Jorge I Pérez

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OBJECTIVE To report the clinical, laboratory and sonographic findings in 76 adult cases of dengue hemorrhagic fever (DHF). PATIENTS AND METHODS A dengue 3 epidemic occurred in Havana City from June 2001 to March 2002. 12,889 cases were reported, with 81 DHF cases. From this, 76 serologically confirmed cases were studied descriptively. RESULTS Bronchial(More)
For ruminants reared on grazing systems, gastrointestinal nematode (GIN) parasite infections represent the class of diseases with the greatest impact on animal health and productivity. Among the many possible strategies for controlling GIN infection, the enhancement of host resistance through the selection of resistant animals has been suggested by many(More)
The seasonal variation of the hydrolytic activities acid and alkaline phosphatase, α-glucosidase and protease, was studied in both the aerated and anoxic phases of a full-scale membrane bioreactor (MBR) (total operational volume = 28.2 m(3)), operated in pre-denitrification mode and fed real urban wastewater. Non-metric multidimensional scaling (MDS) and(More)
We present a noninvasive technique for high-speed measuring of eye retraction and eyelid position during blinking. The anterior chamber of the eye is illuminated by the slit lamp of a biomicroscope and eye dynamics during a blinking sequence are captured with a high-speed camera working at 500 frames per second. Digital image processing allows quantitative(More)
The behaviour and fate of carbamazepine (CBZ) in urban wastewater treatment by a membrane bioreactor (MBR) and its possible effects on the system's efficiency, and on mixed microbial communities, has been studied. The experimental microfiltration MBR system, with capacity to treat 10.8 m(3) d(-1) of urban wastewater, operated with a pre-denitrification(More)
1 ETSI Telecomunicación Department of Signals, Systems and Radiocommunications, Universidad Politécnica de Madrid, 28040 Madrid, Spain 2Department of Signal Theory and Communications, Universitat Politécnica de Catalunya, 08034 Barcelona, Spain 3Department of Electrical Engineering, Princeton University, Princeton, NJ 08544, USA 4Department of Electrical(More)
OBJECTIVE The most unpleasant consequence of upper thoracic sympathectomy is compensatory sweating (CS). De-pending on the series, the incidence of CS ranges from 24% to 85%. The aim of this study was to determine the relation between CS and the following factors: distribution of hyperhidrosis, procedure performed (unilateral, synchronic bilateral, or(More)
Vascular complications remain an important cause of postoperative morbidity and mortality in liver transplant patients. There is no elective treatment and the need for retransplantation is common. Herein, we have reported an unusual case of nonanastomotic inferior vena cava thrombosis in a patient with a piggyback caval anastomosis. The conditions was(More)
Evolution of filamentous bacteria in two full-scale experimental MBR systems (microfiltration and ultrafiltration) was studied during two years. Sludge Retention Time (SRT) and Hydraulic Retention Time (HRT) were modified and acted as variables, together with temperature and variation in loading. With SRT values between 20 and 35 d and HRT between 31 and 40(More)
In 1994, Madoni created the Sludge Biotic Index (SBI) based on the presence and abundance of certain key protozoan groups. The use of this index has become increasingly common in wastewater treatment plant control and its applicability has been demonstrated. In this study, we applied the SBI index to a pilot-scale membrane bioreactor equipped with(More)