Detecting Objects for Indoor Monitoring and Surveillance for Mobile Robots

Monitoring and surveillance by means of mobile robots are of great importance in a number of various applications. The level of technology and science development is high enough to use robotic vehicle for monitoring in dangerous or hard-to-reach areas, for continuous surveillance of large industrial objects, in military purposes. The main problems in this area are navigation and control of vehicle. The majority of articles are dedicated to problems of motion control of wheeled mobile robots with two or three wheels [1-2]. As to four-wheeled mobile robots its kinematics and dynamics are considered in [3].

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Serological screening for Brucella spp. and Leptospira spp. antibodies in southern elephant seals Mirounga leonina from Elephant Island, Antarctica, in 2003 and 2004

Diseases of Aquatic Organisms ◽

10.3354/dao03548 ◽

2020 ◽

Vol 142 ◽

pp. 161-170

Author(s):

AM Sánchez-Sarmiento ◽

V Ruoppolo ◽

MMC Muelbert ◽

JS Ferreira Neto ◽

JL Catão-Dias

Keyword(s):

Austral Summer ◽

Agglutination Test ◽

South Shetland Islands ◽

Climate Change Scenarios ◽

Mirounga Leonina ◽

Serological Screening ◽

Elephant Seals ◽

Southern Elephant Seals ◽

Monitoring And Surveillance ◽

Elephant Island

Brucella spp. and Leptospira spp. antibodies were surveyed in 35 southern elephant seals (SESs) Mirounga leonina at Elephant Island (South Shetland Islands), western Antarctic peninsula, in the Austral summer of 2003 and 2004. The rose Bengal test and a commercial competitive ELISA (c-ELISA) were used to detect Brucella spp. exposure, and the microscopic agglutination test (MAT) with 22 live serovars was used to determine anti-Leptospira spp. antibodies. We found evidence of Brucella spp. exposure in 3 of 35 (8.6%) SESs tested via the c-ELISA displaying high percentage inhibition (PI), similar to other studies in pinnipeds in which Brucella spp. antibodies have been determined. Two of the 3 positives were pups (PI = 70.4 and 86.6%), while the third was an adult female (PI = 48.8%). The 3 c-ELISA positive SESs were additionally tested via the serum agglutination test but were found to be negative. All individuals were negative for antibodies against 22 Leptospira spp. serovars by MAT. These results contribute to the knowledge and monitoring of zoonotic pathogens with epizootic potential in Southern Ocean pinnipeds. Given the potential impact that pathogens may have on the abundance of wild (sometimes threatened and endangered) populations, constant monitoring and surveillance are required to prevent pathogen spread, particularly under forecast climate change scenarios.

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