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showing 10 items of 38174 documents

Physics meets Bohemia Einstein in Bohemia Michael D. Gordin Princeton University Press, 2020. 360 pp.

2020

In Einstein in Bohemia, Michael Gordin seeks to illuminate the elusive sig­nificance of Einstein9s brief tenure in Prague, both for the biography of the famous physi­cist and for the cultural history of Bohemia. An expert in the his­tory of modern physical sciences and of Russian, European, and American history, Gordin pulls together a wealth of infor­mation about the wider context of Einstein9s stay in Prague and of the cultural, scientific, and political history of Bohemia.

symbols.namesakeMultidisciplinaryCultural historyAmerican historyPolitical historysymbolsBiographyContext (language use)EinsteinClassicsScience
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Memories and Legacies of Emmy Noether

2021

Those who knew Emmy Noether best were her fellow Germans in exile, in particular her former colleague in Gottingen, Hermann Weyl.

symbols.namesakePhilosophyHermann weylsymbolsNoether's theoremClassics
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Erzwingt die Quantenmechanik eine drastische Änderung unseres Weltbilds? Gedanken und Experimente nach Einstein, Podolsky und Rosen

1989

Von den Anfangen der Quantenmechanik bis heute gibt es Versuche, sie als statistische Theorie uber Ensembles individueller ‚klassischer’ Systeme zu interpretieren. Die Bedingungen, unter denen Theorien verborgener Parameter zu deterministischen Beschreibungen dieser individuellen Systeme als ‚klassisch’ angesehen werden konnen, wurden von Einstein, Podolsky und Rosen 1935 formuliert: 1. Physikalische Systeme sind im Prinzip separierbar. 2. Zu jeder physikalischen Grose, deren Wert man ohne Storung des betrachteten Systems mit Sicherheit voraussagen kann, existiert ein ihr entsprechendes Element der physikalischen Realitat. Zusammen sind sie, wie Bell 1964 gezeigt hat, prinzipiell unvertragl…

symbols.namesakePhysical realityVerstehenPhilosophyHidden variable theorysymbolsGeneral Physics and AstronomyEinsteinHumanitiesClassical physicsMathematical physicsAnnalen der Physik
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Emmy Noether’s Triumphal Years

2020

When Emmy Noether returned from the September 1929 conference in Prague – where she and Hasse surely spoke about their mutual mathematical interests – she belatedly answered a postcard he had sent here.

symbols.namesakemedia_common.quotation_subjectsymbolsArtNoether's theoremClassicsmedia_common
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Host Searching by Egg Parasitoids: Exploitation of Host Chemical Cues

2010

Insect parasitoids are considered “keystone species” in many ecosystems in terms of biodiversity, ecological impact and economic importance (Vinson 1985, LaSalle and Gauld 1993, Hawkins et al. 1999). In the last decades, several reviews have been published on the relationships among plants, hosts and parasitoids, which reflect a strong interest in these insects both as models for behavioral ecologists and as important organisms for classical and applied biological control programs (Hawkins et al. 1999, Vet 1999, Bale et al. 2008). The majority of these studies have considered the larval parasitoid s, besides the extensive use of egg parasitoids in biological control (Hawkins et al. 1999). I…

synomonesEupelmidaeEulophidaebiologykairomoneZoologybiology.organism_classificationParasitoidAssociative learningHost location BehaviorpheromoneSettore AGR/11 - Entomologia Generale E ApplicataAphelinidaeEncyrtidaeDirect Host-Related Chemical CuePteromalidaeIndirect Host-Related Chemical CueScelionidae
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Complete genome sequence of the methanogenic neotype strain Methanobacterium formicicum MF(T.).

2014

The neotype strain Methanobacterium formicicum MFT (DSM1535), a hydrogenotrophic methanogenic Archaeon, was isolated from a domestic sewage sludge digestor in Urbana (IL, USA). Here, the complete genome sequence of the methanogen is reported. The genome is 2,478,074 bp in size, featuring a GC content of 41.23%. M. formicicum MFT encodes several genes predicted to be involved in adaptation to abiotic stress such as high osmolarity. The strain MFT is of biotechnological importance since M. formicicum strains are often found in production-scale biogas plants and it is suggested as a starter culture for the anaerobic biomethanation process. (C) 2014 Elsevier B.V. All rights reserved.

synthesisMethanogenesisMolecular Sequence DataBioengineeringMethanogenesisApplied Microbiology and BiotechnologyGenomeWaste Disposal FluidMicrobiologyGeneWhole genome sequencingStrain (chemistry)biologyInoculant cultureBase SequenceMethanobacteriumCompatible soluteGeneral MedicineSequence Analysis DNAbiology.organism_classificationBiogas productionMethanogenMethaneGC-contentSludgeGenome BacterialBiotechnologyJournal of biotechnology
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Organocatalytic Oxa-Michael/Michael/Michael/Aldol Condensation Quadruple Domino Sequence : Asymmetric Synthesis of Tricyclic Chromanes

2018

An efficient and highly stereoselective one-pot, four-component synthesis of functionalized tricyclic chromanes has been achieved through an organocatalyzed quadruple domino reaction. The reaction sequence involves an oxa-Michael/Michael/Michael/aldol condensation between alcohols, 2 equiv of acrolein, and nitrochromenes to generate the pharmaceutically important tricyclic chromanes bearing three contiguous stereogenic centers including a chiral tetrasubstituted carbon center in good domino yields (30–70%) and excellent diastereo- and enantioselectivities (>20:1 dr and >99% ee). peerReviewed

synthesisalkoholit (yhdisteet)natural productsStereochemistryasymmetric synthesisluonnontuotteet010402 general chemistry01 natural sciencesBiochemistryDominoStereocenterchemistry.chemical_compoundCascade reactionsynteesiPhysical and Theoretical Chemistryta116chemistry.chemical_classification010405 organic chemistryOrganic ChemistryAcroleindomino reactionsEnantioselective synthesistricyclic chromanes0104 chemical scienceschemistryalcohols (organic compounds)asymmetriaAldol condensationStereoselectivityasymmetryTricyclic
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Bailiaspis (Trilobita) with English affinities from the Mansilla Formation (Cambrian Series 3 of the Iberian Chains; NE Spain)

2020

A new study of the trilobite record in the Mansilla Formation (Iberian Chains, NE Spain) has led to the discovery of the presence of Bailiaspis aff. tuberculata, B. cf. tuberculata and Bailiaspis sp., the first certain citation of this genus in the Mediterranean subprovince. The age of the findings extends from Eccaparadoxides asturianus Zone (upper Leonian) to the lowermost Badulesia tenera Zone (lower Caesaraugustan), which correspond to the upper part of Stage 5 of Cambrian Series 3 and, probably, the lowermost Drumian. The specimens show the cranidial anterior border expanding backwards, forming a plectrum that is characteristic of Bailiaspis. The main characters of the three taxa inclu…

systematic trilobites cambrian stage 5 lowermost drumian (cambrian series 3) biostratigraphybiologyCambrian Series 3PaleontologyBiostratigraphyCambrian Stage 5biology.organism_classificationQE701-760TrilobitePaleontologyTaxonGeographyStage (stratigraphy)GenusPtychagnostusSpanish Journal of Palaeontology
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Early Jurassic (Sinemurian) gastropods from the Lusitanian Basin (west of Portugal)

2020

The Sinemurian gastropod specimens herein studied come from two sources: from museum collections and from samplings in field. The study of the Sinemurian gastropod specimens housed in the collections of the Museu Geológico (Laboratório Nacional de Energia e Geologia), Museu Nacional de História Natural e da Ciência (University of Lisbon), Museu da Ciência (University of Coimbra) and of the Museu de História Natural e da Ciência (University of Porto), has allowed the systematic and taxonomical update of this material. These specimens come mostly from Sinemurian outcrops in S. Pedro de Moel area and Coimbra region, and were collected by Paul Choffat and collaborators in the geological field w…

systematics s. pedro de moel coimbra obtusum oxynotum.GeographyCommon speciesbiologyOutcropPaleontologyPseudomelaniaStructural basinbiology.organism_classificationQE701-760ArchaeologyPaleontologíaSpanish Journal of Palaeontology
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The value of synthetic linear epitope analogues of La/SSB for the detection of autoantibodies to La/SSB; specificity, sensitivity and comparison of m…

1998

SUMMARY In a previous study it was shown that La/SSB contains four linear epitopes, p147–154, p291–302, p301–318 and p349–364. The aim of the present study was to investigate the value of the synthetic epitope analogues of the La/SSB autoantigen for the detection of antibodies to La/SSB, in comparison with recombinant La and fragments of this protein. A total of 122 sera with anti-La/SSB activity, from patients with primary Sjögren's syndrome (pSS) or systemic lupus erythematosus (SLE), were tested in various peptide-based assays. In addition, 62 sera from pSS or SLE patients with other autoantibody specificities and 95 sera from healthy individuals were used as controls. The autoantibody s…

systemic lupusantigenic peptidesMolecular Sequence DataImmunologyDot blotPeptideprimary sjogrens-syndromeBiologyAutoantigensSensitivity and SpecificityEpitopelaw.inventionsjogren's syndromeEpitopesAntigenlawmedicineantibodiesHumansImmunology and AllergyAmino Acid SequenceAutoantibodiesImmunoassaychemistry.chemical_classificationla/ssbcriteriaLinear epitopemedicine.diagnostic_testla ss-bAutoantibodyOriginal Articlessystemic lupus-erythematosusautoantigenRecombinant ProteinsSjogren's SyndromeclassificationRibonucleoproteinschemistryImmunoassayImmunologyRecombinant DNAdiagnostic valueb cell epitopesClinical and Experimental Immunology
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