Miracle-dz/UniFAR-FTUs huggingface dataset:
Towards improving teaching and learning of algorithmics by means of resources design: a case of primary school education in France

This article is devoted to the problem of design of resources in algorithmics for teachers of primary school in France. We investigate what elements should contain such resource in order to support the learning intended by authors of the resource, during its implementation by teachers who works in different contexts. To contribute to this question, we study the design principles of a particular resource in algorithmics. We follow this resource from the moment of its creation by a researcher and an experienced teacher to its appropriation and usage by three ordinary teachers. Paper describes how the results of analysis of lessons observations, interviews and collective discussions with teachers pointed to missing elements of the resource and, hence, contributed in its enhancement. The results of the study aim to bring some elements for improving the teaching of algorithmics by means of resources and, as a result, to support the learning of the involved concepts.
MegaSense: Cyber-Physical System for Real-time Urban Air Quality Monitoring

Air pollution is a contributor to approximately one in every nine deaths annually. To counteract health issues resulting from air pollution, air quality monitoring is being carried out extensively in urban environments. Currently, however, city air quality monitoring stations are expensive to maintain, resulting in sparse coverage. In this paper, we introduce the design and development of the MegaSense Cyber-Physical System (CPS) for spatially distributed IoT-based monitoring of urban air quality. MegaSense is able to produce aggregated, privacy-aware maps and history graphs of collected pollution data. It provides a feedback loop in the form of personal outdoor and indoor air pollution exposure information, allowing citizens to take measures to avoid future exposure. We present a battery-powered, portable low-cost air quality sensor design for sampling PM2.5 and air pollutant gases in different micro-environments. We validate the approach with a use case in Helsinki, deploying MegaSense with citizens carrying low-maintenance portable sensors, and using smart phone exposure apps. We demonstrate daily air pollution exposure profiles and the air pollution hot-spot profile of a district. Our contributions have applications in policy intervention management mechanisms and design of clean air routing and healthier navigation applications to reduce pollution exposure.
Isolation, characterization, and cytotoxic studies of secondary metabolites from the leaves of Bauhinia foveolata Dalzell: An endemic tree from the Western Ghats, India

Prasanna V. Habbu1*, Narayan Miskin1, Venkatrao H. Kulkarni2, Pradeep Bhat3, Arun Joshi4, Anant Bhandarkar4, Satish Kulkarni5,Sheshagiri R. Dixit6, Jaishree Vaijanathappa6 1Postgraduate Department of Pharmacognosy and Phytochemistry, SET’s College of Pharmacy, Dharwad 580 002, India. 2Postgraduate Department of Pharmacology, SET’s College of Pharmacy, Dharwad 580 002, India. 3Indian Council of Medical Research, National Institute of Traditional Medicine, Belagavi 590 010, India. 4Department of Pharmacognosy, Goa College of Pharmacy, Panaji, India. 5B N Degree College, Dandeli 581 325, India. 6Department of Pharmaceutical Chemistry, JSS College of Pharmacy, S S Nagar, Mysuru 570015, India.
HEURISTIC OPTIMIZATION TECHNIQUES FOR SOLVING THE OPTIMAL PARTITIONING PROBLEM

Many data analysis tasks involve solving an optimization problem where the objective function has such properties that the problem can not be conveniently solved using the conventional analytical optimization methods. The problem of a search for optimal grouping of data is addressed in this paper, where the average silhouette width is used as the objective function. An application of two general purpose trajectory based heuristic optimization methods for the analysis of a real world dataset is shown and the behaviour of the algorithms in response to the values of the control parameters is assessed. The behaviour of the local search method, which is a special case of the more general threshold accepting algorithm, is determined by the function which is used for obtaining the next (neighbour) solution candidate and the performance of the threshold accepting algorithm is further influenced by the threshold values. Both these simple trajectory based methods can be easily implemented and the results of the experiments suggest that the algorithms perform well.
Effect of Azadirachta indica and Milletia ferruginea extracts against Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) infestation management in chickpea

Abstract Nowadays, Helicoverpa armigera (Hubner) (Lepidoptera: Noctuidae) is becoming a serious insect pest of chickpea in Ethiopia and its management has faced considerable challenges, to improve yields in many crops, in most parts of the world. This experiment was initiated with the objective to evaluate the effectiveness of Azadirachta indica and Milletia ferruginea extracts for the management of H. armigera in chickpea from July to December during 2017 and 2018 cropping season under field conditions. The results revealed that aqueous extracts of M. ferruginea and A. indica at 5% concentration either individually or in combinations at 2.5% concentration of each were more effective in reducing per plant H. armigera larval populations, pod damage with increased the subsequent yields during both cropping seasons as compared to control plot. Comparing the net cost–benefit return of each treatment, during 2017 maximum CBR was from the M. ferruginea 5% treated plot and A. indica 5% treated plots during the 2018 year. Thus, locally available botanical extracts would greatly benefit the resource-poor farmers in chickpea production. Future research attentions and considerations as a part of IPM tools, in pest management, are crucial.
RECENT PROGESS IN THE V&V OF THE FRENCH APOLLO3 CODE: 3D FULL CORE ANALYSIS OF THE UH1.2 INTEGRAL EXPERIMENT USING IDT METHOD OF CHARACTERISTICS

Within the framework of the V&V of the new APOLLO3 French deterministic code, this paper focusses on its ability of analyzing integral mock-up experiments through IDT flux solver. In the present case, the UH1.2 experiments involving voiding effects in standard PWR UOX lattices are investigated through straightforward 281 groups 3D transport calculations using recent capabilities of IDT solver based on Sn short-characteristics method. Instead of using standard 2D calculations with imposed experimental Bzwe performed directly 3D 281 groups IDT calculations and checked the results against reference continuous-energy Monte-Carlo (TRIPOLI4) results in a simplified axial configuration. In both cases the IDT solver (with dedicated self-shielding model) shows an excellent agreement with Monte-Carlo results regarding both reactivity and fission rate reference parameters. In particular it is shown that linear short characteristics and refined spatial meshes (3x3x1) are necessary to find the best agreement (less than 1% fission rate and void effect errors). The next step of this work will be devoted to the analysis of the 3D TDTMOC solver in the same configurations with ad-hoc axial reflector treatment. To remove the limitations in terms of CPU time and memory resources of this kind of calculations, ongoing developments devoted to hybrid shared/distributed parallelization (OpenMP/MPI) are also pointed out.
Spectral and wavelet analysis of an aero-acoustic feedback loop in a transonic outflow valve based on Schlieren imaging

On commercial aircrafts, the adequate pressure ratio between the cabin and the exterior is regulated with circular outflow valves. At an operating pressure ratio equivalent to 17000ft in altitude, a tonal noise is observed at 11kHz and higher harmonics. A feedback loop is believed to be responsible for this tonal noise and it is studied on an extruded two-dimensional mock-up representative of the outflow valves including the sealing steps. A spectral analysis is performed on the Schlieren images in terms of pixel intensity for each pixel independently. This accentuates the aliasing phenomena of the higher harmonics when studying the maximum power spectral density. In order to highlight different patterns in the flow, phase maps are computed with respect to a particular pixel at 11kHz and harmonics. Last, the feedback mechanism is visible between the sealing step and the valve with the application of a novel wavelet-based technique on the Schlieren images.
The Fractional Fourier Transform as an Optical Transformation using Discrete Optics

The Fourier transforming properties of a converging lens have long been known. The Fractional Fourier Transform (FRT) is recent development that is a continuous generalisation of the Fourier Transformation (FT) (Mendlovic et Al, 1993). The FRT was originally developed to model propagation of light the quadratically graded index media (notably optical fibres). It can however be shown to be present in even the simplest of optical systems, as we will show later in this article.
Height/Length and Weight Growth Curves and Growth References of Children Aged 0 - 7 in Chongqing by GAMLSS

Aim: Using the generalised additive model for location, the scale and shape (GAMLSS), the standard of height (length), weight and percentage curve of children were formulated to understand the growth law in Chongqing and to provide a reference for clinical and preventive health care work of paediatrics in West China. Methods: Data were collected from the health clinic dataset of children aged 0 - 7 years in the Department of Child Health Care of a Third-Class A hospital in Chongqing from 2010 to 2017. By applying the GAMLSS technology and taking D(μ, σ, ν, τ) as the specific distribution form, BCT as the link function, P-spline function and cubic splines function as the smoothing function, the unit value of age-specific standard deviation of height (length) and weight were obtained, and the percentile map was drawn. Results: Based on the principle of minimum AIC and SBC values, BCT distribution was chosen as the model of the link function. Fitting results of height (length) and weight parameters of boys and girls, standard deviation tables of age and percentile curves were obtained. Conclusions: This study was an exploration of using GAMLSS method to establish a reference value range in the field of children’s growth and development in China. It could supplement the relevant data of Chongqing area for Reference standard for growth and development of children under 7 years of age in China, and also provide a reference for the rational diagnosis of children’s short stature and malnutrition in Chongqing.
ROHAN VASUDEV BHATE. Control oriented transient-dynamic modeling and simulation of a metal V-Belt CVT. (Under the direction of DR. NILABH SRIVASTAVA) With growing demand for environment friendly technologies, automobile manufacturers today are increasingly focusing on ‘Continuously Variable Transmis

ROHAN VASUDEV BHATE. Control oriented transient-dynamic modeling and simulation of a metal V-Belt CVT. (Under the direction of DR. NILABH SRIVASTAVA) With growing demand for environment friendly technologies, automobile manufacturers today are increasingly focusing on ‘Continuously Variable Transmissions’ (CVTs) as an alternative to conventional gearbox transmission; to achieve a balance between fuel economy and vehicle performance. By allowing for a continuous band of gear ratios between the driver shaft and driven shaft, a CVT permits the engine to operate for the most part in a region of high combustion efficiency resulting in lower emissions, and higher fuel economy. A change in clamping force acting on the variable-diameter pulley sheaves causes a variation in transmission ratio of the system due to change in belt pitch radius on the driver and driven pulley. To obtain a required variation in the transmission ratio, a control strategy which is capable of predicting the necessary clamping force under given operating conditions is desired. Understanding and capturing in sufficient detail, the dynamic interactions occurring in a CVT system during transient ratio-shifting states is a critical first step in developing such control strategies. The focus of this research is to develop transient dynamic models of metal V-belt CVT that facilitate the development of efficient and accurate control strategies. The challenge has been to develop a system-level simulation model which is relatively quick yet accurate enough to predict the power transmission behavior and inertial dynamics of a metal pushing V-belt CVT at transient state and steady state operating condition. This thesis report details a transient-dynamic model of a metal V-belt CVT that captures the various
CALIFORNIA LEAST TERN BREEDING SURVEY , 1997 SEASON

Approximately 4,017 pairs of California least terns (Sterna antillarum browni) nested at 38 sites along the coast of California in 1997, as reported by least tern monitors. This represents a 19% increase from 1996 pair estimates, and a 55% increase from 1995 pair estimates, more than compensating for the 7% decrease between 1994 and 1995. Recruitment cannot entirely account for this increase in least tern pairs, as reported fledgling production for both 1994 and 1995 was low. Immigration from other least tern populations has been suggested, and improved survival on wintering grounds may be a factor, but supporting data for these hypotheses are lacking. Overestimates of pair numbers and/or underestimates of fledglings by monitors may also partially explain this apparent increase. Reported pair and fledgling values are always imprecise estimates that are not scientifically derived; moreover, consistent methods for obtaining them, as recommended in annual monitoring packets, are not being used at all nesting sites. Reproductive success and adult survival in 1997 was affected by a number of predators, particularly at San Diego County sites. However, fledgling estimates (3,140 to 3,322) for 1997 were 55% to 64% higher than 1996 and 200% higher than 1995 estimates. The statewide fledglings-per-pair value (0.78 to 0.83) was also higher than for the previous three years. San Diego County supported over 57% of 1997 statewide pairs and produced over 58% of statewide fledglings at 20 nesting sites; the Santa Margarita River nesting sites alone supported over 18% of statewide pairs. More than 50% of the statewide breeding population was concentrated in six nesting sites (NAS Alameda, Venice Beach, Huntington Beach, Santa Margarita River North Beach, Mariner’s Point, and Delta Beach North); these sites also produced over 64% of the State’s fledglings. Santa Margarita River North Beach and NAS Alameda had the highest (over 1.2) fledglings-per-pair values. The Tijuana River nesting sites reported the lowest fledglings-per-pair value (0.01 0.02) in the State due to unprecedented burrowing owl predation on adults, a host of other predators in the site vicinity, and human disturbance and intrusion into the nesting site. No evidence of local prey shortages was reported by monitors for any nesting site in 1997. Keane, K. 1997. California least tern breeding survey, 1997 season. Calif. Dep. Fish and Game, Wildl. Manage. Div. , Bird and Mammal Conservation Program Rep. 98-12 , Sacramento, CA 46 pp.
Effectiveness of friction dampers on seismic response of structure considering soil-structure interaction

The effect of soil structure interaction (SSI) on a single degree of freedom system with and without friction damper is analysed in the paper. The structure with different mass, stiffness and soil conditions was prepared and analysed for ten different earthquake records. Using the non-linear time history analysis, the structural response of a single degree of freedom structure with varying slip load of friction damper was studied. It was observed that the performance of friction dampers is influenced by soil parameters. Also, it was established that an optimum slip load and stiffness of brace changes with respect to the type of soil.
BETA DISTRIBUTED CREDIT SCORE-ESTIMATION OF ITS J-DIVERGENCE

It is known, that Beta distribution could provide a reasonable approximation of distribution of a credit scores, which are the outcome of credit scoring models, i.e. models which are used to determine the probability of default (i.e. when the client fails to meet his or her credit obligations). Credit scoring models are used in practice in the majority of decisions related to the granting of credits, and are thus inherently part of the majority of processes (approval, enforcement, commercial, etc.) in the financial sector. Besides Gini coefficient or K-S statistic, J-divergence (also called Information value) is widely used to assess discriminatory power of credit scoring models. However, empirical estimator using deciles of scores, which is the common way how to compute the J-divergence, may lead to strongly biased results. The main aim of this paper is to describe properties of alternative, both parametric and nonparametric, estimators of J-divergence for credit scoring models with Beta distributed scores. As we show, the parametric and ESIS estimators are much more appropriate to use considering both the bias and mean squared error. Indeed, better estimator leads to better assessment of models, what may lead to better credit scoring models used in practice.
ANALIZY I OPRACOWANIA

We derive and then estimate an augmented growth model to identify major shallow determinants of development of Polish regions at NUTS-2 level of spatial disaggregation. Of particular interest to us is an attempt to assess the impact of investment in transport infrastructure and investment in human capital related to a large influx of Structural Funds after the accession in 2004 to European Union. We utilize various panel data techniques in order to reach the major conclusion. Most of results are in line with theoretical predictions. The obtained results are however sensitive to the introduction of spatial effects and their particular specifications. At regional level agglomeration effects are clear with metropolitan status of a region playing a significant role in development. Polycentric core-periphery model seems to suit the Polish framework conditions.
Obeticholic Acid

Objective: To review the pharmacology, efficacy, and safety of obeticholic acid (OCA) and determine its clinical role relative to other agents in the treatment of patients with primary biliary cholangitis (PBC). Data Sources: A PubMed search (1946 to November 2016) was conducted using the terms INT-747, obeticholic acid, OCA, farnesoid X receptor agonists, FXR agonists, primary biliary cirrhosis, and primary biliary cholangitis. Study Selection and Data Extraction: Phase II and III studies evaluating the use of OCA in PBC patients were included in this review. Data Synthesis: OCA, a farnesoid X receptor (FXR) agonist, is indicated for adult patients with PBC in combination with ursodeoxycholic acid (UDCA) or as monotherapy if unable to tolerate UDCA. Two clinical trials were identified evaluating OCA for the treatment of PBC. Study end points utilized biochemical markers (alkaline phosphatase [ALP] and bilirubin). A phase II study (n = 165) to determine efficacy and safety of OCA at 3 different doses (10 mg, 25 mg, 50 mg) demonstrated statistically significant reductions in ALP (P < .0001 for all OCA groups versus placebo) after 12 weeks. A phase III trial (n = 217) assessed lower OCA doses (5 mg and 10 mg) with a longer study duration (12 months). Statistically significant differences (P < .001) between the 5 to 10 mg group (46%) and the 10 mg group (47%) compared to the placebo group (10%) were found. The primary adverse effect reported in both trials was pruritus. Conclusions: OCA is the first FXR agonist approved for the treatment of PBC. Ongoing research to evaluate clinical outcomes with OCA is currently underway.
PHYSICAL REVIEW MATERIALS 3, 124203 (2019) Unusual valence state in the antiperovskites Sr3SnO and Sr3PbO revealed by x-ray photoelectron spectroscopy

D. Huang ,1,* H. Nakamura,1,† K. Küster,1 A. Yaresko,1 D. Samal,2,3 N. B. M. Schröter,4 V. N. Strocov,4 U. Starke,1 and H. Takagi1,5,6 1Max Planck Institute for Solid State Research, 70569 Stuttgart, Germany 2Institute of Physics, Bhubaneswar 751005, India 3Homi Bhabha National Institute, Mumbai 400085, India 4Swiss Light Source, Paul Scherrer Institute, CH-5232 Villigen PSI, Switzerland 5Institute for Functional Matter and Quantum Technologies, University of Stuttgart, 70569 Stuttgart, Germany 6Department of Physics, University of Tokyo, 113-0033 Tokyo, Japan
SEISMIC ANALYSIS OF STEEL FRAMES WITH SEMI-RIGID AND VISCOUS CONNECTIONS

Ratko Salatić 1 UDK: 624.042. 7.072. 2:519.6 DOI: 10.14415/konferencijaGFS2019.008 Summary: Seismic analysis needs to apply a material-geometric non-linear analysis of steel frames with semi-rigid, eccentric and viscous beam-to-column connection for satisfactory steel frame response. Both nonlinearities, the geometric nonlinearity of the structure, and the material non-linearity of the connections are considered simultaneously. The flexibility of the ends of the beam is modeled using rotary springs at its ends with a nonlinear moment-rotation relation defined by a three-parameter model. The eccentricity of the connection is represented by short infinitely rigid elements. The viscous damping related to the relative velocity of the angle of relative rotation is modeled using rotary viscous dampers. For this model of the beam, a complex flexible matrix of stiffness of the element was introduced. Parametric analysis has determined the influence of connection flexibility, eccentricity, viscous damping and second order theory on the seismic response of the structure. The results of examples are illustrated in diagrams and figures. An adopted model for frame calculations can also be used to seismic response control of a structure through specifically added structural elements, such as dissipative joint connections.
The Impact Of Introducing Virtual Slides As A Replacement For Powerpoint Presentations In The Students’ Microscopy Labs

Introduction/ Background The medical school students in Timisoara, Romania have been studying pathology slides in microscopy labs according to a protocol which uses classical PowerrPoint presentations as guides for understanding the microscopic features of diseases, followed by individual examination of the glass slides under the microscope. Aims We aimed to assess the impact of replacing those presentations with virtual slides (VS). Methods In the middle of the semester, for the benign tumors microscopy lab, which is presented over the course of 2 weeks, we used 3 VS, while the other 3 slides were presented in the classical PowerPoint manner. All attending students from the 3rd year of the Medical School of the University of Medicine and Pharmacy “Victor Babes” Timisoara were asked to fill out an anonymous questionnaire at the end of the lab, in which they graded the difficulty in identifying lesions, chose the best/least understood lesion and pointed out the best manner of presentation. Results 431 valid questionnaires were collected. 52.9% of the students indicated one of the 3 VS as the best understood lesion, while 59.62% chose a different VS as a least understood one. One VS was also the top best (113/332 votes) while another the least understood (34/126 votes) lesion. 74.01% students agreed that VS helped them understand the microscopic criteria better, while 74.71% would like VS to be used in the labs to come. C o nclusion: VS were appreciated by the students as a novelty and a more impressing way of studying pathology slides, but did not dramatically improve the easiness with which they identify and understand the lesions. Work supported by the project „Studiu multicentric privind utilizarea abordului robotic in corelarea scăderii nivelului de adipokine circulante din obezitate cu riscul apariţiei cancerului pelvin ” - ID 1846 / Cod SMIS 48478 - POSCCE