Search results for "drone"

Renal papillary necrosis, an endoscopic vision.

2019

Renal papillary necrosis is described as an ischemic or chemical lesion at the end of the Malpighi pyramid, which causes the necrosis, with detachment and expulsion of the papilla in the urine. It ...

Antenatal Ultrasound Diagnosis of Congenital Malformations of the Urinary Tract: Results and Criticism

1986

From October 1979 to June 1983 220 malformations were diagnosed antenatally at our hospital; 55 (25%) were malformations of the urinary tract, 21 of them hydronephroses and 34 of them dysplasias.

Població de dret i de fet: Una discussió al voltant de les dades registrades al País Valencià

1990

SE ESTUDIAN LAS VICISITUDES DE LA DIFERENCIA REAL ENTRE "POBLACION DE DERECHO" Y "POBLACION DE HECHO" EN LOS CENSOS Y PADRONES DEL PAIS VALENCIANO, CON ESPECIAL ATENCION AL IMPACTO DE LA MOVILIDAD VACACIONAL A PARTIR DE 1975. CRISIS, TURISMO EXTRANJERO Y ESTACIONALIDAD SON FACTORES QUE TAMBIEN DEBEN SER TENIDOS EN CUENTA. (A)

Resultados provisionales del censo de 1991 en el País Valenciano

1991

El Censo de población de 1991 en el País Valenciano presenta unos resultados que difieren poco de los del Padrón de 1986. Las cifras permanecen estancadas por el retroceso de las tasas de crecimiento vegetativo y de la inmigración. Continúan acentuándose las disparidades en la distribución de los habitantes, con pérdidas en las comarcas interiores, e incluso algunas litorales, y moderados aumentos en los municipios costeros de Castelló, l'Horta de València y las comarcas alicantinas en general

Percutaneous nephrostomy in the treatment of hydronephrosis during pregnancy: Our experience

1998

Hydronephrosis during pregnancy is commonly considered physiological due to compression of the ureters by the gravid uterus and by dilated ovarian veins. Only in symptomatic cases or secondary to obstruction is a urinary diversion required. Six cases of symptomatic hydronephrosis treated with percutaneous nephrostomy are reported. Tocolytic therapy was practised in order to avoid the risk of abortion.

Antibiotic prophylaxis in antenatal nonrefluxing hydronephrosis, megaureter and ureterocele

2012

Observation is a conservative management option in infants with nonrefluxing hydronephrosis, primary nonrefluxing megaureter and ureterocele diagnosed postnatally following antenatal detection of hydronephrosis. Antibiotic prophylaxis might be a sensible regimen under these circumstances to prevent UTI in this population who are potentially at increased risk. However, studies examining the efficacy of prophylactic antibiotics are sparse in this setting. For each condition, prophylactic policies seem extremely variable, and UTI rates vary widely with comparable rates reported between patients followed on and off antibiotics. Overall, antibiotic prophylaxis seems unnecessary in patients with …

Les drones face aux enjeux de propriété intellectuelle

2022

Posterior One-Trocar-Assisted Pyeloplasty

2019

Introduction Ureteropelvic junction obstruction is the most common pediatric obstructive uropathy. Retroperitoneal lap- aroscopic-assisted dismembered pyeloplasty (OTAP) combines the advantages of a retroperitoneal approach with the high success rate of the open technique. A modification of the OTAP, using a posterior muscle-sparing incision to approach the kidney, is described. Surgical technique With the patient placed in prone position, a transverse 15-mm-long skin incision is made. A 12-mm bal- loon Hasson trocar with operative telescope is inserted after the Gerota’s fascia has been opened. The ureteropelvic junction is exteriorized and a traditional dismembered pyeloplasty is performe…

ROS/Gazebo-Based Simulation of Quadcopter Aircrafts

2018

The main purpose of this work is to present a tutorial description on how to design and develop an observer, which is capable of estimating the position and the orientation of a drone commanded by a controller, whose shape and structure are unknown. Starting from Newton's and Euler's laws, a mathematical model describing the dynamics of a quadcopter has first been obtained. By linearizing this model it is possible to implement a Luenberger observer and validate it with simulations in a Linux environment, thanks to the use of the Ardupilot controller and the Gazebo simulator. Finally, starting from the results obtained from the simulation, it is possible to evaluate the error made in the est…

Estimating Grass Sward Quality and Quantity Parameters Using Drone Remote Sensing with Deep Neural Networks

2022

Funding Information: Funding: This research was funded by Academy of Finland ICT 2023 Smart‐HSI—“Smart hyper‐ spectral imaging solutions for new era in Earth and planetary observations” (Decision no. 335612), by the European Agricultural Fund for Rural Development: Europe investing in rural areas, Pohjois‐ Savon Ely‐keskus (Grant no. 145346) and by the European Regional Development Fund for “Cyber‐ Grass I—Introduction to remote sensing and artificial intelligence assisted silage production” pro‐ ject (ID 20302863) in European Union Interreg Botnia‐Atlantica programme. This research was car‐ ried out in affiliation with the Academy of Finland Flagship “Forest‐Human‐Machine Interplay— Buildi…