cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Remarks On The Spherical Scalar Field Halo In Galaxies
Creators: name: Nandi, Kamal K.
name: Valitov, Ildar
name: Migranov, Nail G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Matos, Guzman and Nunez proposed a model for the galactic halo within the framework of scalar field theory. We argue that an analysis involving the full metric can reveal the true physical nature of the halo only when a certain condition is maintained. We fix that condition and also calculate its impact on observable parameters of the model.
description: 6 pages, Accepted for publication in Physical Review D
Evaluating Two Approaches to Assessing Student Progress in Cybersecurity Exercises
Creators: name: Švábenský, Valdemar
name: Weiss, Richard
name: Cook, Jack
name: Vykopal, Jan
name: Čeleda, Pavel
name: Mache, Jens
name: Chudovský, Radoslav
name: Chattopadhyay, Ankur
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computers and Society (cs.CY)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences
subject: K.3.2

description: Cybersecurity students need to develop practical skills such as using command-line tools. Hands-on exercises are the most direct way to assess these skills, but assessing students' mastery is a challenging task for instructors. We aim to alleviate this issue by modeling and visualizing student progress automatically throughout the exercise. The progress is summarized by graph models based on the shell commands students typed to achieve discrete tasks within the exercise. We implemented two types of models and compared them using data from 46 students at two universities. To evaluate our models, we surveyed 22 experienced computing instructors and qualitatively analyzed their responses. The majority of instructors interpreted the graph models effectively and identified strengths, weaknesses, and assessment use cases for each model. Based on the evaluation, we provide recommendations to instructors and explain how our graph models innovate teaching and promote further research. The impact of this paper is threefold. First, it demonstrates how multiple institutions can collaborate to share approaches to modeling student progress in hands-on exercises. Second, our modeling techniques generalize to data from different environments to support student assessment, even outside the cybersecurity domain. Third, we share the acquired data and open-source software so that others can use the models in their classes or research.
description: ACM SIGCSE 2022 conference, 7 pages, 3 figures
Dispersal of protoplanetary disks by central wind stripping
Creators: name: Matsuyama, I.
name: Johnstone, D.
name: Hollenbach, D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a model for the dispersal of protoplanetary disks by winds from either the central star or the inner disk. These winds obliquely strike the flaring disk surface and strip away disk material by entraining it in an outward radial-moving flow at the wind-disk interface which lies several disk scale heights above the mid-plane. The disk dispersal time depends on the entrainment velocity at which disk material flows into this turbulent shear layer interface. If the entrainment efficiency is ~10% of the local sound speed, a likely upper limit, the dispersal time at 1 AU is ~6 Myr for a disk with a surface density of 10^3 g cm^{-2}, a solar mass central star, and a wind with an outflow rate 10^{-8} Msun/yr and terminal velocity 200 km/s. When compared to photoevaporation and viscous evolution, wind stripping can be a dominant mechanism only for the combination of low accretion rates (< 10^{-8} Msun/yr) and wind outflow rates approaching these accretion rates. This case is unusual since generally outflow rates are < 0.1 of of accretion rates.
description: 12 pages, 9 figures, accepted for publication in ApJ
Brief Report: No Evidence for an Association between Statin Use and Lower Biomarkers of HIV Persistence or Immune Activation/Inflammation during Effective ART
Creators: name: MacAtangay, B.J.C.
name: Lalama, C.
name: Hogg, E.
name: Mar, H.
name: Bosch, R.J.
name: Mellors, J.W.
name: Tebas, P.
name: Rinaldo, C.
name: Godfrey, C.
name: Eron, J.J.
name: Drechsler, H.
name: McMahon, D.K.
name: Hensel, C.
name: Collier, A.
name: Cyktor, J.C.
name: Bedimo, R.J.
name: Gandhi, R.T.
Publisher: name: Lippincott Williams and Wilkins
Year: 2019

description: Background: Statins exert pleiotropic anti-inflammatory and immune-modulatory effects, which might translate into antiviral activity. We evaluated whether reported current statin exposure is associated with lower levels of markers of HIV persistence and immune activation/inflammation. Methods: We compared levels of markers of HIV viral persistence [cell-associated HIV RNA (CA-RNA), CA-DNA, and single copy assay plasma HIV RNA] and immune activation/inflammation (IL-6, IP-10, neopterin, sCD14, sCD163, and TNF-alpha) between statin users and nonusers among participants of ACTG A5321 who initiated antiretroviral therapy (ART) during chronic infection and maintained virologic suppression (HIV-1 RNA levels ≤50 copies/mL) for ≥3 years. Results: A total of 303 participants were analyzed. Median time on the current statin was 2.9 years (1.2-5.1). There were no differences between statin users and nonusers in levels of CA-DNA (median 650 vs. 540 copies/106 CD4+ T cells; P = 0.58), CA-RNA (53 vs. 37 copies/106 CD4+ T cells; P = 0.12), or single copy assay (0.4 vs. 0.4 copies/mL; P = 0.45). Similarly, there were no significant differences between statin users and nonusers in markers of inflammation/activation, except for IP-10 (137 vs. 118 pg/mL; P = 0.028). Findings were unchanged after adjustment for factors including pre-ART CD4 and HIV RNA, and years on ART. Conclusions: In this cohort of persons on long-term suppressive ART, current statin use was not associated with lower levels of HIV persistence or immune activation/inflammation. These results do not support a major role for statins in reducing HIV persistence, although an early transient effect cannot be excluded. Prospective, randomized studies are needed to confirm these findings.
LLS: Local Learning Rule for Deep Neural Networks Inspired by Neural Activity Synchronization
Creators: name: Apolinario, Marco Paul E.
name: Roy, Arani
name: Roy, Kaushik
Publisher: name: arXiv
Year: 2024
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Training deep neural networks (DNNs) using traditional backpropagation (BP) presents challenges in terms of computational complexity and energy consumption, particularly for on-device learning where computational resources are limited. Various alternatives to BP, including random feedback alignment, forward-forward, and local classifiers, have been explored to address these challenges. These methods have their advantages, but they can encounter difficulties when dealing with intricate visual tasks or demand considerable computational resources. In this paper, we propose a novel Local Learning rule inspired by neural activity Synchronization phenomena (LLS) observed in the brain. LLS utilizes fixed periodic basis vectors to synchronize neuron activity within each layer, enabling efficient training without the need for additional trainable parameters. We demonstrate the effectiveness of LLS and its variations, LLS-M and LLS-MxM, on multiple image classification datasets, achieving accuracy comparable to BP with reduced computational complexity and minimal additional parameters. Specifically, LLS achieves comparable performance with up to $300 \times$ fewer multiply-accumulate (MAC) operations and half the memory requirements of BP. Furthermore, the performance of LLS on the Visual Wake Word (VWW) dataset highlights its suitability for on-device learning tasks, making it a promising candidate for edge hardware implementations.
description: 12 pages, 4 figures
I-WKNN: Fast-Speed and High-Accuracy WIFI Positioning for Intelligent Stadiums
Creators: name: Zhao, Zhangzhi
name: Lou, Zhengying
name: Wang, Ruibo
name: Li, Qingyao
name: Xu, Xing
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Based on various existing wireless fingerprint location algorithms in intelligent sports venues, a high-precision and fast indoor location algorithm improved weighted k-nearest neighbor (I-WKNN) is proposed. In order to meet the complex environment of sports venues and the demand of high-speed sampling, this paper proposes an AP selection algorithm for offline and online stages. Based on the characteristics of the signal intensity distribution in intelligent venues, an asymmetric Gaussian filter algorithm is proposed. This paper introduces the application of the positioning algorithm in the intelligent stadium system, and completes the data acquisition and real-time positioning of the stadium. Compared with traditional WKNN and KNN algorithms, the I-WKNN algorithm has advantages in fingerprint positioning database processing, environmental noise adaptability, real-time positioning accuracy and positioning speed, etc. The experimental results show that the I-WKNN algorithm has obvious advantages in positioning accuracy and positioning time in a complex noise environment and has obvious application potential in a smart stadium.
Full Configuration Interaction wave function as a formal solution to the Optimized Effective Potential and Kohn-Sham models in finite basis sets
Creators: name: Rohr, Daniel R.
name: Savin, Andreas
Publisher: name: arXiv
Year: 2009
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Using finite basis sets, it is shown how to construct a local Hamiltonian, such that one of its infinitely many degenerate eigenfunctions is the ground state full configuration interaction (FCI) wave function in that basis set. Formally, the local potential of this Hamiltonian is the optimized effective potential and the exact Kohn-Sham potential at the same time, because the FCI wave function yields the exact ground-state density and energy. It is not the aim of this paper to provide a new algorithm for obtaining FCI wave functions. A new potential is the goal.
On possible a-priori "imprinting" of General Relativity itself on the performed Lense-Thirring tests with LAGEOS satellites
Creators: name: Iorio, Lorenzo
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Geophysics (physics.geo-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The impact of possible a-priori "imprinting" effects of general relativity itself on recent attempts to measure the Lense-Thirring precessions with the LAGEOS satellites orbiting the Earth and the terrestrial geopotential models by the dedicated mission GRACE is investigated. It is analytically shown that general relativity, not explicitly solved for in the GRACE-based models, may "imprint" their even zonal harmonic coefficients J_L at a non-negligible level, given the present-day accuracy in recovering them. This translates into a bias of the LAGEOS-based relativistic tests as large as the Lense-Thirring effect itself. Further analyses should include general relativity itself in the GRACE data processing by explicitly solving for it.
description: LaTex2e, 13 pages, no figures, 3 tables, 44 references. Invited paper, to appear in Communications and Network (CN)
The Service of Federal Grain Standards
Creators: name: Bureau Of Agricultural Economics
name: Bureau Of Agricultural Economics
Publisher: name: Unknown
Year: 1938
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business

description: Excerpts from the report: From the 1880' s down to the World War the story of grain marketing was one of growing chaos in respect to grades and inspection. The system was very hard on the farmer. It also led finally to serious complaints from foreign buyers. The United States Grain Standards Act was passed by Congress August 11, 1916. Its purpose was to set up a system of uniform grading under Federal supervision. Under this act the United States Department of Agriculture established official standards which are now in force for wheat, corn, barley, rye, oats, Feed Oats, Mixed Feed Oats, grain sorghums, flaxseed, and Mixed Grain. The Federal grading system applies to grain sold and shipped by grade in interstate or foreign commerce. Practically all grain received at the terminal markets is graded and warehoused according to the Federal grain standards.
title: Αντίστροφη μηχανική αντικειμένου με τη χρήση του NextEngine 3D scanner και του λογισμικού Siemens NX
title: Reverse engineer object with use to nextengine 3D scanner and the software Siemens NX
Creators: name: Αθανασιου Νικολαος
Publisher: name: Technical University of Crete
Year: 2021

description: Στις μέρες μας, οι βιομηχανικές επιχειρήσεις έχουν ως στόχο να μειώσουν τον χρόνο και το κόστος σχεδίασης, ανάπτυξης και παραγωγής ενός προϊόντος. Την προσπάθεια αυτή βοηθά η χρήση και η εξέλιξη των συστημάτων σχεδιομελέτης με χρήση Η/Υ - CAD/CAM. Η αντίστροφη μηχανική (reverse engineering) ανήκει σε αυτά τα συστήματα και επιτυγχάνει τη δημιουργία του ψηφιακού μοντέλου ενός αντικειμένου/ προιόντος που ήδη υπάρχει, αλλά τα κατασκευαστικά του σχέδια και/ή το τρισδιάστατο μοντέλο του δεν υπάρχουν.
Η παρούσα διπλωματική εργασία πραγματεύεται την αντίστροφη μηχανική ενός πρισματικού αντικειμένου με τη χρήση του σαρωτή NextEngine και του λογισμικού του ScanStudio και τη μετέπειτα επεξεργασία του σε σύστημα CAD.
Το αρχείο που εξάγεται από το λογισμικό του σαρωτή μεταφέρεται στο σύστημα CAD NX Siemens, για να δημιουργηθεί το μοντέλο του αντικειμένου, κάνοντας χρήση της εφαρμογής Reverse Engineering του ΝΧ. Αναλύονται τα στάδια επεξεργασίας και επισημαίνονται οι αδυναμίες του λογισμικού για την μετατροπή του μοντέλου σάρωσης σε 3D μοντέλο CAD.

description: Today, the aim of most industrial enterprises is to reduce the time and the total cost for the design, development and production of their products. The use and evolution of CAD/CAM systems contribute to this purpose. The reverse engineering process is included in these systems and succeeds in creating the digital model of an existing part/ product but the design documentation and/or the 3D model do not exist. This final year thesis deal with the reverse engineering process of a prismatic part through the use of the NextEngine 3D scanner and the proprietary software ScanStudio. The file extracted from the scanner software is transferred to the Siemens CAD NX system, to create the CAD part model, using the NX Reverse Engineering application. The processing steps are analyzed and the weaknesses of the software for converting the scan model to 3D CAD model are pointed out.
Association Between Bilirubin, Atazanavir, and Cardiovascular Disease Events Among People Living With HIV Across the United States
Creators: name: Ritchings, C.
name: Drozd, D.R.
name: Moore, R.D.
name: Rosenblatt, L.
name: Crane, H.M.
name: Ho, E.L.
name: Kim, H.N.
name: Zunt, J.R.
name: Nance, R.M.
name: Kitahata, M.M.
name: Tirschwell, D.L.
name: Huffer, A.
name: Hunt, P.W.
name: Burkholder, G.A.
name: Whitney, B.M.
name: Saag, M.S.
name: Kalani, R.
name: Delaney, J.A.C.
name: Mathews, W.C.
name: Becker, K.J.
name: Budoff, M.
name: Geng, E.
name: Wood, B.R.
name: Eron, J.J.
name: Chow, F.C.
name: Heckbert, S.R.
Publisher: name: Lippincott Williams and Wilkins
Year: 2019

description: Objective: Bilirubin is an antioxidant that may suppress lipid oxidation. Elevated bilirubin is associated with decreased cardiovascular events in HIV-uninfected populations. We examined these associations in people living with HIV (PLWH). Methods: Potential myocardial infarctions (MIs) and strokes were centrally adjudicated. We examined MI types: type 1 MI (T1MI) from atherosclerotic plaque instability and type 2 MI (T2MI) in the setting of oxygen demand/supply mismatch such as sepsis. We used multivariable Cox regression analyses to determine associations between total bilirubin levels and outcomes adjusting for traditional and HIV-specific risk factors. To minimize confounding by hepatobiliary disease, we conducted analyses limited to bilirubin values <2.1 mg/dL; among those with fibrosis-4 values <3.25; and among everyone. We repeated analyses stratified by hepatitis C status and time-updated atazanavir use. Results: Among 25,816 PLWH, there were 392 T1MI and 356 T2MI during follow-up. Adjusted hazard ratios for the association of higher bilirubin levels with T1MI were not significant. Higher bilirubin levels were associated with T2MI. By contrast, among PLWH on atazanavir, higher bilirubin levels were associated with fewer T2MI (hazard ratio 0.56:0.33-1.00). Higher bilirubin levels among those on atazanavir were associated with fewer T1MI combined with ischemic stroke. Limitations: Analyses were conducted with total rather than unconjugated bilirubin. Conclusions: Among PLWH, higher bilirubin levels were associated with T2MI among some subgroups. However, among those on atazanavir, there was a protective association between bilirubin and T2MI. These findings demonstrate different associations between outcomes and elevated bilirubin due to diverse causes and the importance of distinguishing MI types.
Anderson localization in a correlated fermionic mixture
Creators: name: Fialko, O.
name: Ziegler, K.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: A mixture of two fermionic species with different masses is studied in an optical lattice. The heavy fermions are subject only to thermal fluctuations, the light fermions also to quantum fluctuations. We derive the Ising-like distribution for the heavy atoms and study the localization properties of the light fermions numerically by a transfer-matrix method. In a two-dimensional system one-parameter scaling of the localization length is found with a transition from delocalized states at low temperatures to localized states at high temperature. The critical exponent of the localization length is $ν\approx 0.88$.
description: 5 pages, 4 figures
The effect of current on natural periphyton communities
Creators: name: Oguss, Emily
Publisher: name: University of British Columbia
Year: 2011

description: The effect of current on loss rates of periphyton tissue was studied in three different flow-controlled streams in British Columbia. Artificial substrates were exposed to constant currents ranging from 3.0 to 121.8 cm./sec. Indigenous periphyton species which colonized the substrates were labeled with inorganic P³³, and the loss of the label monitored for up to 46 days. Daily loss rates were calculated from these data. Graphing the daily loss rates against currents indicated a sigmoid relationship: very little effect of currents less than 20 cm./sec.; sharply increasing effect of currents between 20 and 80 cm./sec.; and a leveling off above 80 cm./sec. This model fits all three streams despite their many differences and is therefore interpreted as a general model of current effects on periphyton loss rates in natural streams. The component of loss due to invertebrate grazing is discussed. A computer simulation model of periphyton dynamics was used to compare different theories about other aspects of periphyton dynamics. This model differs from previous periphyton models in several important ways: (1) up to three algal species can be handled separately, rather than grouping all periphyton into one "quasi-organism", (2) changing colony morphology was used as a factor, (3) emphasis was put on the realism of each dynamic relationship rather than on mimicking total biomass data from specific streams. Three questions that are presently unsolved about periphyton dynamics are examined using the computer simulation program, and tentative answers are arrived at. A complete listing of the program plus the parameter list is included in the Appendixes.
Miras around the Galactic Center
Creators: name: Matsunaga, Noriyuki
name: team, IRSF/SIRIUS
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report results of our near-IR survey for variables in a field of view of 20 arcmin by 30 arcmin towards the Galactic Center (GC), where we detected 1364 long-period variables. We have established a method for the simultaneous estimation of distances and extinctions using the period-luminosity relations for the JHKs bands. Our method is applicable to Miras with periods in the range 100-350 days and mean magnitudes available in two or more filters. Here we discuss 143 Miras whose distances and extinctions were obtained based on their periods and H- and Ks-band magnitudes. We find that almost all of them are located at the same distance to within our accuracy, and the distance modulus of the GC is estimated to be 14.58+-0.02+-0.11 mag. The former error corresponds to the statistical error and the latter to the systematic one which includes the uncertainty of our assumed distance modulus of the LMC (18.45+-0.05 mag). We also discuss the large and highly variable extinction towards the GC.
description: To appear in the proceedings for the conference "Stellar Pulsation: Challenges for Theory and Observations" held in Santa Fe, USA
Real Time Monitoring and Control of Neonatal Incubator using IOT
Creators: name: El-Aziz, Rasha M. Abd
name: Taloba, Ahmed I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: The care of new born babies are the most important and sensitive part of bio-medical domain. Some new born babies have a higher risk of mortality due to their gestational age or their birth weight. Most of the premature babies born on 32-37 weeks of gestation and are deceased due to their unmet need for warmth. The neonatal incubator is a device used to nourish the premature babies by providing a controlled and closed environment. This incubator provides the babies with optimum temperature, relative humidity, optimum light and appropriate level of oxygen which are same as that in the womb. But babies in the incubators have a risk of losing those babies lives due to the improper monitoring of the it which causes accidents like gas leakage and short circuits due to overheating which leads to bursting of incubators. Thus, the objective of this paper is to overcome the drawbacks of an unmonitored incubator and develops an affordable and safe device for real-time monitoring of the neonatal incubator. a low cost yet effective apparatus for monitoring the important parameters like pulse rate, temperature, humidity, gas and light of the premature baby inside an incubator. The sensed data are passed to the doctors or nurses wirelessly by the Arduino UNO via Internet of Things (IoT) so as to take necessary actions at times to maintain an appropriate environment for the safety of the lives of premature babies.
Additional file 1 of Lactic acid bacteria isolated from women’ breast milk and infants’ faeces have appreciable immunogenic and probiotic potentials against diarrheagenic E. coli strains
Creators: name: Obisesan, Abiola O.
name: Abiodun, Oyindamola O.
name: Ayeni, Funmilola A.
Publisher: name: figshare
Year: 2024
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Supplementary Material 1
Darunavir/cobicistat/emtricitabine/tenofovir alafenamide in treatment-experienced, virologically suppressed patients with HIV-1: Subgroup analyses of the phase 3 EMERALD study
Creators: name: Dejesus, E.
name: Orkin, C.
name: Luo, D.
name: Van Landuyt, E.
name: Brown, K.
name: Eron, J.J.
name: Wong, E.Y.
name: Lathouwers, E.
name: Girard, P.-M.
name: Huhn, G.D.
name: Molina, J.-M.
name: Petrovic, R.
name: Nettles, R.E.
Publisher: name: BioMed Central Ltd.
Year: 2019

description: Background: Darunavir/cobicistat/emtricitabine/tenofovir alafenamide (D/C/F/TAF) 800/150/200/10 mg is a once-daily, single-tablet regimen for treatment of HIV-1 infection. The efficacy/safety of switching to D/C/F/TAF versus continuing boosted protease inhibitor (bPI) + emtricitabine/tenofovir disoproxil fumarate (control) were demonstrated in a phase 3, randomized study (EMERALD) of treatment-experienced, virologically suppressed adults through week 48. The objective of this analysis was to evaluate EMERALD outcomes across subgroups of patients based on demographic characteristics, prior treatment experience, and baseline antiretroviral regimen. Methods: EMERALD patients were virologically suppressed (viral load [VL] < 50 copies/mL for ≥ 2 months at screening). Prior non-darunavir virologic failure (VF) was allowed. Primary endpoint was proportion of patients with virologic rebound (confirmed VL ≥ 50 copies/mL) cumulative through week 48. Virologic response was VL < 50 copies/mL (FDA snapshot). Safety was assessed by adverse events, renal proteinuria markers, and bone mineral density. Outcomes were examined for prespecified subgroups by age (≤/> 50 years), gender, race (black/non-black), prior number of antiretrovirals used (4/5/6/7/> 7), prior VF (0/≥ 1), baseline bPI (darunavir/atazanavir or lopinavir), and baseline boosting agent (ritonavir/cobicistat). Results: Among 1141 patients in the D/C/F/TAF (n = 763) and control (n = 378) arms, virologic rebound rates (2.5% and 2.1%, respectively) were similar, and this was consistent across all subgroups. Virologic response rates ranged from 91 to 97% (D/C/F/TAF) and 89 to 99% (control) across all subgroups, with differences between treatment arms of 0 and 6%. Adverse event rates were low in both arms and across subgroups. Improvements in renal and bone parameters were observed with D/C/F/TAF across demographic subgroups. Conclusions: For treatment-experienced, virologically suppressed patients, switching to D/C/F/TAF was highly effective and safe, regardless of demographic characteristics, prior treatment experience, or pre-switch bPI.
Octet baryon masses and sigma terms from an SU(3) chiral extrapolation
Creators: name: Young, R. D.
name: Thomas, A. W.
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We report an analysis of the impressive new lattice simulation results for octet baryon masses in 2+1-flavor QCD. The analysis is based on a low order expansion about the chiral SU(3) limit in which the symmetry breaking arises from terms linear in the quark masses plus the variation of the Goldstone boson masses in the leading chiral loops. The baryon masses evaluated at the physical light quark masses are in remarkable agreement with the experimental values, with a model dependence considerably smaller than the rather small statistical uncertainty. From the mass formulae one can evaluate the sigma commutators for all octet baryons. This yields an accurate value for the pion-nucleon sigma commutator. It also yields the first determination of the strangeness sigma term based on 2+1-flavor lattice QCD and, in general, the sigma commutators provide a resolution to the difficult issue of fine-tuning the strange quark mass.
description: 4 pages, 2 figures, pdftex. v2: uncertainties from inputs quantified; small m_pi*L ensemble removed from analysis
Biaxial Mechanical Testing of Native and Glycosaminoglycan-Depleted Porcine Aortic Wall
Creators: name: Zunder, Dayna
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2021
Subjects: Porcine aorta
Biaxial mechanical testing
Glycosaminoglycans
Enzymatic degradation

description: A recent focus in the biomedical engineering field has been on developing models of in-vivo tissue responses to help better predict aortic wall mechanics, through numerical methods and simulation, towards improved prediction of aortic wall rupture. The structural influence of both collagen and elastin, integral components within the aortic wall, has been studied and is largely understood, but the contribution of glycosaminoglycans (GAGs) is still unclear. While it has been suggested that the swelling properties of GAGs may participate in the regulation of residual stresses in the aortic wall, whether or not GAGs affect the mechanical properties of the aortic wall is completely unknown. The present study was divided into two experiments: Experiment 1 (n=9) utilized planar biaxial testing to characterize arterial wall mechanics in native porcine aortas. The results of Experiment 1 highlight: (i) decreased tissue thickness moving distally, away from the heart; (ii) increased stiffness from the ascending aorta to the thoracic descending aorta; (iii) no difference in morphometry or stress-strain behaviour between samples excised from the anterior, posterior, and/or left and right lateral walls. Experiment 2 (n=8) employed identical testing parameters to characterize partial and fully enzymatically GAG-depleted tissue, to determine the influence of this macromolecule on aortic wall mechanics. The results of Experiment 2 highlight: (i) GAG content in the porcine aorta does not affect tissue mechanical properties measured from biaxial testing; (ii) enzymatic removal of GAGs does not influence morphometric parameters, including thickness and area. These findings will contribute to improving the fundamental understanding of aortic tissue mechanics by helping to determine the relationship between spatial dependency and mechanical response, and the relationship between individual aortic wall constituents and the overall mechanical behaviour of the aorta.
Cumulative antiretroviral exposure measured in hair is not associated with measures of HIV persistence or inflammation among individuals on suppressive ART
Creators: name: Horng, H.
name: Hogg, E.
name: Eron, J.J.
name: McMahon, D.K.
name: Louie, A.
name: Gandhi, M.
name: Gandhi, R.T.
name: Macatangay, B.J.C.
name: Bosch, R.J.
name: Hensel, C.
name: Mellors, J.W.
name: Stefanescu, A.
name: Fletcher, C.V.
name: Cyktor, J.C.
name: A5321 Team
name: Phung, N.
Publisher: name: Oxford University Press
Year: 2018

description: Data on the relationship of antiretroviral exposure to measures of human immunodeficiency virus (HIV) persistence are limited. To address this gap, multiple viral, immunologic, and pharmacologic measures were analyzed from individuals with sustained virologic suppression on therapy (median 7 years) in the AIDS Clinical Trials Group A5321 cohort. Among 110 participants on tenofovir-(TFV)-disoproxil-fumarate (TDF)/emtricitabine (FTC)-containing regimens, we found no significant correlation between hair concentrations of individual antiretrovirals (ARVs) in the regimen and measures of HIV persistence (plasma HIV-1 RNA by single copy assay, cell-associated-DNA, cell-associated RNA) or soluble markers of inflammation. These findings suggest that higher systemic ARV exposure may not impact HIV persistence or inflammation.
A Conversation with Murray Rosenblatt
Creators: name: Brillinger, David R.
name: Davis, Richard A.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: On an exquisite March day in 2006, David Brillinger and Richard Davis sat down with Murray and Ady Rosenblatt at their home in La Jolla, California for an enjoyable day of reminiscences and conversation. Our mentor, Murray Rosenblatt, was born on September 7, 1926 in New York City and attended City College of New York before entering graduate school at Cornell University in 1946. After completing his Ph.D. in 1949 under the direction of the renowned probabilist Mark Kac, the Rosenblatts' moved to Chicago where Murray became an instructor/assistant professor in the Committee of Statistics at the University of Chicago. Murray's academic career then took him to the University of Indiana and Brown University before his joining the University of California at San Diego in 1964. Along the way, Murray established himself as one of the most celebrated and leading figures in probability and statistics with particular emphasis on time series and Markov processes. In addition to being a fellow of the Institute of Mathematical Statistics and American Association for the Advancement of Science, he was a Guggenheim fellow (1965--1966, 1971--1972) and was elected to the National Academy of Sciences in 1984. Among his many contributions, Murray conducted seminal work on density estimation, central limit theorems under strong mixing, spectral domain methods and long memory processes. Murray and Ady Rosenblatt were married in 1949 and have two children, Karin and Daniel.
description: Published in at http://dx.doi.org/10.1214/08-STS267 the Statistical Science (http://www.imstat.org/sts/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Chaotic Motion near Black Hole and Cosmological Horizons
Creators: name: Giataganas, Dimitrios
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: It is known that certain types of particle motion near black hole horizons are chaotic while it has been proposed the existence of a universal bound for their Lyapunov exponent. We discuss the relation between chaos and inaffinity in presence of black hole and cosmological horizons. We argue that although a relation between the Lyapunov exponent and the generalized surface gravity appears naturally, in general there is no reason for the Lyapunov exponent of classical trajectories to be bounded in generic spacetimes with horizon. Moreover, we show that the de Sitter spacetime and cosmological horizons act as a nest of chaos in holography and we find that the Lyapunov exponent of the trajectories is related to the inaffinity in the same way for both cosmological and black hole horizons. This suggests that there is no distinction by the Lyapunov exponent between maximal chaos of black hole and cosmological horizons.
description: 16 pages
Adjusting Farm Family Living to the Impact of War Abroad and Home Defense
Creators: name: Bureau Of Home Economics
name: Bureau Of Agricultural Economics
name: Bureau Of Home Economics
name: Bureau Of Agricultural Economics
Publisher: name: Unknown
Year: 1940
Subjects: Agricultural and Food Policy
Farm Management
Food Security and Poverty

description: Excerpt from the report: If all the farm families of the Nation were to attack the problem of building a stronger farm people through improving living levels of the lower income groups in 1941, if they made effective use of all their own resources and those of the community, and if they worked with others in farm groups, much could be accomplished. Not that farm families, alone, can raise low income and banish economic insecurity; such problems are too far-reaching, too much a part of national and international difficulties. Help of the Government through carefully planned national agricultural policies and programs must be added to the efforts of farm people.
Additional file 3 of Secondary analysis of hand-offs in internal medicine using the I-PASS mnemonic
Creators: name: Huber, Aurélie
name: Moyano, Belinda
name: Blondon, Katherine
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Cell Biology
Molecular Biology
Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 3.
Repeat testing of low-level HIV-1 RNA: Assay performance and implementation in clinical trials
Creators: name: Eron, J.J.
name: Piontkowsky, D.
name: Martin, H.
name: Wei, L.
name: White, K.
name: Reiske, H.
name: Quirk, E.
name: Light, A.
name: Zhong, L.
name: Porter, J.
name: Garner, W.
name: Lindstrom, K.
name: Miller, M.D.
name: Plummer, A.
name: Tran-Muchowski, C.
Publisher: name: Lippincott Williams and Wilkins
Year: 2018

description: Objective: Assess the performance of HIV-1 RNA repeat testing of stored samples in cases of low-level viremia during clinical trials. Design: Prospective and retrospective analysis of randomized clinical trial samples and reference standards. Methods: To evaluate assay variability of the Cobas AmpliPrep/Cobas TaqMan HIV-1 Test, v2.0, three separate sources of samples were utilized: the World Health Organization (WHO) HIV reference standard (assayed using 50 independent measurements at six viral loads <200 copies/ml), retrospective analysis of four to six aliquots of plasma samples from four clinical trial participants, and prospective repeat testing of 120 samples from participants in randomized trials with low-level viremia. Results: The TaqMan assay on the WHO HIV-1 RNA standards at viral loads <200 copies/ml performed within the expected variability according to assay specifications. However, standards with low viral loads of 36 and 18 copies/ml reported values of ≥ 50 copies/ml in 66 and 18% of tests, respectively. In participants treated with antiretrovirals who had unexpected viremia of 50-200 copies/ml after achieving <50 copies/ml, retesting of multiple aliquots of stored plasma found <50 copies/ml in nearly all cases upon retesting (14/15; 93%). Repeat testing was prospectively implemented in four clinical trials for all samples with virologic rebound of 50-200 copies/ml (n = 120 samples from 92 participants) from which 42% (50/120) had a retest result of less than 50 copies/ml and 58% (70/120) retested ≥ 50 copies/ml. Conclusion: The TaqMan HIV-1 RNA assay shows variability around 50 copies/ml that affects clinical trial results and may impact clinical practice. In participants with a history of viral load suppression, unexpected low-level viremia may be because of assay variability rather than low drug adherence or true virologic failure. Retesting a stored aliquot of the same sample may differentiate between assay variability and virologic failure as the source of viremia. This retesting strategy could save time, money, and anxiety for patients and their providers, as well as decrease follow-up clinic visits without increasing the risk of virologic failure and resistance development.
Additional file 4 of Secondary analysis of hand-offs in internal medicine using the I-PASS mnemonic
Creators: name: Huber, Aurélie
name: Moyano, Belinda
name: Blondon, Katherine
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Cell Biology
Molecular Biology
Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 4.
Ionization and expansion dynamics of atomic clusters irradiated with short intense VUV pulses
Creators: name: Ziaja, B.
name: Wabnitz, H.
name: Wang, F.
name: Weckert, E.
name: Moeller, T.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Kinetic Boltzmann equations are used to model the ionization and expansion dynamics of xenon clusters irradiated with short intense VUV pulses. This unified model includes predominant interactions that contribute to the cluster dynamics induced by this radiation. The dependence of the evolution dynamics on cluster size, $N_{atoms}=20-90000$, and pulse fluence, $F=0.05-1.5$ J/cm$^2$, corresponding to intensities in the range, $10^{12}-10^{14}$ W/cm$^2$ and irradiation times, $\leq 50$ fs, is investigated. The predictions obtained with our model are found to be in good agreement with the experimental data. We find that during the exposure the cluster forms a shell structure consisting of a positively charged outer shell and a core of net charge equal to zero. The width of these shells depends on the cluster size. The charged outer shell is large within small clusters ($N_{atoms}=20,70$), and its Coulomb explosion drives the expansion of these clusters. Within the large clusters ($N_{atoms}=2500,90000$) the neutral core is large, and after the Coulomb explosion of the outer shell it expands hydrodynamically. Highly charged ions within the core recombine efficiently with electrons. As a result, we observe a large fraction of neutral atoms created within the core, its magnitude depending on the cluster size.
description: 4 pages, 2 figures
Additional file 2 of Secondary analysis of hand-offs in internal medicine using the I-PASS mnemonic
Creators: name: Huber, Aurélie
name: Moyano, Belinda
name: Blondon, Katherine
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Cell Biology
Molecular Biology
Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 2.
Diffusion stabilizes cavity solitons in bidirectional lasers
Creators: name: Perez-Arjona, Isabel
name: Sanchez-Morcillo, Victor
name: Redondo, Javier
name: Staliunas, Kestutis
name: Roldan, Eugenio
Publisher: name: arXiv
Year: 2009
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We study the influence of field diffusion on the spatial localized structures (cavity solitons) recently predicted in bidirectional lasers. We find twofold positive role of the diffusion: 1) it increases the stability range of the individual (isolated) solitons; 2) it reduces the long-range interaction between the cavity solitons. Latter allows the independent manipulation (writing and erasing) of individual cavity solitons.
description: submitted to Optics Express
Differentiation of Type 1 and Type 2 Myocardial Infarctions Among HIV-Infected Patients Requires Adjudication Due to Overlap in Risk Factors
Creators: name: Saag, M.S.
name: Rosenblatt, L.
name: Rodriguez, B.
name: Hsue, P.
name: Ritchings, C.
name: Mathews, W.C.
name: Kitahata, M.M.
name: Burkholder, G.A.
name: Mugavero, M.J.
name: Hunt, P.W.
name: Nance, R.M.
name: Eron, J.J.
name: Heckbert, S.R.
name: Budoff, M.
name: Drozd, D.R.
name: Feinstein, M.J.
name: Crane, H.M.
name: Delaney, J.A.C.
name: Moore, R.D.
name: Geng, E.
Publisher: name: Mary Ann Liebert Inc.
Year: 2018

description: The Universal Myocardial infarction (MI) definition divides MIs into different types. Type 1 MIs (T1MI) result spontaneously from atherosclerotic plaque instability. Type 2 MIs (T2MI) are due to secondary causes of myocardial oxygen demand/supply mismatch such as occurs with sepsis. T2MI are much more common among those with HIV than in the general population. T1MI and T2MI have different mechanisms, risk factors, and potential treatments suggesting that they should be distinguished to achieve a better scientific understanding of MIs in HIV. We sought to determine whether MI type could be accurately predicted by patient characteristics without adjudication in HIV-infected individuals. We developed a statistical model to predict T2MI versus T1MI using adjudicated events from six sites utilizing demographic characteristics, traditional cardiovascular, and HIV-related risk factors. Validation was assessed in a seventh site via mean calibration, and discrimination level was assessed by the area under the curve (AUC). Of 812 MIs, 388 were T2MI. HIV-related factors including hepatitis C infection were predictive of T2MI, whereas traditional cardiovascular risk factors including total cholesterol predicted T1MI. The score predicted 69 T2MI in the validation sample resulting in poor calibration, given that 90 T2MIs were observed. The development sample AUC was 0.75 versus 0.65 in the validation sample, suggesting relatively poor discrimination. The level of discrimination to predict MI type based on patient characteristics is insufficient for individual level prediction. Adjudication is required to distinguish MI types, which is necessary to advance understanding of this important outcome among HIV populations.
Global alignment for relation extraction in Microbiology
Creators: name: Tang, Anfu
name: Nédellec, Claire
name: Zweigenbaum, Pierre
name: Deléger, Louise
name: Bossy, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Other Quantitative Biology (q-bio.OT)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Biological sciences
subject: FOS: Computer and information sciences

description: We investigate a method to extract relations from texts based on global alignment and syntactic information. Combined with SVM, this method is shown to have a performance comparable or even better than LSTM on two RE tasks.
Turbulence-induced melting of a nonequilibrium vortex crystal in a forced thin fluid film
Creators: name: Perlekar, Prasad
name: Pandit, Rahul
Publisher: name: arXiv
Year: 2009
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: To develop an understanding of recent experiments on the turbulence-induced melting of a periodic array of vortices in a thin fluid film, we perform a direct numerical simulation of the two-dimensional Navier-Stokes equations forced such that, at low Reynolds numbers, the steady state of the film is a square lattice of vortices. We find that, as we increase the Reynolds number, this lattice undergoes a series of nonequilibrium phase transitions, first to a crystal with a different reciprocal lattice and then to a sequence of crystals that oscillate in time. Initially the temporal oscillations are periodic; this periodic behaviour becomes more and more complicated, with increasing Reynolds number, until the film enters a spatially disordered nonequilibrium statistical steady that is turbulent. We study this sequence of transitions by using fluid-dynamics measures, such as the Okubo-Weiss parameter that distinguishes between vortical and extensional regions in the flow, ideas from nonlinear dynamics, e.g., \Poincare maps, and theoretical methods that have been developed to study the melting of an equilibrium crystal or the freezing of a liquid and which lead to a natural set of order parameters for the crystalline phases and spatial autocorrelation functions that characterise short- and long-range order in the turbulent and crystalline phases, respectively.
description: 31 pages, 56 figures, movie files not included
Additional file 5 of Secondary analysis of hand-offs in internal medicine using the I-PASS mnemonic
Creators: name: Huber, Aurélie
name: Moyano, Belinda
name: Blondon, Katherine
Publisher: name: figshare
Year: 2024
Subjects: Medicine
Cell Biology
Molecular Biology
Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 5.