Miracle-dz/UniFAR-FTUs huggingface dataset:
MATHEMATICAL MODELLING OF TRANSIENTS IN THE ELECTRIC DRIVE OF THE SWITCH – THE MAIN EXECUTIVE ELEMENT OF RAILWAY AUTOMATION

Goal. To develop a mathematical and imitation model of the electric drive of the railroad switch as a twoand three-mass electromechanical system based on DC and AC motors as the main executive element of railway automation. The modelling is based on the parameters of the SP-6m switches as the main modification of the executive element of the Ukrainian domestic railways automation system. Methodology. The authors have presented the mechanical part of the railroad switch as a three-mass construction scheme with serial connection of elastic masses. Special attention is paid to the character of the movement of the switch point tongues, when describing them in the form of twoand threemass kinematic schemes, as well as to the mechanical state of the traction and connections as nodes, which are most sensitive to the negative effects of some modes of the railroad switch. Results. A simulation mathematical model of SP-6m switch for AC and DC motors, which allows to study the influence of various factors, has been developed and tested at the stand of the Automation Laboratory of the Ukrainian State University of Railway Transport, Kharkiv. The deviation in the basic parameters of the switch translation process is less than 5 %. Originality. For the first time a mathematical model of an electric drive of the railroad switch is developed, which takes into account elastic relations and load characteristics as an object of controlling the speed of movement of switch point tongues. Practical significance. We have created a mathematical model of the electric drive of the railroad switch which allows to examine the influence of various factors, including the influence of the environment on the operation of the switch. References 10, table 1, figures 10.
Domestic waste policy in Ireland – economization and the role of accounting

PurposeThis paper examines how accounting concepts were utilised in domestic waste collection services in Ireland over the past two decades or so. In comparison to other former “free” services in the Irish context, the prevalence of accounting concepts has been greater and delivered a more successful outcome.Design/methodology/approachDrawing on the concepts of calculation, the “economic” and economization, events around domestic waste policy in Ireland are examined, and the increasing prevalence of concepts such as price, cost and profitability in these processes are a focal point. Publicly available documents such as government policy documents, parliamentary records and media reports are utilised to draw out these concepts. The period of analysis is 1996–2018.FindingsThe findings reveal the role of accounting concepts in the economization of domestic waste policy in Ireland. The result of the economization process was a fully privatised, profit-oriented, price-monitored system.Research limitations/implicationsThis research provides a broad view of accounting concepts in the management of domestic waste. It highlights how waste policy in Ireland travelled through instances of being political and economic over time. The research is limited by its use of secondary data.Originality/valueThis study highlights how accounting concepts were used in varying ways to bring about a satisfactory solution to domestic waste disposal in Ireland, namely the privatisation of waste services.
Wideband linear microstrip array antenna with high efficiency and low side lobe level

In this letter, the design and fabrication of the linear microstrip array antenna by series fed are presented. The array antenna consists of 16 reflector slot‐strip‐foam‐inverted patch (RSSFIP) antennas. The gain and efficiency of the linear array antenna is 16.6 dBi and 61% at 10 GHz, respectively. The antenna has a bandwidth (BW) of 45% from 8.1 to 12.8 GHz (S11 < −10 dB) and side lobe level (SLL) of −25.6 dB across the BW of 19.2% from 9.4 to 10.4 GHz. These are achieved by using a microstrip series fed with defected ground structure (DGS) to feed the patch array antenna. Good agreement is achieved between measurement and simulation results.
Robot-assisted radical prostatectomy in the Middle East: A report on the perioperative outcomes from a tertiary care centre in Lebanon

ABSTRACT Objective To report on the surgical, oncological and early functional outcomes of robot-assisted radical prostatectomy (RARP) at our tertiary care centre, as there is a scarcity of reports on outcomes of robotic surgery from the Middle East. Patients and methods We reviewed the electronic health records for patients undergoing RARP between 2013 and 2019 at the American University of Beirut Medical Center. We collected patients’ demographics and preoperative oncological factors including prostate-specific antigen (PSA), clinical oncological stage, and World Health Organization (WHO) grade. PSA persistence, biochemical recurrence (BCR) and positive surgical margin (PSM) were reported. Complications were categorised by Clavien–Dindo grade. Moreover, the postoperative oncological outcomes including the rates of adjuvant and salvage androgen-deprivation therapy (ADT) and external-beam radiation therapy (EBRT), chemotherapy, and metastasis were reported. Additionally continence and potency results were retrieved. Results For the designated period, 250 patients underwent RARP of which 182 (72.8%) underwent lymph node dissection. The median (interquartile range) anaesthesia time was 330 (285–371) min and the estimated blood loss was 200 (200–300) mL. The overall complication rate was 8%, with 2% Clavien–Dindo Grade III–IV complications. The PSM and BCR rates were 21.6% and 6.4%, respectively. Adjuvant ADT and EBRT was administered to 7.2% of the patients. Functional data was available for 112 patients. Continence was 68%, 82% and 97% of the patients at 3, 6 and 12 months, respectively. For 65 patients who had bilateral nerve sparing potency was 37%, 60% and 83% at 3, 6 and 12 months, respectively. Conclusion This is the largest RARP series from the Middle East. The surgical, oncological and functional outcomes are consistent with those published in the literature. This confirms the safety and efficacy of applying robotic technology in our region during the implementation phase. Abbreviations: ADT: androgen-deprivation therapy; AJCC: American Joint Committee on Cancer; AUBMC: American University of Beirut Medical Center; BCR: biochemical recurrence; CPT: Current Procedural Terminology; EBRT external beam radiation therapy; IQR, interquartile ranges; LOS: length of stay; PLND: pelvic lymph node dissection; PSM: positive surgical margin; (O)(RA)RP, (open) (robot-assisted) radical prostatectomy
Using modelled prey to predict the distribution of a highly mobile marine mammal

Species distribution models (SDMs) are a widely used tool to estimate and map habitat suitability for wildlife populations. Most studies that model marine mammal density or distributions use oceanographic proxies for marine mammal prey. However, proxies could be a problem for forecasting because the relationships between the proxies and prey may change in a changing climate. We examined the use of model‐derived prey estimates in SDMs using an iconic species, the western Arctic bowhead whale (Balaena mysticetus).
Internet of Things in agriculture

This literature review on Internet of Things (IoT) in agriculture and food, provides an overview of existing applications, enabling technologies and main challenges ahead. The results of the review show that this subject received attention by the scientific community from 2010 on and the number of papers has increased since then. The literature on IoT in agriculture and food is very much dominated by Asian scientists, especially from China. In other continents, the concept of IoT was up to recently mainly adopted by non-agricultural scientists. The application area of food supply chains is addressed most frequently, followed by arable farming. Most papers report the results of explorative studies or they present IoT systems that are designed or implemented in prototypes and pilots. The literature reviewed focuses on sensing and monitoring, while actuation and remote control is much less addressed. The findings indicate that IoT is still in its infancy in the agriculture and food domain. Applications are often fragmentary, lack seamless integration and especially more advanced solutions are in an experimental stage of development. Important challenges to overcome this situation include (i) integration of existing IoT solutions by open IoT architectures, platforms and standards, (ii) upscaling the usage of interoperable IoT technologies beyond early adopters especially by the simplification of existing solutions and make it more affordable for end users, and (iii) further improvement of IoT technologies to ensure a broad usability in the diversity of the agri-food domain.
Factorial Sensitivity Analysis of Physical Schemes and Their Interactions in RegCM

It is well known that the choices of physical schemes in Regional Climate Models (RCMs) can cause considerable uncertainties in future climate projections. In this study, a factorial sensitivity analysis method has been proposed to screen out statistically significant schemes and interactions, which assists in selecting the optimized physical scheme combination from a long‐term perspective with affordable computational costs. The Regional Climate Model (RegCM) is used as an example to illustrate how the approach works. In detail, all schemes are fully tested through 120 experimental runs based on a factorial design; the contributions and statistical significance (P value) of individual schemes and their interactions to temperature, precipitation, wind speed, and wind direction are then quantified. The performance of the proposed approach is then demonstrated through a case study of Canada. The results indicate that there exist considerable spatial and temporal simulated variations associated with different scheme combinations. It is also suggested that individual physical schemes have dominant influences on simulated variations, but some effects explained by their interactions are statistically significant and thus cannot be neglected. In particular, the planetary boundary layer (PBL) scheme, moisture scheme, and land surface model are found to be the dominant factors affecting the uncertainties of temperature, precipitation, and wind speed in future climate projections over Canada, respectively. Furthermore, the potential relationships between the vegetation cover conditions and the sensitivity of physical schemes are explored. The proposed approach is an attempt to analyze the sensitivity influenced by not only individual physical schemes and also their multilevel interactions.
Analysis of the In Situ Steering Motion Characteristics and Sensitivity of Disc-Type Underwater Gliders

A disc-type underwater glider (DTUG) has a highly symmetrical shape and is characterized by omnidirectional characteristics and high maneuverability in small bodies of water. To further explore the disc shape’s advantages and characteristics in steering motion, DTUG motion was simulated by Matlab/Simulink. Based on the structural characteristics of DTUG, the motion control equations were established. The simulation of DTUG’s steering motion is carried out and compared with a previous DTUG (LUNA). The sensitivity analysis and Lyapunov stability analysis were also conducted. The results showed that the in situ steering motion can be realized by controlling the position of the center of gravity (CG) of DTUG without moving vertically, which facilitates rapid adjustment of the yaw angle and flexible movement in small bodies of water. The in situ steering motion was significantly affected by the control parameters. The parameter that had the greatest effect on it can be obtained through sensitivity analysis, which can guide DTUG to better adjust the yaw angle under different conditions. The stability analysis showed that the DTUG can remain stable within the range of the control parameter.
National Identity for Breakfast: Food Consumption and the Everyday Construction of National Narratives in Estonia

Abstract Political debates on the Baltics, and in particular Estonia, have often pointed to “nationalisting” and exclusive narratives constructed at the institutional level. Accordingly, emphasis has been put on the lack of opportunities for Russians to integrate into an Estonian context. While acknowledging the shortfalls of the Estonian political project, this article contrasts these views in two ways. By emphasizing people’s agency and their capacity to question, contrast, or even reject the identity markers proposed by Estonian official narratives, we maintain that the integration of Russians might be more advanced than insofar claimed by other studies. We then look at the way identities are lived in an everyday context by inhabitants of Estonia to counterpose national narratives proposed by the state and its political institutions, with the way people live and whether they accept these narratives. By doing this, we explore the role of the everyday in the reconstruction of national identity narratives, in which citizens actively participate in their individual capacity. We suggest that, from a James Scott “infrapolitics” perspective, these micro-actions have a fundamental role in the reshaping of a national identity and its acceptance among citizens.
Evolution of the Design of CH4 Adsorbents

In this review, the evolution of paradigm shifts in CH4 adsorbent design are discussed. The criteria used as characteristic of paradigms are first reports, systematic findings, and reports of record CH4 storage or deliverable capacity. Various paradigms were used such as the systematic design of micropore affinity and pore size, functionalization, structure optimization, high throughput in silico screening, advanced material property design which includes flexibility, intrinsic heat management, mesoporosity and ultraporosity, and process condition optimization. Here, the literature is reviewed to elucidate how the approach to CH4 adsorbent design has progressed and provide strategies that could be implemented in the future.
Phytochemical and in vitro Screening of Justicia spicigera Ethanol Extract for Antioxidant Activity and in vivo Assessment Against Schistosoma mansoni Infection in Mice

Background: Chemotherapy of schistosomiasis by certain drugs is impractical due to the resistance of Schistosoma larvae to schistosomiasis drugs after long treatment period. The aim of this work is to monitor Schistosoma mansoni infection on mice livers after treatment with the ethanolic extract of Justicia spicigera areal parts and the herbal antishistosomal drug (Mirazid); the oleo-resin extract from Myrrh of Commiphora molmol tree. Methods: Liver function enzymes; Aspartate Aminotransferase (AST); Alanine Aminotransferase (ALT), Alkaline Phosphatase (ALP), Gamma Glutamyl TransPeptidase (GGT) and serum total protein content were estimated. Oxidative stress markers; Malondialdehyde (MDA), Glutathione (GSH) and Super Oxide Dismutase (SOD) were also evaluated. Parasitological and histopathological studies through numbers of worm burden and liver pathology pattern were done. Results: The results showed obvious decreases in AST, ALT, ALP, GGT, total protein, MDA and SOD after treatment with plant extract or the selected drug, while GSH recorded significant increase after treatment. A noticeable decrease in worm count and an improvement in histopathological picture of the infected mice liver were detected. Conclusion: The ethanolic extract of Justicia spicigera areal parts recorded antioxidants and antischistosomal effects. Further work is needed to validate its safety and for considering it as anti-schisotosomal drug. A R T I C L E H I S T O R Y Received: September 15, 2017 Revised: November 23, 2017 Accepted: January 15, 2018 DOI: 10.2174/2211352516666180126161247
Data Visualisation Literacy in Higher Education: An Exploratory Study of Understanding of a Learning Dashboard Tool

The visualisation of data has become ubiquitous. Visualisations are used to represent data in a way that is easy to understand and useful in our lives. Each data visualisation needs to be suitable to extract the correct information to complete a task and make an informed decision while minimising the impact of biases. To achieve this, the ability to create and read visualisations has become as important as the ability to read and write. Therefore, the Information Visualisation community is applying more attention to literacy and decision making in data vis-ualisations. Until recently, researchers lacked valid and reliable test in-struments to measure the literacy of users or the taxonomy to detect biased judgement in data visualisations. A literature review showed there is relatively little research on data visualisations for different user data literacy levels in authentic settings and a lack of studies that pro-vide evidence for the presence of cognitive biases in data visualisa-tions. This exploratory research study was undertaken to develop a method to assess perceived usefulness and confidence in reporting dashboards within higher education by adapting existing research in-struments. A survey was designed to test perceived usefulness, per-ceived skill and 24 multiple-choice test items covering six data visuali-sations based on eight tasks. The study was sent to 157 potential par-ticipants, with a response rate of 20.38%. The results showed data vis-ualisations are useful, but the purpose of some data visualisations is not always understood. Also, we showed there is a consensus that re-spondents perceive their data visualisation literacy is higher than they believe their peers to be. However, the higher their overconfidence, the lower their actual data visualisation literacy score. Finally, we discuss the benefits, limitations and possible future research areas.
Fault Diagnosis of Pitch System of Wind Turbine based on Improved Stacked Auto-Encoder Network

In order to improve the accuracy of fault diagnosis of the wind turbine's pitch system, an improved stack autoencoder network is proposed. Based on the Supervisory Control And Data Acquisition (SCADA) data of the wind turbine's electric pitch system, the batch normalization (BN) algorithm was introduced for the gradient dispersion problem in the feature extraction of ordinary autoencoder networks when there are many parameters. This article uses the Adam optimizer to iteratively update the neural network weights based on the training data. Then calculate the cross-entropy loss function and train the network with the minimum loss function as the goal. Finally, the Softmax classifier is used, and its output is the diagnosis and probability of each component of the pitch system. The data set in the pitch control system SCADA is selected. This paper selects the verification set in the pitch control system SCADA and substitutes it into the ordinary stack autoencoder and improved stack autoencoder network (SAE) for comparison and verification. The verification results show that the batch-standardized SAE network has a more optimized network model and higher recognition accuracy, and also provides a strategy for fault diagnosis of wind turbines.
Migration of primordial germline cells is negatively regulated by surrounding somatic cells during early embryogenesis in Drosophila melanogaster

Cell migration is an important morphogenetic process necessary at different stages of individual development and body functioning. The initiation and maintenance of the cell movement state requires the activation of many factors involved in the regulation of transcription, signal transduction, adhesive interactions, modulation of membranes and the cytoskeleton. However, cell movement depends on the status of both migrating and surrounding cells, interacting with each other during movement. The surrounding cells or cell matrix not only form a substrate for movement, but can also participate in the spatio-temporal regulation of the migration. At present, there is no exact understanding of the genetic mechanisms of this regulation. To determine the role of the cell environment in the regulation of individual cell migration, we studied the migration of primordial germline cells (PGC) during early embryogenesis in Drosophila melanogaster. Normally, PGC are formed at the 3rd stage of embryogenesis at the posterior pole of the embryo. During gastrulation (stages 6–7), PGC as a consolidated cell group passively transfers into the midgut primordium. Further, PGC are individualized, acquire an amoeboid form, and actively move through the midgut epithelium and migrate to the 5–6 abdominal segment of the embryo, where they form paired embryonic gonads. We screened for genes expressed in the epithelium surrounding PGC during early embryogenesis and affecting their migration. We identified the myc, Hph, stat92E, Tre-1, and hop genes, whose RNA interference leads to premature active PGC migration at stages 4–7 of embryogenesis. These genes can be divided into two groups: 1) modulators of JAK/STAT pathway activity inducing PGC migration (stat92E, Tre-1, hop), and 2) myc and Hph involved in epithelial morphogenesis and polarization, i. e. modifying the permeability of the epithelial barrier. Since a depletion of each of these gene products resulted in premature PGC migration, we can conclude that, normally, the somatic environment negatively regulates PGC migration during early Drosophila embryogenesis.
Influence of the Tree Decay Duration on Mechanical Stability of Norway Spruce Wood (Picea abies (L.) Karst.)

Wood properties have an influence on the safety around the tree itself as well as on actual possibilities of using wood. The article focuses on the wood properties of the Norway spruce (Picea abies (L.) Karst. ) in reference to the time since the tree has decayed. The study was conducted among mature tree stands of spruce in Białowieża Forest, where over the last 10 years there has been a weakening of spruce tree stands due to water deficiency which has contributed to the gradation of the European spruce bark beetle (Ips typographus). The study focused on spruce wood of living and healthy specimens as well as the wood of standing trees which has decayed between one and five years before the sample was collected. The findings indicate a gradual decrease in wood properties as time passed since the physiological decay of the tree. Significant differences in the decrease of mechanical wood properties have been observed in trees which had been decayed for 3 years and they should be considered life and health hazard for people and animals.