Most corn earworms cannot survive the cold of a Northeastern winter, but each summer this sweet corn pest arrives back in the cornfields of the northeastern United States more quickly than most people believe is possible. Now, a team of Penn State meteorologists thinks it knows how the small moths travel long distances so quickly, and perhaps can predict where and when they will appear next.
"For years, researchers have assumed that the moths travel in parcels of air," says Matthew Welshans, undergraduate in meteorology and undergraduate research assistant at Penn States Environment Institute. "Few had actually tested this assumption, and no one tried to predict where or when the moths would land and earworms would appear in the Northeastern states."
Working with Dr. Shelby Fleischer, professor of entomology; Paul Knight, Penn State meteorologist; and Dr. Douglas A. Miller, assistant professor of geography, Welshans investigated the potential paths of corn earworm moths and other pests such as armyworm if they rode the wind as they spread northward during the spring and summer.
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University of Connecticut researchers have created a biodegradable composite made of silk fibers that can be used to repair broken load-bearing bones without the complications sometimes presented by other materials.
Repairing major load-bearing bones such as those in the leg can be a long and uncomfortable process.
Study published in the journal ACS Applied Materials & Interfaces is the outcome of an international effort that included teams from Dresden and Berlin in Germany, and the US.
Scientists at the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) together with colleagues from the Helmholtz-Zentrum Berlin (HZB) and the University of Virginia...
Novel highly efficient and brilliant gamma-ray source: Based on model calculations, physicists of the Max PIanck Institute for Nuclear Physics in Heidelberg propose a novel method for an efficient high-brilliance gamma-ray source. A giant collimated gamma-ray pulse is generated from the interaction of a dense ultra-relativistic electron beam with a thin solid conductor. Energetic gamma-rays are copiously produced as the electron beam splits into filaments while propagating across the conductor. The resulting gamma-ray energy and flux enable novel experiments in nuclear and fundamental physics.
The typical wavelength of light interacting with an object of the microcosm scales with the size of this object. For atoms, this ranges from visible light to...
Stable joint cartilage can be produced from adult stem cells originating from bone marrow. This is made possible by inducing specific molecular processes occurring during embryonic cartilage formation, as researchers from the University and University Hospital of Basel report in the scientific journal PNAS.
Certain mesenchymal stem/stromal cells from the bone marrow of adults are considered extremely promising for skeletal tissue regeneration. These adult stem...
In the fight against cancer, scientists are developing new drugs to hit tumor cells at so far unused weak points. Such a “sore spot” is the protein complex...
13.04.2018 | Event News
12.04.2018 | Event News
09.04.2018 | Event News
20.04.2018 | Physics and Astronomy
20.04.2018 | Interdisciplinary Research
20.04.2018 | Physics and Astronomy