6 documents found, page 1 of 1
BIOFRAG - a new database for analyzing BIOdiversity responses to forest FRAGmen...
Pfeifer, Marion; Lefebvre, Véronique; Gardner, Toby Alan; Arroyo-Rodríguez, Víctor; Baeten, Lander; Banks-Leite, Cristina; Barlow, JosHabitat fragmentation studies have produced complex results that are challenging to synthesize. Inconsistencies among studies may result from variation in the choice of landscape metrics and response variables, which is often compounded by a lack of key statistical or methodological information. Collating primary datasets on biodiversity responses to fragmentation in a consistent and flexible database permits s...
Mapping global potential risk of mango sudden decline disease caused by Ceratoc...
Galdino, Tarcísio Visintin da Silva; Kumar, Sunil; Oliveira, Leonardo S. S.; Alfenas, Acelino C.; Neven, Lisa G.; Al-Sad, Abdullah M.The Mango Sudden Decline (MSD), also referred to as Mango Wilt, is an important disease of mango in Brazil, Oman and Pakistan. This fungus is mainly disseminated by the mango bark beetle, Hypocryphalus mangiferae (Stebbing), by infected plant material, and the infested soils where it is able to survive for long periods. The best way to avoid losses due to MSD is to prevent its establishment in mango production ...
Automated retina identification based on multiscale elastic registration
Figueiredo, Isabel N.; Moura, Susana; Neves, Júlio S.; Pinto, Luís; Kumar, Sunil; Oliveira, Carlos M.; Ramos, João D.In this work we propose a novel method for identifying individuals based on retinal fundus image matching. The method is based on the image registration of retina blood vessels, since it is known that the retina vasculature of an individual is a signature, i.e., a distinctive pattern of the individual. The proposed image registration consists of a multiscale affine registration followed by a multiscale elastic ...
Automated lesion detectors in retinal fundus images
Figueiredo, Isabel N.; Kumar, Sunil; Oliveira, Carlos M.; Ramos, João Diogo; Engquist, BjornDiabetic retinopathy (DR) is a sight-threatening condition occurring in persons with diabetes, which causes progressive damage to the retina. The early detection and diagnosis of DR is vital for saving the vision of diabetic persons. The early signs of DR which appear on the surface of the retina are the dark lesions such as microaneurysms (MAs) and hemorrhages (HEMs), and bright lesions (BLs) such as exudates....
Computer-assisted bleeding detection in wireless capsule endoscopy images
Figueiredo, Isabel N.; Kumar, Sunil; Leal, Carlos; Figueiredo, Pedro N.Wireless capsule endoscopy (WCE) has revolutionised the diagnosis and treatment of gastrointestinal tract, especially the small intestine where traditional endoscopies cannot reach. However, this new technology leads to the inspection of a large number of images, which is a time-consuming process and also too hard by naked eyes for doctors. In this paper, we propose a new computerised method for bleeding detect...
Antidiabetic and antihyperlipidemic effects of Dillenia indica (L.) leaves extract
Kumar, Sunil; Kumar, Vipin; Prakash, OmThe present study was carried out to evaluate antidiabetic and antihyperlipidemic effects of Dillenia indica methanolic leaves extracts in streptozotocin induced diabetic Wistar rats by administering graded oral doses (250 and 500 mg/kg body weight) for 21 days. The extract showed significant antidiabetic activity (p; Realizou-se o presente estudo para avaliar os efeitos antidiabético e anti-hiperlipidêmico de ...