bluuebunny/crossref_metadata_2025 huggingface dataset:
X-Ray Jets in the High-redshift Quasars J1405+0415 and J1610+1811
Authors: Snios Bradford , Schwartz Daniel A. , Siemiginowska Aneta , Sobolewska Małgosia , Birkinshaw Mark , Cheung C. C. , Gobeille Doug B. , Marshall Herman L. , Migliori Giulia , Wardle John F. C. , Worrall Diana M.
Published: July 2022

We investigate Chandra X-ray observations of the radio-loud quasars J1405+0415 and J1610+1811 at redshifts z = 3.215 and z = 3.122, respectively, for evidence of extended X-ray emission. Observations totalling 95 ks per target are combined, and X-ray jets that are spatially coincident with known radio features are detected at a greater than 4σ significance. Hardness ratios and emission spectra are determined for all X-ray features, and X-ray fluxes and luminosities are measured. Jet-to-core X-ray flux ratios are estimated for each system, and the ratios are consistent with those observed for nearby and more distant jet systems, although the spread in the parameter is large. These results suggest that to first order the X-ray jet emission mechanisms are redshift invariant. In addition to the extended emission analysis, incorporating also archival data from Swift, we examined the properties of a decline in the Chandra flux from the active galactic nucleus (AGN) of J1610+1811 observed between 2018 and 2021. We conclude that the variability is most likely due to a flaring event that occurred between the years 2017 and 2018 and originated from either the AGN or the inner jet region.
Fermi-GBM Observation of GRB 090717034: χ
2 Test Confirms Evidence of Gravitational Lensing by a Supermassive Black Hole with a Million Solar Mass
Authors: Kalantari Zeinab , Rahvar Sohrab , Ibrahim Alaa
Published: July 2022

Gravitational lensing of gamma-ray bursts (GRBs) can provide an opportunity to probe the massive compact objects in the universe at different redshifts. We have discovered two consecutive pulses in the light curve of GRB 090717034, with the same temporal profile and different count rate, separated by a time interval, which is identified as a gravitationally lensed candidate in the Fermi-GBM GRB catalog. Here, we use the χ
2 minimization method to investigate the similarity of the temporal profile variability of the two pulses as a gravitationally lensed GRB candidate. We find the magnification factor and the time delay between two pulses to minimize the χ
2 function. Then, we perform a Monte Carlo simulation on a sample of mock lensed GRBs and compare the χ
2 of the lensed GRB candidate with the simulation, which confirms this candidate with 1σ confidence level. Assuming that GRB 090717034 is lensed by a pointlike object, the redshifted lens mass is about M

L
(1 + z) = (4.839 ± 1.148) × 106
M
⊙. The lens of this GRB is a candidate for a supermassive black hole along the line of sight to the GRB.
Close Major-merger Pairs at z = 0: Bulge-to-total Ratio and Star Formation Enhancement
Authors: He Chuan , Xu Cong Kevin , Domingue Donovan , Cao Chen , Huang Jia-sheng
Published: July 2022

We present a study of the bulge-to-total ratio (B/T) of a Ks-band-selected sample of 88 close major-merger pairs of galaxies (H-KPAIR), based on two-dimensional decompositions of SDSS r-band images with galfit. We investigate the dependence of the interaction-induced specific star formation rate enhancement (sSFRenh) on the B/T ratio, and the effects of this dependence on the differences between star-forming galaxies (SFGs) in spiral+spiral (S+S) and spiral+elliptical (S+E) pairs. Of all the 132 spiral galaxies in H-KPAIR, the 44 in S+E pairs show higher B/T than those in the 44 S+S pairs, with means of B/T = 0.35 ± 0.05 and B/T = 0.26 ± 0.03, respectively. There is a strong negative dependence of sSFRenh on the B/T ratio, and only paired SFGs with B/T < 0.3 show significant (>5σ) enhancement. Paired SFGs in S+S pairs show a similar trend, and many disky SFGs (B/T < 0.1) in S+S pairs have strong sSFR enhancements (sSFRenh > 0.7 dex). For SFGs in S+E pairs, the sSFR has no clear B/T dependence, nor any significant enhancement in any B/T bin. Disky SFGs in S+S pairs show significant (>4σ) enhancement in molecular gas content (

M

H

2

/

M

star

), while SFGs in S+E pairs have no such enhancement in any B/T bin. No significant enhancement of the total gas content (M
gas/M
star) is found in any B/T bin for paired galaxies. The star formation efficiency of either the total gas (SFEgas = SFR/M
gas) or molecular gas (

SFE

H

2

=
SFR

/

M

H

2

) does not depend on the B/T ratio. The only significant (> 4σ) SFE enhancement found for paired SFGs is the SFEgas for disky SFGs in S+S pairs.
Photometric Metallicity Prediction of Fundamental-mode RR Lyrae Stars in the Gaia Optical and K

s
Infrared Wave Bands by Deep Learning
Authors: Dékány István , Grebel Eva K.
Published: July 2022

RR Lyrae stars are useful chemical tracers thanks to the empirical relationship between their heavy-element abundance and the shape of their light curves. However, the consistent and accurate calibration of this relation across multiple photometric wave bands has been lacking. We have devised a new method for the metallicity estimation of fundamental-mode RR Lyrae stars in the Gaia optical G and near-infrared VISTA K

s
wave bands by deep learning. First, an existing metallicity prediction method is applied to large photometric data sets, which are then used to train long short-term memory recurrent neural networks for the regression of the [Fe/H] to the light curves in other wave bands. This approach allows an unbiased transfer of our accurate, spectroscopically calibrated I-band formula to additional bands at the expense of minimal additional noise. We achieve a low mean absolute error of 0.1 dex and high R
2 regression performance of 0.84 and 0.93 for the K

s
and G bands, respectively, measured by cross-validation. The resulting predictive models are deployed on the Gaia DR2 and VVV inner bulge RR Lyrae catalogs. We estimate mean metallicities of −1.35 dex for the inner bulge and −1.7 dex for the halo, which are significantly less than the values obtained by earlier photometric prediction methods. Using our results, we establish a public catalog of photometric metallicities of over 60,000 Galactic RR Lyrae stars and provide an all-sky map of the resulting RR Lyrae metallicity distribution. The software code used for training and deploying our recurrent neural networks is made publicly available in the open-source domain.
Biogeographic assessment of Gorgonian-associated bacteria with antipathogenic Urinary Tract Infections (UTIs) in Karimunjawa Marine National Park, Java Sea, Indonesia
Authors: Sabdono Agus , Lestari Endang Sri , Sibero Mada Triandala
Published: July 2022

Gorgonian corals of Karimunjawa are impacted by anthropogenic activities, such as increasingly high mariculture intensity with consequent eutrophication, overfishing, tourism, sewage, and other pollutant discharges, which result in changes in the microbial community structure. In this study, bacterial communities associated with six species of Gorgonian, Viminella sp., Ellisella sp., Antipathes sp., Melithaea sp., Astrogorgia sp., and Junceella sp. from both the Marine Protected Area (MPA) and non-Marine Protected Area (non-MPA) zones were screened for their antipathogenic potential against Urinary Tract Infections (UTIs) pathogens. The selected bacterial isolates were identified and compared for their abundance and diversity between the two zones. A total of 156 bacterial strains were assayed for their prospective antipathogenic compounds against seven UTI pathogens, including Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Streptococcus saptophyticus, Acinetobacter baumannii, Klebsiella pneumonia, and Candida albicans. The results showed that 17 of 92 (18.48%) and 6 of 64 (9.37%) bacterial isolates from MPA and non-MPA, respectively, exhibited antimicrobial activity in at least one of the UTI pathogens. By analyzing the gene of 16S rRNA, it was discovered that the 17 isolates of MPA were associated with phyla Actinobacteria, Firmicutes and Proteobacteria, including Streptomyces zhaozhoue, Nocardiopsis salina, Micrococcus endophyticus, Brevibacterium casei, Micrococcus yunnanensis, Saccharopolyspora coralli, Bacillus paramycoides, Virgibacillus salarius, Oceanobacillus iheyensis, and Vibrio alginolyticus. In contrast, only six selected isolates of non-MPA were associated with the phyla Actinobacteria and Proteobacteria, including Nocardiopsis salina, Micrococcus yunnanensis, and Acinetobacter soli. The Diversity Index (H’), Species Richness (S), and Relative Abundance of the MPA zone were higher than those of non-MPA. These results demonstrated that Gorgonian octocoral species in the MPA region harbour varied bacteria and we propose that many Gorgonian-associated bacteria have the prospective for advancing broad-spectrum antibiotics.
Erythroxylum austroguangdongense (Erythroxylaceae), a new species from Guangdong, China
Authors: He Chun-Mei , Zhou Xin-Xin , Ye Xue-He , Chen Weijun , Tong Yi-Hua
Published: July 2022

Erythroxylum austroguangdongense (Erythroxylaceae), a new species from Guangdong Province, China, is described and illustrated. This new species is morphologically most similar to E. calyptratum, but is distinguished by the leathery leaf blade with fewer pairs of secondary veins and flowers borne on leafless nodes of the basal part of the current branch with much longer pedicels and sub-rectangular petal appendages. This is the second native species of Erythroxylum recorded from China.
First record of Lepidiella Enderlein, 1937 from the Oriental Region (Diptera, Psychodidae)
Authors: Jaume-Schinkel Santiago , Kvifte Gunnar Mikalsen
Published: July 2022

We provide the first record of the genus Lepidiella Enderlein, 1937 from the Oriental Region with the description of Lepidiella limicornissp. nov., based on two male specimens collected in Thailand. Additionally, we provide a list of the world species of Lepidiella and discuss the diagnosis and taxonomic placement of the genus.
L'évaluation dans le secteur social et médico-social
Authors: Rousseau Patrick
Published: July 2022

Phénomène de mode tout autant qu’activité sociale omniprésente dans notre société, l’évaluation reste un sujet polémique. Patrick Rousseau trace brièvement l’histoire de cette pratique, pour s’interroger sur l’influence du monde marchand sur le secteur social. L’usager du secteur social pourra-t-il dire « satisfait ou remboursé » ? En empruntant au secteur marchand, ou au secteur sanitaire, sa terminologie, ses outils, ses référentiels, le secteur social ne risque-t-il pas de perdre son sens ? Entre les axes de la défiance particulièrement décrits et ceux de la création d’outils d’évaluation probants dans le secteur social, Patrick Rousseau discute chaque piste ouverte.
L'évaluation dans le secteur social et médico-social
Authors: Barbe Laurent
Published: July 2022

« L’évaluation ne mérite ni excès d’honneur, ni excès d’indignité », mais se présente comme un outil susceptible d’accroître la qualité, de diminuer les coûts, comme l’expression d’une volonté de démocratie sociale. La présente communication décline les différents niveaux possibles de l’évaluation, ses usages, et son champ d’inscription.
L'évaluation dans le secteur social et médico-social
Authors: Bonnami Alain , Bigeault Jean-Pierre
Published: July 2022

Bonnami et Bigeault nous rappellent avec force que le recours à l’évaluation interne ne peut se faire en extériorité du système culturel et représentationnel de l’institution et des acteurs, sous peine de créer un sentiment persécutoire. Ce n’est qu’à ce prix que l’évaluation interne participe d’un véritable mouvement de professionnalisation.
La naissance de l’artillerie japonaise moderne à la fin de l’époque d’Edo (1830-1868)
Authors: Seizelet Éric
Published: July 2022

La modernisation du parc d’artillerie japonais à la fin de l’époque d’Edo fut la résultante à la fois de la menace que faisait peser la poussée occidentale en Asie orientale sur les marches de l’archipel depuis la fin du xviii e  siècle et des tensions intérieures suscitées par la politique à suivre pour y faire face. L’article détaille la façon dont le Bakufu et les fiefs réceptionnèrent et adaptèrent les innovations technologiques militaires occidentales, mais aussi et surtout, les nombreux obstacles, politiques, économiques et techniques qu’il a fallu surmonter. Il fait également le point sur la place de l’artillerie dans les réformes militaires des années 1860 destinées à créer des forces armées organisées sur le mode occidental et leur impact sur la société d’ordres dont la classe extrêmement composite des guerriers était à la tête.
Reconstruire la couverture universelle après l’accession à l’indépendance : les leçons de la Géorgie, de la Moldavie et de l’Ukraine
Authors: Richardson Erica
Published: July 2022

La Géorgie, la Moldavie et l’Ukraine sont des pays très différents, mais, en 1991, ils étaient trois des quinze pays à émerger de l’Union soviétique qui s’était effondrée. Tous trois se sont forgé des parcours uniques en tant qu’États indépendants, ce qui se reflète dans les différentes approches qu’ils ont adoptées pour réformer et moderniser leurs systèmes de santé afin qu’ils puissent mieux répondre aux besoins de leurs populations. L’Union soviétique a organisé le système de santé de toutes ses républiques constitutives de la même manière et le principe de base était que tous les citoyens devaient avoir un accès égal aux soins de santé gratuits au point d’utilisation. Cependant, les perturbations économiques, sociales et politiques survenues dans les années 1990 ont érodé la couverture universelle en Géorgie, en Moldavie et en Ukraine. Depuis 2015, les systèmes de santé devraient atteindre la cible de l’Objectif de développement durable (ODD), à savoir la « couverture sanitaire universelle, y compris la protection contre les risques financiers, l’accès à des services de soins de santé essentiels de qualité et l’accès à des médicaments et vaccins essentiels sûrs, efficaces, de qualité et abordables pour tous » d’ici à 2030 [1].
A study on the transmission and dynamical behavior of an HIV/AIDS epidemic model with a cure rate
Authors: Attaullah  , Alyobi Sultan , Yassen Mansour F.
Published: July 2022

In developing nations, the human immunodeficiency virus (HIV) infection, which can lead to acquired immunodeficiency syndrome (AIDS), has become a serious infectious disease. It destroys millions of people and costs incredible amounts of money to treat and control epidemics. In this research, we implemented a Legendre wavelet collocation scheme for the model of HIV infection and compared the new findings to previous findings in the literature. The findings demonstrate the precision and practicality of the suggested approach for approximating the solutions of HIV model. Additionally, establish an autonomous non-linear model for the transmission dynamics of healthy CD4+ T-cells, infected CD4+ T-cells and free particles HIV with a cure rate. Through increased human immunity, the cure rate contributes to a reduction in infected cells and viruses. Using the Routh-Hurwitz criterion, we determine the basic reproductive number and assess the stability of the disease-free equilibrium and unique endemic equilibrium of the model. Furthermore, numerical simulations of the novel model are presented using the suggested approach to demonstrate the efficiency of the key findings.
2-tuple linguistic $ q $-rung orthopair fuzzy CODAS approach and its application in arc welding robot selection
Authors: Naz Sumera , Akram Muhammad , Sattar Afia , Al-Shamiri Mohammed M. Ali
Published: July 2022

Industrial robots enable manufacturers to produce high-quality products at low cost, so they are a key component of advanced production technology. Welding, assembly, disassembly, painting of printed circuit boards, pick-and-place mass production of consumer products, laboratory research, surgery, product inspection and testing are just some of the applications of industrial robots. All functions are done with a high level of endurance, speed and accuracy. Many competing attributes must be evaluated simultaneously in a comprehensive selection method to determine the performance of industrial robots. In this research article, we introduce the 2TL$ q $-ROFS as a new advancement in fuzzy set theory to communicate complexities in data and presents a decision algorithm for selecting an arc welding robot utilizing the 2-tuple linguistic $ q $-rung orthopair fuzzy (2TL$ q $-ROF) set, which can dynamically delineate the space of ambiguous information. We propose the $ q $-ROF Hamy mean ($ q $-ROFHM) and the $ q $-ROF weighted Hamy mean ($ q $-ROFWHM) operators by combining the $ q $-ROFS with Hamy mean operator. We investigate the properties of some of the proposed operators. Then based on the proposed maximization bias, a new optimization model is built, which is able to exploit the DM preference to find the best objective weights among attributes. Next, we extend the COmbinative Distance-Based ASsessment (CODAS) method to 2TL$ q $-ROF-CODAS version which not only covers the uncertainty of human cognition but also gives DMs a larger space to represent their decisions. To validate our strategy, we present a case study of arc welding robot selection. Finally, the effectiveness and accuracy of the method are proved by parameter analysis and comparative analysis results. The results show that our method effectively addresses the evaluation and selection of arc welding robots and captures the relationship between an arbitrary number of attributes.
Enumeration of the Gutman and Schultz indices in the random polygonal chains
Authors: Zhu Wanlin , Fang Minglei , Geng Xianya
Published: July 2022

The Gutman index and Schultz index of a connected graph are degree-distance-based topological indices. In this paper, we devoted to establish the explicit analytical expressions for the simple formulae of the expected values of the Gutman and Schultz indices in a random polygonal. Based on these results above, we get the extremal values and average values of Gunman and Schultz indices of all polygonal chains.
Human Behavior in Online Auction and Personality Influence
Authors: Chen Yi-Fen , Tsai Chia-Wen , Hsieh Chang-Lung , Chang Hsin-Sheng
Published: July 2022

This study conducts a questionnaire survey on cell phone online we can see the motivation of buyers who purchase phone online. And this study looks insight into the impact of conformity motive driven by the different personal characteristics upon the conformity behavior through online auctions. What makes internet worth discussing is the anonymity of online users .And the purposes of the study attempt conformity pattern of online decision making as well as personality influence and to discuss the factors and motivations influencing conformity, and to provide suggestions that help online marketers exploit the power of crowds to promote online sales. The result shows that persons with high Neuroticism, Agreeableness, Conscientiousness scores love to follow other people’s step and are easily affected by ratings on online auction. Nevertheless, persons with high Extroversion, Openness scores are less susceptible to online conformity and always make decision for their own needs. One may deeply see that personalities play important roles on behavior pattern upon online decision making.
Strategic Procurement of High-Cost Medical Devices
Authors: Kulkarni Parimal S. , Smith L. Douglas
Published: July 2022

This manuscript addresses the problem of strategic procurement of high-cost medical devices at one of the largest nonprofit health-care organizations in the USA. A mixed-integer linear programming (MILP) model is used to reveal the effects of physicians’ allowing alternative devices to be used for their medical procedures, the impact of alternative incentive-pricing mechanisms negotiated with suppliers, and the potential impact of rigidly imposing supplier-scorecard standards on several dimensions – especially when such scorecards are commonly recognized as being subject to “common-variance” rater bias. Solutions are found to be more sensitive to general bias toward high or low ratings in producing scores for vendor performance than to correlations in scores due to common methods bias. Small changes in pricing parameters and scorecards can have outsized effects on “optimal” shares of business allocated to alternative suppliers. This may call for constraints to avoid disruptive shifts in business relationships when revising procurement strategies through time.
Simulation of Shear Capacity of Reinforced Concrete Column with Variation of Stirrups Using Finite Element Method Analysis
Authors: Hilal Iin Shabrina , Afifuddin Mochammad , Hasan Muttaqin
Published: July 2022

Shear failure of column causes the column to have shear reinforcement that cannot withstand shear forces so that it loses of lateral strength quickly. This research aims to see the effect of the configuration with the addition of shear reinforcement in the direction and perpendicular to the direction of the shear force on the capacity of reinforced concrete columns that are loaded with axial and lateral loads. The test was carried out by providing a constant axial load (0.3 P0) followed by a shear load until the test object failed. The numerical analysis was carried out using software based on the finite element method, namely ATENA Version 5 and GID Version 13.0.1 developed by Cervenka Consulting. This study used reinforced concrete with three variables of shear reinforcement. It can be the normal columns without stirrup reinforcement (S0P2), the addition three (3) stirrups in the direction of the shear reinforcement (S4P2) and the addition of two (2) stirrups in the direction of the shear reinforcement and one (1) stirrups perpendicular to the shear reinforcement (S5P2). After the numerical analysis is carried out, the results are verifies using experimental testing. The numerical analysis and experimental results give the load and deflection relationship results that are almost close. Therefore, the difference in shear loads compared to the experiments results and numerical analysis on columns S0P2, S4P2, and S5P2 is 0.11%, 3.95% and 1.16%, respectively, with a deflection ratio of 4.72%, 37.80% and 9.44%. The pattern of column destruction in the numerical model resembles the destruction pattern of the experimental results, both of which indicate that the column has shear cracks.
Rice Husks - Potential Source of Cellulose Microfibers/Nanofibers and Biogenic Silicon Dioxide Nanoparticles
Authors: Kroisová Dora , Dvořáčková Štěpánka , Yahya Rawaa , Kůsa Petr
Published: July 2022

Rice husks are among the world's most significant agricultural waste. On the one hand, their use is related to solving an environmental problem; on the other hand, they use this material as a potential advanced material for many applications. Due to their chemical composition, rice husks can be a source of cellulose fibers and silica nanoparticles. The present text presents the essential characteristics of fibers and nanoparticles that were obtained from the treated shells at the same time. The fibers released from the rice husks have diameters ranging from 5 to 10 μm, the length being in the hundreds of micrometers. The surface of the fibers is not smooth, a sub-micrometer structure is visible, which indicates the potential possibility of further pulping into nanofiber formations. Silica nanoparticles are found on the surface of fibers released from rice husks and beyond. Nanoparticles form clusters of tens of nanometers; the sizes of individual particles are at the level of nanometer units. In the modified hulls, the accompanying technique did not identify the accompanying elements found in the original rice hulls.
Theoretical Prerequisites for Creating a Fire-Extinguishing Solution Based on Water-Absorbing Polymer Ecoflocf-07 for Extinguishing Fires in Ecosystems
Authors: Kodrik Anatolii , Titenko Oleksandr , Zhartovskyi Sergiy , Borisov Andriy , Shvydenko Andriy
Published: July 2022

Extinguishing fires in ecosystems has features compared to extinguishing fires in residential and industrial buildings, due to the composition and structure of combustible materials, which can form many foci of smoldering and have the ability to re-ignite, have a relatively low fire load compared to man-made ones. All this leads to high costs of water for extinguishing, carrying out operations for additional extinguishing of fires that occur after the main extinguishing and sets special requirements for aqueous extinguishing agents for their extinguishing.The paper analyzes the current state of the availability and trends of development in the world and domestic practice of effective water extinguishing agents and technologies for their use. Possible ways to improve recipes and increase the efficiency of fire extinguishing substances are outlined, taking into account, first of all, the criteria of efficiency, economy and environmental friendliness.It is noted that the main direction of increasing the fire extinguishing capacity of water is to create combined fire extinguishing solutions that can combine several methods of extinguishing in one technological operation: cooling, isolation and inhibition, which, other things being equal, reduces fire extinguishing consumption and extinguishing efficiency. An integrated direction of increasing the fire-extinguishing capacity of water can be considered to increase the coefficient of active use of water by reducing the surface tension of the fire-extinguishing solution, increasing the wettability and viscosity of water by introducing appropriate additives, obtaining optimal droplet dispersion.
Immobilization of Dithizone on Coal Fly Ash in Alkaline Medium as Adsorbent of Cd(II) Ion
Authors: Miranda Gina , Wahyuni Endang Tri , Mudasir Mudasir
Published: July 2022

Immobilization of dithizone on activated fly ash (AFA) has been carried out in water medium and used as adsorbent for Cd (II) metal. Some parameters that influences the efficiency of Cd (II) adsorption such as solution pH, adsorbent mass, contact time and initial adsorbate concentration were optimized. The concentration of Cd (II) ion before and after adsorption or desorptiom were determined by AAS. Results of the study suggest that immobilization of dithizone on AFA has successfully accomplished in water/base medium. Adsorption of Cd (II) on AFA and dithizone-immobilized fly ash (DIFA) reaches its maximum value at pH 7 and contact time of 60 minutes using 0.02 g of adsorbent mass. Kinetics and isotherm adsorption studies indicate that the adsorption of Cd (II) on both adsorbent follows pseudo 2nd-order kinetics model and Langmuir isotherm adsorption model. Based on desorption data, it is revealed that the interaction between metal ion Cd (II) and AFA is dominated by ion exchange, while the interaction between Cd (II) metal ion and DIFA mostly occurs via the formation of complexes.
Effect of Ethylene Glycol on Gas Permeability and Selectivity of CH4/CO2 Gas Separation in Zeolite/Alginate Membrane
Authors: Suraya Tiyastiti , Pratiwi Ramadhan Cendy Mega , Suratman Adhitasari
Published: July 2022

Zeolite have been widely used as gas separation material with its promising properties. One of gas separation technology available is using membrane composites because of its various benefits. A synthesis of membrane composites consists of zeolite/alginate then caried out to study the effect of the addition of Ethylene Glycol (EG) to the CH4/CO2 selectivity performance of the membrane. Membrane synthesis varied by its mass ratio of alginate:EG for 1:0, 1:0.25, 1:0.5, 1:1, and 1:2 and evaporated in the room temperature for 72 h. Characterization of the physico/chemical properties was done with various instruments such as FT-IR (Fourier Transform Infra-Red) Spectroscopy, Texture Analyzer, SEM (Scanning Electron Microscopy), and Permeation Test Cell Unit. Addition of EG into the membrane compositions proven to improve the separation performance showed by permeation rate improvement and selectivity value. Gas selectivity separations of CH4/CO2 was also investigated and it can be concluded that the synthesized membranes have several promising properties to be used as CH4/CO2 separations membranes.
Citric and Tartaric Acids Effect on Zn2+ Desorption in the Soil around Textile Industry Area-Yogyakarta
Authors: Oktavianti Fiki Fininda , Natsir Taufik Abdillah , Suherman Suherman
Published: July 2022

Study of physico-chemical properties, adsorption and desorption of Zn using citric acid and tartaric acid on the textile industrial area has been carried out. This study aims to analyze the physico-chemical character of the soil and the content of heavy metals around the textile industry which is suspected of being contaminated by waste, the adsorption isotherm and capacity of Zn, the desorption kinetics of Zn using citric acid and tartaric acid solutions. Soil samples were divided into three sample points based on the location where they were taken, namely sample points I, II and III. The physical and chemical properties of soil were measured, included pH, ash content, electrical conductivity, total organic carbon, cation exchange capacity and content of heavy metals The adsorption capacity was studied by the adsorption of Zn on the soil. Meanwhile, the desorption was studied by using both citric and tartaric acid solution. The results showed that sample I had the highest total organic carbon content of 692.3 mg g-1, and a cation exchange capacity of 42.0 cmol+ kg-1 with a metal content of 735.0 mg kg-1. The maximum adsorption capacity of Zn is 708.7 mg kg-1. The optimum desorption using citric acid occurs at a concentration of 0.6 mol L-1, pH 3 and a time of 7 h, while tartaric acid occurs at a concentration of 0.8 mol L-1, pH 3 and a time of 7 h. Keywords: citric acid, tartaric acid, physico-chemical properties, zinc
Material Parameters Dependency of Stress-Strain Curve Based on the Crystal Plasticity Finite Element Method Incorporating Non-Crystalline Shear Band Mechanism
Authors: Li Wan Jia , Hamada Shigeru
Published: July 2022

The crystal plasticity finite element method (CPFEM) has emerged as an important method for studying materials on a mesoscopic scale. However, a significant obstacle to the application of CPFEM is the numerous material parameters associated with it. This study selected a physics-based CPFEM incorporating the non-crystalline shear band formation mechanism as it can stimulate both work-hardening and strain-softening mechanisms. A three-dimensional smooth specimen model was established to simulate the tensile test. The effects of six fitting crystal plasticity material parameters on the yielding stress, work-hardening behavior, and strain localization behavior are. In addition, the influencing mechanisms are discussed.
Research of the Possibility of Creation of a Multipurpose Complex Additive for Dry Mixtures
Authors: Buryanov Аleksandr F. , Galceva Nadezda A. , Buldyzhova E.N.
Published: July 2022

The main objective of the study was to obtain an effective component composition of a dry building mixture with the use of a complex additive. In this work the specific surface area of the anhydrite binder was determined. It is optimal for providing the mixtures with the required characteristics. The manufacture of experimental compositions was made, according to pre-selected recipes. From them through the performed tests, the most effective was identified. The composition of the modified anhydrite binder was established. It had to match the reference requirements for filling mixtures. The conclusion was formulated about the ability of additives to influence the technological and physical-mechanical properties of the filling mixtures.
Methodology for Determining Parameters of Ozone-Safe Fire Extinguishing Substances
Authors: Umerenkova Kseniya , Borisenko Vitalii , Goroneskul Marianna
Published: July 2022

In this work, the objects of research are individual chemical substances and multicomponent mixtures (gaseous and liquid) used in extinguishing fires.The design of automatic gas fire extinguishing installations is associated with the solution of many scientific and technical issues and is based on the calculation and forecasting of such important data as the thermophysical properties of individual substances and mixtures consisting of them. Phase equilibria parameters data are of particular interest. Also, such data are necessary for scientific and practical research in the creation of the latest, more progressive fire extinguishing agents. It is often difficult or simply impossible to obtain experimentally thermophysical characteristics and parameters of phase equilibria for a wide range of states. Moreover, experimental information is expensive and time-consuming.The work is dedicated to the development of theoretical methods for determining the parameters of phase equilibria of both individual chemicals used to extinguish fires and multicomponent fire-extinguishing mixtures. The use of the proposed techniques makes it possible to obtain numerical values of the required characteristics of fire extinguishing agents by calculation with the required accuracy using a minimum of initial data.The method of mathematical modeling makes it possible to obtain a mathematical model of phase equilibria based on thermodynamic perturbation theory in order to determine the basic functions of the state in the absence of empirical parameters.The proposed method for calculating the parameters of phase diagrams for multi component fire-extinguishing mixtures was used to determine the thermodynamic parameters of the ozone-safe fire-extinguishing composition.
Conceptual Framework for Optimizing the Dispersed Composition of Cement Systems
Authors: Velichko Evgeny , Vatin Nikolay
Published: July 2022

The disadvantage of high-strength multicomponent concretes is the high absolute and specific consumption of the binder per unit of strength. The object of research is multicomponent cement systems. The subject is the composition of multicomponent cement systems in order to significantly increase the concentration of the solid phase per unit volume, as well as strength and durability. The creation of a dense, highly filled solid phase in the form of heterogeneous mineral modifiers of a homogeneous dispersed structure ensures the production of high strength concretes with a low binder content. Theoretical and practical studies have shown that there are only three levels of dispersion of mineral modifiers, functionally related to the spatial and geometric parameters of the clinker component and its own pozzolanic activity, providing strength and other construction and technical properties of multicomponent cement systems at the maximum level. The properties and structure of concrete were studied using two fractions of fine aggregate, granite-gabro crushed stone fr. 5-10 mm, Portland cement class CEM I 42.5N, finely dispersed blast-furnace granular slag, microsilica, highly dispersed fraction of cement, superplasticizer Glenium 430 and high-valence hardening accelerator. Research methods: the shape and size of dispersed particles of the components were determined by a laser analyzer, the mobility of the concrete mixture in accordance with GOST 10181–2014, the strength of concrete in accordance with GOST 10180–2012. The structure of the cement stone was studied using scanning microscopy, thermographic and X-ray phase analysis methods. The strength of concrete with an optimized disperse composition, a superplasticizer and a high-valence hardening accelerator at the age of 28 days after hardening under normal conditions was 128; 137; 163 MPa, with the consumption of multicomponent cement, respectively 650, 700, 750 kg / m3.
Colour as an agent to manage depression, anxiety and stress levels of mobility impaired individuals in healthcare facilities: Insights from a Rehabilitation Centre at Ragama, Sri Lanka
Authors: Hettiarachchi A . A. , Perera U. D. R.
Published: July 2022

Individuals with physical disabilities, especially with impeded mobility have to deal with an array of physical, social, cultural and economic challenges, consequently leading to psychological imbalances, disorders and more inclined to attempt even suicide. Incorporating disabled-friendly design interventions, facilitating optimal healing in their healthcare facilities, is crucial to overcome most of these challenges and ensure their psychological well-being. Within this backdrop, this investigation focused on the impact of interior colours in health care facilities to manage depression, anxiety, and stress levels of disabled individuals. The investigation was executed with reference to wall colour of bedrooms of patients with limb deformities of a selected rehabilitation centre, at Ragama. Three hues (blue, yellow, and green) were tested by installing colour panels on the sidewall of the beds, allowing the patients to be exposed to each colour for three consecutive days. DASS-21 self-report scale was adopted to measure depression, anxiety, and stress levels of the patient. Green colour was found to be significantly supportive in inducing favourable impacts to manage depression, anxiety, and stress levels of patients over blue and yellow. Extending this study to test different tints, shades, and intensities of green colour, incorporating large samples with long-term exposure in an array of health care facilities, is recommended.
Analysing the skill gaps of plant and equipment operators in building construction projects in Sri Lanka
Authors: Waidyasekara K. G. A. S. , Ridmika K. I. , Sandagomika N. M. G. H. , Konara A. N.
Published: July 2022

The construction industry is labour intensive, and hence, skill development of the industry would yield both economic and social returns to the national economy. Among other occupational categories, plant and equipment (P&E) operators in the construction industry have significant importance since the skills and competencies of P&E operators are necessary to be well equipped to serve the higher demand and technological trends. Nevertheless, the available research in the said area is limited. Hence, this study aims to analyse the skill gaps of P&E operators in the perspective of construction professionals in Sri Lankan building construction projects. The study analysed the level of importance and level of satisfaction of P&E operators in the perspective of construction professionals. The research was designed with a quantitative research approach with a questionnaire survey administered among construction professionals with a response rate of 73%. The quantitative analysis depicted that maintenance skills of P&E operators have the highest level of satisfaction by construction professionals with more than 3.77 of mean weighted rating (MWR) and importance with over 3.87 of MWR in the industry. The smartness of handling machines and teamwork were identified as the next two essential and satisfied skills of P&E operators in each category. Out of sixteen skills identified, analytical, mechanical, innovative, and interpersonal skills show a slight skills gap among different categories of P&E operators. Compared to other skills, IT received less importance under each P & E category. Furthermore, the study has concluded the skill gaps in the categories of P&E operators in the Sri Lankan building construction industry. Having identified the gaps, the paper provides the means of measurement to present, which are the most identifiable skills gap of P&E operators in the building construction projects. Propose strategies to enhance the skills of P&E operators to overcome existing issues in the Sri Lankan building construction industry and investigate the skill gap of P&E operators in infrastructure projects can be highlighted as further research areas.
Magnetic therapy in acute and subacute non-specific back pain: Results of an open multicenter study
Authors: Karateev Andrey , Polishchuk Elena , Fesyun Anatoly , Konchugova Tatiana , Filatova Ekaterina , Amirdzhanova Vera , Kulchitskaya Detelina , Potapova Alena , Sukhareva Marina , Lila Alexander , Ivanova Elena P.
Published: July 2022

Magnetic therapy (MT) is a non-drug method that improves the effectiveness of treatment of musculoskeletal pain, including:acute non-specific back pain (NBP). Objective of our study was to evaluate the results of complex treatment of patients with acute/subacute NBP at home using MT. The study group consisted of 339 patients with severe acute/subacute NBP. All patients received nonsteroidal anti-inflammatory drugs (NSAIDs). 166 patients (Group 1) received a course of MT (ALMAG+ device), 173 patients or a control group (Group 2) who did not receive MT. The dynamics of pain was significantly higher in group 1 than in group 2. So, the intensity of pain during movement (NRS) decreased from 7 [5;8] and 7 [5;8] to 0 [0;13] and 2 [1;3] after 1 month. (p<0.001). Significant differences between Groups 1 and 2 were observed in the dynamics of pain at rest and at night, overall health assessment (OHA), and sleep function and disorders. The average duration of NSAIDs use in Group 1 was 8.8±3.9, Group 2 – 11.8±5.7 days (p<0.001). The use of MT increases the effectiveness of treatment of acute/subacute NBP and reduces the need for NSAIDs use.
Studio osservazionale sull’utilizzo di un prodotto in garza contenente Rigenase® e poliesanide nel trattamento della cute perilesionale e delle ulcere venose (<6cm2)
Authors: Petrella Francesco , Nebbioso Giuseppe , Aquino Marcello , Bellisi Mario , Carella Sara , Catalfamo Rosaria Grace , Donateo Diletta , Esposito Pasquale , Gallo Pierluigi , Mezzasalma Maria Grazia , Riccardi Stefano , Romano Concetta , Scanguzzi Alessandro
Published: July 2022

L’Estratto acquoso di Triticum Vulgare (ETV) è un particolare estratto di grano brevettato da Farmaceutici Damor. L’ETV (Rigenase ®) ha mostrato in vitro di possedere importanti effetti di biostimolazione nell’ambito del processo di riparazione tessutale delle lesioni croniche. In questo contesto, è stato sviluppato uno studio osservazionale sugli effetti di un prodotto in garza a base di Rigenase® e poliesanide nel trattamento delle ulcere venose (area <6cm2 e non oltre lo strato dermico) e della cute perilesionale danneggiata anche per causa iatrogena. Sono stati individuati criteri di inclusione ed esclusione ed è stato applicato un protocollo di utilizzo. Lo studio ha dimostrato che il prodotto a base di Rigenase® e poliesanide è efficace nel trattamento delle ulcere venose e della cute perilesionale danneggiata.
Mosquito larva distribution and natural Wolbachia infection in campus areas of Nakhon Ratchasima, Thailand
Authors: Surasiang Thunyarat , Chumkiew Sirilak , Martviset Pongsakorn , Chantree Pathanin , Jamklang Mantana
Published: July 2022

Objective:

To determine the prevalence of mosquito larvae in campus areas and the infection rate of endosymbiotic bacteria, Wolbachia in mosquito larvae.

Method:

The mosquito larvae samples were collected in residential areas and academic buildings of Suranaree University of Technology located in Northeastern Thailand during 2017-2018. Mosquito species identification was performed using GLOBE mosquito protocols and Rattanarithikul & Panthusiri’s keys. The gene encoding for the surface protein of Wolbachia was amplified by PCR and confirmed by DNA sequencing.

Results:

Armigeres sp. is the highest proportion of mosquito larvae followed by Culex spp., Aedes albopictus, Aedes aegypti, and Toxorynchites spp., respectively. Aedes aegypti have breeding sites mostly in the containers found indoors, whereas the main breeding sites of Aedes albopictus were found in both outdoors and indoors. The House Index and Breteau Index for Aedes spp. was more than 5% and 20%, respectively, in both areas, indicating that these areas are dengue sensitive. The highest proportion of Wolbachia infection was found in the larvae of Culex spp. (86.21%), followed by Aedes albopictus (69.23%) and rarely detected in Aedes aegypti (9.09%).

Conclusion:

The present study reported the first natural infection of Wolbachia in mosquito larvae in Thailand. Our result suggested that the mosquito species containing higher proportion of Wolbachia are less likely to be vectors for dengue. Therefore, Wolbachia transfection in mosquito larvae could be applied as a biocontrol for dengue and other mosquito-borne disease prevention.
Constitutional/Conditional Acupuncture
Authors: Eckman Peter
Published: July 2022

A new style of acupuncture, named constitutional/conditional acupuncture (CCA), based on traditional Asian medical practices, was revealed in Kunming in 2017. This method is primarily based on pulse diagnosis, as developed in China, Korea, and India. The basic methods of CCA are briefly described, and a few case results from the 3-day Kunming workshop are presented to reveal the efficacy of CCA.
Comparative Study of Traditional Chinese Medicine and Western Medicine in the Treatment of Coronavirus
Authors: Shen Li , Wang Ke , Zhou Jia
Published: July 2022

Taking the process of treating coronavirus disease 2019 (COVID-19) with Western medicine and traditional Chinese medicine (TCM) as the research object, this article compares the characteristics of Western medicine and TCM from the perspectives of aetiology, pathogenesis, diagnosis, and treatment. Western medicine and TCM each has its own theoretical system. Each has its own exposition in explaining the etiology and pathogenesis of the disease, and each has its own characteristics and advantages in diagnosis and treatment. Integrating TCM and Western medicine can improve the effect of treatment by forming a coordinated traditional Chinese and Western medicine treatment method.
Series of Interpretation on Yellow Emperor's Inner Classic: Two Correspondence between Human and the Heaven: Views from Huang Di Nei Jing (《黄帝内经》 Yellow Emperor's Inner Classic)
Authors: Wang Qingqi
Published: July 2022

This paper introduces the relations between human and the nature in traditional Chinese medicine (TCM). TCM is a science dedicated to studies on laws of human life activities.
Searching for Chinese Medicinal Plants in Greek Classical Medicine: A First Approach
Authors: Touwaide Alain , Appetiti Emanuela
Published: July 2022

This article examines the presence and uses of plants attested in the Chinese medical tradition in the materia medica literature of classical antiquity. It is based on the consultation of the major ancient compilations on materia medica of Chinese medicine and classical antiquity, specifically Bencao Gangmu by Li Shizhen (16th cent.) and De materia medica by Dioscorides (1st cent. A.D.). The article is divided in three major parts: the identification of plants used in the Chinese medical tradition in the medicine of the Mediterranean World in Antiquity; the analysis of the knowledge of these plants and their origin in classical antiquity; a comparison of the uses of these plants in the Bencao Gangmu and De materia medica. It traces the presence of plants of the Chinese medical tradition in Classical antiquity. Although their exact origin was not known, they were reputed at that time to be native to either India or the Black Sea, two areas that correspond to the ending points of the Silk Road. As for their uses in both traditions, they correspond for some plants, whereas they do not for others because either the uses attested in the Chinese tradition were not preserved on the Mediterranean or different uses appeared in the Mediterranean tradition. These differentiated uses hint at both continuities and ruptures, with the latter resulting from the long journey of the plants from the Chinese World to the Mediterranean and, at the same time, attempts aimed to diversify and optimize the applications of non-native medicinal substances.