cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A validity assessment of the Progress out of Poverty Index (PPI) for Rwanda
Creators: name: Desiere, Sam
name: Vellema, Wytse
name: D’Haese, Marijke
name: Desiere, Sam
name: Vellema, Wytse
name: D’Haese, Marijke
Publisher: name: Unknown
Year: 2014
Subjects: subject: Food Security and Poverty
subject: Progress out of Poverty Index (PPI)
subject: expenditure poverty
subject: poverty measurement
subject: impact evaluation
subject: Rwanda

description: Development organisations need easy-to-use and quick-to-implement indicators to quantify poverty when requested to measure program impact. In this paper we assess the validity of the Progress out of Poverty Index (PPI)TM, a country-specific indicator based on ten closed questions on directly observable household characteristics, by its compliance to the SMART criteria. Each response receives a pre-determined score, such that the sum of these scores can be converted into the likelihood the household is living below the poverty line. We focus on the PPI scorecard for Rwanda, which was validated using two national household surveys conducted in 2005/06 and 2010/11. The PPI is Specific, Measurable, Available cost effectively, and Timely available. Yet, its Relevance depends on the way it is used. Although it accurately distinguishes poor from non-poor households, making it a useful reporting tool, its limited sensitivity to changes in poverty status restricts its usefulness for evaluating the impact of development projects.
Minimally Modified Gravity fitting Planck data better than $Λ$CDM
Creators: name: Aoki, Katsuki
name: De Felice, Antonio
name: Mukohyama, Shinji
name: Noui, Karim
name: Oliosi, Michele
name: Pookkillath, Masroor C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the phenomenology of a class of minimally modified gravity theories called $f(\mathcal{H})$ theories, in which the usual general relativistic Hamiltonian constraint is replaced by a free function of it. After reviewing the construction of the theory and a consistent matter coupling, we analyze the dynamics of cosmology at the levels of both background and perturbations, and present a concrete example of the theory with a $3$-parameter family of the function $f$. Finally, we compare this example model to Planck data as well as some later-time probes, showing that such a realization of $f(\mathcal{H})$ theories fits the data significantly better than the standard $Λ$CDM model, in particular by modifying gravity at intermediate redshifts, $z\simeq743$.
description: 21 pages, 10 figures, matches with published version
Price volatility of food staples. The case of millet in Niger
Creators: name: Nasreldin, Osama Ahmed
name: Devesa, Teresa Serra
name: Nasreldin, Osama Ahmed
name: Devesa, Teresa Serra
Publisher: name: Unknown
Year: 2014
Subjects: subject: Demand and Price Analysis
subject: food staple
subject: asymmetric price transmission
subject: statistical copula

description: This article aims to examine dependence between producer and consumer prices for millet markets in Niger. Links between prices considered are assessed by cointegration analysis and statistical copula methods. Results indicate a positive link between producer and consumer prices, which is stronger the closer the markets are. Evidence of asymmetric price behavior is also found.
Astrometric Discovery of GJ 164B
Creators: name: Pravdo, Steven H.
name: Shaklan, Stuart B.
name: Henry, Todd
name: Benedict, G. Fritz
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discovered a low-mass companion to the M-dwarf GJ 164 with the CCD-based imaging system of the Stellar Planet Survey (STEPS) astrometric program. The existence of GJ 164B was confirmed with Hubble Space Telescope NICMOS imaging observations. A high-dispersion spectral observation in V sets a lower limit of delta m> 2.2 mag between the two components of the system. Based upon our parallax value of 0.082 +/- 0.008, we derive the following orbital parameters: P = 2.04 +/- 0.03 y, a = 1.03 +/- 0.03 AU, and Mtotal = 0.265 +/- 0.020 MSun. The component masses are MA = 0.170 +/- 0.015 MSun and MB = 0.095 +/- 0.015 MSun. Based on its mass, colors, and spectral properties, GJ 164B has spectral type M6-8 V.
description: pdf file 14 pages with 6 figs
Predicting outcomes of acute myocardial infarction using administrative data : is depression associated with survival?
Creators: name: Grunau, Gilat Linn
Publisher: name: University of British Columbia
Year: 2010

description: Study objectives: This dissertation investigated three main issues: Determination of the most appropriate risk-adjustment method to control for comorbidity when predicting mortality following acute myocardial infarction (AMI); whether depression following AMI is associated with important prognostic factors such as comorbidities; and whether early- and late-onset incident depression following AMI affect short- and long-term survival and health services use. Methods: Data The British Columbia (BC) Linked Health Database, which includes all hospitalizations, drug prescriptions, physician visits and deaths in BC. Participants A cohort of 4874 individuals aged 66 years and over who had an AMI in 1994 or 1995. Analysis Risk-adjustment methods were compared using the C-statistic; Chisquare and Kruskal-Wallis analyses were used for testing associations between depression and prognostic factors; logistic regression analyses were used to measure the relationship between depression and health services use; Kaplan Meier and Cox regression analyses were used for determining the effect of depression on survival following AMI. Main findings: A risk-adjustment method developed specifically for predicting mortality following AMI (the Ontario AMI predictive rule) was found to be a more appropriate method than more general methods of predicting mortality (e.g., the Charlson Index). Depression following AMI was associated with an increase in comorbidity. Both early- and late-onset incident depression following AMI significantly increased short- and long-term mortality, and is one of the strongest predictors of mortality following AMI in older adults. Depression was not found to be associated with increased health services use. Conclusions and Significance: This was the first study to investigate the impact of depression following AMI using administrative data. Early- and late-onset depression following AMI significantly affects survival, however it does not affect health services use. In contrast to previous research, in this study incident rather than prevalent depression was measured as well as depression occurring up to 5 years following AMI, and not only at the time of or shortly after the index hospitalization. The relationship between depression and comorbidity was investigated which has not been previously done. Future research should focus on determining effective treatments for individuals with depression following AMI.
Additional file 1 of Vegetation and ecosystem carbon recovery following shifting cultivation in Mizoram-Manipur-Kachin rainforest eco-region, Southern Asia
Creators: name: Gogoi, Anudip
name: Sahoo, Uttam Kumar
name: Saikia, Hemanta
Publisher: name: figshare
Year: 2020
Subjects: subject: Ecology
subject: FOS: Biological sciences

description: Additional file 1 Density (D=Number of individual ha−1) and importance value index (IVI) of different species in jhum fallows and old-growth forests. (-) indicates species absence.
The time-scales probed by star formation rate indicators for realistic, bursty star formation histories from the FIRE simulations
Creators: name: Velázquez, José A. Flores
name: Gurvich, Alexander B.
name: Faucher-Giguère, Claude-André
name: Bullock, James S.
name: Starkenburg, Tjitske K.
name: Moreno, Jorge
name: Lazar, Alexandres
name: Mercado, Francisco J.
name: Stern, Jonathan
name: Sparre, Martin
name: Hayward, Christopher C.
name: Wetzel, Andrew
name: El-Badry, Kareem
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Understanding the rate at which stars form is central to studies of galaxy formation. Observationally, the star formation rates (SFRs) of galaxies are measured using the luminosity in different frequency bands, often under the assumption of a time-steady SFR in the recent past. We use star formation histories (SFHs) extracted from cosmological simulations of star-forming galaxies from the FIRE project to analyze the time-scales to which the H$α$ and far-ultraviolet (FUV) continuum SFR indicators are sensitive. In these simulations, the SFRs are highly time variable for all galaxies at high redshift, and continue to be bursty to z=0 in dwarf galaxies. When FIRE SFHs are partitioned into their bursty and time-steady phases, the best-fitting FUV time-scale fluctuates from its ~10 Myr value when the SFR is time-steady to >~100 Myr immediately following particularly extreme bursts of star formation during the bursty phase. On the other hand, the best-fitting averaging time-scale for H$α$ is generally insensitive to the SFR variability in the FIRE simulations and remains ~5 Myr at all times. These time-scales are shorter than the 100 Myr and 10 Myr time-scales sometimes assumed in the literature for FUV and H$α$, respectively, because while the FUV emission persists for stellar populations older than 100 Myr, the time-dependent luminosities are strongly dominated by younger stars. Our results confirm that the ratio of SFRs inferred using H$α$ vs. FUV can be used to probe the burstiness of star formation in galaxies.
description: 14 pages, 10 figures, accepted to MNRAS
Self-vacancies in Gallium Arsenide: an ab initio calculation
Creators: name: El-Mellouhi, Fedwa
name: Mousseau, Normand
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report here a reexamination of the static properties of vacancies in GaAs by means of first-principles density-functional calculations using localized basis sets. Our calculated formation energies yields results that are in good agreement with recent experimental and {\it ab-initio} calculation and provide a complete description of the relaxation geometry and energetic for various charge state of vacancies from both sublattices. Gallium vacancies are stable in the 0, -, -2, -3 charge state, but V_Ga^-3 remains the dominant charge state for intrinsic and n-type GaAs, confirming results from positron annihilation. Interestingly, Arsenic vacancies show two successive negative-U transitions making only +1, -1 and -3 charge states stable, while the intermediate defects are metastable. The second transition (-/-3) brings a resonant bond relaxation for V_As^-3 similar to the one identified for silicon and GaAs divacancies.
description: 14 pages
Additional file 1 of Acyl-lipid desaturases and Vipp1 cooperate in cyanobacteria to produce novel omega-3 PUFA-containing glycolipids
Creators: name: Poole, Leslie B.
name: Parsonage, Derek
name: Sergeant, Susan
name: Miller, Leslie R.
name: Jingyun Lee
name: Furdui, Cristina M.
name: Chilton, Floyd H.
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Additional file 1. Supplemental information reporting bioinformatics, as well as additional fatty acid profile and lipidomics data for all three cyanobacterial strains.
Modelling dairy farming and grazing in the Netherlands: scenarios and results
Creators: name: Helming, John
name: Reijs, Joan
name: Helming, John
name: Reijs, Joan
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agricultural and Food Policy
subject: dairy farms
subject: grazing
subject: technology switch
subject: mathematical programming
subject: policies

description: In this paper we analyse the impact of different grazing policies on number of dairy cows in different grazing categories in 2025 by model simulation in the Netherlands. It can be generally concluded that in the absence of intervention there is a strong tendency towards a decline in grazing on Dutch dairy farms. This tendency is not inevitable and it can be counteracted by policies aiming at higher percentages of grazing on dairy farms. External information about differences in costs between alternative and observed grazing technology is used to calibrate the PMP model. This results into a more flexible substitution between alternative technologies.
Assessment of Bio-Advanced Synthetic Aviation Fuel Hydrocarbons Production from Biorefinery Streams using Furfural and Ketones: A Techno-Economic Analysis
Creators: name: Luzzi, Stefania
name: Dijkstra, Jan Wilco
name: Dussan, Karla
name: Zomeren, Andre van
Publisher: name: Zenodo
Year: 2024
Subjects: Sustainable aviation fuel,
furfural
techno-economic analysis
biorefinery
carbon efficiency

description: This poster was presented at the symposium "Trends and technology needs for biobased fuels and chemicals", organised by the EU H2020 HIGFLY project, in Eindhoven, the Netherlands, on September 20th 2024.

The poster presents process designs for different technological pathways and evaluates the technical and economic aspects for long-term sustainability and commercialization of sustainable aviation fuels.
Magnetic phase transitions in Eu(Co,Ni)2As2 single crystals
Creators: name: Sangeetha, N. S.
name: Pakhira, Santanu
name: Ryan, D. H.
name: Smetana, V.
name: Mudring, A. -V.
name: Johnston, D. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The effects of Ni doping in Eu(Co{1-x}Ni{x})2As2 single crystals with x =0 to 1 grown out of self flux are investigated via crystallographic, electronic transport, magnetic, and thermal measurements. All compositions adopt the body-centered-tetragonal ThCr2Si2 structure with space group I4/mmm. We also find 3-4% of randomly-distributed vacancies on the Co/Ni site. Anisotropic magnetic susceptibility chi(T) data versus temperature T show clear signatures of an antiferromagnetic (AFM) c-axis helix structure associated with the Eu{+2} spins-7/2 for x = 0 and x = 1 as previously reported. The chi(T) data for x = 0.03 and 0.10 suggest an anomalous 2q magnetic structure containing two helix axes along the c axis and in the ab plane, respectively, whereas for x = 0.75 and 0.82, a c-axis helix is inferred as previously found for x = 0 and 1. At intermediate compositions x = 0.2, 0.32, 0.42, 0.54, and 0.65 a magnetic structure with a large ferromagnetic (FM) c-axis component is found from magnetization versus field isotherms, suggested to be an incommensurate FM cone structure associated with the Eu spins, which consists of both AFM and FM components. In addition, the chi(T) and heat capacity data for x = 0.2--0.65 indicate the occurrence of itinerant FM order associated with the Co/Ni atoms with Curie temperatures from 60 K to 25 K, respectively. Electrical resistivity measurements indicate metallic character for all compositions with abrupt increases in slope on cooling below the Eu AFM transition temperatures. In addition to this panoply of magnetic transitions, {151}Eu Mossbauer measurements indicate that ordering of the Eu moments proceeds via an incommensurate sine amplitude-modulated structure with additional transition temperatures associated with this effect.
description: 25 pages, 28 captioned figures, 8 tables, 63 references; accepted for Physical Review Materials
Agricultural extension in eastern DR Congo: Does Gender Matter?
Creators: name: Lambrecht, Isabel
name: Vanlauwe, Bernard
name: Maertens, Miet
name: Lambrecht, Isabel
name: Vanlauwe, Bernard
name: Maertens, Miet
Publisher: name: Unknown
Year: 2014
Subjects: subject: Teaching/Communication/Extension/Profession
subject: gender
subject: agricultural technology adoption
subject: agricultural extension
subject: eastern DR Congo
subject: integrated soil fertility management

description: Agricultural extension programs often evaluate their gender strategy by the proportion of female participants. However, female participation is not necessarily conducive for reaching program objectives. We analyze whether participation of female farmers in an agricultural extension program in South-Kivu increases adoption of three technologies: improved legume varieties, row planting, and mineral fertilizer. Joint male and female program participation leads to the highest adoption rates. Female participation is not conducive for the adoption of capital-intensive technologies while it is for (female) labor-intensive technologies. Participation of female-headed households is more effective for technology adoption than participation of female farmers in male-headed households.
Competing orders in one dimensional spin 3/2 fermionic systems
Creators: name: Wu, Congjun
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Novel competing orders are found in spin 3/2 cold atomic systems in one-dimensional optical traps and lattices. In particular, the quartetting phase, a four-fermion counterpart of Cooper pairing, exists in a large portion of the phase diagram. The transition between the quartetting and singlet Cooper pairing phases is controlled by an Ising symmetry breaking effect in one of the spin channels. The singlet Cooper pairing phase also survives in the purely repulsive interaction regime. In addition, various charge and bond ordered phases are identified at commensurate fillings in lattice systems.
description: 4 pages, 2 figures, revised version
Rynek roślin ozdobnych w świetle akcesji Polski do Unii Europejskiej
Creators: name: Jabłońska, Lilianna
name: Jabłońska, Lilianna
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Crop Production/Industries
subject: International Relations/Trade
subject: ornamental plants
subject: production
subject: foreign trade
subject: / rośliny ozdobne
subject: produkcja
subject: handel zagraniczny

description: Long term analyzes of the ornamental plants’ production and foreign trade in Poland during the last 15 years have been done to show the influence of our integration with UE on Polish floricultural production. It was found that in spite of the high tariffs the import of floricultural products to Poland increased systematically from 1990, but it was not a barrier in the development of domestic production. The estimated acreage of flower cultivation under cover increased from 629 hectares do 880 hectares, acreage of ornamental nursery production from 550 hectares to 4400 hectares hectares and that of bulb production from 500 hectares hectares to 1200 hectares. From the day of our integration with UE (in 2004) instead of increase a decrease of imports was observed as an effect of a partly satisfied demand. The export analyzes showed that Poland is a rising exporter of the ornamental nursery plants and that it is necessary to exploit our advantage for developing this sector. However no significant increase of either the flower production under cover or of bulbs production is expected. / Synopsis. W pracy przedstawiono długookresową analizę zmian w produkcji i handlu zagranicznym roślinami ozdobnymi w Polsce w ciągu ostatnich 15 lat, której celem było wskazanie wpływu integracji z Unią Europejską na rozwój produkcji kwiaciarskiej w Polsce. Badania wykazały, iż pomimo istnienia wysokich barier celnych, od 1990 roku systematycznie wzrastał import produktów kwiaciarskich do Polski, ale nie był on przeszkodą w ponownym rozwoju krajowej produkcji. Powierzchnia osłon z uprawami roślin ozdobnych wzrosła z 629 ha do 880 ha, szkółek ozdobnych z 550 ha do 4 400 ha i reprodukcji cebul kwiatowych z 500 do 1200 ha. Od dnia naszej integracji (w 2004 rok) nie odnotowano wzrostu importu, ale przeciwnie, jego spadek. Był to, podobnie jak wyhamowanie krajowej produkcji, wynik częściowego nasycenia się krajowego rynku. Analiza eksportu wykazała, iż Polska jest rosnącym eksporterem szkółkarskiego materiału ozdobnego i ten eksport należy wykorzystać dla rozwoju sektora. Nie należy natomiast spodziewać się wyraźnego wzrostu produkcji pod osłonami oraz produkcji cebul kwiatowych.
Wpływ rozszerzenia Unii na działalnośc polskich przedsiębiorstw w obszarze rozwoju i opracowywania nowych produktów żywnościowych
Creators: name: Kaczorowska, Joanna
name: Kaczorowska, Joanna
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Industrial Organization
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: innovation activity in food industry
subject: food product development
subject: / działalność innowacyjna przemysłu spożywczego
subject: opracowywanie produktów żywnościowych

description: The EU extension has a positive impact on Polish food sector development and companies’ activity in the area of creation and launching new products. Food market increases quickly and it’s participants introduce innovations that are introduced according to global trends. Indeed, the quality and uniqueness of food assortments will determine in the nearest future the competitiveness of Polish companies and their ability to stay in the market. Currently, the most important difficulties in increasing assortment attractiveness are low investments in R&D and marketing of new products and a limited access to knowledge and experience in creation and development of food products. / Synopsis. Rozszerzenie UE stymulująco działa na rozwój polskiego sektora spożywczego, w tym na działalność przedsiębiorstw w zakresie kreowania i wprowadzania nowych produktów. Rynek żywnościowy zwiększa się szybko a rodzime przedsiębiorstwa wprowadzają innowacje, które podążają za światowymi trendami. W najbliższej przyszłości jakość i unikalność oferty asortymentowej będzie determinowała konkurencyjność polskich przedsiębiorstw i zdolność przetrwania na rynku. Obecnym ograniczeniem zwiększania atrakcyjności wyrobów są niskie inwestycje w zakresie R&D i marketingu nowych produktów, ograniczony dostęp do wiedzy oraz niewielkie doświadczenia w kreowaniu i rozwoju innowacji żywnościowych.
Kwotowanie produkcji mleka – stan obecny oraz perspektywa likwidacji
Creators: name: Kasztelan, Paweł
name: Kasztelan, Paweł
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Livestock Production/Industries
subject: concentration process
subject: milk quota system
subject: effects of EU accession
subject: / koncentracja produkcji
subject: kwotowanie produkcji mleka

description: The aim of this paper was to present the problem of milk quotas in Poland in the context of negotiated production limits, changes in milk production in years 2004-2007 as well as possible consequences of liquidation of production limiting system. On the basis of conducted research the production limits allocated to Poland were evaluated positively. The years 2004-2007 saw strong acceleration in concentration processes in milk production at the level of individual farms, with a simultaneous high level of production concentration in individual regions on the national level. On the basis of conducted analysis the thesis was formulated which claims that the liquidation of milk quota system would have no major significance for Polish milk producers. / Synopsis. Celem opracowania było zaprezentowanie problematyki kwotowania produkcji mleka w Polsce w kontekście wielkości wynegocjowanych limitów produkcyjnych, zmian jakie zaszły w produkcji mleka w latach 2004-2007 oraz konsekwencji likwidacji systemu limitowania produkcji. Na podstawie przeprowadzonych badań dokonano pozytywnej oceny wielkości przyznanych Polsce limitów produkcyjnych. W latach 2004-2007 zaobserwowano silne zdynamizowanie procesów koncentracji produkcji mleka na poziomie gospodarstw rolniczych, przy jednoczesnym wysokim stanie skoncentrowania produkcji na poziomie kraju w poszczególnych regionach. Na podstawie przeprowadzonej analizy wysunięto tezę o braku istotnego znaczenia likwidacji systemu kwotowania produkcji mleka dla polskich rolników.
Quenching and Propagation of Combustion Without Ignition Temperature Cutoff
Creators: name: Zlatos, Andrej
Publisher: name: arXiv
Year: 2004
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We study a reaction-diffusion equation in the cylinder $Ω= \mathbb{R}\times\mathbb{T}^m$, with combustion-type reaction term without ignition temperature cutoff, and in the presence of a periodic flow. We show that if the reaction function decays as a power of $T$ larger than three as $T\to 0$ and the initial datum is small, then the flame is extinguished -- the solution quenches. If, on the other hand, the power of decay is smaller than three or initial datum is large, then quenching does not happen, and the burning region spreads linearly in time. This extends results of Aronson-Weinberger for the no-flow case. We also consider shear flows with large amplitude and show that if the reaction power-law decay is larger than three and the flow has only small plateaux (connected domains where it is constant), then any compactly supported initial datum is quenched when the flow amplitude is large enough (which is not true if the power is smaller than three or in the presence of a large plateau). This extends results of Constantin-Kiselev-Ryzhik for combustion with ignition temperature cutoff. Our work carries over to the case $Ω= \mathbb{R}^n\times\mathbb{T}^m$, when the critical power is $1 + 2/n$, as well as to certain non-periodic flows.
Additional file 1 of Revisited: Therapeutic and toxic blood concentrations of more than 1100 drugs and other xenobiotics
Creators: name: Schulz, Martin
name: Schmoldt, Achim
name: Andresen-Streichert, Hilke
name: Iwersen-Bergmann, Stefanie
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: Additional file 1. Therapeutic (“normal”), toxic, and comatose-fatal blood-plasma concentrations (mg/L, if not stated otherwise) in man. A table containing data for more than 1100 drugs and other xenobiotics in man including annotations and references.
Bethe-Salpeter amplitudes of Upsilons
Creators: name: Larsen, Rasmus
name: Meinel, Stefan
name: Mukherjee, Swagato
name: Petreczky, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Based on lattice non-relativistic QCD (NRQCD) studies we present results for Bethe-Salpeter amplitudes for $Υ(1S)$, $Υ(2S)$ and $Υ(3S)$ in vacuum as well as in quark-gluon plasma. Our study is based on 2+1 flavor $48^3 \times 12$ lattices generated using the Highly Improved Staggered Quark (HISQ) action and with a pion mass of $161$ MeV. At zero temperature the Bethe-Salpeter amplitudes follow the expectations based on non-relativistic potential models. At non-zero temperatures, the interpretation of Bethe-Salpeter amplitudes turns out to be more nuanced, but consistent with our previous lattice QCD study of excited Upsilons in quark-gluon plasma.
description: RevTex, 10pages, 11 figures, minor changes, published version
Potrzeby rolników w zakresie wsparcia ze strony otoczenia instytucjonalnego w warunkach członkostwa Polski w Unii Europejskiej
Creators: name: Kata, Ryszard
name: Kata, Ryszard
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: supporting institutions
subject: small scale farming
subject: transformation of agriculture farms
subject: / instytucje wspierające
subject: rolnictwo rozdrobnione
subject: przekształcenia gospodarstw rolnych

description: The paper discusses Polish farmers' needs in the scope of different forms of institutional support under the circumstances of new opportunities for agriculture after Polish accession to the European Union. Spatial range of investigations covers a macro-region with small scale farming. Analysis concern this forms of support as well as institutions which, in farmers opinion, can effectively contribute to transformation and development of farms. / Synopsis. W opracowaniu dokonano charakterystyki potrzeb rolników w zakresie różnych form wsparcia gospodarstw rolnych ze strony otoczenia instytucjonalnego w nowych uwarunkowaniach dla rolnictwa, jakie wynikają z członkostwa Polski w Unii Europejskiej. Zakres przestrzenny badań obejmuje makroregion rolnictwa rozdrobnionego. Analizie poddano te formy wsparcia oraz instytucje, które zdaniem rolników mogą najskuteczniej przyczynić się do przekształceń i rozwoju gospodarstw.
Semiclassical analysis of the Nonequilibrium Local Polaron
Creators: name: Mitra, A.
name: Aleiner, I.
name: Millis, A. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A resonant level strongly coupled to a local phonon under nonequilibrium conditions is investigated. The nonequilibrium Hartree-Fock approximation is shown to correspond to approximating the steady state density matrix by delta functions at field values to which the local dynamics relaxes in a semiclassical limit. If multiple solutions exist, all are shown to make nonvanishing contributions to physical quantities: multistability does not exist. Nonequilibrium effects are shown to produce decoherence, causing the standard expansions to converge and preventing the formation of a polaron feature in the spectral function. The formalism also applies to the nonequilibrium Kondo problem.
description: 5 pages, 3 figures
Open Access in der SUB: Die neuen Lizenzierungsrichtlinien der SUB
Creators: name: Kaulen, Ina
Publisher: name: Zenodo
Year: 2022
Subjects: Open Access
Openness
SUB Hamburg
Lizenzierung

description: Die SUBHH hat 2016 ihre Open Access Policy veröffentlicht und für Arbeiten ihrer Mitarbeitenden Empfehlungen zur Veröffentlichung im Open Access herausgegeben. 2022, also nach sechs Jahren gelebter OA-Erfahrung, haben wir die Richtlinien einer Überprüfung unterzogen. Neben einer gestrafften Formulierung der Fallgruppen haben wir die sich im fortlaufenden Diskurs der letzten Jahre entwickelten Standards bei der Wahl der Lizenzen umgesetzt. Die Juristin Dr. Ina Kaulen, die für die Arbeitsstelle Open Science der SUB an der Umsetzung beteiligt war, erläutert die neuen Richtlinien. Die vorliegenden Folien wurden während einer digitalen Coffee Lecture präsentiert, die am 26.10.2022 im Rahmen der Aktivitäten der Staats- und Universitätsbibliothek Hamburg organisiert von der Arbeitsstelle Open Science, zur International Open Access Week 2022 veranstaltet wurde.
Ultra-sensitive Light Confinement Driven by Multiple Bound States in the Continuum
Creators: name: Gandhi, Harsh K.
name: Laha, Arnab
name: Ghosh, Somnath
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We propose a unique framework to study the topological properties of an optical bound state in the continuum(BIC). We employ the interactions between proximity resonances undergoing avoided resonance crossing in a specialty optical microcavity. We utilize a continuous system parameter tuning to induce destructive interference between the resonances with cancelling leakage losses. Similar to the physical insight of Friedrich-Wingten type-BIC, we demonstrate the evolution of an ultra-high quality mode. We report the formation of a special-BIC line in the system parameter space connecting locations of multiple quasi-BICs. Aiming to develop a novel scheme to enhance the performance of optical sensing in microcavity, we study the sensitivity of transmission coefficients and quality factor to sense even ultra-small perturbations in the system configuration.
description: 5 pages, 3 figures
title: Did Jambi Really Become a Capital in Sumatra in 1079-1082?: An Examination of Relevant Chinese Sources
Creators: name: Kurz, Johannes
Publisher: name: Fachinformationsdienst (FID) Asien
Year: 2024
Subjects: subject: China
subject: Geschichtsschreibung
subject: Sumatra
subject: Geschichte
subject: 959

description: The present article examines critically the claim made by Oliver W. Wolters in 1966 about a shift of the capital of Sanfoqi (most likely southeastern Sumatra) from Palembang to Jambi between 1079-1082 based on his reading and interpreting of several premodern Chinese sources. A reexamination of the same texts reveals that they, by no means, allow to trace a change of capital, but that instead preconceived ideas affected the interpretation of the source material. Consequently, the idea of a capital of Jambi in Sumatra in the late eleventh century cannot be verified.
Curating a COVID-19 data repository and forecasting county-level death counts in the United States
Creators: name: Altieri, Nick
name: Barter, Rebecca L.
name: Duncan, James
name: Dwivedi, Raaz
name: Kumbier, Karl
name: Li, Xiao
name: Netzorg, Robert
name: Park, Briton
name: Singh, Chandan
name: Tan, Yan Shuo
name: Tang, Tiffany
name: Wang, Yu
name: Zhang, Chao
name: Yu, Bin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applications (stat.AP)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: As the COVID-19 outbreak evolves, accurate forecasting continues to play an extremely important role in informing policy decisions. In this paper, we present our continuous curation of a large data repository containing COVID-19 information from a range of sources. We use this data to develop predictions and corresponding prediction intervals for the short-term trajectory of COVID-19 cumulative death counts at the county-level in the United States up to two weeks ahead. Using data from January 22 to June 20, 2020, we develop and combine multiple forecasts using ensembling techniques, resulting in an ensemble we refer to as Combined Linear and Exponential Predictors (CLEP). Our individual predictors include county-specific exponential and linear predictors, a shared exponential predictor that pools data together across counties, an expanded shared exponential predictor that uses data from neighboring counties, and a demographics-based shared exponential predictor. We use prediction errors from the past five days to assess the uncertainty of our death predictions, resulting in generally-applicable prediction intervals, Maximum (absolute) Error Prediction Intervals (MEPI). MEPI achieves a coverage rate of more than 94% when averaged across counties for predicting cumulative recorded death counts two weeks in the future. Our forecasts are currently being used by the non-profit organization, Response4Life, to determine the medical supply need for individual hospitals and have directly contributed to the distribution of medical supplies across the country. We hope that our forecasts and data repository at https://covidseverity.com can help guide necessary county-specific decision-making and help counties prepare for their continued fight against COVID-19.
description: Authors ordered alphabetically. All authors contributed significantly to this work. All collected data, modeling code, forecasts, and visualizations are updated daily and available at \url{https://github.com/Yu-Group/covid19-severity-prediction}
Williamsrhizoecus Kozar & Konczne Benedicty 2007
Creators: name: Schneider, Scott A.
name: Lapolla, John S.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Pseudococcidae
Williamsrhizoecus

description: Key to species of Williamsrhizoecus based on the adult female
Based on keys in Kozár and Konczné Benedicty (2007) and Caballero & Ramos-Portilla (2018).
1. Circulus present; antenna 5 segmented.................................................................... 2
- Circulus absent; antenna 6 segmented..................................................................... 3
 2. Body setae clavate; anal ring setae flagellate; with 2 circuli................................................ baskyi
 - Body setae flagellate; anal ring setae clavate; with 1 circulus............................................. epicopus
 3. Multilocular disc pores present; body setae clavate, elongate, dilated only at tip; anal ring setae numbering 6–17..... coffeae
 - Multilocular disc pores absent; body setae clavate to falcate, short, stout throughout length; anal ring setae numbering 18.......................................................................................  udzungwensis sp. n.
description: Published as part of Schneider, Scott A. & Lapolla, John S., 2020, Trophobiosis between a new species of Williamsrhizoecus (Hemiptera: Coccomorpha: Rhizoecidae) and Acropyga silvestrii (Hymenoptera: Formicidae) in Tanzania, pp. 283-291 in Zootaxa 4853 (2) on page 288, DOI: 10.11646/zootaxa.4853.2.9, http://zenodo.org/record/4410715
Predicting toxicity by quantum machine learning
Creators: name: Suzuki, Teppei
name: Katouda, Michio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In recent years, parameterized quantum circuits have been regarded as machine learning models within the framework of the hybrid quantum-classical approach. Quantum machine learning (QML) has been applied to binary classification problems and unsupervised learning. However, practical quantum application to nonlinear regression tasks has received considerably less attention. Here, we develop QML models designed for predicting the toxicity of 221 phenols on the basis of quantitative structure activity relationship. The results suggest that our data encoding enhanced by quantum entanglement provided more expressive power than the previous ones, implying that quantum correlation could be beneficial for the feature map representation of classical data. Our QML models performed significantly better than the multiple linear regression method. Furthermore, our simulations indicate that the QML models were comparable to those obtained using radial basis function networks, while improving the generalization performance. The present study implies that QML could be an alternative approach for nonlinear regression tasks such as cheminformatics.
description: main: 4 tables, 6 figures; appendices: 2 tables, 2 figures
Heat transport by turbulent Rayleigh-B'enard Convection in cylindrical cells with aspect ratio one and less
Creators: name: Nikolaenko, Alexei
name: Brown, Eric
name: Funfschilling, Denis
name: Ahlers, Guenter
Publisher: name: arXiv
Year: 2004
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We present high-precision measurements of the Nusselt number N as a function of the Rayleigh number R for cylindrical samples of water (Prandtl number sigma = 4.4) with a diameter D of 49.7 cm and heights L = 116.3, 74.6, and 50.6 cm, as well as for D = 24.8 cm and L = 90.2 cm. For each aspect ratio Gamma = D/L = 0.28, 0.43, 0.67, and 0.98 the data cover a range of a little over a decade of R. The maximum R ~= 10^12 and Nusselt number N ~= 600 were reached for Gamma = 0.43 and D = 49.7. The data were corrected for the influence of the finite conductivity of the top and bottom plates on the heat transport in the fluid to obtain estimates of N_infty for plates with infinite conductivity. The results for N_infty and Gamma >= 0.43 are nearly independent of Gamma. For Gamma = 0.275 N_infty falls about 2.5 % below the other data. For R ~<= 10^11, the effective exponent gamma_eff of N_infty = N_0 R^gamma_eff is about 0.321, larger than those of the Grossmann-Lohse model with its current parameters by about 0.01. For the largest Rayleigh numbers covered for Gamma = 0.98, 0.67, and 0.43, gamma_eff saturates at the asymptotic value gamma = 1/3 of the Grossmann-Lohse model. The data do not reveal any crossover to a Kraichnan regime with gamma_eff > 1/3.
description: 10 pages, 5 figures
Thirty Meter Telescopes and Gravitational Lensing
Creators: name: Carlberg, R. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Diffraction limited 30m class telescopes will play an important role in gravitational lensing studies, coming online in approximately 2015. As imaging telescopes they will complement the ~6m JWST, probing to smaller angular scales in greatly magnified objects near critical lines and for measuring shear of objects below the JWST angular scale, such as luminous super-star clusters at high redshift. The high source density will allow more detailed mass mapping in the weak lensing regime and will be useful in breaking the cosmology-lens potential degeneracy in strong lensing. As multi-object spectrographs 30m telescopes should provide spectra over the entire optical and near infrared spectrum region. The statistical distribution of redshifts needed to invert projected shear measurements and calibration of photometric redshifts for ``tomography'' will be available to flux levels around 5-10 nano-Jansky (approx 29.5 m_AB). However, a one nJy object is expected to require ~500 hours to acquire a redshift, which is most of the dark time in an observing season. Accordingly ``gravitational telescopes'' will be an important tool for probing the very faint high redshift universe, magnifying a few square arc-seconds at a time by factors of 10-1000.
description: invited contribution to IAU 225, Gravitational Lensing, eds G. Meylan and Y. Mellier (CUP)
Two-electron selective coupling in an edge-state based conditional phase shifter
Creators: name: Bellentani, Laura
name: Forghieri, Gaia
name: Bordone, Paolo
name: Bertoni, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the effect of long-range Coulomb interaction on the two-electron scattering in the integer quantum Hall regime at bulk filling factor 2. A parallel version of the Split-Step Fourier method evolves the exact two-particle wave function in a 2D potential background reproducing the effect of depleting gates in a realistic heterostructure, with the charge carrier represented by a localized wavepacket of edge states. We compare the spatial shift induced by Coulomb repulsion in the final two-electron wave function for two indistinguishable electrons initialized in different configurations according to their Landau index, and analyze their bunching probability and the effect of screening. We finally prove the feasibility of the present operating regime as a two-qubit conditional phase shifter to generate entanglement from product states.
description: 10 pages, double column, 7 figures
Collapsed and Extended Cold Dark Matter Haloes in Softened N-Body Gravity
Creators: name: Trott, Cathryn M.
name: Melatos, Andrew
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The statistical mechanics of N cold dark matter (CDM) particles interacting via a softened gravitational potential is reviewed in the microcanonical ensemble and mean-field limit. A phase diagram for the system is computed as a function of the total energy E and gravitational softening length epsilon. For softened systems, two stable phases exist: a collapsed phase, whose radial density profile rho(r) is a central Dirac cusp, and an extended phase, for which rho(r) has a central core and rho(r) ~ r^{-2.2} at large r. It is shown that many N-body simulations of CDM haloes in the literature inadvertently sample the collapsed phase only, even though this phase is unstable when there is zero softening. Consequently, there is no immediate reason to expect agreement between simulated and observed profiles unless the gravitational potential is appreciably softened in nature.
description: 21 pages, 6 figures, accepted for publication in ApJ
Ocena alokacji środków Planu Rozwoju Obszarów Wiejskich przy wykorzystaniu metod optymalizacyjnych
Creators: name: Kiryluk-Dryjska, Ewa
name: Kiryluk-Dryjska, Ewa
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: EU structural funds
subject: allocation
subject: optimization
subject: / środki strukturalne UE
subject: alokacja
subject: optymalizacja

description: The main objective of the research was to assess the allocation of funds in the Rural Development Program in Poland by using optimization methods. A set of simulations using a linear programming model of budget allocation is presented in the paper. Farmers’ and experts’ assessments of the effectiveness of structural programs were used as objective function coefficients for the model. In order to gather these assessments a survey of experts and farmers was done in four selected regions of Poland. The results of simulations of the Polish Rural Development Program budget allocation using diverse coefficient values were compared with the allocation done within that program by the Ministry of Agriculture and Rural Development. / Synopsis. Głównym zamierzeniem badawczym w prezentowanym artykule jest ocena alokacji środków finansowych Planu Rozwoju Obszarów Wiejskich w latach 2004-2006 przy wykorzystaniu metod optymalizacyjnych. Podstawą realizacji celu pracy było przeprowadzenie zestawu symulacji dokonywanych przy wykorzystaniu skonstruowanego w pracy modelu optymalizacyjnego. W opracowanym modelu wykorzystano jako współczynniki funkcji celu oceny rolników i ekspertów dotyczące przewidywanej skuteczności działań strukturalnych, stąd niezbędnym elementem analizy było przeprowadzenie badań ankietowych. Ankiety wśród rolników zostały przeprowadzone w czterech wyodrębnionych w pracy regionach rolniczych Polski. Pytania ankietowe dotyczyły stosunku rolników i ekspertów do działań programów strukturalnych UE. W pracy przeprowadzono symulacje modelowe alokacji środków Planu Rozwoju Obszarów Wiejskich (PROW) przy zmiennych współczynnikach funkcji celu. Wyniki porównano z faktycznie dokonaną przez Ministerstwo Rolnictwa i Rozwoju Wsi alokacją środków finansowych pomiędzy działania PROW 2004-2006.
Panelowe klasyfikacyjne modele upadłości ekonomicznej gospodarstw rolniczych
Creators: name: Kisielińska, Joanna
name: Kisielińska, Joanna
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural Finance
subject: Farm Management
subject: Financial Economics
subject: Research Methods/ Statistical Methods
subject: classification models
subject: qualitative panel models
subject: / modele klasyfikacyjne
subject: jakościowe modele panelowe

description: Four classification models of economic bankruptcy of farms based on panel data are presented in the article. The modelling techniques are linear discrimination function, pooled probit model, random effects probit model and artificial neural network. They give very similar quality of classification, so we can assume that the problem is linear. / Synopsis. W artykule przedstawiono cztery klasyfikacyjne modele prognozowania upadłości ekonomicznej gospodarstw rolniczych zbudowane na podstawie danych panelowych. Były to liniowa funkcja dyskryminacyjna, probitowy model dla danych połączonych, probitowy model z efektami losowymi oraz sieć neuronowa. Zbliżona ich jakość wskazuje na liniowość sformułowanego zadania.