nils-herrmann/clean_scirepeval huggingface dataset:
Destination South Africa: comparing global sports mega events and recurring localised sports events in South Africa for tourism and economic development
Year: 2015

This contribution examines the comparative value of sport mega events such as the 2010 FIFA (Federation Internationale de Football Association) World Cup of soccer held in South Africa and recurring sporting events (SPEs) such as the Comrades Marathon held each year in KwaZulu Natal Province in South Africa. Through an examination of case studies of the World Cup and regional SPEs in South Africa, with particular focus on Durban and surrounding areas of KwaZulu Natal, we seek to expand debate on the efficacy of various SPEs on tourism and local and regional economic development strategies. We present a detailed literature review of the role of these events to economic development and impacts on tourism and legacy planning then examine extant data produced around the 2010 World Cup (realising that we only have a partial picture to date) and compare that to SPEs held regularly in the region. Our aim is to generate intelligent debate around the role of sports and tourism in economic development strategies and suggest that alternative focus will yield more sustainable and predictable returns that locate benefits in host communities.
Modeling and Control Design of Quad copter Failsafe System
Year: 2015

In quad copter control system, with four degrees of freedom, quad copters are difficult to be controlled by non linear system under vibration from structure failure. In this paper, a dynamics model of quad copter control functionis presented. Radial Basis Function Neural Network (RBFNN) based on Proportional Integral Derivative (PID) controller is designed to realize the Adapted and automatically manage Control System (ASAC).Experiment of a quad copter in flight is given to verify the proposed scheme.
Allyl type monomers for hard surface coating protection
Year: 2019

Based on the unsaturated derivatives of polyfluoroalkanols chemical products are used to protect solid and fibrous materials surface from the effects of water, oils and other pollutants. A method for obtaining allyl ethers of polyfluoroalkanols (polyfluoroalkoxypropenes) is based on the Williamson ether reaction. This method is a heterophase process. The use of solvents to improve mass transfer requires complementary measures to ensure industrial and environmental safety. It is more preferable to obtain the target ethers in water with PTC. A series of experiments using different chain length polyfluoroalkanols was studied by GLC. Kovats retention indexes of the target ethers were determined. It was found that in the case of lower homologues (CF3 CH2 OH, (CF3 )2 CHOH, HCF2 CF2 CH2 OH) the addition of 5 15 vol. 1,4 dioxane as a solubilizer provides a high yield of products. The application of PTC (tetrabutylammonium bromide) is indispensable for using polyfluoroalkanols with a longer carbon chain (C>=5) PTC invariably provides the almost complete conversion of polyfluoroalkanols. The decomposition process of TBAB becomes noticeable (GLC method) upon completion of the main reaction. Polyfluoroalkoxypropenes form azeotrope with water, which can be used in the work up process.
Self branding, 'micro celebrity' and the rise of Social Media Influencers
Year: 2017

The notion of self branding has drawn myriad academic responses over the last decade. First popularised in a provocative piece published in Fast Company, self branding has been criticised by some on theoretical, practical and ethical grounds, while others have endorsed and propelled the idea. This article considers how and why the concept of self branding has become so prevalent. We contend that it parallels the growth of digital technology (particularly social media) embedded in the current political climate: neoliberal individualism. Another objective here is to imbue the concept of self branding with a marketing perspective and show how the 'celebrities' of self branding manifest at a marketing media nexus distinct to the opening decades of the twenty first century. Building on literature from mostly media and cultural studies, this critique sees self branding as a distortion of key branding principles that has obvious implications for its practitioners and advocates. The article shows that, despite inherent tensions and problematic ironies, self branding persists through the rise of Social Media Influencers; we consider three of these whose fame and following was achieved via the practices and phenomena under consideration.
Desarmar(se) varon construir(se)padre: intervenciones psicoanaliticas con jovenes varones en contexto de encierro punitivo
Year: 2020

Starting from the developments in gender studies, masculinities and queer theory, we will first discuss how psychoanalysis, as a theoretical construction of modernity, explains the subject in connection with cultural conceptions of masculinity and femininity. Second, we will analyze what are the possible clinical interventions in prison. When reflecting on our tools as psychoanalysts, the logics of production of a therapeutic device in a penitentiary unit will be analyzed, attending to two specificities: the logics of punitive confinement and the sex affective ties of young men deprived of freedom. To do this, we will start from the notion of intervention, which, taking into account these particularities, and understanding the psychoanalytic ethics oriented towards the subversion of the subject, is mutilated by not including the categories of analysis and praxis of gender studies.
Case Study: Extreme Weight Making Causes Relative Energy Deficiency, Dehydration, and Acute Kidney Injury in a Male Mixed Martial Arts Athlete.
Venue: International journal of sport nutrition and exercise metabolism
Year: 2019

The aim of the present case study was to quantify the physiological and metabolic impact of extreme weight cutting by an elite male mixed martial arts athlete. Throughout an 8 week period, we obtained regular assessments of body composition, resting metabolic rate, peak oxygen uptake, and blood clinical chemistry to assess endocrine status, lipid profiles, hydration, and kidney function. The athlete adhered to a "phased" weight loss plan consisting of 7 weeks of reduced energy (ranging from 1,300 to 1,900 kcal/day) intake (Phase 1) 5 days of water loading with 8 L/day for 4 days followed by 250 ml on Day 5 (Phase 2) 20 hr of fasting and dehydration (Phase 3) and 32 hr of rehydration and refueling prior to competition (Phase 4) Body mass declined by 18.1% (80.2 to 65.7 kg) corresponding to changes of 4.4, 2.8, and 7.3 kg in Phases 1, 2, and 3, respectively. We observed clear indices of relative energy deficiency, as evidenced by reduced resting metabolic rate 331 kcal) inability to complete performance tests, alterations to endocrine hormones (testosterone: <3 nmol/L) and hypercholesterolemia >6 mmol/L) Moreover, severe dehydration (reducing body mass by 9.3% in the final 24 hr prior to weigh in induced hypernatremia (plasma sodium: 148 mmol/L) and acute kidney injury (serum creatinine: 177 mmol/L) These data, therefore, support publicized reports of the harmful (and potentially fatal) effects of extreme weight cutting in mixed martial arts athletes and represent a call for action to governing bodies to safeguard the welfare of mixed martial arts athletes.
Lattice Boltzmann method for general convection diffusion equations: MRT model and boundary schemes
Venue: J. Comput. Phys.
Year: 2019

This paper is concerned with the lattice Boltzmann method for general convection diffusion equations. For such equations, we develop a multiple relaxation time lattice Boltzmann model and show its consistency under the diffusive scaling. The second order accuracy of the half way anti bounce back scheme accompanying the present MRT model is justified based on an elegant relation of the collision matrix. Using the half way anti bounce back scheme as a central step, we further construct some parameterized single node second order schemes for curved boundaries. The accuracy of the proposed model and boundary schemes are numerically validated with several nonlinear convection diffusion equations.
Internal combustion engine efficiency enhancer by using hydrogen
Year: 2020

Most cars work by burning a liquid fuel with oxygen. Fuel is squirted into a chamber with air, it evaporates into a gaseous mixture, it lights, the burning gases expand, which in turn produces motive power. The car begins to move. The Problem is that becomes more expensive. With these rising costs of gasoline and diesel fuel, we decided to try using hydrogen as a means of alternative power for the car. With a hydrogen generator, the idea is to replace some of the gasoline with hydrogen. Gaseous hydrogen burns readily and produces loads of power. The idea is that the extra boost (not replacement) in gasoline power from the hydrogen would cause a gasoline burning engine to back off on using so much gasoline. This in turn should result in less gas being burned. This paper brings about hydrogen fuel generator, whose fuel generated can be used as alternate source of fuel.
Walking speed changes in response to user driven treadmill control after stroke.
Venue: Journal of biomechanics
Year: 2020

The objective of this study was to determine how individuals poststroke respond to user driven treadmill (UDTM) controlin terms ofwalking speeds, peak anterior ground reaction forces (AGRF) peak posterior ground reaction forces (PGRF) and trailing limb angles (TLA) Twenty individuals with chronic stroke walked overground during a 10 meter walk test to determine their self selected (SS) speeds before walking on a treadmill in its fixed speed (FSTM) and UDTM control modes at their SS and fastest comfortable (Fast) speeds. Paired t tests were used to compare the walking speeds, peak AGRF, peak PGRF, and TLA among test conditions (a 0.05) Participants selected similar SS (p 0.05) and faster Fast walking speeds (p 0.05) with the UDTM control compared to the FSTM control. There were no changes in their peak AGRF or PGRF for either limb or speed between UDTM and FSTM conditions (p 0.05) Individuals used greater paretic TLA at SS speeds with UDTM control (p 0.05) There was no difference in the AGRF required at Fast speeds with FSTM and UDTM control even though participants selected faster speeds with UDTM control. In work with young, healthy adults, we found that the treadmill control condition did not affect the amount of forward propulsion needed. Therefore, it is likely that when walking with UDTM control, individuals poststroke adjust their posture to make better use of their forward propulsion. This means they can reach faster walking speeds without increasing their push off forces. Future work should assess how to most effectively prescribe UDTM control for gait training programs.
Blood titanium level as a biomarker of orthopaedic implant wear.
Venue: Journal of trace elements in medicine and biology organ of the Society for Minerals and Trace Elements
Year: 2019

Joint replacement implants are usually manufactured from cobalt chromium or titanium alloys. After the device is implanted, wear and corrosion generate metal particles and ions, which are released into local tissue and blood. The metal debris can cause a range of adverse local and systemic effects in patients.  In the case of cobalt and chromium, a blood level exceeding 7 mg L 1 indicates potential for local toxicity, and a failing implant. It has been repeatedly suggested in the literature that measurement of titanium could also be used to assess implant function. Despite an increasing interest in this biomarker, and growing use of titanium in orthopaedics, it is unclear what blood concentrations should raise concerns. This is partly due to the technical challenges involved in the measurement of titanium in biological samples.  This Review summarises blood/serum titanium levels associated with well functioning and malfunctioning prostheses, so that the prospects of using titanium measurements to gain insights into implant performance can be evaluated.  Due to inter laboratory analytical differences, reliable conclusions regarding "normal" and "abnormal" titanium levels in patients with orthopaedic implants are difficult to draw. Diagnosis of symptomatic patients should be based on radiographic evidence combined with blood/serum metal levels.
Efficacy and safety of the proprotein convertase subtilisin/kexin type 9 inhibitor alirocumab among high cardiovascular risk patients on maximally tolerated statin therapy: The ODYSSEY COMBO I study.
Venue: American heart journal
Year: 2015

The ODYSSEY COMBO I study (http:/clinicaltrials.gov/show/NCT01644175) evaluated efficacy and safety of alirocumab as add on therapy to stable maximally tolerated daily statin with or without other lipid lowering therapy in high cardiovascular risk patients with suboptimally controlled hypercholesterolemia.  This multicenter, phase 3, randomized (2:1 alirocumab vs placebo) double blind, 52 week trial enrolled 316 patients with established coronary heart disease or coronary heart disease risk equivalents and hypercholesterolemia. Alirocumab (75 mg every 2 weeks [Q2W] or placebo Q2W was self administered subcutaneously via 1 mL prefilled pen. The alirocumab dose was increased to 150 mg Q2W (also 1 mL) at week 12 if week 8 low density lipoprotein cholesterol (LDL C) was =70 mg/dL. The primary efficacy end point was percent change in LDL C from baseline to week 24 (intention to treat analysis)  At week 24, estimated mean (95% CI) changes in LDL C from baseline were 48.2% 52.0% to 44.4% and 2.3% 7.6% to 3.1% for alirocumab and placebo, respectively, an estimated mean (95% CI) difference of 45.9% 52.5% to 39.3% (P .0001) Low density lipoprotein cholesterol <70 mg/dL was achieved by 75% alirocumab versus 9% placebo patients at week 24. At week 12, 83.2% of evaluable alirocumab treated patients remained on 75 mg Q2W. Treatment emergent adverse events were comparable between groups.  Alirocumab treatment achieved a significantly greater reduction in LDL C and allowed a greater proportion of patients to achieve LDL C goals, versus placebo after 24 weeks in high cardiovascular risk patients with suboptimally controlled hypercholesterolemia at baseline despite receiving maximally tolerated statin with or without other lipid lowering therapy. The frequency of treatment emergent adverse events and study medication discontinuations were generally comparable between treatment groups.
On determinant representations of scalar products and form factors in the SoV approach: the XXX case
Year: 2015

In the present article we study the form factors of quantum integrable lattice models solvable by the separation of variables (SoV) method. It was recently shown that these models admit universal determinant representations for the scalar products of the so called separate states (a class which includes in particular all the eigenstates of the transfer matrix) These results permit to obtain simple expressions for the matrix elements of local operators (form factors) However, these representations have been obtained up to now only for the completely inhomogeneous versions of the lattice models considered. In this article we give a simple algebraic procedure to rewrite the scalar products (and hence the form factors) for the SoV related models as Izergin or Slavnov type determinants. This new form leads to simple expressions for the form factors in the homogeneous and thermodynamic limits. To make the presentation of our method clear, we have chosen to explain it first for the simple case of the $XXX$ Heisenberg chain with anti periodic boundary conditions. We would nevertheless like to stress that the approach presented in this article applies as well to a wide range of models solved in the SoV framework.
DESAIN DAN ANALISIS PHASE MODULATION PADA SISTEM ORTHOGONAL FREQUENCY DIVISION MULTIPLEXING RADIO OVER FIBER (OFDM RoF)
Year: 2020

Radio over Fiber (RoF) adalah suatu proses pengiriman sinyal radio melalui kabel serat optik. Dengan menggunakan kabel serat optik sebagai medium perantara, maka akan diperoleh kecepatan transmisi yang lebih besar dibandingkan ketika dilakukan transmisi menggunakan kabel tembaga. Sistem komunikasi serat optis memiliki beberapa kendala salah satunya adalah sifat nonlinieritas dari serat optis itu sendiri. Nonlinear adalah salah satu masalah utama komunikasi broadBmand yang dihadapi dalam memanfaatkan serat optis berkapasitas tinggi. Ada beberapa dampak yang disebabkan oleh sifat nonlinier diantaranya adalah atenuasi daya dan hamburan scattering Tujuan dari paper ini adalah mengusulkan sebuah desain dan mensimulasikan sistem OFDM RoF dengan injeksi sinyal FM menggunakan format modulasi 64 QAM. Simulasi sistem OFDM RoF dilakukan dengan menggunakan software Optisystem 16. Pada sistem ini dilakukan beberapa variasi pada power transmiter dan pada power local oscillator. Hasil simulasi meliputi diagram konstelasi pada sisi penerima, nilai Bit Error Rate (BER) dan nilai Error Vector Magnitude (EVM) Hasil terbaik yang didapat dari sistem OFDM RoF ini dengan bit rate 10Gbps didapat BER sebesar 0,295 dan nilai EVM sebesar 18,54% Sedangkan pada bit rate 40Gbps didapat BER sebesar 0,325 dan nilai EVM sebesar 18,84% Kata Kunci: OFDM; Radio over Fiber 64 QAM ABSTRACT Radio over Fiber (RoF) is a process of sending radio signals through optical fiber cables. By using a fiber optic cable as an intermediate medium, the transmission speed will be obtained greater than when done using a copper cable transmission. Optical fiber communication system has several obstacles, one of which is the nonlinearity of the optical fiber itself. Nonlinearity is one of the main problems of broadBmand communication encountered in utilizing high capacity optical fiber. There are several impacts caused by the nonlinear nature including attenuation of power and scattering (scattering) The purpose of this paper is to propose a design and simulate OFDM RoF system with FM signal injection using a 64 QAM modulation format. OFDM RoF system simulation is done by using Optisystem 16 software. In this system some variations are made to the power transmitter and the local power oscillator. Simulation results include constellation diagrams on the receiver side, Bit Error Rate (BER) and Error Vector Magnitude (EVM) values. The best results obtained from this OFDM RoF system with a bit rate of 10Gbps obtained BER of 0.295 and EVM of 18.54% Whereas at 40Gbps bit rate, BER is 0.325 and EVM value is 18.84% Key Word OFDM; Radio over Fiber; 64 QAM
Simultaneous Determination of Paracetamol, Orphenadrine Citrate, and Caffeine Ternary Mixture by Different Spectrophotometric Methods
Venue: Journal of Applied Spectroscopy
Year: 2019

The resolving power of spectrophotometric assisted mathematical techniques was demonstrated for the simultaneous determination of the challenging ternary mixture of paracetamol (PAR) orphenadrine citrate (Or.cit) and caffeine (CAF) where PAR, which has the highest absorptivity, is formulated in a very high concentration compared with Or.cit and CAF. Simultaneous area ratio subtraction (SARS) derivative spectrophotometry (D) constant multiplication (CM) and dual wavelength (DW) resolution techniques were able to resolve the three drugs. In SARS, PAR concentration was determined directly at 304 nm in the division spectra using PAR normalized spectrum as a divisor. After subtraction of the constant and multiplying by PAR normalized spectrum; CAF and Or.cit can be determined by first and fourth derivative methods, respectively, from the division spectra. Also, Or.cit and CAF can be obtained by the DW method and CM method, respectively, upon the division of the obtained ratio spectra by CAF spectrum. The proposed methods were validated with good accuracy and precision over the concentration ranges of 20 90, 3 40, and 1 20 mg/mL for PAR, Or.cit, and CAF, respectively. Specificity of the proposed methods was assessed by analyzing laboratory prepared mixtures containing different ratios of the cited drugs. The proposed methods were applied successfully for the determination of PAR, Or.cit, and CAF in their dosage form without any interference.
An efficient solution for semantic segmentation: ShuffleNet V2 with atrous separable convolutions
Year: 2019

Assigning a label to each pixel in an image, namely semantic segmentation, has been an important task in computer vision, and has applications in autonomous driving, robotic navigation, localization, and scene understanding. Fully convolutional neural networks have proved to be a successful solution for the task over the years but most of the work being done focuses primarily on accuracy. In this paper, we present a computationally efficient approach to semantic segmentation, while achieving a high mean intersection over union (mIOU) 70.33% on Cityscapes challenge. The network proposed is capable of running realtime on mobile devices. In addition, we make our code and model weights publicly available.
Good Video Games Good Learning: collected essays on video games, learning and literacy
Year: 2013

Good Video Games and Good Learning presents the most important essays by James Paul Gee devoted to the ways in which good video games create good learning. The chapters in this book argue that good games teach through well designed problem solving experiences. They also prove that game based learning must involve more than software and technology and engage with the design of passionate affinity spaces where people mentor each other's learning and engagement. In the end, the book offers a model of collaborative, interactive, and embodied learning centered on problem solving, a model that can be enhanced by games, but which can be accomplished in many different ways with or without games.
Within project and cross project just in time defect prediction based on denoising autoencoder and convolutional neural network
Venue: IET Softw.
Year: 2020

Just in time defect prediction is an important and useful branch in software defect prediction. At present, deep learning is a research hotspot in the field of artificial intelligence, which can combine basic defect features into deep semantic features and make up for the shortcomings of machine learning algorithms. However, the mainstream deep learning techniques have not been applied yet in just in time defect prediction. Therefore, the authors propose a novel just in time defect prediction model named DAECNN JDP based on denoising autoencoder and convolutional neural network in this study, which has three main advantages: (i) Different weights for the position vector of each dimension feature are set, which can be automatically trained by adaptive trainable vector. (ii) Through the training of denoising autoencoder, the input features that are not contaminated by noise can be obtained, thus learning more robust feature representation. (iii) The authors leverage a powerful representation learning technique, convolution neural network, to construct the basic change features into the abstract deep semantic features. To evaluate the performance of the DAECNN JDP model, they conduct extensive within project and cross project defect prediction experiments on six large open source projects. The experimental results demonstrate that the superiority of DAECNN JDP on five evaluation metrics.
Cryptographic primitives in blockchains
Venue: J. Netw. Comput. Appl.
Year: 2019

Blockchain, as one of the crypto intensive creatures, has become a very hot topic recently. Although many surveys have recently been dedicated to the security and privacy issues of blockchains, there still lacks a systematic examination on the cryptographic primitives in blockchains. To this end, we in this paper conduct a systematic study on the cryptographic primitives in blockchains by comprehensive analysis on top 30 mainstream cryptocurrencies, in terms of the usages, functionalities, and evolutions of these primitives. We hope that it would be helpful for cryptographers who are going to devote themselves to the blockchain research, and the financial engineers/managers who want to evaluate cryptographic solutions for blockchain based projects.