cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Chemical composition, antioxidant and anticholinesterase activities of Algerian Inula conyza DC
Creators: name: Selma, Doudach
name: Sabrina, Bicha
name: Faten, Abada
name: Valentina, Parisi
name: De tommasi, Nunziatina
name: Chaouki, Bensouici
name: Ali, Bentamene
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology

description: The phytochemical study of the chloroform and ethyl acetate extracts of Inula conyza DC. identified key constituents such as graveolide, illicic acid, axillarine, axillaroside and 1,5-di-O-caffeoylquinic acid via NMR analysis. The total polyphenol and flavonoid contents were quantified, with the ethyl acetate extract showing the highest polyphenolic (693.29 ± 5.00 mg GAE/g extract) and flavonoid content (280.17 ± 3.18 mg QE/g extract). The antioxidant capacity of chloroform, ethyl acetate and n-butanol extracts was evaluated using five complementary methods (DPPH, ABTS, β-Carotene, CUPRAC and reducing power) and compared to four standards (BHT, BHA, α-tocopherol and ascorbic acid). Additionally, the anticholinesterase activity was assessed against AChE and BChE enzymes. The ethyl acetate extract demonstrated excellent antioxidant activity in DPPH (IC50: 19.74 ± 0.39 μg/mL), ABTS (IC50: 5.94 ± 0.03 μg/mL), β-Carotene assays (IC50: 1.17 ± 0.01 μg/mL), and excellent reducing capacities in CUPRAC (8.59 ± 0.17 μg/mL) and reducing power assays (11.20 ± 0.69 μg/mL). Additionally, moderate anticholinesterase activity was observed in the chloroform extract, which inhibited BChE with an IC50 of 140.20 ± 1.11 μg/mL. This study highlights the therapeutic potential of Inula conyza as a source of natural antioxidants and neuroprotective agents.
A continuing evolution in U.S. agricultural and food policy - The 1990 Act
Creators: name: Spitze, R. G. F.
name: Spitze, R. G. F.
Publisher: name: Unknown
Year: 1992
Subjects: Agricultural and Food Policy
Political Economy

description: This paper reports the results of a study of the economic content and the decision-making process of the recently adopted U.S. 1990 agricultural and food policy. It is the most comprehensive policy of its type. It represents the broadest participation of private individuals and interests groups, and will affect the economy of not only the United States, but also the economies of trading countries around the world. The study examines the economic conditions leading up to the policy, a theoretical foundation of public policy determinants, the role of economic analysis in that policy development, the provisions of the Act compared with the previous policy, and its extensive economic implications. Results of the study support features of a conceptual framework for economic policy of a participatory government. The study also reveals the unique policy process of the United States and the provisions of its price and income policy for the food and agricultural sector. Finally, this article identifies the interrelations between the 1990 policy and on-going GATT negotiations, the emerging importance of environmental and food quality issues in agricultural and food policy, and sources for further study of this Act.
Gendered impacts of fertilizer subsidy removal programs in Malawi and Cameroon
Creators: name: Gladwin, Christina H.
name: Gladwin, Christina H.
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries
International Development
Production Economics

description: Since the early 1980s, development experts and donor agencies have agreed on the importance of structural adjustment programs (SAPs) aimed at 'getting prices right'. Adoption of reforms were made preconditions for new loans or grants in many sub-Saharan African countries. In both Malawi and Cameroon, one such required reform was government's eliminating fertilizer subsidies to the small farm sector, previously used to increase the profitability of intensive agriculture while keeping food prices artificially low. The aim of this ,:>aper is to review fertilizer subsidy removal programs for their impact on farmers, who in sub-Saharan Africa are women. In theory, SAP programs should benefit women producers, because much emphasis is placed on renewing agricultural production and aligning farmgate prices with world prices. But in practice, will they benefit? Are SAPs gender-neutral and affect men and women equally, or merely gender-blind?
Ionized emission and absorption in ultraluminous X-ray sources
Creators: name: Kosec, Peter
Publisher: name: Zenodo
Year: 2022
Subjects: Ultra-luminous X-ray sources
X-ray spectroscopy

description: Ultraluminous X-ray sources are powered by super-Eddington accretion onto stellar-mass compact objects, at least a fraction of them being magnetized neutron stars. The supercritical flows of ULXs are therefore expected to launch powerful, radiation-driven outflows of ionised material from their accretion discs. Considering their extragalactic distances, ULX fluxes are low and therefore any observational detections of such outflows are challenging and rare. The first detection of a fast wind, with a velocity of 0.2c was achieved in NGC 1313 X-1 using the RGS gratings onboard XMM-Newton. Following that study, we found the first evidence for a fast outflow in a neutron star ULX, NGC 300 ULX-1. Most recently, a very large XMM campaign on the soft ULX in NGC 247 revealed a spectacular outflow with a velocity of 0.17c. In parallel to these in-depth studies on individual ULXs, we searched the soft X-ray spectra of the ULX population for any spectral lines. Over 90% of studied sources show at least 1 spectral line, and roughly a third of the sources at least 5 line detections. We found that most detected emission lines are consistent with rest-frame elemental transitions, indicating low velocity ionised plasma. Conversely, most absorption lines are shifted from their rest-frame and are therefore likely imprinted by ionised absorbers with sub-relativistic velocities (0.1-0.2c), as unambiguously shown in the few ULXs with best quality high-resolution datasets. In my talk I will present these recent results on fast outflows in ULXs.
MOESM1 of A comparison of clinical paediatric guidelines for hypotension with population-based lower centiles: a systematic review
Creators: name: Hagedoorn, Nienke
name: Zachariasse, Joany
name: Moll, Henriette
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Computational Biology

description: Additional file 1. Systematic search strategy.
Estimation and use of risk aversion coefficient for traditional dryland agriculture in western Sudan
Creators: name: Elamin, Eltighani M.
name: Rogers, LeRoy F.
name: Elamin, Eltighani M.
name: Rogers, LeRoy F.
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries
Risk and Uncertainty

description: This paper explores the importance of including risk when modeling subsistence-oriented agriculture in a developing nation. The specific objective is to measure the degree of risk aversion for typical farmers in the smallholder traditional agriculture of the Sudan. The procedure followed is to impute the farmer's risk aversion coefficient through a mathematical risk programming technique. Imputed farmers' risk aversion coefficients were used to validate the model specified and identify, for further analysis, a single risk optimal farm plan for each of the different farm situations studied.
Exploring the Integration of Psychological First Aid in Prehospital Trauma Care: A Conceptual Framework
Creators: name: Abdullah Mohammad Alkatheri*
name: Mohammed Suliman Zanim
name: Abdullah Ibrahim Aldirhami
name: Abdulhadi Ali Sahl
name: Ahmed Hussain Harthi
name: Ahmed Mousa Hunayshi
name: Abdo Ali Doshi
name: Ali Baalghayth Alkhayri
name: Abdullah Mohammed Alqahtani
name: Fahad Hamed Alsohemi
Publisher: name: Zenodo
Year: 2024
Subjects: Psychological First Aid, prehospital care, trauma care, emergency medical services, mental health.

description: Abstract: - This study explores the integration of Psychological First Aid (PFA) into prehospital trauma care, addressing the urgent need to incorporate psychological support into emergency response systems. Given that approximately 70% of individuals will experience a traumatic event in their lifetime, the psychological impact of trauma often remains unaddressed in traditional care settings. This research employs a systematic literature review methodology to assess the current state of PFA practices, analyze barriers to implementation, and develop a conceptual framework for its integration into prehospital protocols. Key findings reveal that while PFA effectively reduces immediate psychological distress, its long-term impact on conditions such as PTSD and depression remains inconclusive. Variability in training and delivery methods among responders complicates standardization and effectiveness. The proposed framework emphasizes creating safe environments, fostering social connections, and instilling hope among trauma patients. By equipping Emergency Medical Services (EMS) personnel with tailored training and resources, this research aims to enhance the overall effectiveness of trauma response systems, ultimately promoting better mental health outcomes for affected populations. The findings advocate for a cultural shift within EMS to prioritize integrated care that addresses both physical and psychological needs in the aftermath of trauma.
Energy gap closure of crystalline molecular hydrogen with pressure
Creators: name: Gorelov, Vitaly
name: Holzmann, Markus
name: Ceperley, David M.
name: Pierleoni, Carlo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We study the gap closure with pressure of crystalline molecular hydrogen. The gaps are obtained from grand-canonical Quantum Monte Carlo methods properly extended to quantum and thermal crystals, simulated by Coupled Electron Ion Monte Carlo. Nuclear zero point effects cause a large reduction in the gap ($\sim 2eV$). \CP{Depending on the structure,} the fundamental indirect gap closes \CP{between 380GPa and} 530GPa for ideal crystals and 330-380GPa for quantum crystals. Beyond this pressure the system enters into a bad metal phase where the density of states at the Fermi level increases with pressure up to $\sim$450\CP{-500} GPa when the direct gap closes. Our work partially supports the interpretation of recent experiments in high pressure hydrogen.
description: 5 pages, 5 figures, to appear on PRL
Dimensionality Effects on the Su-Schrieffer-Heeger Model
Creators: name: Zoli, Marco
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A low order diagrammatic study of the dimension dependent Su-Schrieffer-Heeger model Hamiltonian in the weak electron-phonon coupling regime is presented. Exact computation of both the charge carrier effective mass and the electron spectral function shows that electrons are good quasiparticles in the antiadiabatic limit but new features emerge in the adiabatic and intermediate regime, where the phonons and the electrons compare on the energy scale. Here we find: i) a sizeable mass enhancement over the bare band value, ii) the appearance of many transition peaks in the band bottom spectral function together with a growing loss of spectral weight at larger {\it e-ph} couplings. The onset of a polaronic state is favoured in two dimensions.
description: To be published in Physica C - 4 figures
MOESM1 of Cognitive function and cardiometabolic disease risk factors in rural South Africa: baseline evidence from the HAALSI study
Creators: name: Houle, Brian
name: Gaziano, Thomas
name: Farrell, Meagan
name: F. Gómez-Olivé
name: Kobayashi, Lindsay
name: Crowther, Nigel
name: Wade, Alisha
name: Montana, Livia
name: Wagner, Ryan
name: Berkman, Lisa
name: Tollman, Stephen
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
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: Computational Biology

description: Additional file 1. Linear regression of cognitive function (total score) on cardiometabolic indicators, sociodemographic factors, and behavioral and other risk factors, HAALSI participants, Agincourt, 2014–2015 (N = 3018). Model includes an interaction between hypertension and age group (
Electronic States and Superconductivity in Multi-layer High-Tc Cuprates
Creators: name: Mori, Michiyasu
name: Tohyama, Takami
name: Maekawa, Sadamichi
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study electronic states of multilayer cuprates in the normal phases as functions of the number of CuO_2 planes and the doping rate. The resonating valence bond wave function and the Gutzwiller approximation are used for a two-dimensional multilayer t-t'-t''-J model. We calculate the electron-removal spectral functions at (π,0) in the CuO_2 plane next to the surface to understand the angle-resolved photoemission spectroscopy (ARPES) spectra. We find that the trilayer spectrum is narrower than the bilayer spectrum but is wider than the monolayer spectrum. In the tri- and tetralayer systems, the outer CuO_2 plane has different superconducting amplitude from the inner CuO_2 plane, while each layer in the bilayer systems has same amplitude. The recent ARPES and NMR experiments are discussed in the light of the present theory.
description: 7 pages, 7 figures
Magnetic Flux Periodicity in Second Order Topological Superconductors
Creators: name: De, Suman Jyoti
name: Khanna, Udit
name: Rao, Sumathi
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The magnetic flux periodicity of $\frac{hc}{2e}$ is a well known manifestation of Cooper pairing in typical s-wave superconductors. In this paper we theoretically show that the flux periodicity of a two-dimensional second-order topological superconductor, which features zero-energy Majorana modes localized at the corners of the sample, is $\frac{hc}{e}$ instead. We further show that the periodicity changes back to $\frac{hc}{2e}$ at the transition to a topologically trivial superconductor, where the Majorana modes hybridize with the bulk states, demonstrating that the doubling of periodicity is a manifestation of the non-trivial topology of the state.
description: 9 pages, 11 figures
Systematic review on postoperative opioid use and other outcomes after lobectomy for lung cancer in the U.S.
Creators: name: Masurkar, Prajakta P.
name: Borate, Samruddhi Nandkumar
name: Goswami, Swarnali
Publisher: name: Taylor & Francis
Year: 2025
Subjects: Medicine
Biological Sciences not elsewhere classified
Cancer
Science Policy

description: This systematic review summarizes literature on postoperative opioid use in lung cancer patients after lobectomy, focusing on opioid consumption, survival, recurrence, pain scores, length of stay, readmission, and in-hospital mortality. PubMed and Embase were searched from 1 January 1993, to 31 May 2024, for observational studies on U.S. lung cancer patients. Retrospective studies reporting the outcomes of interest were included, excluding pediatric populations, non-English publications, non-lung cancer studies, reviews, meta-analyses, economic modeling papers, or interventional studies. Out of 683 identified articles, 22 studies met inclusion criteria, encompassing 77,315 patients. Commonly used opioids were morphine, hydromorphone, and fentanyl. Pain scores varied by surgical approach, with better control reported with video-assisted thoracoscopic surgery (VATS) and liposomal bupivacaine (LB). Longer hospital stays were linked to higher odds of persistent opioid use. Higher opioid doses were associated with decreased overall survival (OS) and recurrence-free survival. The review highlights the complex relationship between postoperative opioid use and outcomes in lung cancer patients post-lobectomy. Alternatives like intercostal nerve blocks with LB and VATS can reduce opioid use and enhance recovery, emphasizing personalized pain management. Future research should focus on reducing opioid overprescription and patient education to minimize long-term use.
Large-scale HI structures and the origin of radio galaxies
Creators: name: Morganti, R.
name: Oosterloo, T.
name: Tadhunter, C.
name: Emonts, B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first results of a study aimed to detect large HI structures in radio galaxies. In two of the three cases presented (Coma A and B2 0648+27), the detection of a large amount of HI distributed over several tens of kpc suggests a major merger as origin of the observed system and allows to infer when this merger must have occurred. The situation is less clear for the third object (3C 433). We propose an evolutionary sequence for one of the radio galaxies studied. The implications of this study of neutral hydrogen in nearby radio galaxies for high-z objects and ``normal'' (i.e. radio-quiet) elliptical galaxies are also discussed.
description: 7 pages, 4 figures. To appear in the proceedings of the conference "Radio Galaxies: Past, present and future", Leiden, 11-15 Nov 2002, eds. M. Jarvis et al
Acceleration sensing with magnetically levitated oscillators above a superconductor
Creators: name: Timberlake, Chris
name: Gasbarri, Giulio
name: Vinante, Andrea
name: Setter, Ashley
name: Ulbricht, Hendrik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Applied Physics (physics.app-ph)
subject: Superconductivity (cond-mat.supr-con)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We experimentally demonstrate stable trapping of a permanent magnet sphere above a lead superconductor, in vacuum pressures of $4 \times 10^{-8}$~mbar. The levitating magnet behaves as a harmonic oscillator, with frequencies in the 4-31~Hz range detected, and shows promise to be an ultrasensitive acceleration sensor. We directly apply an acceleration to the magnet with a current carrying wire, which we use to measure a background noise of $\sim 10^{-10} \ \text{m}/\sqrt{\text{Hz}}$ at 30.75~Hz frequency. With current experimental parameters, we find an acceleration sensitivity of $S_a^{1/2} = 1.2 \pm 0.2 \times 10^{-10} \ \text{g}/\sqrt{\text{Hz}}$, for a thermal noise limited system. By considering a 300~mK environment, at a background helium pressure of $1 \times 10^{-10}$~mbar, acceleration sensitivities of $S_a^{1/2} \sim 3 \times 10^{-15} \ \text{g}/\sqrt{\text{Hz}}$ could be possible with ideal conditions and vibration isolation. To feasibly measure with such a sensitivity, feedback cooling must be implemented.
description: 5 pages, 3 figures, The following article has been accepted by Applied Physics Letters
Incorporating risk in the economic analysis of agronomic trials: fertilizer use on barley in Syria
Creators: name: Mazid, Ahmed
name: Bailey, Elizabeth
name: Mazid, Ahmed
name: Bailey, Elizabeth
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries
Risk and Uncertainty

description: In the drier areas of Syria yields of barley, the principal crop, are low. Due to the variability in rainfall, fertilizer use is perceived as risky. Barley-fertilizer trials have been conducted on farmer's fields over a period of four years to investigate whether the large yield response to fertilizer observed on research sites could be achieved under farmers' conditions. Data were pooled across years and sites and response functions estimated. Simple optimization analysis shows that economic optimum fertilizer rates vary considerably with rainfall and relative prices. Historical rainfall data are combined with the estimated response functions, and stochastic dominance analysis is used to compare the riskiness of fertilizer treatments in terms of net benefits and benefit-cost ratios. Results show that, given the estimated expected rainfall in barley producing areas, fertilizer use, especially at low levels, may not be as risky as has been believed. Extensions of the methodology to include other environmental variables, or to target recommendations, are discussed.
Jupoata robusta Martins & Monne 2002
Creators: name: Nascimento, Francisco Eriberto de Lima
name: Botero, Juan Pablo
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Jupoata
Jupoata robusta

description: Jupoata robusta Martins & Monné, 2002
 Type locality: BRAZIL, São Paulo: Salesópolis (EstaÇão Biológica de Boracéia). (MZSP).
It was described from Brazil (Maranhão, Pernambuco, Goiás, Minas Gerais, Rio de Janeiro, São Paulo (holotype), Paraná, and Santa Catarina). Currently, it is also known from the Brazilian state of Bahia (Monné, 2017).
 Specimens examined: COSTA RICA, Limón (Near Guápiles town, 10°10’5.880”N, 83°46’44.400”W), 2 females, VI.2015, A. Kozlov col. (MZSP), new country record.
description: Published as part of Nascimento, Francisco Eriberto de Lima & Botero, Juan Pablo, 2018, Synopsis of the Neotropical genus Jupoata Martins & Monné, 2002 (Coleoptera: Cerambycidae), pp. 1-4 in Papéis Avulsos de Zoologia 58 on page 4, DOI: 10.11606/1807-0205/2018.58.18, http://zenodo.org/record/5235016
Frontier production functions and technical efficiency: a survey of empirical applications in agricultural economics
Creators: name: Battese, George E.
name: Battese, George E.
Publisher: name: Unknown
Year: 1992
Subjects: Crop Production/Industries
Production Economics
Research and Development/Tech Change/Emerging Technologies

description: The modelling and estimation of frontier production functions has been an important area of econometric research during the last two decades. Forsund, Lovell and Schmidt (1980) and Schmidt (1986) present reviews of the concepts and models involved and cite some of the empirical applications which had appeared to their respective times of publication. This paper seeks to update the econometric modelling of frontier production functions associated with the estimation of technical efficiency of individual firms. A survey of empirical applications in agricultural economics is an important part of the paper.
MolSSI Guidelines on APOD Cyclic Parallelization Strategy
Creators: name: Mostafanejad, Mohammad
name: Saxe, Paul
Publisher: name: Zenodo
Year: 2022
Subjects: CUDA programming
high-performance computing
GPUs
MolSSI guidelines
MolSSI best practices

description: This document is based on NVIDIA’s CUDA C++ Best Practices Guide and overviews a systematic cyclic strategy for parallelizing serial codes using CUDA toolkit. The technical details on each stage of this process can be found in MolSSI guidelines and best practices' collection in the high-performance computing section.
description: This work has been funded by the NSF OAC-1547580 and CHE-2136142 grants.
Competition between local erasure and long-range spreading of a single biochemical mark leads to epigenetic bistability
Creators: name: Ancona, Marco
name: Michieletto, Davide
name: Marenduzzo, Davide
Publisher: name: arXiv
Year: 2019
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The mechanism through which cells determine their fate is intimately related to the spreading of certain biochemical (so-called epigenetic) marks along their genome. The mechanisms behind mark spreading and maintenance are not yet fully understood, and current models often assume a long-range infection-like process for the dynamics of marks, due to the polymeric nature of the chromatin fibre which allows looping between distant sites. While these existing models typically consider antagonising marks, here we propose a qualitatively different scenario which analyses the spreading of a single mark. We define a 1D stochastic model in which mark spreading/infection occurs as a long-range process whereas mark erasure/recovery is a local process, with an enhanced rate at boundaries of infected domains. In the limiting case where our model exhibits absorbing states, we find a first-order-like transition separating the marked/infected phase from the unmarked/recovered phase. This suggests that our model, in this limit, belongs to the long-range compact directed percolation universality class. The abrupt nature of the transition is retained in a more biophysically realistic situation when a basal infection/recovery rate is introduced (thereby removing absorbing states). Close to the transition there is a range of bistability where both the marked/infected and unmarked/recovered states are metastable and long lived, which provides a possible avenue for controlling fate decisions in cells. Increasing the basal infection/recovery rate, we find a second transition between a coherent (marked or unmarked) phase, and a mixed, or random, one.
description: 11 pages, 7 figures, 2 appendices
Theoretical Study of Magnetism and Superconductivity in 3d Transition-Metal- MgB_2 Alloys
Creators: name: Singh, Prabhakar P.
name: Joseph, P. Jiji Thomas
Publisher: name: arXiv
Year: 2002
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the electronic structure of 3d transition-metal- MgB_{2} alloys, Mg_{0.97}TM_{0.03}B_{2}, (TM\equiv Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn) using KKR-CPA method in the atomic-sphere approximation. For unpolarized calculations, our results for Mg_{0.97}TM_{0.03}B_{2} alloys are similar to that of 3d impurities in other s and s-p metals. In particular, the local densities of states (DOS) associated with the 3d impurities are similar to our earlier work on 3d impurities in bulk Al. For spin-polarized calculations, we find only the alloys of V, Cr, Mn, Fe and Co with MgB_{2} to be magnetic of all the 3d elements. We also find that Cr and Mn in MgB_{2} have a relatively large local magnetic moment of 2.43 μ_{B} and 2.87 μ_{B}, respectively. We have used the unpolarized, self-consistent potentials of Mg_{0.97}TM_{0.03}B_{2} alloys, obtained within the coherent- potential approximation, to calculate the electron-phonon coupling constant λusing the Gaspari-Georffy formalism and the superconducting transition temperature T_{c} using the Allen-Dynes equation. We find that the calculated T_{c} is the lowest for Mg_{0.97}Cr_{0.03}B_{2} and the highest for Mg_{0.97}Zn_{0.03}B_{2}, in qualitative agreement with experiment. The calculated trend in variation of T_{c} from Mn to Zn is also similar to the available experimental data. Our analysis of the variation in T_{c}, in terms of the DOS and the spectral function along Γto A direction, shows the variation to be an interplay between the total DOS at the Fermi energy and the creation/removal of states along Γto A direction [P. P. Singh, cond-mat/0201093].
description: 13 pages, 8 figures
Deriving efficient frontiers for effort allocation in the management of invasive species
Creators: name: Cacho, Oscar J.
name: Hester, Susan M.
name: Cacho, Oscar J.
name: Hester, Susan M.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Health Economics and Policy
subject: Research Methods/ Statistical Methods
subject: dispersal
subject: invasive species
subject: passive surveillance
subject: search allocation
subject: spatio-temporal models

description: Invasive species cause significant losses through their effect on agriculture, human health and the environment. Their importance has increased with time owing to globalisation, as the spread of invasive species is facilitated by the increased movement of people, cargo and genetic material around the world. There is a vast literature on the economics of invasive species and their management. Here, we contribute to this literature by applying a spatio-temporal model to the allocation of surveillance resources. We focus on three questions regarding resource allocation to control a newly discovered invasion: the budget, which determines the amount of search effort available; the duration of the control program; and the allocation of surveillance and control in time and space. We also explore the complementary role of passive surveillance by members of the public. We derive efficient frontiers for effort allocation that represent the trade-off between cost and probability of eradication after inefficient strategies have been eliminated. We use the results to illustrate how to evaluate whether introduction of passive surveillance is desirable based on cost and eradication probability. We conclude by discussing the implications of our findings in the design of control programs.
Spectral Properties of the Su-Schrieffer-Heeger Model
Creators: name: Zoli, Marco
Publisher: name: arXiv
Year: 2002
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a study of the one dimensional Su-Schrieffer-Heeger model Hamiltonian by a diagrammatic perturbative method in the weak electron-phonon coupling regime. Exact computation of both the charge carrier effective mass and the electron spectral function shows that electrons are good quasiparticles in the adiabatic and antiadiabatic limits but novel features emerge in the intermediate regime, where the phonons and the electrons compare on the energy scale. Together with a sizeable mass enhancement we observe, in the latter regime, a spread of the spectral weight (among several transition peaks) associated with an increased relevance of multiphonons contributions at larger {\it e-ph} couplings. Accordingly electrons cease to be the good quasiparticles and an onset of polaron formation is favoured.
description: To appear in Solid State Communications - 5 figures
Sloanea guianensis Benth.
Creators: name: Flor, Ismael Cividini
name: Flor, Jandira Chachá Ribeiro
name: Furtado, Paulo Sérgio do Nascimento
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Oxalidales
Elaeocarpaceae
Sloanea
Sloanea guianensis

description: Sloanea guianensis (Aubl.) Benth.
Leaf gall, roll, green, glabrous, and multi-chambered (Fig. 2G).
 Previous records: The same gall has been recorded in Bertioga (SP) (Maia et al., 2008).
 Galler: Clinodiplosis sp. (Cecidomyiidae).
Leaf gall, discoid, green, glabrous and one-chambered (Fig. 2H).
 Previous records: The same gall has been recorded in Bertioga (SP) (Maia et al., 2008).
 Galler: Lasiopteridi (Cecidomyiidae).
description: Published as part of Flor, Ismael Cividini, Flor, Jandira Chachá Ribeiro & Furtado, Paulo Sérgio do Nascimento, 2018, Insect galls of the Floresta da Cicuta (Volta Redonda, RJ, Brazil), pp. 1-12 in Papéis Avulsos de Zoologia 58 on page 5, DOI: 10.11606/1807-0205/2018.58.24, http://zenodo.org/record/5235062
Optimal vessel size and output in the Australian northern prawn fishery: a restricted profit function approach
Creators: name: Pascoe, Sean
name: Vieira, Simon
name: Dichmont, Catherine M.
name: Punt, Andre´ E.
name: Pascoe, Sean
name: Vieira, Simon
name: Dichmont, Catherine M.
name: Punt, Andre´ E.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Demand and Price Analysis
subject: Industrial Organization
subject: Livestock Production/Industries
subject: Resource /Energy Economics and Policy
subject: fuel prices
subject: individual transferable quotas
subject: optimal vessel size
subject: profit function

description: Individual transferable quotas (ITQs) are to be introduced into Australia’s Northern Prawn fishery in the near future. Total allowable catches (TACs) are to be set with the objective of maximising economic efficiency in the fishery. Under ITQs, vessel owners have the ability to adjust their fishing activities to maximise profits and changes in fleet structure resulting from management changes need to be considered when determining TACs. A restricted profit function for the fishery was estimated to determine the optimal vessel characteristics and output levels as a guide to how the fleet may adjust under an ITQ system. Vessels were found to be currently close to their optimal size given average historic prices and current stock conditions. However, higher tiger prawn stocks are expected to result in the average size of vessels increasing, with rising fuel prices also likely to result in capital being substituted for fishing days. Optimal average vessel-level catches of the main species are lower than current average vessel catches for a wide range of input and output prices. These changes in vessel characteristics and behaviour need to be incorporated in the derivation of the optimal TACs if economic efficiency objectives are to be achieved.
Analytical calculation of the solid angle defined by a cylindrical detector and a point cosine source with orthogonal axes
Creators: name: Prata, M. J.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Mathematical Physics (math-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We derive analytical expressions for the solid angle subtended by a right circular cylinder at a point source with cosine angular distribution in the case where the source and the cylinder axes are mutually orthogonal.
description: 19 pages, 13 figures, Latex. Typos corrected. Accepted in Rad. Phys. Chem
Design of a Helium Passivation System for the Target Vessel of the Beam Dump Facility at CERN
Creators: name: Avigni, P.
name: Battistin, M.
name: Calviani, M.
name: Dalakov, P.
name: Kershaw, K.
name: Klier, J.
name: Lamont, M.
name: Sola, E. Lopez
name: Ruiz, J. M. Martin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The Beam Dump Facility (BDF) is a proposed general-purpose facility at CERN, dedicated to fixed target and beam dump experiments, currently being developed in the context of the Physics Beyond Colliders program. The design of the facility will allow to host different types of experiments, of which SHiP is planned to be the initial one. The core of the facility is a high-density target/dump absorbing the full intensity of the SPS beam and generating a cascade of particles that are detected downstream the target complex. The target and its shielding blocks are positioned inside a vessel, which is planned to be passivized with helium, in order to reduce the activation of the gas surrounding the target and to extend the operational life of materials and equipment. The passivation system that will be in charge of purifying and circulating the helium is a critical component for the operation of the facility. Fluid dynamics simulations have been performed to study the circulation of the helium through the vessel. A detailed design of the helium passivation system and its main components has been developed.
Subsidies and distortions in China’s agriculture: evidence from producer-level data
Creators: name: Huang, Jikun
name: Wang, Xiaobing
name: Zhi, Huayong
name: Huang, Zhurong
name: Rozelle, Scott
name: Huang, Jikun
name: Wang, Xiaobing
name: Zhi, Huayong
name: Huang, Zhurong
name: Rozelle, Scott
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: International Relations/Trade
subject: Political Economy
subject: agriculture
subject: China
subject: distortions
subject: subsidies

description: Concerned about national grain self-sufficiency and rural household incomes, in 2004 China announced that it was planning to reverse its longstanding policy of taxing farm households and instead began to provide them with subsidies. Over the past five years, annual announcements have trumpeted rises in subsidies. Surprisingly, despite the historic turnaround of policy and the likely implication of this subsidy policy to China’s grain economy, there has been no household-level survey-based research that has sought to understand the effect of China’s subsidy programme on household behaviour. Using data from a national survey of more than 1000 households, we examine in detail a number of different dimensions of the subsidy programme. According to the survey-based findings, we have shown that although agricultural subsidies per farm are low, on per unit of cultivated area basis or total amount of budget, the subsidies are high. Almost all producers are receiving them. Subsidies are mostly being given to the land contractor, not the tiller. Most importantly, the subsidies appear to be nondistorting. No matter if we look at descriptive statistics in tables, scatter plots or regression analyses, there is no evidence that grain subsidies are distorting producer decisions in terms of grain area or input use decisions.
Managing complexity in modern farming
Creators: name: Kingwell, Ross S.
name: Kingwell, Ross S.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Farm Management
subject: business profits
subject: complexity
subject: farm modelling
subject: management

description: Modern farming in Australia is no longer simple. Farms are large, multi-enterprise businesses underpinned by expensive capital investments, changing production technologies, volatile markets and social challenges. The complexity of modern broadacre farming leads to the question: what is the nature of the relationship between farm business complexity and farm profitability? This study uses bioeconomic farm modelling and employs eight measures of complexity to examine the profitability and complexity of a wide range of broadacre farming systems in Australia. Rank order correlations between farm profitability and each measure of complexity show inconsistent relationships, although the most profitable farming systems are found to be reasonably complex on several criteria. Among the set of highly profitable systems are found some characterised by less complexity. A commonly acknowledged feature of farm business complexity is the annual workload of the farmer, yet the trade-off between farm profit and this workload is found not to be large. A case is outlined where the farmer’s annual hours worked could be reduced by 9 per cent for a 3 per cent reduction in farm profit. If farmers’ workloads are proving problematic now, and in the future, then agricultural R&D, service delivery and policy development will need to focus more on being highly attractive to increasingly time-poor farm managers.
On the statistical significance of the GZK feature in the spectrum of ultra high energy cosmic rays
Creators: name: De Marco, Daniel
name: Blasi, Pasquale
name: Olinto, Angela V.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The nature of the unknown sources of ultra-high energy cosmic rays can be revealed through the detection of the GZK feature in the cosmic ray spectrum, resulting from the production of pions by ultra-high energy protons scattering off the cosmic microwave background. Here we show that the GZK feature cannot be accurately determined with the small sample of events with energies $\sim 10^{20}$ eV detected thus far by the largest two experiments, AGASA and HiRes. With the help of numerical simulations for the propagation of cosmic rays, we find the error bars around the GZK feature are dominated by fluctuations which leave a determination of the GZK feature unattainable at present. In addition, differing results from AGASA and HiRes suggest the presence of $\sim 30%$ systematic errors that may be due to discrepancies in the relative energy determination of the two experiments. Correcting for these systematics, the two experiments are brought into agreement at energies below $\sim 10^{20}$ eV. After simulating the GZK feature for many realizations and different injection spectra, we determine the best fit injection spectrum required to explain the observed spectra at energies above $10^{18.5}$ eV. We show that the discrepancy between the two experiments at the highest energies has low statistical significance (at the 2 $σ$ level) and that the corrected spectra are best fit by an injection spectrum with spectral index $\sim 2.6$. Our results clearly show the need for much larger experiments such as Auger, EUSO, and OWL, that can increase the number of detected events by 2 orders of magnitude. Only large statistics experiments can finally prove or disprove the existence of the GZK feature in the cosmic ray spectrum.
description: Version accepted for publication in Astroparticle Physics
Thermal treatment of rock phosphate: Phosphorus recovery and production of an alternative binder component
Creators: name: Gatschlhofer, Christoph
name: Krammer, Anna
name: Doschek-Held, Klaus
name: Steindl, Florian Roman
name: Vallazza-Grengg, Cyrill
name: Raupenstrauch, Harald
Publisher: name: Zenodo
Year: 2025
Subjects: Rock phosphate
Phosphorus recovery
Supplementary cementitious material
Waste avoidance
Phosphate ore
Fertilizer
Secondary raw material
Thermal treatment
Thermochemical treatment
Wet granulation
Cement industry

description: Thermal treatment of chemically modified phosphate rock - phosphorus recovery and production of a supplementary cementitious material by waste accumulation avoidance of phosphogypsum.
Piper amalago L.
Creators: name: Flor, Ismael Cividini
name: Flor, Jandira Chachá Ribeiro
name: Furtado, Paulo Sérgio do Nascimento
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Piperales
Piperaceae
Piper
Piper amalago

description: Piper amalago L.
Leaf gall, discoid, green, glabrous and one-chambered (Fig. 3F).
 Previous records: Galls on P. amalago were recorded in Grumari (RJ) (Oliveira & Maia, 2005).
description: Published as part of Flor, Ismael Cividini, Flor, Jandira Chachá Ribeiro & Furtado, Paulo Sérgio do Nascimento, 2018, Insect galls of the Floresta da Cicuta (Volta Redonda, RJ, Brazil), pp. 1-12 in Papéis Avulsos de Zoologia 58 on page 6, DOI: 10.11606/1807-0205/2018.58.24, http://zenodo.org/record/5235062
The Kiselev black hole is neither perfect fluid, nor is it quintessence
Creators: name: Visser, Matt
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The Kiselev black hole spacetime, \[ ds^2 = - \left(1-{2m\over r} - {K\over r^{1+3w}} \right) dt^2 + {dr^2\over1-{2m\over r} - {K\over r^{1+3w}}} + r^2 \,dΩ_2^2, \] is an extremely popular toy model, with over 200 direct and indirect citations as of 2019. Unfortunately, despite repeated assertions to the contrary, this is not a perfect fluid spacetime. The relative pressure anisotropy and average pressure are easily calculated to satisfy \[ Δ= {Δp\over \bar p} = {p_r - p_t \over {1\over3} (p_r+2p_t)} =- {3(1+w)\over 2 w}; \qquad\qquad {\bar p\over ρ} = {{1\over3} (p_r + 2p_t)\over ρ} = w. \] The relative pressure anisotropy $Δ$ is generally a non-zero constant, (unless $w=-1$, corresponding to Schwarzschild-(anti)-de Sitter spacetime). Kiselev's original paper was very careful to point this out in the calculation, but then in the discussion made a somewhat unfortunate choice of terminology which has (with very limited exceptions) been copied into the subsequent literature. Perhaps worse, Kiselev's use of the word "quintessence" does not match the standard usage in the cosmology community, leading to another level of unfortunate and unnecessary confusion. Very few of the subsequent follow-up papers get these points right, so a brief explicit comment is warranted.
description: 12 pages
Is native timber tree intercropping an economically feasible alternative for smallholder farmers in the Philippines?
Creators: name: Martin, Fernando Santos
name: Noordwijk, Meine Van
name: Martin, Fernando Santos
name: Noordwijk, Meine Van
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Environmental Economics and Policy
subject: Farm Management
subject: Labor and Human Capital
subject: agricultural policy
subject: agricultural systems
subject: development economics
subject: economic and risk analysis
subject: productivity analysis

description: Integration of trees on upland farms in the Philippines has been slower than expected and desirable from an environmental perspective. Our economic and risk analysis points to current policies as part of the problem. The study compares three domesticated indigenous timber trees (Shorea contorta V., Pterocarpus indicus J., and Vitex parviflora W.) intercropped with maize against a benchmark of the widely used exotic mahogany (Swietenia macrophylla K.). We used a biophysical simulation model (WaNuLCAS 3.1) to represent interaction between trees and crops for a fundamental level of water, nutrient and light capture as the basis for production functions. External conditions affecting systems profitability were accounted for in the Policy Analysis Matrix (PAM). Elements of risk were introduced through Monte Carlo simulation. Study results revealed that from a farmer’s perspective intercropping systems provide similar (within an uncertainty range of + or ) 10%) returns to monocropping scenarios. When net subsidies and taxes are accounted for, social profitability evaluations favour tree intercropping at high tree densities. The net effect of the current bias in price policies towards food production therefore refrains farmers from making decisions to integrate trees on farms; a decision that is actually in the national interest on economic grounds, even without consideration of positive environmental effects.
MOESM1 of Predictors of poor functional outcomes and mortality in patients with hip fracture: a systematic review
Creators: name: Xu, Bang
name: Yan, Shi
name: Low, Lian
name: Vasanwala, Farhad
name: Sher Low
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Search strategy and included/excluded articles.
3D-2D phase transition in vortex lattice of layered high-temperature superconductors of BSCCO (Bi$_{1.7}$Pb$_{0.3}$Sr$_2$Ca$_2$Cu$_3$O$_4$)
Creators: name: Chigvinadze, J. G.
name: Iashvili, A. A.
name: Machaidze, T. V.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Using the high-sensitive mechanical method of measuring the dissipation processes in superconductors, the 3D-2D phase transition in magnetic field was investigated in the vortex lattice of strongly anisotropic high-temperature superconductors of Bi(2223) system. It was shown that with the increase of external magnetic field the dissipation connected with a motion of vortexes relative to the crystal lattice of a sample, first increases, reaching the maximum and then with a further increase of the magnetic field sharply reduces as a result of pinning enhancement in connection with the transition of three-dimensional vortex system in quasi-two-dimensional "pancake" one.
description: 10 Pages, RevTex, 2 Postscript figures