Linear bijections on von Neumann factors commuting with λ-Aluthge transform

We prove that a bijective linear transformation between von Neumann factors that commute with a λ-Aluthge transform is necessarily a non-zero scalar multiple of an algebra ∗-isomorphism in the case of algebras that are not of type I2. As for type I2 factors, that is, in the particular case of the algebra of 2 by 2 complex matrices, we also present a complete description of those transformations which is a bit different. Namely, non-zero scalar multiples of the sum of an algebra ∗-antiisomorphism and the negative of the trace functional times the identity also show up

Occurrence and behavior of monazite-(Ce) and xenotime-(Y) in detrital and saprolitic environments related to the Serra Dourada granite, Goiás/Tocantins State, Brazil: Potential for REE deposits

This is the author's post-print and is released with a Creative Commons Attribution Non-Commercial No Derivatives License.The definitive published version is available from Elsevier via http://dx.doi.org/10.1016/j.gexplo.2015.03.007 © 2015 Elsevier B.V. All rights reservedThe mode of occurrence, mobility and fractionation of REE have been investigated in the geochemical context of the Serra Dourada Granite, an A-type granitic body located in northern Goi´as State, Brazil. Several analyses were performed to best characterize each mode of occurrence of REE, from fresh rock to its products of alteration such as the saprolite, placers and clayish horizon. In the fresh rock it was found that the REE budget is related to monazite-(Ce), xenotime-(Y), bastn¨asite and allanite. Resistant monazite-(Ce) and xenotime-(Y) withstand fluvial transportation and are concentrated in placers whithin the massif, whereas bastn¨asite and allanite do not. The alluvial sediments contain up to 0.87wt% monazite-(Ce) and 0.46wt% xenotime-(Y). Considering only the heavy minerals, monazite-(Ce), zircon and ilmenite represent 60-80% of the total variability, being monazite-(Ce) and xenotime-(Y) the most important REE carriers. The same minerals are also present, although in lower amounts, in the saprolite. Both qualitative and quantitative electron probe microanalysis were carried out in detrital monazite- (Ce) and xenotime-(Y) to assess their main features and composition. Monazite-(Ce) REE contents are 60wt% in average, whilst REE contents in detrital xenotime-(Y) are 55 wt% in average. Low totals are ascribed to the alteration of the minerals caused by the presence of both organic and inorganic ligands present in the system. The results support the idea that REE are mobile under supergene conditions and during granite weathering, tending to be higher and more fractionated towards the products of alteration (saprolite, alluvial sediments and clayish horizon). REE2O3 contents in the fresh granite, saprolite, alluvial sediments and clayish horizon are 0.07, 0.21, 1.2 and 0.11wt% respectively, the clayish horizon being HREE-selective. Placer deposits and the clayish horizon tend to occur in low-slope areas within the Massif, where deposition and accumulation is more favorable. The saprolite occurs preferably in high-slope areas formed in situ at the expense of the granite. The placer deposits could be exploited, but their occurrence is more restricted and local. The saprolite has the advantage of covering extensive areas widely distributed over the granite. Currently a private company, the Serra Verde Mining, posses the mining claims in the area to exploit the REE associated with the saprolite, under the model of ion-adsorption type deposits

PEGylated cationic liposome - DNA nanoparticle assembly in cell culture media: pathway effects and clues to enhanced control and transfection efficiency optimization

XII Spanish-Portuguese Conference on Controlled Drug DeliveryCationic Liposome – DNA nanoparticles constitute a promising approach for safe and efficient delivery of genes for therapeutic applications. In order to be used in vivo, these particles can be coated with an inert and hydrophilic polymer, such as polyethylene-glycol (PEG), which improves blood circulation time by providing steric stabilization against removal by the immune system. In this work we study the influence of the initial salt concentration, which controls the electrostatic atraction between cationic liposomes and anionic DNA, on the structure of PEGylated CL–DNA nanoparticles.info:eu-repo/semantics/publishedVersio

Bone mechanical stimulation with piezoelectric materials

This chapter summarized explores in vivo use of a piezoelectric polymer for bone mechanical stimulatio

Typology of abuse and harassment in domestic work in Portugal

Using an original dataset, our study explores types of abuse and harassment suffered by a sample of domestic workers in Portugal (n=684). Empirical evidence based on multiple correspondence and cluster analyses pointed to three segments of domestic workers: victims of labour abuse related to contract and wages, victims of multiple abuse including mistreatment and also psychological and sexual harassment, and a segment with no occurrence of abuse. Descriptive statistics suggest migrants, especially Brazilian women, prevail in all types of abuse and harassment, but carers of the elderly are often victims of multiple abuse. Domestic workers seem to be protected from the risk of mistreatment by trust related issues and child caring.FCT

Post-Tracheal Extubation Negative Pressure Pulmonary Edema

O edema pulmonar de pressão negativa (EPPN) também descrito na literatura como edema agudo do pulmão pós-obstrutivo ou pós-extubação traqueal, é uma entidade rara, com uma incidência de aproximadamente 0.1 % em doentes anestesiados. Os autores descrevem o caso, ocorrido após extubação traqueal, de um doente submetido a orquidectomia por via laparoscópica sob anestesia geral balanceada. Relatam a fisiopatologia, o padrão radiológico e broncoscópico e as medidas terapêuticas instituídas

Pathway-dependent effects on the formation of bioreducible polycation-DNA polyplexes in saline media

This research is supported by Microfluidic Layer-by-layer Assembly of Cationic Liposome - Nucleic Acid Nanoparticles for Gene Delivery project (032520) co-funded by FCT and the ERDF through COMPETE2020.info:eu-repo/semantics/publishedVersio