1,416 research outputs found
DOC, POC, d13C-POC, PN from a diffuse vent in West Mata sampled in May 2009 using ROV Jason II deployed from R/V Thomas Thompson.
No full textDataset: West Mata 2009 DOC,13C-POC, DONDOC, POC, d13C-POC, PN from a diffuse vent in West Mata sampled in May 2009 using ROV Jason II deployed from R/V Thomas Thompson.
For a complete list of measurements, refer to the full dataset description in the supplemental file 'Dataset_description.pdf'. The most current version of this dataset is available at: https://www.bco-dmo.org/dataset/844580NSF Division of Ocean Sciences (NSF OCE) OCE-092988
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Practical Design and Applications of Ultrafast Semiconductor Disk Lasers
No full textVertical External Cavity Surface Emitting Lasers (VECSELs) have become well established in recent years for their design flexibility and promising power scalability. Recent efforts in VECSEL development have focused heavily on expanding the medium into the ultrafast regime of modelocked operation. Presented in this thesis is a detailed discussion regarding the development of ultrafast VECSEL devices. Achievements in continuous wave (CW) operation will be highlighted, followed by several chapters detailing the engineering challenges and design solutions which enable modelocked operation of VECSELs in the ultrafast regime, including the design of the saturable absorbers used to enforce modelocking, management of the net group delay dispersion (GDD) inside the cavity, and the design of the active region to support pulse durations on the order of 100 fs. Work involving specific applications - VECSELs emitting on multiple wavelengths simultaneously and the use of VECSEL seed oscillators for amplification and spectral broadening - will also be presented. Key experimental results will include a novel multi-fold cavity design that produced record-setting peak powers of 6.3 kW from a modelocked VECSEL, an octave-spanning supercontinuum with an average power of 2 W generated using a VECSEL seed and a 2-stage Yb fiber amplifier, and two separate experiments where a VECSEL was made to emit on multiple wavelengths simultaneously in modelocked and highly stable CW operation, respectively. Further, many diagnostic and characterization measurements will be presented, most notably the in-situ probing of a VECSEL gain medium during stable modelocked operation with temporal resolution on the order of 100 fs, but also including characterization of the relaxation rates in different saturable absorber designs and the effectiveness of different methods for managing the net GDD of a device
Nonexpert ratings of family and parent–child interaction.
No full textObservational methods benefit the study of family process, but many expert rating systems are costly and time-consuming. This study examined the utility of using small groups of eight to ten nonexperts to rate family conflict and maternal sensitivity. Videotaped triadic interactions of 39 families were drawn from Lindahl (1998), and 22 mother-toddler free-play interactions were drawn from Baker, Messinger, Lyons, and Grantz (2010). Sixty undergraduates rated interactions from these samples in real time using computer-assisted technology. Nonexpert ratings of family conflict were reliable, demonstrated high concordance with expert ratings, and replicated a key finding from Lindahl (1998). Nonexpert ratings of maternal sensitivity replicated a relevant finding from Baker, Messinger et al. (2010). Concordance was lower for maternal sensitivity, however, because of the tendency of nonexperts to overattend to sensitive structuring compared with emotional supportiveness. A second study indicated that as few as six nonexperts could effectively rate maternal sensitive structuring, but that nonexperts were unable to accurately rate emotional supportiveness. Implications for research methods and for our understanding of these important family constructs are discussed
sj-pdf-2-ctj-10.1177_17407745211049829 – Supplemental material for Design and implementation of an international, multi-arm, multi-stage platform master protocol for trials of novel SARS-CoV-2 antiviral agents: Therapeutics for Inpatients with COVID-19 (TICO/ACTIV-3)
No full textSupplemental material, sj-pdf-2-ctj-10.1177_17407745211049829 for Design and implementation of an international, multi-arm, multi-stage platform master protocol for trials of novel SARS-CoV-2 antiviral agents: Therapeutics for Inpatients with COVID-19 (TICO/ACTIV-3) by Daniel D Murray, Abdel G Babiker, Jason V Baker, Christina E Barkauskas, Samuel M Brown, Christina C Chang, Victoria J Davey, Annetine C Gelijns, Adit A Ginde, Birgit Grund, Elizabeth Higgs, Fleur Hudson, Virginia L Kan, H Clifford Lane, Thomas A Murray, Roger Paredes, Mahesh KB Parmar, Sarah Pett, Andrew N Phillips, Mark N Polizzotto, Cavan Reilly, Uriel Sandkovsky, Shweta Sharma, Marc Teitelbaum, B Taylor Thompson, Barnaby E Young, James D Neaton and Jens D Lundgren in Clinical Trials</p
sj-pdf-1-ctj-10.1177_17407745211049829 – Supplemental material for Design and implementation of an international, multi-arm, multi-stage platform master protocol for trials of novel SARS-CoV-2 antiviral agents: Therapeutics for Inpatients with COVID-19 (TICO/ACTIV-3)
No full textSupplemental material, sj-pdf-1-ctj-10.1177_17407745211049829 for Design and implementation of an international, multi-arm, multi-stage platform master protocol for trials of novel SARS-CoV-2 antiviral agents: Therapeutics for Inpatients with COVID-19 (TICO/ACTIV-3) by Daniel D Murray, Abdel G Babiker, Jason V Baker, Christina E Barkauskas, Samuel M Brown, Christina C Chang, Victoria J Davey, Annetine C Gelijns, Adit A Ginde, Birgit Grund, Elizabeth Higgs, Fleur Hudson, Virginia L Kan, H Clifford Lane, Thomas A Murray, Roger Paredes, Mahesh KB Parmar, Sarah Pett, Andrew N Phillips, Mark N Polizzotto, Cavan Reilly, Uriel Sandkovsky, Shweta Sharma, Marc Teitelbaum, B Taylor Thompson, Barnaby E Young, James D Neaton and Jens D Lundgren in Clinical Trials</p
sj-docx-3-ctj-10.1177_17407745211049829 – Supplemental material for Design and implementation of an international, multi-arm, multi-stage platform master protocol for trials of novel SARS-CoV-2 antiviral agents: Therapeutics for Inpatients with COVID-19 (TICO/ACTIV-3)
No full textSupplemental material, sj-docx-3-ctj-10.1177_17407745211049829 for Design and implementation of an international, multi-arm, multi-stage platform master protocol for trials of novel SARS-CoV-2 antiviral agents: Therapeutics for Inpatients with COVID-19 (TICO/ACTIV-3) by Daniel D Murray, Abdel G Babiker, Jason V Baker, Christina E Barkauskas, Samuel M Brown, Christina C Chang, Victoria J Davey, Annetine C Gelijns, Adit A Ginde, Birgit Grund, Elizabeth Higgs, Fleur Hudson, Virginia L Kan, H Clifford Lane, Thomas A Murray, Roger Paredes, Mahesh KB Parmar, Sarah Pett, Andrew N Phillips, Mark N Polizzotto, Cavan Reilly, Uriel Sandkovsky, Shweta Sharma, Marc Teitelbaum, B Taylor Thompson, Barnaby E Young, James D Neaton and Jens D Lundgren in Clinical Trials</p
An edition of Ottorino Respighi's Fantasia Slava, p. 50 with an analysis of his early style
No full textElectronic Thesis or DissertationFantasia Slava, a 1903 work by Ottorino Respighi (1879-1936) for piano and orchestra, can be considered the embodiment of his early style. The characteristics of this style will be examined through brief analyses of four works written prior to Fantasia Slava: Violin Sonata in D Minor (1897), P. 15; Piano Sonata in F Minor, P. 16 (1897); Six Pieces for Violin and Piano, P. 31 (1901-2); and Piano Quintet in F Minor (1902). The characteristics developed over the course of these pieces directly affected the construction of Fantasia Slava and shows the young composer developing his compositional language. This document also includes an edition of Fantasia Slava for two pianos-one piano designated for the solo and another a piano reduction of the orchestral part. The sole publication of Fantasia Slava is the orchestral score from Ricordi, copyrighted in 1986. It is from this edition that the author has drawn his two-piano edition. The manuscript for Fantasia Slava, P. 50 was not available for review at the time of this document. Permission to utilize the first edition of the work in such a manner was graciously granted by Lucia Castellina, editor at Casa Ricordi, in a November 14, 2013, email to the author. The orchestral reduction is intended to reflect accurately the sonority and scope of the orchestra score, while remaining playable and true to the inherent properties of the modern piano. Critical notes following the edition reflect discrepancies between the orchestral score and the present edition. They also outline salient points regarding the edition's creation
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The Snare Drum as a Solo Concert Instrument: An In-Depth Study of Works by Milton Babbitt, John Cage, Dan Senn, and Stuart Saunders Smith, Together with Three Recitals of Selected Works by Keiko Abe, Daniel Levitan, Askell Masson, Karlheinz Stockhausen, and Others
No full textThis dissertation discusses the potential of the snare drum as a solo concert instrument. Four pieces from a collection entitled The Noble Snare are used for demonstration ("Homily" by Milton Babbitt, "Composed Improvisation for Snare Drum" by John Cage, "Peeping Tom" by Dan Senn, and "The Noble Snare" by Stuart Saunders Smith). In the absence of many traditional musical devices (i.e. melody and harmony), alternative means of expression are used by the composer. Each piece is discussed with regard to its distinctive compositional approach and inherent performance issues. Information is also given pertaining to the background of the Noble Snare series. This includes: the inspiration for the project, editorial issues, and its influence on snare drum performance. Much of this research was completed through interviews by with author with Sylvia Smith, publisher of The Noble Snare and owner of Smith Publications
Adaptive speciation: The role of natural selection in mechanisms of geographic and non-geographic speciation
No full textRecent discussion of mechanism has suggested new approaches to several issues in the philosophy of science, including theory structure, causal explanation, and reductionism. Here, I apply what I take to be the fruits of the "new mechanical philosophy" to an analysis of a contemporary debate in evolutionary biology about the role of natural selection in speciation. Traditional accounts of that debate focus on the geographic context of genetic divergence--namely, whether divergence in the absence of geographic isolation is possible (or significant). Those accounts are at best incomplete, I argue, because they ignore the mechanisms producing divergence and miss what is at stake in the biological debate. I argue that the biological debate instead concerns the scope of particular speciation mechanisms which assign different roles to natural selection at various stages of divergence. The upshot is a new interpretation of the crux of that debate--namely, whether divergence with gene flow is possible (or significant) and whether the isolating mechanisms producing it are adaptive
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