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Detecting significant events in lecture video using supervised machine learning

instructional interventions

Brooks C, Greer J.
GSID: FC9Q_kQlFPIJ
C Brooks, K Amundson, J Greer - Artificial Intelligence in …, 2009 - ebooks.iospress.nl

This paper describes work we are doing to identify significant events in video captures of academic lectures. Unlike other approaches which tend to define per-image comparison …

Ultrahigh strength of dislocation-free Ni3Al nanocubes.

Small (Weinheim an der Bergstrasse, Germany)

Maaß R, Meza L, Gan B, Tin S, Greer JR.
PMID: 22454244
Small. 2012 Jun 25;8(12):1869-75. doi: 10.1002/smll.201102603. Epub 2012 Mar 27.

Individual Ni(3) Al nanocubes under pressure are investigated by comparing the compressive strength of both dislocation-free and irradiated Ni(3) Al nanocubes. The results are dicussed in light of the size-dependent and size-independent strength of face-centered cubic (fcc) nanocrystals in...

Probing Microplasticity in Small-Scale FCC Crystals via Dynamic Mechanical Analysis.

Physical review letters

Ni X, Papanikolaou S, Vajente G, Adhikari RX, Greer JR.
PMID: 28452540
Phys Rev Lett. 2017 Apr 14;118(15):155501. doi: 10.1103/PhysRevLett.118.155501. Epub 2017 Apr 14.

In small-scale metallic systems, collective dislocation activity has been correlated with size effects in strength and with a steplike plastic response under uniaxial compression and tension. Yielding and plastic flow in these samples is often accompanied by the emergence...

Enabling Simultaneous Extreme Ultra Low-k in Stiff, Resilient, and Thermally Stable Nano-Architected Materials.

Nano letters

Lifson ML, Kim MW, Greer JR, Kim BJ.
PMID: 29112423
Nano Lett. 2017 Dec 13;17(12):7737-7743. doi: 10.1021/acs.nanolett.7b03941. Epub 2017 Nov 09.

Low dielectric constant (low-k) materials have gained increasing popularity because of their critical role in developing faster, smaller, and higher performance devices. Their practical use has been limited by the strong coupling among mechanical, thermal, and electrical properties of...

Surgeon Design Interface for Patient-Specific Concentric Tube Robots.

Proceedings of the ... IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics. IEEE/RAS-EMBS International Conference on Biomedical Robotics and Biomechatronics

Morimoto TK, Greer JD, Hsieh MH, Okamura AM.
PMID: 28656124
Proc IEEE RAS EMBS Int Conf Biomed Robot Biomechatron. 2016 Jun;2016:41-48. doi: 10.1109/BIOROB.2016.7523596. Epub 2016 Jul 28.

Concentric tube robots have potential for use in a wide variety of surgical procedures due to their small size, dexterity, and ability to move in highly curved paths. Unlike most existing clinical robots, the design of these robots can...

Folate Biosynthesis, Reduction, and Polyglutamylation and the Interconversion of Folate Derivatives.

EcoSal Plus

Green JM, Matthews RG.
PMID: 26443588
EcoSal Plus. 2007 Apr;2(2). doi: 10.1128/ecosalplus.3.6.3.6.

Many microorganisms and plants possess the ability to synthesize folic acid derivatives de novo, initially forming dihydrofolate. All the folic acid derivatives that serve as recipients and donors of one-carbon units are derivatives of tetrahydrofolate, which is formed from...

Differences in outcome of patients with syncytial variant Hodgkin lymphoma compared with typical nodular sclerosis Hodgkin lymphoma.

Therapeutic advances in hematology

Sethi T, Nguyen V, Li S, Morgan D, Greer J, Reddy N.
PMID: 28042455
Ther Adv Hematol. 2017 Jan;8(1):13-20. doi: 10.1177/2040620716676256. Epub 2016 Oct 30.

BACKGROUND: Nodular sclerosis Hodgkin lymphoma (NS-HL) is the most common subtype of HL and usually has a good prognosis. A variant of NS, the syncytial variant (SV) has well-established histopathologic features but little is known about its clinical behavior....

Using hysteresis analysis of high-resolution water quality monitoring data, including uncertainty, to infer controls on nutrient and sediment transfer in catchments.

The Science of the total environment

Lloyd CEM, Freer JE, Johnes PJ, Collins AL.
PMID: 26599139
Sci Total Environ. 2016 Feb 01;543:388-404. doi: 10.1016/j.scitotenv.2015.11.028. Epub 2015 Nov 18.

A large proportion of nutrients and sediment is mobilised in catchments during storm events. Therefore understanding a catchment's hydrological behaviour during storms and how this acts to mobilise and transport nutrients and sediment to nearby watercourses is extremely important...

A detailed phenotypic analysis of immune cell populations in the bronchoalveolar lavage fluid of atopic asthmatics after segmental allergen challenge.

Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology

Boomer JS, Parulekar AD, Patterson BM, Yin-Declue H, Deppong CM, Crockford S, Jarjour NN, Castro M, Green JM.
PMID: 24330650
Allergy Asthma Clin Immunol. 2013 Sep 17;9(1):37. doi: 10.1186/1710-1492-9-37.

BACKGROUND: Atopic asthma is characterized by intermittent exacerbations triggered by exposure to allergen. Exacerbations are characterized by an acute inflammatory reaction in the airways, with recruitment of both innate and adaptive immune cells. These cell populations as well as...

Homologous size-extension of hybrid vanadate capsules - solid state structures, solution stability and surface deposition.

Chemical communications (Cambridge, England)

Mahimaidoss MB, Krasnikov SA, Reck L, Onet CI, Breen JM, Zhu N, Marzec B, Shvets IV, Schmitt W.
PMID: 24435072
Chem Commun (Camb). 2014 Mar 04;50(18):2265-7. doi: 10.1039/c3cc48541b. Epub 2014 Jan 17.

The dimensions and cavity sizes of the molecular capsules with the general formula [V10O18L4](10-) can be controlled modularly through the nature of the bifunctional, rigid organophosphonate ligands L(1) and L(2) (L(1) = bis(4-phosphonatophenyl)ethyne and L(2) = bis(4-phosphonatophenyl)butadiyne); the solution...

Measurement Issues in Anthropometric Measures of Limb Volume Change in Persons at Risk for and Living with Lymphedema: A Reliability Study.

Journal of personalized medicine

Tidhar D, Armer JM, Deutscher D, Shyu CR, Azuri J, Madsen R.
PMID: 26437431
J Pers Med. 2015 Sep 30;5(4):341-53. doi: 10.3390/jpm5040341.

Understanding whether a true change has occurred during the process of care is of utmost importance in lymphedema management secondary to cancer treatments. Decisions about when to order a garment, start an exercise program, and begin or end therapy...

Fractal atomic-level percolation in metallic glasses.

Science (New York, N.Y.)

Chen DZ, Shi CY, An Q, Zeng Q, Mao WL, Goddard WA, Greer JR.
PMID: 26383945
Science. 2015 Sep 18;349(6254):1306-10. doi: 10.1126/science.aab1233.

Metallic glasses are metallic alloys that exhibit exotic material properties. They may have fractal structures at the atomic level, but a physical mechanism for their organization without ordering has not been identified. We demonstrated a crossover between fractal short-range...

Showing 1 to 12 of 423 entries