Reclassification of the members of the genus Tetrathiobacter Ghosh et al. 2005 to the genus Advenella Coenye et al. 2005.

The taxonomic position of the genera Advenella and Tetrathiobacter was examined. 16S rRNA gene sequence analysis revealed that the two genera are closely related, representing a monophyletic cluster with high sequence similarity (98.1-99.

Variable Lieb-Oxford bound satisfaction in a generalized gradient exchange-correlation functional.

We propose a different way to satisfy both gradient expansion limiting behavior and the Lieb-Oxford bound in a generalized gradient approximation exchange functional by extension of the Perdew-Burke-Ernzerhof (PBE) form. Motivation includes early and recent exploration of modified values for the gradient expansion coefficient in the PBE exchange-correlation functional (cf. the PBEsol functional) and earlier experience with a numerical cutoff for large-s (s proportional to absolute value(vector differential n)/n(4/3)) in a version of the deMon molecular code.

The VYtorin on Carotid intima-media thickness and overall arterial rigidity (VYCTOR) study.

This study assessed the effect of 3 lipid-lowering therapies on the reduction of the carotid intima-media thickness (IMT) in high-risk coronary Mexican patients. The study was a randomized, comparative, and open clinical trial. Ninety high-risk coronary patients were allocated to 3 groups: pravastatin 40 mg, simvastatin 40 mg, and simvastatin 20 mg and ezetimibe 10 mg initially.

Moraxella pluranimalium sp. nov., isolated from animal specimens.

Four unusual Gram-negative, catalase-positive, oxidase-positive, coccus-shaped bacteria isolated from one sheep and three pigs were characterized using phenotypic and molecular genetic methods. On the basis of cellular morphology and biochemical criteria, the isolates were tentatively assigned to the genus Moraxella, although the organisms did not appear to correspond to any recognized species. Comparative 16S rRNA gene sequencing studies demonstrated that the isolates represent a novel subline within the genus Moraxella.

The DOSIMAP, a high spatial resolution tissue equivalent 2D dosimeter for LINAC QA and IMRT verification.

The continual need for more accurate and effective techniques in radiation therapy makes it necessary to devise new control means combining high spatial resolution as well as high dose accuracy. Intensity modulated radio therapy (IMRT) allows highly conformed fields with high spatial gradient and therefore requires a precise monitoring of all the multileaf positions. In response to this need, the authors have developed a new 2D tissue equivalent dosimeter with high spatial resolution.

Streptococcus plurextorum sp. nov., isolated from pigs.

Biochemical and molecular genetic studies were performed on an unknown Gram-positive, catalase-negative, coccus-shaped organism isolated from clinical samples from pigs. On the basis of the results of cellular morphological and biochemical tests, the organism was identified as a streptococcal species. 16S rRNA gene sequence comparisons confirmed its identification as a member of the genus Streptococcus, but the organism was distinct from any recognized species of this genus.

N-[3-(2,6-Dimethylanilino)-1-methylbut-2-enylidene]-2,6-dimethylanilinium chloride.

The title salt, C(21)H(27)N(2) (+)·Cl(-) resulted from the condensation between 2,6-dimethyl-aniline and acetyl-acetone in acidified ethanol. The bulky cation is stabilized in a β-imino-enamine tautomeric form, and presents a W-shaped conformation. The benzene rings are arranged almost parallel, with a dihedral angle of 6.

Differences in early postoperative complications in elective and emergency heart transplantation.

Introduction And Objectives: The immediate postoperative period is a critical phase in heart transplantation. Severe complications occur that may influence short-term and medium-term morbidity and mortality in these patients. The aim of this study was to analyze the incidence of severe complications in emergency and nonemergency transplantations.

An efficient grid-based scheme to compute QTAIM atomic properties without explicit calculation of zero-flux surfaces.

We introduce a method to compute atomic properties according to the "quantum theory of atoms in molecules." An integration grid in real space is partitioned into subsets, omega(i). The subset, omega(i), is composed of all grid points contained in the atomic basin, Omega(i), so that integration over Omega(i) is reduced to simple quadrature over the points in omega(i).

DOSIMAP: a high-resolution 2-D tissue equivalent dosemeter for linac QA and IMRT verification.

New generation of radiation therapy accelerators requires highly accurate dose measurements with high spatial resolution patterns. IMRT is especially demanding since the positioning accuracy of all the multi-leafs should be verified for each applied field and at any incidence. A new 2-D tissue equivalent dosemeter is presented with high spatial resolution that can fulfil these tasks.

Planar tetracoordinate carbons in cyclic semisaturated hydrocarbons.

A series of planar tetracoordinate carbon molecules in cyclic semisaturated hydrocarbons resulting from the combination of the C5(2-) skeleton with saturated hydrocarbon fragments is reported. The electronic stabilization and the bonding situation are studied through the analyses of molecular orbitals and the electron localization function. The magnetic properties are also revised, giving particular attention to the induced magnetic field.

The DosiMap, a new 2D scintillating dosimeter for IMRT quality assurance: characterization of two Cerenkov discrimination methods.

New radiation therapy techniques such as IMRT present significant efficiency due to their highly conformal dose distributions. A consequence of the complexity of their dose distributions (high gradients, small irradiation fields, low dose distribution, ..

Lactobacillus ceti sp. nov., isolated from beaked whales (Ziphius cavirostris).

Biochemical and molecular genetic studies were performed on three isolates of an unknown Gram-positive, catalase-negative and rod-shaped organism isolated from the lungs and liver of two beaked whales. The organisms were tentatively identified as Lactobacillus spp. based on cellular morphology and biochemical tests.

[Analytic epidemiological information of amyotrophic lateral sclerosis].

Introduction: The analytical epidemiological information on amyotrophic lateral sclerosis (ALS) is extensive and is based on case-control studies, selective patient series and few cohort studies that analyze the risk factors for the disease.

Review: The studies found in the literature on analytical epidemiology have been reviewed in an attempt to analyze the methodology, compare their results and comment on the possible biases and confounding factors such as the different roles of the risk factors.

Conclusion: In spite of the extensive information available, the analytical epidemiology of ALS has still not clarified the etiological factors of the disease.

Metformin, arterial function, intima-media thickness and nitroxidation in metabolic syndrome: the mefisto study.

1. Metabolic syndrome (MS) is one of the greatest public health problems in Mexico, where more than 75% of adults in urban populations are overweight or obese. Metabolic syndrome has several comorbidities, which result in a high cardiometabolic risk.

[Cellular therapy in amyotrophic lateral sclerosis].

Introduction: The possible role of stem cells transplantation in therapy for traumatic lesions or for diseases has been outlined in recent years. Amyotrophic lateral sclerosis (ALS) is one of the diseases where cellular therapy may be useful.

Development: The authors make an analytic review of the studies carried out in humans with ALS and in G93A transgenic rodent model of ALS to evaluate the effect of stem cell transplantation.

Troubleshooting time-dependent density-functional theory for photochemical applications: oxirane.

The development of analytic-gradient methodology for excited states within conventional time-dependent density-functional theory (TDDFT) would seem to offer a relatively inexpensive alternative to better established quantum-chemical approaches for the modeling of photochemical reactions. However, even though TDDFT is formally exact, practical calculations involve the use of approximate functional, in particular the TDDFT adiabatic approximation, the use of which in photochemical applications must be further validated. Here, we investigate the prototypical case of the symmetric CC ring opening of oxirane.

Flavobacterium ceti sp. nov., isolated from beaked whales (Ziphius cavirostris).

Three isolates of a Gram-negative, catalase- and oxidase-positive, rod-shaped bacterium, isolated from the lung and liver of two beaked whales, were characterized by phenotypic and molecular genetic methods. Based on cellular morphology and biochemical criteria, the isolates were tentatively assigned to the family Flavobacteriaceae, although they did not appear to correspond to any recognized species. Comparative 16S rRNA gene sequencing showed that the three new isolates shared 100% sequence similarity.

[Experimental models of amyotrophic lateral sclerosis].

Introduction: Amyotrophic lateral sclerosis (ALS) is a serious neurodegenerative disease that affects almost selectively motor neurons. Its ethiopathogeny is not fully understood, although there are several mechanisms that could play a role. It has no curative treatment and just a drug (riluzole) and mechanical ventilation has demonstrated to improve survival of these patients.

[Descriptive epidemiology of amyotrophic lateral sclerosis].

Introduction: ALS descriptive epidemiological information is wide, and is based on hospital registries, selective patients series and community studies of incidence, prevalence and mortality rates.

Review: It has been revised studies found in the literature trying to analyse the methodology looking for approaches for a systematic review on the ALS descriptive epidemiology. The analysed works include on incidence, prevalence and mortality rates studies and we discuss possible biases and confounding factors.

Chemically controlled self-assembly of [2]pseudorotaxanes based on 1,2-bis(benzimidazolium)ethane cations and 24-crown-8 macrocycles.

Cations derived from 1,2-bis(benzimidazolium)ethane can penetrate the cavity of dibenzo-24-crown-8 macrocycles to produce a new family of [2]pseudorotaxanes. These supramolecular structures are held together by a series of charge-assisted hydrogen bonds (+)N-H[dot dot dot]O, ion-dipole and pi-stacking interactions. These new adducts were fully characterised by NMR spectroscopy, ESI mass spectrometry and single-crystal X-ray diffraction.

Characterization of Aerococcus viridans isolates from swine clinical specimens.

We present here the biochemical and genetic characterization and antimicrobial susceptibility of 58 isolates of Aerococcus viridans isolated in pure culture from different clinical specimens of normally sterile body sites of pigs. A. viridans isolates were commonly susceptible to beta-lactam antimicrobials and exhibited a great genetic heterogeneity as determined by pulsed-field gel electrophoresis typing.

Chemical hardness and the discontinuity of the Kohn-Sham exchange-correlation potential.

Chemical hardness, identified as the difference between the vertical first ionization potential I and the vertical electron affinity A, is analyzed in the context of the ionization theorems to derive expressions for its evaluation at different levels of approximation that arise as a direct consequence of the derivative discontinuity of the exchange-correlation potential. The quantities involved in these expressions incorporate indirectly the effects of the discontinuity, but their values may be calculated with any functional of the local density approximation, generalized gradient approximation, or optimized effective potential type, with or without derivative discontinuity, and with or without the correct asymptotic behavior. By comparison with the vertical energy difference values of I and A, which requires the calculation of the N-, (N-1)-, and (N+1)-electron systems, it is found, for a set of 14 closed shell molecules, that the difference between the eigenvalues of the highest occupied molecular orbitals of the N- and (N+1)-electron systems leads to rather accurate values, when the correct asymptotic behavior is incorporated, and that a second-order one-body perturbation approach that only requires information from the N-electron system leads to reasonable values.