bluuebunny/crossref_metadata_2025 huggingface dataset:
The mutational landscape of Burkitt-like lymphoma with 11q aberration is distinct from that of Burkitt lymphoma
Authors: Wagener Rabea , Seufert Julian , Raimondi Francesco , Bens Susanne , Kleinheinz Kortine , Nagel Inga , Altmüller Janine , Thiele Holger , Hübschmann Daniel , Kohler Christian W. , Nürnberg Peter , Au-Yeung Rex , Burkhardt Birgit , Horn Heike , Leoncini Lorenzo , Jaffe Elaine S. , Ott German , Rymkiewicz Grzegorz , Schlesner Matthias , Russell Robert B. , Klapper Wolfram , Siebert Reiner
Published: December 2018

The new recently described provisional lymphoma category Burkitt-like lymphoma with 11q aberration comprises cases similar to Burkitt lymphoma (BL) on morphological, immunophenotypic and gene-expression levels but lacking the IG-MYC translocation. They are characterized by a peculiar imbalance pattern on chromosome 11, but the landscape of mutations is not yet described. Thus, we investigated 15 MYC-negative Burkitt-like lymphoma with 11q aberration (mnBLL,11q,) cases by copy-number analysis and whole-exome sequencing. We refined the regions of 11q imbalance and identified the INO80 complex-associated gene NFRKB as a positional candidate in 11q24.3. Next to recurrent gains in 12q13.11-q24.32 and 7q34-qter as well as losses in 13q32.3-q34, we identified 47 genes recurrently affected by protein-changing mutations (each ≥3 of 15 cases). Strikingly, we did not detect recurrent mutations in genes of the ID3-TCF3 axis or the SWI/SNF complex that are frequently altered in BL, or in genes frequently mutated in germinal center–derived B-cell lymphomas like KMT2D or CREBBP. An exception is GNA13, which was mutated in 7 of 15 cases. We conclude that the genomic landscape of mnBLL,11q, differs from that of BL both at the chromosomal and mutational levels. Our findings implicate that mnBLL,11q, is a lymphoma category distinct from BL at the molecular level.
The use of chest magnetic resonance imaging in interstitial lung disease: a systematic review
Authors: Romei Chiara , Turturici Laura , Tavanti Laura , Miedema Jelle , Fiorini Sara , Marletta Massimo , Wielopolski Piotr , Tiddens Harm , Falaschi Fabio , Ciet Pierluigi
Published: December 2018

Thin-slices multi-detector computed tomography (MDCT) plays a key role in the differential diagnosis of interstitial lung disease (ILD). However, thin-slices MDCT has a limited ability to detect active inflammation, which is an important target of newly developed ILD drug therapy. Magnetic resonance imaging (MRI), thanks to its multi-parameter capability, provides better tissue characterisation than thin-slices MDCT.

Our aim was to summarise the current status of MRI applications in ILD and to propose an ILD-MRI protocol. A systematic literature search was conducted for relevant studies on chest MRI in patients with ILD.

We retrieved 1246 papers of which 55 original papers were selected for the review. We identified 24 studies comparing image quality of thin-slices MDCT and MRI using several MRI sequences. These studies described new MRI sequences to assess ILD parenchymal abnormalities, such as honeycombing, reticulation and ground-glass opacity. Thin-slices MDCT remains superior to MRI for morphological imaging. However, recent studies with ultra-short echo-time MRI showed image quality comparable to thin-slices MDCT. Several studies demonstrated the added value of chest MRI by using functional imaging, especially to detect and quantify inflammatory changes.

We concluded that chest MRI could play a role in ILD patients to differentiate inflammatory and fibrotic changes and to assess efficacy of new ILD drugs.
Semiglobal viscoacoustic full-waveform inversion
Authors: da Silva Nuno V. , Yao Gang , Warner Michael
Published: December 2018

Full-waveform inversion deals with estimating physical properties of the earth’s subsurface by matching simulated to recorded seismic data. Intrinsic attenuation in the medium leads to the dispersion of propagating waves and the absorption of energy — media with this type of rheology are not perfectly elastic. Accounting for that effect is necessary to simulate wave propagation in realistic geologic media, leading to the need to estimate intrinsic attenuation from the seismic data. That increases the complexity of the constitutive laws leading to additional issues related to the ill-posed nature of the inverse problem. In particular, the joint estimation of several physical properties increases the null space of the parameter space, leading to a larger domain of ambiguity and increasing the number of different models that can equally well explain the data. We have evaluated a method for the joint inversion of velocity and intrinsic attenuation using semiglobal inversion; this combines quantum particle-swarm optimization for the estimation of the intrinsic attenuation with nested gradient-descent iterations for the estimation of the P-wave velocity. This approach takes advantage of the fact that some physical properties, and in particular the intrinsic attenuation, can be represented using a reduced basis, substantially decreasing the dimension of the search space. We determine the feasibility of the method and its robustness to ambiguity with 2D synthetic examples. The 3D inversion of a field data set for a geologic medium with transversely isotropic anisotropy in velocity indicates the feasibility of the method for inverting large-scale real seismic data and improving the data fitting. The principal benefits of the semiglobal multiparameter inversion are the recovery of the intrinsic attenuation from the data and the recovery of the true undispersed infinite-frequency P-wave velocity, while mitigating ambiguity between the estimated parameters.
Near-surface site investigation by seismic interferometry using urban traffic noise in Singapore
Authors: Zhang Yunhuo , Li Yunyue Elita , Zhang Heng , Ku Taeseo
Published: December 2018

We have evaluated a field test in the city of Singapore to assess the feasibility of the passive seismic survey for bedrock depth determination and to further investigate the optimal acquisition parameters. The ambient noise field, dominated by urban traffic noise, is recorded passively for the application of seismic interferometry. Spectral analysis indicates that the traffic-induced noise by local roads is concentrated between 3 and 25 Hz. We use multiple signal classification beamforming for wavefield direction of propagation analysis. We apply seismic interferometry to retrieve the surface-wave part of the Green’s functions, based on which surface-wave dispersion relations are extracted and further inverted for 1D S-wave velocity profiles. Subsequently, we compare the inversion results from seismic interferometry with borehole logs at multiple sites in Singapore and establish that the bedrock depths are well-determined using passive seismic methods within a maximum error of 3 m. By investigating the convergence of the crosscorrelograms, we ascertain that the best compromise of cost, efficiency, and accuracy for a passive site investigation in Singapore can be achieved in 15 min in the morning of a working day using an array as short as 30 m with six vertical geophones, although these parameters should be reinvestigated at other sites and other times. The success of this case study demonstrates that accurate near-surface site investigation can be achieved with faster acquisition, fewer receivers, and a smaller acquisition footprint compared with conventional methods, all of which improve the efficiency particularly in a highly developed urban environment.
Correlating geologic and seismic data with unconventional resource production curves using machine learning
Authors: Smith Ryan , Mukerji Tapan , Lupo Tony
Published: December 2018

Predicting well production in unconventional oil and gas settings is challenging due to the combined influence of engineering, geologic, and geophysical inputs on well productivity. We have developed a machine-learning workflow that incorporates geophysical and geologic data, as well as engineering completion parameters, into a model for predicting well production. The study area is in southwest Texas in the lower Eagle Ford Group. We make use of a time-series method known as functional principal component analysis to summarize the well-production time series. Next, we use random forests, a machine-learning regression technique, in combination with our summarized well data to predict the full time series of well production. The inputs to this model are geologic, geophysical, and engineering data. We are then able to predict the well-production time series, with 65%–76% accuracy. This method incorporates disparate data types into a robust, predictive model that predicts well production in unconventional resources.
Health Related Quality of Life (HRQOL) and its correlation with academic performance of medical students
Authors: Sarwar Shahid , Aleem Abdul , Nadeem Muhammad Arif
Published: December 2018

Objective: To determine health related quality of life (HRQOL) of medical students and its correlation with their academic performance.

Methods: Cross sectional study at Services Institute of Medical Sciences, included students of 4th and final year MBBS, who filled SF-36 proforma of HRQOL. Scores of 8-domains and of physical component and mental component summary were determined. Marks in all professional examinations were used to stratify students as high performers (≥ 70% marks) and average performing students (< 70%). HRQOL scores was correlated with academic performance using unpaired student’s t-test.

Results: Among 267 students included, mental health score (56.2±21.3) was lower than physical health component score (69.03±18.5). Role limitation due to emotional health (RE) (44.81), Vitality (VT) (54.19) and general health perception (GH) (58.89) had lower scores among 8domains of questionnaire. Female students had significantly lower scores in role limitation due to emotional problems (p value <0.04), vitality (<0.05), bodily pain (p value <0.05) and general health perception (p value<0.03) than male students. Physical health and role limitation due to physical health domains were better in high performing students.

Conclusion: Mental health of medical students is suboptimal, especially among female students. Students with better physical health have better academic performance.

How to cite this:Sarwar S, Aleem A, Nadeem MA. Health Related Quality of Life (HRQOL) and its correlation with academic performance of medical students. Pak J Med Sci. 2019;35(1):266-270. doi: https://doi.org/10.12669/pjms.35.1.147

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Comparison of mean pain scores for the patients with sub hepatic drainage to those without it after elective uncomplicated laparoscopic cholecystectomy
Authors: Nadeem Faisal , Khan Muhammad , Naz Faheem Ullah
Published: December 2018

Objective: The sub hepatic drain is often placed after laparoscopic cholecystectomy is considered to affect post operative infection, pain and sub hepatic collections. The objective of this study was to compare the degree of postoperative pain in patients with routine drainage with those without it after elective, uncomplicated laparoscopic cholecystectomy.

Methods: This randomized control trial (RCT) was done over six months from 9th June 2015 to 8th December 2015 at Military Hospital Rawalpindi. Sample calculated with WHO calculator and consecutive non probability random sampling used to divide 170 patients undergoing laparoscopic cholecystectomy in two groups. One group had routine sub hepatic drain and other didn’t. Degree of postoperative pain was assessed according to VISUAL ANALOGUE SCALE by duty doctor at 24 hours. Data was collected and analyzed applying chi square test and p value was <0.05 considered statistically significant.

Results: Our results demonstrated that intensity of post operative pain in routine drainage group is higher as compared to non drainage group after elective, uncomplicated laparoscopic cholecystectomy.

Conclusion: Routine placement of sub hepatic drain in elective uncomplicated laparoscopic cholecystectomy should be avoided to reduce post-operative pain.

How to cite this:Nadeem F, Khan MR, Naz FU. Comparison of mean pain scores for the patients with sub hepatic drainage to those without it after elective uncomplicated laparoscopic cholecystectomy. Pak J Med Sci. 2019;35(1):226-229. doi: https://doi.org/10.12669/pjms.35.1.224

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Is there a relationship between serum vaspin levels and insulin resistance in chronic renal failure?
Authors: Demir Can , Dogantekin Akif , Gurel Ali , Aydin Suleyman , Celiker Huseyin
Published: December 2018

Objective: Chronic kidney disease (CKD) patients have insulin secretion disorders and resistance to insulin effects, that is responsible for the development of cardiovascular events. Vaspin is an adipocytokine that regulates glucose and lipid metabolism. We aimed to determine the serum vaspin levels and its relationship with insulin resistance in CKD patients.

Methods: In the study groups, serum vaspin levels, anthropometric parameters and routine blood tests were measured. The serum vaspin levels were examined by the enzyme-linked immunosorbent assay (ELISA) and insulin resistance was determined by the homeostasis model assessment of insulin resistance (HOMA-IR) formula.

Results: The serum vaspin, HOMA-IR index and insulin levels were observed significantly high in the CKD group in comparison with the control group. No correlation was found between the serum vaspin level and the anthropometric and metabolic values. The serum vaspin level was positively correlated with the fasting plasma glucose and age but without statistical significance.

Conclusion: Insulin resistance and hyperinsulinemia contribute to the development of cardiovascular complications in CKD. We consider that the increase in the serum vaspin level is a consequence of the reduced renal excretion in the CKD and increases in response to insulin resistance.

How to cite this:Demir C, Dogantekin A, Gurel A, Aydin S, Celiker H. Is there a relationship between serum vaspin levels and insulin resistance in chronic renal failure? Pak J Med Sci. 2019;35(1):230-235. doi: https://doi.org/10.12669/pjms.35.1.96

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Recent advances in understanding Propionibacterium acnes (Cutibacterium acnes) in acne
Authors: Platsidaki Eftychia , Dessinioti Clio
Published: December 2018

The skin commensal Propionibacterium acnes, recently renamed Cutibacterium acnes, along with the other major pathophysiological factors of increased seborrhea, hyperkeratinization of the pilosebaceous unit, and inflammation, has long been implicated in the pathogenesis of acne. Recent advances have contributed to our understanding of the role of P. acnes in acne. Although there are no quantitative differences in P. acnes of the skin of patients with acne compared with controls, the P. acnes phylogenic groups display distinct genetic and phenotypic characteristics, P. acnes biofilms are more frequent in acne, and different phylotypes may induce distinct immune responses in acne. P. acnes plays a further important role in the homeostasis of the skin’s microbiome, interacting with other cutaneous commensal or pathogenic microorganisms such as Staphylococcus epidermidis, Streptococcus pyogenes, and Pseudomonas species. In the era of increasing antimicrobial resistance, the selection of acne treatment targeting P. acnes and the prevention of antibiotic resistance play a key role in improving outcomes in acne patients and public health.
Generation of a cleaned dataset listing Avon Longitudinal Study of Parents And Children peer-reviewed publications to 2015
Authors: Butters Oliver , Ismail Amran , Thompson Sue , Wilson Rebecca
Published: December 2018

Birth cohort studies generate huge amounts of data, and as a consequence are a source of many peer reviewed publications. We have taken the list of publications from the Avon Longitudinal Study of Parents and Children UK birth cohort, filtered, de-duplicated and cleaned it to generate a bibliographic research data set. This dataset could be used for accurate reporting and monitoring of the impact of the study as well as bibliometric research.
A Matter of Equality: Linear Pricing in Combinatorial Exchanges
Authors: Bichler Martin , Fux Vladimir , Goeree Jacob
Published: December 2018

Combinatorial exchanges that allow for package offers to address nonconvexities in demand or supply typically employ linear and anonymous prices because they are simple, tractable, and fair. Despite their prevalence, linear anonymous prices do not necessarily correspond to Walrasian competitive equilibrium prices in such settings, and their impact is not well understood. This paper is the first to analyze the effect of different pricing rules on the efficiency of combinatorial exchanges, using both analytic methods and numerical experiments. Our analysis is motivated by a combinatorial fishery-rights exchange designed to reform the fishing industry in New South Wales (NSW), Australia. We find that when linearity and anonymity are required for only one side of the market, the average efficiency loss is negligible. In contrast, with a single linear price vector for both sides, the efficiency loss is substantial, especially when the market is small. In a formal model, we show that efficiency losses decrease when the number of buyers grows or the size of the submitted packages decreases. Besides the reform of the NSW fishing industry, our results have important implications for other cap-and-trade programs as well as other industries where demand or cost complementarities play a role.
Who Wants Consumers to Be Informed? Facilitating Information Disclosure in a Distribution Channel
Authors: Hao Lin , Tan Yong
Published: December 2018

We investigate a retailer’s and a supplier’s incentive to facilitate information disclosure, i.e., consumer learning of their true product valuation, under two popular supply chain contracts, i.e., the agency pricing model and the wholesale pricing model. Our results show that when a product has medium or high dispersion in its consumers’ true valuation distribution and the degree of information disclosure before facilitation is moderate, two parties might have opposing interests as to more information disclosure. Specifically, in the agency pricing model, the revenue sharing mechanism leads the supplier to benefit, but the retailer to suffer, from more information disclosure. In the wholesale model, potential misalignment of interests as to more information disclosure disappears if the demand is linear. Double marginalization absorbs influence of two parties’ marginal cost discrepancy and eventually tunes the two parties’ margin proportional to each other. If the demand is log-concave and derived from common valuation distributions such as normal or logistic distributions, misalignment reappears in the wholesale model, but interestingly, the retailer benefits and the supplier suffers from more disclosure, which is opposite to the misalignment result in the agency model under the same log-concave demand. Our results suggest that information disclosure facilitation has a different interplay with the revenue sharing mechanism in the agency model than with double marginalization in the wholesale model.

The online appendix is available at https://doi.org/10.1287/isre.2017.0770 .
What Makes a Decision Strategic? Strategic Representations
Authors: Csaszar Felipe A.
Published: December 2018

This paper delves into the effects that strategic representations have on firm performance. It does so in four ways. First, it describes different types of representations—internal, external, and distributed—and it points to their pervasiveness in strategy. Second, it presents a framework to study the effects of these representations on firm performance and shows how several strategy theories can be mapped into this framework. Third, it provides three detailed illustrations of how this framework can be used to address important questions in strategy; namely, what are the antecedents of strategic foresight, how the simplicity or complexity of representations affects firm performance, and how to incorporate the role of managerial cognition into the resource-based view. Fourth, it proposes a research agenda to further the study of the representation–performance link. Overall, this paper proposes that studying strategic representations is paramount because the success of strategies—and the realism of the strategy field—hinges on understanding how representations affect performance. Strategic representations, thus, are a central element of “what makes a decision strategic.”
Category Strategy for Firm Advantage
Authors: Pontikes Elizabeth G.
Published: December 2018

The decision of where to position in a market is crucial to firm success. Most strategy research focuses on either choosing an attractive industry or firm-level differences that lead to sustained advantage. In both approaches, how the industry or submarket is defined is typically taken as an exogenous constraint. But firms also can shape market categories in ways that advantage the firm. In this article, I draw on research in strategy, sociology, and cognitive science to show category strategy is foundational to strategic decisions around competitive positioning. Cognitively, the market categories people use define the playing field for firms, as they partially determine competitive sets and evaluation standards. Sociologically, definitions of market categories are subject to social influence. This means strategic decisions about how to position within the market affect how market categories are defined and evolve, which firms can (and should) use to achieve long-term value.
Broadening the Frame: How Behavioral Strategy Redefines Strategic Decisions
Authors: Lovallo Dan , Sibony Olivier
Published: December 2018

Using a behavioral strategy lens, we introduce a framework to categorize and improve strategic decisions. The typology uses two dimensions, salience and framing, while considering whether decisions truly produce strategic consequences. This yields six relevant types of decisions. “Archetypal” decisions are single strategic decisions that are labeled as strategic. “Programmatic” decisions are series of multiple decisions that are accurately labeled as strategic. “Hyped” and “habitual” decisions are single and multiple decisions, respectively, that are labeled as strategic but do not produce strategic consequences. Finally, “hidden” decisions are single decisions that are not labeled as strategic but do have strategic consequences; and “process driven” decisions are sets of multiple decisions that are not labeled as strategic but do, in aggregate, produce strategic outcomes. For each type of decision, we discuss pitfalls and suggest potential remedies.
Screw head plugs increase the fatigue strength of stainless steel, but not of titanium, locking plates
Authors: Hung L-W. , Chao C-K. , Huang J-R. , Lin J.
Published: December 2018

Objectives

Screw plugs have been reported to increase the fatigue strength of stainless steel locking plates. The objective of this study was to examine and compare this effect between stainless steel and titanium locking plates.

Methods

Custom-designed locking plates with identical structures were fabricated from stainless steel and a titanium alloy. Three types of plates were compared: type I unplugged plates; type II plugged plates with a 4 Nm torque; and type III plugged plates with a 12 Nm torque. The stiffness, yield strength, and fatigue strength of the plates were investigated through a four-point bending test. Failure analyses were performed subsequently.

Results

For stainless steel, type II and type III plates had significantly higher fatigue strength than type I plates. For titanium, there were no significant differences between the fatigue strengths of the three types of plates. Failure analyses showed local plastic deformations at the threads of screw plugs in type II and type III stainless steel plates but not in titanium plates.

Conclusion

The screw plugs could increase the fatigue strength of stainless steel plates but not of titanium plates. Therefore, leaving screw holes open around fracture sites is recommended in titanium plates. Cite this article: L-W. Hung, C-K. Chao, J-R. Huang, J. Lin. Screw head plugs increase the fatigue strength of stainless steel, but not of titanium, locking plates. Bone Joint Res 2018;7:629–635. DOI: 10.1302/2046-3758.712.BJR-2018-0083.R1.
Management of symptomatic degenerative low-grade lumbar spondylolisthesis
Authors: Evans Nick , McCarthy Michael
Published: December 2018

Degenerative low-grade lumbar spondylolisthesis is the most common form of spondylolisthesis. The majority of patients are asymptomatic and do not require surgical intervention. Symptomatic patients present with a combination of lower back pain, radiculopathy and/or neurogenic claudication and may warrant surgery if non-operative measures fail. There is widespread controversy regarding the indications for surgery and appropriate treatment strategies for patients with this type of spondylolisthesis. This article provides a comprehensive evidence-based review of the available literature to support the management of degenerative low-grade spondylolisthesis.

Cite this article: EFORT Open Rev 2018;3:620-631. DOI: 10.1302/2058-5241.3.180020.
INTERVAL-VALUED NEUTROSOPHIC AHP WITH POSSIBILITY DEGREE METHOD
Authors: Bolturk Eda , Kahraman Cengiz
Published: December 2018

The Analytic Hierarchy Process (AHP) is one of the most widely used methods in multi criteria decision making (MCDM) in many areas. The method has been extended with hesitant fuzzy sets, intuitionistic fuzzy sets, neutrosophic sets, and type -2 fuzzy sets etc. These extended methods can consider the vagueness in decision making problems through different definitions of membership functions. Each of them tries to increase the effectiveness of AHP under uncertainty. Decision makers can fully express their judgments through neutrosophic sets (NS) since NS are based on three independent parameters, truthiness (T), indeterminancy (I) and falsity (F), providing a distinction between a ‘relative truth’ and an ‘absolute truth’. In this paper, we employ the possibility degree method for ranking interval numbers in our neutrosophic AHP approach by utilizing NS’ representation power. Besides, we employ interval-valued NS since a larger domain for the definition of T, I, and F is provided. Pairwise comparison matrices can be filled in by using linguistic terms such as weakly more important, moderately more important or extremely important. Then, we obtain the relative importance degrees of criteria by using the possibility degree method. In order to show the effectiveness of our method, a MCDM application is given in energy planning. Comparative and sensitivity analyses are also presented in the paper.
MCDM in Turkey a Second Time
Authors: Topcu Ilker
Published: December 2018

The preparations for the 25th International Conference on Multiple Criteria Decision Making (MCDM 2019) are going on. This time it will take place at Istanbul Technical University, Istanbul, Turkey from June 16th to June 21st, 2019. It would be the second conference that will be held in Turkey; the first one was the 15th International Conference which was held in Ankara, Turkey in 2000. Therganizing committee is very pleased to host you again in Turkey.
A COOPERAÇÃO NO CONTEXTO DAS TRANSFORMAÇÕES SOCIAIS E DO DESENVOLVIMENTO LOCAL: O CASO DA ROTA DAS SALAMARIAS – RS
Authors: COLET DANIELA SIQUEIRA , MOZZATO ANELISE REBELATO
Published: December 2018

Este artigo tem por objetivo analisar as ações de cooperação existentes entre os proprietários das pequenas propriedades rurais na Rota das Salamarias - RS, verificando as transformações sociais e a importância de tal aglomerado produtivo para com o desenvolvimento local. Para tanto, realizou-se uma pesquisa exploratória, do tipo multicaso e com abordagem qualitativa dos dados. Os resultados revelam que a rota em questão realiza ações de cooperação, confirmando que há intensa participação, interação, solidariedade e confiança entre os participantes, impactando em diferentes transformações sociais. Assim, a participação na rota possibilitou o desenvolvimento local não só do ponto de vista econômico, mas também, os recursos naturais foram preservados, bem como as relações sociais melhoradas, proporcionando maior qualidade de vida aos envolvidos.
REFLEXO DA QUALIDADE DE GOVERNANÇA CORPORATIVA NO PROCESSO DE AVALIAÇÃO DE EMPRESAS
Authors: SILVA CARLA CAROLINNE DOS SANTOS , MARTINS ORLEANS SILVA
Published: December 2018

Este estudo analisou o reflexo da qualidade de Governança Corporativa sobre o processo de avaliação de empresas. Com base na Teoria da Agência, foi estimado um Índice de Qualidade de Governança Corporativa (IQGC) que foi incluído no modelo de Ohlson (1995) para verificar sua relevância no valor de 213 companhias negociadas na BM&FBOVESPA entre 2010 e 2013. Para o cálculo do IQGC foram quantificadas sete dimensões representativas de boa qualidade de governança e ponderadas por Análise de Componentes Principais. Sua relação com a valoração das empresas foi realizada por regressões com dados em painel. Os resultados permitiram inferir que o IQGC é value relevant, pois sua inclusão no modelo estimado refletiu no aumento de seu coeficiente de determinação. Destaca-se como contribuições a inserção da Assimetria de Informação como dimensão do IQGC e as evidências de que a qualidade de Governança Corporativa é refletida na avaliação das empresas no Brasil.Palavras-chave: Governança Corporativa; Índice; Avaliação de empresas; Valor; Value Relevance.
SISTEMAS DE GESTÃO EMPRESARIAL CONTRIBUEM PARA O ISOMORFISMO ORGANIZACIONAL?
Authors: Saldanha Leandro Ripoll , Nodari Cristine Hermann , Salvagni Julice , Guimarães Luciana Gondim de Almeida
Published: December 2018

No mercado, o acrônimo Enterprise Resourcing Planning (ERP) refere-se a uma categoria de sistemas que auxiliam as organizações no controle de suas operações diárias. O isomorfismo organizacional, por sua vez, é um processo que força as empresas a se tornarem semelhantes em um ecossistema que apresenta condições ambientais similares. Neste contexto, sistemas de gestão empresarial tornam-se geradores e propagadores de isomorfismo organizacional, sendo este o alvo desta pesquisa. A partir de um estudo de caso realizado no segmento de financial services da TOVTS observou-se que o isomorfismo normativo é oriundo das agências legais que regem o segmento financeiro. Já o isomorfismo coercitivo verificou-se decorrer da força do mercado, ou seja, pela influência no desenvolvimento de sistemas. O isomorfismo mimético também foi evidenciado, principalmente pelo fato de empresas menores ou iniciantes utilizarem sistemas que foram desenvolvidos e baseados nas práticas de empresas já estabelecidas e de maior maturidade processual.
GESTÃO DE EQUIPES DE ALTO DESEMPENHO: ABORDAGENS E DISCUSSÕES RECENTES
Authors: Liboreiro Karla Rocha , Borges Renata Simões Guimarães e
Published: December 2018

As equipes de alto desempenho são formações típicas das organizações modernas. Apesar de muita informação disponível sobre gestão de pessoas, pouco conhecimento é disseminado sobre práticas efetivas e os impactos do compartilhamento ativo de experiências e conhecimentos que possibilitam um desempenho superior e inovador de determinadas equipes. O objetivo deste estudo é apresentar e a complementariedade de conceitos e práticas de gestão de equipes em diferentes abordagens. A revisão da literatura busca compreender além dos conceitos, a integração entre eles e as características das equipes de alto desempenho desde a sua formação até sua maturidade. As equipes podem ainda apresentar baixo desempenho ao desenvolverem comportamentos disfuncionais, o que aponta para práticas de gestão direcionadas. As discussões recentes sobre o tema, mostram o papel da gestão de equipes diante da exigência por adaptabilidade diante às mudanças organizacionais. Este estudo aponta possibilidades de pesquisas futuras para a inovação na gestão de equipe.
DIAGNÓSTICO DO PROGRAMA DE COLETA SELETIVA NA ZONA LESTE NA CIDADE DE SÃO PAULO SOB A ÓTICA DAS COOPERATIVAS, PODER PÚBLICO E MUNÍCIPES
Authors: Luz Eliana Gonçalves da , Paschoalin Filho João Alexandre , Faria Ana Cristina de , Carvalho David de
Published: December 2018

Este trabalho identifica a visão de gestor público, líderes de cooperativas de reciclagem e munícipes acerca da coleta seletiva na Zona Leste de São Paulo, de forma a entender dificuldades enfrentadas pelos envolvidos, bem como causas que justificam os baixos volumes de material coletado. Para a obtenção dos dados foram efetuadas entrevistas, que foram gravadas e, posteriormente, transcritas. Foram entrevistados: um representante da prefeitura ligado a programas de coleta seletiva, dois líderes de Cooperativas de Material Reciclável atuantes na Zona Leste e 10 munícipes. Osresultados demonstraram que o programa de coleta seletiva na cidade de São Paulo ainda é falho; já que nem o poder público, nem as cooperativas e; muito menos a população; estão satisfeitos e apontaram diversas falhas.
AVALIAÇÃO ECONÔMICA DE UM SISTEMA DE TRAMENTO DE RESÍDUOS DA SUINOCULTURA CONTENDO BIODIGESTORES TUBULARES
Authors: Ricardo Célio Moreira , Campos Alessandro Torres , Marin Diego Bedin , Veloso Alessandro Vieira , Mattioli Matheus Campos
Published: December 2018

Nos últimos anos, a suinocultura tem causado grande ônus ambiental devido ao manejo incorreto dos resíduos. Contudo, o processo de biodigestão anaeróbia, por meio de biodigestores, tem se constituído uma tecnologia interessante quando se busca solução para os problemas ambientais, que são evidenciados nas águas, ar e solo, além de produzir biogás e biofertilizante para as áreas rurais. No presente trabalho, objetivou-se desenvolver uma análise econômica de um sistema de tratamento de resíduos da suinocultura, contendo biodigestores tubulares, bem como descrever a simulação de um cenário a partir da venda de energia elétrica para as concessionárias de distribuição. Na metodologia utilizada para a avaliação econômica, compuseram-se o valor presente líquido, a taxa interna de retorno, a relação benefício custo e o período de recuperação do capital simples e econômico. Na análise econômica, observou-se que o valor presente líquido foi de R$17.210,51. O percentual estimado para taxa interna de retorno é de 7% a.a., que foi 1% superior à taxa de atratividade mínima. A relação benefício custo, estimada em 1,42, é considerada alta para este tipo de investimento, representando uma eficiência econômica de 42%. O período de recuperação do capital investido simples foi de sete anos e o período de recuperação do capital econômico foi estimado em oito anos, tempo compatível para o nível de investimento. A avaliação econômica do sistema permitiu concluir que o projeto é economicamente atrativo e a possibilidade da venda de eletricidade para a concessionária de energia cria um cenário favorável nos aspectos econômicos, ambientais, sociais e agronômicos.
SOYBEAN CULTURE UNDER SOIL MANAGEMENT AND SOWING SYSTEMS
Authors: Santana Ormond Antonio Tassio , Polizel Analy Castilho , Menezes Patricia Candida , Lima Mauricio Apolônio , Mion Renildo Luiz
Published: December 2018

Modern agriculture longs to increase grain yield without the necessity of opening new areas. In order to do that, techniques such as line spacing manipulation and plant density are being studied with the intention to obtain higher productivity. The aim of this study was to evaluate the influence of different soil management and sowing systems on the Asian rust severity and on the agronomic characteristics of the soybean. The experimental design was a randomized complete block design with 3x3 matrices, corresponding to three soil management systems and three types of soybean sowing, with four replications. This methodology achieved a total of 36 experimental plots shaped by 4 meters wide and 10 meters long, totalizing an area of 40 m2. The interaction between direct and densified sowing obtained less severity of Asian rust and showed a tendency to raise plant's height at flowering, maturation and insertion of the first pod and to increase plants' population and productivity.
DESEMPENHO AGRONÔMICO DE CULTIVARES DE BANANAS EM DOIS CICLOS PRODUTIVOS EM TANGARÁ DA SERRA-MT
Authors: Santos Lima Emerson Correa , Junges dos Santos Paulo Ricardo , Krause Willian , Garbúgio Egídio , Santi Adalberto
Published: December 2018

O objetivo desse trabalho foi avaliar o desempenho agronômico de cultivares de bananas em dois ciclos produtivos em Tangará da Serra-MT. O experimento foi realizado na unidade experimental da Universidade do Estado do Mato Grosso, no campus de Tangará da Serra (MT). Foram avaliadas cinco cultivares do grupo Cavendish (Zelig, Willians, Epagri, IAC 2001, Corupá), três do grupo Prata (Galil 07, Galil 18, Japira), três do grupo Maçã (Catarina, Princesa, Tropical) e uma do grupo Terra (D’ Angola). O experimento foi realizado no delineamento experimental de blocos casualizados com três repetições e três plantas por parcelas. A caracterização do desenvolvimento e rendimento das cultivares foi realizada com as seguintes avaliações: número de dias até a colheita (NDC); massa do cacho (MC); número de pencas (NP); comprimento médio dos frutos (CF); diâmetro médio dos frutos (DF); massa da penca (MP); número de frutos por penca (NFP); massa média dos frutos (MF) e produtividade estimada (PROD). Com base no desempenho agronômico em dois ciclos produtivos na região de Tangará da Serra- MT, pode-se determinar que as cultivares Epagri e Willians, pertencentes ao grupo Cavendish, são as mais indicadas para o cultivo.
JORNADA DIÁRIA DE TRABALHO COMO CRITÉRIO DE DIMENSIONAMENTO ECONÔMICO PARA SISTEMAS DE IRRIGAÇÃO POR PIVÔ CENTRAL
Authors: Leite Caio Vinicius , Alves Júnior José , Vicente Marcelo Rossi , Evangelista Adão Wagner Pego , Casaroli Derblai
Published: December 2018

Considerando a relevância da irrigação por sistema de pivô central no Brasil e sua constante expansão, especialmente na Região Centro-Oeste, este trabalho buscou avaliar critérios de dimensionamento de pivô central que minimizem o custo total da irrigação por meio da otimização de sua vazão específica. Tendo em vista que a energia é um dos principais custos da irrigação e que a adequação tarifária permite redução dos custos com este insumo em função das diferentes modalidades de tarifas existentes, foi proposta uma metodologia em que diferentes jornadas diárias de operação foram avaliadas, a fim de se encontrar aquela que gere o menor custo total, de forma a equilibrar os custos de energia com os custos de implantação de um pivô central. Os resultados mostraram que o custo total mínimo foi obtido para o menor diâmetro da linha lateral, 6 5/8”, e maior jornada diária de trabalho, 24 h d-1, o que leva a uma menor vazão específica (0,822 L s-1 ha-1), considerando a possibilidade de enquadramento no subgrupo B2 Rural. Com o enquadramento em tarifa horo sazonal, o menor custo anual total foi obtido para o maior diâmetro de linha lateral, 8”, jornada de trabalho de 21 h d-1 e vazão específica de 0,939 L s-1 ha-1, sendo as tarifas Azul e Verde mais vantajosas do que a convencional.
Creativity in Cantonese operatic singing: Analysis of excerpts from Hu Bu Gui by three artists as examples
Authors: Leung Bo-Wah
Published: December 2018

Cantonese opera is one of the most representative traditional art forms in Hong Kong; since the nineteenth century, numerous artists have established their own personal singing styles. Similarly, audiences have been enchanted with the art form’s creativity. However, in recent years, artists in Hong Kong have tended to merely imitate their predecessors, rather than striving to develop their own styles. This study aims to explore the attributes leading to the establishment of personal style. It firstly reviews literature about creativity in psychology as well as socio-historical phenomenon of Cantonese opera in Hong Kong, followed by an analysis of two Aria Type excerpts sung by three eminent artists, in order to explore the creative elements of some well-established personal styles. Findings suggest that a keen competitive environment among artists with a knowledgeable and demanding audience may help artists to determine in striving for development of personal styles, which is, in essence, ‘imitation with flexibility’.
A content analysis of the International Journal of Community Music, 2008–18
Authors: Rohwer Debbie Ann
Published: December 2018

The purpose of the current content analysis was to describe the publication characteristics found in the International Journal of Community Music from the first print issue in 2008 through 2018. Across the ten years, each of the 30 issues were coded for page length, types of articles, editorials, review board characteristics, single- and co-authored article details, repeat authors and author countries. Results showed that approximately half of the articles were research, with qualitative studies being the most common. Exemplars and position papers were the most common non-research articles. Adults were the most common age level addressed. Approximately three-quarters of the articles were single-authored and the United States was the most common country of publications. Conclusions address the strengths of the journal and future directions for community music writings, including expansion of topics, areas and article formats.
Massa óssea cortical e fraturas de fragilidade na Coleção de Esqueletos Identificados do séc. XXI
Authors: Perinha Andreia , Nogueira Catarina , Umbelino Cláudia , Silva Ana Maria , Cunha Eugénia , Curate Francisco
Published: December 2018

A osteoporose é uma patologia metabólica óssea com maior incidência nas mulheres pós-menopáusicas e nas camadas mais idosas das populações atuais. Caracteriza-se pelo decréscimo da massa e da resistência ósseas, com aumento subsequente do risco de fratura. No presente trabalho, propõe-se, como objetivo principal, a compreensão dos padrões epidemiológicos da perda de massa óssea cortical numa amostra de indivíduos pertencente à Coleção de Esqueletos Identificados do século XXI (CEI/XXI) e da sua relação com as fraturas de fragilidade. Foram analisados 136 indivíduos {F = 68; M= 68} pertencentes à CEI/XXI. Para a avaliação da perda de massa óssea procedeu-se  análise radiogramétrica do 2.º metacárpico. Verificou-se também a presença/ausência de fraturas de fragilidade (anca, úmero proximal, rádio distal e corpo vertebral). Os resultados obtidos sugerem que a perda de massa óssea está intimamente relacionada com o envelhecimento, sobretudo no sexo feminino. As fraturas de fragilidade são mais comuns nos indivíduos femininos e a idade aparenta serum fator de risco para a sua ocorrência, contrariamente ao que acontece nos indivíduos masculinos.
Um possível caso de doença óssea de Paget na Coleção de Esqueletos Identificados de Évora, Portugal (século XX)
Authors: Ribeiro Cheila , Relvado Cláudia , Fernandes Teresa
Published: December 2018

A doença óssea de Paget (DOP) é uma doença metabólica caracterizada pela remodelação óssea anómala, de etiologia desconhecida. O esqueleto em estudo pertence à Coleção de Esqueletos Identificados de Évora, sendo este do sexo feminino, com uma idade à morte de 88 anos, tendo falecido em 1987. Recorrendo à análise macroscópica, a olho nu, e radiológica, observaram-se várias alterações ósseas, destacando-se o espessamento e deformação das tábuas interna e externa do osso frontal, onde a morfologia lembrava pedra-pomes, bem como espessamentos nas regiões do vértex e do ínion e ainda a presença de um padrão radiológico de “algodão-lã” no díploe. Nos ossos longos, as alterações mais exuberantes ocorreram nas tíbias e nos fémures e resultaram do espessamento ósseo, conduzindo a contornos irregulares e encurvamento das diáfises, apresentando a tíbia direita uma forma de sabre muito acentuada. Radiologicamente, observou-se que estes ossos apresentavam o osso cortical com aspeto esclerótico. Os ossos coxais, o sacro e as vértebras lombares apresentavam formação de osso novo e porosidade generalizada. Nos coxais, estava presente um aumento da espessura na asa ilíaca. No diagnóstico diferencial, consideraram-se a osteomalacia, a DOP, a sífilis, a leontíase óssea e a hiperostose frontal interna. A DOP parece o diagnóstico mais provável, dada a combinação das lesões.
Los saladares de Fuerteventura (islas Canarias, España): caracterización biogeográfica, conservación y amenazas
Authors: Beato Bergua Salvador , Poblete Piedrabuena Miguel Ángel , Marino Alfonso José Luis
Published: December 2018

Se realiza una caracterización biogeográfica de los saladares de Fuerteventura (islas Canarias) a partir del reconocimiento de su distribución espacial en la isla y del estudio de los factores ecológicos, esto es, de los condicionantes geomorfológicos, climáticos y edáficos de los diferentes enclaves en los que se desarrollan y prosperan. Se examina también su relación con otras asociaciones vegetales y especialmente los efectos que el desarrollo urbano-turístico ha tenido en su evolución y estado de conservación, abordando las amenazas que se ciernen sobre tales formaciones y las medidas que se han adoptado institucionalmente para su preservación. Para ello se ha realizado un exhaustivo trabajo de campo, consistente en el recorrido completo de la franja costera majorera entre 2013 y 2017, el cual, combinado con la fotointerpretación y la realización de entrevistas, ha permitido la creación de una base de datos georreferenciada en el entorno de un SIG. Como resultado se ha elaborado una cartografía en la que se representan, entre otras, Zygophyllo fontanesii – Arthrocnemetum macrostachyi, Frankenio capitatae – Suaedetum verae y Halimiono portulacoidis – Salicornietum perennis, al tiempo que se detalla el estado y la dinámica actual de las diferentes comunidades.