Synthesis, characterization and redox behaviour of benzoyldiazenido- and oxorhenium complexes bearing N,N- and S,S-type ligands

The reactions of [ReCl2{eta(2)-N2C(O)Ph}(PPh3)(2)](1) with 2-aminopyrimidine (H(2)Npyrm), 2,2'-bipyridine (bpy) and tetraethylthiuram disulfide (tds), in MeOH upon reflux, lead to the new eta(1)-(benzoyldiazenido)-rhenium(III) complexes [ReCl{eta(1)-N2C(O)Ph}(HNpyrm)(PPh3)(2)](2)and [ReCl2{eta(1)-N2C(O)Ph}(bpy)(PPh3)] (3), and the known oxo(diethyldithiocarbamato)dirhenium(v)complex [Re2O2(mu O){Et2NC(S)S}(4)](4), respectively. The Et2NC(S)S ligands in 4 result from S-S bond rupture of tds molecules. The obtained compounds have been characterized by IR, H-1, P-31{H-1} and C-13{H-1} NMR spectroscopies, FAB(+)-MS, elemental and single-crystal X-ray diffraction (for 2 and 4)analyses. Complex 2 represents the first structurally characterized Re compound derived from 2-aminopyrimidine. Besides, the redox behaviour of 2-4 in CH2Cl2 solution has been studied by cyclic voltammetry, and the Lever electrochemical ligand parameter (E-L)has been estimated, for the first time, for HNpyrm. The electrochemical results are discussed in terms of electronic properties of the Re centres and the ligands

A comunidade cigana e o etnocentrismo da instituição médica de saúde comunitária

info:eu-repo/semantics/publishedVersio

Multifunctional coated textiles for active biological protection

The rising threats to the worldwide security (military and civilian) attest the need to develop efficient and versatile technological solutions to protect the human being [...]info:eu-repo/semantics/publishedVersio

Validity of self-report of oral conditions in older people

Aim: To verify if self-report is a valid instrument to study the clinical oral condition in older people without cognitive deficit. Methods: A Cross-sectional study was conducted with 647 older people from the community, without cognitive deficit, living in Campinas, Brazil. A self-report questionnaire assessing the presence or absence of teeth (edentulism) and use of complete denture was applied, identifying the location of the denture, whether in the upper and/or lower arch. In the same session oral clinical exams were performed, considered the gold standard. The self-report validation was performed by calculating sensitivity, specificity, predictive values, odds ratios and Kappa agreement. Results: There were high percentages of sensitivity (95–99%), specificity (84–97%), positive (81–97%) and negative (95–98%) predictive values, obtaining an elevated level of confidence and quality intrinsic value of self-report. Agreement with the clinical examination was excellent for all variables (greater than 0.80). The likelihood ratios showed compelling evidence that with self-report an edentulous individual (+LR 32), non-edentulous (-LR 0.06) and absence of complete denture (-LR 0.01) could be correctly identified, with moderate evidence to identify the presence and location of complete denture use (+LR 6.5 to 6.9). Conclusion: Self-report is a valid instrument to study the clinical oral condition in the older people of the community

Recrutas da Alegria: promoção da saúde no Hospital Universitário da Universidade Federal do Rio Grande

Anais do 35º Seminário de Extensão Universitária da Região Sul - Área temática: SaúdeO Recrutas da Alegria foi idealizado a partir do olhar dos acadêmicos da área da saúde no ambiente hospitalar, com a intenção de melhorar esse ambiente e desenvolver uma prática mais humanizada. Inúmeras vezes o tecnicismo e o biologicismo dos cursos da saúde tornam seus profissionais muito centrados nos aspectos fisiopatológicos, ficando em segundo plano o atendimento centrado no paciente. Nos últimos anos o palhaço tem gradualmente participado dos espaços hospitalares, com o intuito de promover um espaço de “terapia da alegria”. O programa Recrutas da Alegria desenvolve-se baseado em uma metodologia interdisciplinar, integrando diversas áreas do conhecimento, com a participação dos cursos de medicina, enfermagem, psicologia e fisioterapia estabelecendo ações de ação- reflexão-ação, utilizando-se da figura do clown como promotor destas práticas. O Recrutas da Alegria possibilita aos acadêmicos, através do lúdico, uma melhor percepção da realidade dos pacientes, resultando na conscientização da importância de um olhar mais integral com relação aos pacientes na prática de sua futura profissã

Photocatalytic ozonation of urban wastewater and surface water using immobilized TiO2 with LEDs: Micropollutants, antibiotic resistance genes and estrogenic activity

Photocatalytic ozonation was employed for the first time in continuous mode with TiO2-coated glass Raschig rings and light emitting diodes (LEDs) to treat urban wastewater as well as surface water collected from the supply area of a drinking water treatment plant (DWTP). Different levels of contamination and types of contaminants were considered in this work, including chemical priority substances (PSs) and contaminants of emerging concern (CECs), as well as potential human opportunistic antibiotic resistant bacteria and their genes (ARB&ARG). Photocatalytic ozonation was more effective than single ozonation (or even than TiO2 catalytic ozonation) in the degradation of typical reaction by-products (such as oxalic acid), and more effective than photocatalysis to remove the parent micropollutants determined in urban wastewater. In fact, only fluoxetine, clarithromycin, erythromycin and 17-alpha-ethinylestradiol (EE2) were detected after photocatalytic ozonation, by using solid-phase extraction (SPE) pre-concentration and LC-MS/MS analysis. In surface water, this treatment allowed the removal of all determined micropollutants to levels below the limit of detection (0.01-0.20 ng L(-1)). The efficiency of this process was then assessed based on the capacity to remove different groups of cultivable microorganisms and housekeeping (16S rRNA) and antibiotic resistance or related genes (intI1, blaTEM, qnrS, sul1). Photocatalytic ozonation was observed to efficiently remove microorganisms and ARGs. Although after storage total heterotrophic and ARB (to ciprofloxacin, gentamicin, meropenem), fungi, and the genes 16S rRNA and intI1, increased to values close to the pre-treatment levels, the ARGs (blaTEM, qnrS and sul1) were reduced to levels below/close to the quantification limit even after 3-days storage of treated surface water or wastewater. Yeast estrogen screen (YES), thiazolyl blue tetrazolium reduction (MTT) and lactate dehydrogenase (LDH) assays were also performed before and after photocatalytic ozonation to evaluate the potential estrogenic activity, the cellular metabolic activity and the cell viability. Compounds with estrogenic effects and significant differences concerning cell viability were not observed in any case. A slight cytotoxicity was only detected for Caco-2 and hCMEC/D3 cell lines after treatment of the urban wastewater, but not for L929 fibroblasts.info:eu-repo/semantics/acceptedVersio