1,766 research outputs found

    H. Blumer s/ R. Rahn z. fr. Er

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    Dedikationssilhouette nach rechts von H. Blumer, gewidmet Johann Rudolf Rahn (1841-1912)Anonyme/r Künstler/inHandschriftliche Widmung unterhalb des Porträts "H. Blumer s/ R. Rahn z[ur] fr[eundlichen] Er[innerung]

    P. Blumer s/m H. Häuser z. fr. Erg

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    Dedikationssilhouette nach links von P. Blumer, gewidmet Hermann Heuser (Häuser)Anonyme/r Künstler/inHandschriftliche Widmung unterhalb des Bildes "P. Blumer s[eine]m H. Häuser z[ur] fr[eundlichen] Er[innerun]g

    An exodus of enthusiasm: G. Alder Blumer, eugenics, and U.S. psychiatry, 1890-1920

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    Tracks the change of heart on the subject of eugenics experienced by notable psychiatrist G. Alder Blumer during 1890-1920. Negative eugenics, stressing the need to eliminate unfavorable traits through reproductive control, resulted in thousands of the mentally ill being sterilized. While working at the New York State Lunatic Asylum in Utica, Blumer became an enthusiastic proponent of negative eugenics. But upon moving to the more progressive Butler Hospital for the Insane in Providence, Rhode Island, Blumer came to believe more in therapeutic approaches to mental illness.Documentation: Based on Blumer's papers, New York State Lunatic Asylum records, and secondary sources; illus., 76 notes.; Abstracter: R. HaasSource type: Electronic(1

    Oriented right-angled Artin pro-\ell groups and maximal pro-\ell Galois groups

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    For a prime number \ell we introduce and study oriented right-angled Artin pro-\ell groups GΓ,λG_{\Gamma,\lambda}(oriented pro-\ell RAAGs for short) associated to a finite oriented graph Γ\Gamma and a continuous group homomorphism λ ⁣:ZZ×\lambda\colon\mathbb Z_\ell\to\mathbb Z_\ell^\times. We show that an oriented pro-\ell RAAG GΓ,λG_{\Gamma,\lambda} is a Bloch-Kato pro-\ell group if, and only if, (GΓ,λ,θΓ,λ)(G_{\Gamma,\lambda},\theta_{\Gamma,\lambda}) is an oriented pro-\ell group of elementary type generalizing a recent result of I. Snopche and P. Zalesskii. Here θΓ,λ ⁣:GΓ,λZp×\theta_{\Gamma,\lambda}\colon G_{\Gamma,\lambda}\to\mathbb Z_p^\times denotes the canonical \ell-orientation on GΓ,λG_{\Gamma,\lambda}. We invest some effort in order to show that oriented right-angled Artin pro-\ell groups share many properties with right-angled Artin pro-\ell-groups or even discrete RAAG's, e.g., if Γ\Gamma is a specially oriented chordal graph, then GΓ,λG_{\Gamma,\lambda} is coherent, generalizing a result of C. Droms. Moreover, in this case (GΓ,λ,θΓ,λ)(G_{\Gamma,\lambda},\theta_{\Gamma,\lambda}) has the Positselski-Bogomolov property generalizing a result of H. Servatius, C. Droms and B. Servatius for discrete RAAG's. If Γ\Gamma is a specially oriented chordal graph and Im(λ)1+4Z2{\rm Im}(\lambda)\subseteq 1+4\mathbb Z_2 in case that =2\ell=2, then H(GΓ,λ,F)Λ(Γ¨op){\rm H}^\bullet(G_{\Gamma,\lambda},\mathbb F_\ell) \simeq \Lambda^\bullet(\ddot{\Gamma}^{\rm op}) generalizing a well known result of M. Salvetti.Comment: The differences between the 1st version (Apr'23) and the 2nd are: correction of a couple of minor misprints, dedication to the memory of Avinoam Man

    Blumer, Richmond (R A E) Anthony Barrett, 411854

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    This record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete. Visit this record in UMA's new catalogue at: https://archives.library.unimelb.edu.au/nodes/view/372326Surname: BLUMER Given Name(s) or Initials: RICHMOND (R A E) ANTHONY BARRETT Military Service Number or Last Known Location: 411854 Missing, Wounded and Prisoner of War Enquiry Card Index Number: 51717183245 Item: [2016.0049.04652] "Blumer, Richmond (R A E) Anthony Barrett, 411854

    Investigations of connection detailing and steel properties for high ductility doweled timber connections

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    According to Eurocode 8 moderate to high dissipative behaviour of timber structures requires sufficient ductility of the critical regions. Earlier experiments on timber connections with slotted-in steel plates and laterally loaded common steel dowels rarely achieved high ductility values. Connections consisting of LVL-C members, doweltype fasteners with different post-elastic steel properties, full confinement of the timber member and measures to restrain the notch effect were investigated by means of monotonic and cyclic tests with regards to the displacement ductility. The measures taken proved to be effective in enhancing the plastic deformation capacity of the steel dowels to a large extent. However, a new aspect was observed: the constriction of the dowels in the contact area with the plate. The research results provided a better understanding of the factors influencing the behaviour of slotted-in steel plate connection

    Groups of p-absolute Galois type that are not absolute Galois groups

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    Let p be a prime. We study pro-p groups of p-absolute Galois type, as defined by Lam-Liu-Sharifi-Wake-Wang. We prove that the pro-p completion of the right-angled Artin group associated to a chordal simplicial graph is of p-absolute Galois type, and moreover it satisfies a strong version of the Massey vanishing property. Also, we prove that Demushkin groups are of p-absolute Galois type, and that the free pro-p product -- and, under certain conditions, the direct product -- of two pro-p groups of p-absolute Galois type satisfying the Massey vanishing property is again a pro-p group of p-absolute Galois type satisfying the Massey vanishing property. Consequently, there is a plethora of pro-p groups of p-absolute Galois type satisfying the Massey vanishing property that do not occur as absolute Galois groups.Comment: Final version, as it will appear on JPA

    Light Bulb Efficiency and Environmental Impacts

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    The most important global environmental issue of our times is climate change and global warming. In the decades to come, no one will be untouched by the impacts of rising temperatures, droughts, violent storms, rising sea level and weather extremes that are being induced by human activity. Governments around the world have committed to slowing and eventually controlling global warming (Paris Accord 2015 and Kigali Accord 2016) but those efforts seem to focus on large scale targets such as energy production, major industries and transportation systems. Individuals seem to have little or no possible role in addressing this major problem. Yet, we all use energy and the choices we each make about the automobile we drive, home appliances we use, and even the light bulbs in our homes will have a collective impact on the emissions of greenhouse gases and the rate of global warming. In this study, students, working in groups, evaluate the three major forms of electric light bulbs, incandescent (I), compact fluorescent (CF) and light emitting diode (LED). Students design and conduct experiments to compare light bulb efficiencies, visible light outputs, and waste heat outputs. The purpose of this work is for each student group to make recommendations on which light bulb type is the best buy and which would be best for the environment

    Research Immersion Improves Outcomes for Underprepared Freshmen

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    Our implementation of the Howard Hughes Medical Institute, Science Education Alliance, Phage Hunters curriculum (www.seaphages.org) at Morehouse College differed from the implementations at other colleges and universities. We intentionally limited our enrollment to entering freshmen who were deemed underprepared to begin a biology major based on SAT scores. These students were not permitted to initially enroll in a traditional gateway survey-type biology course (BIO 111). Underprepared students were invited to apply for our Phage Hunters course to assess the effectiveness of this research immersion experience on their future success in BIO 111. Six cohorts (N=90) of Phage Hunters students have taken the gateway majors course permitting us to compare their academic performance to peers (N=45) who were similarly underprepared first-time freshmen but who did not participate in Phage Hunters, and to non-peers (N=182) all other students in the same gateway course. Phage Hunters students had a significantly greater pass rate (A,B,C grades) and a significantly lower withdrawal rate than did their peers. Compared to non-peers, Phage Hunters has a significantly lower withdrawal rate and no significant difference in pass rates. These findings indicate that an authentic research immersion experience can dramatically improve student outcomes for underprepared students and consequently improve freshmen student retention

    Serotonin system in Tunicates: insight from morphological and molecular approaches

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    Serotonin (5 hydroxytryptamine, 5-HT) is a biogenic amine of ancient origin that is widespread among animals. It plays multiple roles during development and in adults as neurotransmitter at synaptic level and neuro hormone controlling complex behaviors in both vertebrates and invertebrates. Tunicates occupy a key phylogenetic position to understand the evolution of serotonin functions since they are the sister group of vertebrates. The presence of serotonin in tunicates was first reported in adults of the ascidian Ciona robusta (formerly Ciona intestinalis) in the 1946. Since then, serotonin systems have been in many tunicate species and its functions during embryogenesis and metamorphosis explored. We reviewed the current knowledge about serotonin in these animals first by comparing its presence and localization in larvae and adults of different species. Then, we focused on the model organism Ciona for which data regarding sequences and expression patterns of genes involved in serotonin synthesis and function have been reported. Overall, we provided a comprehensive overview of serotonergic machinery in tunicates and gave hints for future studies in this field
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