pinecone/core-2020-05-10-deduplication huggingface dataset:
Object tracking in surveillance videos using compressed-domain features from scalable bit-streams

Recent developments in the video coding technology brought new possibilities of utilising inherently embedded features of the encoded bit-stream in applications such as video adaptation and analysis. Due to the proliferation of surveillance videos there is a strong demand for highly efficient and reliable algorithms for object tracking. This paper presents a new approach for the fast compressed domain analysis utilising motion data from the encoded bit-streams in order to achieve low-processing complexity of object tracking in the surveillance videos. The algorithm estimates the trajectory of video objects by using compressed domain motion vectors extracted directly from standard H.264/MPEG-4 Advanced Video Coding (AVC) and Scalable Video Coding (SVC) bit-streams. The experimental results show comparable tracking precision when evaluated against the standard algorithms in uncompressed domain, while maintaining low computational complexity and fast processing time, thus making the algorithm suitable for real time and streaming applications where good estimates of object trajectories have to be computed fast
Testing baryon-induced core formation in ΛCDM : a comparison of the DC14 and coreNFW dark matter halo models on galaxy rotation curves

Recent cosmological hydrodynamical simulations suggest that baryonic processes, and in particular supernova feedback following bursts of star formation, can alter the structure of dark matter haloes and transform primordial cusps into shallower cores. To assess whether this mechanism offers a solution to the long-standing cusp-core controversy, simulated haloes must be compared to real dark matter haloes inferred from galaxy rotation curves. For this purpose, two new dark matter density profiles were recently derived from simulations of galaxies in complementary mass ranges: the DC14 halo (10(10) < M-halo/M circle dot < 8 x 10(11)) and the CORENFW halo (10(7) < M-halo/M circle dot < 10(9)). Both models have individually been found to give good fits to observed rotation curves. For the DC14 model, however, the agreement of the predicted halo properties with cosmological scaling relations was confirmed by one study, but strongly refuted by another. A next important question is whether, despite their different approaches, the two models converge to the same solution in the mass range where both should be appropriate. To investigate this, we tested the DC14 and CORENFW halo models on the rotation curves of a selection of galaxies with halo masses in the range 4 x 10(9) M circle dot - 7 x 10(10) M circle dot and compared their predictions. We further applied the DC14 model to a set of rotation curves at higher halo masses, up to 9 x 10(11) M circle dot, to verify the agreement with the cosmological scaling relations. Both models are generally able to reproduce the observed rotation curves, in line with earlier results, and the predicted dark matter haloes are consistent with the cosmological c - M-halo and M-* - M-halo relations. We find that the DC14 and CORENFW models are also in fairly good agreement with each other, even though DC14 tends to predict slightly less extended cores and somewhat more concentrated haloes than CORENFW. While the quality of the fits is generally similar for both halo models, DC14 does perform significantly better than CORENFW for three galaxies. In each of these cases, the problem for CORENFW is related to connection of the core size to the stellar half-mass radius, although we argue that it is justifiable to relax this connection for NGC3741. A larger core radius brings the CORENFW model for this galaxy in good agreement with the data and the DC14 model
Pathological hemichannels associated with human Cx26 mutations causing Keratitis-Ichthyosis-Deafness syndrome

Abstract Connexin (Cx) proteins form intercellular gap junction channels by first assembling into single membrane hemichannels that then dock to connect the cytoplasm of two adjacent cells. Gap junctions are highly specialized structures that allow the direct passage of small molecules between cells to maintain tissue homeostasis. Functional activity of nonjunctional hemichannels has now been shown in several experimental systems. Hemichannels may constitute an important diffusional exchange pathway with the extracellular space, but the extent of their normal physiological role is currently unknown. Aberrant hemichannel activity has been linked to mutations of connexin proteins involved in genetic diseases. Here, we review a proposed role for hemichannels in the pathogenesis of Keratitis-Ichthyosis-Deafness (KID) syndrome associated with connexin26 (Cx26) mutations. Continued functional evaluation of mutated hemichannels linked to human hereditary disorders may provide additional insights into the mechanisms governing their regulation in normal physiology and dysregulation in disease. This article is part of a Special Issue entitled: The Communicating junctions, composition, structure and characteristics. © 2011 Elsevier B.V.NIH Grant R01 AR05950
Large scale separation and hadronic resonances from a new strongly
  interacting sector

A large separation of scales is frequently required by theories describing
physics beyond the Standard Model. In mass-split models with some massless
(light) and some heavy flavors, large scale separation arises by construction
if the system is conformal in the ultraviolet but chirally broken in the
infrared. Due to the presence of a conformal fixed point, such chirally broken
systems show hyperscaling and have a highly constrained resonance spectrum that
is significantly different from the QCD spectrum. We present numerical evidence
for hyperscaling of both light-light and heavy-heavy meson resonances and show
that they only depend on the ratio of the light and heavy flavor masses. The
heavy-heavy spectrum is qualitatively different from QCD. The mass of
heavy-heavy quarkonia e.g. is not proportional to the constituent quark mass.Comment: Talk presented at The European Physical Society Conference on High
  Energy Physics, 5-12 July, 2017, Venice; 6 pages, 3 figure
The spin polarization of Mn atoms in paramagnetic CuMn alloys induced by a Co layer. \ud

Using the surface, interface, and element specificity of x-ray resonant magnetic scattering in combination with x-ray magnetic circular dichroism, we have spatially resolved the polarization, and hence the spin accumulation in Mn high susceptibility material in close proximity to a ferromagnetic layer. The magnetic polarization of Mn and Cu 3d electrons in paramagnetic CuMn layers is detected in a Co/Cu(x)/CuMn structure for varying copper layer thicknesses (x). The size of the Mn and Cu L2–3-edge dichroism shows a decrease in the polarization for increasing copper thickness indicating the dominant interfacial nature of the Cu and Mn spin polarization. The Mn polarization appears to be much higher than that of Cu
The skin awareness study : promoting thorough skin self-examination for skin cancer among men 50 years or older

Background: Incidence and mortality from skin cancers including melanoma are highest among men 50 years or older. Thorough skin self-examination may be beneficial to improve skin cancers outcomes.--------- \ud
Objectives: To develop and conduct a randomized-controlled trial of a video-based intervention to improve skin self-examination behavior among men 50 years or older.--------- \ud
Methods: Pilot work ascertained appropriate targeting of the 12-minute intervention video towards men 50 years or older. Overall, 968 men were recruited and 929 completed baseline telephone assessment. Baseline analysis assessed randomization balance and demographic, skin cancer risk and attitudinal factors associated with conducting a whole-body skin self-examination or receiving a whole-body clinical skin examination by a doctor during the past 12 months.---------  \ud
Results: Randomization resulted in well-balanced intervention and control groups. Overall 13% of men reported conducting a thorough skin self-examination using a mirror or the help of another person to check difficult to see areas, while 39% reported having received a whole-body skin examination by a doctor within the past 12 months. Confidence in finding time for and receiving advice or instructions by a doctor to perform a skin self-examination were among the factors associated with thorough skin self-examination at baseline.---------- \ud
Conclusions: Men 50 years or older can successfully be recruited to a video-based intervention trial with the aim reduce their burden through skin cancer. Randomization by computer generated randomization list resulted in good balance between control and intervention group and baseline analysis determined factors associated with skin cancer early detection behavior at baseline
Extensions in Jacobian algebras and cluster categories of marked surfaces.

In the context of representation theory of finite dimensional algebras, string algebras have been extensively studied and most aspects of their representation theory are well-understood. One exception to this is the classification of extensions between indecomposable modules. In this paper we explicitly describe such extensions for a class of string algebras, namely gentle algebras associated to surface triangulations. These algebras arise as Jacobian algebras of unpunctured surfaces. We relate the extension spaces of indecomposable modules to crossings of generalised arcs in the surface and give explicit bases of the extension spaces for indecomposable modules in almost all cases. We show that the dimensions of these extension spaces are given in terms of crossing arcs in the surface.\ud
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Our approach is new and consists of interpreting snake graphs as indecomposable modules. In order to show that our basis is a spanning set, we need to work in the associated cluster category where we explicitly calculate the middle terms of extensions and give bases of their extension spaces. We note that not all extensions in the cluster category give rise to extensions for the Jacobian algebra
Drosophila myc regulates cellular growth during development.

Transcription factors of the Myc proto-oncogene family promote cell division, but how they do this is poorly understood. Here we address the functions of Drosophila Myc (dMyc) during development. Using mosaic analysis in the fly wing, we show that loss of dMyc retards cellular growth (accumulation of cell mass) and reduces cell size, whereas dMyc overproduction increases growth rates and cell size. dMyc-induced growth promotes G1/S progression but fails to accelerate cell division because G2/M progression is independently controlled by Cdc25/String. We also show that the secreted signal Wingless patterns growth in the wing primordium by modulating dMyc expression. Our results indicate that dMyc links patterning signals to cell division by regulating primary targets involved in cellular growth and metabolism
Cultural meaning, advertising and national culture: a four-country study

Cultural meaning transfer theory and GLOBE cultural dimensions were employed in this comparative study to examine the extent to which cultural meaning presented in advertisements reflected national cultures of the target countries. Content analysis was applied to 847 magazine advertisements from England, Hungary, Ireland, and Poland to investigate whether the use of advertising appeals presented in these advertisements mirrored variations in cultures as described by GLOBE Society Values. Results revealed that, in line with the hypotheses, there were similarities and differences in the use of advertising appeals, and only some of them mirrored the cultural variations. GLOBE Society Values were more likely to predict the use of appeals than GLOBE Society Practices, but not for all appeals. The results suggest that advertisers can draw on national cultures for cultural meanings to be used in advertisements only to a limited extent. It may be that advertisements mold rather than mirror societal values, or that only certain cultural traits are important for advertisers. GLOBE dimensions may therefore be of limited use when analyzing and explaining the content of advertisements
Measurement of the cross section for the production of a W boson in association with b-jets in pp collisions at root s=7 TeV with the ATLAS detector

A measurement is presented of the cross section for the production of a W boson with one or two jets, of which at least one must be a b-jet, in pp   collisions at View the MathML sources=7 TeV. Production via top decay is not included in the signal definition. The measurement is based on 35 pb−135 pb−1 of data collected with the ATLAS detector at the LHC. The W+bW+b-jet cross section is defined for jets reconstructed with the anti-ktkt clustering algorithm with transverse momentum above 25 GeV and rapidity within ±2.1. The b-jets are identified by reconstructing secondary vertices. The fiducial cross section is measured both for the electron and muon decay channel of the W   boson and is found to be 10.2±1.9(stat)±2.6(syst) pb10.2±1.9(stat)±2.6(syst) pb for one lepton flavour. The results are compared with next-to-leading order QCD calculations, which predict a cross section smaller than, though consistent with, the measured value.We are grateful to Laura Reina and Doreen Wackeroth for helpful correspondence and discussions. We thank CERN for the very successful operation of the LHC, as well as the support staff from our institutions without whom ATLAS could not be operated efficiently. We acknowledge the support of ANPCyT, Argentina; YerPhI, Armenia; ARC, Australia; BMWF, Austria; ANAS, Azerbaijan; SSTC, Belarus; CNPq and FAPESP, Brazil; NSERC, NRC and CFI, Canada; CERN; CONICYT, Chile; CAS, MOST and NSFC, China; COLCIENCIAS, Colombia; MSMT CR, MPO CR and VSC CR, Czech Republic; DNRF, DNSRC and Lundbeck Foundation, Denmark; ARTEMIS, European Union; IN2P3-CNRS, CEA-DSM/IRFU, France; GNAS, Georgia; BMBF, DFG, HGF, MPG and AvH Foundation, Germany; GSRT, Greece; ISF, MINERVA, GIF, DIP and Benoziyo Center, Israel; INFN, Italy; MEXT and JSPS, Japan; CNRST, Morocco; FOM and NWO, Netherlands; RCN, Norway; MNiSW, Poland; GRICES and FCT, Portugal; MERYS (MECTS), Romania; MES of Russia and ROSATOM, Russian Federation; JINR; MSTD, Serbia; MSSR, Slovakia; ARRS and MVZT, Slovenia; DST/NRF, South Africa; MICINN, Spain; SRC and Wallenberg Foundation, Sweden; SER, SNSF and Cantons of Bern and Geneva, Switzerland; NSC, Taiwan; TAEK, Turkey; STFC, the Royal Society and Leverhulme Trust, United Kingdom; DOE and NSF, United States. The crucial computing support from all WLCG partners is acknowledged gratefully, in particular from CERN and the ATLAS Tier-1 facilities at TRIUMF (Canada), NDGF (Denmark, Norway, Sweden), CC-IN2P3 (France), KIT/GridKA (Germany), INFN-CNAF (Italy), NL-T1 (Netherlands), PIC (Spain), ASGC (Taiwan), RAL (UK) and BNL (USA) and in the Tier-2 facilities worldwide.info:eu-repo/semantics/publishedVersio
On the influence of marine biogeochemical processes over CO2 exchange between the atmosphere and ocean

Highlights\ud
\ud
•    Biogeochemical processes create CO2 sources/sinks by altering seawater AT and CT\ud
•    Source/sink strength depends on local seawater ‘isocapnic quotient’ (Q)\ud
•    Q depends on seawater temperature and the state of the marine carbonate system\ud
•    Spatiotemporal variability in Q drives heterogeneous CO2 source/sink magnitude\ud
•    Future warming and CO2 emissions will modify Q and the size of CO2 sources/sinks\ud
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Abstract\ud
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The ocean holds a large reservoir of carbon dioxide (CO2), and mitigates climate change through uptake of anthropogenic CO2. Fluxes of CO2 between the atmosphere and surface ocean are regulated by a number of physical and biogeochemical processes, resulting in a spatiotemporally heterogeneous CO2 distribution. Determining the influence of each individual process is useful for interpreting marine carbonate system observations, and is also necessary to investigate how changes in these drivers could affect air-sea CO2 exchange. Biogeochemical processes exert an influence primarily through modifying seawater dissolved inorganic carbon (CT) and total alkalinity (AT), thus changing the seawater partial pressure of CO2 (psw). Here, we propose a novel conceptual framework through which the size of the CO2 source or sink generated by any biogeochemical process, denoted Φ, can be evaluated. This is based on the ‘isocapnic quotient’ (Q), which defines the trajectory through (AT,CT) phase space for which there is no change in psw. We discuss the limitations and uncertainties inherent in this technique, which are negligible for most practical purposes, and its links with existing, related approaches. We investigate the effect on Φ of spatiotemporal heterogeneity in Q in the present day surface ocean for several key biogeochemical processes. This leads the magnitude of the CO2 source or sink generated by processes that modify AT to vary spatiotemporally. Finally, we consider how the strength of each process as a CO2 source or sink may change in a warmer, higher-CO2 future ocean
Li astrophysical S factors from the no-core shell model with continuum

International audienceThe 3He(α,γα,γ)7Be and 3H(α,γα,γ)7Li astrophysical S factors are calculated within the no-core shell model with continuum using a renormalized chiral nucleon–nucleon interaction. The 3He(α,γα,γ)7Be astrophysical S factors agree reasonably well with the experimental data while the 3H(α,γα,γ)7Li ones are overestimated. The seven-nucleon bound and resonance states and the α + 3He/3H elastic scattering are also studied and compared with experiment. The low-lying resonance properties are rather well reproduced by our approach. At low energies, the s-wave phase shift, which is non-resonant, is overestimated
Altered Backbone and Side-Chain Interactions Result in Route Heterogeneity during the Folding of Interleukin-1b (IL-1b)

Deletion of the b-bulge trigger-loop results in both a switch in the preferred folding route, from the functional loop
packing folding route to barrel closure, as well as conversion of the agonist activity of IL-1b into antagonist activity. Conversely,
circular permutations of IL-1b conserve the functional folding route as well as the agonist activity. These two extremes in the
folding-functional interplay beg the question of whether mutations in IL-1b would result in changes in the populations of heterogeneous
folding routes and the signaling activity. A series of topologically equivalent water-mediated b-strand bridging interactions
within the pseudosymmetric b-trefoil fold of IL-1b highlight the backbone water interactions that stabilize the secondary and
tertiary structure of the protein. Additionally, conserved aromatic residues lining the central cavity appear to be essential for both
stability and folding. Here, we probe these protein backbone-water molecule and side chain-side chain interactions and the role
they play in the folding mechanism of this geometrically stressed molecule. We used folding simulations with structure-based
models, as well as a series of folding kinetic experiments to examine the effects of the F42W core mutation on the folding landscape
of IL-1b. This mutation alters water-mediated backbone interactions essential for maintaining the trefoil fold. Our results
clearly indicate that this perturbation in the primary structure alters a structural water interaction and consequently modulates the
population of folding routes accessed during folding and signaling activity
RNA interference by single- and double-stranded siRNA with a DNA extension containing a 3' nuclease-resistant mini-hairpin structure

YesSelective gene silencing by RNA interference (RNAi) involves double-stranded small interfering RNA (ds siRNA) composed of single-stranded (ss) guide and passenger RNAs. siRNA is recognized and processed by Ago2 and C3PO, endonucleases of the RNA-induced silencing complex (RISC). RISC cleaves passenger RNA, exposing the guide RNA for base-pairing with its homologous mRNA target. Remarkably, the 3′ end of passenger RNA can accommodate a DNA extension of 19-nucleotides without loss of RNAi function. This construct is termed passenger-3′-DNA/ds siRNA and includes a 3′-nuclease-resistant mini-hairpin structure. To test this novel modification further, we have now compared the following constructs: (I) guide-3′-DNA/ds siRNA, (II) passenger-3′-DNA/ds siRNA, (III) guide-3′-DNA/ss siRNA, and (IV) passenger-3′-DNA/ss siRNA. The RNAi target was SIRT1, a cancer-specific survival factor. Constructs I–III each induced selective knock-down of SIRT1 mRNA and protein in both noncancer and cancer cells, accompanied by apoptotic cell death in the cancer cells. Construct IV, which lacks the SIRT1 guide strand, had no effect. Importantly, the 3′-DNA mini-hairpin conferred nuclease resistance to constructs I and II. Resistance required the double-stranded RNA structure since single-stranded guide-3′-DNA/ss siRNA (construct III) was susceptible to serum nucleases with associated loss of RNAi activity. The potential applications of 3′-DNA/siRNA constructs are discussed.Gol
Diffusion for holographic lattices.

We consider black hole spacetimes that are holographically dual to strongly coupled field theories in which spatial translations are broken explicitly. We discuss how the quasinormal modes associated with diffusion of heat and charge can be systematically constructed in a long wavelength perturbative expansion. We show that the dispersion relation for these modes is given in terms of the thermoelectric DC conductivity and static susceptibilities of the dual field theory and thus we derive a generalised Einstein relation from Einstein’s equations. A corollary of our results is that thermodynamic instabilities imply specific types of dynamical instabilities of the associated black hole solutions
Remarks on the Taub-NUT solution in Chern–Simons modified gravity

We construct a generalization of the AdS charged rotating black holes with two equal magnitude angular momenta in five-dimensional minimal gauged supergravity. In addition to the mass, electric charge and angular momentum, the new solutions possess an extra-parameter associated with a non-zero magnitude of the magnetic potential at infinity. In contrast with the known cases, these new black holes possess a non-trivial zero-horizon size limit which describes a one parameter family of spinning charged solitons. All configurations reported in this work approach asymptotically an AdS(5) spacetime in global coordinates and are free of pathologies
Bibliometric tools: Evaluation, mapping

Bibliometrics is a relatively young discipline, with clear antecedents in the 1920s and a boom since the 1960s, when the name was first coined. There is a constellation of terms denoting the statistical study of (the flux of) information, most of which are used in an indiscriminate manner, as virtual synonyms. Terms such as informetrics, bibliometrics, scientometrics, webometrics, altmetrics, netometrics or cybermetrics place the focus on different approaches and/or (sub)domains of this huge research field. Thus, informetrics might be considered the umbrella term that refers to the flow of any sort of information in any mode, whereas bibliometrics restricts its interest to published information, and scientometrics focuses on the way academic/scientific information flows. Webometrics, netometrics and cybermetrics obviously study the particular conditions of exchange of information on the Internet. Altmetrics, finally, focuses on the potentialities of social media and academic social networks and tries to downplay the role played by international indexes and citation counting. Here we will use bibliometrics as our blanket term due to its focus on published information and its broad usage