bluuebunny/crossref_metadata_2025 huggingface dataset:
Analytics in Sports Medicine
Authors: Sikka Robby S. , Baer Michael , Raja Avais , Stuart Michael , Tompkins Marc
Published: February 2019

* Analytics are increasingly being used in sports medicine and throughout orthopaedics.

* Data collected by athletes and teams come in many forms, including wearable devices, smart apparel, and other modalities, and may include global positioning and accelerometry data, heart rate, and sleep data. There is increasing evidence to suggest that these data can help to direct injury prevention programs by identifying risk factors for injury in sports.

* Biometric data collected from these devices may be analyzed with software packages, with add-on features for analysis of specific metrics such as accelerometry.

* Ethical considerations regarding data collection, storage, and utilization have yet to be fully defined as data could be used by multiple parties with interests that may or may not coincide with the interests of the athlete.

* Health-care providers will be increasingly expected to interpret and utilize data that patients provide them regarding performance and activity level.

* At the time of writing, there were no valid algorithms, to our knowledge, for the use of devices to accurately predict sports-related injuries. Invalid algorithms may cause changes in training that may ultimately lead to injury, so cautious use of these devices is warranted.
Long-Term Survival of Retained Cementless Hip Stems at an Average of 13 Years After Isolated Cup Revision
Authors: Innmann Moritz M. , Peitgen David S. , Merle Christian , Bruckner Thomas , Gotterbarm Tobias , Moradi Babak , Streit Marcus R.
Published: February 2019

Background:

Cementless stems demonstrate excellent long-term survival, but little is known about the long-term survival rate of the stem after isolated cup revision. The aim of the present retrospective cohort study was to determine the long-term survival rate of cementless stems retained after prior cup revision.

Methods:

We reviewed the clinical and radiographic results of 119 total hip arthroplasties (THAs) utilizing a cementless, grit-blasted, tapered titanium femoral stem that were performed in 113 patients between January 1985 and December 1989. The mean age at the time of the primary THA was 52 years (range, 16 to 74 years) and the mean time between primary THA and cup revision was 13 years (standard deviation [SD], 6 years; range, 0 to 30 years). At the time of the latest follow-up, no patient was lost to follow-up, 36 patients representing 37 hips had died, and 11 hips in 11 patients had required stem revision. The mean follow-up was 13 years following cup revision (SD, 6 years; range, 0 to 28 years). A competing risk analysis was performed to estimate the survival of the stem after isolated cup revision, with death being the competing risk factor.

Results:

At 20 years after cup revision, the survival rate of retained stems was 89% (95% confidence interval [CI], 79% to 94%) for the end point of stem revision for any reason and 97% (95% CI, 91% to 99%) for the end point of stem revision for aseptic loosening.

Conclusions:

The long-term survival of cementless stems retained after cup revision was excellent. Well-fixed cementless stems should be retained during cup revision for aseptic loosening.

Level of Evidence:

Level IV. See Instructions for Authors for a complete description of levels of evidence.
Pain Coping Skills Training for Patients Who Catastrophize About Pain Prior to Knee Arthroplasty
Authors: Riddle Daniel L. , Keefe Francis J. , Ang Dennis C. , Slover James , Jensen Mark P. , Bair Matthew J. , Kroenke Kurt , Perera Robert A. , Reed Shelby D. , McKee Daphne , Dumenci Levent
Published: February 2019

Background:

Pain catastrophizing has been identified as a prognostic indicator of poor outcome following knee arthroplasty. Interventions to address pain catastrophizing, to our knowledge, have not been tested in patients undergoing knee arthroplasty. The purpose of this study was to determine whether pain coping skills training in persons with moderate to high pain catastrophizing undergoing knee arthroplasty improves outcomes 12 months postoperatively compared with usual care or arthritis education.

Methods:

A multicenter, 3-arm, single-blinded, randomized comparative effectiveness trial was performed involving 5 university-based medical centers in the United States. There were 402 randomized participants. The primary outcome was the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) Pain Scale, measured at baseline, 2 months, 6 months, and 12 months following the surgical procedure.

Results:

Participants were recruited from January 2013 to June 2016. In 402 participants, 66% were women and the mean age of the participants (and standard deviation) was 63.2 ± 8.0 years. Three hundred and forty-six participants (90% of those who underwent a surgical procedure) completed a 12-month follow-up. All 3 treatment groups had large improvements in 12-month WOMAC pain scores with no significant differences (p > 0.05) among the 3 treatment arms. No differences were found between WOMAC pain scores at 12 months for the pain coping skills and arthritis education groups (adjusted mean difference, 0.3 [95% confidence interval (CI), −0.9 to 1.5]) or between the pain coping and usual-care groups (adjusted mean difference, 0.4 [95% CI, −0.7 to 1.5]). Secondary outcomes also showed no significant differences (p > 0.05) among the 3 groups.

Conclusions:

Among adults with pain catastrophizing undergoing knee arthroplasty, cognitive behaviorally based pain coping skills training did not confer pain or functional benefit beyond the large improvements achieved with usual surgical and postoperative care. Future research should develop interventions for the approximately 20% of patients undergoing knee arthroplasty who experience persistent function-limiting pain.

Level of Evidence:

Therapeutic Level I. See Instructions for Authors for a complete description of levels of evidence.
Assessing the Benefit of Polymer‐Coated Urea for Corn Production on Irrigated Sandy Soils
Authors: Rui Yichao , Ruark Matthew D. , Andraski Todd W. , Bundy Larry G.
Published: February 2019

Core Ideas

Polymer‐coated urea led to greater yields compared to other N fertilizers when all applied preplant.

The performance of preplant polymer‐coated urea is reduced in high rainfall years.

Split application of ammonium sulfate consistently produced the greatest yields on irrigated sands.

Nitrification inhibitor showed little impact on corn yield on irrigated sandy soils.

Polymer‐coated urea (PCU) is an enhanced‐efficiency fertilizer product that can potentially increase N use efficiency, thereby reducing N losses to the environment. However, the optimum timing and rates of PCU application under varying seasonal precipitation is less known. Here we studied the response of corn (Zea mays L.) yield and N use efficiency to N timing (preplant, sidedress, and split application) and rates (112–280 kg N ha−1) of PCU, ammonium sulfate (AS), and urea, including a control treatment without N, on an irrigated sandy soil (90% sand) in central Wisconsin from 2003 to 2006. The effect of N rate on grain yield was significant in 2003, 2004, and 2005, but not in 2006. Grain yield and N recovery efficiency (RE) with preplant PCU was greater in 2004 and 2005, and similar in 2003 and 2006 compared with preplant AS or urea. Preplant PCU had similar or greater yield and RE compared with split‐applied AS in 3 yr, but lower yield and RE in the year with the greatest early season rainfall. Nitrification inhibitor (dicyandiamide) showed little impact on corn yield. These results indicated that PCU, when applied preplant, was agronomically and environmentally advantageous over the other N fertilizer sources and typically performed as well as split application of other N fertilizers. However, under conditions where there is a lot of early season rainfall, use of preplant PCU would still result in N losses and then crops would need supplemental N to achieve high yields.
Análise do modelo de arborização em praças públicas do Município de Fortaleza (Estado do Ceará, Nordeste do Brasil) e sua influência no conforto térmico e estruturas urbanas
Authors: Frota Júnior José Itamar , Jesuino Israel Teixeira , Martins Maerlon Carmo
Published: February 2019

O intenso crescimento territorial e populacional pelo qual as cidades vêm sofrendo, integrado a um mau planejamento e descaso aos espaços verdes, causam danos ao meio ambiente, e consequentemente promovem impactos sobre a saúde, o conforto e as atividades dos citadinos. As praças têm papel fundamental na melhoria do microclima e do conforto térmico, além da melhoria da qualidade do ar, escoamento e absorção das águas pluviais. Logo, faz-se necessário o planejamento da arborização em praças públicas nas grandes metrópoles. A Cidade de Fortaleza não possui um estudo do modelo de arborização adotado em suas praças, assim como, um planejamento que privilegie árvores mais adaptadas ambientalmente e funcionalmente, de preferência nativas, que atendam às necessidades climáticas e sustentáveis. O objetivo desse trabalho foi analisar, identificar, quantificar espécies arbóreas existentes em 11 praças públicas do Município de Fortaleza (Estado do Ceará, Nordeste do Brasil), além de estudar as influências das mesmas no conforto térmico e malha urbana. Por meio de excursões a pé realizou-se o estudo, uma planilha padrão foi utilizada para anotação dos dados obtidos nos locais, assim como utilização de máquina fotográfica. Foi utilizado um termômetro digital infravermelho Modelo ST-500 para medição de temperatura em campo. Foram desconsideradas para o estudo, árvores mortas, mudas, arbustos e forração, consideraram-se apenas árvores cujo porte seja maior que 3 m. A aferição de temperatura foi obtida em dias ensolarados e sempre no mesmo horário (11:30 h) em face da cobertura vegetal em diferentes materiais de piso (cimentado e grama), analisou-se o estado fitossanitário das espécies mostrando aquelas que estão potencialmente afetadas por pragas e doenças, além daquelas espécies que interferissem em pisos, sistemas e redes elétricas e hidráulicas dos espaços. Foram registrados 1023 indivíduos distribuídos em 20 famílias, 76 gêneros e 63 espécies nas praças estudadas. Observou-se que o número de espécies exóticas (59,84%) supera o número de espécies nativas (40,16%), constatou-se que há grande predomínio da Família Arecaceae (29,25%), e em seguida a Família Fabaceae (22,04%) em todas as praças estudadas. Detectou-se diferenças significativas nas temperaturas das praças estudadas. Observou-se que há influência das árvores sobre a malha urbana (19,71%): com ênfase em quebra de calçadas e interferência na fiação elétrica aérea. Constatou-se a influência real da cobertura vegetal no conforto ambiental das praças, no que diz respeito à temperatura e conforto ambiental, imprescindíveis à qualidade de vida nas cidades.
Break Up Variations: An Annotated Score
Authors: Constraints Generative
Published: February 2019

Break Up Variations is an annotated score by means of which we consider the document as a break-up from — and with — the thinking of performance. We explore the formal categories of page-based and stage-based scores and documentations of performance, asserting the simultaneity of the document and its performance in their mutual departures, theorising the break-up as a form of relation, not as its absence. As a committee of interdisciplinary researchers and practitioners, we consider annotation in terms of affective and theoretical responses to each other’s subject positions.Break Up Variations relates to the problems particular to working in groups: the challenges of collaboration, the disagreements and community-led conflict resolutions, the difficulties with acting professionally, and the desires to keep working together, despite it all. We ask the following questions of each other and ourselves: What are the strategies that art, science, politics and theory might offer each other for navigating — possibly circumventing — the demise of relationships? If the working relationship breaks down, could the end of the group be considered a constitutive aspect of that group? We consider these questions to be about institutions as much as they are about interdependence on personal and planetary scales. Riffing on ideas about romantic break-ups, political dissolutions and ecological collapse, Break Up Variations considers the possibility that an end to a dream of symbiotic life is exactly what makes that dream possible and important.
Promethean and Posthuman Freedom: Brassier on Improvisation and Time
Authors: Roden David
Published: February 2019

Ray Brassier's "Unfree Improvisation/Compulsive Freedom" (written for the 2013 collaboration with Basque noise artist Mattin at Glasgow's Tramway) is a terse but insightful discussion of the notion of freedom in improvisation. He argues that we should view freedom not as the determination of an act from outside the causal order, but as the reflective self-determination by action within the causal order. This requires a system that acts in conformity to rules but can represent and modify these rules with implications for its future behaviour.Brassier does not provide a detailed account of how self-determination works in improvisation. His text implies that the act of improvisation involves an encounter between rule-governed rationality and idiomatic patterns or causes but does not specify how such rules operate in music, what their nature is or how the encounter between rules and more rudimentary “pattern-governed” behaviour occurs.I will argue that, in any case, there are no such rules to be had. Instead, claims about what is permissible or implied in musical processes index highly-context sensitive perceptual and affective responses to musical events. I develop this picture in the light of recent accounts of predictive processing and active inference in cognitive science.This account provides an alternate way of expressing Brassier’s remarks on the relationship between music and history in “Unfree Improvisation” one that eschews normative discourse in favour of an ontology of social and biological assemblages, their affects, and the processes they entrain.This adjustment is of more than aesthetic interest. Brassier’s text suggests that the temporality of the improvising act models an insurgent relation to time: specifically, the remorseless temporality explored in his writings on Prometheanism and Radical Enlightenment. I will conclude by using use this analogy to elaborate the idea of a posthuman agency adapted to a hypermodern milieu of self-augmenting technological change.
“Out, and under, and out, and out.” Self-(Dis-)Organisation and the Stories of Libertatia
Authors: Doecker Georg
Published: February 2019

Recent socio-political developments in the experimental performing arts scenes from Europe have seen a strong commitment to the practices of self-organisation and their liberating impetus. Responding to the experimental nature of many such activities with a likewise experimental theoretical enquiry, this paper invests in an interpretation of self-organising principles from anarchism, cybernetics, and vitalist materialism through the fictional narrative of the pirate utopia Libertatia. The argument thus developed is that the liberating potentials of self-organisation can be located precisely in its inherent tendency toward self-dis-organisation.
The Open Field of Performance Philosophy
Authors: Daddario Will
Published: February 2019

This editorial introduces issue 4.2 of the Performance Philosophy journal. As a culmination of an "open call" for proposals, this edition prompts the reflection, "What is open?" The editorial pursues that question in order to map the open field of Performance Philosophy as it currently presents itself in this historical moment.
STRATEGI PEMASARAN MENGGUNAKAN SALES PROMOTION GIRLS (SPG) DALAM PERSPEKTIF EKONOMI ISLAM
Authors: Nurudin Nurudin
Published: February 2019

Sales promotion girl (SPG) is a profession that is engaged in the marketing or promotion of a product. This profession typically uses women who have interesting physical character as an attempt to attract the attention of consumers.SPG is required to have skills in offering goods/services of the company. Usually, the way product offering by SPG has some interesting characteristics in an attempt to attract the attention of consumers. With the promotion system using the services of a consumer not uncommon SPG gravitated towards these products but because of the physical appearance of the SPG looks sexy in that dress. This was done as an attempt to boost the product so well-known and was sold to the general public. This research is field research using the method of observation, interview, and documentation. This type of research is qualitative research that is data presented with words. By using a descriptive method. Islamic Economics perspective on marketing strategies using SPG is not allowed if the SPG sexy dress and exposes her body accentuating i.e., lest consumers buy goods, not because of the quality of its products.
Exploring the multiscale changeability of precipitation using the entropy concept and self-organizing maps
Authors: Roushangar Kiyoumars , Alizadeh Farhad , Adamowski Jan , Saghebian Seyed Mehdi
Published: February 2019

This study utilized a spatio-temporal framework to assess the dispersion and uncertainty of precipitation in Iran. Thirty-one rain gauges with data from 1960 to 2010 were selected in order to apply the entropy concept and study spatio-temporal variability of precipitation. The variability of monthly, seasonal and annual precipitation series was studied using the marginal disorder index (MDI). To investigate the intra-annual and decadal distribution of monthly and annual precipitation values, the apportionment disorder index (ADI) and decadal ADI (DADI) were applied to the time series. The continuous wavelet transform was used to decompose the ADI time series into time-frequency domains. The decomposition of the ADI series into different zones helped to identify the dominant modes of variability and the variation of those modes over time. The results revealed the high disorderliness in the amount of precipitation for different temporal scales based on disorder indices. Based on the DI outcome for all rain gauges, a self-organizing map (SOM) was trained to find the optimum number of clusters (seven) of rain gauges. It was observed from the clustering that there was hydrologic similarity in the clusters apart from the geographic neighborhood.
Coarctation repair through left thoracotomy in neonates and infants
Authors: Belyaeva M. , Ilyin V. , Kornouhov O. , Kornouhov Yu. , Kalinina O.
Published: February 2019

Aim. A growing interest in the use of sternotomy and perfusion for repair of aortic coarctation in neonates and infants has enabled us to retrospectively review our own experience in this practice. Our purpose was to determine the efficacy of coarctation repair with extended end-to-end anastomosis through left thoracotomy focusing on a re-intervention rate and dynamics of transverse aortic arch growth during long-term follow-up. Methods. One hundred and twenty-four patients under 3 months old who underwent coarctation repair (between 2008 and 2016) were enrolled in this study. In 43 patients (35%), aorta coarctation was combined with ventricular septal defect, 49 patients (39.5%) had transversal aortic arch hypoplasia (Z-score less than –2). All operations were carried out by using extended “end-to-end” anastomosis technique via thoracotomy. In patients with concomitant ventricular septal defect, PA-banding was performed simultaneously. Overall follow-up was 3.6 (0.3–8.0) years. Results. Early mortality was 1.6%. Late survival rate was 93.5%. Recurrent aortic arch obstruction was revealed in 10 (8%) patients, on the average, in 6.5 (3.5–15) months after coarctation repair. Management of re-stenosis with balloon aortoplasty was effective in all cases and had no complications. A statistically significant growth (p<0.001) of the transverse aortic arch was observed in those patients who had hypoplasia of the arch before surgery. Conclusion. Repair of coarctation of the aorta by resection and extended “end-to-end” anastomosis via thoracotomy without perfusion has low operative mortality, an excellent survival rate and a reduced rate of balloon re-intervention. Patients with baseline moderate transverse aortic arch hypoplasia demonstrate a growth of the aorta up to normal values in long-term follow-up. Endovascular balloon dilatation of aortic re-coarctation zone during long-term follow-up is an effective and safe procedure.
Received 20 June 2018. Revised 5 September 2018. Accepted 12 September 2018.
Funding: The study did not have sponsorship.
Conflict of interest: Authors declare no conflict of interest.
Author contributionsConception and study design: V.N. IlyinData collection and analysis: M.M. Belyaeva, O.Yu. Kornoukhov, Yu.Yu. Kornoukhov, O.I. KalininaDrafting the article: M.M. BelyaevaCritical revision of the article: V.N. Ilyin, O.Yu. KornoukhovFinal approval of the version to be published: M.M. Belyaeva, V.N. Ilyin, O.Yu. Kornoukhov, Yu.Yu. Kornoukhov, O.I. Kalinina
Controlled Shunt Reactor for UHVAC System Reactive Power Control
Authors: Bharti Satyadharma , Dubey Satya P.
Published: February 2019

Background:

In this paper, a novel technique for reactive power management of the Ultra High
Voltage (UHV) lines having voltage level of 1200 kV line and above is suggested. The UHV power grid
has to frequently face the problems associated with the power- frequency and switching over-voltages.

Methods:

The technique involves the use of three-phase UHV Transformers as a Controlled Shunt
Reactor (CSR) in combination with the use of a fixed reactor. The performance of the UHV AC
transmission line is studied using PSCAD software and working of CSR is evaluated.

Results:

Standard parameters of the proposed Wardha-Aurangabad 1200 kV transmission line in India
are considered for simulation model. The use of CSR has been found to be effective in mitigating
system problems.

Conclusion:

The system can be used for maintaining voltage profile, resulting in enhancement of the
reliability of the UHV transmission system.
Consumer Assessment of New Zealand Forage Finished Beef Compared to US Grain Fed Beef
Authors: Garmyn A. J. , Polkinghorne R. J. , Brooks J. C. , Miller M. F.
Published: February 2019

Consumer sensory analysis was conducted to determine differences in beef palatability between three process-verified feeding programs (New Zealand fodder beet, New Zealand grass/non-fodder beet, US grain). Beef strip loins were selected to represent low or high expected eating quality (based on eligibility for the company’s branded program, which focuses on carcass attributes of marbling, ossification, pH, 12th rib fat, and HCW), resulting in 6 treatments: fodder beet low quality (FBL), fodder beet high quality (FBH), non-fodder beet low quality (NFBL), and non-fodder beet high quality (NFBH), Select (SEL) and Top Choice (TCH). Samples were aged until 21 or 35 d postmortem. Extending postmortem aging positively influenced (P < 0.05) New Zealand non-fodder beet samples, but largely had no effect (P > 0.05) on New Zealand fodder beet samples, with the exception that tenderness was improved (P < 0.05). Postmortem aging had a negative impact (P < 0.05) on SEL juiciness and TC flavor and overall liking and no impact (P > 0.05) on all remaining traits of US grain fed beef loin steaks. When focusing on the high eating quality samples, consumers did not discriminate between finishing systems when samples were aged 35 d, scoring TCH, FBH, and NFBH similarly (P > 0.05) for all palatability traits. The FBL and NFBL were normally scored similarly (P > 0.05) or with a slight advantage over SEL, regardless of aging period. Ultimately, finishing beef cattle using fodder beet in New Zealand can be a viable option to supply high quality beef during winter months, while maintaining the eating quality expectations associated with “grass-fed” beef according to US consumers from the Lubbock, TX area.
La evolución de las brechas digitales y el auge de la Inteligencia Artificial (IA)
Authors: Lombana Bermudez Andrés
Published: February 2019

Las promesas de acceso a la información, democratización del conocimiento, desarrollo económico y mayor participación, han sido un potente motor para la difusión de las Tecnologías de Información y Comunicación (TIC) en la mayoría de países del mundo. Sin embargo, luego de varias décadas de esfuerzos por cerrar la "brecha digital" y con más de medio planeta conectado a Internet, los augurios de la transformación en este ámbito continúan sin realizarse por completo. Las desigualdades socioeconómicas y culturales han determinado la manera en que diferentes individuos y grupos han apropiado las herramientas y redes digitales y han accedido a oportunidades. En vez de una sola brecha digital de carácter tecnológico, científicos sociales han demostrado que existen múltiples fracturas estructurales que dan forma a los procesos de apropiación de tecnologías. El rápido desarrollo de TIC de última generación, como  el caso de los sistemas de Inteligencia Artificial (IA) y su despliegue a través de varias dimensiones sociales, probablemente profundizará las desigualdades digitales existentes. Hoy en día, la IA ya está siendo aplicada alrededor del mundo en diferentes sectores como: las finanzas, la educación y la distribución de noticias en redes sociales. Para comprender el impacto que la IA tendrá en la sociedad, economía, política y cultura y, asimismo, ayudar a que su difusión se lleve a cabo de una manera más justa, ética y humana, es necesario reconocer la existencia de múltiples brechas digitales que van más allá del simple acceso a tecnología. Este artículo explora la evolución de las desigualdades digitales con una perspectiva histórica y crítica que permite comprender sus matices y complejidad, evitar el determinismo tecnológico y situar el auge de la IA como parte de un proceso acelerado de transformación digital a escala nacional, regional y global.
Cómo evaluar las argumentaciones judiciales
Authors: Atienza Manuel
Published: February 2019

En este trabajo se trata de contestar a la cuestión de cómo evaluar los argumentos judiciales de carácter justificativo. Se precisa para ello el sentido de la tesis de la única respuesta correcta; se identifican diversos criterios de corrección y se presta una atención particular a los criterios de universalidad, coherencia, adecuación de las consecuencias, moralidad social y crítica, y razonabilidad.
The Role of the Hydrographer in Rating Curve Development
Authors: Hamilton Stuart , Watson Marianne , Pike Robin
Published: February 2019

Stage-discharge rating curves are used to produce most of the world’s discharge data. The shape of these curves is dependent on the shape of the channel that controls flow. Changes in rating curves occur over time in response to transitory (e.g., vegetation, ice, debris) or persistent (e.g., aggradation/degradation) changes of the rated channel. Errors in rating curve development can result from the mischaracterization of the shape of the curve at a given time, or the misidentification of patterns of change over time. While data-driven methods for rating curve calibration are desirable, conventional statistical regression techniques, unfortunately, require far more data points to fully characterize the patterns of change in the curve shapes than are commonly available. This article discusses the benefits of field observations of the stream channel in support of rating curve development. The mathematical form of the rating curve can be inferred from observations of natural channel control features that link to principles of flow. In this article, the theoretical components of the rating curve equation are discussed with emphasis on how field observations can be used to groundtruth calibrated values for the coefficient, offset, and exponent for each segment of a stage-discharge rating curve. The article also explains how conceptual models developed by the hydrographer add value to the calibration process.
Enfoques de la resiliencia ante el cambio climático.
Authors: Santiago Vera Teresita de Jesús , García Millán Máximo A. , Rosset Peter Michael
Published: February 2019

El cambio climático afecta directamente al sistema alimentario, reduciendo la disponibilidad de alimentos e incrementando la desigualdad del acceso a sectores desfavorecidos de la población. La resiliencia es la habilidad del sistema para absorber perturbaciones o la rapidez para recobrarse de disturbios climáticos y en una aplicación del término se crea la resiliencia social como la habilidad de las comunidades para mantener la estructura social ante shocks externos. El objetivo es analizar diferentes enfoques de este concepto en doce publicaciones que revisan casos en relación con eventos extremos causados por el cambio climático y cuál es el papel de las organizaciones campesinas e indígenas en estas. Como resultado se encontró que la mitad de trabajos buscan en cuanto a las organizaciones, su análisis, el diálogo horizontal, que sean actores y que sean los autores, mientras los restantes pretenden instruir y siguen el discurso cientificista y vertical de posesión del conocimiento. En conclusión, menciona que se está en una etapa de visibilización de las posturas que provienen de organizaciones indígenas y campesinas como sujetos. La importancia de este momento histórico es la posibilidad de tomar acciones reales de mitigación del cambio climático por estos sujetos que se escuchan y en conjunto toman espacios antes negados.
Filme Equilibrium
Authors: Ferreira Erivana D'Arc Daniel da Silva , Silva Hernandes Andrade , Teixeira José Sobreira , Brasil Marcus Vinicius de Oliveira
Published: February 2019

O objeto de análise deste estudo centra-se no filme de ação, drama e ficção “Equilibrium” que estreou nos EUA em 2002, sob a direção de Kurt Wimmer. O presente estudo tem como objetivo analisar a subjetividade do filme Equilibrium, na ótica da gestão da informação e do conhecimento, com ênfase nos mecanismos de controle social, tecendo reflexões e realizando um comparativo com aspectos contemporâneos. O estudo caracteriza-se como pesquisa observação em análise fílmica. O filme é desenvolvido em um futuro incerto, a raça humana foi quase totalmente devastada. Para salvar o mundo, os governantes decidiram criar uma droga capaz de inibir o sentimento humano, assim, garantindo a paz para sempre. O filme nos faz refletir sobre a importância do conhecimento numa época onde as organizações passaram por profundas mudanças. O filme nos traz o questionamento se realmente vale a pena deixar de sentir tanto o ódio quanto o amor para ter uma sociedade em estado de paz.
Uma aproximação ao conceito de aura em Walter Benjamin
Authors: Fasano Anderson , Fontanari Rodrigo
Published: February 2019

O presente artigo busca explicitar, dentro das limitações a este tipo de gênero, o conceito aura (seus desdobramentos semânticos e suas possíveis relações com as transformações trazidas pela Modernidade) elaborado por Walter B.S. Benjamin, a fim de estabelecer um caminho para uma aproximação de sua leitura do status da Arte a partir da Fotografia e do Cinema, bem como das extensões filosófico-sociais inerentes a ela. Para tanto, o método arqueológico – enquanto resgate ou recuperação do conceito – se nos afigurou o mais pertinente ao intento aqui estabelecido como meta.
Corporate governance and firm performance: Evidence from an emerging market
Authors: Alanazi Ahmed S.
Published: February 2019

The paper investigates the link between corporate governance scores and firm performance among the largest 90 listed companies on the Saudi Stock market. The sample of 90 listed firms is split into two samples: firms with high governance scores and firms with low governance scores. The research compares and contrasts the operating performance of the two samples. In addition, regression models are used to test the link between governance scores and performance. No link between the companies’ corporate governance scores and operating performance is found. It is difficult to capture all elements of the complex corporate governance topic in corporate governance scores. It seems that corporate governance in emerging markets lags far behind that of developed markets. This is the first paper to examine the link between corporate governance scores and operating performance in the Saudi market, a new emerging market that has not been examined. The paper adds to the debate in the literature whether there is a link between corporate governance scores and performance. The evidence in the literature is inconclusive.
Opportunities for development of tourist potentials in protected areas of the water storage reservoirs, on the example of spatial plans of the special purpose areas in Serbia
Authors: Danilovic-Hristic Natasa , Stefanovic Nebojsa , Petric Jasna
Published: February 2019

Areas of large and medium-sized water storage reservoirs whose hydropotential
is used for water supply of settlements and/or as part of the energy system,
at the same time, and under certain conditions and limitations, can
represent the locations for the development of tourism. This potentially
conflicting situation may be resolved through the planning process and
development of Spatial Plans of the Special Purpose Areas (SPSPAs). A major
challenge with water storage reservoirs of multiple purposes is in ?sharing?
water amongst competing users with an aim of providing sustainable
development of a wider territory and, simultaneously, to safeguard the
health safety of the water at the source (water storage reservoir).This
paper deals with planning treatment - by a new generation of SPSPAs in
Serbia - of the areas that cover new and already formed water storage
reservoirs and with prudent activation of their tourist potentials.
Variability, correlation, path analysis and stepwise regression for yield components of different wheat genotypes
Authors: Matkovic-Stojsin Mirela , Zecevic Veselinka , Petrovic Sofija , Dimitrijevic Miodrag , Micanovic Danica , Banjac Borislav , Knezevic Desimir
Published: February 2019

In order to evaluate the variability and relationship between different wheat
yield components, a randomized complete block design experiment with ten
genotypes of wheat had been carried out during three growing seasons
(2010-2012). The number of spikelet per spike and grain weight per spike had
low genotypic and phenotypic variability, while plant height had the highest
one. High heritability was observed for plant height (h2=93.1%), spike
length (h2=92.3%) and spike density (h2=92.9%). The low heritability was
found for grain weight per spike (h2=35.6%). Grain weight per spike was in
significant positive genotypic and phenotypic correlation with all the
traits (plant height, spike height, number of spikelet per spike, number of
grain per spike and spike weight) except spike density. The spike weight had
the highest phenotypic (rp=0.988), while number of spikelet per spike had
the highest genotypic correlation with grain weight per spike (rg=0.981).
Path coefficient analysis revealed that all the traits had highly
significant direct effect on grain weight per spike, except spike length.
The stepwise regression revealed that 87.1% of the grain weight per spike
variation was explained by model which excludes spike length. Spike weight
and plant height had the highest shared and unique contribution to grain
weight per spike.
Análise dos Riscos em Projetos: Uma Aplicação do Método de Monte Carlo em uma Empresa do Setor Moveleiro
Authors: Amorim Fernando Rodrigues de , Abreu Pedro Henrique Camargo de , Patino Marco Tulio Ospina , Terra Leonardo Augusto Amaral
Published: February 2019

A globalização é um fenômeno que se faz presente na sociedade moderna e, com a sua expansão, é essencial que as empresas possam atender as constantes exigências do mercado, mas, para isso, é necessário tomar as melhores decisões e lidar com várias adversidades relacionadas à economia, concorrência, gestão, entre outros. O sucesso de projetos de investimento é determinado por um conjunto de técnicas que devem ser aplicadas para não comprometer a viabilidade do projeto. Quando essa viabilidade é cercada por incertezas, uma alternativa útil, para se conhecer os riscos, é a utilização do método de Monte Carlo. O presente trabalho tem como objetivo abordar os fatores de riscos, em uma empresa do setor moveleiro, utilizando a simulação de Monte Carlo para analisar a viabilidade deste projeto. A metodologia adotada foi desenvolvida com base em um estudo de caso, mediante uma pesquisa exploratória. Os resultados mostraram que o projeto de investimento se faz viável, estimando um retorno entre o 4º e o 5º ano do projeto, além disso, o saldo, após os 10 anos de investimento, giraria em torno de R$ 4.128.211,63, um valor que representa 161,25% do investimento inicial.
How Agile Development and Its Tools Support Digital Transformation
Authors: Alruwaili Fatimah , Alrajhi Muna , Saeedi Kawther
Published: February 2019

Digital transformation is the enabler for new reform of businesses, socialites and governments. It is also the platform to the 2030 Vision in Saudi Arabia and in many other countries. Agile Manifesto succeeded to manage software development in a rapid and reliable fashion. Furthermore, incremental delivery of software release ensure that software audiences are engaged while delivering the product, their comments are considered in every function and any changes in requirements are based on imperial use of the software. This ensure the delivery of functionalities matching customer demands as well as reduce project failure risk. For this reason, Agility has been adopted in most software companies as a guaranteed and easy way to implement the digital solutions for their companies. This paper examines the characteristics of agile frameworks, such as Scrum and XP, and Agile tools, such as Jira, Agilo, and others, that facilitate digital transformation. Then compare productivity and efficacy of agile frameworks with traditional SDLC methods. The paper is concluded with the features of agile framework that enable digital transformation such as incremental development, flexible requirements and customer engagement.
Propensity-score-adjusted comparison of Evolut vs. Portico devices for transcatheter aortic valve implantation
Authors: Giordano Arturo , Corcione Nicola , Ferraro Paolo , Pieri Pietro , Avellino Raffaella , Frati Giacomo , De Persio Giovanni , Altamura Luca , Tomai Fabrizio , Biondi-Zoccai Giuseppe
Published: February 2019

Aims

Transcatheter aortic valve implantation has become an established treatment for severe aortic stenosis, thanks to key improvements achieved by new-generation devices. Their comparative effectiveness and safety are, however, still uncertain.

Methods

We queried a prospective registry on transcatheter aortic valve implantation to compare Evolut and Portico devices, focusing on procedural, in-hospital, and mid-term outcomes. Unadjusted and propensity-adjusted analyses were carried out.

Results

In all, 233 patients were included, 119 (51.1%) receiving Evolut and 114 (48.9%) Portico. Several differences in baseline and procedural features were evident, including comorbidities, device size, and postdilation (all P < 0.05). Unadjusted analysis for procedural results showed significant differences in fluoroscopy time, left ventricular ejection fraction, and aortic regurgitation (all P < 0.05), whereas device and procedural success rates were not significantly different (both P > 0.05). In-hospital outcomes were not significantly different (all P > 0.05). Survival analysis for mid-term follow-up (6 ± 7 months) outcomes showed no significant differences in death, stroke, myocardial infarction, major vascular complication, or major bleeding (all P > 0.05). Conversely, Evolut appeared associated with lower peak and mean aortic gradients (both P < 0.05), but higher rate of permanent pacemaker implantation (P = 0.043). Propensity-score-adjusted analysis largely confirmed the similar performance of the two devices, including peak and mean aortic gradients (both P > 0.05). However, Evolut continued to be associated even at adjusted analysis with an increased risk of pacemaker implantation (P = 0.018).

Conclusion

The acute and mid-term comparative safety and effectiveness of Evolut and Portico in experienced hands are similar, with the notable exception of a lower risk of permanent pacemaker implantation with Portico.
Improving health perception through a transition care model for adolescents with congenital heart disease
Authors: Flocco Serena Francesca , Dellafiore Federica , Caruso Rosario , Giamberti Alessandro , Micheletti Angelo , Negura Diana Gabriela , Piazza Luciane , Carminati Mario , Chessa Massimo
Published: February 2019

Aims

The aim of this study was to assess the impact of a transition clinic model on adolescent congenital heart disease (CHD) patients’ health perception outcomes. The transition clinic model consists of multidisciplinary standardized interventions to educate and support CHD patients and represents a key element in the adequate delivery of care to these individuals during their transition from childhood to adulthood. Currently, empirical data regarding the impact of transition clinic models on the improvement of health perceptions in CHD adolescent patients are lacking.

Methods

A quasi-experimental design was employed. Quality of life, satisfaction, health perceptions and knowledge were assessed at the time of enrolment (T0) and a year after enrolment (T1), respectively. During the follow-up period, the patients enrolled (aged 11–18 years) were involved in the CHD-specific transition clinic model (CHD-TC).

Results

A sample of 224 CHD adolescents was enrolled (60.7% boys; mean age: 14.84 ± 1.78 years). According to Warnes’ classification, 22% of patients had simple heart defect, 56% showed moderate complexity and 22% demonstrated severe complexity. The overall results suggested a good impact of the CHD-TC on adolescents’ outcomes, detailing in T1 the occurrence of a reduction of pain (P < 0.001) and anxiety (P < 0.001) and an improvement of knowledge (P < 0.001), life satisfaction (P < 0.001), perception of health status (P < 0.001) and quality of life (P < 0.001).

Conclusion

The CHD-TC seems to provide high-quality care to the patient by way of a multidisciplinary team. The results of the present study are encouraging and confirm the need to create multidisciplinary standardized interventions in order to educate and support the delivery of care for CHD adolescents and their families.
QT prolongation and variability: new ECG signs of atrial potentials dispersion before atrial fibrillation onset
Authors: Magnano Massimo , Gallo Cristina , Bocchino Pier Paolo , Briguglio Marco , Rivetti Anna , Gaita Fiorenzo , Anselmino Matteo
Published: February 2019

Aims

QT interval may be considered an indirect marker of atrial repolarization. Aim of our study was to verify if QT interval variations precede the onset of atrial fibrillation (AF).

Methods

We analyzed 21 AF onsets recorded at 24-h Holter ECG. Triggering supraventricular extrabeats (TSVEB) were identified and matched to nontriggering supraventricular extrabeats (NTSVEB) with the same prematurity index. QT and QTc intervals and their variability (max–min QT interval) were measured in the 10 beats preceding TSVEB and NTSVEB.

Results

QTc (470.1 ± 56.7 vs. 436.7 ± 25.6 ms; P = 0.006), QT (36.8 ± 13.1 vs. 21.1 ± 10.1 ms; P = 0.001) and QTc variability (41.5 ± 15.8 vs. 23.1 ± 11.9; P = 0.001) significantly varied between TSVEB and NTSVEB. By stratifying AF onsets in vagal (n = 10) and adrenergic (n = 11) according to Heart Rate Variability, significant differences emerged concerning QT (35.20 ± 16.48 vs. 22.70 ± 10.23 ms, P = 0.006) and QTc variability (39.30 ± 18.32 vs. 25.60 ± 12.91 ms, P = 0.029) for vagal onsets and QTc (477.73 ± 57.50 vs. 438.00 ± 28.55 ms, P = 0.045), QT (38.36 ± 9.79 vs. 19.73 ± 10.21 ms, P = 0.005) and QTc variability (43.55 ± 13.72 vs. 20.82 ± 11.01 ms, P = 0.004) for adrenergic onsets. By stratifying AF onsets in type I (n = 7) or II (n = 14) according to a cycle length variation in the 30 s before the onset greater or smaller than 10% respectively, significant differences were noted concerning QTc (477.73 ± 57.50 vs. 438 ± 28.55 ms, P = 0.045), QT (43.55 ± 13.72 vs. 20.82 ± 11.01 ms, P = 0.005) and QTc variability (43.55 ± 13.72 vs. 20.82 ± 11.01 ms, P = 0.004) in type I and QT (35.20 ± 16.48 vs. 22.70 ± 10.23 ms, P = 0.006) and QTc variability (39.30 ± 18.32 vs. 25.60 ± 12.91 ms, P = 0.029) in type II onsets.

Conclusion

Prolongation and QT variability represent a relevant substrate marker in the genesis of AF, independently of the trigger type.
Public Spaces of Kaunas from the Inter-War Period to Contemporary: Content Analysis
Authors: Zaleckis Kęstutis , Vitkuvienė Jurga , Gražulevičiūtė-Vileniškė Indrė , Tranavičiūtė Brigita , Doğan Huriye Armağan , Sinkienė Jolita , Grunskis Tomas
Published: February 2019

This research demonstrates the potential of content analysis method in urban research in the context of the study of modernization of Lithuanian cities during the Soviet period and its influence on contemporary urbanism. The content analysis of visual material (photographs, postcards and other images) is integrated as one of the methods of the study, allowing to identify the social phenomena in public spaces and their changes throughout the period from the inter-war era to contemporary. The descriptive analysis presented in this article demonstrates changes in people and activities, in scale and shape of public spaces, mobility and safety.
Urban Gardening as a Multifunctional Tool to Increase Social Sustainability in the City
Authors: Koroļova Alisa , Treija Sandra
Published: February 2019

The concept of urban gardening varies a lot in terms of gardening forms and main purposes. Followed by changes in people life style, growing interest in healthy living and sustainable urban development, the aims of urban gardening become more complex. The product of urban garden, e. g. vegetables or ornamental plants, nowadays plays less important role, as the main focus is on societal issues, urban regeneration, education and health. Thus, this article provides evidence of multi-functionality of urban gardening to address the variety of societal issues across people of different age and cultural background. Case studies from Malmo, Birmingham and Riga show how urban gardening contributes to social integration, inhabitants’ well-being and urban regeneration.
The Logic of Constructivism
Authors: Díez Gustavo Fernández
Published: February 2019

In this paper I dispute the current view that intuitionistic logic is the common basis for the three main trends of constructivism in the philosophy of mathematics: intuitionism, Russian constructivism and Bishop’s constructivism. The point is that the so-called ‘Markov’s principle’, which is accepted by Russian constructivists and rejected by the other two, is expressible in intuitionistic first-order logic, and so it appears to have the status of a logical principle. The result of appending this principle to a complete intuitionistic axiom system for first-order predicate logic constitutes a new logic, which could well be called ‘Markov’s logic’, and which should be regarded as the true logical system underlying Russian constructivism.
Estonia’s comprehensive approach to national defence: origins and dilemmas
Authors: Veebel Viljar , Ploom Illimar
Published: February 2019

This study aimed to offer an in-depth insight into intellectual dilemmas associated with a comprehensive approach to national defence using Estonia as an example to demonstrate that comprehensive approach in itself may not be enough to feel safe and secure. The authors focused on two specific theoretical questions. First, how security threats are determined in Estonia, including the impact of such a phenomenon as macro-securitization? Second, how various levels of comprehensive approach relate to each other in the way that a shared security culture will be created? In this way, the aim of this article was not only to shake the foundations of national defence in Estonia but also to contribute to the improvement of the current model to ensure that it actually works in practice.