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Showing 1 to 12 of 540 entries
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Designing an Observing System to Study the Surface Biology and Geology (SBG) of the Earth in the 2020s

Geoscience Opportunities for Leadership in Diversity AND Program Evaluation

Stavros EN.
GSID: AM9lPt68X_cJ
EN Stavros, J Chrone… - Journal of …, 2022 - Wiley Online Library

Observations of planet Earth from space are a critical resource for science and society. Satellite measurements represent very large investments and United States (US) agencies organize their effort to maximize the return on that investment. The US National Research...

Bispectral index versus minimum alveolar concentration for prevention of intraoperative awareness: does a practical controlled trial provide CERtainty?.

Anesthesiology

Memtsoudis SG, Liu SS.
PMID: 22990175
Anesthesiology. 2012 Oct;117(4):693-5. doi: 10.1097/ALN.0b013e3182690586.

No abstract available.

Peroral endoscopic myotomy (POEM) vs laparoscopic Heller myotomy (LHM) for the treatment of Type III achalasia in 75 patients: a multicenter comparative study.

Endoscopy international open

Kumbhari V, Tieu AH, Onimaru M, El Zein MH, Teitelbaum EN, Ujiki MB, Gitelis ME, Modayil RJ, Hungness ES, Stavropoulos SN, Shiwaku H, Kunda R, Chiu P, Saxena P, Messallam AA, Inoue H, Khashab MA.
PMID: 26171430
Endosc Int Open. 2015 Jun;3(3):E195-201. doi: 10.1055/s-0034-1391668. Epub 2015 Apr 13.

BACKGROUND AND STUDY AIMS: Type III achalasia is characterized by rapidly propagating pressurization attributable to spastic contractions. Although laparoscopic Heller myotomy (LHM) is the current gold standard management for type III achalasia, peroral endoscopic myotomy (POEM) is conceivably superior...

Probing Rotational Motion in 4-tert-Butylcatechol through H Atom Photofragmentation: Deviations from Axial Recoil.

The journal of physical chemistry. A

Staniforth M, Young JD, Stavros VG.
PMID: 26299435
J Phys Chem A. 2015 Dec 17;119(50):12131-7. doi: 10.1021/acs.jpca.5b05891. Epub 2015 Aug 31.

The time-resolved photofragmentation dynamics of 4-tert-butylcatechol were studied following one photon excitation to the S1 (1(1)ππ*) state with ultraviolet radiation in the range 260 ≤ λ ≤ 286 nm. The preparation of an aligned molecular ensemble via photoexcitation leads...

Altered Rich-Club and Frequency-Dependent Subnetwork Organization in Mild Traumatic Brain Injury: A MEG Resting-State Study.

Frontiers in human neuroscience

Antonakakis M, Dimitriadis SI, Zervakis M, Papanicolaou AC, Zouridakis G.
PMID: 28912698
Front Hum Neurosci. 2017 Aug 30;11:416. doi: 10.3389/fnhum.2017.00416. eCollection 2017.

Functional brain connectivity networks exhibit "small-world" characteristics and some of these networks follow a "rich-club" organization, whereby a few nodes of high connectivity (hubs) tend to connect more densely among themselves than to nodes of lower connectivity. The Current...

Laser damage mechanisms in conductive widegap semiconductor films.

Optics express

Yoo JH, Menor MG, Adams JJ, Raman RN, Lee JR, Olson TY, Shen N, Suh J, Demos SG, Bude J, Elhadj S.
PMID: 27505731
Opt Express. 2016 Aug 08;24(16):17616-34. doi: 10.1364/OE.24.017616.

Laser damage mechanisms of two conductive wide-bandgap semiconductor films - indium tin oxide (ITO) and silicon doped GaN (Si:GaN) were studied via microscopy, spectroscopy, photoluminescence (PL), and elemental analysis. Nanosecond laser pulse exposures with a laser photon energy (1.03...

Torsional Motion of the Chromophore Catechol following the Absorption of Ultraviolet Light.

Physical review letters

Young JD, Staniforth M, Paterson MJ, Stavros VG.
PMID: 26196796
Phys Rev Lett. 2015 Jun 12;114(23):233001. doi: 10.1103/PhysRevLett.114.233001. Epub 2015 Jun 08.

The ability to probe energy flow in molecules, following the absorption of ultraviolet light, is crucial to unraveling photophysical phenomena. Here we excite a coherent superposition of vibrational states in the first excited electronic state (S1) in catechol, resulting...

Influence of graphene coating on speckle-pattern rotation of light in gyrotropic optical fiber.

Optics letters

Kuzmin DA, Bychkov IV, Shavrov VG.
PMID: 25768139
Opt Lett. 2015 Mar 15;40(6):890-3. doi: 10.1364/OL.40.000890.

In the present work, change in speckle-pattern of linearly polarized light passed through graphene-covered optical fiber placed in external magnetic field is investigated. The possibility of magnetic speckle-pattern rotation suppression and inverse speckle-pattern rotation effect is shown. This effect...

The stability of the TIM-barrel domain of a psychrophilic chitinase.

Biochemistry and biophysics reports

Stavros P, Malecki PH, Theodoridou M, Rypniewski W, Vorgias CE, Nounesis G.
PMID: 29124173
Biochem Biophys Rep. 2015 Jul 30;3:108-116. doi: 10.1016/j.bbrep.2015.07.016. eCollection 2015 Sep.

Chitinase 60 from the psychrophilic bacterium Moritella marina (MmChi60) is a four-domain protein whose structure revealed flexible hinge regions between the domains, yielding conformations in solution that range from fully extended to compact. The catalytic domain is a shallow-grooved...

A novel biomarker of amnestic MCI based on dynamic cross-frequency coupling patterns during cognitive brain responses.

Frontiers in neuroscience

Dimitriadis SI, Laskaris NA, Bitzidou MP, Tarnanas I, Tsolaki MN.
PMID: 26539070
Front Neurosci. 2015 Oct 20;9:350. doi: 10.3389/fnins.2015.00350. eCollection 2015.

The detection of mild cognitive impairment (MCI), the transitional stage between normal cognitive changes of aging and the cognitive decline caused by AD, is of paramount clinical importance, since MCI patients are at increased risk of progressing into AD....

Staining neurons with Golgi techniques in degenerative diseases of the brain.

Neural regeneration research

Baloyannis SJ.
PMID: 26109934
Neural Regen Res. 2015 May;10(5):693-5. doi: 10.4103/1673-5374.156950.

No abstract available.

Topological Filtering of Dynamic Functional Brain Networks Unfolds Informative Chronnectomics: A Novel Data-Driven Thresholding Scheme Based on Orthogonal Minimal Spanning Trees (OMSTs).

Frontiers in neuroinformatics

Dimitriadis SI, Salis C, Tarnanas I, Linden DE.
PMID: 28491032
Front Neuroinform. 2017 Apr 26;11:28. doi: 10.3389/fninf.2017.00028. eCollection 2017.

The human brain is a large-scale system of functionally connected brain regions. This system can be modeled as a network, or graph, by dividing the brain into a set of regions, or "nodes," and quantifying the strength of the...

Showing 1 to 12 of 540 entries