TY  - JOUR
A1  - Taubenböck, H
A1  - Wurm, M
A1  - Netzband, M
A1  - Zwenzner, H
A1  - Roth, A
A1  - Rahman, A
A1  - Dech, S
T1  - Flood risks in urbanized areas - multi-sensoral approaches using remotely sensed data for risk assessment
JF  - NATURAL HAZARDS AND EARTH SYSTEM SCIENCES
N2  - Estimating flood risks and managing disasters combines knowledge in climatology, meteorology, hydrology, hydraulic engineering, statistics, planning and geography - thus a complex multi-faceted problem. This study focuses on the capabilities of multi-source remote sensing data to support decision-making before, during and after a flood event. With our focus on urbanized areas, sample methods and applications show multi-scale products from the hazard and vulnerability perspective of the risk framework. From the hazard side, we present capabilities with which to assess flood-prone areas before an expected disaster. Then we map the spatial impact during or after a flood and finally, we analyze damage grades after a flood disaster. From the vulnerability side, we monitor urbanization over time on an urban footprint level, classify urban structures on an individual building level, assess building stability and quantify probably affected people. The results show a large database for sustainable development and for developing mitigation strategies, ad-hoc coordination of relief measures and organizing rehabilitation.
KW  - damage assessment disaster
KW  - satellite data
KW  - management
KW  - radar
KW  - inundation
KW  - disaster
KW  - sar
KW  - gis
KW  - integration
KW  - earthquake
Y1  - 2011
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-139605
VL  - 11
IS  - 2
ER  - 
TY  - JOUR
A1  - Rushdi, Mohammed I.
A1  - Abdel-Rahman, Iman A. M.
A1  - Attia, Eman Zekry
A1  - Saber, Hani
A1  - Saber, Abdullah A.
A1  - Bringmann, Gerhard
A1  - Abdelmohsen, Usama Ramadan
T1  - The biodiversity of the genus Dictyota: phytochemical and pharmacological natural products prospectives
JF  - Molecules
N2  - Although a broad variety of classes of bioactive compounds have already been isolated from seaweeds of the genus Dictyota, most different species are still chemically and biologically unexplored. Dictyota species are well-known brown seaweeds belonging to the Dictyotaceae (Phaeophyta). The phytochemical composition within the genus Dictyota has recently received considerable interest, and a vast array of components, including diterpenes, sesquiterepenes, sterols, amino acids, as well as saturated and polyunsaturated fatty acids, have been characterized. The contribution of these valued metabolites to the biological potential, which includes anti-proliferative, anti-microbial, antiviral, antioxidant, anti-inflammatory, and anti-hyperpigmentation activities, of the genus Dictyota has also been explored. Therefore, this is the most comprehensive review, focusing on the published literature relevant to the chemically and pharmacologically diverse biopharmaceuticals isolated from different species of the genus Dictyota during the period from 1976 to now.
KW  - Phaeophyceae
KW  - Dictyotaceae
KW  - marine macroalgae
KW  - brown seaweeds
KW  - natural products
KW  - bioactivities
KW  - Dictyota
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-302428
SN  - 1420-3049
VL  - 27
IS  - 3
ER  -