cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modelling soil, plant and fertilizer relationship to optimize nutrient management for chilli (Capsicum annuum L) under Alfisols of Southern India
Creators: name: Murthy, Rangaiah Krishna
name: Bhavya, Nagaraju
name: Govinda, Kasturappa
name: Kumar, Sugaturu Narayanaswamy Uday
name: Basavaraja, Pujari Kadappa
name: Saqeebulla, Hussain Sab Mohamed
name: Srivastava, Sanjay
name: Dey, Pradip
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: India is the largest producer, consumer and exporter of chilli, which covers 20% of the total area in Southern India. The imbalanced use of chemical fertilizers has detrimental effect on soil physico-chemical and biological properties thereby affecting soil and crop quality. In accordance with this concept, the field experiments were conducted to develop and validate fertilizer prescription equations for chilli crop under rainfed condition. The experiments were conducted in three phases. The basic parameters to develop the targeted yield equations were derived. Further, the developed targeted yield equations were validated in comparison with soil fertility rating approach and general recommended dose (GRD). The results revealed that 4.50, 1.76 and 2.95 kg of N, P2O5, and K2O, respectively were required for producing 100 kg of dry chilli. The STCR approach, with or without FYM, at the targeted yield of 1.30 and 1.00 t ha−1 enhanced the yield over GRD and soil fertility rating approach. The STCR approach also exhibited a higher NPK uptake, use efficiency, microbial biomass carbon and nitrogen, dehydrogenase, acid and alkaline phosphatase activity along with better profitability. Hence, STCR-targeted yield approach could improve the yield, nutrient use efficiency, soil microbial properties and economics of chilli crop.
NGC3801 caught in the act: A post-merger starforming early-type galaxy with AGN-jet feedback
Creators: name: Hota, Ananda
name: Rey, Soo-Chang
name: Kang, Yongbeom
name: Kim, Suk
name: Matsushita, Satoki
name: Chung, Jiwon
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In the current models of galaxy formation and evolution, AGN feedback is crucial to reproduce galaxy luminosity function, colour-magnitude relation and M-sigma relation. However, if AGN-feedback can indeed expel and heat up significant amount of cool molecular gas and consequently quench star formation, is yet to be demonstrated observationally. Only in four cases so far (Cen A, NGC 3801, NGC 6764 and Mrk 6), X-ray observations have found evidences of jet-driven shocks heating the ISM. We chose the least-explored galaxy, NGC 3801, and present the first ultraviolet imaging and stellar population analysisis of this galaxy from GALEX data. We find this merger-remnant early-type galaxy to have an intriguing spiral-wisp of young star forming regions (age ranging from 100--500 Myr). Taking clues from dust/PAH, HI and CO emission images we interpret NGC 3801 to have a kinamatically decoupled core or an extremely warped gas disk. From the HST data we also show evidence of ionised gas outflow similar to that observed in HI and molecular gas (CO) data, which may have caused the decline of star formation leading to the red optical colour of the galaxy. However, from these panchromatic data we interpret that the expanding shock shells from the young ($\sim$2.4 million years) radio jets are yet to reach the outer gaseous regions of the galaxy. It seems, we observe this galaxy at a rare stage of its evolutionary sequence where post-merger star formation has already declined and new powerful jet feedback is about to affect the gaseous star forming outer disk within the next 10 Myr, to further transform it into a red-and-dead early-type galaxy.
description: 5 pages letter paper, 4 figures, 1 table, (submitted)
Behavior of coffee plants under different cropping systems with a focus on mitigating water scarcity
Creators: name: Vilela, Marina Scalioni
name: Castanheira, Dalyse Toledo
name: Guimarães, Rubens José
name: de Figueiredo Carvalho, Milene Alves
name: Rezende, Tiago Teruel
name: Voltolini, Giovani Belutti
name: Faria, Mauro Magalhães Leite
name: Campos, Alisson André Vicente
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: Sustainable cropping systems can enhance the development of young coffee plants under drought conditions. The objective of this study was to evaluate the behavior of coffee plants grown under different cover crops, soil conditioners, and fertilizers to reduce the effects of water scarcity. The treatments were the association of soil cover management (Urochloa decumbens, polyethylene film, and bare soil), fertilizers (conventional and controlled release), and soil conditioners (coffee husk, agricultural gypsum, water-retaining polymer, organic compost, and control). The assessments carried out were the growth, physiology, and anatomy of coffee plants and soil moisture and resistance to penetration. A multivariate analysis of the results was performed. The coffee plants grown with soil cover (Urochloa decumbens) and organic conditioners (coffee husk and organic compost) had better agronomic performance and higher soil moisture.
A heterojunction modulation-doped Mott transistor
Creators: name: Son, Junwoo
name: Rajan, Siddharth
name: Stemmer, Susanne
name: Allen, S. James
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A heterojunction Mott field effect transistor (FET) is proposed that consists of an epitaxial channel material that exhibits an electron-correlation-induced Mott metal-to-insulator transition. The Mott material is remotely (modulation) doped with a degenerately doped conventional band insulator. An applied voltage modulates the electron transfer from the doped band insulator to the Mott material and produces transistor action by inducing an insulator-to-metal transition. Materials parameters from rare-earth nickelates and SrTiO3 are used to assess the potential of the "modulation-doped Mott FET" (ModMottFET or MMFET) as a next-generation switch. It is shown that the MMFET is characterized by unique "charge gain" characteristics as well as competitive transconductance, small signal gain and current drive.
description: The article has been accepted by Journal of Applied Physics. After it is published, it will be found at: http://jap.aip.org/
Large-time behaviour for anisotropic stable nonlocal diffusion problems with convection
Creators: name: Endal, Jørgen
name: Ignat, Liviu I.
name: Quirós, Fernando
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study the large-time behaviour of nonnegative solutions to the Cauchy problem for a nonlocal heat equation with a nonlinear convection term. The diffusion operator is the infinitesimal generator of a stable Lévy process, which may be highly anisotropic. The initial data are assumed to be bounded and integrable. The mass of the solution is conserved along the evolution, and the large-time behaviour is given by the source-type solution with this mass of a limit equation that depends on the relative strength of convection and diffusion. When diffusion is stronger than convection the original equation simplifies asymptotically to the purely diffusive nonlocal heat equation. When convection dominates, it does so only in the direction of convection, and the limit equation is still diffusive in the subspace orthogonal to this direction, with a diffusion operator that is a ``projection'' of the original one onto the subspace. The determination of this projection is one of the main issues of the paper. When convection and diffusion are of the same order the limit equation coincides with the original one. Most of our results are new even in the isotropic case in which the diffusion operator is the fractional Laplacian. We are able to cover both the cases of slow and fast convection, as long as the mass is preserved. Fast convection, which corresponds to convection nonlinearities that are not locally Lipschitz, but only locally Hölder, has not been considered before in the nonlocal diffusion setting.
description: 50 pages, 2 figures
The Ubiquity of Micrometer-Sized Dust Grains in the Dense Interstellar Medium
Creators: name: Pagani, Laurent
name: Steinacker, Jürgen
name: Bacmann, Aurore
name: Stutz, Amelia
name: Henning, Thomas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Cold molecular clouds are the birthplaces of stars and planets, where dense cores of gas collapse to form protostars. The dust mixed in these clouds is thought to be made of grains of an average size of 0.1 micrometer. We report the widespread detection of the coreshine effect as a direct sign of the existence of grown, micrometer-sized dust grains. This effect is seen in half of the cores we have analyzed in our survey, spanning all Galactic longitudes, and is dominated by changes in the internal properties and local environment of the cores, implying that the coreshine effect can be used to constrain fundamental core properties such as the three-dimensional density structure and ages and also the grain characteristics themselves.
Hospitalised poisonings in Australian children: a 10-year retrospective study
Creators: name: Arbaeen, Abrar
name: Noghrehchi, Firouzeh
name: Wheate, Nial J.
name: Cairns, Rose
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Marine Biology
subject: Science Policy

description: Paediatric poisoning is a major cause of childhood injury, and most poisonings are preventable. We aimed to describe hospitalisations resulting from poisoning and envenomation in Australian children, including demographics, cause of the exposure, hospital length of stay, rates of intensive care unit admission and in-hospital deaths. We also aimed to describe risk factors for increased length of stay and intensive care unit admission. A retrospective analysis was performed of hospitalised poisoning and envenomation cases of children (<15 years) in Australia from 1 July 2009 to 30 June 2019. A nationwide hospital admissions database was used for this study. During the 10-year study period 33,438 children were admitted to hospital due to a pharmaceutical or non-pharmaceutical poisoning/envenomation; an average of 74.8 cases per 100,000 population per year. Approximately 10 children were admitted to hospital each day for poisoning. Over 70% of these cases were due to pharmaceuticals (n = 23,628), most frequently non-opioid analgesics, anti-pyretics and anti-rheumatics (n = 8759, 37.1% of pharmaceutical exposures). The most common non-pharmaceutical exposure was contact with venomous animals and toxic plants (n = 4578, 46.7% of non-pharmaceuticals). Intentional self-harm occurred in 7833 (23.4%) of cases. Intensive care unit admission was required in 519 cases (2.5% of the 20,739 cases where this information was available), while 200 (0.96% of 20,739) needed ventilator support. Ten children (0.03%) died. Older age, female sex, poisoning with pharmaceuticals and metropolitan hospital location were associated with increased length of stay. Older age and poisoning with pharmaceuticals were also associated with intensive care unit admission. Approximately 10 children were admitted to hospital with poisoning every day in Australia. Most poisonings were due to pharmaceuticals, particularly simple analgesics that are found in most Australian homes. Severe outcomes (intensive care unit admissions and deaths) were rare.
Collective excitations across the BCS-BEC crossover induced by a synthetic Rashba spin-orbit coupling
Creators: name: Vyasanakere, Jayantha P.
name: Shenoy, Vijay B.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Synthetic non-Abelian gauge fields in cold atom systems produce a Rashba spin-orbit interaction described by a vector $\blam = (λ_x, λ_y, λ_z)$. It was recently shown [Phys. Rev. B 84, 014512 (2011)] that on increasing $λ= |\blam|$, fermions at a finite density $ρ\approx\kf^3$ evolve to a BEC like state even in the presence of a weak attractive interaction (described by a scattering length $\as$). The BEC obtained at large spin-orbit coupling ($λ\gg k_F$) is a condensate of rashbons -- novel bosonic bound pairs of fermions whose properties are determined solely by the gauge field. Here we study the collective excitations of such superfluids by constructing a Gaussian theory using functional integral methods. We derive explicit expressions for superfluid phase stiffness, sound speed and mass of the Anderson-Higgs boson that are valid for any $\blam$ and scattering length. We find that at finite $λ$, the phase stiffness is always lower than that set by the density of particles, consistent with earlier work[arXiv:1110.3565] which attributed this to the lack of Galilean invariance of the system at finite $λ$. We show that there is an emergent Galilean invariance at large $λ$, and the phase stiffness is determined by the rashbon density and mass, consistent with Leggett's theorem. We further demonstrate that the rashbon BEC state is a superfluid of anisotropic rashbons interacting via a contact interaction characterized by a rashbon-rashbon scattering length $a_R$. We show that $a_R$ goes as $λ^{-1}$ and is essentially {\em independent} of the scattering length between the fermions as long as it is nonzero. Analytical results are presented for a rashbon BEC obtained in a spherical gauge field with $λ_x = λ_y = λ_z = \fracλ{\sqrt{3}}$.
description: 8+pages, 4 figures
Trends in pediatric nonprescription analgesic/antipyretic exposures during the COVID-19 pandemic
Creators: name: Karami, Sara
name: Asonye, Cooma
name: Pinnow, Ellen
name: Pratt, Valerie
name: McCulley, Lynda
name: Dwumfour, Nana
name: Zhou, Esther H.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: To examine pediatric exposure trends involving selected nonprescription analgesics/antipyretics, before and during the COVID-19 pandemic. Using descriptive and interrupted time-series analyses, we assessed monthly United States poison center data involving pediatric (<18 years) exposures to nonprescription paracetamol (acetaminophen), ibuprofen, acetylsalicylic acid, and naproxen before (January 2015-February 2020) and during (March 2020-April 2021) the pandemic. Statins and proton pump inhibitors (prescription or nonprescription) served as controls. Most nonprescription analgesic/antipyretic exposures (75–90%) were single-substance; unintentional exposures typically involved children <6 years (84–92%), while intentional exposures involved females (82–85%) and adolescents, 13–17 years (91–93%). Unintentional exposures among children <6 years, declined for all four analgesics/antipyretics immediately after the World Health Organization declared COVID-19 a pandemic (March 11, 2020), but most significantly for ibuprofen (30–39%). Most intentional exposures were classified as suspected suicide. Intentional exposures were relatively low and stable among males. Intentional exposures in females declined immediately after the pandemic was announced but subsequently increased to pre-pandemic levels for acetylsalicylic acid and naproxen and above pre-pandemic levels for paracetamol and ibuprofen. For paracetamol, female intentional exposures increased from 513 average monthly cases in the pre-pandemic to 641 average monthly cases during the pandemic; and reached 888 cases by the end of the study period in April 2021. While for ibuprofen, average monthly cases rose from 194 in the pre-pandemic, to 223 during the pandemic; and reached 352 cases in April 2021. Patterns were similar among females 6–12 and 13–17 years. Nonprescription analgesic/antipyretic unintentional exposure cases declined among young children, while intentional exposure cases increased among females, 6–17 years, during the pandemic. Findings highlight the importance of safely storing medications and being alert to signs that adolescents may be in need of mental health support services; caregivers should seek medical care or call poison control centers for any suspected poisoning event.
Trapping photon-dressed Dirac electrons in a quantum dot studied by coherent two dimensional photon echo spectroscopy
Creators: name: Roslyak, O.
name: Gumbs, G.
name: Mukamel, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the localization of dressed Dirac electrons in a cylindrical quantum dot (QD) formed on monolayer and bilayer graphene by spatially different potential profiles. Short lived excitonic states which are too broad to be resolved in linear spectroscopy are revealed by cross peaks in the photon-echo nonlinear technique. Signatures of the dynamic gap in the two-dimensional spectra are discussed. The effect of the Coulomb induced exciton-exciton scattering and the formation of biexciton molecules are demonstrated.
Agronomic and environmental performance of 6 energy crops in a close loop with digestate fertilization
Creators: name: Maucieri, Carmelo
name: Barbera, Antonio C.
name: Giannini, Vittoria
name: Caruso, Caterina
name: Costa, Luisa Dalla
name: Borin, Maurizio
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Plant Biology

description: This study examines the growth performances, nutrient uptake and potential methane yield of six energy crops fertilized with the digestate liquid fraction (DLF) with or without arbuscular mycorrhizal fungi (AMF) inoculation. The 3-year-experiment involved the four perennial (Arundo donax L. Miscanthus × giganteus Greef et Deu, Heliantus tuberosus L. Lolium perenne L.) and two annual (Zea mays L. and Sorghum bicolor (L.) Moench × sudanense Stapf.) crops. The cumulative highest yield was observed for A. donax (128.1 ± 8.4 Mg ha−1), followed by M. × giganteus and S. bicolor (83.0 ± 8.0 Mg ha−1), H. tuberosus and Z. mays (66.2 ± 7.7 Mg ha−1) and L. perenne (31.4 ± 2.9 Mg ha−1). A. donax showed the highest estimated methane yield per hectare (11.030 Nm3 ha−1). After 3 years, the fertilization with DLF increased the initial soil Na+ content by 76.9%. During the experiment, only temporary and marginal effects were shown by AMF inoculation, which did not affect biomass production by any crop. Interestingly, AMF significantly increased the NO3-N concentration (+70%) while it reduced the NH4-N concentration in percolation water (−32.8%). DLF could be considered a viable organic fertilizer for biomass production, but the soil Na+ concentration should be carefully monitored.
Green correspondence on centric Mackey functor over fusion systems
Creators: name: Bova, Marco Praderio
Publisher: name: arXiv
Year: 2022
Subjects: subject: Representation Theory (math.RT)
subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20C20 (Primary) 20C11 (Secondary)

description: In this paper we give a definition of (centric) Mackey functor over a fusion system which generalizes the notion of Mackey functor over a group. In this context we prove that, given some conditions on a related ring, the centric Burnside ring over a fusion system (as defined by Diaz and Libman) acts on any centric Mackey functor. We also prove that the Green correspondence holds for centric Mackey functors over fusion systems. As a means to prove this we introduce a notion of relative projectivity for centric Mackey functors over fusion systems and provide a decomposition of a particular product in $\mathcal{O}\left(\mathcal{F}^c\right)_{\sqcup}$ in terms of the product in $\mathcal{O}\left(N_{\mathcal{F}}\left(H\right)^c\right)_{\sqcup}$.
Detection and emergence
Creators: name: Bonabeau, Eric
name: Dessalles, Jean-Louis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Two different conceptions of emergence are reconciled as two instances of the phenomenon of detection. In the process of comparing these two conceptions, we find that the notions of complexity and detection allow us to form a unified definition of emergence that clearly delineates the role of the observer.
description: jld-98072401
Bio-formulation in combination with inorganic fertilizer improves crop growth, productivity and economics of kharif groundnut (Arachis hypogaea L.) in Red and Laterite soils
Creators: name: Kundu, Rajib
name: Sarkar, Arindam
name: Poddar, Ratneswar
name: Jash, Subhendu
name: Moinuddin, Golam
name: Sen, Arup
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Indiscriminate application of inorganic chemicals has resulted in soil health deterioration and decline in crop produce in nutrient poor Alfisols of India. We conducted an experiment to find out the influence of different level of inorganic fertilizer and bio-formulations on nutrient uptake, crop growth and productivity of kharif groundnut in the Red and Laterite soils during 2018, 2019 and 2020. It was hypothesized that judicious application of inorganic fertilizer and bio-formulation would result in better nutrient uptake, improving nut yield and net income. We found that higher dose of inorganic fertilizer along with liquid bio-formulations yielded better results in terms of nutrient uptake, crop growth, yield and quality in groundnut. An increase of 43.2% and 57.5% in haulm and kernel N uptake; 67.6 and 98.1% in haulm and kernel P uptake; 47.4% and 57.6% in haulm and kernel K uptake was recorded, respectively, when 100% recommended dose of NPK (F4) was coupled with liquid NPK bio-formulation + Zn-solubilizing bacteria (B2) over control and was most economical (higher B:C ratio, 2.73). Groundnut being an exhaustive crop, responded well to higher levels of inorganic fertilizer and bio-formulations.
Radial HI Profiles at the Periphery of Galactic Disks: The Role of Ionizing Background Radiation
Creators: name: Abramova, O. V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Observations of neutral hydrogen in spiral galaxies reveal a sharp cutoff in the radial density profile at some distance from the center. Using 22 galaxies with known HI distributions as an example, we discuss the question of whether this effect can be associated exclusively with external ionizing radiation, as is commonly assumed. We show that before the surface density reaches $σ_{\textrm{HI}}\le 0.5 {\cal M}_\odot/{\textrm {pc}}^2$(the same for galaxies of different types), it is hard to expect the gas to be fully ionized by background radiation. For two of 13 galaxies with a sharp drop in the HI profile, the "steepening" can actually be caused by ionization. At the same time, for the remaining galaxies, the observed cutoff in the radial HI profile is closer to the center than if it was a consequence of ionization by background radiation and, therefore, it should be caused by other factors.
description: 15 pages, 6 figures
Random pure quantum states via unitary Brownian motion
Creators: name: Nechita, Ion
name: Pellegrini, Clément
Publisher: name: arXiv
Year: 2012
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We introduce a new family of probability distributions on the set of pure states of a finite dimensional quantum system. Without any a priori assumptions, the most natural measure on the set of pure state is the uniform (or Haar) measure. Our family of measures is indexed by a time parameter $t$ and interpolates between a deterministic measure ($t=0$) and the uniform measure ($t=\infty$). The measures are constructed using a Brownian motion on the unitary group $\mathcal U_N$. Remarkably, these measures have a $\mathcal U_{N-1}$ invariance, whereas the usual uniform measure has a $\mathcal U_N$ invariance. We compute several averages with respect to these measures using as a tool the Laplace transform of the coordinates.
A Recursive Method to Calculate UV-divergent Parts at One-Loop Level in Dimensional Regularization
Creators: name: Feng, Feng
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A method is introduced to calculate the UV-divergent parts at one-loop level in dimensional regularization. The method is based on the recursion, and the basic integrals are just the scaleless integrals after the recursive reduction, which involve no other momentum scales except the loop momentum itself. The method can be easily implemented in any symbolic computer language, and an implementation in Mathematica is ready to use.
description: 10 pages, 1 figure, typos fixed, to appear in Computer Physics Communications
Odd-Sum Colorings of Planar Graphs
Creators: name: Cranston, Daniel W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15, 05C69

description: A \emph{coloring} of a graph $G$ is a map $f:V(G)\to \mathbb{Z}^+$ such that $f(v)\ne f(w)$ for all $vw\in E(G)$. A coloring $f$ is an \emph{odd-sum} coloring if $\sum_{w\in N[v]}f(w)$ is odd, for each vertex $v\in V(G)$. The \emph{odd-sum chromatic number} of a graph $G$, denoted $χ_{os}(G)$, is the minimum number of colors used (that is, the minimum size of the range) in an odd-sum coloring of $G$. Caro, Petruševski, and Škrekovski showed, among other results, that $χ_{os}(G)$ is well-defined for every finite graph $G$ and, in fact, $χ_{os}(G)\le 2χ(G)$. Thus, $χ_{os}(G)\le 8$ for every planar graph $G$ (by the 4 Color Theorem), $χ_{os}(G)\le 6$ for every triangle-free planar graph $G$ (by Grötzsch's Theorem), and $χ_{os}(G)\le 4$ for every bipartite graph. Caro et al. asked, for every even $Δ\ge 4$, whether there exists $g_Δ$ such that if $G$ is planar with maximum degree $Δ$ and girth at least $g_Δ$ then $χ_{os}(G)\le 5$. They also asked, for every even $Δ\ge 4$, whether there exists $g_Δ$ such that if $G$ is planar and bipartite with maximum degree $Δ$ and girth at least $g_Δ$ then $χ_{os}(G)\le 3$. We answer both questions negatively. We also refute a conjecture they made, resolve one further problem they posed, and make progress on another.
description: 8 pages, 6 figures, to appear in Discrete Applied Math
Photometric Supernova Cosmology with BEAMS and SDSS-II
Creators: name: Hlozek, Renée
name: Kunz, Martin
name: Bassett, Bruce
name: Smith, Mat
name: Newling, James
name: Varughese, Melvin
name: Kessler, Rick
name: Bernstein, Joe
name: Campbell, Heather
name: Dilday, Ben
name: Falck, Bridget
name: Frieman, Joshua
name: Kulhmann, Steve
name: Lampeitl, Hubert
name: Marriner, John
name: Nichol, Robert C.
name: Riess, Adam G.
name: Sako, Masao
name: Schneider, Donald P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Supernova cosmology without spectroscopic confirmation is an exciting new frontier which we address here with the Bayesian Estimation Applied to Multiple Species (BEAMS) algorithm and the full three years of data from the Sloan Digital Sky Survey II Supernova Survey (SDSS-II SN). BEAMS is a Bayesian framework for using data from multiple species in statistical inference when one has the probability that each data point belongs to a given species, corresponding in this context to different types of supernovae with their probabilities derived from their multi-band lightcurves. We run the BEAMS algorithm on both Gaussian and more realistic SNANA simulations with of order 10^4 supernovae, testing the algorithm against various pitfalls one might expect in the new and somewhat uncharted territory of photometric supernova cosmology. We compare the performance of BEAMS to that of both mock spectroscopic surveys and photometric samples which have been cut using typical selection criteria. The latter typically are either biased due to contamination or have significantly larger contours in the cosmological parameters due to small data-sets. We then apply BEAMS to the 792 SDSS-II photometric supernovae with host spectroscopic redshifts. In this case, BEAMS reduces the area of the (Ω_m,Ω_Λ) contours by a factor of three relative to the case where only spectroscopically confirmed data are used (297 supernovae). In the case of flatness, the constraints obtained on the matter density applying BEAMS to the photometric SDSS-II data are Ω_m(BEAMS)=0.194\pm0.07. This illustrates the potential power of BEAMS for future large photometric supernova surveys such as LSST.
description: 25 pages, 15 figures, submitted to ApJ
C-reactive protein and drain amylase: their utility in ruling out anastomotic leakage after minimally invasive Ivor-Lewis esophagectomy
Creators: name: Stuart, Sanne K.
name: Kuypers, Toon J. L.
name: Martijnse, Ingrid S.
name: Heisterkamp, Joos
name: Matthijsen, Robert A.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Anastomotic leakage (AL) is one of the most feared complications after esophagectomy for esophageal cancer. We investigated the role of serum C-reactive protein (CRP) and drain amylase levels in the early detection of AL. This is a retrospective study of 193 patients who underwent a minimally invasive Ivor-Lewis procedure between January 2017 and October 2021. Mean CRP and median drain amylase levels between patients with and without AL were compared during the first five postoperative days (POD). ROC curves on POD 3, 4 and 5 were plotted to calculate cut-off values for CRP. In 30 of the 193 patients (16%), AL was diagnosed with a median time to diagnosis of 9 days. Mean CRP was significantly higher in patients with AL on POD 3, 4 and 5. Cut-off values of 59, 110 and 106 mg/L had a high sensitivity of 93%, 90% and 90% on POD 3, 4 and 5. No difference in median drain amylase levels was observed. CRP levels with a cut-off point of 110 mg/L on POD 4 do not improve earlier detection of AL, but have a high sensitivity for excluding AL. The value of drain amylase in the first 5 days after surgery is limited.
Rotational Symmetry Breaking in the Hidden-Order Phase of URu2Si2
Creators: name: Okazaki, R.
name: Shibauchi, T.
name: Shi, H. J.
name: Haga, Y.
name: Matsuda, T. D.
name: Yamamoto, E.
name: Onuki, Y.
name: Ikeda, H.
name: Matsuda, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A second-order phase transition is characterized by spontaneous symmetry breaking. The nature of the broken symmetry in the so-called "hidden order" phase transition in the heavy fermion compound URu2Si2, at transition temperature T_h=17.5 K, has posed a long-standing mystery. We report the emergence of an in-plane anisotropy of the magnetic susceptibility below T_h, which breaks the four-fold rotational symmetry of the tetragonal URu2Si2. Two-fold oscillations in the magnetic torque under in-plane field rotation were sensitively detected in small pure crystals. Our findings suggest that the hidden-order phase is an electronic "nematic" phase, a translationally invariant metallic phase with spontaneous breaking of rotational symmetry.
description: 4 pages, 3 figures. Free reprint as published in Science online can be accessed through http://kotai2.scphys.kyoto-u.ac.jp/member/shibauchi/index.html#Science
Less prevalent use of biologics for inflammatory bowel disease in patients from Non-Academic hospitals – a Danish register-based study of a region with 580,000 citizens
Creators: name: Krarup, Anne Lund
name: Larsen, Lone
name: Nayeb, Alev Büyükuslu
name: Grøntved, Simon
name: Johnsen, Søren Paaske
name: Esbjørn, Mette
name: Fallingborg, Jan
name: Nielsen, Gunnar Lauge
name: Allin, Kristine
name: Jess, Tine
name: Olesen, Anne Estrup
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer

description: Biologic therapy is widely used for inflammatory bowel disease (IBD) and may decrease surgery rates. However, it remains uncertain if there is unwarranted geographic variation in access to biologic therapy. The aim of the study was to explore if all patients had equal access to biologic therapy in the North Denmark Region. A cross-sectional register-based study of use of biologics, hospital contacts and surgery among all IBD patients having a hospital contact in the geographically well-defined North Denmark Region during 2016–2018. ICD-10 diagnosis codes, hospital contacts and procedure codes were retrieved from the region’s hospital registry. The population is served by an Academic Hospital and two Non-Academic Hospitals constituting three referral areas (according to postal codes). In total, 2371 patients with ulcerative colitis (UC) and 1383 patients with Crohn’s disease (CD) had a hospital contact in the region during 2016–2018. Compared to patients from the Academic Hospital, patients from the Non-Academic Hospitals experienced a lower incidence of biologic therapy for UC IRR 0.786 (0.621: 0.994), as well as for CD IRR 0.912 (0.781: 1.065). The incidence of bowel related hospital contacts were higher in patients from Non-Academic hospitals for both UC IRR 1.318 (1.207: 1.438) and CD IRR 1.165 (0.915: 1.483). Patients with IBD living in a referral area to a Non-Academic Hospital in the North Denmark Region are less likely to receive biologics. This was associated with an increased prevalence of IBD related surgical procedures.
HERMES Core and Instrument Packages
Creators: name: Robbertz, Andrew
name: Rager, Amy
name: Barrous-Dume, Damian
name: Skeberdis, Daniel
name: Christe, Steven
name: Kreisler, Steve
name: Mercer, Tony
name: Paterson, William R.
Publisher: name: Zenodo
Year: 2023

description: The Heliophysics Environmental and Radiation Measurement Experiment Suite (HERMES) Science Operation Center (SOC) team has developed a series of python packages to enable easier access to heliophysics measurement data. The HERMES core package contains Python interfaces for the loading, calibrating, plotting, validating, and saving of measurement data through Common Data Format (CDF) files. Additional packages are created for HERMES instruments to provide specific calibration and processing functionality. The abstraction of intricate, high heritage, data formats, such as CDF files, in Python enables easier analysis and opens doors for greater participation in heliophysics science.
Common Origin of the Circular-dichroism Pattern in ARPES of SrTiO3 and CuxBi2Se3
Creators: name: Ishida, Y.
name: Kanto, H.
name: Kikkawa, A.
name: Taguchi, Y.
name: Ito, Y.
name: Ota, Y.
name: Okazaki, K.
name: Malaeb, W.
name: Mulazzi, M.
name: Okawa, M.
name: Watanabe, S.
name: Chen, C. -T.
name: Kim, M.
name: Bell, C.
name: Kozuka, Y.
name: Hwang, H. Y.
name: Tokura, Y.
name: Shin, S.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Circular dichroism in the angular distribution (CDAD) of photoelectrons from SrTiO3:Nb and CuxBi2Se3 is investigated by 7-eV laser ARPES. In addition to the well-known node that occurs in CDAD when the incidence plane matches the mirror plane of the crystal, we show that another type of node occurs when the mirror plane of the crystal is vertical to the incidence plane and the electronic state is two dimensional. The flower-shaped CDAD's occurring around the Fermi level of SrTiO3:Nb and around the Dirac point of CuxBi2Se3 are explained on equal footings. We point out that the penetration depth of the topological states of CuxBi2Se3 depends on momentum.
The Fixed Point of the Composition of Derivatives
Creators: name: Elekes, Márton
name: Keleti, Tamás
name: Prokaj, Vilmos
Publisher: name: arXiv
Year: 2011
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: Primary 26A99, Secondary 26A15, 26B99, 54H25

description: We give an affirmative answer to a question of K. Ciesielski by showing that the composition $f\circ g$ of two derivatives $f,g:[0,1]\to[0,1]$ always has a fixed point. Using Maximoff's Theorem we obtain that the composition of two $[0,1]\to[0,1]$ Darboux Baire-1 functions must also have a fixed point.
Invertebrate fouling community composition associated with Pacific oyster (Crassostrea gigas) suspended tray culture
Creators: name: Switzer, Soleil Elana
Publisher: name: University of British Columbia
Year: 2010

description: Fouling organisms associated with suspended oyster aquaculture can significantly increase operational costs for growers and significantly decrease product marketability. Currently, there is little information available on the fouling communities present on deep-water, suspended tray Pacific oysters (Crassostrea gigas). In general, the industry practice in tray production of Pacific oyster is to use plastic trays, but a new polyvinyl-coated metal tray, which accommodates higher oyster densities, has recently become available. The objectives of this thesis were firstly, to assess whether differences exist in the extent of tray fouling between the 2 tray types using abundance, species richness, biomass, and dominance (univariate analyses) and the Bray-Curtis Dissimilarity Coefficient (multivariate, cluster analysis) as measures (Chapter 2) and secondly, to describe variation in the fouling organisms present on the oysters in the 2 tray types using the same univariate and multivariate analyses (Chapter 3). This study took place on a commercial oyster farm between the months of October 2006 and October 2007. Overall, there was little difference in the extent of fouling communities between the tray types, although a few species were present on plastic trays only, but in very low abundance. The fouling communities associated with the trays and oysters were studied in the winter, spring, summer (tray only) and fall to determine seasonal variation in the fouling communities. Abundance, species richness, biomass and dominance in the tray fouling communities were affected by season with the greatest values in July and the lowest values in January. Season also influenced the oyster fouling communities. Abundance, biomass and dominance of the fouling communities on the oysters was higher in October, while species richness was lowest in January compared to April or October. The seasonal changes observed in the fouling communities on both the trays and oysters were driven largely by a few species. High abundances of Caprella mutica and Mytilus sp. on the trays in July could impact oyster growth through the reduction of water flow through the trays or, in the case of Mytilus sp., through direct competition with the oysters for food and/or space.
Calculations of the Structure of Basin Volumes for Mechanically Stable Packings
Creators: name: Ashwin, S. S.
name: Blawzdziewicz, J.
name: O'Hern, C. S.
name: Shattuck, M. D.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: There are a finite number of distinct mechanically stable (MS) packings in model granular systems composed of frictionless spherical grains. For typical packing-generation protocols employed in experimental and numerical studies, the probabilities with which the MS packings occur are highly nonuniform and depend strongly on parameters in the protocol. Despite intense work, it is extremely difficult to predict {\it a priori} the MS packing probabilities, or even which MS packings will be the most versus the least probable. We describe a novel computational method for calculating the MS packing probabilities by directly measuring the volume of the MS packing `basin of attraction', which we define as the collection of initial points in configuration space at {\it zero packing fraction} that map to a given MS packing by following a particular dynamics in the density landscape. We show that there is a small core region with volume $V^c_n$ surrounding each MS packing $n$ in configuration space in which all initial conditions map to a given MS packing. However, we find that the MS packing probabilities are very weakly correlated with core volumes. Instead, MS packing probabilities obtained using initially dilute configurations are determined by complex geometric features of the basin of attraction that are distant from the MS packing.
description: 8 pages, 11 figures, 1 table
An arithmetic valuative criterion for proper maps of tame algebraic stacks
Creators: name: Bresciani, Giulio
name: Vistoli, Angelo
Publisher: name: arXiv
Year: 2022
Subjects: subject: Algebraic Geometry (math.AG)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: The valuative criterion for proper maps of schemes has many applications in arithmetic, e.g. specializing $\mathbb{Q}_{p}$-points to $\mathbb{F}_{p}$-points. For algebraic stacks, the usual valuative criterion for proper maps is ill-suited for these kind of arguments, since it only gives a specialization point defined over an extension of the residue field, e.g. a $\mathbb{Q}_{p}$-point will specialize to an $\mathbb{F}_{p^{n}}$-point for some $n$. We give a new valuative criterion for proper maps of tame stacks which solves this problem and is well-suited for arithmetic applications. As a consequence, we prove that the Lang-Nishimura theorem holds for tame stacks.
Notes on higher-dimensional partitions
Creators: name: Govindarajan, Suresh
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We show the existence of a series of transforms that capture several structures that underlie higher-dimensional partitions. These transforms lead to a sequence of triangles whose entries are given combinatorial interpretations as the number of particular types of skew Ferrers diagrams. The end result of our analysis is the existence of a triangle, that we denote by F, which implies that the data needed to compute the number of partitions of a given positive integer is reduced by a factor of half. The number of spanning rooted forests appears intriguingly in a family of entries in the triangle F. Using modifications of an algorithm due to Bratley-McKay, we are able to directly enumerate entries in some of the triangles. As a result, we have been able to compute numbers of partitions of positive integers <= 25 in any dimension.
description: 36 pages; Mathematica file attached; See http://www.physics.iitm.ac.in/~suresh/partitions.html to generate numbers of partitions
The life cycle of a collaborative nursing program: the history of the nursing education program of Saskatchewan, 1996-2010
Creators: name: Olfert, Margaret Elaine
Publisher: name: Education
Year: 2012

description: Bibliography: p. 177-182
description: The object of this work was to offer a history of a collaborative nursing education program in Saskatchewan, begun in 1996 until its dissolution in 2010. Nursing education in Canada has evolved over the past century. In the beginning nursing in Canada was closely associated with hospitals as training sites for nurses, commonly with religious connections. Even when government hospitals became common, nursing education continued to be delivered generally on site in hospitals and this was true until the 1970s to mid 1990s in several Canadian jurisdictions. The shift to the collaborative efforts of the past three decades has created both challenges and benefits to the partners and programs involved. This study utilized primary and secondary sources to describe the history of a collaborative nursing program in Canada, the Nursing Education Program of Saskatchewan (NEPS). Sources included interviews with key leaders and decision makers, as well as institutional, government, and regulatory association documents which contributed to an understanding of the development, delivery, and dissolution of this first collaborative baccalaureate program in Saskatchewan. One of the direct accomplishments of the NEPS partnership was the baccalaureate degree becoming the minimal level of education for entry to practice by the year 2000, an achievement that could not have occurred by the partner institutions individually. However, challenges in the partnership included the difficulties of initially joining two different governance structures and cultures, and later a third, to become one faculty and one program. Even though an integrated model was the goal, challenges in assessing tuition fees soon necessitated a revised plan where the program resembled a two-plus-two model, which saw the first two years delivered by one institution and the second two years delivered by another. It is hoped that this examination and interpretation of the historical context, process, and impact of this unique partnership on the development of nursing programs in Saskatchewan will serve to inform future collaborative efforts in nursing education so that positive successes and opportunities are taken as models, and missteps and difficulties are avoided.