Can the present dynamics of spiral galaxies tell us something about the merging history, the formation and evolution of disks? Galaxy interactions thicken or destroy disks; the simultaneous presence of thick and thin disks is a tracer of past accretion, and also of recent disk re-formation. Observation of a large number of counter-rotating disks is also evidence of past mergers, as well as the ...

Ether Hpid analogues of platelet-activating factor (l-octadecyl-2-acetyI-Ã-Ji-grycero-3-phosphocholine) possess a wide range of biological ac tivities, including inhibition of neoplastic cell growth in vitro and in vivo. This activity is believed to be membrane mediated. Three different ether lipid analogues, l-octadecyl-2-methyl-r<ic-glycero-3-phosphocholine, l-thiohexadecyl-2-ethyl-rac-glycer...

Ether lipid analogues of platelet-activating factor (1-octadecyl-2-acetyl-sn-glycero-3-phosphocholine) possess a wide range of biological activities, including inhibition of neoplastic cell growth in vitro and in vivo. This activity is believed to be membrane mediated. Three different ether lipid analogues, 1-octadecyl-2-methyl-rac-glycero-3-phosphocholine, 1-thiohexadecyl-2-ethyl-rac-glycero-3...

Expanding upon the IRAC survey from Dahm and Hillenbrand (2007), we describe Spitzer IRAC and MIPS observations of the populous, 5 Myr-old open cluster NGC 2362. We analyze the mid-IR colors of cluster members and compared their spectral energy distributions to star+circumstellar disk models to constrain the disk morphologies and evolutionary states. Early/intermediate-type confirmed/candidate ...

Semiconductor nanowires have achieved great attention for integration in next-generation electronics. However, for nanowires with diameters comparable to the Debye length, which would generally be required for one-dimensional operation, surface states degrade the device performance and increase the low-frequency noise. In this study, single In(2)O(3) nanowire transistors were fabricated and cha...

We present a CO(2-1) and 1240μm continuum survey of 23 debris disks with spectral types B9-G1, observed at an angular resolution of 0. ′′5-1” with the Atacama Large Millimeter/Submillimeter Array (ALMA). The sample was selected for large infrared excess and age ∼10 Myr, to characterize the prevalence of molecular gas emission in young debris disks. We identify three CO-rich debris disks, plus t...

A novel 2'-modification, 2'-O-[2-(methylthio)ethyl] or 2'-O-MTE, has been incorporated into oligonucleotides and evaluated for properties relevant to antisense activity. The results were compared with the previously characterized 2'-O-[2-(methoxy)ethyl] 2'-O-MOE modification. As expected, the 2'-O-MTE modified oligonucleotides exhibited improved binding to human serum albumin compared to the 2'...