Results 41 to 50 of about 28,906 (261)
Ecology and evolution of pyrazines in insects
ABSTRACT Chemical communication is the oldest and most widespread form of signalling among and within organisms. Among the many compounds involved in such communication, pyrazines – nitrogen‐containing heterocyclic molecules – are especially intriguing due to their widespread occurrence across the tree of life, from bacteria and fungi to insects and ...
Zowi Oudendijk +2 more
wiley +1 more source
Trace element contamination in the arms of the Danube Delta (Romania/Ukraine): Current state of knowledge and future needs [PDF]
This paper provides the first critical synopsis of contamination by selected trace elements in the whole Danube Delta (Romania/Ukraine) to: identify general patterns of contamination by trace elements across the Delta, provide recommendations to refine
Secrieru, Dan +9 more
core +1 more source
In the present paper an overview of published and unpublished results of archaeological and sedimentary investigations, predominantly reflect on 14th-16th-century changes, are provided and evidence compared to documentary information on flood events and ...
Kiss Andrea, Laszlovszky József
doaj +1 more source
Flight of the dragons: a global review of migration in Odonata
ABSTRACT Insects are the most abundant and ecologically important animal migrants. Yet, we know relatively little about the patterns and processes underlying insect migration. Dragonflies (Anisoptera) and damselflies (Zygoptera) comprise the ancient insect order Odonata, whose ancestors were the first organisms to fly on Earth.
Johanna S.U. Hedlund +3 more
wiley +1 more source
All energy matters Let us broaden the discussion on solutions to climate change. Greenhouse gases have upset the delicate equilibrium of the Earth's energy balance. Consequently, all sources of heat affect the temperature of the Earth. Although the amount of additional heat generated by humans is a fraction of that produced by the sun, it is generated ...
Martin Bertau +2 more
wiley +1 more source
A century of human interventions on sediment flux variations in the Danube-Black Sea transition zone [PDF]
Many deltas around the world have recorded a decreasing sediment input, mostly due to retention in dams constructed on the river or in the river basin.
Constantinescu, Adriana Maria +6 more
core +1 more source
Bio‐inspired nanophotonics: Structural color, chirality, and resonance metasurfaces
A butterfly‐wing‐inspired anisotropic plasmonic flatband resonant metasurface. Insets, photo of the butterfly, Sasakia charonda, and the SEM image of its wing scale (above); the SEM image of the metasurface (below). Abstract The dazzling colors of butterfly wings and hummingbird feathers are not painted with pigments, but crafted by nature's invisible ...
Weihan Liu, Yao Liang, Din Ping Tsai
wiley +1 more source
Transformation potentials of the Danube coast in Novi Sad on the move from Šodros to Štrand [PDF]
Novi Sad waterfront has been unregulated for a long time. Programmatically and functionally it is not adapted to the needs of the city. In physical and visual terms it is alienated from its users.
Kopić Miloš Đ., Polić Darko M.
doaj
ABSTRACT On its 100th anniversary in 2026, the German Soil Science Society (DBG) is looking back not only on an eventful history with traditions and impressive achievements but also with painful interruptions and ruptures. One curious fact is that the DBG was initially founded as the national section of the International Soil Science Society (ISSS ...
Karl‐Heinz Feger
wiley +1 more source
Comparative Analysis of British, Austrian, and Greek Consular Networks in the Romanian Danube Ports (1850 – 1900) [PDF]
In the second half of the 19th century, a growing interest from prominent European actors in the strategic and economic potential of the Romanian Danube ports became increasingly evident.
Ionel Constantin MITEA
doaj +1 more source

