bluuebunny/crossref_metadata_2025 huggingface dataset:
Whole Genome Sequencing of Methicillin-Resistant Staphylococcus epidermidis Clinical Isolates Reveals Variable Composite SCCmec ACME among Different STs in a Tertiary Care Hospital in Oman
Authors: Al-Jabri Zaaima , AL-Shabibi Zahra , AL-Bimani Atika , AL-Hinai Amal , AL-Shabibi Ammar , Rizvi Meher
Published: August 2021

Staphylococcus epidermidis has been recently recognized as an emerging nosocomial pathogen. There are concerns over the increasing virulence potential of this commensal due to the capabilities of transferring mobile genetic elements to Staphylococcus aureus through staphylococcal chromosomal cassette (SCCmec) and the closely related arginine catabolic mobile element (ACME) and the copper and mercury resistance island (COMER). The potential pathogenicity of S. epidermidis, particularly from blood stream infections, has been poorly investigated. In this study, 24 S. epidermidis isolated from blood stream infections from Oman were investigated using whole genome sequence analysis. Core genome phylogenetic trees revealed one third of the isolates belong to the multidrug resistance ST-2. Genomic analysis unraveled a common occurrence of SCCmec type IV and ACME element predominantly type I arranged in a composite island. The genetic composition of ACME was highly variable among isolates of same or different STs. The COMER-like island was absent in all of our isolates. Reduced copper susceptibility was observed among isolates of ST-2 and ACME type I, followed by ACME type V. In conclusion, in this work, we identify a prevalent occurrence of highly variable ACME elements in different hospital STs of S. epidermidis in Oman, thus strongly suggesting the hypothesis that ACME types evolved from closely related STs.
NetCom: A Network-Based Tool for Predicting Metabolic Activities of Microbial Communities Based on Interpretation of Metagenomics Data
Authors: Tal Ofir , Bartuv Rotem , Vetcos Maria , Medina Shlomit , Jiang Jiandong , Freilich Shiri
Published: August 2021

The study of microbial activity can be viewed as a triangle with three sides: environment (dominant resources in a specific habitat), community (species dictating a repertoire of metabolic conversions) and function (production and/or utilization of resources and compounds). Advances in metagenomics enable a high-resolution description of complex microbial communities in their natural environments and support a systematic study of environment-community-function associations. NetCom is a web-tool for predicting metabolic activities of microbial communities based on network-based interpretation of assembled and annotated metagenomics data. The algorithm takes as an input, lists of differentially abundant enzymatic reactions and generates the following outputs: (i) pathway associations of differently abundant enzymes; (ii) prediction of environmental resources that are unique to each treatment, and their pathway associations; (iii) prediction of compounds that are produced by the microbial community, and pathway association of compounds that are treatment-specific; (iv) network visualization of enzymes, environmental resources and produced compounds, that are treatment specific (2 and 3D). The tool is demonstrated on metagenomic data from rhizosphere and bulk soil samples. By predicting root-specific activities, we illustrate the relevance of our framework for forecasting the impact of soil amendments on the corresponding microbial communities. NetCom is available online.
Antibiofouling Activity of Graphene Materials and Graphene-Based Antimicrobial Coatings
Authors: Staneva Anna D. , Dimitrov Dimitar K. , Gospodinova Dilyana N. , Vladkova Todorka G.
Published: August 2021

Microbial adhesion and biofilm formation is a common, nondesirable phenomenon at any living or nonliving material surface in contact with microbial species. Despite the enormous efforts made so far, the protection of material surfaces against microbial adhesion and biofilm formation remains a significant challenge. Deposition of antimicrobial coatings is one approach to mitigate the problem. Examples of such are those based on heparin, cationic polymers, antimicrobial peptides, drug-delivering systems, and other coatings, each one with its advantages and shortcomings. The increasing microbial resistance to the conventional antimicrobial treatments leads to an increasing necessity for new antimicrobial agents, among which is a variety of carbon nanomaterials. The current review paper presents the last 5 years’ progress in the development of graphene antimicrobial materials and graphene-based antimicrobial coatings that are among the most studied. Brief information about the significance of the biofouling, as well as the general mode of development and composition of microbial biofilms, are included. Preparation, antibacterial activity, and bactericidal mechanisms of new graphene materials, deposition techniques, characterization, and parameters influencing the biological activity of graphene-based coatings are focused upon. It is expected that this review will raise some ideas for perfecting the composition, structure, antimicrobial activity, and deposition techniques of graphene materials and coatings in order to provide better antimicrobial protection of medical devices.
Antimicrobial Susceptibility, Minimum Inhibitory Concentrations, and Clinical Profiles of Stenotrophomonas maltophilia Endophthalmitis
Authors: Ho Ming-Chih , Hsiao Ching-Hsi , Sun Ming-Hui , Hwang Yih-Shiou , Lai Chi-Chun , Wu Wei-Chi , Chen Kuan-Jen
Published: August 2021

Stenotrophomonas maltophilia has been reported in various ocular infections, including keratitis, conjunctivitis, preseptal cellulitis, and endophthalmitis, all of which may lead to vision loss. However, the S. maltophilia strain is resistant to a wide variety of antibiotics, including penicillins, third-generation cephalosporins, aminoglycosides, and imipenem. In this study, we retrospectively reviewed the clinical characteristics, antibiotic susceptibility, antimicrobial minimum inhibitory concentrations (MICs), and visual outcomes for S. maltophilia endophthalmitis. The data of 9 patients with positive S. maltophilia cultures in a tertiary referral center from 2010 to 2019 were reviewed. Cataract surgery (n  =  8, 89%) was the most common etiology, followed by intravitreal injection (n  =  1, 11%). S. maltophilia’s susceptibility to levofloxacin and moxifloxacin was observed in 6 cases (67%). Seven isolates were resistant to sulfamethoxazole-trimethoprim (78%). The MIC90 for S. maltophilia was 256, 256, 256, 8, 12, 12, 12, and 8 μg/mL for amikacin, cefuroxime, ceftazidime, tigecycline, sulfamethoxazole-trimethoprim, levofloxacin, galtifloxacin, and moxifloxacin, respectively. Final visual acuity was 20/200 or better in 5 patients (56%). Fluoroquinolones and tigecycline exhibited low antibiotic MIC90. Therefore, the results suggest that fluoroquinolones can be used as first-line antibiotics for S. maltophilia endophthalmitis.
A Pattern Approach to Comprehensible and Pleasant Human–Robot Interaction
Authors: Pollmann Kathrin , Ziegler Daniel
Published: August 2021

HRI designers are faced with the task of creating robots that are easy and pleasant to use for the users. The growing body of research in human–robot interaction (HRI) is still mainly focused on technical aspects of the interaction. It lacks defined guidelines that describe how behavioral expressions for social robots need to be designed to promote high usability and positive user experience. To achieve this goal, we propose to apply the concept of design patterns to HRI. We present a design process that provides step-by-step guidance and methods for HRI designers to generate high quality behavioral patterns for social robots that can be used for different robots and use cases. To document the resulting patterns, we developed a documentation format that provides a clear, standardized structure to note down all relevant aspects of a pattern so that others can understand its design recommendations and apply them to their own robot and use cases. In the present paper, we demonstrate our pattern approach based on an example and describe how we arrived at a pattern language of 40 behavioral patterns that found the basis for future social robot design and related research activities.
One-Step Microwave-Assisted Synthesis of PtNiCo/rGO Electrocatalysts with High Electrochemical Performance for Direct Methanol Fuel Cells
Authors: Shih Kun-Yauh , Wei Jia-Jun , Tsai Ming-Chi
Published: August 2021

Platinum (Pt) is widely used as an activator in direct methanol fuel cells (DMFCs). However, the development of Pt catalyst is hindered due to its high cost and CO poisoning. A multi-metallic catalyst is a promising catalyst for fuel cells. We develop a simple and rapid method to synthesize PtNiCo/rGO nanocomposites (NCs). The PtNiCo/rGO NCs catalyst was obtained by microwave-assisted synthesis of graphene oxide (GO) with Pt, Ni, and Co precursors in ethylene glycol (EG) solution after heating for 20 min. The Pt-Ni-Co nanoparticles showed a narrow particle size distribution and were uniformly dispersed on the reduced graphene oxide without agglomeration. Compared with PtNiCo catalyst, PtNiCo/rGO NCs have superior electrocatalytic properties, including a large electrochemical active surface area (ECSA), the high catalytic activity of methanol, excellent anti-toxic properties, and high electrochemical stability. The ECSA can be up to 87.41 m2/g at a scan rate of 50 mV/s. They also have the lowest oxidation potential of CO. These excellent electrochemical performances are attributed to the uniform dispersion of PtNiCo nanoparticles, good conductivity, stability, and large specific surface area of the rGO carrier. The synthesized PtNiCo/rGO nanoparticles have an average size of 17.03 ± 1.93 nm. We also investigated the effect of catalyst material size on electrocatalytic performance, and the results indicate that PtNiCo/rGO NC catalysts can replace anode catalyst materials in fuel cell applications in the future.
Effects of Cannabidiol Supplementation on Skeletal Muscle Regeneration after Intensive Resistance Training
Authors: Isenmann Eduard , Veit Sebastian , Starke Lynn , Flenker Ulrich , Diel Patrick
Published: August 2021

Cannabidiol supplements (CBD) are increasingly consumed by athletes to improve regeneration. However, the evidence for the pro-regenerative effects of CBD in sports is quite limited. Therefore, our aim was to investigate the effects of a single CBD supplementation in a six-arm placebo-controlled crossover study after resistance training on performance and muscle damage. Before and after the resistance training, one-repetition maximum in the back squat (1RM BS), countermovement jump (CMJ), and blood serum concentrations of creatine kinase (CK) and myoglobin (Myo) were measured in healthy, well-trained participants. 16 out of 21 participants completed the study and were included in the analysis. In 1RM BS, a significant decrease was observed after 24 h (p < 0.01) but not after 48 and 72 h. A significant group difference was detected after 72 h (p < 0.05; ES = 0.371). In CMJ, no significant changes were observed. The CK and Myo concentrations increased significantly after 24 h (CK: p < 0.001; Myo: p < 0.01), 48 h (CK: p < 0.001; Myo: p < 0.01) and 72 h (CK: p < 0.001; Myo: p < 0.001). After 72 h, significant group differences were observed for both muscle damage biomarkers (CK: p < 0.05 ES = 0.24; Myo: p < 0.05; ES = 0.21). The results show small but significant effects on muscle damage and recovery of squat performance after 72 h. However, more data are required for clearer statements concerning potential pro-regenerative effects of CBD supplementation after resistance training.
Spatiotemporal Evolutions of Similariton Pulses in Multimode Fibers with Raman Amplification
Authors: Graini Leila , Ortaç Bülend
Published: August 2021

This paper aims to pave the way towards the demonstration of spatiotemporal similariton pulses’ evolution in passive multimode fibers with Raman amplification. We numerically present this issue in graded-index and step-index multimode fibers and provide a first look at the complex spatiotemporal dynamics of similariton pulses. The results showed that the similariton pulses could be generated in both multimode fibers. The temporal and spectral evolution of the pulses can be characterized as parabolic shapes with linear chirp and kW peak power. By compressing these, high-energy femtoseconds pulses can be obtained, starting initial picosecond pulses. A spatial beam profile could be preserved in both multimode fibers with the most energy coupled to the fundamental mode. Specifically, the similariton pulses’ generation with Raman amplification in a graded-index multimode fiber improves the spatial beam self-cleaning process under the different initial modes’ excitation. The observation of a new beam self-cleaning process is another attractor feature of propagation in graded-index multimode fibers.
Design and Optimization of Surface Plasmon Resonance Spectroscopy for Optical Constant Characterization and Potential Sensing Application: Theoretical and Experimental Approaches
Authors: Daniyal Wan Mohd Ebtisyam Mustaqim Mohd , Fen Yap Wing , Abdullah Jaafar , Sadrolhosseini Amir Reza , Mahdi Mohd Adzir
Published: August 2021

The best surface plasmon resonance (SPR) signal can be generated based on several factors that include the excitation wavelength, the type of metal used, and the thickness of the metal layer. In this study, the aforementioned factors have been investigated to obtain the best SPR signal. The excitation wavelength of 633 nm and gold metal with thickness of 50 nm were required to generate the SPR signal before the SPR was used for optical constant characterization by fitting of experimental results to the theoretical data. The employed strategy has good agreement with the theoretical value where the real part refractive index, n value, of the gold thin film was 0.1245 while the value for the imaginary part, k, was 3.6812 with 47.7 nm thickness. Besides that, the optical characterization of nanocrystalline cellulose (NCC)-based thin film has also been demonstrated. The n and k values found for this thin film were 1.4240 and 0.2520, respectively, with optimal thickness of 9.5 nm. Interestingly when the NCC-based thin film was exposed to copper ion solution with n value of 1.3333 and k value of 0.0060 to 0.0070 with various concentrations (0.01–10 ppm), a clear change of the refractive index value was observed. This result suggests that the NCC-based thin film has high potential for copper ion sensing using SPR with a sensitivity of 8.0052°/RIU.
Failure Investigation of Layered LFT SB1plus Package after Ballistic Tests for Level IIA
Authors: Pîrvu Cătălin , Deleanu Lorena
Published: August 2021

The main objective of this study focuses on designing and testing body protection systems using advanced materials based on aramid fibers, for high impact speeds of up to 420 ± 10 m/s. Ballistic applications of aramid fiber-based composites mostly include soft body armors. The investigation of the failure mechanisms identifies issues of protective fabrics, major challenges and technological problems for efficient development of these systems. The authors present an investigation on the failure processes and destructive stages of a ballistic package made of successive layers of LFT SB1plus, a trade name for a multiaxial fabric by Twaron Laminated Fabric Technology (LFT), taking into account the particular test conditions from NIJ Standard-0101.06 Ballistic Resistance of Body Armor. The main parameter of interest was the backface signature (BFS), but also details of projectile arrest and SEM investigation could offer arguments for using this material for individual protection. For the reported tests, the maximum and minimum values for BFS were 12 mm and 24 mm, the mean value being 18.66 mm and the standard deviation being 3.8 mm.
Responsive Dual-Targeting Exosome as a Drug Carrier for Combination Cancer Immunotherapy
Authors: Fan Yuanyuan , Zhou Yingshun , Lu Meng , Si Haibin , Li Lu , Tang Bo
Published: August 2021

Recently, combination immunotherapy, which incorporates the activation of the immune system and inhibition of immune escape, has been proved to be a new powerful strategy for more efficient tumor suppression compared to monotherapy. However, the major challenge is how to integrate multiple immune drugs together and efficiently convey these drugs to tumor sites. Although a variety of nanomaterials have been exploited as carriers for targeting tumor issues and the delivery of multiple drugs, their potential toxicity, immune rejection, and stability are still controversial for clinical application. Here, we proposed endogenic exosomes as drug carriers to deliver two antibodies acting as tumor-targeting molecules and block checkpoint inhibitors with specific response to the tumor microenvironment and costimulatory molecules for further improvement of therapeutic effect. The versatile exosomes exhibit excellent biocompatibility and provide a combination immunotherapy platform with synergistic advantages of activation of immune response and inhibition of immune escape.
Virali and Artistic Background Change
Authors: A Poongodi
Published: August 2021

Humans carried the ideas that came to their minds to the people through the arts. Artists are those who have the power to express the arts to others through their culture. The role of such artists in the Sangam era was of great importance. Ninga had a place in the kingdom and in the battlefields. In Sangam songs, the words for the artist were Panar, Porunar, Kuiluvar, Vayiriyar, Viraliyar, Kuttar, Kannular and Patiniyar. Although all of these are generic, there is a subtle difference between the names in terms of musical instruments' playing, dancing, and singing skills. Of these, Viraliyar is a feminist and singer. Virali is a performer who leads a nomadic life. Virali, who excelled in receiving gifts, exemplified the success of kings through their arts. The literature shows that they received valuables gifts like mountain, country, gold, jewelers when they sang songs in praise of the kings. In perumpanatrupadaiviralis beauty was lauded from head to toe. The detailed description is present inkesathipatha. From these descriptions we can get to understand their significance. Such a beautiful and elegantviralis transferred intoparaththiyarover a period of time.
Business Activity and Market: The Search for a New “Práxis” Through Sustainability
Authors: Demarchi Clovis , Pedrini Tainá Fernanda
Published: August 2021

The State and the Business Activity have a relationship of Interdependence. That holds the punitive and regulatory power, this, the economic. The achievement of the global Sustainability goal implies harmony between the actors for joint policies. In view of this, it aims to demonstrate the participation of the business sector to achieve this objective, through socio-environmental management - with the organization or business financially viable, fair to the Company and endowed with environmental responsibility. To do so, the relationship between the human being and the environment is first analyzed in order to identify the consequences of human performance over time. Subsequently, the application of Sustainability as a concept to the application of management policies for the business sector is studied, considering the awareness developed about the existence of a Risk Society, as well as, the possibility of benefits arising from this management model. The method used was inductive.
STRUCTURE AND PROPERTIES OF POWDER MATERIALS OBTAINED BY ELECTRODISPERSION OF NICHROME METAL WASTE
Authors: Ageeva E. V. , Altukhov A. Y. , Shcherbakov A. V.
Published: August 2021

The results of experimental studies aimed at studying the structure and properties of electroerosive nichrome powders obtained in distilled water are presented. The high efficiency of the application of the electrodispersion technology, which provides, at low energy costs, the production of new nichrome powder materials suitable for industrial use, is shown.
INVESTIGATION OF THE POROSITY OF THE VJ ALLOY SINTERED FROM ELECTROEROSIVE POWDERS OBTAINED IN WATER
Authors: Ageev E. V. , Horakova N. M. , Novikov E. P. , Korolev M. S.
Published: August 2021

The results of experimental studies of the porosity of the psevdosplav sintered from electroerosive powders obtained in distilled water are presented. It is shown that the use of the spark plasma sintering method for the production of products from the powder obtained by electrodispersion of the pseudoalloy VNJ 95 will ensure the porosity of the sintered samples of the order of 0.43% with an average micro-porosity of the samples of 349 HV
ASSESSMENT OF THE EFFECT OF CARBON ON PERFORMANCE PROPERTIES AND THE MICROSTRUCTURE OF ROLL STEEL
Authors: Feoktistov N. A. , Chernov V. P. , Savinov A. S. , Gorlenko D. A. , Mikhalkina I. V.
Published: August 2021

This paper concentrates on studying the effect of carbon on performance properties of 150KhNM roll steel grade. The introduction contains a brief literature review on the effect of the roll alloy chemistry on performance and mechanical properties of mill rolls. Besides, it demonstrates the relevance of the presented studies. The paper describes the effect of chemical elements, such as manganese, niobium, vanadium, nickel on the microstructure and mechanical properties of mill rolls. It also classifies alloying elements by their effect on polymorphic transformation temperatures and shows carbide-forming elements increasing such property. We also considered the effect of the carbide phase on hypereutectoid steel. The paper contains carbide compounds that may be formed in steels, and their classification. It describes the mechanism of the effect of the carbide phase on performance properties of steel castings. The second part of the paper presents a research procedure and briefly describes materials used for the research and laboratory and analytical equipment. The third part of the paper presents the research results. It describes the effect of carbon in a broad range on service durability of hypereutectoid roll steel in conditions of wear at room and elevated (400 ºС) temperatures. Besides, we determined the effect of carbon on the roll alloy microstructure and analyzed relations between the microstructure and performance properties of hypereutectoid roll steel. The conclusion of the paper summarizes the results and contains the references used for an analytical review.
THE INFLUENCE OF EXTERNAL FORCES ON THE CHARACTERISTICS OF HARDENING AND THE CHARACTER OF CONVECTIVE FLOWS DURING THE CURING OF INGOTS
Authors: Puzikov A. Ya. , Gamanuk S. B. , Zyuban N. A. , Rutskiy D. V. , Ivchenko K. A.
Published: August 2021

The paper describes the influence of external influences on the features and nature of convective flows during the solidification of ingots. It is shown that topping up the profitable part of the ingot with hot portions of the melt changes the nature of the convective motion of the melt in the body of the model ingot. Laminar movement is observed before refilling, after turbulent. The change in the nature of the movement of the liquid in the body of the ingot contributes to an increase in the speed of the front of the solid phase, as evidenced by the results of calculating the rate of solidification throughout the solidification process of the model ingot. The analysis of the structural zones showed an increase in the zone of columnar crystals from 58.6% to 72.3% and the zone of the deposition cone, from 6.5% to 9.1% in refilled ingots compared to the classic ingot. There is also a decrease in the zone of differently oriented crystals from 26.8 to 13.7% and the crustal zone from 5.9% to 2.8%. The length of the axial zone increased from 36 to 54%, with a decrease in its diameter from 6.5 to 5.1%.
On the distribution of Vagrans egista (Cramer, 1780) in West Bengal, India
Authors: Roy Subhajit , Singhamahapatra Aniruddha , Dutta Suvankar
Published: August 2021

Vagrans egista (Cramer, 1780) is reported for the first time from southern part of West Bengal, India. The Raygar forest of Bankura district in the plateau region is the second locality for the reported species in West Bengal, which extends the distribution range (aerial distance: 525 km) of the species from its known locality, Buxa Tiger Reserve of Alipurduar district in the state. This paper also reports occurrence of Rapala pheretima and Gerosis bhagava in Bankura district for the first time. Importance of an invasive plant, Mikania micrantha has also been discussed as a nectaring plant of butterflies.
Nuevo género y especie de Anobiinae (Coleoptera: Ptinidae) de Chile central
Authors: Lüer Alfredo , Honour Richard
Published: August 2021

Se describe un nuevo género y especie de Anobiinae (Coleoptera: Ptinidae), Austronobium flavus gen. n. y sp. n., a partir de ejemplares recolectados y obtenidos de plantas hospedantes en Chile central. Se entregan caracteres diagnósticos de los taxones, incluido imágenes del adulto y de las estructuras genitales de ambos sexos.
Strategi Digital Marketing dan Komunikasi Bisnis untuk Enterpreneur Pemula di Indonesia
Authors: Kurniawati Lia
Published: August 2021

Latar belakang penelitian ini melihat perkembangan UMKM yang memasuki masa pandemi peralihan dari pemasaran offline ke dunia digital, tidak semua UMKM siap dengan kompetensi yang serba baru menurut mereka, bahkan hal ini berdampak secara psikologis dengan imbasan pada penurunan perekonomian secara signifikan baik skala micro maupun skala nasional. Pada penelitian terdahulu beberapa mengupas tentang bagaimana upaya mengoptimasi penggunaan medisa sosial untuk meningkatkan pemasaran namun setelah program pelatihan tersebut perubahan yang dirasakan para pengusaha di tingkat UMKM tidak mengalami perubahan yang berarti dikarenakan pelatihan-pelatihan serupa hanya memberikan kelas-kelas tentatif tanpa bimbingan intensif yang terencana dan terjadwal. Peneliti yakin jika pengembangan kompetensi UMKM dibina secara optimal, terencana dan terjadwal melalui kelas-kelas dan metode planner yang syarat teknis akan membawa pengaruh pada optimalisasi penggunaan teknologi komunikasi bisnis dan digital serta peningkatan pemasaran UMKM. Adapun metode penelitian yang digunakan dengan menggunakan metode kualitatif deskriptif dimana para pelaku UMKM/IKM mendapat pemaparan informasi melalui kelas berbayar sangat murah dan paparan informasi rutin terjadwal, dan teknik penulisan iklan yang praktis dengan upaya tersebut  diharapkan kompetensi UMKM akan meningkat. Dan penelitian ini bersinergi dengan program Kementerian Koperasi dan UMKM dimana salah satu program unggulannya yakni program unggulan keempat, pengembangan kapasitas manajemen dan usaha Koperasi dan UKM. Diwujudkan antara lain melalui pemberian konsultasi, pelatihan dan pendampingan oleh para ahli dalm hal ini peneliti sebagai akademisi mampu menjembatani program tersebut guna turut berkontribusi untuk kemajuan UMKM Indonesia.
A Hybrid Prognostic Approach Based on Deep Learning for the Degradation Prediction of Machinery
Authors: KARA Ahmet
Published: August 2021

Remaining useful life (RUL) prediction is of great significance for prognostic and health management (PHM) as it can achieve more reliable and effective maintenance strategies. With the advances in the field of deep learning, data-driven methods have provided promising prognostic prediction results. Hence, this research presents a data-driven prognostic approach based on deep learning models for predicting the RUL of mechanical systems effectively. Multiple separable convolution layers, a bidirectional Long Short-Term Memory (LSTM) layer, and fully-connected layers (FCL) are included in the proposed network, named the SC-BLSTM, to accomplish more accurate prognostic prediction from the raw degradation data acquired by different sensors. The proposed SC-BLSTM approach aims to learn complex and nonlinear features from the input data and capture temporal dependencies from the learned features. The presented approach in this research is tested and verified on the degradation data of turbofan engines (C-MAPSS dataset) from NASA. The result demonstrated that the SC-BLSTM is able to achieve more effective RUL prediction compared with some existing prognostic models.
The documentation system of anti-Bolshevist government’s military departments during the Russian Civil War
Authors: Париева Л.Р.
Published: August 2021

Статья посвящена вопросам документирования деятельности органов военного управления антибольшевистских правительств и системе военной документации, сложившейся в период Гражданской войны в России. На основании изучения нормативных документов дореволюционной России, регламентировавших ведение письмоводства и делопроизводства в царской армии, и архивных документов, находящихся на хранении в Российском государственном военном архиве, автором сделаны выводы о попытке сохранения имперских традиций в этой области, точном соблюдении установленных правил составления и оформления служебных документов, относящихся к системе военной документации в Белой армии. Система военной документации в статье разделена на группы: организационные документы, распорядительные, служебная переписка, документы оперативного характера. Особое внимание уделено видам документов, их функциям, стилистике написания текстов документов. Приведены примеры различных видов документов, относящихся к системе военной документации и использовавшихся в период Гражданской войны в России.

This article is devoted to the issues of documenting the operations of military authorities of anti-Bolshevik governments and the system of military documentation that developed during the Russian Civil War. The author studied pre-revolutionary Russian documents that regulated clerical work in the Tsar's army, and archival documents stored in the Russian State Military Archive. Based on those documents, the author draws conclusions about attempts to preserve Imperial traditions in that area, as well as strict adherence to existing rules for drafting and formalising official documentation related to the White Army. The article divides the military documentation system into several groups: organisational documents, executive documents, official correspondence, operational documents. The author focuses on the types of documents, their functions and the language used. The article provides examples of different types of documents related to the military documentation system and used during the Russian Civil War.
Media Audio Visual sebagai Upaya Meningkatkan Hasil Belajar Fikih di MI Roudhotul Huda Sekaran Gunungpati
Authors: Ghoni Aris Abdul , Rouyani Shofi , Putri Linda Indiyarti
Published: August 2021

Media audio visual adalah salah satu media pembelajaran yang populer digunakan di sekolah. Salah satu kelebihan menggunakan media pembelajaran audio visual antara lain meminimalisir kegiatan belajar mengajar yang didominasi secara verbal dan semua peserta didik diharapkan mendapat pengalaman yang sama dalam pembelajaran. Rumusan masalah dalam penelitian ini adalah: 1) Bagaimana pelaksanaan pembelajaran Fiqih di MI Roudhotul Huda Sekaran Gunungpati? 2) Bagaimana prestasi belajar siswa pada pelajaran Fiqih siswa kelas II MI Roudhotul Huda Sekaran Gunungpati? 3) Bagaimana efektivitas media pembelajaran audio visual pada pelajaran Fiqih siswa kelas II MI Roudhotul Huda Sekaran Gunungpati? Metode penelitian ini adalah Penelitian Tindakan Kelas menggunakan desain penelitian Kemmis dan Mc.Taggart. Dengan nilai KKM 70, hasil penelitian membuktikan bahwa hasil belajar peserta didik pada pra siklus hanya sebesar 38% yang mengalami ketuntasan. Pada siklus I meningkat menjadi 97% yang mengalami ketuntasan. Kemudian dilanjutkan pada siklus II dan III dengan perolehan angka ketuntasan belajar sebesar 100%.
Pengembangan Instrumen Minat dalam Pembelajaran Bahasa Inggris pada Peserta Didik Kelas 3 dan 4 SD/MI
Authors: Af'idah Irma Nur , Yuanto Teguh Arik
Published: August 2021

Penelitian ini bertujuan untuk mengukur minat peserta didik dalam pelajaran Bahasa Inggris kelas III dan IV SD Kanisius Mangunan Kalirto Berbah Sleman Yogyakarta. Metode yang digunakan dalam penelitian ini adalah metode research and development (R&D). Penentuan sampel dalam penelitian ini menggunakan teknik random sampling dengan analisis yang digunakan adalah analisis faktor. Teknik pengumpulan data yang digunakan adalah kuisioner/angket. Alat ukur yang digunakan yaitu skala Likert, uji validitas dan uji reliabilitas data.Pengujian instrumen minat Bahasa Inggris diujikan kepada peserta didik kelas III dan IV SD Kanisius Mangunan Kalirto Berbah Sleman Yogyakarta.Instrumen ini terdiri dari 5 indikator dan 26 butir soal. Hasil analisis pada indikator diperoleh KMO (Kaiser-Meyer-Olkin) sebesar 0,676 danBarlett’s Tes sebesar 0,000. Koefisisen MSA (Measure of Sampling adequacy) pada korelasi anti image, menunjukkan bahwa semua variabel lebih besar dari 0,5 sehingga data dapat dianalisis lebih lanjut. Jumlah varian pada analisis faktor membentuk 5 faktor dan varians kumulatif total sebesar 55,97%. Dari 26 item tes, hanya 10 item instrumen penilaian sikap ilmiah yang memenuhi lima faktor tersebut. Analisis reliabilitas dengan jumlah item 10 diperoleh nilai koefisien Cronbach Alpha sebesar 0,546. Hasil tersebut menunjukkan bahwa pembelajaran Bahasa Inggris kelas 3 dan 4 di Sekolah Dasar Kanisius Berbah Sleman sudah dapat dilakukan dengan baik, karena hampir seluruh peserta didik menyukai pembelajaran Bahasa Inggris tersebut walaupun masih terdapat beberapa peserta didik yang sama sekali tidak memiliki minat dan semangat belajar terhadap mata pelajaran ini.
INVASIVE PESTS DETECTED IN SOME GREENHOUSES OF EREVAN CITY
Authors: Dilbaryan K. P. , Ghazaryan L. A. , Stepanyan I. E. , Khachatryan A. G.
Published: August 2021

The following invasive species: Toxoptera aurantii Boyer de Fonscolombe, Toxoptera citricida Kirkaldy, Macrosiphoniteella sanborni Latr, Toxoptera , Macrosiphoniella Del Guercio), Trialeurodes vaporariorum Westwood (Aleyrodidae West., Trialeurodes Cockerell), Tetranychus viennensis Zacher (Tetranychidae Donn, Tetranychus Dufour), and Cenopalpus mespili Lufour. et Mitrofanov (Tenuipalpidae Sayed, Cenopalpus Pritchard & Baker) were identified during studying of the pest fauna of three greenhouse complexes ("Grig Garden", "Green Paradise" and "Avan") in Yerevan which are specialized on the cultivation of ornamental plants. Insecticide and acaricide resistant lines of Tetranychus viennensis and Macrosiphum rosae were found in two greenhouse complexes.
FIRST DATA ON PARASITES OF NEOGOBIUS ILJINI (PERCIFORMES, GOBIIDAE) OF THE MIDDLE VOLGA
Authors: Mineeva O. V. , Semenov D. Yu.
Published: August 2021

The results of a study of the fauna of multicellular parasites of the Caspian bighead goby Neogobius iljini (Vasiljeva et Vasiljev, 1996) in three reaches of the Kuibyshev reservoir (Middle Volga) are presented. Twelve species and undefined forms of parasites were found, including a specific to the fam. Gobiidae metacercaria Holostephanus cobitidis . The most diverse fauna of macroparasites is observed in the lower reaches of the reservoir (Priplotinny reach). The dominant species in the parasite fauna of the Caspian goby of the studied reservoir is the alien fluke Nicolla skrjabini , whose natural range is limited to the rivers of the Azov and Black seas basin.
A Discriminative Neighborhood-Based Collaborative Learning for Remote Sensing Scene Classification
Authors: Muhammad Usman , Hoque Md Ziaul , Wang Weiqiang , Oussalah Mourad
Published: August 2021

The bag-of-words (BoW) model is one of the most popular representation methods for image classification. However, the lack of spatial information, change of illumination, and inter-class similarity among scene categories impair its performance in the remote-sensing domain. To alleviate these issues, this paper proposes to explore the spatial dependencies between different image regions and introduce a neighborhood-based collaborative learning (NBCL) for remote-sensing scene classification. Particularly, our proposed method employs multilevel features learning based on small, medium, and large neighborhood regions to enhance the discriminative power of image representation. To achieve this, image patches are selected through a fixed-size sliding window where each image is represented by four independent image region sequences. Apart from multilevel learning, we explicitly impose Gaussian pyramids to magnify the visual information of the scene images and optimize their position and scale parameters locally. Motivated by this, a local descriptor is exploited to extract multilevel and multiscale features that we represent in terms of codewords histogram by performing k-means clustering. Finally, a simple fusion strategy is proposed to balance the contribution of these features, and the fused features are incorporated into a Bidirectional Long Short-Term Memory (BiLSTM) network for constructing the final representation for classification. Experimental results on NWPU-RESISC45, AID, UC-Merced, and WHU-RS datasets demonstrate that the proposed approach not only surpasses the conventional bag-of-words approaches but also yields significantly higher classification performance than the existing state-of-the-art deep learning methods used nowadays.
Impasse dos Estados Unidos diante da China
Authors: R. Carvalho Bernardo
Published: August 2021

Na medida em que avançamos no século XXI, têm ficado cada vez mais claros os contornos geopolíticos de um conflito em escala global – ao antagonizar a China, os Estados Unidos levaram alguns analistas a falar em uma segunda Guerra Fria. Neste artigo procuro demonstrar que, de fato, o deslocamento do eixo estratégico norte-americano em direção ao oceano Pacífico apresenta consideráveis paralelos com a estratégia de Contenção [Containment] empregada contra o bloco soviético. Procurei, contudo, expor as dificuldades de reedição desta estratégia por parte dos Estados Unidos diante de um adversário cuja política externa tem se mostrado cada vez mais inovadora.
Apontamentos sobre o Equador do petróleo
Authors: Santos Elaine Cristina
Published: August 2021

A economia das sociedades mundiais do século XX reconheceram no petróleo a sua principal fonte de energia. Contudo, a partir do século XXI, muitas alterações ocorreram face às possibilidades de esgotamento, das oscilações de preços do óleo negro, além das mudanças climáticas e dos impactos sociais destes processos. Apesar disso, o petróleo continua relevante na economia capitalista. Em que pese as contradições quanto ao decréscimo das divisas oriundas da exploração petrolífera na América Latina, os governos denominados à esquerda nas últimas décadas adotaram essa matriz energética como a principal fonte de financiamento do seu desenvolvimento social. Fundaram suas políticas de redução das desigualdades, na renda oriunda do extrativismo dos recursos naturais. O caso a ser analisado é o do Equador, que experienciou um período de bonança petroleira (2006-2013), porém o país não conseguiu dar o salto esperado e romper com as estruturas que o prendem ao subdesenvolvimento.
Revolução e Contra Revolução
Authors: Sève Jean , Alves de Lima Filho Paulo
Published: August 2021

O texto apresenta uma nova definição de revolução a partir da crítica às formas teóricas vulgares de conceber uma revolução. Neste sentido, ampara-se sobre concreções comunistas nas instituições francesas e outras formas cooperadas de concreções comunistas na sociedade francesa. Propondo uma nova forma de enfrentar os desafios da práxis revolucionária nos polos de vanguarda do capitalismo.
THE RELATIONSHIP BETWEEN STUDENT’S APPROACHES TOWARD LEARNING AND ACADEMIC ACHIEVEMENT IN THE CHINESE CONTEXT
Authors:   Faculty of Education, University of Macau, China, Wang Chuang , Liu Qimeng ,   Collaborative Innovation Center of Assessment for Education Quality, Beijing Normal University, China, Liu Jian ,   Collaborative Innovation Center of Assessment for Education Quality, Beijing Normal University, China, Cui Tianxue ,   Faculty of Education, University of Macau, China
Published: August 2021

This study examined the relationship between Chinese high school students’ approaches toward learning and their academic achievements. Participants consisted of 14,021 eleventh graders from an eastern province in China. They took the National Standardized Test in three subject areas: Chinese language, mathematics, and English language. The total score was used as an indicator of their academic achievement. Students’ approaches toward learning were measured in three aspects: self-confidence in learning, learning interests, and study habits. Questionnaires of self-confidence in learning and learning interests were adapted from PISA 2006 and PISA 2012. Study habits were measured with the questionnaire adapted from Academic Adjustment Inventory (AAT). The Pearson correlation and hierarchical linear regression results showed that the dimensions of students’ approaches toward learning weresignificantly related to academic achievements. Results of analysis of variance after the control of student gender and socioeconomic status suggested that the top 25% of students in dimensions of approaches toward learning scored significantly higher than the bottom 25% of students with small effect sizes in their performance on the final examinations. This study suggests that helping students build good approaches toward learning may improve their academic achievements. Educators are recommended to put more effort into helping students cultivate learning confidence and developing interests in learning. Classroom teachers are advised to guide students in fostering good study habits and make study plans.
(RE)CAREER SCALE: PILOT STUDY FOR THE VALIDATION OF A SCALE ABOUT CAREER POST-CAREER TRANSITIONS
Authors:   Faculty of Human Sciences, Catholic University of Portugal, Portugal, Pinto Joana Carneiro
Published: August 2021

This article aims to validate the factorial structureof the (Re)CareerScale: Coping Styles, which evaluates how late adults think and feel about career changes, in particular the transition to a career post-career. A career post-career is a development phase that takes place after the formal retirement of a job/ continued work and requires the involvement in a set of developmental tasks related to one’s own, the environment, and the decision-making and planning (Pinto, in press). Thirty-sixitems were developed, considering the literature review of the main career development models. These items were administered to a total of 95 Portuguese late adults (31 (32.6%) men and 64 (67.4%) women; Mage=62.91; SDage=6.901), of which 47 are in an active professional situation and 48 already retired. The Exploratory Factor Analysis (EFA) indicated a three-dimensional career post-careermodel considering a set of developmental tasks related to Identity, Opportunity and Adaptation. The final version of 30 items has good psychometric properties, with Cronbach’ salphas ranging from .82 to .89. The descriptive study and the correlation between the three dimensions suggest that the scale has potential to be used in research and intervention programs to support the transition to a career post-career.
INTEGRATING CORE COMPETENCIES IN PROFESSIONAL MUSIC TRAINING CURRICULUM — THE TAINAN UNIVERSITY OF TECHNOLOGY EXPERIENCE
Authors:   Music Department, Tainan University of Technology, Taiwan, Tseng Hua Hui
Published: August 2021

Music curriculum integration in professional music training involves the exploration of how educators can integrate individual competency items developed by Teachout's (1997) three categories of skills/knowledge components, namely, teaching, personal, and musical skills and behaviors, into the music education curriculum. The purpose of this paper is to use Denis’s (2017) skills/knowledge competency of university coursework as the enquiry lens. The focus is skills/knowledge competency with the three subsections for personal, teaching, and musical skills and behaviorsthat need to be shaped in different ways to successfully convey music content to students. Insights into the results of the necessary skills/knowledge components are gained through using the example of the Music Department at the Tainan University of Technology, Taiwan. The findings demonstrate that music curriculum integration with a competency-based approach to practice helps with successfully implementing classroom management strategies.
PRE-SERVICE ENGINEER EDUCATORS LEARNING MATHEMATICS: MAPPING THE LIVED COMPLEXITY
Authors:   Department of Education, School of Pedagogical and Technological Education ASPETE, Greece, Kasimatis Katerina , Moutsios-Rentzos Andreas ,   Department of Primary Education, National and Kapodistrian University of Athens, Greece, Matzakos Nikolaos ,   Department of Education, School of Pedagogical and Technological Education ASPETE, Greece, Rozou Varvara ,   Department of Philosophy, National and Kapodistrian University of Athens, Greece, Kouloumpis Dionisios ,   Department of Educational Studies, National and Kapodistrian University of Athens, Greece
Published: August 2021

In this paper, we adopt a systemic perspective to investigate the teaching of mathematics in ASPETE, which is a tertiary education institute in Greece that offers a two-faceted degree: an engineer degree and a pedagogical degree as engineer educator. We focus on the complex lived reality of first year Electrical Engineers and Mechanical Engineers students through a multileveled affective mapping oftheir studying in ASPETE, including: approaches to study, confidence in learning mathematics, conceptions about mathematics and its role in their studies and career, and views about mathematics teaching effectiveness (considering both what they actually experienced and what they would prefer to experience). Thestudents were found to show a lack of preference for the surface approach (though not combined with a preference for a deep approach), a neutral-positive confidence in learning mathematics, and to be satisfied by the teachers’ effectiveness. Confidence in learning mathematics appeared to be central in the identified dynamic affect system, whilst their conceptions about mathematics seemed to be related with the desired characteristics of mathematics teaching. The students of the two departments differed in their levels of confidence in learning mathematics, which we posit that is linked with the qualitatively different affective complexity they experience.
COASTRO: @N ASTRONOMY CONDO – TEACHERS’ ATTITUDES AND EPISTEMOLOGICAL BELIEFS TOWARDS SCIENCE IN A CITIZEN SCIENCE PROJECT
Authors:   Agrupamento de Escolas de Santa Bárbara, Planetário do Porto –Centro Ciência Viva, Faculdade de Ciências da Universidade do Porto, Instituto de Astrofísica e Ciência do Espaço da Universidade do Porto, Portugal, Costa Ilídio André , Morais Carla ,   Centro de Investigação em Química da Universidade do Porto, Unidade  de  Ensino  das  Ciências,Departamento de Química e Bioquímica, Faculdade de Ciências da Universidade do Porto, Portugal, Monteiro Mário João P. F. G. ,   Departamento de Física e Astronomia da Faculdade de Ciências da Universidade  do  Porto, e Instituto de Astrofísica e Ciência do Espaço da Universidade do Porto, Portugal
Published: August 2021

An attitude is seen as a hypothetical construct related to a tendency expressed by evaluating a particular entity with some degree of favour or disfavour. In the case of attitudes toward science, these cannot be isolated from understanding science’s processes: the path to produce, refute, and change knowledge. Thus, it is critical to promote public engagement with science-astronomy and technology with the goal of understanding content, but also of understanding what science is and how it is built. In this context, CoAstro: @n Astronomy Condo emerged –a citizen science project starts with the engagement of primaryschool teachers with the Research Group on the “Origin and Evolution of Stars and Planets”at the Instituto de Astrofísica e Ciências do Espaço (IA). A semi-structured interview was conducted to study teachers' attitudes and epistemological beliefs towards science and the changes promoted by CoAstro. The interview was performed before and after the development of the CoAstro. It involved nine primary school teachers with no degree in science and who volunteered to participate in CoAstro. The results show that there has been an increase of interest in astronomy and the reinforcement of epistemological beliefs.