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Showing 13 to 24 of 192 entries
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Autoresonant excitation of antiproton plasmas.

Physical review letters

Andresen GB, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Bowe PD, Butler E, Carpenter PT, Cesar CL, Chapman S, Charlton M, Fajans J, Friesen T, Fujiwara MC, Gill DR, Hangst JS, Hardy WN, Hayden ME, Humphries AJ, Hurt JL, Hydomako R, Jonsell S, Madsen N, Menary S, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Robicheaux F, Sarid E, Silveira DM, So C, Storey JW, Thompson RI, van der Werf DP, Wurtele JS, Yamazaki Y.
PMID: 21405235
Phys Rev Lett. 2011 Jan 14;106(2):025002. doi: 10.1103/PhysRevLett.106.025002. Epub 2011 Jan 14.

We demonstrate controllable excitation of the center-of-mass longitudinal motion of a thermal antiproton plasma using a swept-frequency autoresonant drive. When the plasma is cold, dense, and highly collective in nature, we observe that the entire system behaves as a...

Trapped antihydrogen.

Nature

Andresen GB, Ashkezari MD, Baquero-Ruiz M, Bertsche W, Bowe PD, Butler E, Cesar CL, Chapman S, Charlton M, Deller A, Eriksson S, Fajans J, Friesen T, Fujiwara MC, Gill DR, Gutierrez A, Hangst JS, Hardy WN, Hayden ME, Humphries AJ, Hydomako R, Jenkins MJ, Jonsell S, Jørgensen LV, Kurchaninov L, Madsen N, Menary S, Nolan P, Olchanski K, Olin A, Povilus A, Pusa P, Robicheaux F, Sarid E, el Nasr SS, Silveira DM, So C, Storey JW, Thompson RI, van der Werf DP, Wurtele JS, Yamazaki Y.
PMID: 21085118
Nature. 2010 Dec 02;468(7324):673-6. doi: 10.1038/nature09610. Epub 2010 Nov 17.

Antimatter was first predicted in 1931, by Dirac. Work with high-energy antiparticles is now commonplace, and anti-electrons are used regularly in the medical technique of positron emission tomography scanning. Antihydrogen, the bound state of an antiproton and a positron,...

Optimizing selectivity during reversed-phase high performance liquid chromatography method development: prioritizing experimental conditions.

Journal of chromatography. A

Snyder LR, Dolan JW.
PMID: 23830242
J Chromatogr A. 2013 Aug 09;1302:45-54. doi: 10.1016/j.chroma.2013.05.082. Epub 2013 Jun 10.

Several different conditions can be varied to improve selectivity for reversed-phase chromatography (RPC). A reexamination of literature data suggests that changes in selectivity due to a change of column or mobile phase pH are largely replicated by changes in...

MR Spectroscopy in the diagnosis and treatment of breast cancer.

Seminars in breast disease

Nelson MT, Everson LI, Garwood M, Emory T, Bolan PJ.
PMID: 21490877
Semin Breast Dis. 2008 Jun 01;11(2):100-105. doi: 10.1053/j.sembd.2008.03.004.

In vivo proton magnetic resonance spectroscopy ((1)H MRS) is rapidly becoming useful as a clinical tool for diagnosing and characterizing breast cancers. Alterations of the levels of choline-containing metabolites are associated with malignancy. High-field MR scanners at 1.5 T,...

Antiproton, positron, and electron imaging with a microchannel plate/phosphor detector.

The Review of scientific instruments

, Andresen GB, Bertsche W, Bowe PD, Bray CC, Butler E, Cesar CL, Chapman S, Charlton M, Fajans J, Fujiwara MC, Gill DR, Hangst JS, Hardy WN, Hayano RS, Hayden ME, Humphries AJ, Hydomako R, Jørgensen LV, Kerrigan SJ, Kurchaninov L, Lambo R, Madsen N, Nolan P, Olchanski K, Olin A, Povilus AP, Pusa P, Sarid E, Seif El Nasr S, Silveira DM, Storey JW, Thompson RI, van der Werf DP, Yamazaki Y.
PMID: 20073120
Rev Sci Instrum. 2009 Dec;80(12):123701. doi: 10.1063/1.3266967.

A microchannel plate (MCP)/phosphor screen assembly has been used to destructively measure the radial profile of cold, confined antiprotons, electrons, and positrons in the ALPHA experiment, with the goal of using these trapped particles for antihydrogen creation and confinement....

Entrance- and exit-channel effects and the suppression of neutron emission from 64Ni+92Zr-->156Er*.

Physical review letters

Bishop PJ, Kirwan A, Love DJ, Nelson AH, Nolan PJ, Thornley DJ, Twin PJ.
PMID: 10034091
Phys Rev Lett. 1986 Aug 04;57(5):551-554. doi: 10.1103/PhysRevLett.57.551.

No abstract available.

Superdeformation and double blocking in 142Eu.

Physical review letters

Byrski T, Curien D, Fallon P, Forbes SA, He YJ, Metcalfe MS, Mullins SM, Nolan PJ, Paul ES, Poynter RJ, Regan PH, Wadsworth R, Wyss RA.
PMID: 10043279
Phys Rev Lett. 1991 Apr 01;66(13):1677-1680. doi: 10.1103/PhysRevLett.66.1677.

No abstract available.

Molecular Motor Dnm1 Synergistically Induces Membrane Curvature To Facilitate Mitochondrial Fission.

ACS central science

Lee MW, Lee EY, Lai GH, Kennedy NW, Posey AE, Xian W, Ferguson AL, Hill RB, Wong GCL.
PMID: 29202017
ACS Cent Sci. 2017 Nov 22;3(11):1156-1167. doi: 10.1021/acscentsci.7b00338. Epub 2017 Nov 08.

Dnm1 and Fis1 are prototypical proteins that regulate yeast mitochondrial morphology by controlling fission, the dysregulation of which can result in developmental disorders and neurodegenerative diseases in humans. Loss of Dnm1 blocks the formation of fission complexes and leads...

First Report of Rust Caused by Puccinia psidii on Paperbark, Melaleuca quinquenervia, in California.

Plant disease

Zambino PJ, Nolan PA.
PMID: 30731662
Plant Dis. 2011 Oct;95(10):1314. doi: 10.1094/PDIS-05-11-0436.

Infections by Puccinia psidii Winter were detected on Melaleuca quinquenervia (Cav.) Blake (paperbark, tea tree) during a regular inspection of a San Diego, California nursery in November 2010 by San Diego County inspectors. Urediniospore morphology, production of bright-yellow uredinia...

Electrochemical determination of free chlorine on pseudo-graphite electrode.

Talanta

Kabir H, Ma PY, Renn N, Nicholas NW, Cheng IF.
PMID: 31450477
Talanta. 2019 Dec 01;205:120101. doi: 10.1016/j.talanta.2019.06.101. Epub 2019 Jul 02.

Pseudo-graphite from the University of Idaho Thermolyzed Asphalt Reaction also known as GUITAR is a new form of carbon. It shares morphological features with graphites, including basal and edge planes. Unlike graphites and other sp

Prey choice by marten during a decline in prey abundance.

Oecologia

Thompson ID, Colgan PW.
PMID: 28313176
Oecologia. 1990 Jul;83(4):443-451. doi: 10.1007/BF00317193.

We examined variation in diet choice by marten (Martes americana) among seasons and between sexes and ages from 1980-1985. During this period prey populations crashed simultaneously, except for ruffed grouse (Bonasa umbellus) which was common at the beginning and...

First Report of Entyloma Polysporum on Sunflower (Helianthus annuus) in Southern California.

Plant disease

Dirac MF, Nolan P, Menge JA, Paulus AO.
PMID: 30845594
Plant Dis. 1999 Apr;83(4):396. doi: 10.1094/PDIS.1999.83.4.396A.

During a period of wet weather from December 1996 to March 1997, commercial plantings of sunflower in San Diego County, CA, were infected by a leaf smut, Entyloma polysporum (Peck) Farl. The fungus was observed on sunflowers grown in...

Showing 13 to 24 of 192 entries