bluuebunny/crossref_metadata_2025 huggingface dataset:
The Short-Term Power Load Forecasting Based on Sperm Whale Algorithm and Wavelet Least Square Support Vector Machine with DWT-IR for Feature Selection
Authors: Liu Jin-peng , Li Chang-ling
Published: July 2017

Short-term power load forecasting is an important basis for the operation of integrated energy system, and the accuracy of load forecasting directly affects the economy of system operation. To improve the forecasting accuracy, this paper proposes a load forecasting system based on wavelet least square support vector machine and sperm whale algorithm. Firstly, the methods of discrete wavelet transform and inconsistency rate model (DWT-IR) are used to select the optimal features, which aims to reduce the redundancy of input vectors. Secondly, the kernel function of least square support vector machine LSSVM is replaced by wavelet kernel function for improving the nonlinear mapping ability of LSSVM. Lastly, the parameters of W-LSSVM are optimized by sperm whale algorithm, and the short-term load forecasting method of W-LSSVM-SWA is established. Additionally, the example verification results show that the proposed model outperforms other alternative methods and has a strong effectiveness and feasibility in short-term power load forecasting.
Spatial Club Convergence of Regional Economic Growth in Inland China
Authors: Qin Chenglin , Ye Xinyue , Liu Yingxia
Published: July 2017

Spatial club convergence is a group of regions which are adjacent to each other in space and have similar initial conditions and structural features while converging towards the same steady state in the economic development. Based on the Solow model, this paper builds a theoretical model to prove the mechanism of spatial club convergence. The spatial club convergence process is explored in inland China, using the case of the Zhongyuan urban agglomeration during the years of 1993–2009. This region has been experiencing a dramatic economic development and serves as an ideal test bed of the theory of spatial club convergence. The results show that in the two periods of 1993–1999, and 1993–2009, there was spatial club convergence in the 56 regions of Zhongyuan urban agglomeration of China. The respective convergence rates were 2.0% and 1.0%. Hence, both theoretical deduction and empirical studies verify the hypothesis of spatial club convergence.
Spatiotemporal Analysis of the Formation of Informal Settlements in a Metropolitan Fringe: Seoul (1950–2015)
Authors: Han Yiwen , Song Youngkeun , Burnette Lindsay , Lammers David
Published: July 2017

In many metropolitan areas, the urban fringe is defined by highly sensitive habitats such as forests and wetlands. However, the explosive growth of urban areas has led to the formation of informal settlements in the urban fringe, subsequently threatening these sensitive habitats and exaggerating several social and environmental problems. We seek to improve the current understanding of informal settlements and their formation in the metropolitan fringe through a comprehensive spatiotemporal analysis of the Guryong Area (GA) in the Gangnam District, Seoul, South Korea. We measured the land-use and land-cover (LULC) changes in the entire GA from 1950 to 2015, and then analyzed the changes in one specific land-use type defined as “spontaneous settlements”. We then combined these changes with landform and slope data in 600-m-wide bands along the gradient of urbanization. The results showed spontaneous settlements distributed in small clusters in 1975, and the growth of this distribution into larger, more condensed clusters beginning in 1985. Between 1950 and 2015, the total area of spontaneous settlements decreased, while the settlement locations shifted from the urban core to the marginal area of the GA. Meanwhile, the locations selected for spontaneous settlements moved from plain areas with slopes of 2–7%, to more steeply sloped, remote areas such as the mountain foothills with slopes of 15–30%. These results suggest that the spatial characteristics of informal settlements are shown in the degree of aggregation and marginalized trend indicated from the analysis of spontaneous settlements. Finally, we hope the spatial analysis can be used as a basis and starting point for the evaluation process of informal settlement redevelopments in other areas of Seoul, as well as in other Asian cities.
Incentive Model Based on Cooperative Relationship in Sustainable Construction Projects
Authors: Wu Guangdong , Zuo Jian , Zhao Xianbo
Published: July 2017

Considering the cooperative relationship between owners and contractors in sustainable construction projects, as well as the synergistic effects created by cooperative behaviors, a cooperative incentive model was developed using game theory. The model was formulated and analyzed under both non-moral hazard and moral hazard situations. Then, a numerical simulation and example were proposed to verify the conclusions derived from the model. The results showed that the synergistic effect increases the input intensity of one party’s resource transfer into the increase of marginal utility of the other party, thus the owner and contractor are willing to enhance their levels of effort. One party’s optimal benefit allocation coefficient is positively affected by its own output efficiency, and negatively affected by the other party’s output efficiency. The effort level and expected benefits of the owner and contractor can be improved by enhancing the cooperative relationship between the two parties, as well as enhancing the net benefits of a sustainable construction project. The synergistic effect cannot lower the negative effect of moral hazard behaviors during the implementation of sustainable construction projects. Conversely, the higher levels of the cooperative relationship, the wider the gaps amongst the optimal values under both non-moral hazard and moral hazard situations for the levels of effort, expected benefits and net project benefits. Since few studies to date have emphasized the effects of cooperative relationship on sustainable construction projects, this study constructed a game-based incentive model to bridge the gaps. This study contributes significant theoretical and practical insights into the management of cooperation amongst stakeholders, and into the enhancement of the overall benefits of sustainable construction projects.
The Roles of Formal and Informal Institutions in Small Tourism Business Development in Rural Areas of South China
Authors: Liu Shuwen , Cheng Irene , Cheung Lewis
Published: July 2017

Taking a livelihood perspective to study tourism has become popular in recent years, but as an essential part of livelihood analysis, institutional processes have not yet received enough attention. This study focuses on the influences of formal and informal institutions on small tourism businesses in rural areas. A case study was conducted in Hong Kong, and the entitlements framework was adopted as an analytical tool. Based on qualitative data generated from field study, this paper describes how different groups of residents rely on institutions at multiple levels to gain assets and make legitimate effective use of them through operating small tourism businesses. Results indicate that the interaction between formal and informal institutions is mediated by a variety of organisations, particularly implementation authorities at the frontline, and determines residents’ access to assets and the tourism market and subsequently, affects their start-up and operation of small tourism businesses. Informal institutions play a vital role in creating a favourable situation for local residents. However, this role may not satisfy small business owners who are non-local residents.
Ontology-Based Big Data Management
Authors: Eine Bastian , Jurisch Matthias , Quint Werner
Published: July 2017

Big data management is no longer an issue for large enterprises only; it has also become a challenge for small and middle-sized enterprises, too. Today, enterprises have to handle business data and processes of increasing complexity that are almost entirely electronic in nature, regardless of enterprises’ size. Enterprises’ information systems need functions based on specific technologies to be able to reduce and interpret the complexity of business data and processes. This paper pursues the question: how can state-of-the-art information systems be improved by the use of semantic technologies, and particularly ontologies? For this purpose, three use cases of information systems that could be improved are described, and approaches based on semantic technologies and ontologies are proposed. The selected use cases relate to data integration, data quality, and business process integration.
Perceptual Implications of Level- and Frequency-Specific Deviations from Hearing Aid Prescription in Children
Authors: McCreery Ryan W. , Brennan Marc , Walker Elizabeth A. , Spratford Meredith
Published: July 2017

Background:The purpose of providing amplification for children with hearing loss is to make speech audible across a range of frequencies and intensities. Children with hearing aids (HAs) that closely approximate prescriptive targets have better audibility than peers with HA output
below prescriptive targets. Poor aided audibility puts children with hearing loss at risk for delays in communication, social, and academic development.Purpose:The goals of this study were to determine how well HAs match prescriptive targets across ranges of frequency and intensity
of speech and to determine how level- and frequency-dependent deviations from prescriptive target affect speech recognition in quiet and in background noise.Study Sample:One-hundred sixty-six children with permanent mild to severe hearing loss who were between 6 months and 8 years of
age and who wore HAs participated in the study.Data Collection and Analysis:Hearing aid verification and speech recognition data were collected as part of a longitudinal study of communication development in children with HAs. Hearing aid output at levels of soft and average speech
and maximum power output were compared with each child’s prescriptive targets. The deviations from prescriptive target were quantified based on the root-mean-square (RMS) error and absolute deviation from target for octave frequencies. Children were classified into groups based on the
number of level-dependent deviations from prescriptive target. Frequency-specific deviations from prescriptive target and sensation levels (SLs) were used to estimate the proximity of fittings across the frequency range. Lexical Neighborhood Test (LNT) word recognition in quiet and Computer-Assisted
Speech Perception Assessment (CASPA) phoneme recognition in noise were compared across level-dependent error groups and as a function of SL at 4 kHz.Results:Children who had deviations from prescriptive target at all three input levels had poorer LNT word recognition in quiet than children
who had fittings that matched prescriptive target within 5 dB RMS at all three input levels. Children with lower 4 kHz SLs through their HAs had poorer LNT recognition in quiet and CASPA phoneme recognition in noise than children with higher aided SLs.Conclusions:Children with HAs fitted
to provide audibility for speech across a range of inputs and frequencies had better speech recognition outcomes than peers with HAs that were not optimally fitted to prescriptive targets.
Médecins et charlatans au XIX e siècle en France
Authors: Edelman Nicole
Published: July 2017

Médecine et charlatanisme entretiennent des rapports complexes, l’opposition entre ces deux domaines est loin d’être radicale et les frontières en sont poreuses. Le XIX e siècle est ainsi parcouru par de multiples inventions de thérapeutiques dont certaines ont un succès qui dure jusqu’à aujourd’hui (magnétisme, spiritisme, méthode Coué...). Si bien des charlatans ont un grand succès, c’est parce qu’ils expliquent le fonctionnement du corps d’une manière parfaitement claire et compréhensible (à tort !), loin de la complexité exposée par la médecine conventionnelle que, bien souvent, il faut croire sur parole. Certaines de ces thérapeutiques contestées ont cependant parfois donné lieu à de vraies découvertes médicales, l’hypnose par exemple, tandis que d’autres sont toujours pratiquées et dénoncées.
Les produits frontières
Authors: Homobono Nathalie , Bove Raphaëlle
Published: July 2017

Porté notamment par le développement de l’automédication et des objets connectés en santé, le marché du self-care connaît une forte croissance. En mutation constante, ce secteur créée et commercialise de nouvelles catégories de produits dits « frontières », pouvant être utilisés dans une sphère se situant entre le médical et le bien-être. Médicaments, compléments alimentaires, dispositifs médicaux ou encore produits de consommation courante, le statut de ces produits peut être le fruit d’un « benchmark réglementaire » qui trompe le consommateur et fausse sa perception de la valeur, de l’efficacité et du niveau de sécurité réel assurés par ces produits. Afin de garantir le développement de ce secteur dans un cadre vertueux propice à assurer la sécurité des consommateurs mais également à maintenir leur confiance, la DGCCRF mène des contrôles sur ces produits et contribue à mieux informer le public sur les différentes règlementations applicables.
Le disease mongering à l’heure de la médecine « personnalisée »
Authors: Formindep Collectif
Published: July 2017

Les pratiques visant à étendre artificiellement le domaine de la maladie ont atteint aujourd’hui une ampleur industrielle, au point de constituer un problème majeur de santé publique. Après un rappel des phases artisanales de ses débuts, nous tenterons de montrer comment le nouveau disease mongering est passé du blockbuster au « nichebuster », de l’élargissement à la segmentation du marché des maladies. Le disease mongering s’appuie désormais sur des innovations statistiques et réglementaires, et permet de mettre sur le marché de plus en plus de produits dits « innovants » extrêmement coûteux, sans avoir à apporter la preuve scientifique de leur efficacité ou leur efficience. Sous couvert de vocables séduisants, la médecine 4P (prédictive, préventive, personnalisée, de précision) monopolise des ressources croissantes, au détriment d’interventions à impact plus favorable sur la santé publique, et à meilleur niveau de preuve.
Une « consultocratie » hospitalière ?
Authors: Belorgey Nicolas , Pierru Frédéric
Published: July 2017

Depuis le début des années 2000, les cabinets de conseil se sont affirmés comme des acteurs incontournables de la réorganisation du système de santé. Loin de se cantonner à la phase de mise en œuvre des réformes, ils sont désormais étroitement associés à leur élaboration. Cette « consultocratie », souvent décriée par les professionnels du soin qui dénoncent son caractère onéreux au moment où se durcit la maîtrise des dépenses de santé, n’est pas spécifique au secteur sanitaire. L’omniprésence des consultants est l’une des manifestations de l’hybridation croissante des élites politiques, technocratiques et économiques. Elle est aussi contemporaine de l’avènement d’un « ordre de la dette 1  » qui voit les États, aux frontières de plus en plus poreuses, sommés de se réformer en permanence pour satisfaire les critères de « performance » définis par les marchés financiers.
Les « recettes » de médecine cartonnent
Authors: Payet Marc
Published: July 2017

Les lecteurs continuent à se ruer sur les livres qui parlent de santé. Mais ceux qui triomphent font œuvre de pédagogie et ont su adopter une forme nouvelle. Les best sellers ne doivent pas faire l’oublier l’importance des livres d’enquête, même s’ils se vendent moins bien.
Pour des agences régionales de santé dotées de plus de moyens de régulation
Authors: Bréchat Pierre-Henri , Lopez Alain
Published: July 2017

Avec la création des agences régionales de santé (ARS), l’État s’est affirmé comme le régulateur du dispositif de santé régional. L’ARS s’est vu confier des compétences larges portant sur tous les domaines d’intervention en faveur de la santé, ce qui en fait un levier important pour construire un système producteur de santé. Si cette réforme est une réussite, elle est en attente d’évolutions pour donner à l’ARS des moyens d’action plus efficaces, au service d’une stratégie globale de santé plus efficiente, conçue de manière à favoriser l’engagement de chacun, dont les professionnels de santé et la population.
Contralateral Eye Comparison of SMILE and Flap-Based Corneal Refractive Surgery: Computational Analysis of Biomechanical Impact
Authors: Seven Ibrahim , Vahdati Ali , Pedersen Iben Bach , Vestergaard Anders , Hjortdal Jesper , Roberts Cynthia J. , Dupps William J.
Published: July 2017

PURPOSE:

Computational analyses were performed to quantify and directly compare the biomechanical impact of flapless and flap-based procedures in a series of patients undergoing small incision lenticule extraction (SMILE) in one eye and flap-based femtosecond lenticule extraction in the other.

METHODS:

Tomographic data from 10 eyes of 5 patients undergoing femtosecond laser refractive lenticule extraction for myopic astigmatism with or without a stromal flap (femtosecond lenticule extraction in one eye, SMILE in the contralateral eye) were used to generate computational models. Inverse finite element analyses were performed at physiologic intraocular pressure followed by forward analyses at elevated intraocular pressure to assess corneal displacement and stress under differential loading. Case-specific treatment settings were incorporated. Preoperative material constants were obtained through inverse finite element analyses, and the surgically induced change in fiber stiffness within each flap was determined by minimization of the error between the simulated and actual 6-month topographic outcomes.

RESULTS:

Flap-based procedures produced a 49% (range: 2% to 87%) greater mean reduction in effective stromal collagen fiber stiffness within the flap region than contralateral SMILE cases. Lower stresses and deformations were observed within the residual stromal bed in SMILE cases than in flap-based cases. Stromal bed displacements and stresses were more affected by a loading increase in flap-based eyes than flapless eyes.

CONCLUSIONS:

Intrastromal flapless procedures had less impact on anterior stromal collagen mechanics and resulted in lower stromal bed displacements and stresses than flap-based procedures in contralateral eyes. However, biomechanical impact varied widely between individuals and this reinforces the need for individualized assessment of ectasia risk.

[
J Refract Surg.
2017;33(7):444–453].
Comparing the Zeiss Callisto Eye and the Alcon Verion Image Guided System Toric Lens Alignment Technologies
Authors: Hura Arjan S. , Osher Robert H.
Published: July 2017

PURPOSE:

To compare the alignment meridian generated by the Zeiss Callisto Eye (Carl Zeiss AG, Dublin, CA) and the Alcon Verion Image Guided System (Alcon Laboratories, Inc., Fort Worth, TX).

METHODS:

In this retrospective comparative evaluation of technology, intraoperative images were captured at different steps in the same surgery, allowing the comparison of the guidance lines generated by the Verion system to the parallel guidance lines generated by the Callisto Eye system. Measurements of each hemi-meridian were quantified using Adobe Photoshop 2015 CC software (Adobe Systems, San Jose, CA). The numbers of degrees separating these alignment meridians were calculated, entered into a database, and analyzed.

RESULTS:

The authors found that of 98 captured images of 16 eyes, the two technologies were identical in 0 eyes (θ
1
= θ
2
= 0), similar by 3° in 52 (53%) captured images (θ
1
≠ θ
2
≠ 0), and different by at least 3° in 46 (47%) captured images (θ
1
≠ θ
2
≠ 0). The target meridians were superimposed, the target lines were minimally separated, and the target lines were dissimilar. It was noted that some intraoperative variation occurred from measurement to measurement. Within the small group of 16 cases of routine toric lens implantation in this study, the absolute average number of degrees of misalignment between the Verion and Callisto Eye systems was 3.355 for θ
1
and 3.838 for θ
2
. On average, the intraoperative variation termed “drift” was noted to be 3.963° for θ
1
, and 4.557° for θ
2
.

CONCLUSIONS:

The authors found that small deviations were frequent when comparing two sophisticated technologies. Although deviations greater than 3° occurred in less than 47% of captured images from 16 eyes, smaller but significant variations of less than 3° occurred in 53% of captured images from 16 eyes. It was rare to identify a large deviation. However, the authors identified “drift” in the same eye when measurements were taken at different times. The results indicate that the two systems are not currently interchangeable. Superiority of one system over the other was not determined.

[
J Refract Surg.
2017;33(7):482–487.]
The Effects of Distance Between the Corneal Apex and the Inner and Outer Corneal Wound Edges on Corneal Astigmatism After Cataract Surgery
Authors: Kim Tae Gi , Noh Sung Rae , Jin Kyung Hyun
Published: July 2017

PURPOSE:

To compare the effects of the distance from the inner and outer corneal incision wounds to the corneal apex on the changes in corneal astigmatism after cataract surgery.

METHODS:

Seventy-two eyes with anterior corneal astigmatism less than 2.50 diopters (D) were evaluated. The distance between the incision wound and the corneal apex was measured using the Pentacam (Oculus Optikgeräte, Wetzlar, Germany) Scheimpflug image and the Image J program (National Institutes of Health, Bethesda, MD). Patients were subgrouped into the inner incision distance close (less than 4,816.44
µ
m) and far (4,816.44
µ
m or greater) groups based on the median value of inner incision distance and the outer incision distance close (less than 6,131.77
µ
m) and far (6,131.77
µ
m or greater) groups based on the median value of outer incision distance.

RESULTS:

In the inner incision distance group, the mean change in anterior, posterior, and total corneal astigmatism at 1 week and anterior astigmatism at 1 month were statistically significantly greater in the inner incision close group than in the inner incision far group. In the outer incision distance group, the mean change in anterior corneal astigmatism at 1 week was statistically significantly greater in the close group than in the far group. Surgically induced astigmatism (SIA) of the posterior cornea showed a statistically significant increase in the inner incision close group compared to the inner incision far group 1 month postoperatively, whereas there were no significant differences in the outer incision distance groups. Inner incision distance significantly correlated with the mean change in anterior and posterior corneal astigmatism and posterior SIA at 1 week postoperatively.

CONCLUSIONS:

Corneal astigmatism was affected more by inner incision distance than outer incision distance, and a larger change in the posterior SIA was noted with decreasing inner incision distance. During cataract surgery, the position of the inner corneal incision should be considered rather than the outer incision.

[
J Refract Surg.
2017;33(7):460–468.]
Intelligent Traffic Control System Implementation for Traffic Violation Control, Congestion Control and Stolen Vehicle Detection
Authors: Kulkarni Swarup Suresh , Ade Dr. Roshani
Published: July 2017

Traffic is significant issue in our nation, particularly in urban ranges. Aftereffect of this, activity clog issue happens. Crisis vehicle like rescue vehicle, fire unit, squad cars confront bunches of issue to achieve their goal on account of congested driving conditions, coming about loss of human lives. To minimize this issue we approach new idea name as ”Traffic control framework for blockage control and stolen Vehicle location”. In this framework activity freedom done by transforming Red flag into Green flag. We demonstrate idea of what is called ”Green wave”. Alongside this, we distinguish stolen vehicle by utilizing extremely advantageous RFID innovation. In the event that stolen vehicle is been distinguished, the framework gives ready sign through ringer. Framework sends Message with the assistance of GSM to Police station. In this framework we Use diverse RFID labels for recognizing rescue vehicle, stolen Vehicles. On the off chance that Red flag is on and IR sensor is initiated, then framework gives ringer alarm to movement police. This is novel framework which encourage great answer for comprehend traffic clog.
Cerebral Microhemorrhage: A Frequent Magnetic Resonance Imaging Finding in Pediatric Patients after Cardiopulmonary Bypass
Authors: Kim Paggie P C , Nasman Benjamin W , Kinne Erica L , Oyoyo Udochukwu E , Kido Daniel K , Jacobson J P
Published: July 2017

Objectives:

This study was undertaken to estimate the incidence and burden of cerebral microhemorrhage (CM) in patients with heart disease who underwent cardiopulmonary bypass (CPB), as detected on susceptibility-weighted imaging (SWI), a magnetic resonance (MR) sequence that is highly sensitive to hemorrhagic products.

Materials and Methods:

With Institutional Review Board waiver of consent, MR imaging (MRI) of a cohort of 86 consecutive pediatric patients with heart failure who underwent heart transplantation evaluation were retrospectively reviewed for CM. A nested case–control study was performed. The CPB group consisted of 23 pediatric patients with heart failure from various cardiac conditions who underwent CPB. The control group was comprised of 13 pediatric patients with similar cardiac conditions, but without CPB history. Ten patients in the CPB group were female (age: 5 days to 16 years at the time of the CPB and 6 days to 17 years at the time of the MRI). The time interval between the CPB and MRI ranged from 11 days to 4 years and 5 months. Six patients in the control group were female, age range of 2 days to 6 years old. The number of CM on SWI was counted by three radiologists (PK, EK and DK). The differences in number of CM between groups were tested for significance using Mann–Whitney U-test, α = 0.05. Using the univariate analysis of variance model, the differences in number of CM between groups were also tested with adjustment for age at MRI.

Results:

There are statistically significant differences in CM on SWI between the CPB group and control group with more CM were observed in the CPB group without and with adjustment for age at MRI (P< 0.001).

Conclusions:

Exposure of CPB is associated with increased prevalence and burden of CM among pediatric patients with heart failure.
Endoscopic Ultrasound-Guided Choledochoduodenostomy and Enteral Palliative Stenting in Inoperable Periampullary Carcinoma
Authors: Balekuduru Avinash , Dutta Amit , Subbaraj Satyaprakash Bonthala , Vilmann Peter
Published: July 2017

Inoperable periampullary carcinoma with failed Endoscopic Retrograde CholangioPancreaticography (ERCP) could result in both biliary and duodenal obstruction. We report a case of inoperable periampullary carcinoma with duodenal obstruction and failed ERCP. She underwent successful simultaneous EUS-CDS for biliary obstruction and enteral stent for duodenal stenosis.
Endoscopic Drainage of Pancreatic Pseudocysts: An Experience with 77 Patients
Authors: Nayak Hemanta K. , Kumar Sandeep , Ghoshal Uday C. , Mohindra Samir , Mohindra Namita , Pande Gaurav , Saraswat Vivek Anand
Published: July 2017

Background: We evaluated short‑ and long‑term results of endoscopic drainage (a minimally invasive nonsurgical treatment) of pancreatic pseudocysts (PPCs) and factors associated with its success at a multilevel teaching hospital in Northern India, as such data are scanty from India. Patients and Methods: Retrospective review of records of consecutive patients undergoing endoscopic drainage of PPC from January 2002 to June 2013 was undertaken. Results: Seventy‑seven patients (56 males), median age 36 years (range, 15–73), underwent endoscopic drainage of PPC with 98% technical success. Pseudocysts drained were symptomatic (duration 11 weeks, range, 8–68), large (volume 582 mL [range, 80–2706]), located in head (n = 32, 46%), body and tail (n = 37, 54%), and infected (n = 39, 49%). Drainage procedures included cystogastrostomy (n = 54, 78%), cystoduodenostomy (n = 9, 13%), transpapillary drainage (n = 2, 3%), and multiple route (n = 4, 6%), with additional endoscopic nasocystic drainage (ENCD) in 41 (59%). Sixty‑nine patients were followed up (median 28 months, range 2–156; other eight lost to follow‑up). Complications (n = 21, 30%) included stent occlusion and migration (13), bleeding (5), perforation (2), and death (1). Endoscopic procedure had to be repeated in 19 patients (28%; 16 for sepsis, 3 for recurrence). The reasons for additional nonendoscopic treatment (n = 8, 12%) included incomplete cyst resolution (3), recurrence (2), bleeding (1), and perforation (2). Overall success rate of endoscopic drainage was 88%. Whereas infected pseudocysts were associated with poorer outcome (odds ratio [OR] 0.016; 95% confidence interval [CI] 0.001–0.037), placement of ENCD led to better results (OR 11.85; 95% CI 1.03–135.95). Conclusion: Endoscopic drainage is safe and effective for PPC.
Triangulated Equivalences Involving Gorenstein Projective Modules
Authors: Zheng Yuefei , Huang Zhaoyong
Published: July 2017

For any ringR, we show that, in the bounded derived categoryDb(ModR) of leftR-modules, the subcategory of complexes with finite Gorenstein projective (resp. injective) dimension modulo the subcategory of complexes with finite projective (resp. injective) dimension is equivalent to the stable category(resp.) of Gorenstein projective (resp. injective) modules. As a consequence, we get that ifRis a left and right noetherian ring admitting a dualizing complex, thenandare equivalent.
Multiplicative Noise Removal Based on Unbiased Box-Cox Transformation
Authors: Huang Yu-Mei , Yan Hui-Yin , Zeng Tieyong
Published: July 2017

Multiplicative noise removal is a challenging problem in image restoration. In this paper, by applying Box-Cox transformation, we convert the multiplicative noise removal problem into the additive noise removal problem and the block matching three dimensional (BM3D) method is applied to get the final recovered image. Indeed, BM3D is an effective method to remove additive Gaussian white noise in images. A maximum likelihood method is designed to determine the parameter in the Box-Cox transformation. We also present the unbiased inverse transform for the Box-Cox transformation which is important. Both theoretical analysis and experimental results illustrate clearly that the proposed method can remove multiplicative noise very well especially when multiplicative noise is heavy. The proposed method is superior to the existing methods for multiplicative noise removal in the literature.
Application of High Dimensional B-Spline Interpolation in Solving the Gyro-Kinetic Vlasov Equation Based on Semi-Lagrangian Method
Authors: Xiao Xiaotao , Ye Lei , Xu Yingfeng , Wang Shaojie
Published: July 2017

The computation efficiency of high dimensional (3D and 4D) B-spline interpolation, constructed by classical tensor product method, is improved greatly by precomputing the B-spline function. This is due to the character of NLT code, i.e. only the linearised characteristics are needed so that the unperturbed orbit as well as values of the B-spline function at interpolation points can be precomputed at the beginning of the simulation. By integrating this fixed point interpolation algorithm into NLT code, the high dimensional gyro-kinetic Vlasov equation can be solved directly without operator splitting method which is applied in conventional semi-Lagrangian codes. In the Rosenbluth-Hinton test, NLT runs a few times faster for Vlasov solver part and converges at about one order larger time step than conventional splitting code.
Constrained Interpolation Profile Conservative Semi-Lagrangian Scheme Based on Third-Order Polynomial Functions and Essentially Non-Oscillatory (CIP-CSL3ENO) Scheme
Authors: Li Qijie , Omar Syazana , Deng Xi , Yokoi Kensuke
Published: July 2017

We propose a fully conservative and less oscillatory multi-moment scheme for the approximation of hyperbolic conservation laws. The proposed scheme (CIP-CSL3ENO) is based on two CIP-CSL3 schemes and the essentially non-oscillatory (ENO) scheme. In this paper, we also propose an ENO indicator for the multimoment framework, which intentionally selects non-smooth stencil but can efficiently minimize numerical oscillations. The proposed scheme is validated through various benchmark problems and a comparison with an experiment of two droplets collision/separation. The CIP-CSL3ENO scheme shows approximately fourth-order accuracy for smooth solution, and captures discontinuities and smooth solutions simultaneously without numerical oscillations for solutions which include discontinuities. The numerical results of two droplets collision/separation (3D free surface flow simulation) show that the CIP-CSL3ENO scheme can be applied to various types of fluid problems not only compressible flow problems but also incompressible and 3D free surface flow problems.
Interaction of a Vortex Induced by a Rotating Cylinder with a Plane
Authors: Han Daozhi , Hou Yifeng , Temam Roger
Published: July 2017

In this article, we study theoretically and numerically the interaction of a vortex induced by a rotating cylinder with a perpendicular plane. We show the existence of weak solutions to the swirling vortex models by using the Hopf extension method, and by an elegant contradiction argument, respectively. We demonstrate numerically that the model could produce phenomena of swirling vortex including boundary layer pumping and two-celled vortex that are observed in potential line vortex interacting with a plane and in a tornado.
Runge-Kutta Central Discontinuous Galerkin Methods for the Special Relativistic Hydrodynamics
Authors: Zhao Jian , Tang Huazhong
Published: July 2017

This paper develops Runge-Kutta PK-based central discontinuous Galerkin (CDG) methods with WENO limiter for the one- and two-dimensional special relativistic hydrodynamical (RHD) equations, K = 1,2,3. Different from the non-central DG methods, the Runge-Kutta CDG methods have to find two approximate solutions defined on mutually dual meshes. For each mesh, the CDG approximate solutions on its dual mesh are used to calculate the flux values in the cell and on the cell boundary so that the approximate solutions on mutually dual meshes are coupled with each other, and the use of numerical flux will be avoided. The WENO limiter is adaptively implemented via two steps: the “troubled” cells are first identified by using a modified TVB minmod function, and then the WENO technique is used to locally reconstruct new polynomials of degree (2K+1) replacing the CDG solutions inside the “troubled” cells by the cell average values of the CDG solutions in the neighboring cells as well as the original cell averages of the “troubled” cells. Because the WENO limiter is only employed for finite “troubled” cells, the computational cost can be as little as possible. The accuracy of the CDG without the numerical dissipation is analyzed and calculation of the flux integrals over the cells is also addressed. Several test problems in one and two dimensions are solved by using our Runge-Kutta CDG methods with WENO limiter. The computations demonstrate that our methods are stable, accurate, and robust in solving complex RHD problems.
Emergência de plântulas e crescimento inicial de copaíba sob diferentes substratos
Authors: Jeromini Tatiane Sanches , Fachinelli Ricardo , Silva Givanildo Zildo da , Pereira Suzana Targanski Sajovic , Scalon Silvana De Paula Quintão
Published: July 2017

O objetivo do trabalho foi avaliar uma emergência e crescimento inicial de mudas de copaíba ( Copaifera langsdorffi Desf.) Sob diferentes substratos. A semeadura foi realizada nos substratos: solo, Bioplant®, solo + areia, solo + Bioplant® e solo + areia + cama-de-frango. Foram avaliadas, velocidade de emergência e crescimento de plântulas. Para uma emergência de plântulas de copaíba são indicados todos os substratos, exceto mistura solo + areia + cama-de-frango. Para o crescimento inicial, indicado pelo índice de qualidade de Dickson, o melhor substrato foi solo solo.
Modificação térmica e propriedades tecnológicas da madeira de Eucalyptus cloeziana
Authors: Huller Lenon Augusto Simon , Haselein Clóvis Roberto , Silveira Amanda Grassmann da , Menezes Walmir Marques de , Talgatti Maiara , Souza Joel Telles de , Santini Elio José
Published: July 2017

O gênero Eucalyptus é utilizado para o abastecimento da maior parte da indústria de base florestal no Brasil, mas existem diversos questionamentos acerca da qualidade do material. O tratamento térmico está sendo difundido no Brasil, visando melhorar as propriedades iniciais da madeira. O objetivo desta pesquisa foi estudar o efeito do tratamento térmico nas propriedades físicas e na resistência mecânica de Eucalyptus cloeziana. Foram amostradas cinco árvores, com aproximadamente 21 anos, sendo seccionadas as duas primeiras toras com comprimento de 3 m cada. Para o tratamento térmico foram aplicadas temperaturas finais de 160 ºC e 210 ºC, durante 1 h. As propriedades físicas avaliadas foram: umidade de equilíbrio, redução de massa, perda de massa específica, coeficiente de inchamento total e coeficiente de anisotropia. A determinação da resistência mecânica deu-se por meio do teste de resistência máxima ao impacto. Houve redução na massa do material após a aplicação das temperaturas. As demais propriedades físicas avaliadas indicaram que o tratamento térmico foi eficiente no aumento da estabilidade dimensional da espécie, principalmente com a temperatura de 210 °C. No entanto, verificou-se que a resistência ao impacto foi drasticamente afetada pelo aumento da temperatura.
Modelos para estimativa de variáveis florestais com a utilização de imagens multiespectrais
Authors: Machado Igor Eloi Silva , Santos Micael Moreira , Giongo Marcos , Carvalho Edmar Vinicius de , Ganassoli Neto Eduardo
Published: July 2017

Técnicas de sensoriamento remoto em monitoramento vegetacional vêm sendo cada vez mais utilizadas e melhoradas. A utilização dessas técnicas é uma alternativa potencial para embasar inventários florestais. O presente trabalho tem por objetivo estimar variáveis florestais utilizando imagens multiespectrais associadas a informações obtidas em levantamento de campo. Foi estudada uma área de floresta tropical com aproximadamente 44.728,5 ha. Foi feito um inventário florestal 100%, fornecendo a volumetria das árvores com circunferência a 1,30 m acima do solo (CAP) superior a 110 cm. Foi utilizada a cena 227/069 do Landsat 7, sendo feita correção radiométrica da imagem, obtendo-se os valores de reflectância. Foram avaliados três tamanhos de parcelas circulares (40, 80 e 120 m de raio) para ajuste dos modelos lineares. O comportamento espectral da área apresentou respostas baixas na região do visível (TM1, TM2 e TM3), aumentando no infravermelho próximo (TM4). A banda TM4 apresentou maior correlação com o CAP (R: -0,5203). O melhor modelo para estimativa do volume exibiu R²aj = 0,387 e Syx = 30,199%, estimando um volume médio de 39,61 m³ ha-1. Os resultados demonstraram viabilidade do uso de imagens de satélites para estimativa de variáveis dendrométricas.
Apps para la innovación docente en Criminología
Authors: Cerezo Domínguez Ana Isabel , Arenas García Lorea
Published: July 2017

Resumen: La aparición de dispositivos móviles con internet o smartphones han revolucionado el modo de interactuar con nuestro entorno. Gracias a las prestaciones de las aplicaciones de software o Apps es posible llevar a cabo múltiples tareas de forma simultánea sin barreras geográficas y escaso presupuesto. El presente estudio tiene como objeto identificar sus ventajas y aplicaciones en los estudios de Criminología de cara a reinventar la investigación cualitativa en la acción docente. Los resultados esperados permiten anticipar un desarrollo de las competencias de los alumnos con relación al manejo de las TIC en su formación académica, en el planteamiento de proyectos de investigación y en la elaboración de informes científicos. Palabras clave: TIC, Apps, innovación docente, metodología, técnicas cualitativas, competencias digitales.
Desarrollo integral de competencias en análisis de la información bibliográfica y diseño e interpretación de experimentos a lo largo de una única asignatura del Grado en Biotecnología
Authors: Sanmartín Santos Isaias , Lloret Alcañiz Ana , Ventura Gonzalez Ignacio , Prieto Ruiz Jesús
Published: July 2017

La búsqueda y análisis de la información bibliográfica y el diseño e interpretación de experimentos son competencias íntimamente relacionadas y muy importantes en la formación en biotecnología, sin embargo no se encuentran bien contempladas de forma específica en los planes de estudio. Proponemos un plan de desarrollo integrado para la adquisición conjunta de estas competencias que puede implementarse a lo largo de una asignatura de los primeros cursos del Grado en biotecnología.Palabras clave: competencias, formación, actividades de enseñanza-aprendizaje, alineamiento constructivo, búsqueda de la información bibliográfica, análisis de la información bibliográfica, diseño de experimentos, interpretación de experimentos
Diseño de una rúbrica para la obtención de criterios de evaluación de los Trabajos Final de Grado de la Escuela Técnica Superior de Ingeniería Agronómica y del Medio Natural
Authors: Llorens Molina Juan Antonio , Verdeguer Mercedes , García Breijo Francisco , Roselló Josefa , García Alberto , Rubio Constanza , Vargas María , Santamarina María Pilar
Published: July 2017

El presente trabajo recoge parte de los resultados obtenidos en el marco del proyecto de innovación docente “Herramientas para la planificación, realización y valoración de los Trabajo Fin de Grado (TFGs)”. Se pretende resolver la problemática a la que se enfrenta el alumnado, los tutores y los tribunales en cuanto a los criterios de valoración de los TFGs, aportando herramientas para su evaluación (rúbricas). Actualmente, no existen unos criterios claros y objetivos para la evaluación de los TFGs, quedando en ocasiones su calificación sometida a valoraciones subjetivas, por parte del tribunal evaluador. Así, es más detallado el documento para la evaluación de las competencias trasversales que el utilizado para la evaluación del TFG. Por tanto, es necesario desarrollar un documento “Guía del Trabajo Fin de Grado”, que proporcione instrumentos para una adecuada y óptima planificación y evaluación de los TFGs. Uno de los puntos clave del proyecto, ha sido la elaboración de una  rúbrica con indicadores medibles que faciliten y clarifiquen la evaluaciónn de los TFGs. Dicha rúbrica, se pasará a los diferentes grupos de interés (profesorado, alumnado y comisiones académicas) para mejorarla y validarla. Palabras clave: evaluación, valoración, criterios, rúbrica
Aprendizaje activo del alumnado en la asignatura “Energía solar fototérmica”
Authors: Paya Jorge
Published: July 2017

Resumen En el presente trabajo se describe la metodología adoptada en la asignatura de “Energía solar fototérmica” de la Universitat Politècnica de València. Con el objetivo de favorecer el aprendizaje activo de los alumnos, se plantea una metodología basada en intercalar frecuentemente teoría con problemas, tests de autoevaluación, prácticas, proyectos o juegos de empresa. Frente a experiencias anteriores en la misma asignatura, se consiguió una asistencia altísima (92% de media). El sistema de evaluación escogido (60% mediante trabajos prácticos) parece favorable a un 94% de los alumnos de cara a asimilar mejor los conceptos. Un 88% de ellos considera que la participación activa en clase favorece la asimilación de conceptos y el desarrollo de competencias. En la asignatura, los alumnos realizan una presentación en grupos de dos. Un 75% de los alumnos está de acuerdo en que ésto mejoró su capacidad para comunicar resultados en público. Palabras clave: evaluación por proyectos, competencias transversales, aprendizaje activo
La investigación visita el aula: la promoción del conocimiento y la práctica de la investigación como estrategia docente innovadora
Authors: Santirso Faraj A. , Martin-Fernández Manuel , Marco Miriam , Vargas Viviana , Lila Marisol , Gracia Enrique
Published: July 2017

En los últimos años cada vez son más los autores que subrayan los beneficios de la enseñanza dirigida desde la investigación y de la integración de la investigación en el currículum de las estudiantes de grado. El objetivo principal de este proyecto de innovación educativa es potenciar el aprendizaje basado en la promoción del conocimiento y la práctica de la investigación de manera que se enfaticen los procesos que se generan en el quehacer investigador y se utilice un acercamiento en el que el estudianteLa investigación visita el aula: la promoción del conocimiento y la práctica de lainvestigación como estrategia docente innovadora2017, Universitat Politècnica de ValènciaCongreso IN-RED (2017)desempeñe el rol de participante activo. A su vez, se pretende evaluar si existen diferencias en las actitudes hacia la investigación entre el grupo que recibe la intervención y un grupo control. Los resultados muestran que el cuestionario de actitudes hacia la investigación es una herramienta fiable en la evaluación de esta variable. Utilizando este cuestionario, se observan diferencias significativas a favor del grupo de intervención en la relevancia percibida de la investigación, la predisposición a elegir la investigación como profesión, la competencia percibida para investigar y el papel del profesor.Palabras clave: Aprendizaje basado en investigación,innovación docente, actitudes hacia la investigación.
Preferencias en el aprendizaje de Investigación Operativa: Docencia inversa y presencial
Authors: Bas María Del Carmen , Segura Marina , Maroto Concepción , Ginestar Concepción
Published: July 2017

La creciente utilización de los recursos en línea en la formación de administración y dirección de empresas aparece tanto en el modelo de docencia inversa como complemento a la docencia presencial. Los objetivos del trabajo son obtener las preferencias de los alumnos y valorar los recursos docentes (libros, diapositivas y videos) en el aprendizaje de Investigación Operativa del Grado de Administración y Administración de Empresas. Las preferencias se han obtenido mediante AHP, método cuantitativo apropiado para obtener y agregar preferencias individuales, generando preferencias agregadas de grupo. Además, hemos analizado los recursos docentes mediante la escala de Likert, método cualitativo muy utilizado en los estudios de educación superior. Los alumnos que prefieren más los videos son los de docencia inversa, aunque los videos también han influido en los estudiantes de docencia presencial. En general, las diapositivas, que sintetizan los conceptos, representan el recurso más utilizado en la docencia presencial. Sin embargo, existen diferencias significativas entre las preferencias de los alumnos por grupo. Por último, los videos también contribuyen a la adquisición de competencias, principalmente al aprendizaje autónomo de los alumnos. Los resultados y las sugerencias recibidas nos animan a seguir desarrollando videos con casos prácticos y aplicaciones reales. Palabras clave: Preferencias, materiales docentes, docencia inversa, aprendizaje activo, aprendizaje colaborativo
Hacia la traducción integral de vídeo charlas educativas
Authors: Turró Ribalta Carlos , Piqueras Santiago , Pérez Alejandro , Jiménez Manuel , Sanchis Albert , Civera Jorge , Juan Alfons
Published: July 2017

Cada vez son más las universidades e instituciones educativas que apuestan por la producción de recursos tecnológicos para diversos usos en enseñanza superior. El grupo de investigación MLLP lleva años colaborando con el ASIC de la UPV con el ﬁn de enriquecer estos materiales haciendo uso de tecnologías de machine learning, como son el reconocimiento automático del habla, la traducción automática o la síntesis de voz. En este trabajo, bajo el marco del Plan de Docencia en Red 2016-17, abordaremos la traducción integral de vídeos docentes mediante el uso de estas tecnologías.Keywords: multilingüe, traducción, MOOCs