cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Measurement of the cosmic ray energy spectrum with IceTop-73
Creators: name: IceCube Collaboration
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on the measurement of the all-particle cosmic ray energy spectrum with the IceTop air shower array in the energy range from 1.58 PeV to 1.26 EeV. The IceTop air shower array is the surface component of the IceCube Neutrino Observatory at the geographical South Pole. The analysis was performed using only information from IceTop. The data used in this work were taken from June 1, 2010 to May 13, 2011. During that period the IceTop array consisted of 73 stations compared to 81 in its final configuration. The measured spectrum exhibits a clear deviation from a single power law above the knee around 4PeV and below 1EeV. We observe spectral hardening around 18 PeV and steepening around 130 PeV.
Presentazione - Il progetto VitiGEOSS
Creators: name: VitiGEOSS Partners
Publisher: name: Zenodo
Year: 2022

description: VitiGEOSS project's presentation offered during the Italian local stakeholder event organised on November 2022.
description: The VitiGEOSS project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 869565.
Expression of stabilized β-catenin in differentiated neurons of transgenic mice does not result in tumor formation
Creators: name: Kratz, John
name: Stearns, Duncan
name: Huso, David
name: Slunt, Hilda
name: Price, Donald
name: Borchelt, David
name: Eberhart, Charles
Publisher: name: Columbia University
Year: 2002
Subjects: Medulloblastoma
Embryonal tumors
Wnt genes
Transgenes--Expression
Central nervous system--Cancer
Carcinogenesis
Oncology
Pathology

description: Background: Medulloblastomas, embryonal tumors arising in the cerebellum, commonly contain mutations that activate Wnt signaling. To determine whether increased Wnt signaling in the adult CNS is sufficient to induce tumor formation, we created transgenic mice expressing either wild-type or activated β-catenin in the brain. Methods: Wild-type and mutant human β-catenin transgenes were expressed under the control of a murine PrP promoter fragment that drives high level postnatal expression in the CNS. Mutant β-catenin was stabilized by a serine to phenylalanine alteration in codon 37. Results: Expression of the mutant transgene resulted in an approximately two-fold increase in β-catenin protein levels in the cortex and cerebellum of adult animals. Immunohistochemical analysis revealed nuclear β-catenin in hippocampal, cortical and cerebellar neurons of transgenic animals but not in non-transgenic controls. Tail kinking was observed in some transgenic animals, but no CNS malformations or tumors were detected. Conclusions: No tumors or morphologic alterations were detected in the brains of transgenic mice expressing stabilized β-catenin, suggesting that postnatal Wnt signaling in differentiated neurons may not be sufficient to induce CNS tumorigenesis.
Work related musculoskeletal disorders among surgeons
Creators: name: SHARAN, Deepak
name: MOHANDOSS, Mathankumar
name: RANGANATHAN, Rameshkumar
name: JOSE, Jerrish
name: RAJKUMAR, Joshua Samuel
Publisher: name: CPH Conference : 11th International Symposium on Human Factors in Organisational Design and Management
Year: 2014

description: The aim of the study was to review the current literature in order to know various
measurement tools used, ergonomic risk factors and other finding related to work related musculoskeletal disorders among surgeons. Methodology: A systematic review was done using MEDLINE by the keywords “surgeons”, “ergonomics” and “musculoskeletal disorders”. All the articles were reviewed by two reviewers and studies which were not adequate and inappropriate were excluded. Study design, type of data collection, assessment tools and outcomes obtained in the respective study were noted. Reported surgical procedures included laproscopy, pediatric surgery, dermatological surgery, ENT and endoscopy. Results confirmed a strong association between musculoskeletal symptoms and the number of laparoscopies performed. Very few surgeons opted for treating their symptoms and the treatment methods largely included medications and physiotherapy.
Real-time HOG+SVM based object detection using SoC FPGA for a UHD video stream
Creators: name: Wasala, Mateusz
name: Kryjak, Tomasz
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Hardware Architecture (cs.AR)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Object detection is an essential component of many vision systems. For example, pedestrian detection is used in advanced driver assistance systems (ADAS) and advanced video surveillance systems (AVSS). Currently, most detectors use deep convolutional neural networks (e.g., the YOLO -- You Only Look Once -- family), which, however, due to their high computational complexity, are not able to process a very high-resolution video stream in real-time, especially within a limited energy budget. In this paper we present a hardware implementation of the well-known pedestrian detector with HOG (Histogram of Oriented Gradients) feature extraction and SVM (Support Vector Machine) classification. Our system running on AMD Xilinx Zynq UltraScale+ MPSoC (Multiprocessor System on Chip) device allows real-time processing of 4K resolution (UHD -- Ultra High Definition, 3840 x 2160 pixels) video for 60 frames per second. The system is capable of detecting a pedestrian in a single scale. The results obtained confirm the high suitability of reprogrammable devices in the real-time implementation of embedded vision systems.
description: 6 pages, accepted for the CPS & IoT 2022 conference
Additional file 1 of Barriers and facilitators to the implementation of guidelines in rare diseases: a systematic review
Creators: name: Gittus, Matthew
name: Chong, Jiehan
name: Sutton, Anthea
name: Ong, Albert C. M.
name: Fotheringham, James
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 1. Search strategy.
Cosmic Mnemonics
Creators: name: Scott, Douglas
name: Narimani, Ali
name: Page, Don N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Our current description of the large-scale Universe is now known with a precision undreamt of a generation ago. Within the simple standard cosmological model only six basic parameters are required. The usual parameter set includes quantities most directly probed by the cosmic microwave background, but the nature of these quantities is somewhat esoteric. However, many more numbers can be derived that quantify various aspects of our Universe. Using constraints from the Planck satellite, in combination with other data sets, we explore several such quantities, highlighting some specific examples.
description: 20 pages, 1 figure, corrected error in z_q and added some additional numbers
A high-resolution spectroscopic search for multiple populations in the 2 Gyr old cluster NGC 1846
Creators: name: Oh, Wei Shen
name: Nordlander, Thomas
name: Da Costa, Gary
name: Mackey, Dougal
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present detailed C, O, Na, Mg, Si, Ca, Ti, V, Fe, Zr, Ba, and Eu abundance measurements for 20 red giant branch (RGB) stars in the LMC star cluster NGC 1846 ([Fe/H] = -0.59). This cluster is 1.95 Gyr old and lies just below the supposed lower age limit (2 Gyr) for the presence of multiple populations in massive star clusters. Our measurements are based on high and low-resolution VLT/FLAMES spectra combined with photometric data from HST. Corrections for non-local thermodynamic equilibrium effects are also included for O, Na, Mg, Si, Ca, Fe and Ba. Our results show that there is no evidence for multiple populations in this cluster based on the lack of any intrinsic star-to-star spread in the abundances of Na and O: we place 95 \% confidence limits on the intrinsic dispersion for these elements of $\leq 0.07$ and $\leq 0.09$ dex, respectively. However, we do detect a significant spread in the carbon abundances, indicating varying evolutionary mixing occurring on the RGB that increases with luminosity. Overall, the general abundance patterns for NGC 1846 are similar to those seen in previous studies of intermediate-age LMC star clusters and field stars.
Quantum Dense Coding Network using Multimode Squeezed States of Light
Creators: name: Patra, Ayan
name: Gupta, Rivu
name: Roy, Saptarshi
name: Das, Tamoghna
name: De, Aditi Sen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a framework of a multimode dense coding network with multiple senders and a single receiver using continuous variable systems. The protocol is scalable to arbitrary numbers of modes with the encoding being displacements while the decoding involves homodyne measurements of the modes after they are combined in a pairwise manner by a sequence of beam splitters, thereby exhibiting its potentiality to implement in laboratories with currently available resources. We compute the closed form expression of the dense coding capacity for the cases of two and three senders that involve sharing of three- and four-mode states respectively. The dense coding capacity is calculated with the constraint of fixed average energy transmission when the modes of the sender are transferred to the receiver after the encoding operation. In both the cases, we demonstrate the quantum advantage of the protocol using paradigmatic classes of three- and four-mode states. The quantum advantage increases with the increase in the amount of energy that is allowed to be transmitted from the senders to the receiver.
description: 10 pages, 3 figures
“The wall is fixed, but each year there is a new story”: An interview with Mohammad Al-Azza
Creators: name: Bishara, Amahl
Publisher: name: Columbia University
Year: 2015
Subjects: Refugees, Palestinian Arab
Refugees in art
Arab-Israeli conflict
War photography
Art, Middle Eastern
War photographers
Refugee camps

description: The following is part of a series of short posts on photographic practice in Palestine. In the fall of 2014, Al-Azza’s work was exhibited at Tufts University, an event facilitated by Amahl Bishara and her students, a few of whom are featured here in the series. Though focused on the work of Mohammad Al-Azza, the posts speak to the broader situation of artistic practice in Palestine and its effective censorship under the ongoing occupation, but also to questions of intimacy and the public role of photography in the context of conflict.
Edge states in 2D lattices with hopping anisotropy and Chebyshev polynomials
Creators: name: Eliashvili, M.
name: Japaridze, G. I.
name: Tsitsishvili, G.
name: Tukhashvili, G.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Analytic technique based on Chebyshev polynomials is developed for studying two-dimensional lattice ribbons with hopping anisotropy. In particular, the tight-binding models on square and triangle lattice ribbons are investigated with anisotropic nearest neighbouring hoppings. For special values of hopping parameters the square lattice becomes topologically equivalent to a honeycomb one either with zigzag or armchair edges. In those cases as well as for triangle lattices we perform the exact analytic diagonalization of tight-binding Hamiltonians in terms of Chebyshev polynomials. Deep inside the edge state subband the wave functions exhibit exponential spatial damping which turns into power-law damping at edge-bulk transition point. It is shown that strong hopping anisotropy crashes down edge states, and the corresponding critical conditions are found.
description: 10 pages, misprints in formulae (65) corrected
Microscopic Hamiltonian and Chaotic Behavior for Barium Titanate Nanoparticles Revealed by Photonic Tunneling Model
Creators: name: Godwe, Emile
name: Florea, Olivia
name: Jarrar, Rabab
name: Justin, Mibaile
name: Asad, Jihad
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: In order to understand the microscopic properties of the ferroelectric nanoparticles, we review concepts of the attractive BaTiO3 nanocrystals where a photon field from its constituent electrons and ions are considered. We present an associated Hamiltonian and extended potential which are the bases of the physical description of the system from certain geometry of the semiquantal space with the specific phonon mode. Furthermore, we formulate the nonlinear dynamics equation of the systems with the famous microscopic Hamiltonian and Heisenberg equation of motion. In addition, we interest ourselves to a system of BaTiO3 nanocrystals and hypothesis leading to order-disorder nature of phase transitions. The latter are linked to the cooperative phenomenon of chains. The numerical simulations reveal that complex behaviors propagate in such system.
description: 9 pages, 2 figures
Implications of the isobar run results for chiral magnetic effect in heavy ion collisions
Creators: name: Kharzeev, Dmitri E.
name: Liao, Jinfeng
name: Shi, Shuzhe
Publisher: name: arXiv
Year: 2022
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Chiral magnetic effect (CME) is a macroscopic transport phenomenon induced by quantum anomaly in the presence of chiral imbalance and an external magnetic field. Relativistic heavy ion collisions provide the unique opportunity to look for CME in a non-Abelian plasma, where the chiral imbalance is created by topological transitions similar to those occurring in the Early Universe. The isobar run at Relativistic Heavy Ion Collider was proposed as a way to separate the possible CME signal driven by magnetic field from the background. The first blind analysis results from this important experiment have been recently released by the STAR Collaboration. Under the pre-defined assumption of identical background in RuRu and ZrZr, the results are inconsistent with the presence of CME, as well as with all existing theoretical models (whether including CME or not). However the observed difference of backgrounds must be taken into account before any physical conclusion is drawn. In this paper, we show that once the observed difference in hadron multiplicity and collective flow are quantitatively taken into account, the STAR results could be consistent with a finite CME signal contribution of about $(6.8\pm2.6)\%$.
description: 10 pages, 6 figures; final version
Additional file 2 of Barriers and facilitators to the implementation of guidelines in rare diseases: a systematic review
Creators: name: Gittus, Matthew
name: Chong, Jiehan
name: Sutton, Anthea
name: Ong, Albert C. M.
name: Fotheringham, James
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 2. Approved NICE technology appraisal guidance for non-oncology rare diseases.
Presentazione - Piattaforma VitiGEOSS e panoramica dei servizi
Creators: name: VitiGEOSS Partners
Publisher: name: Zenodo
Year: 2022

description: VitiGEOSS project's presentation offered during the Italian local stakeholder event organised on November 2022.
 
description: The VitiGEOSS project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 869565.
ICRISEM - P140-154 - Oct 2016.pdf
Creators: name: Sudeep B Chandramana
name: Prem, Arun
name: Preetha G Panicker
Publisher: name: figshare
Year: 2020
Subjects: subject: 150501 Consumer-Oriented Product or Service Development
subject: FOS: Economics and business
subject: 150503 Marketing Management (incl. Strategy and Customer Relations)
subject: 150504 Marketing Measurement
subject: 150505 Marketing Research Methodology
subject: 150506 Marketing Theory

description: Increasing internet and mobile penetration, growing acceptability of online payments and favourable demographics has provided online retailin India the unique opportunity for companies to connect with their customers. The online retail market is expected to grow from US$ 6 billion to US$ 70 billion during FY15-FY20. Increasing participation from foreign and private players has given a boost to Indian retail industry. India’s price competitiveness attracts large retail players to use it as a sourcing base. While the growth in this sector excites entrepreneurs and financial investors alike, some serious challenges are beginning to weigh down on the sector. While a few well-funded players, like Flipkart, Snapdeal and Amazon have succeeded in establishing brands and conquering large parts of the market, none of these major players have shown a profit, and few have even shown enough revenues to cover overhead after the cost of goods and deliveries. Problems with supply chain infrastructure, payment gateways and management of payment costs, tax related issues and intense competition have created an environment in which companies are struggling to survive. As a result, investors are holding their money close, creating a funding drought just as the industry hits major growing pains. As one of the fastest growing sectors in India in recent years, the megatrends that will shape the online retail sector and the emerging challenges faced by the market leader and followers in online retail industry is a significant area for research. The present study is a conceptual survey with a descriptive approach and is an attempt to explain the concept of online retail, business models for e-commerce, various trends in online retail, challenges before the sector in India and the practices followed by the market leader with respect to a volatile, uncertain, complex and ambiguous (VUCA) business context. A framework has also been adopted to compare the market leader’s performance with its nearest competitor.
A systematic analysis of biotech startups that went public in the first half of 2021
Creators: name: Huayamares, Sebastian G.
name: Lokugamage, Melissa P.
name: Sanchez, Alejandro J. Da Silva
name: Dahlman, James E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Finance (q-fin.GN)
subject: FOS: Economics and business

description: Biotechnologies are being commercialized at historic rates. In 2020, 74 biotech startups went public through an Initial Public Offering (IPO), and 60 went through the IPO process in the first six months of 2021. However, the traits associated with biotech startups obtaining recent IPOs have not been reported. Here we build a database of biotechs that underwent an IPO in the first half of 2021. By analyzing leadership, technological focus, clinical trials, and financing, we found that advanced degrees among the leadership, clinical trials, and intellectual property are important factors for biotech startups. The data also suggest that large private rounds can decrease time-to-IPO and affect post-IPO stock performance. Notably, these traits were often exhibited by the 138 biotech IPOs in 2018-2019, suggesting 2021 data were not driven by COVID.
description: 14 Pages main text, 6 Pages of Supplementary Info , 6 Figures, 4 Supplementary Figures
No universal minimum-mass extrasolar nebula: Evidence against in-situ accretion of systems of hot super-Earths
Creators: name: Raymond, Sean N.
name: Cossou, Christophe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It has been proposed that the observed systems of hot super-Earths formed in situ from high-mass disks. By fitting a disk profile to the entire population of Kepler planet candidates, Chiang & Laughlin (2013) constructed a "minimum-mass extrasolar nebula" with surface density profile Sigma r^-1.6. Here we use multiple-planet systems to show that it is inconsistent to assume a universal disk profile. Systems with 3-6 low-mass planets (or planet candidates) produce a diversity of minimum-mass disks with surface density profiles ranging from Sigma r^-3.2 to Sigma r^0.5 (5th-95th percentile). By simulating the transit detection of populations of synthetic planetary systems designed to match the properties of observed super-Earth systems, we show that a universal disk profile is statistically excluded at high confidence. Rather, the underlying distribution of minimum-mass disks is characterized by a broad range of surface density slopes. Models of gaseous disks can only explain a narrow range of slopes (roughly between r^0 and r^-1.5). Yet accretion of terrestrial planets in a gas-free environment preserves the initial radial distribution of building blocks. The known systems of hot super-Earths must therefore not represent the structure of their parent gas disks and can not have predominantly formed in situ. We instead interpret the diversity of disk slopes as the imprint of a process that re-arranged the solids relative to the gas in the inner parts of protoplanetary disks. A plausible mechanism is inward type 1 migration of Mars- to Earth-mass planetary embryos, perhaps followed by a final assembly phase.
description: Accepted to MNRAS Letters. 5 pages, 3 figures. (Updated references)
Politics of an Always Vanishing Present
Creators: name: Marsh, Wendell H.
Publisher: name: Columbia University
Year: 2015
Subjects: Political development
Revolutions--Philosophy
Protests (Egypt : 2011-)

description: Cairo is a booming center of the global south whose inhabitants conservatively number 20 million. It is not known for its silence, absence, or lack. Noise, density, and abundance are far more likely objects of inquiry, which the city duly throws up for scholars to inspect. Yet, beyond every observable fact and phenomenon to be collected, sampled and recorded here, lies an unruly excess that escapes scholars’ concepts and practices. Appropriately then, the recently held conference “Excavating Absence: Histories of the (Im)material” revolved around a productive and generative paradox: How does one listen to silence and make tangible something as fleeting and formless as the emotion of historical actors or their cosmology? In other words, how does one know what is not there and, more importantly, what are the politics of that knowing?
title: Wir sind das Salz der Erde; [1848]
title: Wacht! daß sie nicht versalzen werde!
titleType: Subtitle
Creators: name: Veit, Philipp
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Mit Monogramm: IPSE fecit A.D. 84. - Zeichner ermittelt
Imperial Consequences of Things: An interview with Alan Mikhail
Creators: name: Karlitekin, Selim
Publisher: name: Columbia University
Year: 2015
Subjects: subject: Economic history--Environmental aspects
subject: Nature conservation--Political aspects
subject: Environmental policy
subject: Ecology
subject: FOS: Biological sciences

description: In this interview, Alan Mikhail discusses his own work on the environmental history of the Ottoman Empire, the wider intervention of environmental history, and the challenge of interdisciplinarity. The interview was initially conducted in person at MESA 2013 and elaborated electronically over the course of 2014.
Dynamically Forming Extremely Low-Mass White Dwarf Binaries in Wide Orbits
Creators: name: Khurana, Ambreesh
name: Chawla, Chirag
name: Chatterjee, Sourav
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The detection of a 0.2 Msun extremely low-mass white dwarf (EW) in a wide orbit (Porb about 450 days) with a 1.1 Msun main-sequence (MS) companion, KIC 8145411, challenges our current understanding of how EWs form. The traditional channel for EW formation, via mass transfer from the WD progenitor, is expected to form EW binaries in tight orbits. Indeed, the majority of known EWs are found in tight binaries with a median Porb about 5.4 hrs. Using numerical scattering experiments, we find that binary-binary strong encounters in star clusters can sufficiently widen the orbit of a typical EW binary, to explain the observed wide orbit of the KIC 8145411 system. The Porb distribution for EW binaries produced through binary-binary encounters is bimodal: one mode corresponds to the initial orbital period of the EW binary, while the other is near Porb about a few 100 days, similar to the orbital period of the KIC 8145411 system. We find that the production of wide EW binaries that are also ejected from the cluster peaks at a star cluster mass of about 10^5 Msun with a rate of about 10^{-3} Gyr^{-1}. Assuming that 50% of all stars form in star clusters and an initial cluster mass function proportional to m^{-2}, we estimate a galactic formation rate of about 4.16 x 10^3 Gyr^{-1} for wide EW binaries.
description: 18 pages, 14 figures, and 2 tables; accepted for publication in the Astrophysical Journal
Geo-neutrinos
Creators: name: Bellini, G.
name: Ianni, A.
name: Ludhova, L.
name: Mantovani, F.
name: McDonough, W. F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: We review a new interdisciplinary field between Geology and Physics: the study of the Earth's geo-neutrino flux. We describe competing models for the composition of the Earth, present geological insights into the make up of the continental and oceanic crust, those parts of the Earth that concentrate Th and U, the heat producing elements, and provide details of the regional settings in the continents and oceans where operating and planned detectors are sited. Details are presented for the only two operating detectors that are capable of measuring the Earth's geo-neutrinos flux: Borexino and KamLAND; results achieved to date are presented, along with their impacts on geophysical and geochemical models of the Earth. Finally, future planned experiments are highlighted.
Dakar’s Market Imaginary: Mobility, Visuality, and the Creative Economy of Second Chances
Creators: name: Grabski, Joanna
Publisher: name: Columbia University
Year: 2014
Subjects: Secondhand trade
Economic development--Philosophy
Markets in art
Space in economics
Markets
Africans
Commerce

description: My concern in this essay is with the concepts that produce the market imaginary in the city of Dakar, Senegal. In particular, this essay centers on a cluster of questions: how might we characterize something as intangible and abstract as the market imaginary in this particular city? How do the individuals involved in its imagining situate and articulate its relevance? And, how is the everyday social and visual experience of Dakar’s markets indicative and generative of the market imaginary? To pursue these questions, I focus on the themes of mobility, visuality, and the creative economy of second chances in relation to my research about two markets in Dakar. The first is Marché Colobane, a sprawling market for second hand goods located in a neighborhood many would describe as a slum; the second is Dakar’s art market, a multi-sited entity constituted by the transactions between artists and art world figures. Inscribed by the high and low of luxury and scarcity, each market’s spaces, propositions, and participants appear unambiguously asymmetrical at first glance. Yet, the visual and social practices of each market overlap and taken together they create a scope of inquiry that allows for analysis of markets as spaces that are embedded in neighborhoods, cities, and global commodity flows as much as they are productive of the imagination. In addressing markets and mobility, I consider how markets image mobility as normative while creating the conditions of possibility for movement. Markets are sites where people, objects and desires both converge and diverge. Furthermore, I consider how networks compose and articulate in the market to provide the logistical framework for mobility across many registers. The remainder of my essay elaborates on the creative economy of second chances for people, places, and objects. Underpinned by the recognition that the practices of remaking and everyday visual experience are vital to the imagination, I offer a theorization of visuality, speculation, and reinvention in relation to the market imaginary. I foreground the market’s multiple arrangements of objects and people in imaging a modality where reinvention is regularized in everyday visuality and the market imaginary. The propositions populating Marché Colobane and the art market emblematize the possibility of many forms of reinvention. Moving between analysis of these themes in relation to Marché Colobane and Dakar’s art market, I attend to the specific topography, spatial configurations, objects, and participants constituting each to theorize the market’s visual, social, and commercial spaces as productive of its notional space – the market imaginary. This essay theorizes the market’s relevance as transcending commercial inscriptions for it also generates and consolidates a market imaginary about many potential inclusions, circulations, and reinventions.
GoSam applications for automated NLO calculations
Creators: name: Cullen, G.
name: van Deurzen, H.
name: Greiner, N.
name: Heinrich, G.
name: Luisoni, G.
name: Mastrolia, P.
name: Mirabella, E.
name: Ossola, G.
name: Peraro, T.
name: Reichel, J.
name: Schlenk, J.
name: von Soden-Fraunhofen, J. F.
name: Tramontano, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We present applications of the program GoSam for the automated calculation of one-loop amplitudes. Results for NLO QCD corrections to beyond the Standard Model processes as well as Higgs plus up to three-jet production in gluon fusion are shown. We also discuss some new features of the program.
description: 9 pages, 5 figures, Contribution to the conference ACAT 2013 (Advanced Computing and Analysis Techniques in physics), Beijing, China, May 2013
Conceiving Movement in “From These Streets”
Creators: name: McAvoy, Libby
Publisher: name: Columbia University
Year: 2015
Subjects: Refugees, Palestinian Arab
War photography
Photography, Artistic--Technique
Refugee camps

description: The following is part of a series of short posts on photographic practice in Palestine. In the fall of 2014, Al-Azza’s work was exhibited at Tufts University, an event facilitated by Amahl Bishara and her students, a few of whom are featured here in the series. Though focused on the work of Mohammad Al-Azza, the posts speak to the broader situation of artistic practice in Palestine and its effective censorship under the ongoing occupation, but also to questions of intimacy and the public role of photography in the context of conflict.
Predicting Time-to-conversion for Dementia of Alzheimer's Type using Multi-modal Deep Survival Analysis
Creators: name: Mirabnahrazam, Ghazal
name: Ma, Da
name: Beaulac, Cédric
name: Lee, Sieun
name: Popuri, Karteek
name: Lee, Hyunwoo
name: Cao, Jiguo
name: Galvin, James E
name: Wang, Lei
name: Beg, Mirza Faisal
name: Initiative, the Alzheimer's Disease Neuroimaging
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Dementia of Alzheimer's Type (DAT) is a complex disorder influenced by numerous factors, but it is unclear how each factor contributes to disease progression. An in-depth examination of these factors may yield an accurate estimate of time-to-conversion to DAT for patients at various disease stages. We used 401 subjects with 63 features from MRI, genetic, and CDC (Cognitive tests, Demographic, and CSF) data modalities in the Alzheimer's Disease Neuroimaging Initiative (ADNI) database. We used a deep learning-based survival analysis model that extends the classic Cox regression model to predict time-to-conversion to DAT. Our findings showed that genetic features contributed the least to survival analysis, while CDC features contributed the most. Combining MRI and genetic features improved survival prediction over using either modality alone, but adding CDC to any combination of features only worked as well as using only CDC features. Consequently, our study demonstrated that using the current clinical procedure, which includes gathering cognitive test results, can outperform survival analysis results produced using costly genetic or CSF data.
Charting Intimacy in Refugee Families
Creators: name: Jamil, Jianne
Publisher: name: Columbia University
Year: 2015
Subjects: Refugees, Palestinian Arab
Refugees--Family relationships
War photography
Older refugees
Intimacy (Psychology) in art
Refugee camps

description: The following is part of a series of short posts on photographic practice in Palestine. In the fall of 2014, Al-Azza’s work was exhibited at Tufts University, an event facilitated by Amahl Bishara and her students, a few of whom are featured here in the series. Though focused on the work of Mohammad Al-Azza, the posts speak to the broader situation of artistic practice in Palestine and its effective censorship under the ongoing occupation, but also to questions of intimacy and the public role of photography in the context of conflict.
Gradient Based Reconstruction: Inviscid and viscous flux discretizations, shock capturing, and its application to single and multicomponent flows
Creators: name: Chamarthi, Amareshwara Sainadh
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: This paper presents a gradient-based reconstruction approach for simulations of compressible single and multi-species Navier-Stokes equations. The novel feature of the proposed algorithm is the efficient reconstruction via derivative sharing between the inviscid and viscous schemes: highly accurate explicit and implicit gradients are used for the solution reconstruction expressed in terms of derivatives. The higher-order accurate gradients of the velocity components are reused to compute the viscous fluxes for efficiency and significantly improve the solution and gradient quality, as demonstrated by several viscous-flow test cases. The viscous schemes are fourth-order accurate and carefully designed with a high-frequency damping property, which has been identified as a critically important property for stable compressible-flow simulations with shock waves [Chamarthi et al., JCP, 2022]. Shocks and material discontinuities are captured using a monotonicity-preserving (MP) scheme, which is also improved by reusing the gradients. For inviscid test cases, The proposed scheme is fourth-order for linear and second-order accurate for non-linear problems. Several numerical results obtained for simulations of complex viscous flows are presented to demonstrate the accuracy and robustness of the proposed methodology.
description: 40 pages, 25 figures
Across Infrastructures of Restriction: Bringing Palestinian Photography from a Refugee Camp to an American University
Creators: name: Bishara, Amahl
Publisher: name: Columbia University
Year: 2015
Subjects: Arab-Israeli conflict
War photography
Refugees in art
Refugee camps
Art, Middle Eastern
Photographs--Censorship
Refugees, Palestinian Arab

description: The following is part of a series of short posts on photographic practice in Palestine. In the fall of 2014, Al-Azza’s work was exhibited at Tufts University, an event facilitated by Amahl Bishara and her students, a few of whom are featured here in the series. Though focused on the work of Mohammad Al-Azza, the posts speak to the broader situation of artistic practice in Palestine and its effective censorship under the ongoing occupation, but also to questions of intimacy and the public role of photography in the context of conflict.
Data Cleansing for Indoor Positioning Wi-Fi Fingerprinting Datasets
Creators: name: Quezada-Gaibor, Darwin
name: Klus, Lucie
name: Torres-Sospedra, Joaquín
name: Lohan, Elena Simona
name: Nurmi, Jari
name: Granell, Carlos
name: Huerta, Joaquín
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Wearable and IoT devices requiring positioning and localisation services grow in number exponentially every year. This rapid growth also produces millions of data entries that need to be pre-processed prior to being used in any indoor positioning system to ensure the data quality and provide a high Quality of Service (QoS) to the end-user. In this paper, we offer a novel and straightforward data cleansing algorithm for WLAN fingerprinting radio maps. This algorithm is based on the correlation among fingerprints using the Received Signal Strength (RSS) values and the Access Points (APs)'s identifier. We use those to compute the correlation among all samples in the dataset and remove fingerprints with low level of correlation from the dataset. We evaluated the proposed method on 14 independent publicly-available datasets. As a result, an average of 14% of fingerprints were removed from the datasets. The 2D positioning error was reduced by 2.7% and 3D positioning error by 5.3% with a slight increase in the floor hit rate by 1.2% on average. Consequently, the average speed of position prediction was also increased by 14%.
description: Submitted to ALIAS2022/MDM2022
Thermodynamics of one and two-qubit nonequilibrium heat engines running between squeezed thermal reservoirs
Creators: name: Kumar, Ashutosh
name: Bagarti, Trilochan
name: Lahiri, Sourabh
name: Banerjee, Subhashish
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum heat engines form an active field of research due to their potential applications. There are several phenomena that are unique to the quantum regime, some of which are known to give these engines an edge over their classical counterparts. In this work, we focus on the study of one and two-qubit finite-time Otto engines interacting with squeezed thermal baths, and discuss their important distinctions as well as the advantage of using the two-qubit engine. In particular, the two-qubit engine offers an interesting study of the interplay between the degree of squeezing and that of the coherence between the two qubits. We find that the two-qubit engine generally yields higher power than its one-qubit counterpart. The effective temperature of the squeezed baths can be calculated both for the one and two-qubit engines, and they tend to show an exponential growth with increase in squeezing parameters $r_h$ and $r_c$. It is also observed that by tuning the squeezing parameters, the machine can be made to work either in the engine or in the refrigerator mode. Additional effects due to the change in the inter-qubit separation have been studied.
description: 20 pages, 12 figures
2019_Think India Journal_Market Structure Analysis of Ecommerce industry in India.pdf
Creators: name: Sudeep B Chandramana
Publisher: name: figshare
Year: 2020
Subjects: subject: 150501 Consumer-Oriented Product or Service Development
subject: FOS: Economics and business
subject: 150503 Marketing Management (incl. Strategy and Customer Relations)
subject: 150504 Marketing Measurement
subject: 150505 Marketing Research Methodology
subject: 150506 Marketing Theory

description: Speedy diffusion of high-speed internet and internet-enabled smart gadgets, growingacceptability of online payments and favourable demographics has provided online retail in Indiathe unique opportunity for companies to connect with customers. The online retail market isprojected to grow from US$ 6 billion to US$ 70 billion during FY15-FY20. India’s pricecompetitiveness attracts large retail players to use it as a sourcing base. While a few well-fundedplayers, like Amazon, Flipkart, and Snapdeal are successful in establishing brands and reachingto wide areas of the market, none of these have shown a profit, and none have even shownsufficient revenues to meet overhead along with the cost of goods and deliveries. Problems withsupply chain infrastructure, payment gateways and management of payment costs, tax relatedissues and intense competition have created a market in which companies are struggling to exist.As a result, investors are keeping their funds close, creating a financing drought just as theindustry aims major growth pains. As one of the swiftest growing sectors in India in recent years,the megatrends that will shape the online retail sector and the emerging challenges faced by themarket leader and followers in online retail industry is a significant area for research. The presentstudy is a conceptual survey with a descriptive approach and is an attempt to explain the marketstructure of online retail industry, business models for e-commerce, various trends in onlineretail and challenges before the sector in India.
Serviços de viticultura de precisão para uma gestão mais sustentável da vinha
Creators: name: VitiGEOSS Partners
Publisher: name: Zenodo
Year: 2023

description: VitiGEOSS project's presentation offered during the Portuguese local stakeholder event organised on May 2023.
description: The VitiGEOSS project has received funding from the European Union's Horizon 2020 research and innovation programme under grant agreement No. 869565.
Generalized Lieb's theorem for noninteracting non-Hermitian $n$-partite tight-binding lattices
Creators: name: Marques, A. M.
name: Dias, R. G.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Hermitian bipartite models are characterized by the presence of chiral symmetry and by Lieb's theorem, which derives the number of zero-energy flat bands of the model from the imbalance of sites between its two sublattices. Here, we introduce a class of non-Hermitian models with an arbitrary number of sublattices connected in a unidirectional and cyclical way and show that the number of zero-energy flat bands of these models can be found from a generalized version of Lieb's theorem, in what regards its application to noninteracting tight-binding models, involving the imbalance between each sublattice and the sublattice of lowest dimension. Furthermore, these models are also shown to obey a generalized chiral symmetry, of the type found in the context of certain clock or parafermionic systems. The main results are illustrated with a simple toy model, and possible realizations in different platforms of the models introduced here are discussed.
description: 13 pages, 7 figures
Endothelial dysfunction is associated with carotid plaque: a cross-sectional study from the population based Northern Manhattan Study
Creators: name: Rundek, Tatjana
name: Hundle, Rameet
name: Ratchford, Elizabeth
name: Ramas, Romel
name: Sciacca, Robert R.
name: Di Tullio, Marco R.
name: Boden-Albala, Bernadette
name: Miyake, Yumiko
name: Elkind, Mitchell S.
name: Sacco, Ralph L.
name: Homma, Shunichi
Publisher: name: Columbia University
Year: 2006
Subjects: Cardiovascular system--Abnormalities
Atherosclerosis--Etiology
Atherosclerosis--Risk factors
Atherosclerotic plaque
Carotid artery--Abnormalities
Medicine

description: Background: Impaired vascular function occurs early in atherogenesis. Brachial flow mediated dilatation (FMD) is a non-invasive measure of vascular function and may be an important marker of preclinical atherosclerosis. Data on the association between FMD and carotid plaque in multi-ethnic populations are limited. The objective of this study was to determine whether endothelial dysfunction is independently associated with carotid plaque in a community of northern Manhattan. Methods: In the population-based Northern Manhattan Study (NOMAS), high-resolution B-mode ultrasound images of the brachial and carotid arteries were obtained in 643 stroke-free subjects (mean age 66 years; 55% women; 65% Caribbean-Hispanic, 17% African-American, 16% Caucasian). Brachial FMD was measured during reactive hyperemia. Maximum carotid plaque thickness (MCPT) was measured at the peak plaque prominence. Results: The mean brachial FMD was 5.78 ± 3.83 %. Carotid plaque was present in 339 (53%) subjects. The mean MCPT was 1.68 ± 0.82 mm, and the 75th percentile was 2.0 mm. Reduced FMD was significantly associated with increased MCPT. After adjusting for demographics, vascular risk factors, and education, each percent of FMD decrease was associated with a significant 0.02 mm increase in MCPT (p = 0.028). In a dichotomous adjusted model, blunted FMD was associated with an increased risk of MCPT ≥ 2.0 mm (OR, 1.11 for every 1% decrease in FMD; 95% CI, 1.03–1.19). Conclusion: Decreased brachial FMD is independently associated with carotid plaque. Non-invasive evaluation of endothelial dysfunction may be a useful marker of preclinical atherosclerosis and help to individualize cardiovascular risk assessment beyond traditional risk factors.
Additional file 3 of Barriers and facilitators to the implementation of guidelines in rare diseases: a systematic review
Creators: name: Gittus, Matthew
name: Chong, Jiehan
name: Sutton, Anthea
name: Ong, Albert C. M.
name: Fotheringham, James
Publisher: name: figshare
Year: 2023
Subjects: subject: Medicine
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 3. PRISMA flow diagram.
Splitting bright matter-wave solitons on narrow potential barriers: quantum to classical transition and applications to interferometry
Creators: name: Helm, J. L.
name: Rooney, S. J.
name: Weiss, Christoph
name: Gardiner, S. A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We study bright solitons in the Gross-Pitaevskii equation as they are split and recombined in a low energy system. We present new analytic results determining the general region in which a soliton may not be split on a potential barrier, and confirm these results numerically. Furthermore, we analyse the energetic regimes where quantum fluctuations in the initial center of mass position and momentum become influential on the outcome of soliton splitting and recombination events. We then use the results of this analysis to determine a parameter regime where soliton interferometry is practicable.
description: 15 pages, 11 figures