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Article
Generalization: strategies and representations used by sixth to eighth graders in a functional context
We conducted a descriptive exploratory study in which we analyzed 313 sixth to eighth grade students’ answers to a word problem, accompanied by diagrams, involving generalization in an algebraic functional con...
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Article
Microfibers of polylactic acid with polypyrrole particles with ultrahydrophobic surface
This work presents the formation of hybrid electrospun fibers of polylactic acid (PLA) with plasma synthesized polypyrrole (PPy) particles inside with the objective to prepare fibers with controlled hydrophobi...
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Article
Chemical interactions of heparin in porous polypyrrole, an example of drug–carrier destructive interaction
Plasma polypyrrole doped with iodine (PPy/I) and heparin (Hp) has been used as drugs in different ways in the human body. In this work, Hp was inserted into porous PPy/I to prepare biocompatible mixtures to po...
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Chapter
Visualization Abilities and Complexity of Reasoning in Mathematically Gifted Students’ Collaborative Solutions to a Visualization Task: A Networked Analysis
We analyze the solutions given by secondary school mathematically gifted students to a collaborative task designed to promote the development of students’ competence of visualization. Each student was provided...
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Article
Transgenic mouse model reveals an unsuspected role of the acetylcholine receptor in statin-induced neuromuscular adverse drug reactions
High cholesterol levels are an established risk factor for cardiovascular disease (CVD), the world's leading cause of death. Inhibitors of 3-hydroxy-3-methylglutaryl-coenzyme A reductase (statins) are prescrib...
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Chapter
Seawater Intrusion in the Coastal Aquifer of Guanahacabibes, Pinar del Río, Cuba
A considerable part of the aquifers in the world are located in hydrographical open basins, where a contact of the fresh ground water co-exists with the sea water, the latent danger of a marine intrusion (cont...
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Article
CYP2D6 genotype and debrisoquine hydroxylation phenotype in Cubans and Nicaraguans
CYP2D6 genotype and debrisoquine metabolic ratio (MR) were analyzed in 133 Nicaraguan Mestizos (NMs) and 260 Cubans divided into Cuban Mestizos (CMs) and White Cubans (WCs). The frequencies of poor metabolizers (...
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Article
The role of d-orbital polarization on rhodium cluster collisions
The effects due to d-orbital polarization in collision processes between a single rhodium atom and a 12 atom rhodium cluster are investigated by means of ab initio molecular dynamics. For the initial configurati...
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Article
Collisions between a single gold atom and 13 atom gold clusters: an ab initio approach
Collision processes between a single gold atom and a gold cluster are investigated by means of ab initio techniques. The targets we consider are minimum energy 13 gold atom clusters. The kinetic energy of the...
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Article
On the determination of the potential function from given orbits
The paper deals with the problem of finding the field of force that generates a given (N − 1)-parametric family of orbits for a mechanical system with N degrees of freedom. This problem is usually referred to as ...
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Article
High EPHB2 mutation rate in gastric but not endometrial tumors with microsatellite instability
The EPH/EFN family of receptor tyrosine kinases regulates cell adhesion and migration and has an important role in controlling cell positioning in the normal intestinal epithelium. Inactivation of EPHB2 has re...
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Article
Rearrangement collisions between gold clusters
Collision processes between two gold clusters are investigated using classical molecular dynamics in combination with embedded atom (EA) potentials, after checking the reliability of the EA results by contrast...
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Article
Is there a change in cytomegalovirus seroepidemiology in Spain?
The aim of this paper is to compare the seroprevalence of cytomegalovirus (CMV) in women in the Autonomous Region of Madrid (ARM) obtained in two different years (1993 and 1999), according to age and seropreva...
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Article
Carboxy-terminally truncated Dengue 4 virus envelope glycoprotein expressed in Pichia pastoris induced neutralizing antibodies and resistance to Dengue 4 virus challenge in mice
We have expressed a recombinant Dengue 4 virus envelope glycoprotein (E4rec), truncated at its C-terminus by 53 amino acids, in Pichia pastoris. The presence of E4rec was confirmed by Western-blot using anti-DEN...
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Article
Correction algorithm for finite sample statistics
Assume in a sample of size M one finds M i representatives of species i with ...
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Article
Seroepidemiological Study of Herpes Simplex Virus in the Female Population in the Autonomous Region of Madrid, Spain
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Chapter and Conference Paper
Cooperative Effects in a One Photon Micromaser with Atomic Coherence
Recent work studied the effects of having two simultaneous and fully inverted atoms in the one photon micromaser cavity, and found that the trap** states were strongly disrupted by these effects for a low ph...
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Chapter and Conference Paper
Measurement Effects on Quantum Optical Systems
We study a model of 3-level atoms passing through a micromaser with a classical externally applied field. We find that the measurement of the outcoming atoms accelerates the trap** of the quantum fields. We ...
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Chapter
Phase Bistability and Squeezing in a Two-photon Micromaser
A quick tutorial review of the coherent and squeezed states is presented. We also derive the master equation for the two-photon micromaser, with atomic coherence. We find that the atomic coherence produces a b...
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Chapter
Hamiltonian Chaos in a Laser Damage Model
We review a simple model of laser damage in the context of Hamiltonian Chaos. A novel method of finding the last KAM is presented, based on a convergence theorem of continued fractions. The critical value of t...
