cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Resonant and Scattering States in the $α+α$ System from the Non-Localized Cluster Model
Creators: name: Bai, Dong
name: Ren, Zhongzhou
Publisher: name: arXiv
Year: 2020
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The non-localized cluster model provides a new perspective on nuclear cluster effects and has been applied successfully to study cluster structures in various bound states and quasi-bound states (i.e., long-lived resonant states). In this work, we extend the application scope of the non-localized cluster model further to resonant and scattering states. Following the $R$-matrix theory, the configuration space is divided into the interior and exterior regions by a large channel radius such that the nuclear forces and the antisymmetrization effects become negligible between clusters in the exterior region. In the interior region, the picture of non-localized clustering is realized mathematically by adopting the Brink-Tohsaki-Horiuchi-Schuck-Röpke (Brink-THSR) wave functions as the bases to construct the interior wave functions. The Bloch-Schrödinger equation is used to match the interior wave functions continuously with the asymptotic boundary conditions of the resonant and scattering states at the channel radius, which leads eventually to solutions of the problem. As a first test of the formalism, the low-lying resonant states of ${}^{8}$Be and the phase shifts of the $α+α$ elastic scattering are studied. The numerical results agree well with the experimental data, which shows the validity of the theoretical framework.
description: 27 pages, 6 figures; accepted version
Roles of AMPK in the regulation of cardiac metabolism and cell death
Creators: name: An, Ding
Publisher: name: University of British Columbia
Year: 2010

description: As a metabolic switch, AMP activated protein kinase (AMPK) is known to regulate energy metabolism. Activation of cardiac AMPK has been observed during ischemia, hypoxia, or exercise. It is unclear whether the same alteration occurs following hypoinsulinemia. Using streptozotocin (STZ) induced Type 1 diabetes, we report for the first time that in the acute (4 days) STZ diabetic heart, AMPK, but not PPAR-α, is activated. This activation of AMPK likely increases FA oxidation through phosphorylation and inhibition of acetyl-CoA carboxylase (ACC). In chronic diabetes, augmented plasma lipids and expression of CD36 provide the heart with excess FA. In this condition, PPAR-α, through its regulation of gene expression, likely contributes to high FA oxidation, while AMPK is normalized. In addition to FA oxidation, AMPK is also known to increase FA uptake through activation of CD36. Given that FA released from lipoprotein is suggested to be the main FA source supply to the heart, and lipoprotein lipase (LPL) is the primary enzyme controlling lipoprotein metabolism, of interest to us was the question of whether AMPK also influences FA delivery through LPL. Using fasting and modulators of AMPK, a strong correlation between this metabolic switch and cardiac LPL activity was established. To test whether β-adrenergic agonism could influence cardiac AMPK and heparin-releasable LPL, the β-adrenergic agonist isoproterenol was applied in different models. We found that only during conditions of increased workload and excessive energy expenditure, cardiac AMPK is activated and is highly associated with coronary heparin-releasable LPL activity. Finally, beside its role in the regulation of metabolism, recent studies suggest that AMPK can also modulate cell death. Given that AMPK, through elevation of FA oxidation, reduces lipid accumulation, it is unclear whether this process can protect cardiomyocytes against high fat induced cell apoptosis. Our study demonstrates that low doses of metformin reduce high fat induced cardiac cell death, likely through its effects in decreasing ceramide formation and caspase-3 activity. However, through its role in increasing proton accumulation and lactic acidosis, metformin can induce cardiomyocyte cell damage in a caspase-3 independent manner.
title: Die Notwendigkeit von alternativen Kapitalbeschaffungsmethoden zur Finanzierung von privaten Immobilienprojekten als Folge der internationalen Finanzkrise ab 2007
Creators: name: Mladek, Florian
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Immobilienfinanzierung
subject: Finanzierungsalternativen
subject: Wohnraumbedarf
subject: Immobilienkredit
subject: Crowd Funding

description: Am Anfang der Arbeit stand die Frage ob alternative Finanzierungsinstrumente für die Anforderungen an Wohnraum in Österreich als Folge der Finanzkrise ab 2007 benötigt werden. Um die Frage zu beantworten, wird die Entstehung der Krise mit Fokus auf die Vergabe von Immobilienkrediten analysiert. Als theoretische Grundlage für die Analyse wird die asymmetrische Informationstheorie und hier vor allem der Ansatz von Frederic S. Mishkin zur Analyse von Finanzkrisen herangezogen. Der Ansatz wurde gewählt, weil Mishkin die Kreditvergabe in den Mittelpunkt seiner Untersuchungen stellt. Nachdem gezeigt wurde, dass vor allem die lockere Immobilienkreditvergabe in den USA als Auslöser zu identifizieren ist, wird auf die Folgen der Krise für die Kreditvergabe eingegangen. Mit neuen Eigenkapitalvorschriften für Banken wurde versucht die Ursache bei der Wurzel zu packen und Banken krisensicher zu machen. Als Folge der Maßnahmen und einer gestiegenen allgemeinen Unsicherheit am Finanzmarkt ist die Vergabe von Krediten restriktiver geworden. Dies wird mit unterschiedlichsten Statistiken untermauert werden. Gleichzeitig ist die Nachfrage nach Wohnraum, wiederum stark von der bestehenden Unsicherheit und dem Wunsch nach einer krisensicheren Anlageform gestiegen. Parallel dazu gibt es in Österreich und speziell in Wien aufgrund der demographischen Entwicklung, dem erhöhten Flächenbedarf und der Zuwanderung zusätzlich erhöhte Nachfrage nach Immobilien. Als weiterer kritischer Punkt wird auf die gestiegene Staatsverschuldung und die damit einhergehende Kürzung der Wohnbauförderung eingegangen. All diese Argumente vereint, lassen eine Notwendigkeit von alternativen Finanzierungsformen zumindest plausibilisieren. In der Folge werden bestehende und innovative Alternativen (z.B.: Crowd Funding) erläutert.
Characterization and analysis of azimuthally sensitive correlations
Creators: name: Borghini, Nicolas
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A unified framework for describing the azimuthal dependence of two-particle correlations in heavy-ion collisions is introduced, together with the methods for measuring the corresponding observables. The generalization to azimuthal correlations between more than two particles is presented.
description: 7 pages; talk given at Hot Quarks 2004, Taos (NM), July 18-24,2004
Skyrmion Ground States of Rapidly Rotating Few-Fermion Systems
Creators: name: Palm, Lukas
name: Grusdt, Fabian
name: Preiss, Philipp M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We show that ultracold fermions in an artificial magnetic field open up a new window to the physics of the spinful fractional quantum Hall effect. We numerically study the lowest energy states of strongly interacting few-fermion systems in rapidly rotating optical microtraps. We find that skyrmion-like ground states with locally ferromagnetic, long-range spin textures emerge. To realize such states experimentally, rotating microtraps with higher-order angular momentum components may be used to prepare fermionic particles in a lowest Landau level. We find parameter regimes in which skyrmion-like ground states should be accessible in current experiments and demonstrate an adiabatic pathway for their preparation in a rapidly rotating harmonic trap. The addition of long range interactions will lead to an even richer interplay between spin textures and fractional quantum Hall physics.
description: 15 pages, 5 figures
Charge exchange, from the sky to the laboratory: A method to determine state-selective cross-sections for improved modeling
Creators: name: Betancourt-Martinez, Gabriele L.
name: Cumbee, Renata S.
name: Leutenegger, Maurice A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Charge exchange (CX) is a semi-resonant recombination process that can lead to spectral line emission in the X-ray band. It occurs in nearly any environment where hot plasma and cold gas interact: in the solar system, in comets and planetary atmospheres, and likely astrophysically, in, for example, supernova remnants and galaxy clusters. It also contributes to the soft X-ray background. Accurate spectral modeling of CX is thus critical to properly interpreting our astrophysical observations, but the commonly used CX models in popular spectral fitting packages often rely on scaling equations and may not accurately describe observations or laboratory measurements. This paper introduces a method that can be applied to high-resolution CX spectra to directly extract state-selective CX cross-sections for electron capture, a key parameter for properly simulating the resulting CX spectrum.
description: 6 pages, 6 figures
Marże w przemyśle spożywczym krajów Unii Europejskiej a wahania koniunktury gospodarczej
Creators: name: Kufel, Justyna
name: Kufel, Justyna
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Demand and Price Analysis
subject: International Relations/Trade
subject: Research Methods/ Statistical Methods
subject: mark-ups
subject: price-cost margins
subject: business cycle
subject: food sector in the European Union
subject: / marże cenowo-kosztowe
subject: cykl koniunkturalny
subject: przemysł spożywczy w UE

description: Mark-up plays nowadays the major role in plenty of DSGE models, and defining its cyclicality is one of the most demanding challenges in macroeconomics. The aim of the article was to measure price-cost margins (PCM) used as a proxy for mark-ups and their variation in the EU countries food sectors, as well as to find out the character of the relationship between the business cycle, measured at the national and sectorial levels, and PCM in the period 1995-2010 using panel regression. It was found, that in the analyzed period the market power in the food sector wasn’t so big (0,12) and that the variation of PCM between countries (0,31) was higher than between years (0,05). PCM proved to be procyclical regarding sectorial business cycle and antycyclical regarding macroeconomic business cycle. / Synopsis. Marża gra obecnie kluczową rolę w wielu modelach makroekonomicznych, a określenie jej cykliczności jest jedynym z bardziej wymagających wyzwań stojących przed makroekonomią. Celem artykułu było oszacowanie wysokości i zmienności marż (przybliżonych zmienną PCM) w przemyśle spożywczym krajów Unii Europejskiej w latach 1995-2010, jak również poszukiwanie zależności między poziomem marż w przemyśle spożywczym państw Unii Europejskiej a koniunkturą makroekonomiczną i sektorową w tym okresie z zastosowaniem regresji panelowej. Okazało się, że w analizowanym okresie przemysł spożywczy nie dysponował znaczną siłą rynkową (0,12), natomiast zmienność między krajami (0,31) była wyższa niż w czasie (0,05). Wyniki wskazują na procykliczność marż w stosunku do cyklu sektorowego i ich antycykliczność w stosunku do cyklu makroekonomicznego.
Setting the Stage: Structures from Gaussian Random Fields
Creators: name: Sawala, Till
name: Jenkins, Adrian
name: McAlpine, Stuart
name: Jasche, Jens
name: Lavaux, Guilhem
name: Johansson, Peter H.
name: Frenk, Carlos S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We study structure formation in a set of cosmological simulations to uncover the scales in the initial density field that gave rise to the formation of present-day structures. Our simulations share a common primordial power spectrum (here Lambda-CDM), but the introduction of hierarchical variations of the phase information allows us to systematically study the scales that determine the formation of structure at later times. We consider the variance in z=0 statistics such as the matter power spectrum and halo mass function. We also define a criterion for the existence of individual haloes across simulations, and determine what scales in the initial density field contain sufficient information for the non-linear formation of unique haloes. We study how the characteristics of individual haloes such as the mass and concentration, as well as the position and velocity, are affected by variations on different scales, and give scaling relations for haloes of different mass. Finally, we use the example of a cluster-mass halo to show how our hierarchical parametrisation of the initial density field can be used to create variants of particular objects. With properties such as mass, concentration, kinematics and substructure of haloes set on distinct and well-determined scales, and its unique ability to introduce variations localised in real space, our method is a powerful tool to study structure formation in cosmological simulations.
description: 18 pages, 22 figures, submitted to MNRAS
The impact of churn on client value in health insurance, evaluation using a random forest under various censoring mechanisms
Creators: name: Gerber, Guillaume
name: Yohann Le Faou
name: Lopez, Olivier
name: Trupin, Michael
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: In the insurance broker market, commissions received by brokers are closely related to so-called \customer value”: the longer a policyholder keeps their contract, the more profit there is for the company and therefore the broker. Hence, predicting the time at which a potential policyholder will surrender their contract is essential in order to optimize a commercial process and define a prospect scoring. In this paper, we propose a weighted random forest model to address this problem. Our model is designed to compensate for the impact of random censoring. We investigate different types of assumptions on the censoring, studying both the cases where it is independent or not from the covariates. We compare our approach with other standard methods which apply in our setting, using simulated and real data analysis. We show that our approach is very competitive in terms of quadratic error in addressing the given problem.
A Parameter Study of Type II Supernova Light Curves Using 6 M_odot He Cores
Creators: name: Young, Timothy R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Results of numerical calculations of Type II supernova light curves are presented. The model progenitor stars have 6 $M{_\odot}$ cores and various envelopes, originating from a numerically evolved 20 $M{_\odot}$ star. Five parameters that affect the light curves are examined: the ejected mass, the progenitor radius, the explosion energy, the $^{56}$Ni mass, and the extent of $^{56}$Ni mixing. The following affects have been found: 1) the larger the progenitor radius the brighter the early--time light curve, with little affect on the late--time light curve, 2) the larger the envelope mass the fainter the early light curve and the flatter the slope of the late light curve, 3) the larger the explosion energy the brighter the early light curve and the steeper the slope of the late light curve, 4) the larger the $^{56}$Ni mass the brighter the overall light curve after 20 to 50 days, with no affect on the early light curve, 5) the more extensive the $^{56}$Ni mixing the brighter the early light curve and the steeper the late light curve. The primary parameters affecting the light curve shape are the progenitor radius and the ejected mass. The secondary parameters are the explosion energy, $^{56}$Ni mass and $^{56}$Ni mixing. I find that while in principle the general shape and absolute magnitude of a light curve indicate a unique set of parameters, in practice it is difficult to avoid some ambiguity in the parameters. I find that the nickel--powered diffusion wave and the recombination of helium produce a prominent secondary peak in all our calculations. The feature is less prominent when compositional mixing, both $^{56}$Ni mixing and mixing between the hydrogen and helium layers, occurs. The model photospheric temperatures and velocities are presented, for comparison to observation.
description: 39 pages, 15 figures. Astrophysical Journal (Accepted, Dec. 20, 2004)
Spalangia endius Walker 1839
Creators: name: Shimbori, Eduardo Mitio
name: Costa, Valmir Antonio
name: Zucchi, Roberto Antonio
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Spalangia
Spalangia endius

description: Spalangia endius Walker, 1839
(Figs 9, 12)
 Diagnosis. Head and pronotal collar with sparse and circular setiferous punctures, interstices smooth and shiny; gena with malar sulcus present; posterior half of mesoscutal median lobe punctate-rugose medially, with punctures varying in size and shape (Bouček 1963; Gibson 2009).
 Biology. Recorded from about 50 species in nine families of Diptera (Noyes 2019), developing as solitary ectoparasitoid idiobionts on pupae. Spalangia endius is also recorded as a hyperparasitoid on Lepidoptera, probably via Tachinidae (Diptera) (Gibson 2009). Tephritid hosts in Brazil include A. alveatoides (Nicácio et al. 2011), A. fraterculus, A. obliqua (Aguiar-Menezes & Menezes 2002; Uchôa et al. 2003) and A. sororcula (Aguiar-Menezes et al. 2003).
 Taxonomy. The genus Spalangia was revised by Gibson (2009) and recognition of species using the illustrated identification key is simple and straightforward. The three species listed here, are discussed in Gibson’s revision (2009), which should be consulted for further information and identification of species of Spalangia.
 Biological control. Species of Spalangia are the most commonly used biological control agents for filth flies (Diptera: Muscidae) on animal manure in several countries (e.g. Tormos et al. 2018 and references within), where companies mass-rear and sell parasitoids for augmentative biological control, with variable success (Machtinger et al. 2015a; 2015b). These are polyphagous species, not restricted to one dipteran family, and the same species are known to use Tephritidae and Muscidae species as hosts (Gibson 2009), with no observed preference for one family over the other (Tormos et al. 2018). Use of Spalangia spp. in biological control of tephritids is still restricted, and considered inefficient (Peña et al. 2002)
 Distribution. This is a cosmopolitan species, found in all biogeographical regions.
 Distribution in Brazil (associated with Tephritidae). MG (Silva et al. 2003), MS (Uchôa et al. 2003, Nicácio et al. 2011) and RJ (Aguiar-Menezes & Menezes 2002; Aguiar-Menezes et al. 2003)
description: Published as part of Shimbori, Eduardo Mitio, Costa, Valmir Antonio & Zucchi, Roberto Antonio, 2020, Annotated checklist and illustrated key to parasitoids (Hymenoptera: Diapriidae Eulophidae and Pteromalidae) of fruit flies (Diptera, Tephritidae) in Brazil, pp. 53-70 in Zootaxa 4858 (1) on pages 62-64, DOI: 10.11646/zootaxa.4858.1.3, http://zenodo.org/record/4411551
Hints for an extension of the early exercise premium formula for American options
Creators: name: Bermin, Hans-Peter
name: Kohatsu-Higa, Arturo
name: Perello, Josep
Publisher: name: arXiv
Year: 2004
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Physics and Society (physics.soc-ph)
subject: Pricing of Securities (q-fin.PR)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: Characterization of the American put option price is still an open issue. From the beginning of the nineties there exists a non-closed formula for this price but nontrivial numerical computations are required to solve it. Strong efforts have been done to propose methods more and more computationally efficient but most of them have few mathematical ground as to ascertain why these methods work well and how important is to consider a good approximation to the boundary or to the smooth pasting condition. We perform an extension of the American put price aiming to catch weaknesses of the numerical methods given in the literature.
description: First Bonzenfreies Colloquium on Market Dynamics and Quantitative Economics. Alessandria, 9-10 September 2004. 7 pages, 4 figures
Rynek gruntów rolnych w Polsce na tle rynku europejskiego
Creators: name: Laskowska, Elwira
name: Laskowska, Elwira
Publisher: name: Unknown
Year: 2014
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: International Relations/Trade
subject: Land Economics/Use
subject: real estate
subject: agricultural land
subject: european market
subject: price of land
subject: / rynek nieruchomości
subject: grunt rolny
subject: rynek europejski
subject: ceny ziemi

description: The aim of the study was to determine the specificity of the agricultural land market in Poland compared to the European market in terms of what stimulates and what restrict its development. The results of the analysis confirmed that the Polish accession to the European Union is one of the main drivers of change in the agricultural land market, consisting in the growth rate of the market and land prices. This phenomenon is also observed in the other countries belonging to the so- called "new" in the structure of the EU. Factors that could and still can contribute to increasing the value of agricultural land in Poland also include, among others, the possibility of a non-agricultural use of land, a trend toward leveling the land prices in Poland and Western European countries, a limited supply of land, or the abolition of May 2016 restrictions on the acquisition of land by foreigners. / Synopsis. Celem pracy była próba określenia specyfiki rynku gruntów rolnych w Polsce na tle rynku europejskiego w zakresie czynników stymulujących i ograniczających jego rozwój. Wyniki analiz potwierdziły, że akcesję Polski do Unii Europejskiej należy zaliczyć do głównych katalizatorów zmian na rynku gruntów rolnych, polegających na wzroście dynamiki obrotu oraz cen ziemi. Zjawisko to notowane jest także w pozostałych państwach, zaliczanych do tzw. „nowych” w strukturze UE. Do czynników, które mogły i nadal mogą wpływać na wzrost wartości ziemi rolnej w Polsce, można też zaliczyć m.in. możliwość innego niż rolnicze wykorzystania gruntów, tendencję w kierunku zrównywania się cen ziemi w Polsce i krajach Europy Zachodniej, ograniczoną podaż gruntów, czy zniesienie od maja 2016 r. ograniczenia w nabywaniu ziemi przez cudzoziemców.
Non-Markovian Majority-Vote model
Creators: name: Chen, Hanshuang
name: Wang, Shuang
name: Shen, Chuansheng
name: Zhang, Haifeng
name: Bianconi, Ginestra
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Non-Markovian dynamics pervades human activity and social networks and it induces memory effects and burstiness in a wide range of processes including inter-event time distributions, duration of interactions in temporal networks and human mobility. Here we propose a non-Markovian Majority-Vote model (NMMV) that introduces non-Markovian effects in the standard (Markovian) Majority-Vote model (SMV). The SMV model is one of the simplest two-state stochastic models for studying opinion dynamics, and displays a continuous order-disorder phase transition at a critical noise. In the NMMV model we assume that the probability that an agent changes state is not only dependent on the majority state of his neighbors but it also depends on his {\em age}, i.e. how long the agent has been in his current state. The NMMV model has two regimes: the aging regime implies that the probability that an agent changes state is decreasing with his age, while in the anti-aging regime the probability that an agent changes state is increasing with his age. Interestingly, we find that the critical noise at which we observe the order-disorder phase transition is a non-monotonic function of the rate $β$ of the aging (anti-aging) process. In particular the critical noise in the aging regime displays a maximum as a function of $β$ while in the anti-aging regime displays a minimum. This implies that the aging/anti-aging dynamics can retard/anticipate the transition and that there is an optimal rate $β$ for maximally perturbing the value of the critical noise. The analytical results obtained in the framework of the heterogeneous mean-field approach are validated by extensive numerical simulations on a large variety of network topologies.
description: 11 pages and 6figures
Spalangia gemina Boucek 1963
Creators: name: Shimbori, Eduardo Mitio
name: Costa, Valmir Antonio
name: Zucchi, Roberto Antonio
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Spalangia
Spalangia gemina

description: Spalangia gemina Bouček, 1963
(Figs 10, 13)
 Diagnosis. Head with dense circular setiferous punctures; gena with malar space distinctly shorter than eye height and malar sulcus absent; pronotal collar coarsely reticulate-rugose, except for a nearly triangular area close to the crenulate cross-line posteriorly; mesoscutal median lobe with median longitudinal carina separating two groups of irregular foveae posteriorly (Bouček 1963; Gibson 2009).
 Taxonomy. See S. endius.
 Biology. Most of the host records of this parasitoid are from tephritids. There are also reports of this species as hyperparasitoid, using tachinids (Diptera) as primary hosts, all in Lepidoptera. Other hosts include Musca domestica L. and species of Drosophila. Spalangia gemina has apparently a narrower host range than S. endius, and experiments showed that some hosts, including Drosophila virillis Sturtevant and A. ludens, are not parasitized by S. gemina (Sivinski et al. 1998). Tephritid hosts in Brazil include A. obliqua (Uchôa et al. 2003) and Ce. capitata (Silva et al. 2020).
 Biological control. See S. endius.
 Distribution. Mainly tropical, but reaching temperate zones of the New and Old World, and Australasia.
 Distribution in Brazil (associated with Tephritidae). MS (Uchôa et al. 2003) and RN (Silva et al. 2020).
description: Published as part of Shimbori, Eduardo Mitio, Costa, Valmir Antonio & Zucchi, Roberto Antonio, 2020, Annotated checklist and illustrated key to parasitoids (Hymenoptera: Diapriidae Eulophidae and Pteromalidae) of fruit flies (Diptera, Tephritidae) in Brazil, pp. 53-70 in Zootaxa 4858 (1) on page 64, DOI: 10.11646/zootaxa.4858.1.3, http://zenodo.org/record/4411551
Diagnostic strategies and clinical management of lipodystrophy
Creators: name: Foss-Freitas, Maria C.
name: Baris Akinci
name: Yingying Luo
name: Stratton, Andra
name: Oral, Elif A.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences

description: Introduction: Lipodystrophy is a heterogeneous group of rare diseases characterized by various degrees of fat loss which leads to serious morbidity due to metabolic abnormalities associated with insulin resistance and subtype-specific clinical features associated with underlying molecular etiology. Areas covered: This article aims to help physicians address challenges in diagnosing and managing lipodystrophy. We systematically reviewed the literature on PubMed and Google Scholar databases to summarize the current knowledge in lipodystrophy management. Expert opinion: Adipose tissue is a highly active endocrine organ that regulates metabolic homeostasis in the human body through a comprehensive communication network with other organ systems such as the central nervous system, liver, digestive system, and the immune system. The adipose tissue is capable of producing and secreting numerous factors with important endocrine functions such as leptin that regulates energy homeostasis. Recent developments in the field have helped to solve some of the mysteries behind lipodystrophy that allowed us to get a better understanding of adipocyte function and differentiation. From a clinical standpoint, physicians who suspect lipodystrophy should distinguish the disease from several others that may present with similar clinical features. It is also important for physicians to carefully interpret clinical features, laboratory, and imaging results before moving to more sophisticated tests and making decisions about therapy.
Testing The Lamp-Post and Wind Reverberation Models with XMM-Newton Observations of NGC 5506
Creators: name: Zoghbi, Abderahmen
name: Kalli, Sihem
name: Miller, Jon M
name: Mizumoto, Misaki
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The lamp-post geometry is often used to model X-ray data of accreting black holes. Despite its simple assumptions, it has proven to be powerful in inferring fundamental black hole properties such as the spin. Early results of X-ray reverberations showed support for such a simple picture, though wind-reverberation models have also been shown to explain the observed delays. Here, we analyze new and old XMM-Newton observations of the variable Seyfert-1 galaxy NGC 5506 to test these models. The source shows an emission line feature around 6.7 keV that is delayed relative to harder and softer energy bands. The spectral feature can be modeled with either a weakly relativistic disk line or by scattering in distant material. By modeling both the spectral and timing signatures, we find that the reflection fraction needed to explain the lags is larger than observed in the time-averaged spectrum, ruling out both a static lamp-post and simple wind reverberation models.
description: Accepted for publication in ApJ. Analysis codes and data are available on https://github.com/zoghbi-a/Testing-Reverberation-In-NGC5506
3-D numerical simulations of rotating jets: The case of the DG Tau microjet
Creators: name: Cerqueira, Adriano H.
name: Pino, Elisabete M. de Gouveia Dal
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We here present results of three-dimensional Smoothed Particle hydro and magnetohydrodynamics simulations of rotating jets, also including the effects of radiative cooling, precession and velocity variability. Using initial conditions and parameters which are particularly suitable for the DG Tau microjet, we have been able to approximately reproduce its complex knotty morphology and kinematics. We have also obtained radial velocity maps which are in good agreement with the data obtained by Bacciotti et al., thus indicating that their interpretation that the DG Tau microjet is rotating is correct. Finally, we have found that a magnetic field of the order of ~ 0.5 mG is sufficient to collimate the jet against the lateral expansion that is caused by the centrifugal forces.
description: 4 pages, 3 figures; Accepted for publication in A&A (letters). The high resolution figures are avilable upon request
Time irreversibility and amplitude irreversibility measures for nonequilibrium processes
Creators: name: Yao, Wenpo
name: Wang, Jun
name: Perc, Matjaz
name: Yao, Wenli
name: Dai, Jiafei
name: Guo, Daqing
name: Yao, Dezhong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Time irreversibility, which characterizes nonequilibrium processes, can be measured based on the probabilistic differences between symmetric vectors. To simplify the quantification of time irreversibility, symmetric permutations instead of symmetric vectors have been employed in some studies. However, although effective in practical applications, this approach is conceptually incorrect. Time irreversibility should be measured based on the permutations of symmetric vectors rather than symmetric permutations, whereas symmetric permutations can instead be employed to determine the quantitative amplitude irreversibility -- a novel parameter proposed in this paper for nonequilibrium calculated by means of the probabilistic difference in amplitude fluctuations. Through theoretical and experimental analyses, we highlight the strong similarities and close associations between the time irreversibility and amplitude irreversibility measures. Our paper clarifies the connections of and the differences between the two types of permutation-based parameters for quantitative nonequilibrium, and by doing so, we bridge the concepts of amplitude irreversibility and time irreversibility and broaden the selection of quantitative tools for studying nonequilibrium processes in complex systems.
description: 16 pages, 6 figures
title: Συγκόλληση ελασμάτων από ανοξείδωτο ωστενιτικό χάλυβα 316L με την μέθοδο fcaw και χρήση αυτοματοποιημένης ρομποτικής διάταξης
titleType: AlternativeTitle
Creators: name: Koyrkoulos, Marios A.
Publisher: name: National Technological University of Athens
Year: 2011
Subjects: Συγκόλληση
Ελάσματα
Ανοξείδωτος ωστενιτικός χάλυβας
Welding
Plates
Austenitc stainless steel

description: 147 σ.
description: Συγκόλληση ελασμάτων πάχους 4 χιλιοστων με την μέθοδο FCAW και χρήση αυτοματοποιημένης συγκολλητικής διάταξης
description: Welding of thin plates 4mm , Austenitic stainless steel 316L,FLUX CORE ARC WELDING
HOUSEHOLDS’ VULNERABILITY TO POVERTY IN IBADAN METROPOLIS, OYO STATE, NIGERIA
Creators: name: Adepoju, Abimbola O.
name: Okunmadewa, Folusho Y.
name: Adepoju, Abimbola O.
name: Okunmadewa, Folusho Y.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Consumer/Household Economics
subject: Food Security and Poverty
subject: Vulnerability
subject: Poverty
subject: Oyo State
subject: Nigeria

description: This paper empirically assessed vulnerability to poverty at the household level using a two-period panel data set obtained from 150 households sampled from two local government areas within Ibadan Metropolis. Data were analysed using descriptive statistics, poverty indices and probit regression analysis. Analysis of the socio-economic characteristics and their relationship with vulnerability to poverty revealed that large-sized households headed by men who were old, widowed, self-employed, uneducated or who had only primary school education and no access to any form of credit, were more vulnerable than other households. The estimated probit regression model showed that marital status and tertiary education status of respondents reduced vulnerability to poverty while primary education status and household size enhanced households vulnerability to poverty.
Determinants of Rice Farmer’s Access to Credit in Niger State, Nigeria
Creators: name: Odu, O. O.
name: Okoruwa, Victor O.
name: Adenegan, Kemisola O.
name: Olajide, A. O.
name: Odu, O. O.
name: Okoruwa, Victor O.
name: Adenegan, Kemisola O.
name: Olajide, A. O.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural Finance
subject: Consumer/Household Economics
subject: Production Economics
subject: Access to credit
subject: Determinants
subject: Rice farmer
subject: Niger State

description: The performance of the agricultural sector has been relatively poor considering the attitude of existing financial institutions to the support of the sector. Informal credit supply is limited while formal credit supply is often inaccessible to smallholder farmers. Therefore, borrower’s characteristics that determine access to formal and informal sources of credit were examined. Data collected by the Africa Rice Centre from Niger State in 2009 were used. Multi-stage sampling technique was used to obtain a sample of 373 out of 470 rice farmers from whom information was collected. Descriptive statistics and multinomial logit model were then used to analyse the data. Results revealed that agricultural credit programmes and village residents in the formal and informal credit sectors respectively were the accessible sources of credit. The results also revealed that access to formal credit was significantly increased by experience in rice farming, expenses on fertilizer input and rice income while access to informal credit was significantly increased by gender, duration of village residency, experience in rice farming and expenses on fertilizer input. It is recommended that a suitable credit support programme for access to formal credit should be introduced.
Full-star Type Ia supernova explosion models
Creators: name: Roepke, F. K.
name: Hillebrandt, W.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present full-star simulations of Type Ia supernova explosions on the basis of the standard Chandrasekhar-mass deflagration model. Most simulations so far considered only one spatial octant and assumed mirror symmetry to the other octants. Two full-star models are evolved to homologous expansion and compared with previous single-octant simulations. Therefrom we analyze the effect of abolishing the artificial symmetry constraint on the evolution of the flame surface. It turns out that the development of asymmetries depends on the chosen initial flame configuration. Such asymmetries of the explosion process could possibly contribute to the observed polarization of some Type Ia supernova spectra.
description: 11 pages, 10 figures, resolution of some figures reduced to meet astro-ph file size restriction, submitted to A&A
Remittances and Household Expenditure in Rural Nigeria
Creators: name: Olowa, Olatomide W.
name: Awoyemi, Timothy T.
name: Olowa, Olatomide W.
name: Awoyemi, Timothy T.
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Remittances
subject: Household expenditures
subject: Consumption and investment goods
subject: Marginal spending
subject: Rural Nigeria

description: This paper examines the relationship between remittances and household expenditures in rural Nigeria by using the 2004 living standard survey to analyse how the receipt of domestic remittances (from within Nigeria) and foreign remittances (from abroad) affects the marginal spending behaviour of households on various consumption and investment goods. Expenditures were categorized into six namely food, education, housing, health, consumer goods and others. Results show that households receiving remittances spend less at the margin on consumption of food, consumer goods and durables than do households receiving no remittances. The analysis further shows that a large amount of remittance money goes into education. At the margin, households receiving domestic and foreign remittances spend 45 and 58 percent more, respectively, on education than do households with no remittances. Like other studies, this paper finds that remittance-receiving households spend more at the margin on housing.
Spalangia simplex Perkins 1910
Creators: name: Shimbori, Eduardo Mitio
name: Costa, Valmir Antonio
name: Zucchi, Roberto Antonio
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Pteromalidae
Spalangia
Spalangia simplex

description: Spalangia simplex Perkins, 1910
(Figs 3, 11, 14, 15)
 Diagnosis. Head and pronotal collar smooth, with scattered setae originating from pinprick-like punctures on head and tiny bumps on pronotal collar; gena with malar sulcus present; midlobe of mesoscutal median lobe smooth and shiny, with only a transverse row of setiferous punctures and a single median puncture posteriorly males with ventral setae of scape distinctly longer than dorsal setae (Bouček 1963; Gibson 2009).
 Taxonomy. See S. endius.
 Biology. This species has fewer host records than the other two species of Spalangia discussed here, most of them associated with species of Tephritidae and Drosophilidae (Gibson 2009; Sureshan & Farsana 2014). Tephritid hosts in Brazil are A. serpentina (Fernandes et al. 2013), Ce. capitata (Silva et al. 2020).
 Biological control. There is insufficient information on the host range to address the potential of this species for biological control programs.
 Distribution. Mainly tropical, but reaching temperate zones of the New and Old World, and Australasia.
 Distribution in Brazil (associated with Tephritidae). AP (Silva et al. 2007), CE and RN (Silva et al. 2020) and SP (Fernandes et al. 2013).
description: Published as part of Shimbori, Eduardo Mitio, Costa, Valmir Antonio & Zucchi, Roberto Antonio, 2020, Annotated checklist and illustrated key to parasitoids (Hymenoptera: Diapriidae Eulophidae and Pteromalidae) of fruit flies (Diptera, Tephritidae) in Brazil, pp. 53-70 in Zootaxa 4858 (1) on page 64, DOI: 10.11646/zootaxa.4858.1.3, http://zenodo.org/record/4411551
Simulating JWST/NIRCam Color Selection of High-Redshift Galaxies
Creators: name: Hainline, Kevin N.
name: Hviding, Raphael E.
name: Rieke, Marcia
name: Shivaei, Irene
name: Endsley, Ryan
name: Curtis-Lake, Emma
name: Smit, Renske
name: Williams, Christina C.
name: Alberts, Stacey
name: Boyett, Kristan N K
name: Bunker, Andrew J.
name: Egami, Eiichi
name: Maseda, Michael V.
name: Tacchella, Sandro
name: Willmer, Christopher N. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The NIRCam instrument on the upcoming James Webb Space Telescope (JWST) will offer an unprecedented view of the most distant galaxies. In preparation for future deep NIRCam extragalactic surveys, it is crucial to understand the color selection of high-redshift galaxies using the Lyman dropout technique. To that end, we have used the JAdes extraGalactic Ultradeep Artificial Realizations (JAGUAR) mock catalog to simulate a series of extragalactic surveys with realistic noise estimates. This enables us to explore different color selections and their impact on the number density of recovered high-redshift galaxies and lower-redshift interlopers. We explore how survey depth, detection signal-to-noise ratio, color selection method, detection filter choice, and the presence of the Ly$α$ emission line affects the resulting dropout selected samples. We find that redder selection colors reduce the number of recovered high-redshift galaxies, but the overall accuracy of the final sample is higher. In addition, we find that methods that utilize two or three color cuts have higher accuracy because of their ability to select against low-redshift quiescent and faint dusty interloper galaxies. We also explore the near-IR colors of brown dwarfs and demonstrate that, while they are predicted to have low on-sky densities, they are most likely to be recovered in F090W dropout selection, but there are color cuts which help to mitigate this contamination. Overall, our results provide NIRCam selection methods to aid in the creation of large, pure samples of ultra high-redshift galaxies from photometry alone.
description: 24 pages, 20 figures, accepted for publication in the Astrophysical Journal
A Remark on the Aharonov-Bohm Potential and a Discussion on the Electric Charge Quantization
Creators: name: Barone, F. A.
name: Helayel-Neto, J. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The purpose of this work is to stress on a mathematical requirement of the Stokes' theorem that, naturally, yields a reassessment of the electric charge quantization condition, which is, here, explicitly carried out in the context of the Aharonov-Bohm set-up. We argue that, by virtue of an ambiguity in the definition of the circulation of the vector potential, a modified quantization condition comes out for the electric charge that opens the way for understanding fundamental fractional charges. One does not, any longer, need to rely on the existence of a magnetic monopole to justify electric charge quantization.
description: 7 pages, 1 eps figure, title changed, references added, minor changes in the text, work presented at the Fourth International Winter Conference on Mathematical Methods in Physics, 09 - 13 August 2004, Centro Brasileiro de Pesquisas Fisicas (CBPF/MCT), Rio de Janeiro, Brazil
Gonadotropins and leptin : the role and molecular mechanism in normal and neoplastic ovarian epithelium cells
Creators: name: Choi, Jung-Hye
Publisher: name: University of British Columbia
Year: 2010

description: Ovarian cancer is the sixth most common cancer and the fifth leading cause of cancer-related death among women in developed countries. There is increasing evidence suggesting that the hormonal environment of the normal ovarian surface epithelium (OSE) and ovarian epithelial cancer (OEC) cells is associated with the development and progression of ovarian cancer. Exposure to excess gonadotropins and leptin, related to menopause or infertility therapy and obesity, respectively, has been implicated as a risk factor for ovarian cancer. However, the molecular mechanism underlying the response to gonadotropins is not clearly understood, and nothing is known about the role of leptin in either normal OSE or its malignant counterpart. In the present study, we hypothesized that: overexpression of the FSH receptor (FSHR) affects particular oncogenic pathways in OSE cells and treatment with FSH and/or LH alters cell proliferation and metastasis, respectively, by interacting with growth factor and/or other hormone systems, and regulating proteolysis. Whether leptin plays a proliferative role in ovarian cancer cells was also investigated. Furthermore, we examined the relevant intracellular signal transduction pathways mediating the actions of gonadotropins and leptin which may be important in the development and progression of ovarian cancer. The FSHR overexpressing-80PCF cell line showed increased levels of EGFR, HER-2/neu and c-Myc, as well as a constitutive activation of ERK1/2. The growth inhibitory effect of GnRH I/II was blocked by pretreatment with FSH or LH. Treatment of pre-neoplastic IOSE-80PC cells with gonadotropins resulted in a significant increase of EGFR mRNA and EGFR protein levels via ERK1/2 and phosphatidyi-inositol-3-kinase (PI3K) activation. Both FSH and LH induced a significant synergistic stimulation of mitogenesis in the presence of EGF. In parallel experiments on metastasis, treatment with FSH or LH significantly increased the invasion of ovarian cancer cells including BG-1, CaOV-3 and SKOV-3 cells. Treatment of SKOV-3 cells with FSH or LH enhanced net MMP/TIMP balance and proteolysis potential. With regard to leptin, treatment with leptin significantly stimulated the growth of estrogen-sensitive BG-1 cells via a ligand-independent ERα pathway. Taken together, these findings strongly support a regulatory role of gonadotropins and leptin in both normal and neoplastic OSE cells.