990 resultados para Pablo Neruda.
Resumo:
A total of 4,840 phlebotomine sand flies from 54 localities in Putumayo department (=state), in the Colombian Amazon region, were collected in Shannon traps, CDC light traps, resting places and from human baits. At least 42 Lutzomyia species were registered for the first time to the department. Psychodopygus and Nyssomyia were the subgenera with the greatest number of taxa, the most common species being L. (N.) yuilli and L. (N.) pajoti. They were sympatric in a wide zone of Putumayo, indicating that they should be treated as full species (new status). Among the anthropophilic sand flies, L. gomezi and L. yuilli were found in intradomiciliar, peridomestic, urban or forest habitats. L. richardwardi, L. claustrei, L. nocticola and L. micropyga are reported for the first time in the Colombian Amazon basin. L. pajoti, L. sipani and L. yucumensis are new records for Colombia.
Resumo:
Aedes albifasciatus is a floodwater mosquito that breeds in temporary waters. This semi-domestic species, widely distributed in Argentina, is a competent vector of the western equine encephalitis. The present study was carried out in two rain pools of the city of Buenos Aires, from April 1998 through March 1999. Samples were taken twice a week during the cold season and daily during the warmer months, starting from October. Immature mosquitoes were collected with a dipper, being the number of dippers proportional to the flooded area. The estimated rainfall thresholds to initiate cohorts of Ae. albifasciatus were: 16-17 mm in the fall-winter period, 25 mm in the spring, and 30 mm in the summer. The development time of the different cohorts and the mean air temperature of their respective periods were estimated in all seasons, ranging from six days (at 24ºC) to 32 days (at 13ºC). The equation that best expresses the relationship between development time and mean air temperature is dt =166,27.e-0,1435.T (R²=0,92). Significantly shorter development times were recorded for larvae of the first three stages as compared to the fourth larval stage and pupae.
Resumo:
Cry11Bb is an insecticidal crystal protein produced by Bacillus thuringiensis subsp. medellin during its stationary phase; this ¶-endotoxin is active against dipteran insects and has great potential for mosquito borne disease control. Here, we report the first theoretical model of the tridimensional structure of a Cry11 toxin. The tridimensional structure of the Cry11Bb toxin was obtained by homology modelling on the structures of the Cry1Aa and Cry3Aa toxins. In this work we give a brief description of our model and hypothesize the residues of the Cry11Bb toxin that could be important in receptor recognition and pore formation. This model will serve as a starting point for the design of mutagenesis experiments aimed to the improvement of toxicity, and to provide a new tool for the elucidation of the mechanism of action of these mosquitocidal proteins.
Resumo:
L’evolució natural del càncer de pròstata és cap a una situació d’ hormono-resistència. Un possible factor associat a aquesta desdiferenciació és l’adquisició de trets neuroendocrins. La cromogranina A i l’enolasa són els marcadors en sèrum més estudiats Hem analitzat de forma prospectiva els marcadors neuroendocrins com a possibles factors pronòstics en pacients amb càncer de pròstata resistents a la castració. També hem analitzat altres factors pronòstics ja coneguts en cáncer de próstata. L’anàlisis realitzat suggereix que l’alteració en sèrum de cromogranina i enolasa podria ser factor pronòstic en pacients amb càncer de pròstata resistents a la castració
Resumo:
Comprovar en una sèrie de més de 300 pacients tractats amb intenció radical de càncer de bufeta si el seguiment que se´ls realitza de manera rutinària permet la detecció precoç de les recaigudes i té un impacte positiu en la seva supervivencia i l´interval lliure de malaltia.
Resumo:
Anaplastic lymphoma kinase (ALK) rearrangements represents a new driver oncogenic event in non-small cell lung cancer (NSCLC). ALK positive patients account for a 1-7% of NSCLC patients. The objective of this study is to know the prevalence and clinical characteristics of ALK positive patients in a cohort of NSCLC patients and to compare inmunohistochemistry with D5F3 monoclonal antibody with gold standard method fluorescence in situ hybridation
Resumo:
Unit4 va començar a implantar en els seus equips de desenvolupament a nivell estatal la metodologia SCRUM. Amb els temps, es va tenir la necessitat de informatitzar el procés d'SCRUM. És per això que l'any 2009 es va iniciar el desenvolupament d'un software per aquest objectiu. L'actual projecte, doncs, parteix de la necessitat d'acabar de desenvolupar algunes parts essencials per al bon funcionament del software ekon SCRUM.
Resumo:
El tumor germinal seminoma (TGS) suposa un 50% de tots els tumors testiculars, i tot i l'excel•lent pronòstic a llarg plaç, està experimentant un increment de la incidència en un grup de la població d’entre 15-35 anys. L'Hospital de la Santa Creu i Sant Pau (HSCSP) juntament amb Fundació Puigvert són centre de referència en el maneig del TGS. La intenció el treball és reportar de manera descriptiva i retrospectiva l’experiència acumulada en aquest centre al llarg dels últims 15 anys. L'aportació d'aquest estudi pretén unir esforços per tal de disminuir tractaments innecessaris en gran part dels estadis I i intentar aportar més dades en favor del tractament adaptat al risc. En aquest sentit, ha de ser un motiu més per intentar validar factors pronòstics ferms en futurs estudis i poder posicionar la teràpia adaptada al risc en una situació protocolitzada i consensuada a nivell internacional.
Resumo:
El proyecto tiene por finalidad crear una aplicación multifunción que permita a un gestor visualizar la información más relevante e importante respecto al conjunto de colaboradores que tiene a su cargo y que puede ser útil en la toma de decisiones a corto y largo plazo. Dicho proyecto se ha desarrollado en la delegación de UNIT4 Ibérica de Barberà del Vallès.
Resumo:
Adult specimens of Cochliomyia macellaria, Chrysomya megacephala, Ch. rufifacies, Lucilia sp. (Calliphoridae), Musca domestica (Muscidae), Oxelytrum discicolle (Silphidae) and Sarcophagidae were recovered from 12 human cadavers in Cali, Valle, Colombia. Information regarding these findings is presented.
Resumo:
L'anestèsia peribulbar és una tècnica anestèsica vàlida per a la cirurgia de cataractes. Consisteix en dues puncions que produeixen bloqueig motor i sensitiu del globus ocular. Per disminuir el dolor i l'ansietat de la punció es pot sedar els pacients. L'objectiu d'aquest treball és avaluar la seguretat de la sedació profunda amb propofol (un fàrmac hipnòtic), en termes de variabilitat hemodinàmica, depressió respiratòria i presència de moviments involuntaris que dificultin la punció.
Resumo:
The first finding of a Capillariid in the urinary tract of a free ranging maned wolf (Chrysocyon brachyurus) is described. The individual was an adult male attacked by dogs in the locality of Cayastacito (Santa Fe, Argentina, 31º05' S, 60º 34' W). Eggs found in urine measured 64.6-66.9µm (mean 65.4µm) x 26.9-31µm (mean 29µm). Further studies are needed to determine whether this finding corresponds to a new Capillariid species, related to C. brachyurus, or it is an already described species that has been introduced by domestic dogs.
Resumo:
Existeix un debat continu sobre la rellevància del Virus del papiloma humà (VPH) en l’etiopatogènia de la psoriasi. S’ha reportat un elevat percentatge de detecció de VPH en pacients psoriàsics, sobretot el VPH5 i 36, suggerint que podrien correspondre a l’antigen causal de la cascada inmunològica. El propòsit de l’estudi és utilitzar un mètode ampli per a la detecció d’ADN tant de beta com gamma-papilomavirus en 30 biòpsies de pell psoriàsica i 30 biòpsies de pell sana. Avaluarem si els VPH són detectats de forma més freqüent en pell psoriàsica en comparació amb pell sana, i quins són els VPH específics més sobreexpresats.
Resumo:
In this work we studied the toxicity in clams from the Gulf of Gabes, Tunisia (Southern Mediterranean). Samples from two stations (M2 and S6) were collected monthly from January 2009 to September 2010, and analyzed by the official control method of mousse bioassay (MBA) for lipophilic toxins. All samples were also analyzed with the LC-MS/MS method for the determination of lipophilic toxins, namely: okadaic acid group, pectenotoxins, yessotoxins and azaspiracids, spirolides and gymnodimines (GYMs). The results showed prevalence of GYMs since it was the only toxin group identified in these samples with a maximum of 2,136 μg GYM -A kg-1 (February 2009 at M2). Furthermore, GYMs showed persistence in the area, with only one blank sample below the limit of detection. Interestingly, this blank sample was found in June 2009 after an important toxic episode which supports the recent findings regarding the high detoxification capability of clams, much faster than that reported for oysters. In comparison, good agreement was found among MBA, the LD50 value of 80-100 μg kg-1 reported for GYM- A, and quantitative results provided by LC-MS/MS. On the contrary to that previously reported for Tunisian clams, we unambiguously identified and quantified by LC-MS/MS the isomers GYM- B/C in most samples. Phytoplankton identification and enumeration of Karenia selliformis usually showed higher densities at site M2 than S6 as expected bearing in mind toxin results, although additional results would be required to improve the correlation between K. selliformis densities and quantitative results of toxins. The prevalence and persistence of GYMs in this area at high levels strongly encourages the evaluation of the chronic toxic effects of GYMs. This is especially important taking into account that relatively large quantities of GYMs can be released into the market due to the replacement of the official control method from mouse bioassay to the LC-MS/MS for lipophilic toxins (Regulation (EU) No 15/2011), and the lack of Regulation for this group of toxins.
Resumo:
Here we present a one-tube nested PCR test, which allows the detection of minimal quantities of Chlamydia trachomatis in human fluids. This assay includes the use of an internal control to avoid false negative results due to the presence of inhibitors. The results obtained show that this assay is robust enough to be used for clinical diagnosis.