3,163 research outputs found
Aspirin for the older person: report of a meeting at the Royal Society of Medicine, London, 3rd November 2011
On November 23rd 2011, the Aspirin Foundation held a meeting at the Royal Society of Medicine in London to review current thinking on the potential role of aspirin in preventing cardiovascular disease and reducing the risk of cancer in older people. The meeting was supported by Bayer Pharma AG and Novacyl
Efficacy of epidural blood patch with fibrin glue additive in refractory headache due to intracranial hypotension: preliminary report
Academic self-concept, gender and single-sex schooling
This paper assesses gender differences in academic self-concept for a cohort of children born in 1958 (the National Child Development Study). We address the question of whether attending single-sex or co-educational schools affected students’ perceptions of their own academic abilities (academic self-concept). Academic selfconcept was found to be highly gendered, even controlling for prior test scores. Boys had higher self-concepts in maths and science, and girls in English. Single-sex schooling reduced the gender gap in self-concept, while selective schooling was linked to lower academic self-concept overall
Observation of CP Violation in K(L)->pi+pi-e+e- Decays
We report the first observation of a manifestly CP violating effect in the
K(L)->pi+pi-e+e- decay mode. A large asymmetry was observed in the distribution
of these decays in the CP-odd and T-odd angle phi between the decay planes of
the e+e- and pi+pi- pairs in the K(L) center of mass system. After acceptance
corrections, the overall asymmetry is found to be 13.6+-2.5 (stat) +-1.2
(syst)%. This is the largest CP-violating effect yet observed integrating over
the entire phase space of a mode and the first such effect observed in an
angular variable.Comment: 4 pages 4 figures submitted to pr
AMI-LA Observations of the SuperCLASS Super-cluster
We present a deep survey of the SuperCLASS super-cluster - a region of sky
known to contain five Abell clusters at redshift - performed using
the Arcminute Microkelvin Imager (AMI) Large Array (LA) at 15.5GHz. Our
survey covers an area of approximately 0.9 square degrees. We achieve a nominal
sensitivity of Jy beam toward the field centre, finding 80
sources above a threshold. We derive the radio colour-colour
distribution for sources common to three surveys that cover the field and
identify three sources with strongly curved spectra - a high-frequency-peaked
source and two GHz-peaked-spectrum sources. The differential source count (i)
agrees well with previous deep radio source count, (ii) exhibits no evidence of
an emerging population of star-forming galaxies, down to a limit of 0.24mJy,
and (iii) disagrees with some models of the 15GHz source population.
However, our source count is in agreement with recent work that provides an
analytical correction to the source count from the SKADS Simulated Sky,
supporting the suggestion that this discrepancy is caused by an abundance of
flat-spectrum galaxy cores as-yet not included in source population models.Comment: 17 pages, 14 figures, 3 tables. Accepted for publication in MNRA
Neutrino Masses and Lepton-Flavor Violation in Supersymmetric Models with lopsided Froggatt-Nielsen charges
We analyze in detail lepton-flavor violation (LFV) in the charged-lepton
sector such as , , and the
conversion in nuclei, within the framework of supersymmetric models
with lopsided Froggatt--Nielsen charges, in which the large mixing in the
neutrino sector as well as small mixings in the quark sector can be naturally
accommodated. We show that the present experimental limits on the LFV processes
already exclude some of the models. The future proposed search for LFV,
especially in muon processes, can provide a significant probe to this
framework. We also stress the importance of the measurement of
in neutrino experiments, and the fact that the KamLAND experiment could play a
significant role to test a certain class of models.Comment: 33 pages, 20 figure
The Ursinus Weekly, April 28, 1941
Causes of cancer told to pre-meds by Pfahler • Manchester to sub for Wallace May 6 • Besse Howard will speak at forum Wednesday on topic, Spring, 1941 • Sub-frosh to view Ursinus this Saturday • May hop to feature music of Woody Leh • \u27Unity in diversity\u27 will be conference theme on May 7 • The Ursinus weekend travelogue around the circuit • Play \u27Lightnin\u27 centers around Calivada Hotel • Sixteen visit medical centers on excursion to New York • Five attend chemistry conference at Villanova • Powers of God are subject of vespers • Herber is pre-legal prexy • Meistersingers plan spring concert, May 1 • French Club to hear talk on prestige of French tongue • Debaters elect Lownes prexy; mixed team meets Drexel • Kriebel, Hartman to present reviews of Hilton and Brittain • Class of 1940 makes the grade in business and graduate work • IRC elects Byron president; discusses plans for next year • Local draft boards to weigh claims of students for deferment • Baseballers lose to Mules 3-2; trounce Dickinson 12-2 • Irvin paces track squad to victory over Delaware clan by 65-61 score • Netmen blank Lions in season opener • Co-ed net squad defeats Penn and Albright lassies • Zulick and Baberick win as Moravian beats golfers 3-2 • Freshman girls lead race in class softball league • Doc Baker heads old English game at Ursinus • Carter\u27s articles appear in historical dictionary • Hobos and bums to have poverty ball Saturday • Y officers to be inducted in service on Sundayhttps://digitalcommons.ursinus.edu/weekly/1816/thumbnail.jp
Don't Stop Thinking About Leptoquarks: Constructing New Models
We discuss the general framework for the construction of new models
containing a single, fermion number zero scalar leptoquark of mass GeV which can both satisfy the D0/CDF search constraints as well as
low energy data, and can lead to both neutral and charged current-like final
states at HERA. The class of models of this kind necessarily contain new
vector-like fermions with masses at the TeV scale which mix with those of the
Standard Model after symmetry breaking. In this paper we classify all models of
this type and examine their phenomenological implications as well as their
potential embedding into SUSY and non-SUSY GUT scenarios. The general coupling
parameter space allowed by low energy as well as collider data for these models
is described and requires no fine-tuning of the parameters.Comment: Modified text, added table, and updated reference
Sun exposure and melanoma risk at different latitudes: a pooled analysis of 5700 cases and 7216 controls
Background Melanoma risk is related to sun exposure; we have investigated risk variation by tumour site and latitude
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