Results 101 to 110 of about 183,471 (224)

Impact of Power Allocation and Antenna Directivity in the Capacity of a Multiuser Cognitive Ad Hoc Network [PDF]

open access: yes, 2012
This paper studies the benefits that power control and antenna directivity can bring to the capacity of a multiuser cognitive radio network. The main objective is to optimize the secondary network sum rate under the capacity constraint of the primary ...
Alfonso, V.   +3 more
core   +1 more source

Liophis jaegeri [PDF]

open access: yes, 2008
Number of Pages: 4Integrative BiologyGeological ...
Dixon, James R., Tipton, Bob L.
core   +1 more source

Irreversible Processes in a Universe modelled as a mixture of a Chaplygin gas and radiation

open access: yes, 2003
The evolution of a Universe modelled as a mixture of a Chaplygin gas and radiation is determined by taking into account irreversible processes. This mixture could interpolate periods of a radiation dominated, a matter dominated and a cosmological ...
A. A. Coley   +21 more
core   +1 more source

Why the Initial Infinite Singularity of the Universe is Not There [PDF]

open access: yes, 2009
We "explain", using a Classical approach, how the Universe was created out of "nothing", i.e., with no input of initial energy. This is a Universe with no-initial infinite singularity of energy density.Comment: International Journal of Theoretical ...
Berman, Marcelo Samuel
core   +1 more source

Intranasal Glioma with Post-Endoscopic Resection in 1 Year Old Infant: Case Report and Literature Review*

open access: yesBrazilian Neurosurgery
Introduction Nasal gliomas - or nasal glial heterotopias - are rare congenital malformations, which correspond to 5% of the congenital nasal masses.
Maria Eduarda Turczyn De Lucca   +7 more
doaj   +1 more source

First reports of computed tomographic colonography for the screening of colorectal polyps in acromegalic patients [PDF]

open access: yes, 2008
*Aim:* To analyze the CTC performance for the screening of colorectal polyps in acromegalic patients. *Materials and Methods:* A prospective study of 21 acromegalic patients, 12 male and 9 female, average age 49, who underwent CTC ...
Anke Boeving   +7 more
core   +1 more source

Cosmological model with non-minimally coupled fermionic field

open access: yes, 2007
A model for the Universe is proposed whose constituents are: (a) a dark energy field modeled by a fermionic field non-minimally coupled with the gravitational field, (b) a matter field which consists of pressureless baryonic and dark matter fields and (c)
Capozziello S.   +6 more
core   +1 more source

Traumatic Neuroma Following Sagittal Split Osteotomy of the Mandible [PDF]

open access: yes, 2007
A 16-year-old male underwent bilateral sagittal split osteotomy of the mandible to correct a mandibular deficiency. Twenty-one years later, a routine panoramic radiograph revealed a radiolucent lesion on the left side of the mandible.
Almeida, Luis Eduardo   +4 more
core   +1 more source

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