bluuebunny/crossref_metadata_2025 huggingface dataset:
CubeSat Communications: Recent Advances and Future Challenges
Authors: Saeed Nasir , Elzanaty Ahmed , Almorad Heba , Dahrouj Hayssam , Al-Naffouri Tareq Y. , Alouini Mohamed-Slim
Published: April 2020

Given the increasing number of space-related applications, research in the emerging space industry is becoming more and more attractive. One compelling area of current space research is the design of miniaturized satellites, known as CubeSats, which are enticing because of their numerous applications and low design-and-deployment cost. The new paradigm of connected space through CubeSats makes possible a wide range of applications, such as Earth remote sensing, space exploration, and rural connectivity.CubeSats further provide a complementary connectivity solution to the pervasive Internet of Things (IoT) networks, leading to a globally connected cyber-physical system.This paper presents a holistic overview of various aspects of CubeSat missions and provides a thorough review of the topic from both academic and industrial perspectives.We further present recent advances in the area of CubeSat communications, with an emphasis on constellation-and-coverage issues, channel modeling, modulation and coding, and networking.Finally, we identify several future research directions for CubeSat communications, including Internet of space things, low-power long-range networks, and machine learning for CubeSat resource allocation.
Physical development and idiopathic nephrotic syndrome in children
Authors: Zhdanova O. A. , Nastausheva T. L. , Batischeva G. A. , Savchenko A. P. , Stenshinskaya E. V. , Zvyagina T. G.
Published: April 2020

INTRODUCTION.Study of physical development (PD) of children with idiopathic nephrotic syndrome (INS) includes mainly assessment of body height and weight during corticosteroid (CS) therapy; specifics of these criteria before and after the treatment are not sufficiently studied. THE AIM: to study PD of children with INS debut during CS therapy and upon its completion.

PATIENTS AND METHODS.A retrospective analysis of PD was performed in 89 patients with INS in Voronezh Regional Children's Clinical Hospital No.1 during 1998-2014 using method of Z-score of body height and weight in comparison with regional standards.

RESULTS.At the INS debut body height of 38.2% of the children and body weight of 41.2% accordingly were less than those of healthy children, p<0.001. Children with steroid-sensitive nephrotic syndrome (SSNS) had no difference in body height Z-score during CS therapy (0.17±1.06) and upon its completion (0.28±1.22), p=0.794. Body height was less in steroiddependent patients (SDNS) compared to SSNS patients. Z-score body weight values in children with SSNS were higher during maximum doses of CS (0.94±1.59) and returned to previous values after the therapy (-0.24±1.33), р=0,040. Patients with a frequent relapsing SSNS and SDNS had overweight and obesity remained after prednisone treatment (p=0.009).

CONCLUSION.Physical development of children with INS has differences associated with CS therapy. Since body height and weight of children with INS were different from the norms before CS therapy, this could be influenced by genetic factors, which to be studied further. The results can be used to prognose CS therapy influence on PD of patients and assess prognosis of INS.
Tinjauan Hukum Mahkamah Konstitusi dalam Perkara Pengujian Undang-Undang Nomor 17 Tahun 2012 tentang Perkoperasian
Authors: Salle Salle , Husen La Ode , Marsuni Lauddin
Published: April 2020

Penelitian ini bertujuan untuk memahami telaah hukum Mahkamah Konstitusi dalam Putusan MK No. 28/PUU-XI/2013 tentang Pengujian UU No. 17 tahun 2012 tentang Perkoperasian terhadap UUD NRI Tahun 1945. Manfaat dari penelitian tersebut ialah sebagai sosialisasi dan memberikan penyadaran hukum perihal aktifitas perkoperasian di Indonesia. Penelitian ini menggunakan pendekatan normatif yang berfokus pada mengkaji asas-asas peraturan perundang-undangan yang terkait dengan objek permasalahan. Teknis analisis yang digunakan dalam penelitian ini adalah metode analisis Hermeneutik dan Interpretasi. Hasil penelitian menunjukkan bahwa frasa “orang perseorangan” dalam pengertian koperasi berdasarkan Pasal 1 angka 1 UU No. 17 Tahun 2012 bertentangan dengan Pasal 33 ayat (1) UUD NRI Tahun 1945 karena rumusan pengertian tersebut mengarah ke individualisme. Lebih lanjut, meskipun permohonan para Pemohon hanya mengenai pasal tertentu, namun karena pasal tersebut mengandung materi muatan norma substansial, sehingga akan menyebabkan pasal-pasal yang lain dalam UU No. 17 Tahun 2012 tidak mempunyai kekuatan hukum mengikat. Oleh karena itu permohonan para Pemohon harus dinyatakan beralasan menurut hukum untuk seluruh materi muatan UU No. 17 Tahun 2012. Adapun demi kepastian hukum, UU No. 25 Tahun 1992 berlaku untuk sementara waktu sampai dengan terbentuknya Undang-Undang yang baru.
Flow Characteristics through Saturated Soil: Experimental Study
Authors: Basack Sudip , Goswami Ghritartha , Deka Prandeep , Barman Mrinal Kr , Chishi Kivipu
Published: April 2020

The flow characteristics through saturated soil is complex. For low heads, the flow is essentially linear, where Darcy’s law is applicable. For higher head, the flow is nonlinear and mathematically identified as Forchheimer’s flow. The critical flow velocity for this transition and the relevant Reynold’s number depends upon several factors, including soil and fluid characteristics. In this paper, an experimental investigation has been carried out by means of falling head permeameter with locally available soft soil sample. A critical analysis and interpretations of the test results to identify the linear and nonlinear flow characteristics have been performed and important conclusions are drawn therefrom.
Taxonomy of Guatemalan water beetles in the genus Hydrochus (Coleoptera: Hydrochidae)
Authors: Perkins Philip D.
Published: April 2020

The taxonomy of Guatemalan water beetles in the genus Hydrochus Leach, 1817 (Coleoptera: Hydrophiloidea: Hydrochidae) is presented. The known fauna now consists of six species, four of which are described as new species. The new species are diagnosed, and high-resolution images of the habitus and male genitalia of each species are given. The following new species are described: H. directus sp. nov., H. pertuberculatus sp. nov., H. sinuatus sp. nov., and H. steineri sp. nov. The historical types of H. debilis Sharp, 1882 and H. obscurus Sharp, 1882 are redescribed, their lectotypes are designated, and high-resolution images of the habitus, male genitalia and labels of the lectotypes are given.
Aplikasi Pencarian Rute Terpendek Tempat Wisata Di Kota Pekanbaru Menggunakan Floyd Warshall
Authors: Fatma Yulia , Gunawan Fadly , Mukhtar Harun
Published: April 2020

Dinas Kebudayaan dan Pariwisata Kota Pekanbaru (2017) menyatakan Pekanbaru merupakan kota yang berpotensi untuk dikembangkan menjadi daerah tujuan wisata. Wisatawan yang datang berkunjung membutuhkan informasi rute terpendek tempat wisata, masih terbatasnya sistem informasi tentang rute tempat wisata di Kota Pekanbaru dan kurangnya penerapan teknologi informasi dibidang pariwisata untuk meningkatkan promosi dan potensi - potensi tempat wisata di Kota Pekanbaru, dapat disolusikan dengan menerapkan algoritma seperti Floyd Warshall. Algoritma tersebut akan menampilkan jalur terpendek menuju lokasi tempat wisata terdekat dengan pengguna. Hal tersebut didukung oleh GPS (Global Positioning System) untuk mengetahui keberadaan pengguna. Berdasarkan hasil penelitian ini dapat membantu wisatawan serta masyarakat memberikan informasi tentang lokasi tempat wisata dan dapat meningkatkan potensi pariwisata khususnya Kota Pekanbaru.
Sistem Rekomendasi Jurusan Kuliah Bagi Calon Mahasiswa Baru Menggunakan Algoritma C4.5
Authors: Ulfa Annisa , Winarso Doni , Arribe Edo
Published: April 2020

Pada tingkatan perguruan tinggi, seseorang belajar berdasarkan suatu bidang keahlian tertentu, sehingga output dari sebuah perguruan tinggi diharapakan mampu menghasilkan sumber daya manusia yang berkualitas sesuai dengan bidang keahliannya. Salah dalam memilih jurusan kuliah biasanya disebabkan karena kurangnya pengetahuan mengenai jurusan yang ada. Sehingga pemilihan jurusan harus dilakukan sedini mungkin dengan penuh pertimbangan. Salah satu cara dengan menggunakan sistem rekomendasi pemilihan jurusan bagi calon mahasiswa baru berdasarkan nilai sekolah, nilai tes dan jurusan sekolah menggunakan algoritma C4.5. Tujuan penelitian ini adalah menghasilkan suatu sisem rekomendasi jurusan kuliah bagi calon mahasiswa baru menggunakan algoritma C4.5. Luaran penelitian ini adalah sebuah sistem rekomendasi bagi calon mahasiswa baru yang masih kebingungan dalam menentukan jurusan kuliah. Hasil evaluasi algoritma C4.5 yang dilakukan dengan menggunakan confussion matrix diapatkan tingkat akurasi sebesar 12%. Hal ini menunjukkan bahwa sistem akan gagal melakukan rekomendasi yang sesuai karena data dan variabel yang digunakan kurang mendukung namun apabila data maupun variabel yang digunakan mendukung maka sistem akan bisa melakukan rekomendasi dengan benar.

 

Keywords: C4.5, Decision Tree, Rekomendasi.
Analisis Kualitas Layana E-Commerce C2C-Classifieds Terhadap Kepuasan Pengguna Dengan Menggunakan Metode Webqual 4.0
Authors: Siswaka Fikri
Published: April 2020

Perkembangan internet yang terus naik di indonesia membuat para pembisnis di indonesia juga mengalami perkembangan , adapaun bisnis yang lagi berkembang pesat saat ini yaitu electronic commerce (E-Commerce). E-Commerce merupakan suatu kontak transaksi perdagangan antara penjual dan pembeli dengan menggunakan media internet.  Di indonesia sendiri sudah banyak E-Commerce yang bermunculan hingga saat ini, salah satu nya yaitu Olx.co.id. Tujuan dari penelitian ini yaitu untuk mengetahui seberapa besar pengaruh kualitas website Olx.co.id terhadap kepuasan pengguna yang berada di Pekanbaru dengan menggunakan metode webqual dengan alat bantu SPSS 24.0. Penelitian ini adalah tipe penelitian kuantitatif dengan menggunakan metode survey. Teknik pengambilan sampel pada penelitian ini menggunakan teknik non probability yakni Teknik sampling insidental.  Rumus penentuan jumlah sampel yang digunakan yaitu rumus Lemeshow. Jadi dalam penelitian ini di dapatlah jumlah sampel sebanyak 130 responden.
Analisa Dan Implementasi Security Mail Server
Authors: Mukhtar Harun , Daniel Adi Putra Sitorus  , Yulia Fatma
Published: April 2020

Mail server is one of the most widely used server functions in the company. This discusses e-mail itself which can reduce mailing costs, is more efficient than manual communication and can be used as attachments that are useful as a supplement and additional documents related to the contents of e-mail. Zimbra is a mail server application that provides complete features and also makes it easy to install mail server management, also mail server security issues are a factor that must be considered by the system administrator. The security design for e-mail servers addresses the importance of being able to prevent spam e-mail attacks that can fill e-mail servers and make mail server performance faster. Because a good mail server security can optimize the performance of the mail server itself. In this final project, the work and implementation of the zimbra mail server security will be carried out specifically for handling email spam. The zimbra email server will analyze its security against spam email attacks, so that it can function as an email server on the company.
Penerapan Metode Logika Fuzzy dalam mengolah pilihan pada Game Visual Novel Informasi Penerimaan Mahasiswa Baru Fakultas Ilmu Komputer Universitas Muhammadiyah Riau sebagai Sarana Evaluasi Mandiri
Authors: Rizki Yoze , Mukhtar Harun , Andikarama M Djodi
Published: April 2020

Perkembangan global erat kaitannya dengan kemajuan teknologi informasi dan dengan berkembangnya informasi memungkinkan masyarakat dapat mengakses informasi secara lebih mudah contohnya melalui gadget smartphone android.  Pencarian informasi penerimaan mahasiswa baru oleh Universitas Muhammadiyah Riau dapat ditemukan melalui website, brosur, kontak telfon, dan social media. Seiring dengan bertambahnya kuota yang disediakan untuk mahasiswa baru, maka informasi penerimaan sangat diperlukan untuk menunjang proses penyebaran informasi akan tetapi sampai saat ini Universitas Muhammadiyah Riau sendiri belum memiliki sarana informasi berbasis aplikasi android untuk menunjang sosialisasi informasi kepada calon mahasiswa baru. Melihat permasalahan yang ada penelitian ini bertujuan untuk membangun sarana alternatif untuk membantu sosialisasi informasi kepada calon mahasiswa baru. Maka dari itu penulis akan membangun sebuah media untuk membantu calon mahasiswa baru agar bisa mendaptkan informasi Penerimaan Mahasiswa Baru (PMB) melalui media game khsususnya untuk Fasilkom UMRI. Game yang akan digunakan yaitu bertipe Visual Novel. Visual Novel sendiri terdiri dari gambar, suara, dan cerita yang nantinya dapat membantu dalam proses penyediaan informasi. Tujuan lain dari penelitian ini adalah untuk merancang alur cerita game dengan Finite State Machine serta mengimplementasi metode  Logika Fuzzy untuk mengolah pilihan pada Mini Game Evaluasi dan nantinya game ini akan dibangun menggunakan Ren’Py dengan bahasa pemrograman Phyton. Dengan dibuatnya penelitian ini diharapkan dapat membantu calon mahasiswa baru Fasilkom untuk mendapatkan informasi PMB secara menarik, simpel, dan interaktif. Hasil pengujian fungsional game yang telah dihitung persentasenya pada responden menunjukkan bahwa 100% menyatakan ya setuju dan menyatakan 0% tidak setuju, dapat disimpulkan dari hasil semua responden bahwa game yang dibuat berfungsi sebagaimana mestinya. Hasil pengujian usabilitas game hasil pengujian antarmuka diperoleh kesimpulan bahwa hampir seluruh koresponden puas dengan game yang dibuat. Data hasil pengujian menunjukkan bahwa responden sangat setuju 83%, setuju 15%, netral 2%, tidak setuju 0%, dan menyatakan sangat tidak setuju 0%.
Reviews on the development of the theory of logistic support of the Air Force of the Armed Forces of Ukraine
Authors: Tyurin Vitalii, , Mirnenko Volodymyr, , Salii Anatolii, , Openʹko Pavlo, , Avramenko Oleksandr,
Published: April 2020

The existing separate arms theory and the theory of the Logistics of the Armed Forces as components of military science lose their functional purpose as partial theories in modern conditions of operations (combat actions).The article proposes a unified theory of logistics of the Air Forces of the Armed Forces of Ukraine, based on the existing theories of armament and the logistics of the Armed Forces, based on the general laws and established consistent patterns, trends, principles, forms and methods of the use of the logistics of the Air Forces of the Armed Forces of Ukraine. The objective function of the logistics system of the Air Forces of the Armed Forces of Ukraine is formulated, which is to achieve compliance of the capabilities of this system with the predicted volume of tasks of the logistics. In order to implement this compliance it is necessary to ensure the convergence of requirements and capabilities at all levels of logistics management.The purpose of the article is to determine the main provisions of the new unified theory of logistics of the Air Forces of the Armed Forces of Ukraine taking into account modern forms and methods of conducting operations (combat actions), requirements concerning the formation of a unified logistics system of the Armed Forces of Ukraine and logistic support, created management bodies, forces and assets of military units (formations) logistics of the Air Forces of the Armed Forces of Ukraine.The assessment of the functioning of the Air Forces logistics system of the Armed Forces of Ukraine is proposed on the basis of the stated views on the logistics theory of the Air Forces of the Armed Forces of Ukraine by assessing the set of real capabilities of each subsystem that is the part of its structure and system as a whole. At the same time, the assessment of the quality of the logistic support of the military units (formations) of the Air Forces of the Armed Forces of Ukraine should be related to the level of implementation of the potential capabilities of the logistics system when solving problems of each subsystem at the stages of combat training, unblocking and operational deployment, preparation and conduct of operations (combat actions), restoration of combat capability of troops (forces).
Methodical approach to evaluation of economic efficiency of repairing the weapons and military equipment
Authors: Dachkovskyi Vоlodymyr , Sampir Oleksandr , Horbachova Yana
Published: April 2020

The analysis of using the military units and formation during conduct of hostilities on the territory of Donetsk and Luhansk region allows to claim that the one of the main aspect that impact on the success in the execution of tasks are existence of workable samples of weapons and military equipment. Thus, the one of the main source of entering of workable samples of weapons and military equipment in military units (military formations) during conduct of hostilities is returning them from stationary and movable damage-control military formations (units) after the completion of their restoration. Accordingly, during the restoration of damaged samples of weapons and military equipment consumes replacement parts, assemblages, aggregates, components equipment etc. that need to be purchased from manufacturers, which has resulted to financial and economic costs.

Therefore, in this work are proposed the methodical approach to evaluation of economic efficiency of repairing samples of weapons and military equipment. This approach includes two ways: financial and economic costs on the repairing of weapons and military equipment in the stationary conditionals and in the moving repair and reconstruction military formations (units). The main costs will be focused on the principal salary of repairmen, the basic materials, replacement parts, overhead of mechanical department, common overhead, new product development costs, and special costs during the repairing of weapons and military equipment in stationary conditions. And the basic spending will be focused on the purchasing of new details, assemblages, aggregates, depreciation cost of equipment, the cost of maintaining the personnel of repair specialists, average cost of operational set during the repairing of weapons and military equipment in the moving repair and reconstruction military formations (units).
Development of methodology of alternative rationale for financial ensuring of bridges building
Authors: Britchenko Igor , Bezpartochnyi Maksym , Levchenko Yaroslava
Published: April 2020

The purpose of the article is to develop a methodology for alternative substantiation of financial support for bridge construction. To achieve the purpose, the following general scientific and special methods and techniques of research were used: “golden ratio” rule; systematization and generalization; generalization of the results of the analysis and the logical generation of conclusions. Initially, the article analyzed the state of bridge structures in Europe and Ukraine. Based on the analysis, a disappointing situation has been identified, namely that a significant ratio of bridges number require major overhaul or are in critical condition. During the research, the following tasks were solved, namely: physical wear of the bridge as a failure was considered; the feasibility of investing in reconstruction or new bridge construction was determined.

For the purpose of rational use of financial resources, which are limited in the age of economic challenges, and on the basis of the rule of “golden proportion”, the maximum percentage of investment in reconstruction is determined. If the limit is exceeded, it is decided to build a new bridge. This result allows making an economically sound decision and evaluating the effectiveness of the invested resources. It is proved that if the wear index of the overhaul bridge construction is higher than the wear rate of the new bridge construction by λ2 / λ1, and the amount of funds for overhaul reaches 70% of the funds needed to build a new one, it is better to build a new bridge.
The Ukraine’s labor market regulation in the aspect of the European integration processes
Authors: Volkova Nataliia
Published: April 2020

The research purpose is to assess the regulation state of the Ukrainian labor market in the aspect of the European integration processes. As a whole, Ukrainian labor law has been adapted to European labor standards by the beginning of 2020, but the separate provisions in the list require more detail and regulation in order to implement EU standards, in particular in the new Labor Code. The implementation of international standards in this field should include studying the practice of their implementation by individual states, as well as taking into account the social and economic opportunities of Ukraine at the current development stage. The labor market regulation in the context of the European integration should be aimed at increasing the economic activity of the population by stimulating its unshadowing, creating decent working conditions and parity of remuneration in the budgetary and non-budgetary spheres and relatively real subsistence level, conducting analytical and scientific studies of the national economy, forecasting subsequent changes in quality and the division of labor force.
The Extended Kardashev Scale
Authors: Gray Robert H.
Published: April 2020

A scale is described for classifying civilizations according to the amount of power they produce, using the whole numbers 0 through 4 to denote 106, 1016, 1026, 1036, and 1046 W corresponding to the approximate power available at physical scales biological, planetary, stellar, Galactic, and observable universe, extending a Roman numeral scheme introduced by Kardashev and updating it with suggestions from Sagan and Lemarchand including using Arabic numbers to permit decimal subdivisions. Terrestrial civilization circa 2015 would be classified as Type 0.72 on this extended and updated scale. Similar scales can be used to classify information stored, population, and mass of constructions.
The Importance of Star Formation Intensity in Lyα Escape from Green Pea Galaxies and Lyman Break Galaxy Analogs
Authors: Kim Keunho , Malhotra Sangeeta , Rhoads James E. , Butler Nathaniel R. , Yang Huan
Published: April 2020

We have studied ultraviolet images of 40 Green Pea galaxies and 15 local Lyman Break Galaxy Analogs to understand the relation between Lyα photon escape and central UV photometric properties. We measured star-formation intensity (SFI; star formation rate per unit area) from the central 250 pc region (

) using Cosmic Origins Spectrograph near-ultraviolet images from the Hubble Space Telescope. The measured

of our sample Green Peas ranges from 2.3–46 M
☉ yr−1 kpc−2, with a geometric mean of 15 M
☉ yr−1 kpc−2 and a standard deviation of 0.266 dex, forming a relatively narrow distribution. The Lyman Break Galaxy Analogs show a similarly narrow distribution of

(0.271 dex), though with a larger mean of 28 M
☉ yr−1 kpc−2. We show that while the Lyα equivalent width (EW(Lyα)) and the Lyα escape fraction (

) are not significantly correlated with the central SFI (

), both are positively correlated with the ratio of surface brightness to galaxy stellar mass (S
250 pc/M
star), with correlation coefficients (p-values) of 0.702 (1 × 10−8) and 0.529 (5 × 10−4) with EW(Lyα) and

, respectively. These correlations suggest a scenario where intense central star formation can drive a galactic wind in galaxies with relatively shallow gravitational potential wells, thus clearing channels for the escape of Lyα photons.
Scattering-induced Intensity Reduction: Large Mass Content with Small Grains in the Inner Region of the TW Hya disk
Authors: Ueda Takahiro , Kataoka Akimasa , Tsukagoshi Takashi
Published: April 2020

Dust continuum observation is one of the best methods to constrain the properties of protoplanetary disks. Recent theoretical studies have suggested that dust scattering at the millimeter wavelength potentially reduces the observed intensity, which results in an underestimate in the dust mass. We investigate whether dust scattering indeed reduces the observed continuum intensity by comparing the ALMA archival data of the TW Hya disk at Bands 3, 4, 6, 7, and 9 to models obtained by radiative transfer simulations. We find that the model with scattering by 300 μm-sized grains well reproduces the observed spectral energy distribution of the central part of the TW Hya disk while the model without scattering is also consistent within the errors of the absolute fluxes. To explain the intensity at Band 3, the dust surface density needs to be ∼10 g cm−2 at 10 au in the model with scattering, which is 26 times more massive than previously predicted. The model without scattering needs a 2.3 times higher dust mass than the model with scattering because it needs a lower temperature. At Band 7, scattering reduces the intensity by ∼35%, which makes the disk look optically thin even though it is optically thick. Our study suggests the TW Hya disk is still capable of forming cores of giant planets at locations analogous to where the current solar system planets exist.
Don’t throw the baby out with the bathwater – ban of glyphosate use depends on context
Authors: Pergl Jan , Härtel Handrij , Pyšek Petr , Stejskal Robert
Published: April 2020

not for this short letter
La beauté est-elle universelle ?
Authors: Marchal Marion
Published: April 2020

Nous avons renoncé à la croyance en un critère objectif du beau ; nous savons que nous sommes maintenant installés dans le relativisme esthétique. Comment en sommes-nous arrivés à ne plus pouvoir justifier nos appréciations par un critère unique ? Faut-il regretter cette nouvelle situation ? Ne faut-il pas plutôt reconnaître qu’en elle se libèrent non seulement la diversité des goûts mais surtout celle des productions artistiques ?
« La beauté est partout, il suffit de regarder »
Authors: Chenu-Godefroy Sandra , Michelin Jean
Published: April 2020

Photographe d’action spécialisée dans les domaines des forces armées et de sécurité, auteur d’un ouvrage remarqué sur l’opération Sentinelle, Sandra Chenu-Godefroy revient ici sur son travail et sur ce qu’est, pour elle, une belle photo.
Même en opération ! République centrafricaine, 2013
Authors: Briganti Arnaud
Published: April 2020

« Il faut connaître la pourriture, car seul qui connaît la nuit peut apprécier la lumière », écrivait Ernst Jünger. L’opération Sangaris, menée en Centrafrique par l’armée française, témoigne de ce contraste entre la noirceur de la violence et les signes encore perceptibles d’une beauté fragile.
Quand Proust révèle la beauté de la stratégie militaire
Authors: Fraisse Luc
Published: April 2020

Marcel Proust (1871-1922), s’il n’a pas combattu durant la Grande Guerre, a réuni par une abondante lecture de la presse une documentation très précise sur les opérations, se passionnant pour la stratégie. Dans Le Côté de Guermantes I (1920), le héros d’ À la recherche du temps perdu séjourne dans la ville fictive de garnison Doncières, où Saint-Loup et ses amis développent une théorie sur la beauté des opérations stratégiques, qui exercera une grande influence sur l’avenir littéraire du personnage, destiné à devenir écrivain.
Use of Direct In-Person Observation in the Care of Hospitalized Older Adults with Cognitive Impairment: A Systematic Review
Authors: Gilmore-Bykovskyi Andrea L. , Fuhr Haley , Jin Yuanyuan , Benson Clark
Published: April 2020

Hospitalized older adults with cognitive impairment (CI) due to dementia and/or delirium may require individualized care strategies such as direct observation to mitigate safety concerns and manage behavioral symptoms. Despite common use of direct observation as a strategy, little is known about its practice and outcomes. A systematic review was conducted to identify, appraise, and synthesize literature on direct observation among hospitalized older adults with CI. The search yielded 16 eligible studies, with four describing current practices, nine reporting quality improvement efforts to broaden direct observation, and three focusing on direct observation reduction. Strength of evidence across studies was weak, limited in scope, and lacking clarity in definitions, indications for use and discontinuation, and documentation. Overall, findings highlight differing views on direct observation and the need for future, rigorous evaluation of approaches (e.g., nursing autonomy in initiating and discontinuing observation) to better align direct observation with patient needs. [
Journal of Gerontological Nursing, 46
(5), 23–30.]
Surgical Management of Glenohumeral Osteoarthritis With Glenoid Erosion and Static Posterior Subluxation (Walch B2): Techniques, Outcomes, and Survivorship Rates
Authors: Shanmugaraj Ajaykumar , Sarraj Mohamed , Coughlin Ryan P. , Guerrero Evan M. , Ekhtiari Seper , Ayeni Olufemi R. , Garrigues Grant E.
Published: April 2020

The purpose of this study was to systematically assess the surgical techniques and outcomes related to the management of Walch B2 glenoids. PubMed, Medline, and Embase were searched from inception to July 2018. Overall, 24 studies (787 B2 glenoids) were identified. Revision-free survivorship was highest for reverse total shoulder arthroplasty (98.6%) and anatomic total shoulder arthroplasty with asymmetric reaming and a non-augmented glenoid implant (95.6%). Walch B2 glenoids are most commonly managed by asymmetric reaming in the context of anatomic total shoulder arthroplasty, and by the ream-and-run technique in hemiarthroplasty. The optimal treatment strategy remains elusive due to a lack of high-quality, comparative studies with long-term surveillance. [
Orthopedics
. 2020;43(4):e191–e201.]
Robust table recognition for printed document images
Authors: Liang Qiaokang ,   College of Electrical and Information Engineering, Hunan University, Changsha 410082, China, Peng Jianzhong , Li Zhengwei , Xie Daqi , Sun Wei , Wang Yaonan , Zhang Dan ,   National Engineering Laboratory for Robot Vision Perception and Control, Hunan University, Changsha 410082, China,   Department of Mechanical Engineering, University of Alberta, Edmonton, AB T6G 2R3, Canada,   Department of Mechanical Engineering, York University, Toronto, ON M3J 1P3, Canada
Published: April 2020

The recognition and analysis of tables on printed document images is a popular research field of the pattern recognition and image processing. Existing table recognition methods usually require high degree of regularity, and the robustness still needs significant improvement. This paper focuses on a robust table recognition system that mainly consists of three parts: Image preprocessing, cell location based on contour mutual exclusion, and recognition of printed Chinese characters based on deep learning network. A table recognition app has been developed based on these proposed algorithms, which can transform the captured images to editable text in real time. The effectiveness of the table recognition app has been verified by testing a dataset of 105 images. The corresponding test results show that it could well identify high-quality tables, and the recognition rate of low-quality tables with distortion and blur reaches 81%, which is considerably higher than those of the existing methods. The work in this paper could give insights into the application of the table recognition and analysis algorithms.
Terminologija v času globalizacije / Terminology at the Time of Globalization
Authors: Humar Marjeta
Published: April 2020

The collection includes 36 contributions presented at the scientific conference Terminology at the Time of Globalization in Ljubljana. Participating were scientists from Russia, Ukraine, Croatia, Bulgaria, Slovenia, and Poland. The aim of the scientific conference was to get acquainted with terminographical and terminological problematics of other Slavic nations and the various ways of solving it. The papers provided a presentation of terminological and terminographical work in the individual countries as well as the solving of terminological problems arising especially from globalization and the integration into the European Union.
Razvijanje medkulturne zmožnosti pri učiteljih in učencih
Authors: De Toni Moreno , Kožar Rosulnik Klara , Vižintin Marijanca Ajša
Published: April 2020

Razvijanje medkulturne zmožnosti pri učiteljih in učencih Priročnik prinaša 15 delavnic, ki obravnavajo kulturno, etnično in jezikovno raznolikost slovenske in italijanske družbe. Osredotoča se na razvijanje medkulturnega dialoga med večinskimi, priseljenskimi in manjšinskimi skupnosti ter na razvijanje medkulturne zmožnosti vseh prebivalcev. Vsaka delavnica je sestavljena iz dveh delov. Prvi del je namenjen učiteljem, zato so v njem izpostavljeni cilji, teoretična izhodišča, napotki za reševanje in literatura za nadaljnje delo. Drugi del delavnice je delovni list na dveh straneh, namenjen kopiranju in neposredni uporabi v razredu. Delavnice so izvedljive pri različnih šolskih predmetih (npr. slovenščina, italijanščina, zgodovina, geografija, državljanska in domovinska vzgoja ter etika, knjižnična informacijska znanja, sociologija, psihologija, antropologija itd.). Priporočamo medpredmetno povezovanje. Ciljna skupina za reševanje delavnic so predvsem osnovnošolci v zadnjem triletju osnovne šole in srednješolci v Sloveniji oz. učenci nižjih in višjih srednjih šol v Italiji.
Sozaložnik: Slovenski raziskovalni inštitut (SLORI) / Instituto sloveno di ricerche (SLORI)
Study of Fine-Grained Cementitious Composites in Solidification Phase Using Acoustic Testing Technique
Authors: Hoduláková Michaela , Topolář Libor
Published: April 2020

The paper deals with experimental analysis, which is focused on the use of acoustic measurement during the solidification process. As a material for monitoring was chosen fine-grained cementitious composites in the laboratory environment. For this purpose, a measuring device working on the principle of mechanical waves passing through the material was designed, assembled and verified. The experiment was conducted on cement pastes prepared from CEM I 42.5 R Portland cement with two different water coefficients (w/c = 0.40 and w/c = 0.33). The differences in the wave propagation in cement pastes were investigated. Simultaneously with this experiment, the monitoring and the saving records of the internal temperature was conducted. The results show the time of „critical changes" in the internal structure of the material can be determined. These changes are probably related to the quality of the particle’s bonds in the inner material structure, which is reflected in the propagation of mechanical waves. Overall, it is shown these experiments could be used to expand the understanding of the various processes occurring during early hydration of cement, and the application of these results to field situations (in the future) could lead to the other development of, non-destructive (and nonintrusive) monitoring techniques.
Accuracy of Three Bracket Transfer Media for Indirect Bonding Techniques (IDB) Fabricated by Three-Dimensional Printing
Authors: Rattanasumawong Sopit , Santiwong Peerapong , Raocharernporn Somchart , Tantidhnazet Syrina
Published: April 2020

To evaluate and compare the accuracy of bracket placement in three bracket transfer media techniques for indirect bonding. A total of 300 brackets were bonded on dental casts by indirect bonding techniques using three different bracket transfer media. The bracket positions were simulated by digital software. In the first two methods, digital models were designed with two types of markers, one with fully mocked up bracket (container method), and another with only marked bracket margins (marker method), then the models were printed out by a three-dimensional (3D) printer using pink resin and bracket transfer trays were vacuum formed on these models with polyvinylsiloxane. In the third methods, digital software was used to design full arch transfer trays, and printed by a stereolithographic 3D printer using elastic resin. With the transfer trays, the brackets were bonded onto dental stone casts, and a 3D model scanner was used to capture the final bracket positions on the casts. Superimpositions between the planned and actual bracket positions were done. Nonparametric statistical analyses were used to determine whether there were significant differences between planned and actual bracket positions and between the three methods. All significant differences in bracket position were less than 0.31 mm and most (95%) were less than 0.08 mm. Significant differences between all three methods were found. Indirect bonding methods using digital software combined with 3D printing show good accuracy with clinically insignificant positional discrepancies of less than 0.5mm.
Assessment of Corrosion Effects on Railway Bridges in the Middle Area of Vietnam Using Multibody Dynamics Approach
Authors: Pham My , Dang Cong Thuat , Nguyen Chinh Van
Published: April 2020

A railway bridge over several decades will be degraded due to localized corrosion. As a result, the load capacity of the bridge decreases, especially under the live load caused by trains. This paper examines the residual load capacity of a bridge deteriorated by localized corrosion by using the multibody dynamics approach. This approach allows an accurate description of the interaction between trains and bridges. At the same time, it allows the formation of corrosion marks on each structural member of the bridge in a numerical model precisely based on actual measured data. In order to describe accurately the remaining load of the bridge under the moving load of the train, a dynamic testing and finite element modeling of a steel bridge are conducted and compared. At the same time, the results are also compared with the simulation results of the bridge model before being corroded. In addition, the paper also tests the reliability of the numerical model for assessments of similar bridges without actual measurement results that are costly and time-consuming.
Water Vapor Transmission Properties of Men’s Quick-Dry Sportswear
Authors: Fan Yan Ngo , Wang Wen Yi , Kan Chi Wai , Promlawan Kamol , Changmuong Wasana , Mongkholrattanasit Rattanaphol
Published: April 2020

This study evaluated the quick dry properties of summer men’s sportswear T-shirts of different brands (Nike, Adidas, Laishilong and Columbia) by studying the water vapor transmission behavior. The results indicate that Laishilong was the best sample in terms of water vapor transmission rate, whereas Columbia was the poorest. Moreover, samples of Nike, Adidas, Laishilong and Columbia, had similar water vapor transmission rate. This implies that they had comparatively similar performance in water vapor permeability.
Abrasion of Reactive Powder Concrete under Direct Water Impact
Authors: Hussein Munther L. Abdul , Abid Sallal R. , Ali Sajjad H.
Published: April 2020

An experimental program was directed in this study to evaluate the abrasion resistance of reactive powder concrete (RPC) under direct normal impact of water jet. Abrasion and compressive strength specimens were cast from six RPC mixtures using different single and hybrid distributions of 6 mm-length and 15 mm-length micros-steel fibers and 18 mm-length polypropylene fiber. Fixed mix proportions were used for the six RPC mixtures and with fixed total volumetric fiber content of 2.5%. In addition to the RPC mixtures, a normal concrete mixture was prepared for comparison purposes. All specimens were cured in the same conditions and tested at an age of 28 days. The test results showed that abrasion weight losses increase with time at rates that are independent of fiber type and fiber distribution. The results also showed that all RPC mixtures exhibited significantly lower abrasion losses than normal concrete. The lowest percentage abrasion weight losses were recorded for the mixture with pure 15 mm micro-steel, where after 12 testing hours, it was 0.41% of the total weight before testing. On the other hand, the mixture with pure 6 mm micro-steel fiber exhibited the highest percentage abrasion weight loss (0.98%) among the six RPC mixtures. Another conclusion is that the inclusion of polypropylene fiber to compose hybrid fiber distribution with micro-steel fiber led mostly to lower abrasion losses.
Experimental and Statistical Study of In-Plane Tensile and Adhesion Strength of Plasma-Sprayed Coatings
Authors: Kuleshov Nikolay , Dolgov Nikolay , Smirnov Igor , Vinogradov Leonid , Shestakov Vladimir
Published: April 2020

. The influence of technological conditions on the strength characteristics of plasma-sprayed coatings of aluminum oxide powder with a fraction of 40–63 [μm], modified with a titanium oxide Nano powder with a particle size of 40–50 [nm], was studied. As independent variables (technological factors), which are the most significant and have the greatest influence on the strength characteristics of the coatings, there was chosen lens current, arc current, and the position of the solenoid relative to the nozzle. The adhesion strength and tensile strength of the coatings were adopted as optimization criteria. Mathematical models of the adhesion strength and the tensile strength of plasma coatings of aluminum oxide was obtained. As a result of multi-criteria optimization using the obtained mathematical models, the optimal combination of the levels of controlled factors was determined.
Human Herpesvirus-6 Reactivation, Mitochondrial Fragmentation, and the Coordination of Antiviral and Metabolic Phenotypes in Myalgic Encephalomyelitis/Chronic Fatigue Syndrome
Authors: Schreiner Philipp , Harrer Thomas , Scheibenbogen Carmen , Lamer Stephanie , Schlosser Andreas , Naviaux Robert K , Prusty Bhupesh K
Published: April 2020

Myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS) is a multifactorial disorder with many possible triggers. Human herpesvirus (HHV)–6 and HHV-7 are two infectious triggers for which evidence has been growing. To understand possible causative role of HHV-6 in ME/CFS, metabolic and antiviral phenotypes of U2-OS cells were studied with and without chromosomally integrated HHV-6 and with or without virus reactivation using the histone deacetylase inhibitor trichostatin-A. Proteomic analysis was conducted by pulsed stable isotope labeling by amino acids in cell culture analysis. Antiviral properties that were induced by HHV-6 transactivation were studied in virus-naive A549 cells challenged by infection with influenza-A (H1N1) or HSV-1. Mitochondria were fragmented and 1-carbon metabolism, dUTPase, and thymidylate synthase were strongly induced by HHV-6 reactivation, whereas superoxide dismutase 2 and proteins required for mitochondrial oxidation of fatty acid, amino acid, and glucose metabolism, including pyruvate dehydrogenase, were strongly inhibited. Adoptive transfer of U2-OS cell supernatants after reactivation of HHV-6A led to an antiviral state in A549 cells that prevented superinfection with influenza-A and HSV-1. Adoptive transfer of serum from 10 patients with ME/CFS produced a similar fragmentation of mitochondria and the associated antiviral state in the A549 cell assay. In conclusion, HHV-6 reactivation in ME/CFS patients activates a multisystem, proinflammatory, cell danger response that protects against certain RNA and DNA virus infections but comes at the cost of mitochondrial fragmentation and severely compromised energy metabolism.
Regional variation of alanine aminotransferase serum levels in the People's Republic of China
Authors: Li Peng , Ge Miao , Jing Jing , Wei Dezhi
Published: April 2020

The regional variation of the blood concentration of alanine aminotransferase (ALT), a sensitive predictor of liver damage, was studied in the People’s Republic of China with reference to its potential association with environmental variables and geographic location. The research results presented are based on 121,977 blood samples from healthy adults in 93 cities in the country using correlation analysis, ridge regression estimation and trend surface analysis that were applied to explore if there was any tendency of spatial variation. A regression formula using a simulation equation under the condition of known local geographic factors was used. Statistical significance was set at P<0.05. A positive correlation between ALT concentration altitude and sunshine hours and a negative correlation between ALT concentration and temperature, humidity and precipitation were found. With respect to geographical location, there was a negative correlation between ALT concentration and longitude. Higher ALT values were found in western China compared to eastern regions, dividing the country into three different regions with respect to serum ALT levels.
The use of geographic information system as a tool for schistosomiasis surveillance in the province of Davao del Norte, the Philippines
Authors: Belizario Vicente Y. , Delos Trinos John Paul Caesar R. , Silawan Berne , De Veyra Chiqui M. , Hornido Agapito , Amoguis Hansel , Basalo Dominic , Dema-ala Cherry , Mantilla Irenn , Layan Rosele
Published: April 2020

Schistosomiasis (SCH) in The Philippines is caused by Schistosoma japonicum and remains endemic in 28 provinces in 12 regions. Effective SCH control requires describing areas at risk where control efforts may be focused. This study aims at demonstrating the utility of geographical information system (GIS) as a tool for SCH surveillance in the province of Davao del Norte. Qualitative and quantitative data on SCH determinants, obtained from local government offices, partner agencies and institutions, were standardised, formatted and incorporated into a GIS map. Atrisk areas are described in terms of determinants and (variables), which included geography and climate (topography, temperature and flood-prone areas), agriculture (irrigation and land use), poverty (percentage of households with income below the poverty threshold), sanitation level (percentage of households with sanitary toilets), intermediate and reservoir hosts (presence of snail colonies and reservoir hosts) as well as prevalence and treatment coverage. Endemic villages (barangays) were generally found to be located in flood-prone areas in the lowlands near major rivers. New Corella has the highest poverty index among the SCH-endemic areas studied as well as the highest number of confirmed snail colonies. Among known endemic localities in Davao del Norte, Tagum City was found to be the only city meeting the poverty index target of <16.6%. Clustering of SCH cases were reported in six barangays ranging from 0.48% (8 out of 1,655) in Braulio Dujali to 2% (25 out of 1,405) in Asuncion. This study demonstrates the utility of GIS in predicting and assessing SCH risk, which allows prioritisation and allocation of control resources and delivery of services in areas at the highest risk for SCH.
CutL: an alternative to Kulldorff’s scan statistics for cluster detection with a specified cut-off level
Authors: Więckowska Barbara , Marcinkowska Justyna
Published: April 2020

When searching for epidemiological clusters, an important tool can be to carry out one’s own research with the incidence rate from the literature as the reference level. Values exceeding this level may indicate the presence of a cluster in that location. This paper presents a method of searching for clusters that have significantly higher incidence rates than those specified by the investigator. The proposed method uses the classic binomial exact test for one proportion and an algorithm that joins areas with potential clusters while reducing the number of multiple comparisons needed. The sensitivity and specificity are preserved by this new method, while avoiding the Monte Carlo approach and still delivering results comparable to the commonly used Kulldorff’s scan statistics and other similar methods of localising clusters. A strong contributing factor afforded by the statistical software that makes this possible is that it allows analysis and presentation of the results cartographically.