Página 1 dos resultados de 367 itens digitais encontrados em 0.007 segundos

## Contributo para a acreditação nos serviços de imagiologia em Portugal

Gomes, Romana
Fonte: Escola Nacional de Saúde Pública. Universidade Nova de Lisboa Publicador: Escola Nacional de Saúde Pública. Universidade Nova de Lisboa
Tipo: Dissertação de Mestrado
Publicado em //2010 POR
Relevância na Pesquisa
26.35%

## Developing Quality and Performance Criteria for a Clinical Document Imaging Project

Yackel, Thomas R.
Fonte: PubMed Publicador: PubMed
Tipo: Artigo de Revista Científica
Publicado em //2002 EN
Relevância na Pesquisa
46.21%
Despite the rapid pace of implementation of clinical document imaging technology, little is known about the effects such systems have on the institutions that use them. In order to facilitate evaluations of clinical document imaging systems, a qualitative approach was taken to define potential quality and performance measures. These measures were then categorized and rated. The performance and quality indicators identified in this study provide a basis for further research that will validate these indicators and provide a framework for evaluating the impact of clinical document imaging on health systems.

## The optimal optical readout for the x-ray light valve—Document scanners

Oakham, P.; MacDougall, Robert D.; Rowlands, J. A.
Fonte: American Association of Physicists in Medicine Publicador: American Association of Physicists in Medicine
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
36.11%
The x-ray light valve (XLV) is a novel, potentially low-cost, x-ray detector that converts an x-ray exposure into an optical image stored in a liquid crystal cell. This optical image is then transferred from the liquid crystal cell to a computer through an optical-to-digital imaging readout system. Previously, CCD-based cameras were used for the optical readout, but recently it was proposed that an inexpensive optical scanner, such as an office document scanner, is a better match to the optical properties of the XLV. A methodology for characterizing a document scanner’s ability to produce medical quality images from the XLV is outlined and tested on a particular scanner (Canon LiDE 30). This scanner was shown to have key characteristics of a medical device—a linear response, dynamic range sufficient for chest radiography (although not mammography) in a single pass, and an MTF and NPS that exceed the requirements for all medical applications of the scanner. This combination of criteria shows that a document scanner can be used as a digitization method for the XLV.

## Imaging of a retained laparotomy towel that migrated into the colon lumen

Ozyer, Umut; Boyvat, Fatih
Fonte: Medknow Publications Publicador: Medknow Publications
Tipo: Artigo de Revista Científica
Publicado em /08/2009 EN
Relevância na Pesquisa
35.83%
Retention of surgical instruments, most commonly small laparotomy sponges, is a known complication of surgery. Such retained instruments may remain silent or may cause a variety of complications. We report a case in which a retained laparotomy towel migrated into the colon. This is an infrequently reported complication. We were able to document the passage of the towel through the colon on plain radiographs. The USG and MRI findings are also described.

## Joint dynamic imaging of morphogenesis and function in the developing heart

Ohn, Jungho; Tsai, Huai-Jen; Liebling, Michael
Fonte: Landes Bioscience Publicador: Landes Bioscience
Tipo: Artigo de Revista Científica
Publicado em //2009 EN
Relevância na Pesquisa
35.97%
In the developing heart, time-lapse imaging is particularly challenging. Changes in heart morphology due to tissue growth or long-term reorganization are difficult to follow because they are much subtler than the rapid shape changes induced by the heartbeat. Therefore, imaging heart development usually requires slowing or stopping the heart. This, however, leads to information loss about the unperturbed heart shape and the dynamics of heart function. To overcome this limitation, we have developed a non-invasive heart imaging technique to jointly document heart function (at fixed stages of development) as well as its morphogenesis (at any fixed phase in the heartbeat) that does not require stopping or slowing the heart. We review the challenges for imaging heart development and our methodology, which is based on computationally combining and analyzing multiple high-speed image sequences acquired throughout the course of development. We present results obtained in the developing zebrafish heart. Image analysis of the acquired data yielded blood flow velocity maps and made it possible to follow the relative movement of individual cells over several hours.

## Multispectral imaging of tissue absorption and scattering using spatial frequency domain imaging and a computed-tomography imaging spectrometer

Weber, Jessie R.; Cuccia, David J.; Johnson, William R.; Bearman, Gregory H.; Durkin, Anthony J.; Hsu, Mike; Lin, Alexander; Binder, Devin K.; Wilson, Dan; Tromberg, Bruce J.
Fonte: Society of Photo-Optical Instrumentation Engineers (SPIE) Publicador: Society of Photo-Optical Instrumentation Engineers (SPIE)
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
26.14%
We present an approach for rapidly and quantitatively mapping tissue absorption and scattering spectra in a wide-field, noncontact imaging geometry by combining multifrequency spatial frequency domain imaging (SFDI) with a computed-tomography imaging spectrometer (CTIS). SFDI overcomes the need to spatially scan a source, and is based on the projection and analysis of periodic structured illumination patterns. CTIS provides a throughput advantage by simultaneously diffracting multiple spectral images onto a single CCD chip to gather spectra at every pixel of the image, thus providing spatial and spectral information in a single snapshot. The spatial-spectral data set was acquired 30 times faster than with our wavelength-scanning liquid crystal tunable filter camera, even though it is not yet optimized for speed. Here we demonstrate that the combined SFDI-CTIS is capable of rapid, multispectral imaging of tissue absorption and scattering in a noncontact, nonscanning platform. The combined system was validated for 36 wavelengths between 650–1000 nm in tissue simulating phantoms over a range of tissue-like absorption and scattering properties. The average percent error for the range of absorption coefficients (μa) was less than 10% from 650–800 nm...

## Measurement of pion, kaon and proton production in proton–proton collisions at documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$sqrt{s} = 7$$end{document}s=7 TeV

Adam, J.; Adamová, D.; Aggarwal, M. M.; Rinella, G. Aglieri; Agnello, M.; Agrawal, N.; Ahammed, Z.; Ahmed, I.; Ahn, S. U.; Aimo, I.; Aiola, S.; Ajaz, M.; Akindinov, A.; Alam, S. N.; Aleksandrov, D.; Alessandro, B.; Alexandre, D.; Molina, R. Alfaro; Alici
Fonte: Springer Berlin Heidelberg Publicador: Springer Berlin Heidelberg
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
26.16%
The measurement of primary documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$pi ^{pm }$$end{document}π±, documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$K^{pm }$$end{document}K±, documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$p$$end{document}p and documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$${overline{{p}}}$$end{document}p¯ production at mid-rapidity (documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$|y| <$$end{document}|y|< 0.5) in proton–proton collisions at documentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$sqrt{s}$$end{document}sdocumentclass[12pt]{minimal} usepackage{amsmath} usepackage{wasysym} usepackage{amsfonts} usepackage{amssymb} usepackage{amsbsy} usepackage{mathrsfs} usepackage{upgreek} setlength{oddsidemargin}{-69pt} egin{document}$$=$$end{document}= 7 TeV performed with a large ion collider experiment at the large hadron collider (LHC) is reported. Particle identification is performed using the specific ionisation energy-loss and time-of-flight information...

## Relatório médico em imagiologia: estudo de práticas de criação e uso

Felgueiras, Nídia Maria Lopes
Fonte: Instituto Politécnico do Porto. Escola Superior de Estudos Industriais e de Gestão Publicador: Instituto Politécnico do Porto. Escola Superior de Estudos Industriais e de Gestão
Tipo: Dissertação de Mestrado
Publicado em //2015 POR
Relevância na Pesquisa
26.19%
Dissertação de Mestrado em Informação Empresarial; Considerando como objeto de estudo o Relatório Médico em imagiologia, esta investigação encontra-se situada entre duas áreas do saber, a Ciência de Informação e as Ciências da Saúde (mais designadamente no âmbito da imagiologia). O Relatório Médico em imagiologia é um documento textual, físico e/ou digital, sigiloso, com caráter legal, que compreende informação médica relativa a um (ou vários) exame(s) médico(s) de um utente e que têm como principal objetivo fornecer dados/indicadores para o diagnóstico médico especializado. Com esta investigação, pretende-se posicionar o objeto de estudo, documentar a sua génese intelectual e material, refletir sobre todo o fluxo informacional do documento, revelar a importância das suas fases de produção e de normalização. Foram realizados levantamentos bibliográficos e abordagens reflexivas sobre a importância e produção do relatório médico, que depois foram cruzados com estudos de caso baseado em diferentes instituições, onde a experiência profissional do médico (produtor intelectual) e datilógrafo (produtor material) nos elucida sobre a temática apresentada e nos permitiu entender práticas e fluxos informacionais. No final do estudo analisamos o papel do datilógrafo como produtor material do relatório médico...

## Molecular Brightness Determined from a Generalized Form of Mandel's Q-Parameter

Sanchez-Andres, Alvaro; Chen, Yan; Müller, Joachim D.
Fonte: Biophysical Society Publicador: Biophysical Society
Tipo: Artigo de Revista Científica
EN
Relevância na Pesquisa
26.14%
Mandel's Q-parameter, which is determined from the first two photon count moments, provides an alternative to PCH analysis for determining the brightness of fluorophores. Here, the definition of the Q-parameter is generalized to include correlations between photon counts that are separated by a time τ. We develop and experimentally verify a theory that takes the effects of dead time, afterpulsing, and the finite sampling time on the generalized parameter \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \setlength{\oddsidemargin}{-69pt} \begin{document} \begin{equation*}Q({\tau})\end{equation*}\end{document} into account. \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \setlength{\oddsidemargin}{-69pt} \begin{document} \begin{equation*}Q(0),\end{equation*}\end{document} which corresponds to the original Q-parameter, is severely affected by dead time and afterpulsing. \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \setlength{\oddsidemargin}{-69pt} \begin{document} \begin{equation*}Q({\tau})\end{equation*}\end{document} for \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \setlength{\oddsidemargin}{-69pt} \begin{document} \begin{equation*}{\tau}>0...

## Development of a process to disclose amyloid imaging results to cognitively normal older adult research participants

Harkins, Kristin; Sankar, Pamela; Sperling, Reisa; Grill, Joshua D; Green, Robert C; Johnson, Keith A; Healy, Megan; Karlawish, Jason
Fonte: BioMed Central Publicador: BioMed Central
Tipo: Artigo de Revista Científica
EN_US
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26.17%
Introduction: The objective of this study was to develop a process to maximize the safety and effectiveness of disclosing Positron Emission Tomography (PET) amyloid imaging results to cognitively normal older adults participating in Alzheimer’s disease secondary prevention studies such as the Anti-Amyloid Treatment in Asymptomatic Alzheimer’s Disease (A4) Study. Methods: Using a modified Delphi Method to develop consensus on best practices, we gathered and analyzed data over three rounds from experts in two relevant fields: informed consent for genetic testing or human amyloid imaging. Results: Experts reached consensus on (1) text for a brochure that describes amyloid imaging to a person who is considering whether to undergo such imaging in the context of a clinical trial, and (2) a process for amyloid PET result disclosure within such trials. Recommendations included: During consent, potential participants should complete an educational session, where they receive verbal and written information covering what is known and unknown about amyloid imaging, including possible results and their meaning, implications of results for risk of future cognitive decline, and information about Alzheimer’s and risk factors. Participants should be screened for anxiety and depression to determine suitability to receive amyloid imaging information. The person conducting the sessions should check comprehension and be skilled in communication and recognizing distress. Imaging should occur on a separate day from consent...

## Euclid Imaging Consortium Science Book

Refregier, A.; Amara, A.; Kitching, T. D.; Rassat, A.; Scaramella, R.; Weller, J.; Consortium, for the Euclid Imaging
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
36%
The energy density of the Universe is dominated by dark energy and dark matter, two mysterious components which pose some of the most important questions in fundamental science today. Euclid is a high-precision survey mission designed to answer these questions by mapping the geometry of the dark Universe. Euclid's Visible-NIR imaging and spectroscopy of the entire extragalactic sky will further produce extensive legacy science for various fields of astronomy. Over the 2008-2009 period, Euclid has been the object of an ESA Assessment Phase in which the study of the Euclid Imaging instrument was under the responsibility of the Euclid Imaging Consortium (EIC). The EIC Science Book presents the studies done by the EIC science working groups in the context of this study phase. We first give a brief description of the Euclid mission and of the imaging instrument and surveys. We then summarise the primary and legacy science which will be achieved with the Euclid imaging surveys, along with the simulations and data handling scheme which have been developed to optimise the instrument and ensure its science performance.; Comment: 214 Latex pages, including full list of authors on page 3. Full resolution document available at http://www.euclid-imaging.net

## Quantum Imaging Technologies

Malik, Mehul; Boyd, Robert W.
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
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Over the past three decades, quantum mechanics has allowed the development of technologies that provide unconditionally secure communication. In parallel, the quantum nature of the transverse electromagnetic field has spawned the field of quantum imaging that encompasses technologies such as quantum ghost imaging and high-dimensional quantum key distribution (QKD). The emergence of such quantum technologies also highlights the need for the development of methods for characterizing the elusive quantum state itself. In this document, we describe new technologies that use the quantum properties of light for security. The first is a technique that extends the principles behind QKD to the field of imaging. By applying the polarization-based BB84 protocol to individual photons in an active imaging system, we obtained images that are secure against intercept-resend jamming attacks. The second technology presented in this article is based on an extension of quantum ghost imaging. We used a holographic filtering technique to build a quantum ghost image identification system that uses a few pairs of photons to identify an object from a set of known objects. The third technology addressed in this document is a high-dimensional QKD system that uses orbital-angular-momentum (OAM) modes of light for encoding. Moving to a high-dimensional state space in QKD allows one to impress more information on each photon...

## Efficient Binary and Run Length Morphology and its Application to Document Image Processing

Breuel, Thomas M.
Tipo: Artigo de Revista Científica
Relevância na Pesquisa
35.95%
This paper describes the implementation and evaluation of an open source library for mathematical morphology based on packed binary and run-length compressed images for document imaging applications. Abstractions and patterns useful in the implementation of the interval operations are described. A number of benchmarks and comparisons to bit-blit based implementations on standard document images are provided.

## Device independent color imaging modules for IRIS explorer

Hauf, Christopher
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
35.93%
Having a flexible and expandable system of interconnecting modules which create device independent color image processing chains is a powerful tool for color science research and education. The objective of this research was to see if there existed a commercially available application which would provide the framework for such a system, learn that application, build a system of device independent imaging modules, and document the process so future developer's could easily expand the system. The Numerical Algorithms IRIS Explorer software proved to be the best fit for the system since it offered an intuitive user interface, a powerful set of default modules, and the capabilites for expansion through new module creation. With Explorer, a system of device independent color imaging modules were built, tested, and the module building process documented in this thesis meeting the objectives of the research.

## Treatment of diagrams in document image analysis

Blostein, Dorothea; Lank, Edward; Zanibbi, Richard
Fonte: Springer: Lecture Notes in Computer Science Publicador: Springer: Lecture Notes in Computer Science
Tipo: Proceedings
EN_US
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36.06%
Document image analysis is the study of converting documents from paper form to an electronic form that captures the information content of the document. Necessary processing includes recognition of document layout (to determine reading order, and to distinguish text from diagrams), recognition of text (called Optical Character Recognition, OCR), and processing of diagrams and photographs. The processing of diagrams has been an active research area for several decades. A selection of existing diagram recognition techniques are presented in this paper. Challenging problems in diagram recognition include (1) the great diversity of diagram types, (2) the difficulty of adequately describing the syntax and semantics of diagram notations, and (3) the need to handle imaging noise. Recognition techniques that are discussed include blackboard systems, stochastic grammars, Hidden Markov Models, and graph grammars.; "Treatment of Diagrams in Document Image Analysis," Theory and Application of Diagrams, First International Conference. Held in Edinburgh, Scotland, UK: 1-3 September 2000. The original publication is available at www.springerlink.com at http://www.springerlink.com/content/2uj3tg9t0ep0lxme/?p=46cca273a518495a925712750f043e56π=0

## Iterative morphological filters and application in document restoration

Zhang, Yeqing
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
35.95%
The binary nature of document degradation decides the suitability of morphological methods for restoration. Although the computational burden in morphological filter design can be mitigated by imposing constraints on the filter and employing the morphological filter MAE theorem in an efficient search strategy, the design constraints on the filter limit the performance of single-pass filter. It has been shown that iterative morphological filters can outperform single-pass filters. The investigation of iterative morphological filter design for image restoration is the main contribution of the present thesis. The study of iterative morphological filter design provides the understanding in depth of how filters achieve a better restoration in an iterative way. Various image-noise processes have been used to examine the effect of iteration on window constraint. Through iteration we have increased the class of filters from which an increasing estimator may be designed, so that the window constraint can be compensated by employing iterative morphological filter. Practically, we arrive at the conclusion that smaller size observation windows can achieve very similar restoration result in a MAE sense as large size windows by employing iterative design. It provides us a better practical design of increasing operators for document restoration compared to the single-pass filter using large size window. Theoretically...

## Imaging Connection; Satellites May Comb Earth for Wildfires; CIS Grad Trains Shuttle Crews; CIS Plays Key Role in NASA’s Airplane Observatory; Update: The Center’s Outreach Activities; RIT Scientists Shine Light on 10th Century Document; Rhody Returns From Sabbatical; Gatley Named Interim COS Dean; Distance Learning Continues Full Speed Ahead; Spectral Sensing Lab Wins Major Navy Grant

Chester F. Carlson Center for Imaging Science
Fonte: Chester F. Carlson Center for Imaging Science Publicador: Chester F. Carlson Center for Imaging Science
EN_US
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Imaging Connection is produced by a team of dedicated employees who work with CIS faculty, staff, and students to make this publication possible.

## Art recording art: Creating an interactive visual document of personal experience

Rubin, Ben
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Tese de Doutorado
EN_US
Relevância na Pesquisa
35.98%
This document was submitted to fulfill the thesis requirement for the Master of Fine Arts (MFA) at Rochester Institute of Technology (RIT). The following thesis introduction includes a Quick Response Code (QR) and a Universal Resource Locator (URL), both of which point the reader to a complex, interactive website housing an online version of the thesis and artwork. This thesis explores how the notetaking process can shape personal language as it bridges the contexts of education and art. The author appropriates the medium of notetaking and adapts it for the world of fine art. The project documents the various paths of all thirty graduating masters students from the College of Imaging Arts and Sciences (CIAS) who shared the Bevier Gallery for their thesis show in 2011. Through a combination of traditional and digital interactive media, the work reveals the experiential nature of notetaking, both in terms of the notetaker and the audience. The notes themselves are visual maps of conversations between the notetaker and his peers, taken in real-time and synchronized with accompanying audio and video recordings. Within this thesis, physical and web experiences blend together and become interdependent. The full library of these multimedia documents is shared in an online space and referenced throughout the online version of the thesis.

## Multimodal display techniques with application to breast imaging

Rafferty, Kimberly; Baum, Karl; Schimdt, Evan; Krol, Andrzej; Helguera, Maria
Fonte: Rochester Instituto de Tecnologia Publicador: Rochester Instituto de Tecnologia
Tipo: Artigo de Revista Científica
EN_US
Relevância na Pesquisa
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Application of a multimodality approach is advantageous for detection, diagnosis and management of breast cancer. In this context, F-18-FDG positron emission tomography (PET), and high-resolution and dynamic contrast-enhanced magnetic resonance imaging (MRI) have steadily gained clinical acceptance. Obtaining the spatial relationships between these modalities and conveying them to the observer maximizes the benefit that can be achieved. Traditionally the registered images are displayed side by side. However, it is believed that a combined MRI/PET display may be more beneficial. The advantage of a combined image lies in our inability to visually judge spatial relationships between images when they are viewed side by side. The process of combining the MRI and PET 3D images into a single 3D image is called image fusion. Color tables were defined for the fusion of MRI/PET images. This included color tables, which satisfy specific requirements, that were generated by a previously developed genetic algorithm. Radiologists were asked to evaluate images created using the selected fusion-for-visualization techniques. The study determined radiologists’ preference, ease of use, understanding, efficiency, and accuracy when reading images using each technique. The data studied...

## Search for long-lived heavy charged particles using a ring imaging Cherenkov technique at LHCb

Aaij, R.; Adeva, B.; Adinolfi, M.; Affolder, A.; Ajaltouni, Z.; Akar, S.; Albrecht, J.; Alessio, F.; Alexander, M.; Ali, S.; Alkhazov, G.; Alvarez Cartelle, P.; Alves Jr, A. A.; Amato, S.; Amerio, S.; Amhis, Y.; An, L.; Anderlini, L.; Anderson, J.; Andreo
Fonte: Springer Berlin Heidelberg Publicador: Springer Berlin Heidelberg
Tipo: Text
EN
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A search is performed for heavy long-lived charged particles using 3.0 \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\rm fb}^{-1}$$\end{document}fb-1 of proton–proton collisions collected at \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$\sqrt{s}$$\end{document}s\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$=$$\end{document}= 7 and 8  TeV with the LHCb detector. The search is mainly based on the response of the ring imaging Cherenkov detectors to distinguish the heavy, slow-moving particles from muons. No evidence is found for the production of such long-lived states. The results are expressed as limits on the Drell–Yan production of pairs of long-lived particles...