5,428 research outputs found
Parton Distribution Function sensitivity studies using electroweak processes at LHCb
We describe parton density function sensitivity studies, using muon final
states produced through the Drell-Yan process via W, Z or down to a
Q^2 of 10 GeV^2. This makes use of LHCb's unique ability to trigger on low
transverse momentum objects. Due to the forward acceptance of LHCb, x values
down to 2 10^{-6} can be probed, where with just 100 pb-1 of data, the gluon
PDF can improved up to 70%
Made-to-measure galaxy models - II Elliptical and Lenticular Galaxies
We take a sample of 24 elliptical and lenticular galaxies previously analysed
by the SAURON project using three-integral dynamical models created with
Schwarzschild's method, and re-analyse them using the made-to-measure (M2M)
method of dynamical modelling. We obtain good agreement between the two methods
in determining the dynamical mass-to-light (M/L) ratios for the galaxies with
over 80% of ratios differing by < 10% and over 95% differing by < 20%. We show
that (M/L)_M2M is approximately equal to (M/L)_Sch. For the global velocity
dispersion anisotropy parameter delta, we find similar values but with fewer of
the made-to-measure models tangentially anisotropic by comparison with their
SAURON Schwarzschild counterparts. Our investigation is the largest comparative
application of the made-to-measure method to date.Comment: 14 pages, 8 figures and 5 table
Personalised comfort systems: a novel approach based on localized two-phase water circulation
openThe approach to personal cooling based on liquid circulation has shown promise in literature, but iterations have been limited and often not based on the existing data on local comfort.
This work aims to test out the feasibility of using a mixture of ice and water which is circulated in a garment designed to improve the comfort of localized cooling.The approach to personal cooling based on liquid circulation has shown promise in literature, but iterations have been limited and often not based on the existing data on local comfort.
This work aims to test out the feasibility of using a mixture of ice and water which is circulated in a garment designed to improve the comfort of localized cooling
Oncoplastic Breast Surgery
:  Oncoplastic surgery is an establish approach that combines conserving treatment for breast cancer and plastic surgery techniques. It allows wide excisions and prevents breast deformities by immediate reconstruction of large resection defects. The procedures are mostly useful for resection of 20–40% of the breast – a group of patients normally treated by mastectomy in the past. Four features are integral to oncoplastic breast surgery: (i) Appropriate surgery for cancer excision. (ii) Partial reconstruction to correct wide excision defects. (iii) Immediate reconstruction with the full range of available techniques. (iv) Correction of volume and shape asymmetries relative to the contra-lateral healthy breast. There are two fundamentally different approaches: (i) volume-replacement procedures, which combine resection with immediate reconstruction by using local flaps (glandular, fasciocutaneous, and latissimus dorsi mini-flaps), and (ii) volume-displacement procedures, which combine resection with a variety of different breast reduction and reshaping techniques, according to the location of the tumor. Oncoplastic surgery increases the oncological safety of breast-conserving treatment because a much larger breast volume can be excised and wider surgical margins can be achieved. Moreover, a "surgical screening" of the contra-lateral breast allows the diagnosis of occult cancers. Among oncoplastic approaches, a very unique technique is the possibility of implant use (augmentation mammaplasty) in case of quadrantectomy and simultaneous delivery of intraoperative radiotherapy to the tumor bed
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