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5 papers found.
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Hyperfine spectroscopy of hydrogen and antihydrogen in ASACUSA

The ASACUSA collaboration at the Antiproton Decelerator of CERN aims at a precise measurement of the antihydrogen ground-state hyperfine structure as a test of the fundamental CPT symmetry. A beam of antihydrogen atoms is formed in a CUSP trap, undergoes Rabi-type spectroscopy and is detected downstream in a dedicated antihydrogen detector. In parallel measurements using a...

In-beam measurement of the hydrogen hyperfine splitting and prospects for antihydrogen spectroscopy

Antihydrogen, the lightest atom consisting purely of antimatter, is an ideal laboratory to study the CPT symmetry by comparison with hydrogen. With respect to absolute precision, transitions within the ground-state hyperfine structure (GS-HFS) are most appealing by virtue of their small energy separation. ASACUSA proposed employing a beam of cold antihydrogen atoms in a Rabi-type...

Hypoxia-activated chemotherapeutic TH-302 enhances the effects of VEGF-A inhibition and radiation on sarcomas

Eisinger-Mathason 5 C P Hart 6 E Choy 7 M C Simon 5 8 S S Yoon 0 0 Department of Surgery, Memorial Sloan-Kettering Cancer Center , H-1209, 1275 York Avenue, New York, NY 10021 , USA 1 Department of Surgery

Hypoxia-inducible factor-2 regulates vascular tumorigenesis in mice

The von Hippel–Lindau tumor suppressor pVHL regulates the stability of hypoxia-inducible factors (HIF)-1 and -2, oxygen-sensitive basic helix–loop–helix transcription factors, which mediate the hypoxic induction of angiogenic growth factors such as vascular endothelial growth factor. Loss of pVHL function results in constitutive activation of HIF-1 and HIF-2 and is associated...

Kinetics of fast haemoglobin in diabetic rats

This study was designed to examine the appearance and disappearance kinetics of glycosylated haemoglobin during abrupt changes of blood glucose in the rat. The concentration of the fast haemoglobin component, which has similar chromatographic and electrophoretic profiles to human haemoglobin A1, was measured after the induction of diabetes by streptozotocin and its cure by...