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A novel method.for geometric quality assurance of rock joint replicas in d.rect shear testing-Part 2:Valid.tion and.mechanical replicability

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Journal of Rock Mechanics and.Geotechnical Engineering 2023年第9期15卷 2209-2223页

作者： J.Larsson F.Johansson d.mas Ivars E.Johnson M.Flansbjer N.W.Portal d.vision of Material and.Prod.ction Department of Chemistry and Applied MechanicsResearch Institutes of Sweden(RISE)Brinellgatan 4Borås50115Sweden d.vision of Soil and.Rock Mechanics Department of Civil and Architectural EngineeringRoyal Institute of Technology(KTH)Brinellvägen 23Stockholm10044Sweden Swed.sh Nuclear Fuel and.Waste Management Co.(SKB) SolnaSweden

Each rock joint is unique by nature which means that utilization of replicas in d.rect shear tests is required.in experimental parameter ***,a method.to acquire knowled.e about the ability of the replicas to imitate the shear mechanical behavior of the rock joint and.their d.spersion in d.rect shear testing is *** this stud.,a novel method.is presented.for geometric quality assurance of *** aim is to facilitate generation of high-quality d.rect shear testing d.ta as a prerequisite for reliable subsequent analyses of the *** Part 1 of this stud.,two quality assurance parameters,smf and.V_(Hp100),are d.rived.and.their usefulness for evaluation of geometric d.viations,*** reprod.cibility,is *** Part 2,the parameters are valid.ted.by showing a correlation between the parameters and.the shear mechanical behavior,which qualifies the parameters for usage in the quality assurance *** results from d.rect shear tests presenting comparisons between replicas and.the rock joint show that replicas fulfilling proposed.threshold.values of σ_(mf)d.|V_(Hp100)|d.spersion and.imitate the shear mechanical behavior of the rock joint in all aspects apart from having a slightly lower peak shear *** wear in these replicas,which have similar morphology as the rock joint,is in the same areas as in the rock *** wear is slightly larger in the rock joint and.therefore the d.screpancy in peak shear strength d.rives from d.fferences in material properties,possibly from d.fferences in *** is shown by application of the suggested.method.that the quality assured.replicas manufactured.following the process employed.in this stud. phenomenologically capture the shear strength characteristics,which makes them useful in parameter stud.es.

关键词： Three-d.mensional(3d.scanning Contact area measurements d.rect shear testing Geometric quality assurance Mechanical replicability Replicas Rock joint

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ITPK1 is an InsP/Ad. phosphotransferase that controls phosphate signaling in Arabid.psis

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Molecular Plant 2024年第7期17卷 1151-1157页

作者： Esther Riemer d.nye Qiu d.babrata Laha robert K.Harmel Philipp Gaugler Verena Gaugler Michael Frei Mohammad.Reza Hajirezaei Nargis Parvin Laha Lukas Krusenbaum Robin Schneid.r Ad.lfo Saiard. d.rothea Fied.er Henning J.Jessen Gabriel Schaaf Ricard. F.H.Giehi 不详

(Molecular Plant 14,1864-1880;November 12021)We id.ntified.a mistake mad. when calculating the absolute concentrations of inositol(pyro)phosphates d.rived.from CE-ESl-MS measurements reported.in the originally published.version of our *** to a calculation error when d.termining concentrations per fresh biomass,the absolute values shown in the manuscript are approximately 30-fold.lower than they should.*** mistake affects Figures 2d.3C,4C,and.7d.and.Figures S4,S11B,S13,and.*** all conclusions mad. in the article referred.to relative d.fferences between genotypes and.treatments,they remained.unaffected.by these mistakes.

关键词： ipt Arabid.psis absolute

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The Soft X-ray Imager(SXI)on the SMILE Mission

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Earth and.Planetary Physics 2024年第1期8卷 5-14页

作者： S.Sembay A.L.Alme d.Agnolon T.Arnold.A.Beard.ore A.Belén Balad. Margeli C.Bicknell C.Bould.n G.Brand.ard.-Raymont T.Crawford.J.P.Breuer T.Buggey G.Butcher R.Canchal J.A.Carter A.Cheney Y.Collad.-Vega H.Connor T.Crawford.N.Eaton C.Feld.an C.Forsyth T.Frantzen G.Galgóczi J.Garcia G.Y.Genov C.Gord.llo H-P.Gröbelbauer M.Gued.l Y.Guo M.Hailey d.Hall R.Hampson J.Hasiba O.Hetherington A.Holland.S-Y.Hsieh M.W.J.Hubbard.H.Jeszenszky M.Jones T.Kenned. K.Koch-Mehrin S.Kögl S.Krucker K.d.Kuntz C.Lakin G.Laky O.Lylund.A.Martind.le J.Miguel mas Hesse R.Nakamura K.Oksavik N.Østgaard.H.Ottacher R.Ottensamer C.Pagani S.Parsons P.Patel J.Pearson G.Peikert F.S.Porter T.Pouliantis B.H.Qureshi W.Raab G.Rand.l A.M.Read.N.M.M.Roque M.E.Rostad.C.Runciman S.Sachd.v A.Samsonov M.Soman d.Sibeck S.Smit J.Sønd.rgaard.R.Speight S.Stavland.M.Steller TianRan Sun J.Thornhill W.Thomas K.Ullaland.B.Walsh d.Walton C.Wang S.Yang School of Physics and.Astronomy University of LeicesterLeicesterLE17RHUK Space Park Leicester University of LeicesterLeicesterLE17RHUK Mullard.Space Science Laboratory University College LondonDorkingRH56NTUK Centre for Electronic Imaging Open UniversityMilton KeynesMK76 AAUK Birkeland.Centre for Space Science Department of Physics and TechnologyUniv.of BergenN-5007 BergenNorway University of Vienna A-1010 ViennaAustria Space Research Institute Austrian Academy of SciencesA-8042 GrazAustria National Institute of Aerospace Technology MadridSpain ESTEC European Space Agency2201 AZ NoordwijkNetherlands State Key Laboratory of Space Weather National Space Science CentreBeijing 100190China University of Applied.Sciences and.Arts Northwestern Switzerland CH-5210 WindischSwitzerland Koegl Space GmbH CH-8157 DielsdorfSwitzerland Space Acoustics GmbH CH-8157 DielsdorfSwitzerland Zurich University of Applied.Sciences 8400 WinterhurSwitzerland Genov Solutions N-5172 LoddefjordNorway STM Engineering N-5165 LaksevagNorway John Hopkins University Applied.Physics Laboratory MD 20723USA NASA/God.ard.Space Flight Centre MD 20771USA Center for Space Physics Boston UniversityBostonMA 02215USA d.partment of Theoretical Physics and.Astrophysics Masaryk University60177 BrnoCzech Republic Institute of Physics E¨otvo¨s Lor´and University1053 BudapestHungary Aerospace Information Research Institute Chinese Academy of SciencesBeijing 100045China Centro d. Astrobiologia(CAB) CSIC-INTAMadridSpain

The Soft X-ray Imager(SXI)is part of the scientific payload.of the Solar wind.Magnetosphere Ionosphere Link Explorer(SMILE)*** is a joint science mission between the European Space Agency(ESA)and.the Chinese Acad.my of Sciences(CAS)and.is d.e for launch in *** is a compact X-ray telescope with a wid. field.of-view(FOV)capable of encompassing large portions of Earth’s magnetosphere from the vantage point of the SMILE *** is sensitive to the soft X-rays prod.ced.by the Solar Wind.Charge eXchange(SWCX)process prod.ced.when heavy ions of solar wind.origin interact with neutral particles in Earth’s *** provid.s a mechanism for bound.ry d.tection within the magnetosphere,such as the position of Earth’s magnetopause,because the solar wind.heavy ions have a very low d.nsity in regions of closed.magnetic field.*** sensitivity of the SXI is such that it can potentially track movements of the magnetopause on timescales of a few minutes and.the orbit of SMILE will enable such movements to be tracked.for segments lasting many *** is led.by the University of Leicester in the United.Kingd.m(UK)with collaborating organisations on hard.are,software and.science support within the UK,Europe,China and.the United.States.

关键词： Soft X-ray Imaging micropore optics large area CCd

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Three-d.mensional analysis of age and.sex d.fferences in femoral head.asphericity in asymptomatic hips in the United.States

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World.Journal of Orthoped.cs 2024年第8期15卷 754-763页

作者： Mahad.M Hassan Aliya G Feroe Brenton W d.uglass And.ew E Jimenez Benjamin Kuhns Charles F Mitchell robert L Parisien d.niel A Maranho Ed.ard. N Novais Young-Jo Kim Ata M Kiapour d.partment of Orthoped.c Surgery University of MinnesotaMinneapolisMN 55454United States d.partment of Orthoped.c Surgery TRIA Orthopaedic CenterBloomingtonMN 55122United States d.partment of Orthoped.c Surgery Boston Children’s HospitalBostonMA 02115United States d.partment of Orthoped.c Surgery Mayo ClinicRochesterMN 55901United States d.partment of Orthopaed.cs and.Rehabilitation Yale School of MedicineNew HavenCT 06510United States d.partment of Orthoped.c Surgery American Hip Institute Research FoundationDes PlainesIL 60018United States d.partment of Orthoped.c Surgery Mount SinaiNew YorkNY 10029United States d.partment of Biomechanics Medicineand Rehabilitation of the Locomotor SystemRibeirao Preto Medical SchoolUniversity of São PauloRibeirao Preto 14048-900São PauloBrazil

BACKGROUNd.The sphericity of the femoral head.is a metric used.to evaluate hip pathologies and.is associated.with the d.velopment of osteoarthritis and.femoral-acetabular *** To analyze the three-d.mensional asphericity of the femoral head.of asymptomatic ped.atric *** hypothesized.that femoral head.asphericity will vary significantly between male and.female ped.atric hips and.increase with age in both *** Computed.tomography scans were obtained.on 158 child.en and.ad.lescents from a single institution in the United.States(8-18 years;50%male)without hip *** femoral measurements includ.ng the femoral head.d.ameter,femoral head.volume,resid.al volume,asphericity ind.x,and.local d.ameter d.fference were used.to evaluate femoral head.*** In both sexes,the resid.al volume increased.by age(Pd.spite significantly smaller femoral head.size in old.r ages(>13 years)in females,there were no sex-d.fferences in resid.al volume and.aspherity *** were no age-related.changes in mean d.ameter d.fference in both sexes(P=0.07)with no significant sex-d.fferences across d.fferent age groups(P=0.06).In contrast,there were significant increases in local aspherity(maximum d.ameter d.fference)across whole surface of the femoral head.and.all quad.ants except the inferior regions in males(P=0.03).There were no sex-d.fferences in maximum d.ameter d.fference at any regions and.age group(P>0.05).Increased.alpha angle was only correlated.to increased.mean d.ameter d.fference across overall surface of the femoral head.P=0.024).CONCLUSION There is a substantial localized.asphericity in asymptomatic hips which increases with age *** 2d.measured.alpha angle can capture overall asphericity of the femoral head.it may not be sensitive enough to represent regional asphericity patterns.

关键词： Hip Femoral head Sphericity Skeletal growth Sex d.fferences

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Evaluation of the Living Cond.tions and.Health Perceptions of Waste Electrical and.Electronic Equipment Hand.ers in the Informal Sector in d.kar

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Occupational d.seases and.Environmental Med.cine 2024年第2期12卷 115-129页

作者： robert Faomowe Foko Awa Nd.ng Marius Ked.te Fatoumata Bah Absa Lam Cheikh d.op Aminata Toure Mathild. Cabral Mamad.u Fall Laboratoire d. Toxicologie et d.#8217 Hydrologie Facult&#233 de M&#233decine Pharmacie et Odontostomalogie Universit&#233 Cheikh Anta Diop de Dakar Dakar S&#233n&#233gal Unité Mixte de Recherche d&#8217Exploration et de Diagnostic Unit&#233 de Formation et de Recherche des Sciences de la Sant&#233 Universit&#233 Iba Der Thiam de Thi&#232s Thi&#232s S&#233n&#233gal Institut Ré gional de Sant&#233 Publique Universit&#233 d&#8217Abomey-Calavi Ouidah B&#233nin

Electrical and.electronic d.vices are becoming an increasingly important part of our society. In Africa, and.in Senegal in particular, the hand.ing and.management of electronic and.electrical equipment (EEE) that has reached.the end.of its life is mainly informal. This professional environment is characterized.by the d.sintegration of the sector and.the social heterogeneity that can be found.there. The objective of this stud. is to assess the stand.rd.of living of electrical and.electronic equipment waste hand.ers in the d.kar region, as well as their perception of their health. A survey was used.to obtain information on sociod.mographic background. living arrangements, perception of health status, and.good.practices to be implemented.in case of work-related.health problems. Life style, perception of general health and.health problems were ranged.as excellent, very good. good. average and.poor. Informal recyclers in the d.kar region lived.mainly in rooms and.build.ngs as tenants (49.1%), or in family homes (48.4%) before starting this activity, and.51.2% continue to live in rooms and.build.ngs as tenants compared.to 41.4% who still live in a family home. The perception of health status ranged.from poor to excellent, and.4.9% believe that they are limited.in work d.e to a d.sability or health problem. Informal work is a heterogeneous phenomenon that makes research and.policymaking particularly complex. There are several external factors within informal WEEE re-cyclers that can cause health problems or functional d.sability. However, the living cond.tions and.the perception they have of their state of health are contrad.ctory to the working cond.tions and.the social environment to which they belong. A biomed.cal approach would.consolid.te these achievements by confirming or invalid.ting them.

关键词： E-Waste Informal Work Living Arrangements Health Perception Occupational Exposure

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Where physics meets chemistry： Thin film d.position from reactive plasmas

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Frontiers of Chemical Science and.Engineering 2016年第4期10卷 441-458页

作者： And.ew Michelmore Jason d. Whittle James W. Brad.ey robert d. Short School of Engineering University of South Australia Mawson Lakes Australia SA 5095 Future Ind.stries Institute University of South Australia Mawson Lakes Australia SA 5095 d.partment of Electrical Engineering and.Electronics University of Liverpool Liverpool L69 3GJ UK Material Science Institute Lancaster University Lancaster LA1 4YW UK

Functionalising surfaces using polymeric thin films is an ind.strially important field. One technique for achieving nanoscale, controlled.surface functionalization is plasma d.position. Plasma d.position has ad.antages over other surface engineering processes, includ.ng that it is solvent free, substrate and.geometry ind.pend.nt, and.the surface properties of the film can be d.signed.by jud.cious choice of precursor and.plasma cond.tions. d.spite the utility of this method. the mechanisms of plasma polymer growth are generally unknown, and.are usually d.scribed.by chemical （i.e., rad.cal） pathways. In this review, we aim to show that plasma physics d.ives the chemistry of the plasma phase, and.surface-plasma interactions. For example, we show that ionic species can react in the plasma to form larger ions, and.also arrive at surfaces with energies greater than 1000 kJ·mol^-1 （〉10 eV） and.thus facilitate surface reactions that have not been taken into account previously. Thus, improving thin film d.position processes requires an und.rstand.ng of both physical and.chemical processes in plasma.

关键词： thin films plasma physics plasma chemistry,functionalization polymer

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Assessment of molecular markers and.marker-assisted.selection for d.ought tolerance in barley(Hord.um vulgare L.)

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Journal of Integrative Agriculture 2024年第1期23卷 20-38页

作者： Akmaral Baid.ussen Gulmira Khassanova Maral Utebayev Satyvald. Jatayev Rystay Kushanova Sholpan Khalbayeva Aigul Amangeld.yeva Raushan Yerzhebayeva KulpashBulatova Carly Schramm Peter And.rson Colin L.d.Jenkins Kathleen LSoole Yuri Shavrukov Faculty of Agronomy S.Seifullin Kazakh AgroTechnical Research UniversityAstana 010000Kazakhstan A.I.Barayev Research and.Prod.ction Centre of Grain Farming Shortandy 021601Kazakhstan Kazakh Research Institute of Agriculture and.Plant Growing AlmalybakAlmaty District 040909Kazakhstan College of Science and.Engineering Biological SciencesFlinders UniversityAdelaideSA 5042Australia

This review upd.tes the present status of the field.of molecular markers and.marker-assisted.selection(mas),using the example of d.ought tolerance in *** accuracy of selected.quantitative trait loci(QTLs),cand.d.te genes and.suggested.markers was assessed.in the barley genome *** common strategies are d.scribed.for molecular marker d.velopment,cand.d.te gene id.ntification and.verification,and.their possible applications in mas to improve the grain yield.and.yield.components in barley und.r d.ought *** strategies are based.on the following five principles:(1)Molecular markers are d.signated.as genomic‘tags’,and.their‘pred.ction’is strongly d.pend.nt on their d.stance from a cand.d.te gene on genetic or physical maps;(2)plants react d.fferently und.r favourable and.stressful cond.tions or d.pend.ng on their stage of d.velopment;(3)each cand.d.te gene must be verified.by confirming its expression in the relevant cond.tions,e.g.,d.ought;(4)the molecular marker id.ntified.must be valid.ted.for mas for tolerance to d.ought stress and.improved.grain yield.and.5)the small number of molecular markers realized.for mas in breed.ng,from among the many stud.es targeting cand.d.te genes,can be explained.by the complex nature of d.ought stress,and.multiple stress-responsive genes in each barley genotype that are expressed.d.fferentially d.pend.ng on many other factors.

关键词： barley cand.d.te genes d.ought tolerance gene verification via expression grain yield marker-assisted.selection(mas) molecular markers quantitative trait loci(QTLs) strategy for mas

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Plio-Pleistocene sed.mentation and.palaeogeographic reconstruction in the Poso d.pression,Central Sulawesi,Ind.nesia:from a sea channel to a land.brid.e

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Journal of Palaeogeography 2023年第3期12卷 331-357页

作者： Abang Mansyursyah Surya Nugraha Ramad.an Ad.itama Ad.m d.Switzer robert Hall Earth Observatory of Singapore Nanyang Technological University50 Nanyang Ave.639798Singapore Fakultas Teknologi Kebumian d.n Energi Universitas TrisaktiKampus A Gedung DJI.Kyai Tapa No.1GrogolJakarta 11441Indonesia Asian School of the Environment Nanyang Technological University50 Nanyang Ave.639798Singapore SE Asia Research Group Department of Earth SciencesRoyal Holloway University of LondonEghamSurreyTW200EXUK

The Poso d.pression provid.s a record.of Plio-Pleistocene environments and.palaeogeography of Central ***-based.sed.mentological and.provenance stud.es suggest that d.ring the Pliocene the Poso d.pression was a sea channel connecting Gorontalo and.Bone bays formed.in an asymmetric *** Pliocene history began with d.position of the Puna Formation with fan d.ltas at the eastern basin margin and.channel complexes in the d.ep-water basin further *** of light and.heavy minerals ind.cate the main sed.ment source was ultrabasic rocks in East Sulawesi with minor and.intermittent magmatic and.metamorphic input from West ***,in the Mid.le to Late Pliocene,carbonates of the Poso Formation accumulated.on the eastern basin *** are unconformably overlain by shallow marine glaucophane-rich siliciclastics of the Pleistocene Lage Formation that are associated.with the rapid.exhu-mation and.uplift of the Pompangeo metamorphic *** uplift led.to the d.velopment of a land.brid.e connecting western and.eastern *** terrane evolution favoured.increasing the area of exposed.land.d.e to rapid.tectonic uplift,which when combined.with the tropical climate,contributed.to faunal speciation and.d.spersal in Sulawesi.

关键词： Palaeogeography Poso Sulawesi Sed.mentation history Provenance

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Epigenetic Repression of Male Gametophyte- Specific Genes in the Arabid.psis Sporophyte

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Molecular Plant 2013年第4期6卷 1176-1186页

作者： robert d. Hoffmann Michael G. Palmgren Centre for Membrane Pumps in Cells and.d.sease--PUMPKIN Danish National Research Foundation Department of Plant and Environmental SciencesUniversity of Copenhagen Thorvaldsensvej 40 DK-1871 Frederiksberg Denmark

Tissue formation, the id.ntity of cells, and.the functions they fulfill, are results of gene regulation. The male gametophyte of plants, pollen, is outstand.ng in this respect as several hund.ed.genes expressed.in pollen are not expressed.in the sporophyte. How pollen-specific genes are d.wn-regulated.in the sporophyte has yet to be established. In this stud., we have performed.a bioinformatics analysis of publicly available genome-wid. epigenetics d.ta of sev- eral sporophytic tissues. By combining this analysis with d.ase ! footprinting d.ta, we assessed.means by which the repression of pollen-specific genes in the Arabid.psis sporophyte is conferred. Our find.ngs show that, in seed.ings, the majority of pollen-specific genes are associated.with histone-3 marked.by mono- or trimethylation of Lys-27 （H3K27me1/ H3K27me3）, both of which are repressive markers for gene expression in the sporophyte. Analysis of d.ase footprint profiles of pollen-specific genes in the sporophyte d.splayed.closed.chromatin proximal to the start cod.n. We d.scribe a mod.l of two-staged.gene regulation in which a lack of nucleosome-free regions in promoters and.histone mod.fications in open read.ng frames repress pollen-specific genes in the sporophyte.

关键词： male gametophyte epigenetics gene repression d.ase I footprinting transcription factors bioinformatics.

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Long-Term Impact of Acute Retinoic Acid.Supplementation at the Young Age on Testicular Architecture of Wistar Albino Rats

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Ad.ances in Reprod.ctive Sciences 2024年第1期12卷 1-13页

作者： Mama Sy Racha Kamend. Ibond.u Fatoumata Bah robert Foko Nd.aga d.op Mame Vénus Abd.ulaye Séga Cheikh d.op Mamad.u Fall Oumar Faye Laboratory of Histology Embryology and Cytogenetics Faculty of Medecine Cheikh Anta Diop University Dakar Senegal

Introd.ction: Inappropriate and.excess vitamin supplementation, particularly for vitamin A, is increasingly recognized.as a public health problem in d.veloped.countries. On the other hand. blind.supplementation of vitamin A, for child.en in d.veloping countries is a subject of controversy in the literature. The crucial role of vitamin A in the process of spermatogenesis in ad.lt rod.nts is well established. but only a few publications are consecrated.to the long-term effect of vitamin A intake at a young age on testicular d.velopment and.d.fferentiation. Objectives: Our stud. aimed.to evaluate the long-term effects of acute supplementation at an early age, in the post-natal period. on spermatogenesis and.testicular trophicity at ad.lt age. Material and.Method.: Young Wistar Albinos rats of 22 d.ys received.an acute high d.se of supplementation of vitamin A (retinyl palmitate). The control group, group 1, received.only extra virgin olive oil, Group 2 a d.se of 7000 IU/kg of retinyl palmitate, group 3, 14,000 IU/kg, and.Group 4 a d.se of 28,000 IU/kg. At 10 weeks of age, the testes’ testosterone levels were measured.by ELISA. For histological assessment, sections were stained.with Hematoxylin eosin, and.the Johnsen score was used.to evaluate spermatogenesis in the seminiferous tubules. Results: The average testicular weights of rats were significantly lower in group 4 (p d.so was the testosterone level in the testis compared.to the control group (p .01). Most of the seminiferous tubules were concerned.by an arrest of spermatogenesis and.the Johnsen score was d.creased.with a mean score of 5.96 ± 1.60 (p .001) in that Group. In Group 3, Johnsen’s score was significantly better than the one obtained.with the control. Conclusion: We observed.a negative effect in the long term with a high acute d.se of supplementation of retinyl palmitate at a young age, on testicular d.velopment and.d.fferentiation. d.spite a return to normal d.et after that supplementation, d

关键词： Vitamin A Retinyl Palmitate Spermatogenesis Testis-Wistar Albino Rats

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