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Search Results: 1 - 10 of 175679 matches for " Carlo E; Loyola-Rodriguez "
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Dental caries' experience, prevalence and severity in Mexican adolescents and young adults
García-Cortés,José O; Medina-Solís,Carlo E; Loyola-Rodriguez,Juan P; Mejía-Cruz,Jorge A; Medina-Cerda,Eduardo; Pati?o-Marín,Nuria; Pontigo-Loyola,América P;
Revista de Salud Pública , 2009, DOI: 10.1590/S0124-00642009000100009
Abstract: objective determining dental caries' experience, prevalence and severity in students applying for degree courses at san luis potosi university (uaslp). material and methods a cross-sectional study was carried out involving adolescents and young adults (16 to 25 years old) applying for undergraduate courses at uaslp (~10 %, n=1 027). two standardized examiners undertook dental examinations; dmft index, prevalence (dmft>0), severity (dmft>3 and dmft>6) and significant caries index (sic) were calculated. stata 9.0 non-parametric tests were used for statistical analysis. results mean age was 18.20±1.65; 48.0% were female. the dmft index was 4.04±3.90 and caries prevalence was 74.4%. regarding caries' severity, 48.8% had mdft>3 and 24% dmft>6. the sic index was 8.64. females had higher caries experience than males (4.32±4.01 cf 3.78±3.78; p<0.05), but similar prevalence and severity (p>0.05). age was associated with both experience (p<0.001) and prevalence (p<0.01) and to differing degrees of caries' severity (p<0,001). the ?filled teeth? component had the highest dmft index percentage (63.6%) and ?missing teeth? the lowest (11.4%). conclusions high dental caries' experience, prevalence and severity were observed in this sample of adolescents and young adults. restorative experience was high (59.5%) compared to studies carried out in other parts of mexico and latin-america.
Rheumatoid arthritis and the role of oral bacteria
Juan Pablo Loyola-Rodriguez,Rita Elizabeth Martinez-Martinez,Carlos Abud-Mendoza,Nuria Pati?o-Marin
Journal of Oral Microbiology , 2010, DOI: 10.3402/jom.v2i0.5784
Abstract: Rheumatoid arthritis (RA) and periodontal disease (PD) have shown similar physiopathologic mechanisms such as chronic inflammation with adjacent bone resorption in an immunogenetically susceptible host; however, PD has a well-recognized bacterial etiology while the cause of RA is unclear. Some reports have indicated that an infectious agent in a susceptible host could be one possible trigger factor for RA, and it has been suggested that oral microorganisms, specialty periodontal bacteria could be the infectious agent (mainly Porphyromonas gingivalis). It has been reported that PD is more frequent and more severe in patients with RA, suggesting a positive association between both diseases. There have been reports regarding the detection of antibodies against periodontal bacteria while other studies have identified periodontal bacterial DNA in serum and synovial fluid of RA patients and have explored the possible pathways of transport of periodontal bacterial DNA. In conclusion, there is no question that RA and PD have pathologic features in common and there is strong evidence of an association between both diseases, but further studies, including experimental models, are needed to demonstrate the arthritogenicity of oral microorganisms.
Redescri??o de Cymodoce madrasensis (Srinivasan, 1959) combina??o nova (Sphaeromatidae: Isopoda: Crustacea) de Madras, índia
Silva, Jayme de Loyola e;
Brazilian Archives of Biology and Technology , 1998, DOI: 10.1590/S1516-89131998000300015
Abstract: the author studying a male of exosphaeroma madrasensis srinivasan, 1959, catalog 102151 division of crustacea - usnm, describes and transfers the species to the genus cymodoce leach, 1814 establishing a new combination cymodoce madrasensis (srinivasan, 1959).
Descri??o de hexapanopeus heblingi sp.n. (Crustacea, Decapoda, Brachyura, Xanthidae) do litoral Brasileiro
Rodrigues, Misael Domingues;Loyola e Silva, Jayme de;
Revista Brasileira de Zoologia , 1998, DOI: 10.1590/S0101-81751998000100022
Abstract: hexapanopeus heblingi sp.n. is described in base of an adult male reared in the laboratory. this species of crab is typic of anchieta island, ubatuba (23o32's and 45o05'w), north coast of s?o paulo state, brazil.
A forma??o dos oostegitos em Porcellio dilatatus Brandt (Crustácea, Isopoda, Oniscidea) em laboratório
Loyola e Silva, Jayme de;Coraiola, Maria Aparecida Sídor;
Revista Brasileira de Zoologia , 1999, DOI: 10.1590/S0101-81751999000500021
Abstract: woodlice were reared in laboratory in the environmental climate of the city of curitiba, brazil, with the purpose of getting to know the process of formation of oostegites. two kinds of cultivation were adopted: natural populations to be controlled were kept in small glass aquariums resembling the natural environment; and, new-bom woodlice were raised each one isolated in small plastic receptacles, with a special diet until two years old or over. when adults, after recognizing their sexes, males and females were put together to copulate during one or more days, and some of the females were fertilized. after 30 days, the fertilized females realized ecdise and acquired oostegites. the complete process (copulation, fecundation, incubation and birth) occurred between 25 and 50 days. the females fertilized only once produced one or more broods, each brood varying from 10 to 30 youngs. the spermatic mass reserved in the seminal receptacle depleted after having realized one, two or, rarely, three broods; the females without sperm in the receptacle realized ecdise, lost oostegites and got again virginal aspect. females in such condition, kept alone, isolated from males have never acquire oostegites again. otherwise, in contact with males, once fertilized they realized ecdise and acquired new oostegites. the authors have concluded that the oostegites only are formed because of the received sperm and its continuity depends on the sperm accumulated in the seminal receptacle, for more than one brood.
Calappa sulcata Rathbun (Crustacea, Decapoda, Calappidae) de Guaratuba, Paraná, Brasil
Nakamura, Isabel Takeko;Loyola e Silva, Jayme de;
Revista Brasileira de Zoologia , 1992, DOI: 10.1590/S0101-81751992000100007
Abstract: a concise description and a latitudinal distribution to south brazil of calappa sulcata are presented.
Lista das espécies de Dendrobranchiata e Caridea (Crustacea, Decapoda) do Museu de História Natural Cap?o da Imbuia, Curitiba e do Centro de Estudos do Mar, Paranaguá, Paraná, Brasil
Corrêa, Elaine de Azambuja;Loyola e Silva, Jayme de;
Revista Brasileira de Zoologia , 1995, DOI: 10.1590/S0101-81751995000100020
Abstract: due to its biogeographical characteristics. the coast of the state of paraná reveals to be a very important area for zoological researches. at the present time, however, there are only a few studies related to its carcinological fauna. the museu de história natural cap?o da imbuia which belongs to the curitiba city hall and the centro de estudos do mar, of the universidade federal do paraná have crustacea collections, which are the unique references to the state. this research paper was based on the files of these institutions and also on bibliographical survey. the present research contains a detailed report of the collections and a catalogue of dendrobranchiata and caridea (crustacea) species, including typical locality and geographical distribution of them.
Influence of turbidity and clouds on satellite total ozone data over Madrid (Spain)
J. L. Camacho, M. Antón, D. Loyola,E. Hernandez
Annales Geophysicae (ANGEO) , 2010,
Abstract: This article focuses on the comparison of the total ozone column data from three satellite instruments; Total Ozone Mapping Spectrometers (TOMS) on board the Earth Probe (EP), Ozone Monitoring Instrument (OMI) on board AURA and Global Ozone Monitoring Experiment (GOME) on board ERS/2, with ground-based measurement recorded by a well calibrated Brewer spectrophotometer located in Madrid during the period 1996–2008. A cluster classification based on solar radiation (global, direct and diffuse), cloudiness and aerosol index allow selecting hazy, cloudy, very cloudy and clear days. Thus, the differences between Brewer and satellite total ozone data for each cluster have been analyzed. The accuracy of EP-TOMS total ozone data is affected by moderate cloudiness, showing a mean absolute bias error (MABE) of 2.0%. In addition, the turbidity also has a significant influence on EP-TOMS total ozone data with a MABE ~1.6%. Those data are in contrast with clear days with MABE ~1.2%. The total ozone data derived from the OMI instrument show clear bias at clear and hazy days with small uncertainties (~0.8%). Finally, the total ozone observations obtained with the GOME instrument show a very smooth dependence with respect to clouds and turbidity, showing a robust retrieval algorithm over these conditions.
Measuring emotion in the voice during psychotherapy interventions: Apilot study
Biological Research , 2008,
Abstract: The voice as a representation of the psychic world of patients in psychotherapeutic interventions has not been studied thoroughly. To explore speech prosody in relation to the emotional content of words, voices recorded during a semi-structured interview were analyzed. The subjects had been classified according to their childhood emotional experiences with caregivers and their different attachment representations. In this pilot study, voice quality as spectral parameters extracted from vowels of the key word "mother" (Germán: "Mutter") were analyzed. The amplitude of the second harmonic was large relative to the amplitude of the third harmonic for the vowel "u" in the secure group as compared to the preoccupied group. Such differences might be related to the subjects' emotional involvement during an interview eliciting reconstructed childhood memories.
Geophysical validation and long-term consistency between GOME-2/MetOp-A total ozone column and measurements from the sensors GOME/ERS-2, SCIAMACHY/ENVISAT and OMI/Aura
M. E. Koukouli,D. S. Balis,D. Loyola,P. Valks
Atmospheric Measurement Techniques Discussions , 2012, DOI: 10.5194/amtd-5-3019-2012
Abstract: The main aim of the paper is to assess the consistency of five years of Global Ozone Monitoring Experiment-2/Metop-A (GOME-2) total ozone columns and the long-term total ozone satellite monitoring database already in existence through an extensive inter-comparison and validation exercise using as reference Brewer and Dobson ground-based measurements. The behaviour of the GOME-2 measurements is being weighed against that of GOME (1995–2011), Ozone Monitoring Experiment (OMI) (since 2004) and the Scanning Imaging Absorption spectroMeter for Atmospheric CartograpHY (SCIAMACHY) (since 2002) total ozone column products. Over the background truth of the ground-based measurements, the total ozone columns are inter-evaluated using a suite of established validation techniques; the GOME-2 time series follow the same patterns as those observed by the other satellite sensors and in particular, on the average, GOME-2 data underestimate GOME data by about 0.80%, and underestimate SCIAMACHY data by 0.37% with no seasonal dependence of the differences between GOME-2, GOME and SCIAMACHY. The latter is expected since the three data sets are based on similar DOAS algorithms. This underestimation of GOME-2 is within the uncertainty of the reference data used in the comparisons. Compared to the OMI sensor, on the average GOME-2 data underestimate OMI_DOAS (collection 3) data by 1.28%, without any significant seasonal dependence of the differences between them. The lack of seasonality might be expected since both GDP 4.4 and OMI_DOAS are DOAS-type algorithms and both consider the variability of the stratospheric temperatures in their retrievals. Compared to the OMI_TOMS (collection 3) data, no bias was found. We hence conclude that the GOME-2 total ozone columns are well suitable to continue the long-term global total ozone record with the accuracy needed for climate monitoring studies.
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