cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
AZ INFRASTRUKTÚRA ÉS A MEZŐGAZDASÁG
Creators: name: Abonyi-Palotas, Jolan
name: Abonyi-Palotas, Jolan
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Research and Development/Tech Change/Emerging Technologies
subject: infrastruktúra
subject: speciális agrár infrastruktúra
subject: fejlettség
subject: fejlesztés
subject: infrastructure
subject: special agricultural infrastructure
subject: maturity
subject: development

description: A rendszerváltozás óta alapjaiban változtak meg a külső és a belső körülmé-nyek, a termelés, a feldolgozás és az értékesítés közgazdasági környezete. Az élelmiszergazdaság elemei közti régi, akkor sem teljes összhang összeomlott, az újak pedig még nem jöttek létre, nem váltak általánossá. Elmaradott, szűk ke-resztmetszetű a mezőgazdaság infrastruktúrája és sajnos ez jellemzi az agrártér-ség, a vidék infrastruktúráját is. A mezőgazdasági térségekben lassabb a növe-kedés és a fejlődés üteme, visszafogottabb a beruházás, erősebb a tőkehiány. Ezen sokat lendíthet a speciális infrastruktúra átgondolt, dinamikus fejlesztése. - The internal and external circumstances, production, processing and the economic sales environment have all fundamentally changed since the democratic transformation. The old, never quite harmonious accord between elements of the food economy collapsed, and new ones were not established and did not become general. The rural economy’s infrastructure is outdated and results in bottle-necks, which is unfortunately also characteristic of the infrastructures of regional agriculture and the countryside. In rural economy regions growth and the rate of development is slower, investment is more restrained and the lack of capital is stronger. The thoughtful, dynamic development of special infrastructure can give this great impetus.
Tolumnia antennata Distant
Creators: name: Kaur, Harbhajan
name: Sharma, Kanu
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Heteroptera
Pentatomidae
Tolumnia
Tolumnia antennata

description: Tolumnia antennata Distant
Tolumnia antennata has diploid chromosome complement of 2n=14=12A+XY. Two pairs of autosomes are distinctly large while rest of the four pairs show slight gradation in size. X is smaller than the two largest pairs of autosomes while Y is the smallest element of the complement (fig.1). At diffuse stage, X and Y chromosomes remain fused together forming a single darkly stained heteropycnotic body while the autosomes appear as diffused chromatin (fig. 2). At diplotene, autosomal bivalents become distinct but X and Y still remain fused. One (68.48% of 36 cells analyzed) or two (31.52%) autosomal bivalents show more than one chiasma while the rest show one terminal chiasma each (figs. 3, 4). By diakinesis, two chiasmata in one of the bivalent are seen in 13% of 26 cells analyzed. X and Y become distinct and well separated (Fig 5). At metaphase I, all autosomal bivalents form a ring and sex chromosomes lie within the ring (fig. 6). At metaphase II, too, autosomes form a ring, while X and Y that associate terminally to form a pseudobivalent, lie within the ring (fig. 7). Two types of telophase II plates are seen, one with 6A+X and the other with 6A+ Y (fig. 8).
description: Published as part of Kaur, Harbhajan & Sharma, Kanu, 2015, First report on meiotic behavior of chromosomes in three species of subfamily Pentatominae (Pentatomidae: Heteroptera), pp. 393-400 in Zootaxa 3920 (2) on page 394, DOI: 10.11646/zootaxa.3920.2.10, http://zenodo.org/record/233521
Instabilities of Near-Extremal Smeared Branes and the Correlated Stability Conjecture
Creators: name: Harmark, T.
name: Niarchos, V.
name: Obers, N. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the classical and local thermodynamic stability of non- and near-extremal Dp-branes smeared on a transverse direction. These two types of stability are connected through the correlated stability conjecture for which we give a proof in this specific class of branes. The proof is analogous to that of Reall for unsmeared branes, and includes the construction of an appropriate two-parameter off-shell family of smeared Dp-brane backgrounds. We use the boost/U-duality map from neutral black strings to smeared black branes to explicitly demonstrate that non-and near-extremal smeared branes are classically unstable, confirming the validity of the conjecture. For near-extremal smeared branes in particular, we show that a natural definition of the grand canonical ensemble exists in which these branes are thermodynamically unstable, in accord with the conjecture. Moreover, we examine the connection between the unstable Gregory-Laflamme mode of charged branes and the marginal modes of extremal branes. Some features of T-duality and implications for the finite temperature dual gauge theories are also discussed.
description: 35 pages, 1 figure
Fruit production forecasting by neuro-fuzzy techniques
Creators: name: Atsalakis, George S.
name: Atsalakis, Ioanna G.
name: Atsalakis, George S.
name: Atsalakis, Ioanna G.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural Finance
subject: Crop Production/Industries
subject: Fruit forecasting
subject: neuro-fuzzy
subject: ANFIS
subject: AR
subject: ARMA
subject: forecasting
subject: fruit production

description: Neuro-fuzzy techniques are finding a practical application in many fields such as in model identification and forecasting of linear and non-linear systems. This paper presents a neuro-fuzzy model for forecasting the fruit production of some agriculture products (olives, lemons, oranges, cherries and pistachios). The model utilizes a time series of yearly data. The fruit forecasting is based on Adaptive Neural Fuzzy Inference System (ANFIS). ANFIS uses a combination of the least-squares method and the backprobagation gradient descent method to estimate the optimal food forecast parameters for each year. The results are compared to those of an Autoregressive (AR) model and an Autoregressive Moving Average model (ARMA).
Evaluation of consumers' honey purchase habits in Hungary
Creators: name: Vanyi Arvane, Georgina
name: Csapo, Zsolt
name: Karpati, Laszlo
name: Vanyi Arvane, Georgina
name: Csapo, Zsolt
name: Karpati, Laszlo
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Marketing
subject: FOS: Economics and business
subject: Healthy lifestyle
subject: honey purchasing
subject: nutrimarketing

description: The objective of the study is to develop a strategy for Hungarian honey sales based on the consumers’ purchase habits. Altogether 902 people were asked randomly by questionnaire. Data collection was carried out personally in hypermarkets as well as fruit and vegetable markets (in Debrecen, Nyíregyháza, Szolnok). Altogether 821 questionnaires were evaluated. Cross tables were created according to sex, age, qualification and income. Data coherences were analysed through Pearson Chi2 statistical method. Main findings are as follows: · There are many different types of honey produced in Hungary, but people don’t know too much about them, they consume only a few of them. · Mainly the so-called traditional acacia and flower honey are consumed. · Analysing the variables we didn’t find significant differences in the different groups; most important criteria when purchasing honey are quality, price, type of honey and quality of packaging. · Older people take into consideration mainly the price, name of the producer and size of packaging. · Most of consumers purchase honey only a few times per year, or monthly and mainly in hypermarkets or directly from the producer.
Corrado Ricci: le radici estetico-antropologiche di una politica museale
Creators: name: Cantelli, Chiara
Publisher: name: Aisthesis. Pratiche, linguaggi e saperi dell’estetico
Year: 2018

description: Purpose of the essay is to outline the theoretical roots of Ricci’s museum and publishing policies, inscribed within a visual disclosure plan of our archaeological artistic heritage identified as the pivot on which to build a collective identity of our nation at the dawn of its unification. These policies are closely linked to Ricci’s conception of art, recognized by himself as the formal expression of a – both individual and collective – historical feeling, finding its immediate grip on the public in the optical vividness of its representational form. This conception, however, finds its aesthetic-anthropological foundation in a book belonging to Ricci’s early production: “The art of children”.
description: Aisthesis. Pratiche, linguaggi e saperi dell’estetico, Vol. 11 No. 2 (2018): Aesthetics of Photography
Sociophysics Simulations III: Retirement Demography
Creators: name: Zekri, Lotfi
name: Stauffer, Dietrich
Publisher: name: arXiv
Year: 2005
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: This third part of the lecture series deals with the question: Who will pay for your retirement? For Western Europe the answer may be ``nobody'', but for Algeria the demography looks more promising.
description: For 8th Granada seminar (AIP Conf. Proc.); 8 pages including 3 figures
Light propagation and gravitational lensing on the Weyl-like spacetime in scalar-tensor theories of gravity
Creators: name: Tsuneishi, Shin-ei
name: Watanabe, Kazuya
name: Tsuchida, Tooru
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study light propagation and gravitational lensing in scalar-tensor theories of gravity by using a static, axisymmetric exterior solution. The solution has asymptotic flatness properties and is reduced to Voorhees's one in the case of a constant scalar field. Our studies are done by using a technique of the conformal transformation such that their results are independent of details of scalar-tensor theories. For some specific cases, we analytically obtain a deflection angle of the light path and find that it can become negative. The appearance of a negative deflection angle indicates ``reflection'' of a light path, and we investigate under which conditions the light reflection occurs. As for the optical scalars, the Weyl source-term shows significantly different properties compared with that in the Schwarzschild spacetime. We therefore classify a space of the model parameters into four distinct regions on the basis of the qualitative properties of the Weyl source-term and find a close relationship between this classification and the occurrence of the light reflection. We finally solve the null geodesic equations and the optical scalar equations numerically. We find that a picture of the thin lens is applicable and give a simple analytic model for the optical scalars. As for the properties of gravitational lensing, the deflection angle and the image distortion rate are obtained as functions of the impact parameter. Again, we find a close relationship between their qualitative properties and the classification above.
description: 38 pages, 23 figures and 1 table, Typographical errors are corrected. To appear in Progress of Theoretical Physics
RÉGIÓ- ÉS TELEPÜLÉSMARKETING DEBRECENBEN
Creators: name: Gergely, Aniko
name: Szabo, Zoltan
name: Gergely, Aniko
name: Szabo, Zoltan
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: régiómarketing
subject: településmarketing
subject: befektetők
subject: helyi lakosok
subject: turisták
subject: marketing a region
subject: marketing a settlement
subject: investors
subject: local inhabitants
subject: tourists

description: Munkámban Debrecen városmarketing-csoportjának tevékenységét vizsgáltam. Az általuk megjelölt három legfontosabb célcsoport igényeit térképeztem fel kvalitatív módszerrel, megvizsgálva ezzel, hogy a célcsoportok által igényelt intézkedések és a városmarketing segítségével kijelölt fejlesztési célok mennyiben fedik egymást. Megállapítottam, hogy a debreceni városmarketing-csoport évről-évre egyre kiforrottabb, egységes szemléletű, átgondolt marketinget valósít meg, de ennek ellenére jelentős erőfeszítések szükségesek a regionális szerep elérése, a helyzet részletes feltárása és a célcsoportokkal folytatott kommunikáció javítása érdekében. - My work examines the activities of Debrecen’s city-marketing group. Using a qualitative method I mapped the requirements of the three most important target groups they identified, thereby investigating the extent to which the measures required by the target groups overlap with the development goals highlighted with the help of the city-marketing group. I discovered that, year on year, the Debrecen city-marketing group implements increasingly mature, thoughtful marketing with a unified approach, despite which however, significant efforts are still required in the interests of achieving a regional role, of uncovering the situation in detail, and of improving communication with the target groups.
Single pulse modeling and the bi-drifting subpulses of radio pulsar B1839-04
Creators: name: Szary, Andrzej
name: van Leeuwen, Joeri
name: Weltevrede, Patrick
name: Maan, Yogesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the bi-drifting pulsar B1839-04, where the observed subpulse drift direction in the two leading pulse components is opposite from that in the two trailing components. Such diametrically opposed apparent motions challenge our understanding of an underlying structure. We find that for the geometry spanned by the observer and the pulsar magnetic and rotation axes, the observed bi-drifting in B1839-04 can be reproduced assuming a non-dipolar configuration of the surface magnetic field. Acceptable solutions are found to either have relatively weak $(\sim 10^{12} \,{\rm G})$ or strong $(\sim 10^{14} \,{\rm G})$ surface magnetic fields. Our single pulse modeling shows that a global electric potential variation at the polar cap that leads to a solid-body-like rotation of spark forming regions is favorable in reproducing the observed drift characteristics. This variation of the potential additionally ensures that the variability is identical in all pulse components resulting in the observed phase locking of subpulses. Thorough and more general studies of pulsar geometry show that a low ratio of impact factor to opening angle $(β/ ρ)$ increases the likelihood of bi-drifting to be observed. We thus conclude that bi-drifting is visible when our line of sight crosses close to the magnetic pole.
description: 15 pages, 14 figures, accepted for publication in ApJ
Migrants’ International Transfers and Educational Expenditure: Empirical Evidence from Albania
Creators: name: Cattaneo, Cristina
name: Cattaneo, Cristina
Publisher: name: Unknown
Year: 2010
Subjects: subject: Labor and Human Capital
subject: Migrant Remittances
subject: Engel Curves
subject: Education Expenditure

description: The present paper analyses the expenditure behavior of Albanian families. The objective is to cast some light upon the relationship between education expenditure and the volume of remittances, sent from abroad by household members. To assess the existence of an education enhancing effect of remittances, an Engel curve framework is employed, where heterogeneity in interests or in bargaining power among the members within the households is assumed. The empirical estimation accounts for the censored nature of the education expenditure through using Heckman two-step as well as a semiparametric model for sample selection. Finally, quintile regression analysis is employed to investigate whether migrants’ remittances have a differentiated effect on various quantiles of the conditional distribution of the education consumption.
Status and expected performance of the LHCb experiment
Creators: name: Perret, Pascal
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: LHCb is a dedicated b-physics experiment at the future LHC collider. Its construction has started and it will be ready to take data from the start of LHC operation, scheduled in 2007, and directly at its full physics potential. LHCb will benefit from an unprecedented source of b-hadrons, provided by LHC, to improve substantialy precision measurements of CP violation parameters in many different and complementary channels. The detector provides good particle identification, vertexing and has an efficient and flexible trigger. Its status and expected performance are reviewed.
description: 8 pages, 2 figures, To appear in the Proceedings of 6th International Conference on Hyperons, Charm & Beauty Hadrons, Chicago, United States, June 27 -- July 3 2004
Chiral symmetry breaking and stability of strangelets
Creators: name: Yasui, S.
name: Hosaka, A.
name: Toki, H.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the stability of strangelets by considering dynamical chiral symmetry breaking and confinement. We use a $U(3)_{L} \times U(3)_{R}$ symmetric Nambu--Jona-Lasinio model for chiral symmetry breaking supplemented by a boundary condition for confinement. It is shown that strangelets with baryon number $A < 2 \times 10^{3}$ can stably exist. For the observables, we obtain the masses and the charge-to-baryon number ratios of the strangelets. These quantities are compared with the observed data of the exotic particles.
description: 10 pages, 9 figures, submitted to Physical Review D
Fisher formalism for anisotropic gravitational-wave background searches with pulsar timing arrays
Creators: name: Ali-Haïmoud, Yacine
name: Smith, Tristan L.
name: Mingarelli, Chiara M. F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: Pulsar timing arrays (PTAs) are currently the only experiments directly sensitive to gravitational waves with decade-long periods. Within the next five to ten years, PTAs are expected to detect the stochastic gravitational-wave background (SGWB) collectively sourced by inspiralling supermassive black hole binaries. It is expected that this background is mostly isotropic, and current searches focus on the monopole part of the SGWB. Looking ahead, anisotropies in the SGWB may provide a trove of additional information both on known and unknown astrophysical and cosmological sources. In this paper, we build a simple yet realistic Fisher formalism for anisotropic SGWB searches with PTAs. Our formalism is able to accommodate realistic properties of PTAs, and allows simple and accurate forecasts. We illustrate our approach with an idealized PTA consisting of identical, isotropically distributed pulsars. In a companion paper, we apply our formalism to current PTAs and show that it can be a powerful tool to guide and optimize real data analysis.
description: Version accepted for publication in PRD after minor changes. Follow-up paper on applications: arXiv:2010.13958
The prosodic system of the Dakelh (Carrier) language
Creators: name: Gessner, Suzanne C.
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation is a study of the prosodic system of Dakelh (Carrier), an Athapaskan language of central interior British Columbia, focusing primarily on the endangered Lheidli dialect spoken in the area of Prince George, B.C. The study is primarily based on original fieldwork data, elicited from three native speakers of Lheidli Dakelh, and partly on comparison with the Nak'azdli dialect as reported in Story (1989). This work contributes much-needed empirical data to the long-standing debate over the proper characterization of Dakelh prosody with respect to notions such as tone vs. pitch accent vs. stress. Under the general rubric of prosody, three topics are investigated in detail. The first is an analysis of syllable and foot structure, developed within the framework of Optimality Theory, which addresses such issues as word minimality, epenthesis patterns, syllabification, and the relationship between syllable structure and stress. For example, epenthesis and deletion are found to be highly sensitive to morphological factors and morphologically-defined domains. Secondly, a phonetic investigation of properties which are usually correlated with stress, namely increased pitch, duration, and/or amplitude, is undertaken. One of the findings is that in addition to word-final stress in verbs, manifested primarily in terms of duration, "prominence" in the form of increased pitch is typically also found on one of the earlier syllables in the word. The location of the latter is partly determined phonologically, and in part lexically; certain prefixes appear to carry lexical tone, as in many related languages. The third topic under examination is the phonological behaviour of tone. Though a lexical tone contrast cannot be established on the basis of isolation forms alone, evidence of such contrasts comes from sandhi processes. The Lheidli dialect is shown to differ significantly from the Nak'azdli dialect in the phonological realization of tone patterns; for example, the distribution of high tone is partly sensitive to the phonation type of a preceding consonant. The word-internal distribution patterns as well as the tone sandhi system of both dialects are analyzed in Optimality Theory. Tone sandhi is shown to be derivationally opaque and thus highly problematic for standard versions of the theory.
Note & Recensioni
Creators: name: AAVV, AAVV
Publisher: name: Aisthesis. Pratiche, linguaggi e saperi dell’estetico
Year: 2018

description: Aisthesis. Pratiche, linguaggi e saperi dell’estetico, Vol. 11 No. 1 (2018): Mind, Nature and Beauty in the Medieval Philosophy
ИЧКИ ИШЛАР ОРГАНЛАРИНИ КАДРЛАР БИЛАН ТАЪМИНЛАШ:  ХОРИЖИЙ ДАВЛАТЛАР ТАЖРИБАСИ
Creators: name: Холматов, Бекмирза
Publisher: name: Zenodo
Year: 2025

description: Кадрларни танлаш ва ишга қабул қилиш, бошқариш ва салоҳиятидан унумли фойдаланишда айрим ривожланган хорижий давлатлар томонидан амалда қўллаб келинаётган методларни юртимизда татбиқ этиш долзарб масалалардан бири бўлиб қолмоқда.
Global properties of the spectrum of the Haldane-Shastry spin chain
Creators: name: Finkel, Federico
name: Gonzalez-Lopez, Artemio
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: We derive an exact expression for the partition function of the su(m) Haldane-Shastry spin chain, which we use to study the density of levels and the distribution of the spacing between consecutive levels. Our computations show that when the number of sites N is large enough the level density is Gaussian to a very high degree of approximation. More surprisingly, we also find that the nearest-neighbor spacing distribution is not Poissonian, so that this model departs from the typical behavior for an integrable system. We show that the cumulative spacing distribution of the model can be well approximated by a simple functional law involving only three parameters.
description: RevTeX 4, 7 pages, 4 figures. To appear in Phys. Rev. B
Otto tesi per una riconcezione dell’estetica (e due conclusioni meta-estetiche)
Creators: name: Desideri, Fabrizio
Publisher: name: Aisthesis. Pratiche, linguaggi e saperi dell’estetico
Year: 2012

description: Eight Theses for the reconception of Aesthetics. An expressivist contribute on the debate about New Realism.
description: Aisthesis. Pratiche, linguaggi e saperi dell’estetico, Vol. 5 (2012): Vol 5 (2012) Special Issue – Riconcepire l'estetica
Tradable Permits vs Ecological Dumping
Creators: name: Antoniou, Fabio
name: Hatzipanayotou, Panos
name: Koundouri, Phoebe
name: Antoniou, Fabio
name: Hatzipanayotou, Panos
name: Koundouri, Phoebe
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Strategic Environmental Policy
subject: Tradable Permits
subject: Race to the top

description: In this paper we examine an alternative policy scenario, where governments allow polluting firms to trade permits in a strategic environmental policy model. We demonstrate, among other things, that with no market power in the permits market, governments of the exporting firms do not have an incentive to under-regulate pollution in order to become more competitive. This strategic effect is reversed and leads to a welfare level closer to the cooperative one and strictly higher to that when permits are non-tradable. Allowing for market power in the permits market, the incentive to under-regulate pollution re-appears regardless of whether permits are tradable or not. With tradable permits, however, the incentive to under-regulate pollution is comparatively weaker relative to the case of non-tradable permits. This entails potential benefits for the exporting firms and countries since the prisoners’ dilemma is moderated.
Reaction-diffusion dynamics through a Gaussian sink in the presence of an attractive stepwise linear potential energy curve
Creators: name: Samanta, Chinmoy
name: Chakraborty, Aniruddha
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: In the present report, we have introduced the Fredholm integral method to solve the Smoluchowski equation in the Laplace domain. We get an exact semi-analytical solution for the linear potential energy curve in the dynamic diffusion process, and the survival probability is calculated by the numerical inverse Laplace transform method. We apply our method in two different physical contexts for finding different observable like average rate constant in electronic relaxation in solution and quantum yields in a photosynthetic system or doped molecular crystal.
Presentazione
Creators: name: Matteucci, Giovanni
Publisher: name: Aisthesis. Pratiche, linguaggi e saperi dell’estetico
Year: 2012

description: The first Aisthesis’s Special Issue collects the contributions to the conference “Riconcepire l’estetica. Prospettive a confront” that have been held in Florence in February 2012, organized by “Aisthesis”, “Rivista di Estetica” and “Seminario permanente di estetica”(SPES) in the perspective to contribute to a radical reconfiguration of conceptual domain of aesthetics.
description: Aisthesis. Pratiche, linguaggi e saperi dell’estetico, Vol. 5 (2012): Vol 5 (2012) Special Issue – Riconcepire l'estetica
Micrometric Position Monitoring Using Fiber Bragg Grating Sensors in Silicon Detectors
Creators: name: Basile, E.
name: Bellucci, F.
name: Benussi, L.
name: Bertani, M.
name: Bianco, S.
name: Caponero, M. A.
name: Colonna, D.
name: Di Falco, F.
name: Fabbri, F. L.
name: Felli, F.
name: Giardoni, M.
name: La Monaca, A.
name: Massa, F.
name: Mensitieri, G.
name: Ortenzi, B.
name: Pallotta, M.
name: Paolozzi, A.
name: Passamonti, L.
name: Pierluigi, D.
name: Pucci, C.
name: Russo, A.
name: Saviano, G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We show R&D results including long term stability, resolution, radiation hardness and characterization of Fiber Grating sensors used to monitor structure deformation, repositioning and surveying of silicon detector in High Energy Physics.
description: Presented by S.Bianco at ICATPP05, Villa Olmo (Como) Italy, November 2005. 5 pages, 6 figures, uses lnfprep.sty
Second Best Environmental Policies under Uncertainty
Creators: name: Antoniou, Fabio
name: Hatzipanayotou, Panos
name: Koundouri, Phoebe
name: Antoniou, Fabio
name: Hatzipanayotou, Panos
name: Koundouri, Phoebe
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Strategic Environmental Policy
subject: Pollution
subject: Choice of Policy Instrument
subject: Uncertainty

description: We construct a strategic trade model of an international duopoly, whereby production by exporting firms generates a local pollutant. Governments use environmental policies, i.e., an emissions standard or a tax, to control pollution and for rent shifting purposes. Contrary to their firm, however, governments are unable to perfectly foresee the actual level of demand, the cost of abatement and the damage caused from pollution. Under these modes of uncertainty we derive sufficient conditions under which the governments optimally choose an emissions tax over an emissions standard.
Modeling Biased Technical Change. Implications for Climate Policy
Creators: name: Carraro, Carlo
name: De Cian, Enrica
name: Nicita, Lea
name: Carraro, Carlo
name: De Cian, Enrica
name: Nicita, Lea
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Technical Change
subject: Climate Policy
subject: Stabilization Cost

description: Climate-economy models aiming at quantifying the costs and effects of climate change impacts and policies have become important tools for climate policy decision-making. Although there are several important dimensions along which models differ, this paper focuses on a key component of climate change economics and policy, namely technical change. This paper tackles the issues of whether technical change is biased towards the energy sectors, the importance of the elasticity of substitution between factors in determining this bias and how mitigation policy is likely to affect it. The analysis is performed using the World Induced Technical Change model, WITCH. Three different versions of the model are proposed. The starting set-up includes endogenous technical change only in the energy sector. A second version introduces endogenous technical change in both the energy and non-energy sectors. A third version of the model embodies different sources of technical change, namely R&D and human capital. Although different formulations of endogenous technical change have only a minor influence on climate policy costs, the macroeconomic effects on knowledge and human capital formation can vary greatly.
Tailoring the dynamics of spintronic neural networks
Creators: name: Moureaux, Anatole
name: de Wergifosse, Simon
name: Chopin, Chloé
name: Abreu Araujo, Flavio
Publisher: name: Zenodo
Year: 2024
Subjects: Spintronics
Machine learning

description: Nonlinear random projection machines are efficient neural networks capable of classifying real- life data with lower computational demands compared to standard artificial neural networks. They are well-suited for hardware implementation using nonlinear devices, enabling the creation of low-power hardware neural networks. We implement such a network using vortex-based spin-torque oscillators (STVOs), magnetic tunnel junctions (MTJs) that transform input signals nonlinearly at low power. We identify three physical parameters affecting the STVO dynamics and the network's performance during data classification. We demonstrate their impact on a simplified nonlinear separation task and optimize them using ultrafast data-driven simulations for image recognition on the MNIST dataset. This approach holds potential for further hyperparameter optimization in STVO-based hardware random projection machines, and for the efficient development of custom neural architectures tailored for neuromorphic data classification.
Trace Detection of Metastable Helium Molecules in Superfluid Helium by Laser-Induced Fluorescence
Creators: name: McKinsey, D. N.
name: Lippincott, W. H.
name: Nikkel, J.
name: Rellergert, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Astrophysics (astro-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We describe an approach to detecting ionizing radiation that combines the special properties of superfluid helium with the sensitivity of quantum optics techniques. Ionization in liquid helium results in the copious production of metastable helium molecules, which can be detected by laser-induced fluorescence. Each molecule can be probed many times using a cycling transition, resulting in the detection of individual molecules with high signal to noise. This technique could be used to detect neutrinos, weakly interacting massive particles, and ultracold neutrons, and to image superfluid flow in liquid He-4.
description: 10 pages, 2 figures. Submitted to Physical Review Letters
Progenitor properties of type II supernovae: fitting to hydrodynamical models using Markov chain Monte Carlo methods
Creators: name: Martinez, L.
name: Bersten, M. C.
name: Anderson, J. P.
name: González-Gaitán, S.
name: Förster, F.
name: Folatelli, G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The progenitor and explosion properties of type II supernovae (SNe II) are fundamental to understand the evolution of massive stars. Special interest has been given to the range of initial masses of their progenitors, but despite the efforts made, it is still uncertain. Direct imaging of progenitors in pre-explosion images point out an upper initial mass cutoff of $\sim$18$M_{\odot}$. However, this is in tension with previous studies in which progenitor masses inferred by light curve modelling tend to favour high-mass solutions. Moreover, it has been argued that light curve modelling alone cannot provide a unique solution for the progenitor and explosion properties of SNe II. We develop a robust method which helps us to constrain the physical parameters of SNe II by fitting simultaneously their bolometric light curve and the evolution of the photospheric velocity to hydrodynamical models using statistical inference techniques. Pre-supernova red supergiant models were created using the stellar evolution code MESA, varying the initial progenitor mass. The explosion of these progenitors was then processed through hydrodynamical simulations, where the explosion energy, synthesised nickel mass, and the latter's spatial distribution within the ejecta were changed. We compare to observations via Markov chain Monte Carlo methods. We apply this method to a well-studied set of SNe with an observed progenitor in pre-explosion images and compare with results in the literature. Progenitor mass constraints are found to be consistent between our results and those derived by pre-SN imaging and the analysis of late-time spectral modelling. We have developed a robust method to infer progenitor and explosion properties of SN II progenitors which is consistent with other methods in the literature, which suggests that hydrodynamical modelling is able to accurately constrain physical properties of SNe II.
description: Accepted for publication on Astronomy and Astrophysics
Note e recensioni
Creators: name: Vari, Autori
Publisher: name: Aisthesis. Pratiche, linguaggi e saperi dell’estetico
Year: 2012

description: Adriano Ardovino, Raccogliere il mondo. Per una fenomenologia della rete [Angela Maiello] • Clive Bell, L’Arte [Filippo Focosi] • Alessandro Bertinetto, Il pensiero dei suoni. Temi di filosofia della musica [Domenica Lentini] • Terrence Deacon, Incomplete Nature. How Mind Emerged From Matter [Mariagrazia Portera] • Roger Scruton, La bellezza. Ragione ed esperienza estetica [Filippo Focosi] • Miriam Bratu Hansen, Cinema and Experience. Sigfried Kracauer, Walter Benjamin and Theoder W. Adorno [Domenico Spinosa] • Lawrence Barsalou, scritti sulla “Grounded Cognition” [Gialuca Consoli] • Dis-forme, Università degli Studi di Palermo, 28-29 maggio 2012 [Michele Bertolini e Pietro Conte]
description: Aisthesis. Pratiche, linguaggi e saperi dell’estetico, Vol. 5 No. 2 (2012): Il verso dell’immagine
Optimal Emission Tax with Endogenous Location Choice of Duopolistic Firms
Creators: name: Ikefuji, Masako
name: Itaya, Jun-Ichi
name: Okamura, Makoto
name: Ikefuji, Masako
name: Itaya, Jun-Ichi
name: Okamura, Makoto
Publisher: name: Unknown
Year: 2010
Subjects: subject: Environmental Economics and Policy
subject: Environmental Policy
subject: Relocation
subject: Welfare

description: This paper explores optimal environmental tax policy under which duopoly firms strategically choose the location of their plants in a simple three-stage game. We examine how the relationship between the optimal emission tax and the choice of location of duopoly firms affects the welfare of the home country. We characterize the relationship between the optimal emission tax and the fixed cost, depending on the degree of environmental damage from production. Finally, we show the existence of asymmetric equilibrium in which either firm chooses relocation of its plant even if the duopoly firms are identical ex ante.
Nuclear mass form factors from coherent photoproduction of $π^0$ mesons
Creators: name: Krusche, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Data for coherent photoproduction of $π^0$ mesons from nuclei ($^{12}$C, $^{40}$Ca, $^{93}$Nb, $^{nat}$Pb), recently measured with the TAPS detector at the Mainz MAMI accelerator, have been analyzed in view of the mass form factors of the nuclei. The form factors have been extracted in plane wave approximation of the $A(γ,π^0)A$ reaction and corrected for final state interaction effects with the help of distorted wave impulse approximations. Nuclear mass rms-radii have been calculated from the slope of the form factors for $q^2\to 0$. Furthermore, the Helm model (hard sphere form factor folded with Gaussian) was used to extract diffraction radii from the zeroes of the form factor and skin thicknesses from the position and height of its first maximum. The diffraction radii from the Helm model agree with the corresponding charge radii obtained from electron scattering experiments within their uncertainties of a few per cent. The rms-radii from the slope of the form factors are systematically lower by up to 5% for PWIA and up to 10% for DWIA. Also the skin thicknesses extracted from the Helm model are systematically smaller than their charge counter parts.
description: Accepted for publication in Eur. Phys. J. A
Profit Sharing under the Threat of Nationalization
Creators: name: Di Corato, Luca
name: Di Corato, Luca
Publisher: name: Unknown
Year: 2010
Subjects: subject: Financial Economics
subject: Real Options
subject: Nash Bargaining
subject: Expropriation
subject: Natural Resources
subject: Foreign Direct Investment

description: A government bargains a mutually convenient agreement with a multinational corporation to extract a natural resource. The corporation bears the initial investment and earns as a return a share on the profits. The host country provides access and guarantee conditions of operation. Being the investment totally sunk, the corporation must account in its plan not only for uncertainty on market conditions but also for the threat of nationalization. In a real options framework where the government holds an American call option on nationalization we show under which conditions a Nash bargaining is feasible and leads to attain a cooperative agreement maximizing the joint venture surplus. We find that the threat of nationalization does not affect the investment time trigger but only the feasible bargaining set. Finally, we show that the optimal sharing rule results from the way the two parties may differently trade off rents with option value.
Photosynthetic iron requirements of marine diatoms
Creators: name: Strzepek, Robert Francis
Publisher: name: University of British Columbia
Year: 2009

description: Marine diatoms play a predominant role in the global carbon cycle but their growth is often limited by iron availability, especially in some oceanic regions. Diatoms from oceanic waters have lower iron requirements than coastal species, but the biochemical basis for this difference is unknown. The photosynthetic apparatus is a probable source of interspecific variability in iron requirements because it is both ironrich and highly plastic, but it has not been examined in any oceanic diatom species. I examined the phenotypic and genotypic variability in diatom iron requirements and measured for the first time the cellular concentrations of photosystems in a coastal and an oceanic diatom (Thalassiosira weissflogii and T. oceanica, respectively) acclimated to a range of irradiances and iron concentrations. Growth and photosynthetic rates, elemental composition, and photosynthetic pigments were measured. Photosynthetic electron transport chain complexes were quantified to construct a photosynthetic iron budget. In iron-limited diatoms, nearly all the cellular iron was required for photosynthetic electron transport. Consequently, cellular and photosynthetic iron requirements co-varied with growth irradiance. Growth and photosynthetic measurements established that the increased iron requirement of low light acclimated cells did not appreciably heighten their susceptibility to iron limitation, or necessarily result in ironlight co-limitation, because the reduction in growth rate (Fe demand) at low light was greater than the increase in Fe requirements. The diatoms acquired comparatively more iron at low light by uncoupling rates of steady state iron uptake from growth and, in the coastal diatom, by reducing cell volumes. Instead, diatoms were more iron-stressed growing near their maximum capacity under high irradiances. The photosynthetic iron requirements of the oceanic diatom were substantially diminished: the cytochrome b/f complex and photosystem I, the most iron-rich complexes, were present at extraordinarily low concentrations compared to those found in coastal diatoms. The concentrations of these complexes were comparably low in Fereplete cells, demonstrating that their abundance was not a consequence of iron deficiency. These results provide the first biochemical explanation for the low cellular iron requirements of an oceanic phytoplankton species.
Stable polynomials and crystalline measures
Creators: name: Kurasov, Pavel
name: Sarnak, Peter
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: Mathematical Physics (math-ph)
subject: Number Theory (math.NT)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 45B10, 52C23

description: Explicit examples of {\bf positive} crystalline measures and Fourier quasicrystals are constructed using pairs of stable of polynomials, answering several open questions in the area.
description: 15 pages, 1 figure
Scheduling and Routing Milk from Farm to Processors by a Cooperative
Creators: name: Prasertsri, Peerapon
name: Kilmer, Richard L.
name: Prasertsri, Peerapon
name: Kilmer, Richard L.
Publisher: name: Unknown
Year: 2004
Subjects: subject: Demand and Price Analysis
subject: Productivity Analysis
subject: cooperatives
subject: margins
subject: milk
subject: routing
subject: scheduling

description: A milk marketing cooperative (MMC) was created by Florida dairy farmers to link the primary supply of fluid milk with the derived demand of processors in the vertical market. For any given milk supply, the revenue or return to farmers per unit of milk is the average milk price received by the MMC minus the MMC’s transfer cost. An important task for the MMC is to operate the fluid milk hauling system that optimizes the MMC’s milk transfer cost (routing and scheduling cost) subject to farm and plant schedules. The objective of this study is to determine if it is economically feasible to implement a more efficient routing and scheduling of farm-to-plant milk collection by the MMC.
Raccontare i “posti” in società. Estetica delle configurazioni sociali
Creators: name: Abbate, Fabrizia
Publisher: name: Aisthesis. Pratiche, linguaggi e saperi dell’estetico
Year: 2012

description: Literature has and always will be a “reflection” of human acts and behaviours. This movement of intentional self- reflection of human identities is the main element of narrative imagination. We would like to focus on a special peculiarity of this literary reflection, which is the transfer of Space and Time from reality to the literary world. The result of the transfer is that Space and Time become an autonomus narrative structure able to reveal something new about literary genres and especially about human nature and society. We will compare Michail Bachtin’s analysis on the “chronotope” with Pierre Bourdieu’s studies on the “literary field”.
description: Aisthesis. Pratiche, linguaggi e saperi dell’estetico, Vol. 5 No. 2 (2012): Il verso dell’immagine
Predictors of Well-being and Productivity among Software Professionals during the COVID-19 Pandemic -- A Longitudinal Study
Creators: name: Russo, Daniel
name: Hanel, Paul H. P.
name: Altnickel, Seraphina
name: van Berkel, Niels
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: The COVID-19 pandemic has forced governments worldwide to impose movement restrictions on their citizens. Although critical to reducing the virus' reproduction rate, these restrictions come with far-reaching social and economic consequences. In this paper, we investigate the impact of these restrictions on an individual level among software engineers who were working from home. Although software professionals are accustomed to working with digital tools, but not all of them remotely, in their day-to-day work, the abrupt and enforced work-from-home context has resulted in an unprecedented scenario for the software engineering community. In a two-wave longitudinal study (N=192), we covered over 50 psychological, social, situational, and physiological factors that have previously been associated with well-being or productivity. Examples include anxiety, distractions, coping strategies, psychological and physical needs, office set-up, stress, and work motivation. This design allowed us to identify the variables that explained unique variance in well-being and productivity. Results include (1) the quality of social contacts predicted positively, and stress predicted an individual's well-being negatively when controlling for other variables consistently across both waves; (2) boredom and distractions predicted productivity negatively; (3) productivity was less strongly associated with all predictor variables at time two compared to time one, suggesting that software engineers adapted to the lockdown situation over time; and (4) longitudinal analyses did not provide evidence that any predictor variable causal explained variance in well-being and productivity. Overall, we conclude that working from home was per se not a significant challenge for software engineers.