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Article ; Online: MHD mode identification by higher order singular value decomposition of C-2W Mirnov probe data.

Tobin, M / Roche, T / Matsumoto, T

2021 Volume 92, Issue 4, Page(s) 43510

Abstract: The C-2W device (also known as "Norman") at TAE Technologies has proven successful at generating stable, long-lived field-reversed configuration (FRC) plasmas with record temperatures. The largest Mirnov probe array in C-2W measures three components of ... ...

Abstract	The C-2W device (also known as "Norman") at TAE Technologies has proven successful at generating stable, long-lived field-reversed configuration (FRC) plasmas with record temperatures. The largest Mirnov probe array in C-2W measures three components of the magnetic field just inside the vessel wall at 64 locations distributed approximately evenly in the cylindrical vessel's azimuthal and axial dimensions. This nearly rectangular array of probes creates a unique opportunity to apply higher order singular value decomposition (HOSVD) to efficiently analyze the external magnetic field data for the purposes of reconstructing the magnetohydrodynamic mode structures in the FRC. In the first application of this method for this purpose, HOSVD is shown to quickly and effectively detect and separate toroidal modes while indicating longitudinal dependence of mode phases and amplitudes, enhancing the coherence and utility of the vast quantity of data produced by this array. Analysis of the data from the entire array at once via HOSVD proves not only computationally more efficient than methods that separately analyze groups of probes at different axial locations but also leads to improved mode resolution at axial locations where these modes are weaker.
Language	English
Publishing date	2021-07-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	209865-9
ISSN	1089-7623 ; 0034-6748
ISSN (online)	1089-7623
ISSN	0034-6748
DOI	10.1063/5.0043802
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Book ; Online: Sun, Sea, and Ice

Tobin, Mary

ENGS 88 Honors Thesis (AB Students)

Autonomous observations of sea ice mass balance and the partitioning of solar radiation in Arctic sea ice

2020

Abstract: Three optical sensors were integrated into the Seasonal Ice Mass Balance Buoy (SIMB) 3 to autonomously measure Arctic sea ice mass balance and solar radiation partitioning simultaneously to better understand how Arctic sea ice responds to environmental ... ...

Abstract	Three optical sensors were integrated into the Seasonal Ice Mass Balance Buoy (SIMB) 3 to autonomously measure Arctic sea ice mass balance and solar radiation partitioning simultaneously to better understand how Arctic sea ice responds to environmental forces and amplifies climate change. Two pyranometers measure incoming and reflected solar irradiance and an underwater quantum sensor measures PAR and transmitted solar radiation. The optical sensor SIMB-3 was sent to the Beaufort Sea, Alaska, for deployment. Due to complications with Covid-19 and dynamic ice conditions, the device is now scheduled for deployment in spring 2021. The results section presents data from a SIMB-3 that was deployed in the Beaufort Sea in fall 2019 and compares the data with previous Beaufort Sea mass balance sites. Increased observation of the Arctic can help attribute changes in sea ice to environmental forces that are poorly understood.
Keywords	Arctic Sea Ice ; Solar Radiation Partitioning ; Ice Mass Balance ; Arctic Observation ; Engineering ; covid19
Publishing date	2020-01-01T08:00:00Z
Publisher	Dartmouth Digital Commons
Publishing country	us
Document type	Book ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Rare Adult-onset Citrullinemia Type 1 in the Postpartum Period: A Case Report.

Borsuk, Michael / Saab, Mathew / Tobin, Michael

Clinical practice and cases in emergency medicine

2023 Volume 7, Issue 1, Page(s) 20–23

Abstract: Introduction: Citrullinemia type 1 (CTLN1) is a urea cycle disorder caused by defective argininosuccinate synthetase leading to impaired ammonia elimination. Urea cycle disorders are typically diagnosed on neonatal screening but rarely can lie dormant ... ...

Abstract	Introduction: Citrullinemia type 1 (CTLN1) is a urea cycle disorder caused by defective argininosuccinate synthetase leading to impaired ammonia elimination. Urea cycle disorders are typically diagnosed on neonatal screening but rarely can lie dormant until a metabolic stressor causes initial onset of symptoms in adulthood. Case report: A 23-year-old female presented four days postpartum to the emergency department (ED) obtunded and declined to the point of requiring intubation. Labs revealed hyperammonemia, and she was subsequently found to have CTLN1. Conclusion: Urea cycle disorders presenting in adulthood are a rare etiology for the common ED complaint of altered mental status. The low incidence makes these treatable disorders easy to overlook leading to potentially significant morbidity and mortality. Therefore, it is important to recognize the risk factors that can trigger an acute metabolic derangement. This case highlights common risk factors for metabolic stress, possible presenting symptoms, and the positive outcome achievable when recognized and treated in a timely fashion.
Language	English
Publishing date	2023-02-28
Publishing country	United States
Document type	Journal Article
ISSN	2474-252X
ISSN (online)	2474-252X
DOI	10.5811/cpcem.2022.10.57277
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Reflective supervision and reflective practice in infant mental health: A scoping review of a diverse body of literature.

Tobin, Mary / Carney, Síle / Rogers, Elaine

Infant mental health journal

2023 Volume 45, Issue 1, Page(s) 79–117

Abstract: Reflective practice is a core component of Infant Mental Health (IMH) training and work in the form of reflective supervision/consultation (RS/C). RS/C supports and facilitates relationship-based practice, and is considered to help prevent burnout and ... ...

Abstract	Reflective practice is a core component of Infant Mental Health (IMH) training and work in the form of reflective supervision/consultation (RS/C). RS/C supports and facilitates relationship-based practice, and is considered to help prevent burnout and promote work satisfaction. In response to an identified gap in empirical research on RS/C, this scoping review aimed to give an overview of the broad range of study designs and outcomes by systematically charting empirical studies on RS/C in IMH-based work with children and families. Searches of Academic Search Complete, CINAHL, MEDLINE, APA PsychArticles, APA PsycInfo, and Web of Science were supplemented with a Google Scholar search and citation searching. Following title/abstract screening (n = 233) and full-text review (n = 168), 35 reports met criteria for inclusion. Key findings were organized into four categories: Essential components and processes of RS/C; Experiences and outcomes of RS/C; Emerging issues in RS/C literature; and Measuring, researching, and reporting on RS/C. Results describe the components and experience of engaging in quality RS/C, and show that practitioners generally experience RS/C as supportive and beneficial. The existing literature has some methodological limitations and further empirical research is needed on outcomes of RS/C. Practice implications and potential future research directions are discussed.
MeSH term(s)	Child ; Infant ; Humans ; Mental Health ; Health Personnel/psychology ; Cognitive Reflection ; Thinking ; Mental Health Services
Language	English
Publishing date	2023-12-01
Publishing country	United States
Document type	Journal Article ; Review
ZDB-ID	225602-2
ISSN	1097-0355 ; 0163-9641
ISSN (online)	1097-0355
ISSN	0163-9641
DOI	10.1002/imhj.22091
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Article ; Online: Measurements of impurity ion temperature and velocity distributions via active charge-exchange recombination spectroscopy in C-2W.

Nations, M / Gupta, D / Sweeney, J / Frausto, L / Tobin, M

The Review of scientific instruments

2021 Volume 92, Issue 5, Page(s) 53512

Abstract: In TAE Technologies' C-2W experiment, electrode biasing is utilized for boundary control of a field-reversed configuration (FRC) plasma embedded in a magnetic mirror. Understanding the underlying physics associated with FRC rotation, stabilization, and ... ...

Abstract	In TAE Technologies' C-2W experiment, electrode biasing is utilized for boundary control of a field-reversed configuration (FRC) plasma embedded in a magnetic mirror. Understanding the underlying physics associated with FRC rotation, stabilization, and heating is crucial for improving machine performance. Impurity ion rotation and temperature are sensitive to biasing effects, and measurements of these quantities can provide insight into important plasma dynamics and overall effectiveness of the biasing system. To this end, a charge-exchange recombination spectroscopy (ChERS) diagnostic was developed and deployed to measure local impurity ion temperature and velocity in the confinement vessel of C-2W. The system utilizes a new diagnostic neutral beam (40 keV, 8.5 A) and a fiber-coupled spectrometer with an image-intensified high-speed camera to measure beam-induced spectral line emission at multiple lines-of-sight. Design details and the first experimental results obtained with this new diagnostic are presented and discussed.
Language	English
Publishing date	2021-10-13
Publishing country	United States
Document type	Journal Article
ZDB-ID	209865-9
ISSN	1089-7623 ; 0034-6748
ISSN (online)	1089-7623
ISSN	0034-6748
DOI	10.1063/5.0043838
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Article ; Online: Publisher's Note: "Measurements of impurity ion temperature and velocity distributions via active charge-exchange recombination spectroscopy in C-2W" [Rev. Sci. Instrum. 92, 053512 (2021)].

Nations, M / Gupta, D / Sweeney, J / Frausto, L / Tobin, M

The Review of scientific instruments

2021 Volume 92, Issue 6, Page(s) 69901

Language	English
Publishing date	2021-07-09
Publishing country	United States
Document type	Journal Article ; Published Erratum
ZDB-ID	209865-9
ISSN	1089-7623 ; 0034-6748
ISSN (online)	1089-7623
ISSN	0034-6748
DOI	10.1063/5.0056405
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Article: Localist versus distributed representation of sounds in the auditory cortex controlled by distinct inhibitory neuronal subtypes.

Tobin, Melanie / Sheth, Janaki / Wood, Katherine C / Geffen, Maria N

bioRxiv : the preprint server for biology

2023

Abstract: Cortical neuronal populations can use a multitude of codes to represent information, each with different advantages and trade-offs. The auditory cortex represents sounds via a sparse code, which lies on the continuum between a localist representation ... ...

Abstract	Cortical neuronal populations can use a multitude of codes to represent information, each with different advantages and trade-offs. The auditory cortex represents sounds via a sparse code, which lies on the continuum between a localist representation with different cells responding to different sounds, and a distributed representation, in which each sound is encoded in the relative response of each cell in the population. Being able to dynamically shift the neuronal code along this axis may help with a variety of tasks that require categorical or invariant representations. Cortical circuits contain multiple types of inhibitory neurons which shape how information is processed within neuronal networks. Here, we asked whether somatostatin-expressing (SST) and vasoactive intestinal peptide-expressing (VIP) inhibitory neurons may have distinct effects on population neuronal codes, differentially shifting the encoding of sounds between distributed and localist representations. We stimulated optogenetically SST or VIP neurons while simultaneously measuring the response of populations of hundreds of neurons to sounds presented at different sound pressure levels. SST activation shifted the neuronal population responses toward a more localist code, whereas VIP activation shifted them towards a more distributed code. Upon SST activation, sound representations became more discrete, relying on cell identity rather than strength. In contrast, upon VIP activation, distinct sounds activated overlapping populations at different rates. These shifts were implemented at the single-cell level by modulating the response-level curve of monotonic and nonmonotonic neurons. These results suggest a novel function for distinct inhibitory neurons in the auditory cortex in dynamically controlling cortical population codes.
Language	English
Publishing date	2023-06-22
Publishing country	United States
Document type	Preprint
DOI	10.1101/2023.02.01.526470
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Fast recovery of disrupted tip links induced by mechanical displacement of hair bundles.

Alonso, R G / Tobin, M / Martin, P / Hudspeth, A J

Proceedings of the National Academy of Sciences of the United States of America

2020 Volume 117, Issue 48, Page(s) 30722–30727

Abstract: Hearing and balance rely on the capacity of mechanically sensitive hair bundles to transduce vibrations into electrical signals that are forwarded to the brain. Hair bundles possess tip links that interconnect the mechanosensitive stereocilia and convey ... ...

Abstract	Hearing and balance rely on the capacity of mechanically sensitive hair bundles to transduce vibrations into electrical signals that are forwarded to the brain. Hair bundles possess tip links that interconnect the mechanosensitive stereocilia and convey force to the transduction channels. A dimer of dimers, each of these links comprises two molecules of protocadherin 15 (PCDH15) joined to two of cadherin 23 (CDH23). The "handshake" that conjoins the four molecules can be disrupted in vivo by intense stimulation and in vitro by exposure to Ca
MeSH term(s)	Action Potentials ; Animals ; Biomarkers ; Calcium/metabolism ; Calcium Chelating Agents/pharmacology ; Cochlea/physiology ; Electrophysiological Phenomena ; Hair Cells, Auditory/physiology ; Mechanical Phenomena ; Mechanotransduction, Cellular ; Rats ; Stereocilia/metabolism
Chemical Substances	Biomarkers ; Calcium Chelating Agents ; Calcium (SY7Q814VUP)
Language	English
Publishing date	2020-11-16
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	209104-5
ISSN	1091-6490 ; 0027-8424
ISSN (online)	1091-6490
ISSN	0027-8424
DOI	10.1073/pnas.2016858117
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Comprehensive imaging of C-2W plasmas: Instruments and applications.

Granstedt, E M / Gupta, D / Sweeney, J / Tobin, M / Dikovsky, M

The Review of scientific instruments

2021 Volume 92, Issue 4, Page(s) 43515

Abstract: The C-2W device ("Norman") [Gota et al., Nucl. Fusion 59, 112009 (2019)] has produced and sustained beam-driven field-reversed configuration (FRC) plasmas embedded in a magnetic mirror geometry using neutral beams and end-bias electrodes located in ... ...

Abstract	The C-2W device ("Norman") [Gota et al., Nucl. Fusion 59, 112009 (2019)] has produced and sustained beam-driven field-reversed configuration (FRC) plasmas embedded in a magnetic mirror geometry using neutral beams and end-bias electrodes located in expander divertors. Several discrete vessels comprise this device, and many imaging instruments are required in order to view the plasma throughout. To meet this need, a suite of spatially and radiometrically calibrated, high-speed camera systems have been deployed. Besides global visualization of the plasma evolution and macro-stability, this imaging suite has been used in a variety of applications. One example application is a tomographic reconstruction of passive impurity emission. Calculation of the magnetic field in the equilibrium vessel is complicated by eddy currents in conducting structures and internal currents in the high-β FRC plasma. In addition, thus far non-perturbative measurements of internal field have not been available. The tomographic reconstruction of O
Language	English
Publishing date	2021-07-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	209865-9
ISSN	1089-7623 ; 0034-6748
ISSN (online)	1089-7623
ISSN	0034-6748
DOI	10.1063/5.0043778
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Node-Based Configuration Management Architecture for Private LOCKSS Networks

Tobin M. Cataldo

Code4Lib Journal, Iss

2016 Volume 34

Abstract: Node-based configuration management describes a services architecture for Private LOCKSS Networks that transfers administrative services onto a peer preservation node in the network. The architecture also describes techniques for enabling full redundancy ...

Abstract	Node-based configuration management describes a services architecture for Private LOCKSS Networks that transfers administrative services onto a peer preservation node in the network. The architecture also describes techniques for enabling full redundancy of data for configuration administration utilizing the preservation protocols in LOCKSS. The goal of node-based configuration management is a horizontal administrative model where any peer node can assume administrative services with complete redundancy of configuration data across all nodes.
Keywords	Bibliography. Library science. Information resources ; Z ; Information resources (General) ; ZA3040-5185
Language	English
Publishing date	2016-10-01T00:00:00Z
Publisher	Code4Lib
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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