420 research outputs found
Effect of dietary supplements in reducing probability of death for uremic crises in dogs affected by chronic kidney disease (Masked RCCT)
No full textChitosan and alkalinizing agents can decrease morbidity and mortality in humans with chronic kidney disease (CKD). Whether this holds true in dog is not known. Objective of the study was to determine whether a commercial dietary supplement containing chitosan, phosphate binders, and alkalinizing agents (Renal), compared to placebo, reduces mortality rate due to uremic crises in dogs with spontaneous CKD, fed a renal diet (RD). A masked RCCT was performed including 31 azotemic dogs with spontaneous CKD. Dogs enrolled in the study were randomly allocated to receive RD plus placebo (group A; 15 dogs) or RD plus Renal (group B; 16 dogs). During a first 4-week period, all dogs were fed an RD and then randomized and clinically evaluated up to 44 weeks. The effects of dietary supplements on mortality rate due to uremic crises were assessed. At 44 weeks, compared to group A, dogs in group B had approximately 50% lower mortality rate due to uremic crises (P=0.015). Dietary supplementation with chitosan, phosphate binders, and alkalinizing agents, along with an RD, is beneficial in reducing mortality rate in dogs with spontaneous CKD. Copyright © 2012 Andrea Zatelli et al
Realizzazione di una rete GPS statica e cinematica: confronto con altre determinazioni
No full textA local GPS network has been established. All the points overlap cadastrial fisucial points of the Regione Autonoma Trentino Alto-Adige. The study area is in the surrounding of the Trento city, only three points are visible from each other and have been surveyed using traditional techniques. The GPS network has been inserted into the cartographic reference system computing the transformation parameters for the planimetric coordinates, while the orthometric heights have been obtained referring to the Italian geoid ITALGEO 95 provided by IGeS
Bilateral perirenal abscesses in a domestic neutered shorthair cat
No full textA14-month-old male neutered domestic shorthair cat
was referred for evaluation of azotemia, bilateral renomegaly,
and a 1-week history of polyuria, polydipsia, and
disorexia. On physical examination, the cat was lethargic,
pyrexic (40.78C), tachycardic, and dyspnoic. On abdominal
palpation, 2 painful, large, smooth masses were identified
in the cranial abdomen. The kidneys were not identified. A
CBC, serum biochemistry, and urinalysis were performed.
Interpretation of clinicopathologic data revealed leukocytosis
and a marked neutrophilia with evidence of toxic
changes and azotemia (BUN 73 mg/dL; reference range,
10–32 mg/dL). The urine was dilute1,2 (urine specific gravity,
1.020) and proteinuria (urine protein : creatinine ratio, was present. Several renal epithelial cells, neutrophils,
and bacteria (cocci) were observed in the urine sediment.
To identify the abdominal masses, lateral and ventrodorsal
abdominal radiographs were taken. Bilateral renomegaly
was identified on evaluation of the abdominal radiographs.
The right kidney was larger and more irregular
in shape than the left kidney, and ventral displacement of
abdominal viscera was observed on the lateral view
Comparison of glomerular number and specimen length obtained from 100 dogs via percutaneous echo-assisted renal biopsy using two different needles.
No full textOur objective was to evaluate possible differences in the number of glomeruli and length of renal biopsies collected in canine subjects by two different types of biopsy needles: a semiautomatic 18-gauge Trucut and an automated 18-gauge Jamshidi modified (Biopince). One hundred biopsy samples obtained from dogs of different ages and gender affected by different nephropathies were evaluated retrospectively. All animals were biopsied using one of the two different needles. Biopsies were performed under ultrasound guidance and evaluated by a single pathologist. Statistical analysis was performed to evaluate possible differences in the number of glomeruli and length of renal biopsies collected comparisons were determined between subgroups of dogs with or without the identification of renal interstitial infiltrates and/or fibrosis. Neither the mean difference of the number of glomeruli nor the length of tissue sample collected with the different needles was significantly different. Likewise, the average biopsy length did not differ in dogs with or without renal interstitial infiltrate in animals biopsied with either biopsy needle. Both the Biopince and the Trucut devices provide diagnostically adequate biopsy renal specimens using ultrasound-guidance
Ultrasound-assisted drainage and alcoholization of hepatic and renal cysts: 22 cases.
No full textTwenty-two dogs and cats with symptomatic renal or hepatic cysts that had undergone ultrasound-assisted drainage and alcoholization were retrospectively evaluated. Common presenting complaints were anorexia, reluctance to move, and vomiting. Abdominal pain was observed in all cases. Systemic hypertension was identified in four dogs and four cats with renal cysts. Cyst drainage and alcoholization were achieved without complications in 19 animals, and all clinical signs resolved after the procedure. In three cases, transient bleeding was observed during alcoholization, and the procedure was interrupted. Blood pressure normalized in the four dogs with renal cysts, but it remained elevated in the four cats
Planning GPS automatico con ostruzioni realistiche
No full textA good planning is a key factor for the success of a GPS survey. A realistic forecast of the DOP requires to take into account the obstacles that can hide part of the sky. This is specially true in a mountaneous region (natural obstacle) and in the urban area (artifact obstacle). In practice it is relatively easy to take into account the various obstacle in the planning of a static survey, but it is more difficoult to do the same for a kinematic survey. In the present work an authomatic procedure for the planning of a kinematic survey has been realized with a dedicated procedure inside a GIS. The realized procedure is interfaced with the almanac, a DHM for the planning in M.A. and a carthographic data base for the planning in urban areas (still in project) and computes the DOP with the standard algorithm for the points in a given trajectory
Obstructive renal cyst in a dog: Ultrasonography-guided treatment using puncture aspiration and injection with 95% ethanol
No full textA12-year-old, intact male, mixed-breed dog was evaluated
after surgical removal of a mast cell tumor from
the shoulder. Results of laboratory tests were within the
reference ranges, but examination of urinary sediment identified
epithelial cells of the upper urinary tract and microscopic
hematuria. Abdominal ultrasound examination performed
after a 12-hour fast identified a simple cyst in the
left kidney. The cyst was approximately 26 mm in diameter,
was anechoic, and had a thin, slightly hyperechoic wall
with distal acoustic enhancement accompanied by dilatation
of the caudal papillary duct and renal pelvis (Fig 1). Excretory
urography with iopamidola contrast (800 mg/kg IV)
confirmed the presence of dilatation of the left renal pelvis
and collecting syste
Field measurements in river embankments: validation and management with spatial database and webGIS
No full textThis study focuses on the development of a system with a spatial database and a webGIS able to store, validate and display the data to assist the decision makers in managing Early Warning Systems for river embankment failure. In order to prevent misleading results it is essential to have a tool able of managing a large number of data for checking their reliability and for locating them in the space. In this paper, special attention was paid in the development of procedures to assess the reliability of the measures. For this purpose the database includes all the information needed to describe the instrument performance, such as the sand pack size and casing diameter of open-standpipe piezometers for evaluating their time lag, and the calibration curves of transducers with the possibility of their updating. The position of the non-functioning instruments is identified through the analysis of the electrical signal and spatial displays, while the analyses of the redundancy and coherence of measures is used for detecting doubtful data. Database and webGIS was applied to the monitoring data of an embankment of the Adige River in Northern Italy. The database and webGIS system has proved to be a suitable and effective tool for the management and validation of real-time data and periodical field measurements
GIS applications with GRASS
No full textThe application of GIS has become fundamental in environmental studies since it allows the integration of heterogeneous data.
Several applications of the GRASS GIS where the use of different data types leads to the realization of environmental models are presented.
The GRASS GIS has been used to develop and test forest fire risk models combining several morphologic, vegetational and anthropic factors; it has been used to set up a new avalanche risk model which allows the evaluation of the ability of the different vegetation types to protect against avalanches. A procedure for the automatic determination of the forest coverage evolution has been developed using the GRASS image analysis capability. The production of GPS satellites' visibility maps has been automated using the shadow generation algorithm in GRASS. This algorithm is also used to evaluate solar radiation and its relation to vegetation types
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