. The article concludes that Australian governments have not been following an evidence-based approach and, further, it suggests that these governments are instead content to minimise political risk by either taking no action or by adapting existing legislation.
Scheduling of agents in inbound multilingual call centers
Authors: Barbosa Luiz Henrique Santanna , Gomes Carlos Francisco Simões , Chaves Maria Cecilia C.
Published: July 2017

This paper presents an Integer Linear Programming model, which enables the scheduling of agents in call centers according to segmentation by skills, as well as the inclusion of labor law restrictions. The results from the experimental application of this method to situations involving real-time problems are presented, wherein the necessary shifts to meet forecasted demand are provided, in addition to an economically optimum combination of agents and skills, generating a solution, which is sufficient to maintain the desired level of service at the lowest cost possible. The approach proposed in this study presents an alternative worthy of consideration, since it is able to successfully incorporate the flexibility of call centers with skills-based routing in an easy-to-implement model that has proven to be effective in experiments conducted in on-the-job settings. Advances in information technology and telecommunications in recent years have increasingly heightened the presence of call centers in the day-to-day of companies and their customers. Call center management should endeavor to achieve a balance between technical performance and economic performance (labour costs, equipment, trunks and rates). It is estimated that 70% of the operating costs of call centers are currently related to labor costs. This paper provides research on how to significantly reduce personnel-related operational costs without negatively affecting the quality of the service.
Numerical and Experimental Study of Producing Two-Step Flanges by Extrusion with a Movable Sleeve
Authors: Winiarski G. , Gontarz A.
Published: July 2017

The paper presents a new metal forming process for producing two-step external flanges on hollow parts. With this method, the flange is extruded by a movable sleeve, which moves in the opposite direction to the punch. This reduces the phenomenon of buckling of the tube wall, which allows extruding flanges with relatively large volumes. The new method was applied to produce a two-step flange on the end of a tubular billet made of 6060 aluminum alloy. This cold metal forming process was designed based on numerical simulations and experimental tests. The effect of the basic technological parameters on metal flow was investigated and limitations of the process were identified. The experimental results confirmed the possibility of forming a two-step flange with a diameter that is approximately twice as big as the external diameter of the tubular billet.
The Influence of Extrusion Process on the Microstructure and Mechanical Properties of Magnesium Alloys
Authors: Bednarczyk I. , Kuc D. , Tomaszewska A. , Mrugała A.
Published: July 2017

The article presents the results of plastic shaping tests of AZ61 and WE43 alloys. There were both classic extrusion tests as well as extrusion tests of KOBO method. An assessment was made of the influence of extrusion process parameters on the mechanical properties and the structure of the alloys. On the basis of achieved results of mechanical properties for alloys AZ31 and WE43 the susceptibility of those alloys to plastic shaping was determined. Quantitative tests of structure assessment in case of alloys AZ61 and WE43 after extrusion with the use of KOBO method were conducted with the use of METILO program. It has been shown that extrusion AZ61, WE43 alloys method KOBO leads to considerable fragmentation of grains.
Using the Principles of Image Analysis in the Assessment of the Proportion of Retained Austenite in the Case Hardened Layers
Authors: Váňová P. , Sojka J. , Kulová T. , Jokešová K. , Purtátor P. , Spinu A.
Published: July 2017

Structures of carburized layers after the surface saturation process in gaseous, liquid or solid medium and after subsequent heat treatment (hardening and low-temperature tempering) consist mainly of high carbon plate martensite with a certain portion of retained austenite. The presence of retained austenite (RA) in carburized layers is mostly considered as undesirable because it decreases hardness of the hardened layer and furthermore, a spontaneous conversion to a ferritic-carbide mixture of a bainitic type, accompanied by a change of properties, dimensional instability and the local increase in internal stress with the possible formation of cracks, can occur. The proportion of retained austenite is, therefore, a significant characteristics of the quality of hardened layers. This work deals with the evaluation of the volume fraction of retained austenite in carburized layers using image analysis on metallographic images.
Microstructural Aspects of Bifocal Laser Welding of Trip Steels
Authors: Grajcar A. , Grzegorczyk B. , Różański M. , Stano S. , Morawiec M.
Published: July 2017

This work is concerned with comparative tests involving single-spot and twin-spot laser welding of thermomechanically rolled TRIP steel. The welding tests were carried out using keyhole welding and a solid state laser. In the case of twin-spot laser beam welding, the power distribution of beams was 50%:50%. The changes in macro- and microstructures were investigated using light and scanning electron microscopy. Three main zones subjected to the tests included the fusion zone, the heat affected zone and the intercritical heat affected zone (transition zone between the base material and the HAZ). Special attention was paid to the effect of various thermal cycles on the microstructure of each zone and on martensite morphology. The tests involved hardness measurements carried out in order to investigate the effect of different microstructures on mechanical properties of welds.
Studies on the Corrosion Resistance of Laser-Welded Inconel 600 and Inconel 625 Nickel-Based Superalloys
Authors: Łyczkowska K. , Michalska J.
Published: July 2017

The paper presents the results of the electrochemical corrosion tests of Inconel 600 and Inconel 625 laser-welded superalloys. The studies were conducted in order to assess the resistance to general and pitting corrosion in 3.5% NaCl solution. It was found that Inconel 600 possesses good corrosion resistance, however Inconel 625 is characterized by a greater resistance to general and also to pitting corrosion of the weld as well as the base metal.
Investigation of La3+ Doping Effect on Piezoelectric Coefficients of BLT Ceramics
Authors: Wodecka-Dus B. , Kozielski L. , Erhart J. , Pawełczyk M. , Radoszewska D. , Adamczyk M. , Bochenek D.
Published: July 2017

Effects of La3+admixture in barium lanthanum titanate (BLT) ceramics system with colossal permittivity on performance of prospective piezoelectric cold plasma application were studied. Usage of cold atmospheric pressure plasma appears promising in terms of industrial and healthcare applications. Performed investigation provide consistent evaluation of doping lanthanum amount on piezoelectric coefficients values with simultaneous capability of charge accumulation for effective plasma generation. Modification of ferroelectric materials with heterovalent ions, however with the lower radii than the original atoms, significantly affects their domain mobility and consequently electromechanical properties. To determine the piezoelectric coefficients, the resonance-antiresonance method was implemented, and values of piezoelectric and dielectric parameters were recorded. Finally the results indicated that addition of 0.4 mol.% of La3+ions to the ceramic structure maximally increased the values of piezoelectric coefficient tod33= 20 pC/N and to huge dielectric constant toε33T= 29277.
Decoring Behaviour of Chosen Moulding Materials with Alkali Silicate Based Inorganic Binders
Authors: Conev M. , Vasková I. , Hrubovčáková M. , Hajdúch P.
Published: July 2017

This paper contains basic information about new processes for cores for cylinder heads production with alkali silicate based inorganic binders. Inorganic binders are coming back to the foreground due to their ecologically friendly nature and new technologies for cores production and new binder systems were developed. Basically these binder systems are modified alkali silicates and therefore they carry some well-known unfavourable properties with their usage. To compensate these disadvantages, the binder systems are working with additives which are most often in powder form and are added in the moulding material. This paper deals with decoring behaviour of different moulding sands as well as the influence of chosen additives on knock-out properties in laboratory terms. For this purpose, specific methods of specimen production are described. Developed methods are then used to compare decoring behaviour of chosen sands and binder systems.
Characterization of Cu and Ni Nano-Fluids Synthesized by Pulsed Wire Evaporation Method
Authors: Kim Hyo-Seob , Yilmaz Fikret , Dharmaiah Peyala , Lee Dong-Jin , Lee Tae-Haeng , Hong Soon-Jik
Published: July 2017

In the present work, Cu and Ni nanofluids were synthesized using the pulsed wire evaporation (PWE) method in the different aqueous medias, namely (ethanol and ethylene glycol), and the effects of the aqueous media on the dispersion state, stability, and particle size of nanoparticles were studied. The size and morphology of synthesized nano-particles were investigated by transmission electron microscopy (TEM). Also, the dispersion stability of the nanofluids was evaluated by turbiscan analysis. The TEM results showed that the nano-particles were spherical in shape, and the average particle size was below 100 nm. The average particle size of the Cu nano-particles was smaller than that of Ni, which was attributed to a difference in the specific sublimation energy of the elements. Moreover, ethylene glycol (EG) exhibited higher suspension stability than ethanol. Finally, the dispersion stability of Cu@EG displayed the highest value due to lower particle size and greater viscosity.