cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Quantum Mpemba effect in a quantum dot with reservoirs
Creators: name: Chatterjee, Amit Kumar
name: Takada, Satoshi
name: Hayakawa, Hisao
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate the quantum Mpemba effect in a quantum dot coupled to two reservoirs, described by the Anderson model. We show that the system temperatures starting from two different initial values (hot and cold), cross each other at finite time (and thereby reverse their identities i.e. hot becomes cold and vice versa) to generate thermal quantam Mpemba effect. The slowest relaxation mode believed to play the dominating role in Mpemba effect in Markovian systems, does not contribute to such anomalous relaxation in the present model. In this connection, our analytical result provides necessary condition for producing quantum Mpemba effect in the density matrix elements of the quantum dot, as a combined effect of the remaining relaxation modes.
description: 14 pages, 9 figures
Krüppel-Like Transcription Factor KLF1 Is Required for Optimal γ- and β-Globin Expression in Human Fetal Erythroblasts
Creators: name: Mohamad, Safa F.
name: Williams, David C.
name: Amin, Parth
name: Lloyd, Joyce A.
name: Vinjamur, Divya S.
name: Alhashem, Yousef N.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: In human adult erythroid cells, lower than normal levels of Krüppel-like transcription factor 1 (KLF1) are generally associated with decreased adult β- and increased fetal γ-globin gene expression. KLF1 also regulates BCL11A, a known repressor of adult γ-globin expression. In seeming contrast to the findings in adult cells, lower amounts of KLF1 correlate with both reduced embryonic and reduced fetal β-like globin mRNA in mouse embryonic erythroid cells. The role of KLF1 in primary human fetal erythroid cells, which express both γ- and β-globin mRNA, is less well understood. Therefore, we studied the role of KLF1 in ex vivo differentiated CD34+ umbilical cord blood cells (UCB erythroblasts), representing the fetal milieu. In UCB erythroblasts, KLF1 binds to the β-globin locus control region (LCR), and the β-globin promoter. There is very little KLF1 binding detectable at the γ-globin promoter. Correspondingly, when cultured fetal UCB erythroblasts are subjected to lentiviral KLF1 knockdown, the active histone mark H3K4me3 and RNA pol II recruitment are diminished at the β- but not the γ-globin gene. The amount of KLF1 expression strongly positively correlates with β-globin mRNA and weakly positively correlates with BCL11A mRNA. With modest KLF1 knockdown, mimicking haploinsufficiency, γ-globin mRNA is increased in UCB erythroblasts, as is common in adult cells. However, a threshold level of KLF1 is evidently required, or there is no absolute increase in γ-globin mRNA in UCB erythroblasts. Therefore, the role of KLF1 in γ-globin regulation in fetal erythroblasts is complex, with both positive and negative facets. Furthermore, in UCB erythroblasts, diminished BCL11A is not sufficient to induce γ-globin in the absence of KLF1. These findings have implications for the manipulation of BCL11A and/or KLF1 to induce γ-globin for therapy of the β-hemoglobinopathies.
Resolution of 100 photons and quantum generation of unbiased random numbers
Creators: name: Eaton, Miller
name: Hossameldin, Amr
name: Birrittella, Richard J.
name: Alsing, Paul M.
name: Gerry, Christopher C.
name: Dong, Hai
name: Cuevas, Chris
name: Pfister, Olivier
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Macroscopic quantum phenomena, such as observed in superfluids and superconductors, have led to promising technological advancements and some of the most important tests of fundamental physics. At present, quantum detection of light is mostly relegated to the microscale, where avalanche photodiodes are very sensitive to distinguishing single-photon events from vacuum but cannot differentiate between larger photon-number events. Beyond this, the ability to perform measurements to resolve photon numbers is highly desirable for a variety of quantum information applications including computation, sensing, and cryptography. True photon-number resolving detectors do exist, but they are currently limited to the ability to resolve on the order of 10 photons, which is too small for several quantum state generation methods based on heralded detection. In this work, we extend photon measurement into the mesoscopic regime by implementing a detection scheme based on multiplexing highly quantum-efficient transition-edge sensors to accurately resolve photon numbers between zero and 100. We then demonstrate the use of our system by implementing a quantum random number generator with no inherent bias. This method is based on sampling a coherent state in the photon-number basis and is robust against environmental noise, phase and amplitude fluctuations in the laser, loss and detector inefficiency as well as eavesdropping. Beyond true random number generation, our detection scheme serves as a means to implement quantum measurement and engineering techniques valuable for photonic quantum information processing.
description: 16 pages, 9 figures
Multi-$Q$ magnetic phases from frustration and chiral interactions
Creators: name: Georgiou, Marios
name: Rousochatzakis, Ioannis
name: Betouras, Joseph J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the effect of Dzyaloshinskii-Moriya (DM) interactions in the planar pyrochlore (checkerboard) antiferromagnet, one of the paradigmatic models of spin frustration, and establish the classical phase diagram using a combination of analytical and numerical approaches. While anisotropic interactions generally tend to remove the frustration, here we show that a high degree of frustration survives in a large region of the phase diagram. In conjunction with the fixed handedness introduced by the DM anisotropy, this spawns a cascade of incommensurate and double-twisted multi-domain phases, consisting of spatially intertwined domains of the underlying competing phases of the isotropic frustrated point. The results underpin a novel mechanism of generating multi-Q phases in systems that combine high degree of frustration and chiral interactions.
description: 23 pages, 14 figures
Probing Effective Loop Quantum Gravity on Weak Gravitational Lensing, Hawking Radiation and Bounding Greybody Factor by Black Holes
Creators: name: Javed, Wajiha
name: Atique, Mehak
name: Övgün, Ali
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we study the weak deflection angle of black hole in effective loop quantum gravity using the geometrical technique used by Gibbons and Werner. We first derive the optical metric, calculate the Gaussian optical curvature, and then apply the Gauss-Bonnet theorem. We then also investigate the effect of plasma and dark matter mediums on the weak deflection angle. We show that increasing the impact of these two mediums grows the deflection angle. We also calculate the Hawking temperature via Gauss-Bonnet theorem. In addition, we determine the fermionic greybody bounds. Moreover, we discuss the graphical behaviour of the deflection angle and bounds on the greybody factor. Graphically, we observe that taking $0 < A_λ < 1$ angle ranges from negative values to maximum values and also attain maximum value for these values of $ A_λ$ and for $A_λ \geq 1$ exponentially approaches to zero. Later, we graphically investigate that the greybody factor bound exhibits the convergent behaviour by converging to $1$. We also examine that the results obtained for the black hole in effective loop quantum gravity are reduced to the Schwarzschild black hole solutions when the dimensionless non-negative parameter is equal to zero $A_λ=0$.
description: 23 pages, version accepted for publication in General Relativity and Gravitation volume
Single photon optical bistability
Creators: name: Protsenko, Igor E.
name: Uskov, Alexander V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the bistability in a small Fabry-Perot interferometer (FPI) with the optical wavelength size cavity, the nonlinear Kerr medium and only a few photons, on average, excited by the external quantum field. Analytical expressions for the stationary mean photon number, the bistability domain, the field and the photon number fluctuation spectra are obtained. Multiple stationary states of the FPI cavity field with different spectra are possible at realistic conditions, for example, in the FPI with the photonic crystal cavity and the semiconductor-doped glass nonlinear medium.
description: 20 pages, 6 figures
Livestock-Associated, Antibiotic-Resistant Staphylococcus aureus Nasal Carriage and Recent Skin and Soft Tissue Infection among Industrial Hog Operation Workers
Creators: name: Heaney, Christopher D.
name: Hall, Devon
name: Carroll, Karen C.
name: Nadimpalli, Maya
name: Pisanic, Nora
name: Perl, Trish M.
name: Larsen, Jesper
name: Pierce, Elizabeth
name: Stewart, Jill R.
name: Tekle, Tsigereda
name: Love, David C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Swine production work is a risk factor for nasal carriage of livestock-associated (LA-) Staphylococcus aureus and also for skin and soft tissue infection (SSTI). However, whether LA-S. aureus nasal carriage is associated with increased risk of SSTI remains unclear. We aimed to examine S. aureus nasal carriage and recent (≤3 months prior to enrollment) SSTI symptoms among industrial hog operation (IHO) workers and their household contacts. IHO workers and their household contacts provided a nasal swab and responded to a questionnaire assessing self-reported personal and occupational exposures and recent SSTI symptoms. Nasal swabs were analyzed for S. aureus, including methicillin-resistant S. aureus (MRSA), multidrug-resistant-S. aureus (MDRSA), absence of scn (livestock association), and spa type. S. aureus with at least one indicator of LA was observed among 19% of 103 IHO workers and 6% of 80 household members. Prevalence of recent SSTI was 6% among IHO workers and 11% among 54 minor household members (0/26 adult household members reported SSTI). Among IHO workers, nasal carriers of MDRSA and scn-negative S. aureus were 8.8 (95% CI: 1.8, 43.9) and 5.1 (95% CI: 1.2, 22.2) times as likely to report recent SSTI as non-carriers, respectively. In one household, both an IHO worker and child reported recent SSTI and carried the same S. aureus spa type (t4976) intranasally. Prevalence of scn-negative S. aureus (PR: 5.0, 95% CI: 1.2, 21.4) was elevated among IHO workers who reported never versus always wearing a face mask at work. Although few SSTI were reported, this study of IHO workers and their household contacts is the first to characterize a relation between nasal carriage of antibiotic-resistant LA-S. aureus and SSTI. The direction and temporality of this relation and IHO workers’ use of face masks to prevent nasal carriage of these bacteria warrant further investigation.
Baena antiqua Lambe 1902
Creators: name: Lambe L., M.
Publisher: name: Zenodo
Year: 1902
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Testudines
Baenidae
Baena
Baena antiqua

description: Baëna antiqua. Sp. nov. Part of the carapace of an apparently uu described species of Ba'ena was obtained from Red Deer river, below Berry creek, in 1901. Near it was found the anterior end of a plastron that, judging from the surface markings, thickness of the shell, general appearance and size, evidently belongs to the same species and probably to the same individual. What is preserved of the carapace (figure 10, A) is in an excellent state of preservation. Five neurals in all are represented with five pairs of costals. The sutures are sinuous and fine but can be traced with ease. The sulci are very distinct. rather irregular in shape and of nearly equal size. The costals partake of the same irregularity of outline. The outer surface is almost smooth, the only unevenness being due to a few striations and depressed, roughened markings erratically disposed. Striationsalso occtir at right angles to the sutures, forming an obscure border sculpture. The vertebral shields are broader than long, more especially the first one. The rib-heads are well developed. There is a strong and abrupt thickening iu the axillary region but elsewhere the shell is thin. The anterior border is evenly- rounded. * Report U. S. Geol. Surv. Terrs., 1S73. vol. i. Fossil Vertebrates, pi xv, figs. 1 -5. The front end of the plastron (figs. 10, B and 0) is rather broad in proportion to the length of its component parts of which the epiplastrals, the entoplastral and small portions of the hyoplastrals are preserved. The entoplastral, seen from below is diamond shaped, a little broader than long, and placed far forward on account of the shortness of the suture between the epiplastrals in front. Seen from above, or within, the entoplastral is much longer than broad, its breadth being reduced and its posterior half prolonged backward. Similar extensions of the posterior border also occur in the upper surface of the epiplastrals. Sulci, as indicated in the figure, define the boundaries of thegular and intergular shields. Other fragments, in the collection, may help to further elucidate the structure of the shell of this species. Belly Eiver series; below the mouth of Berry creek. Red Deer river, 1901. [table omitted] Belly River series, Red Deer river, 1901.
description: Published as part of Lambe L. M., 1902, New genera and species from the Belly River Series (mid-Cretaceous), pp. 25-81 in Geological Survey of Canada Contributions to Canadian Palaeontology 3 on pages 44-45, DOI: 10.5281/zenodo.3233762
Origin of the repulsive Casimir force in giant polarization-interconversion materials
Creators: name: Li, Zhou
name: Khandekar, Chinmay
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Achieving strong repulsive Casimir forces through engineered coatings can pave the way for micro- and nano-electromechanical applications where adhesive forces currently cause reliability issues. Here, we exploit Lifshitz theory to identify the requirements for repulsive Casimir forces in gyrotropic media for two limiting cases (ultra-strong gyroelectric and non-gyroelectric). We show that the origin of repulsive force in media with strong gyrotropy such as Weyl semi-metals arises from the giant interconversion of polarization of vacuum fluctuations.
description: 9 pages, 4 figures
Approaching Many-Body Localization from Disordered Luttinger Liquids via the Functional Renormalization Group
Creators: name: Karrasch, C.
name: Moore, J. E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the interplay of interactions and disorder in a one-dimensional fermion lattice coupled adiabatically to infinite reservoirs. We employ both the functional renormalization group (FRG) as well as matrix product state techniques, which serve as an accurate benchmark for small systems. Using the FRG, we compute the length- and temperature-dependence of the conductance averaged over $10^4$ samples for lattices as large as $10^{5}$ sites. We identify regimes in which non-ohmic power law behavior can be observed and demonstrate that the corresponding exponents can be understood by adapting earlier predictions obtained perturbatively for disordered Luttinger liquids. In presence of both disorder and isolated impurities, the conductance has a universal single-parameter scaling form. This lays the groundwork for an application of the functional renormalization group to the realm of many-body localization.
DATA MANAGEMENT AND DATA ANALYSIS FOR SUSTAINABLE DEVELOPMENT: A PSYCHOMETRIC PERSPECTIVE
Creators: name: Abidogun, Moruf Adebayo
name: Richard, Udofia I.G.
name: Mumuni, Malik Adekunle
Publisher: name: figshare
Year: 2022
Subjects: subject: 170110 Psychological Methodology, Design and Analysis
subject: FOS: Psychology

description: This study investigated role of data management and data analysis on Sustainable development. Three testable hypotheses were formulated to guide this study. The correlation research design was used for this work as the population of study for this work is all staff in tertiary institutions in Lagos State, while the target population is staff of LASU and AOCOED respectively. A total of 100 staff from both institutions make the sample for the study as 50 respondents each was selected from both institutions (Academic and non academic staff). A self structured 20-items Questionnaire on a 4-point scale developed to generate information. The instrument was affirmed to meet both content and face validity while a reliability index of 0.872 was affirmed. The data was analysed using Pearson Product Moment Correlation and tested at 0.05 level of significant. The findings revealed that there exists a significant relationship between effective data management, data analysis and staff categorization on sustainable development. The study then concluded that Government's lackadaisical attitude towards data management should change so that they can begin to see the positives attached to effective data management. It then recommended that Stakeholders should welcome the advancement of psychometrics in human related activities as virtually all activities we engage in psychological, social, occupational and economically driven. 
cuHARM : a new GPU accelerated GR-MHD code and its application to ADAF disks
Creators: name: Bégué, Damien
name: Pe'er, Asaf
name: Zhang, Guoqiang
name: Zhang, BinBin
name: Pevzner, Benjamin
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We introduce a new GPU-accelerated general-relativistic magneto-hydrodynamic (GR-MHD) code based on HARM which we call cuHARM. The code is written in CUDA-C and uses OpenMP to parallelize multi-GPU setups. Our code allows us to run high resolution simulations of accretion disks and the formation and structure of jets without the need of multi-node supercomputer infrastructure. A $256^3$ simulation is well within the reach of an Nvidia DGX-V100 server, with the computation being a factor about 10 times faster if only the CPU was used. We use this code to examine several disk structures all in the SANE state. We find that: (i) increasing the magnetic field, while in the SANE state does not affect the mass accretion rate; (ii) Simultaneous increase of the disk size and the magnetic field, while keeping the ratio of energies fixed, lead to the destruction of the jet once the magnetic flux through the horizon decrease below a certain limit. This demonstrates that the existence of the jet is not a linear function of the initial magnetic field strength; (iii) the structure of the jet is a weak function of the adiabatic index of the gas, with relativistic gas tend to have a wider jet.
description: 33 pages, 16 figures, submitted to ApJ
Near-Infrared 3D Imaging with Upconversion Detection
Creators: name: Zhang, He
name: Kumar, Santosh
name: Sua, Yong Meng
name: Zhu, Shenyu
name: Huang, Yu-Ping
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate a photon-sensitive, three-dimensional camera by active near-infrared illumination and fast time-of-flight gating. It uses pico-second pump pulses to selectively up-convert the backscattered photons according to their spatiotemporal modes via sum-frequency generation in a \c{hi}2 nonlinear crystal, which are then detected by electron-multiplying CCD with photon sensitive detection. As such, it achieves sub-millimeter depth resolution, exceptional noise suppression, and high detection sensitivity. Our results show that it can accurately reconstruct the surface profiles of occluded targets placed behind highly scattering and lossy obscurants of 14 optical depth (round trip), using only milliwatt illumination power. This technique may find applications in biomedical imaging, environmental monitoring, and wide-field light detection and ranging
description: 8 pages, 7 figures
DATA MANAGEMENT AND DATA ANALYSIS FOR SUSTAINABLE DEVELOPMENT: A PSYCHOMETRIC PERSPECTIVE
Creators: name: Abidogun, Moruf Adebayo
Publisher: name: figshare
Year: 2022
Subjects: subject: 170110 Psychological Methodology, Design and Analysis
subject: FOS: Psychology

description: This study investigated role of data management and data analysis on Sustainable development. Three testable hypotheses were formulated to guide this study. The correlation research design was used for this work as the population of study for this work is all staff in tertiary institutions in Lagos State, while the target population is staff of LASU and AOCOED respectively. A total of 100 staff from both institutions make the sample for the study as 50 respondents each was selected from both institutions (Academic and non academic staff). A self structured 20-items Questionnaire on a 4-point scale developed to generate information. The instrument was affirmed to meet both content and face validity while a reliability index of 0.872 was affirmed. The data was analysed using Pearson Product Moment Correlation and tested at 0.05 level of significant. The findings revealed that there exists a significant relationship between effective data management, data analysis and staff categorization on sustainable development. The study then concluded that Government's lackadaisical attitude towards data management should change so that they can begin to see the positives attached to effective data management. It then recommended that Stakeholders should welcome the advancement of psychometrics in human related activities as virtually all activities we engage in psychological, social, occupational and economically driven. 
Quantization of the anisotropic conformal Horava theory
Creators: name: Bellorin, Jorge
name: Borquez, Claudio
name: Droguett, Byron
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We perform the Batalin-Fradkin-Vilkovisky quantization of the anisotropic conformal Horava theory in d spatial dimensions. We introduce a model with a conformal potential suitable for any dimension. We define an anisotropic and local gauge-fixing condition that accounts for the spatial diffeomorphisms and the anisotropic Weyl transformations. We show that the BRST transformations can be expressed mainly in terms of a spatial diffeomorphism along a ghost field plus a conformal transformation with another ghost field as argument. We study the quantum Lagrangian in the d=2 case, obtaining that all propagators are regular, except for the fields associated with the measure of the second-class constraints. This behavior is qualitatively equal to the nonconformal case.
Champsosaurus annectens Cope 1876
Creators: name: Lambe L., M.
Publisher: name: Zenodo
Year: 1902
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Sauropsida
Choristodera
Champsosauridae
Champsosaurus
Champsosaurus annectens

description: Champsosaurus annectens, Cope. Vertebrre, Leidy. 1860. Trans. Amer. Philos. Soc. Extinct Vertebrata from the Judith river and Great Lignite formations of Nebraska, p. 147, pi. 9, figs. 56-61. Champsosaurus annectens, Cope. 1876. Proc. Acad. Nat. Sci. Philadel., p. 351 This species, the type of the genus, is represented by a large number of vertebrae, none of which were found together in their proper relative positions, but in a few in- stances, a number, collected within limited areas, may represent incomplete series. . The vertebrae consist of cervicals, dorsals, caudals and some from the sacral region. The anterior dorsals are keeled below, in the dorsal series the angularity gives way to a rounded lower surface, the sacrals are depressed and the caudals, early in their series, become laterally compressed. The posterior, inferior ends of the caudal centra present facets for chevron bones; in one anterior caudal, in particular, they are conspicuous with a pronounced enlargement of the centrum in their vicinity. In most of the dorsal vertebra3 the neural arches have become detached, in the caudals the base at least is generally intact. The zygapophyses are well developed. The articular faces of the centra in the caudals are slightly concave, those of the dorsals are plane. There is a considerable variation in the size of the vertebraj. It is altogether probable that more than one species is represented. The following measurements in mm. are taken from a number of centra found with others within a limited area: [table omitted] A large dorsal from Mackay creek has the following dimensions: length of centrum, 27'0 mm., height of articular face, 220 mm., breadth of articular face, 23"0 mm. Ghampsosattrus is known, also, by comparatively complete skeletons from the Lower Eocene of Rheiras, France, and Erqueliuues, Belgium. Belly Eiver series. Red Deer river, 1897, 1898 and 1901. Vertebrae were collected at Mackay creek.near "Walsh station on the line of the C. P. R., in 1880, by Professor John Macoun; on Belly river, N. W. T. (Nos 40 and 41), in 1881, by Dr. G-. M. Dawson: and at Ross coulee, near Irvine station, by Mr. T. 0. Weston, in 1884.
description: Published as part of Lambe L. M., 1902, New genera and species from the Belly River Series (mid-Cretaceous), pp. 25-81 in Geological Survey of Canada Contributions to Canadian Palaeontology 3 on pages 45-46, DOI: 10.5281/zenodo.3233762
Low Heart Rate Variability in a 2-Minute Electrocardiogram Recording Is Associated with an Increased Risk of Sudden Cardiac Death in the General Population: The Atherosclerosis Risk in Communities Study
Creators: name: Alonso, Alvaro
name: Chen, Lin Y.
name: Maheshwari, Ankit
name: Soliman, Elsayed Z.
name: Whitse, Eric A.
name: Norby, Faye L.
name: Adabag, Selcuk
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Low heart rate variability (HRV) has been linked to increased total mortality in the general population; however, the relationship between low HRV and sudden cardiac death (SCD) is less well-characterized. The goal of this study was to evaluate the relationship between low HRV and SCD in a community-based cohort. Our cohort consisted of 12,543 participants from the Atherosclerosis Risk in Communities (ARIC) study. HRV measures were derived from 2-minute electrocardiogram recordings obtained during the baseline exam (1987–89). Time domain measurements included the standard deviation of all normal RR intervals (SDNN) and the root mean squared successive difference (r-MSSD). Frequency domain measurements included low frequency power (LF) and high frequency (HF) power. During a median follow-up of 13 years, 215 SCDs were identified from physician adjudication of all coronary heart disease deaths through 2001. In multivariable adjusted Cox proportional hazards models, each standard deviation decrement in SDNN, LF, and HF were associated with 24%, 27% and 16% increase in SCD risk, respectively. Low HRV is independently associated with increased risk of SCD in the general population.
Mode stability for the Teukolsky equations on Kerr-anti-de Sitter spacetimes
Creators: name: Graf, Olivier
name: Holzegel, Gustav
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove that there are no non-stationary (with respect to the Hawking vectorfield) real mode solutions to the Teukolsky equations on all $(3+1)$-dimensional subextremal Kerr-anti-de Sitter spacetimes. We further prove that stationary solutions do not exist if the black hole parameters satisfy the Hawking-Reall bound and $\left|a\sqrt{-Λ}\right|<\frac{\sqrt{3}}{20}$. We conclude with the statement of mode stability which preludes boundedness and decay estimates for general solutions which will be proven in a separate paper. Our boundary conditions are the standard ones which follow from fixing the conformal class of the metric at infinity and lead to a coupling of the two Teukolsky equations. The proof relies on combining the Teukolsky-Starobinsky identities with the coupled boundary conditions. In the stationary case the proof exploits elliptic estimates which fail if the Hawking-Reall bound is violated. This is consistent with the superradiant instabilities expected in that regime.
description: 30 pages, 4 figures. A Mathematica notebook containing all the computations is attached as ancillary file. v2 includes Teukolsky-Starobinsky conservation laws and a comparison with the asymptotically flat case
Detection of interactions via generalized factorial cumulants in systems in and out of equilibrium
Creators: name: Stegmann, Philipp
name: Sothmann, Björn
name: Hucht, Alfred
name: König, Jürgen
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We introduce time-dependent, generalized factorial cumulants $C_s^m(t)$ of the full counting statistics of electron transfer as a tool to detect interactions in nanostructures. The violation of the sign criterion $(-1)^{m-1} C^m_s(t)\ge0$ for \emph{any} time $t$, order $m$, and parameter $s$ proves the presence of interactions. For given system parameters, there is a minimal time span $t_\text{min}$ and a minimal order $m$ to observe the violation of the sign criterion. We demonstrate that generalized factorial cumulants are more sensitive to interactions than ordinary ones and can detect interactions even in regimes where ordinary factorial cumulants fail. We illustrate our findings with the example of a quantum dot tunnel coupled to electronic reservoirs either in or out of equilibrium.
description: 7 pages manuscript
M$^3$Care: Learning with Missing Modalities in Multimodal Healthcare Data
Creators: name: Zhang, Chaohe
name: Chu, Xu
name: Ma, Liantao
name: Zhu, Yinghao
name: Wang, Yasha
name: Wang, Jiangtao
name: Zhao, Junfeng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Multimodal electronic health record (EHR) data are widely used in clinical applications. Conventional methods usually assume that each sample (patient) is associated with the unified observed modalities, and all modalities are available for each sample. However, missing modality caused by various clinical and social reasons is a common issue in real-world clinical scenarios. Existing methods mostly rely on solving a generative model that learns a mapping from the latent space to the original input space, which is an unstable ill-posed inverse problem. To relieve the underdetermined system, we propose a model solving a direct problem, dubbed learning with Missing Modalities in Multimodal healthcare data (M3Care). M3Care is an end-to-end model compensating the missing information of the patients with missing modalities to perform clinical analysis. Instead of generating raw missing data, M3Care imputes the task-related information of the missing modalities in the latent space by the auxiliary information from each patient's similar neighbors, measured by a task-guided modality-adaptive similarity metric, and thence conducts the clinical tasks. The task-guided modality-adaptive similarity metric utilizes the uncensored modalities of the patient and the other patients who also have the same uncensored modalities to find similar patients. Experiments on real-world datasets show that M3Care outperforms the state-of-the-art baselines. Moreover, the findings discovered by M3Care are consistent with experts and medical knowledge, demonstrating the capability and the potential of providing useful insights and explanations.
description: 9 pages
On the asymptotic growth of Bloch-Kato-Shafarevich-Tate groups of modular forms over cyclotomic extensions
Creators: name: Lei, Antonio
name: Loeffler, David
name: Zerbes, Sarah
Publisher: name: arXiv
Year: 2015
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11R18, 11F11, 11R23 (primary), 11F85 (secondary)

description: We study the asymptotic behaviour of the Bloch-Kato-Shafarevich-Tate group of a modular form f over the cyclotomic Zp-extension of Q under the assumption that f is non-ordinary at p. In particular, we give upper bounds of these groups in terms of Iwasawa invariants of Selmer groups defined using p-adic Hodge Theory. These bounds have the same form as the formulae of Kobayashi, Kurihara and Sprung for supersingular elliptic curves.
description: To appear in Canad. J. Math
Malaria in HIV-Infected Children Receiving HIV Protease-Inhibitor- Compared with Non-Nucleoside Reverse Transcriptase Inhibitor-Based Antiretroviral Therapy, IMPAACT P1068s, Substudy to P1060
Creators: name: Nonde, Thikazi
name: Phakati, Severiano
name: Kafulafula, George
name: Simbeye, Darius
name: Mbewe, Felistas
name: Balamusani, David
name: Tegha, Gerald
name: Mwale, John
name: Chen, Jingyang
name: Neal, Jillian
name: Parikh, Sunil
name: Kafufu, Bosco
name: Duffy, Patrick E.
name: Chintu, Namwinga
name: Nunkwe, Esnart Mwaba
name: Kamthunzi, Portia
name: Elbireer, Ali
name: Ilmet, Tiina
name: Shingalili, Ellen
name: Palumbo, Paul
name: Kirmse, Brian
name: Gabriel, Erin E.
name: Philippe, Patrick Jean
name: Mofenson, Lynne
name: Musoke, Philippa
name: Barlow-Mosha, Linda
name: Borkowsky, William
name: Tauzie, Jean
name: Sambo, Pauline
name: Chi, Benjamin H.
name: Prescott, William
name: Hobbs, Charlotte V.
name: Deygoo, Nagamah
name: Li, Yonghua
name: Petzold, Elizabeth
name: Kabugho, Enid
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: HIV and malaria geographically overlap. HIV protease inhibitors kill malaria parasites in vitro and in vivo, but further evaluation in clinical studies is needed.
Localization of binary neutron star mergers with a single Cosmic Explorer
Creators: name: Baral, Pratyusava
name: Morisaki, Soichiro
name: Hernandez, Ignacio Magaña
name: Creighton, Jolien D. E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Next-generation ground-based gravitational-wave detectors, such as Cosmic Explorer (CE), are expected to be sensitive to gravitational-wave signals with frequencies as low as 5 Hz, allowing signals to spend a significant amount of time in the detector frequency band. As a result, the effects caused by the rotation of the Earth become increasingly important for such signals. Additionally, the length of the arms of these detectors can be comparable to the wavelength of detectable gravitational waves, which introduces frequency-dependent effects that are not significant in current-generation detectors. These effects are expected to improve the ability to localize compact binary coalescences in the sky even when using only one detector. This study aims to understand how much these effects can help in localization. We present the first comprehensive Bayesian parameter estimation framework that accounts for all these effects using \textsc{Bilby}, a commonly used Bayesian parameter estimation tool. We focus on sky localization constraints for binary neutron star events with an optimal signal-to-noise ratio of 1000 with one detector at the projected CE sensitivity. We find that these effects help localize sources using one detector with sky areas as low as 10 square degrees. Moreover, we explore and discuss how ignoring these effects in the parameter estimation can lead to biases in the inference.
description: Version accepted by PRD
Interface dynamics of a metastable mass-conserving spatially extended diffusion
Creators: name: Berglund, Nils
name: Dutercq, Sébastien
Publisher: name: arXiv
Year: 2015
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60J60, 60K35 (primary), 82C21, 82C24 (secondary)

description: We study the metastable dynamics of a discretised version of the mass-conserving stochastic Allen-Cahn equation. Consider a periodic one-dimensional lattice with $N$ sites, and attach to each site a real-valued variable, which can be interpreted as a spin, as the concentration of one type of metal in an alloy, or as a particle density. Each of these variables is subjected to a local force deriving from a symmetric double-well potential, to a weak ferromagnetic coupling with its nearest neighbours, and to independent white noise. In addition, the dynamics is constrained to have constant total magnetisation or mass. Using tools from the theory of metastable diffusion processes, we show that the long-term dynamics of this system is similar to a Kawasaki-type exchange dynamics, and determine explicit expressions for its transition probabilities. This allows us to describe the system in terms of the dynamics of its interfaces, and to compute an Eyring-Kramers formula for its spectral gap. In particular, we obtain that the spectral gap scales like the inverse system size squared.
description: 37 pages, 11 figures
A 2D-programmable and Scalable Reconfigurable Intelligent Surface Remotely Controlled via Digital Infrared Code
Creators: name: Sayanskiy, Andrey
name: Belov, Andrey
name: Yafasov, Ruslan
name: Lyulyakin, Andrey
name: Sherstobitov, Alexander
name: Glybovski, Stanislav
name: Lyashev, Vladimir
Publisher: name: arXiv
Year: 2022
Subjects: subject: Signal Processing (eess.SP)
subject: Applied Physics (physics.app-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Physical sciences

description: Reconfigurable Intelligent Surfaces (RISs) are promising and relatively low-cost tools for improving signal propagation in wireless communications. An RIS assists a base station in optimizing the channel and maximizing its capacity by dynamically manipulating with reflected field. Typically, RISs are based on dynamically reconfigurable reflectarrays, i.e. two-dimensional arrays of passive patch antennas, individually switchable between two or more reflection phases. Different communication scenarios and environments require RISs to provide a different spatial resolution of reflected field patterns, which depends on the aperture dimensions and the number of patches. Here we demonstrate a 1-bit RIS for 5-GHz Wi-Fi band made by assembling together multiple independently operating building blocks all powered by the same DC source. Each block contains four separately phase-switchable patch antennas with varactor diodes and a common microcontroller extracting digital control commands from modulated infrared light illuminating the entire RIS. Such distributed light-sensitive controllers grant the possibility of scaling the aperture by adding or removing blocks without re-designing any control circuitry. Moreover, in the proposed RIS a full 2D phase encoding capability is achieved along with a robust remote infrared control.
Stability of fixed points of Dirac structures
Creators: name: Singh, Karandeep Jandu
name: Zambon, Marco
Publisher: name: arXiv
Year: 2023
Subjects: subject: Symplectic Geometry (math.SG)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: primary 17B70, 53D17, secondary 8H15

description: Given an $L_{\infty}$-algebra $V$ and an $L_{\infty}$-subalgebra $W$, we give sufficient conditions for all small Maurer-Cartan elements of $V$ to be equivalent to Maurer-Cartan elements lying in $W$. As an application, we obtain a stability criterion for fixed points of a Dirac structure (for instance a twisted Poisson structure), i.e. points where the corresponding leaf is zero-dimensional. The criterion guarantees that any nearby Dirac structure also has a fixed point.
description: Final version, accepted for publication. 22 pages
Troodon formosus Leidy 1857
Creators: name: Lambe L., M.
Publisher: name: Zenodo
Year: 1902
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Reptilia
Dinosauria
Troodontidae
Troodon
Troodon formosus

description: Troödon formosus, Leidy. Troödon formosus, Leidy. 1857. Proc. Acad. Nat. Sci. Philadel., vol. viii, p. 72, and 1860, Trans. Amer. Philos. Soc. Extinct Vertebrata from tiie Judith river and Great Lignite formations of Nebraska, p. 147, pi. 9, figs. 53, 54 and 55. Two teeth from Red Deer river, below the mouth of Berry creek, agree with Leidy's type iu every essential particular and are evidently referable to his species. One of the specimens has eleven denticles on either side of its cutting edge and is slightly worn, near the apex, on its less convex side. The other has eleven denticles on one edge and is similarly worn near the top, but one or two serrations are broken oft near the base of the opposite edge so that nine only can be counted. The hollow bases of both teeth are imperfect below. Belly River series. Red Deer river, 1901. This species is placed provisionally with the Lacertilia.
description: Published as part of Lambe L. M., 1902, New genera and species from the Belly River Series (mid-Cretaceous), pp. 25-81 in Geological Survey of Canada Contributions to Canadian Palaeontology 3 on page 47, DOI: 10.5281/zenodo.3233762
Proposal for detecting the $π-$shifted Cooper quartet supercurrent
Creators: name: Mélin, Régis
name: Danneau, Romain
name: Winkelmann, Clemens B.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The multiterminal Josephson effect aroused considerable interest recently, in connection with theoretical and experimental evidence for correlations among Cooper pairs, that is, the so-called Cooper quartets. It was further predicted that the spectrum of Andreev bound states in such devices could host Weyl-point singularities. However, the relative phase between the Cooper pair and quartet supercurrents has not yet been addressed experimentally. Here, we propose an experiment involving four-terminal Josephson junctions with two independent orthogonal supercurrents, and calculate the critical current contours (CCCs) from a multiterminal Josephson junction circuit theory. We predict a generically $π$-shifted contribution of both the local or nonlocal second-order Josephson harmonics. Furthermore, we show that these lead to marked nonconvex shapes for the CCCs in zero magnetic field, where the dissipative state reenters into the superconducting one. Eventually, we discuss distinctive features of the non-local Josephson processes in the CCCs. The experimental observation of the latter could allow providing firm evidence of the $π$-shifted Cooper quartet current-phase relation.
description: Third revision: manuscript in final form
Der Gebrauch von "Unterstützter Kommunikation" und "Gestützter Kommunikation" an sonderpädagogischen Einrichtungen im Kanton Luzern In welchen sonderpädagogischen Einrichtungen im Kanton Luzern und mit welchem Störungsbild werden UK und FC wie regelmässig genutzt?
Creators: name: Noack, Aline
Publisher: name: Zenodo
Year: 2017
Subjects: Logopädie
Kommunikationshilfe
Sonderpädagogisches Zentrum
Bachelorarbeit

description: Viele Kinder oder Erwachsene können sich aufgrund von fehlender oder unzureichender Lautsprache oftmals nicht erfolgreich verständigen. Zur Unterstützung der Lautsprach dienen die Methoden der Unterstützten Kommunikation und der Gestützten Kommunikation. In der vorliegenden Arbeit wurde das Ziel verfolgt, herauszufinden, wie oft und mit welchen Störungsbildern die beiden Methoden an Sonderschulen des Kantons Luzern angewandt werden. Bei der Forschungsmethode handelt es sich um eine aggregierte Einzelfallstudie. Die Daten wurden anhand einer halbstandardisierten Befragung, mit zehn Personen, erhoben. Mittels quantitativer und qualitativer Analyse, wurde die Befragung ausgewertet. Den Antworten der Befragten zufolge, ist der Gebrauch von UK von der Institution sowie der Eigeninitiative abhängig. Die Befragten mit einer längeren Berufserfahrung an Sonderschulen, kennen mehr Kommunikationsformen als diejenigen, die erst seit kurzem an einer Sonderschule arbeiten.
Multi-messenger High-Energy Signatures of Decaying Dark Matter and the Effect of Background Light
Creators: name: Skrzypek, Barbara
name: Chianese, Marco
name: Delgado, Carlos Argüelles
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The IceCube Neutrino Observatory at the South Pole has measured astrophysical neutrinos using through-going and starting events in the TeV to PeV energy range. The origin of these astrophysical neutrinos is still largely unresolved, and among their potential sources could be dark matter decay. Measurements of the astrophysical flux using muon neutrinos are in slight tension with starting event measurements. This tension is driven by an excess observed in the energy range of 40-200 TeV with respect to the through-going expectation. Previous works have considered the possibility that this excess may be due to heavy dark matter decay and have placed constraints using gamma-ray and neutrino data. However, these constraints are not without caveats since they rely on the modeling of the astrophysical neutrino flux and the sources of gamma-ray emission. In this work, we derive background-agnostic galactic and extragalactic constraints on decaying dark matter by considering Tibet AS$_γ$ data, Fermi-LAT diffuse data, and the IceCube high-energy starting event sample. For the gamma-ray limits, we investigate the uncertainties on secondary emission from electromagnetic cascades during propagation arising from the unknown intensity of the extragalactic background light. We find that such uncertainties amount to a variation of up to $\sim 55\%$ in the gamma-ray limits derived with extragalactic data. Our results imply that a significant fraction of the astrophysical neutrino flux could be due to dark matter and that ruling it out depends on the assumptions on the gamma-ray and neutrino background. The latter depends on the yet unidentified sources.
description: 22 pages
Charged-Lepton Mixing and Lepton Flavor Violation
Creators: name: Guadagnoli, Diego
name: Lane, Kenneth
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a model for calculating charged-lepton mixing matrices. These matrices are an essential ingredient for predicting lepton flavor-violating rates in the lepton number nonuniversal models recently proposed to explain anomalies in B-meson decays. The model is based on work on "constrained flavor breaking" by Appelquist, Bai and Piai relating the charged-lepton mass matrix, M_l, to those for the up and down-type quarks, M_{u,d}. We use our recent model of lepton nonuniversality to illustrate the magnitudes of flavor-violating B-decay rates that might be expected. Decays with mu tau final states generally have the highest rates by far.
description: 13 pages, 1 figure. v3: predicted rates involving tau-leptons corrected for phase space; added textual comparison of our predictions with existing literature; other minor textual corrections. Matches journal version