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On the relationship between productivity and food chain length at different ecological levels
(UNIV CHICAGO PRESS, 2007-01)
The effects of energy on food web structure have been debated for at least 80 years. Nevertheless, the empirical evidence is meager, especially from terrestrial ecosystems. We analyzed long-term temporal variation in food ...
Tobacco, alcohol, and illicit drug use in adolescents with diabetes mellitus
(2007)
Background: Substance abuse in adolescents with diabetes mellitus (DM) is associated with the development of acute and chronic complications. Objective: To determine the prevalence of alcohol, tobacco, and illicit drug ...
Peroxisome Proliferator-activated Receptors and Alzheimer's Disease: Hitting the Blood–Brain Barrier
(Springer, 2013)
The blood–brain barrier (BBB) is often affected
in several neurodegenerative disorders, such as Alzheimer's
disease (AD). Integrity and proper functionality of the
neurovascular unit are recognized to be critical for ...
Spherical episodic ejection of material from a young star
(2001-05-17)
The exact processes by which interstellar matter condenses to
formyoung stars are of great interest, in part because they bear on
the formation of planets like our own from the material that fails
to become part of the ...
A New Methodology for the Design of Passive Biped Robots: Determining Conditions on the Robot’s Parameters for the Existence of Stable Walking Cycles
(Springer, 2011)
Currently, passive robots are designed following a trial and error process
in which the existence of a stable walking cycle for a given passive robot’s model
is analyzed using Poincaré maps. The standard stability analysis ...
Agressive pediatric myofibromatosis in a two-year-old child
(Elsevier, 2018-06)
Introduction: Aggressive paediatric myofibromatosis is an autosomal recessive disease characterized by fibroblastic proliferation from cells originated in muscle-aponeurotic tissue. Its etiology is unknown, and the average ...
Earthquakes Felt in the Juan Fernandez Islands: Where Are They Coming from?
(Seismological Society of America, 2020)
The Juan Fernandez Islands (JFI) are located in the Pacific Ocean 675 km west of the Chilean coast. This archipelago has historically been affected by large tsunamis. Robinson Crusoe Island (RCI), the main island of the ...
Vibrational study of the complexes pentamethylcyclopenta-dienyldicarbonyl rhenium phosphine and phosphite: ( n5-c5me5)re(c0)2(pr3) r= me, ome, oph
(1992)
A comparison of some structural aspects of these complexes with Cp Re(CO)3 are also discussed. Additionally, the preparation and characterization of the trimethyl phosphite derivative is reported. A complete vibrationalassignment ...
Spiral Arms in the Disk of HD 142527 from CO Emission Lines with ALMA
(2014-04-10)
In view of both the size of its gap and the previously reported asymmetries and near-infrared spiral arms, the
transition disk of the Herbig Fe star HD 142527 constitutes a remarkable case study. This paper focuses on ...
Inhibition of beta-amyloid Aggregation of Ugni molinae Extracts
(Bentham Science Publishers, 2020)
The beta-amyloid peptide (1-42) is a molecule capable of aggregating into neurotoxic structures that have been implicated as potential etiological factors of Alzheimer's Disease. The aim of this study was to evaluate the ...