bluuebunny/crossref_metadata_2025 huggingface dataset:
The Multiagent Planning Problem
Authors: Kalmár-Nagy Tamás , Giardini Giovanni , Bak Bendegúz Dezső
Published: February 2017

The classical Multiple Traveling Salesmen Problem is a well-studied optimization problem. Given a set ofngoals/targets andmagents, the objective is to findmround trips, such that each target is visited only once and by only one agent, and the total distance of these round trips is minimal. In this paper we describe the Multiagent Planning Problem, a variant of the classical Multiple Traveling Salesmen Problem: given a set ofngoals/targets and a team ofmagents,msubtours (simple paths) are sought such that each target is visited only once and by only one agent. We optimize for minimum time rather than minimum total distance; therefore the objective is to find the Team Plan in which the longest subtour is as short as possible (a min–max problem). We propose an easy to implement Genetic Algorithm Inspired Descent (GAID) method which evolves a set of subtours using genetic operators. We benchmarked GAID against other evolutionary algorithms and heuristics. GAID outperformed the Ant Colony Optimization and the Modified Genetic Algorithm. Even though the heuristics specifically developed for Multiple Traveling Salesmen Problem (e.g.,k-split, bisection) outperformed GAID, these methods cannot solve the Multiagent Planning Problem. GAID proved to be much better than an open-source Matlab Multiple Traveling Salesmen Problem solver.
Effect of Genital Sampling Site on the Detection and Quantification ofUreaplasmaSpecies with Quantitative Polymerase Chain Reaction during Pregnancy
Authors: Faron Gilles , Vancutsem Ellen , Naessens Anne , Buyl Ronald , Gucciardo Leonardo , Foulon Walter
Published: February 2017

Objective. This study aimed to compare the qualitative and quantitative reproducibility of quantitative PCR (qPCR) forUreaplasmaspecies(Ureaplasmaspp.)throughout pregnancy and according to the genital sampling site.Study Design. Between 5 and 14 weeks of gestation (T1), vaginal, fornix, and two cervical samples were taken. Sampling was repeated during the 2nd (T2) and 3rd (T3) trimester in randomly selected T1 positive and negative women. Qualitative and quantitative reproducibility were evaluated using, respectively, Cohen’s kappa (κ) and interclass correlation coefficients (ICC) and repeated measures ANOVA on the log-transformed mean number of DNA copies for each sampling site.Results. During T1, 51/127 women were positive forU. parvumand 8 forU. urealyticum(4 patients for both). Sampling was repeated for 44/55 women at T2 and/or T3; 43 (97.7%) remained positive at the three timepoints.κranged between 0.83 and 0.95 and the ICC for cervical samples was 0.86.Conclusions. Colonization byUreaplasmaspp. seems to be very constant during pregnancy and vaginal samples have the highest detection rate.
Myopericarditis and Pericardial Effusion as the Initial Presentation of Systemic Lupus Erythematosus
Authors: Bezwada Prema , Quadri Ahmed , Shaikh Atif , Ayala-Rodriguez Ceasar , Green Stuart
Published: February 2017

Myopericarditis with a pericardial effusion as the initial presenting feature of SLE is uncommon. We report an unusual case of myopericarditis and pericardial effusion with subsequent heart failure, as the initial manifestation of SLE. The timely recognition and early steroid administration are imperative in SLE-related myopericarditis with cardiomyopathy to prevent the mortality associated with this condition.
A Novel Multilevel-SVD Method to Improve Multistep Ahead Forecasting in Traffic Accidents Domain
Authors: Barba Lida , Rodríguez Nibaldo
Published: February 2017

Here is proposed a novel method for decomposing a nonstationary time series in components of low and high frequency. The method is based on Multilevel Singular Value Decomposition (MSVD) of a Hankel matrix. The decomposition is used to improve the forecasting accuracy of Multiple Input Multiple Output (MIMO) linear and nonlinear models. Three time series coming from traffic accidents domain are used. They represent the number of persons with injuries in traffic accidents of Santiago, Chile. The data were continuously collected by the Chilean Police and were weekly sampled from 2000:1 to 2014:12. The performance of MSVD is compared with the decomposition in components of low and high frequency of a commonly accepted method based on Stationary Wavelet Transform (SWT). SWT in conjunction with the Autoregressive model (SWT + MIMO-AR) and SWT in conjunction with an Autoregressive Neural Network (SWT + MIMO-ANN) were evaluated. The empirical results have shown that the best accuracy was achieved by the forecasting model based on the proposed decomposition method MSVD, in comparison with the forecasting models based on SWT.
Augmenting Function for Infarction from Infection: Impella 2.5 for Ischemic Cardiogenic Shock Complicating Sepsis
Authors: George Praveen , Srivastava Mukta C. , Ludmir Jonathan , Reed Robert M. , Tewelde Semhar Z. , Gupta Anuj , McCurdy Michael T.
Published: February 2017

Cardiac dysfunction is a common complication of sepsis in individuals with preexisting coronary disease and portends a poor prognosis when progressing to ischemic cardiogenic shock. In this setting, maximal medical therapy in isolation is often inadequate to maintain cardiac output for patients who are poor candidates for immediate revascularization. Furthermore, the use of vasopressors and inotropes increases myocardial demand and may lead to further injury. Percutaneous ventricular assist devices provide a viable option for management of severe shock with multiorgan failure. The Impella is one of several novel mechanical support systems that can effectively augment cardiac output while reducing myocardial demand and serve as a bridge to recovery from severe hemodynamic compromise. This case report describes the successful utilization of the Impella 2.5 in a patient with baseline profound anemia and coronary artery disease (CAD) presenting in combined distributive and cardiogenic shock associated with a type 2 myocardial infarction complicating sepsis.
Repair of Osteochondral Defects Using Human Umbilical Cord Wharton’s Jelly-Derived Mesenchymal Stem Cells in a Rabbit Model
Authors: Liu Shuyun , Jia Yanhui , Yuan Mei , Guo Weimin , Huang Jingxiang , Zhao Bin , Peng Jiang , Xu Wenjing , Lu Shibi , Guo Quanyi
Published: February 2017

Umbilical cord Wharton’s jelly-derived mesenchymal stem cell (WJMSC) is a new-found mesenchymal stem cell in recent years with multiple lineage potential. Due to its abundant resources, no damage procurement, and lower immunogenicity than other adult MSCs, WJMSC promises to be a good xenogenous cell candidate for tissue engineering. This in vivo pilot study explored the use of human umbilical cord Wharton’s jelly mesenchymal stem cells (hWJMSCs) containing a tissue engineering construct xenotransplant in rabbits to repair full-thickness cartilage defects in the femoral patellar groove. We observed orderly spatial-temporal remodeling of hWJMSCs into cartilage tissues during repair over 16 months, with characteristic architectural features, including a hyaline-like neocartilage layer with good surface regularity, complete integration with adjacent host cartilage, and regenerated subchondral bone. No immune rejection was detected when xenograft hWJMSCs were implanted into rabbit cartilage defects. The repair results using hWJMSCs were superior to those of chondrogenically induced hWJMSCs after assessing gross appearance and histological grading scores. These preliminary results suggest that using novel undifferentiated hWJMSCs as seed cells might be a better approach than using transforming growth factor-β-induced differentiated hWJMSCs for in vivo tissue engineering treatment of cartilage defects. hWJMSC allografts may be promising for clinical applications.
Does i-T744C P2Y12 Polymorphism Modulate Clopidogrel Response among Moroccan Acute Coronary Syndromes Patients?
Authors: Hassani Idrissi Hind , Hmimech Wiam , El Khorb Nada , Akoudad Hafid , Habbal Rachida , Nadifi Sellama
Published: February 2017

Background. An interindividual variability in response to Clopidogrel has been widely described in patients with acute coronary syndromes (ACS). The contribution of genetics on modulating this response was widely discussed. The objective of our study was to investigate the potential effect of i-T744C P2Y12 polymorphism on Clopidogrel response in a sample of Moroccan ACS patients. We tried also to determine the frequency of this polymorphism among Moroccan ACS compared to healthy subjects. Methods and Results. 77 ACS patients versus 101 healthy controls were recruited. DNA samples were genotyped by PCR-RFLP method. The VerifyNow assay was used to evaluate platelet function among ACS patients. Our results show that the mutant allele C was more frequent among ACS ST (+) than ST (−) patients (39% versus 19.8%, resp.), when the wild-type allele was more represented in the ACS ST (−) group (80.2%). The C allele frequency was higher among resistant than nonresistant patients (30% versus 20.8%, resp.). Comparison of ACS patients and healthy controls shows higher frequency of mutant C allele among cases compared to controls (22.73% versus 19.31%, resp.); there was a statistically significant association of the recessive and additive transmission models with the ACS development risk (OR [95% CI] = 1.78 [1.58–5.05], P=0.01 and OR [95% CI] = 1.23 [0.74–2.03], P<0.001, resp.), increasing thus the association of this polymorphism with the pathology. Conclusion. Our results suggest that this polymorphism may have a potential effect on Clopidogrel response among our Moroccan ACS patients and also on ACS development.
Reliability Analysis of 6‐Component Star Markov Repairable System with Spatial Dependence
Authors: Wang Liying , Yang Qing , Tian Yuran
Published: February 2017

Star repairable systems with spatial dependence consist of a center component and several peripheral components. The peripheral components are arranged around the center component, and the performance of each component depends on its spatial “neighbors.” Vector‐Markov process is adapted to describe the performance of the system. The state space and transition rate matrix corresponding to the 6‐component star Markov repairable system with spatial dependence are presented via probability analysis method. Several reliability indices, such as the availability, the probabilities of visiting the safety, the degradation, the alert, and the failed state sets, are obtained by Laplace transform method and a numerical example is provided to illustrate the results.
Synergy of Electrostatic and van der Waals Interactions in the Adhesion of Epoxy Resin with Carbon-Fiber and Glass Surfaces
Authors: Yoshizawa Kazunari , Semoto Takayuki , Hitaoka Seiji , Higuchi Chisa , Shiota Yoshihito , Tanaka Hiromasa
Published: February 2017

The adhesion between epoxy resin and carbon fiber is investigated by using pair interaction energy decomposition analysis (PIEDA), by which the adhesive interaction energy and adhesive force can be partitioned into the electrostatic, exchange-repulsion, charge-transfer, and van der Waals (dispersion) contributions. The three stabilizing electrostatic, charge-transfer, and dispersion effects are correlated with the destabilizing exchange-repulsion effect. The surface structures of carbon fiber are modeled by the basal face, the armchair-edge structure, and the OH-functionalized armchair-edge structure of graphite. The surface of α-cristobalite (covered with OH groups), which can be viewed as a good model of a hydrophilic glass surface, is also studied. Adhesive properties of the model interfaces are evaluated on the basis of the binding energy of the resin with the carbon and glass surfaces and the adhesive force acting at the interfaces in terms of energy decomposition. PIEDA calculations demonstrate that only dispersion interactions can substantially work in the hydrophobic surfaces of the basal face and armchair-edge structures. This is a direct consequence of the electrostatic and charge-transfer interactions being cancelled by the exchange-repulsion interactions. On the other hand, both electrostatic and dispersion interactions are significant in the OH-functionalized surfaces of the armchair edge of graphite and α-cristobalite.
C–H Activation-Based Transformation of Naphthalenes to 3-Iodo-2-naphthylboronic Acid Derivatives for Use in Iterative Coupling Synthesis of Helical Oligo(naphthalene-2,3-diyl)s
Authors: Yamamoto Takeshi , Ishibashi Aoi , Koyanagi Masashi , Ihara Hideki , Eichenauer Nils , Suginome Michinori
Published: February 2017

Oligo(naphthalene-2,3-diyl)s were synthesized by iterative cross-coupling of 1,8-diaminonaphthalene-modified 3-iodo-2-naphthylboronic acids prepared from naphthalenes via Ir-catalyzed C–H borylation, Ru-catalyzed ortho-C–H silylation directed by an anthranilamide-modified boronyl group, and subsequent iododesilylation. The introduction of a chiral diol to the retained terminal boronyl group allowed selective induction of P- or M-helical conformations.
Fractured silences and youth dystopia in Maïssa Bey’s theatrical writings
Authors: Mehta Brinda J.
Published: February 2017

This study examines youth dystopia and fractured silences in the theatrical writings of Maïssa Bey. These silences are a narrative strategy to represent the ambivalent experiences that dominate and circumscribe the lives of Algerian youth – clandestine migration, child suicide, and intellectual confinement in the prison system. These fractures are located in the liminal spaces between speech and silence, life and death, hope and despair, resistance and surrender to provide alter-narratives articulated from the margins of society. The characters’ painful silences are nonetheless reconfigured into a fragmented and introverted language of thwarted words as a means to give voice to silence and social dispossession. Bey’s writings represent a form of testimonial writing and a denunciation of Algeria’s postcolonial malaise.
The complicated identity negotiation of women in Kangni Alemdjrodo’s Chemin de Croix and Gustave Akakpo’s Catharsis
Authors: Koriko Hamzat , Weaver-Hightower Rebecca
Published: February 2017

Third World feminists have long worked to bring to postcolonial studies a more nuanced reading of women’s lives in formerly colonized spaces. Postcolonial drama provides a fitting venue for such Third World feminists desiring to represent the realities of postcolonial African women. This article brings into conversation the post-colonial dramatists, the francophone playwrights, Kangni Alemdjrodo and Gustave Akapko, who have heretofore been unmentioned for their work as a catalyst for social change or as commentators on Third World feminism. Alemdjrodo and Akapko, both Togolese playwrights, are significant for their efforts to create space for debates over the complicated social expectations and identity negotiations of contemporary African women. In particular, Almedjrodo’s play Chemin de Croix (2005) and Akakpo’s play Catharsis (2006) deserve further analysis for their exploration through drama of the dilemmas many African women face when choosing between ‘traditional’ views of African femininity and western feminism as part of a personal struggle for autonomy and empowerment.
Reviews
Authors: Boudraa Nabil , Martinon Jean-Paul , Miraglia Anne Marie , Miraglia Anne Marie , Oktapoda Efstratia , Oktapoda Efstratia
Published: February 2017

We Are Imazighen: The Development of Algerian Berber Identity in Twentieth-Century Literature and Culture, Fazia Aitel (2014) Gainseville: University Press of Florida, 324 pp., ISBN-10: 0813049393, h/bk, $74.95

La Transmission littéraire et cinématographique du génocide des Tutsi au Rwanda, Virginie Brinker (2015) Paris: Classiques Garnier, 481 pp., ISBN: 9782812432545, p/bk, £44.48

Littératures québécoise et acadienne contemporaines au prisme de la ville, Anne-Yvonne Julien and André Magord (2014) Rennes: Presses Universitaires de Rennes, 528 pp., ISBN: 9782753532892, p/bk, 24 €

A Practical Guide to French Harki Literature, Keith Moser (ed.) (2014) Lanham: Lexington Books, xv + 256 pp., ISBN: 9780739190098, h/bk, $90.00 (£60.00)

Francographies: Identité et altérité dans les espaces francophones européens, Bainbrigge Susan, Joy Charnley et Caroline Verdier (éd.) (2010) New York: Peter lang Publishing, 418 pp., ISBN: 9781433103483, h/bk

Aimé Césaire à l’oeuvre, Cheymol Marc et Philippe Ollé-Laprune (2010) Paris: Éditions des archives contemporaines, Agence Universitaire de la Francophonie (AUF), 270 pp., ISBN: 9782813000408, p/bk, €34.00
A Frequency Reconfigurable MIMO Antenna System for Cognitive Radio Applications
Authors: Raza A. , Khan Muhammad U. , Tahir Farooq A.
Published: February 2017

In this paper, a two element frequency reconfigurable multiple-input-multiple-output (MIMO) antenna system is presented. The proposed antenna consists of miniaturized patch antenna elements, loaded with varactor diodes to achieve frequency reconfigurability. The antenna has bandwidth of 30 MHz and provides a smooth frequency sweep from 2.12 GHz to 2.4 GHz by varying the reverse bias voltage of varactor diode. The antenna is designed on an FR4 substrate and occupies a space of 50×100 × 0.8 mm
Assessing the Role of Remittances and Financial Deepening in Growth: The Experience of Lebanon
Authors: Abosedra Salah , Fakih Ali
Published: February 2017

We investigate the relationship between remittances, financial deepening and the growth of the Lebanese economy using quarterly data from 1993 to 2011. Our results provide strong support for the theoretical contention that remittances and financial development share a robust long-run relationship with growth in Lebanon. However, the results indicate that short-run effects on growth volatility are statistically insignificant from financial development but strongly significant from remittances. These results extend recent findings on the financial development, remittances and growth nexus and imply that benefits expected from remittances for addressing growth volatility in Lebanon materialize more than those associated with financial development.
ESR dating of sea-floor hydrothermal barite: contribution of 228Ra to the accumulated dose
Authors: Toyoda Shin , Fujiwara Taisei , Uchida Ai , Ishibashi Jun-Ichiro
Published: February 2017

Electron spin resonance (ESR) dating of barite has been recently developed and is now practically applied to barite extracted from sea-floor hydrothermal deposits. The evolution of the accumulated dose to barite is simulated for an actual sample of barite in sea-floor hydrothermal sulfide deposit to find that the contribution of radioactive nuclei of 228Ra series can be important for the samples younger than 300 years old. Currently, any date over 50 years should be considered a maximum value when the 228Ra content is not obtained. The method to estimate the contribution from 228Ra series has to be developed in future for those in which 228Ra is not detected. The age limit of ESR dating of barite would be 5000 to 6000 years due to the decay of 226Ra, which is also found by simulation of the accumulated dose.
Testing Equality of Treatments under an Incomplete Block Crossover Design with Ordinal Responses
Authors: Lui Kung-Jong
Published: February 2017

The generalized odds ratio (GOR) for paired sample is considered to measure the relative treatment effect on patient responses in ordinal data. Under a three-treatment two-period incomplete block crossover design, both asymptotic and exact procedures are developed for testing equality between treatments with ordinal responses. Monte Carlo simulation is employed to evaluate and compare the finite-sample performance of these test procedures. A discussion on advantages and disadvantages of the proposed test procedures based on the GOR versus those based on Wald’s tests under the normal random effects proportional odds model is provided. The data taken as a part of a crossover trial studying the effects of low and high doses of an analgesic versus a placebo for the relief of pain in primary dysmenorrhea over the first two periods are applied to illustrate the use of these test procedures.
Nano-12-Tungstophosporic Acid Cesium Salt Synthesized by Ultrasound as Catalyst for Alkylation of Benzene with dec-1-ene
Authors: Akbay Elif , Demir Gülberk
Published: February 2017

Nano 12-tungtophosphoric acid cesium salt (Cs-TPA) was synthesized under ultrasonic irradiation in nanoscale. The obtained catalyst was characterized by various methods. These analyzes indicate that the chemical structure and crystallinity of nano Cs-TPA remained unchanged while its morphology was found to be different from traditional Cs-TPA which is in irregular shape, becoming spherical with an average particle size of about 50 nm.

Nano Cs-TPA was examined in the alkylation of benzene with dec-1-ene, its catalytic activity was remarkably enhanced compared to its original state. The catalyst reusability experiment also showed that the activity of nano Cs-TPA does not decrease even after five reused cycles.
Analysis about Heat Transfer of Vegetables during Cold Shock Treatment and Preservation Quality after Storage
Authors: Zhao Yang , Mingfeng Chen , Aiqiang Chen , Na Zhang , Songsong Zhao
Published: February 2017

This study investigated the heat transfer mechanism and preservation quality of axisymmetric vegetables during cold shock treatment (CST). A simulation model of heat transfer was developed based on geometrical and biological characteristics of the vegetables by finite element difference method. CST for cucumbers and carrots with cold water at 0°C (40 min), 2°C (20, 40 and 60 min) and 4°C (40 min) was conducted to evaluate the relationships between heat transfer characteristics and preservation quality. The comparative analysis shown that the simulated results agreed well with measured results. Meanwhile, in terms of weight loss, firmness and POD activity, CST with cold water at 2°C for 40 min could achieve the most positive effect on preserving cucumbers. The cucumber during treatment experienced whole variable temperature stage and appropriate constant temperature stage so as to reach optimal preservation quality.
Nurse-Environment Interactions in the Development of Cultural Competence
Authors: Blanchet Garneau Amélie , Pepin Jacinthe , Gendron Sylvie
Published: February 2017

Studies on the development of cultural competence among healthcare providers tend to focus on the clinical encounter, with little attention paid to the environment. In this paper, results from a grounded theory study conducted with nurses and students to understand cultural competence development are presented; with a focus on findings that call particular attention to nurse-environment interactions. Two concurrent processes, as students and nurses develop cultural competence through interactions with their environment, were identified: “dealing with structural constraints” and “mobilizing social resources”. These dynamic interactions between healthcare providers and the larger structures of healthcare systems raise critical questions about the power of healthcare providers to influence the structures that shape their practice. The intersection of nursing theory with social and critical theories is essential to gain a comprehensive understanding of cultural competence development and to transform healthcare providers’ education in the service of social justice and health equity.
On narrowing the gap between verification and systematic testing
Authors: Christakis Maria
Published: February 2017

Our work on narrowing the gap between verification and systematic
testing has two directions: (1) complementing verification with
systematic testing, and (2) pushing systematic testing toward
reaching verification.
In the first direction, we explore how to effectively combine static
analysis with systematic testing, so as to guide test generation
toward properties that have not been previously checked by a static
analyzer in a sound way. This combination significantly reduces the
test effort while checking more unverified properties.
In the second direction, we push systematic testing toward checking as
many executions as possible of a real and complex image parser, so as
to prove the absence of a certain class of errors. This verification
attempt required no static analysis or source code annotations; our
purely dynamic techniques targeted the verification of the parser
implementation, including complicated assembly patterns that most
static analyses cannot handle.
Neural Network Classifier for Fighter Aircraft Model Recognition
Authors: Roopa K. , Rama Murthy T. V. , Prasanna Raj P. Cyril
Published: February 2017

Fighter aircraft recognition is important in military applications to make strategic decisions. The complexity lies in correctly identifying the unknown aircraft irrespective of its orientations. The work reported here is a research initiative in this regard. The database used here was obtained by using rapid prototyped physical models of four classes of fighter aircraft: P51 Mustang, G1-Fokker, MiG25-F, and Mirage 2000. The image database was divided into the training set and test set. Two feature sets, Feature Set1 (FS1) and FS2, were extracted for the images. FS1 consisted of 15 general features and FS2 consisted of 14 invariant moment features. Four multilayered feedforward backpropagation neural networks were designed and trained optimally with the normalized feature sets. The neural networks were configured to classify the test aircraft image. An overall accuracy of recognition of 91% and a response time of 3 s were achieved for the developed automatic fighter aircraft model image recognition system.
A studying on load transfer in carbon nanotube/epoxy composites under tension
Authors: Viet N. V. , Wang Q. , Kuo W. S.
Published: February 2017

The shear-lag model is developed to study the effect of geometry and material properties of epoxy and carbon nanotubes on load transfer in carbon nanotube/epoxy composites under tension. The results from proposed shear-lag model are validated by finite element method and the Haque’s model. Results show that the aspect ratio of the half-length to the outer radius of carbon nanotubes and their layer number have significant influence on load transfer in the composites. On the other hand, this research reveals new findings, which are not reported in other previous works. That is, no noticeable influences of the epoxy Young’s modulus and the interface shear modulus between epoxy matrix and carbon nanotube layers are found on load transfer in terms of the saturated stress length. In addition, the carbon nanotube volume percentage is found not affecting the load transfer. This research presents a better understanding on mechanical properties of carbon nanotube/epoxy composites.
Geometrically nonlinear large deformation of CNT-reinforced composite plates with internal column supports
Authors: Zhang L. W.
Published: February 2017

The geometrical nonlinear analysis of internally supported nanocomposite plates subjected to a uniformly distributed load is carried out. This study investigates the effects of internal point/column supports on the large deformation bending of nanocomposite plates reinforced by carbon nanotubes (CNTs) with different types of distributions, namely, uniform and two kinds of functionally graded distributions through the thickness of the plates. Two-dimensional displacement field of the plate is approximated by a set of Improved Moving Least Squares (IMLS) functions. The arc-length iterative algorithm with the modified Newton method is employed to obtain the nonlinear response of nanocomposite plates. Convergence studies indicate the validity and effectiveness of the element-free IMLS-Ritz method. The effects of plate thickness-to-width ratio, volume fraction ratio, and plate aspect ratio on the large deformation behavior of nanocomposite plates under various boundary conditions are examined. To the best of the authors’ knowledge, the problem has not been attempted in the open literature.
Error estimates for higher-order finite volume schemes for convection–diffusion problems
Authors: Kröner Dietmar , Rokyta Mirko
Published: February 2017

It is still an open problem to provea priorierror estimates for finite volume schemes of higher order MUSCL type, including limiters, on unstructured meshes, which show some improvement compared to first order schemes. In this paper we use these higher order schemes for the discretization of convection dominated elliptic problems in a convex bounded domainΩin ℝ2and we can prove such kind of ana priorierror estimate. In the part of the estimate, which refers to the discretization of the convective term, we gainh1/2. Although the original problem is linear, the numerical problem becomes nonlinear, due to MUSCL type reconstruction/limiter technique.
Calculus using proximities: a mathematical approach in which students can actually prove theorems
Authors: O’Donovan Richard
Published: February 2017

Teaching and learning calculus are notoriously difficult and the didactic solutions may involve resorting to intuitive but vague definitions or informal gestures offered as proofs. The teaching literature is rife with examples of metaphors, adverb manipulations and descriptions of what happens “just before” the limit. It is then difficult to leave the domain of the mental image, thus losing the training in rigour. The author (with Karel Hrbacek and Olivier Lessmann) has endeavoured a radically different approach with the objective of training students to prove theorems while preserving both intuition and mathematical rigour. Hence we change the mathematical setting rather than the didactic setting. The result (which is a by-product of nonstandard analysis) has been used in several high schools in Geneva – Switzerland – for over ten years.
Using Probe Vehicle Data for Automatic Extraction of Road Traffic Parameters
Authors: Roman Popescu Maria Alexandra
Published: February 2017

Through this paper the author aims to study and find solutions for automatic detection of traffic light position and for automatic calculation of the waiting time at traffic light. The first objective serves mainly the road transportation field, mainly because it removes the need for collaboration with local authorities to establish a national network of traffic lights. The second objective is important not only for companies which are providing navigation solutions, but especially for authorities, institutions, companies operating in road traffic management systems. Real-time dynamic determination of traffic queue length and of waiting time at traffic lights allow the creation of dynamic systems, intelligent and flexible, adapted to actual traffic conditions, and not to generic, theoretical models. Thus, cities can approach the Smart City concept by boosting, efficienting and greening the road transport, promoted in Europe through the Horizon 2020, Smart Cities, Urban Mobility initiative.
A New Algorithm for the Approximation of the Schrödinger Equation
Authors: LIN Rong-an , Simos Theodore E.
Published: February 2017

In this paper a four stages twelfth algebraic order symmetric two-step method with vanished phase-lag and its first, second, third, fourth and fifth derivatives is developed for the first time in the literature. For the new proposed method: (1) we will study the phase-lag analysis, (2) we will present the development of the new method, (3) the local truncation error (LTE) analysis will be studied. The analysis is based on a test problem which is the radial time independent Schrödinger equation, (4) the stability and the interval of periodicity analysis will be presented, (5) stepsize control technique will also be presented, (6) the examination of the accuracy and computational cost of the proposed algorithm which is based on the approximation of the Schrödinger equation.
LEAF AREA ESTIMATION IN LITCHI BY MEANS OF ALLOMETRIC RELATIONSHIPS
Authors: OLIVEIRA PABLO SOUTO , SILVA WILTON , COSTA ADRIANA APARECIDA MATTA , SCHMILDT EDILSON ROMAIS , VITÓRIA EDNEY LEANDRO DA
Published: February 2017

ABSTRACT Obtaining leaf area is critical in several agronomic studies, being one of the important instruments to assess plant growth. The aim of this study was to estimate equations and select the most appropriate in determining leaf area in litchi (Litchi chinensis Sonn.). From the linear dimensions of length (L) and maximum width (W) of leaf limb, equations were estimated using linear, quadratic, potential and exponential models. The linear regression equation using the product of the length by maximum width, given by Y = 0.2885 + 0.662 (L.W) is the one that best expresses the leaf area estimation of litchi tree.
MICHEL FOUCAULT: AS LUTAS EM TORNO DO PODER E A DINÁSTICA DO SABER
Authors: Candiotto Cesar ,   PUCPR,  Brazil
Published: February 2017

RESUMO Neste artigo, objetivamos explorar os cruzamentos entre as lutas empreendidas por Michel Foucault no início dos anos setenta e o desenvolvimento de conceitos, como os de sobressaber e sobrepoder no curso "Théories et institutions pénales", a fim de entender como a insurreição dos saberes sujeitados, mencionada em "Il faut défendre la société", pode ser também identificada nos movimentos operários e em outras formas de luta, diante do excesso de saber posto ao serviço da concentração e burocratização do poder. Propomo-nos analisar ainda os desdobramentos teóricos da dinástica do saber, tratada em "Théories et institutions pénales" e em passagens de "Dits et écrits", principalmente pela sua diferença em relação à leitura althusseriana do conceito de ideologia. Nesse sentido, pretendemos indicar até que ponto o permanente afastamento foucaultiano do conceito de ideologia no começo dos anos setenta permitiu-lhe isolar a ideia de dinástica do saber como uma primeira delimitação da analítica do poder.
THE PROFESSIONAL IDENTITY OF NURSING IN THE PAPERS PUBLISHED BY REBEN
Authors: Pimenta Adriana de Lima ,   Universidade Federal de Santa Catarina, Brazil, Souza Maria de Lourdes de ,   UFSC, Brazil
Published: February 2017

ABSTRACT Objective: to analyze the content of scientific papers published in the Brazilian Journal of Nursing (REBEn) concerning the professional identity of nursing. Method: This qualitative study used content analysis. The study’s corpus was composed of scientific papers published in REBEn from 1983 to 2012; 55 papers were selected. Results: The analysis considered the theoretical propositions of Eliot Freidson concerning the Sociology of Professions. Conclusion: The conclusion is that the papers published in REBEn reveal theoretical inadequacy in the analytical matrix of the nursing profession. Therefore, theoretical studies addressing the nursing profession are needed to support propositions consistent with the complexity of conflicts and how to overcome them.
Aderentes e militantes: a participação político-partidária na era do Partido Cartel.
Authors: Franz Walter F. Nique ,   Université Paris 1 Panthéon-Sorbonne,  França
Published: February 2017

Resumo O artigo analisa o estado da arte da literatura sobre as transformações nas formas de participação político-partidária produzida nas últimas décadas. Dois objetivos principais guiam nossa argumentação: (i) fornecer um panorama de referência que possa contribuir ao desenvolvimento de pesquisas sobre esta temática e (ii) atenuar a segmentação que caracteriza as distintas correntes analíticas. Revisando trabalhos publicados em revistas e livros anglo-saxões e franceses, comparamos suas problemáticas, as questões teóricas subjacentes, bem como os métodos de administração da prova utilizados. Destarte, identificamos a estruturação de dois campos de produção politológica que se comunicam pouco. De um lado, uma tradição “Political Science”, mainstream, cujos estudos privilegiam uma abordagem sistêmica e comparada, apoiando-se em uma demonstração fundamentalmente estatística. De outro lado, uma tradição “Sociologie Politique” desenvolvida na França e cuja perspectiva de análise é internacionalmente pouco conhecida. Influenciadas pelo paradigma interacionista, suas pesquisas empregam o método sócio-etnográfico e redirecionam o foco de análise aos níveis meso e micro social. Fazendo um balanço crítico das principais contribuições de ambas as vertentes, apontamos algumas tendências atuais observadas pelos especialistas. Insistimos, particularmente, no potencial heurístico oferecido pelo enfoque da Sociologia Política para agregar novos elementos para a compreensão deste fenômeno.
Regime político e recrutamento parlamentar: um retrato coletivo dos senadores brasileiros antes e depois da ditadura
Authors: Codato Adriano ,   Universidade Federal do Paraná,  Brasil, Costa Luiz Domingos , Massimo Lucas , Heinz Flavio ,   Universidade Federal do Paraná,  Brasil,   Centro Universitário Internacional,  Brasil,   Núcleo de Pesquisa em Sociologia Política Brasileira,  Brasil,   Universidade Federal do Paraná,  Brasil,   Centro Universitário Internacional,  Brasil,   Núcleo de Pesquisa em Sociologia Política Brasileira,  Brasil,   Universidade Federal do Paraná,  Brasil
Published: February 2017

Resumo O artigo reconstitui os perfis coletivos das bancadas do Senado brasileiro em três períodos: a democracia populista (1945-1964), a ditadura militar (1964-1979) e o regime de transição para a democracia liberal (1979-1990). Esse intervalo de tempo compreende três sistemas partidários: multipartidário (1945-1965), bipartidário (1965-1979) e multipartidário (de 1979 em diante). A hipótese testada é a seguinte: variações no perfil social e no perfil da carreira política de parlamentares devem estar relacionadas com o tipo de regime político e, mais especificamente, com o regime de partidos em vigor. No caso aqui analisado, supõe-se que os atributos dos membros do Senado brasileiro, eleitos sob um sistema onde concorrem múltiplos partidos, deva ser diferente dos atributos dos eleitos sob o bipartidarismo, ainda que as regras eleitorais (sistema majoritário) permaneçam constantes. Para analisar o impacto das mudanças nas condições de acesso à Câmara Alta foram estudados 351 senadores. Os dados revelaram que esses representantes tiveram o perfil das suas carreiras afetado pelas variações nos parâmetros da competição política impostas pelo regime ditatorial-militar. O estrangulamento da estrutura de oportunidades, um efeito direto do sistema de dois partidos, foi responsável por alijar concorrentes sem altíssima experiência política. Com a reintrodução do pluripartidarismo nas eleições de 1982, as características das carreiras desses parlamentares retomaram o perfil anterior a 1964.
A construção da paz em um mundo em transformação:o debate e a crítica sobre o conceito de peacebuilding
Authors: Kemer Thaíse ,   UFPR,  Brasil, Pereira Alexsandro Eugenio , Blanco Ramon ,   UFPR,  Brasil,   Universidade Federal da Integração Latino-Americana,  Brasil,   Universidade Federal do Paraná,  Brasil,   Facultad Latinoamericana de Ciencias Sociales,  Brasil
Published: February 2017

Resumo O artigo analisa o surgimento e a evolução do conceito de construção da paz (peacebuilding) no contexto internacional do pós-Guerra Fria, com foco em sua operacionalização no seio da Organização das Nações Unidas (ONU). O objetivo é elucidar a teoria que sustenta a prática da ONU para países emergindo de conflitos violentos. O ensaio argumenta que os conceitos teóricos da construção da paz são objeto de intenso debate internacional desde o período da Guerra Fria. Esse debate contribui para evidenciar os limites e as condições de aplicação desse conceito nas operações de paz conduzidas pela ONU desde 1945. Para tanto, o artigo está dividido em três seções. A primeira adota uma perspectiva histórica do conceito, abordando a operacionalização do conceito de paz na ONU durante a Guerra Fria, quando a paz era predominantemente concebida como a ausência de conflitos militares interestatais. A partir da década de 1960, os trabalhos dos precursores dos estudos para a paz, entre os quais Johan Galtung, lançaram um novo olhar sobre o conceito de paz, na medida em que permitiram compreendê-la não apenas como um sinônimo da cessação de conflitos bélicos entre Estados, mas também como uma noção diretamente relacionada a temas como desenvolvimento e direitos humanos. A segunda seção analisa o alargamento teórico-conceitual do conceito de paz no pós-Guerra Fria, no qual o fim da bipolaridade nas relações internacionais teve impacto direto na atuação da ONU para a construção da paz internacional. Finalmente, a terceira seção apresenta uma abordagem crítica do conceito de construção da paz, evidenciando o debate internacional sobre os limites e as condições de sua aplicação na contemporaneidade. A análise da literatura permite afirmar que os limites práticos e teóricos da noção de peacebuilding impõem a continuidade do debate internacional nesse âmbito, algo essencial para o fortalecimento da ONU no mundo contemporâneo. O artigo, dessa forma, contribui para os esforços acadêmicos que buscam pensar a atuação da ONU para a construção da paz, ao evidenciar que parte dos desafios enfrentados por essa organização tem origens conceituais.
Estudo da dinâmica das motocicletas em frenagens e curvas: O efeito da técnica do piloto e da condição da estrada
Authors: Magnani Fábio Santana , Cunha Saulo dos Santos
Published: February 2017

O estudo das motocicletas apresenta um interessante exemplo de ensino que combina teoria, tecnologia e prática. Neste artigo, apresentamos um estudo dinâmico típico efetuado na disciplina Engenharia da Motocicleta, UFPE. O problema em questão é determinar quando uma motocicleta deve iniciar a sua frenagem e qual é a máxima velocidade em que pode fazer uma determinada curva. Para estudar esse movimento, modelamos a dinâmica da motocicleta em linha reta e depois em curva, considerando as forças inerciais, as forças resistivas, e as forças controladas pelo piloto (propulsão e frenagem). Os modelos matemáticos são então usados para estudar a mínima distância para iniciar a frenagem e a máxima velocidade possível na curva, considerando limites de aderência e a possibilidade de perda de contato de uma das rodas. Como resultado, concluímos que, do ponto de vista da segurança, é importante a consideração das forças resistivas no modelo da velocidade máxima em curva, mas não no cálculo da distância mínima de frenagem. Outro resultado importante é que a técnica ótima de frenagem (proporção do freio dianteiro e traseiro) é função do coeficiente de atrito, não sendo interessante recomendar aos pilotos uma proporção universal.
Promoção da atividade física e da alimentação saudável e a saúde da família em municípios com academia da saúde
Authors: FLORINDO Alex Antonio ,   Universidade de São Paulo, Brasil, NAKAMURA Priscila Missaki , FARIAS JÚNIOR José Cazuza de , SIQUEIRA Fernando Vinholes , REIS Rodrigo Siqueira , CRUZ Danielle Keylla Alencar , HALLAL Pedro Curi ,   Instituto Federal Sul de Minas Gerais, Brasil,   Universidade Federal da Paraíba, Brasil,   Universidade Federal de Pelotas, Brasil,   Washington University in St. Louis, United States of America,   Ministério da Saúde, Brasil
Published: February 2017

Resumo Os objetivos do presente estudo foram: 1) Descrever as prevalências de ações de promoção da atividade física e da alimentação saudável e as características da estratégia de saúde da família em municípios brasileiros que receberam recursos para o desenvolvimento do programa Academia da Saúde; e 2) Verificar as prevalências dessas ações segundo a presença de Núcleos de Apoio à Saúde da Família (NASF) e de profissionais de educação física e nutricionistas nas equipes. Foi realizada entrevista telefônica em 2012 com gestores de saúde de municípios de todo o Brasil que receberam recursos para o desenvolvimento do Academia da Saúde. Foram descritas as frequências (%) das características da saúde da família e das ações de atividade física e de alimentação saudável e calculadas as prevalências em municípios com e sem NASF e com e sem profissionais de educação física e nutricionistas nas equipes. O teste do qui-quadrado foi usado para avaliar as associações. Do total de 5.570 municípios brasileiros em 2012, 2.074 (37,2%) receberam recursos, e destes, 44,1% (n = 914 gestores) responderam as entrevistas. A maioria dos municípios não tinha NASF (61,5%), mas estava desenvolvendo ações de atividade física (84,1%) e de alimentação saudável (83,9%). O parceiro público mais citado foi o setor educação. A prevalência de ações de atividade física (91,5%, p < 0,001) e de alimentação saudável (88,2%, p = 0,006) foi maior nos municípios que tinham NASF em comparação com os que não tinham. A prevalência de ações na atenção básica foi maior nos municípios com profissionais de educação física e com nutricionistas nas equipes. Os NASF contendo profissionais de educação física e nutricionistas são importantes para a promoção da atividade física e da alimentação saudável nos municípios.
Identification of the degree of impact of dams on the hydrologic regime of semi-arid rivers: an evaluation of the DHRAM method
Authors: Souza Naiah Caroline Rodrigues de ,   Universidade Federal da Bahia, Brasil, Fontes Andrea Sousa , Luz Lafayette Dantas da , Pinheiro Sandra Maria Conceição ,   Universidade Federal do Recôncavo da Bahia, Brasil
Published: February 2017

ABSTRACT The flow regulation that results from the implantation of dams causes consequences to the river ecosystems due to the modification on the characteristics of the hydrologic regime. The investigation of these changes become relevant, mainly in semi-arid regions where there is a great amount of these hydraulic structures and lack of such analyzes. Considering the above, this paper aims to evaluate the Dundee Hydrological Regime Alteration Method (DHRAM) through the classification of the degree of impact of dams located on rivers Itapicuru, Paraguaçu and their tributaries, verifying the adequacy of its use to represent the semi-arid hydrologic regime. Thereby, the DHRAM was applied in three versions: considering the thresholds that define the scores to classify the degree of impact in its original set (accordingly to Black et al. (2005)); with the adjustment of those thresholds to local conditions; and, with the regrouping of variables and adjustment of thresholds. The results showed that the method in its original set is applicable to semi-arid rivers, however it tends to be very restrictive against the high natural hydrologic variability characteristic of these rivers, and it ends up pointing to a high degree of alteration for dams that are known for not causing a very siginifcant flow regulation. The DHRAM with the regrouping of variables and the adjustment of thresholds presented the classification that approached the most to the known characteristics of the studied dams, being useful for the evaluation of the impact of dams still in project, and also to guide the adoption of operating rules that minimize the most significant hydrologic alterations that are identified.
Uma nota sobre a lógica formal de Kant
Authors: Santos Pedro
Published: February 2017

O artigo apresenta um problema que surge da combinação da teoria kantiana dos juízos analíticos com a sua adesão oficial à silogística. Argumenta-se em seguida que o problema só pode ser inteiramente solucionado pelo reconhecimento de que a lógica com a qual Kant de fato operava não é consistente nem com a silogística, nem com a lógica clássica, consistindo, de fato, em uma espécie de lógica inclusiva.