1,722,262 research outputs found
Lloyd, David T, [No Service Number]
No full textThis record was harvested from a previous catalogue system and will be withdrawn in 2025. Information in this record may be superseded or incomplete.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/399720Surname: LLOYD. Given Name(s) or Initials: DAVID T. Military Service Number or Last Known Location: [No Registration Number]. Missing, Wounded and Prisoner of War Enquiry Card Index Number: 26706.217822
Item: [2016.0049.32013] "Lloyd, David T, [No Service Number]
Lloyd, David
No full textDavid Lloyd, circa 1939
Courtesy of the Rockefeller Archive Center
Lloyd, David (1911-1985) joined the research group at the Rockefeller Institute under the aegis of Dr. Gasser in 1939. He left the institute in 1943 to accept a position at Yale but returned to the Rockefeller in 1946 and remained there until his retirement in 1970.
He has concerned himself with tracing the neuronal make-up of pathways of nerve action in the body. His laboratory did pioneering research on the physiology of the synaptic endings of neurons. In 1941 and 1946, Lloyd reported rigorous experiments on direct inhibition in the central nervous system. Another Lloyd\u27s investigations gave final proof of the fact that the pathway of knee-jerk reflex is made up of two neurons only, each consisting of a nerve cell with a fiber that may be as long as three feet. Later he studied the participation of several or many neurons linked to form pathways for complicated reflex activities.
Years at The Rockefeller University: 1939-1943; 1946-1970; emeritus 1970-1985https://digitalcommons.rockefeller.edu/faculty-members/1041/thumbnail.jp
Implementation of a circuit for communication using solitons
Full text linkThesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.Includes bibliographical references (p. 37).by Lloyd David D'Souza.M.Eng
Lloyd (David). Nationalism and Minor Literature. James Clarence Mangan and The Emergence of Irish Cultural Nationalism
No full textVerstraete Ginette. Lloyd (David). Nationalism and Minor Literature. James Clarence Mangan and The Emergence of Irish Cultural Nationalism. In: Revue belge de philologie et d'histoire, tome 70, fasc. 3, 1992. Langues et littératures modernes — Moderne taal- en letterkunde. pp. 875-876
Hybrid neuromusculoskeletal modeling to best track joint moments using a balance between muscle excitations derived from electromyograms and optimization
No full textCurrent electromyography (EMG)-driven musculoskeletal models are used to estimate joint moments measured from an individual?s extremities during dynamic movement with varying levels of accuracy. The main benefit is the underlying musculoskeletal dynamics is simulated as a function of realistic, subject-specific, neural-excitation patterns provided by the EMG data. The main disadvantage is surface EMG cannot provide information on deeply located muscles. Furthermore, EMG data may be affected by cross-talk, recording and post-processing artifacts that could adversely influence the EMG?s information content. This limits the EMG-driven model?s ability to calculate the multi-muscle dynamics and the resulting joint moments about multiple degrees of freedom. We present a hybrid neuromusculoskeletal model that combines calibration, subject-specificity, EMG-driven and static optimization methods together. In this, the joint moment tracking errors are minimized by balancing the information content extracted from the experimental EMG data and from that generated by a static optimization method. Using movement data from five healthy male subjects during walking and running we explored the hybrid model?s best configuration to minimally adjust recorded EMGs and predict missing EMGs while attaining the best tracking of joint moments. Minimally adjusted and predicted excitations substantially improved the experimental joint moment tracking accuracy than current EMG-driven models. The ability of the hybrid model to predict missing muscle EMGs was also examined. The proposed hybrid model enables muscle-driven simulations of human movement while enforcing physiological constraints on muscle excitation patterns. This might have important implications for studying pathological movement for which EMG recordings are limited.No Full Tex
Erratum: Corrections to Neural Data-Driven Musculoskeletal Modeling for Personalized Neurorehabilitation Technologies (IEEE Transactions on Biomedical Engineering (2016) 63:5 (879-893))
No full textTerminal oxidases: A summary
No full textTables 1 and 2 summarize some of the characteristics of terminal oxidases found in eukaryotes and prokaryotes respectively and discussed in detail in the preceding contributions
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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