Results 41 to 50 of about 2,082,471 (408)

Clival Invasion on Multi-Detector CT in 390 Pituitary Macroadenomas: Correlation with Sex, Subtype and Rates of Operative Complication and Recurrence

open access: yesAmerican Journal of Neuroradiology, 2011
BACKGROUND AND PURPOSE: Clival invasion, a rare but potentially significant complication of pituitary adenoma, is difficult to detect on MR imaging. Because CT is widely used in adjunct guidance of pituitary surgery and it has recently been suggested ...
Xu-zhu Chen   +6 more
semanticscholar   +1 more source

Many-body effects in nuclear structure

open access: yes, 2003
We calculate, for the first time, the state-dependent pairing gap of a finite nucleus (120Sn) diagonalizing the bare nucleon-nucleon potential (Argonne v14) in a Hartree-Fock basis (with effective k-mass m_k eqult to 0.7 m), within the framework of the ...
12   +25 more
core   +1 more source

IQSEC2 Deficiency Results in Abnormal Social Behaviors Relevant to Autism by Affecting Functions of Neural Circuits in the Medial Prefrontal Cortex

open access: yesCells, 2021
IQSEC2 is a guanine nucleotide exchange factor (GEF) for ADP-ribosylation factor 6 (Arf6), of which protein is exclusively localized to the postsynaptic density of the excitatory synapse.
Anuradha Mehta   +7 more
doaj   +1 more source

Comments on ``Lattice Formulation of the Standard Model'' by Creutz. et. al [PDF]

open access: yesPhys.Lett. B413 (1997) 387-390, 1997
The main construction of the paper in the title [hep-lat/9612017] is summarized using more standard particle physics language. Also, a flaw is pointed out and several objections to the more general thoughts expressed by Creutz et. al. are raised.
arxiv   +1 more source

The Sustainability of Quinoa Production in Southern Bolivia: from Misrepresentations to Questionable Solutions. Comments on Jacobsen (2011, J. Agron. Crop Sci. 197: 390–399)

open access: yes, 2012
Reviewing the situation of quinoa production in southern Bolivia, Jacobsen (2011, J. Agron. Crop Sci. 197: 390) argues that the booming export market has a negative effect on the environment and on the home consumption of quinoa, thereby leading to an ...
T. Winkel   +17 more
semanticscholar   +1 more source

Secure direct communication using Einstein-Podolsky-Rosen pairs and teleportation

open access: yes, 2003
A novel scheme for secure direct communication between Alice and Bob is proposed, where there is no need for establishing a shared secret key. The communication is based on Einstein-Podolsky-Rosen pairs and teleportation between Alice and Bob.
101   +25 more
core   +2 more sources

An investigation of visual cues used to create and support frames of reference and visual search tasks in desktop virtual environments [PDF]

open access: yes, 2002
Visual depth cues are combined to produce the essential depth and dimensionality of Desktop Virtual Environments (DVEs). This study discusses DVEs in terms of the visual depth cues that create and support perception of frames of references and ...
Cribbin, T, Macredie, RD, Morar, SS
core   +1 more source

New Tools for Analyzing Quark Mixing [PDF]

open access: yesPhys.Lett.B284:390-393,1992, 1992
We present some new mathematical tools which help to derive information about the quark mass matrices directly from experimental data and to elucidate the structure of these mass matrices.
arxiv   +1 more source

Synthesis, Photophysical Characterization, and Photoinduced Antibacterial Activity of Methylene Blue-loaded Amino- and Mannose-Targeted Mesoporous Silica Nanoparticles

open access: yesMolecules, 2015
Over the last 20 years, the number of pathogenic multi-resistant microorganisms has grown steadily, which has stimulated the search for new strategies to combat antimicrobial resistance. Antimicrobial photodynamic therapy (aPDT), also called photodynamic
Oriol Planas   +6 more
doaj   +1 more source

Search for Anomalous $γγ$ Production at TRISTAN [PDF]

open access: yesPhys.Lett.B303:385-390,1993, 1993
We report on measurements of the total cross section for e+e- --> 2-Gamma for center-of-mass energies between 57.4 and 59.5 GeV, using the AMY detector at the TRISTAN collider. We set new limits on the production of a possible new s-channel resonance decaying into photon pairs.
arxiv   +1 more source

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