Search results for "dron"
showing 10 items of 4363 documents
Measurement of dielectron production in central Pb-Pb collisions at √sNN = 2.76 TeV
2019
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. The first measurement of dielectron (e + e −) production in central (0 – 10 %) Pb – Pb collisions at √sNN=2.76TeV at the LHC is presented. The dielectron invariant-mass spectrum is compared to the expected contributions from hadron decays in the invariant-mass range 0 < mee < 3.5 GeV / c2. The ratio of data and the cocktail of hadronic contributions without vacuum ρ0 is measured in the invariant-mass range 0.15 < mee < 0.7 GeV / c2, w…
The ALICE experiment at the CERN LHC
2008
Journal of Instrumentation 3(08), S08002 (2008). doi:10.1088/1748-0221/3/08/S08002
Few-body insights of multiquark exotic hadrons
2018
In this contribution we discuss the adequate treatment of the $4-$ and $5-$body dynamics within a constituent quark framework. We stress that the variational and Born-Oppenheimer approximations give energies rather close to the exact ones, while the diquark approximation might be rather misleading. Hall-Post inequalities provide very useful lower bounds that exclude possible stable states for some mass ratios and color wave functions.
The Large Observatory For x-ray Timing
2014
The Large Observatory For x-ray Timing (LOFT) was studied within ESA M3 Cosmic Vision framework and participated in the final down-selection for a launch slot in 2022-2024. Thanks to the unprecedented combination of effective area and spectral resolution of its main instrument, LOFT will study the behaviour of matter under extreme conditions, such as the strong gravitational field in the innermost regions of accretion flows close to black holes and neutron stars, and the supra-nuclear densities in the interior of neutron stars. The science payload is based on a Large Area Detector (LAD, 10 m 2 effective area, 2-30 keV, 240 eV spectral resolution, 1 deg collimated field of view) and a WideFi…
K∗(892)0 and φ(1020) production in p-Pb collisions at √sNN = 8.16 TeV
2023
The production of K∗(892)0 and ϕ(1020)resonances has been measured in p-Pb collisions at √sNN = 8.16 TeV using the ALICE detector. Resonances are reconstructed via their hadronic decay channels in the rapidity interval −0.5 8 GeV/c), the RpPb values of all hadrons are consistent with unity within uncertainties. The RpPb of K∗(892)0and ϕ(1020)at √sNN = 8.16 and 5.02 TeV show no significant energy dependence. peerReviewed
Observation of flow angle and flow magnitude fluctuations in Pb-Pb collisions at √sNN = 5.02 TeV at the CERN Large Hadron Collider
2023
This Letter reports on the first measurements of transverse momentum dependent flow angle Ψn and flow magnitude vn fluctuations determined using new four-particle correlators. The measurements are performed for various centralities in Pb–Pb collisions at a center-of-mass energy per nucleon pair of √SNN = 5.02 TeV with ALICE at the CERN Large Hadron Collider. Both flow angle and flow magnitude fluctuations are observed in the presented centrality ranges and are strongest in the most central collisions and for a transverse momentum pT>2GeV/c. Comparison with theoretical models, including iEBE-VISHNU, MUSIC, and AMPT, show that the measurements exhibit unique sensitivities to the initial state…
Effects of Zoledronic Acid on Cathepsin K circulating levels in patients with bone metastasis.
2007
Cathepsin K serum levels were determinated in patients with bone metastases from breast cancer or prostate cancer in therapy with zoledronic acid or in patients or in patients with located breast or prostate cancer end in patients with non malignant diseases and in healthy blood. donors (control group). Cathepsin K serum levels were significantly more eleved in healthy subjects or in patients with peimary osteoporosis. Furthermore, the administration of Zoledronic acid to patients with metastatic bome disease from breast or prostate cancer, induced a marked increase of Cathepsin K serum levels.
Analysis of molecular mechanisms and anti-tumoral effects of zoledronic acid in breast cancer cells
2012
Background: Zoledronic acid (ZOL) is the most potent nitrogen-containing bisphosphonate (N-BPs) that strongly binds to bone mineral and acts as a powerful inhibitor of bone resorption, already clinically available for the treatment of patients with osteolytic metastases. Recent data also suggest that ZOL, used in breast cancer, may provide more than just supportive care modifying the course of the disease, though the possible molecular mechanism of action is still unclear. Aims: Since breast cancer is one of the primary tumors with high propensity to metastasize to the bone, we investigated, for the first time, differential gene expression profile on MCF-7 breast cancer cells treated with l…
Osteonecrosis of the jaw as an adverse bisphosphonate event: Three cases of bone metastatic prostate cancer patients treated with zoledronic acid
2007
Bisphosphonates offer a significant improvement in the quality of life for cancer patients; these potent inhibitors of bone resorption have been shown to markedly reduce the morbidity frequently resulting from bone metastases. Despite the success of bisphosphonates as therapeutic agents, however, toxicity in the form of osteonecrosis of the jaw (ONJ) is a rare complication whose incidence rate has climbed in recent years. ONJ is defined as an unexpected development of necrotic bone in the oral cavity, and is commonly associated with administration of the bisphosphonates Pamidronate and Zoledronate. Clinical features include local pain, soft-tissue swelling, and/or loose teeth; ONJ is also o…
Dronu izmantošana kultūrvēsturisko pieminekļu dokumentēšanā: Āraišu piļu piemērs
2020
Bakalaura darbā “Dronu izmantošana kultūrvēsturisko pieminekļu dokumentēšanā: Āraišu piļu piemērs” tika apskatīta bezpilota gaisa kuģu visbiežāk sastopamā modeļa - drona, izmantošana fotogrammetrijas vajadzībām. Dotajā gadījumā – izmantojot bezpilota gaisa kuģa iegūtos datus, tiek veidoti trīs 3D modeļi kultūrvēsturiskajiem objektiem – divi Āraišu ezerpilij un viens Āraišu ordeņa pilsdrupām. Šo objektu dokumentēšanas mērķis ir fiksēt to stāvokli un telpisko izvietojumu. Bakalaura darba pētījuma mērķis ir noskaidrot dronu pielietošanas iespējas - priekšrocības un trūkumus - 3D modeļu izveidošanai nepieciešamo datu ieguves procesā un potenciālās problēmas, ar kurām iespējams saskarties, apstr…