cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
HAT-P-44b, HAT-P-45b, and HAT-P-46b: Three Transiting Hot Jupiters in Possible Multi-Planet Systems
Creators: name: Hartman, J. D.
name: Bakos, G. Á.
name: Torres, G.
name: Kovács, G.
name: Johnson, J. A.
name: Howard, A. W.
name: Marcy, G. W.
name: Latham, D. W.
name: Bieryla, A.
name: Buchhave, L. A.
name: Bhatti, W.
name: Béky, B.
name: Csubry, Z.
name: Penev, K.
name: de Val-Borro, M.
name: Noyes, R. W.
name: Fischer, D. A.
name: Esquerdo, G. A.
name: Everett, M.
name: Szklenár, T.
name: Zhou, G.
name: Bayliss, D.
name: Shporer, A.
name: Fulton, B. J.
name: Sanchis-Ojeda, R.
name: Falco, E.
name: Lázár, J.
name: Papp, I.
name: Sári, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We report the discovery by the HATNet survey of three new transiting extrasolar planets orbiting moderately bright (V=13.2, 12.8 and 11.9) stars. The planets have orbital periods of 4.3012, 3.1290, and 4.4631 days, masses of 0.39, 0.89, and 0.49 Mjup, and radii of 1.28, 1.43, and 1.28 Rjup. The stellar hosts have masses of 0.94, 1.26, and 1.28 Msun. Each system shows significant systematic variations in its residual radial velocities indicating the possible presence of additional components. Based on its Bayesian evidence, the preferred model for HAT-P-44 consists of two planets, including the transiting component, with the outer planet having a period of 220 d and a minimum mass of 1.6 Mjup. Due to aliasing we cannot rule out an alternative solution for the outer planet having a period of 438 d and a minimum mass of 3.7 Mjup. For HAT-P-45 at present there is not enough data to justify the additional free parameters included in a multi-planet model, in this case a single-planet solution is preferred, but the required jitter of 22.5 +- 6.3 m/s is relatively high for a star of this type. For HAT-P-46 the preferred solution includes a second planet having a period of 78 d and a minimum mass of 2.0 Mjup, however the preference for this model over a single-planet model is not very strong. While substantial uncertainties remain as to the presence and/or properties of the outer planetary companions in these systems, the inner transiting planets are well characterized with measured properties that are fairly robust against changes in the assumed models for the outer planets. Continued RV monitoring is necessary to fully characterize these three planetary systems, the properties of which may have important implications for understanding the formation of hot Jupiters.
description: 21 pages, 10 figures, 14 tables, submitted to AJ
title: Глобальный инновационный индекс 2024 :
title: Резюме.
titleType: Subtitle
Creators: name: World Intellectual Property Organization.
name: Dutta, Soumitra.
name: Lanvin, Bruno.
name: Rivera León, Lorena.
name: Wunsch-Vincent, Sacha.
Publisher: name: World Intellectual Property Organization,
Year: 0
Subjects: Innovations
Technological innovations

description: В резюме Глобального инновационного индекса 2024 года приводятся основные выводы и результаты исследования, представленные в полном докладе, который в этом году посящен теме «Инновации в условиях неопределенности». ГИИ 2024 года рассказывает о мировых лидерах в области инновационной деятельности, опираясь на рейтинг инновационного развития 132 экономик и их сильные и слабые стороны. Кроме того, в докладе указана первая сотня мировых научно-технологических кластеров.
Impact of different water activities (aw) adjusted by solutes on high pressure high temperature inactivation of Bacillus amyloliquefaciens spores
Creators: name: Sevenich, Robert
name: Reineke, Kai
name: Hecht, Philipp
name: Fröhling, Antje
name: Rauh, Cornelia
name: Schlüter, Oliver
name: Knorr, Dietrich
Publisher: name: Lausanne : Frontiers Media
Year: 2015
Subjects: subject: High pressure high temperature
subject: reduced water activity
subject: baroprotective effect
subject: Bacillus amyloliquefaciens
subject: spore inactivation
subject: 630

description: Much research has been conducted to comprehend the mechanisms of high pressure (HP) inactivation of spores in aqueous systems but for food model systems these information are scarce. In these systems spores can interact with ingredients which then could possibly lead to retarded or reduced inactivation, which can cause a problem for the sterilization process. The protective mechanism of a reduced aw-value is still unclear. HP processing might prove valuable to overcome protective effects of solutes and achieve shorter process times for sterilization under HP. To gain insight into the underlying mechanisms five aw-values (0.9, 0.92, 0.94, 0.96, 1) were adjusted with two different solutes (NaCl, sucrose). Solutions were inoculated with spores of Bacillus amyloliquefaciens and treated at 105, 110, and 115°C at 600 MPa. Further a thermal inactivation was conducted at the same temperatures for a comparison with the HP data. Afterward, the influence of HP high temperature treatment on the inactivation, the dipicolinic acid (DPA)-release and membrane constitution was assessed by plate count, HPLC and flow cytometry (FCM). The results show that during HP treatments sucrose and salt both have a protective effect, in which the influence of sucrose on the retarded inactivation is higher. The threshold water activities (aw), which is 0.94, here salt and sucrose have a significant influence on the inactivation. The comparison of thermal (105–115°C) and HP and high temperature (600 MPa, 105–115°C) treated samples showed that the time needed to achieve a 4–5 log10 inactivation is reduced from 45 (aw = 1) to 75 (aw = 0.9) min at 105°C to 3 (aw = 1) to 15 (aw = 0.9) minutes at 600 MPa and 105°C. The release of DPA is the rate limiting step of the inactivation and therefore monitoring the release is of great interest. The DPA-release is slowed down in high concentrated solutions (e.g., sucrose, salt) in comparison to aw 1. Since there is a difference in the way the solutes protect the spore it could be seen as an inner spore membrane effect. Maybe as shown for vegetative microorganism the solutes can interact with membranes, e.g., the inner spore membrane. Flow cytometry (FCM) measurement data show a similar trend.
Occupation Probabilities and Fluctuations in the Asymmetric Simple Inclusion Process
Creators: name: Reuveni, Shlomi
name: Hirschberg, Ori
name: Eliazar, Iddo
name: Yechiali, Uri
Publisher: name: arXiv
Year: 2013
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The Asymmetric Simple Inclusion Process (ASIP), a lattice-gas model of unidirectional transport and aggregation, was recently proposed as an `inclusion' counterpart of the Asymmetric Simple Exclusion Process (ASEP). In this paper we present an exact closed-form expression for the probability that a given number of particles occupies a given set of consecutive lattice sites. Our results are expressed in terms of the entries of Catalan's trapezoids --- number arrays which generalize Catalan's numbers and Catalan's triangle. We further prove that the ASIP is asymptotically governed by: (i) an inverse square root law of occupation; (ii) a square root law of fluctuation; and (iii) a Rayleigh law for the distribution of inter-exit times. The universality of these results is discussed.
description: 24 pages, 6 figures
Polynomial Expansion Monte Carlo Study of Frustrated Itinerant Electron Systems: Application to a Spin-ice type Kondo Lattice Model on a Pyrochlore Lattice
Creators: name: Ishizuka, Hiroaki
name: Udagawa, Masafumi
name: Motome, Yukitoshi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present the benchmark of the polynomial expansion Monte Carlo method to a Kondo lattice model with classical localized spins on a geometrically frustrated lattice. The method enables to reduce the calculation amount by using the Chebyshev polynomial expansion of the density of states compared to a conventional Monte Carlo technique based on the exact diagonalization of the fermion Hamiltonian matrix. Further reduction is brought by a real-space truncation of the vector-matrix operations. We apply the method to the model with spin-ice type Ising spins on a three-dimensional pyrochlore lattice, and carefully examine the convergence in terms of the order of polynomials and the truncation distance. We find that, in a wide range of electron density at a relatively weak Kondo coupling compared to the noninteracting bandwidth, the results by the polynomial expansion method show good convergence to those by the conventional method within reasonable numbers of polynomials. This enables us to study the systems up to 4x8^3 = 2048 sites, while the previous study by the conventional method was limited to 4x4^3 = 256 sites. On the other hand, the real-space truncation is not helpful in reducing the calculation amount for the system sizes that we reached, as the sufficient convergence is obtained when most of the sites are involved within the truncation distance. The necessary truncation distance, however, appears not to show significant system size dependence, suggesting that the truncation method becomes efficient for larger system sizes.
description: 13 pages, 9 figures, accepted for publication in Computer Physics Communications
Modeling size segregation of granular materials: the roles of segregation, advection and diffusion
Creators: name: Fan, Yi
name: Schlick, Conor P.
name: Umbanhowar, Paul B.
name: Ottino, Julio M.
name: Lueptow, Richard M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Predicting segregation of granular materials composed of different-sized particles is a challenging problem. In this paper, we develop and implement a theoretical model that captures the interplay between advection, segregation, and diffusion in size bidisperse granular materials. The fluxes associated with these three driving factors depend on the underlying kinematics, whose characteristics play key roles in determining particle segregation configurations. Unlike previous models for segregation, our model uses parameters based on kinematic measures from discrete element method simulations instead of arbitrarily adjustable fitting parameters, and it achieves excellent quantitative agreement with both experimental and simulation results when applied to quasi-two-dimensional bounded heaps. The model yields two dimensionless control parameters, both of which are only functions of physically control parameters (feed rate, particle sizes, and system size) and kinematic parameters (diffusion coefficient, flowing layer depth, and percolation velocity). The Péclet number, $Pe$, captures the interplay of advection and diffusion, and the second dimensionless parameter, $Λ$, describes the interplay between segregation and advection. A parametric study of $Λ$ and $Pe$ demonstrates how the particle segregation configuration depends on the interplay of advection, segregation, and diffusion. The model can be readily adapted to other flow geometries.
description: Accepted for publication in the Journal of Fluid Mechanics
Relative entropy is an exact measure of non-Gaussianity
Creators: name: Marian, Paulina
name: Marian, Tudor A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We prove that the closest Gaussian state to an arbitrary $N$-mode field state through the relative entropy is built with the covariance matrix and the average displacement of the given state. Consequently, the relative entropy of an $N$-mode state to its associate Gaussian one is an exact distance-type measure of non-Gaussianity. In order to illustrate this finding, we discuss the general properties of the $N$-mode Fock-diagonal states and evaluate their exact entropic amount of non-Gaussianity.
description: 6 pages, no figures. Comments are welcome
The linearity problem for the unitriangular automorphism groups of free groups
Creators: name: Roman'kov, V.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20F28, 20E05

description: We prove that the unitriangular automorphism group of a free group of rank $n$ has a faithful representation by matrices over a field, or in other words, it is a linear group, if and only if $n \leq 3.$ Thus, we have completed a description of relatively free groups with linear the unitriangular automorphism groups. This description was initiated by Erofeev and the author in \cite{Erofeev}, where proper varieties of groups have been considered.
From solar-like to anti-solar differential rotation in cool stars
Creators: name: Gastine, T.
name: Yadav, R. K.
name: Morin, J.
name: Reiners, A.
name: Wicht, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Stellar differential rotation can be separated into two main regimes: solar-like when the equator rotates faster than the poles and anti-solar when the polar regions rotate faster than the equator. We investigate the transition between these two regimes with 3-D numerical simulations of rotating spherical shells. We conduct a systematic parameter study which also includes models from different research groups. We find that the direction of the differential rotation is governed by the contribution of the Coriolis force in the force balance, independently of the model setup (presence of a magnetic field, thickness of the convective layer, density stratification). Rapidly-rotating cases with a small Rossby number yield solar-like differential rotation, while weakly-rotating models sustain anti-solar differential rotation. Close to the transition, the two kinds of differential rotation are two possible bistable states. This study provides theoretical support for the existence of anti-solar differential rotation in cool stars with large Rossby numbers.
description: 5 pages, 6 figures, accepted for publication in MNRAS
Influence of electromagnetic radiation emitted by daily-use electronic devices on the Eyemate® system in-vitro : a feasibility study
Creators: name: Invernizzi, Azzurra
name: Haykal, Shereif
name: Lo Faro, Valeria
name: Pennisi, Vincenzo
name: Choritz, Lars
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2020
Subjects: subject: Intraocular pressure
subject: Electromagnetic radiation
subject: Glaucoma
subject: Eyemate® system
subject: 610.72

description: Background: Eyemate® is a system for the continual monitoring of intraocular pressure (IOP), composed of an intraocular sensor, and a hand-held reader device. As the eyemate®-IO sensor communicates with the hand-held reader telemetrically, some patients might fear that the electronic devices that they use on a daily basis might somehow interfere with this communication, leading to unreliable measurements of IOP. In this study, we investigated the effect of electromagnetic radiation produced by a number of everyday electronic devices on the measurements made by an eyemate®-IO sensor in-vitro, in an artificial and controlled environment. Methods: The eyemate®-IO sensor was suspended in a sterile 0.9% sodium chloride solution and placed in a water bath at 37 °C. The antenna, connected to a laptop for recording the data, was positioned at a fixed distance of 1 cm from the sensor. Approximately 2 hrs of “quasi-continuous” measurements were recorded for the baseline and for a cordless phone, a smart-phone and a laptop. Repeated measures ANOVA was used to compare any possible differences between the baseline and the tested devices. Results: For baseline measurements, the sensor maintained a steady-state, resulting in a flat profile at a mean pressure reading of 0.795 ± 0.45 hPa, with no apparent drift. No statistically significant difference (p = 0.332) was found between the fluctuations in the baseline and the tested devices (phone: 0.76 ± 0.41 hPa; cordless: 0.787 ± 0.26 hPa; laptop: 0.775 ± 0.39 hPa). Conclusion: In our in-vitro environment, we found no evidence of signal drifts or fluctuations associated with the tested devices, thus showing a lack of electromagnetic interference with data transmission in the tested frequency ranges.
Repurposed or Unpurposed? The Evolution of Chicago Public School Buildings Closed in 2013
Creators: name: Sullivan, Nora D.
Publisher: name: University of Chicago
Year: 2019
Subjects: subject: Chicago Public Schools
subject: repurposing of buildings

description: In 2013, Chicago Public Schools (CPS) closed 50 schools, leaving 44 school buildings to be sold and repurposed for new uses across the city. This study investigates the process of repurposing school buildings in Chicago and the extent to which these 44 buildings are still serving their respective communities. Eighteen interviews were conducted with academics, journalists, CPS personnel, community members affected by closed schools, and buyers of school buildings. The findings of this study show that chief among the factors that influence the success of repurposing these school buildings are: (1) differences in the vested interests of stakeholders in the closings and repurposing process, (2) inadequate communication regarding the process of closing and repurposing, and (3) obstacles to successful sales and repurposing. This study concludes that the influence of these factors has prevented the majority of the 44 school buildings closed in 2013 from being successfully repurposed.
The NASA Exoplanet Archive: Data and Tools for Exoplanet Research
Creators: name: Akeson, R. L.
name: Chen, X.
name: Ciardi, D.
name: Crane, M.
name: Good, J.
name: Harbut, M.
name: Jackson, E.
name: Kane, S. R.
name: Laity, A. C.
name: Leifer, S.
name: Lynn, M.
name: McElroy, D. L.
name: Papin, M.
name: Plavchan, P.
name: Ramirez, S. V.
name: Rey, R.
name: von Braun, K.
name: Wittman, M.
name: Abajian, M.
name: Ali, B.
name: Beichman, C.
name: Beekley, A.
name: Berriman, G. B.
name: Berukoff, S.
name: Bryden, G.
name: Chan, B.
name: Groom, S.
name: Lau, C.
name: Payne, A. N.
name: Regelson, M.
name: Saucedo, M.
name: Schmitz, M.
name: Stauffer, J.
name: Wyatt, P.
name: Zhang, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We describe the contents and functionality of the NASA Exoplanet Archive, a database and tool set funded by NASA to support astronomers in the exoplanet community. The current content of the database includes interactive tables containing properties of all published exoplanets, Kepler planet candidates, threshold-crossing events, data validation reports and target stellar parameters, light curves from the Kepler and CoRoT missions and from several ground-based surveys, and spectra and radial velocity measurements from the literature. Tools provided to work with these data include a transit ephemeris predictor, both for single planets and for observing locations, light curve viewing and normalization utilities, and a periodogram and phased light curve service. The archive can be accessed at http://exoplanetarchive.ipac.caltech.edu.
description: Accepted for publication in the Publications of the Astronomical Society of the Pacific, 4 figures
Microtubules of COS7 cells stained with Alexa 532
Creators: name: Sauer, Markus
Publisher: name: Zenodo
Year: 2021
Subjects: shareloc.xyz
shareloc.xyz:dataset
microtubules
cos7
alexa-532
beta-tubulin
indirect-immuno-labeling
em-ccd
smlm

description: Open in Shareloc.XYZ

description: Microtubules (beta-tubulin) stained with AlexaFluor532 by indirect immunolabeling in COS7 cells (Uploaded via https://shareloc.xyz)
Microtubules of COS7 cells stained with Alexa 532
Creators: name: Lab, Markus Sauer
Publisher: name: Zenodo
Year: 2021
Subjects: shareloc.xyz
shareloc.xyz:dataset
microtubules
cos7
alexa-532
beta-tubulin
indirect-immuno-labeling
em-ccd
smlm

description: Open in Shareloc.XYZ
description: Microtubules (beta-tubulin) stained with AlexaFluor532 by indirect immunolabeling in COS7 cells (Uploaded via https://shareloc.xyz)
Respiratory aerosol emission from oxygen face masks: Filtering and non-filtering masks measured with a manikin model show potential for reduced emissions
Creators: name: Britten, Alan
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biochemistry
subject: Space Science
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Science Policy
subject: Infectious Diseases
subject: FOS: Health sciences

description: Hospital patients with infectious respiratory diseases frequently require oxygen which may be delivered by a face mask, and the quantitative effect of such masks on the emission of infectious respiratory aerosol is relevant to hospital acquired respiratory infections. This article reports the evaluation of the efficiency of aerosol particle volume reduction by oxygen face masks with and without exhalation filtering capability, for a medium concentration, high concentration non-rebreather and a venturi mask. The masks include two prototype filtering oxygen masks, and also type IIR surgical and FFP2 masks for reference. The evaluation was with a breathing and coughing manikin, measuring the relative volume of aerosol particles transmitted to the environment with and without a mask in place. Mask efficiency fraction indices, MEF, and relative performance factors, RPF, were calculated by a model which included the particle size spectrum arising from human breathing, speaking and coughing to produce indices for each of these activities. In this manikin model non-filtering medium and high concentration oxygen face masks reduced aerosol emission, with fractional efficiencies between 0.12 on breath and 0.65 on cough. Compared to non-filtering masks, currently available filtering oxygen masks reduced aerosol particle volume emission by factors up to 1.2 on breath and 2.4 on cough, and with prototype filtering masks reduction was up to a factor of 6.1 for breathing and 5.1 for cough. Validation in humans and modeling of the clinical environment is required to estimate the effect of such reductions in aerosol emission on healthcare acquired infections.
Optical detection of di- and triphosphate anions with mixed monolayer-protected gold nanoparticles containing zinc(II)–dipicolylamine complexes
Creators: name: Reinke, Lena
name: Bartl, Julia
name: Koch, Marcus
name: Kubik, Stefan
Publisher: name: Frankfurt, Main : Beilstein-Institut zur Förderung der Chemischen Wissenschaften
Year: 2020
Subjects: subject: chemosensor
subject: diphosphate
subject: gold nanoparticles
subject: optical sensing
subject: triphosphate
subject: 540

description: Gold nanoparticles covered with a mixture of ligands of which one type contains solubilizing triethylene glycol residues and the other peripheral zinc(II)–dipicolylamine (DPA) complexes allowed the optical detection of hydrogenphosphate, diphosphate, and triphosphate anions in water/methanol 1:2 (v/v). These anions caused the bright red solutions of the nanoparticles to change their color because of nanoparticle aggregation followed by precipitation, whereas halides or oxoanions such as sulfate, nitrate, or carbonate produced no effect. The sensitivity of phosphate sensing depended on the nature of the anion, with diphosphate and triphosphate inducing visual changes at significantly lower concentrations than hydrogenphosphate. In addition, the sensing sensitivity was also affected by the ratio of the ligands on the nanoparticle surface, decreasing as the number of immobilized zinc(II)–dipicolylamine groups increased. A nanoparticle containing a 9:1 ratio of the solubilizing and the anion-binding ligand showed a color change at diphosphate and triphosphate concentrations as low as 10 μmol/L, for example, and precipitated at slightly higher concentrations. Hydrogenphosphate induced a nanoparticle precipitation only at a concentration of ca. 400 μmol/L, at which the precipitates formed in the presence of diphosphates and triphosphates redissolved. A nanoparticle containing fewer binding sites was more sensitive, while increasing the relative number of zinc(II)–dipicolylamine complexes beyond 25% had a negative impact on the limit of detection and the optical response. Transmission electron microscopy provided evidence that the changes of the nanoparticle properties observed in the presence of the phosphates were due to a nanoparticle crosslinking, consistent with the preferred binding mode of zinc(II)–dipicolylamine complexes with phosphate anions which involves binding of the anion between two metal centers. This work thus provided information on how the behavior of mixed monolayer-protected gold nanoparticles is affected by multivalent interactions, at the same time introducing a method to assess whether certain biologically relevant anions are present in an aqueous solution within a specific concentration range.
Mapping a star with transits: orbit precession effects in the Kepler-13 system
Creators: name: Szabó, Gy. M.
name: Simon, A. E.
name: Kiss, L. L.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Kepler-13b (KOI-13.01) is a most intriguing exoplanet system due to the rapid precession rate, exhibiting several exotic phenomena. We analyzed $Kepler$ Short Cadence data up to Quarter 14, with a total time-span of 928 days, to reveal changes in transit duration, depth, asymmetry, and identify the possible signals of stellar rotation and low-level activity. We investigated long-term variations of transit light curves, testing for duration, peak depth and asymmetry. We also performed cluster analysis on $Kepler$ quarters. We computed the autocorrelation function of the out-of-transit light variations. Transit duration, peak depth, and asymmetry evolve slowly, due to the slowly drifting transit path through the stellar disk. The detected transit shapes will map the stellar surface on the time scale of decades. We found a very significant clustering pattern with 3-orbit period. Its source is very probably the rotating stellar surface, in the 5:3 spin-orbit resonance reported in a previous study. The autocorrelation function of the out-of-transit light variations, filtered to 25.4 hours and harmonics, shows slow variations and a peak around 300--360 day period, which could be related to the activity cycle of the host star.
description: 7 pages, 7 figures, accepted in MNRAS
MPEC 2023-V103 : 2023 VB3
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 VB3

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.
Airborne bacteria in institutional and commercial buildings in Korea: Characterization with 16S rRNA gene sequencing and association with environmental conditions
Creators: name: Kim, Yea Joon
name: Lee, Bong Gu
name: Shim, Joo Eun
name: Lee, Hyesoo
name: Park, Ju-Hyeong
name: Yeo, Min-Kyeong
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified

description: Information on microorganisms in indoor air of various institutional and commercial buildings has significant value in a public health management perspective. However, there is a lack of prior research comparing indoor airborne microbiota across different categories of those buildings. We characterized indoor airborne bacteria in 10 buildings (two for each of five categories: train station, parking garage, mart, public library, and daycare center) during summer and winter. The 16S rRNA gene in the bacterial gDNA extracted from samples was quantified using quantitative real-time polymerase chain reaction and sequenced with the Illumina MiSeq™ platform for characterizing community composition. We collected information on temperature, relative humidity, CO2 concentration, and particulate matter (PM) concentrations by particle size (<1 µm, 1–2.5 µm, 2.5–10 µm) indoors. We performed a multivariate regression analysis to identify factors influencing bacterial quantity and Permutational Multivariate Analysis of Variance (PERMANOVA) to determine factors affecting cluster dissimilarity. We found that bacterial concentration was significantly (p-values < 0.05) associated with season and CO2 concentration. The PERMANOVA analyses showed the significant (p-values < 0.05) associations of bacterial cluster dissimilarity with season, building category, and CO2. Our study indicated that the season, and CO2 concentrations may be important factors associated with the indoor airborne bacterial concentration and composition. Building category and usage appeared to significantly influence the bacterial community composition but not the concentration. Our study may provide basic data on bacterial community composition and their concentration that are needed for properly managing microbial exposures in occupants or customers of the studied institutional and commercial buildings. Copyright © 2024 American Association for Aerosol Research
Magneto-thermoelectric figure of merit of Co/Cu multilayers
Creators: name: Hu, X. K.
name: Krzysteczko, P.
name: Liebing, N.
name: Serrano-Guisan, S.
name: Rott, K.
name: Reiss, G.
name: Kimling, J.
name: Böhnert, T.
name: Nielsch, K.
name: Schumacher, H. W.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The switching of the magnetization configurations of giant magnetoresistance multilayer stacks not only changes the electric and thermal conductivities, but also the thermopower. We study the magnetotransport and the magneto-thermoelectric properties of Co/Cu multilayer devices in a lateral thermal gradient. We derive values of the Seebeck coefficient, the thermoelectric figure of merit, and the thermoelectric power factor. The Seebeck coefficient reaches values up to -18 microvolt/K at room temperature and shows a magnetic field dependence up to 28.6 % upon spin reversal. In combination with thermal conductivity data of the same Co/Cu stack, we find a spin dependence of the thermoelectric figure of merit of up to 65 %. Furthermore, a spin dependence of the power factor of up to 110 % is derived.
description: 15 pages, 3 figures
Ineffective integration of multiple antipredator defences in a rotifer: a low-cost insurance?
Creators: name: He, Yuhan
name: Zhu, Konghao
name: Zhao, Kangshun
name: He, Liang
name: Candolin, Ulrika
name: Xu, Jun
name: Zhang, Huan
Publisher: name: Zenodo
Year: 2022
Subjects: Behavioral defenses
Morphological defenses
phenotypic plasticity
predator-prey interactions
Predatory cues

description: To maximize survival, prey often integrates multiple anti-predator defenses. How the defenses interact to reduce predation risk is, however, poorly known. We used the rotifer Brachionus calyciflorus to investigate how morphological (spines) and behavioral (floating) defenses are integrated against a common predatory rotifer, Asplanchna brightwellii, and if their combined use improves survival. To this end, we assessed the cost of the behavioral defense and the efficiency of both defenses, individually and combined, as well as their mutual dependency. The results show that the behavioral defense is costly in reducing foraging activity, and that the two defenses are used simultaneously, with the presence of the morphological defense enhancing the use of the behavioral defense, as does the pre-exposure to predator cues. However, while the morphological defense reduces predation risk, the behavioral defense does not, thus, adding the costly behavioral defense to the morphological defense does not improve survival. It is likely that the cost of the behavioral defense is low given its reversibility – compared to the cost of misidentifying the predator species – and that this has promoted the adoption of both defenses, as general low-cost insurance rather than as a tailored strategy toward specific predators. Thus, the optimal strategy in the rotifer appears to be to express both morphological and behavioral defenses when confronted with the cues of a potential predator.
description: the data is collected from four lab experiments. For details of the dataset please read our manscript "Ineffective integration of multiple antipredator defenses in a rotifer: a low-cost insurance?"Funding provided by: National Natural Science Foundation of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001809
Award Number: 31800389Funding provided by: National Natural Science Foundation of China
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100001809
Award Number: 32171515Funding provided by: China Scholarship Council
Crossref Funder Registry ID: http://dx.doi.org/10.13039/501100004543
Award Number:
description: the data is collected from four lab experiments. For details of the dataset please read our manscript "Ineffective integration of multiple antipredator defenses in a rotifer: a low-cost insurance?"
Characterization of highly anisotropic three-dimensionally nanostructured surfaces
Creators: name: Schmidt, Daniel
Publisher: name: arXiv
Year: 2013
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Generalized ellipsometry, a non-destructive optical characterization technique, is employed to determine geometrical structure parameters and anisotropic dielectric properties of highly spatially coherent three-dimensionally nanostructured thin films grown by glancing angle deposition. The (piecewise) homogeneous biaxial layer model approach is discussed, which can be universally applied to model the optical response of sculptured thin films with different geometries and from diverse materials, and structural parameters as well as effective optical properties of the nanostructured thin films are obtained. Alternative model approaches for slanted columnar thin films, anisotropic effective medium approximations based on the Bruggeman formalism, are presented, which deliver results comparable to the homogeneous biaxial layer approach and in addition provide film constituent volume fraction parameters as well as depolarization or shape factors. Advantages of these ellipsometry models are discussed on the example of metal slanted columnar thin films, which have been conformally coated with a thin passivating oxide layer by atomic layer deposition. Furthermore, the application of an effective medium approximation approach to in-situ growth monitoring of this anisotropic thin film functionalization process is presented. It was found that structural parameters determined with the presented optical model equivalents for slanted columnar thin films agree very well with scanning electron microscope image estimates.
description: 9 pages, 4 figures; invited conference contribution (6th International Conference on Spectroscopic Ellipsometry, Japan, 2013)
The Superconducting Quantum Interference Proximity Transistor (SQUIPT)
Creators: name: Giazotto, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: In this article we review the basic theoretical properties of a hybrid superconducting interferometer which exploits the phase dependence of the density of states of a metallic nanowire placed in good electric contact with a superconductor to achieve high sensitivity to magnetic flux. The operation of a prototype structure based on this principle, the superconducting quantum interference proximity transistor (SQUIPT), has been recently reported. Limited power dissipation joined with the opportunity to access single-spin detection make this interferometer attractive for the investigation of the switching dynamics of individual magnetic nanoparticles. The noise behavior of the device is presented as well, where the feasibility of this structure as a single-spin detector is also briefly addressed. In the final part we present the response of a real SQUIPT device.
description: 4 pages, 3 color figures, to appear in the McGraw-Hill Yearbook of Science & Technology
Genomics Education Alliance: A Collection of Posters for the 2020 BIOME Institute.
Creators: name: Buonaccorsi, Vince
name: Cervantes, Marcella
name: Chalker, Douglas
name: Rosenwald, Anne
name: Wiley, Emily
name: Williams, Jason
Publisher: name: QUBES Educational Resources
Year: 2020

description: This is a collection of posters from members of the Genomics Education Alliance (GEA) that will be presented at the 2020 BIOME Institute.
Toward a synthetic hydrogen sensor in cyanobacteria: Functional production of an oxygen-tolerant regulatory hydrogenase in Synechocystis sp. PCC 6803
Creators: name: Opel, Franz
name: Itzenhäuser, Marvin Amadeus
name: Wehner, Isabel
name: Lupacchini, Sara
name: Lauterbach, Lars
name: Lenz, Oliver
name: Klähn, Stephan
Publisher: name: Technische Universität Berlin
Year: 2023
Subjects: subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::570 Biowissenschaften; Biologie
subject: sensing and signaling
subject: biotechnological hydrogen
subject: regulatory hydrogenase
subject: biosensor
subject: synthetic biology
subject: cyanobacteria

description: Cyanobacteria have raised great interest in biotechnology, e.g., for the sustainable production of molecular hydrogen (H2) using electrons from water oxidation. However, this is hampered by various constraints. For example, H2-producing enzymes compete with primary metabolism for electrons and are usually inhibited by molecular oxygen (O2). In addition, there are a number of other constraints, some of which are unknown, requiring unbiased screening and systematic engineering approaches to improve the H2 yield. Here, we introduced the regulatory [NiFe]-hydrogenase (RH) of Cupriavidus necator (formerly Ralstonia eutropha) H16 into the cyanobacterial model strain Synechocystis sp. PCC 6803. In its natural host, the RH serves as a molecular H2 sensor initiating a signal cascade to express hydrogenase-related genes when no additional energy source other than H2 is available. Unlike most hydrogenases, the C. necator enzymes are O2-tolerant, allowing their efficient utilization in an oxygenic phototroph. Similar to C. necator, the RH produced in Synechocystis showed distinct H2 oxidation activity, confirming that it can be properly matured and assembled under photoautotrophic, i.e., oxygen-evolving conditions. Although the functional H2-sensing cascade has not yet been established in Synechocystis yet, we utilized the associated two-component system consisting of a histidine kinase and a response regulator to drive and modulate the expression of a superfolder gfp gene in Escherichia coli. This demonstrates that all components of the H2-dependent signal cascade can be functionally implemented in heterologous hosts. Thus, this work provides the basis for the development of an intrinsic H2 biosensor within a cyanobacterial cell that could be used to probe the effects of random mutagenesis and systematically identify promising genetic configurations to enable continuous and high-yield production of H2via oxygenic photosynthesis.
Several New Methods for Polynomial Irreducible Judgement
Creators: name: Zhou, Xiaochuan
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 490401
subject: Algebra and number theory

description: It is well known that the irreducible discrimination of polynomials, like the discrimination of prime numbers, is the most fundamental and important problem in mathematics, for more than 100 years there has been little significant progress in the irreducible discrimination of polynomials,this article innovatively defines two basic operations, which are more basic operations compared to +, -, ×, ÷. By applying these new operations and their properties, we can obtain some sufficient conditions for the judgment of irreducible polynomials, which provides a new and more effective method.
Deutschland. Verhandlungen der Reichsversammlung in Frankfurt. Verhandlungen über Kirchen und Staat in der 63sten Sitzung. Schluß. Der Hauptrepräsentant der zweiten, der cynischnihilisten Partei war Hr. Prof. Vogt ...; [1848]
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Fragment (Zeitungsausschnitt)
Auto Air Conditioning Service Near Me
Creators: name: Anol
Publisher: name: Zenodo
Year: 2021
Subjects: Auto Air Conditioning Service Near Me

description: It’s such a relief to turn on your AC and feel that cool air kick in when we get into our car rather than getting into a sweltering car. Or sometimes our car’s air conditioner activates but doesn’t cool the cabin the way it used to. To avoid car ac breakdown, check the ac at the first sign of trouble. The risk of premature compressor failure can be reduced with regular car air conditioning maintenance. If you’re already having AC problems, request an air conditioner check appointment today.

Here are some signs that the compressor is the problem: unusual compressor noise, visible damage, debris, or dirt on the compressor etc. Our certified technicians can diagnose and repair your auto A/C quickly and professionally. We inspect and replace cabin intake air filters, clean air intake vents, hose assembly, clean the air conditioning evaporator etc. Stay cool all summer long with auto air conditioning service near me with our professional team.
Retrieving Cirrus Microphysical Properties from Stellar Aureoles
Creators: name: DeVore, John G.
name: Kristl, Joseph A.
name: Rappaport, Saul
Publisher: name: arXiv
Year: 2013
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The aureoles around stars caused by thin cirrus limit nighttime measurement opportunities for ground-based astronomy but can provide information on high-altitude ice crystals for climate research. In this paper we attempt to demonstrate quantitatively how this works. Aureole profiles can be followed out to ~0.2 degrees from stars and ~0.5 degrees from Jupiter. Interpretation of diffracted starlight is similar to that for sunlight, but emphasizes larger particles. Stellar diffraction profiles are very distinctive, typically being approximately flat out to a critical angle followed by gradually steepening power-law falloff with slope less steep than -3. Using the relationship between the phase function for diffraction and the average Fourier transform of the projected area of complex ice crystals we show that defining particle size in terms of average projected area normal to the propagation direction of the starlight leads to a simple, analytic approximation representing large-particle diffraction that is nearly independent of crystal habit. A similar analytic approximation for the diffraction aureole allows it to be separated from the point spread function and the sky background. Multiple scattering is deconvolved using the Hankel transform leading to the diffraction phase function. Application of constrained numerical inversion to the phase function then yields a solution for the particle size distribution in the range between ~50 microns and ~400 microns. Stellar aureole measurements can provide one of the very few, as well as least expensive, methods for retrieving cirrus microphysical properties from ground-based observations.
description: 18 pages, 21 figures, Journal of Geophysical Research, in press
Imaging the proton concentration and mapping the spatial distribution of the electric field of catalytic micropumps
Creators: name: Farniya, A. Afshar
name: Esplandiu, M. J.
name: Reguera, D.
name: Bachtold, A.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Catalytic engines can use hydrogen peroxide as a chemical fuel in order to drive motion at the microscale. The chemo-mechanical actuation is a complex mechanism based on the interrelation between catalytic reactions and electro-hydrodynamics phenomena. We studied catalytic micropumps using fluorescence confocal microscopy to image the concentration of protons in the liquid. In addition, we measured the motion of particles with different charges in order to map the spatial distributions of the electric field, the electrostatic potential and the fluid flow. The combination of these two techniques allows us to contrast the gradient of the concentration of protons against the spatial variation in the electric field. We present numerical simulations that reproduce the experimental results. Our work sheds light on the interrelation between the different processes at work in the chemo-mechanical actuation of catalytic pumps. Our experimental approach could be used to study other electrochemical systems with heterogeneous electrodes.
Constructions of free commutative integro-differential algebras
Creators: name: Gao, Xing
name: Guo, Li
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: Commutative Algebra (math.AC)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 16S15, 13P10, 16W99, 17A50, 12H05, 13Nxx, 47G20

description: In this survey, we outline two recent constructions of free commutative integro-differential algebras. They are based on the construction of free commutative Rota-Baxter algebras by mixable shuffles. The first is by evaluations. The second is by the method of Gröbner-Shirshov bases.
description: arXiv admin note: substantial text overlap with arXiv:1302.0041