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Chinese Optics Letters 2021年第3期19卷 46-52页

作者： Christian R.Petersen Mikkel B.Lotz Christos Markos Getinet Woyessa David Furniss Angela B.Seddon rafael j.Taboryski O.Bang DTU Fotonik Technical University of DenmarkDK-2800 Kgs.LyngbyDenmark DTU Nanolab Technical University of DenmarkDK-2800 Kgs.LyngbyDenmark NORBLIS DK-2830 VirumDenmark Mid-Infrared Photonics Group University of NottinghamNottingham NG72RDUK NKT Photonics DK-3460 Bi「ke「0dDenmark

Thermal nanoimprinting is a fast and versatile method for transferring the anti-reflective properties of subwavelength nanostructures onto the surface of highly reflective substrates, such as chalcogenide glass optical fiber end faces. In this paper, the technique is explored experimentally on a range of different types of commercial and custom-drawn optical fibers to evaluate the influence of geometric design, core/cladding material, and thermo-mechanical properties. Up to32.4% increased transmission and 88.3% total transmission are demonstrated in the 2–4.3 μm band using a mid-infrared(IR) supercontinuum laser.

关键词： nanoimprint lithography anti-reflection hot imprint chalcogenide glass optical fiber mid-infrared supercontinuum

Plant latent defense response to microbial non-pathogenic factors antagonizes compatibility

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National Science Review 2022年第8期9卷 26-34页

作者： Yu Yang Shenglan Chen Xiaoxuan Wu Li Peng j.an I.Vílchez Richa Kaushal Xiaomin Liu Sunil K.Singh Danxia He Fengtong Yuan Suhui Lv rafael j.L.Morcillo Wei Wang Weichang Huang Mingguang Lei j.an-Kang Zhu Paul W.Paré Huiming Zhang Shanghai Center for Plant Stress Biology Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences University of Chinese Academy of Sciences Shanghai Chenshan Botanical Garden Department of Chemistry and Biochemistry Texas Tech University

Unlike microbe-associated molecular patterns(MAMPs) that are readily targeted by host immunity,microbial non-pathogenic factors(NPFs) appear negligible as they do not elicit defense. Little is known about whether and how NPFs may be monitored by hosts to control compatibility. Herein, a forward genetic screening isolated an Arabidopsis mutant with a loss of plant-rhizobacteria mutualism, leading to the disclosure of a plant latent defense response(LDR) to NPFs. The activation of LDR in the mutant,named rol1 for regulator of LDR 1, is triggered by several non-pathogenic volatile organic compounds and antagonizes plant compatibility with the beneficial bacterium Bacillus amyloliquefaciens GB03. The activation of LDR in rol1 is mediated through the prokaryotic pathway of chloroplastic lipid *** rol1 root microbiome showed a reduced proportion of the Bacillaceae family. We propose that, parallel to the forefront immunity to MAMPs, LDR to certain NPFs provides a hidden layer of defense for controlling compatibility with commensal or beneficial microbes.

关键词： microbial non-pathogenic factors latent defense response compatibility plant-beneficial bacteria chloroplastic lipid biosynthesis

Learning Matter:Materials Design with Machine Learning andAtomistic Simulations

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Accounts of Materials Research 2022年第3期3卷 343-357页

作者： Simon Axelrod Daniel Schwalbe-Koda Somesh Mohapatra j.mes Damewood Kevin P.Greenman rafael Gómez-Bombarelli Department of Chemistry and Chemical Biology Harvard UniversityCambridgeMassachusetts 02138United States Department of Materials Science and Engineering Massachusetts Institute of TechnologyCambridgeMassachusetts 02139United States

CONSPECTUS:Designing new materials is vital for addressing pressing societal challenges in health,energy,and *** combination of physicochemical laws and empirical trial and error has long guided material design,but this approach is limited by the cost of experiments and the difficulty of deriving complex guiding *** space of hypothetical materials to be considered is incredibly large,and only a small fraction of possible compounds can ever be tested *** computational techniques of atomistic simulation and machine learning(ML)offer an avenue to rapidly invent new materials and navigate this enormous ***,they can be used to infer complex design principles and identify high-quality candidates more rapidly than trial-and-error *** this Account,we review our group’s recent contributions to simulation and ML for materials *** begin by discussing the numerical representation of materials for use in *** can be produced through deterministic algorithms,learnable encodings,or physics-based methods and lead to vector,graph,and matrix *** describe how these different approaches offer distinct material-and application-specific *** provide demonstrations from our own work on small-molecule drugs,macromolecules,dyes,electrolytes,and *** several cases,we show how the appropriate representation led to guiding principles that facilitated experimental materials ***,we highlight the development of ML methods for enhancing atomistic *** advances help to improve simulation accuracy and expand the time and length scales that can be *** include differentiable atomistic simulations in which ensemble-averaged quantities are differentiated with respect to system parameters,and novel autoregressive methods for enhanced sampling of challenging physical *** developments include learnable coarse-grained models,which can accelerate molecula

关键词： zeolite differentiable latter

Characterization of Tars from the Thermal Processing of Baganuur and Tavan Tolgoi Coals from Mongolia, Using SEC, UV-F, IR and Mass Spectrometry

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Advances in Chemical Engineering and Science 2013年第2期3卷 130-144页

作者： Barnasan Purevsuren Yadamsuren Davaaj.v Sanj.a Batbilig j.rgalsaikhan Namkhainorov Fatma Karaca Trevor j. Morgan Patricia Alvarez Rodriguez Feng H. Tay Sergei Kazarian Alan A. Herod rafael Kandiyoti Institute of Chemistry and Chemical Technology Mongolian Academy of Sciences Ulaanbaatar Mongolia

Tars from two Mongolian coals (Tavan Tolgoi and Baganuur) produced by simple distillation have been characterized using size exclusion chromatography (SEC) with elution in both 1-methyl-2-pyrrolidinone (NMP) and a mixed solvent (NMP and chloroform), UV-fluorescence in chloroform and NMP, gas chromatography (GC), mass spectrometry (GC-MS, probe-MS and LD-MS with thin layer chromatography) and infra-red spectroscopy. The SEC chromatograms using NMP and the solvent mixture NMP: chloroform indicates that similar conclusions can be drawn from using either eluent. The synchronous UV-fluorescence spectra were shifted to longer wavelengths in chloroform solution than in NMP and chloroform may be the better solvent for these tars prepared without extensive secondary thermal treatment. Infra-red spectra indicated differences between the two coal tars that reflected their different ranks, with more oxygenate groups in the lower rank Baganuur coal. Mass spectrometry (GC-MS and probe-MS) of both coal tars confirmed the presence of aliphatic components as well as aromatics and the relatively extensive alkylation of aromatics. Molecular mass ranges indicated for Baganuur tar by SEC compared well with the mass range by LD-MS although the LD-MS extended to higher mass values. The high mass fractions of the tars were revealed by fractionation by thin layer chromatography with the relevant sections of the developed plates inserted directly into the mass spectrometer;laser desorption was directly from the surface of the plate. LD-MS of the unfractionated samples failed to detect the high mass components because of mass discrimination effects. The high mass components were carried over in the distillation by mass transfer of vapours into the condenser.

关键词： Mongolian Coals Tar Preparation Characterization Laser Desorption Mass Spectrometry Thin Layer Chromatography

Seasonal variation in native hydraulic conductivity between two deciduous oak species

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j.urnal of Plant Ecology 2020年第1期13卷 78-86页

作者： Dilia Mota-Gutiérrez Guadalupe Arreola-González rafael Aguilar-Romero Horacio Paz j.annine Cavender-Bares Ken Oyama Antonio Gonzalez-Rodriguez Fernando Pineda-García Facultad de Biología Universidad Michoacana de San Nicolás de Hidalgo.Edificio RCiudad UniversitariaGral.Francisco J.Múgica S/N A-1Felicitas de Río58030 MoreliaMichoacánMexico Escuela Nacional de Estudios Superiores Unidad MoreliaUniversidad Nacional Autónoma de México.Antigua Carretera a Pátzcuaro 8701Ex-Hacienda de San Joséde La Huerta58190 MoreliaMichoacánMexico Instituto de Investigaciones en Ecosistemas y Sustentabilidad Campus MoreliaUniversidad Nacional Autónoma de México.Antigua Carretera a Pátzcuaro 8701Ex-Hacienda de San Joséde La Huerta58190 MoreliaMichoacánMexico Deparment of Ecology Evolution and BehaviorUniversity of MinnesotaSaint PaulMN 55108USA

Aims Mechanisms of plant drought resistance include both tolerance and *** vulnerability to embolism and turgor loss point are considered traits that confer tolerance,while leaf abscission and deciduousness characterizes the avoidance *** these mechanisms are thought to trade-off expressing a continuum among species,little is known on how variation in the timing and duration of leaf shedding in response to drought affect the relationship between xylem and leaf *** the present study,we explored the extent to which drought tolerance differs between two oak(Quercus)species that exhibit different leaf shedding ***,we predicted that *** Trel.,which loses leaves at the end of the dry season(late-deciduous)and is thus exposed to a greater risk of cavitation,would be more drought tolerant and more conservative in its water use than *** Liebm.,which loses its leaves for only a short period of time in the middle of the dry season(brevideciduous).Methods The study was conducted in central Mexico in a single population of each of the two oak species,separated from each other by a distance of 1.58 km,and by an altitudinal difference of 191 *** deserticola(late deciduous)is more frequent down slope,while ***(brevideciduous)tends to occur at higher elevations along the *** assessed seasonal differences(rainy versus dry season)in native stem hydraulic conductivity,and tested for variation in xylem vulnerability to cavitation,leaf water use and leaf turgor loss point between the two *** Findings The two oak species did not differ in traits conferring drought tolerance,including xylem vulnerability to embolism,leaf turgor loss point,or stomatal ***,both species had different performance during the dry season;the brevideciduous species had lower negative impact in the xylem function than the late-deciduous ***,seasonal changes in plant physiological performance

关键词： Quercus hydraulic conductivity embolisms leaf phenology

Analysis of three-dimensional effects in laser driven thin-shell capsule implosions

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Matter and Radiation at Extremes 2019年第5期4卷 55-66页

作者： rafael Ramis Benoit Canaud Mauro Temporal Warren j.Garbett Franck Philippe E.T.S.I.Aeronauticay del Espacio Universidad Politecnica de MadridP.Cardenal Cisneros 3E-28040MadridSpain CEA DAMDIF91297 Arpajon CedexFrance CentredeMathematiques etdeLeurs Applications ENSCachanandCNRS61 Av.duPresident Wilson94235CachanCedexFrance AWE plc AldermastonReadingBerkshire RG74PRUnited Kingdom

Three-dimensional(3D)hydrodynamic numerical simulations of laser driven thin-shell gas-filled microballoons have been carried out using the computer code MULTI-3D[Ramis et al.,*** 21,082710(2014)].The studied configuration corresponds to experiments carried at the ORION laser facility[Hopps et al.,Plasma *** Fusion 57,064002(2015)].The MULTI-3D code solves single-temperature hydrodynamics,electron heat transport,and 3D ray tracing with inverse bremsstrahlung absorption on unstructured Lagrangian *** emphasis has been placed on the genuine 3D effects that are inaccessible to calculations using simplified 1D or 2D *** include the consequences of(i)a finite number of laser beams(10 in the experimental campaign),(ii)intensity irregularities in the beam crosssectional profiles,(iii)laser beam misalignments,and(iv)power imbalance between *** consequences of these imperfections have been quantified by post-processing the numerical results in terms of capsule nonuniformities(synthetic emission and absorption images)and implosion efficiency(convergence ratio and neutron yield).Statistical analysis of these outcomes allows determination of the laser tolerances that guarantee a given level of target performance.

关键词： consequences absorption dimensional

Proximal-type epithelioid sarcoma of the vulva initially misdiagnosed as Bartholin cyst: A case report

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Gynecology and Obstetrics Clinical Medicine 2022年第3期2卷 157-159页

作者： rafael Everton Assunçao Ribeiro da Costa Luis Felipe Rodrigues Brandao de Barros Raimundo Geronimo da Silva j.nior Eugenio de Sa Coutinho Neto Eid Gonçalves Coelho Carlos Eduardo Coelho de Sa Health Science Center State University of PiauíTeresinaPIBrazil Health Science Center Federal University of PiauíTeresinaPIBrazil Oncology High Complexity Assistance Unit Dr.Everardo Aragao Macroregional Hospital in CaxiasCaxiasMABrazil

Dear editor,Vulvar sarcomas are rare and represent 1%–3%of cancers in this region.1 Leiomyosarcoma is the most common type of vulvar *** contrast,epithelioid sarcoma(ES)is extremely rare,accounting for around 1%of soft-tissue vulvar *** the ESs of the vulva,proximal variants tend to have a more aggressive clinical course,in comparison to distal variants.2 The treatment of choice in proximal-type ES of the vulva is surgical resection,usually with surgical margins greater than 2 *** to the extreme rarity of these malignancies,clear algorithms for adj.vant treatment of these tumors have still not been *** and/or chemotherapy may be indicated in some cases.

关键词： sarcoma chemotherapy initially

Li2SiO3 fast microwave-assisted hydrothermal synthesis and evaluation of its water vapor and C02 absorption properties

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Particuology 2016年第1期14卷 129-137页

作者： j. Ortiz-Landeros R. Lopez-j.arez I.C, Romero-Ibarra H. Pfeiffer H. Balmori-Ramirez C. Gomez-Yanez Department of MetaUurgical and Materials Engineering National Polytechnic Institute ESIQIE-IPN UPALM Campus Instituto Politecnico NacionalAvenue 07738 Mexico City Mexico Materials Research Institute Morelia Campus National Autonomous University of Mexico Old Pdtzcuaro road 8701 58190 Morelia Michoacdn Mexico Department of Chemistry Metropolitan Autonomous University Iztapalapa Campus San Rafael Atlixco Avenue 186 09340 Mexico City Mexico Materials Research Institute National Autonomous University of Mexico Cd Universitaria Campus 04510 Mexico City Mexico

A series of lithium metasilicate （Li2SiO3） powder materials has been successfully synthesized by the microwave-assisted hydrothermal route using lithium hydroxide and tetraethyl-orthosilicate-derived sol precursors. Ceramic powders were obtained under hydrothermal conditions of autogenous pressure in the presence of a nonionic surfactant. The production of pure and well-crystallized Li2 SiO3 using very short reaction times at low temperatures was shown by X-ray diffraction, scanning electron microscopy, and N2 adsorption-desorption analyses. Synthesized Li2SiO3 particles were nanocrystalline and exhibited different morphologies and specific surface areas depending on the synthesis conditions. Additionally, the capability of selected Li2SiO3 samples to absorb H20 and CO2 was evaluated via thermogravimet- ric analyses by varying the temperature, carrier gas, and water vapor concentration. Li2SiO3 particles exhibited interesting textural and morphological characteristics that make them suitable for use as a CO2 absorbent and which suggest that they also have the potential to be used in other applications.

关键词： CO2 capture Lithium metasilicate Hydrothermal synthesis Thermal analysis

Metabolic syndrome occurrence in university students from México City: The binomium HDL/waist circumference is the maj.r prevalence factor

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Open j.urnal of Preventive Medicine 2012年第2期2卷 177-182页

作者： j. rafael j.ménez-Flores Miguel Murguía-Romero M. Isabel Mendoza-Ramos Santiago Sigrist-Flores Norma Y. Rodríguez-Soriano Lilia I. Ramírez-García Ramiro j.sús-Sandoval M. Araceli álvarez-Gasca Esther Orozco rafael Villalobos-Molina A. René Méndez-Cruz Carrera de Médico Ciruj.no FES Iztacala UNAM Tlalnepantla México Carrera de Psicología FES Iztacala UNAM Tlalnepantla México Posgrado en Ciencias Biológicas FES Iztacala UNAM Tlalnepantla México Unidad de Biomedicina FES Iztacala UNAM Tlalnepantla México Universidad Autónoma de la Ciudad de México Ciudad de México México

Obj.ctive: Metabolic Syndrome (MetS) is the leading cause to develop type 2 diabetes worldwide. We examined associations of MetS components early in life, and their use as risk factors of acquiring MetS. Method: We used an international definition of MetS. Subj.cts were categorized into “Healthy”/“Not Healthy”, altered parameters are low HDL-cholesterol, large waist circumference (WC), hypertriacylglycerolemia, hypertension, and hyperglycemia, in 32 combinations (2^5) with two values (altered/not altered). MetS was identified with three or more altered parameters. Results: A total of 3424 students (ages 17 - 24 years) participated in the survey, and 2475 were “Not Healthy” showing at least 1 parameter altered;from them 49.6% showed low blood HDL either alone or combined, 38.2% had altered waist circumference either alone or combined;while 18.1% showed hypertriacylglycero-lemia either alone or combined. Hypertension and hyperglycemia were the lowest in frequency. Conclusion: We propose that the binomium HDL/ Waist Circumference is the main prevalence factor to develop MetS in the asymptomatic young population, followed by hypertriacylglycerolemia which together define MetS;while hypertension and hyperglycemia seem to occur later in MetS.

关键词： HDL/Waist Circumference Metabolic Syndrome Mexican University Students

Evaluation of Peppermint Leaf Flavonoids as SARS-CoV-2 Spike Receptor-Binding Domain Attachment Inhibitors to the Human ACE2 Receptor: A Molecular Docking Study

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Open j.urnal of Biophysics 2022年第2期12卷 132-152页

作者： Marcelo Lopes Pereira j.nior rafael Timóteo de Sousa j.nior Georges Daniel Amvame Nze William Ferreira Giozza Luiz Antônio Ribeiro j.nior Department of Electrical Engineering University of Brasília Brasília Brazil Institute of Physics University of Brasília Brasília Brazil

Virtual screening is a computational technique widely used for identifying small molecules which are most likely to bind to a protein target. In the present work, a molecular docking study is carried out to propose potential candidates for preventing the RBD/ACE2 attachment. These candidates are sixteen different flavonoids present in the peppermint leaf. Results showed that Luteolin 7-O-neohesperidoside is the peppermint flavonoid with a higher binding affinity regarding the RBD/ACE2 complex (about -9.18 Kcal/mol). On the other hand, Sakuranetin presented the lowest affinity (about -6.38 Kcal/mol). Binding affinities of the other peppermint flavonoids ranged from -6.44 Kcal/mol up to -9.05 Kcal/mol. The binding site surface analysis showed pocket-like regions on the RBD/ACE2 complex that yield several interactions (mostly hydrogen bonds) between the flavonoid and the amino acid residues of the proteins. This study can open channels for the understanding of the roles of flavonoids against COVID-19 infection.

关键词： Coronavirus Sars-CoV-2 Peppermint Flavonoids RBD/ACE2 Inhibitors