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Infrared Spectroscopy of Titania Sol-Gel Coatings on 316L Stainless Steel

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Materials Sciences and Applications 2011年第10期2卷 1375-1382页

作者： Daniela Cordeiro Leite vasconcelos Vilma Conceicao Costa Eduardo Henrique Martins Nunes Antonio Claret Soares Sabioni Massimo Gasparon Wander Luiz vasconcelos Department of Metallurgical and Materials Engineering Federal University of Minas GeraisBelo HorizonteBrasil Department of Physics Federal University of Ouro PretoOuro PretoBrasil School of Earth Sciences The University of QueenslandSt.LuciaAustralia

Sol-gel titania films were deposited on 316L stainless steel using titanium isopropoxide as a chemical precursor. Dip-coating was performed at withdrawal speeds of 6 mm/min, 30 mm/min, and 60 mm/min. Deposited gel films were heat treated in air at 80℃, 100℃, 300℃, and 400℃. The structural evolution of the coatings was evaluated by infrared reflection-absorption spectroscopy. The influence of the withdrawal speed and the heat treatment temperature on the structure of the films was studied by varying the reflectance incidence angle during the infrared experiments and by Glow Discharge Spectrometry. Free functional groups were detected. The results indicate the formation of bidendate bridging coordination of carboxylic acid to titanium. Titanium atoms can also be pentacoordinated according to the processing conditions of the films. We observed a tendency of increasing amounts of OH groups with decreasing reflectance incidence angle. The film hardness was measured via Knoop microindenation hardness test.

关键词： Films Sol-Gel Infrared Spectroscopy Glow Discharge Spectrometry Knoop Hardness

Treatment of acute severe ulcerative colitis using accelerated infliximab regimen based on infliximab trough level:A case report

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World Journal of Clinical Cases 2021年第13期9卷 3219-3226页

作者： Ana Lorena Sousa de vasconcelos Garate Thiara Barcelos Rocha Luciana Rocha Almeida Rodrigo Quera Jaqueline Ribeiro Barros Julio Pinheiro Baima Rogerio Saad-Hossne Ligia Yukie Sassaki Department of Internal Medicine São Paulo State University(Unesp)Medical SchoolBotucatu 18618687São PauloBrazil Inflammatory Bowel Disease Program GastroenterologyMedicine DepartmentClínica Universidad de los AndesSantiago 7550000Chile

BACKGROUND Acute severe ulcerative colitis (ASUC) is a complication of ulcerative colitisassociated with high levels of circulating tumor necrosis factor alpha, due to theintense inflammation and faster stool clearance of anti-tumor necrosis factordrugs. Dose-intensified infliximab treatment can be beneficial and is associatedwith lower rates of colectomy. The aim of the study was to present a case of apatient with ASUC and megacolon, treated with hydrocortisone and acceleratedscheme of infliximab that was monitored by drug trough *** SUMMARYA 22-year-old female patient diagnosed with ulcerative colitis, presented withdiarrhea, rectal bleeding, abdominal pain, vomiting, and distended *** investigation, a positive toxin for Clostridium difficile and colonic dilatationof 7 cm consistent with megacolon were observed. She was treated with oralvancomycin for pseudomembranous colitis and intravenous hydrocortisone forsevere colitis, which led to the resolution of megacolon. Due to the persistentsevere colitis symptoms, infliximab 5 mg/kg was prescribed, monitored by drugtrough level (8.8 μg/mL) and fecal calprotectin of 921 μg/g (< 30 μg/g). Based onthe low infliximab trough level after one week from the first infliximab dose, thepatient received a second infusion at week 1, consistent with the acceleratedregimen (infusions at weeks 0, 1, 2 and 6). We achieved a positive clinical andendoscopic response after 6 mo of therapy, without the need for a *** accelerated infusions can be beneficial in ASUC unresponsive to thetreatment with intravenous corticosteroids. Longitudinal studies are necessary todefine the best therapeutic drug monitoring and treatment regimen for thesepatients.

关键词： Infliximab Acute severe ulcerative colitis Toxic megacolon Ulcerative colitis Inflammatory bowel disease Case report

Natural sources, biosynthesis, biological functions, and molecular mechanisms of shikimic acid and its derivatives

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Asian Pacific Journal of Tropical Biomedicine 2023年第4期13卷 139-147页

作者： Gopalsamy Rajiv Gandhi Alan Bruno Silva vasconcelos Poovathumkal James Antony Monalisa Martins Montalvão Mariana Nobre Farias de Franca Varghese Edwin Hillary Stanislaus Antony Ceasar Dan Liu Division of Phytochemistry and Drug Design Department of BiosciencesRajagiri College of Social SciencesKalamaserryKochi 683104India Laboratory of Biology and Immunology of Cancer and Leishmania Department of MorphologyFederal University of SergipeSão Cristóvão 49100.000SergipeBrazil Nepal Jesuit Society Human Resource Development and Research CentreKathmandu 44600Nepal Postgraduate Program of Health Sciences Federal University of SergipeCampus Prof.João Cardoso NascimentoAracaju 49060.108SergipeBrazil Division of Plant Molecular Biology and Biotechnology Department of BiosciencesRajagiri College of Social SciencesKalamaserryKochi 683104India School of Food and Biological Engineering Chengdu UniversityChengdu 610106China

Shikimic acid is a hydroaromatic compound possessing critical biological properties,such as antibacterial and antiviral *** review mainly focused on shikimic acid and its *** first briefly introduced the sources of shikimic acid and its derivatives and discussed their *** in vitro and in vivo studies indicate that shikimic acid and its derivatives exhibit diverse bioactivities,such as antioxidant,antiviral,anti-inflammatory,antibacterial,hypolipidemic,bone protective,skin protective,neuroprotective,and antidiabetic *** mainly focused on the related molecular ***,the wide range of bioactivities of shikimic acid and its derivatives indicate that a more detailed exploration of their potential for the prevention and treatment of certain diseases is warranted.

关键词： Natural products Shikimate Ginkgo biloba Neuroprotection Inflammation

What is the value of eucalyptus monocultures for the biodiversity of the Atlantic forest? A multitaxa study in southern Bahia, Brazil

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Journal of Forestry Research 2013年第2期24卷 263-272页

作者： Pedro Luís Bernardo da Rocha Blandina Felipe Viana Márcio Zikán Cardoso Amada Mariana Costa de Melo Misonete Gueidneli Cavalcanti Costa Rodrigo Nogueira de vasconcelos Tatiana Bichara Dantas Instituto de Biologia Universidade Federal da Bahia. Rua Bar o de Jeremoabo

Eucalyptus plantations are increasing in Brazil, frequently replacing pastures, but there is still scarce information about its capacity to maintain the fauna of neighbor forest remnants. In this study, we compared descriptors of the communities of leaf litter organisms （lizards, anurans, myriapods, arachnids, orthopterans, coleopterans, and ants） between a large remnant of primary Atlantic Forest and an adjacent eucalyptus monoculture （phase 1）. Then, we compared the same descriptors for leaf litter lizards and anurans, Euglossini bees, and frugivorous butterflies among the largest remnant, small remnants at intermediate regeneration stage, and eucalyptus monocultures that were not adjacent to the largest remnant （phase 2）. Monocultures were sampled immediately before logging. In phase 1, we detected significant differences in structure between the forest and the monoculture in six out of seven communities sampled. Ca. 81% of the species of the landscape were recorded in the forest, but only 54% of these were found also in the monoculture. In phase 2, the structure of two out of four forest communities was significantly different from the structure of small remnants and monocultures. On average, 76% of the species found in the whole landscape were sampled in the forest. Out of this subset, on average 74% of the species were also sampled in small remnants and 68% in monocultures. Findings of the present study point out a moderate capacity of eucalyptus monocultures to harbor species of the forest fauna even when fully grown but highlights the opportunity that they might offer for increasing connectivity in anthropogenic forest landscapes depending on their management.

关键词： Atlantic forest monoculture biodiversity

Governance of Marine Protected Areas： An Approach Using Public Participation Geographic Information Systems--The MARGov Project

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Journal of Environmental Science and Engineering(B) 2013年第1期2卷 25-35页

作者： Marco Painho Tiago H. Moreira de Oliveira Lia vasconcelos New Technologies Laboratory NOVA School of Statistics and Information Management Campolide Campus Lisbon 1070-312 Portugal Science and Environmental Engineering Department Faculty of Science and Technology Caparica 2829-516 Portugal

The MARGov Project consisted in strengthening the interaction among the Professor Luiz Saldanha Marine Park stakeholders, and to collaboratively construct, with social and institutional actors, a governance model for the Marine Park, located in the municipality of Sesimbra （Portugal）. To pursue this goal, a PPGIS （public participation geographic information system） was developed, allowing the interaction, discussion and public participation of the stakeholders and actors involved. This PPGIS emerged as a crowdsourcing tool, with the purpose of assisting the georeferenced contributes from the local users of the Marine Park, regarding several relevant subjects, such as pollution, economic activities, opportunities and threats to the Marine Park, providing visual, analytical, and demonstrative qualities.

关键词： GIS (geographic information systems) PPGIS WebGIS (GIS Web applications) crowdsourcing, marine protected areas.

Paediatric primary care in Germany during the early COVID-19 pandemic:the calm before the storm

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Family Medicine and Community Health 2021年第2期9卷 40-47页

作者： Malte Kohns vasconcelos Katharina Weil Daniela Vesterling-Hörner Mehrsad Klemm Tarik el Scheich Hanna Renk Katharina Remke Hans Martin Bosse Institute for Medical Microbiology and Hospital Hygiene Heinrich Heine University DüsseldorfDüsseldorfGermany Department for General Paediatrics Neonatology and Paediatric CardiologyUniversity Hospital DüsseldorfDüsseldorfGermany Paediatric Practice Dr.med.Vesterling-Hörner DüsseldorfGermany Kinderärzte im Karree LeverkusenGermany Kinderärzte am Zoo DüsseldorfGermany Department of Paediatric Cardiology Pulmonology and Intensive Care MedicineUniversity Children’s Hospital TübingenTübingenGermany

Objectives Globally,the COVID-19 pandemic has a major impact on healthcare *** effects in primary care are *** study aimed to explore changes in consultation numbers and patient management during the COVID-19 pandemic,and to identify challenges for patient *** Survey of paediatric primary care practices on consultation numbers and patient management changes,and semistructured interviews to identify challenges for patient *** and interviews were partially linked in an explanatory sequential design to identify patient groups perceived to be at higher risk for worse care during the *** In and around Düsseldorf,a densely populated area in Western *** primary care facilities are spread over an area with approximately 2 million *** Primary care in Germany is provided through practices run by self-employed specialist physicians that are contracted to offer services to patients under public health insurance which is compulsory to the majority of the *** sample contained 44 paediatric primary care practices in the area,the response rate was 50%.Results Numbers of consultations for scheduled developmental examinations remained unchanged compared with the previous year while emergency visits were strongly reduced(mean 87.3 less/week in March-May 2020 compared with 2019,median reduction 55.0%).Children dependent on developmental therapy and with chronic health conditions were identified as patient groups receiving deteriorated *** patient numbers,including of mildly symptomatic children presenting for health certificates,in combination with increased organisational demands and expected staff outages are priority concerns for the *** Primary care paediatricians offered stable service through the early pandemic but expected strained resources for the upcoming *** guidance on which children should present to primary care and who should be tested would h

关键词： winter storm unchanged

Effectiveness of Laser Therapy (AlGaInP) on Cicatrization of Experimental Cutaneous Wound in Rats

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International Journal of Clinical Medicine 2014年第9期5卷 525-530页

作者： Renata dos Santos vasconcelos Renata Prado vasconcelos Luana Torres Monteiro Melo Carolina Araújo Castro Adriana Rolim Campos Ana Paula Vasconcellos Abdon Department of Biotechnology State University of Ceara (UECE) Fortaleza Brazil Department of Health Sciences University of Fortaleza (UNIFOR) Fortaleza Brazil Department of Medical Sciences Federal University of Ceara (UFC) Fortaleza Brazil Department of Physiology State University of Ceara (UECE) Fortaleza Brazil

The use of laser therapy is one of the most effective tools in the prevention and treatment of skin ulcers. It is an effective treatment choice because it potentiates the trophic regenerative, anti inflammatory, and painkiller effects. This study aimed to assess the effectiveness of low level laser therapy in treating induced cutaneous ulcers in rats. An experimental study using 12 female Wistar rats (Rattus novergicus), weighing between 150 and 250 g, from the room of animal husbandry at the Center of Health Sciences of UNIFOR. Rats underwent surgery to induce cutaneous ulcer. Subsequently, the animals were divided into two randomized groups: 1) Control group;and 2) Experimental group. They received nine applications of AlGaInP laser treatment (power of 30 mW) with an intensity of 4 J/cm2, using the scan method, for 15 seconds over the entire ulcer. The cicatrization process was evaluated from the 1st to 19th postoperative (PO) day, but on alternate days. The results showed that animals treated with laser had less area of cutaneous wound than the control group from the 7th until the 17th postoperative day, highlighting the 7th and the 9th PO with a significant reduction in wound area of 28.8% (p = 0.00) and 23,5% (p = 0.01), respectively. Treatment with the AlGaInP laser was effective in the repair of cutaneous wound when compared to the control group—particularly on the 7th postoperative day.

关键词： Laser Therapy Rats Wound Healing Regeneration

Are models of volumetric production at the diametric distribution and total stand level mutually compatible?

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Journal of Forestry Research 2020年第5期31卷 1691-1698页

作者： Marcos Felipe de Oliveira Valeriano Eder Pereira Miguel Pedro Guilherme de Andrade vasconcelos Mauro Eloi Nappo Humberto Angelo Alba Valeria Rezende Renan Augusto Miranda Matias Leonardo Job Biali Ilvan Medeiros Lustosa Junior Department of Forestry Engineering University of Brasilia(UnB)Brası´liaBrazil Federal Institute of Brasılia(IFB) BrasıliaBrazil

The objective of this work was to compare estimates generated by a diametric distribution model and a total stand model against the pre-cut *** model efficiency was also *** were evaluated from 30 permanent sample plots in a Eucalyptus urophylla stand,comprising 24 sample plots used for model fitting,and six sample plots for *** volume of wood per hectare was estimated for different productive units(sites),using 7 years as the reference *** model adjustment quality was verified by adjustment and precision statistics:the correlation between observed and predicted variables,root mean square error percentage,graphical analysis of residual distribution,and a frequency histogram for classes of relative errors and *** the two-parameter Weibull probability density function adhered to the data for tree evolution in diameter classes for the reference age(7 years)in the different productivity classes,it generated imprecise estimates of the number of ***,it produced inaccurate volumetric production *** total stand model provided reliable projections of production volumes in different productivity classes for both adjustment types,showing compatibility with the pre-cut inventory according to a Tukey *** summary,the total stand model generated estimates that were compatible with the pre-cut inventory while the diametric distribution model did not.

关键词： Clutter model Diameter class Eucalyptus Prognosis

Optimization of Expanded Polystyrene Lightweight Aggregate in Pre-Cast Concrete Blocks by a Completely Random Experimental Design (CRED) with Mixture and Process Variables

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Open Journal of Statistics 2016年第4期6卷 594-604页

作者： Raimundo Kennedy Vieira Raimundo Pereira de vasconcelos Douglas Marangoni Adalena Kennedy Vieira Nutec Federal University of Amazonas (UFAM) Manaus (AM) Brazil Center Foundation of Analyses Research and Technological—FUCAPI Manaus (AM) Brazil

The aim of this study was to determine the optimum design mix to produce pre-cast concrete blocks by a completely random experimental design (CRED) with mixture and process variables. The polymerized concrete was studied its composition: Cement, and water defined as the mixture compounds. To choose the best model, all the possible models were assessed through the ANOVA, which tested each possible model. The linear-linear model was preferred, since that do not present evidence of lack of fit, and it is capable of relating how to react the process variables, when are changed the variable mixture condition levels. The optimum experimental condition, obtained for the polymerized concrete, was: The size of the polystyrene beads was 4.8 mm sized polystyrene beads, 5.0% polystyrene that replaced the aggregate, 18.3% cement, 73.4% aggregate and 8.3% water. In this condition, the blocks made with polymerized concrete show a compressive strength above 15 Mpa, allowing its utilization in paving.

关键词： Experimental Design CRED Polymerized Concrete