cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Effects of ozone on host-parasite relations
Creators: name: Resh, Howard Martin
Publisher: name: University of British Columbia
Year: 2010

description: Investigations of the effects of the air pollutant ozone on the growth of bush bean (Phaseolus vulgaris L. cv Pure Gold Wax) were undertaken to determine their nature and the modifications in growth responses caused by interactions of the pollutant with concurrent development of two plant pathogens, rust (Uromyces phaseoli [Rebent.] Wint.) and halo blight (Pseudomonas phaseolicola [Burkh.] Dowson). Two dosages of ozone (0.04 to 0.05 ppm = "low" and 0.09 to 0.10 ppm = "high"), administered daily during the photoperiod for 6 or 12 days, were used in most experiments. Neither dosage is sufficient to cause symptoms of acute injury. When compared with growth in filtered, ozone-free air, treatment, "low" ozone frequently resulted in enhanced growth of the host plant. "High" ozone treatment invariably resulted in impaired growth and the appearance of chronic injury symptoms after 10-12 days of treatment. A reflectance spectrophotometry method was developed to permit quantitative assessment of such injury. Growth responses to ozone in the presence of rust infection varied with infection level. In "high" ozone, the reduced dry weight gains of uninfected plants were reversed by heavy infection, leading to significant increases in total dry weight of infected leaves. Lower levels of infection, however, had little effect in modifying the nature of the growth responses of bean to ozone. The effects of heavy infection in counteracting ozone-induced growth suppression appear to be due to the ability of the fungus to maintain vigorous growth in the presence of ozone, rather than to an effect oh host susceptibility to ozone injury. Halo blight infection offered no protection against ozone stress, but on the contrary, increased the overall retardation of plant growth. The presence of rust infection offered little protection against ozone-induced premature senescence except in the "green islands" immediately surrounding the rust pustules. Higher levels of cytokinins have been associated with green islands, and both kinetin and 6-benzyladenine were found to offer some protection against ozone-induced, accelerated senescence, but not against injury to the leaf palisade cells, as revealed by reflectance measurements. Exposures of the two host-parasite systems to ozone levels used in this study revealed interactions rather than additive effects. "High" ozone in the presence or absence of the pathogen impaired plant growth with little protection offered by the pathogen to the host against the pollutant. Fungal development (before sporulation) was retarded by ozone but greater pustule frequency and the formation of secondary pustules maintained inoculum potential under ozone stress.
Weak-field approximation of effective gravitational theory with local Galilean invariance
Creators: name: Cuzinatto, R. R.
name: Pompeia, P. J.
name: de Montigny, M.
name: Khanna, F. C.
Publisher: name: arXiv
Year: 2009
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We examine the weak-field approximation of locally Galilean invariant gravitational theories with general covariance in a $(4+1)$-dimensional Galilean framework. The additional degrees of freedom allow us to obtain Poisson, diffusion, and Schrödinger equations for the fluctuation field. An advantage of this approach over the usual $(3+1)$-dimensional General Relativity is that it allows us to choose an ansatz for the fluctuation field that can accommodate the field equations of the Lagrangian approach to MOdified Newtonian Dynamics (MOND) known as AQUAdratic Lagrangian (AQUAL). We investigate a wave solution for the Schrödinger equations.
description: 15 pages
Sliding Mode Control for a Class of Nonlinear Systems
Creators: name: Dutta Abhishak
Publisher: name: Zenodo
Year: 2023
Subjects: Nonlinear system; Sliding mode control: Sliding dynamics; Uncertainty.

description: We present a unique method in this study for developing sliding mode controllers for a class of nonlinear systems. The suggested approach makes use of the sliding mode control concept to provide reliable stability and tracking performance in the presence of uncertainties and disturbances. Formulating the sliding mode control problem as an optimization problem, we obtain a set of finding effective solutions using convex optimization methods[1]. The resultant controller ensures that a sliding mode will exist and offers strong stability and tracking performance for a variety of uncertainties and disturbances [2]. The effectiveness of the proposed approach is demonstrated through simulation results on a nonlinear system. Overall, the proposed sliding mode control approach offers a promising direction for designing robust controllers for a simulation result for a variety of nonlinear systems shows how successful suggested technique. Sliding mode control (SMC) is a popular control technique that has been extensively studied due to its ability to provide robust control for uncertain systems. However, traditional SMC approaches often suffer from chattering, which can lead to undesirable high frequency oscillations in the controlled system. To address this issue, this thesis proposes a novel sliding mode control scheme for a class of nonlinear systems[3]. The proposed approach utilizes to design a controller that ensures the state trajectories of the controlled system converge to a prescribed sliding surface, while also reducing chattering. The proposed SMC scheme is designed to handle a class of nonlinear systems that are represented by a set of differential equations. Specifically, the controller is designed to stabilize the system by forcing its state trajectories to converge to a sliding surface defined by a set of inequalities. The sliding surface is chosen such that the controlled system exhibits desirable transient and steady-state performance[4]. To validate the effectiveness of the proposed approach, simulations are conducted on a nonlinear system with uncertain parameters. Results show that the proposed SMC scheme outperforms traditional SMC techniques in terms of robustness and chattering reduction. The proposed controller is able to provide robust control for the system in the presence of uncertainties and external disturbances, while also achieving fast convergence to the sliding surface with minimal chattering[5]. The proposed approach has potential applications in various fields, including electrical engineering and automation. The proposed SMC scheme can be used to design robust controllers for a variety of nonlinear systems, such as DC motor control, power electronics, and robotics. Overall, this thesis provides a comprehensive study of the SMC scheme and its potential applications in the field of electrical engineering and automation.
On the linear dispersion--linear potential quantum oscillator
Creators: name: Greiter, Martin
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We solve the bi-linear quantum oscillator H=v|p|+F|x| both quasi-classically and numerically.
description: 5 pages, 3 figures
Additional file 1 of Mania and bipolar depression: complementing not opposing poles—a post-hoc analysis of mixed features in manic and hypomanic episodes
Creators: name: Born, Christoph
name: Grunze, Heinz
name: Post, Robert M.
name: Altshuler, Lori L.
name: Kupka, Ralph
name: McElroy, Susan L.
name: Frye, Mark A.
name: Suppes, Trisha
name: Keck, Paul E.
name: Nolen, Willem A.
name: Schaerer, Lars
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 60506 Virology

description: Additional file 1: Figure S5. Average IDS-C Score by YMRS score (ODD Sample). Figure S6. Average IDS-C Score by 4-item YMRS core score (ODD Sample).
Tycho Brahe's 1572 supernova as a standard type Ia explosion revealed from its light echo spectrum
Creators: name: Krause, Oliver
name: Tanaka, Masaomi
name: Usuda, Tomonori
name: Hattori, Takashi
name: Goto, Miwa
name: Birkmann, Stephan
name: Nomoto, Ken'ichi
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Type Ia supernovae (SNe Ia) are thermonuclear explosions of white dwarf stars in close binary systems. They play an important role as cosmological distance indicators and have led to the discovery of the accelerated expansion of the Universe. Among the most important unsolved questions are how the explosion actually proceeds and whether accretion occurs from a companion or via the merging of two white dwarfs. Tycho Brahe's supernova of 1572 (SN 1572) is thought to be one of the best candidates for a SN Ia in the Milky Way. The proximity of the SN 1572 remnant has allowed detailed studies, such as the possible identification of the binary companion, and provides a unique opportunity to test theories of the explosion mechanism and the nature of the progenitor. The determination of the yet unknown exact spectroscopic type of SN 1572 is crucial to relate these results to the diverse population of SNe Ia. Here we report an optical spectrum of Tycho Brahe's supernova near maximum brightness, obtained from a scattered-light echo more than four centuries after the direct light of the explosion swept past Earth. We find that SN 1572 belongs to the majority class of normal SNe Ia. The presence of a strong Ca II IR feature at velocities exceeding 20,000 km/s, which is similar to the previously observed polarized features in other SNe Ia, suggests asphericity in SN 1572.
description: 15 pages, 3 figures - accepted for publication in Nature
Sparse Graph Learning Under Laplacian-Related Constraints
Creators: name: Tugnait, Jitendra K.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We consider the problem of learning a sparse undirected graph underlying a given set of multivariate data. We focus on graph Laplacian-related constraints on the sparse precision matrix that encodes conditional dependence between the random variables associated with the graph nodes. Under these constraints the off-diagonal elements of the precision matrix are non-positive (total positivity), and the precision matrix may not be full-rank. We investigate modifications to widely used penalized log-likelihood approaches to enforce total positivity but not the Laplacian structure. The graph Laplacian can then be extracted from the off-diagonal precision matrix. An alternating direction method of multipliers (ADMM) algorithm is presented and analyzed for constrained optimization under Laplacian-related constraints and lasso as well as adaptive lasso penalties. Numerical results based on synthetic data show that the proposed constrained adaptive lasso approach significantly outperforms existing Laplacian-based approaches. We also evaluate our approach on real financial data.
description: 13 pages, 5 figures, 3 tables. To be published in IEEE Access
Oxygen vacancy induced re-entrant spin glass behavior in multiferroic ErMnO3 thin films
Creators: name: Jang, S. Y.
name: Lee, D.
name: Lee, J. -H.
name: Noh, T. W.
name: Jo, Y.
name: Jung, M. -H.
name: Chung, J. -S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Epitaxial thin films of hexagonal ErMnO3 fabricated on Pt(111)/Al2O3(0001) and YSZ(111) substrates exhibited both ferroelectric character and magnetic ordering at low temperatures. As the temperature was reduced, the ErMnO3 films first showed antiferromagnetism. At lower temperatures, the films deposited at lower oxygen partial pressures exhibited spin glass behavior. This re-entrant spin glass behavior was attributed to competition between an antiferromagnetic interaction in the hexagonal geometry and a ferromagnetic interaction caused by a change in Mn valence induced by excess electrons from the oxygen vacancies.
description: Published in Applied Physics Letters
How Forest Area Data Reliability May Influences Tropical Deforestation Drivers Identification?""
Creators: name: Pallante Giacomo, Zoppoli Pietro
Publisher: name: คณะสิ่งแวดล้อมและทรัพยากรศาสตร์
Year: 2013
Subjects: Climate change/ Tropical forest area/ Data reliability/ Panel data

description: 2, 11, Environment and Natural Resources Journal
On the Selberg integral of the $k-$divisor function and the $2k-$th moment of the Riemann zeta function
Creators: name: Coppola, Giovanni
Publisher: name: arXiv
Year: 2009
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11N37, 11M06

description: We deeply appreciate the papers of Ivić on the links between the $2k-$th moments of the Riemann zeta function and, say, $d_k$, the $k-$divisor function. More specifically, both the one bounding the $2k-$th moment with a simple average of correlations of the $d_k$ (Palanga 1996 Conference Proceedings) and the more recent (arXiv:0708.1601v2 to appear on JTNB), which bounds the Selberg integral of $d_k$ applying the $2k-$th moment of the zeta. Building on the former paper, we apply an elementary approach (based on arithmetic averages) in order to get information on the reverse link to the second work.
description: This is (an expanded version of) my talk at JAXXVI (Plain TeX)
Long-Term Optical Continuum Color Variability of Nearby Active Galactic Nuclei
Creators: name: Sakata, Yu
name: Minezaki, Takeo
name: Yoshii, Yuzuru
name: Kobayashi, Yukiyasu
name: Koshida, Shintaro
name: Aoki, Tsutomu
name: Enya, Keigo
name: Tomita, Hiroyuki
name: Suganuma, Masahiro
name: Uchimoto, Yuka Katsuno
name: Sugawara, Shota
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We examine whether the spectral energy distribution of optical continuum emission of active galactic nuclei (AGNs) changes during flux variation, based on accurate and frequent monitoring observations of 11 nearby Seyfert galaxies and QSOs carried out in the B, V, and I bands for seven years by the MAGNUM telescope. The multi-epoch flux data in any two different bands obtained on the same night show a very tight linear flux to flux relationship for all target AGNs. The flux of the host galaxy within the photometric aperture is carefully estimated by surface brightness fitting to available high-resolution HST images and MAGNUM images. The flux of narrow emission lines in the photometric bands is also estimated from available spectroscopic data. We find that the non-variable component of the host galaxy plus narrow emission lines for all target AGNs is located on the fainter extension of the linear regression line of multi-epoch flux data in the flux to flux diagram. This result strongly indicates that the spectral shape of AGN continuum emission in the optical region does not systematically change during flux variation. The trend of spectral hardening that optical continuum emission becomes bluer as it becomes brighter, which has been reported by many studies, is therefore interpreted as the domination of the variable component of the nearly constant spectral shape of an AGN as it brightens over the non-variable component of the host galaxy plus narrow lines, which is usually redder than AGN continuum emission.
description: 47 pages, 29 figures, AASTeX, Accepted for publication in ApJ
Cross-over behavior of the localized to itinerant transition of 5f electrons in the antiferromagnetic Kondo lattice USb2
Creators: name: Feng, W.
name: Xie, D. H.
name: Luo, X. B.
name: Tan, S. Y.
name: Liu, Y.
name: Liu, Q.
name: Hao, Q. Q.
name: Zhu, X. G.
name: Zhang, Q.
name: Zhang, Y.
name: Chen, Q. Y.
name: Lai, X. C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In Uranium-based heavy fermion system, the 5f electrons display an intermediate character between partial localization and partial itinerancy, which makes the Kondo problem more complicated. Here we use scanning tunneling microscopy/spectroscopy to investigate the (001) surface of the Kondo lattice antiferromagnet USb2. Temperature-dependent dI/dV spectra from 4.7 K up to 140 K reveal several peak structures around the Fermi level. Two pronounced peaks are originated from the hybridization between the conduction and 5f electrons. We did not observe the mysteriously abrupt change of the electronic state at 45 K, which is previously reported by another STM group and attributed to a novel first-order like transition. Instead, we only observe continuous evolution of the dI/dV spectra with temperature. Furthermore, in some scanning regions, we find significant Sb atoms missing from the top layer, which gives us the opportunity to investigate the electronic structure of the U-terminated surface. For the U-terminated surface, an additional sharp peak emerges, which is closely related to the magnetic order.
description: 12 pages, 3 figures
Additional file 1 of Robotic-based ACTive somatoSENSory (Act.Sens) retraining on upper limb functions with chronic stroke survivors: study protocol for a pilot randomised controlled trial
Creators: name: Sidarta, Ananda
name: Lim, Yu Chin
name: Kuah, Christopher Wee Keong
name: Loh, Yong Joo
name: Ang, Wei Tech
Publisher: name: figshare
Year: 2021
Subjects: subject: Artificial Intelligence and Image Processing
subject: FOS: Computer and information sciences

description: Additional file 1. SPIRIT Checklist.
Extensions of Johnson's and Morita's homomorphisms that map to finitely generated abelian groups
Creators: name: Day, Matthew B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Geometric Topology (math.GT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 57N05, 20F28, 57R17

description: We extend each higher Johnson homomorphism to a crossed homomorphism from the automorphism group of a finite-rank free group to a finite-rank abelian group. We also extend each Morita homomorphism to a crossed homomorphism from the mapping class group of once-bounded surface to a finite-rank abelian group. This improves on the author's previous results [Algebr. Geom. Topol. 7 (2007):1297-1326]. To prove the first result, we express the higher Johnson homomorphisms as coboundary maps in group cohomology. Our methods involve the topology of nilpotent homogeneous spaces and lattices in nilpotent Lie algebras. In particular, we develop a notion of the "polynomial straightening" of a singular homology chain in a nilpotent homogeneous space.
description: 34 pages
The Impacts of ENSO Phases on the Variation of Rainfall and Stream Flow in theUpper Ping River Basin, Northern Thailand
Creators: name: Kanita Ueangsawat, Attachai Jintrawet
Publisher: name: คณะสิ่งแวดล้อมและทรัพยากรศาสตร์
Year: 2013
Subjects: ENSO/ El Ni?o and La Ni?a/ Upper Ping River Basin/ GMI/ Rainfall/ Stream flow

description: 2, 11, Environment and Natural Resources Journal
properties in kerala
Creators: name: Parrot
Publisher: name: Zenodo
Year: 2021

description: A good real estate agent can help you to find your dream home or any other property at correct location and affordable price.We are one of the leading real estate agent for property management in Kerala. You can find your perfect choice through our expert guidance and services.Residential properties and commercial property services are available.We are the best one for finding your dream property.Our expert team have handpicked quality properties in kerala for the clients with best standard.Our team are handling all the services for home décor,security system services and contractors.We have communication with several trusted builders and contractors in Kerala.we will makes your dream property within expected time.we are providing best solution for your requirements in terms of price and standard.Our expert team have many years of experience in this field.We guarantee standard properties and reduce the procedures and time to achieve that one.If you are looking for a dream home then we are the right option.If you are looking for a trusted real estate agent in Kerala,Then we are the right option.
Urban agriculture has potential to provide food security benefits in the UK
Creators: name: Mead, Bethan
Publisher: name: Zenodo
Year: 2021

description: This Policy Brief is an output from the N8 AgriFood Food Systems Policy Hub. It is one of a collection produced by participants on the Rapid Evidence Synthesis Training (REST) programme. REST was delivered through a collaboration between the University of Leeds, Newcastle University and the N8 AgriFood Programme, supported by Research England QR-SPF funds from the University of Leeds and the University of York.
Genetic analysis of the proximal heterochromatin of chromosome-2 of Drosophila melanogaster
Creators: name: Hilliker, Arthur James
Publisher: name: University of British Columbia
Year: 2010

description: The genetic function of Drosophila heterochromatin has been debated since its earliest description by Heitz (1933). To examine the genetic composition of the proximal region of chromosome 2 of Drosophila melanogaster, the generation of proximal deficiencies by the detachment of compound second autosomes appeared to be a promising method. Compound second autosomes were detached by gamma radiation. A fraction of the detachment products were recessive lethals owing to proximal deficiencies. Analysis of these detachment products by inter se complementation, pseudo-dominance tests with proximal mutations and alleleism tests with known deficiencies, provided evidence for at least two loci between the centromere and the light locus in 2L and one locus in 2R between the rolled locus and the centromere. These data in conjunction with cytological observations further demonstrate that rolled and light are located within the proximal heterochromatin of the second chromosome. To further this analysis, lethal alleles of the largest 2L and 2R proximal deficiencies were generated, employing, as a mutagen, ethyl methane sulphonate (EMS). Analysis of the 118 EMS induced recessive lethals and visible mutations recovered provided evidence for seven loci in the 2L heterochromatin and six loci in the 2R heterochromatin, with multiple alleles being obtained for most sites. Of these loci, one in 2L and two in 2R fall near the heterochromatic-euchromatic junction of 2L and 2R respectively. None of the 113 EMS lethals behaved as a deficiency, thereby confirming that, in Drosophila, the EMS mutagenesis method of Lewis and Bacher (1968) results in true "point" mutations. All of the heterochromatic loci uncovered in this study appear to be non-repetitive cistrons. Thus functional genetic loci are found in heterochromatin, albeit at very low density relative to euchromatin.
Additional file 1 of Clustering of multiple lifestyle behaviors among migrant, left-behind and local adolescents in China: a cross-sectional study
Creators: name: He, Li
name: Li, Xiaoyan
name: Wang, Weidong
name: Wang, Youfa
name: Qu, Haiyan
name: Zhao, Yang
name: Lin, Danhua
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy

description: Additional file 1: Table 1. Correlation matrix for lifestyle behaviors, gender and age (N = 1364) a.
Which commodities imported to the UK have the highest risk of overseas deforestation impacts?
Creators: name: Molotoks, Amy
Publisher: name: Zenodo
Year: 2021

description: This Policy Brief is an output from the N8 AgriFood Food Systems Policy Hub. It is one of a collection produced by participants on the Rapid Evidence Synthesis Training (REST) programme. REST was delivered through a collaboration between the University of Leeds, Newcastle University and the N8 AgriFood Programme, supported by Research England QR-SPF funds from the University of Leeds and the University of York.
Minimal Surfaces Unveiled from the Statistics of Turbulent Circulation Fluctuations
Creators: name: Moriconi, Luca
Publisher: name: arXiv
Year: 2021
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the surprising connection between turbulent circulation statistics and minimal surfaces, as recently established by Iyer et al. [Proc. Nat. Acad. Sci. U.S.A. 118(43), e2114679118 (2021)].
description: 5 pages, 1 figure. Published as a Commentary in PNAS
Rational Conchoids of Algebraic Curves
Creators: name: Sendra, J. R.
name: Sendra, J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 68W30, 14Q05

description: We study the rationality of the components of the conchoid to an irreducible algebraic affine plane curve, excluding the trivial cases of the isotropic lines, of the lines through the focus and the circle centered at the focus and radius the distance involved in the conchoid. We prove that conchoids having all their components rational can only be generated by rational curves. Moreover, we show that reducible conchoids to rational curves have always their two components rational. In addition, we prove that the rationality of the conchoid component, to a rational curve, does depend on the base curve and on the focus but not on the distance. Also, we provide an algorithm that analyzes the rationality of all the components of the conchoid and, in the affirmative case, parametrizes them. The algorithm only uses a proper parametrization of the base curve and the focus and, hence, does not require the previous computation of the conchoid. As a corollary, we show that the conchoid to the irreducible conics, with conchoid-focus on the conic, are rational and we give parametrizations. In particular we parametrize the {\it Limaçons of Pascal}. We also parametrize the conchoids of {\it Nicomedes}. Finally, we show to find the focuses from where the conchoid is rational or with two rational components.
TA`LIM JARAYONINI BOSHQARISHNI TAKOMILLASHTIRISH MEXANIZMLARI
Creators: name: Yuldasheva, Yulduz
Publisher: name: Zenodo
Year: 2023

description: Ushbu maqolada ta’lim jarayonini boshqarish, innovatsion texnologiya, boshqaruv, ta'lim jarayonini boshqarishni takomillashtirish mexanizmlari yoritilgan.
title: Auswirkungen der COVID-19 Pandemie auf die Qualitätsversorgung eines interdisziplinären Notfallzentrums an einem deutschen Universitätsklinikum
title: eine retrospektive observatorische Erhebung
titleType: AlternativeTitle
Creators: name: Warwas, Karin Anna
Publisher: name: Universitäts- und Landesbibliothek Bonn
Year: 2025
Subjects: subject: Infektionskrankheiten
subject: COVID-19 Pandemie
subject: Gesundheitskrise
subject: Notfallversorgung
subject: Qualitätsversorgung
subject: Patientenverhalten
subject: Universitätsklinikum Bonn
subject: ddc:610

description: Infektionskrankheiten wie COVID-19 führen zu erheblichen Herausforderungen in der Notfallversorgung und beeinflussen das Patientenverhalten nachhaltig. Diese Dissertation untersucht die Auswirkungen der COVID-19-Pandemie auf die Qualitätsversorgung eines interdisziplinären Notfallzentrums an einem deutschen Universitätsklinikum. In einer retrospektiven, observatorischen Erhebung wurden insgesamt 38.426 Patientendaten aus den Jahren 2019 und 2020 analysiert. Der Beobachtungszeitraum umfasst die erste COVID-19-Welle (KW 9–22, 2020) und die zweite COVID-19-Welle (KW 38–53, 2020). Zur Kontrolle wurden die entsprechenden Zeiträume aus dem Jahr 2019 herangezogen. Die Methodik beinhaltet die Erfassung wöchentlicher Fallzahlen, eine statistische Auswertung nach Manchester Triage System (MTS) Dringlichkeitsstufen, eine differenzierte Betrachtung von kardialen und traumatologischen Notfällen (emergent und non-emergent) sowie operativen Fachbereichen (HNO, Urologie, Allgemeinchirurgie). Zusätzlich wurden 5.844 SARS-CoV-2-Abstrichpatienten in die Analyse einbezogen.
 Die Datenauswertung konnte beweisen, dass während der ersten Welle die Fallzahlen in der Notaufnahme insgesamt zurückgingen, insbesondere in der Kategorie „non-emergent“ (MTS blau-grün). Gleichzeitig blieb der Anteil der dringlichen Notfälle (MTS orange-rot) weitgehend stabil. In der zweiten Welle zeigte sich hingegen eine Normalisierung der Patientenzahlen mit einem leichten Anstieg in den niedrig priorisierten MTS-Kategorien.
 Außerdem zeigen die Ergebnisse, dass während der Pandemie insbesondere die Zahl der Patientinnen mit niedriger Dringlichkeit zurückging, während kritische Notfälle weiterhin versorgt wurden. Besonders in operativen Fachbereichen kam es zu einem Rückgang der Patientenzahlen, was auf die Angst vor nosokomialen Infektionen zurückzuführen sein könnte. Gleichzeitig blieb die Versorgung kritisch kranker Patientinnen, auch während der Lockdown-Phasen, gewährleistet. Ein bemerkenswerter Anstieg kardiologischer Notfälle deutet darauf hin, dass Kontaktbeschränkungen und soziale Isolation zu einer verzögerten medizinischen Vorstellung führten, möglicherweise mit Auswirkungen auf die Sterblichkeit.
 Diese Untersuchung liefert wertvolle Erkenntnisse über die Anpassungsfähigkeit von Notaufnahmen in gesundheitspolitischen Krisenzeiten und zeigt auf, wie sich Pandemiebedingungen auf die Notfallversorgung auswirken.
Hedgerow planting to reach net zero targets could enhance farmland biodiversity
Creators: name: Tresise, Megan
Publisher: name: Zenodo
Year: 2021

description: This Policy Brief is an output from the N8 AgriFood Food Systems Policy Hub. It is one of a collection produced by participants on the Rapid Evidence Synthesis Training (REST) programme. REST was delivered through a collaboration between the University of Leeds, Newcastle University and the N8 AgriFood Programme, supported by Research England QR-SPF funds from the University of Leeds and the University of York.
Analysis of Acoustic Wave Propagation in a Thin Moving Fluid
Creators: name: Joly, Patrick
name: Weder, Ricardo
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q72, 35Q35, 35B35, 35C15

description: We study the propagation of acoustic waves in a fluid that is contained in a thin two-dimensional tube, and that it is moving with a velocity profile that only depends on the transversal coordinate of the tube. The governing equations are the Galbrun equations, or, equivalently, the linearized Euler equations. We analyze the approximate model that was recently derived by Bonnet-Bendhia, Duruflé and Joly to describe the propagation of the acoustic waves in the limit when the width of the tube goes to zero. We study this model for strictly monotonic stable velocity profiles. We prove that the equations of the model of Bonnet-Bendhia, Duruflé and Joly are well posed, i.e., that there is a unique global solution, and that the solution depends continuously on the initial data. Moreover, we prove that for smooth profiles the solution grows at most as $t^3$ as $t \to \infty$, and that for piecewise linear profiles it grows at most as $t^4$. This establishes the stability of the model in a weak sense. These results are obtained constructing a quasi-explicit representation of the solution. Our quasi-explicit representation gives a physical interpretation of the propagation of acoustic waves in the fluid and it provides an efficient way to compute numerically the solution.
description: 35 pages, 4 figures
Genetically engineered food crop resistance to pests typically enhances yields in sub-Saharan Africa
Creators: name: Rapley, David
Publisher: name: Zenodo
Year: 2021

description: This brief is one of a collection produced by participants on the Rapid Evidence Synthesis Training (REST) programme. REST was delivered through a collaboration between the University of Leeds, Newcastle University and the N8 AgriFood Programme, supported by Research England QR-SPF funds from the University of Leeds and the University of York.
Discovery of CWISE J052306.42-015355.4, an Extreme T Subdwarf Candidate
Creators: name: Brooks, Hunter
name: Kirkpatrick, J. Davy
name: Caselden, Dan
name: Schneider, Adam C.
name: Meisner, Aaron M.
name: Faherty, Jacqueline K.
name: Casewell, S. L.
name: Kuchner, Marc J.
name: Worlds, The Backyard
name: :
name: Collaboration, Planet 9
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present the discovery of CWISE J052306.42$-$015355.4, which was found as a faint, significant proper motion object (0.52 $\pm$ 0.08 arcsec yr$^{-1}$) using machine learning tools on the unWISE re-processing on time series images from the Wide-field Infrared Survey Explorer. Using the CatWISE2020 W1 and W2 magnitudes along with a $J-$band detection from the VISTA Hemisphere Survey, the location of CWISE J052306.42$-$015355.4 on the W1$-$W2 vs. $J-$W2 diagram best matches that of other known, or suspected, extreme T subdwarfs. As there is currently very little knowledge concerning extreme T subdwarfs we estimate a rough distance of $\le$ 68 pc, which results in a tangential velocity of $\le$ 167 km s$^{-1}$, both of which are tentative. A measured parallax is greatly needed to test these values. We also estimate a metallicity of $-1.5
description: 7 pages, 3 figures, accepted for publication in the AJ
Towards greater transparency: Digital opportunities to promote traceability in genetic engineering
Creators: name: Partridge, Natalie
Publisher: name: Zenodo
Year: 2021
Subjects: food system
genetic engineering
food safety

description: This Policy Brief is an output from the N8 AgriFood Food Systems Policy Hub. It is one of a collection produced by participants on the Rapid Evidence Synthesis Training (REST) programme. REST was delivered through a collaboration between the University of Leeds, Newcastle University and the N8 AgriFood Programme, supported by Research England QR-SPF funds from the University of Leeds and the University of York.
NP vs QMA_log(2)
Creators: name: Beigi, Salman
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Although it is believed unlikely that $\NP$-hard problems admit efficient quantum algorithms, it has been shown that a quantum verifier can solve $\NP$-complete problems given a "short" quantum proof; more precisely, $\NP\subseteq \QMA_{\log}(2)$ where $\QMA_{\log}(2)$ denotes the class of quantum Merlin-Arthur games in which there are two unentangled provers who send two logarithmic size quantum witnesses to the verifier. The inclusion $\NP\subseteq \QMA_{\log}(2)$ has been proved by Blier and Tapp by stating a quantum Merlin-Arthur protocol for 3-coloring with perfect completeness and gap $\frac{1}{24n^6}$. Moreover, Aaronson {\it et al.} have shown the above inclusion with a constant gap by considering $\widetilde{O}(\sqrt{n})$ witnesses of logarithmic size. However, we still do not know if $\QMA_{\log}(2)$ with a constant gap contains $\NP$. In this paper, we show that 3-SAT admits a $\QMA_{\log}(2)$ protocol with the gap $\frac{1}{n^{3+ε}}$ for every constant $ε>0$.
description: 10 pages. Thanks to referees, the main result is now stated in terms of 3-SAT instead of NP. Clearer proofs. To appear in Quantum Information and Computation
Additional file 1 of The high risk of malarial recurrence in patients with Plasmodium-mixed infection after treatment with antimalarial drugs: a systematic review and meta-analysis
Creators: name: Mahittikorn, Aongart
name: Masangkay, Frederick Ramirez
name: Kotepui, Kwuntida Uthaisar
name: Milanez, Giovanni De Jesus
name: Kotepui, Manas
Publisher: name: figshare
Year: 2021
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. Search terms.
Solar parks could become significant carbon stores: Active grassland management with organic fertiliser, sheep grazing and seeding could increase the amount of carbon stored in grassland soils
Creators: name: Carvalho, Fabio
Publisher: name: Zenodo
Year: 2021

description: This Policy Brief is an output from the N8 AgriFood Food Systems Policy Hub. It is one of a collection produced by participants on the Rapid Evidence Synthesis Training (REST) programme. REST was delivered through a collaboration between the University of Leeds, Newcastle University and the N8 AgriFood Programme, supported by Research England QR-SPF funds from the University of Leeds and the University of York.
Streptomycin dependency in Escherichia coli K12
Creators: name: Whitlow, Karen J.
Publisher: name: University of British Columbia
Year: 2010

description: Twenty-three spontaneous streptomycin dependent (Sm[sup d]) Escherichia coli K12 mutants were isolated from a log phase culture of wild-type streptomycin sensitive (Sm[sup s]) Escherichia coli K12. The metabolism of these mutants was characterized by a state of relaxed catabolite repression during growth on glucose. One of the more readily defined characteristics of these mutants is the loss of the wild-type phenotype of sensitivity of growth to inhibition by L-valine. In-studies involving both Sm[sup d] and Sm[sup s] Escherichia coli K12, it was shown that inhibition of growth by L-valine depended upon the level of activity of a regulatory enzyme in the isoleucine-leucine-valine (ilva) biosynthetic pathway, acetohydroxy acid synthase (AHAS). Hence, under conditions of catabolite derepression, as observed in the Sm[sup d] mutants or during growth of the wild-type parent in the presence of 5mM CAMP or on acetate, AHAS was derepressed and the sensitivity of growth to inhibition by valine was relieved. That this was a function of the level of activity of this enzyme was supported by the finding that the sensitivity of AHAS to inhibition by L-valine was identical in both wild-type and Sm[sup d] strains. In Sm[sup d] mutants all of the final products of the ilva pathway - valine, isoleucine, leucine and pantothenate were found to be involved in the regulation of the synthesis of AHAS. The close interrelationship observed in this work between dependency on streptomycin for growth and for the synthesis of catabolite sensitive enzymes, prompted a study of the influence of carbon source on antibiotic requirement. Subsequently, it was observed that Sm[sup d] Escherichia coli K12 grew at least as well on an acetate medium devoid of antibiotic as on a glucose medium containing dihydrostreptomycin (DHSM). The same observation was made with Sm[sup d] mutants of other strains of Escherichia coll. These observations are not easily explained on the basis of the current hypothesis of dependency based on a ribosomal site of action for streptomycin (or DHSM). However, the experimental observations may possibly be explained on the basis of an effect of the antibiotic on the bacterial membrane. Preliminary investigations showed that the character of the fatty acids in the membrane of Escherichia coli K12 varied both in relation to carbon source and streptomycin phenotype.
Dephasing of quantum dot exciton polaritons in electrically tunable nanocavities
Creators: name: Laucht, A.
name: Hauke, N.
name: Villas-Bôas, J. M.
name: Hofbauer, F.
name: Kaniber, M.
name: Böhm, G.
name: Finley, J. J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We experimentally and theoretically investigate dephasing of zero dimensional microcavity polaritons in electrically tunable single dot photonic crystal nanocavities. Such devices allow us to alter the dot-cavity detuning in-situ and to directly probe the influence on the emission spectrum of varying the incoherent excitation level and the lattice temperature. By comparing our results with theory we obtain the polariton dephasing rate and clarify its dependence on optical excitation power and lattice temperature. For low excitation levels we observe a linear temperature dependence, indicative of phonon mediated polariton dephasing. At higher excitation levels, excitation induced dephasing is observed due to coupling to the solid-state environment. The results provide new information on coherence properties of quantum dot microcavity polaritons.
description: Figure 2, panel (b) changed to logarithmic + linear scale
Dynamic alignment and plasmoid formation in relativistic magnetohydrodynamic turbulence
Creators: name: Chernoglazov, Alexander
name: Ripperda, Bart
name: Philippov, Alexander A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We present high resolution 2D and 3D simulations of magnetized decaying turbulence in relativistic resistive magneto-hydrodynamics. The simulations show dynamic formation of large scale intermittent long-lived current sheets being disrupted by the tearing instability into plasmoid chains. These current sheets are locations of enhanced magnetic field dissipation and heating of the plasma. We find magnetic energy spectra $\propto k^{-3/2}$, together with strongly pronounced dynamic alignment of Elsasser fields and of velocity and magnetic fields, for strong guide-field turbulence, whereas we retrieve spectra $\propto k^{-5/3}$ for the case of a weak guide-field.
description: accepted for publication in the ApJ Letters
Polarisation measurements of five pulsars with interpulses
Creators: name: Keith, M. J.
name: Johnston, S.
name: Kramer, M.
name: Weltevrede, P.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present polarisation observations of five pulsars whose profiles exhibit two distinct emission regions separated by close to 180 degrees of longitude. We fitted the position angle of the linear polarisation using the rotating vector model and convincingly show that all the pulsars have the angle between their magnetic and rotation axes close to 90 degrees. The simplest interpretation of the results is that we see `main pulse' emission from one pole and `interpulse' emission from the opposite pole. We have attempted to produce emission maps of the magnetosphere above the polar caps for each pulsar and find that the maps support the view that the emission region in pulsars is complex, even when the profile appears simple. For three pulsars, we can derive emission heights and polar maps which are consistent with emission regions located symmetrically about the magnetic axis and confined to the open field lines. For two pulsars, we find that either the emission arises from `closed' field lines or that the profiles are highly asymmetric with respect to the magnetic axis.
description: 8 pages, 5 Figures, to be published in MNRAS
Additional file 1 of The impacts of the COVID-19 pandemic on the mental health and residency training of family medicine residents: findings from a nationwide cross-sectional survey in Turkey
Creators: name: Çevik, Hüsna
name: Ungan, Mehmet
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Dynamics of anisotropic plasma at the early stages of relativistic heavy-ion collisions
Creators: name: Florkowski, W.
name: Ryblewski, R.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We discuss the evolution of anisotropic boost-invariant quark-gluon plasma possibly created at the early stages of relativistic heavy-ion collisions. Our considerations are based on the recently proposed formalism that is an extension of the relativistic perfect-fluid hydrodynamics. We analyze i) the pure partonic system described by the anisotropic phase-space distribution function and ii) the system of partons interacting with the local magnetic fields. The second analysis is a simplified attempt to include the effects of color fields on the particle dynamics. Our model results are discussed in the context of early thermalization and isotropization. Under general assumptions of the particle, energy, and momentum conservations we show that for large evolution times the ratio of the longitudinal and transverse pressures of the pure partonic system tends to zero. Hence, the system with the initial momentum distribution elongated along the beam axis always passes through the isotropic stage where the transverse and longitudinal pressures are equal. The inclusion of the magnetic field in this case gives negative contribution to the longitudinal pressure, hence the transient stage when the total longitudinal and transverse pressures become equal may be reached earlier, depending on the strength of the field.
Numerical Based Heat Transfer and Friction Factor Correlations of Rectangular Ducts Roughened With Transverse Perforated Baffles
Creators: name: Sunil CHAMOLI, Narendra Singh THAKUR
Publisher: name: Walailak University
Year: 2014
Subjects: CFD, Nusselt number, perforated baffles, open area ratio

description: 2, 11, Walailak Journal of Science and Technology
The Monitor project: Rotation periods of low-mass stars in M50
Creators: name: Irwin, Jonathan
name: Aigrain, Suzanne
name: Bouvier, Jerome
name: Hebb, Leslie
name: Hodgkin, Simon
name: Irwin, Mike
name: Moraux, Estelle
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report on the results of a time-series photometric survey of M50 (NGC 2323), a ~130 Myr open cluster, carried out using the CTIO 4m Blanco telescope and Mosaic-II detector as part of the Monitor project. Rotation periods were derived for 812 candidate cluster members over the mass range 0.2
description: 11 pages, 13 figures. Accepted for publication in MNRAS
Additional file 10 of Circular RNA circHERC4 as a novel oncogenic driver to promote tumor metastasis via the miR-556-5p/CTBP2/E-cadherin axis in colorectal cancer
Creators: name: He, Jiehua
name: Chu, Ziqiang
name: Lai, Wei
name: Lan, Qiusheng
name: Zeng, Yujie
name: Lu, Daning
name: Jin, Shaowen
name: Xu, Heyang
name: Su, Pengwei
name: Yin, Dong
name: Chu, Zhonghua
name: Liu, Lu
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer

description: Additional file 10: Figure S9. CircHERC4, miR-556-5p and CTBP2 were examined using FISH and IHC in a 20-patients cohort consist of 10 low-grade and 10 high-grade CRC samples contained in our 120-patients cohort. a Represent images of FISH in 20 paired CRC tissues. b CircHERC4 was upregulated in high-grade CRC tissues and miR-556-5p was downregulated in low-grade samples. c Correlation between circHERC4 and miR-556-5p.