bluuebunny/crossref_metadata_2025 huggingface dataset:
DESCRIPTION OF THE RADIATION MODULE OF MULTIPHYSICAL CODE FOR ANALYSIS OF THE BAFFLE GEOMETRY DEGRADATION
Authors: Filonov V. , Filonova Y. , Kovalenko O. , Kondratyuk V.
Published: June 2022

To date, the possibility of lifetime extension for nuclear power units beyond the project period is extremely important, as well as developing new approaches to expand the previously estimated possible years of lifetime extension of power units, for which this period is almost exhausted. According to the design limit of safe operation for power units with VVER type of reactors - the limiting factor in terms of changes in the geometric state is the contact of baffle and peripheral fuel. Preliminary analysis of the geometric changes of reactor internals, which is mandatory during lifetime extension, showed that more expected is the contact of the baffle metal and barrel, which precedes the contact with nuclear fuel assemblies. An additional factor is that due to the design features of the baffle there are radial flows of coolant from the core to bypass. This situation is not foreseen by the project, so there are discussions in the domestic industry about further safe operation. The main reason for the change in geometry is the combination of accumulated radiation dose and the temperature field unevenness. The "classical" analysis, which is used for lifetime extension, consists of successive stages: the assessment of radiation conditions, temperature field calculation and, finally, the stress-strain state estimation. This approach is acceptable only in the case of a weak link between the physical modules (steps), and requires the conservative evaluation at each step. To date, this approach has almost exhausted itself, as the reserve of "guaranteed safe operation" years, which are estimated by the consistent approach, is almost expired. This paper describes the module for radiation loads estimation, which is a component of the multiphysical code for the analysis of baffle state in terms of its geometry degradation. This approach is developed by specialists of IPP-Centre LLC and PhD students and students of the university.
METHOD OF SUBOPTIMAL CONTROL OF THE INTERCHANGE POWER FLOWS IN THE INTERCONNECTED ENERGY SYSTEM
Authors: Kostiuk V. , Sidorov O.
Published: June 2022

The method of optimized economic dispatch control (EDC) of the wide area Interconnected Power System (the IPS) with effective inter-areal power balancing is presented. The algebraic expressions valid for online computations of the best gain values for the automated generation control (AGC) have been specified to provide suboptimal control processing for the area, or regional power system (PS). Relevant operational conditions for secondary frequency and power control system were determined to compensate electric power flow imbalances in certain control areas (regional PS) of the considered IPS.

To apply optimized AGC gain tunings, the numerical values of current power imbalances should be used for computations and proposed algebraic expressions are to be embedded seamlessly into the AGC algorithms of the SCADA-based multifunctional digital automated control system, which is already operated now to provide consistent controllable support for the normal processing inside the IPS of Ukraine. The AGC controllers of the SCADA-based system should be tuned periodically according to the proposed approach and the gain values updated properly.
ESTIMATED PARAMETERS IN THE SYSTEMS OF A SINGLE-AXIS ORIENTACIS OF A PHOTOELECTRIC MODULE
Authors: Korovushkin V. , Dubovyk V. , Bosak А.
Published: June 2022

The development of "green" energy in Ukraine involves an increasingof the amount of electricity generated by photovoltaic modules (PMs). However, PMs have disadvantages associated with the inconsistency of electric generation in time due to the diurnal and annual motion of the Sun and to the shading of the modules. In order to maintain steady generation during the day and the year, there are two ways to minimize the impact of these factors.First one is to install an excess capacity which means higher cost of the solar plant and using an additional area.Second one isto apply a system of orientation PMs perpendicular to the sun's rays.

In the article three cases of solar panels installation are considered: usinga two-axistracking system, using aheight tracking system and anazimuth tracking system. There wasgiven the method and algorithms of calculation and analysis the parameters of theuniaxialand biaxial tracking system when installed in Kyiv.The algorithm involves calculation the coordinates of Sun in any moment of time for the considered location, pass-through and absorptive capacityof the protective glass, estimation the amount of the direct and diffuse solar radiation and their impact on the total radiation on the surface of the photoconverter. There was made an estimation of energy usage efficiency levels for the considered systemsusing the proposed algorithm.
RESEARCH OF PHYSICAL PROCESSES IN LAMINATED MAGNETIC CORES OF ELECTRIC MACHINES
Authors: Chumak V.V , Kovalenko М.А , Trotsenko Y.O. , Ihnatiuk Y.S. , Stulishenko A.S.
Published: June 2022

The aim of this work is to use fast-moving processes to detect defects in the inter-sheet insulation of laminated magnetic core of electric machines. Violation of the sheet insulation causes increased eddy currents as a result of increased losses and integrated local overheating in the body of the magnetic core. The article develops a mathematical field model of induction distribution in a toroidal toothed magnetic core of an asynchronous motor series 4AA63V4U3 0.37 kW when superimposed on the back of the core of the power winding powered by a high frequency voltage source in the range. An experimental study of losses in the magnetic coret and the distribution of losses on eddy currents and remagnetization (hysteresis).

When designing an electric machine, its operating characteristics, optimal operating modes, thermal condition and many other factors are calculated using the nominal values ​​of steel parameters, windings and all materials used in the machine. However, these materials do not always have the stated characteristics and quality. For example, during the manufacture and stamping of electrical steel sheets, it is exposed to a significant level of influence, which in some way affects its characteristics. In addition, even if we assume that during the production of all stages of manufacturing the material came flawlessly, the condition and as a result the parameters of materials and EM in general change during operation as a result of accidents or even simple aging and wear.

Therefore, given these facts, it becomes clear that during planned or unplanned repairs it makes sense to check the condition of materials, insulation, as their condition depends on the allowable loads, temperature, etc. In particular, the state of the magnetic circuit largely determines the temperature around the conductors in the grooves and as a result determines how long the winding will actually last in contrast to the specified service life and rated power at which to use this EM.

The concept of the state of the magnetic circuit can be divided into the state of electrical steel and the state of its insulation. The first component changes quite poorly during operation and is generally caused by the "aging" of steel if you do not take into account any serious damage as a result of accidents, but it can be damaged during manufacture. But the second component is significantly affected during operation and significantly determines the quality of the magnetic circuit as a whole.
Formation of legal culture of college students
Authors: Ashirova Zhazira , Zholdasbekova Saule , Nurzhanbayeva Zhanat , Akxmet Laura , Karatayev Galymzhan
Published: June 2022

The legal culture of students (hereinafter LCS) can be defined as a spiritual and material system which ensures the effective usage of legislative and other regulatory documents in professional activities to solve issues. The LCS in professional training is a unity of gnoseological, axiological, activity-based and technological components which can be considered as criteria in forming this culture. The selected structural components of the LCS in professional training are refracted into functional ones. The most important functions are: cognitive-transformative, legal-regulatory, value-normative, communicative, prognostic, legal socialization, and humanistic functions. The pedagogical model of the LCS formation, represented by the target, structural-content, organizational-procedural and control-evaluation components, which reveals the theoretical essence, internal structure and logic of the complex process under consideration, the unity of all its elements that are interrelated and interdependent, allows creating a legal educational space and provides for the process of forming the LCS in the conditions of professional and pedagogical education. The basic principles in the formation of LCS in professional training are revealed: consistency, conceptuality, legal conditionality, and prognostic-based principles.
Majority religious politics: The struggle for religious rights of minorities in Sampang, Madura
Authors: Ramadhan Gilang
Published: June 2022

The strength of the discrimination against the Shiites in several places, especially in East Java, cannot be separated from the legitimacy given to the Tajul Muluk-led Shia heretical sect by the East Java MUI. One of the factors causing this discrimination is the difference in the perception of interests and the unequal quality of authority. In the case of Shia discrimination, certain positions in society delegate power and authority to other positions. This condition resulted in inequality in the status of Shiites as citizens’ rights and social subordination of the dominant group to other groups. This research was library research, where the researcher used data collection techniques with critical discourse analysis. In this study, the researcher interpreted the finding through literature, books, documents, and various digital and print reports related to Shia discrimination. In this study, the researcher found that the theological justification of the Sunni group is often used to discriminate against Shia. However, the basis of this problem is a conflict of political interest, where some groups are afraid of being dominated by others groups. Therefore, the researcher offered intrafaith dialogue to promote humanity by letting go of various political interests, as offered by Abu Nimer.
Jakarta’s urban culture representation on social media @jakarta_tourism: A semiotics analysis
Authors: Triary Hardy Marco , Susilo Daniel
Published: June 2022

Social media can form the identity of the representation content. The content of the Instagram account @jakarta_tourism represents the identity of the urban culture of Jakarta as a tourism brand. This study aims to find out and reveal the representation of Jakarta as a city of urban culture, based on the signs from the content of the Instagram account @jakarta_tourism. This study is descriptive qualitative using the constructivist paradigm using the semiotic analysis method by Roland Barthes. The main focus of the semiotic analysis by Roland Barthes is to find the meaning of denotation, connotation, and myth of a sign. The results in this study indicate that some content of the Instagram account @jakarta_tourism represents Jakarta as a city of urban culture and highlight that as part of the brand of Jakarta Tourism. That was revealed after this research analyzed using syntagmatic and paradigmatic studies on posts of Instagram account @jakarta_tourism to find the meaning of denotation and connotation/ myth. As for the myth, it is shown that the concept of urban culture is closely related to acculturation forms of urban culture and urban society and space to express various arts and cultures.
Marketing digital y su relación con la gestión de ventas de la empresa Falabella S.A. en San Juan de Miraflores - 2020
Authors:   , Quellcca Apaza Leyla Diana , Botello Ibañez Soledad Sofia
Published: June 2022

Las organizaciones emplean el marketing digital como estrategia para gestionar mejor sus ventas, ya que en la actualidad tener presencia en un mercado cada vez más competitivo es todo un reto. En el desarrollo del estudio se plantea como objetivo analizar la relación del marketing digital en la gestión de ventas de la empresa Falabella en el distrito de San Juan de Miraflores en el año 2020. Como metodología se aplicó, un enfoque cuantitativo, de diseño no experimental, de tipo correlacional entre las variables; como técnica se utilizó la encuesta y como instrumento de recojo de datos se aplicó el cuestionario a los clientes de Falabella. La muestra fue no probabilística, para lo cual se eligió a conveniencia a 150 clientes. Para determinar la confiabilidad de los instrumentos se calculó el Alfa de Cronbach, obteniendo una confiabilidad de (0.958) para la primera variable y de (0.956) para la segunda variable. Se demostró la correlación existente entre las variables con un valor Rho de Spearman (0.660) y un Sig. de (0.000), por lo cual se corrobora la hipótesis. El estudio concluye, que el marketing digital se relaciona significativamente con la gestión de ventas en el periodo 2020. Así mismo, se observa que los clientes recomendarían el uso de la plataforma Falabella porque es amigable, práctica e innovadora al momento de realizar sus compras.
The Value-Added Tax (VAT) Improvement Program: Raising the operational efficacy of the VAT administration in Bangladesh
Authors: Bari Estiaque , Khan Towfiqul Islam , Ullah Mohammad Shahid
Published: June 2022

Bangladesh has a weak and inequitable tax system. Over the past 15 years, the government of Bangladesh (GoB) has relied on the regressive value-added tax (VAT) for more than a third of all revenues, with little progress towards strengthening direct taxation of high net-worth individuals and large corporations. From 2015–2021, the World Bank’s VAT Improvement Program (VIP) assisted the Bangladesh National Board of Revenue in improving VAT administration. VIP helped speed up automation and increase revenues. But the program did not include any objectives to improve VAT equity and fairness, and it also fell short on improving transparency and taxpayer satisfaction. To address VAT’s regressive nature and its impact on low income households, the GoB needs to improve coverage of social protection programmes. Bangladesh and its external partners should focus on strengthening progressive direct taxation. Meanwhile, the government must end gender-blind VAT administration and recognize that VAT negatively affects low income female entrepreneurs and consumers.
Monitoring SARS-CoV-2 variant transitions using differences in diagnostic cycle threshold values of target genes
Authors: Bordoy Antoni E. , Saludes Verónica , Panisello David , Clarà Gemma , Soler Laia , de León Alexia Paris , Casañ Cristina , Blanco-Suárez Ana , Guerrero-Murillo Mercedes , Rodríguez-Ponga Beatriz , Noguera-Julian Marc , Català-Moll Francesc , Pey Irina , Armengol Maria Pilar , Casadellà Maria , Parera Mariona , Pluvinet Raquel , Sumoy Lauro , Clotet Bonaventura , Giménez Montserrat , Martró Elisa , Cardona Pere Joan , Blanco Ignacio
Published: June 2022

Monitoring the emergence of new SARS-CoV-2 variants is important to detect potential risks of increased transmission or disease severity. We investigated the identification of SARS-CoV-2 variants from real-time reverse transcriptase polymerase chain reaction (RT-PCR) routine diagnostics data. Cycle threshold (Ct) values of positive samples were collected from April 2021 to January 2022 in the Northern Metropolitan Area of Barcelona (n = 15,254). Viral lineage identification from whole-genome sequencing (WGS) was available for 4,618 (30.3%) of these samples. Pairwise differences in the Ct values between gene targets (ΔCt) were analyzed for variants of concern or interest circulating in our area. A specific delay in the Ct of the N-gene compared to the RdRp-gene (ΔCtNR) was observed for Alpha, Delta, Eta and Omicron. Temporal differences in ΔCtNR correlated with the dynamics of viral replacement of Alpha by Delta and of Delta by Omicron according to WGS results. Using ΔCtNR, prediction of new variants of concern at early stages of circulation was achieved with high sensitivity and specificity (91.1% and 97.8% for Delta; 98.5% and 90.8% for Omicron). Thus, tracking population-wide trends in ΔCt values obtained from routine diagnostics testing in combination with WGS could be useful for real-time management and response to local epidemics.
Radiative heat transfer between two carbon nanotubes
Authors: Nefedov Igor S. , Davidovich Michael V. , Glukhova Olga E. , Slepchenkov Michael M. , Rubi J. Miguel
Published: June 2022

We analyze the radiative heat transfer between two parallel and infinitely long carbon nanotubes (CNTs). The radiative heat exchange is due to the difference between the Poynting vectors generated by the fluctuating currents when the CNTs are at different temperatures. The radiated and absorbed Poynting vectors are expressed in terms of the correlations of the electromagnetic fields obtained from the Green’s function and the fluctuation-dissipation theorem for the current density. The analysis takes into account the scattering of the fields by the nanotubes. We show that the radiative heat transfer depends not only on the distance between nanotubes, but also on their chiralities and thus on their semiconducting or metallic nature, which would allow the design of nanostructures for optimal radiative heat exchange. PACS numbers: 44.40.+a,41.20.Jb,42.25.Bs, 03.70.+k
Longitudinal Metabolomic Profiles Reveal Sex-specific Adjustments to Long-duration Spaceflight and Return to Earth
Authors: Stroud Julia E. , Gale Michael S. , Zwart Sara R. , Heer Martina , Smith Scott M. , Montina Tony , Metz Gerlinde AS
Published: June 2022

Spaceflight entails a variety of environmental and psychological stressors that may have long-term physiological and genomic consequences. Metabolomics, an approach that investigates the terminal metabolites of complex physiological alterations, takes into account the dynamic state of the human body and allows the identification and quantification of down-stream metabolic outputs linked to up-stream physiological and genomic regulation by stress. Employing a metabolomics-based approach, this study investigated the longitudinal metabolic perturbations of male (n=40) and female (n=11) astronauts on 4-6-month missions to the International Space Station. Proton nuclear magnetic resonance (1H-NMR) spectroscopy followed by univariate, multivariate and machine learning analyses were used on blood serum to examine sex-specific metabolic changes at various time points throughout the astronauts’ missions, and the metabolic effects of long-duration space travel. Space travel generated sex-specific changes in energy metabolism, bone mineral and muscle regulation, immunity, and macromolecule maintenance and synthesis. Additionally, metabolic signatures suggest differential metabolic responses especially during the recovery period, with females requiring more time to adjust to return to Earth. These findings provide insight into the perturbations in glucose and amino acid metabolism and macromolecule biosynthesis that result from the stressors of long-duration spaceflight. Metabolomic biomarkers may provide a viable approach to predicting and diagnosing health risks associated with prolonged space travel and other physiological challenges on Earth.
Knowlege, safety, and teamwork: A qualitative study on the experience of anaesthesiologists and anaesthesia nurses working in the preanaesthesia assessment clinic
Authors: Kristoffersen Eirunn Wallevik , Opsal Anne , Tveit Tor Oddbjørn , Fossum Mariann
Published: June 2022

Background: The preanaesthesia assessment clinic (PAC) has been shown to contribute to safe anaesthesia assessment in hospitals. In the PAC, patients are assessed with an interview and can also ask relevant questions about anaesthesia. The intention is to ensure that patients are comprehensively prepared for the surgery and hospital stay. Although earlier studies have assessed the effects of PAC, the experiences of anaesthesia personnel working in PACs remain unexplored. Thus, this study aimed to examine the experiences of anaesthesiologists and anaesthesia nurses working in PACs as well as to explore barriers and facilitators in this context.Methods: A descriptive qualitative approach was used to explore the experiences of anaesthesiologists and anaesthesia nurses working in PACs. Thirteen semi-structured interviews were conducted using face-to-face, telephone, or digital platforms in five hospitals in west, south, and north Norway between 2020 and 2021. The interviews were transcribed and thematically analysed based on Braun and Clarke’s six-steps reflexive approach. Results: Five themes and ten subthemes were identified through an active analysis process, including developing competence in clinical anaesthesia practice, identifying barriers and facilitators influencing collaboration and teamwork, improving patient safety and outcomes through structured assessment, and identifying other organisational factors affecting the delivery of healthcare to surgical patients. Conclusion: Working in the PAC contributed to competence development among the personnel. Additionally, teamwork was considered important for the proper functioning of the PAC. Patient safety was improved because of the structured assessment in PAC, with patients getting the opportunity to improve their knowledge and being more involved in the upcoming anaesthesia. Participants said they believed that the cancellation rate, delays in the operating room, and length of hospital stay for surgery patients were reduced.
Genome-wide association mapping for identification of sheath blight resistance loci from wild rice Oryza rufipogon
Authors: Aggarwal Sumit K. , Malik Palvi , Neelam Kumari , Kumar Kishor , Kaur Rupinder , Lore Jagjeet S. , Singh Kuldeep
Published: June 2022

Sheath blight (ShB) caused by Rhizoctonia solani is one of the serious constraints that hamper global rice production. It causes severe yield loss of up to 69% under favorable environmental conditions. The application of chemical fungicides remains the primary approach for the management of this disease. But, overuse of chemical fungicides causes potential health and environmental risk. The use of host plant resistance is a very effective, economic, and sustainable strategy to control sheath blight disease in rice. In this report, we have evaluated 405 accessions of Oryza rufipogon for four ShB-related traits i.e. lesion height (LH), plant height (PH), relative lesion length (RLH), and disease score (DS) during the years 2015, 2016, and 2017. A total of 44,109 high-quality SNP markers on 301 accessions were employed to identify significant marker-trait associations (MTAs) using a genome-wide association study (GWAS). The GWAS analysis revealed a total of 22 significant SNPs associated with the ShB-related traits distributed on all the rice chromosomes except 10 and 12. Among them, eleven were associated with RLH, seven with PH, and one each with LH and DS. The SNPs on chromosomes 3 and 9 were associated with multiple traits. Furthermore, seven ShB resistance loci were also found to be co-localized with previously reported ShB resistance genes/QTLs. These findings provide valuable information to identify key SNPs associated with ShB resistance. Significantly associated SNPs could be used for introgression of ShB resistance traits into rice cultivars using marker-assisted selection (MAS).
Adsorption of Methylene Blue on A Polymeric Matrix of Poly Lactic Acid/Sodium Alginate/Carbon Nanoparticles (PLA/SA/CNP)
Authors: Fathy Reem , Ragab Eman , Ali Korany A.
Published: June 2022

This study presents the preparation of Poly lactic acid/Sodium alginate (PLA/SA) and PLA/SA/CNP beads for the methylene blue (MB) adsorption. A Fourier transform infrared spectrometer (FTIR) characterized the produced adsorbent. The various dosages of CNP content were added to PLA/SA beads. The percentage of adsorbed dye increased with increasing CNP content, so the optimum percentage is 5%wt. The beads' adsorption capacity and removal efficiency was investigated as a function of (adsorbent dosage, contact time, initial pH, and concentration of adsorbate). The highest rate of the adsorptive removal process for MB dye was found at pH 9 after 120 min equilibration time with 50mg of PLA/SA/CNP beads. Langmuir and Freundlich's models were applied for the illustration of experimental data. Langmuir models illustrate that the maximum adsorption capacity equals 304.88mg/g.
Secure MFCC Architecture for health care application
Authors: abid ferdaous kamoun abid kamoun , meddeb-Makhlouf Amel meddeb-Makhlouf , Zarai Faouzi Zarai
Published: June 2022

The current field of which our day is cloud computing. It is used in several fields like medical field. Moreover, for several reasons, such as diversity and the rapid increase in the number of connected devices, Cloud Computing is unable to meet certain requirements such as support for mobility, a high level of scalability, low latency and real time. This creates many challenges for the traditional architecture of Cloud Computing. to meet its requirements, several paradigms have appeared in recent years, such as mobile edge computing, mobile cloud computing and fog computing. Based on our research, fog computing is complementary to the cloud and uses network devices to process the latency of data collected using end users. In addition, MCC (Mobile Cloud Computing) devices offer many advantages such as streaming services to Fog Nodes. Due to the open features and high scalability of these networks, security is not guaranteed, where most of the existing research focuses on protecting systems and their platforms against attacks from unauthenticated devices only on a peripheral paradigm. To answer these questions and secure the IT architecture, which combines the advantages of three emerging technologies: Cloud computing, Fog Computing and Mobile Cloud Computing. In this article, we provide a method called MFCC (Mobile Fog Cloud Computing) that is used to distribute and collaborate firewalls to prevent network-based attacks for healthcare application. Different levels of collaboration, based on a model for assessing confidence in relation to risk, are introduced.This evaluation framework used the NeSSi² tool, where the results show that the proposed architecture is better in terms of transmission delay and blocking rate compared to related works. The most important result is that our proposal is able to prevent distributed attacks, such as DDoS.
Evaluation of left ventricular diastolic function in patients with coronary microvascular dysfunction (CMD) by cardiovascular magnetic resonance feature-tracking (CMR-FT)
Authors: Kong Huihui , Cao Jiaxin , An Jing , Tian Jinfan , Yong Jingwen , Song Xiantao , He Yi
Published: June 2022

To evaluate left ventricular (LV) diastolic function in subjects with CMD using cardiovascular magnetic resonance-feature tracking (CMR-FT), we included 92 patients with suspected myocardial ischemia. Of them, 19 patients were included in the non-CMD group (49 ± 11 years) and CMD group included 73 patients (52±12 years) based on the stress perfusion cardiac magnetic resonance results. CMR-derived volume-time curves and CMR feature-tracking (CMR-FT) parameters were used to derive indices of diastolic dysfunction. The former included early peak filling rate (PFR) and time-to-peak-filling rate (T-PFR). The latter included LV global peak longitudinal diastolic strain rate (LDSR), circumferential diastolic strain rate (CDSR) and radial diastolic strain rate (RDSR). Compared to the non-CMD group, CDSR (1.26±0.8 vs. 1.22±0.8, P< 0.05), and RDSR (-2.23±2.5 vs.-2.17±2.0, P< 0.05) were significantly lower in the CMD group. PFR, T-PFR and LDSR showed no difference between the two groups. In Conclusion, the parameters reflecting left ventricular diastolic function on CMR were reduced in CMD patients that suggests left ventricular diastolic dysfunction in CMD patients.
Carbon Monoxide Desorption and Reduction Studies of Graphitic Carbon Nitride Supported Nickel Catalysts for CO Methanation
Authors: Ahmad Khairul Naim , Samidin Salma , Salleh Fairous , Isahak Wan Nor Roslam Wan , Alamiery Ahmed , Masdar Mohd Shahbudin , Yusop Muhammad Rahimi , Al-Azzawi Waleed Khalid , Rosli Masli Irwan , Yarmo Mohd Ambar
Published: June 2022

Graphitic carbon nitride (g-C3N4) has attracted much attention due to its unique polymeric structure of carbon and nitrogen in the form of heptazine units. In this study, a nickel catalyst supported on graphitic carbon nitride was prepared by a facile impregnation method. Ni/g-C3N4 desorption and reduction behaviour with carbon monoxide (CO) was investigated by temperature-programmed desorption (TPD) and reduction (TPR). The as-prepared Ni/g-C3N4 catalyst was also characterized by X-ray diffraction (XRD), N2 physisorption, and X-ray photoelectron spectroscopy (XPS). It was found that the utilization of g-C3N4 as a catalyst support enhances the complete reduction of Ni species and CO desorption. This can be attributed to the role of g-C3N4 support as a reducing agent for Ni, as well as its basicity owing to the richness of nitrogen functional group. The good performance of Ni/g-C3N4 catalyst towards CO methanation can be ascribed to the improvement in adsorption and activation of CO molecules on the active sites and the number of surface basic sites.
Whether the combination of ApoB/ApoA1 ratio and non-HDL/HDL ratio can better predict cardiovascular risks and severity of coronary stenosis in Chinese patients with acute myocardial infarction
Authors: Cao Jianlei , Jin Xiaoqing , Jiang Yi , Xu Haoyue , Liu Yaqi , Cheng Wenlin , Zhang Chao , Wu Xiaoyan
Published: June 2022

Background: Acute myocardial infarction (AMI) is an important cause of death globally. To investigate the value of combining apolipoprotein B/apolipoprotein A1 (APoB/APoA1) and non-high-density lipoprotein/high-density lipoprotein (non-HDL/HDL) ratio in AMI.Methods: Patients admitted within 24 hours after the onset of AMI symptoms were included and divided into AMI group (n=364) and non-AMI group (n=152) according to coronary angiography. After an overnight fast, laboratory data were obtained and calculated. Gensini score was obtained to evaluate the coronary stenosis degree. Multivariate logistic regression, Spearman’s rank correlation analysis and Receiver operating characteristics (ROC) curve analysis were used.Results: Male ratios, patients with smoking and drinking history, ApoB/ApoA1 ratio and non-HDL/HDL ratio were higher in AMI group (P<0.001). ApoB/ApoA1 and non-HDL/HDL ratio were positively related with Gensini score (r=0.507, P<0.001；r=0.187, P<0.001). The association of ApoB/ApoA1 ratio with AMI was stronger than non-HDL/HDL ratio (OR=11.870, 95%CI: 5.735-24.565 vs. OR=2.168, 95%CI: 1.685-2.788). Patients in the top quartile of ApoB/ApoA1 distribution had higher risk of AMI (OR=8.929, 95%CI: 4.800-16.610) compared with those in the bottom, which was the same in non-HDL/HDL (OR=1.346, 95%CI: 1.126-1.610). Area under ROC curve of ApoB/ApoA1 ratio combined with non-HDL/ HDL ratio was the largest but no much higher than ApoB/ApoA1 ratio (0.838 vs 0.833), which was the same with sensitivity and specificity (71.2% and 85.1% vs. 68.1% and 83.5%).Conclusions: ApoB/ApoA1 and non-HDL/HDL ratio were strongly associated with AMI. However, combination of these two have no much greater impact on AMI than that individual contribution of ApoB/ApoA1 ratio.
Moringa oleifera leaf meal fermented with Aspergillus niger as a replacer for mustard oil cake in feeds for juvenile rohu, Labeo rohita
Authors: Manna Tanmoy Kr , Kumar Sikendra , Sahu Narottam Prasad , Sardar Parimal , Jayant Manish , Chowdhury Dilip Kumar , Patel Anusha E. , Varghese Tincy , Maiti Manas Kumar
Published: June 2022

An 8-week feeding trial was carried out to test Moringa oleifera leaf meal (MOLM) as a replacer for mustard oil cake in feeds for juvenile- Labeo rohita (initial mass 5.27 ± 0.01 g). Solid-state fermentation of MOLM was performed using Aspergillus niger and termed FMOLM. Five isonitrogenous (31% crude protein) and isocaloric (350 kcal/100 g) diets were prepared with different levels of MOLM by replacing mustard oil cake (MOC) viz., C (0% MOLM ), T1 (15% MOLM), T2 (30% MOLM), T3 (15% FMOLM) and T4 (30% FMOLM). One hundred and ninety-five acclimated juveniles were distributed to five experimental groups (Tank size 1000 litre) in triplicate, and they were fed daily twice up to satiation. The T4 group showed significantly (p < 0.05) higher weight gain, specific growth rate, protein efficiency ratio and lower feed conversion ratio among different treatments. Protease, amylase, aspartate aminotransferase and alanine aminotransferase were significantly (p < 0.05) higher in T4 compared to T1 and T2 groups. The incorporation of MOLM elevated oxidative enzymes such as superoxide dismutase and catalase. However, their activities were reduced in fermented MOLM groups. In conclusion, 15% MOLM can be incorporated into the diet of Labeo rohita without compromising the growth of fish. However, fermented MOLM can be utilised up to 30% level in the diet of Labeo rohita, ensuring its better growth.
Red Mangrove Propagule Bacterial Communities Vary With Geographic, But Not Genetic Distance
Authors: Scherer Brendan , Mast Austin
Published: June 2022

Bacterial communities associated with plant propagules remain understudied, despite the opportunities that propagules represent as dispersal vectors for bacteria to new sites. These communities may be the product of a combination of environmental influence and inheritance from parent to offspring. The relative role of these mechanisms could have significant implications for our understanding of plant-microbe interactions. We studied the correlates of microbiome community similarities across an invasion front of red mangroves (Rhizophora mangle L.) in Florida, where the species is expanding northward. We collected georeferenced propagule samples from 110 individuals of red mangroves across 11 populations in Florida and used 16S rRNA gene (iTag) sequencing to describe their bacterial communities. We found no core community of bacterial Amplicon Sequence Variants (ASVs) across the Florida range of red mangroves, though there were some ASVs shared among individuals within most populations. Populations differed significantly as measured by Bray-Curtis dissimilarity, but not Unifrac distance. We generated data from 6 microsatellite loci from 60 individuals across 9 of the 11 populations. Geographic distance was correlated with beta diversity, but genetic distance was not. We conclude that red mangrove propagule bacterial communities are likely influenced more by local environmental acquisition than by inheritance.
Non Linear Dynamic Analysis of Cold Formed Steel Stud Walls Subjected to Blast Loading
Authors: Juluru Srija , R Divahar , Abirami R.
Published: June 2022

A detailed dynamic non-linear numerical investigation has been conducted on the conventional and stiffened steel stud wall panel under blast loading. Various parameters such as charge weight, mesh dependency and boundary condition have been investigated in this study, with a specific emphasis on assessing performance of both the types of stud wall panels with respect to midpoint displacement and energy dissipation of the models, with the inclusion of geometrical and material non-linearity. Modeling method and material properties used have been discussed in detail. Initially the numerical simulation has been validated by considering existing experimental results available in literature. The analysis has been led to numerous interesting results on the response of square honeycomb stiffened steel stud wall panel compared to a conventional one. The comparative study also includes suggestion regarding improvement of performance of steel stud walls under blast loading.
Cytological diagnosis of oncocytic variant of medullary thyroid carcinoma with histological and immunohistochemical correlation Running title: Cytolomorphology of oncocytic variant of medullary thyroid carcinoma
Authors: Gupta Rakesh Kumar , Srivast Ritu , Majumdar Kaushik , Batra Vineeta , Ghuliani Deepak
Published: June 2022

Medullary thyroid carcinoma (MTC) is a sporadic or familial tumor of the parafollicular or C-cells that secrete calcitonin. Oncocytic tumors of the endocrine system are a group of rare entities described in several organs, including the thyroid gland and seen in a variety of thyroid conditions that are associated with a broad differential diagnosis like benign (Hürthle cell adenoma, granular cell tumor) and malignant (Hürthle cell carcinoma) neoplasms, variants of papillary thyroid carcinoma (PTC) (tall cell variant, oncocytic variant, and Warthin-like variant) and the oncocytic variant of medullary carcinoma. Oncocytic variant of medullary carcinoma is exceptional not only because of being extremely rare but also being the only oncocytic tumor that is not derived from follicular cells of the thyroid gland. We report here an 18-year-old female patient who presented with complaints of passage of loose stool for 4 months and was on examination detected to have a right thyroid nodule. FNAC of the nodule was done and an oncocytic tumour was diagnosed. The differentials considered were Hürthle cell lesion and medullary carcinoma thyroid (oncocytic cell variant). This was followed by total thyroidectomy along with modified radical neck dissection. Histopathological examination and immunohistochemistry were performed in addition to serum calcitonin levels and a diagnosis of oncocytic variant of medullary carcinoma thyroid was confirmed. We hereby conclude that MTC should be considered as one of the differentials for accurate diagnosis in unusual thyroid carcinomas with predominance of oncocytic cell changes.
The humanistic and economic burden of work-related musculoskeletal pain
Authors: Smith Adam B. , Cooper Stephanie , Hanning Jennifer , Buckley Carolyn
Published: June 2022

Purpose The aim of this study was to evaluate the impact of work-related musculoskeletal (MSK) lower body pain on health-related quality of life (HRQoL) in a large sample of workers in the United Kingdom, as well as evaluating the potential economic impact of MSK pain.MethodsParticipants with self-reported work-related MSK pain completed the Brief Pain Inventory (BPI), the Work Productivity and Activity Impairment (WPAI) scale and the AQoL-4D online. Sociodemographic details, work patterns and healthcare resource utilisation were also collected. UK industry-specific weekly wages were used to evaluate the economic cost.ResultsA total of 1035 completed the survey (57.4% female; mean age 43.4 years). Participants reported spending all (25.2%) or most (53%) of their time at work on their feet. Mean BPI severity score was 4.63 (standard deviation: 2.07); mean BPI interference score was 4.37 (2.49). There was a linear relationship between length of shift, time on feet and pain. Mean AQoL-4D scores were 0.609 (0.254). A mean of 4.12 hours was lost per week due to work-related pain. Mean levels of absenteeism over the last 7 days were 9.5% (20.7%), and presenteeism 33.3% (24.9%). On average there were 1.55 visits to family practitioners (total cost: £19,866) and 1 hospital visit had been made over the year (£37,320) due to work-related MSK pain. ConclusionLower-body work-related MSK pain has a high prevalence. Given this, these results indicate that work-related lower body pain has a significant impact in terms of individual HRQoL and as an economic societal burden.
Encapsulation of anthocyanic extract of jambolan (Syzygium cumini (L.)) in zein ultrafine fibers produced by electrospinning
Authors: Santos Felipe Nardo dos , de Souza Estefania Júlia Dierings , de Souza Jaqueline Ferreira , Pires Juliani Buchveitz , Siebeneichler Tatiane Jéssica , Kringel Dianini Hüttner , Fajardo André Ricardo , Rombaldi Cesar Valmor , Dias Alvaro Renato Guerra , Zavareze Elessandra da Rosa
Published: June 2022

Jambolan is a fruit rich in anthocyanins, among other bioactive compounds. In addition to the biological properties, jambolan anthocyanins have the potential for the production of food packaging, considering that they are antioxidants and can change color as a function of pH (indicator). The objective of this study was to encapsulate jambolan extract at concentrations of 0, 20, 30, and 40% (w/v) in ultrafine zein fibers by the electrospinning technique. The ultrafine fibers produced were evaluated for morphology, size distribution, encapsulation efficiency, contact angle, thermal properties, and antioxidant activity. Overall, the fibers showed uniform and continuous morphology, diameter ranging from 472 to 622 nm, encapsulation efficiency of up to 66.8%, and contact angle ranging from 94.4° to 64.4°. Also, the incorporation of the extract at concentrations of up to 40% w/w, does not alter the stability of the fibers. The fibers showed antioxidant activity of 29.7 to 40.5% inhibition by the DPPH method and 37.9 to 58.8% inhibition by the ABTS•+ method. Therefore, the ultrafine zein fibers with jambolan extract produced by electrospinning show promising characteristics for the elaboration of active and/or intelligent food packaging.
High Resolution Digital Pulse Width Modulator Architecture using Reversible Synchronous Sequential Counter and Synchronous Phase-Shifted Circuit
Authors: Singh S. K. Binu Siva , Karthikeyan K. V.
Published: June 2022

Nowadays, the DC-DC converter digital control is more attracted due to its benefits, like programmability, enhanced control algorithms. As a vital part of digital control, the digital pulse width modulator (DPWM) is designed to satisfy various requirements for higher performance. The existing digital pulse width modulator architecture activated with higher resolution along higher switching frequency, also the mandatory counter clock frequency is higher. To overcome this issue, the hybrid digital pulse width modulator architecture is proposed that combines Reversible Synchronous Sequential Counter and synchronous phase-shifted circuit. The proposed architecture consists of 4 blocks, they are, decoder, synchronous reversible counter, Synchronous Phase- Shifted Circuit, Delay line. The decoder is used to divide the input duty cycle command (DCC) into three parts: most significant bits (MSB), secondary significant bits (SSB) and least significant bits (LSB). The Reversible synchronous counter is used to count trigger signal in every clock period. Here, synchronous phase shift circuit is utilized to select the clock through the quadrant phase-shifted clocks. The delay line is used to set the time resolution of DPWM. In this work, D-Flip flop is used to leave sufficient slack among the set signal and reset signal for averting glitch. It can achieve high linearity resolution together with time resolution. The coding is done in Verilog and the proposed synchronous counter design has been synthesized using Xilinx ISE. Here, the assessment metrics, such as path delay, linearity, output duty cycle and time resolution are analyzed. The performance of the proposed SCD-MCT-MCF design shows higher output cycle 26.75%, 29.93% is compared with the existing design such as high resolution DPWM depending on synchronous phase-shifted circuit and delay line (Hyb DPWM-SPSE-DL), Delay-Line DPWM Architecture with Compensation Module and Delay-Adjustable Unit depending on Delay Line (Hyb DPWM-DLP) respectively.
Osobitosti stavova pedagoških profesionalaca prema djeci (bivših) zatvorenika
Authors: Romstein Ksenija
Published: June 2022

Procjenjuje se da trenutačno u Republici Hrvatskoj tijekom godine oko 12 000 djece ima jednog ili oba roditelja u zatvoru, dok je broj djece bivših zatvorenika značajno veći. Djeca (bivših) zatvorenika svakodnevno se susreću sa stigmatizacijom zbog roditeljskog izvršavanja kazne. S obzirom na to da su odgojno-obrazovne ustanove mjesta koja mogu imati protektivnu ulogu, provedeno je istraživanje o stavovima pedagoških profesionalaca (odgojitelja, učitelja, stručnih suradnika i ravnatelja) prema djeci (bivših) zatvorenika. Rezultati pokazuju kako kod pedagoških profesionalaca postoji tendencija biološkom determinizmu, uz neujednačenost u strukturama afekata, ponašanja i kognicije. Struktura stavova nije povezana s radnim iskustvom (N=162, p=0.000) i razinom formalnog obrazovanja pedagoških profesionalaca (N=162, p=0.000). Ipak, u subskali kognicije pokazalo se da nešto pozitivnije stavove imaju pedagoški profesionalci koji su prethodno imali iskustva s djecom (bivših) zatvorenika. Dobiveni rezultati ukazuju na potrebu i vrijednost dodatnih edukacija za pedagoške profesionalce na temu rada s djecom (bivših) zatvorenika, kao i jačanje socijalne mreže podrške djeci i obiteljima koja bi uključivala vršnjačku podršku, zagovaračke kampanje za širu javnost, intersektorsku suradnju te participativna istraživanja s djecom, obiteljima i (bivšim) zatvorenicima.
Determinants of the successful single stock futures market in Thailand
Authors: Jongadsayakul Woradee
Published: June 2022

Thailand’s Single Stock Futures market has grown recently over the last ten years, evidenced by its 8th place in top 10 exchanges in the world by number of single stock futures traded in 2021. Since the main goal of any futures exchange is to list a successful contact, it is important to demonstrate the determinants of the success of Single Stock Futures. This study uses the sample consisting of 89 companies, on which stocks are underlying for Single Stock Futures in the period between January 2017 and December 2021, and finds that the best fitting method in modelling determinants of the success of Single Stock Futures is the fixed effects model. As expected, the results confirm the existence of a positive relationship between characteristics of underlying stock, including size, volatility, and liquidity, and the successful futures contract. Furthermore, the findings show the negative effects of the first year of contract trading and the tightened daily price limit of Single Stock Futures in response to the COVID-19 pandemic situation on contract success.
AcknowledgmentThe author is grateful to the Department of Economics, Faculty of Economics, Kasetsart University for financial support to conduct this research.
The influence of technological innovative capabilities on firm performance: Moderating effect of strategic agility
Authors: Khraim Hamza
Published: June 2022

This study investigates the influence of technological innovative capabilities (TICs) on firm performance (FP) in the IT sector, with strategic agility as a moderator variable. This paper analyzes the TICs at the firm level in the service sector using the functional approach. An online structured questionnaire was adapted and refined to collect the required information on the influence of TICs dimensions on FP in the IT sector to achieve the objectives. The unit of analysis consists of top management staff and heads of departments from IT firms in Amman, Jordan. A sample of 67 IT firms was selected, and 300 questionnaires were distributed. A total number of returned responses was 223, producing a 74% response rate. Structural equation modeling was used to test the hypotheses. The revealed findings show that learning capability, marketing capability, organizational capability, and strategic planning capability had a significant influence on FP, whereas resource allocation capability was not significant. In addition, multiple hierarchical regression was used to test the moderating effect of strategic agility on the relationship between TICs and FP. Revealed results of the overall model to examine the moderating effect show that strategic agility is not significant in moderating the relationship between TICs dimensions and FP.