cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
High resolution spectroscopy for Cepheids distance determination. V. Impact of the cross-correlation method on the p-factor and the gamma-velocities
Creators: name: Nardetto, N.
name: Gieren, W.
name: Kervella, P.
name: Fouque, P.
name: Storm, J.
name: Pietrzynski, G.
name: Mourard, D.
name: Queloz, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The cross correlation method (hereafter CC) is widely used to derive the radial velocity curve of Cepheids when the signal to noise of the spectra is low. However, if it is used with the wrong projection factor, it might introduce some biases in the Baade-Wesselink (hereafter BW) methods of determining the distance of Cepheids. In addition, it might affect the average value of the radial velocity curve (or gamma-velocity) important for Galactic structure studies. We aim to derive a period-projection factor relation (hereafter Pp) appropriate to be used together with the CC method. Moreover, we investigate whether the CC method can explain the misunderstood previous calculation of the K-term of Cepheids. We observed eight galactic Cepheids with the HARPS spectrograph. For each star, we derive an interpolated CC radial velocity curve using the HARPS pipeline. The amplitudes of these curves are used to determine the correction to be applied to the semi-theoretical projection factor derived in Nardetto et al. (2007). Their average value (or gamma-velocity) are also compared to the center-of-mass velocities derived in Nardetto et al. (2008). The correction in amplitudes allows us to derive a new Pp relation: p = [-0.08+-0.05] log P +[1.31+-0.06]. We also find a negligible wavelength dependence (over the optical range) of the Pp relation. We finally show that the gamma-velocity derived from the CC method is systematically blue-shifted by about 1.0 +- 0.2km/s compared to the center-of-mass velocity of the star. An additional blue-shift of 1.0km/s is thus needed to totally explain the previous calculation of the K-term of Cepheids (around 2km/s). The new Pp relation we derived is a solid tool for the distance scale calibration (abridged).
description: Comments : 9 pages, 3 Postscript figures, 5 Tables, accepted for publication in A&A
Holonomic Quantum Computation with Electron Spins in Quantum Dots
Creators: name: Golovach, Vitaly N.
name: Borhani, Massoud
name: Loss, Daniel
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: With the help of the spin-orbit interaction, we propose a scheme to perform holonomic single qubit gates on the electron spin confined to a quantum dot. The manipulation is done in the absence (or presence) of an applied magnetic field. By adiabatic changing the position of the confinement potential, one can rotate the spin state of the electron around the Bloch sphere in semiconductor heterostructures. The dynamics of the system is equivalent to employing an effective non-Abelian gauge potential whose structure depends on the type of the spin-orbit interaction. As an example, we find an analytic expression for the electron spin dynamics when the dot is moved around a circular path (with radius R) on the two dimensional electron gas (2DEG), and show that all single qubit gates can be realized by tuning the radius and orientation of the circular paths. Moreover, using the Heisenberg exchange interaction, we demonstrate how one can generate two-qubit gates by bringing two quantum dots near each other, yielding a scalable scheme to perform quantum computing on arbitrary N qubits. This proposal shows a way of realizing holonomic quantum computers in solid-state systems.
Side effects by oral application of atmospheric pressure plasma on the mucosa in mice
Creators: name: Jablonowski, Lukasz
name: Kocher, Thomas
name: Schindler, Axel
name: Müller, Karolina
name: Dombrowski, Frank
name: Von Woedtke, Thomas
name: Arnold, Thomas
name: Lehmann, Antje
name: Rupf, Stefan
name: Evert, Matthias
name: Evert, Katja
Publisher: name: San Francisco, California, US : PLOS
Year: 2019
Subjects: subject: Cold atmospheric pressure plasma (CAP)
subject: peri-implant diseases
subject: CAP treatment
subject: 500
subject: 610

description: Cold atmospheric pressure plasma (CAP) has been investigated with promising results for peri-implant diseases treatment. However, prior to in-vivo applications of CAP sources in humans, short-term harmful mucosal damage or other unwanted side effects have to be reviewed. 180 male mice (B6C3F1) were divided into twelve treatment groups (n = 15). The right buccal cheek mucosa was treated with CAP. The first and second group each received continuous 10 sec irradiation with 2 different plasma sources (kINPen09, PS-MWM). The third group was treated with the kINPen09 for one minute. Control groups were treated with a corresponding dose of ultraviolet light for 8 seconds or 48 seconds and the other one was left untreated. The animals were weighed before and after treatment. The animals were sacrificed one day or one week after exposure. Stained tissue samples were histologically examined for tissue damage independently by two experienced pathologists. One day after CAP treatment histological analysis showed focal mucosal erosion with superficial ulceration and necrosis accompanied by a mild inflammatory reaction. One week after CAP treatment, the mucosal defects were completely re-epithelialized, associated with remnants of granulation tissue in the stroma irrespective of treatment duration. Furthermore, no cytological atypia was found and no severe weight loss occurred. The control groups did not show any alterations at all. CAP treatment led to a superficial mucosal damage that healed within few days. Nonetheless, further long-term experiments are necessary to exclude undesirable side effects after longer observation time. Particularly, potential carcinogenic effects must be ruled out prior to the application of CAP treatment in daily dental practice.
High-accuracy Complete Active Space multiconfiguration Dirac-Hartree-Fock calculations of hyperfine structure constants of the gold atom
Creators: name: Bierón, Jacek
name: Fischer, Charlotte Froese
name: Indelicato, Paul
name: Jönsson, Per
name: Pyykkö, Pekka
Publisher: name: arXiv
Year: 2009
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The multiconfiguration Dirac-Hartree-Fock (MCDHF) model has been employed to calculate the expectation values for the hyperfine splittings of the 5d96s2 2D3/2 and 5d96s2 2D5/2 levels of atomic gold. One-, two-, and three-body electron correlation effects involving all 79 electrons have been included in a systematic manner. The approximation employed in this study is equivalent to a Complete Active Space (CAS) approach. Calculated electric field gradients, together with experimental values of the electric quadrupole hyperfine structure constants, allow us to extract a nuclear electric quadrupole moment Q(197Au)=521.5(5.0) mb.
title: Experimental Studies of Delta Wing Parameters in Open Channel Raceway Determined Via Validated Computational Fluid Dynamics
Creators: name: Blakely, Cole David
Publisher: name: Utah State University
Year: 2014

description: A promising feedstock for biofuels is microalgae. The most economical means of cultivating microalgae is via open raceway ponds. However, a large gap in economic feasibility exists between algae-based biofuels and traditional petroleum fuels. Recent research at Utah State University has focused on increasing biomass growth by implementing Delta Wings (DWs). DWs are placed facing the incoming flow, with a 40 degree angle of attack to create large vortices which travel downstream. The trailing vortices increase vertical mixing, which in turn increases algal growth.
Past researchers at USU quantified vertical mixing with new metrics, optimized various raceway operating conditions, and established a positive correlation between the newly defined metrics and algal growth. Research was performed with the aid of a small-scale clear acrylic raceway. Both stereo particle image velocimetry (SPIV) and acoustic Doppler velocimetry (ADV) were used to estimate the recently defined mixing metric: the vertical mixing index (VMI). The focus of this work is to ascertain additional preferred operating conditions, in particular those unique to large scale raceways, with the aid of a computational fluid dynamics (CFD) model validated by experimental data. Three case studies are presented herein, which analyze the DW vertical position (VP), array spacing ratio (ASR), and the projected height to depth ratio (PHDR). The criteria for these studies are the VMI and power consumption.
While it was previously assumed that vertically centering the DW centroid was optimal, the first case study revealed the ideal VP to be far lower. The lowest possible VP allows the trailing vortices to travel further downstream, resulting in increased vertical mixing. The second case study entails modeling complete arrays of DWs with various spacing. This model was the first to account for an increase in the number of allowable DWs with a decrease in array spacing. The ASR study revealed the ideal array spacing to be approximately half a DW, as opposed to the initial estimate of a full DW. The third case study confirmed the largest allowable DW to be superior.
The correlation energy functional within the GW-RPA approximation: exact forms, approximate forms and challenges
Creators: name: Ismail-Beigi, Sohrab
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In principle, the Luttinger-Ward Green's function formalism allows one to compute simultaneously the total energy and the quasiparticle band structure of a many-body electronic system from first principles. We present approximate and exact expressions for the correlation energy within the GW-RPA approximation that are more amenable to computation and allow for developing efficient approximations to the self-energy operator and correlation energy. The exact form is a sum over differences between plasmon and interband energies. The approximate forms are based on summing over screened interband transitions. We also demonstrate that blind extremization of such functionals leads to unphysical results: imposing physical constraints on the allowed solutions (Green's functions) is necessary. Finally, we present some relevant numerical results for atomic systems.
description: 3 figures and 3 tables, under review at Physical Review B
Power suppressed effects in B-> X_s gamma at O(alpha_s)
Creators: name: Ewerth, Thorsten
name: Gambino, Paolo
name: Nandi, Soumitra
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compute the O(alpha_s) corrections to the Wilson coefficients of the dimension five operators emerging from the Operator Product Expansion of inclusive radiative B decays. We discuss the impact of the resulting O(alpha_s Lambda_QCD^2/m_b^2) corrections on the extraction of m_b and mu_pi^2 from the moments of the photon spectrum.
description: 14 pages,4 figures, v2: comments and one figure on endpoint behaviour added, version to appear on NPB
title: Restoring the Lost Fishery: An Environmental History of Northern Nevada's Pyramid Lake and Lower Truckee River Fishery
Creators: name: Bolingbroke, David
Publisher: name: Utah State University
Year: 2014

description: This thesis focuses on fisheries managers’ efforts to restore native cutthroats to northern Nevada’s Pyramid Lake for recreation, and the Paiutes’ battle to preserve them as a means of livelihood. Their efforts to reconstruct the fishery revealed the implausibility of environmental restoration, but more importantly underlined the motivations necessary to attempt it.
Chapter 2 describes how the Pyramid Lake Lahontan cutthroat— historically an important subsistence resource for Northern Paiutes— were initially exploited for profit in the late 1800s and early 1900s, and gradually destroyed as agricultural interests diverted the Truckee River’s water and industrial pollution contaminated the trout’s aquatic habitat. Fisheries managers in Nevada turned to artificial propagation to meet the demands of fishermen and replace the native fish industrialization destroyed. The Nevada Fish and Game Commission experimented with non-native introductions and like most of the West became proponents of rainbow trout and their recreational potential.
Chapter 3 narrates a history of the Nevada Fish and Game Commission’s project to restore trout to Pyramid Lake in the 1950s and 1960s after its native cutthroat became extinct in the early 1940s. For the Commission, restoring Pyramid Lake meant establishing trout and salmon populations— native or not— to feed the growing outdoor tourism industry. While the Commission made plans to restore natural spawning runs, these were unsuccessful, and the Commission relied on stocking the lake to maintain the fishery. However, these experiments failed and eventually cutthroats from other lakes in Nevada proved better occupants of the lake.
Chapter 4 describes the native cutthroat’s role in the water debate carried out in government agencies and in the courts in the 1970s and 1980s to decide whether or not water diverted from the Truckee for agriculture should be returned to the Paiutes to support their shrinking lake and dwindling fishery. Environmentalist groups like the Sierra Club joined the Paiutes in their effort to gain water that would allow for the native fishery’s restoration. Their vision clashed with that of agriculturists who feared losing water they depended on for their crops. However, after a lengthy struggle, the Paiutes won an important victory toward preserving their lake.
A New Era of Mobility: Exploring Digital Twin Applications in Autonomous Vehicular Systems
Creators: name: Hossain, S M Mostaq
name: Saha, Sohag Kumar
name: Banik, Shampa
name: Banik, Trapa
Publisher: name: arXiv
Year: 2023
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Digital Twins (DTs) are virtual representations of physical objects or processes that can collect information from the real environment to represent, validate, and replicate the physical twin's present and future behavior. The DTs are becoming increasingly prevalent in a variety of fields, including manufacturing, automobiles, medicine, smart cities, and other related areas. In this paper, we presented a systematic reviews on DTs in the autonomous vehicular industry. We addressed DTs and their essential characteristics, emphasized on accurate data collection, real-time analytics, and efficient simulation capabilities, while highlighting their role in enhancing performance and reliability. Next, we explored the technical challenges and central technologies of DTs. We illustrated the comparison analysis of different methodologies that have been used for autonomous vehicles in smart cities. Finally, we addressed the application challenges and limitations of DTs in the autonomous vehicular industry.
description: 7 pages, conference paper, accepted for publication in IEEE AIIoT 2023 conference
The Hubble flow around the Local Group
Creators: name: Karachentsev, I. D.
name: Kashibadze, O. G.
name: Makarov, D. I.
name: Tully, R. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use updated data on distances and velocities of galaxies in the proximity of the Local Group (LG) in order to establish properties of the local Hubble flow. For 30 neighbouring galaxies with distances 0.7 < D_LG < 3.0 Mpc, the Local flow is characterized by the Hubble parameter H_loc = (78+/-2) km/(s*Mpc), the mean-square peculiar velocity sigma_v = 25 km/s, corrected for errors of radial velocity measurements (~4 km/s) and distance measurements (~10 km/s), as well as the radius of the zero-velocity surface R_0 = (0.96+/-0.03) Mpc. The minimum value for sigma_v is achieved when the barycenter of the LG is located at the distance D_c = (0.55+/-0.05) D_M31 towards M31 corresponding to the Milky Way-to-M31 mass ratio M_MW / M_M31 ~ 4/5. In the reference frame of the 30 galaxies at 0.7 - 3.0 Mpc, the LG barycenter has a small peculiar velocity ~(24+/-4) km/s towards the Sculptor constellation. The derived value of R_0 corresponds to the total mass M_T(LG) = (1.9+/-0.2) 10^12 M_sun with Omega_m = 0.24 and a topologically flat universe, a value in good agreement with the sum of virial mass estimates for the Milky Way and M31.
description: 14 pages, 6 figures, 1 table. Accepted for publication in MNRAS
Atomic-ensemble-based quantum memory for sideband modulations
Creators: name: Ortalo, Jérémie
name: Cviklinski, Jean
name: Lombardi, Pietro
name: Laurat, Julien
name: Bramati, Alberto
name: Pinard, Michel
name: Giacobino, Elisabeth
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Interaction of a control and a signal field with an ensemble of three-level atoms allows direct mapping of the quantum state of the signal field into long lived coherences of an atomic ground state. For a vapor of cesium atoms, using Electromagnetically Induced Transparency (EIT) and Zeeman coherences, we compare the case where a tunable single-sideband is stored independently of the other one to the case where the two symmetrical sidebands are stored using the same transparency window. We study the conditions in which simultaneous storage of two non-commuting variables carried by light and subsequent read-out is possible. We show that excess noise associated with spontaneous emission and spin relaxation is small, and we evaluate the quantum performance of our memory by measuring the signal transfer coefficient T and the conditional variance V and using the T-V criterion as a state independent benchmark.
title: The Effect of Early Spring Clipping and the Level of Nitrogen Fertilizer on the Yield of Improved Pastures, North Logan, Utah
Creators: name: Sumrit, Dechar
Publisher: name: Utah State University
Year: 1971

description: The influence of agronomic practices on forage production and chemical composition of grass-legume pasture mixture was studied at the Utah State University Dairy Farm, North Logan, Utah, during spring and summer, 1970. The soil is a well-drained Millville silt loam that has about a 1 percent slope. It is high in potash, phosphorus, and lime, having a pH of 7.9.
Analysis of the clipping management showed that the early spring clipping decreased the yield of forage. The losses in total yield due to spring clipping were approximately four to five times the yields received in early spring clipping. The grasses were affected more than the legumes.
The yields of dry forage increased with the increase in fertilizer rates from 0 through 300 pounds of nitrogen per acre. There was no advantage to splitting the nitrogen fertilizer of 300 pounds per acre into three applications. Most of the effects of spring clipping and nitrogen fertilization were re fleeted in the first summer harvest.
The plots fertilized with nitrogen produced a higher yield and nitrate content than the check plots. Legumes were higher in nitrate on the unfertilized plots than the grasses, but lower on the fertilized plots.
title: Teacher Orientation to Social Studies: A Phenomenological Study
Creators: name: Olsen, Jeffrey A.
Publisher: name: Utah State University
Year: 2014

description: Textbooks, curriculum packages, standards, professional development and pre-service education, and national advocacy groups all utilize orientation terms to identify the pedagogical approaches, though no model for orientations has currently been validated against the lived experience of teachers. The purpose of the dissertation is to research a practitioner-informed orientation model for social studies, utilizing the lived experiences of teachers including their connections to and with technology. As a preliminary investigation to explore and understand the construct of orientations, the initial set of participants was bound to three secondary social studies teachers from an urban, suburban, and rural district, respectively. Data collection was completed through a series of detailed interviews including three modified narrative identity protocols, one elicited response interview, and one observation interview. Phenomenology formed the epistemological lens and the method that utilized various instruments as a pathway into the teachers’ perceived life worlds. Research was conducted from a transcendental or psychological approach to phenomenology with a grounded theory approach to analyzing the data to generate theoretical themes rooted in the narratives. A detailed description of each case narrative along with the phenomenological essence of each teacher is provided individually before cross case analysis is presented. From this combined case data, a constructed model that captures the narratives, trends, and overlaps was created. Evans’ orientation model was utilized as exemplary of the field for comparison. There existed overlaps present with the utilized model yet current models explored failed to encompass all elements of teacher-held orientations and an emergent model is presented that includes the following orientation constructs: social efficiency, a social sciences core, a transformative role, and personal improvement. The findings also included four themes: the role of storytelling as a central concept in practice, the role of film and television representations of history in sustaining engagement, the value of the classroom environment and students in creating a sense of equity, and a close level of uniformity in orientation reporting out of step with current frameworks. Implications for learning environments, particularly in relation to the utilization of technology, are discussed in addition to necessary future research suggestions.
Development of the Columbian black-tailed deer (Odocoileus hemionus columbianus) during the fetal period
Creators: name: Ommundsen, Peter D.
Publisher: name: University of British Columbia
Year: 2011

description: A series of 88 fetuses of the Columbian black-tailed deer (Odocoileus hemionus columbianus) was examined and measured. From the data obtained it was possible to reconstruct the probable sequence of changes in morphology and patterns of relative growth that occur during the development of the fetus. A series of stages of development was outlined, based on external morphological characteristics. The auricles of the ears appear to be the fastest-growing structures in relation to body length. The cranial portion of the skull grows in diameter faster than the inter-orbital region. In length, the preorbital and postorbital segments of the skull show similar growth rates. The neck grows in circumference relatively faster than the abdomen. The hind limbs grow faster than the fore limbs. Greater differences in patterns of relative growth were observed between this subspecies and the Northern white-tailed deer (O. virginianus borealis) than between the black-tailed deer and Rocky Mountain mule deer (O. h. hemionus). Some sources of variation were examined, including technical problems, individual differences, differences between the sexes and the relationship between size and form. Not all regions appear to develop at the same rate in different animals Males were found to.be larger than females at the same stage of morphological development. Some body dimensions had a much higher correlation with structural change than did others.
Neutral Higgs-pair production at Linear Colliders within the general 2HDM: quantum effects and triple Higgs boson self-interactions
Creators: name: Lopez-Val, David
name: Sola, Joan
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The pairwise production of neutral Higgs bosons is analyzed in the context of the future linear colliders, such as the ILC and CLIC, within the general Two-Higgs-Doublet Model (2HDM). The corresponding cross-sections are computed at the one-loop level in full compliance with the current phenomenological bounds and the stringent theoretical constraints inherent to the consistency of the model. We uncover regions across the 2HDM parameter space, mainly for low tanβnear 1 and moderate values of the relevant lambda_5 parameter, wherein the radiative corrections to the Higgs-pair production cross sections can comfortably reach 50% This behavior can be traced back to the enhancement capabilities of the trilinear Higgs self-interactions -- a trademark feature of the 2HDM, with no counterpart in the Minimal Supersymmetric Standard Model. Interestingly enough, the quantum effects are positive for energies around 500 GeV, thereby producing a significant enhancement in the expected number of events precisely around the fiducial startup energy of the ILC. The Higgs-pair production rates can be substantial, typically amounting to a few thousand events per 500 inverse femtobarn of integrated luminosity. In contrast, the corrections are negative in the highest energy range (1 TeV). We also compare the exclusive pairwise production of Higgs bosons with the inclusive gauge boson fusion channels leading to 2H+X finals states, and also with the exclusive triple Higgs boson production. We find that these multiparticle final states can be highly complementary in the overall Higgs bosons search strategy.
description: 42 pages, 23 figures, 10 tables. Accepted in Phys. Rev. D (the published version is shorter)
Y-system for Scattering Amplitudes
Creators: name: Alday, Luis F.
name: Maldacena, Juan
name: Sever, Amit
name: Vieira, Pedro
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute N=4 Super Yang Mills planar amplitudes at strong coupling by considering minimal surfaces in AdS_5 space. The surfaces end on a null polygonal contour at the boundary of AdS. We show how to compute the area of the surfaces as a function of the conformal cross ratios characterizing the polygon at the boundary. We reduce the problem to a simple set of functional equations for the cross ratios as functions of the spectral parameter. These equations have the form of Thermodynamic Bethe Ansatz equations. The area is the free energy of the TBA system. We consider any number of gluons and in any kinematic configuration.
description: 69 pages, 19 figures, v2: references added, minor additions
Anthropic constraints on the cosmological constant from Sun's motion through the Milky Way
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We tentatively look at anthropic constraints on the Cosmological Constant (CC) Λat galactic scales by investigating its influence on the motion of the Sun throughout the Milky Way (MW) for -4.5 <= t <=0 Gyr. In particular, we look at the Galactocentric distance at which the Sun is displaced at the end of the numerical integration of its equations of motion modified in order to include the effect of Λas well. Values of it placing our star at its birth at more than 10 kpc from the Galactic center (GC) are to be considered implausible, according to the current views on the Galactic Habitable Zone (GHZ) on the metallicity level needed for stars' formation. Also values yielding too close approaches to GC should be excluded because of the risks to life's evolution coming from too much nearby supernovae (SN) explosions and Gamma Ray Bursts (GRB). We investigate the impact on our results of the uncertainties on both the MW model's parameters and the Sun's initial conditions, in particular the Hubble parameter H_0 and the Local Standard Rest (LSR) speed Θ_0 accurate at 2% and 6.2% level, respectively. While H_0=70.1 km s^-1 Mpc^-1, Θ_0=254 km s^-1 and Λ<= 10^-55 cm^-2 locates the place of birth of the Sun at 19.6 kpc from GC, the same values for H_0 and Λ, and Θ_0^max=270 km s^-1, places it at the plausible Galactocentric distance of 8.5 kpc. Λ= 10^-54 cm^-2 and Λ= 10^-53 cm^-2 place the Sun at 10.6 kpc and 18.7 kpc, respectively.
description: LaTex2e, 3 tables, no figures, 5 pages. Accepted by Monthly Notices of the Royal Astronomical Society (MNRAS)
On the growth and stability of Trojan planets
Creators: name: Cresswell, Paul
name: Nelson, Richard P.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the stability of those low-mass Trojan planets that form in a protoplanetary disc and subsequently accrete gas to become gas giants. We calculate their evolution before, during, and after gas disc dispersal. A two-dimensional hydrodynamics code combined with an N-body solver is used to evolve the system of disc and planets. Gas disc dispersal is simulated in a simple manner by assuming global exponential decay of the disc mass, leading to the stalling of migration after semi-major axes have approximately halved from their initial values. We consider Trojan pairs with different initial masses and gas accretion rates and gas disc models with different masses and viscosities. An N-body code, adapted to model disc forces, is used to examine large-scale migration and the formation of very short period Trojan planets. For each combination of planetary pair and disc model that we consider in our hydrodynamic simulations, each Trojan system remains stable before, during, and after disc dispersal. The long-term stability of these systems in the absence of gas is tested using N-body simulations, and all systems remain stable for those evolution times equal to 10^9 years. Eccentricities remain low (e<0.02) in all cases. Increases in the amplitude of libration about the L4/L5 Lagrange points accompany the inward migration, and during very large-scale migration Trojan systems may be disrupted prior to the onset of disc dispersal. The stability of Trojan pairs during rapid type I migration, during the transition to type II migration with the accompanying gap formation in the gas disc, and during gas loss when the disc disperses, indicates that isolated Trojan planet systems are very stable. If a common mechanism exists for their formation, we suggest they may be readily observed in nature.
description: 7 pages, 4 figures. Accepted for publication in A&A
An investigation of object permanence and its relationship to smooth pursuit eye movement
Creators: name: Scanlan, MK
Publisher: name: University Of Tasmania
Year: 2023

description: The aim of the present thesis was to investigate the role of 'object permanence' in smooth pursuit eye movement in humans. Churchland, Chou, and Lisberger (2003) found that smooth pursuit eye velocity was maintained in monkeys when target motion was occluded by an object in comparison to a condition where target motion was briefly removed, suggesting that object permanence may facilitate the maintenance of smooth pursuit velocity. In the present thesis, two smooth pursuit eye velocity intervals were measured in nine conditions. In each condition the motion of a target was interrupted for 200ms, either by removal in a series of gap-like conditions, or occlusion by a real object, a computer-generated object, or an illusory object stimulus. Baseline smooth pursuit eye velocity was also recorded without target interruption. Eye velocity was measured at two intervals: 100ms pre-interruption and 120ms post-interruption, and the difference between these intervals yielded a Mean Change in Eye Velocity value. Analyses partially supported the findings of Churchland et al., with Mean Change in Eye Velocity in the Gap condition significantly greater than Baseline smooth pursuit eye movement. However, no such difference was found between Baseline and the computer generated Object, Real Object, or Illusory Object conditions. Overall, there was a clear, though non-statistically significant, pattern in the raw data indicating that object permanence may play a role in allowing smooth pursuit eye velocity maintenance as suggested by Churchland et al., and it is proposed that the eye velocity memory component of their model may function on a continuum of engagement. It was concluded that the findings provide some evidence for object permanence promoting the maintenance of human smooth pursuit eye velocity when an object blocks the perception of target motion
title: Automated Reverse Engineering of Malware to Develop Network Signatures to Match with Known Network Signatures
Creators: name: Sinema, Dan
Publisher: name: Utah State University
Year: 2014

description: Illicit software that seeks to steal user information, deny service, or cause general mayhem on computer networks is often discovered after the damage has been done. The ability to discover network behavior of software before a computer network is utilized would allow administrators to protect and preserve valuable resources. Static reverse engineering is the process of discovering in a offline environment how a software application is built and how it will behave. By automating static reverse engineering, software behavior can be discovered before it is executed on client devices. Fingerprints are then built from the discovered behavior which is matched with known malicious fingerprints to identify potentially dangerous software.
Redetermination of EuScO3
Creators: name: Kahlenberg, V.
name: Maier, D.
name: Veličkov, B.
Publisher: name: Chester : International Union of Crystallography
Year: 2009
Subjects: subject: Crystal structure
subject: Chemistry
subject: Crystallography
subject: 540

description: Single crystals of europium(III) scandate(III), with ideal formula EuScO3, were grown from the melt using the micro-pulling-down method. The title compound crystallizes in an ortho-rhom-bic distorted perovskite-type structure, where Eu occupies the eightfold coordinated A sites (site symmetry m) and Sc resides on the centres of corner-sharing [ScO6] octa-hedra (B sites with site symmetry ). The structure of EuScO3 has been reported previously based on powder diffraction data [Liferovich & Mitchell (2004). J. Solid State Chem. 177, 2188-2197]. The results of the current redetermination based on single-crystal diffraction data shows an improvement in the precision of the structral and geometric parameters and reveals a defect-type structure. Site-occupancy refinements indicate an Eu deficiency on the A site coupled with O defects on one of the two O-atom positions. The crystallochemical formula of the investigated sample may thus be written as A(0.032Eu0.968)BScO2.952.
title: A Strange Kind of Dying
Creators: name: Sitton, Christina M.
Publisher: name: Utah State University
Year: 2014

description: Fragmentation is a basic symptom of loss, and poetry naturally reflects this disjointing and destructive effect. The fracturing within the poetic form reflects the internal and repeated fracturing effects of trauma on one's own life. In this poetry collection, A Strange Kind of Dying, the speaker is bound by the question, "How is it that I can piece myself back together?" The collection of poetry is meant to help the speaker to find healing from the fragmentation through language. The work is intended to be an act of transfer, passing on one human experience to another.
The structure of the poems are eclectic in style to reflect the themes of fragmentation, disruption, and separation, making a strong connections between theme, content, and form. To achieve this aesthetic, I incorporate the formal and tonal qualities found within the poetic stylings of the lyric, elegiac, formalist, and confessional. By overlaying the above mentioned styles, tones, forms, and poetic concerns, I believe that my works contribute to poetry because it is a contemporary, poetic representation of the destroyed self. That is, it is an expression of how someone of today, in our modern, technological, and fast paced world, deals with the halting, and at time, paralyzing effects of loss, grief and trauma.
Flexible Transparent Barrier Applications of Oxide Thin Films Prepared by Photochemical Conversion at Low Temperature and Ambient Pressure
Creators: name: With, Patrick C.
name: Helmstedt, Ulrike
name: Prager, Lutz
Publisher: name: Lausanne : Frontiers Media
Year: 2020
Subjects: subject: encapsulation
subject: flexible electronics
subject: gas permeation barriers
subject: metal oxide
subject: polymer substrates
subject: thin films
subject: UV photoconversion
subject: wet coating
subject: 620

description: Photoconversion of metal-organic precursors to thin film metal oxides using ultraviolet (UV) radiation in oxidative atmosphere is an attractive technology because it can be applied at temperatures <80°C and at ambient pressure. Thus, it enables preparing this class of thin films in a cost-efficient manner on temperature sensitive substrates such as polymer films. In this article, various aspects of research and development in the field of photochemical thin-film fabrication, with particular focus to the application of the produced films as gas permeation barriers for the encapsulation of optoelectronic devices are reviewed. Thereby, it covers investigations on fundamental photochemically initiated reactions for precursor classes containing metal-oxygen and metal-nitrogen bonds, and emphazises the relevance of that understanding for applicative considerations like integration of the single-layer barrier films into relevant encapsulation films. Further perspectives are given concerning integration of additional functionalities like electrical conductivity to the flexible and transparent barrier films. © Copyright © 2020 With, Helmstedt and Prager.
Additional file 1 of Reliability of maternal recall of delivery and immediate newborn care indicators in Sarlahi, Nepal
Creators: name: Carter, Emily D.
name: Chang, Karen T.
name: Mullany, Luke C.
name: Subarna K. Khatry
name: LeClerq, Steven C.
name: Munos, Melinda K.
name: Katz, Joanne
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer

description: Additional file 1: Supplementary Questionnaire 1. Questions used in initial survey. Supplementary Questionnaire 2. Questions used in follow-up survey. Supplementary Figure 1. Flowchart of participant selection; Supplementary Table 1. Characteristics of sample, stratified by site of delivery. Supplementary Table 2. Reliability of maternal report of immediate newborn care indicators treating “don’t know” as response category. Supplementary Table 3. Reliability of maternal report of immediate newborn care indicators treating “don’t know” as response category, by site of delivery. Supplementary Table 4. Coverage of intervention and measures of maternal report, by site of delivery. Supplementary Table 5. Characteristics associated with maternal over-reporting. Supplementary Table 6. Characteristics associated with maternal over-reporting, by site of delivery. Supplementary Table 7. Characteristics associated with maternal under-reporting. Supplementary Table 8. Characteristics associated with maternal under-reporting, by site of delivery
title: Treatment of USU Dairy Wastewaters by Lagoon Intermittent Sand Filtration
Creators: name: Claus, Eric M.
Publisher: name: Utah State University
Year: 1980

description: A study of the feasibility of lagoon-intermittent sand filter treatment of dairy wastewaters from the Utah State University dairy was performed from 1978 through 1980. The report also includes an analysis of alternative dairy wastewater treatment systems utilizing a computer model.
A simple and inexpensive method of dairy wastewater treatment is needed so that the small (50- 300 cows) dairy farmer can meet the 30 mg/ ~ of BODs federal effluent standard and still earn a profit. The influent to the USU dairy treatment system, the lagoon effluent and the filter effluent were sampled during the summers of 1978 and 1979 for BODs, suspended solids and volatile suspended solids. The data show that removal efficiencies over 90 percent were achieved by the lagoon-intermittent sand filter system, but the effluent BODs and suspended solids concentrations did not meet the federal standards.
The high effluent concentrations were a result of the lagoon being overloaded. The treatment system's construction allowed runoff, groundwater and milking center washwater to enter the lagoon causing greater than expected hydraulic and organic mass loading rates. Despite high influent concentrations the intermittent sand filters consistently removed 80 percent of the suspended solids from the lagoon effluent. If the quality of the lagoon effluent were improved by reducing the organic mass loading rate, the effluent from lagoon intermittent sand filter treatment of dairy wastewaters would meet the federal standards.
Production of $^{93,94,95,96}$Tc through $^{7}$Li+$^{nat}$Zr and $^{9}$Be+$^{nat}$Y reactions: Measurement of excitation functions
Creators: name: Maiti, Moumita
name: Lahiri, Susanta
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: For the first time two separate production routes of Tc radionuclides have been studied bombarding $^{7}$Li on $^{nat}$Zr and $^{9}$Be on $^{89}$Y. Excitation functions of the evaporation residues produced in those reactions have been measured using stacked-foil technique followed by the $γ$-spectrometric studies in the energy range 37-45 MeV and 30-48 MeV respectively. Measured excitation functions have been compared with those calculated using the nuclear reaction model codes PACE-II and ALICE91. Experimental results show good agreement with the theoretical predictions. Compound nuclear reaction is the key mechanism in producing evaporation residues.
description: 13 pages, 6 figures
title: This Grief I Cannot Hold
Creators: name: Widerburg, MaryAnn
Publisher: name: Utah State University
Year: 2014

description: At seventeen, I lost my fourteen-year old brother in a shooting accident. After hearing the news of my brother’s death, my Great Aunt Mary wrote a letter to my family. The one line I remember was “I’ve heard that it takes three years to heal from the passing of a loved one.” Five years after Jacob’s death, I was once again confronted with losing a brother. Jaxon was born and died within twenty-four hours. I hadn’t yet “healed” from Jacob’s death, and I didn’t know how to do so.
The elusive nature of memory when confronted with personal trauma calls into question issues of identity. Does the previous self still exist after loss? In this memoir I document the impact of tragic grief and how death not only informs how we perceive the future, but how we interpret our past selves. Through the tri-part structure, I experiment with viewpoint, beginning with a first person “I,” struggling to fit my brothers’ deaths into a single narrative line. From here, the narrative shatters as I reflect upon my childhood self with a different lens and the distance of third person--the self being so fractured, there is no “I” left. Finally, the memoir moves to direct address, speaking to Jacob. Jacob is now a “you,” an alive and vibrant presence that becomes a part of the narrator as she explores her grief and begins to piece herself back together. Through this exploration, she discovers that “healing” is complex and that art can both aid in the process and chart the path.
Hydrodynamic theory of coupled current and magnetization dynamics in spin-textured ferromagnets
Creators: name: Wong, Clement H.
name: Tserkovnyak, Yaroslav
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We develop the hydrodynamical theory of collinear spin currents coupled to magnetization dynamics in metallic ferromagnets. The collective spin density couples to the spin current through a U(1) Berry-phase gauge field determined by the local texture and dynamics of the magnetization. We determine phenomenologically the dissipative corrections to the equation of motion for the electronic current, which consist of a dissipative spin-motive force generated by magnetization dynamics and a magnetic texture-dependent resistivity tensor. The reciprocal dissipative, adiabatic spin torque on the magnetic texture follows from the Onsager principle. We investigate the effects of thermal fluctuations and find that electronic dynamics contribute to a nonlocal Gilbert damping tensor in the Landau-Lifshitz-Gilbert equation for the magnetization. Several simple examples, including magnetic vortices, helices, and spirals, are analyzed in detail to demonstrate general principles.
description: 14 pages, 4 figures
Stability of the pentaquark in a naive string model
Creators: name: Richard, Jean-Marc
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The pentaquark is studied in a simple model of confinement where the quarks and the antiquark are linked by flux tubes of minimal cumulated length, and the Coulomb-like interaction, the spin-dependent terms and the antisymmetrization constraints are neglected.. The ground-state is found to be stable against spontaneous dissociation into a meson and a baryon, both in the case of five equal-mass constituents and for a static quark or antiquark surrounded by four equal masses.
description: 8 pages, 2 figures, minor corrections, references added, to appear in Phys. Rev. C
Quantum well infrared photodetectors hardiness to the non ideality of the energy band profile
Creators: name: Lhuillier, Emmanuel
name: Pere-Laperne, Nicolas
name: Ribet-Mohamed, Isabelle
name: Rosencher, Emmanuel
name: Patriarche, Gilles
name: Buffaz, Amandine
name: Berger, Vincent
name: Nedelcu, Alexandru
name: Carras, Mathieu
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We report results on the effect of a non-sharp and disordered potential in Quantum Well Infrared Photodetectors (QWIP). Scanning electronic transmission microscopy is used to measure the alloy profile of the structure which is shown to present a gradient of composition along the growth axis. Those measurements are used as inputs to quantify the effect on the detector performance (peak wavelength, spectral broadening and dark current). The influence of the random positioning of the doping is also studied. Finally we demonstrate that QWIP properties are quite robust with regard to the non ideality of the energy band profile.
Additional file 1 of Decreased Vascular Bundle 1 affects mitochondrial and plant development in rice
Creators: name: Zhang, Lisha
name: Feng, Ping
name: Deng, Yao
name: Wuzhong Yin
name: Yingchun Wan
name: Lei, Ting
name: Guanghua He
name: Wang, Nan
Publisher: name: figshare
Year: 2021
Subjects: subject: Plant Biology
subject: FOS: Biological sciences

description: Additional file 1: Fig. S1. Root length of WT and dvb1. Fig. S2. Anthers and pollens in dvb1. Fig. S3. Narrowed leaves in dvb1. Fig. S4. Flower primordia and branches in dvb1. Fig. S5. Phylogenetic tree of DVB1. Fig. S6. Subcellular localization of DVB1 protein in Nicotiana benthamiana. Fig. S7. Subcellular localization of DVB1G90E. Table S1. Peptide sequences used for constructing the NJ tree. Table S2. Primer sequences used in this study.