19,172 research outputs found
Abnormal oxidative metabolism in a quiet genomic background underlies clear cell papillary renal cell carcinoma
SEAD: Preserving Data for Environmental Sciences in Areas of Climate, Land-Use, and Environmental Management
NSF Funded DataNet Project #OCI0940824
• SEAD goal is to contribute infrastructure to the NSF DataNet
Vision that supports data
• Access
• Sharing
• Reuse
• Preservation
• Direct work with data at the NSF STC NCED (National Center for Earth-Surface Dynamics
On generalized Sethi-Vafa-Witten formulas
We present a formula for computing proper pushforwards of classes in the Chow
ring of a projective bundle under the projection \pi:\Pbb(\Escr)\rightarrow
B, for a non-singular compact complex algebraic variety of any dimension.
Our formula readily produces generalizations of formulas derived by Sethi,Vafa,
and Witten to compute the Euler characteristic of elliptically fibered
Calabi-Yau fourfolds used for F-theory compactifications of string vacua. The
utility of such a formula is illustrated through applications, such as the
ability to compute the Chern numbers of any non-singular complete intersection
in such a projective bundle in terms of the Chern class of a line bundle on
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