cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
THE EFFECTS OF TANZANIAN MAIZE EXPORT BANS ON PRODUCERS’ WELFARE AND FOOD SECURITY
Creators: name: Makombe, Wilfred
name: Kropp, Jaclyn D.
name: Makombe, Wilfred
name: Kropp, Jaclyn D.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Crop Production/Industries
subject: Food Security and Poverty
subject: Production Economics
subject: Risk and Uncertainty
subject: export bans
subject: food insecurity
subject: maize
subject: price risk
subject: Tanzania

description: The Tanzanian government has banned the exportation of maize on several occasions since the 1980s. The government argues these bans ensure an adequate domestic food supply and help stabilize consumer prices. While low domestic prices benefit urban consumers, the bans negatively affect farmers’ and traders’ incomes by hindering their access to lucrative prices in international markets. Because the bans are often ad hoc and impromptu, the policy causes market uncertainty which may have long-run implications for future food security and trading opportunities. This study uses cross-sectional household data from 244 randomly selected households collected in October and November of 2015 from the Mufindi district of Tanzania, a key maize producing region, to analyze the policy’s effects on agricultural production decisions, farmers’ responses to price risks generated by the export bans, the implications of the bans on long-run food security, and the effects of the bans on engagement in agricultural activities and investment. While none of the respondents indicate that they stopped producing maize because of the bans, 43 percent indicated that they decreased maize production and started growing other crops. Approximately 63 percent of respondents now produce maize only for household consumption. The survey findings indicate maize farmers are affected by export bans through lower prices and unpredictable markets. The bans caused some farmers to incur negative profits while others were unable to pay inputs suppliers. The bans also reduced investment in maize farming businesses. The majority of respondents indicated that they would reduce acreage allocated to maize production but continue producing maize to meet household consumption needs if the bans are reinstated.
Generalized Proportional Allocation Policies for Robust Control of Dynamical Flow Networks
Creators: name: Nilsson, Gustav
name: Como, Giacomo
Publisher: name: arXiv
Year: 2019
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We study a robust control problem for dynamical flow networks. In the considered dynamical models, traffic flows along the links of a transportation network --modeled as a capacited multigraph-- and queues up at the nodes, whereby control policies determine which incoming queues at a node are to be allocated service simultaneously, within some predetermined scheduling constraints. We first prove a fundamental performance limitation by showing that for a dynamical flow network to be stabilizable by some control policy it is necessary that the exogenous inflows belong to a certain stability region, that is determined by the network topology, link capacities, and scheduling constraints. Then, we introduce a family of distributed controls, referred to as Generalized Proportional Allocation (GPA) policies, and prove that they stabilize a dynamical transportation network whenever the exogenous inflows belong to such stability region. The proposed GPA control policies are decentralized and fully scalable as they rely on local feedback information only. Differently from previously studied maximally stabilizing control strategies, the GPA control policies do not require any global information about the network topology, the exogenous inflows, or the routing, which makes them robust to demand variations and unpredicted changes in the link capacities or the routing decisions. Moreover, the proposed GPA control policies also take into account the overhead time while switching between services. Our theoretical results find one application in the control of urban traffic networks with signalized intersections, where vehicles have to queue up at junctions and the traffic signal controls determine the green light allocation to the different incoming lanes.
Phenoloxidase, an effective bioactivity target for botanical insecticide screening from green walnut husks
Creators: name: Hu, Wenyi
name: Du, Wenxian
name: Bai, Shumin
name: Lv, Sitong
name: Chen, Guang
Publisher: name: Taylor & Francis
Year: 2017
Subjects: subject: Biochemistry
subject: Medicine
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: Developmental Biology
subject: Cancer
subject: Plant Biology

description: Phenoloxidase, a critical enzyme in insects, may serve as a promising target in botanical insecticide development. In an effort to identify active ingredients with insecticidal properties in green walnut husks, juglone and plumbagin were isolated from the chloroform extract using phenoloxidase as bioactive target with the IC50 of 0.247 g/L and 0.256 g/L, respectively. After an artificial diet feeding of the juglone or plumbagin, more than 50% corrected mortality in stomach toxicity form was observed in Pieris rapae Linne larvae and Helicoverpa armigera Hübner larvae at the concentration ≥0.01 g/L, the LC50 of juglone and plumbagin for two kinds of insects were determined as 0.012, 0.011 and 0.022, 0.030 g/L, respectively. This research indicated the significance of PO as bioactive target in pesticides identification and also shed light on the development of phenoloxidase inhibitor as promising botanical insecticides in the future.
Coherent X-ray Scattering Reveals Nanoscale Fluctuations in Hydrated Proteins
Creators: name: Bin, Maddalena
name: Reiser, Mario
name: Filianina, Mariia
name: Berkowicz, Sharon
name: Das, Sudipta
name: Timmermann, Sonja
name: Roseker, Wojciech
name: Bauer, Robert
name: Öström, Jonatan
name: Karina, Aigerim
name: Amann-Winkel, Katrin
name: Ladd-Parada, Marjorie
name: Westermeier, Fabian
name: Sprung, Michael
name: Möller, Johannes
name: Lehmkühler, Felix
name: Gutt, Christian
name: Perakis, Fivos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Hydrated proteins undergo a transition in the deeply supercooled regime, which is attributed to rapid changes in hydration water and protein structural dynamics. Here, we investigate the nanoscale stress relaxation in hydrated lysozyme proteins stimulated and probed by X-ray Photon Correlation Spectroscopy (XPCS). This approach allows us to access the nanoscale dynamic response in the deeply supercooled regime (T = 180 K) which is typically not accessible through equilibrium methods. The relaxation time constants exhibit Arrhenius temperature dependence upon cooling with a minimum in the Kohlrausch-Williams-Watts exponent at T = 227 K. The observed minimum is attributed to an increase in dynamical heterogeneity, which coincides with enhanced fluctuations observed in the two-time correlation functions and a maximum in the dynamic susceptibility quantified by the normalised variance $χ_T$. Our study provides new insights into X-ray stimulated stress relaxation and the underlying mechanisms behind spatio-temporal fluctuations in biological granular materials.
Natural fluorescence emission – an indirect measurement of applied ozone dosages to remove pharmaceuticals in biologically treated wastewater
Creators: name: Spiliotopoulou, Aikaterini
name: Antoniou, Maria G.
name: Andersen, Henrik R.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Plant Biology

description: This study investigated the feasibility of UV-absorbance and fluorescence as monitoring tools for ozone dosages applied to effluents from wastewater treatment plans (WWTPs). Secondary treated effluents from five Swedish WWTPs underwent ozonation (at dosages ranging 0.5–12.0 mg O3/L) in bench-scale experiments. Correlations between ozone dosages and UV-absorbance at 254 and 272 nm were extrapolated with the first one being preferential for the wastewaters used because of its higher signal. UV-absorbance could detect differences in the applied ozone dosage as low as 1 mg/L, making it suitable to monitor effluent ozone treatment processes. Next, fluorescence was investigated at wavelength transitions that have being associated with humic-like fluorescents (Ex249Em450 and Ex335Em450) and protein-like fluorescents (Ex275Em340 and Ex231Em360 and Ex231Em315 and Ex275Em310). The Ex249Em450 transition was found to have the highest signal in all effluents and the best linear regression fitting with the ozone dosages over a wide range. However, low ozone dosages (0.5–3.0 mg O3/L), Ex335Em450 wavelength transition showed a more constant slope among the different domestic wastewater samples with slightly better R2 values than the Ex249Em450 transition. Fluorescence removal via ozonation correlated with the pharmaceutical removal; however, the wellness of fitting was directly dependent on the pharmaceuticals’ reactivity with ozone. Pharmaceuticals with moderate reactivity towards ozone appeared to be linearly correlated with the Ex249Em450 transition, while very reactive or recalcitrant pharmaceuticals had an exponential or a parabolic dependency. This means that fluorescence can potentially be used as a qualitative tool for pharmaceutical removal. Abbreviations: APIs, Active Pharmaceutical Ingredients; DOM, Dissolved organic matter; WWTPs, wastewater treatment plans; NOM, Natural organic matter; UV, Ultra-Violet light; DOC, Dissolved organic carbon.
Cryphaea heteromalla D. Mohr
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Leucodontales
Cryphaeaceae
Cryphaea
Cryphaea heteromalla

description: Cryphaea heteromalla (Hedw.) D.Mohr
RECORDS. — Bescherelle (1882): Philippeville. Bescherelle (1882), Jelenc (1955a): Alger, sur les lentisques, les oliviers; Djebel Thaya; Kabylie du Djurdjura, Akfadou; La Calle. Trabut (1888): sine loco. Corbière (1904): La Calle, fôret de l’oued Mellah. Corbière (1905), Jelenc (1955a, 1966, 1967): Monts de Constantine, djebel Ouach, 1000 m. Jelenc (1955a): Castiglione; Gorges de la Chiffa; Kabylie du Djurdjura, Tifrit; Khodjaberry; Koléa. Jelenc (1956, 1967): Atlas Mitidjien, col des Deux-Bassins, 850 m. Boukhatem et al. (2017): El-Kala National Park, Tonga lake watershed. Frequent.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 71, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Simulating the Complexity of the Dark Matter Sheet I: Numerical Algorithms
Creators: name: Stücker, Jens
name: Hahn, Oliver
name: Angulo, Raul E.
name: White, Simon D. M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: At early times dark matter has a thermal velocity dispersion of unknown amplitude which, for warm dark matter models, can influence the formation of nonlinear structure on observable scales. We propose a new scheme to simulate cosmologies with a small-scale suppression of perturbations that combines two previous methods in a way that avoids the numerical artefacts which have so far prevented either from producing fully reliable results. At low densities and throughout most of the cosmological volume, we represent the dark matter phase-sheet directly using high-accuracy interpolation, thereby avoiding the artificial fragmentation which afflicts particle-based methods in this regime. Such phase-sheet methods are, however, unable to follow the rapidly increasing complexity of the denser regions of dark matter haloes, so for these we switch to an N-body scheme which uses the geodesic deviation equation to track phase-sheet properties local to each particle. In addition, we present a novel high-resolution force calculation scheme based on an oct-tree of cubic force resolution elements which is well suited to approximate the force-field of our combined sheet+particle distribution. Our hybrid simulation scheme enables the first reliable simulations of the internal structure of low-mass haloes in a warm dark matter cosmology.
description: 23 pages, 28 figures
van der Waals heterostructure for photocatalysis: Graphitic carbon nitride and Janus transition-metal dichalcogenides
Creators: name: Arra, Srilatha
name: Babar, Rohit
name: Kabir, Mukul
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Converting solar energy into chemical energy by splitting water is a promising means to generate a sustainable and renewable solution without detrimental environmental impact. The two-dimensional semiconductors serve as potential catalysts in this regard, and here we combine Janus transition-metal dichalcogenides (MoXY, X/Y = S, Se, Te) and graphitic carbon nitride in a van der Waals heterostructure. Within the first-principles calculations, we investigate the electronic, optical and excitonic properties that determine the photocatalytic activity. Due to the internal electric field, the photogenerated electrons and holes are separated in the MoXY layers, and also generates high overpotentials for the redox reactions. The high optical absorptions span throughout the entire visible and near ultraviolet regime in these heterostructure nanocomposites. Further, the lower exciton binding, calculated within the two-dimensional hydrogenic model, indicates efficient charge separation. Enormous tunability of photocatalytic properties in such heterostructures should attract considerable theoretical and experimental attention in future.
description: 8 pages, 4 figures
The "Sign problem" of the 3rd order anomalous Hall effect in topological magnetic materials
Creators: name: Zhang, Xu
name: Sun, Kai
name: Meng, Zi Yang
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The anomalous Hall effect (AHE), which provides a bridgeway between the geometry of quantum wavefunctions and transport measurements, has been a key focus of intensive studies. In addition to the well-studied linear AHE, governed by the electronic Berry curvature, nonlinear AHE originated from higher-order Berry-curvature multipoles has also been observed in recent studies. Inspired by the 3rd order AHE and its room temperature sign switching in kagome antiferromagnet FeSn [S. Sankar, R. Liu, X. Gao, et al, to be published (2023)], we investigate the generic sign structure of Berry-curvature induced 3rd order AHE in topological magnetic material. We find that in contrast to the linear Hall coefficient, whose sign is determined by the broken time-reversal symmetry, the sign of the 3rd order Hall coefficient is dictated by the interplay between time-reversal symmetry breaking, magnetic order, and spin-orbit couplings. Our calculations give a possible solution for the "sign problem" of the 3rd order AHE response in the phase space spanned by the in- and out-of-plane magnetization, the spin-orbital coupling strength and chemical potential. We further propose realistic experiment setups to systematically reveal the sign structure in the 3rd order AHE response via continuously rotating the magnetic field directions.
Two qubits of a W state violate Bell's inequality beyond Cirel'son's bound
Creators: name: Cabello, Adan
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: It is shown that the correlations between two qubits selected from a trio prepared in a W state violate the Clauser-Horne-Shimony-Holt inequality more than the correlations between two qubits in any quantum state. Such a violation beyond Cirel'son's bound is smaller than the one achieved by two qubits selected from a trio in a Greenberger-Horne-Zeilinger state [A. Cabello, Phys. Rev. Lett. 88, 060403 (2002)]. However, it has the advantage that all local observers can know from their own measurements whether their qubits belongs or not to the selected pair.
description: REVTeX4, 5 pages
Piezura Rondani 1866
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Fanniidae
Piezura

description: 441. Piezura Rondani, 1866a: 71, 122.
 ORIGINALLY INCLUDED SPECIES: Piezura pardalina Rondani, 1866.
 TYPE SPECIES: Piezura pardalina Rondani, 1866, by original designation.
 CURRENT STATUS: Valid genus [teste Moores & Savage (2005: 44)].
FAMILY: FANNIIDAE.
 REMARKS: Anthomyza graminicola Zetterstedt, 1846, which was listed as the taxonomically valid name for the type species by Pont (1986a: 42), has since been found by Pont (2002) to represent a different species, so Piezura pardalina Rondani, 1866 is the valid name for the type species.
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on page 146
Confidence Limits of Evolutionary Synthesis Models
Creators: name: Cervino, M.
name: Luridiana, V.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The probabilistic nature of the IMF in stellar systems implies that clusters of the same mass and age do not present the same unique values of their observed parameters. Instead they follow a distribution. We address the study of such distributions in terms of their confidence limits that can be obtained by evolutionary synthesis models. These confidence limits can be understood as the inherent uncertainties of synthesis models. We will compare such confidence limits arising from the discreteness of the number of stars obtained with Monte Carlo simulations with the dispersion resulting from an analytical formalism. We give some examples of the effects on the kinetic energy, V--K, EW(H$β$) and multiwavelength continuum.
description: 4 pages, 4 figures, To appear in "The evolution of Galaxies II: Basic Building Blocks". The model output can be found in http://www.laeff.esa.es/users/mcs/SED
Brane-World and Holography
Creators: name: Shiromizu, Tetsuya
name: Torii, Takashi
name: Ida, Daisuke
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the brane-world in the holographic point of view. Bearing the realistic models in mind, the bulk massless scalar field is introduced. First of all, we find the constraint on the coupling of the scalar fields with the matter(not holographic CFT) on the brane. We show that the traceless part of the energy-momentum tensor of holographic CFT is a part of the bulk Weyl tensor. The trace part which comes from the trace-anomaly is corresponding to the $ρ^2$-term appeared in the generalized FRW equation in the brane-world.
description: 4 pages, minor changes
Determination of the effect of proteoliposome concentration on Aquaporin Z incorporated nanofiltration membranes
Creators: name: Sengur-Tasdemir, Reyhan
name: Pekgenc, Enise
name: Urper-Bayram, Gulsum Melike
name: Tulay Ergon-Can
name: Tutuncu, Havva Esra
name: Zeytuncu, Bihter
name: Gul-Karaguler, Nevin
name: Ates-Genceli, Esra
name: Koyuncu, Ismail
Publisher: name: Taylor & Francis
Year: 2018
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: We report on the fabrication of AqpZ immobilized flat sheet membranes. The effects of interfacial polymerization conditions as well as proteoliposome concentration were evaluated. Commercial AqpZ were used as positive control for cloned AqpZ. Specific permeate flux of membranes at higher proteoliposome concentrations increased up to 25 times higher than thin film composite membranes; however; MgSO4 rejection is lowered almost to 1.5%. FTIR and SEM confirm immobilization of proteoliposomes. Thermal analysis showed that increasing proteoliposome concentration has no positive effect on the incorporation of proteoliposomes into polyamide structures. On the contrary, at lower proteoliposome concentrations, incorporation of proteoliposomes was found better. When combined membrane performances were compared in terms of specific permeate flux; MgSO4 and humic rejection and flux recovery after humic acid filtration, the performance of cloned AqpZ incorporated membranes (having 0.1 mg/mL proteoliposome concentration and polyamide formed with 2 min piperazine reaction time) improved 1.7 times regarding TFC membranes. According to the results, increasing proteoliposome concentration did not improve nanofiltration membrane performance. On the contrary, lower proteoliposome concentrations were found to be more effective in increasing membrane performance.
Exploring the Implications of GHG Reduction Targets for Agriculture in the United Kingdom and Ireland
Creators: name: Lynch, John
name: Donnellan, Trevor
name: Hanrahan, Kevin
name: Lynch, John
name: Donnellan, Trevor
name: Hanrahan, Kevin
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Climate change
subject: agricultural production
subject: agricultural trade

description: The UK and Ireland both have large greenhouse gas (GHG) reduction targets under the EU Effort Sharing Decision (ESD). The ESD covers non-emission trading sector (Non-ETS) emissions, of which agriculture is an important component, representing 44% of the non-ETS emissions for Ireland. In the UK this figure is lower, at 16%, but the composition varies significantly between the constituent countries. Though the reductions targets and means of achieving them differ, reductions in agricultural emissions will be necessary for both the UK and Ireland, and on-going negotiations setting reductions targets for 2030 are likely to result in even stricter limits for emissions from the non ETS sector. This paper examines the implications of achievement of possible 2020 and 2030 GHG reductions targets in the agriculture sector for the UK and Ireland. The paper considers the achievability of the reduction targets based on technical means alone, suggesting that under current carbon budgets the UK aims to make sufficient agricultural emissions reductions, while Ireland will require a reduction in agricultural activity or alternative policy interventions. The implications for food production in the UK and Ireland and associated trade are then assessed.
Ultraviolet properties of noncommutative non-linear sigma-models in two dimensions
Creators: name: Jack, I.
name: Jones, D. R. T.
name: Mohammedi, N.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss the ultra-violet properties of bosonic and supersymmetric noncommutative non-linear sigma-models in two dimensions, both with and without a Wess-Zumino-Witten term.
description: 10 pages, including 1 figure. Plain TeX. Uses Harvmac and epsf. Minor revisions and additional reference. Version to be published in Phys. Lett. B
Theoretical and experimental investigation of the mechanism of the catalytic ozonation process by using a manganese-based catalyst
Creators: name: Snigdha Khuntia
name: Sinha, Manish Kumar
name: Singh, Pragya
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: The mechanisms of heterogeneous catalytic ozonation using a manganese catalyst have been studied in this work. The effects of catalyst, pH and the radical scavengers on the degradation of a model pollutant (i.e. phenol) were evaluated. The contribution of hydroxyl radicals and molecular ozone on the oxidation of phenol was studied for both homogeneous and heterogeneous systems. It was observed that the contribution of hydroxyl radial was 11–44% at pH 3–9. The heterogeneous catalyst may pose a rather complex mechanism as compared to homogenous catalyst. In presence of manganese catalyst, the decomposition ozone is very fast and generates more hydroxyl radicals. This helps the rapid oxidation of phenol at a wide range of pH 3–9. The surface of the catalyst undergoes multiple oxidation reaction and plays the major role in generation of the hydroxyl radicals. A considerable amount of phenol degradation was observed even at low catalyst dose (i.e. 0.5 g L−1). The effect of catalyst on the ozone mass transfer in water was also studied in this work. It was observed that, the overall performance of the phenol degradation is dependent on both chemical reaction due to catalytic action and gas–liquid mass transfer rate.
Radio observations of the circumnuclear ring in NGC6951
Creators: name: Saikia, D. J.
name: Phookun, B.
name: Pedlar, A.
name: Kohno, K.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present sensitive, high-resolution radio observations of the circumnuclear region of the barred spiral galaxy NGC6951. These observations reveal a ring of radio emission with many discrete components and a marginally resolved nuclear component. We compare the radio ring with observations at other wavelengths, and discuss the nature of the compact radio components.
description: 6 pages, 2 figures, 1 table, accepted for publication in Astronomy and Astrophysics
Entanglement detection with classical deep neural networks
Creators: name: Ureña, Julio
name: Sojo, Antonio
name: Bermejo, Juani
name: Manzano, Daniel
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this study, we introduce an autonomous method for addressing the detection and classification of quantum entanglement, a core element of quantum mechanics that has yet to be fully understood. We employ a multi-layer perceptron to effectively identify entanglement in both two- and three-qubit systems. Our technique yields impressive detection results, achieving nearly perfect accuracy for two-qubit systems and over $90\%$ accuracy for three-qubit systems. Additionally, our approach successfully categorizes three-qubit entangled states into distinct groups with a success rate of up to $77\%$. These findings indicate the potential for our method to be applied to larger systems, paving the way for advancements in quantum information processing applications.
description: 12 pages, comments are welcome
Platystila Rondani 1856
Creators: name: O'Hara, James E.
name: Cerretti, Pierfilippo
name: Pape, Thomas
name: Evenhuis, Neal L.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psilidae
Platystila

description: 449. Platystila Rondani, 1856: 122, 220.
 CURRENT STATUS: Unjustified emendation of Platystyla Macquart, 1835; junior synonym of Platystyla Macquart, 1835 (as a subgenus of Loxocera Meigen, 1803) [teste Soós (1984a: 34)].
FAMILY: PSILIDAE.
 REMARKS: Name made available as an emendation by virtue of similar spelling changes in two or more names from “y” to “i” in the same work. Platystyla Macquart, 1835 is currently treated as a subgenus of Loxocera Meigen, 1803 [teste Soós (1984a: 34)].
description: Published as part of O'Hara, James E., Cerretti, Pierfilippo, Pape, Thomas & Evenhuis, Neal L., 2011, 3141, pp. 1-268 in Zootaxa 3141 on page 148
Income growth and malnutrition in Africa: Is there a need for region-specific policies?
Creators: name: Melo, P. C.
name: Abdul-Salam, Yakubu
name: Roberts, D.
name: Colen, L.
name: Mary, S.
name: Gomez Y Paloma, S.
name: Melo, P. C.
name: Abdul-Salam, Yakubu
name: Roberts, D.
name: Colen, L.
name: Mary, S.
name: Gomez Y Paloma, S.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Food demand
subject: malnutrition
subject: income elasticities
subject: meta-analysis
subject: Africa

description: Regional differences in dietary patterns, food supply, and food culture can influence the relationship between income and food demand and thus the impact of income-oriented policies on undernutrition across Africa. In order to test for evidence of regional differences in income elasticities for food demand in Africa, we conduct a meta-analysis using 1,768 food-income elasticity estimates for different categories of food, 324 nutrient-income elasticity estimates, and 103 calorie-income elasticity estimates, extracted from 66 studies covering 48 African countries. One key contribution of this study is that it considers nutrient- and food-income elasticities besides calorie-income elasticities, allowing us to explore issues relating to calorie (i.e. energy) deficiency as well as malnutrition. We find that heterogeneity in the income elasticities can be explained by both differences in primary study characteristics (e.g. data, methodology) and the characteristics of the countries to which the income elasticities refer. The findings for food groups suggest there are significant regional differences in the size of the income elasticities. Some of the regional differences can be related to differences in diet and food supply structures across Africa but there may be other factors captured by the geographic variables (e.g. socio-cultural practices). In terms of country-level characteristics, the demand for calories, nutrients, and food becomes less responsive to changes in income as countries become more urbanised. The effect of economic growth is complex and appears to vary according to the type of income elasticity. The overall food-income elasticity appears to decline with income growth, and the relation holds for cereals, dairy and fruit and vegetables, although it is weaker for the other main food groups. Interestingly, we find a positive relation between a country’s economic growth and the magnitude of the nutrient-income elasticity and that economic growth is associated with increased demand for foods with greater nutrient content but fewer, or no additional, calories. Further country-specific analysis is needed to ensure that income-based policies targeting undernourishment and malnutrition in Africa achieve their goals.
Ctenidium molluscum Mitt.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Hypnales
Hypnaceae
Ctenidium
Ctenidium molluscum

description: Ctenidium molluscum (Hedw.) Mitt.
RECORDS. — Bescherelle (1882): Oued Djer; Sud d‘Oran. Bescherelle (1882), Jelenc (1955a): Édough; Gorges de la Chiffa; Oued Merdja. Trabut (1887a): D‘Oran à Mécheria. Jelenc (1953, 1967): Kabylie des Babor, crête du Tababor, 1950 m. Jelenc (1955a): Atlas de Blida; Crêtes du Djurdjura, Aït Ouaban; Hauts-plateaux oranais. Boukhatem et al. (2017): El-Kala National Park, Tonga lake watershed. Frequent.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 71, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891
Focusing of atoms with strongly confined light potentials
Creators: name: Helseth, Lars Egil
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Focusing of atoms with light potentials is studied. In particular, we consider strongly confined, cylindrical symmetric potential, and demonstrate their applications in both red and blue-detuned focusing of atoms. We also study the influence of aberrations, and find that a resolution of 1 nm should in principle be possible.
description: 23 pages, 9 figures, Submitted to Optics Communications
Enhanced Four-Body Decays of Charged Higgs Bosons into Off-Shell Pseudoscalar Higgs and $W^\pm$ Boson Pairs in a Lepton-Specific 2-Higgs Doublet Model
Creators: name: Moretti, Stefano
name: Song, Muyuan
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the time-honoured decay $H^\pm\to A W^\pm$ but for the first time, we do so for the case of both $A$ and $W^\pm$ being off-shell, therefore computing a $1\to 4$ body decay. We show that the corresponding decay rate not only extends the reach of $H^\pm$ searches to small masses of the latter but also that the results of our implementation differ significantly from the yield of the $1\to3$ body decay over the phase space region in which the latter is normally used. We show the phenomenological relevance of this implementation in the case of the so-called lepton-specific 2-Higgs Doublet Model (2HDM) over the mass region wherein the aforementioned $1\to 4$ body decay can dominate just beyond the top (anti)quark mass. This mass region is accessible in the lepton-specific 2HDM as the Yukawa couplings are such that limits from $b \to s γ$ and $τ\to μν_τ \bar{ν_μ}$ observables on $M_{H^\pm}$ are rather mild. However, we emphasise that similar effects may occur in other 2HDM types, as the $W^\pm H^\mp A$ vertex is 2HDM type independent.
description: 18 pages, 4 figures and 1 table. Updated to match with journal version
Photocatalytic reduction of Cr(VI) using Mg doped WO3 nanoparticles
Creators: name: M.M. Thwala
name: L.N. Dlamini
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Space Science
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences

description: The hydrothermal synthesis method was employed for the fabrication of pristine tungsten trioxide (WO3) and that of varying dopant percentages (1, 3 and 5 % m/m) of magnesium (Mg-WO3). The optical and structural properties of the synthesized materials were characterized using DRS, XRD, FTIR, TEM, BET, FESEM, XPS, PL, and Raman. Rectangular shaped nanostructures were observed through FESEM, wherein confirmed as monoclinic with the aid of XRD, FTIR and Raman analysis. Visualisation of the doping was carried out using HRTEM imagery, which was also confirmed by a slight increase (0.0069 nm) of d spacing. As a consequence, band gaps were diminished and band edge positions were shifted. Band edge position shifts were confirmed via XPS analysis (0.08 eV). The point of zero charge was observed to shift towards positive upon doping at working pH 1 and 3.75 pH was the highest recorded. The rate of recombination was greatly reduced upon doping was observed through PL analysis. This was supported by DFT calculations, in which case the reduction of the rate of recombination was attributed to the introduction of Mg orbital. An improved efficiency was observed via the photo reduction of Cr(VI) metal ion in waste water, in which case, 97 % reduction was attained.
Crediting multi-authored papers to single authors
Creators: name: Tietze, Anna
name: Galam, Serge
name: Hofmann, Philip
Publisher: name: arXiv
Year: 2019
Subjects: subject: Digital Libraries (cs.DL)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: A fair assignment of credit for multi-authored publications is a long-standing issue in scientometrics. In the calculation of the $h$-index, for instance, all co-authors receive equal credit for a given publication, independent of a given author's contribution to the work or of the total number of co-authors. Several attempts have been made to distribute the credit in a more appropriate manner. In a recent paper, Hirsch has suggested a new way of credit assignment that is fundamentally different from the previous ones: All credit for a multi-author paper goes to a single author, the called ``$α$-author'', defined as the person with the highest current $h$-index not the highest $h$-index at the time of the paper's publication) (J. E. Hirsch, Scientometrics 118, 673 (2019)). The collection of papers this author has received credit for as $α$-author is then used to calculate a new index, $h_α$, following the same recipe as for the usual $h$ index. The objective of this new assignment is not a fairer distribution of credit, but rather the determination of an altogether different property, the degree of a person's scientific leadership. We show that given the complex time dependence of $h$ for individual scientists, the approach of using the current $h$ value instead of the historic one is problematic, and we argue that it would be feasible to determine the $α$-author at the time of the paper's publication instead. On the other hand, there are other practical considerations that make the calculation of the proposed $h_α$ very difficult. As an alternative, we explore other ways of crediting papers to a single author in order to test early career achievement or scientific leadership.
description: 6 pages, 4 figures
Additional file 6 of Remodeling of the maternal gut microbiome during pregnancy is shaped by parity
Creators: name: Berry, Alexander S. F.
name: Pierdon, Meghann K.
name: Misic, Ana M.
name: Sullivan, Megan C.
name: O’Brien, Kevin
name: Chen, Ying
name: Murray, Samuel J.
name: Ramharack, Lydia A.
name: Baldassano, Robert N.
name: Parsons, Thomas D.
name: Beiting, Daniel P.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Physiology
subject: Biotechnology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 5: Supplemental Figure 5. The relative abundance of key bacterial taxa changes throughout gestation. A spline-fitting model was performed for the top five most important taxa from the DMM (Fig 1D) and the top five most important taxa from the maturity index (Fig 1B). The relative abundance of all ten taxa changed significantly during gestation (P < 0.01). Throughout gestation, the relative abundance of two taxa, the genus Phascolarctobacterium and the family Rikenellaceae, were significantly associated with parity (P < 0.05).
NFDI4Objects Community Cluster Denkmal-, Maßnahmen- und Schutzflächen / Protected Heritage Sites
Creators: name: Puhl, Andreas
name: Himmelmann, Ulrich
name: Bollacher, Christian
name: Lefeldt, Johanne
name: Hollaender, Julian
Publisher: name: Zenodo
Year: 2025

description: Das Community Cluster hat zum Ziel, die systematische Erschließung, den Zugang zu und den Austausch von (Forschungs-)Daten aus denBereichen des Denkmalschutzes und der Denkmalpflege zu verbessern.
Bias and robustness of eccentricity estimates from radial velocity data
Creators: name: Hara, N. C.
name: Boué, G.
name: Laskar, J.
name: Delisle, J. B.
name: Unger, N.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Applications (stat.AP)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Eccentricity is a parameter of particular interest as it is an informative indicator of the past of planetary systems. It is however not always clear whether the eccentricity fitted on radial velocity data is real or if it is an artefact of an inappropriate modelling. In this work, we address this question in two steps: we first assume that the model used for inference is correct and present interesting features of classical estimators. Secondly, we study whether the eccentricity estimates are to be trusted when the data contain incorrectly modelled signals, such as missed planetary companions, non Gaussian noises, correlated noises with unknown covariance, etc. Our main conclusion is that data analysis via posterior distributions, with a model including a free error term gives reliable results provided two conditions. First, convergence of the numerical methods needs to be ascertained. Secondly, the noise power spectrum should not have a particularly strong peak at the semi period of the planet of interest. As a consequence, it is difficult to determine if the signal of an apparently eccentric planet might be due to another inner companion in 2:1 mean motion resonance. We study the use of Bayes factors to disentangle these cases. Finally, we suggest methods to check if there are hints of an incorrect model in the residuals. We show on simulated data the performance of our methods and comment on the eccentricities of Proxima b and 55 Cnc f.
description: Accepted for publication in MNRAS
Theoretical and Experimental Investigation of the Mechanism of the Catalytic Ozonation Process by using a Manganese Based Catalyst
Creators: name: Snigdha Khuntia
name: Sinha, Manish Kumar
name: Singh, Pragya
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: The mechanisms of heterogeneous catalytic ozonation using a manganese catalyst have been studied in this work. The effects of catalyst, pH and the radical scavengers on the degradation of a model pollutant (i.e. phenol) were evaluated. The contribution of hydroxyl radicals and molecular ozone on the oxidation of phenol was studied for both homogeneous and heterogeneous systems. It was observed that the contribution of hydroxyl radial was 11–44% at pH 3‒9. The heterogeneous catalyst may pose a rather complex mechanism as compared to homogenous catalyst. In presence of manganese catalyst, the decomposition ozone is very fast and generates more hydroxyl radicals. This helps the rapid oxidation of phenol at a wide range of pH 3–9. The surface of the catalyst undergoes multiple oxidation reaction and plays the major role in generation of the hydroxyl radicals. A considerable amount of phenol degradation was observed even at low catalyst dose (i.e. 0.5 g L‒1). The effect of catalyst on the ozone mass transfer in water was also studied in this work. It was observed that, the overall performance of the phenol degradation is dependent on both chemical reaction due to catalytic action and gas-liquid mass transfer rate.
Supplementary document for High-harmonic generation in polycrystalline CdTe nano-films via macroscopic investigations - 6191046.pdf
Creators: name: Yang, Hang
name: Long, Zhe
name: Tian, Kan
name: Lin, Sen
name: He, Linzhen
name: Zhao, Dewei
name: Li, Yang
name: Wu, Han
name: Chen, Ziyu
name: Wu, Lili
Publisher: name: Optica Publishing Group
Year: 2022
Subjects: Uncategorized

description: Supplemental information
On the unitarity of quantum gauge theories on non-commutative spaces
Creators: name: Bassetto, A.
name: Griguolo, L.
name: Nardelli, G.
name: Vian, F.
Publisher: name: arXiv
Year: 2001
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the perturbative unitarity of non-commutative quantum Yang-Mills theories, extending previous investigations on scalar field theories to the gauge case where non-locality mingles with the presence of unphysical states. We concentrate our efforts on two different aspects of the problem. We start by discussing the analytical structure of the vacuum polarization tensor, showing how Cutkoski's rules and positivity of the spectral function are realized when non-commutativity does not affect the temporal coordinate. When instead non-commutativity involves time, we find the presence of extra troublesome singularities on the $p_0^2$-plane that seem to invalidate the perturbative unitarity of the theory. The existence of new tachyonic poles, with respect to the scalar case, is also uncovered. Then we turn our attention to a different unitarity check in the ordinary theories, namely time exponentiation of a Wilson loop. We perform a $O(g^4)$ generalization to the (spatial) non-commutative case of the familiar results in the usual Yang-Mills theory. We show that exponentiation persists at $O(g^4)$ in spite of the presence of Moyal phases reflecting non-commutativity and of the singular infrared behaviour induced by UV/IR mixing.
description: RevTeX, 27 pages, 8 eps-figures; report number and references added; minor changes
Cynodontium bruntonii Bruch & Schimp.
Creators: name: Ros, Rosa M.
name: Olaf, Susana Rams
name: Eloy, Olaf Werner
name: Cerón, Eloy
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Plantae
Bryophyta
Bryopsida
Dicranales
Dicranaceae
Cynodontium
Cynodontium bruntonii

description: Cynodontium bruntonii (Sm.) Bruch & Schimp.
RECORDS. — Feldmann (1947), Jelenc (1955a): Kabylie de Collo, sommet du djebel Goufi, versant Nord, 1000 m. Boukhatem et al. (2017): El-Kala National Park, Tonga lake watershed. Rare.
description: Published as part of Ros, Rosa M., Olaf, Susana Rams, Eloy, Olaf Werner & Cerón, Eloy, 2024, Revisiting the Bryophyte Checklist of Algeria: Exploring Diversity and Distribution, pp. 49-116 in Cryptogamie, Bryologie 20 (5) on page 71, DOI: 10.5252/cryptogamie-bryologie2024v45a5, http://zenodo.org/record/14593891