Our nanomineralogical investigation of melt inclusions in corundum xenocrysts from the Mt. Carmel area, Israel has revealed seven IMA-approved new minerals since 2021. We report here four new oxide minerals and one new alloy mineral.
View Article and Find Full Text PDFThe crystal structure of ilmajokite, a rare Na-K-Ba-Ce-titanosilicate from the Khibiny mountains, Kola peninsula, Russia, has been solved using single-crystal X-ray diffraction data. The crystal structure is based on a 3D titanosilicate framework consisting of trigonal prismatic titanosilicate (TPTS) clusters centered by Ce in [9]-coordination. Four adjacent TPTS clusters are linked into four-membered rings within the (010) plane and connected ribbons parallel to 101.
View Article and Find Full Text PDFActa Crystallogr B Struct Sci Cryst Eng Mater
December 2015
The recently published method for the structure refinement from three-dimensional precession electron diffraction data using dynamical diffraction theory [Palatinus et al. (2015). Acta Cryst.
View Article and Find Full Text PDFRev Inst Med Trop Sao Paulo
January 2016
The aims of this study were to compare the detection of human herpesviruses (HHVs) in the saliva of HIV-infected and healthy control children, and to evaluate associations between viral infection and gingivitis and immunodeficiency. Saliva samples were collected from 48 HIV-infected and 48 healthy control children. Clinical and laboratory data were collected during dental visits and from medical records.
View Article and Find Full Text PDFTrans R Soc Trop Med Hyg
May 2013
Background: Yellow fever is an acute, frequently fatal, febrile arbovirosis that in Brazil occurs only in the sylvatic form. Sylvatic yellow fever (SYF) appears in sporadic outbreaks over a large area of Brazil. In this paper, we analyze the demographic profile of 831 SYF cases that occurred between 1973 and 2008, to determine which segments of the exposed population are at greater risk.
View Article and Find Full Text PDFBackground: Influenza viruses cause highly contagious acute respiratory illnesses with significant mortality, especially among young children, elderly people, and individuals with serious medical conditions. This encourages the development of new treatments for human flu. Biotherapies are diluted solutions prepared from biological products compounded following homeopathic procedures.
View Article and Find Full Text PDFThe aim of this study was to investigate and compare the frequency of BKV, JCV, WUV, and KIV in the saliva of healthy individuals. Samples were analyzed for the presence of polyomaviruses (BKV, JCV, WUV, and KIV) DNA by real-time PCR. Of the 291 samples tested, 71 (24.
View Article and Find Full Text PDFObjectives: To compare epidemiological aspects of young (15 to 49 years old) and older (more than 50 years old) AIDS patients.
Methods: We analyzed 511,633 AIDS cases notified to the Brazilian Ministry of Health in the period of 1980-2008 looking at sex, age ranges, educational level and exposure category. Patients were divided into three age groups: under 15, from 15 to 49 and over 50 years old.
Introduction: Sylvatic yellow fever (SYF) is enzootic in Brazil, causing periodic outbreaks in humans living near forest borders or in rural areas. In this study, the cycling patterns of this arbovirosis were analyzed.
Methods: Spectral Fourier analysis was used to capture the periodicity patterns of SYF in time series.
Gluconacetobacter diazotrophicus, an endophyte isolated from sugarcane, is a strict aerobe that fixates N(2). This process is catalyzed by nitrogenase and requires copious amounts of ATP. Nitrogenase activity is extremely sensitive to inhibition by oxygen and reactive oxygen species (ROS).
View Article and Find Full Text PDFTemperatures in the city of Rio de Janeiro in the first quarter of the year over the period 1986-2003, especially the minimum, were significantly higher in the years in which dengue epidemics started in the city. There was no significant relationship with total rainfall for the same quarter of the year, but epidemics were more frequent in the years in which the volume of rain during the summer was small (less than 200 mm).
View Article and Find Full Text PDFDengue epidemics occur typically in the warmest months without qualitative differences for the Brazilian geographic regions. However, this disease has an important quantitative difference. We observe two clusters in the country regarding the number of case notifications: The first cluster is formed by the North-East and South-East regions, that sum about 86% of the all notifications; and the second is formed by the South, North and Center-West regions.
View Article and Find Full Text PDFHerpes simplex virus type 1 (HSV-1) ophthalmic disease is the most common cause of corneal blindness in humans world-wide. Current culture techniques for HSV take several days and commercially available HSV laboratory based diagnostic techniques vary in sensitivity. Our study was conducted to evaluate the use of a quicker and simpler method to herpes ophthalmic diagnosis.
View Article and Find Full Text PDFCurr Opin Psychiatry
September 2006
Purpose Of Review: Individuals with personality disorders have difficulties in finding specific institutions or services that are designated to bind this kind of problem. These are people who are required to go through many diagnoses and consult many professionals before someone produces the correct diagnosis for their condition. This article reviews the new evidence in the management of personality disorders and incorporates reliable data to determine global clinical recommendations for treatment.
View Article and Find Full Text PDFFifty six cases of a forensic population were submitted to a cluster analysis to observe the aglomerative behavior in relation to the total scores of the items comprising the PCL-R Psychopathy Checklist Revised [R.D. Hare, Manual for the Hare Psychopathy Checklist-Revised, Multi-Health System, Toronto, 1991].
View Article and Find Full Text PDFThis study introduces a Portuguese-language version of psychopathy checklist-revised (PCL-R) [Harv. Mental Health Lett. 12 (1995) 4] in the Brazilian penitentiary system.
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