72 Result(s)

Article

Krill finder: spatial distribution of sympatric fin (Balaenoptera physalus) and humpback (Megaptera novaeangliae) whales in the Southern Ocean

Fin (Balaenoptera physalus, Linnaeus 1758) and humpback (Megaptera novaeangliae, Borowski 1781) whales feed during the austral summer in Antarctic waters. Despite the spatial (two-dimensional) sympatry of both sp...

F. Alvarez, J. L. Orgeira in Polar Biology (2022)

Chapter

The Biliary Tree

The biliary tree includes the bile ducts and the gallbladder.

M. Dagenais, R. G. Lahaie, F. Alvarez… in The Digestive System: From Basic Sciences … (2022)

Chapter

The Liver

The liver is situated behind the lower right rib cage, under the diaphragm. Therefore, it is typically only palpable during inhalation. Its border feels sharp but flexible in the normal state. It has the shape...

M. Bilodeau, J. Bissonnette, H. Castel… in The Digestive System: From Basic Sciences … (2022)

Article

The ghost vampire: spatio-temporal distribution and conservation status of the largest bat in the Americas

The phantom vampire, Vampyrum spectrum (Chiroptera: Phyllostomidae), is the largest South American flying mammal classified as threatened by the IUCN. Despite the broad distribution of this species across South A...

F. Alvarez, S. Gomes da Silva, L. M. Guevara-Chumacero… in Biodiversity and Conservation (2021)

Article

Using Shapley values to assess the impact of temporary traffic restrictions on NO₂ levels in Madrid urban area

This paper illustrates how Machine Learning techniques can be used to assess the impact of environmental protocols that are sparsely activated over time. A case study is analysed: the impact of a protocol tha...

F. Alvarez, M. Smith in International Journal of Environmental Science and Technology (2021)

Article

Laparoscopic Liver Resection: A South American Experience with 2887 Cases

Laparoscopic liver resections (LLR) have been increasingly performed in recent years. Most of the available evidence, however, comes from specialized centers in Asia, Europe and USA. Data from South America ar...

J. Pekolj, R. Clariá Sánchez, J. Salceda, R. J. Maurette… in World Journal of Surgery (2020)

Article

Silicon-vacancy color centers in diamond microcrystals from ethanol and tetramethoxysilane

Silicon-vacancy color centers in diamond microcrystals were produced by means of a novel proceeding: chemical vapor deposition using a solution of tetramethoxysilane in ethanol as precursor. The use of these p...

E. J. Di Liscia, M. Reinoso, F. Álvarez, H. Huck in Applied Physics A (2019)

Article

Geology and geochemistry of the Atacama Desert

The Atacama Desert, the driest of its kind on Earth, hosts a number of unique geological and geochemical features that make it unlike any other environment on the planet. Considering its location on the wester...

J. Tapia, R. González, B. Townley, V. Oliveros, F. Álvarez… in Antonie van Leeuwenhoek (2018)

Article

An exudate detection method for diagnosis risk of diabetic macular edema in retinal images using feature-based and supervised classification

The present paper aims at presenting the methodology and first results of a detection system of risk of diabetic macular edema (DME) in fundus images. The system is based on the detection of retinal exudates (Ex)...

D. Marin, M. E. Gegundez-Arias, B. Ponte… in Medical & Biological Engineering & Computi… (2018)

Article

Alcohol metabolism is not affected by sleeve gastrectomy

It has been published that patients who underwent gastric bypass surgery have impaired alcohol metabolism, predisposing them to higher rates of intoxication and DUI arrests. Yet the impact of laparoscopic slee...

A. S. Gallo, M. A. Berducci, S. Nijhawan, D. F. Nino, R. C. Broderick… in Surgical Endoscopy (2015)

Chapter and Conference Paper

Classification of Performance in Risk-of-Falls Assessment Based on Accelerometer Data and Feature Boosting

Clinical assessments of risk of falls for the elderly are growing in relevance. This work presents a strategy for the evaluation of the collective capabilities of features and indexes, collected with accelerom...

I. Ghersi, F. Álvarez, M. T. Miralles in VI Latin American Congress on Biomedical E… (2015)

Article

Hepatitis E virus seroprevalence before hematopoietic SCT: a pediatric experience

M Jaber, K Béland, C Rousseau, S Cellot, U Halac, F Alvarez… in Bone Marrow Transplantation (2014)

Article

Synthesis and characterization of new poly(amide)s derived from bis(4-(4-aminophenoxy)phenyl)methylphenylsilane and bis(4-carboxyphenyl)R₁R₂ silane acids

This study describes the synthesis and characterization of a new diamine; bis(4-(4-aminophenoxy)phenyl)methylphenylsilane, which by reaction with bis(4-carboxyphenyl)R₁R₂ silane derivatives, and following the met...

C. A. Terraza, L. H. Tagle, D. Mejías, A. Tundidor-Camba, P. Ortiz… in Polymer Bulletin (2013)

Article

A Unifying Local Convergence Result for Newton's Method in Riemannian Manifolds

We consider the problem of finding a singularity of a differentiable vector field X defined on a complete Riemannian manifold. We prove a unified result for theexistence and local uniqueness of the solution, a...

F. Alvarez, J. Bolte, J. Munier in Foundations of Computational Mathematics (2008)

Article

Minimization of the expected compliance as an alternative approach to multiload truss optimization

We show that a problem of finding the truss of minimum expected compliance under stochastic loading conditions is equivalent to the dual of a special convex minimax problem, and therefore may be efficiently so...

F. Alvarez, M. Carrasco in Structural and Multidisciplinary Optimization (2005)

Article

Hydrogen motions and the α-relaxation in glass-forming polymers: Molecular dynamics simulation and quasi-elastic neutron scattering results

The combination of molecular dynamics simulations and neutron scattering measurements on three different glass-forming polymers (polyisoprene, poly(vinyl ethylene) and polybutadiene) has allowed to establish t...

J. Colmenero, A. Arbe, F. Alvarez, A. Narros, D. Richter, M. Monkenbusch… in Pramana (2004)