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302篇 您的检索式:作者名="Maria P C"
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1Adsorption of Mn^(2+) from aqueous solution using Fe and Mn oxide-coated sand显示文摘The adsorption of Mn2+ onto immobilized Mn-oxide and Fe-oxide adsorbent such as manganese oxide-coated sand 1 (MOCS1), manganese oxide-coated sand2 (MOCS2), iron oxide-coated sand2 (IOCS2), and manganese and iron oxide-coated sand (MIOCS)was investigated. The effects of pH (5.5 to 8.0) and temperature (25 to45°C) on the equilibrium capacitywere examined. Equilibrium studies showed that there is a good fitwith both Freundlich and Langmuir isotherm,which indicates surface heterogeneity and monolayer adsorption of the adsorbents. Kineticdata showed high correlationwith the pseudo second-order model,which signifies a chemisorption-controlled mechanism. The activation energies, activation parameters (ΔG*,ΔH*,ΔS*), and thermodynamic parameters (ΔG0 , ΔH0 , ΔS0 ) confirmed that adsorptionwith MIOCSwas endothermic and more spontaneous at higher temperaturewhile an opposite trendwas observed for the other adsorbents. Thermodynamic studies showed that adsorption involved formation of activated complex,where MOCS1 and MIOCS follow a physical-chemical mechanism,while MOCS2 and IOCS2 follows purely chemical mechanism.Chi-Chuan Kan Mannie C Aganon Cybelle Morales Futalan Maria Lourdes P Dalida 2013Journal of Environmental Sciences2013,25,7:11
2Is autoimmune hepatitis a frequent finding among HCV patients with intense interface hepatitis?显示文摘AIM:To evaluate the overlap of autoimmune hepatitis in hepatitis C virus(HCV)-infected patients with intense interface hepatitis.METHODS:Among 1759 patients with hepatitis C submitted to liver biopsy,92(5.2%) presented intense interface hepatitis.These patients were evaluated regarding the presence of antinuclear antibody(ANA),anti-smooth muscle antibody(SMA) and anti-liver/kidney microsomal antibody(LKM-1),levels of γ-globulin and histological findings related to autoimmune hepatitis(plasma cell infiltrate and presence of rosettes).RESULTS:Among patients with hepatitis C and intense interface hepatitis there was a low prevalence of autoantibodies(ANA=12%,SMA=5%,LKM-1=0%) and the median γ-globulin level was within the normal range.Typical histological findings of autoimmune disease were observed in only two cases(2%).After applying the score for diagnosis of autoimmune hepatitis,only one patient was classified with a definitive diagnosis of autoimmune hepatitis.Since overlap with autoimmune hepatitis was not the explanation for the intense necroinflammatory activity in patients with chronic hepatitis C we sought to identify the variables associated with this finding.The presence of intense interface hepatitis was associated with more advanced age,both at the time of infection and at the time of the biopsy,and higher prevalence of blood transfusion and alcohol abuse.CONCLUSION:Although possible,overlap with autoimmune hepatitis is a very rare association in HCV-infected patients with intense interface hepatitis,an unusual presentation which seems to be related to other host variables.Rosilene G Badiani Vitória Becker Renata M Perez Carla AL Matos Lara B Lemos Valéria P Lanzoni Luis Eduardo C Andrade Alessandra Dellavance Antonio Eduardo B Silva Maria Lucia G Ferraz 2010World Journal of Gastroenterology2010,16,29:7
3Presacral venous bleeding during mobilization in rectal cancer显示文摘AIM To analyze the anatomy of sacral venous plexus flow, the causes of injuries and the methods for controlling presacral hemorrhage during surgery for rectal cancer.METHODS A review of the databases MEDLINE? and Embase? was conducted, and relevant scientific articles published between January 1960 and June 2016 were examined. The anatomy of the sacrum and its venous plexus, as well as the factors that influence bleeding, the causes of this complication, and its surgical management were defined.RESULTS This is a review of 58 published articles on presacral venous plexus injury during the mobilization of the rectum and on techniques used to treat presacral venous bleeding. Due to the lack of cases published in the literature, there is no consensus on which is the best technique to use if there is presacral bleeding during mobilization in surgery for rectal cancer. This review may provide a tool to help surgeons make decisions regarding how to resolve this serious complication.CONCLUSION A series of alternative treatments are described; however, a conventional systematic review in which optimal treatment is identified could not be performed because few cases were analyzed in most publications.Jose Enrique Casal Núnez Vincenzo Vigorita Alejandro Ruano Poblador Ana María Gay Fernández Maria ángeles Toscano Novella Nieves Cáceres Alvarado Lucinda Pérez Dominguez 2017World Journal of Gastroenterology2017,23,9:4
4Altered blood-brain barrier permeability in rats with prehepatic portal hypertension turns to normal when portal pressure is lowered显示文摘AIM: To study the blood-brain barrier integrity in prehe-patic portal hypertensive rats induced by partial portal vein ligation, at 14 and 40 d after ligation when portal pressure is spontaneously normalized. METHODS: Adult male Wistar rats were divided into four groups: GroupⅠ: Sham14d, sham operated; GroupⅡ: PH14d, portal vein stenosis; (both groups were used 14 days after surgery); GroupⅢ: Sham40d, Sham operated and GroupⅣ: PH40d Portal vein stenosis (GroupsⅡandⅣused 40 d after surgery). Plasma ammonia, plasma and cerebrospinal fluid protein and liver enzymes concentrations were determined. Trypan and Evans blue dyes, systemically injected, were investigated in hippocampus to study blood-brain barrier integrity. Portal pressure was periodically recorded. RESULTS: Forty days after stricture, portal pressure was normalized, plasma ammonia was moderately high, and both dyes were absent in central nervous system parenchyma. All other parameters were reestablished. When portal pressure was normalized and ammonia level was lowered, but not normal, the altered integrity of blood-brain barrier becomes reestablished. CONCLUSION: The impairment of blood-brain barrier and subsequent normalization could be a mechanism involved in hepatic encephalopathy reversibility, Hemo-dynamic changes and ammonia could trigger blood-brain barrier alterations and its reestablishment.Francisco Eizayaga Camila Scorticati Juan P Prestifilippo Salvador Romay Maria A Fernandez José L Castro Abraham Lemberg Juan C Perazzo 2006World Journal of Gastroenterology2006,12,9:3
5Whole brain radiation therapy with or without stereotactic radiosurgery boost for patients with one to three brain metastases: phase III results of the RTOG 9508 randomised trial显示文摘David W Andrews Charles B Scott Paul W Sperduto Adam E Flanders Laurie E Gaspar Michael C Schell Maria Werner-Wasik William Demas Janice Ryu Jean-Paul Bahary Luis Souhami Marvin Rotman Minesh P Mehta Walter J Curran 2004The Lancet . 2004 (9422)2004,,9422:2
6IL-18 Enhances IL-4 production by ligand-activated NKT lymphocytes:a Pro-Th2 effect of IL-18 exerted through NKT cells显示文摘 AGATHE H MARIA P 2001J Immunol2001,166,:1
7Phthalates determination in pharmaceutical formulae used in parenteral nutrition by LC-ES-MS: Importance in public health 显示文摘Cristina P F Maria C B A Antia S D 2010Analytical and Bioanalytieal Chemistry2010,397,2:1
8Morphological and molecular characterization of mycorrhizal fungi isolated from neotropical orchids in Brazil 显示文摘OLINTO L P MARIA C M K 2005Canadian Journal of Botany2005,83,1:1
9Facile labelling of an an- ti-epidermal growth factor receptor nanobody with 68Ga via a novel bifunctional desferal chelate for immuno-PET显示文摘Maria J W Lars R P Rob C 2011Eur J Nucl Med Mol Ima2011,,38:1
10Effect of biobed composi- tion,moisture,and temperature on the degradation of pes- ticides显示文摘MARIA D P C LENNART T 2007Journal of Agricultural & Food Chemistry2007,55,14:1
11Long-term cyclability of nanostructured LiFePO4显示文摘PIER P P MARIA C SILVERA S 2003Electrochimica Acta2003,48,:1
12Determination of Tryptophan by High-performance Liquid Chromatography of Alkaline Hydrolysates With Spectrophotometric Detection 显示文摘Maria M Y Justo P Julio G C etal 2004Food Chemistry(S0308-8146)2004,85,2:1
13Characterization and remediation of soils contaminated with uranium显示文摘MARIA G LUCIAN V P IGOR C 2009Journal of Hazardous Materi- als2009,163,:1
14Mandarin peel wastespretreatment with steam explosion for bioethanol production显示文摘MARIA B A LIDIA G V FAYINY P G C 2010Bioresource Technology2010,101,10:1
15Characterization of Serum Immunoglobulin M of the Antarctic Teleost (Tre- matomus bernacchii) 显示文摘BIAGIO P MARIA R C UMBERTO O 2003Comparative Biochemistry and Physiology Part B2003,135,2:1
16Synthesis and biological evaluation of an anticancer vaccine containing the C-glycoside analogue of the Tn epitope 显示文摘Francesco P Laura C Maria R 2001Bioconjug Chem2001,12,3:1
17Efficiency and its determinants in Portuguese hotels in the Algarve显示文摘Ricardo O Maria Isabel P Rui C M 2013Tourism Management2013,36,2:1
18A nonsensemutation in the tyrosinase gene causes albinism in water buffalo显示文摘MARIA C F D GILDENOR M XJOSt P 0 F 2012Bmc Genetics2012,13,2:1
19An expeditious method for the determination of organochlorine pesticides residues in estuarine sediments using microwave assisted pre-extraction and automated headspace solid-phase microextraction coupled to gas chromatography-mass spectrometry 显示文摘Pedro N C Pedro N R Filipe A Rafael E Maria C P Teresa M V 2008Talanta2008,76,5:1
20Transmission system parameters optimization-sensitivity analysis of secondary arc current and recovery voltage显示文摘Maria C T Carlos M P 2004IEEE Trans on Power Apparatus and Systems2004,19,3:1
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