Results 31 to 40 of about 3,883,996 (359)
The Cost of Perfection for Matchings in Graphs [PDF]
, 2014 Perfect matchings and maximum weight matchings are two fundamental combinatorial structures. We consider the ratio between the maximum weight of a perfect matching and the maximum weight of a general matching.
Brazil, Emilio Vital +3 more
core +1 more source
Neutrinos and Electromagnetic Gauge Invariance [PDF]
Phys.Lett. B388 (1996) 338-345, 1996 It is discussed a recently proposed connection among U(1)$_{\rm em}$ electromagnetic gauge invariance and the nature of the neutrino mass terms in the framework of $\mbox {SU(3)}_C\otimes G_W \otimes {\mbox U(1)}_N$, $G_W$ = SU(3)$_L$, extensions of the Standard Model.
arxiv +1 more source
Diptera, Psychodidae, Phlebotominae Rondani,1840: range extension and new records from lowland Bolivia [PDF]
Check List, 2010 During a field trip to the town of El Carmen in de Department of Santa Cruz we captured 108 specimens of Phlebotominae (Diptera: Psychodidae). Among the specimens examined, we found five species of sand fly comprising four genera. Four species (Lutzomyia
Reginaldo Brazil +4 more
doaj +3 more sources
You Didn't Build That: The Case Against Patentability of Isolated Organisms [PDF]
, 2016 This is the published ...
Brazil, Cliff
core +1 more source
Mitochondrial DNA disorders in neuromuscular diseases in diverse populations
Annals of Clinical and Translational Neurology, EarlyView.Abstract Neuromuscular features are common in mitochondrial DNA (mtDNA) disorders. The genetic architecture of mtDNA disorders in diverse populations is poorly understood. We analysed mtDNA variants from whole‐exome sequencing data in neuromuscular patients from South Africa, Brazil, India, Turkey and Zambia. In 998 individuals, there were two definite
Fei Gao +34 more
wiley +1 more source
A catalog of rotational and radial velocities for evolved stars. IV. Metal-poor stars [PDF]
, 2006 The present paper describes the first results of an observational program intended to refine and extend the existing vsini measurements of metal-poor stars, with anemphasis on field evolved stars. The survey was carried out with the FEROS and CORALIE spectrometers. For the vsini measurements, obtained from spectral synthesis, we estimate an uncertainty
arxiv +1 more source
Frontiers in Immunology, 2017 There is considerable evidence for the effectiveness of mind–body interventions (MBIs) in improving mental and physical health, but the molecular mechanisms of these benefits remain poorly understood.
Ivana Buric +8 more
doaj +1 more source
Arthritis Care &Research, EarlyView.Objective This study analyzed longitudinal trajectories of soluble Flt1 (sFlt1) levels, placenta growth factor (PlGF) levels, and sFlt1:PlGF ratios in a cohort of pregnant patients with systemic lupus erythematosus (SLE). Methods Blood samples were collected (14–18, 24–26, 30–32, 34–36, and 38–40 weeks), stored at −80°C, and evaluated for serum levels ...
Nilson R. de Jesús +7 more
wiley +1 more source
Issues and Challenges in Open and Distance e-Learning: Perspectives from the Philippines
International Review of Research in Open and Distributed Learning, 2016 Rapid advances in information and communications technology in the digital age have brought about significant changes in the practice of distance education (DE) worldwide.
Patricia Brazil Arinto
doaj +1 more source
Advanced Engineering Materials, EarlyView.This study presents the development and characterization of injectable nanocomposite hydrogels based on N‐succinyl chitosan, oxidized guar gum, and bacterial cellulose nanofibers. Emphasizing enhanced mechanical properties and biocompatibility, the hydrogels exhibit fast gelation, improved structural integrity, and reduced swelling. Their potential for
Raimundo Nonato Fernandes Moreira Filho +8 more
wiley +1 more source