bluuebunny/crossref_metadata_2025 huggingface dataset:
Depressed 660-km discontinuity caused by akimotoite–bridgmanite transition
Authors: Chanyshev Artem , Ishii Takayuki , Bondar Dmitry , Bhat Shrikant , Kim Eun Jeong , Farla Robert , Nishida Keisuke , Liu Zhaodong , Wang Lin , Nakajima Ayano , Yan Bingmin , Tang Hu , Chen Zhen , Higo Yuji , Tange Yoshinori , Katsura Tomoo
Published: January 2022

The 660-kilometre seismic discontinuity is the boundary between the Earth’s lower mantle and transition zone and is commonly interpreted as being due to the dissociation of ringwoodite to bridgmanite plus ferropericlase (post-spinel transition)1–3. A distinct feature of the 660-kilometre discontinuity is its depression to 750 kilometres beneath subduction zones4–10. However, in situ X-ray diffraction studies using multi-anvil techniques have demonstrated negative but gentle Clapeyron slopes (that is,  the ratio between pressure and temperature changes) of the post-spinel transition that do not allow a significant depression11–13. On the other hand, conventional high-pressure experiments face difficulties in accurate phase identification due to inevitable pressure changes during heating and the persistent presence of metastable phases1,3. Here we determine the post-spinel and akimotoite–bridgmanite transition boundaries by multi-anvil experiments using in situ X-ray diffraction, with the boundaries strictly based on the definition of phase equilibrium. The post-spinel boundary has almost no temperature dependence, whereas the akimotoite–bridgmanite transition has a very steep negative boundary slope at temperatures lower than ambient mantle geotherms. The large depressions of the 660-kilometre discontinuity in cold subduction zones are thus interpreted as the akimotoite–bridgmanite transition. The steep negative boundary of the akimotoite–bridgmanite transition will cause slab stagnation (a stalling of the slab’s descent) due to significant upward buoyancy14,15.
From graphene to graphene oxide: the importance of extended topological defects
Authors: Marsden Alexander J. , Skilbeck Mark , Healey Matthew , Thomas Helen R. , Walker Marc , Edwards Rachel S. , Garcia Natalya A. , Vuković Filip , Jabraoui Hicham , Walsh Tiffany R. , Rourke Jonathan P. , Wilson Neil R.
Published: January 2022

By microscopy, spectroscopy, and modelling we show that extended topological defects are ubiquitous in oxygen functionalised graphene, whether from gas-phase or wet-chemical oxidation, and play a critical role in limiting its reduction and stiffness.
Synthesis and oxidation catalysis of a difluoride-incorporated polyoxovanadate and isolation of active vanadium alkylperoxo species
Authors: Kikukawa Yuji , Sakamoto Yui , Hirasawa Hikari , Kurimoto Yushi , Iwai Hiroya , Hayashi Yoshihito
Published: January 2022

Haloperoxidase-mimetic peroxo-vanadium species on an inorganic support showed catalytic reactivity for the epoxidation and bromination of alkenes. The structures of both native and peroxo forms were determined via single-crystal X-ray analysis.
In situ formation of Co3O4 nanocrystals embedded in laser-induced graphene foam for high-energy flexible micro-supercapacitors
Authors: Ding Xiaohong , Liu Ruilai , Zhao Jingyun , Hu Jiapeng , Wu Jinjin , Zhang Cheng , Lin Jing
Published: January 2022

The cost-effective synthesis of flexible energy storage devices with high energy and power densities is a challenge in wearable electronics.
Ag nanoparticles significantly improve the slow decay brightness of SrAl2O4:Eu2+,Dy3+ by the surface plasmon effect
Authors: Hai Ou , Pei Mengkang , Ren Qiang , Wu Xiulan , Yang Enlong , Xu Dong , Zhu Jianfeng
Published: January 2022

In this study, we explained the enhancement mechanism of Ag/SrAl2O4:Eu2+,Dy3+ by the surface plasmon effect and provided a new method for enhancing the afterglow performance of SrAl2O4:Eu2+,Dy3+.
V2CTX catalyzes polysulfide conversion to enhance the redox kinetics of Li–S batteries
Authors: Han Fengfeng , Jin Qi , Xiao Junpeng , Wu Lili , Zhang Xitian
Published: January 2022

V2CTX with a nanobelt structure was successfully prepared. A separator modified by V2CTX and KB was designed to accelerate redox kinetics and realize long-term cycling stability.
Linking biodegradation kinetics, microbial composition and test temperature – Testing 40 petroleum hydrocarbons using inocula collected in winter and summer
Authors: Sjøholm Karina Knudsmark , Dechesne Arnaud , Lyon Delina , Saunders David M. V. , Birch Heidi , Mayer Philipp
Published: January 2022

Experiments linked temperature, biodegradation kinetics and microbial composition. Biodegradation kinetics and microbial composition were similar for summer and winter inoculum but markedly affected by test incubation.
A gastro-resistant peptide from Momordica charantia improves diabetic nephropathy in db/db mice via its novel reno-protective and anti-inflammatory activities
Authors: Liao Pei-Yung , Lo Hsin-Yi , Liu I-Chen , Lo Lun-Chien , Hsiang Chien-Yun , Ho Tin-Yun
Published: January 2022

Diabetic nephropathy (DN), a principal diabetic microvascular complication, is a chronic inflammatory immune disorder.
Divergent electrolysis for the controllable coupling of thiols with 1,2-dichloroethane: a mild approach to sulfide and sulfoxide
Authors: Ling Fei , Liu Tao , Xu Chao , He Jiaying , Zhang Wangqin , Ling Changwu , Liu Lei , Zhong Weihui
Published: January 2022

Electrocatalysis for the controllable coupling of thiols with DCE was achieved to generate value-added β-chloro-tethered sulfur compounds in batch and flow.
Three-component reaction access to S-alkyl dithiocarbamates under visible-light irradiation conditions in water
Authors: Li Xuehao , Cui Wenwen , Deng Qirong , Song Xiuyan , Lv Jian , Yang Daoshan
Published: January 2022

An environmentally friendly multicomponent reaction protocol to synthesize S-alkyl dithiocarbamate derivatives from Katritzky salt, CS2, and secondary amines under visible light irradiation conditions has been developed.
Conductive gold nanoparticle assembly linked through interactions between the radical cations of ethylene- and propylene-3,4-dioxythiophene mixed tetramer thiolate
Authors: Nishinaga Tohru , Matsuo Kazuki , Koizumi Tomoya , Sugiura Ken-ichi
Published: January 2022

Drop-casting of gold nanoparticle (AuNP) with radical cation moiety of a quaterthiophene derivative provided a conductive film. The interparticle π-dimer was considered to act as effective conduction paths in the AuNP assembly.
Modulation of electrical properties in MoTe2by XeF2-mediated surface oxidation
Authors: Ji Eunji , Kim Jong Hun , Lee Wanggon , Shin June-Chul , Seo Hyungtak , Ihm Kyuwook , Park Jin-Woo , Lee Gwan-Hyoung
Published: January 2022

Transition metal dichalcogenides (TMDs) are promising candidates for the semiconductor industry owing to their superior electrical properties.
In situcontrolled and conformal coating of polydimethylsiloxane foams with silver nanoparticle networks with tunable piezo-resistive properties
Authors: Paghi Alessandro , Corsi Martina , Corso Samuele , Mariani Stefano , Barillaro Giuseppe
Published: January 2022

Thein situcoating of polydimethylsiloxane (PDMS) foams with silver nanoparticles (AgNPs)viadirect AgF reduction enables designing AgNP networks with piezo-resistive properties tunable over 3 orders of magnitude and with the ability to sense subtle physiological signals.
Barium titanate nanoparticle-based disposable sensor for nanomolar level detection of the haematotoxic pollutant quinol in aquatic systems
Authors: Arumugam Balamurugan , Nagarajan Vimalasundari , Annaraj Jamespandi , Ramaraj Sayee Kannan
Published: January 2022

Barium titanate nanoparticles synthesized by a simple co-precipitation method and applied for the electrochemical detection of quinol.
High-voltage aqueous symmetric supercapacitors based on 3D bicontinuous, highly wrinkled, N-doped porous graphene-like ultrathin carbon sheets
Authors: Tao Boran , Zhang Na , Ye Tian , Gao Pengfei , Li Hongda , Xie Yuanmiao , Liu Jinghua , Wang Guofu , Zhang Wenfeng , Chang Haixin
Published: January 2022

Biomass-derived 3D bicontinuous, highly-wrinkled, N-doped porous graphene-like ultrathin carbon sheets for high-performance aqueous symmetric supercapacitor.
A novel electrochemical sensor for the detection of enrofloxacin based on a 3D flower-like metal tungstate-incorporated reduced graphene oxide nanocomposite
Authors: Karuppusamy Naveen , Mariyappan Vinitha , Chen Shen-Ming , Ramachandran Rasu
Published: January 2022

Novel electrochemical sensor for the detection of enrofloxacin based on metal tungstate 3D nanoflower decorated on RGO nanocomposite synthesized by the hydrothermal route. The detection limit of the sensor was 0.021 μM.
Preparation of nickel-bound porous carbon and its application in supercapacitors
Authors: Liu Liangyu , Li Yixin , Meng Yanan , Xue Ying , Yang Bin , Li Bing , Liu Xiaoyang
Published: January 2022

In this study, nickel-bound porous carbon (Ni-PC) was prepared by introducing Ni2+ into dipotassium ethylenediaminetetraacetate (EDTA-2K) derived nitrogen-doped porous carbon (PC) using the ball milling method.
One-pot green synthesis of antimicrobial chitosan derivative nanocomposites to control foodborne pathogens
Authors: Abu Elella Mahmoud H. , Shalan Ahmed Esmail , Sabaa Magdy W. , Mohamed Riham R.
Published: January 2022

This study aimed to show the efficacy of the one-pot green biosynthesis of nanocomposites as effective antimicrobial agents based on a water-soluble biodegradable polysaccharide and silver nitrate (AgNO3).
Immobilization of Ag(0) nanoparticles on quaternary ammonium functionalized polyacrylonitrile fiber as a highly active catalyst for 4-nitrophenol reduction
Authors: Xiao Jian , Wu Zhiying , Li Kunlang , Zhao Zibo , Liu Chunyan
Published: January 2022

Ag(0) nanoparticles were immobilized on various pyridine salt, imidazole salt and quaternary ammonium functionalized polyacrylonitrile fibers (PANFs) to prepare Ag(0)-immobilized fiber catalysts.
Free and self-trapped exciton emission in perovskite CsPbBr3 microcrystals
Authors: Pan Fang , Li Jinrui , Ma Xiaoman , Nie Yang , Liu Beichen , Ye Honggang
Published: January 2022

A broad STE emission band together with a FE emission was found at low temperature in a CsPbBr3 microcrystal sample prepared by CVD method.
Large improvement in thermoelectric performance of pressure-tuned Mg3Sb2
Authors: Li Juan , Zhang Shuai , Han Kai , Sun Bing , Cao Lianzhen
Published: January 2022

Because of the modified electronic band structure, the thermoelectric properties of Mg3Sb2 can be improved by pressure tuning.
Sulphur poisoning, water vapour and nitrogen dilution effects on copper-based catalyst dynamics, stability and deactivation during CO2 reduction reactions to methanol
Authors: Prašnikar Anže , Likozar Blaž
Published: January 2022

A model of methanol synthesis catalyst deactivation dependent on pressure, temperature and composition was developed to enable flexible process optimization in the era of the variable renewable supplies.
Copper-based MOF, Cu3(SDBA)2(HSDBA), as a catalyst for efficient reduction of 4-nitrophenol in the presence of sodium borohydride
Authors: Mansour Manel , Kahri Hamza , Guergueb Mouhieddinne , Barhoumi Houcine , Gutierrez Puebla Enrique , Ayed Brahim , Demirci Umit B.
Published: January 2022

Herein, we report the synthesis of the copper-based MOF, Cu3(SDBA)2(HSDBA), using a solvothermal method.
The holy grail of pyrene-based surface ligands on the sensitivity of graphene-based field effect transistors
Authors: Mishyn Vladyslav , Hugo Adrien , Rodrigues Teresa , Aspermair Patrik , Happy Henri , Marques Leonel , Hurot Charlotte , Othmen Riadh , Bouchiat Vincent , Boukherroub Rabah , Knoll Wolfgang , Szunerits Sabine
Published: January 2022

The use of pyrene–maleimide as an optimal surface ligand for GFET biosensor applications is proposed. With an immersion time of 2 h, cardiac troponin I (cTnI) could be sensed down to 22 ± 1 pg mL−1.
Investigating lithium metal anodes with nonaqueous electrolytes for safe and high-performance batteries
Authors: Zhang Hui , Qi Yabing
Published: January 2022

This review summarizes the research progress on lithium dendrites and SEIs on lithium metal anodes based on various characterization techniques and potential strategies to develop safe lithium metal batteries.
Comment on “Tensional homeostasis at different length scales” by D. Stamenović and M. L. Smith, Soft Matter, 2021, 17, 10274–10285, DOI: 10.1039/D0SM01911A
Authors: Humphrey Jay D. , Cyron Christian J.
Published: January 2022

Assessing potential mechanical homeostasis requires appropriate solutions to the initial-boundary value problems that define the biophysical situation of interest and appropriate definitions of what is meant by homeostasis, including its range.
Reply to the ‘Comment on “Tensional homeostasis at different length scales” by J. Humphrey and C. Cyron, Soft Matter, 2022, 18, DOI: 10.1039/D1SM01151K’
Authors: Stamenović Dimitrije , Smith Michael L.
Published: January 2022

In this Reply to the Comment, we discuss data from the literature which show that the idea that tensional homeostasis in focal adhesions (FAs) of living cells exists over “a central range of FAs”, which is promulgated in the Comment, is not tenable.
A phosphorus modified mesoporous AuRh film as an efficient bifunctional electrocatalyst for urea-assisted energy-saving hydrogen production
Authors: Zhang Mei , Duan Zhongyao , Cui Lin , Yu Hongjie , Wang Ziqiang , Xu You , Li Xiaonian , Wang Liang , Wang Hongjing
Published: January 2022

A phosphorus modified mesoporous AuRh film is constructed via a two-step strategy and serves as a bifunctional electrocatalyst for urea-assisted energy saving hydrogen production.
Understanding the bactericidal mechanism of Cu(OH)2 nanorods in water through Mg-substitution: high production of toxic hydroxyl radicals by non-soluble particles
Authors: Clavier Batiste , Baptiste Téo , Zhadan Antonii , Guiet Amandine , Boucher Fabien , Brezová Vlasta , Roques Christine , Corbel Gwenaël
Published: January 2022

Toxic hydroxyl radicals produced by Cu(OH)2 nanorods completely disinfect water contaminated with S. aureus and E. coli after only 180 min.
Multifunctional high-Znanoradiosensitizers for multimodal synergistic cancer therapy
Authors: Chen Jieyao , Dong Haiyue , Bai Lu , Li Linrong , Chen Sijie , Tian Xin , Pan Yue
Published: January 2022

This review focuses on recent advances in multifunctional high-Znanomaterials for radiotherapeutic-based multimodal synergistic cancer therapy.
Highly effective gene delivery based on cyclodextrin multivalent assembly in target cancer cells
Authors: Liu Yao-Hua , Liu Yu
Published: January 2022

A supramolecular assembly based on cyclodextrins for highly effective gene delivery responded to NIR light and reductase in targeted cancer cells.
Luminescence thermometry using sprayed films of metal complexes
Authors: Marin Riccardo , Millan Natalie C. , Kelly Laura , Liu Nan , Rodrigues Emille Martinazzo , Murugesu Muralee , Hemmer Eva
Published: January 2022

A “spray and measure” technology is provided that entails spraying a mixture of photoluminescent lanthanide (Eu3+ and Tb3+) complexes to form a film whose changes in luminescence contain information about the temperature of the substrate.
Mechanisms of immune aging in HIV
Authors: Chauvin Manon , Sauce Delphine
Published: January 2022

Massive CD4+ T-cell depletion as well as sustained immune activation and inflammation are hallmarks of Human Immunodeficiency Virus (HIV)-1 infection. In recent years, an emerging concept draws an intriguing parallel between HIV-1 infection and aging. Indeed, many of the alterations that affect innate and adaptive immune subsets in HIV-infected individuals are reminiscent of the process of immune aging, characteristic of old age. These changes, of which the presumed cause is the systemic immune activation established in patients, likely participate in the immuno-incompetence described with HIV progression. With the success of antiretroviral therapy (ART), HIV-seropositive patients can now live for many years despite chronic viral infection. However, acquired immunodeficiency syndrome (AIDS)-related opportunistic infections have given way to chronic diseases as the leading cause of death since HIV infection. Therefore, the comparison between HIV-1 infected patients and uninfected elderly individuals goes beyond the sole onset of immunosenescence and extends to the deterioration of several physiological functions related to inflammation and systemic aging. In light of this observation, it is interesting to understand the precise link between immune activation and aging in HIV-1 infection to figure out how to best care for people living with HIV (PLWH).
A loop antenna with quasi‐two sources for circular polarisation
Authors: Hirose K. , Tsubouchi S. , Nakano H.
Published: January 2022

A novel method of exciting a circularly polarised (CP) loop antenna is proposed using the moment method. A horizontal square loop above the ground plane has two corners connected to a vertical, branched feedline with one source. First, the authors show the radiation characteristics of a reference antenna whose corners are excited with two sources having the same amplitudes and a phase difference of 90°. Next, we excite the loop corners with one source using the branched feedline. It is found that when the branch location along the feedline is selected, the antenna radiates a CP wave. The frequency responses of the antenna show that the 3 dB axial‐ratio bandwidth is 12%, where the gain is more than 7.3 dBi. The simulated results are verified with experimental ones.
Network models for nonlocal traffic flow
Authors: Friedrich Jan , Göttlich Simone , Osztfalk Maximilian
Published: January 2022

We present a network formulation for a traffic flow model with nonlocal velocity in the flux function. The modeling framework includes suitable coupling conditions at intersections to either ensure maximum flux or distribution parameters. In particular, we focus on 1-to-1, 2-to-1 and 1-to-2 junctions. Based on an upwind type numerical scheme, we prove the maximum principle and the existence of weak solutions on networks. We also investigate the limiting behavior of the proposed models when the nonlocal influence tends to infinity. Numerical examples show the difference between the proposed coupling conditions and a comparison to the Lighthill-Whitham-Richards network model.
Fully-discrete, decoupled, second-order time-accurate and energy stable finite element numerical scheme of the Cahn-Hilliard binary surfactant model confined in the Hele-Shaw cell
Authors: Yang Xiaofeng
Published: January 2022

We consider the numerical approximation of the binary fluid surfactant phase-field model confined in a Hele-Shaw cell, where the system includes two coupled Cahn-Hilliard equations and Darcy equations. We develop a fully-discrete finite element scheme with some desired characteristics, including linearity, second-order time accuracy, decoupling structure, and unconditional energy stability. The scheme is constructed by combining the projection method for the Darcy equation, the quadratization approach for the nonlinear energy potential, and a decoupling method of using a trivial ODE built upon the “zero-energy-contribution” feature. The advantage of this scheme is that not only can all variables be calculated in a decoupled manner, but each equation has only constant coefficients at each time step. We strictly prove that the scheme satisfies the unconditional energy stability and give a detailed implementation process. Various numerical examples are further carried out to prove the effectiveness of the scheme, in which the benchmark Saffman-Taylor fingering instability problems in various flow regimes are simulated to verify the weakening effects of surfactant on surface tension.
Oilseed and protein crops grown in French organic farms: an overview of cultivation practices for sunflower and soybean
Authors: Le Gall Cécile , Lecomte Vincent , Wagner Dominique
Published: January 2022

The development of organic agriculture in France was steady since 2010 but became stronger since 2014. Like other crops, the cultivated areas of organic soybean and sunflower doubled from 2014 to 2018. With a view to better characterize cultural practices in organic production, Terres Inovia and ITAB (in collaboration with Agence Bio) conducted in 2016 and 2017 a national farmers’ survey. These surveys reveal that sunflower was mainly cultivated over the same types of soil than in conventional production but were integrated in more diversified rotations. The main differences between organic and conventional systems concern sowing date and weed control. Organic sunflower was sown very lately compared to conventional one, which impacted the yield severely. Weed were controlled through ploughing, mechanical weeding and crop rotation and weed control was judged as satisfying by a major part of producers. Concerning soybean, a great difference is the use of irrigation which is almost systematic in conventional but concerned only 50% of cultivated area in organic production. Contrary to sunflower, soybean is integrated in short crop rotation, particularly when it was irrigated. This demonstrated the high profitability of soybean in organic systems. Like for sunflower, weed control done through ploughing, mechanical weeding, and crop rotation and weed control was also judged satisfying; nevertheless, criteria on harvest impurities are more severe and to respect them, organic farmers also use hand weeding in complement. These surveys will be reconducted over the years to be able to follow the changes of cultural practices over the years.
Relationships between mental workload, job burnout, and organizational commitment
Authors: Zanabazar Altanchimeg , Jigjiddorj Sarantuya
Published: January 2022

The business environment has becoming exceptionally unsteady and competitive recently. Information technology advancements and ever changing customer preferences has played a substantial role in an increase of the significance of highly productive, committed and loyal employees. These changes bring both advantages and challenges need to be addressed. The more challenges accelerate, the more issues come up to solve in timely manner. For any organizations, not only taking care of the customers but also employees of the organization should be treated equally taking a better care about their psychological and physical health as well as creating a healthy work environment. The objective of the current research is to study correlations of workload, job burnout and organizational commitment in the case of nurses working in the Health Center of Selenge aimag, Mongolia. According to the results, an increase of mental workload nurses by one unit results in job burnout increases by 0.578 (beta) unit and leads to the decrease of the organizational commitment by 0.437 (beta) unit. Moreover, one-unit increase of job burnout leads to decrease of the organizational commitment by 0.301 (beta) unit.
Exploratory Study on Digital transformation: Capabilities and Expected Performances
Authors: Choi Byungchul , Kim Seunghyun
Published: January 2022

Nowadays many firms encounter the macro-level changes called digital transformation and research on it has drastically increased since 2014. In response to this emerging phenomenon, this study explores how firms prepare for digital transformation and what do they expect from it. More specially, based on the survey from 439 Korean scaleup firm (high-growth firm), we suggest the concepts to necessary capabilities for and expected performance improvement through digital transformation. Our study illustrates that how a firm’s perceptions on those concepts varies upon firm size and industry type. Additionally, our study offers a clue for ‘digital divide’ that can potentially threaten the survival of numerous firms.
Never have a crisis like COVID-19
Authors: Jang Yongseok , Lee Woojin
Published: January 2022

Current circumstances caused by COVID-19 pandemic pose a unique challenge to businesses. How could businesses survive? What strategic options do businesses have when they effectively engage such a challenge? Delving into the inquiry, we explore and investigate different strategic approaches to measure their effectiveness. For the study’s explorative and investigative purposes, our investigation involves a set of tests at both business and corporate levels. Using 224 responses from the leaders and key individuals of Korean startups, we tested the effectiveness of strategic options using the notion of ambidexterity and alliances, and mergers and acquisitions. Using the ambidexterity lens, we found exploitation and exploration indirectly affect firm performances and are still effective under COVID-19. We also found “reinforcing the relationship with existing alliances,” a corporate-level approach, to be effective.
The Effect of Program Genre on Modes of Media Multitasking and Ad Processing
Authors: Bang Hyejin
Published: January 2022

Despite many studies on the effect of MM on advertising, previous studies on MM considered MM a homogenous phenomenon. Further, whether and how media-related factors predict different modes of MM and how this behavior affects ad processing has been unknown. To fill this gap, the purpose of this study was to examine (a) the effect of program-genre on the occurrence of different modes of media multitasking (MM; utilitarian MM vs. hedonic MM) and (b) how different modes of MM influence the way viewers process ads on the primary screen (i.e., computer screen). A lab-based experiment yielded data for testing the hypotheses. The findings suggest that findings suggest that MM can be classified into two distinct modes: utilitarian MM and hedonic MM. Further, the findings show that participants who watched the sitcom tended to engage in a higher amount of utilitarian MM than those who watched the suspenseful drama; however, both groups engaged in a comparable amount of hedonic MM. The findings also indicate that participants who watched the sitcom demonstrated a lower level of ad memory than those who watched the suspenseful drama. The current study provides meaningful theoretical implications. Further, this study provides useful implications for advertising practitioners and marketers.
Evaluation of impact of the Covid-19 pandemic on rental housing prices in the city of Brno between 2020 and 2021
Authors: Junga Petr , Smolinská Radka , Krulický Tomáš , Machová Veronika
Published: January 2022

The aim of the paper is an application of the basic principles in determining rental housing prices and factors that may affect them. In the experimental part, an analysis of rental housing in the city of Brno is performed for the 2020 – 2021 period affected by the covid-19 pandemic. The analysis is processed for individual city districts and divided according to apartment layout. Finally, all outputs are compared and the real estate market development is determined with a focus on the biggest changes and their occurrence.
Des pratiques de soutien par les pairs dans un Groupe d’Entraide Mutuelle
Authors: Le Callonnec Aziliz , Traverso Véronique , Jouin Emilie , Chambon Nicolas
Published: January 2022

En croisant l'analyse d'entretiens à celles de données vidéo enregistrées dans le Groupe d'Entraide Mutuelle (GEM) Envol et Cie à Villeurbanne, l'article identifie et décrit quelques configurationsin situqui permettent de problématiser la mise en place de relations entre pairs, autour des notions de « similarité », « symétrie », « parité ». Ces mises en place sont examinées à partir des positionnements vis-à-vis des pairs aussi bien que des non-pairs (cas d'une réunion avec une animatrice non paire).
The Triglycerides and Glucose Index is Negatively Associated with
Insulin Secretion in Young Adults with Normal Weight
Authors: Simental-Mendía Luis E. , Gómez-Díaz Rita , Wacher Niels H. , Guerrero-Romero Fernando
Published: January 2022

Several studies have supported the usefulness of the triglycerides and glucose
(TyG) index as a surrogate measure of insulin resistance; however, it has not
been evaluated in insulin secretion. The aim of this study was to assess the
association between the TyG index and insulin secretion in young adults with
normal weight. Apparently healthy non-pregnant women and men, aged 18 to 23
years, were enrolled in a cross-sectional study. Overweight, obesity, pregnancy,
smoking, alcohol consumption, diabetes, liver disease, renal disease,
cardiovascular disease, and neoplasia were the exclusion criteria. Normal weight
was defined by a body mass index
(BMI)≥18.5<25.0 kg/m2 and the TyG
index was calculated as the Ln [fasting triglycerides (mg/dl) x
fasting glucose (mg/dl)]/2. A total of 1676 young adults with
normal-weight, 1141 (68%) women, and 535 (32%) men were
enrolled. Of them, 269 (16%) individuals exhibited insulin resistance;
213 (12.7%) women and 56 (3.3%) men. The linear regression
analysis adjusted by gender, BMI, and waist circumference showed a significant
association between the TyG index and HOMA-B (B=−35.90;
95% CI:−68.25 to−3.54, p=0.03) in the overall
population. An additional analysis adjusted by BMI and waist circumference
revealed that the TyG index is significantly associated with HOMA-B in subjects
with and without insulin resistance (B=−104.73; 95%
CI:−204.28 to−5.18, p=0.03 and B=−74.72;
95% CI:−108.04 to−41.40, p<0.001). The results
of this study showed that the TyG index is negatively associated with insulin
secretion in young adults with normal weight.
Incretins Enhance PGF2α-Induced Synthesis of IL-6 and Osteoprotegerin in Osteoblasts
Authors: Hioki Tomoyuki , Kuroyanagi Gen , Fujita Kazuhiko , Sakai Go , Kawabata Tetsu , Kim Woo , Tachi Junko , Matsushima-Nishiwaki Rie , Iida Hiroki , Kozawa Osamu , Tokuda Haruhiko
Published: January 2022

Incretins including glucose-dependent insulinotropic polypeptide (GIP) and glucagon-like peptide-1 (GLP-1), which are secreted from the small intestine after oral food ingestion, are currently well-known to stimulate insulin secretion from pancreatic β-cells and used for the treatment of type 2 diabetes mellitus. We have previously reported that prostaglandin F2α (PGF2α) stimulates the synthesis of interleukin-6 (IL-6) and osteoprotegerin in osteoblast-like MC3T3-E1 cells, and that IL-6 and osteoprotegerin release are mediated through the p44/p42 mitogen-activated protein (MAP) kinase, p38 MAP kinase or stress-activated protein kinase/c-Jun N-terminal kinase (SAPK/JNK) pathways. In the present study, we investigated the effects of incretins including GLP-1 and GIP, on the PGF2α-induced synthesis of IL-6 and osteoprotegerin and examined the detailed mechanism in osteoblast-like MC3T3-E1 cells. We found that GIP and GLP-1 significantly stimulated the PGF2α-induced synthesis of IL-6 in osteoblast-like MC3T3-E1 cells. In addition, GIP and GLP-1 significantly enhanced the PGF2α-induced mRNA expression levels of IL-6. On the other hand, GIP and GLP-1 markedly stimulated the PGF2α-induced synthesis of osteoprotegerin. However, the phosphorylation of p44/p42 MAP kinase, p38 MAP kinase, or JNK induced by PGF2α was not affected by GIP or GLP-1. Therefore, these results strongly suggest that incretins enhance the PGF2α-induced synthesis of IL-6 and osteoprotegerin in osteoblast-like MC3T3-E1 cells. However, these syntheses are not mediated through p44/p42 MAP kinase, p38 MAP kinase, or JNK pathways.
Comparison of Previously Injured Body Regions in Elite Freestyle and
Greco-Roman Wrestlers
Authors: Çebi Mehmet , Imamoğlu Osman , Yamak Bade , Eliöz Murat , Yildiz Muhammed
Published: January 2022

The aim of this study was to compare the injured body regions that elite
Freestyle and Greco-Roman wrestlers suffered from and to determine the
importance of injuries. 41 Freestyle and 51 Greco-Roman wrestlers, who were
practicing in Turkish National Wrestling Team camps, participated in this study.
‘Chi Square’ and student t tests were used in statistical
analyses. When examined injury status and body regions distribution between
Freestyle and Greco-Roman wrestlers, significant difference was found in head
and trunk injuries according to wrestling styles (p<0.05). No difference
was found in upper/lower extremities and lesion/scrape and
friction burns status of the wrestlers according to wrestling style
(p>0.05). There was significant difference in trunk and upper extremity
injuries with respect to weight category (p<0.05 and p<0.001).
Significant difference was also found in nose injuries according to wrestling
styles (p<0.05). When examined wrestling style and upper extremity
injuries according to the number of injuries, there was found significant
difference between two styles in muscle injuries, finger and wrist injuries
(p<0.05). The difference between toe injuries in respect to the
wrestling style was statistically significant (p<0.05). Results:
Greco-Roman wrestlers experienced more injuries in trunk, head and nose compared
to Freestyle wrestlers. Trunk, lower and upper extremity injuries varied
depending on weight categories. Neck, back, lumbar and chest injuries were more
common in Greco-Roman wrestlers. Freestyle wrestlers were more vulnerable to
muscle injuries while Greco-Roman wrestlers were more vulnerable to finger and
wrist injuries. It is recommended to improve some abilities excellently such as
aerobic power, strength, balance and neuro-motor coordination in wrestling.
Techniques should be taught well to the wrestlers, most risky extremities for
injury have to be applied extra training and these extremities should be
protected from injuries by several tapes, bandages or gears during exercise.
Freestyle wrestlers ought to be more careful in diving move. Using ear protector
in addition to preventive measures can be recommended during training in order
to prevent temporal bone fractures and swellings.
Pinch Anatomy of Forehead: An Injection Guide for Forehead Filler Treatment
Authors: Kapoor Krishan M. , Chatrath Vandana , Li Chris Q. , Bertossi Dario
Published: January 2022

Filler injections have become very popular in recent years, and injectors globally use them for facial shaping and reversing age-related changes. Detailed knowledge about important vessels' and tissue planes' anatomy is essential for injectors. While giving the filler injections, injectors tend to gently pinch or pull the tissue fold with the nondominant hand during the procedure. The deformational forces cause some changes in the anatomy of tissue layers held in a pinch. During the pinch and “pinch and pull” maneuver, the crucial vessels in the area can get pulled up in the tissue layers in a pinch or stay in their position unaffected depending on the force applied. The “pinch and pull” maneuver also increases the tissue space for injections by moving the mobile tissue layers away from the fixed ones. The injector can use knowledge of the “‘pinch anatomy” in the forehead to avoid important arteries and place filler in the correct plane. With the understanding of the anatomical changes occurring during the pinched state of tissue layers, filler injection can be performed in the right and safer tissue plane in the forehead. This study reflects level of evidence V.
Cord-Blood Derived Chemistry Reference Values in Preterm Infants for Sodium, Chloride, Potassium, Glucose, and Creatinine
Authors: Stritzke Amelie , Ismail Rana , Rose M. Sarah , Lyon Andrew W. , Fenton Tanis R.
Published: January 2022

Objective International guidelines recommend that preterm infants should be supported to maintain their serum electrolytes within “normal” ranges. In term babies, cord blood values differed in pathological pregnancies from healthy ones.

Study Design We examined cord blood sodium, chloride, potassium, glucose, and creatinine to derive maturity-related reference intervals. We examined associations with gestational age, delivery mode, singleton versus multiple, and prenatal maternal adverse conditions. We compared preterm cord values to term, and to adult reference ranges.

Results There were 591 infants, 537 preterm and 54 term. Preterm cord glucose levels were steady (3.7 ± 1.1 mmol/L), while sodium, chloride, and creatinine increased over GA by 0.17, 0.14 mmol/L/week, and 1.07 µmol/L/week, respectively (p < 0.003). Average preterm cord potassium and chloride were higher than the term (p < 0.05). Compared with adult reference intervals, cord preterm reference intervals were higher for chloride (100–111 vs. 98–106 mmol/L), lower for creatinine (29–84 vs. 62–115 µmol/L), and more variable for potassium (2.7–7.9 vs. 3.5–5.0 mmol/L) and sodium (130–141 vs. 136–145 mmol/L). Cesarean section was associated with higher potassium and lower glucose, multiple births with higher chloride and creatinine and lower glucose, and SGA with lower glucose.

Conclusion Cord blood values varied across the GA range with increases in sodium, chloride, and creatinine, while glucose remained steady. Average preterm reference values were higher than term values for potassium and chloride. Preterm reference values differed from published adults' reference values. The changes across GA and by delivery mode, SGA, and being a multiple, which may have direct implications for neonatal care and fluid management.

Key Points
Virtual Sprint Outpatient Electronic Health Record Training and Optimization Effect on Provider Burnout
Authors: English Eden F. , Holmstrom Heather , Kwan Bethany W. , Suresh Krithika , Rotholz Stephen , Lin Chen-Tan , Sieja Amber
Published: January 2022

Objectives This study aimed to develop a virtual electronic health record (EHR) training and optimization program and evaluate the impact of the virtual model on provider and staff burnout and electronic health record (EHR) experience.

Methods UCHealth created and supported a multidisciplinary EHR optimization and training program, known as the Epic Sprint Program. The Sprint Team conducted dozens of onsite Sprint events over the course of several years prior to the pandemic but transitioned to a fully virtual program and successfully “sprinted” 21 outpatient clinics from May to December 2020. Core program components of group and 1:1 training, workflow analysis, and new or adjusted EHR build were unchanged from the onsite model. Pre- and post-Sprint surveys provided detailed, objective data about EHR usability, EHR proficiency, job satisfaction, and burnout.

Results The EHR Net Promoter Score (NPS), a likelihood to recommend metric, increased by 39 points (−3 pre and 36 post; p < 0.001) for providers and 29 points (8 pre and 37 post; p = 0.001) for staff post-Sprint. Positive provider (NPS = +53) and staff (NPS = +47) NPS scores indicated a high likelihood to recommend the Sprint Program. Post-Sprint surveys also reflect an increase in providers (10%; p = 0.04) and staff (9%; 0.13) who indicated “no burnout” or “did not feel burned out.”

Discussion The UCHealth Sprint Team transitioned this comprehensive, enterprise level initiative from an onsite model to a fully virtual EHR training and optimization program during the first few months of the novel coronavirus disease (COVID-19) pandemic. Despite this change in program delivery, survey data clearly demonstrated improved EHR satisfaction, a high likelihood to recommend a sprint to a friend or colleague, and a trend toward burnout reduction in providers and staff.

Conclusion Changing an existing on-site EHR optimization program to a purely virtual format can be successful, and this study showed improved provider and staff EHR satisfaction with reduced burnout.
Flecked Calcifications in Scalp Tumors: Two Cases of Giant Ulcerated Trichilemmal Cysts
Authors: Krishnan Prasad , Ray Abhijit
Published: January 2022

In the article, the classical radiological findings in trichilemmal cysts of the scalp are described.
Magnetic refrigeration down to 0.2 K by heavy fermion metal YbCu4Ni
Authors: Shimura Yasuyuki , Watanabe Kanta , Taniguchi Takanori , Osato Kotaro , Yamamoto Rikako , Kusanose Yuka , Umeo Kazunori , Fujita Masaki , Onimaru Takahiro , Takabatake Toshiro
Published: January 2022

Ytterbium-based heavy-fermion metals have recently attracted attention as magnetic refrigeration materials generating low-temperature environments below 1 K without using expensive 3He. YbCu4Ni is known to exhibit a giant value of specific heat divided by temperature C/T∼7.5J/K2mol below 0.2 K, implying high potential of magnetic refrigeration. In this paper, we report magnetic refrigeration down to 0.2 K from the initial temperatures of 1.8 K by YbCu4Ni ingots installed in a commercial 4He refrigerator. The performance is consistent with that evaluated by our DC magnetization and specific heat measurements. Our study demonstrates the high performance of YbCu4Ni without precious metals as a magnetic refrigeration material with moderately high density of Yb atoms (∼0.02Ybmol/cm3) and high thermal conductivity.
Active visual mapping system for digital operation environment of bridge crane
Authors: Zhao Keyuan , Zhou Qicai , Xiong Xiaolei , Zhao Jiong
Published: January 2022

Bridge cranes must be able to sense their working environment to achieve autonomous operation. An active visual mapping system is presented in this research to adapt the measurement range based on the crane’s operational state. The rotation angles of the two servos are computed based on the crane’s speed so that the binocular camera is deflected and a greater field of view is gained in front, improving the crane’s safety. An experimental platform is developed to simulate the operation process of the active vision 3D mapping system, and experiments are carried out using the approach proposed in this paper. The experimental results indicate that the technology can successfully enhance the mapping scope of the bridge cranes’ digital operating environment and improve crane operation safety.
Role of barriers in the airborne spread of virus-containing droplets: A study based on high-resolution direct numerical simulations
Authors: Cavaiola M. , Olivieri S. , Guerrero J. , Mazzino A. , Rosti M. E.
Published: January 2022

State-of-the-art direct numerical simulations are exploited to study the role of barriers on the airborne spread of virus-containing droplets. Our study is motivated by recent findings pointing to the key role of turbulence in dictating the final fate of virus-containing droplets in violent human exhalations. Here, all active scales of motion have been explicitly taken into account, including their interplay with the droplet evaporation process occurring once droplets are emitted in a drier ambient air, and accounting for the time-varying droplet inertia due to the water loss via evaporation. We show that barriers commonly used to mitigate the airborne spread of the virus cause nontrivial dynamical effects influencing the final reach of the virus-containing droplets, not always being beneficial to this aim. These conclusions do depend on the relative humidity of the ambient condition, and in particular whether the ambient humidity is above or below the so-called efflorescence relative humidity. Our findings provide a physically based answer to the question on how effective barriers are to protect people from airborne virus transmission in indoor environments.
Sagnac interferometer for time-resolved magneto-optical measurements
Authors: Heo Hyeokjun , Kim Taeho , Jeong Yungi , Park Hangyeol , Jang Joonho
Published: January 2022

We introduce a time-resolved magneto-optical measurement technique based on a zero-area Sagnac interferometer. By replacing a continuous wave light source to a pulsed one, temporal resolution of hundreds of picoseconds is achieved. Because two lights passing through a Sagnac loop always travel the same optical path length, the interference from the phase modulation and Kerr rotation occurs in a pulse mode. For illustration of the apparatus, we present ferromagnetic resonance of a Permalloy film caused by a magnetic field pump. The instrument still possesses the favorable properties of a Sagnac interferometer, such as rejection of all the reciprocal effects, and shows 1μrad/Hz sensitivity at a 3 µW optical power in the pulse mode.
Effect of O2 on partial discharge and decomposition characteristics of C5F10O/CO2/O2 gas mixture
Authors: Han Pu , Xia Yalong , Tang Ju , Wei Zhuo , Xie Shijun , Zhang Chenmeng , Xiao Song
Published: January 2022

This paper investigates the effect of O2 on the partial discharge (PD) and decomposition characteristics of C5F10O/CO2/O2 gas mixture employed as an eco-friendly gas insulating medium. We found that the insulation performance of the C5F10O/CO2/O2 gas mixture is less degraded as the content of O2 is less than 4%. However, PDIV+ is significantly reduced, and the discharge repetition rate increases drastically when the O2 content exceeds 4%. The PD decomposition products of C5F10O/CO2/O2 mainly include CF4, C2F6, C3F8, C3F6, CF2O, C2F6O3, and C3F7H. The addition of 2% O2 has a strong inhibitory effect on the generation of CF4, C2F6, C3F6, C3F8, CF2O, and C2F6O3. This work provides guidance for the application of the C5F10O/CO2/O2 gas mixture.
Terahertz annular antenna driven with a short intense laser pulse
Authors: Bukharskii N. , Kochetkov Iu. , Korneev Ph.
Published: January 2022

Generation of terahertz radiation by an oscillating discharge, excited by short laser pulses, may be controlled by geometry of the irradiated target. In this work, an annular target with a thin slit is considered as an efficient emitter of secondary radiation when driven by a short intense laser pulse. Under irradiation, a slit works as a diode, which is quickly filled by dense plasmas, closing the circuit for a traveling discharge pulse. Such a diode defines the discharge pulse propagation direction in a closed contour, enabling its multiple passes along the coil. The obtained oscillating charge efficiently generates multi-period quasi-monochromatic terahertz waves with a maximum along the coil axis and controllable characteristics.
Fluidics of an immiscible drop impact onto a hot oil film
Authors: Kumar Rupak , Lokesh  , Das Arup Kumar
Published: January 2022

Droplet rapid phase transition during its impact over a hot immiscible oil film is studied experimentally, which is of paramount importance in fire extinguishing, forensics, internal combustion engines, and various accident scenarios in the industries. The impact of a cold methanol droplet on a hot mustard oil film and its repercussions are analyzed from high-speed images for a temperature range relevant from the thermodynamic and heat transfer perspective. The interfacial temperature of the hot oil film has been varied through the saturation temperature, Leidenfrost point, superheat limit, and critical temperature, for methanol. A regime map has been proposed to characterize fluidic observations on Weber number and non-dimensional average temperature plane. Violent cavity crater explosions have been observed above a critical Weber number ranging 70–80 for average interfacial temperature higher than the critical point of methanol due to direct contact between the droplet and base of the petridish.
Neuropilin-1, a myeloid cell-specific protein, is an inhibitor of HIV-1 infectivity
Authors: Wang Shumei , Zhao Li , Zhang Xiaowei , Zhang Jingjing , Shang Hong , Liang Guoxin
Published: January 2022

Significance

Macrophages and dendritic cells represent an important target for HIV-1 replication in vivo as they serve both as a vehicle for virus dissemination throughout the body and a viral reservoir. However, myeloid cells can support persistent replication of HIV-1 and, in contrast to infected T cells, demonstrate lower productivity. Using proteomics, we discovered that NRP-1 is a host restriction factor that inhibits HIV-1 from infecting macrophages and dendritic cells. NRP-1 is incorporated into the HIV-1 virion particle to inhibit its ability to attach to target cells in a viral envelope glycoprotein-independent manner. Overall, these results provide insights into the ability of myeloid lineage cells to utilize NRP-1 to interfere with HIV-1 infection.