Search results for "paradox"

showing 4 items of 164 documents

Data from: Phylogenomics of Lophotrochozoa with consideration of systematic error

2016

Phylogenomic studies have improved understanding of deep metazoan phylogeny and show promise for resolving incongruences among analyses based on limited numbers of loci. One region of the animal tree that has been especially difficult to resolve, even with phylogenomic approaches, is relationships within Lophotrochozoa (the animal clade that includes molluscs, annelids, and flatworms among others). Lack of resolution in phylogenomic analyses could be due to insufficient phylogenetic signal, limitations in taxon and/or gene sampling, or systematic error. Here, we investigated why lophotrochozoan phylogeny has been such a difficult question to answer by identifying and reducing sources of sys…

Helobdella robustaGlycera dibranchiataMytilus edulisAnnelidaEntalina tetragonaLeptochiton asellusCerebratulus marginatusLoxosomella cf. viviparaGraptacme eboreaLineus longissimusmedicine and health careClymenella torquataRuditapes philippinarumNucella lapillusHaliotis rufescenslong branch attractionPlatyzoaBarentsia gracilisPriapulus caudatusLineus ruberAlitta virenssaturationProchaetoderma californicumPinctada fucataSchistosoma mansoniLife sciencesPolyzoaCephalothrix hongkongensisRhyssoplax olivaceusLoxosoma pectinaricolaPhascolosoma agassiziiAdineta vagaDrosophila melanogasterEntoproctaBugula neritinaPhoronis vancouverensisMedicineNovocrania anomalaVillosa lienosaDaphnia pulexSagitta sp.Pectinaria gouldiiSymbion americanusNuculana pernulaSepia esculentaEnucula tenuisSolemya velumLineus lacteusTubulanus polymorphus-StruckGnathostomula paradoxaBoccardia proboscideaMacellomenia schanderiLaevipilina hyalinaTubulanus polymorphus-HalanychBryozoaPomatoceros lamarckiiSepioteuthis lessonianaParanemertes peregrinaMalacobdella grossaHemithiris psittaceaLeptochiton rugatusTrochozoaBrachionus plicatilisSpathoderma clenchiLaqueus californicusPatella vulgataLottia giganteaCrepidula fornicataPhoronidaAplysia californicaGlottidia pyramidataPhoronis psammophilaSchmidtea mediterraneaAlexandromenia crassaBrachiopodaMegadasys sp.Octopus vulgarisCapitella teletaNeomenia carinatacompositional heterogeneityNemerteaPhenacolepas pulchellaGadila tolmieiMolluscaMacrodasys sp.Crassostrea gigasPedicellina cernuaTaenia pisiformisDosidicus gigasCephalothrix linearisSpiralia
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Data from: Phylogenomics of Lophotrochozoa with consideration of systematic error

2021

Phylogenomic studies have improved understanding of deep metazoan phylogeny and show promise for resolving incongruences among analyses based on limited numbers of loci. One region of the animal tree that has been especially difficult to resolve, even with phylogenomic approaches, is relationships within Lophotrochozoa (the animal clade that includes molluscs, annelids, and flatworms among others). Lack of resolution in phylogenomic analyses could be due to insufficient phylogenetic signal, limitations in taxon and/or gene sampling, or systematic error. Here, we investigated why lophotrochozoan phylogeny has been such a difficult question to answer by identifying and reducing sources of sys…

Helobdella robustaGlycera dibranchiataMytilus edulisAnnelidaEntalina tetragonaLeptochiton asellusCerebratulus marginatusLoxosomella cf. viviparaGraptacme eboreaLineus longissimusmedicine and health careClymenella torquataRuditapes philippinarumNucella lapillusHaliotis rufescenslong branch attractionPlatyzoaBarentsia gracilisPriapulus caudatusLineus ruberAlitta virenssaturationProchaetoderma californicumLife SciencesPinctada fucataSchistosoma mansoniPolyzoaCephalothrix hongkongensisRhyssoplax olivaceusLoxosoma pectinaricolaPhascolosoma agassiziiAdineta vagaDrosophila melanogasterEntoproctaBugula neritinaPhoronis vancouverensisMedicineNovocrania anomalaVillosa lienosaDaphnia pulexSagitta sp.Pectinaria gouldiiSymbion americanusNuculana pernulaSepia esculentaEnucula tenuisSolemya velumLineus lacteusTubulanus polymorphus-StruckGnathostomula paradoxaBoccardia proboscideaMacellomenia schanderiLaevipilina hyalinaTubulanus polymorphus-HalanychBryozoaPomatoceros lamarckiiSepioteuthis lessonianaParanemertes peregrinaMalacobdella grossaHemithiris psittaceaLeptochiton rugatusTrochozoaBrachionus plicatilisSpathoderma clenchiLaqueus californicusPatella vulgataLottia giganteaCrepidula fornicataPhoronidaAplysia californicaGlottidia pyramidataPhoronis psammophilaSchmidtea mediterraneaAlexandromenia crassaBrachiopodaMegadasys sp.Octopus vulgarisCapitella teletaNeomenia carinatacompositional heterogeneityNemerteaPhenacolepas pulchellaGadila tolmieiMolluscaMacrodasys sp.Crassostrea gigasPedicellina cernuaTaenia pisiformisDosidicus gigasCephalothrix linearisSpiralia
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Paradoxical arterial priapism: post-traumatic monolateral low penile perfusion and curvature associated to contro-lateral arterious-cavernous acerati…

2006

Poster for IX Congress of the European Society for Sexual Medicine. Vienna, Dicember 3th – 6th 2006

paradoxal arterial priapismSettore MED/36 - Diagnostica Per Immagini E RadioterapiaSettore MED/24 - Urologia
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Distributed Leadership and the Visibility/Invisibility Paradox in On-line Communities

2011

This paper analyzes the role of distributed leadership in three on-line communities, reflecting on an observed visibility/invisibility paradox in leadership within these communities. Leaders who downplay their seniority and assume a degree of invisibility, allocating discretionary powers to subordinate levels in an organizational hierarchy, may facilitate the emergence of distributed leadership. Yet, simultaneously, leader-led relations are enabled by high leadership visibility. This paradox—that leaders need to be both highly visible and also invisible, or hands-off, when the occasion requires it—was derived from prior research into e-learning communities and tested in the analysis of disc…

leadershipe-learning leadershipambiguitycase study methodologypattern-matchingdistributed leadershipon-line communitiesisibility/invisibility paradox
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