cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Complications of Open Approaches to the Skull Base in the Endoscopic Era
Creators: name: Taylor, Robert J.
name: Ambrose, Emily C.
name: Laux, Jeffrey P.
name: Miller, Justin D.
name: Zanation, Adam M.
name: Ebert, Charles S.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Objective It is important to characterize the developing complication profile of the open approach as it becomes reserved for more complex disease during the endoscopic era. Our objective was to characterize complication rates of current open skull base surgery.
Stellamaris pergrata Mel. Fernandez & Bogarin 2018, comb. nov.
Creators: name: Bogarín, Diego
name: Karremans, Adam P.
name: Fernández, Melania
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Stellamaris
Stellamaris pergrata

description: Stellamaris pergrata (Ames) Mel.Fernández & Bogarín, comb. nov.
 Basionym: Pleurothallis pergrata Ames (1923: 24).
description: Published as part of Bogarín, Diego, Karremans, Adam P. & Fernández, Melania, 2018, Genus-level taxonomical changes in the Lepanthes affinity (Orchidaceae, Pleurothallidinae), pp. 128-136 in Phytotaxa 340 (2) on page 131, DOI: 10.11646/phytotaxa.340.2.2, http://zenodo.org/record/13718708
T-system on T-hook: Grassmannian Solution and Twisted Quantum Spectral Curve
Creators: name: Kazakov, Vladimir
name: Leurent, Sebastien
name: Volin, Dmytro
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We propose an efficient grassmannian formalism for solution of bi-linear finite-difference Hirota equation (T-system) on T-shaped lattices related to the space of highest weight representations of $gl(K_1,K_2|M)$ superalgebra. The formalism is inspired by the quantum fusion procedure known from the integrable spin chains and is based on exterior forms of Baxter-like Q-functions. We find a few new interesting relations among the exterior forms of Q-functions and reproduce, using our new formalism, the Wronskian determinant solutions of Hirota equations known in the literature. Then we generalize this construction to the twisted Q-functions and demonstrate the subtleties of untwisting procedure on the examples of rational quantum spin chains with twisted boundary conditions. Using these observations, we generalize the recently discovered, in our paper with N. Gromov, AdS/CFT Quantum Spectral Curve for exact planar spectrum of AdS/CFT duality to the case of arbitrary Cartan twisting of AdS$_5\times$S$^5$ string sigma model. Finally, we successfully probe this formalism by reproducing the energy of gamma-twisted BMN vacuum at single-wrapping orders of weak coupling expansion.
description: 122 pages, 14 figures
title: Und es gibt sie doch – seltene pulmonale Manifestation bei primären Sjögren-Syndrom
Creators: name: Nielsen, Martin
name: Jung, Arne
name: Bastian, Hans
name: Illigens, Patrick
name: Krause, Andreas
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Anamnese: 53-jähriger Patient aus Moldawien. Bereits seit ca. acht Jahren sei eine „Lungenerkrankung“ bekannt. Details zur bisherigen Diagnostik und Therapie in seiner Heimat waren nicht zu eruieren. Anamnestisch seien häufig Antibiotikatherapien vorgenommen worden. Der Patient[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 46. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh), 32. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh), Wissenschaftliche Herbsttagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
Constraining the $γ$-ray Emission Region for Fermi-Detected FSRQs by the Seed Photon Approach
Creators: name: Huang, Danyi
name: Li, Ziyan
name: Liao, Jiru
name: Huang, Xiulin
name: Li, Chengfeng
name: Qian, Yanjun
name: Pei, Zhiyuan
name: Fan, Junhui
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The location of $γ$-ray emitting region in blazars has been an open issue for several decades and is still being debated. We use the Paliya et al. sample of 619 $γ$-ray-loud flat-spectrum radio quasars with the available spectral energy distributions, and employ a seed photon factor approach, to locate the $γ$-rays production region. This method efficiently set up a relation between the peak frequencies and luminosities for the synchrotron emission and inverse Compton scattering, together with a combination of the energy density and characteristic energy for the external seed photon field, namely, $\sqrt{U_0}/ε_0$, an indicative factor of seed photons (SF) in units of Gauss. By means of comparing it with canonical values of broad-line region and molecular dusty torus, we principally ascertain that the GeV emission is originated far beyond the BLR and close to the DT -- farther out at pc scales from the central black hole, which supports a {\it far-site} scenario for $γ$-ray blazars. We probe the idea that inverse Compton scattering of infrared seed photons is happening in the Thomson regime. This approach and our findings are based on the validity of the External Compton model, which is applicable to understand the GeV emission mechanism in FSRQs. However, the completeness of this framework has been challenged by reports of neutrino emission from blazars. Thus we also shed new light on the neutrino production region by using our derived results since blazars are promising neutrino emitters.
description: Accepted for publication in PASP
Mechanism for collective cell alignment in Myxococcus xanthus bacteria
Creators: name: Balagam, Rajesh
name: Igoshin, Oleg A.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Myxococcus xanthus cells self-organize into aligned groups, clusters, at various stages of their lifecycle. Formation of these clusters is crucial for the complex dynamic multi-cellular behavior of these bacteria. However, the mechanism underlying the cell alignment and clustering is not fully understood. Motivated by studies of clustering in self-propelled rods, we hypothesized that M. xanthus cells can align and form clusters through pure mechanical interactions among cells and between cells and substrate. We test this hypothesis using an agent-based simulation framework in which each agent is based on the biophysical model of an individual M. xanthus cell. We show that model agents, under realistic cell flexibility values, can align and form cell clusters but only when periodic reversals of cell directions are suppressed. However, by extending our model to introduce the observed ability of cells to deposit and follow slime trails, we show that effective trail-following leads to clusters in reversing cells. Furthermore, we conclude that mechanical cell alignment combined with slime-trail-following is sufficient to explain the distinct clustering behaviors observed for wild-type and non-reversing M. xanthus mutants in recent experiments. Our results are robust to variation in model parameters, match the experimentally observed trends and can be applied to understand surface motility patterns of other bacterial species.
description: Added paragraph on high cell density simulations (new Supp. Figure S6) in Discussion section; Moved cell model and simulation procedure from Supplementary methods to Methods section in Main Text
Resolving the core of R136 in the optical
Creators: name: Kalari, Venu M.
name: Horch, Elliott P.
name: Salinas, Ricardo
name: Vink, Jorick S.
name: Andersen, Morten
name: Bestenlehner, Joachim M.
name: Rubio, Monica
Publisher: name: arXiv
Year: 2022
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The sharpest optical images of the R136 cluster in the Large Magellanic Cloud are presented, allowing for the first time to resolve members of the central core, including R136a1, the most massive star known. These data were taken using the Gemini speckle imager Zorro in medium-band filters with effective wavelengths similar to BVRI achieving angular resolutions between 30-40 mas. All stars previously known in the literature, having $V<$16 mag within the central $2''\times2''$ were recovered. Visual companions ($\geq$40 mas; 2000 au) were detected for the WN5h stars R136 a1, and a3. Photometry of the visual companion of a1 suggests it is of mid O spectral type. Based on new photometric luminosities using the resolved Zorro imaging, the masses of the individual WN5h stars are estimated to be between 150-200 $M_{\odot}$, lowering significantly the present-day masses of some of the most massive stars known. These mass estimates are critical anchor points for establishing the stellar upper-mass function.
description: Accepted for publication in ApJ; 14 pages, 8 figures, 3 tables
Opilionanthe Karremans & Bogarin 2018, gen. nov.
Creators: name: Bogarín, Diego
name: Karremans, Adam P.
name: Fernández, Melania
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Opilionanthe

description: Opilionanthe Karremans & Bogarín, gen. nov.
 Type: Trichosalpinx manningii Luer (2002: 113).
 Diagnosis:— Opilionanthe has apparently no close relatives, it is phylogenetically sister to a clade which includes Lepanthes, Lepanthopsis and all of their allies. The cupped flower with long-caudate sepals is somewhat reminiscent of species of Gravendeelia, Stellamaris and Tubella, however, it can be immediately distinguished from those by the long-caudate petals which are similar to the sepals (vs. acute to obtuse, conspicuously shorter than the sepals). From the first two genera it may also be distinguished by the long, multi-flowered inflorescence (vs. short, few-flowered). In species of Anathallis, the sepals and petals are frequently similar to each other, however, Opilionanthe can be distinguished from species of that genus by the lepanthiform-bracts and prolific habit.
 Comments:— The recognition of Opilionanthe is highly supported in our analyses, the accessions of its only species formed a highly supported clade (Fig. 1) (PP=1.0), sister to a clade that includes Draconanthes, Frondaria, Gravendeelia, Lepanthes, Lepanthopsis, Pseudolepanthes and Stellamaris (Fig. 1) (PP=1.0). The single species known to belong this genus is endemic to Peru.
 Etymology:— From Opiliones, an order of arachnids known as harvestmen, harvesters or daddy longlegs, and the Greek anthos, “flower”, in allusion to the long, slender acuminate petals and sepals reminiscent to the long-legged opiliones, distinctive of this genus among its relatives.
description: Published as part of Bogarín, Diego, Karremans, Adam P. & Fernández, Melania, 2018, Genus-level taxonomical changes in the Lepanthes affinity (Orchidaceae, Pleurothallidinae), pp. 128-136 in Phytotaxa 340 (2) on page 131, DOI: 10.11646/phytotaxa.340.2.2, http://zenodo.org/record/13718708
The pattern of gray matter atrophy in Parkinson’s disease differs in cortical and subcortical regions
Creators: name: Wagner, Daymond
name: Lewis, Mechelle M.
name: Lee, Eun-Young
name: Styner, Martin
name: Huang, Xuemei
name: Kong, Lan
name: Du, Guangwei
name: Tröster, Alexander I.
name: Eslinger, Paul J.
name: Nasralah, Zeinab
name: Mailman, Richard B.
name: Zhang, Lijun
name: Sterling, Nicholas W.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Cortical and subcortical gray matter (GM) atrophy may progress differently during the course of Parkinson's disease (PD). We delineated and compared the longitudinal pattern of these PD-related changes.
Opilionanthe manningii Karremans & Bogarin 2018, comb. nov.
Creators: name: Bogarín, Diego
name: Karremans, Adam P.
name: Fernández, Melania
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Opilionanthe
Opilionanthe manningii

description: Opilionanthe manningii (Luer) Karremans & Bogarín, comb. nov.
 Basionym: Trichosalpinx manningii Luer (2002: 113).
description: Published as part of Bogarín, Diego, Karremans, Adam P. & Fernández, Melania, 2018, Genus-level taxonomical changes in the Lepanthes affinity (Orchidaceae, Pleurothallidinae), pp. 128-136 in Phytotaxa 340 (2) on page 131, DOI: 10.11646/phytotaxa.340.2.2, http://zenodo.org/record/13718708
Impact Induced Atmosphere-Mantle Exchange Sets the Volatile Elemental Ratios on Primitive Earths
Creators: name: Chen, Howard
name: Jacobson, Seth A.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Conventional planet formation theory suggests that chondritic materials have delivered crucial atmospheric and hydrospheric elements such as carbon (C), nitrogen (N), and hydrogen (H) onto primitive Earth. However, recent measurements highlight the significant elemental ratio discrepancies between terrestrial parent bodies and the supposed planet building blocks. Here we present a volatile evolution model during the assembly of Earth and Earth-like planets. Our model includes impact losses, atmosphere-mantle exchange, and time dependent effects of accretion and outgassing calculated from dynamical modeling outcomes. Exploring a wide range of planetesimal properties (i.e., size and composition) as well as impact history informed by N-body accretion simulations, we find that while the degree of CNH fractionation has inherent stochasticity, the evolution of C/N and C/H ratios can be traced back to certain properties of the protoplanet and projectiles. Interestingly, the majority of our Earth-like planets acquire superchondritic final C/N ratios, implying that the volatile elemental ratios on terrestrial planets are driven by the complex interplay between delivery, atmospheric ablation, and mantle degassing.
description: 24 pages, 10 figures, 3 tables; accepted to Earth and Planetary Science Letters
title: Geheimnisvolle, therapieresistente rheumatoide Arthritis – eine Fallbeschreibung
Creators: name: Falkowski, Jacek
name: Zielinska, Agnieszka
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Vorgeschichte: Bei einer 61-jährigen Frau seit etwa 10 Jahren sind Anfälle wie in der rheumatoiden Arthritis [ref:1], [ref:2] beobachtet worden. Zusätzlich schon von dem Geburt kommen Hautläsionen von Angiokeratom-Typ und Proteinurie unbekannter Ätiologie[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 46. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh), 32. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh), Wissenschaftliche Herbsttagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
Metaplasticity in human primary somatosensory cortex: effects on physiology and tactile perception
Creators: name: Mackenzie, Tanner N.
name: Tommerdah, Mark
name: Lulic, Tea
name: Mi, Yi Qun
name: Nelson, Aimee J.
name: Bailey, Aaron Z.
name: Jones, Christina B.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Theta-burst stimulation (TBS) over human primary motor cortex evokes plasticity and metaplasticity, the latter contributing to the homeostatic balance of excitation and inhibition. Our knowledge of TBS-induced effects on primary somatosensory cortex (SI) is limited, and it is unknown whether TBS induces metaplasticity within human SI. Sixteen right-handed participants (6 females, mean age 23 yr) received two TBS protocols [continuous TBS (cTBS) and intermittent TBS (iTBS)] delivered in six different combinations over SI in separate sessions. TBS protocols were delivered at 30 Hz and were as follows: a single cTBS protocol, a single iTBS protocol, cTBS followed by cTBS, iTBS followed by iTBS, cTBS followed by iTBS, and iTBS followed by cTBS. Measures included the amplitudes of the first and second somatosensory evoked potentials (SEPs) via median nerve stimulation, their paired-pulse ratio (PPR), and temporal order judgment (TOJ). Dependent measures were obtained before TBS and at 5, 25, 50, and 90 min following stimulation. Results indicate similar effects following cTBS and iTBS; increased amplitudes of the second SEP and PPR without amplitude changes to SEP 1, and impairments in TOJ. Metaplasticity was observed such that TOJ impairments following a single cTBS protocol were abolished following consecutive cTBS protocols. Additionally, consecutive iTBS protocols altered the time course of effects when compared with a single iTBS protocol. In conclusion, 30-Hz cTBS and iTBS protocols delivered in isolation induce effects consistent with a TBS-induced reduction in intracortical inhibition within SI. Furthermore, cTBS- and iTBS-induced metaplasticity appear to follow homeostatic and nonhomeostatic rules, respectively.
LHC constraints on large scalar multiplet models with a $Z_2$ symmetry
Creators: name: Logan, Heather E.
name: Martin, Travis A.
name: Pilkington, Terry
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the LHC search constraints on models that extend the Standard Model (SM) with an inert, complex scalar electroweak multiplet, $Σ$, with isospin T=5/2 (sextet) or T=7/2 (octet) and identical hypercharge to the SM Higgs doublet. Imposing a global $Z_2$ symmetry under which $Σ\to -Σ$, the lightest member of $Σ$ is stable and we require that it be neutral ($ζ^{0,r}$) to avoid cosmological constraints from charged relics. Pair production of scalars by electroweak interactions followed by cascade decays to $ζ^{0,r}$ through W and Z emission produces signatures similar to those of supersymmetric electroweak gauginos, and we constrain the models by recasting a collection of such searches made with data from the 8 TeV run of the LHC. We find that there is no sensitivity from these searches to the compressed spectrum regime, in which the mass splittings between the lightest and heaviest states in $Σ$ are less than about 20 GeV. In the remaining parameter space, we find significant exclusions for $m_{ζ^{0,r}} \sim$ 80-180 GeV in the sextet model, and $m_{ζ^{0,r}} \sim$ 80-120 GeV in the octet model.
description: 19 pages, 64 figures; V2: reference and footnote #2 added, version submitted to PRD; V3: typos corrected, matches published version
Binding Energy Evaluation Platform: A database of quantum chemical binding energy distributions for the astrochemical community
Creators: name: Bovolenta, Giulia M.
name: Vogt-Geisse, Stefan
name: Bovino, Stefano
name: Grassi, Tommaso
Publisher: name: arXiv
Year: 2022
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The quality of astrochemical models is highly dependent on reliable binding energy (BE) values that consider the morphological and energetic variety of binding sites on the surface of ice-grain mantles. Here, we present the Binding Energy Evaluation Platform (BEEP) and database that, using quantum chemical methods, produces full BE distributions of molecules bound to an amorphous solid water (ASW) surface model. BEEP is highly automatized and allows to sample binding sites on set of water clusters and to compute accurate BEs. Using our protocol, we computed 21 BE distributions of interstellar molecules and radicals on an amorphized set of 15-18 water clusters of 22 molecules each. The distributions contain between 225 and 250 unique binding sites. We apply a Gaussian fit and report the mean and standard deviation for each distribution. We compare with existing experimental results and find that the low and high coverage experimental BEs coincide well with the high BE tail and mean value of our distributions, respectively. Previously reported single BE theoretical values are broadly in line with ours, even though in some cases significant differences can be appreciated. We show how the use of different BE values impact a typical problem in astrophysics, such as the computation of snow lines in protoplanetary discs. BEEP will be publicly released so that the database can be expanded to other molecules or ice-models in a community effort.
description: Accepted on ApJS
Kinematic Structure of the Large Magellanic Cloud Globular Cluster System from Gaia eDR3 and Hubble Space Telescope Proper Motions
Creators: name: Bennet, Paul
name: Alfaro-Cuello, Mayte
name: del Pino, Andrés
name: Watkins, Laura L.
name: van der Marel, Roeland P.
name: Sohn, Sangmo Tony
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We have determined bulk proper motions (PMs) for 31 LMC GCs from Gaia eDR3 and Hubble Space Telescope data using multiple independent analysis techniques. Combined with literature values for distances, line-of-sight velocities and existing bulk PMs, we extract full 6D phase-space information for 32 clusters, allowing us to examine the kinematics of the LMC GC system in detail. Except for two GCs (NGC 2159 and NGC 2210) for which high velocities suggest they are not long-term members of the LMC system, the data are consistent with a flattened configuration that rotates like the stellar disk. The one-dimensional velocity dispersions are of order 30 km/s, similar to that of old stellar populations in the LMC disk. Similar to the case for Milky Way disk clusters, the velocity anisotropy is such that the dispersion is smallest in the azimuthal direction; however, alternative anisotropies cannot be ruled out due to distance uncertainties. The data are consistent with a single multi-dimensional Gaussian velocity distribution. Given the non-collisional nature of the LMC disk, this suggests that most, if not all, of the LMC GCs are formed by a single formation mechanism in the stellar disk, despite a significant spread in age and metallicity. Any accreted halo GC population is absent or far smaller in the LMC compared to the Milky Way.
description: Accepted by ApJ, 19 pages, 5 figures, 4 tables
title: Drei Fälle einer seltenen Erkrankung mit immobilsierenden Myalgien der Unterschenkel ohne CK-Erhöhung
Creators: name: Krusche, Martin
name: Ruffer, Nikolas
name: Kubacki, Torsten
name: Kötter, Ina
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Myalgien mit serologisch erhöhten Entzündungszeichen werden häufig zur differentialdiagnostischen Abklärung beim Rheumatologen vorgestellt. Häufig haben die Patienten zuvor schon eine längere Leidenszeit hinter sich. Ergebnisse: Wir präsentieren drei[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 46. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh), 32. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh), Wissenschaftliche Herbsttagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
Mitigating Bias in CMB B-modes from Foreground Cleaning Using a Moment Expansion
Creators: name: Sponseller, Danielle
name: Kogut, Alan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: One of the primary challenges facing upcoming CMB polarization experiments aiming to measure the inflationary B-mode signal is the removal of polarized foregrounds. The thermal dust foreground is often modeled as a single modified blackbody, however overly simplistic foreground models can bias measurements of the tensor-to-scalar ratio r. As CMB polarization experiments become increasingly sensitive, thermal dust emission models must account for greater complexity in the dust foreground while making minimal assumptions about the underlying distribution of dust properties within a beam. We use Planck dust temperature data to estimate the typical variation in dust properties along the line of sight and examine the impact of these variations on the bias in r if a single modified blackbody model is assumed. We then assess the ability of the moment method to capture the effects of spatial averaging and to reduce bias in the tensor-to-scalar ratio for different possible toy models of dust emission. We find that the expected bias due to temperature variations along the line of sight is significant compared to the target sensitivities of future CMB experiments, and that the use of the moment method could reduce bias as well as shed light into the distribution of dust physical parameters.
description: 12 pages, 10 figures. Accepted for publication in ApJ
Modulation of impulsivity and reward sensitivity in intertemporal choice by striatal and midbrain dopamine synthesis in healthy adults
Creators: name: Jagust, William J.
name: D’Esposito, Mark
name: Smith, Christopher T.
name: Wallace, Deanna L.
name: Dang, Linh C.
name: Aarts, Esther
name: Boettiger, Charlotte A.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Converging evidence links individual differences in mesolimbic and mesocortical dopamine (DA) to variation in the tendency to choose immediate rewards (“Now”) over larger, delayed rewards (“Later”), or “Now bias.” However, to date, no study of healthy young adults has evaluated the relationship between Now bias and DA with positron emission tomography (PET). Sixteen healthy adults (ages 24–34 yr; 50% women) completed a delay-discounting task that quantified aspects of intertemporal reward choice, including Now bias and reward magnitude sensitivity. Participants also underwent PET scanning with 6-[18F]fluoro-l-m-tyrosine (FMT), a radiotracer that measures DA synthesis capacity. Lower putamen FMT signal predicted elevated Now bias, a more rapidly declining discount rate with increasing delay time, and reduced willingness to accept low-interest-rate delayed rewards. In contrast, lower FMT signal in the midbrain predicted greater sensitivity to increasing magnitude of the Later reward. These data demonstrate that intertemporal reward choice in healthy humans varies with region-specific measures of DA processing, with regionally distinct associations with sensitivity to delay and to reward magnitude.
Towards Practical Quantum Variational Algorithms
Creators: name: Wecker, D.
name: Hastings, M. B.
name: Troyer, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The preparation of quantum states using short quantum circuits is one of the most promising near-term applications of small quantum computers, especially if the circuit is short enough and the fidelity of gates high enough that it can be executed without quantum error correction. Such quantum state preparation can be used in variational approaches, optimizing parameters in the circuit to minimize the energy of the constructed quantum state for a given problem Hamiltonian. For this purpose we propose a simple-to-implement class of quantum states motivated by adiabatic state preparation. We test its accuracy and determine the required circuit depth for a Hubbard model on ladders with up to 12 sites (24 spin-orbitals), and for small molecules. We find that this ansatz converges faster than previously proposed schemes based on unitary coupled clusters. While the required number of measurements is astronomically large for quantum chemistry applications to molecules, applying the variational approach to the Hubbard model (and related models) is found to be far less demanding and potentially practical on small quantum computers. We also discuss another application of quantum state preparation using short quantum circuits, to prepare trial ground states of models faster than using adiabatic state preparation.
description: 10 pages; v2, additional numerical simulations
A Low-speed Intruder Star in Hyades: A Temporary Residence
Creators: name: Hu, Qingshun
name: Zhang, Yu
name: Esamdin, Ali
name: Jiang, Dengkai
name: Qin, Mingfeng
name: Chang, Ning
name: Wang, Haozhi
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 hereby report a low-speed (about~21~km$\cdot$~s$^{-1}$ with respect to the Sun) intruder member in the Hyades cluster based on the data in the literature. The results show that the star is a non-native member star for the Hyades, with its radial velocity being smaller than the radial velocity of the Hyades cluster, even exceeding the standard deviation of the radial velocity of the cluster by a factor of 9. Furthermore, by analyzing and comparing the orbits of this star and its host, it may have intruded into its host in the past 2~Myr. If the star's current motion orbit remains unchanged, it may leave its host in the next 2~Myr. This implies that the intruder star may be temporarily residing in the cluster. This study presents the first observational evidence of a star intrusion into a cluster, which suggests that more evidence may be found.
description: 9 pages, 7 figures; accepted for publication in ApJ
MPEC 2023-T148 : 2023 TE5
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 TE5

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Pendusalpinx Karremans & Mel. Fernandez 2018, gen. nov.
Creators: name: Bogarín, Diego
name: Karremans, Adam P.
name: Fernández, Melania
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Pendusalpinx

description: Pendusalpinx Karremans & Mel.Fernández, gen. nov.
 Type: Pleurothallis berlineri Luer (1976: 60). Synonym: Trichosalpinx berlineri (Luer 1976: 60) Luer (1983:394).
 Diagnosis:— Pendusalpinx is sister to genus Lankesteriana, but can be immediately distinguished by the large, up to 30 cm tall, pendulous plants (vs. short, less than 3 cm tall, erect), with ramicauls longer than or similar to the leaf (vs. much shorter than the leaf), covered by large, lepanthiform bracts (bract inconspicuous, not lepanthiform), the glaucous leaves twisted at the base (vs. green, straight), the pendent inflorescence, shorter than the leaf, with several flowers open at once (vs. erect to arching, longer than the leaf, with one flower open at a time), the petals are triangular to elliptic (vs. generally lanceolate), and the lip flat (vs. with a deep mid-line depression). Species of Pendusalpinx are superficially more similar to Trichosalpinx, but can be distinguished by the pendulous plants, the ramicauls covered by conspicuous, whitish bracts (vs. smaller, brown bracts), the glaucous leaves, pendent, basally twisted (vs. green, erect, straight) leaves, and a pair of broad angled wings above the middle of the column (vs. without broad angled wings above the middle).
 Comments:— The genus includes six species that are distributed from Colombia and Venezuela to Bolivia and Peru. They are not present in Central America, the Antilles and Brazil. The recognition of the novel genus Pendusalpinx is highly supported in our analyses, the accessions of several of its species consistently formed a highly supported clade (Fig. 1) (PP=1.0), sister to Lankesteriana (Fig. 1) (PP=1.0), as was previously found by Karremans (2014) and Pérez-Escobar et al. (2017). The two genera are highly supported, genetically well separated and morphologically distinct in virtually every aspect. Pendusalpinx species share several features with Trichosalpinx, nevertheless, they are consistently found sister to Lankesteriana instead. The two genera are here highly supported as sisters of Trichosalpinx in the strict sense, nevertheless, such a relationship has not been found in previous DNA based studies, and in the interest of stability and definability they are recognized as distinct.
description: Published as part of Bogarín, Diego, Karremans, Adam P. & Fernández, Melania, 2018, Genus-level taxonomical changes in the Lepanthes affinity (Orchidaceae, Pleurothallidinae), pp. 128-136 in Phytotaxa 340 (2) on pages 131-132, DOI: 10.11646/phytotaxa.340.2.2, http://zenodo.org/record/13718708
Planetesimal Dynamics in the Presence of a Giant Planet II: Dependence on Planet Mass and Eccentricity
Creators: name: Guo, Kangrou
name: Kokubo, Eiichiro
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The presence of an early-formed giant planet in the protoplanetary disk has mixed influence on the growth of other planetary embryos. Gravitational perturbation from the planet can increase the relative velocities of planetesimals at the mean motion resonances to very high values and impede accretion at those locations. However, gas drag can also align the orbital pericenters of equal-size planetesimals in certain disk locations and make them dynamically quiet and "accretion-friendly" locations for planetesimals of similar sizes. Following the previous paper, where we investigated the effect of a Jupiter-like planet on an external planetesimal disk, we generalize our findings to extrasolar planetary systems by varying the planet parameters. In particular, we focus on the dependence of the planetesimal relative velocities on the mass and eccentricity of the existing planet. We found that the velocity dispersion of identical-mass particles increases monotonically with increasing planet mass. Meanwhile, the dependence of the relative velocity between different-mass planetesimals on their mass ratio becomes weaker as the planet mass increases. While the relative velocities generally increases with increasing planet eccentricity, the velocity dispersion of smaller-mass particles ($m \lesssim 10^{18}~\rm{g}$) is almost independent of planet eccentricity owing to their strong coupling to gas. We find that the erosion limits are met for a wider range of parameters (planet mass/eccentricity, planetesimal mass ratio) when the planetesimal size decreases. Our results could provide some clues for the formation of Saturn's core as well as the architecture of some exoplanetary systems with multiple cold giant planets.
description: Accepted to ApJ
SUSTAINABLE DEVELOPMENT: FUTURE OF GROUNDWATER MANAGEMENT
Creators: name: Akshay Raj Manocha1 Ajay Kumar1 Bhart Singh2
Publisher: name: Zenodo
Year: 2022
Subjects: Sustainable Development, Groundwater, water resources.

description: Abstract: Groundwater is the most important asset of Planet Earth for sustaining life and the environment. The rampant use in all spheres led to its fast depletion, so sustainable resource management become necessary. Groundwater water resource Management becomes important not only in India but also all over the planet earth. The sustainable ground water resources are Major challenge across nations, especially those located in the arid regions. In our paper we will define sustainable water resource as a flux of water that is managed to maintain quantity and quality of water. The role of water is too basic that we cannot depend only on single institution but demand collaborative approach. To address the problem of groundwater is immediate concern not only for present generation but for future as well. Water management include area with linkages multiple sectors of the Indian economy like industrial, agriculture, household, the power, environment, fisheries, and transportation sector. This management approach will be helpful to overcome the water stressed demand and help to increase he water supply. This paper acknowledges suitable measures for the management of ground water in India. The role of many factors that govern the utilization of water resources by looking at increasing water demand, so it become indispensable people centric approach for the ground water management.
Spatially resolved penetration depth measurements and vortex manipulation in the ferromagnetic superconductor ErNi2B2C
Creators: name: Wulferding, Dirk
name: Yang, Ilkyu
name: Yang, Jinho
name: Lee, Minkyung
name: Choi, Hee Cheul
name: Bud'ko, Sergey L.
name: Canfield, Paul C.
name: Yeom, Han Woong
name: Kim, Jeehoon
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present a local probe study of the magnetic superconductor, ErNi$_2$B$_2$C, using magnetic force microscopy at sub-Kelvin temperatures. ErNi$_2$B$_2$C is an ideal system to explore the effects of concomitant superconductivity and ferromagnetism. At 500 mK, far below the transition to a weakly ferromagnetic state, we directly observe a structured magnetic background on the micrometer scale. We determine spatially resolved absolute values of the magnetic penetration depth $λ$ and study its temperature dependence as the system undergoes magnetic phase transitions from paramagnetic to antiferromagnetic, and to weak ferromagnetic, all within the superconducting regime. In addition, we estimate the absolute pinning force of Abrikosov vortices, which shows a position- and temperature dependence as well, and discuss the possibility of the purported spontaneous vortex formation.
Muscle fatigue increases beta-band coherence between the firing times of simultaneously active motor units in the first dorsal interosseous muscle
Creators: name: Rymer, William Z.
name: Lowery, Madeleine M.
name: McManus, Lara
name: Suresh, Nina L.
name: Hu, Xiaogang
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Synchronization between the firing times of simultaneously active motor units (MUs) is generally assumed to increase during fatiguing contractions. To date, however, estimates of MU synchronization have relied on indirect measures, derived from surface electromyographic (EMG) interference signals. This study used intramuscular coherence to investigate the correlation between MU discharges in the first dorsal interosseous muscle during and immediately following a submaximal fatiguing contraction, and after rest. Coherence between composite MU spike trains, derived from decomposed surface EMG, were examined in the delta (1–4 Hz), alpha (8–12 Hz), beta (15–30 Hz), and gamma (30–60 Hz) frequency band ranges. A significant increase in MU coherence was observed in the delta, alpha, and beta frequency bands postfatigue. In addition, wavelet coherence revealed a tendency for delta-, alpha-, and beta-band coherence to increase during the fatiguing contraction, with subjects exhibiting low initial coherence values displaying the greatest relative increase. This was accompanied by an increase in MU short-term synchronization and a decline in mean firing rate of the majority of MUs detected during the sustained contraction. A model of the motoneuron pool and surface EMG was used to investigate factors influencing the coherence estimate. Simulation results indicated that changes in motoneuron inhibition and firing rates alone could not directly account for increased beta-band coherence postfatigue. The observed increase is, therefore, more likely to arise from an increase in the strength of correlated inputs to MUs as the muscle fatigues.
title: Strategies to support community building to increase engagement and to address the challenges of multi-grade, asynchronous, continuous-entry online learning environments to meet the needs of middle school-aged learners
Creators: name: Kobetitch, Emily J.
Publisher: name: Electronic version published by Vancouver Island University
Year: 2018
Subjects: subject: Web-based instruction

description: Learning and teaching online present challenges unique to the digital environment. Informed by research, this paper intends to address some of those challenges by addressing the Critical Challenge Question, “How to support community building to increase engagement and to address the challenges of multi-grade, asynchronous, continuous-entry online learning environments to meet the needs of middle school-aged learners?” The findings of this paper have been applied in the creation of two virtual entities, a virtual homeroom and a program companion website. The intent of the homeroom is to build community amongst learners by providing structured opportunities for students build social connections with their teacher and peers. The program companion website will provide a secure platform for resources and other support tools. Overall feedback validated the two project builds and anticipated that the goals would be realized. Limitations for implementing this project revolve around time, availability and student and parent buy-in. Future research is needed to support the necessity of, and best practices for, creating online environments that foster community engagement.
Determination of the $WW$ polarization fractions in $pp \to W^\pm W^\pm jj$ using a deep machine learning technique
Creators: name: Searcy, Jacob
name: Huang, Lillian
name: Pleier, Marc-André
name: Zhu, Junjie
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: The unitarization of the longitudinal vector boson scattering (VBS) cross section by the Higgs boson is a fundamental prediction of the Standard Model which has not been experimentally verified. One of the most promising ways to measure VBS uses events containing two leptonically-decaying same-electric-charge $W$ bosons produced in association with two jets. However, the angular distributions of the leptons in the $W$ boson rest frame, which are commonly used to fit polarization fractions, are not readily available in this process due to the presence of two neutrinos in the final state. In this paper we present a method to alleviate this problem by using a deep machine learning technique to recover these angular distributions from measurable event kinematics and demonstrate how the longitudinal-longitudinal scattering fraction could be studied. We show that this method doubles the expected sensitivity when compared to previous proposals.
description: 7 pages, 4 figures, published in PRD
title: SLE, APLS erworbene Cutis laxa und generalisierte Gefäßverkalkungen – Pech oder gemeinsame pathogenische Schnittstelle?
Creators: name: Capraru, Monica
name: Deisl, Michael
name: Horsch, Eino
name: Maleitzke, Rüdiger
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Eine Cutis laxa ist eine seltene Hautveränderung, die sich durch einen gefalteten, schlaffen Aspekt mit verminderter Elastizität darstellt. Die erworbene Form wurde mit der Exposition auf verschiedenen Medikamenten, Infekte oder Autoimmunerkrankungen assoziiert. Der SLE ist oft frühzeitigvonatherosklerotischenGefäßveränderungen[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 46. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh), 32. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh), Wissenschaftliche Herbsttagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
title: Rechtes Vorhof-Myxom assoziiert mit einem Antiphospholipid-AK Syndrom und autoimmune Serologie
Creators: name: Capraru, Monica
name: Deisl, Michael
name: Horsch, Eino
name: Benckendorff, Julian
name: Maleitzke, Rüdiger
name: Barth, Thomas
Publisher: name: German Medical Science GMS Publishing House
Year: 2019
Subjects: subject: 610 Medical sciences; Medicine

description: Einleitung: Ein Myxom ist eines der häufigstenkardialen Tumore, und ist meistens im rechten Vorhof lokalisiert. Auf der anderen Seite sind die häufigsten klinischen Zeichen eines APLS (Antiphospholipid-Syndrom) thromboembolische Phänomene, die in allen Gefäßterritorien auftreten[zum vollständigen Text gelangen Sie über die oben angegebene URL]
description: 46. Kongress der Deutschen Gesellschaft für Rheumatologie (DGRh), 32. Jahrestagung der Deutschen Gesellschaft für Orthopädische Rheumatologie (DGORh), Wissenschaftliche Herbsttagung der Gesellschaft für Kinder- und Jugendrheumatologie (GKJR)
Design and characterization of a microfabricated hydrogen clearance blood flow sensor
Creators: name: McCarty, Gregory S.
name: Walton, Lindsay R.
name: Edwards, Martin A.
name: Wightman, R. Mark
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: Modern cerebral blood flow (CBF) detection favors the use of either optical technologies that are limited to cortical brain regions, or expensive magnetic resonance. Decades ago, inhalation gas clearance was the choice method of quantifying CBF, but this suffered from poor temporal resolution. Electrolytic H2 clearance (EHC) generates and collects gas in situ at an electrode pair, which improves temporal resolution, but the probe size has prohibited meaningful subcortical use.
Pendusalpinx echinata Karremans & Mel. Fernandez 2018, comb. nov.
Creators: name: Bogarín, Diego
name: Karremans, Adam P.
name: Fernández, Melania
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Liliopsida
Asparagales
Orchidaceae
Pendusalpinx
Pendusalpinx echinata

description: Pendusalpinx echinata (Luer & Hirtz) Karremans & Mel.Fernández, comb. nov.
 Basionym: Trichosalpinx echinata Luer & Hirtz in Luer (2009: 24).
description: Published as part of Bogarín, Diego, Karremans, Adam P. & Fernández, Melania, 2018, Genus-level taxonomical changes in the Lepanthes affinity (Orchidaceae, Pleurothallidinae), pp. 128-136 in Phytotaxa 340 (2) on page 132, DOI: 10.11646/phytotaxa.340.2.2, http://zenodo.org/record/13718708