bluuebunny/crossref_metadata_2025 huggingface dataset:
Programming cell communications with pH-responsive DNA nanodevices
Authors: Hou Junjun , Zhu Shitai , Zhao Ziwei , Shen Jianlei , Chao Jie , Shi Jiye , Li Jiang , Wang Lihua , Ge Zhilei , Li Qian
Published: March 2021

Self-assembly of cells is regulated with pH-responsive DNA triplex nanodevices, enabling responsive cargo transportation between cells under external stimuli.
Keggin-type polyoxometalate-containing metal–organic hybrids as friction materials for triboelectric nanogenerators
Authors: Zhang Ying-Ying , Hu Mingjun , Shao Zhichao , Huang Chao , Qin Qi , Mi Liwei
Published: March 2021

The POM-based inorganic–organic hybrids with different structures were assembled and used as the friction materials to construct TENGs and the results demonstrated that the output performance was closely related to the dielectric constant.
Electronic structure of n-cycloparaphenylenes directly observed by photoemission spectroscopy
Authors: Kanai Kaname , Inoue Takuya , Furuichi Takaya , Shinoda Kaito , Iwahashi Takashi , Ouchi Yukio
Published: March 2021

Electronic structure of non-planar organic molecule [n]CPP was investigated using photoelectron spectroscopy.
Strain-driven phase transition and spin polarization of Re-doped transition-metal dichalcogenides
Authors: Wang Rui-Ning , Jin Chen-Dong , Zhang Hu , Lian Ru-Qian , Shi Xing-Qiang , Wang Jiang-Long
Published: March 2021

Re-Doped MoX2 are suitable candidates for phase and band engineering with minute external perturbation. A feasible strain controllably drive 1H ⇔1Td transitions, but only tensile strains effectively induce magnetism within the Stoner model.
Preparation of a ZnIn2S4–ZnAlOx nanocomposite for photoreduction of CO2 to CO
Authors: Shao Yuqing , Wang Xinkui , Dou Zhaolin , Liang Xiaoyu , Zhang Xinxin , Pang Min , Xu Qiang , Ji Min , Wang Min
Published: March 2021

The ZnIn2S4–ZnAlOx nanocomposite inhibits the recombination of charge carriers and therefore significantly boosts CO2 photoreduction efficiency.
Photocatalytic carbon dioxide reduction coupled with benzylamine oxidation over Zn-Bi2WO6 microflowers
Authors: Tan Dongxing , Cheng Xiuyan , Zhang Jianling , Sha Yufei , Shen Xiaojun , Su Zhuizhui , Han Buxing , Zheng Lirong
Published: March 2021

Here, we demonstrate for the first time the formation of Zn-Bi2WO6 microflowers for the simultaneous photocatalytic CO2 reduction and benzylamine oxidation in absence of sacrificial agent or oxidant, and achieve high efficiency of energy utilization.
Programmable dynamic interfacial spinning of bioinspired microfibers with volumetric encoding
Authors: Zhang Ming , Wang Shiyu , Zhu Yuanqing , Zhu Zhiqiang , Si Ting , Xu Ronald X.
Published: March 2021

A novel dynamic interfacial spinning method is developed for volumetric encoding of bioinspired microfibers, enabling construction of multifunctional fibrous materials in a simple, flexible, and highly programmable manner.
Metal-free C–H functionalization of pyrrolidine to pyrrolinium-based room temperature ionic liquid crystals
Authors: Mandal Sumana , Gupta Ravindra Kumar , Pathak Suraj Kumar , Rao D. S. Shankar , Prasad S. Krishna , Ammathnadu Sudhakar Achalkumar , Jana Chandan K.
Published: March 2021

C–H functionalization of pyrrolidine-enabled synthesis of a new class of ionic liquid crystals
Development of a cobalt(iii)-based ponatinib prodrug system
Authors: Mathuber Marlene , Gutmann Michael , La Franca Mery , Vician Petra , Laemmerer Anna , Moser Patrick , Keppler Bernhard K. , Berger Walter , Kowol Christian R.
Published: March 2021

This study presents the first hypoxia-activatable cobalt(iii) prodrugs of the clinically approved tyrosine kinase inhibitor ponatinib. The chemical properties of the complexes have been correlated with thein vivoantitumor activity.
Mono-, di- and tri-nuclear PtII(C^N)(N-donor ligand)Cl complexes showing aggregation-induced phosphorescent emission (AIPE) behavior for efficient solution-processed organic light-emitting devices
Authors: Chen Xi , Sun Yuling , Zhao Xinyi , Deng Xuming , Yang Xiaolong , Sun Yuanhui , Zhou Guijiang , Wu Zhaoxin
Published: March 2021

Mono-, di- and tri-nuclear PtII(C^N)(N-donor ligand)Cl complexesPh-PAYPt1,Ph-PAYPt2andPh-PAYPt3are designed and prepared.
Ultrathin nanoplatelets of six-line ferrihydrite enhances the magnetic properties of hexaferrite
Authors: Vijayan Harikrishnan , Knudsen Cecilie Grønvaldt , Mørch Mathias Ibsen , Christensen Mogens
Published: March 2021

Texture and magnetic properties of aligned hexaferrite obtained from spark plasma sintering of nanosized sixline-ferrihydrite platelets resulting in (BH)max= 33 kJ m−3.
A new highly active La2O3–CuO–MgO catalyst for the synthesis of cumyl peroxide by catalytic oxidation
Authors: Liu HanShuang , Wang KaiJun , Cao XiaoYan , Su JiaXin , Gu Zhenggui
Published: March 2021

The La2O3–CuO–MgO catalyst acts on the oxidation of cumene and shows excellent catalytic activity through the coordination of surface and interior.
Are bacteria claustrophobic? The problem of micrometric spatial confinement for the culturing of micro-organisms
Authors: Molinaro Céline , Da Cunha Violette , Gorlas Aurore , Iv François , Gallais Laurent , Catchpole Ryan , Forterre Patrick , Baffou Guillaume
Published: March 2021

Observation of bacterial growth inhibition under spatial confinement, experimentally (left) and numerically (right).
All carbon hybrid N-doped carbon dots/carbon nanotube structures as an efficient catalyst for the oxygen reduction reaction
Authors: Nguyen Anh Thi Nguyet , Shim Jun Ho
Published: March 2021

The ORR measurements showed that the CD(ED)/CNT catalyst was superior to CD(EG)/CNT and CD(EA)/CNT. They even surpassed the activity of commercial Pt/C in terms of durability, Tafel slope, and MeOH tolerance.
Prospective Exploration of Cognitive-Communication Changes With Woodcock–Johnson IV Before and After Sport-Related Concussion
Authors: Hardin Kathryn Y.
Published: March 2021

Purpose

The purpose of this study was to evaluate changes in cognitive-communication performance using Woodcock–Johnson IV Tests (WJIV) from pre-injury baseline to post sport-related concussion. It was hypothesized that individual subtest performances would decrease postinjury in symptomatic individuals.

Method

This prospective longitudinal observational nested cohort study of collegiate athletes assessed cognitive-communicative performance at preseason baseline and postinjury. Three hundred and forty-two male and female undergraduates at high risk for sport-related concussion participated in preseason assessments, and 18 individuals met criteria post injury. WJIV subtest domains included Word Finding, Speeded Reading Comprehension, Auditory Comprehension, Verbal Working Memory, Story Retell, and Visual Processing (letter and number). The power calculation was not met, and therefore data were conservatively analyzed with descriptive statistics and a planned subgroup analysis based on symptomatology.

Results

Individual changes from baseline to postinjury were evaluated using differences in standard score performance. For symptomatic individuals, mean negative decreases in performance were found for Retrieval Fluency, Sentence Reading Fluency, Pattern Matchings, and all cluster scores postinjury. Individual performance declines also included decreases in story retell, verbal working memory, and visual processing.

Conclusions

This study identified within-subject WJIV performance decline in communication domains post sport-related concussion and reinforces that cognitive-communication dysfunction should be considered in mild traumatic brain injury. Key cognitive-communication areas included speeded naming, reading, and verbal memory, though oral comprehension was not sensitive to change. Future clinical research across diverse populations is needed to expand these preliminary findings.
The Impact of Cumulative Cochlear Implant Wear Time on Spoken Language Outcomes at Age 3 Years
Authors: Gagnon Erika B. , Eskridge Hannah , Brown Kevin D. , Park Lisa R.
Published: March 2021

Purpose

The purpose of this study was to analyze the impact of cumulative hearing hour percentage (HHP) on pediatric cochlear implant users' speech and language development at age 3 years and to determine an evidence-based wear time recommendation that yields typical spoken language standard scores.

Method

A retrospective chart review of 40 pediatric cochlear implant recipients was completed. Children met the following criteria: prelingually deafened, implanted at age 2 years or younger, utilized a speech processor with datalogging capabilities, a minimum of 1 year of cochlear implant use, and language testing completed at approximately age 3 years. Exclusion criteria included significant inner ear malformation (i.e., common cavity) or developmental delay that would preclude spoken language development.

Results

Multiple regression analysis revealed that age and implantation and HHP were predictive of spoken language skills at age 3 years. Further analysis yielded wear time recommendations associated with age-appropriate spoken language based on the age at implantation.

Conclusions

When the goal is age-appropriate spoken language, wear time recommendations should reflect a child's current age, age at implantation, and the comparative daily sound access of age-matched normal-hearing peers. The HHP measurement can help provide that information. The minimum wear time recommendation should be set to 80% HHP with the ultimate goal of 100% HHP to give pediatric cochlear implant recipients enough access to sound and language to achieve their spoken language goals.
Fast radar detection algorithm based on two‐dimensional non‐uniform trilinear autocorrelation function for manoeuvring target with jerk motion
Authors: Liang Zhongying , Li Yanyan , Zhou Yan , Wang Ling
Published: March 2021

This letter presents a fast detection algorithm based on a two‐dimensional non‐uniform trilinear autocorrelation function for the manoeuvring target with jerk motion. In the proposed algorithm, the echoes’ energy can be integrated into peaks in a three‐dimensional parameter space coherently, and the range migration and Doppler frequency migration can be compensated simultaneously. Compared with other representative detection algorithms, this proposed algorithm can achieve a good balance between the computational complexity and detection performance.
A Plug&Play approach for modeling and simulating applications in the era of internet of social things
Authors: Maamar Zakaria , Sellami Mohamed , Masmoudi Fatma , Asim Muhammad , Haseeb Abdul , Baker Thar , Yahya Fadwa
Published: March 2021

This article presents an approach to model and simulate Plug&Play social things. Confined into silos, existing (not social) things are restricted to basic operations like sensing and actuating, which deprive them from participating in the satisfaction of complex business applications. Contrarily, social things are expected to engage in collaborative scenarios and to tap into specific relations that connect them to peers when achieving these scenarios. These relations are referred to as complimentary, antagonism, and competition, and allow to develop networks of things. To capitalize on such networks, the approach to model and simulate Plug&Play social things puts forward four stages that are referred to as connecting to demystify social relations between things, influencing to examine the impact of social relations on things, playing to make things perform while considering influence, and incentivizing to reward things based on their performance. A smart system for elderly the care centers has been developed to showcase the technical doability of Plug&Play social things. The system is an integrated development environment allowing IoT engineers to define the collaboration of social things, thanks to a set of drag&drop operations.
Light robustness model for the bidding strategy of an electric vehicle aggregator
Authors: Gong Xin , Wang Fei , Su Yu , Xu Qiangqiang
Published: March 2021

Considering the uncertainties of the behaviour of electric vehicles (EVs) and the bidding of other participants in the market, the light robustness bidding model for the EV aggregator in the day‐ahead market is constructed. The model is a bilevel model, with the upper‐level model representing cost minimisation of the EV aggregator, whereas the lower‐level model represents market clearing providing market price and bidding energy for the upper‐level model. Bids of other market participants and EV driving pattern were not known to the EV aggregator in advance. They were seen as uncertain variables. A numerical example was used to illustrate the feasibility of the proposed method. Through the example analysis, the costs of the EV aggregator under different circumstances are compared and, under the same uncertainties, the results of the method proposed herein are also compared with the traditional robust optimisation method and stochastic fuzzy programming method.
The LOFAR and JVLA view of the distant steep spectrum radio halo in MACS J1149.5+2223
Authors: Bruno L. , Rajpurohit K. , Brunetti G. , Gastaldello F. , Botteon A. , Ignesti A. , Bonafede A. , Dallacasa D. , Cassano R. , van Weeren R. J. , Cuciti V. , Di Gennaro G. , Shimwell T. , Brüggen M.
Published: March 2021

Context.Radio halos and relics are Mpc-scale diffuse radio sources in galaxy clusters, which have a steep spectral indexα > 1 (defined asS ∝ ν−α). It has been proposed that halos and relics arise from particle acceleration induced by turbulence and weak shocks that are injected into the intracluster medium (ICM) during mergers.

Aims.MACS J1149.5+2223 is a high-redshift (z = 0.544) galaxy cluster possibly hosting a radio halo and a relic. We analysed LOw Frequency Array (LOFAR), Giant Metrewave Radio Telescope, andKarl G. JanskyVery Large Array (JVLA) radio data at 144, 323, and 1500 MHz, respectively. In addition, we analysed archivalChandraX-ray data to characterise the thermal and non-thermal properties of the cluster.

Methods.We obtained radio images at different frequencies to investigate the spectral properties of the radio halo. We usedChandraX-ray images to constrain the thermal properties of the cluster and to search for discontinuities (due to cold fronts or shock fronts) in the surface brightness of the ICM. By combining radio and X-ray images, we carried out a point-to-point analysis to study the connection between the thermal and non-thermal emission.

Results.We measured a steep spectrum of the halo, which can be described by a power-law withα = 1.49 ± 0.12 between 144 and 1500 MHz. The radio surface brightness distribution across the halo is found to correlate with the X-ray brightness of the ICM. The derived correlation shows a sub-linear slope in the range 0.4–0.6. We also report two possible cold fronts in north-east and north-west, but deeper X-ray observations are required to firmly constrain the properties of the upstream emission.

Conclusions.We show that the combination of high-redshift, steep radio spectrum, and sub-linear radio-X scaling of the halo rules out hadronic models. An old (∼1 Gyr ago) major merger likely induced the formation of the halo through stochastic re-acceleration of relativistic electrons. We suggest that the two possible X-ray discontinuities may be part of the same cold front. In this case, the coolest gas pushed towards the north-west might be associated with the cool core of a sub-cluster involved in the major merger. The peculiar orientation of the south-east relic might indicate a different nature of this source and requires further investigation.
The value of carbon sequestration and storage in coastal habitats areas in North West of Morocco
Authors: Ait Kacem Hicham , Maanan Mehdi , Rhinane Hassan
Published: March 2021

Morocco, like the rest of the world, is experiencing a climate change that threatens a number of wetlands. Marine ecosystems contribute to the regulation of the Earth’s climate, but their degradation releases large quantities of greenhouse gases (GHGs) such as carbon dioxide (CO2) into the atmosphere. This paper aimed to map and model changes in carbon storage and sequestration for coastal habitats using the INVEST model, using the Sidi Moussa-Oualidia lagoon complex as a case study. To achieve this objective, several data were used, namely, land use and land cover maps between 2003 and 2020, as well as data on the amount of carbon stored in the three basins; biomass, sediment carbon (soil) and dead carbon (litter), and the annual rate of carbon accumulation in biomass and sediment. The results obtained in this work allowed us to compare the two former and current carbon stock and net sequestration scenarios and to evaluate the social cost of carbon in the study area. This study can facilitate the development of a coastal rehabilitation strategy to take advantage of the benefits of these wetlands and, at the same time, to conserve the ecosystem services provided by these environments, including the CBCS.
Characterization and toxicological evaluation of leachate from Bacolod city sanitary landfill using tilapia (Oreochromis niloticus): a preliminary study
Authors: Hiponia Rick Jhan , Ubas Ryan Gabriel , Mahilum Cejay , Amores Vlademir , Jucalla Rose Ainee , Andico May Joy , Baylon Angel , Teodoro Fely
Published: March 2021

This study was carried out to characterize and assess the toxicity of Bacolod City Landfill leachate using Tilapia as bio-indicator species. Acclimatized Oreochromis niloticus fishes (length of 14 cm ± 2.0 cm and weight of 11.8 g ± 0.9 g) were introduced into each treatment tank containing three different concentrations of leachate in duplicates (10 ppm, 50 ppm and 100 ppm) and a control group. Physical reactions were observed such as erratic swimming, loss of reflex, hyperactivities, and surfacing. Reactions and mortality rate increased with increasing concentration and duration of exposure. Mortality rate using One-way Analysis of Variance (ANOVA) and Duncan’s Multiple Range Test (DMRT) revealed a significant difference between treatment groups and exhibited 100 ppm as the most potent concentration. Heavy metal analysis of Cu and Pb as well as physicochemical analysis of color, Chimecal Oxygen Demande (COD) and Total dissolved Solids (TDS) exceeded the country’s environmental standard set by DENR. The 96 h bioassay stemmed the median lethal concentration (LC50) at 57.688 ppm. The study provides a biomarker database in taking action for the responsible enactment and enforcement of laws to upgrade, enhance and install framework for proper treatment of sanitary landfill leachate in cities and municipalities in the country.
Air Exchange Rate and Internal Air Flows in a Naturally Ventilated Museum Building
Authors: Björling Mikael , Hjulstad Guro
Published: March 2021

A controlled indoor environment is crucial to the preservation of valuable historical artefacts in museums, but is influenced by many factors such as building properties, exhibit design, number of visitors, outdoor conditions etc. This study aims to monitor the local air exchange rates (AERs) and internal air flows in the Viking Ship Museum, Oslo, Norway during different outdoor conditions and is part of a project to create a new museum for the ships. Homogeneous emission tracer techniques (with tracer A) were used to monitor the local mean age of air (from which the local AER can be estimated). The internal air flows from a building zone were monitored by loading that zone with another tracer (B). The building outline is in the shape of a cross with four wings emanating from a central tower and thus naturally creates five zones to investigate. Three measurement periods were conducted with outdoor conditions ranging from winter to late summer. During winter conditions the average hourly air exchange rate (ACH) for the museum is fairly low (0.05 h-1), but during summer conditions it rises fourfold (0.2 h-1). During the summer, windows and doors may be kept open and the number of visitors peaks. The internal flows are very large, as indicated by very similar patterns of the sampler loads for both A and B tracers in relation to the twenty sampling positions.
Application of Horizontal Confluents Jets in a School Virtual Chamber
Authors: Conceição Eusébio , Conceição Mª Inês , Gomes João , Lúcio Mª Manuela , Awbi Hazim
Published: March 2021

The study presented in this work is performed in a virtual chamber, similar to an existing experimental chamber, with dimensions of 4.50×2.55×2.50 m3. The chamber, occupied with twelve virtual manikins, is equipped with six tables, twelve chairs, one exhaust system and one inlet system, based in confluents jets system. In the exhaust system are considered six air ducts, located above the head level, connected to the ceiling area. The inlet system, based in four vertical ducts, with 0.15 m diameter, located on the corners of the chamber, are equipped with consecutive holes, that promotes horizontal jets near the wall. The results demonstrate that when the airflow rate increases the air quality number increases, the thermal comfort number decreases and the ADI increases slightly. The predicted percentage of dissatisfied index values show that the thermal comfort level is acceptable, the dioxide carbon concentration values show that the indoor air quality is near the acceptable value and the Draught Risk is acceptable.
Studying the impact factors influencing variable-capacity heat pump energy performance through simulation
Authors: Prud’homme Solange , Breton Stéphanie , Tamasauskas Justin , Lachance Alex , Kegel Martin
Published: March 2021

Cold-climate variable-capacity air-to-air heat pumps (VCHPs) have the potential to significantly reduce energy use in the Canadian residential sector. However, optimizing their integration in the Canadian climate can be a challenge, with efficiency and operating behaviour heavily dependent on ambient conditions, building thermal loads, modulating capability and the units’ individual performance characteristics. Better understanding how these factors influence energy performance can lead to improved system selection, and ensure that high efficiency space heating systems contribute towards meeting Canada’s emission reduction targets. This study outlines three major factors – individual performance characteristics (cold climate capacity, part load performance), modulation ratio and sizing – related to VCHP selection, and examines their relative impact on annual energy use and operating behaviour using a simulation-based approach.
Analyzing the Factors that Effect Maximum Time to Repair Thermal Energy Systems in Cold/Arctic Climates
Authors: Oberg Bjorn , Urban Angela , Leffel Emmett , Goebel Jonathan , Perry Matthew , Vas Dragos , Broderson Dayne , Liesen Richard , Zhivov Alexander
Published: March 2021

Resilient energy systems are those that can prepare for and adapt to changing conditions, and recover rapidly from disruptions including deliberate attacks, accidents, and naturally occurring threats. This makes thermal energy systems resilience especially important in extreme climates such as arctic or tropical environments. While metrics and requirements for availability, reliability, and quality of power systems have been established (DoD 2020), similar metrics and requirements for thermal energy systems are not well understood. In one of the first attempts to address this deficiency, a study was conducted to better understand the factors that affect maximum time to repair thermal energy systems. Maximum time to repair of thermal systems can be defined in terms of how long the process can be maintained or the building remains habitable or protected against damage from freezing of water pipes, sewer, fire suppression system, protect sensitive content, or start growing mold during extended loss of energy supply with extreme weather events. The purpose of this paper is to present the methodology and results of a novel temperature decay test conducted during the winter, along with blower door tests on five representative military buildings in Alaska. The results from the field tests described in this paper show that the distribution of temperature decay is not uniform throughout the building and that it will vary depending on solar position, building features and wind direction. This demonstrates that strategic placement of personnel, equipment and facilities that are critical to building operations, can extend operation time during a thermal energy disruption.
Diode laser as local treatment for oral Kaposi's sarcoma in HIV young patient: a case report
Authors: Lombardi Niccolò , Varoni Elena , Moneghini Laura , Lodi Giovanni
Published: March 2021

Introduction: Kaposi's sarcoma (KS) is a malignant mucocutaneous neoplasm caused by human herpesvirus 8 (HHV-8). Four types of KS exist and, in each of them, the patient could develop skin and visceral lesions. Surgical excision, radiotherapy, intralesional chemotherapy and systemic chemotherapy are widely accepted as treatment options. Observation: The aim of this paper is to present diode laser as minimally invasive procedure in management of oral KS. We report here a case of multiple oral lesions of acquired immunodeficiency syndrome (AIDS)-associated KS, which has been solely treated with diode laser. Discussion: There is no bibliography on local treatment of oral KS with diode laser and this clinical case appears to be the first regarding this technique. Conclusion: This conservative approach, in association with highly active antiretroviral therapy (HAART), is safe and effective, shows fewer side effects than chemotherapy, radiotherapy and surgical excision and may be evaluated as potential treatment for oral KS.
Dynamic modelling and linear quadratic sliding mode control of a multivariable looper system in hot strip mills
Authors: Fang-Chen Yin , Xiang-Cheng Wu
Published: March 2021

This paper introduces a linear quadratic sliding mode control (LQ-SMC) scheme into a looper control system. First, according to a 1700 mm tandem hot mill, the state-space dynamic model of the looper system was established, and then, the optimal control law of the looper system was obtained based on the established model. Finally, the optimal sliding mode and optimal sliding mode control law of the LQ-SMC scheme were designed such that the sliding motion could satisfy the optimal value of the quadratic performance index. Simulation results show that the proposed control scheme has complete robustness to external disturbances that satisfies certain conditions, and the coupling between the looper angle dynamic and strip tension dynamic is also minimized.
Impurity removal from brass alloy by slag refining treatment
Authors: Li Yaqiong , Zhang Lifeng , Cai Xinyu , Zhang Ying , Liu Ligang , Zhao Zhen
Published: March 2021

Impurity removal from Cu-Zn (brass) alloy is an important issue for copper feedstock production. This study investigated brass alloy purification through the slag refining process using two kinds of agents, namely Cu2O and ZnO. The results showed that using ZnO as the slag to purify brass alloy for 1 h can remove impurities, such as Al, Pb, Fe, Ca, and Si, among which the removal efficiencies of Si reached to 60%. After the ZnO slag refining, the Zn loss ratio was only approximately 2%; thus, the brass alloy composition remained stable. The slag refining process using ZnO-contained slag did not only realize brass purification, but also maintained the brass composition stability.
SMR : tour d’horizon des initiatives internationales
Authors: Crampon Cécile
Published: March 2021

Depuis quelques années, les discussions s’intensifient sur le développement des Small Modular Reactors (SMR) que ce soit au niveau des États, des centres de R&D, des organisations internationales ou des industriels. C’est le cas aussi au sein de l’Agence de l’énergie nucléaire (AEN) qui en fait un domaine d’étude prioritaire. Il s’agit de changer de paradigme en inscrivant les SMR en rupture avec les concepts des réacteurs existants, pour des bénéfices tant économiques que de sûreté. Si l’effet de série est mis en avant, il aura besoin d’être conjugué avec d’autre leviers tels que l’aspect simplifié des designs SMR, la construction modulaire, ou encore l’harmonisation des normes industrielles et de sûreté au niveau international, grâce à une approche plus concertée entre les pays.
Transition from Vertical to Horizontal Industrial Policy in Ukraine: Effects on Industrial Sector Growth
Authors: Deineko Liudmyla , Tsyplitska Olena , Hrebeniuk Nadiia , Deineko Oleksandr
Published: March 2021

This paper explores the determinants of industry’s value added growth related to transition of Ukrainian industrial policy from vertical to horizontal type in 2015. The method used is econometric modelling through building multiple linear regression, where the real rates of value added growth from year to year represent the dependent variable. As explanatory variables the real rates of capital investments, structural changes, institutional indicators of regulatory quality and index of economic freedom as well as dummy-variables denoting the periods associated with industrial policy transit were introduced into the model. The main finding of the study is the revealed negative effect of horizontal industrial policy on industrial sector productivity. Other results showed the significant contribution of capital investments growth rates and government support’s share in the State budget expenditures. The included institutional determinants as well as structural changes indicator didn’t play any significant role in providing of industry’s value added growth. The results of modelling were used in recommendations for matrix (combination of vertical and horizontal instruments) policy implementation in Ukraine.
Development and Use of Information and Digital Technologies at Ukrainian Enterprises
Authors: Shkvaryliuk Marta , Horal Liliana , Khvostina Inesa , Maksymova Alla , Shyiko Vira
Published: March 2021

The paper considers the problems consider the problems of enterprises digitalization. Based on the research of the scientific literature, it is established that enterprises in the modern world need the active introduction of information and digital technologies to ensure the competitiveness of production and active development in the future. The analysis and assessment of the use and development of communication and information technologies by domestic enterprises is carried out. According to its results, it is established that the main areas of information and communication technologies implementation in domestic enterprises are cloud computing services, sources of "big data" for the analysis of "big data", 3D printing, external links to the Internet, own websites and electronic trade via the Internet, etc. It is determined that due to the rather intensive growth of the number of enterprises in the information and communication industry, the use of their developments in production is rather insignificant. Only 5% of enterprises during the study period used all the above information technologies in their activities. Based on the analysis, the problem areas of the process of implementation and development of communication and information technologies at domestic enterprises are identified and recommendations for improving the efficiency of information and communication technologies are provided. The MatLab Statistic Toolbox built into MatLab is used to determine the trends of the impact of digital innovations and the number of information and communication enterprises on GDP.
Transformation of Ukrainian Automotive Industry in the Context of Electromobility: Applying the Experience of Visegrad States
Authors: Savelyev Yevhen , Kuryliak Vitalina , Darvidou Konstantia , Lyzun Mariia , Lishchynskyy Ihor
Published: March 2021

2009 has marked the start of a decline in Ukrainian automotive industry. Its volumes neared insignificancy in 2020. The authors consider the issue of the industry’s revival in the national economy. The basis of the concept is the creation of enterprises for the production of electric vehicles, including components, semi-finished products and accessories to them. It is suggested that investors can be attracted by developing cooperation of legislative and governmental institutions and local governments with world market leaders and taking measures to improve the national indicators in terms of the ease of doing business. It is proposed to focus the business philosophy of new enterprises on the use of vehicles rather than the field of production, as has been the case since the invention of the automobile. The choice of innovative areas should take into account the megatrends and use individualization, urbanization, artificial intelligence, mobility, digital culture, cooperation with other industries, offers of additional goods and services as its foundations.
Micro-Sized Enterprise Management During the Epidemic. Qualitative Analysis
Authors: Kęsy Marcin , Pawliszczy Dariusz , Morozovska Liudmyla , Navolska Nataliya , Apostolyuk Oksana
Published: March 2021

The epidemic has affected the business situation in business entities, especially micro-sized enterprises, which mainly work in the service sector. In the event of a crisis, it is the service sector that is at high risk for business. To improve the financial condition of companies throughout Poland, a so-called “anti-crisis shield” was prepared, in addition, the governing bodies of the Lubuskie Voivodeship prepared an assistance plan for entrepreneurs. Its counterpart at the local level was assistance directed at companies in Zielona Góra. The cognitive value of the article is enriched by a thematic study done at micro-sized enterprises operating in the service sector in the territory of the Lubuskie Voivodeship with offices in Zielona Góra.
Linguistic and Communicative Aspect of Business Education in A Modern Economic University
Authors: Bondarchuk Larysa , Boiko Nataliia , Podgurska Tamara , Tovstenko Viktoria , Kryvych Nina
Published: March 2021

The paper considers specific language and communication projects conducted at the Kyiv National Economic University named after Vadym Hetman, which promote the humanization of business education, provide practical implementation of knowledge and skills of students of an economic university, increase professional, linguistic and cultural competencies of future professionals. Moreover, humanitarian projects are based on the interdisciplinary and cross-cultural foundations, that enriches the process of studying business disciplines, promotes intercultural ties, forms patriotic, civilizational and universal values.
Translanguaging as an Aspect of ESP Acquisition in Non-Linguistic Universities
Authors: Vyshnevska Kira , Bratanych Olga , Skydan Sergii , Hushko Olena , Karimova Zulfizar
Published: March 2021

This article seeks to develop Translanguaging as a theory and an efficient ESP classroom practice. We consider Translanguaging at linguistic and linguodidactic (spontaneous, or preplanned) levels. Our findings may be of certain practical value for ESP teachers, hesitant about acceptance of Translanguaging for building rapport with students, creating a positive learning environment and aiding their acquisition of target language. We contextualize Translanguaging in the ESP classroom realities of the State University of Economics and Technology (Ukraine), National University of Tashkent, Bukhara State University (Uzbekistan) and Samara State Technical University (the Russian Federation). The study was based upon the online survey of teachers’ attitude towards Translanguaging and their practice of translanguaging in ESP classrooms. In order to obtain reliable information and to explore the topic rigorously we applied a combined-method design, integrating quantitative and qualitative approaches. The paper provides empirical results on the role of translanguaging in ESP classrooms, the expediency of using the translanguaging strategy in ESP classes and its "legitimization" in the methodology of teaching, the extent of using Translanguaging by university teachers and students, evaluations of Translanguaging shortcomings and benefits. Studies have shown that translanguaging is both an efficient learning tool and a useful teaching method if pedagogical activities are designed thoroughly.
Legal Support of Non-Cash Settlements in Economic Activity
Authors: Braichenko Serhii , Dzholos Sergii , Kolisnyk Artem , Koshulko Oksana , Varunts Larysa
Published: March 2021

The article presents the exploring of legal support of non-cash settlements in economic activity. In the article, the complex analysis of the tendencies of the legal regulation of the cashless transfers in commercial activity has been done. Also, the article has been prepared some recommendations on improvement of non-cash settlements, taking into the consideration fact that there are different types of payments under modern economic conditions, which change the approaches to the specific features, protection, and the peculiarities of their usage. Besides, in the article, some problems of the legal regulation of cashless settlements have been investigated according to the papers of international academics from different countries. Also, some legal documents of the state Ukraine in this direction have been analysed in the paper. Among the documents was the Instruction on Cashless Payments in Ukraine in the National Currency; the Civil Code of Ukraine, etc. Therefore, the legal support of non-cash settlements in economic activity is critical and valuable because all the support, as well as all the conditions of the implementation of the modern informational and telecommunication technologies in the activities of the financial institutions, may increasing of the clients’ demand on the services of the cashless transfers.
Electronic Cases as An Element of the Administrative Procedure in The Provision of Administrative Services
Authors: Dubinskiy Oleg , Lomakina Olena , Sikorskyi Oleksandr , Kudaibergenov Azamat
Published: March 2021

The article is devoted to the study of the current state of legal regulation of the institute of electronic case as an element of administrative procedure in Ukraine and the practice of its implementation on the example of the procedure for providing administrative services through the Centers of administrative services. The main problems of the institute and possible ways to solve them are considered, as well as prospects for the development of administrative procedure, based on international experience and regulatory framework of states, including - members of the European Union in the study area.
Social Aspects of State Regulation of Agricultural Production
Authors: Barabash Lesia , Malovanyi Mykhailo , Osipova Alla
Published: March 2021

State regulation of agricultural production in Ukraine is aimed at increasing production and ensuring food security of the country and its population. However, the low level of social development, as well as social problems, which in rural areas among the population have now become particularly acute, reduce the potential of this area of the national economy. That is why the question arises of finding active incentives, tools and mechanisms that would encourage the rural population to act and create a promising basis for improving its social status. One of the main existing problems of state regulation of agricultural production in Ukraine is the provision of financial incentives to large agricultural producers. And although such a policy has allowed to increase export potential, but has led to the destruction of rural areas and the impoverishment of the rural population. The intensive activities of these producers on the basis of intensive technologies have led to significant imbalances in the development of the industry with the prevalence of crop production and the decline of livestock, reduced soil quality, as well as rising unemployment of the rural population. This has led to an increase in the shadow sector through illegal activities and hidden income.
Forecasting Career-And Competence Indicators of a Social Worker in the Context of Digital Transformations of the Society
Authors: Kuzmina Mariia , Kuzmin Viktor , Mosaiev Yurii , Karpenko Natalia , Tarasenko Kyryl
Published: March 2021

The article is devoted to the problem of forecasting the career and competence indicators of a social worker in the context of digital transformations of the society. The paper analyzes the social and historical context of the formation of social workers’ career competence indicators. The article compares the analogue and digital system of career competence indicators of a social worker.
Green Infrastructure of Post-USSR Cities for Prevention of Noise Pollution
Authors: Maksymenko Nadiya , Sonko Sergiy , Skryhan Hanna , Burchenko Svitlana , Gladkiy Anton
Published: March 2021

The green infrastructure provides many different benefits for the environment and for human well-being. One of these benefits – protecting from noise pollution. The study of the deterioration of the ecological situation in cities is associated not only with the study of natural but also with physical environmental factors of natural and artificial origin. Increasingly, physical factors are defined as risk factors for the urban population and belong to the group of anthropogenic factors. Increased urbanization, mechanization of processes and the development of the transport network are intensifying influences for citizens. Territorial organization of the urban landscape in post-USSR cities, is quite complex and has signs of spontaneous formation, without protective function of green infrastructure from noise pollution. The aim of this research is to measure noise levels in Moskovsky district in Kharkiv, Ukraine. Kharkiv is a large industrial city and noise pollution is a considerable factor of influence on the environment. Based on these tasks, we have analyzed noise pollution in Moskovsky district in Kharkiv. Were identified 80 experimental points. Noise measurement was performed using an instrument “Digital Sound Level Meter”. Was made the noise maps for working day and weekend in the mornings and in the evenings. For mapping was used QGIS instrument interpolation. The normal level of noise for this district is 60-70 according to the Ukrainian normative document. The WHO recommends the level of noise less than 20-30 decibels. According to this also was analyzed the change in the noise level in the zones of green spaces and was studied the objects of green infrastructure witch reduce noise in the cities.
Posterior shoulder dislocation with reverse Hill-Sachs lesion. A technical note and report of two cases
Authors: Kazamias Konstantinos , Bisbinas Vasiliki , Markopoulos George , Pellios Stavros , Bisbinas Ilias
Published: March 2021

Posterior shoulder dislocation (PSD) with a reverse Hill-Sachs lesion is a rare injury with challenging management. This article is a technical note, describing the combination of both, modified McLaughlin procedure with posterior Bankart repair, for the surgical treatment of traumatic PSD associated with a substantial reverse Hill-Sachs lesion. Two patients with mid-term follow-up are presented. Approaching and repairing both sides of the joint, balance and congruency are restored, the humeral head is centralized in the glenoid and the patient starts early mobilization and rehabilitation safely.
Convergent and known group validity of the STarT Back Tool in a Nigerian population with chronic low back pain
Authors: Mbada Chidozie Emmanuel , Ojo Joshua Oluwafunmibi , Idowu Opeyemi Ayodiipo , Afolabi Taofik Oluwasegun , Afolabi Aanuoluwapo Deborah , Oke Kayode Israel , Sonuga Oluwatobi Ademola , Karstens Sven , Fatoye Francis
Published: March 2021

Background The STarT Back Tool (SBT) was developed to aid the stratification of patients with low-back pain (LBP), based on future risks for physical disability.

Objective Investigation of the convergent and known group validity of the SBT in a Nigerian population with chronic LBP using disability-related psychosocial outcomes.

Method Cross-sectional study involved 30 consenting patients with chronic LBP in an outpatient physiotherapy clinic of a tertiary health institution in Nigeria. Future risk of disability was assessed using the SBT. Psychosocial variables of pain catastrophizing, fear-avoidance beliefs (FAB), and kinesiophobia were assessed using the Pain Catastrophizing Scale, the Fear-Avoidance Beliefs Questionnaire and the Tampa Scale of Kinesiophobia, respectively. Data was analysed using percentages and Spearman correlation.

Results Based on the SBT, there were rates of 43.3 % and 23.3 % for low and high future risks of physical disability. The median score of pain catastrophizing was 13.5, that of FAB came in at 16.5 related to physical activity and 14.0 related to work, and the score for kinesiophobia amounted to 39. The SBT total scores moderately correlated with the FAB related to work (rho = 0.45 (95 % CI 0.09–0.700). FAB related to physical activity (p = 0.040) significantly differed across the SBT subgroups.

Conclusion The SBT and the other psychosocial instruments used in this study did not correlate to a sufficient degree. In addition, patients exhibiting catastrophizing, fear-avoidance beliefs, or kinesiophobia could not be differentiated based on SBT risk groups. The results should be interpreted with caution until findings from additional studies with sufficient sample sizes are at hand.
Arthroscopic Subscapularis Tendon Repair Using the Mason-Allen Technique
Authors: Huang Junqi , Cheng Jiajia , Tang Shitian , Shi Bo , Liu Gang , Xie Gangtai
Published: March 2021

Background Arthroscopic rotator cuff repair has recently been popularized for treating tears. In a biomechanical trial, the Mason-Allen stitch improved the fixation quality of poorly vascularized tendons. The use of this technique involving the subscapularis tendon remains rare. The aim of this study was to evaluate the clinical outcomes of Mason-Allen technique repaired subscapularis tendons.

Methods A retrospective research of collected data from 98 patients with subscapularis tears who had undergone arthroscopic repair between May 2015 and December 2018. There were 75 males and 23 females. The mean age was 56.4 ± 9.6 years and the mean follow-up was 12.5 ± 4.0 months. The visual analog scale (VAS), American Shoulder and Elbow Surgeons (ASES) score, and Constant-Murley score were used to analyze shoulder function. An MRI was performed to assess the integrity of the repair.

Results Patients had significantly less pain and a better active range of motion compared with preoperative levels. VAS improved significantly from a preoperative mean of 3.42 to a postoperative mean of 1.91. ASES increased significantly from the preoperative mean of 43.6 to the postoperative mean of 74.5. Seven cases suffered from retears, which were confirmed by an MRI examination.

Conclusion Arthroscopic rotator cuff repair with the Mason-Allen method resulted in a decreased level of pain and satisfied function recovery.
Comparison of Changes in SRS-22 Values with Improvement in Cobb Angles after Posterior Fusion Surgery in Adolescent Idiopathic Scoliosis
Authors: Gem Kadir , Hancioglu Sertan , Bilgiç Abdulkadir , Erkan Serkan
Published: March 2021

Introduction The purpose of this study was to evaluate the relationship between the correction rate in Cobb angle and the improvement in quality of life profile in terms of Scoliosis Research Society (SRS)-22 values.

Patients and Methods Between January 2007 and December 2013, posterior instrumentation and fusion was performed to 30 patients with adolescent idiopathic scoliosis (AIS). Patients were grouped according to their improvement rate in Cobb angles after surgery. Patients with an improvement rate of > 80% were grouped as Group A; those with an improvement rate of > 60% and ≤ 80% as Group B and those with an improvement rate of ≤ 60% were grouped as Group C. The SRS-22 questionnaire of these three groups was calculated and their relationship with the improvement in Cobb angle was evaluated.

Results No statistical difference was found among the three groups in terms of pain, appearance, function, spirit, satisfaction, and SRS-22 values (all p > 0.05).

Conclusion The results of this study demonstrate that the degree of correction rate does not correlate with the degree of improvement in the SRS-22 questionnaire in patients with AIS that underwent posterior fusion and instrumentation.