cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Chemical Kinetics Network for Lightning and Life in Planetary Atmospheres
Creators: name: Rimmer, Paul B
name: Helling, Christiane
Publisher: name: arXiv
Year: 2015
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: There are many open questions about prebiotic chemistry in both planetary and exoplanetary environments. The increasing number of known exoplanets and other ultra-cool, substellar objects has propelled the desire to detect life and prebiotic chemistry outside the solar system. We present an ion-neutral chemical network constructed from scratch, Stand2015, that treats hydrogen, nitrogen, carbon and oxygen chemistry accurately within a temperature range between 100 K and 30000 K. Formation pathways for glycine and other organic molecules are included. The network is complete up to H6C2N2O3. Stand2015 is successfully tested against atmospheric chemistry models for HD209458b, Jupiter and the present-day Earth using a simple 1D photochemistry/diffusion code. Our results for the early Earth agree with those of Kasting (1993) for CO2, H2, CO and O2, but do not agree for water and atomic oxygen. We use the network to simulate an experiment where varied chemical initial conditions are irradiated by UV light. The result from our simulation is that more glycine is produced when more ammonia and methane is present. Very little glycine is produced in the absence of any molecular nitrogen and oxygen. This suggests that production of glycine is inhibited if a gas is too strongly reducing. Possible applications and limitations of the chemical kinetics network are also discussed.
description: 138 pages, 19 figures, accepted to ApJS
MS Gr. class. c. 6 1457
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 col. 32. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Activity trends in young solar-type stars
Creators: name: Lehtinen, Jyri
name: Jetsu, Lauri
name: Hackman, Thomas
name: Kajatkari, Perttu
name: Henry, Gregory W.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study a sample of 21 young and active solar-type stars with spectral types ranging from late F to mid K and characterize the behaviour of their activity. We apply the continuous period search (CPS) time series analysis method on 16 to 27 years of photometry to estimate the surface differential rotation and determine the existence and behaviour of active longitudes and activity cycles on the stars. We supplement the time series results by calculating new $\log{R'_{\rm HK}}$ emission indices for the stars from high resolution spectroscopy. The photometric rotation period variations reveal a positive correlation between the relative differential rotation coefficient and the rotation period, but do not reveal any dependence of the differential rotation on the effective temperature of the stars. Secondary period searches reveal activity cycles in 18 of the stars and temporary or persistent active longitudes in 11 of them. The activity cycles fall into specific activity branches. We find a new split into sub-branches, indicating multiple simultaneously present cycle modes. Active longitudes appear to be present only on the more active stars. There is a sharp break at approximately $\log{R'_{\rm HK}}=-4.46$ separating the less active stars with long-term axisymmetric spot distributions from the more active ones with non-axisymmetric configurations. In seven out of eleven of our stars with clearly detected long-term non-axisymmetric spot activity the estimated active longitude periods are significantly shorter than the mean photometric rotation periods. This systematic trend can be interpreted either as a sign of the active longitudes being sustained from a deeper level in the stellar interior than the individual spots or as azimuthal dynamo waves exhibiting prograde propagation.
description: 24 pages, 14 figures
Constraints of Flat Spectrum Radio Quasars in the hadronic model: the case of 3C 273
Creators: name: Petropoulou, Maria
name: Dimitrakoudis, Stavros
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a method of constraining the properties of the $γ$-ray emitting region in flat spectrum radio quasars (FSRQs) in the one-zone proton synchrotron model, where the $γ$-rays are produced by synchrotron radiation of relativistic protons. We show that for low enough values of the Doppler factor $δ$, the emission from the electromagnetic (EM) cascade which is initiated by the internal absorption of high-energy photons from photohadronic interactions may exceed the observed $\sim$GeV flux. We use that effect to derive an absolute lower limit of $δ$; first, an analytical one, in the asymptotic limit where the external radiation from the broad line region (BLR) is negligible, and then a numerical one in the more general case that includes BLR radiation. As its energy density in the emission region depends on $δ$ and the region's distance from the galactic center, we use the EM cascade to determine a minimum distance for each value of $δ$. We complement the EM cascade constraint with one derived from variability arguments and apply our method to the FSRQ 3C 273. We find that $δ\gtrsim 18-20$ for $B \lesssim 30$ G and $\sim$day timescale variability; the emission region is located outside the BLR, namely at $r \gtrsim 10 R_{\rm BLR} \sim 3$ pc; the model requires at pc-scale distances stronger magnetic fields than those inferred from core shift observations; while the jet power exceeds by at least one order of magnitude the accretion power. In short, our results disfavour the proton synchrotron model for the FSRQ 3C 273.
description: 14 pages, 8 figures, MNRAS accepted
title: Investigating the use of natural products as potential antifungals
Creators: name: Shaw, Daisy
Publisher: name: University of Kent
Year: 2023

description: Rhizopus microsporusis a spore-forming filamentous fungus of the order Mucorales. Rhizopus species, are responsible for post-harvest rot of many soft fruits and vegetables, and are one of the aetiological agents causing the fatal disease mucormycosis. Given that Rhizopus spp. are naturally resistant to several commercial antifungal therapies, it is important that we find novel approaches to control the growth of these fungi. Here we investigate the antifungal activity ofsecreted metabolites from the Gram-negative bacterium Pseudomonas aeruginosa and the plant derived compound madecassic acid from the medicinal herb Centella asiatica, against R. microsporus. Both P. aeruginosa (PA01 and PA14) cells and supernatants displayed significant antifungal activity, killing 96% of the fungal spores, suggest that the bacterium secretes a molecule(s) with significant antifungal potential. Although P. aeruginosa secreted siderophores inhibited fungal growth via iron chelation, these siderophores were fungistatic, not fungicidal in the PA14 strain. Screening bacterial mutants in key secondary metabolites including phenazines, rhamnolipids, quinolones and polyhydroxyalkanoates, did not relieve the antifungal activity of the bacterium, suggesting these key virulence factors are not required for this effect. Pre-incubation of supernatant with spores before use as treatment against fresh spores showed removal of antifungal activity, suggesting that the fungus might metabolise or sequester the antifungal molecule. The plant-based molecule, madecassic acid exhibited antifungal activity against R. microsporus, Candida albicans and Cryptococcus neoformans with concentrations of 250 µM inhibiting growth for all three fungi. Our findings show that both P. aeruginosa and madecassic acid have potential for use as antifungal treatments alternative to those currently commercially available.
In-Situ Forming Implant as an Ultra-Long-Acting Innovative Drug Delivery System
Creators: name: Swords, William
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: In situ forming implants (ISFIs) are an innovative method of drug delivery that serve to overcome many of the issues faced by oral daily pills in HIV Pre-Exposure Prophylaxis (HIV PrEP). Specifically, the difficulty patients have with daily pill compliance to a daily regimen.  ISFI systems are subcutaneous injections that release drug over an extended period of time, which can potentially mitigate the variability in adherence to a daily pill for HIV Pre-Exposure Prophylaxis. The implants are composed of Poly(DL-lactide-co-glycolide) (PLGA) polymer, N-methyl-2-pyrrolidone (NMP), and an antiretroviral drug. Changing the composition of the ISFI formulation provides the ability to fine-tune drug release kinetics.  In this study we have investigated the effect of the following formulation parameters on drug release kinetics in vitro: 1) the ratio of glycolic acid (GA) to lactic acid (LA) of PLGA (85:15, 75:25, 65:35); 2) the molecular weight of PLGA (53 kDa, 27 kDa, 10 kDa); and 3) drug properties (Dolutegravir, Lamivudine, and Emtricitabine). Due to differences in the structure of glycolic acid and lactic acid, specifically an additional methyl side chain present in lactic acid that increases its hydrophobicity, the formulations with a higher proportion of glycolic acid will exhibit more hydrophilic qualities.  Thus, formulations with PLGA with a higher ratio of glycolic acid to lactic acid will undergo ester hydrolysis at a faster rate resulting in increased release kinetics. The formulation containing the highest PLGA MW exhibited markedly slower release kinetics of dolutegravir due to reduced degradation of the ester linkages over time. From the study investigating the effect of drug properties on its release from the ISFI, lamivudine and emtricitabine, hydrophilic drugs, released significantly faster than did dolutegravir, a hydrophobic drug. In addition to fine-tuning release kinetics through altering formulation parameters in the ISFI formulation, different co-solvents were tested with NMP in order to optimize dolutegravir’s solubility in the ISFI to meet the human dose requirement for HIV PrEP (i.e. DTG ≥ 300 mg/mL). Several co-solvents showed increased solubility compared to NMP alone (Tween 20, Dimethyl sulfoxide, Labrasol, Gelucire).
MS Gr. class. c. 6 1458
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 col. 33. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Open Source Software für den Qualitativen Sozialwissenschaftlichen Forschungsprozess
Creators: name: Gey, Ronny
Publisher: name: Zenodo
Year: 2020
Subjects: Open Source
Sozialwissenschaften
Qualitative Sozialforschung

description: Open Source Software für den Qualitativen Sozialwissenschaftlichen Forschungsprozess. Eine Übersicht über ausgewählte Open Source Werkzeuge für die einzelnen Schritte im Forschungsprozess wie Ideenfindung, Literaturverwaltung, Datenanalyse oder wissenschaftliches Schreiben. Design: Betterposter (Mike Morrison)
Multi-messenger astronomy of gravitational-wave sources with flexible wide-area radio transient surveys
Creators: name: Yancey, Cregg C.
name: Bear, Brandon E.
name: Akukwe, Bernadine
name: Chen, Kevin
name: Dowell, Jayce
name: Gough, Jonathan D.
name: Kanner, Jonah
name: Kavic, Michael
name: Obenberger, Kenneth
name: Shawhan, Peter
name: Simonetti, John H.
name: Taylor, Gregory B.
name: Tsai, Jr-Wei
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We explore opportunities for multi-messenger astronomy using gravitational waves (GWs) and prompt, transient low-frequency radio emission to study highly energetic astrophysical events. We review the literature on possible sources of correlated emission of gravitational waves and radio transients, highlighting proposed mechanisms that lead to a short-duration, high-flux radio pulse originating from the merger of two neutron stars or from a superconducting cosmic string cusp. We discuss the detection prospects for each of these mechanisms by low-frequency dipole array instruments such as LWA1, LOFAR and MWA. We find that a broad range of models may be tested by searching for radio pulses that, when de-dispersed, are temporally and spatially coincident with a LIGO/Virgo GW trigger within a $\usim 30$ second time window and $\usim 200 \mendash 500 \punits{deg}^{2}$ sky region. We consider various possible observing strategies and discuss their advantages and disadvantages. Uniquely, for low-frequency radio arrays, dispersion can delay the radio pulse until after low-latency GW data analysis has identified and reported an event candidate, enabling a \emph{prompt} radio signal to be captured by a deliberately targeted beam. If neutron star mergers do have detectable prompt radio emissions, a coincident search with the GW detector network and low-frequency radio arrays could increase the LIGO/Virgo effective search volume by up to a factor of $\usim 2$. For some models, we also map the parameter space that may be constrained by non-detections.
description: 31 pages, 4 figures
Nature of Possible Magnetic Phases in Frustrated Hyperkagome Iridate
Creators: name: Shindou, Ryuichi
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Based on Kitaev-Heisenberg model with Dzyaloshinskii-Moriya (DM) interactions, we studied nature of possible magnetic phases in frustrated hyperkagome iridate, Na$_4$Ir$_{3}$O$_8$ (Na-438). Using Monte-Carlo simulation, we showed that the phase diagram is mostly covered by two competing magnetic ordered phases; Z$_2$ symmetry breaking (SB) phase and Z$_6$ SB phase, latter of which is stabilized by the classical order by disorder. These two phases are separated by a first order phase transition line with Z$_8$-like symmetry. The critical nature at the Z$_6$ SB ordering temperature is characterized by the 3D XY universality class, below which U(1) to Z$_6$ crossover phenomena appears; the Z$_6$ spin anisotropy becomes irrelevant in a length scale shorter than a crossover length $Λ_*$ while becomes relevant otherwise. A possible phenomenology of polycrystalline Na-438 is discussed based on this crossover phenomena.
Quantum Critical Scaling for a Heisenberg Spin-$1/2$ Chain around Saturation
Creators: name: Jeong, M.
name: Rønnow, H. M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We demonstrate quantum critical scaling for an $S=1/2$ Heisenberg antiferromagnetic chain compound CuPzN in a magnetic field around saturation, by analysing previously reported magnetization [Y. Kono {\it et al.}, Phys. Rev. Lett. {\bf 114}, 037202 (2015)], thermal expansion [J. Rohrkamp {\it et al.}, J. Phys.: Conf. Ser. {\bf 200}, 012169 (2010)] and NMR relaxation data [H. Kühne {\it et al.}, Phys. Rev. B {\bf 80}, 045110 (2009)]. The scaling of magnetization is demonstrated through collapsing the data for a range of both temperature and field onto a single curve without making any assumption for a theoretical form. The data collapse is subsequently shown to closely follow the theoretically-predicted scaling function without any adjustable parameters. Experimental boundaries for the quantum critical region could be drawn from the variable range beyond which the scaled data deviate from the theoretical function. Similarly to the magnetization, quantum critical scaling of the thermal expansion is also demonstrated. Further, the spin dynamics probed via NMR relaxation rate $1/T_1$ close to the saturation is shown to follow the theoretically-predicted quantum critical behavior as $1/T_1\propto T^{-0.5}$ persisting up to temperatures as high as $k_\mathrm{B}T \simeq J$, where $J$ is the exchange coupling constant.
description: 5 pages
Engineering the Size of DNA Repair Inhibitor-Encapsulated Polymeric Nanoparticles to Improve the Therapeutic Index of Chemoradiotherapy
Creators: name: Yu, Stephanie
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: Nanoparticle (NP) delivery of chemotherapeutic drugs can be used to both improve tumor toxicity and reduce toxicity to normal tissue in chemo and chemoradiotherapy (CRT). However, various properties of nanoparticles with respect to CRT are yet to be explored. For instance, it is unknown how particle size may affect the therapeutic index of CRT. Exploration of this topic may provide invaluable insight on how NP-based CRT could be administered clinically in the future, as there is currently no set standard on an optimal particle size.
Short-period stellar activity cycles with Kepler photometry
Creators: name: Arkhypov, Oleksiy V.
name: Khodachenko, Maxim L.
name: Lammer, Helmut
name: Güdel, Manuel
name: Lüftinger, Theresa
name: Johnstone, Colin P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We study the short-periodic component of stellar activity with a cycle periods Pcyc up to 1000 days using the Kepler mission photometry of fast-rotating (rotational periods from 1 to 4 days) stars with spectra of M4V to F3V. Applying the originally developed two non-spectral methods, we measured the effective period of stellar cycles in 462 objects. The obtained results are in accordance with previous measurements by Vida et al. (2014), do not seem to result from a beating effect. The performed measurements of Pcyc cluster in a specific branch which covers the previously unstudied region in the Saar-Brandenburg (1999) diagram, and connects the branch of inactive stars with the area populated by super-active objects. It is shown that the formation of the discovered branch is due to the alpha-quenching effect, which saturates the magnetic dynamo and decreases the cycle periods with the increase of inverted Rossby number. This finding is important in the context of the discussion on catastrophic quenching and other heuristic approximations of the non-linear alpha-effect.
description: 37 pages, 17 figures
Pleopeltis intermedia M. Kessler & A. R. Sm., Candollea
Creators: name: Smith, Alan R.
name: Kessler, Michael
name: León, Blanca
name: Almeida, Thaís Elias
name: Jiménez-Pérez, Iván
name: Lehnert, Marcus
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Polypodiopsida
Polypodiales
Polypodiaceae
Pleopeltis
Pleopeltis intermedia

description: Pleopeltis intermedia M.Kessler & A.R.Sm., Candollea 60(1): 275(-277, 285), f. 2D-G. 2005.
 Range: —Known only from Bolivia (BE, CH, CO, LP, SC), but to be expected in southern Peru.
 Ecology: —Very common; epiphytic and rarely saxicolous in humid forests; at 400–2500 m.
 Notes: —Intermediate between P. astrolepis, from which it differs by its longer, terete petioles, less elongate sori, and broader sterile blades (0.8–2.8 cm vs. 0.6–2 cm wide), and P. macrocarpa, from which it differs by its dark, rounded, long-ciliate rhizome scales, sparser, rounded, smaller blade scales, darker costae, and somewhat smaller size (leaves 6–18 cm vs. 7–30 cm long).
description: Published as part of Smith, Alan R., Kessler, Michael, León, Blanca, Almeida, Thaís Elias, Jiménez-Pérez, Iván & Lehnert, Marcus, 2018, Prodromus of a fern flora for Bolivia. XL. Polypodiaceae, pp. 448-450 in Phytotaxa 354 (1) on pages 448-450, DOI: 10.11646/phytotaxa.354.1.1, http://zenodo.org/record/13706197
MS Gr. class. c. 6 1459
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 col. 34. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
The Effect of Healthcare Transition Services on State Level Recidivism
Creators: name: Harrell, Evan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2019

description: Every state currently offers some amount of healthcare transition services to individuals leaving prison, but there is little research on whether, and how, these services are effective at reducing recidivism. This paper focuses on the extent to which healthcare transition services are effective, and identifies which services are effective, controlling for state spending. Using data provided by the Pew Charitable Trusts, I examine how the number of services offered, as well as the amount spent on prison healthcare within a state affects the recidivism rate at the state level. The primary model is a multivariate ordinary least squares model with state-level recidivism as the dependent variable. Then, I use a separate multivariate model to examine ten transition services that are in less than 80% of states. Next, I estimate the effect of each individual service in a third model. Finally, I use a fixed-effects model to estimate how changes in both total and per-inmate healthcare spending affect recidivism. The results of these models suggest that providing more services lowers recidivism. However, not all transition services are equally effective. Community supervision and transition services that provide for people suffering from substance abuse, namely referrals or appointments, were shown to be among the most effective services. On the other end, mental health appointments were the least effective. Increased access to community supervision is the recommended policy, with individuals getting at least one meeting prior to or just following release. Further research is needed to determine why appointments for individuals suffering from mental illness are so ineffective as well as study how the selection bias of policing may be affecting the results.
Population I Cepheids and understanding star formation history of the Small Magellanic Cloud
Creators: name: Joshi, Yogesh C.
name: Mohanty, Auro
name: Joshi, Santosh
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: In this paper, we study the age and spatial distributions of Cepheids in the Small Magellanic Cloud (SMC) as a function of their ages using the data from the OGLE III photometric catalogue. A period-age (PA) relation derived for the Classical Cepheids in the Large Magellanic Cloud (LMC) has been used to find the ages of Cepheids. The age distribution of the SMC Classical Cepheids is found to have a peak at log(Age) = 8.40+/-0.10 which suggests that a major star formation event might have occurred in the SMC at about 250+/-50 Myrs ago. It is believed that this star forming burst had been triggered by close interactions of the SMC with the LMC and/or the Milky Way (MW). A comparison of the observed spatial distributions of the Cepheids and open star clusters has also been carried out to study the star formation scenario in the SMC.
description: 10 pages, 7 figures, accepted for publication in Research in Astronomy and Astrophysics
MS Gr. class. c. 6 1460
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 col. 35. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
The Scheduling of Controversial Roll-Call Votes in State Senates
Creators: name: Garner, Grace
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: In the US Congress it has been shown that factors such as the electoral cycle, seat stability, and party strength affect how legislators approach dealing with legislation, especially potentially controversial legislation. I believe that there remains much to be gained from analyzing state senates and deriving patterns in roll-call voting behavior. I examine the scheduling of roll-call votes regarding abortion legislation and compare the results across state senates in an attempt to derive patterns in behavior. The variables examined included electoral cycle type, Republican electoral vote share per seat, average percent Republican seat gain per election, party control, recent control changes, and the level of senate professionalism. I found that stronger Republican parties correlate with earlier roll-call votes and that more professional senates and senates with longer, non-staggered election cycles have clearer scheduling patterns than their less professional and shorter, staggered counterparts.
MS Gr. class. c. 6 1461
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 col. 37. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Problems of Rural Elderly Households in Powell County, Kentucky
Creators: name: Larson, Donald K.
name: Youmans, E. Grant
name: Larson, Donald K.
name: Youmans, E. Grant
Publisher: name: Unknown
Year: 1978
Subjects: subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Elderly households
subject: Household income and assets
subject: Housing
subject: Transportation
subject: Rural

description: A study conducted in 1975 shows that many elderly households in Powell County had incomes below the national poverty level, particularly households of men and women living alone. Social Security was the most frequently reported source of income, and few households had income-producing assets. Improving the low household money income situation is likely to involve insuring that transfer payments are raised. Home repair was an important need expressed by many elderly household heads. Because many elderly households have low money incomes and small amounts of liquid assets, some form of special financial assistance will be needed if home repairs are to be made. The elderly in the county indicated that transportation was less important than the need for home repairs. While many elderly depended on kin, friends, and neighbors for transportation into town, this existing arrangement might be more effective if a county information and referral system were available to coordinate rides with enlisted volunteers and elderly persons with a serious transportation problem.
MS Gr. class. c. 6 1462
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 col. 38. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Pseudo-code for Monte Carlo simulations to estimate uncertainties in biomass estimates
Creators: name: Peck, Christopher P.
name: Pinage, Ekena Rangel
name: Longo, Marcos
name: Keller, Michael
name: Duffy, Paul
name: Csillik, Ovidiu
Publisher: name: Zenodo
Year: 2023
Subjects: Monte Carlo
Biomass
Forest Degradation

description: Pseudo-code for Monte Carlo simulations to estimate uncertainties in biomass estimates for a given reference site. This approach was utilized in the manuscript "Effects of forest degradation classification on the uncertainty of aboveground carbon estimates in the Amazon", submitted and under review in the Carbon Balance and Management journal. Monte Carlo simulation was used to quantify uncertainty in grid-level aboveground carbon density estimates. We performed simulations that accounted for uncertainty from two different sources: (i) ACD estimation and (ii) forest degradation classification. The first simulation accounted for both sources of uncertainty (labeled ACD + Classification) and the second simulation accounted for only uncertainty in ACD estimates (labeled ACD only). For each Monte Carlo iteration, individual grid cells were classified using the predicted class probabilities from the multinomial classification model. For the first simulation, cells were classified based on random sampling from the predicted probabilities, and the second simulation classified cells by selecting the class with the highest predicted probability. ACD on a per-grid cell basis was then assigned by randomly sampling from the associated site and degradation class carbon density estimates. Site-level carbon density statistics were computed for a total of 10,000 iterations.
Exploring Self-Regulation: Delay of Gratification and Executive Function in 42-Month-Old Toddlers
Creators: name: Hoover, Kimberly
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2018

description: Self-regulation in early childhood has often been measured by children’s performance on delay-of-gratification tasks and been linked to a range of cognitive, social, and emotional outcomes. The construct of self-regulation is closely tied to executive function. Although self-regulation and executive function have important lifelong outcomes, there is limited research on how different measures of these constructs relate to each other. This study was designed to examine self-regulation by assessing the relation between laboratory-based delay of gratification and parent-reported executive function in 42-month-old toddlers. Although there were many significant correlations between the delay-of-gratification tasks and between the parent report measures, there were only a few significant correlations that crossed between the two measures. These findings add to our current understanding of the relations between laboratory-based assessments and parent reports. Implications and limitations of this study are considered.
Probability distribution function for reorientations in Maier-Saupe potential
Creators: name: Sitnitsky, A. E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Exact analytic solution for the probability distribution function of the non-inertial rotational diffusion equation, i.e., of the Smoluchowski one, in a symmetric Maier-Saupe uniaxial potential of mean torque is obtained via the confluent Heun's function. Both the ordinary Maier-Saupe potential and the double-well one with variable barrier width are considered. Thus, the present article substantially extends the scope of the potentials amenable to the treatment by reducing Smoluchowski equation to the confluent Heun's one. The solution is uniformly valid for any barrier height. We use it for the calculation of the mean first passage time. Also the higher eigenvalues for the relaxation decay modes in the case of ordinary Maier-Saupe potential are calculated. The results obtained are in full agreement with those of the approach developed by Coffey, Kalmykov, Déjardin and their coauthors in the whole range of barrier heights.
description: 20 pages, 5 figures. Revised version. arXiv admin note: text overlap with arXiv:1407.1635
MS Gr. class. c. 6 1463
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 col. 39. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
MS Gr. class. c. 6 1464
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 col. 40. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Evolution of electronic states in n-type copper oxide superconductor via electric double layer gating
Creators: name: Jin, Kui
name: Hu, Wei
name: Zhu, Beiyi
name: Kim, Dohun
name: Yuan, Jie
name: Xiang, Tao
name: Fuhrer, Michael S.
name: Takeuchi, Ichiro
name: Greene, Richard L.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Since the discovery of n-type copper oxide superconductors, the evolution of electron- and hole-bands and its relation to the superconductivity have been seen as a key factor in unveiling the mechanism of high-Tc superconductors. So far, the occurrence of electrons and holes in n-type copper oxides has been achieved by chemical doping, pressure, and/or deoxygenation. However, the observed electronic properties are blurred by the concomitant effects such as change of lattice structure, disorder, etc. Here, we report on successful tuning the electronic band structure of n-type Pr2-xCexCuO4 (x = 0.15) ultrathin films, via the electric double layer transistor technique. Abnormal transport properties, such as multiple sign reversals of Hall resistivity in normal and mixed states, have been revealed within an electrostatic field in range of -2 V to +2 V, as well as varying the temperature and magnetic field. In the mixed state, the intrinsic anomalous Hall conductivity invokes the contribution of both electron and hole-bands as well as the energy dependent density of states near the Fermi level. The two-band model can also describe the normal state transport properties well, whereas the carrier concentrations of electrons and holes are always enhanced or depressed simultaneously in electric fields. This is in contrast to the scenario of Fermi surface reconstruction by antiferromagnetism, where an anti-correlation between electrons and holes is commonly expected. Our findings paint the picture where Coulomb repulsion plays an important role in the evolution of the electronic states in n-type cuprate superconductors.
description: 4 figures, SI not included. Comments are welcome
MPEC 2023-F150 : 2023 FL4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 FL4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
A General Change: Ulysses S. Grant’s Evolving Relationship with the Jewish Community, 1862-1885
Creators: name: Kronovet, Adrienne M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2017

description: On December 17, 1862, antisemitic legislation entered American history. Major General
Ulysses S. Grant, then in charge of three Confederate states, expelled all Jews from the area under his command. This legislation, General Order No. 11, targeted “Jews, as a class” and granted them a 24-hour window to abandon their homes and evacuate the entire area under Grant’s command. The order did not tell them where to go. It simply instructed them to get out. Jewish American citizens of all ages, genders, and professions were not welcome in Grant’s territory. When news of this order reached President Lincoln, he immediately ordered its repeal, and on January 4, 1863, General Order No. 11 was officially rescinded. As the Civil War continued, General Grant’s antisemitic order was quickly forgotten. In 1868, Ulysses S. Grant became the presidential nominee of the Republican Party. His candidacy quickly returned General Order No.11 to the attention of the country. In the Jewish community, anxieties rapidly grew over the potential of a Grant administration. To both manipulate these anxieties and attack Grant, the Democratic Party continually publicized the order. In the weeks leading up to the election, papers across the country reported on General Order No. 11 and theorized that it posed a legitimate threat to Grant’s victory. Ultimately, Grant
prevailed and became the 18th president. Within the opening months of his presidency, Grant took unprecedented actions towards the Jewish American community. He appointed Jews to federal positions, used the diplomatic strength of the United States to protect the international Jewish community, and donated money to establish a synagogue in D.C. During his presidency,Ulysses S. Grant transformed from a persecutor to an ally.
This evolving relationship provides insight into Grant’s character and the development of the Jewish American community in the mid-nineteenth century. In the existing literature on Grant, little attention is paid to General Order No. 11 and Grant’s overall relations with the Jewish community in the United States. Jewish American history, however, focuses on the order but generally disregards the developments made during Grant’s presidency. During his life and in his memoirs, Grant actively tried to distance himself from the order. To understand the motivation behind Grant’s progress, one must understand Grant’s reliance on the public for approval. His actions as president were prompted by his need to respond to the public accusations that stemmed from General Order No. 11.
Asteroseismology of Pulsating Stars
Creators: name: Joshi, Santosh
name: Joshi, Yogesh C.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The success of helioseismology is due to its capability of measuring p-mode oscillations in the Sun. This allows us to extract informations on the internal structure and rotation of the Sun from the surface to the core. Similarly, asteroseismology is the study of the internal structure of the stars as derived from stellar oscillations. In this review we highlight the progress in the observational asteroseismology, including some basic theoretical aspects. In particular, we discuss our contributions to asteroseismology through the study of chemically peculiar stars under the "Nainital-Cape Survey" project being conducted at ARIES, Nainital since 1999. This survey aims to detect new rapidly-pulsating Ap (roAp) stars in the northern hemisphere. We also discuss the contribution of ARIES towards the asteroseismic study of the compact pulsating variables. We comment on the future prospects of our project in the light of the new optical 3.6-m telescope to be install at Devasthal (ARIES). Finally, we present a preliminary optical design of the high-speed imaging photometers for this telescope.
description: published in Journal of Astrophysics & Astronomy. arXiv admin note: text overlap with arXiv:1405.3145, arXiv:1212.5084, arXiv:1205.6407, arXiv:1212.2384, arXiv:1109.3455, arXiv:1104.5191, arXiv:1102.1884, arXiv:1310.0696, arXiv:1310.2266 by other authors
MS Gr. class. c. 6 1465
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1672 Subscriptio. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
Predicting Lake Depths from Topography to Map Global Lake Volume
Creators: name: Holtzman, Nataniel M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2016

description: The depth of a lake affects its role in climate and biogeochemical cycling. There is a lack of lake depth data due to the difficulty of measuring bathymetry, which impedes the accurate inclusion of lakes in climate models and the assessment of global water resources and carbon storage. However, lake depths can be estimated from land topography, for which remotely-sensed DEM data is available. We develop a simple statistical model to predict lake depth from two explanatory variables: the mean relief above the lake surface of an area around the lake, and whether the lake’s location was glaciated in the last ice age. The model is based on 328 lakes with known depths, located on all continents but Antarctica, and has an r2 of 0.57. We then apply this model to a database of over 200,000 lakes to produce global gridded maps of predicted total lake volume and average depth. The realistic depth estimates provided by our model can improve the accuracy of future studies of climate and water resources.
Materials
Creators: name: Medha
name: Pys, Paulina
name: Young, Brittany
name: Corzo, Gabriel
name: Legate, Nicole
name: Shu, Frank
Publisher: name: Open Science Framework
Year: 2022
Subjects: subject: CREP

description: This component contains all the materials related to the study such as questionnaires, approved consent document, recruitment procedure and survey.
Coherent Quantum Phase Slip in two-component bosonic Atomtronic Circuits
Creators: name: Gallemí, A.
name: Mateo, A. Muñoz
name: Mayol, R.
name: Guilleumas, M.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Coherent Quantum Phase Slip consists in the coherent transfer of vortices in superfluids. We investigate this phenomenon in two miscible coherently coupled components of a spinor Bose gas confined in a toroidal trap. After imprinting different vortex states on each component, we demonstrate that during the whole dynamics the system remains in a linear superposition of two current states in spite of the non-linearity and can be mapped onto a linear Josephson problem. We propose this system as a good candidate for the realization of a Mooij-Harmans qubit and remark its feasibility for implementation in current experiments with $^{87}\mbox{Rb}$, since we have used values for the physical parameters currently available in laboratories.
description: 16 pages, 10 figures
MS Gr. class. c. 6 1467
Creators: name: Oxyrhynchus Papyri
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 470316
subject: Latin and classical Greek languages

description: P.Herc. 1674 Subscriptio. Philodemus, De rhetorica 2
Drawing by G.B. Malesci
MPEC 2023-F151 : 2023 FM4
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 FM4

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Inequalities for operator space numerical radius of $2\times 2$ block matrices
Creators: name: Moslehian, Mohammad Sal
name: Sattari, Mostafa
Publisher: name: arXiv
Year: 2015
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 47A12, Secondary 46L15, 47A30, 47A63, 47L25

description: In this paper, we study the relationship between operator space norm and operator space numerical radius on the matrix space $\mathcal{M}_n(X)$, when $X$ is a numerical radius operator space. Moreover, we establish several inequalities for operator space numerical radius and the maximal numerical radius norm of $2\times 2$ operator matrices and their off-diagonal parts. One of our main results states that if $(X, (O_n))$ is an operator space, then \begin{align*} \frac12\max\big(W_{\max}(x_1+x_2)&, W_{\max}(x_1-x_2) \big)\\ &\le W_{\max}\Big(\begin{bmatrix} 0 & x_1 \\ x_2 & 0 \end{bmatrix}\Big)\\ &\hspace{1.5cm}\le \frac12\left(W_{\max}(x_1+x_2)+ W_{\max}(x_1-x_2) \right) \end{align*} for all $x_1, x_2\in \mathcal{M}_n(X)$.
description: to appear in J. Math. Phys. (JMP), 18 pages
Evaluation of eggplant wild relatives species under water deficit conditionsEvaluation of eggplant wild relatives species under water deficit conditions
Creators: name: Tseng, FJ
name: Lin YP, Otunga EO
Publisher: name: World Vegetable Center
Year: 2024
Subjects: subject: EGGPLANT
subject: GERMPLASM
subject: LANDRACES
subject: RESISTANCE
subject: DROUGHT RESISTANCE
subject: Eggplant (Solanum melongena L.)
subject: Tropical and subtropical vegetable
subject: Nutrients and bioactive compounds
subject: High-quality genome assembly
subject: Genebank accessions
subject: Environmental adaptation genes
subject: Climate change
subject: Crop yield reduction
subject: Genetic diversity
subject: Wild relatives
subject: Landraces
subject: High-throughput phenotyping
subject: Water stress tolerance
subject: S. anomalum
subject: S. incanum
subject: Drought tolerance
subject: Genotype VI042823
subject: Breeding programs
subject: Resilience to environmental stresses

description: Eggplant (Solanum melongena L.) is a vital vegetable in tropical and subtropical regions, contributing essential nutrients and bioactive compounds to global diets. Recent advancements, including assembling a high-quality genome, have enabled the screening of eggplant genebank accessions for genes associated with environmental adaptation. Given the anticipated reduction in crop yields due to climate change and the limited diversity in elite varieties, identifying resilient wild relatives or landraces is crucial. Using high-throughput phenotyping, this study evaluates the water stress tolerance of two eggplant wild relatives, S. anomalum and S. incanum. The findings highlight the potential of genotype VI042823 (S. incanum) for improving drought tolerance in cultivated eggplant varieties. These results underscore the importance of utilizing wild relatives in breeding programs to enhance resilience to environmental stresses
Quasar Host Environments: The view from Planck
Creators: name: Verdier, Loïc
name: Melin, Jean-Baptiste
name: Bartlett, James G.
name: Magneville, Christophe
name: Palanque-Delabrouille, Nathalie
name: Yèche, Christophe
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We measure the far-infrared emission of the general quasar (QSO) population using Planck observations of the Baryon Oscillation Spectroscopic Survey QSO sample. By applying multi-component matched multi-filters to the seven highest Planck frequencies, we extract the amplitudes of dust, synchrotron and thermal Sunyaev-Zeldovich (SZ) signals for nearly 300,000 QSOs over the redshift range $0.1
description: 14 pages, 11 figures, accepted by A&A