bluuebunny/crossref_metadata_2025 huggingface dataset:
Risk Assessment of Smart Substation Relay Protection System Based on Markov Model and Risk Transfer Network
Authors: Nan Dongliang , Wang Weiqing , Mahfoud Rabea Jamil , Haes Alhelou Hassan , Siano Pierluigi , Parente Mimmo , Zhang Lu
Published: April 2020

To effectively guarantee a secure and stable operation of a smart substation, it is essential to develop a relay protection system considering the real-time online operation state evaluation and the risk assessment of that substation. In this paper, based on action data, defect data, and network message information of the system protection device (PD), a Markov model-based operation state evaluation method is firstly proposed for each device in the relay protection system (RPS). Then, the risk assessment of RPS in the smart substation is carried out by utilizing the risk transfer network. Finally, to highly verify the usefulness and the effectiveness of the proposed method, a case study of a typical 220 kV substation is provided. It follows from the case study that the developed method can achieve a better improvement for the maintenance plan of the smart substation.
An Energy Graph-Based Approach to Fault Diagnosis of a Transcritical CO2 Heat Pump
Authors: Uren Kenneth R. , van Schoor George , van Eldik Martin , de Bruin Johannes J. A.
Published: April 2020

The objective of this paper is to describe an energy-based approach to visualize, identify, and monitor faults that may occur in a water-to-water transcritical CO 2 heat pump system. A representation using energy attributes allows the abstraction of all physical phenomena present during operation into a compact and easily interpretable form. The use of a linear graph representation, with heat pump components represented as nodes and energy interactions as links, is investigated. Node signature matrices are used to present the energy information in a compact mathematical form. The resulting node signature matrix is referred to as an attributed graph and is populated in such a way as to retain the structural information, i.e., where the attribute points to in the physical system. To generate the energy and exergy information for the compilation of the attributed graphs, a descriptive thermal–fluid model of the heat pump system is developed. The thermal–fluid model is based on the specifications of and validated to the actual behavioral characteristics of a physical transcritical CO 2 heat pump test facility. As a first step to graph-matching, cost matrices are generated to represent a characteristic residual between a normal system node signature matrix and a faulty system node signature matrix. The variation in the eigenvalues and eigenvectors of the characteristic cost matrices from normal conditions to a fault condition was used for fault characterization. Three faults, namely refrigerant leakage, compressor failure and gas cooler fouling, were considered. The paper only aims to introduce an approach, with the scope limited to illustration at one operating point and considers only three relatively large faults. The results of the proposed method show promise and warrant further work to evaluate its sensitivity and robustness for small faults.
Modeling of Coal Mill System Used for Fault Simulation
Authors: Hu Yong , Ping Boyu , Zeng Deliang , Niu Yuguang , Gao Yaokui
Published: April 2020

Monitoring and diagnosis of coal mill systems are critical to the security operation of power plants. The traditional data-driven fault diagnosis methods often result in low fault recognition rate or even misjudgment due to the imbalance between fault data samples and normal data samples. In order to obtain massive fault sample data effectively, based on the analysis of primary air system, grinding mechanism and energy conversion process, a dynamic model of the coal mill system which can be used for fault simulation is established. Then, according to the mechanism of various faults, three types of faults (i.e., coal interruption, coal blockage and coal self-ignition) are simulated through the modification of model parameters. The simulation shows that the dynamic characteristic of the model is consistent with the actual object, the relative error of each output variable is less than 2.53%, and the total average relative error of all outputs is about 1.2%. The model has enough accuracy and adaptability for fault simulation, and the problem of massive fault samples acquisition can be effectively solved by the proposed method.
An Acquisition Method of Agricultural Equipment Roll Angle Based on Multi-Source Information Fusion
Authors: Li Yang , Jia Honglei , Qi Jiangtao , Sun Huibin , Tian Xinliang , Liu Huili , Fan Xuhui
Published: April 2020

Accurately obtaining roll angles is one of the key technologies to improve the positioning accuracy and operation quality of agricultural equipment. Given the demand for the acquisition of agricultural equipment roll angles, a roll angle monitoring model based on Kalman filtering and multi-source information fusion was established by using the MTi-300 AHRS inertial sensor (INS) and XW-GI 5630 BeiDou Navigation Satellite System (BDS), which were installed on agricultural equipment. Data of the INS and BDS were fused by MATLAB; then, Kalman filter was used to optimize the data, and the state equation and measurement equation of the integrated system were established. Then, an integrated monitoring terminal man–machine interactive interface was designed on MATLAB GUI, and a roll angle monitoring system based on the INS and BDS was designed and applied into field experiments. The mean absolute error of the integrated monitoring system based on multi-source information fusion during field experiments was 0.72°, which was smaller compared with the mean absolute errors of roll angle monitored by the INS and BDS independently (0.78° and 0.75°, respectively). Thus, the roll angle integrated model improves monitoring precision and underlies future research on navigation and independent operation of agricultural equipment.
End-to-End Deep Learning Fusion of Fingerprint and Electrocardiogram Signals for Presentation Attack Detection
Authors: M. Jomaa Rami , Mathkour Hassan , Bazi Yakoub , Islam Md Saiful
Published: April 2020

Although fingerprint-based systems are the commonly used biometric systems, they suffer from a critical vulnerability to a presentation attack (PA). Therefore, several approaches based on a fingerprint biometrics have been developed to increase the robustness against a PA. We propose an alternative approach based on the combination of fingerprint and electrocardiogram (ECG) signals. An ECG signal has advantageous characteristics that prevent the replication. Combining a fingerprint with an ECG signal is a potentially interesting solution to reduce the impact of PAs in biometric systems. We also propose a novel end-to-end deep learning-based fusion neural architecture between a fingerprint and an ECG signal to improve PA detection in fingerprint biometrics. Our model uses state-of-the-art EfficientNets for generating a fingerprint feature representation. For the ECG, we investigate three different architectures based on fully-connected layers (FC), a 1D-convolutional neural network (1D-CNN), and a 2D-convolutional neural network (2D-CNN). The 2D-CNN converts the ECG signals into an image and uses inverted Mobilenet-v2 layers for feature generation. We evaluated the method on a multimodal dataset, that is, a customized fusion of the LivDet 2015 fingerprint dataset and ECG data from real subjects. Experimental results reveal that this architecture yields a better average classification accuracy compared to a single fingerprint modality.
Research of methods of protecting organizations from inimical mergers and acquisitions
Authors: Naydis O.A. , Naydis I.O.
Published: April 2020

The article considers the types, forms, mechanisms and classification of mergers and acquisitions, identifies their positive effects, and studies the tactics of acquisitions. The analysis of anti-capture measures: active and preventive methods of protection against hostile mergers and acquisitions. A comparative analysis of anti-capture measures with acquisitions tactics was carried out, the advantages and disadvantages of their application were identified.
Risk management of interfunctional interactions of service process at catering facilities: practical and methodical aspects
Authors: Glebova E.V. , Lapteva E.P. , Lisakovskaya M.A.
Published: April 2020

Nowadays, improving the competitiveness of catering facilities (CF) by improving the quality of services is a key task in this area of activity. The quality of services provided by CF is ensured by a multitude of parameters, including the degree of accessibility, reliability, characteristics of personnel and their interactions, etc. Each parameter is important for the functioning of CF, but the quality of communications between personnel is currently a problematic issue in many CF, because heads of facilities often pay more attention to the processes of production and sale of products themselves, but forget about establishing of high-quality interactions between these two processes. Part of the communication between staff is interfunctional interactions. The absence of any regulation of such interactions is an important and extremely urgent problem, taking into account the current growth of popularity of CF, the growth in sales and turnover of such facilities, and, consequently, the complexity of the organizational structures of CF. The object of the study were interfunctional interactions of the service process in public catering enterprises. Accordingly, the subject of the study were risks arising from interfunctional interactions of the service process in CF. The main objective of the study was to develop the theoretical and methodological aspects of risk management of interfunctional interactions of the service process at CF.
The use of spectral natural gamma-ray analysis in reservoir evaluation of siliciclastic sediments: a case study from the Middle Jurassic of the Harald Field, Danish Central Graben
Authors: Fabricius Ida L. , Dahlerup Fazladic Louise , Steinholm Armgard , Korsbech Uffe
Published: April 2020

A cored sandstone interval from the Middle Jurassic Harald Field of the Danish North Sea was chosen for an investigation of the mineralogical sources for the gamma-ray activity, and with the purpose of determining how the Spectral Natural Gamma (SNG) log could be used as an indicator of reservoir quality. Core intervals of quartz arenites and quartz wackes were selected. Although no linear relationship was found between clay content and potassium (K), thorium (Th), or uranium (U), the K content characterises three discrete lithofacies. Lithofacies I has a grain-supported texture, with a predominance of quartz grains; only minor fine-grained matrix is present. Sandstones of lithofacies I have a low K content and most of the K is hosted in feldspar. Porosity varies between 23% and 28% and permeability is in the range 200–2000 mD. Lithofacies II sandstones have a grain-supported texture, with a predominance of quartz grains; fine-grained matrix fills the intergranular volume. Sandstones of lithofacies II have an intermediate K content, with K-feldspar, mica, and illite as the main sources. Porosity varies between 11% and 17% and permeability is in the range 0.4–25 mD. Lithofacies III has a matrix-supported texture with quartz grains floating in a clay-rich matrix. Samples from lithofacies III have the highest K signal. Illite and illitised kaolinite are roughly equal in importance as sources of K. Porosity is up to 11% and permeability up to 0.5 mD. The Th and U content of all lithofacies is governed primarily by the presence of heavy minerals; no apparent general relationship between U and Total Organic Carbon (TOC) was found. Comparisons between the core measurements of K, Th, and U, and the SNG log disclosed a discrepancy between the calibrations of laboratory and borehole measurements. For U the discrepancy contains an erratic element, whereas the difference for K and Th can be eliminated by correction factors. Thus, the conclusions based on laboratory measurements appear to be applicable to the log data, and, using corrected K values, the facies subdivision can be extended throughout the reservoir section based on the SNG log.
Triassic and Jurassic transtension along part of the Sorgenfrei–Tornquist Zone in the Danish Kattegat
Authors: Egebjerg Mogensen Tommy , Korstgård John A.
Published: April 2020

In the Kattegat area, Denmark, the Sorgenfrei–Tornquist Zone, an old crustal weakness zone, was repeatedly reactivated during Triassic, Jurassic and Early Cretaceous times with dextral transtensional movements along the major boundary faults. These tectonic events were minor compared to the tectonic events of the Late Carboniferous – Early Permian and the Late Cretaceous – Early Tertiary, although a dynamic structural and stratigraphic analysis indicates that the Sorgenfrei–Tornquist Zone was active compared to the surrounding areas. At the end of the Palaeozoic, the area was a peneplain. Regional Triassic subsidence caused onlap towards the north-east, where the youngest Triassic sediments overlie Precambrian crystalline basement. During the Early Triassic, several of the major Early Permian faults were reactivated, probably with dextral strike-slip along the Børglum Fault. Jurassic – Early Cretaceous subsidence was restricted primarily to the area between the two main faults in the Sorgenfrei–Tornquist Zone, the Grenå–Helsingborg Fault and the Børglum Fault. This restriction of basin development indicates a change in the regional stress field at the Triassic–Jurassic transition. Middle Jurassic and Late Jurassic – Early Cretaceous subsidence followed the Early Jurassic pattern with local subsidence in the Sorgenfrei–Tornquist Zone, but now even more restricted to within the zone. The subsidence showed a decrease in the Middle Jurassic, and increased again during Late Jurassic – Early Cretaceous times. Small faults were generated internally in the Sorgenfrei–Tornquist Zone during the Mesozoic with a pattern that indicates a broad transfer of strike-slip/oblique-slip motion from the Grenå–Helsingborg Fault to the Børglum Fault.
Des​criptive text to the Geological map of Greenland, 1:500 000, Lambert Land, Sheet 9
Authors: Higgins Anthony K
Published: April 2020

The Lambert Land 1:500 000 scale geological map sheet covers a segment of the East Greenland Caledonian orogen extending between latitudes 78°–81°N and longitudes 13°–29°W. The region was geologically mapped in the summers of 1978–1980 and 1993–1995 as part of a regional Survey mapping programme, and the map sheet was printed in 2000. The region covered by the Lambert Land map sheet comprises a northern segment of the East Greenland Caledonides that is in thrust contact with the Caledonian foreland. The contact is an Edipping, NNE–SSW-trending thrust that runs through Kronprins Christian Land from west of Blåsø in the south to the region east of Sjælland Fjelde in the north. The Caledonian foreland succession is exposed in Mylius-Erichsen Land and Amdrup Højland on the west side of Danmark Fjord, and in western Kronprins Christian Land on the east side of Danmark Fjord. The several kilometre thick foreland succession ranges in age from Palaeoproterozoic to Silurian. In western Kronprins Christian Land the undeformed Ordovician–Silurian carbonates of the foreland pass eastwards into the so-called Thinskinned fold-and-thrust belt developed in the same strata that farther eastwards are structurally overlain by the allochthonous Vandredalen thrust sheet. This thrust sheet is in its turn overlain by a group of thrust sheets that make up the mountainous high ground of central parts of Kronprins Christian Land, and structurally form the so-called Western thrust belt; these rock units have a deeper crustal origin. In the extreme east the Nørreland thrust sheet is exposed in a coastal strip that comprises Palaeoproterozoic crystalline gneisses that include eclogite-facies enclaves and units of meta-igneous and metasedimentary rocks.

Post-Caledonian rocks crop out in the north-eastern coastal parts of the map sheet area, and include sedimentary rocks of early Carboniferous to late Jurassic age that form part of the Wandel Sea Basin succession. Undifferentiated Quaternary deposits, ground moraine, alluvial fans and talus are distinguished where they obscure significant areas of bedrock.
Efek variasi suhu dan waktu blanching pada kualitas manisan nangka kering (Artocarpus heterophyllus)
Authors: Tantalu Lorine , Handayani Sri , Rozana Rozana , Wunga Ferianus
Published: April 2020

The aim of this study was to obtain a combination of blanching temperature and time in making candied jackfruit. Randomized factorial was used as research design within two factors, namely blanching temperature (80oC, 85oC, and 90oC) and blanching time (2, 3, and 4 minutes). The quality test of candied dried jackfruit includes organoleptic test of the hedonic scale scoring method namely taste, color, aroma, and texture. Chemical tests include water content, sugar content, and yield. The best treatment is a combination of 90oC blanching temperature and 4 minutes blanching time, which produces a product with a water content of 40.91%, a sugar content of 73.72%, even for yield raised up to 35.51%. Taste, color, aroma, and texture parameters did not show any real effect. Based on the results of the business feasibility analysis, it is found that the processing of the candied jackfruit processing industry is feasible to be cultivated on a small industrial scale.
ANALISIS RATIFIKASI ASEAN CHINA FREE TRADE AGREEMENT OLEH INDONESIA DALAM PERSPEKTIF HUKUM INTERNASIONAL
Authors: Ekakusumawati Enni
Published: April 2020

Indonesia sulit melakukan penundaan isi perjanjian, amandemen dan pengakhiran perjanjin AFCTA , Ketentuan yang paling memungkinkan untuk dilakukan oleh indonesia adalah menggunakan aturan WTO dimana pemberlakuan ini dapat diterapkan bagi negara yang belum dapat mengikuti perkembangan liberalisme perdagangan, aturan ini difasilitasi dengan mekanisme perlindungan seperti anti dumping dan saveguard. Oleh karena itu ketentuan yang dapat digunakan indonesia dalam penerapan ACFTA adalah dengan menerapkan fasilitas saveguard dalam WTO sebagai solusi untuk menyelamatkan kepentingan nasional.
KEWAJIBAN PEMBERIAN BANTUAN HUKUM OLEH ADVOKAT DALAM KEDUDUKANNYA SEBAGAI OFFICIUM NOBILE
Authors: Putranto Urip
Published: April 2020

Penelitian ini bertujuan untuk mengetahui (1) pelaksanaan pemberian bantuan hukum oleh advokat kepada masyarakat pencari keadilan, (2) bentuk pengawasan dari organisasi profesi advokat terhadap pelaksanaan kewajiban pemberian bantuan hukum oleh advokat. Penelitian ini dilaksanakan di Makassar, yaitu di Kantor Perhimpunan Bantuan Hukum dan HAM Makassar (PBH2M), Lembaga Bantuan Hukum Makassar (LBHM), Pos Bantuan Hukum (Posbakum) Pengadilan Negeri dan Pengadilan Agama Makassar. Tipe penelitian yang digunakan, yaitu penelitian hukum empiris. Pengambilan sampel dilakukan secara purposive sampling. Data diperoleh meialui wawancara langsung dan studi dokumentasi. Anaiisis data dilakukan secara kualitatif dan dipaparkan secara deskriptif. Hasil penelitian menunjukkan bahwa penerapan pemberian bantuan hukum oleh advokat belum berjalan efektif dan masih terbatas. Terdapat kendala-kendala dari penerapan pemberian bantuan hukum baik meialui posbakum pengadilan maupun lembaga bantuan hukum, antara lain yang terkait alokasi dana, seleksi penerima bantuan hukum dan kondisi internal maupun eksternal lembaga bantuan hukum, posbakum pada Pengadilan Negeri maupun Pengadilan Agama Makassar; pengawasan yang dilakukan oleh organisasi advokat tidak optimal. Sanksi yang diatur dalam Undang-Undang Advokat tidak tegas diberlakukan terhadap advokat yang tidak melaksanakan kewajiban pemberian bantuan hukum cuma-cuma terhadap masyarakat pencari keadilan.
Pembuatan Aplikasi Marketplace Makanan Ringan Berbasis Android dengan Menggunakan Framework Cordova
Authors: Gozali Hendra Wijaya , Lumaris Riandika
Published: April 2020

Di era globalisasi saat ini, perkembangan ilmu pengetahuan dan teknologi informasi berkembang sangat pesat sehingga memudahkan kita dalam melakukan aktifitas. Contoh pesatnya perkembangan teknologi informasi adalah perkembangan dari smartphone yang memberikan dampak besar pada kebiasaan penggunaan device tersebut. Perubahan tersebut adalah pada penggunaan device tersebut yang pada awalnya digunakan hanya untuk keperluan komunikasi suara antar manusia, pesan singkat, pesan elektronik, dan keperluan browsing menuju pada penggunaan yang mulai menunjang kebutuhan sehari-hari, baik untuk keperluan bekerja maupun kebutuhan akan hiburan. Tetapi sekarang kemampuan smartphone sudah sangat canggih, dimana dulunya hanya bisa dikerjakan oleh komputer sekarang dapat dilakukan oleh smartphone seperti mengirimkan informasi-informasi dengan cepat dan mudah. Cordova digunakan dalam mendukung pembuatan aplikasi ini untuk dapat mempercepat dan mempermudah proses pembuatan aplikasi ini. Plugin yang disediakan oleh cordova juga akan mendukung pengembangan aplikasi ini sehingga dapat memenuhi kebutuhan penjual dan pembeli dalam melakukan transaksi. Dengan aplikasi ini, penjual dan pembeli akan lebih cepat dan mudah dalam mendapatkan makanan ringan yang mereka inginkan secara spesifik. Penggunaan aplikasi ini akan dapat mempermudah pengguna dalam mencari makanan ringan tanpa perlu pergi ke mall atau ke toko. Aplikasi ini juga dapat mempercepat waktu pencarian mmakanan ringan yang kita inginkan. Aplikasi ini dapat mendukung proses transaksi jual beli makanan ringan secara cepat dan efisien. Dari hasil kuisioner yang telah dikumpulkan, terbukti lebih dari 60% responden menyatakan aplikasi Snackers mudah utuk digunakan user sebagai pembeli mampun penjual.
First record of the moorland clouded yellow Colias palaeno (Linnaeus, 1761) (Lepidoptera: Pieridae) in Altai Krai (Russia, West Siberia) with notes on its DNA barcode
Authors: Kuftina Galina N. , Shapoval Nazar A. , Yakovlev Roman V. , Krupitsky Anatoly V. , Kuvaev Andrey V. , Masharsky Alexey E.
Published: April 2020

Colias palaeno (Linnaeus, 1761) is reported from Altai Krai for the first time. The DNA barcode of the collected specimen was analysed and compared with molecular data on European populations of C. palaeno available in the public databases GenBank (http://www.ncbi.nlm.nih.gov) and BOLD (http://www.boldsystems.org). The molecular analysis has shown that the specimen from Altai Krai shares mitochondrial barcode with some specimens from mountain populations of the Alps and the Czech Republic, and differs significantly from lowland populations of C. palaeno from Central and Northern Europe.
Atlante fotografico degli uccelli del Parco Nazionale della Sila con inediti contributi sull’avifauna silana
Authors: Ferlini Flavio
Published: April 2020

Not available
Reviewer Acknowledgements for Asian Culture and History, Vol. 12, No. 1
Authors: Bai Joseph
Published: April 2020

Reviewer Acknowledgements for Asian Culture and History, Vol. 12, No. 1, 2020
Technological innovations and firms’ productivity in new patent regime: Evidences from Indian pharmaceutical industry
Authors: Dhanora Madan , Danish Mohd Shadab , Sharma Ruchi
Published: April 2020

Innovative firms enjoy more market benefits by conducting both technological (product and process) and nontechnological (organizational and marketing) innovations. This study aims to examine the relationship between technological innovations and firms’ productivity in Indian pharmaceutical industry in new patent regime. In particular, we analyze the direct impact of product and process innovation on the productivity of 168 Indian pharmaceutical firms over 2000–2013. Findings of this study reveal that technological innovations are positive source of firms’ productivity. However, this relationship varies with types of technological innovations and also ownership structure of firms. Moreover, this study also finds that the impact of technological innovation is stronger for multinational enterprises.
Synthesis and Crystal Structure of SnPd3D0.138(7) by Neutron Powder Diffraction
Authors: Stevenson Siobhan Christina , Götze André , Kohlmann Holger
Published: April 2020

Palladium‐rich intermetallic compounds have attracted attention for their use in heterogeneous catalysis and their interesting hydrogenation properties. SnPd3 was synthesized from the elements using selenium as a mineralizing agent. The stoichiometric composition was confirmed by energy‐dispersive X‐ray spectra (Sn0.98(5)Pd3.02(5)). X‐ray diffraction showed an ordered AuCu3 type structure [Pm3m, a = 397.799(1) pm]. SnPd3 takes up hydrogen at 703 K under 5.0 MPa, resulting in a volume expansion of 0.4 %. The crystal structure was determined from neutron powder diffraction data of the deuteride. SnPd3D0.138(7) belongs to the cubic anti‐perovskite type [Pm3m, a = 398.338(11) pm]. Deuterium occupies [Pd6] octahedral sites [d(Pd–D) = 199.169(6) pm] in a statistical manner.
Power in vulnerability: widows and priest holes in the early modern English Catholic community
Authors: Binczewski Jennifer
Published: April 2020

Catholics in post-Reformation England faced new challenges in their resolution to remain faithful to Rome following the passage of anti-Catholic laws in the 1580s. These legislative attempts to root out Catholicism resulted in the creation of a clandestine community where private households became essential sites for the survival of Catholic worship. This article extends prior studies of the role of women in the English Catholic community by considering how marital status affected an individual’s ability to protect the ‘old faith’. By merging the study of widowhood with spatial analyses of Catholic households, I argue that early modern patriarchal structures provided specific opportunities inherent in widowhood that were unavailable to other men and women, whether married or single. While widowhood, in history and historiography, is frequently considered a weak, liminal, or potentially threatening status for women, in the harsh realities of a clandestine religious minority community, these weaknesses became catalysts for successful subversion of Protestant authority. Assisted by their legal autonomy, economic independence, and the manipulation of gendered cultural stereotypes, many Catholic widows used their households to harbour priests and outmanoeuvre searchers. This argument maintains that a broader interpretation of the role of women and marital status is essential to understanding the gendered nature of post-Reformation England.
Realizing doubles: a conjugation zoo
Authors: Pitsch Wolfgang , Scherer Jérôme
Published: April 2020

Conjugation spaces are topological spaces equipped with an involution such that their fixed points have the same mod 2 cohomology (as a graded vector space, a ring and even an unstable algebra) but with all degrees divided by two, generalizing the classical examples of complex projective spaces under complex conjugation. Spaces which are constructed from unit balls in complex Euclidean spaces are called spherical and are very well understood. Our aim is twofold. We construct ‘exotic’ conjugation spaces and study the realization question: which spaces can be realized as real loci, i.e., fixed points of conjugation spaces. We identify obstructions and provide examples of spaces and manifolds which cannot be realized as such.
Compensation for the Decoherence Effect in Heterodyne Detection of Rough Targets and a Target Vibration Characteristic Measurement System
Authors: Cao Changqing , Su Xiyuan , Liu Yutao , Zeng Xiaodong , Feng Zhejun , Shen Jingshi , Wang Ting , Yan Xu
Published: April 2020

In practical applications of signal detection, the roughness of a target surface significantly affects detection efficiency. In this paper, we propose a signal processing method that improves the sensitivity of a detection system by up to 100 times. In experiments, the target vibration measurement system successfully captured an automotive vibration power spectrum using the proposed signal processing method. This technology opens a new avenue for development in the field of rough surface target detection and recognition.
Predicting Clinical Success in Speech-Language Pathology Graduate Students
Authors: Richardson Lydia , Roberts Elizabeth , Victor Shelley
Published: April 2020

Purpose

Admissions committees rely heavily on quantitative academic variables such as undergraduate grade point average (UGPA) and scores on the Graduate Record Examination (GRE). However, the ability of these factors to predict the clinical success of speech-language pathology (SLP) graduate students has not been substantiated. The purpose of the current study was to examine the relationship between academic variables (i.e., UGPA, major grade point average, GRE scores) and nonacademic variables (i.e., age, personality type, prior work experience in the field) and determine the degree to which each of these variables predicts clinical success.

Method

Data were extracted from academic records of 45 students enrolled in a graduate SLP program at a public institution of higher learning between 2014 and 2016. Descriptive statistics and correlation coefficients were used to identify the relationships between academic and nonacademic variables with clinical success.

Results

Correlation results did not identify a significant relationship between academic variables and clinical success as well as between nonacademic variables and clinical success. However, relationships between the academic variables and nonacademic variables were discovered. Predictive power of clinical success was not identified due to lack of correlations between the variables.

Conclusions

Academic variables (GRE, UGPA, major grade point average) nor nonacademic variables (age, personality type, previous work experience) were found to have a significant correlation to clinical success in SLP graduate students. There continues to be a lack of evidence in identifying individual variables as sole predictors for success in SLP graduate programs.
Tranexamsäure in den ersten Stunden der Traumaversorgung
Authors: Hofer Stefan , Wolber Martin , Brenner Thorsten
Published: April 2020

In der klinischen Betrachtung wird die Tranexamsäure (TXA) von vielen Therapeuten als eine Art „Magic Bullet“ bei der präklinischen Behandlung von schwer blutenden Patienten gesehen. Obwohl durch Leitlinien angeraten, wird die generelle Verwendung der TXA im Rahmen des zeitlichen Aspekts der Applikation als auch im Zusammenhang mit speziellen traumaassoziierten Krankheitsbildern wie der traumainduzierten Koagulopathie (TIK) zunehmend kritisch diskutiert.
Schmerzmanagement
Authors: Wiederhold Dietmar
Published: April 2020

Patienten an der Hämodialyse (HD) werden schätzungsweise 320-mal im Jahr punktiert. Untersuchungen zufolge haben 48 % der Patienten Angst vor Schmerzen und mehr als 20 % empfinden den Schmerz als unerträglich, sodass Punktionsschmerzen zu Depressionen und verminderter Lebensqualität führen können. Neben pharmakologischen Therapien, wie topischen Salben und Sprays, die Nebenwirkungen, wie allergische Reaktionen, verursachen können, sind nichtpharmakologische Maßnahmen oft einfach in der Anwendung und können eine kostengünstige Alternative oder Ergänzung sein. Frühere Untersuchungen zeigten schmerzstillende Effekte durch das Hören von Musik bei dialyseinduzierten Muskelkrämpfen und weiteren Schmerzereignissen. Daher war es das Ziel der vorliegenden Studie, den Effekt beruhigender Musik auf den Punktionsschmerz bei HD-Patienten zu bewerten.
1500 Euro Preisgeld
Authors: Schäfer Christian
Published: April 2020

Die Thieme Gruppe schreibt im Jahr 2020 wieder den Förderpreis Nephrologische Pflege aus und stiftet das Preisgeld von 1500 Euro.
A review of the 'noose and flag' method to capture free-ranging koalas
Authors: Madani G. F. , Ashman K. R. , Mella V. S. A. , Whisson D. A.
Published: April 2020

The capture of free-ranging individuals is often needed for research, population management and health assessment. Because of its iconic and threatened species status, methods to capture koalas (Phascolarctos cinereus) receive disproportionate scrutiny. We collated data on koala capture frequency, duration held by noose and incidents from six studies of koalas in Victoria and New South Wales that all used the ‘noose and flag’ method as the primary method of capture. Adverse events occurred in less than 1% of all captures (7 of 1236). Mean capture time in three of four locations recording duration held by noose was less than five minutes, minimising the duration of distress to the koala while allowing researchers to maintain control over the animal. The exception to this was a study in far south-west Victoria where trees were tall and koalas were relatively unresponsive to flagging, resulting in a longer mean duration held by noose (11.2 minutes). The reviewed capture data of the ‘noose and flag’ method suggest that this is an effective and safe capture method, allowing for capture of multiple individuals in a short period, and suitable for most habitat types and situations.
Indiscriminate feeding by an alien population of the spotted-thighed frog (Litoria cyclorhyncha) in southern Australia and potential impacts on native biodiversity
Authors: Taylor Christine M. , Keppel Gunnar , O'Sullivan Shaun , Peters Stefan , Kerr Gregory D. , Williams Craig R.
Published: April 2020

Litoria cyclorhyncha (Hylidae) is native to southern Western Australia, but a naturalised population has established on the Eyre Peninsula, South Australia. We investigated the diet of this exotic population to assess potential impacts on biodiversity and ecosystems. Seventy-six frogs were collected from three different habitats and their diet items assigned to parataxonomic units (PU) within orders. Stomach contents were diverse, containing 467 prey items from 19 orders and 135 PU, with extrapolation suggesting a diet of ~200 PU. Shannon diversity estimates of prey items consumed produced different rankings for the three habitats at the PU and order level. Therefore, estimates at the order level may not be representative of the actual diversity of prey items. L. cyclorhyncha consumed mainly arthropods and low numbers of conspecific young frogs, geckos and a juvenile house mouse. This generalist, indiscriminate predatory diet is similar to that of other hylids and implies that the species poses a risk to native biodiversity and ecosystem processes by predation and competition. Therefore, further spread of this species needs to be prevented. Our findings can inform effective policies and management actions to mitigate future impacts of L. cyclorhyncha.
The ‘Mere Civility’ of Equality Law and Compelled-Speech Quandaries
Authors: Oleske James M
Published: April 2020

When, if ever, do business owners have a right to be exempted from laws prohibiting discrimination in the commercial marketplace? Although public debate over this question often focuses on the issue of religious liberty, litigants seeking exemptions in court have placed equal or greater reliance on arguments about compelled speech. This article examines how such arguments have been employed in recent high-profile cases in both the UK and the USA. The article also addresses a new variation on the exemption argument inspired by Teresa Bejan’s book, Mere Civility, and the allegedly ‘minimal’ conception of civility Roger Williams advocated in the 17th century. After explaining why reliance on Bejan and Williams is misplaced, the article turns to the key questions that arise under modern compelled-speech doctrine when a business owner seeks to resist an equal-service mandate. The US Supreme Court ultimately sidestepped those questions in Masterpiece Cakeshop, Ltd v Colorado Civil Rights Commission, while the UK Supreme Court (UKSC) offered cursory and unsatisfactory answers in Lee v Ashers Baking Co. This article fills the gap with a more thorough analysis.
Registration requirements according to the TVTG (aka the Token Act/Blockchain Act)
Authors: Nägele Thomas
Published: April 2020

The examination of the economic use of blockchain technology and the impact of the so-called token-based economy have enjoyed great popularity in Liechtenstein in recent years. The legal aspect of tokenized structures and assets was a major challenge for the legislator. In order to ensure a solid legal framework and legal certainty for entrepreneurs and users, the Liechtenstein parliament passed the Tokens and Trusted Technology Service Providers Act (“TVTG”). For the first time, a nation has regulated this emerging future market through comprehensive legislation and offers companies optimal framework conditions. The TVTG has been in force since 1 January 2020. This article seeks to outline the legal background for the registration requirements for Trustworthy Technology Service Providers.
Gonadal sex and animal experimentation: Perfection vs. 3R principle?
Authors: Bie Peter , Debrabant Birgit
Published: April 2020

Replicability of experimental results and optimal use of experimental animals are everybody's concern. Current efforts towards increased replicability include guidelines and checklists as tools for experimenters, referees, editors and publishers. Guidelines are also provided for appropriate use of animals. To ensure the quality of experimental results, the number of animals must be adequate, that is, sufficiently large, for the purpose of the given experiment. To comply with current ethical recommendations, the use of animals should be reduced as much as possible. Therefore, determination of the number of animals for a given scientific objective includes contrasting considerations. Current guidelines for animal experimentation, notably from the National Institute of Health, mandate (with very few exceptions) inclusion of animals of both sexes in experimental designs statistically powered to address the difference between the two groups. Notably, absence of evidence for sex differences between the organ or system functions under study does not qualify as an exception. Mandatory, equal representation of both sexes raises several questions including ethical ones. Other guidelines, by public regulators and major publishers, do not seem to have a similar selective focus on sex differences. In summary, current concerns about replicability of scientific results are justified. Concomitantly, the knowledge of sex differences also between non‐reproductive, non‐endocrine organ functions is increasing. In principle, sex matters in any experimental context. However, an indiscriminate demand for inclusion of both sexes in all experimental protocols seems a waste of animals, money and time, violating traditional principles of animal experimentation, particularly that of reduction.
Novel implantable pressure and acceleration sensor for bladder monitoring
Authors: Soebadi Mohammad Ayodhia , Weydts Tristan , Brancato Luigi , Hakim Lukman , Puers Robert , De Ridder Dirk
Published: April 2020

Objectives

To test the hypothesis that an implantable sensing system containing accelerometers can detect small‐scale autonomous movements, also termed micromotions, which might be relevant to bladder physiology.

Methods

We developed a 6‐mm submucosal implant containing a pressure sensor (MS5637) and a triaxial accelerometer (BMA280). Sensor prototypes were tested by implantation in the bladders of Gottingen minipigs. Repeated awake voiding cystometry was carried out with air‐charged catheters in a standard urodynamic set‐up as comparators. We identified four phases of voiding similar to cystometry in other animal models based on submucosal pressure. Acceleration signals were separated by frequency characteristics to isolate linear acceleration from the baseline acceleration. The total linear acceleration was calculated by the root mean square of the three measurement axes. Acceleration activity during voiding was investigated to adjacent 1‐s windows and was compared with the registered pressure.

Results

We observed a total of 19 consecutive voids in five measurement sessions. A good correlation (r > 0.75) was observed between submucosal and catheter pressure in 14 of 19 premicturition traces. The peak‐to‐peak interval between maximum total linear acceleration was correlated with the interval between submucosal voiding pressure peaks (r = 0.760, P < 0.001). The total linear acceleration was higher during voiding compared with pre‐ and postmicturition periods (start of voiding/phase 1).

Conclusions

To the best of our knowledge, this is the first report of bladder wall acceleration, a novel metric that reflects bladder wall movement. Submucosal sensors containing accelerometers can measure bladder pressure and acceleration.
Ultrasound semiautomatic versus manual estimation of carotid intima-media thickness: reproducibility and cardiovascular risk stratification
Authors: Monti Caterina Beatrice , Alì Marco , Capra Davide , Wiedenmann Federico , Lastella Giulia , Secchi Francesco , Sardanelli Francesco
Published: April 2020

Aims: Carotid intima-media thickness (CIMT) is used increasingly as an imaging biomarker of cardiovascular risk (CVR). Our aim was to compare semiautomatic CIMT (sCIMT) versus manual CIMT (mCIMT) for reproducibility and prediction of CVR.Materials and methods: Two independent readers measured sCIMT and mCIMT on previously acquired images of the right common carotid artery of 200 consecutive patients. Measurements were performed twice, four weeks apart; sCIMT was reported along with an image quality index (IQI) provided by the software. CVR stratification was compared for thresholds established by mCIMT studies, adapted for sCIMT according to a regression model.Results: sCIMT (median 0.67 mm, interquartile range [IQR] 0.57‒0.76 mm) was significantly lower (p<0.001) than mCIMT (median 0.76 mm, IQR 0.63‒0.84 mm; ρ=0.832, p<0.001, slope 0.714, intercept 0.124). Overall, intra-reader reproducibility was 76% for sCIMT and 83% for mCIMT (p=0.002), inter-reader reproducibility 75% and 76%, respectively (p=0.316). In 129 cases with IQI≥0.65, reproducibility was significantly higher (p≤0.004) for sCIMT than for mCIMT (intra-reader 85% versus 83%, inter-reader 80% versus 77%,). The agreement between sCIMT and mCIMT for CVR stratification was fair both overall (κ=0.270) and for IQI≥0.65 (κ=0.345), crude concordance being 79% and 88%, respectively.Conclusions: Reproducibility of sCIMT was not higher than mCIMT overall but sCIMT was significantly more reproducible than mCIMT for high-IQI cases. sCIMT cannot be used for CVR stratification due to fair concordance with mCIMT, even for high IQI. More research is required to improve image quality and define sCIMT-based thresholds for stratification of CVR.
To What Extent Can Orbital Cellulitis Emergency Aspect Influence the Diagnosis of Maxillary Sinus Lymphoma?
Authors: Ajhoun Yousra , Aissa Ismail , Abdellaoui Taoufik , Roqai Yasmine Chaoui , Benchafai Ilias , Messaoudi Redouan , Zerrouk Rachid , Reda Karim , Oubaaz Abdelbarre
Published: April 2020

We present a case of a 46-year-old woman admitted to the emergency department for acute swelling and erythema of the right eyelid for 3 days. Ophthalmological examination was notable for 10/10, P2 best visual acuity, and inflammatory periorbital edema, without exophthalmia nor extraocular motility disturbance. Intraocular pressure was 14 mmHg and fundoscopic examination was not notable for any abnormality. Preseptal cellulitis diagnosis was made, and oral antibiotherapy was immediately started; after 72 hours, the patient did not improve and started complaining of pain on ocular movements. Brain and orbit MRI scan revealed right retroseptal cellulitis associated with homolateral pansinusitis. Intravenous antibiotherapy with oral corticosteroid was started simultaneously leading to full remission but with steroid dependency; 5 days after finishing prednisone, orbital cellulitis symptoms reappeared. The same treatment protocol was given but with corticosteroid tapering over weeks. Nevertheless, steroid dependency persisted. Except for the inflammatory syndrome, complete biological examinations did not disclose any abnormalities. The patient underwent maxillary sinus and fat orbital biopsy; however, histopathological examination was not contributory. Persistence of steroid dependency, chronic atypical rhinosinusitis, normal paraclinical investigations, and age of patient let us suspect lymphoma origin hidden by chronic corticosteroid. We carried out for the second time a maxillary sinus biopsy after stopping steroids, which disclosed primitive non-Hodgkin lymphoma of the maxillary sinus. The aim of this observation is firstly to evoke though it is exceptional the diagnosis of maxillary lymphoma in case of atypical orbital cellulitis and secondly to incite clinicians to be more vigilant in prescribing corticosteroid even if there is an emergency character of orbital cellulitis.
Pemodelan Hidrogeologi Cekungan Airtanah Samarinda-Bontang Segmen Penajam Dalam Upaya Konservasi Airtanah Berbasis Cekungan, Kabupaten Penajam Paser Utara, Provinsi Kalimantan Timur
Authors: Wicaksono Arizatur Reza , Putranto Thomas Triadi , Setyawan Reddy
Published: April 2020

Peraturan Menteri ESDM No. 7 Tahun 2017 tentang Cekungan Airtanah pasal 2 ayat 3 menyebutkan bahwa sistem pengelolaan airtanah didasarkan pada Cekungan Airtanah, namun di Indonesia masih banyak daerah-daerah yang masih menggunakan sistem pengelolaan berbasis sumur produksi yang dibatasi pada wilayah administrasi. Tujuan dari penelitian ini adalah untuk membuat model numerik pada Cekungan Airtanah (CAT) Samarinda segmen Penajam berdasarkan model konsep yang dibuat berdasarkan data-data di lapangan. Model nantinya akan digunakan sebagai acuan dalam menentukan rekomendasi terkait konservasi airtanah dari hasil simulasi model. Model numerik dibuat dengan memasukkan parameter-parameter hidrogeologi. Diskritisasi geometri dan iterasi berdasarkan metode beda hingga (finite differences method). Simulasi model yang dilakukan berdasarkan prediksi debit pemompaan hingga 20 tahun kedepan. Hasil kalibrasi model didapatkan nilai RMSE sebesar 0,75 m, ME sebesar 0,1 m, dan MAE sebesar 0,63 m, dengan nilai koefisien korelasi sebesar 0,944. Zona konservasi airtanah dibuat dengan mengkombinasikan persentase penurunan airtanah berdasarkan simulasi model pada skenario terburuk, daerah imbuhan dan lepasan, dan nilai daya hantar listrik di daerah penelitian. Didapatkan 4 (empat) prediksi zona konservasi airtanah, yaitu: zona perlindungan airtanah seluas 107,69 km2 (26,39%), zona aman seluas 229,35 km2 (56,21%), zona rawan seluas 60,35 km2 (14,79%), dan zona kritis seluas 10,64 km2 (2,61%).
Kajian Kekuatan Tanah dan Kestabilan Tubuh Tanggul pada Rencana Tanggul Wedok Lumpur Sidoarjo, Kecamatan Porong, Kabupaten Sidoarjo, Provinsi Jawa Timur
Authors: Trisnawati Devina , Suhesti Suhesti , Hidajat Wahju Krisna
Published: April 2020

Semburan lumpur Sidoarjo di Porong belum berhenti hingga saat ini, sehingga tahun 2019 Pusat Pengendalian Lumpur Sidoarjo (PPLS) berencana membangun tanggul baru di sisi timur tanggul utama setinggi 5 m yakni tanggul Wedok. Dalam pembangunan tanggul Wedok perlu diketahui kekuatan tanah dasar serta stabilitas tubuh tanggul. Untuk itu, dilakukan kajian mengenai kekuatan tanah penopang tanggul dan kestabilan tubuh tanggul mengunakan metode finite element dengan perangkat lunak Phase2 V8.0. Berdasarkan data pemetaan geologi lokasi penelitian tersusun oleh litologi endapan aluvial dan endapan lumpur Sidoarjo, sedangkan berdasarkan penyelidikan geologi teknik terbagi menjadi tiga satuan, yakni : satuan tanah urugan, satuan endapan lumpur Sidoarjo, dan satuan tanah asli. Tanah dasar pada lokasi rencana tanggul berupa lempung lunak yang tebal dengan kemampuan menahan beban tanggul setinggi 2,15 m. Pemasangan PVD (Prevabricated Vertical Drain) pada tanah dasar meningkatkan nilai faktor keamanan (FK) pada stabilitas tubuh tanggul.