9,677 research outputs found
The motivation and status of two-body resonance decays after the LHC Run 2 and beyond
Searching for two-body resonance decays is a central component of the high
energy physics energy frontier research program. While many of the
possibilities are covered when the two bodies are Standard Model (SM)
particles, there are still significant gaps. If one or both of the bodies are
themselves non-SM particles, there is very little coverage from existing
searches. We review the status of two-body searches and motivate the need to
search for the missing combinations. It is likely that the search program of
the future will be able to cover all possibilities with a combination of
dedicated and model agnostic search approaches.Comment: 17 pages, 1 figure, 14 table
A Bayesian Approach to Discovering Truth from Conflicting Sources for Data Integration
In practical data integration systems, it is common for the data sources
being integrated to provide conflicting information about the same entity.
Consequently, a major challenge for data integration is to derive the most
complete and accurate integrated records from diverse and sometimes conflicting
sources. We term this challenge the truth finding problem. We observe that some
sources are generally more reliable than others, and therefore a good model of
source quality is the key to solving the truth finding problem. In this work,
we propose a probabilistic graphical model that can automatically infer true
records and source quality without any supervision. In contrast to previous
methods, our principled approach leverages a generative process of two types of
errors (false positive and false negative) by modeling two different aspects of
source quality. In so doing, ours is also the first approach designed to merge
multi-valued attribute types. Our method is scalable, due to an efficient
sampling-based inference algorithm that needs very few iterations in practice
and enjoys linear time complexity, with an even faster incremental variant.
Experiments on two real world datasets show that our new method outperforms
existing state-of-the-art approaches to the truth finding problem.Comment: VLDB201
We’re Right Next Door: Televisual Las Vegas in Cold War America
Han, currently a graduate student in cinema studies at New York University, is looking at how television performances helped to shape perceptions of Las Vegas. Since World War II, Las Vegas has evolved into an entertainment capital of the world. While we often associate Las Vegas with gambling and casinos, many foreign ethnic talents arrived in the city to perform in hotels and nightclubs. These talented performers were instrumental in the development of televisual Las Vegas. This talk explores the migration of ethnic talent, and how such prominent Las Vegas entertainment business figures like Jack Entratter and Bill Willard envisioned transforming the city into a primary center of television production from the 1950s to 1970s
Translational aspects of cardiac cell therapy.
Cell therapy has been intensely studied for over a decade as a potential treatment for ischaemic heart disease. While initial trials using skeletal myoblasts, bone marrow cells and peripheral blood stem cells showed promise in improving cardiac function, benefits were found to be short-lived likely related to limited survival and engraftment of the delivered cells. The discovery of putative cardiac 'progenitor' cells as well as the creation of induced pluripotent stem cells has led to the delivery of cells potentially capable of electromechanical integration into existing tissue. An alternative strategy involving either direct reprogramming of endogenous cardiac fibroblasts or stimulation of resident cardiomyocytes to regenerate new myocytes can potentially overcome the limitations of exogenous cell delivery. Complimentary approaches utilizing combination cell therapy and bioengineering techniques may be necessary to provide the proper milieu for clinically significant regeneration. Clinical trials employing bone marrow cells, mesenchymal stem cells and cardiac progenitor cells have demonstrated safety of catheter based cell delivery, with suggestion of limited improvement in ventricular function and reduction in infarct size. Ongoing trials are investigating potential benefits to outcome such as morbidity and mortality. These and future trials will clarify the optimal cell types and delivery conditions for therapeutic effect
A unified approach to realize universal quantum gates in a coupled two-qubit system with fixed always-on coupling
We demonstrate that in a coupled two-qubit system any single-qubit gate can
be decomposed into two conditional two-qubit gates and that any conditional
two-qubit gate can be implemented by a manipulation analogous to that used for
a controlled two-qubit gate. Based on this we present a unified approach to
implement universal single-qubit and two-qubit gates in a coupled two-qubit
system with fixed always-on coupling. This approach requires neither
supplementary circuit or additional physical qubits to control the coupling nor
extra hardware to adjust the energy level structure. The feasibility of this
approach is demonstrated by numerical simulation of single-qubit gates and
creation of two-qubit Bell states in rf-driven inductively coupled two SQUID
flux qubits with realistic device parameters and constant always-on coupling.Comment: 4 pages, 3 figure
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