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The challenging management of malignant ureteral obstruction:Analysis of a series of 188 cases

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Current Urology 2024年第1期18卷 34-42页

作者： Alberto Artiles Medina Inés Laso García Fernando González Tello Sara Álvarez Rodríguez Manuel Hevia palacios Marina Mata Alcaraz César Mínguez Oj.da Fernando Arias Funez Victoria Gómez Dos Santos Francisco j.vier Burgos Revilla Department of Urology Hospital Universitario Ramón y CajalMadridSpain Department of Radiology Hospital Universitario Ramón y CajalMadridSpain

Background:Malignant ureteral obstruction(MUO)is a common condition that complicates the course of advanced *** aims of this study are to analyze the causes,management,and survival of patients with obstructive nephropathy due to malignant ureteric obstruction and to determine prognostic ***,we studied the complications and outcomes in patients who underwent urinary *** and methods:A retrospective study was conducted on patients with computed tomography-confirmed MUO between j.nuary 2016 and November ***,clinical,radiological,laboratory,and management data were *** curves were estimated using the Kaplan-Meier method,and univariate and multivariate Cox proportional hazards models were used to test the association between parameters and ***:A total of 188 patients were *** mean age was 69.01 years(SD,14.95 years),and the maj.rity(54.8%)were *** most common mechanism leading to MUO was compression by a pelvic mass(36.9%),and the 3 most frequent tumors causing MUO were prostate(17.6%),bladder(16.5%),and rectal cancer(11.7%).Forty-seven patients(25%)underwent urinary diversion:23(48.9%)underwent double-j.stenting and 21(44.7%)underwent percutaneous *** most common reason for urinary diversion was acute kidney inj.ry(53.3%).Recovery of renal function was observed in 55.8%of the patients after urinary *** most frequently identified complications after urinary diversion were urinary tract infection(24.4%),hematuria(17.0%),and urinary sepsis(14.9%).The median survival after hydronephrosis diagnosis was 6.43 months(interquartile range,1.91-14.81 months).In patients who underwent urinary decompression,the median survival after urinary diversion was 8.67 months(interquartile range,2.99-17.28 months).In the multivariate analysis,a lower grade of hydronephrosis and cancer cachexia negatively impacted ***:Cancer patients with MUO have a poor pro

关键词： Hydronephrosis Ureteral obstruction Neoplasms Urinary diversion Survival Prognosis

Metallic Interaction in Polythiophene-Ti Plasma Composites

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Open j.urnal of Polymer Chemistry 2013年第2期3卷 34-38页

作者： j. Cuauhtémoc palacios Ma. Guadalupe Olayo Guillermo j. Cruz Departamento de Física Instituto Nacional de Investigaciones Nucleares Ocoyoacac México Facultad de Ingeniería Universidad Autónoma del Estado de México Toluca México

This work presents a study about the structure and morphology of thin plasma composite films of polythiophene (PTh) with metallic particles of Ti (PTh-Ti). The obj.ctive was to study the water affinity and electric conductivity in PTh with the addition of metallic phases. The hydrophilicity was studied with the contact angles formed between water and surfaces, and the electric conductivity was calculated with the resistance measured in a two-probe device. The structure and morphology of the composites were studied with X-ray diffraction and scanning electron microscopy. The results indicated that PTh-Ti formed thin films of hybrid composites with oxidized Ti and Fe additional particles released from the electrodes used in the syntheses. The metallic fraction resulted in 2 diffraction angles at 31.6° and 66.1° product of the complex interaction among Ti, resembling orthorhombic TiO2 structures, and PTh. The metallic particles and iodine, added as a dopant to the composites to increase conductivity, reduced the hydrophilicity with water in a competition between roughness and chemical composition. In these conditions, the contact angles resulted between 46° and 75°. The electric conductivity was about 10-6 S/m increasing one order of magnitude with the metallic fraction. However, the high resistance of the polymeric fraction apparently dominates the transference of charges.

关键词： Polythiophene Titanium Composites Plasma

The role of shaded cocoa plantations in the maintenance of epiphytic orchids and their interactions with phorophytes

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j.urnal of Plant Ecology 2020年第1期13卷 27-35页

作者： j.nas Morales-Linares j.séGGarcía-Franco Alej.ndro Flores-palacios Thorsten Krömer Tarin Toledo-Aceves Red de Ecología Funcional Instituto de EcologíaA.C.Carretera Antigua a Coatepec 351El HayaXalapa 91070VeracruzMexico Centro de Investigación en Biodiversidad y Conservación Universidad Autónoma del Estado de MorelosAv.Universidad 1001Col.ChamilpaCuernavaca 62209MorelosMexico Present address:Centro de Investigación en Biodiversidad y Conservación Universidad Autónoma del Estado de MorelosAv.Universidad 1001Col.ChamilpaCuernavaca 62209MorelosMéxico Centro de Investigaciones Tropicales Universidad VeracruzanaJoséMaría Morelos 44-46Zona CentroXalapa 91000VeracruzMexico

生境丧失和破碎化是热带森林生物多样性的主要威胁。遮荫的可可种植园(SCP)等农业生态系统为热带森林生物群提供了庇护。然而,在这些转化后的生境中是否还维持种间生态的相互作用,目前尚鲜为人知。我们评定附生兰花群落的多样性、繁殖... 详细信息

生境丧失和破碎化是热带森林生物多样性的主要威胁。遮荫的可可种植园(SCP)等农业生态系统为热带森林生物群提供了庇护。然而,在这些转化后的生境中是否还维持种间生态的相互作用,目前尚鲜为人知。我们评定附生兰花群落的多样性、繁殖状态和光合代谢(CAM或C3),以及与热带雨林(TRF)相比,它们与SCP中寄主树种(附生植物)之间的相互作用。在墨西哥东南部,对TRF和SCP中各三个采样地点进行研究。每个采样地点建立了4个400平方米的样地,调查记录所有兰花及其附生植物。我们依据花/果实(或残体)是否存在来确定每个兰花个体的繁殖(成体)或非繁殖(幼体)状态,并根据文献确定每种兰花的光合作用途径。我们采用真正的分集和生态网络的方法分别分析兰花的多样性以及兰科与附生植物间的相互作用。我们一共记录了47个兰花种的607个个体。在TRF(19个有效物种)中的兰花多样性高于SCP(11个有效物种),两个生境之间仅共享7个物种。SCP(53%)中的CAM兰花物种比TRF(14%)更常见。在群落水平上,SCP维持了非生殖兰花和生殖兰花的比例以及TRF兰科附生植物网络的嵌套结构和特异化水平。然而,SCP中仅保留一部分的TRF附生兰花,突显出保护TRF的重要性。尽管存在这种差异,诸如SCP类型的遮荫农业生态系统仍然可以维持天然林的一些多样性和功能,因为SCP附生兰花群落主要由CAM物种组成,其附生植物构成了一个嵌套的相互作用网络,对干扰形成了更强的抗性。

关键词：农业生态系统生态网络墨西哥光合作用途径热带雨林

Use of wastes from the tea and coffee industries for the production of cellulases using fungi isolated from the Western Ghats of India

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Systems Microbiology and Biomanufacturing 2021年第1期1卷 33-41页

作者： S.A.Saldana-Mendoza j.A.Ascacio-Valdes A.S.palacios-Ponce j.C.Contreras-Esquivel R.Rodriguez-Herrera H.A.Ruiz j.L.Martinez-Hernandez S.Sugathan C.N.Aguilar Bioprocesses and Bioproducts Research Group Food Research DepartmentAutonomous University of Coahuila25280 SaltilloMexico Faculty of Engineering in Mechanics and Production Sciences Polytechnic School of LitoralESPOLCampus Gustavo Galindo Km.30.5 Vía PerimetralP.O.Box 09-01-5863GuayaquilEcuador Microbiology Division Jawaharial Nehru Botanical Garden and Research InstitutePalodeThiruvananthapuramKerala 695562India

In this study,coffee pulp(Coffea arabica)and green tea(Camellia sinensis)residues were characterized for use as a substrate of solid-state fermentation for cellulases *** invasion rate was evaluated,as well as cellulases production by strains of Aspergillus niger and Trichoderma asperellum from the western Ghats of India,on coffee pulp,green tea,and a mixture of both substrates(50:50).***(AFP)strain was found to have the highest growth rate(0.409±0.021 mm/h)using a mixture of both *** production of cellulases by *** was unsatisfactory due to the presence of polyphenols in the supports to which *** cellulases are more *** production of cellulases by *** was linked to the pH of the supports,favouring the use of T and *** was found that the extracts produced by ***(28A strain using a mixture substrate,28A,and 20A strains using only green tea as a substrate)presented the highest cellulase activities when evaluated using a plate technique producing degradation halos of 2.3±0.1 cm of *** 28A strain did not require mineral enrichment media for cellulase production using green tea residues as support of solid-state fermentation.

关键词： Cellulases Fungal strains Solid-state fermentation Agroindustrial wastes Coffee pulp Green tea

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全球养老金政策与实践:历史、现状与未来

上海立信会计金融学院学报 2017年第6期29卷 6-13页

作者： Robert j.palacios 世界银行

本文主要分析评介全球养老金政策与实践发展的四大历史阶段,说明各阶段发展的主要政策与特点、实践发展与进步、存在问题以及机遇与挑战。本文还就当前高科技发展对养老金体系的影响做出分析判断。文章提出,高科技发展使正规就业模式难... 详细信息

本文主要分析评介全球养老金政策与实践发展的四大历史阶段,说明各阶段发展的主要政策与特点、实践发展与进步、存在问题以及机遇与挑战。本文还就当前高科技发展对养老金体系的影响做出分析判断。文章提出,高科技发展使正规就业模式难以扩展,当前数字化交易十分普及,而大数据使消费信息有据可查,技术上具备可行性,这就使消费税和增值税模式有可能替代传统的社保工薪税模式,有望成为未来收取养老金缴费的新模式。

关键词：养老金政策历史机遇挑战

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萃取和分光光度法测定矿石中的铀

世界核地质科学 1984年第4期 79-82页

作者： j. Aznarez F. palacios j. C. Vidal 刘建英

为了测定矿石中痕量铀,提出了一个萃取分光光度测定方法。此法是用三辛基氧膦甲苯溶液萃取铀,并在有机相中不经反萃取藉助NN-二甲基甲酰胺用乙二醛双（2-羟基缩苯胺）(GBH)或1-（2-吡啶偶氮）-2-萘酚（PAN）显色。用GBH作显色剂时最大... 详细信息

为了测定矿石中痕量铀,提出了一个萃取分光光度测定方法。此法是用三辛基氧膦甲苯溶液萃取铀,并在有机相中不经反萃取藉助NN-二甲基甲酰胺用乙二醛双（2-羟基缩苯胺）(GBH)或1-（2-吡啶偶氮）-2-萘酚（PAN）显色。用GBH作显色剂时最大吸光度出现在波长600nm处,克分子吸光系数为1.48（±0.01）×10～4 1mol~-1cm-1,用PAN作显色剂时,最大吸光度出现在波长555nm处,克分子吸光系数为2.61（±0.02）×10～41mol-1cm-1。用GBH作显色剂,波长选在600 nm,铀（Ⅵ）含量在0.6—10.5μgml-1（对应的样品中铀量为20—350μg）范围内符合比尔定律。用PAN作显色剂,波长选在555nm,在铀（Ⅵ）含量0.3—6.0μgml-1（对应的样品中铀量为10—200μg）范围内符合比尔定律。

关键词：试剂空白波长 nm 甲苯溶液 TBP 分光光度吸光度二甲基甲酸胺显色剂染色助剂 GBH 比尔定律硝酸铀硝酸盐矿石

一日一次的人GLP-1类似物利拉鲁肽治疗可降低2型糖尿病患者的收缩压,且受体重减轻的影响很小

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一日一次的人GLP-1类似物利拉鲁肽治疗可降低2型糖尿病患者的收缩...

The Effect of Maize Grain Size on the Physicochemical Properties of Isolated Starch, Crude Maize Flour and Nixtamalized Maize Flours

中华医学会第十次全国内分泌学学术会议

作者： R.Henry V Fonseca R.Tabaneray palacios j.Brett j.Plutzky University of California at San Diego CAUSA 100020 Tulane University LAUSA 100020 Novo Nordisk A/S BagsvrdDenmark 100020

背景:2型糖尿病患者的高血压患病率高于普通人群,且高血压是2型糖尿病患者发生心肌梗死和卒中的主要危险因素。适度减轻体重可长期降低血压,因此可降低高血压的风险。3期临床试验中,除使糖化血红蛋白(HbA)降低1.0-1.5%之外,利拉鲁肽还...

背景:2型糖尿病患者的高血压患病率高于普通人群,且高血压是2型糖尿病患者发生心肌梗死和卒中的主要危险因素。适度减轻体重可长期降低血压,因此可降低高血压的风险。3期临床试验中,除使糖化血红蛋白(HbA)降低1.0-1.5%之外,利拉鲁肽还可使收缩压(SBP)降低2～6mmHg,并使体重(BW)持续减轻2～3 kg。但关于利拉鲁肽降低SBP和降低BW之间的确切关系尚未明确。

关键词：

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Agricultural Sciences 2016年第2期7卷 114-125页

作者： Lineth j. Vega-Roj.s Margarita Contreras-Padilla Natalia Rincon-Londoño Alicia del Real López Rosa M. Lima-Garcia Natalia palacios-Roj.s Mario E. Rodriguez-Garcia Maestría en Ciencias Químico-Biológicas Facultad de Química Universidad Autónoma de Querétaro Querétaro México División de Investigación y Posgrado Facultad de Ingeniería Universidad Autónoma de Querétaro Cerro de las Campanas s/n Las Campanas Santiago de Querétaro Querétaro México Departamento de Nanotecnología Centro de Física Aplica y Tecnología Avanzada Universidad Nacional Autónoma de México Campus Juriquilla Querétaro México Posgrado en Ciencia e Ingeniería de Materiales Centro de Física Aplica y Tecnología Avanzada Universidad Nacional Autónoma de México Campus Juriquilla Querétaro México International Maize and Wheat Improvement Center (CIMMYT) Km 45 Carretera México-Veracruz Texcoco México Licenciatura en Ingeniería Física Facultad de Ingeniería Universidad Autónoma de Querétaro Querétaro México

Usually, the maize cob is formed by grains of medium size. However, the extremes have larger or smaller size grains. The obj.ctive of this study was to investigate the influence of grain size from the same hybrid on the physicochemical properties of isolated starch, crude maize flours and nixtamalized maize flours. Two hybrids, one from CIMMyT-Mexico called IMIC-254 and one commercial sample from Monsanto (Puma) were studied. The isolated starch granules from small, medium, and large grains exhibit the same size and distribution. The grain size has influence in the determination of cooking and steeping times;small grains reach these parameters faster than medium and large ones. The hardness of the grain size for both hybrids does not showed statistical differences between them. The starch from small, medium and large grains is mainly composed of amylopectin;this result is confirmed by X-ray diffraction and Megazine analysis. The apparent viscosity of the isolated starches of small grains showed statistically significant higher peak values. According to these results, it is possible to use small, medium, and large grains to obtain products with the same physicochemical properties, by adj.sting the cooking and steeping times and Ca2+ content.

关键词： Maize Grain Size Nixtamalization Starch Rheological Properties

Diagnosis of HIV Delay: Lost Opportunities

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World j.urnal of AIDS 2013年第3期3卷 197-200页

作者： P. j.ménez-Aguilar A. Romero palacios G. García-Dominguez j. Borrallo-Torrej.n E. Vergara-Moragues E. Cruz-Rosales A. Vergara de Campos Infectious Diseases Service Puerto Real University Hospital Cadiz Spain

The diagnosis delay in new cases of HIV infection is a frequent fact. Our obj.ctive was to detect and analyse the lost opportunities and describe the characteristics of these patients. Method: The search was done by a revision of personal histories of new diagnosis of HIV infection from 1st j.nuary to 31st December 2011 in the database of VACH. We selected those that had consulted a doctor in the previous year in the Emergency area, Primary Care and Specialised Consultations in the database of the histories of the Public Health Service. We called low attendance if they came 1 - 3 times and high if over 3. We grouped patients into those that fulfilled criteria of diagnosis delay by count of CD4s. We called no diagnosis delay to those that had count of CD4 over 350, diagnosis delay under 350 and advanced disease under 200. Results: There were 107 new cases. The global percentage of DD was 61.7% of cases. From these, 45.38% fulfilled criteria of AD. It was possible to find information about the existence of previous sanitary attendance in 59 patients. From these 58% were diagnosed with delay, fulfilling criteria of AD in 27%. The predominant means of infection was sexual. 35 patients attended a healthcare level, 19 two and 5 three. 47.5% consulted over 3 times. They requested a total of 274 consultations. Discussion: The diagnosis delay is a reality. It took our attention that from 59 patients having requested previous medical assistance 58% were diagnosed with delay and 27% fulfilled criteria of AD. We found that almost half of them had been attended in 4 and up to 14 times, in some occasions with suggestive symptoms of HIV infection. Facing this discovery we think that some interventions should be undertaken to get an early diagnosis and the control of the outbreak.

关键词： HIV Diagnosis Delay