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Efficacy assessment of peracetic acid in the removal of synthetic 17α-ethinyl estradiol contraceptive hormone in wastewater

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Journal of Environmental sciences 2020年第3期32卷 1-8页

作者： Rita maurício Flávia semedo Rita Dias Joao P.Noronha Leonor Amaral michiel A.Daam Antonio P.mano mário s.diniz CENsE Center for Environmental and Sustainability ResearchNOVA School of Science and TechnologyNOVA University LisbonQuinta da Torre2829-516 CaparicaPortugal Department of Environmental sciences and Engineering NOVA School of Science and TechnologyNOVA University LisbonQuinta da Torre2829-516 CaparicaPortugal REQUImTE/FCT NOVA School of Science and TechnologyNOVA University LisbonQuinta da Torre2829-516 CaparicaPortugal Biotox Lab UCIBIODepartment of ChemistryNOVA School of Science and TechnologyNOVA University LisbonQuinta da Torre2829-516 CaparicaPortugal

Increasing concerns have been raised on endocrine disrupting chemicals like the sex hormone 17 a-ethinylestradiol(EE2),the more since traditional wastewater(WW) treatments appear to be ineffective for their *** efficacy of the relatively novel disinfectant peracetic acid(PAA) in EE2 removal was evaluated,as well as its potential effects on WW quality *** treatments tested for EE2 removal were also evaluated in terms of toxicity,through the determination of biochemical responses(antioxidant enzymes,lipid peroxidation and vitellogenin induction) using zebrafish(Danio rerio) as a biological *** contact times less than 20 min appeared insufficient regardless of the PAA dose tested,but a 100% EE2 removal was attained at a PAA concentration of 15 mg/L with a contact time of20 *** suspended solids,chemical oxygen demand and pH in PAA treatments remained well within levels set in European legislation for WW ***2 induced signific ant increased vitellogenin(VTG) levels in both female and male fish,indic ating increased estrogenic activity,especially in males suggesting an endocrine disruption *** the addition of PAA(15 mg/L),however,VTG levels in both sexes returned to control *** this PAA treatment showed increased levels of the antioxidant enzyme catalase,the lipid peroxidation levels were similar or even lower than in *** the results suggest that the use of PAA appears a promising way forward as a less toxic alternative to chlorine disinfection with high efficiency in the removal of EDC like EE2.

关键词： EE2 Wastewater treatment Zebrafish Biomarkers

Gross Chemical Profile and Calculation of Nitrogen-to-Protein Conversion Factors for Five Tropical seaweeds

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American Journal of Plant sciences 2011年第3期2卷 287-296页

作者： Graciela s.diniz Elisabete Barbarino João Oiano-Neto sidney Pacheco sergio O.Lourenco Departamento de Biologia marinha Universidade Federal FluminenseNiteróiBrazil Laboratório de Cromatografia Líquida Embrapa Agroindústria de AlimentosRio de JaneiroBrazil Instituto Virtual Internacional de mudanças Globais Universidade Federal do Rio de Janeiro—UFRJ/IVIGRio de JaneiroBrazil

Despite decades of research on marine algae, there are still significant gaps in basic knowledge about chemical composition of these organisms, especially in tropical environments. In this study, the amino acid composition and contents of total nitrogen, phosphorus, lipid, carbohydrate and protein were determined in Asparagopsis taxiformis, Centroceras clavulatum, Chaetomorpha aerea, sargassum filipendula and spyridia hypnoides. The seaweeds showed low lipid contents (lower than 5.5% d.w. in all species) and were rich in carbohydrates (more than 16% d.w. in all seaweeds). The percentage of nitrogen, phosphorus and protein varied widely among species, which red algae showed the highest con-centrations. The amino acid composition was similar among the seaweeds, which glutamic acid, aspartic acid and leu-cine as the most abundant. All species are poor in histidine. An average of 24.2% of the total nitrogen is non-proteinaceous. From data of total amino acid and total nitrogen, specific nitrogen-to-protein conversion factors were calculated for each species. The nitrogen-to-protein conversion factors calculated ranged from 4.51 to 5.21, with an overall average of 4.86. These findings show that the traditional conversion factor of 6.25 should be avoided for seaweeds, since it overestimates the actual protein content.

关键词： Nitrogen-to-Protein Conversion Factors Protein Amino Acid seaweeds Element Composition Tropical Environment

Electrical cardioversion for supraventricular arrhythmias in octagenarians

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Journal of Geriatric Cardiology 2019年第12期16卷 902-904页

作者： Felipe L.malafaia Patrícia O.Guimarães márcio C.sampaio Pedro G.m.de Barros e silva Renato D.Lopes Juliano V.Custódio miguel da s.diniz Jose C.T.Garcia Valter Furlan samaritano Paulista Hospital São PauloBrazil Duke Clinical Research Institute Duke UniversityDurhamNCUnited States

Atrial fibrillation(AF)is the most common arrhythmia in the elderly and its incidence increases with aging.[1]Electrical cardioversion is used as a strategy for rhythm control in patients with supraventricular *** octagenarians,there are challenges associated with the indication for electrical cardioversion,such as the use of appropriate sedation and anticoagulant *** decisions in clinical practice for these patients derive from observational data and personal experience,since octagenarians represent a minority of patients included in randomized clinical *** evidence is available regarding the clinical context of electrical cardioversion in this vulnerable ***,we aimed to describe the clinical profile of octagenarians undergoing electrical cardioversion in a cardiology reference center from 2014 to 2018.

关键词： Atrial fibrillation Electrical cardioversion Octagenarians

Best management practices to reduce soil erosion and change water balance components in watersheds under grain and dairy production

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International soil and Water Conservation Research 2024年第1期12卷 121-136页

作者： Thais Palumbo silva Danielle Bressiani Éderson diniz Ebling Josémiguel Reichert soil science of Federal University of santa maria Roraima Avenuenumber 1000CEP:97.105-900Santa MariaRio Grande do SulBrazil Technological Development Center Federal University of PelotasGomes Carneiro Streetnumber 1CEP:96010-610PelotasRio Grande do SulBrazil Department of soil Federal University of Santa MariaCampus Universitário s/nCEP 97.105-900Santa MariaRio Grande do SulBrazil

soil erosion and sedimentation are among the most serious global environmental *** and water conservation measures have been proven effective ways to reduce soil *** objective of this study was to evaluate the impact of three approaches of soil and water conservation measures(soil management,vegetative measures,and structural practices)on soil erosion and water balance of two paired agricultural watersheds located in southern *** and sediment monitoring was carried out from 2016 to 2019 in the two small paired agricultural watersheds;called North watershed(NW)and south watershed(sW).modeling using soil&Water Assessment Tool(sWAT)was performed to simulate individual(nine scenarios)and combined(four scenarios)best management practices(BmPs),by including the three *** the nine individual BmP scenarios,the most effective in reducing soil erosion was crop rotation and cover crop(sediment yield,sY,reduction of 38.4 for NW,and 28.8%for sW).Among the four combined scenarios,the association of all conservation approaches was the most effective in reducing soil erosion(sY reduction of 46 for NW,and 41.5%for sW),followed by the vegetative measures scenario(sY reduction of 43.5 and 34.1%for NW and sW).All combined scenarios increased infiltration and subsurface water components,and decreased surface *** findings of this study can help farmers and policymakers choosing appropriate BmPs to reduce current soil erosion problems and promote water and soil conservation.

关键词： Agricultural hydrology Conservation measures sWAT subtropical watersheds

An online infertility clinical decision support system

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Asian pacific Journal of Reproduction 2017年第5期6卷 221-225页

作者： Fabio diniz de souza msc in Biomedical Engineering Pontificia Universidad Católica del PerúPerú

Objective:To explore some possibilities of computer applications in medicine, and to discuss an online infertility clinical decision support ***: Retrospective data were obtained from 52 couples, and then entered into the online tool. Both its results and the initial diagnoses obtained by the treating physicians were compared with the final diagnoses established by laparoscopy and other diagnostic tests (semen analysis, hormone analysis, endometrial biopsy, ultrasound and hysteroscopy). The initial hypothesis of the research was that the online tool's output was statistically associated with the final diagnoses. In order to verify that hypothesis, achi-square (x2) test with Yates' correction for continuity (Ps performed to verify if the online tool's and the doctor's diagnoses were statistically associated with the final ***: Four etiological factors were present in more than 50% of the couples (ovarian, tubal-peritoneal, uterine, and endometriosis). The statistical results confirmed the research hypothesis for eight out of the nine etiological factors (ovarian, tubal-peritoneal, uterine, cervical, male, vaginal, psychosomatic, and endometriosis;Psince there were no cases related to the immune factor in the sample, further clinical data are necessary in order to assess the online tool's performance for that ***: The online tool tends to present more false-positives than false-negatives, whereas the expert physician tends to present more false-negatives than false-positives. Therefore, the online tool and the doctor seem to complement each other. Finally, the obtained results suggest that the infertility online tool discussed herein might be a useful research and instructional tool.

关键词： Computer applications Expert systems Reproductive medicine Infertility

Twenty-four hours intraocular pressure in keratoconic eyes assessed by applanation tonometry and Tono-Pen AVIA

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International Journal of Ophthalmology(English edition) 2022年第1期15卷 52-58页

作者： Rafael Vidal merola sebastião Cronemberger Artur William Veloso Alberto diniz-Filho Nassim Calixto Glaucoma service of são Geraldo Eye Hospital Clinic HospitalFederal University of Minas GeraisBelo HorizonteBelo Horizonte 30130-100State of Minas GeraisBrazil

AIm:To assess intraocular pressure(IOP)during the daily curve of intraocular pressure(DCPo)in keratoconic eyes and compare Goldmann applanation tonometer(GAT),without and with astigmatism correction(n GAT and c GAT)and Tono-Pen AVIA(TPA)assessment ***:Thirty-nine keratoconic eyes of 24 patients were *** was evaluated with five IOP measurements;four were performed with a GAT(n GAT and c GAT),and a Tono-Pen AVIA(TPA)at various times throughout the ***:mean IOP DCPo values(mm Hg)were:n GAT,9.9±2.6;c GAT,11.3±2.6;TPA 12.3±*** IOP DCPo differences(mm Hg)and spearman’s correlation coefficients were as follows:c GATc-n GAT,1.32±1.31,r_(s)=0.879(Ps)=0.723(Ps)=0.730(Pman analysis for agreement between c GAT-TPA and n GAT-TPA mean IOP DCPo measurements revealed a mean difference of 1.02(95%CI,0.35-1.70)and 2.35(95%CI,1.62-3.07)mm Hg,*** analysis yielded the following equation:TPA IOP=5.49+0.775×c GAT-0.015×ACD-0.299×corneal astig matism,which allowed us to infer TPA IOP values from other ***:In keratoconic eyes,IOP peaks of DCPo measurements are identified at 6 a.m.,independent of the *** mean DCPo values are:TPA>c GAT>n *** TPA measures are predictive of c GAT values,adjusted according to anterior chamber depth and corneal astigmatism.

关键词： intraocular pressure keratoconus tonometry

Computational fluid dynamics applied to high temperature hydrogen separation membranes

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Frontiers of Chemical science and Engineering 2012年第1期6卷 3-12页

作者： Guozhao JI Guoxiong WANG Kamel HOOmAN suresh BHATIA Joao C. diniz da COsTA school of Chemical Engineering the University of Queensland Brisbane 4072 Australia school of mechanical and mining Engineering the University of Queensland Brisbane 4072 Australia

This work reviews the development of computational fluid dynamics （CFD） modeling for hydrogen separation, with a focus on high temperature membranes to address industrial requirements in terms of membrane systems as contactors, or in membrane reactor arrange- ments. CFD modeling of membrane,.s attracts interesting challenges as the membrane provides a discontinuity of flow, and therefore cannot be solved by the Navier-stokes equations. To address this problem, tile concept of source has been introduced to understand gas flows on both sides or domains （feed and permeate） of the membrane. This is an important solution, as the gas flow and concentrations in the permeate domain are intrinsically affected by the gas flow and concentrations in the feed domain and vice-versa. In turn, the source term will depend on the membrane used, as different membrane materials comply with different transport mechanisms, in addition to varying gas selectiv- ity and fluxes. This work also addresses concentration polarization, a common effect in membrane systems, though its significance is dependent upon the performance of the membrane coupled with the operating conditions. Finally, CFD modeling is shifting from simplified single gas simulation to industrial gas mixtures, when the mathematical treatment becomes more complex.

关键词： membrane gas separat:ion computationalfluid dynamics concentration polarization hydrogen

A multi-integrated approach on toxicity effects of engineered TiO2 nanoparticles

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Frontiers of Environmental science & Engineering 2015年第5期9卷 793-803页

作者： Ana PICADO susana m. PAIXAO Liliana mOITA Luis sILVA mario s. diniz Joana LOURENCO Isabel PEREs Luisa CAsTRO Jose Brito CORREIA Joana PEREIRA Isabel FERREIRA Antonio Pedro Alves mATOs Pedro BARQUINHA Elsa mENDONCA LNEG-National Laboratory of Energy and Geology I.P. Lisbon 1649-038 Portugal REQUImTE Chemistry Department Fine Chemistry and Biotechnology Center Faculty of Sciences and Technology New University of Lisbon Caparica 2829-516 Portugal ImAR-Ocean Institute Department of Sciences and Environmental Engineering Faculty of Sciences and Technology New University of Lisbon Caparica 2829-516 Portugal CENImAT/I3N and Department of materials science Faculty of Sciences and Technology New University of Lisbon Caparica 2829-516 Portugal Pathological Anatomy Curry Cabml Hospital Lisbon 1069-166 Portugal CEsAm Faculty of Sciences Lisbon University Lisbon 1749-016 Portugal

The new properties of engineered nanoparti- cles drive the need for new knowledge on the safety, fate, behavior and biologic effects of these particles on organisms and ecosystems. Titanium dioxide nanoparticles have been used extensively for a wide range of applica- tions, e.g, self-cleaning surface coatings, solar cells, water treatment agents, topical sunscreens. Within this scenario increased environmental exposure can be expected but data on the ecotoxicological evaluation ofnanoparticles are still scarce. The main purpose of this work was the evaluation of effects of TiO2 nanoparticles in several organisms, covering different trophic levels, using a battery of aquatic assays. Using fish as a vertebrate model organism tissue histological and ultrastructural observations and the stress enzyme activity were also studied. TiO2 nanoparticles （Aeroxide~ P25）, two phase composition ofanatase （65%） and rutile （35%） with an average particle size value of 27.64-11 nm were used. Results on the ECs0 for the tested aquatic organisms showed toxicity for the bacteria, the algae and the crustacean, being the algae the most sensitive tested organism. The aquatic plant Lemna minor showed no effect on growth. The fish Carassius auratus showed no effect on a 21 day survival test, though at a biochemical level the cytosolic Glutathione-s-Transferase total activity, in intestines, showed a general significant decrease （p〈0.05） after 14 days of exposure for all tested concentrations. The presence of TiO2 nanoparticles aggregates were observed in the intestine lumen but their internalization by intestine cells could not be confirmed.

关键词： ecotoxicity enzymatic analysis histology,transmission electron microscopy (TEm) TiO2-nanoparti-cles

Partitioning between primary and secondary metabolism of carbon allocated to roots in four maize genotypes under water deficit and its effects on productivity

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The Crop Journal 2015年第5期3卷 379-386页

作者： Alyne Oliveira Lavinsky Paulo Cesar magalhaes Roniel Geraldo avila mariana melo diniz Thiago Correa de souza Embrapa milho e sorgo Sete LagoasMGCEP:35701-970Brazil Universidade Federal de Lavras LavrasMGCEP 37200-000Brazil Universidade Federal de sao Joao Del Rey Sete LagoasMGCEP 35701-970Brazil Universidade Federal de Alfenas AlfenasMGCEP 37130-000Brazil

Plants may respond to drought by altering biomass allocation to shoots and roots or by changing the metabolic activities in these organs. To determine how drought changes the partitioning of carbon allocated to growth and secondary metabolism in maize roots and how it affects photosynthesis(A) and productivity in maize, we evaluated leaf gas exchange, yield componentes, root morphology, and primary and secondary metabolites including total soluble sugars(Tss), starch(s), phenolics(PHE), and lignin(LIG). Data were collected from pot-grown plants of four maize genotypes: BRs 1010 and 2B710(sensitive genotypes) and DKB390 and BRs1055(tolerant genotypes) under two soil water tensions: field capacity(FC,-18 kP a) and water deficit(WD,-138 kP a). WD was applied at the pre-flowering stage for 12 days and then the water supply was restored and maintained at optimum levels until the end of the cycle. For genotype BRs 1055 under FC, the greatest A did not result in greater grain biomass(DGB) because the accumulated photoassimilates had already filled the cells, and thus the excessive Tss synthesized in leaves was allocated to roots in large amounts. However, the sharp decrease in A caused by WD imposition in this genotype did not affect the influx pressure of leaf Tss, which was due largely to conversion of primary metabolites to PHE compounds to increase the length of fine roots. In leaves of DKB390 under WD, both s and Tss were reduced, whereas PHE were increased to prevent excessive water loss and xylem cavitation. Under WD, both BRs1010 and2B710 genotypes displayed reduced allocation of biomass to shoots and roots and LIG content in leaves, as well as lower A and DGB values. In BRs1010 this response was coupled to s decrease in leaves and Tss increase in roots, whereas in 2B710 there was a concomitant s increase in roots.

关键词： starch sugars Lignin Phenols WinRHIZO