38 research outputs found
ExoMol line lists XXVIII: The rovibronic spectrum of AlH
A new line list for AlH is produced. The WYLLoT line list spans two
electronic states and . A diabatic model is used
to model the shallow potential energy curve of the state, which
has a strong pre-dissociative character with only two bound vibrational states.
Both potential energy curves are empirical and were obtained by fitting to
experimentally derived energies of the and
electronic states using the diatomic nuclear motion codes Level and Duo. High
temperature line lists plus partition functions and lifetimes for three
isotopologues AlH, AlD and AlH were generated using ab
initio dipole moments. The line lists cover both the -- and --
systems and are made available in electronic form at the CDS and ExoMol
databases
Enabling lightweight, high load aero-bearings
Environmental and commercial considerations are strongly driving research into weight saving in
aircraft. In this research, innovative manufacturing processes were developed to produce
lightweight titanium alloy bearings capable of withstanding high bearing pressures. This will
enable the replacement of heavier conventional bearing materials with titanium alloy bearings of
the same size thereby saving weight. Plasma processing and PVD coating techniques were
refined and combined and a sound scientific understanding of the resulting novel processes
developed to assure high performance, reliability and repeatability. These techniques were
applied to test discs and small bearing (bush) samples, which were tested under progressively
greater loads (pressures). FEA was also used to evaluate pressure distribution in a bush test
assembly. The novel treatment has potential applications for many bearings and bearing surfaces
throughout aircraft.peer-reviewe
Physical activity and osteoarthritis:A consensus study to harmonise self-reporting methods of physical activity across international cohorts
Physical activity (PA) is increasingly recognised as an important factor within studies of osteoarthritis (OA). However, subjective methods used to assess PA are highly variable and have not been developed for use within studies of OA, which creates difficulties when comparing and interpreting PA data in OA research. The aim of this study was, therefore, to gain expert agreement on the appropriate methods to harmonise PA data among existing population cohorts to enable the investigation of the association of PA and OA. The definition of PA in an OA context and methods of harmonization were established via an international expert consensus meeting and modified Delphi exercise using a geographically diverse committee selected on the basis of individual expertise in physical activity, exercise medicine, and OA. Agreement was met for all aims of study: (1) The use of Metabolic Equivalent of Task (MET) minutes per week (MET-min/week) as a method for harmonising PA variables among cohorts; (2) The determination of methods for treating missing components of MET-min/week calculation; a value will be produced from comparable activities within a representative cohort; (3) Exclusion of the domain of occupation from total MET-min/week; (4) The need for a specific measure of joint loading of an activity in addition to intensity and time, in studies of diseases, such as OA. This study has developed a systematic method to classify and harmonise PA in existing OA cohorts. It also provides minimum requirements for future studies intending to include subjective PA measures
Novel Associations between Common Breast Cancer Susceptibility Variants and Risk-Predicting Mammographic Density Measures.
Mammographic density measures adjusted for age and body mass index (BMI) are heritable predictors of breast cancer risk, but few mammographic density-associated genetic variants have been identified. Using data for 10,727 women from two international consortia, we estimated associations between 77 common breast cancer susceptibility variants and absolute dense area, percent dense area and absolute nondense area adjusted for study, age, and BMI using mixed linear modeling. We found strong support for established associations between rs10995190 (in the region of ZNF365), rs2046210 (ESR1), and rs3817198 (LSP1) and adjusted absolute and percent dense areas (all P < 10(-5)). Of 41 recently discovered breast cancer susceptibility variants, associations were found between rs1432679 (EBF1), rs17817449 (MIR1972-2: FTO), rs12710696 (2p24.1), and rs3757318 (ESR1) and adjusted absolute and percent dense areas, respectively. There were associations between rs6001930 (MKL1) and both adjusted absolute dense and nondense areas, and between rs17356907 (NTN4) and adjusted absolute nondense area. Trends in all but two associations were consistent with those for breast cancer risk. Results suggested that 18% of breast cancer susceptibility variants were associated with at least one mammographic density measure. Genetic variants at multiple loci were associated with both breast cancer risk and the mammographic density measures. Further understanding of the underlying mechanisms at these loci could help identify etiologic pathways implicated in how mammographic density predicts breast cancer risk.ABCFS: The Australian Breast Cancer Family Registry (ABCFR; 1992-1995) was supported by
the Australian NHMRC, the New South Wales Cancer Council, and the Victorian Health
Promotion Foundation (Australia), and by grant UM1CA164920 from the USA National
Cancer Institute. The Genetic Epidemiology Laboratory at the University of Melbourne has
also received generous support from Mr B. Hovey and Dr and Mrs R.W. Brown to whom we
are most grateful. The content of this manuscript does not necessarily reflect the views or
policies of the National Cancer Institute or any of the collaborating centers in the Breast
Breast Cancer Susceptibility Variants and Mammographic Density
5
Cancer Family Registry (BCFR), nor does mention of trade names, commercial products, or
organizations imply endorsement by the USA Government or the BCFR.
BBCC: This study was funded in part by the ELAN-Program of the University Hospital
Erlangen; Katharina Heusinger was funded by the ELAN program of the University Hospital
Erlangen. BBCC was supported in part by the ELAN program of the Medical Faculty,
University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nuremberg.
EPIC-Norfolk: This study was funded by research programme grant funding from Cancer
Research UK and the Medical Research Council with additional support from the Stroke
Association, British Heart Foundation, Department of Health, Research into Ageing and
Academy of Medical Sciences.
MCBCS: This study was supported by Public Health Service Grants P50 CA 116201, R01 CA
128931, R01 CA 128931-S01, R01 CA 122340, CCSG P30 CA15083, from the National Cancer
Institute, National Institutes of Health, and Department of Health and Human Services.
MCCS: Melissa C. Southey is a National Health and Medical Research Council Senior
Research Fellow and a Victorian Breast Cancer Research Consortium Group Leader. The
study was supported by the Cancer Council of Victoria and by the Victorian Breast Cancer
Research Consortium.
MEC: National Cancer Institute: R37CA054281, R01CA063464, R01CA085265, R25CA090956,
R01CA132839.
MMHS: This work was supported by grants from the National Cancer Institute, National
Institutes of Health, and Department of Health and Human Services. (R01 CA128931, R01 CA
128931-S01, R01 CA97396, P50 CA116201, and Cancer Center Support Grant P30 CA15083).
Breast Cancer Susceptibility Variants and Mammographic Density
6
NBCS: This study has been supported with grants from Norwegian Research Council
(#183621/S10 and #175240/S10), The Norwegian Cancer Society (PK80108002,
PK60287003), and The Radium Hospital Foundation as well as S-02036 from South Eastern
Norway Regional Health Authority.
NHS: This study was supported by Public Health Service Grants CA131332, CA087969,
CA089393, CA049449, CA98233, CA128931, CA 116201, CA 122340 from the National
Cancer Institute, National Institutes of Health, Department of Health and Human Services.
OOA study was supported by CA122822 and X01 HG005954 from the NIH; Breast Cancer
Research Fund; Elizabeth C. Crosby Research Award, Gladys E. Davis Endowed Fund, and the
Office of the Vice President for Research at the University of Michigan. Genotyping services
for the OOA study were provided by the Center for Inherited Disease Research (CIDR), which
is fully funded through a federal contract from the National Institutes of Health to The Johns
Hopkins University, contract number HHSN268200782096.
OFBCR: This work was supported by grant UM1 CA164920 from the USA National Cancer
Institute. The content of this manuscript does not necessarily reflect the views or policies of
the National Cancer Institute or any of the collaborating centers in the Breast Cancer Family
Registry (BCFR), nor does mention of trade names, commercial products, or organizations
imply endorsement by the USA Government or the BCFR.
SASBAC: The SASBAC study was supported by Märit and Hans Rausing’s Initiative against
Breast Cancer, National Institutes of Health, Susan Komen Foundation and Agency for
Science, Technology and Research of Singapore (A*STAR).
Breast Cancer Susceptibility Variants and Mammographic Density
7
SIBS: SIBS was supported by program grant C1287/A10118 and project grants from Cancer
Research UK (grant numbers C1287/8459).
COGS grant: Collaborative Oncological Gene-environment Study (COGS) that enabled the
genotyping for this study. Funding for the BCAC component is provided by grants from the
EU FP7 programme (COGS) and from Cancer Research UK. Funding for the iCOGS
infrastructure came from: the European Community's Seventh Framework Programme
under grant agreement n° 223175 (HEALTH-F2-2009-223175) (COGS), Cancer Research UK
(C1287/A10118, C1287/A 10710, C12292/A11174, C1281/A12014, C5047/A8384,
C5047/A15007, C5047/A10692), the National Institutes of Health (CA128978) and Post-
Cancer GWAS initiative (1U19 CA148537, 1U19 CA148065 and 1U19 CA148112 - the GAMEON
initiative), the Department of Defence (W81XWH-10-1-0341), the Canadian Institutes of
Health Research (CIHR) for the CIHR Team in Familial Risks of Breast Cancer, Komen
Foundation for the Cure, the Breast Cancer Research Foundation, and the Ovarian Cancer
Research Fund.This is the author accepted manuscript. The final version is available via American Association for Cancer Research at http://cancerres.aacrjournals.org/content/early/2015/04/10/0008-5472.CAN-14-2012.abstract
The Magic Words Are Squeamish Ossifrage (Extended Abstract)
We describe the computation which resulted in the title of this paper. Furthermore, we give an analysis of the data collected during this computation. From these data, we derive the important observation that in the final stages, the progress of the double large prime variation of the quadratic sieve integer factoring algorithm can more effectively be approximated by a quartic function of the time spent, than by the more familiar quadratic function. We also present, as an update to [15], some of our experiences with the management of a large computation distributed over the Internet. Based on this experience, we give some realistic estimates of the current readily available computational power of the Internet. We conclude that commonly-used 512-bit RSA moduli are vulnerable to any organization prepared to spend a few million dollars and to wait a few months
Developing Safety Criteria for Introducing New Agents into Neoadjuvant Trials
New approaches to drug development are critically needed to lessen the time, cost, and resources necessary to identify and optimize active agents. Strategies to accelerate drug development include testing drugs earlier in the disease process, such as the neoadjuvant setting. The U.S. Food and Drug Administration (FDA) has issued guidance designed to accelerate drug approval through the use of neoadjuvant studies in which the surrogate short-term endpoint, pathologic response, can be used to identify active agents and shorten the time to approval of both efficacious drugs and biomarkers identifying patients most likely to respond. However, this approach has unique challenges. In particular, issues of patient safety are paramount, given the exposure of potentially curable patients to investigational agents with limited safety experience. Key components to safe drug development in the neoadjuvant setting include defining a study population at sufficiently poor prognosis with standard therapy to justify exposure to investigational agents, defining the extent and adequacy of safety data from phase I, detecting potentially harmful interactions between investigational and standard therapies, improving study designs, such as adaptive strategies, that limit patient exposure to ineffective agents, and intensifying safety monitoring in the course of the trial. The I-SPY2 trial is an example of a phase II neoadjuvant trial of novel agents for breast cancer in which these issues have been addressed, both in the design and conduct of the trial. These adaptations of phase II design enable acceleration of drug development by reducing time and cost to screen novel therapies for activity without compromising safety