nils-herrmann/clean_scirepeval huggingface dataset:
Experiences of wearing support garments by people living with a urostomy.
Venue: British journal of nursing
Year: 2019

BACKGROUND support garments are commonly worn by people with a urostomy but there are no published data about their experiences of doing so. AIMS to identify the views of people living with a urostomy on the role of support garments. METHODS a cross sectional survey of the stoma population's experiences of support garments was conducted in 2018. Recruitment was by social media. The free text responses provided by a sub sample of 58 people out of 103 respondents with a urostomy, were analysed. FINDINGS thematic analysis revealed four themes: physical self management; psychosocial self management; lifestyle; and healthcare advice and support. There were mixed feelings about the value of support garments. Many cited a sense of reassurance and confidence and being able to be more sociable and active; others reported discomfort and uncertainty about their value.  new understanding of experiences of support garments and provide novel theoretical insights about life with a urostomy.
Geometric desingularization of degenerate singularities in the presence of fast rotation: A new proof of known results for slow passage through Hopf bifurcations
Year: 2016

In this article, we present a new, geometric proof of known results for slow passage through Hopf bifurcations (Baer et al. (1989) Neishtadt (1987, 1988) Shishkova (1973) The new proof employs integration along a suitable choice of contour in the complex time plane and then the method of geometric desingularization, which is also known as the blow up method. The contour in the complex time plane is chosen so that the singularities in these slow passage problems become nilpotent, and the loss of hyperbolicity can then be analyzed using the desingularization method without the complication of the fast rotation. Besides being of interest in their own right, the new method and the new proof of the known results for the slow passage through Hopf bifurcation points are also of current interest, since the phenomena of delayed passage through bifurcations plays an increasingly important role in the analysis of folded singularities in higher dimensional fast slow systems with curves and manifolds of nonhyperbolic points. For some of these problems, it will be useful also to formulate the delayed stability loss results by choosing appropriate contours in the complex time plane to make the singularities nilpotent and then by applying the geometric desingularization method.
Influence of Package Visual Cues of Sweeteners on the Sensory Emotional Profiles of Their Products.
Venue: Journal of food science
Year: 2017

Substantial evidence suggests influence of color, physical state, and other extrinsic features on consumer perception and acceptability of food products. In this study, 560 subjects evaluated liking and emotional responses associated with 5 sweeteners (sucralose, stevia, saccharin, aspartame, and sucrose) under 2 eliciting conditions: control (brand name only) and informed (brand name/packet image) to assess impact of the packet color. For a given condition, 5 identical tea samples each labeled with a sweetener type were rated for sweetness and overall liking (9 point) and emotions (5 point) Nonsignificant interactions between eliciting condition and sweetener type were found for liking attributes and emotions (except peaceful) indicating their independent effects. However, overall differences existed among sweetener types and eliciting conditions based on both hedonic and emotional responses (MANOVA, P 0.05) suggesting modulating effects of packet color on sweetener type in the sensory emotion space. The sensory emotion profile for sucrose was separate from that of nonnutritive sweeteners, with statistically significant Mahalanobis distances among sample centroids. Increases in positive emotion intensities contrasted with a decrease in negative emotion intensities were observed for some sweeteners moving from the control to informed condition. Sweetness liking was strongly correlated with the emotion satisfied (sucralose, saccharin) only in the control condition, whereas it was strongly correlated with the emotions pleased and satisfied (stevia) disgusted (aspartame) and satisfied (sucrose) only in the informed condition. Overall, results suggested that sensory liking and emotions during the consumption experience are related not entirely to the type of sweetener, but also the color of the packet.
SISTEM PAKAR UNTUK MENGIDENTIFASI PENYAKIT UDANG VANNAMEIDENGAN METODE CERTAINTY FAKTOR
Year: 2017

ABSTRAK Di Indonesia pasar udang vannamei konsumsi saat ini terbuka sangat lebar karena itu peluang pasarnya sangat prospektif dan menjanjikan. Misalnya warung makan membutuhkan pasokan tak terbatas, akan tetapi bisnis ini bukan tanpa kendala yang mengakibatkan produksi udang berfluktuasi. Faktor yang mempengaruhi hasil panen tidak maksimal adalah konsep tambak yang tidak sesuai standar, kualitas pakan yang kurang bagus, dan penyakit. Penelitian mengenai pendiagnosaan penyakit udang vannamei sebagai penarikan kesimpulan menggunakan mesin inferensi dengan metode penelusuran fakta forward chaining yang menggunakan kaidah (If Then) dan metode kepastian Certainty Factor. Tahap pengembangan aplikasi diawali dengan tahap analisis dan definisi persyaratan yang menghasilkan rekayasa pengetahuan, kebutuhan data dan kebutuhan sistem. Tahap kedua yaitu perancangan sistem dan perangkat lunak, yang terdiri dari membangun basis pengetahuan diantaranya membuat tabel keputusan, membuat basis aturan, membuat mesin inferensi dan membuat graf penelusuran. Dan perancangan proses yaitu terdiri dari perancangan menu dan perancangan interface. Tahap ketiga yaitu implementasi dan pengujian unit. Tahap selanjutnya adalah integrasi dan pengujian sistem menggunakan alpha test dan black box test. Dari pengujian yang dilakukan menghasilkan Sistem Pakar Untuk Mengidentifikasi Penyakit Udang Vannamei Dengan Metode Certainty Factor yang dapat bekerja seperti layaknya seorang pakar udang vannamei. Informasi yang dihasilkan adalah nama penyakit, definisi penyakit, penyebab, gejala gejala yang menyertai, solusi, dan probabilitas penyakit. Hasil uji coba menunjukan bahwa aplikasi layak dan dapat digunakan.  Sistem Pakar, Udang Vannamei, Certainty Factor.
Estilos de Lideranca no Tribunal de Contas do Estado do Amazonas
Year: 2020

The main objective of the article was to analyze the leadership styles and the circumstances that influence them, according to the level of leaders in the organizational structure of the Amazonas State Court of Auditors. For this purpose, a quantitative research was done, whose data were collected from a questionnaire with 30 leaders. The technique used to interpret the leader's responses was the descriptive statistics with the aid of Microsoft Excel software. The results found that leaders adapt their leadership style based on the variables that impact their daily work. These variables being present in Tannenbaum Schmidt (1973) Leadership Continuum and through that it was also possible to find out not only the characteristics of the leader, but also those of subordinates and demands. Despite the organizational levels have similar styles, each level showed a tendency in the leadership style, which was observed by analysis using the Tannenbaum Schmidt (1973) Leadership Continuum. The results presented in this may be used as a reference for further study in the academic and practical field about leadership style in public administration.
Integrated Thermal and Dynamic Analysis of Dry Automotive Clutch Linings
Venue: Applied Sciences
Year: 2019

Optimum operation of clutch systems is dictated by their dynamic as well as thermal performance. Both of these aspects are closely related to the interfacial frictional characteristics of the clutch lining material, which also affects the noise, vibration and harshness response of the entire vehicular powertrain system. Severe operating conditions such as interfacial clutch slip and increased contact pressures occur during clutch engagement, leading to generation of contact heat, and higher clutch system temperature. Therefore, any undesired oscillatory responses, generated during clutch engagement, such as take up judder phenomenon can exacerbate generated heat due to stick slip motion. The paper presents an integrated thermal, and 9 DOF dynamic model of a rear wheel drive light truck powertrain system. The model also includes experimentally measured clutch lining frictional variations with interfacial slip speed, non linear contact pressure profile and generated surface flash temperature. It is shown that severe torsional oscillations known as take up judder lead to an increased overall clutch temperature. It also shows that ageing of clutch lining material alters its dynamic and thermal performance.
Prediction error expansion based reversible data hiding in encrypted images with public key cryptosystem
Venue: IET Image Process.
Year: 2019

Advances in signal processing in the encrypted domain and cloud computing have given rise to privacy preserving technologies. In recent years, reversible data hiding in encrypted images (RDH EI) has received attention from the research community because additional data can be embedded into an encrypted image without accessing its original content, and the encrypted image can be losslessly recovered after extracting the embedded data. Although the recent development of RDH EI compatible with homomorphic public key cryptosystems has intensified research interest, most of the existing mature RDH schemes cannot be transplanted to the encrypted domain due to the limitations of the underlying cryptosystems. In this paper, prediction error expansion based RDH ED using probabilistic and homomorphic properties of the Paillier cryptosystem is presented. This work implements non integer mean value computation in the encrypted domain without any interactive protocol between the content owner and the cloud server. This work presents mathematical detail of pixel prediction (mean) prediction error, error expansion and data embedding in the encrypted domain and data extraction and content recovery in the plain domain. Experimental results from standard test images reveal that the proposed scheme outperforms other state of the art encrypted domain schemes.
READING TO LEARN IN CHEMISTRY ESP COURSES LEER PARA APRENDER EN CURSOS DE INGLES CON PROPOSITOS ESPECIFICOS, APLICACION EXPERIMENTAL DEL CICLO DE ANDAMIAJE EN LA FACULTAD DE CIENCIAS QUIMICAS DE LA UNC
Year: 2017

The development of reading comprehension in a foreign language has been of concern to many applied linguists, who have proposed different approaches to enhance students' comprehension. Scaffolding has been identified as one of the most effective teaching practices to enrich students' reading comprehension. This study aims to test an adapted model of the Scaffolding Interaction Cycle (Martin and Rose, 2005) in the context of a reading comprehension course at the School of Chemistry, National University of Cordoba, in an attempt to help solve some of the main problems detected in the mainstream classroom approach, such as lack of understanding of reading strategies and of grammatical structures, and poor comprehension of semantically dense texts. A quasi experimental study with no random assignment (one group, preand post test design) based on quantitative and qualitative methods to collect and analyse the data was conducted. In general, the results indicate that the instruction based on the adapted version of the Scaffolding Interaction Cycle contributes to enhancing the teaching of EFL reading and helps poor skilled readers improve their reading comprehension skills. These results have pedagogical implications for reading courses addressed to non native students who are studying English for Specific Purposes. Reading to learn in chemistry ESP courses II To my parents, who have always showed me that learning is the
Tests for relative performance evaluation based on assumptions derived from proxy statement disclosures
Year: 2011

The main purpose of this paper is to test for relative performance evaluation (RPE) using assumptions derived from an examination of firms' disclosures about their RPE use. Prior empirical evidence supporting the use of RPE in executive compensation is mixed. This is puzzling since studies of firm disclosures indicate that firms claim to use RPE based on both accounting measures and stock returns. Those few studies that do find empirical support observe it with either an accounting performance measure or stock returns, but not both. The lack of strong consistent empirical support for RPE is due, in part, to the fact that the preponderance of tests for RPE incorporate unsubstantiated assumptions about the way firms apply RPE. This includes the compensation measure to which RPE is applied and the way in which firms use firm own and peer group performance when determining compensation. Our test results provide support for the use of RPE among 1998 S&P 500 firms with both stock returns and return on equity. To our knowledge, this is the first study to find support for RPE with both stock returns and an accounting performance measure. Through a series of sensitivity analyses, we also provide insight into the amount of detail researchers need to build into their empirical tests in order to find support for RPE.
La dynamique contestataire du mouvement du 20 fevrier a l'epreuve des revoltes arabes CETRI, Centre Tricontinental
Year: 2018

Genese du mouvement du 20 fevrier Le Maroc comme tous les pays qui se trouvent dans la geographie arabe a vecu des contestations durant l'annee 2011. Certes, l'evenement mene par le Mouvement du 20.
Novel optimal control strategy for power fluctuation and current harmonic suppression of a three phase photovoltaic inverter under unbalanced grid faults
Year: 2016

Under unbalanced grid faults, the output currents of a photovoltaic (PV) system injected into the grid lose their sinusoidal and balanced appearance. The interaction between such unbalanced currents and voltages leads to fluctuations in active and reactive powers. This study investigates the instantaneous output power characteristics of a PV inverter and its flexible power control strategy under unbalanced grid faults. A new optimal parameter model of power control is established to generate minimal integrated power fluctuations under the constraint of harmonic distortion in the output current. Finally, the optimal power control of the PV inverter based on dead beat current tracking is realized. The feasibility of the proposed control strategy is verified with the power system transient software PSCAD/EMTDC.
Dynamic locomotion synchronization of bipedal robot and human operator via bilateral feedback teleoperation
Venue: Science Robotics
Year: 2019

A bilateral teleoperation system facilitates locomotion synchronization of a human operator and a small bipedal robot. Despite remarkable progress in artificial intelligence, autonomous humanoid robots are still far from matching human level manipulation and locomotion proficiency in real applications. Proficient robots would be ideal first responders to dangerous scenarios such as natural or man made disasters. When handling these situations, robots must be capable of navigating highly unstructured terrain and dexterously interacting with objects designed for human workers. To create humanoid machines with human level motor skills, in this work, we use whole body teleoperation to leverage human control intelligence to command the locomotion of a bipedal robot. The challenge of this strategy lies in properly mapping human body motion to the machine while simultaneously informing the operator how closely the robot is reproducing the movement. Therefore, we propose a solution for this bilateral feedback policy to control a bipedal robot to take steps, jump, and walk in synchrony with a human operator. Such dynamic synchronization was achieved by (i) scaling the core components of human locomotion data to robot proportions in real time and (ii) applying feedback forces to the operator that are proportional to the relative velocity between human and robot. Human motion was sped up to match a faster robot, or drag was generated to synchronize the operator with a slower robot. Here, we focused on the frontal plane dynamics and stabilized the robot in the sagittal plane using an external gantry. These results represent a fundamental solution to seamlessly combine human innate motor control proficiency with the physical endurance and strength of humanoid robots.
Automatic diagnosis of abnormal macula in retinal optical coherence tomography images using wavelet based convolutional neural network features and random forests classifier
Venue: Journal of biomedical optics
Year: 2018

The present research intends to propose a fully automatic algorithm for the classification of three dimensional (3 D) optical coherence tomography (OCT) scans of patients suffering from abnormal macula from normal candidates. The method proposed does not require any denoising, segmentation, retinal alignment processes to assess the intraretinal layers, as well as abnormalities or lesion structures. To classify abnormal cases from the control group, a two stage scheme was utilized, which consists of automatic subsystems for adaptive feature learning and diagnostic scoring. In the first stage, a wavelet based convolutional neural network (CNN) model was introduced and exploited to generate B scan representative CNN codes in the spatial frequency domain, and the cumulative features of 3 D volumes were extracted. In the second stage, the presence of abnormalities in 3 D OCTs was scored over the extracted features. Two different retinal SD OCT datasets are used for evaluation of the algorithm based on the unbiased fivefold cross validation (CV) approach. The first set constitutes 3 D OCT images of 30 normal subjects and 30 diabetic macular edema (DME) patients captured from the Topcon device. The second publicly available set consists of 45 subjects with a distribution of 15 patients in age related macular degeneration, DME, and normal classes from the Heidelberg device. With the application of the algorithm on overall OCT volumes and 10 repetitions of the fivefold CV, the proposed scheme obtained an average precision of 99.33% on dataset1 as a two class classification problem and 98.67% on dataset2 as a three class classification task.
Bayesian Analysis of Bubbles in Asset Prices
Year: 2017

We develop a new model where the dynamic structure of the asset price, after the fundamental value is removed, is subject to two different regimes. One regime reflects the normal period where the asset price divided by the dividend is assumed to follow a mean reverting process around a stochastic long run mean. The second regime reflects the bubble period with explosive behavior. Stochastic switches between two regimes and non constant probabilities of exit from the bubble regime are both allowed. A Bayesian learning approach is employed to jointly estimate the latent states and the model parameters in real time. An important feature of our Bayesian method is that we are able to deal with parameter uncertainty and at the same time, to learn about the states and the parameters sequentially, allowing for real time model analysis. This feature is particularly useful for market surveillance. Analysis using simulated data reveals that our method has good power properties for detecting bubbles. Empirical analysis using price dividend ratios of S&P500 highlights the advantages of our method.
Legal Regulations on the Construction of China's Rural Social Security System from the Perspective of Urban Rural Integration
Year: 2019

Under the condition of market economy, perfect social security system is particularly important, and it is necessary to have a correct understanding of it. The establishment and improvement of rural social security system should adhere to the goal of coordinating urban and rural development and realizing urban and rural integration. The construction of rural social security system should adhere to the guiding principles of fairness, efficiency, government led, security level and economic development; its supporting measures are to establish the legal system, capital system, classification mechanism of rural social security. The implementation of the urban and rural integration and revitalization strategy and the basic requirements for the comprehensive establishment of a multi level social security system, and targeted recommendations for improving the rural social security system in China. The important goal of building a well off society requires adhering to the principle of full coverage, basic protection, multi level and sustainable development, with a focus on enhancing fairness, adapting to mobility, ensuring sustainability, and building a social security system covering urban and rural residents.
Vulnerability of solar energy infrastructure and output to climate change
Venue: Climatic Change
Year: 2013

This paper reviews the potential vulnerability of solar energy systems to future extreme event risks as a consequence of climate change. We describe the three main technologies likely to be used to harness sunlight thermal heating, photovoltaic (PV) and concentrating solar power (CSP) and identify critical climate vulnerabilities for each one. We then compare these vulnerabilities with assessments of future changes in mean conditions and extreme event risk levels. We do not identify any vulnerabilities severe enough to halt development of any of the technologies mentioned, although we do find a potential value in exploring options for making PV cells more heat resilient and for improving the design of cooling systems for CSP.
VAT and Tax Credits: A Way to Eliminate Tax Evasive Use of Transfer Prices?
Year: 2009

In this paper we compare income taxes to VAT and tax credits to tax deductions in terms of their ability to distort factor prices, provide fair taxation, avoid tax evasive transfer pricing and induce Pareto improvement of tax policies. On the base of theoretical discussion and thought experiments we conclude that VAT is due to its nature superior regarding these requirements. We also have found out that a wider use of tax credits within VAT would be useable to prevent profit shifting. Some adjustments of VAT compared to current practice are needed to achieve the best results. More rigorous proofs, both theoretical and empirical are needed.