cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Seasonal and diurnal patterns of littoral microhabitat use by fish in gravel pit lakes, with special reference to supplemented deadwood brush piles
Creators: name: Maday, Andreas
name: Matern, Sven
name: Monk, Christopher T.
name: Klefoth, Thomas
name: Wolter, Christian
name: Arlinghaus, Robert
Publisher: name: Humboldt-Universität zu Berlin
Year: 2023
Subjects: subject: Fish distribution
subject: Deadwood
subject: Habitat enhancement
subject: Fisheries management
subject: Point abundance electrofishing
subject: Quarry lake
subject: 570 Biologie

description: The habitat quality of the littoral zone is of key importance for almost all lentic fish species. In anthropogenically created gravel pit lakes, the littoral zone is often structurally homogenized with limited fish habitats. We supplemented deadwood brush piles in the littoral zone of eight gravel pit lakes and investigated the diurnal and seasonal use of this and other typical microhabitats by six dominant fish species. Shoreline habitats were sampled using point abundance electrofishing during day and night in all four seasons, and patterns of fish abundance were compared amongst unstructured littoral habitats, emerged macrophytes and brush piles. We caught a total of 14,458 specimens from 15 species in the gravel pit lakes. Complex shoreline structures were used by all fish species that we examined, especially during daytime, whilst the use of unstructured habitats was highest during night. The newly added brush piles constituted suitable microhabitats for selected fish species, perch ( Perca fluviatilis ), roach ( Rutilus rutilus ) and pike ( Esox lucius ), particularly during winter. Supplemented deadwood provides suitable fish habitat in gravel pit lakes and may to some degree compensate for the loss of submerged macrophytes in winter by offering refuge and foraging habitat for selected fish species.
Additional file 4 of Molecular characterisation of Mycobacterium avium subsp. paratuberculosis in Australia
Creators: name: Hodgeman, Rachel
name: Mann, Rachel
name: Savin, Keith
name: Djitro, Noel
name: Rochfort, Simone
name: Rodoni, Brendan
Publisher: name: figshare
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 4: Table S3. Sequencing depth and coverage, number of SNP’s before and after filtering when aligned to Map K10 and Telford strain, GC content, number of contigs and number of raw sequence reads generated from the next generation sequencing of isolates that were sequenced and used for phylogenetic analysis in this study against the K10 reference strain
A Spectroscopic Study of the Ancient Milky Way: F- and G-Type Stars in the Third Data Release of the Sloan Digital Sky Survey
Creators: name: Prieto, C. Allende
name: Beers, T. C.
name: Wilhelm, R.
name: Newberg, H. J.
name: Rockosi, C. M.
name: Yanny, B.
name: Lee, Y. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: (Abridged) We perform an analysis of spectra and photometry for 22,770 stars included in the third data release (DR3) of the SDSS. We measure radial velocities and, based on a model-atmosphere analysis, derive estimates ofthe atmospheric parameters (effective temperature, surface gravity, and [Fe/H]) for each star. Stellar evolution models are then used to estimate distances. The SDSS sample covers a range in stellar brightness of 14 < V < 22, and comprises large numbers of F- and G-type stars from the thick-disk and halo populations (up to 100 kpc from the galactic plane), therefore including some of the oldest stars in the Milky Way. In agreement with previous results from the literature, we find that halo stars exhibit a broad range of iron abundances, with a peak at [Fe/H] ~ -1.4. This population exhibits essentially no galactic rotation. Thick-disk G-dwarf stars at distances from the galactic plane in the range 1
description: 18 pages, 16 figures; accepted for publication in the ApJ; also available from http://hebe.as.utexas.edu/
Die Struktur des primären Donators P700 in Photosystem I: Untersuchungen mit Methoden der stationären und gepulsten Elektronspinresonanz
Creators: name: Käß, Hanno
Publisher: name: Zenodo
Year: 1995
Subjects: Photosystem 1
primary donor
P700
Chlorophyll
Bacteriochlorophyll
ESR
EPR
ENDOR
ESEEM
magnetic resonance
spin density
electron spin resonance
electron spin echo envelope modulation
HYSCORE
electron nuclear double resonance
TRIPLE resonance

description: Ziel dieser Arbeit war die Ermittlung der geometrischen Struktur des primären Donators P700 im pflanzlichen Photosystem I (PS 1) sowie seine Charakterisierung im oxidierten Zustand P700•+. PS 1 kann zwar kristallisiert werden, die in der Röntgenstrukturanalyse erreichte Auflösung von 6 A (in absehbarer Zukunft 4.5 A) reicht jedoch nicht aus, um die genaue Geometrie der Kofaktoren im Protein zu errmitteln.
 Die Verwendung von ESR-Methoden ist für die Untersuchung von P700•+ besonders vorteilhaft, da sie selektiv dieses Kationradikal nachweisen können. Verwendet wurden sowohl stationäre (cw-) Methoden, speziell cw-ESR, cw-ENDOR und general TRIPLE-Resonanz als auch gepulste Verfahren mit Detektion von ESEEM-Effekten (Elektron Spin Echo Envelope Modulation). Sie ergänzen sich bei der Bestimmung
 von Hyperfeinkopplungskonstanten. Die Interpretation der Resultate für P700•+ beruht wesentlich auf dem Vergleich mit einem Modellsystem, dem monomeren Kationradikal von Chlorophyll a (Chla). MO-theoretisch wurde vorhergesagt, daß Chla•+ eine besondere elektronische Struktur besitzen sollte, die einen solchen direkten Vergleich mit P700•+ problematisch erscheinen läßt. Die in dieser Arbeit an substituierten Bakteriochlorophyll a- (BChla) und
 Chla-Kationradikalen durchgeführten Experimente zeigen, daß diese Vorhersagen für Chla•+ nicht zutreffen. Aus der Winkelabhängigkeit der in 1H-ENDOR-Experimenten an P700•+ in PS 1 - Kristallen bestimmten Hyperfeinkopplungen gelang es, die Orientierung eines Chla Moleküls in P700•+ zu ermitteln. Dieses Mlolekül liegt parallel zu der Achse annähernder C2-Symmetrie, die den PS 1 - Komplex durchläuft. Die Methylbindung an Pos. 12 des Chla-Moleküls schließt einen Winkel von 33° mit der C2-Achse ein. Diese Anordnung ist der Geometrie des primären Donators in bakteriellen photosynthetischen Reaktionszentren sehr ähnlich.
 Die Resultate zeigen außerdem, daß P700•+ mit großer Sicherheit aus einem Chla-Dimer besteht. Der größte Anteil des ungepaarten Elektronenspins, 85 (±2) % befindet sich auf einer Hälfte dieses Dimers. Experimente an P700•+ in PS 1verschiedener Spezies ergaben dabei keine signifikanten Unterschiede. Die ESEEM-Experimente an 15N-P700•+ bestätigten das Vorliegen dieser starken Asymmetrie. 14N-ESEEM an P700•+ in den Kristallen erlaubte darüberhinaus auch die sehr genaue Bestimmung von NQR-Parametern K und eta.
 ln H1-ENDOR-Experimenten an Mutanten der Grünalge Chlamydomonas reinhardtii wurde erstmals eine Aminosäure in unmittelbarer Nachbarschaft von P700•+ spektroskopisch genachgewiesen: Histidin 656 in der PsaB-Untereinheit des Proteins.
Effects of Quasi-Orthogonal EMission Modes on the Rotation Measures of Pulsars
Creators: name: Ramachandran, R.
name: Backer, D. C.
name: Rankin, J. M.
name: Weisberg, J. M.
name: Devine, K. E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report here the discovery of a significant source of systematic error in the rotation measure determinations of pulsars. Conventional analysis of high sensitivity polarimetric observations of PSR B2016+28 display variation of the rotation measure of $\pm$15 rad m$^{-2}$ (around the mean value of -34.6 rad m$^{-2}$) across the pulse profile. Analysis of single pulse data shows that this variation is an artifact of the incoherent superposition of quasi-orthogonal polarisation modes along with the frequency dependence of relative strength and/or quasi-orthogonality of the modes. Quasi-orthogonal polarization is common among pulsars, and therefore this effect needs to be taken into account in the interpretation of pulsar rotation measures.
description: Accepted for publication in the Astrophysical Journal
Productivity and the Welfare of Nations
Creators: name: Basu, Susanto
name: Pascali, Luigi
name: Schiantarelli, Fabio
name: Basu, Susanto
name: Pascali, Luigi
name: Schiantarelli, Fabio
Publisher: name: Unknown
Year: 2013
Subjects: subject: Financial Economics
subject: Productivity
subject: Welfare
subject: TFP
subject: Solow Residual

description: We show that the welfare of a countryís inÖnitely-lived representative consumer is summarized, to a Örst order, by total factor productivity (TFP) and by the capital stock per capita. These variables su¢ ce to calculate welfare changes within a country, as well as welfare di§erences across countries. The result holds regardless of the type of production technology and the degree of product market competition. It applies to open economies as well, if TFP is constructed using domestic absorption, instead of gross domestic product, as the measure of output. Welfare relevant TFP needs to be constructed with prices and quantities as perceived by consumers, not Örms. Thus, factor shares need to be calculated using after-tax wages and rental rates, and will typically sum to less than one. These results are used to calculate welfare gaps and growth rates in a sample of advanced countries with high-quality data on output, hours worked, and capital. We also present evidence for a broader sample that includes both advanced and developing countries.
The Impact of Distance Uncertainties on Local Luminosity and Mass Functions
Creators: name: Masters, Karen L.
name: Haynes, Martha P.
name: Giovanelli, Riccardo
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to investigate discrepancies between recent published estimates of the the HI mass function (HIMF), we explore the impact of distance uncertainties on the derivation of the faint end slope of mass and luminosity functions of galaxies in the local volume by deriving HIMFs from mock HI surveys. We consider various survey geometries and depths and compare the HIMFs measured when using ``real'' distances, distances derived by assuming pure Hubble flow and distances assigned from parametric models of the local velocity field. The effect is variable and dependent on the exact survey geometry, but can easily lead to incorrect estimates of the HIMF, particularly at the low mass end. We show that at least part of the discrepancies among recent derivations of the HIMF can be accounted for by the use of different methods to assign distances. We conclude that a better understanding of the local velocity field will be necessary for accurate determinations of the local galaxy luminosity and mass functions.
description: 4 pages, accepted to ApJL
The possible disappearance of a massive star in the low metallicity galaxy PHL 293B
Creators: name: Allan, Andrew
name: Groh, Jose
name: Mehner, Andrea
name: Smith, Nathan
name: Boian, Ioana
name: Farrell, Eoin
name: Andrews, Jennifer
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate a suspected very massive star in one of the most metal-poor dwarf galaxies, PHL~293B. Excitingly, we find the sudden disappearance of the stellar signatures from our 2019 spectra, in particular the broad H lines with P~Cygni profiles that have been associated with a massive luminous blue variable (LBV) star. Such features are absent from our spectra obtained in 2019 with the ESPRESSO and X-shooter instruments of the ESO's VLT. We compute radiative transfer models using CMFGEN that fit the observed spectrum of the LBV and are consistent with ground-based and archival Hubble Space Telescope photometry. Our models show that during 2001--2011 the LBV had a luminosity $L_* = 2.5-3.5 \times 10^6 ~L_{\odot}$, a mass-loss rate $\dot{M} = 0.005-0.020 ~M_{\odot}$~yr$^{-1}$, a wind velocity of 1000~km~s$^{-1}$, and effective and stellar temperatures of $T_\mathrm{eff} = 6000-6800$~K and $T_\mathrm{*}=9500-15000$~K. These stellar properties indicate an eruptive state. We consider two main hypotheses for the absence of the broad emission components from the spectra obtained since 2011. One possibility is that we are seeing the end of an LBV eruption of a surviving star, with a mild drop in luminosity, a shift to hotter effective temperatures, and some dust obscuration. Alternatively, the LBV could have collapsed to a massive black hole without the production of a bright supernova.
description: 8, pages, 7 figures, MNRAS accepted ; see also the ESO press release at: https://www.eso.org/public/news/eso2010/
title: Assessment of Maize Yield Response to Agricultural Management Strategies Using the DSSAT–CERES-Maize Model in Trans Nzoia County in Kenya
Creators: name: Kipkulei, Harison Kiplagat
name: Bellingrath-Kimura, Sonoko Dorothea
name: Lana, Marcos
name: Ghazaryan, Gohar
name: Baatz, Roland
name: Boitt, Mark
name: Chisanga, Charles B.
name: Rotich, Brian
name: Sieber, Stefan
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: Calibration
subject: CERES-Maize
subject: DSSAT
subject: GLUE
subject: Maize
subject: Trends
subject: 630 Landwirtschaft und verwandte Bereiche

description: Maize production in low-yielding regions is influenced by climate variability, poor soil fertility, suboptimal agronomic practices, and biotic influences, among other limitations. Therefore, the assessment of yields to various management practices is, among others, critical for advancing site-specific measures for production enhancement. In this study, we conducted a multiseason calibration and evaluation of the DSSAT–CERES-Maize model to assess the maize yield response of two common cultivars grown in Trans Nzoia County in Kenya under various agricultural strategies, such as sowing dates, nitrogen fertilization, and water management. We then applied the Mann–Kendall (MK), and Sen’s Slope Estimator (SSE) tests to establish the yield trends and magnitudes of the different strategies. The evaluated model simulated long-term yields (1984–2021) and characterized production under various weather regimes. The model performed well in simulating the growth and development of the two cultivars, as indicated by the model evaluation results. The RMSE for yield was 333 and 239 kg ha −1 for H614 and KH600-23A, respectively, representing a relative error (RRMSE) of 8.1 and 5.1%. The management strategies assessment demonstrated significant feedback on sowing dates, nitrogen fertilization, and cultivars on maize yield. The sowing date conducted in mid-February under fertilization of 100 kg of nitrogen per hectare proved to be the best strategy for enhancing grain yields in the region. Under the optimum sowing dates and fertilization rate, the average yield for cultivar KH600-23A was 7.1% higher than that for H614. The MK and SSE tests revealed a significant (p < 0.05) modest downwards trend in the yield of the H614 cultivar compared to the KH600-23A. The eastern part of Trans Nzoia County demonstrated a consistent downwards trend for the vital yield enhancement strategies. Medium to high nitrogen levels revealed positive yield trends for more extensive coverage of the study area. Based on the results, we recommend the adoption of the KH600-23A cultivar which showed stability in yields under optimum nitrogen levels. Furthermore, we recommend measures that improve soil quality and structure in the western and northern parts, given the negative model response on maize yield in these areas. Knowledge of yield enhancement strategies and their spatial responses is of utmost importance for precision agricultural initiatives and optimization of maize production in Trans Nzoia County.
Outside the Frame : Goddesses and Empty Space in the Work of Nancy Spero
Creators: name: Key, Liza
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
TECHNOLOGICAL REVOLUTIONS: WHICH ONES, HOW MANY AND WHY IT MATTERS: A NEO-SCHUMPETERIAN VIEW
Creators: name: Perez, Carlota
name: Leach, Tamsin Murray
Publisher: name: Zenodo
Year: 2021
Subjects: industry4.0
ditital transformation
technological revolutions

description: This paper provides a critical survey of existing studies on the relationship between technological revolutions and economic growth in the industrial era. Adopting a neoSchumpeterian perspective which emphasises the interaction between technology, policy, politics and society, we outline a periodisation and criteria to identify successive technological revolutions and compare these with those proposed by other schools of thought. These include economists, historians of economic thought and technical change, neo-Marxists and business, management and engineering scholars. We argue that the differences in interpretations stem from the focus and premises adopted by each author and from the types of interactions studied and highlighted. The way technological revolutions are defined is important because it leads to quite different policy implications. A neo-Schumpeterian perspective widens the scope for policy intervention by admitting a potentially powerful role for the state and society in determining the trajectory of technological revolutions in their deployment phase, in contrast to technological-determinist perspectives. To illustrate this argument, we compare in detail the policy implications of Klaus Schwab’s influential ‘Industry 4.0’ concept and the neoSchumpeterian analysis of the historical regularities in the diffusion of technological revolutions. We conclude that while complementary, the neo-Schumpeterian approach provides broader criteria for shaping politics and policy making in relation to technology, social wellbeing, employment, skills and sustainability.
title: Modelling cropland expansion and its drivers in Trans Nzoia County, Kenya
Creators: name: Kipkulei, Harison Kiplagat
name: Bellingrath-Kimura, Sonoko Dorothea
name: Lana, Marcos
name: Ghazaryan, Gohar
name: Boitt, Mark
name: Sieber, Stefan
Publisher: name: Humboldt-Universität zu Berlin
Year: 2022
Subjects: subject: Cropland expansion
subject: Remote sensing
subject: Logistic regression
subject: Boosted regression trees
subject: Evidence belief functions
subject: 630 Landwirtschaft und verwandte Bereiche

description: Population growth and increasing demand for agricultural production continue to drive global cropland expansions. These expansions lead to the overexploitation of fragile ecosystems, propagating land degradation, and the loss of natural diversity. This study aimed to identify the factors driving land use/land cover changes (LULCCs) and subsequent cropland expansion in Trans Nzoia County in Kenya. Landsat images were used to characterize the temporal LULCCs in 30 years and to derive cropland expansions using change detection. Logistic regression (LR), boosted regression trees (BRTs), and evidence belief functions (EBFs) were used to model the potential drivers of cropland expansion. The candidate variables included proximity and biophysical, climatic, and socioeconomic factors. The results showed that croplands replaced other natural land covers, expanding by 38% between 1990 and 2020. The expansion in croplands has been at the expense of forestland, wetland, and grassland losses, which declined in coverage by 33%, 71%, and 50%, respectively. All the models predicted elevation, proximity to rivers, and soil pH as the critical drivers of cropland expansion. Cropland expansions dominated areas bordering the Mt. Elgon forest and Cherangany hills ecosystems. The results further revealed that the logistic regression model achieved the highest accuracy, with an area under the curve (AUC) of 0.96. In contrast, EBF and the BRT models depicted AUC values of 0.86 and 0.77, respectively. The findings exemplify the relationships between different potential drivers of cropland expansion and contribute to developing appropriate strategies that balance food production and environmental conservation.
Finite Temperature TD-DMRG for the Carrier Mobility of Organic Semiconductors
Creators: name: Li, Weitang
name: Ren, Jiajun
name: Shuai, Zhigang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A large number of non-adiabatic dynamical studies have been applied to reveal the nature of carrier transport in organic semiconductors with different approximations. We present here a "nearly exact" graphical process unit (GPU) based finite temperature TD-DMRG method to evaluate the carrier mobility in organic semiconductors as described by electron-phonon model, in particular to rubrene crystal, one of the prototypical organic semiconductors, with parameters derived from first-principles. We find that (i) TD-DMRG is a general and robust method that can bridge the gap between hopping and band picture covering a wide range of electronic coupling strength; and (ii) with realistic parameters, TD-DMRG is able to account for the experimentally observed "band-like" transport behavior ($\partial μ/ \partial T < 0$) in rubrene. We further study the long-standing puzzle of isotope effect for charge transport and unambiguously demonstrate that the negative isotope effect ($\partial μ/ \partial m < 0$ where $m$ is the atomic mass) should be universal.
Nonequilibrium Transport through a Kondo Dot in a Magnetic Field: Perturbation Theory
Creators: name: Paaske, J.
name: Rosch, A.
name: Wölfle, P.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using nonequilibrium perturbation theory, we investigate the nonlinear transport through a quantum dot in the Kondo regime in the presence of a magnetic field. We calculate the leading logarithmic corrections to the local magnetization and the differential conductance, which are characteristic of the Kondo effect out of equilibrium. By solving a quantum Boltzmann equation, we determine the nonequilibrium magnetization on the dot and show that the application of both a finite bias voltage and a magnetic field induces a novel structure of logarithmic corrections not present in equilibrium. These corrections lead to more pronounced features in the conductance, and their form calls for a modification of the perturbative renormalization group.
description: 16 pages, 7 figures
Banks and Development: Jewish Communities in the Italian Renaissance and Current Economic Performance
Creators: name: Pascali, Luigi
name: Pascali, Luigi
Publisher: name: Unknown
Year: 2013
Subjects: subject: Financial Economics
subject: Banks
subject: Economic development
subject: Persistence
subject: Jewish demography

description: Are di§erences in local banking development long-lasting? Do they a§ect long-term economic performance? I answer these questions by relying on an historical development that occurred in Italian cities during the 15th century. A sudden change in the Catholic doctrine had driven the Jews toward money lending. Cities that were hosting Jewish communities developed complex banking institutions for two reasons: Örst, the Jews were the only people in Italy who were allowed to lend for a proÖt and, second, the Franciscan reaction to Jewish usury led to the creation of charity lending institutions, the Monti di Piet‡, that have survived until today and have become the basis of the Italian banking system. Using Jewish demography in 1500 as an instrument, I provide evidence of (1) an extraordinary persistence in the level of banking development across Italian cities (2) large e§ects of current local banking development on per-capita income. Additional Örm-level analyses suggest that well-functioning local banks exert large e§ects on aggregate productivity by reallocating resources toward more e¢ cient Örms. I exploit the expulsion of the Jews from the Spanish territories in Italy in 1541 to argue that my results are not driven by omitted institutional, cultural and geographical characteristics. In particular, I show that, in Central Italy, the di§erence in current income between cities that hosted Jewish communities and cities that did not exists only in those regions that were not Spanish territories in the 16th century.
Financing Experimentation
Creators: name: Macchiavello, Rocco
name: Macchiavello, Rocco
Publisher: name: Unknown
Year: 2013
Subjects: subject: Financial Economics
subject: Experimentation
subject: Moral Hazard
subject: Adverse Selection
subject: Starting Small
subject: Competition

description: Entrepreneurs must experiment to learn how good they are at a new activity. What happens when the experimentation is Önanced by a lender? Under common scenarios, i.e., when there is the opportunity to learn by "starting small" or when "no-compete" clauses cannot be enforced ex-post, we show that Önancing experimentation can become harder precisely when it is more proÖtable, i.e., for lower values of the known-arm and for more optimistic priors. Endogenous collateral requirements (like those frequently observed in micro-credit schemes) are shown to be part of the optimal contract.
Cruelty, Plague, and the Death of the Masterpiece : Robert Rauschenberg and Antonin Artaud
Creators: name: Key, Liza
name: Langa, Helen
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
A Multi-Market Bounded Prices Model Under Rational Expectations: The Case of Corn and Soybeans in the U.S.
Creators: name: Holt, Matthew T.
name: Holt, Matthew T.
Publisher: name: Unknown
Year: 1991
Subjects: Crop Production/Industries
Demand and Price Analysis

description: This paper extends the bounded prices model under rational expectations to a multi-market setting. The resulting framework is used to estimate a supply-demand model for corn and soybeans. The estimated model is used to simulate the implications of removing price support and diversion programs over the sample period.
Additional file 1 of Risk factors for non-adherent retained placenta after vaginal delivery: a systematic review
Creators: name: Favilli, Alessandro
name: Tosto, Valentina
name: Ceccobelli, Margherita
name: Parazzini, Fabio
name: Franchi, Massimo
name: Bini, Vittorio
name: Gerli, Sandro
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Developmental Biology
subject: Science Policy

description: Additional file 1: Figure 1. Flow diagram of studies identified in the systematic review.
Litterateur artiste ou artiste litterateur : A.-L. Girodet 's Poetry of the Brush
Creators: name: Miller, Leah Elizabeth
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Magneto-optics of two-dimensional electron gases modified by strong Coulomb interactions in ZnSe quantum wells
Creators: name: Keller, D.
name: Yakovlev, D. R.
name: Astakhov, G. V.
name: Ossau, W.
name: Crooker, S. A.
name: Slobodskyy, T.
name: Waag, A.
name: Schmidt, G.
name: Molenkamp, L. W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The optical properties of two-dimensional electron gases in ZnSe/(Zn,Be)Se and ZnSe/(Zn,Be,Mg)Se modulation-doped quantum wells with electron densities up to 1.4x10^{12} cm^{-2} were studied by photoluminescence, photoluminescence excitation and reflectivity in a temperature range between 1.6 and 70 K and in external magnetic fields up to 48 T. In these structures, the Fermi energy of the two-dimensional electron gas falls in the range between the trion binding energy and the exciton binding energy. Optical spectra in this regime are shown to be strongly influenced by the Coulomb interaction between electrons and photoexcited holes. In high magnetic fields, when the filling factor of the two-dimensional electron gas becomes smaller than two, a change from Landau-level-like spectra to exciton-like spectra occurs. We attempt to provide a phenomenological description of the evolution of optical spectra for quantum wells with strong Coulomb interactions.
description: 12 pages, 12 figures
Incomparable actions of free groups
Creators: name: Conley, Clinton T.
name: Miller, Benjamin D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 03E15, 28A05 (Primary), 22F10, 37A20 (Secondary)

description: Suppose that $X$ is a Polish space, $E$ is a countable Borel equivalence relation on $X$, and $μ$ is an $E$-invariant Borel probability measure on $X$. We consider the circumstances under which for every countable non-abelian free group $Γ$, there is a Borel sequence $(\cdot_r)_{r \in \mathbb{R}}$ of free actions of $Γ$ on $X$, generating subequivalence relations $E_r$ of $E$ with respect to which $μ$ is ergodic, with the further property that $(E_r)_{r \in \mathbb{R}}$ is an increasing sequence of relations which are pairwise incomparable under $μ$-reducibility. In particular, we show that if $E$ satisfies a natural separability condition, then this is the case as long as there exists a free Borel action of a countable non-abelian free group on $X$, generating a subequivalence relation of $E$ with respect to which $μ$ is ergodic.
Effects of Environmental Policy on Trade-offs in Weed Control Management
Creators: name: Bouzaher, Aziz
name: Archer, David
name: Cabe, Richard
name: Carriquiry, Alicia
name: Shogren, Jason F.
name: Bouzaher, Aziz
name: Archer, David
name: Cabe, Richard
name: Carriquiry, Alicia
name: Shogren, Jason F.
Publisher: name: Unknown
Year: 1991
Subjects: Environmental Economics and Policy
Farm Management

description: This paper presents a novel approach for generating information for regulatory and policy analysis, based on farmers' adoption of weed control technology. A simulation model, WISH, is used to generate cost and risk information on 258 weed control strategies. · Environmental policies simulated are bans on triazines and broadcast application technology.
IMPLICATIONS AND EXISTENCE OF FEDERAL/PRIVATE FORAGE MARKET INTERDEPENDENCE
Creators: name: Collins, Alan R.
name: Collins, Alan R.
Publisher: name: Unknown
Year: 1991
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Market interdependence creates non-zero cross elasticities between federal and private forage markets. Given its existence, private forage market prices are inappropriate for determining a fair market value for federal forage under both first and second best pricing assumptions. A case study is used to empirically estimate the existence of market interdependence.
Stroboscopic quantum optomechanics
Creators: name: Brunelli, Matteo
name: Malz, Daniel
name: Schliesser, Albert
name: Nunnenkamp, Andreas
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider an optomechanical cavity that is driven stroboscopically by a train of short pulses. By suitably choosing the inter-pulse spacing we show that ground-state cooling and mechanical squeezing can be achieved, even in the presence of mechanical dissipation and for moderate radiation-pressure interaction. We provide a full quantum-mechanical treatment of stroboscopic backaction-evading measurements, for which we give a simple analytic insight, and discuss preparation and verification of squeezed mechanical states. We further consider stroboscopic driving of a pair of non-interacting mechanical resonators coupled to a common cavity field, and show that they can be simultaneously cooled and entangled. Stroboscopic quantum optomechanics extends measurement-based quantum control of mechanical systems beyond the good-cavity limit.
description: 9 + 4 pages, 5 figures
Botticelli's Madonna del Magnificat : Female Pro/creativity in Renaissance Florence
Creators: name: Miller, Leah Elizabeth
name: Butler Wingfield, Kim
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
AN INVESTIGATION OF PRICING MODELS FOR LIVE CATTLE FUTURES OPTIONS
Creators: name: Pelly, Robert A.
name: Irwin, Scott H.
name: Zulauf, Carl R.
name: Pelly, Robert A.
name: Irwin, Scott H.
name: Zulauf, Carl R.
Publisher: name: Unknown
Year: 1991
Subjects: Demand and Price Analysis
Livestock Production/Industries

description: Black's European model predicts premiums of live cattle futures options as accurately as Barone-Adesi and Whaley's American model. Implied volatility estimators generate more accurate forecasts of actual option premia than historical volatility. Bias regression results are consistent with accuracy tests. Only implied volatility-based models exhibit market timing .ability.
A relation between electromagnetically induced absorption resonances and nonlinear magneto-optics in Lambda-systems
Creators: name: Budker, D.
name: Rochester, S. M.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Recent work on Lambda-resonances in alkali metal vapors (E. Mikhailov, I. Novikova, Yu. V. Rostovtsev, and G. R. Welch, quant-ph/0309171, and references therein) investigated a type of electromagnetically induced absorption resonance that occurs in three-level systems under specific conditions normally associated with electromagnetically induced transparency. In this note, we show that these resonances have a direct analog in nonlinear magneto-optics, and support this conclusion with a calculation for a J=1->J'=0 system interacting with a single nearly circularly polarized light field in the presence of a weak longitudinal magnetic field.
description: 4 pages, 2 figures v2. revised for clarity and completeness
Orientalist Paintings : Colonialism, Gender and Art
Creators: name: Minkin, Samara
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
THE REACTION OF LIVESTOCK FUTURES PRICES TO NEW INFORMATION
Creators: name: Colling, Phil L.
name: Irwin, Scott H.
name: Zulauf, Carl R.
name: Colling, Phil L.
name: Irwin, Scott H.
name: Zulauf, Carl R.
Publisher: name: Unknown
Year: 1991
Subjects: Demand and Price Analysis
Livestock Production/Industries

description: Effects of USDA Hogs and Pigs reports on live hog, pork belly, live cattle and feeder cattle futures prices are examined. Evidence suggests that some of those prices underreact or overreact initially to unanticipated information contained in the Hogs and Pigs reports. However, price-trend following and contrarian trading strategies generate profits only for some of the pork belly, live cattle and feeder cattle contracts. These results, which hold for both in- and out-of-sample analysis, suggest that with respect to the Hogs and Pigs report, the live hog futures market is economically efficient but some inefficiencies exist in the pork belly, live cattle, and feeder cattle futures markets.
TROPICAL DEFORESTATION AND AGRICULTURAL DEVELOPMENT IN LATIN AMERICA
Creators: name: Southgate, Douglas
name: Southgate, Douglas
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural and Food Policy
Community/Rural/Urban Development
Environmental Economics and Policy

description: If agricultural frontisr expansion were caused exclusively by increasing demands for agricultural commodities, the prospects for containing frontier expansion in Latin America would be very bleak indeed. Throughout the region, populations are overwhelmingly young. With numbers of women capable of bearing children expected to rise far many more years, continued population growth is inevitable, even with the decline in fertility rates currently taking place in nearly -every part of the Western Hemisphere. As the number of people demanding ta be fed increases, pressure on natural resource inputs to agrfc-ultural production will mount. This paper's regression analysis of the causes of agriculture's geographi~ expansion in twenty_-three Latin American countries yields insights on how this pressure can be accomodated. Specifically, growth in crop and livestock yields, which is associated with investment in non-land assets in the agricultural sector, is shown to alleviate the pressure for frontier expansion associated with enhanced demand for food. This finding suggests that there are important complementarities between agricultural development and conservation of tropical forests and other natural environments in Latin America.
Why Do Employees Participate in Innovation? Skills and Organisational Design Issues and The Ongoing Technological Transformation
Creators: name: Greenan Nathalie
name: Napolitano Slvia
Publisher: name: Zenodo
Year: 2021
Subjects: technological transformation
ambidexterity
tensions
innovative work behaviour
organisational design
skills

description: There is a recent and growing literature on the consequences of the ongoing technological
 transformation on skills. Most of the time it views technological progress as an exogenous
 shock that impacts the relative demands for labour with different skills. This chapter takes as
 a starting point that the technological transformation is the results of organisational choices.
 Hence it reviews a literature relating to what is going on upstream rather than downstream in
 the innovation process. In particular, it addresses how organisations take advantage of new
 technological opportunities to reform their designs, how they create work environments that
 favour innovative work behaviour and why employees engage their resources by
 participating to innovation.
AJAE EDITORSHIP LOCATION AND REGIONAL DISTRIBUTION OF AUTHORS: 1944-89
Creators: name: Hurt, K. J.
name: Broder, J. M.
name: Ervin, R. T.
name: Segarra, E.
name: Hurt, K. J.
name: Broder, J. M.
name: Ervin, R. T.
name: Segarra, E.
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural and Food Policy
Teaching/Communication/Extension/Profession

description: Relationships between editorship location and regional distribution of authors in the AJAE are examined for 15 editorship changes from 1944-1989. Mann-Whitney U tests of changes in citations were conducted. Results indicate that editorship location had short-term effects on the regional distribution of authors. Implications for editorial policies were discussed.
Additional file 1 of The future of meniscus science: international expert consensus
Creators: name: DePhillipo, Nicholas N.
name: LaPrade, Robert F.
name: Zaffagnini, Stefano
name: Mouton, Caroline
name: Seil, Romain
name: Beaufils, Philippe
Publisher: name: figshare
Year: 2021
Subjects: Medicine
Molecular Biology
Biotechnology
Cancer
Science Policy

description: Additional file 1 Supplement 1 The survey questionnaire with responses from expert meniscus consensus*.
Memory, anticipation, action – working with Troy D. Zars
Creators: name: Wolf, Reinhard
name: Heisenberg, Martin
name: Brembs, Björn
name: Waddell, Scott
name: Mishra, Aditi
name: Kehrer, Abigail
name: Angelynn Simenson
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 111714 Mental Health
subject: FOS: Health sciences

description: We present here our reflections on the scientific work of the late Troy D. Zars (1967 – 2018), on what it was like to work with him, and what it means to us. A common theme running through his work is that memory systems are not for replaying the past. Rather, they are forward-looking systems, providing whatever guidance past experience has to offer for anticipating the outcome of future actions. And in situations where no such guidance is available trying things out is the best option. Working with Troy was inspiring precisely because of the optimism inherent in this concept and that he himself embodied. Our reflections highlight what this means to us as his former mentors, colleagues, and mentees, respectively, and what it might mean for the future of neurogenetics.
Leptonic constant of pseudoscalar B_c meson
Creators: name: Kiselev, V. V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We calculate the leptonic constant for the ground pseudoscalar state of B_c meson in the framework of QCD-motivated potential model taking into account the two-loop anomalous dimension for the heavy quark current in the nonrelativistic QCD as matched with the full QCD.
description: 6 pages, RevTeX4 file, 3 eps-figures, several references and remarks added
Measurable perfect matchings for acyclic locally countable Borel graphs
Creators: name: Conley, Clinton T.
name: Miller, Benjamin D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: Combinatorics (math.CO)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 03E15, 28A05 (Primary), 05C15 (Secondary)

description: We characterize the structural impediments to the existence of Borel perfect matchings for acyclic locally countable Borel graphs admitting a Borel selection of finitely many ends from their connected components. In particular, this yields the existence of Borel matchings for such graphs of degree at least three. As a corollary, it follows that acyclic locally countable Borel graphs of degree at least three generating $μ$-hyperfinite equivalence relations admit $μ$-measurable matchings. We establish the analogous result for Baire measurable matchings in the locally finite case, and provide a counterexample in the locally countable case.
Comment on "Amplitude of waves in the Kelvin-wave cascade"
Creators: name: Sonin, E. B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: In the recently published preprint arXiv:200.02610 Eltsov and L'vov calculated the amplitudes of waves in the Kelvin-wave cascades. This returns us to the rather old, but still unresolved dispute on the role of the tilt symmetry and the locality in the Kelvin-wave cascade. The estimations by Eltsov and L'vov show that the possible nonlocality of the energy flux in the Kelvin-wave cascade has no essential effect on the Kelvin-wave cascade in the 3D vortex tangle.
description: 2 pages, published version
Uptown /Downtown : The Ashcan School, John Sloan and the Image of Women in New York City
Creators: name: Minkin, Samara
name: Langa, Helen
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Measure reducibility of countable Borel equivalence relations
Creators: name: Conley, Clinton T.
name: Miller, Benjamin D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 03E15, 28A05 (Primary), 22F10, 37A20 (Secondary)

description: We show that every basis for the countable Borel equivalence relations strictly above $\mathbb{E}_0$ under measure reducibility is uncountable, thereby ruling out natural generalizations of the Glimm-Effros dichotomy. We also push many known results concerning the abstract structure of the measure reducibility hierarchy to its base, using arguments substantially simpler than those previously employed.
POLICY IMPLICATIONS OF UNIT ROOT NONSTATIONARITY IN MULTIPRODUCT ACREAGE RESPONSE SYSTEMS
Creators: name: Clark, J. Stephen
name: Spriggs, John
name: Clark, J. Stephen
name: Spriggs, John
Publisher: name: Unknown
Year: 1991
Subjects: Agricultural and Food Policy
Land Economics/Use

description: This paper explores the theoretical and empirical issues in unit root non-stationarity for multiproduct acreage response systems. The policy implication of a unit root in a multivariate autoregressive time series like a system of acreage responses is very disturbing; it implies that even a one-shot government policy that influences acreage will have a permanent response associated with it. A wheat/barley acreage response system for the Prairie province region of Canada is estimated and the existence of a unit root cannot ~e rejected empirically. The response of the stationary system of acreage responses to a policy shock is shown to be radically different from the response of a non-stationary system of acreage responses even though the empirical estimates of the reduced form parameters are only marginally different between the two models.
The Trope of the Bacchante And the Iconography of Agency In 18th Century Neoclassical Painting
Creators: name: Ray, Shyla Christine
name: Broude, Norma
Publisher: name: American University (Washington, D.C.)
Year: 2023
Subjects: classificationCode: 3601
subject: Art history, theory and criticism

description: Research paper submitted to American University in partial fulfillment of the Degree of Master of Arts; approved as non-thesis option
Non-relativistic strings and branes as non-linear realizations of Galilei groups
Creators: name: Brugues, Jan
name: Curtright, Thomas
name: Gomis, Joaquim
name: Mezincescu, Luca
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct actions for non-relativistic strings and membranes purely as Wess-Zumino terms of the underlying Galilei groups.
description: references added