cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An Efficient MN-Algorithm for Joint Source-Channel Coding
Creators: name: Kfir, Haggai
name: Shpilman, Eyal
name: Kanter, Ido
Publisher: name: arXiv
Year: 2004
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Belief Propagation (BP) decoding of LDPC codes is extended to the case of Joint Source-Channel coding. The uncompressed source is treated as a Markov process, characterized by a transition matrix, T, which is utilized as side information for the Joint scheme. The method is based on the ability to calculate a Dynamical Block Prior (DBP), for each decoded symbol separately, and re-estimate this prior after every iteration of the BP decoder. We demonstrate the implementation of this method using MacKay and Neel's LDPC algorithm over GF(q), and present simulation results indicating that the proposed scheme is comparable with Separation scheme, even when advanced compression algorithms (such as AC, PPM) are used. The extension to 2D (and higher) arrays of symbols is straight-forward. The possibility of using the proposed scheme without side information is briefly sketched.
Bayesian estimation of non-stationary Markov models combining micro and macro data
Creators: name: Storm, Hugo
name: Heckelei, Thomas
name: Storm, Hugo
name: Heckelei, Thomas
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agricultural and Food Policy
subject: Research Methods/ Statistical Methods
subject: Bayesian estimation
subject: Markov transitions
subject: prior information
subject: multinomial logit
subject: ordered multinomial logit

description: In this poster a Bayesian estimation framework for a non-stationary Markov model is developed for situations where sample data with observed transition between classes (micro data) and aggregate population shares (macro data) are available. Posterior distributions on transition probabilities are derived based on a micro based prior and a macro based Likelihood function thereby consistently combining previously separated approaches. Monte Carlo simulations for ordered and unordered Markov states show how observed micro transitions improve precision of posterior knowledge as the sample size increases.
Increasing the number of topological nodal lines in semimetals via uniaxial pressure
Creators: name: Fumega, Adolfo O.
name: Pardo, Victor
name: Cortijo, Alberto
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The application of pressure has been demonstrated to induce intriguing phase transitions in topological nodal-line semimetals. In this work we analyze how uniaxial pressure affects the topological character of BaSn2 , a Dirac nodal-line semimetal in the absence of spin-orbit coupling. Using calculations based on the density functional theory and a model tight-binding Hamiltonian, we find the emergence of a second nodal line for pressures higher than 4 GPa. We examine the topological features of both phases demonstrating that a nontrivial character is present in both of them. Thus, providing evidence of a topological-to-topological phase transition in which the number of topological nodal lines increases. The orbital overlap increase between Ba dxz and dyz orbitals and Sn pz orbitals and the preservation of crystal symmetries are found to be responsible for the advent of this transition. Furthermore, we pave the way to experimentally test this kind of transition by obtaining a topological relation between the zero-energy modes that arise in each phase when a magnetic field is applied.
Early reading correlates in language impairment (Newbury et al., 2020)
Creators: name: Newbury, Jayne
name: Justice, Laura M.
name: Jiang, Hui H.
name: Schmitt, Mary Beth
Publisher: name: ASHA journals
Year: 2020
Subjects: subject: Language
subject: 170299 Cognitive Science not elsewhere classified
subject: FOS: Psychology

description: Purpose: This article first aimed to examine the cognitive (rapid automatized naming, phonological awareness, working memory, nonverbal cognition, and language) correlates of reading difficulty in children with language impairment (LI). Second, we considered whether noncognitive (effortful control, social competence, and behavior problems) correlates offered any explanatory value above that of cognitive factors. Third, we examined whether home environment (specifically household organization and home learning environment) would offer an additional explanatory value.Method: The sample included 165 children in kindergarten and Grade 1 who were receiving intervention for LI in public schools. Standardized measures along with parent interviews/questionnaires were administered at the end of the school year.Results: Logistic regression models indicated the noncognitive factors added discriminatory value to that of cognitive factors in predicting reading difficulties, whereas household factors did not. In the final model using all 11 predictors, prediction accuracy was 88.7% for the typical reading group and 54.2% for the reading difficulty group, with an overall accuracy of 76.4%. Only phonological awareness and working memory significantly contributed to predicting reading group membership when measured in kindergarten and Grade 1.Conclusions: For this sample of children with LI, the most important predictors of reading were cognitive. The child’s behavior and social competence improved prediction to a limited but statistically significant degree, whereas home environment did not. Overall classification was low, as only half of the children with reading difficulties were correctly predicted. Important factors differentiating good and poor emergent readers with LI were not captured in this study.
Supplemental Material S1. HLE (Home Literacy Environment) items.
Newbury, J., Justice, L. M., Jiang, H. H., & Schmitt, M. B. (2020). Cognitive, non cognitive, and home environment correlates of reading difficulties in primary-grade students with language impairment. Journal of Speech, Language, and Hearing Research. Advance online publication. https://doi.org/10.1044/2020_JSLHR-19-00363
Ramsey-biased spectroscopy of superconducting qubits under dispersion
Creators: name: Zhang, Yan
name: Huan, Tiantian
name: Zhou, Ri-gui
name: Ian, Hou
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We proposed a spectroscopic method that extends Ramsey's atomic spectroscopy to detect the transition frequency of a qubit fabricated on a superconducting circuit. The method uses a multi-interval train of qubit biases to implement an alternate resonant and dispersive couplings to an incident probe field. The consequent absorption spectrum of the qubit has a narrower linewidth at its transition frequency than that obtained from constantly biasing the qubit to resonance while the middle dispersive evolution incurs only a negligible shift in detected frequency. Modeling on transmon qubits, we find that the linewidth reduction reaches 23% and Ramsey fringes are simultaneously suppressed at extreme duration ratio of dispersion over resonance for a double-resonance scheme. If the scheme is augmented by an extra resonance segment, a further 37% reduction can be achieved.
Gauge Theory Amplitudes, Scalar Graphs and Twistor Space
Creators: name: Khoze, Valentin V.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a remarkable new approach initiated by Cachazo, Svrcek and Witten for calculating gauge theory amplitudes. The formalism amounts to an effective scalar perturbation theory which in many cases offers a much simpler alternative to the usual Feynman diagrams for deriving $n$-point amplitudes in gauge theory. At tree level the formalism works in a generic gauge theory, with or without supersymmetry, and for a finite number of colours. There is also a growing evidence that the formalism works for loop amplitudes.
description: 37 pages. To appear in ``From Fields to Strings: Circumnavigating Theoretical Physics'', in memory of Ian Kogan
Megújulási kényszerhelyzet az agrár-felsőoktatásban
Creators: name: Kovacs, Janos
name: Kovacs, Janos
Publisher: name: Unknown
Year: 2008
Subjects: subject: Labor and Human Capital
subject: Teaching/Communication/Extension/Profession
subject: agrárszféra
subject: felsőoktatás
subject: gazdaság
subject: társadalom
subject: szakember
subject: agricultural sphere
subject: higher education
subject: economy
subject: society
subject: expert

description: A társadalom helyzete gazdasági teljesítőképességén nyugszik. Ezért olyan érdekrendszer szükséges, amely minden szinten – állami irányítás, intézmény, egyén, gazdasági, társadalmi szervezetek stb. – megkívánja a konstruktív hozzáállást. Kitől várhatja az agrártársadalom a megváltó ötleteket, ha nem az egyetemektől? Ahhoz viszont, hogy a szakemberek meg tudjanak felelni a holnap elvárásainak, az egyetemi képzést már ma korszerűsíteni, nemzetközi színvonalúvá szükséges tenni. A tényleges társadalmi igényeknek megfelelő szakember-kibocsátó kapacitás és a hatékonyságot szolgáló intézményi szerkezet kialakítása indokolt. Természetesen folytatható az elnapolási gyakorlat is, csakhogy a jelen tevékenysége adottságként jelentkezik már a közeljövőben. Nem téveszthető szem elől, hogy a mindenkori gazdasági helyzetek nem sorscsapásként, vagy a véletlen ajándékaként jönnek létre. A gazda gondossága a termésben mutatkozik meg, ami vagy örömre, vagy magyarázkodásra ad okot, de mindenképpen minősít. --------------------- A society’s situation depends on the productivity of its economy. Therefore, an interest system is needed that requires a constructive attitude at every level: state direction, institutional, individual, economic, social organisations, etc. From whom can agricultural society expect redeeming ideas if not from the universities? In order for the experts to be able to meet tomorrow’s expectations, university training needs to be modernised and raised to an international standard today, although in an structured manner. The capacity to produce the number of experts that society actually requires, and the development of an institutional structure that furthers effectiveness, are both required. Naturally, the practice of postponing things can also be continued, except that present-day actions become future characteristics. We should not lose sight of the fact that a given economic situation does not arise either as a stroke of fate nor as the gift of mere chance. The care taken by a farmer shows in his produce, giving rise to either happiness or excuses, but in either case it serves as a qualification.
ARTEMIS Observations of Plasma Waves in Laminar and Perturbed Interplanetary Shocks
Creators: name: Davis, L.
name: Cattell, C. A.
name: Wilson, L. B.
name: Cohen, Z. A.
name: Breneman, A. W.
name: Hanson, E. L. M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The 'Acceleration, Reconnection, Turbulence and Electrodynamics of the Moon's Interaction with the Sun' (ARTEMIS) mission provides a unique opportunity to study the structure of interplanetary shocks and the associated generation of plasma waves with frequencies between ~50-8000 Hz due to its long duration electric and magnetic field burst waveform captures. We compare wave properties and occurrence rates at 11 quasi-perpendicular interplanetary shocks with burst data within 10 minutes (~3200 proton gyroradii upstream, ~1900 downstream) of the shock ramp. A perturbed shock is defined as possessing a large amplitude whistler precursor in the quasi-static magnetic field with an amplitude greater than 1/3 the difference between the upstream and downstream average magnetic field magnitudes; laminar shocks lack these large precursors and have a smooth, step function-like transition. In addition to wave modes previously observed, including ion acoustic, whistler, and electrostatic solitary waves, waves in the ion acoustic frequency range that show rapid temporal frequency change are common. The ramp region of the two laminar shocks with burst data in the ramp contained a wide range of large amplitude wave modes whereas the one perturbed shock with ramp burst data contained no such waves. Energy dissipation through wave-particle interactions is more prominent in these laminar shocks than the perturbed shock. The wave occurrence rates for laminar shocks are higher in the transition region, especially the ramp, than downstream. Perturbed shocks have approximately 2-3 times the wave occurrence rate downstream than laminar shocks.
BC-SIM-TR-038 SIMBIO-SYS ICO#04b Interchannel Test Report
Creators: name: Zusi, Michele
name: Simioni, Emanuele
name: Vincenzo, Della Corte
name: Andrea, Cicchetti
name: Politi, Romolo
name: Cremonese, Gabriele
name: Capaccioni, Fabrizio
name: Doressoundiram, Alain
name: Palumbo, Pasquale
name: Re, Cristina
name: Vincendon, Mathieu
Publisher: name: Zenodo
Year: 2024
Subjects: SIMBIO-SYS
Space Instrumentatation
Instrument Checkout
BepiColombo
Ground Segment

description: This document contains the results and the discussion on the interchannel tests performed during the Instrument check Out 04bis (ICO#04b) for the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO-SYS) described in [RD.1]. The ICO#04b was requested by the SIMBIO-SYS team to repeat the instruments not completely executed during ICO#04 tests [RD.2]. In particular, SIMBIO-SYS repeated the Interchannel test performed during previous ICO04 [RD.3] but limited to HRIC and STC Channels.
Role of Count de Grieux in J. Massenet’s "Manon"
Creators: name: Welsh, Justin Joseph
Publisher: name: University of British Columbia
Year: 2009

description: The thesis for the Master of Music degree in Opera consists of the performance of a major role in one full opera production in the first or second year. I performed role of Count De Grieux in Jules Massenet's Manon on the 6th of March 2004. For this role, I had to present myself as an older gentleman of a distinguished class. Since, I myself am still a young man of 23, I had to use my imagination, stage experience and technique to give a great portrayal of this middle-aged gentleman. Through my training, voice color and stature, I was able to give the audience the idea of myself being the significant father of one of the main characters. Even though I am using the role of Count De Grieux as my thesis, during rehearsals and production I also had to play another character that was completely the opposite. The Count could be considered extremely serious and sure of himself in his ways and virtues. However, the other character that I was required to play, Lescaut, cousin of Manon, could be interpreted as careless, reckless and a man of the world. Since these are not the virtues of such a man as the Count I had the unique challenge of separating the two mentalities and voice colors even though they were the same voice type. The Count must have a strong, powerful even commanding voice to show his quality and status. Lescaut however is more laid back must be portrayed in a more easy going manner. With this problem of double role, it made my thesis role of the Count more challenging and gave me an opportunity express my talent and ingenuity.
Tanácsadó szolgálat a zöldenergia hazai térnyeréséért
Creators: name: Gergely, Sandor
name: Gergely, Sandor
Publisher: name: Unknown
Year: 2008
Subjects: subject: Resource /Energy Economics and Policy
subject: Teaching/Communication/Extension/Profession
subject: primer energia
subject: zöldenergia
subject: termelői érdekű tanácsadás
subject: tanácsadási módszerek
subject: műszaki tanácsadás
subject: primary energy
subject: green power
subject: producer-oriented consultancy
subject: consultancy methods
subject: technical consultancy

description: A hazai zöldenergia-hordozó termelés és hasznosítás olyan lehetőség, amelynek kiaknázása hozzájárulhat hazánk energiaimport-függőségének csökkentéséhez, miközben segíti a kedvezőtlen szociális és termőhelyi viszonyok között élő gazdálkodókat és a lakosságot egy új jövedelemszerzési forráshoz való hozzájutásban. A hatékony zöldenergia-hordozó termelés és felhasználás olyan új tudás megszervezését és gyakorlati alkalmazását teszi szükségessé, amelynek közvetítésére adekvát szervezeti rendszer keretében működő Zöldenergia Tanácsadó Szolgálatot (ZETA) érdemes létrehozni és működtetni. A ZETA termelői érdekű tanácsadó szolgálat, amely a zöldenergia-termelők és -szolgáltatók hatékonyabb tevékenységét hivatott szolgálni – a vállalkozások különböző élethelyzeteihez igazított módon. A ZETA finanszírozása az első években hazai állami forrásokból, EU-alapokból, az igénybevevők befizetéseiből történik. Ezek a finanszírozási arányok a ZETA szolgáltatási palettájának gazdagodásával párhuzamosan egyre inkább a zöldenergia-termelők és -szolgáltatók javára fognak változni. ----------------- Exploiting the opportunity for domestic green power production and utilisation could contribute to a reduction in Hungary’s dependence on energy imports, while helping farmers and inhabitants living in disadvantageous social and production circumstances to access a new source of income generation. Effective production and utilisation of biomass requires the organisation and practical application of a knowledge, the transmission of which would best be served by the establishment and operation of a Green Power Consultancy Service (ZETA), operating within the framework of an adequate organisational system. ZETA would be a producer-oriented consultancy service, dedicated to serving the increased effectiveness of biomass producers and service-providers – in a manner that takes into account the businesses’ differing situations. In the early years, ZETA would be financed from Hungarian state resources, EU funds and user subscriptions. In tandem with an expansion in the range of services offered by ZETA, a greater share of its financing could be borne by the biomass producers and service-providers.
A mathematical finance approach to the stochastic and intermittent viscosity fluctuations in living cells
Creators: name: Bostoen, Claude L.
name: Berret, Jean-François
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Biological Physics (physics.bio-ph)
subject: Cell Behavior (q-bio.CB)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Here we report on the viscosity of eukaryotic living cells as a function of the time, and on the application of stochastic models to analyze its temporal fluctuations. The viscoelastic properties of NIH/3T3 fibroblastic cells are investigated using an active microrheological technique, where magnetic wires, embedded into cells, are being actuated remotely. The data reveal anomalous transient responses characterized by intermittent phases of slow and fast rotation, revealing significant fluctuations. The time dependent viscosity is analyzed from a time series perspective by computing the autocorrelation functions and the variograms, two functions used to describe stochastic processes in mathematical finance. The resulting analysis gives evidence of a sub-diffusive mean-reverting process characterized by an autoregressive coefficient lower than 1. It also shows the existence of specific cellular times in the ranges 1 - 10 s and 100 - 200 s, not previously disclosed. The shorter time is found being related to the internal relaxation time of the cytoplasm. To our knowledge, this is the first time that similarities are established between the properties of time series describing the intracellular metabolism and statistical results from mathematical finance. The current approach could be exploited to reveal hidden features from biological complex systems, or determine new biomarkers of cellular metabolism.
description: 19 pages, 8 figures, 3 tables
SIMBIO-SYS Instrument CheckOut #02 Test Report
Creators: name: ZUSI, MICHELE
name: SIMIONI, EMANUELE
name: POLITI, ROMOLO
name: CAPRIA, MARIA TERESA
name: CAPACCIONI, FABRIZIO
name: Doressoundiram, Alain
name: PALUMBO, PASQUALE
name: Vincendon, Mathieu
name: CREMONESE, Gabriele
Publisher: name: IAPS Roma
Year: 2022

description: Alla mia splendida famiglia e a Silvio Biazzo.
description: This document will briefly report the results of the tests performed during the Instrument Checkout (ICO) # 02 for the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO-SYS).
Tensor product structure of affine Demazure modules and limit constructions
Creators: name: Fourier, Ghislain
name: Littelmann, Peter
Publisher: name: arXiv
Year: 2004
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Let $\Lg$ be a simple complex Lie algebra, we denote by $\Lhg$ the corresponding affine Kac--Moody algebra. Let $Λ_0$ be the additional fundamental weight of $\Lhg$. For a dominant integral $\Lg$--coweight $\lam^\vee$, the Demazure submodule $V_{-\lam^\vee}(m\Lam_0)$ is a $\Lg$--module. For any partition of $\lam^\vee=\sum_j \lam_j^\vee$ as a sum of dominant integral $\Lg$--coweights, the Demazure module is (as $\Lg$--module) isomorphic to $\bigotimes_j V_{-\lam^\vee_j}(m\Lam_0)$. For the ``smallest'' case, $\lam^\vee=\om^\vee$ a fundamental coweight, we provide for $\Lg$ of classical type a decomposition of $V_{-\om^\vee}(m\Lam_0)$ into irreducible $\Lg$--modules, so this can be viewed as a natural generalization of the decomposition formulas in \cite{KMOTU} and \cite{Magyar}. A comparison with the $U_q(\Lg)$--characters of certain finite dimensional $U_q'(\Lhg)$--modules (Kirillov--Reshetikhin--modules) suggests furthermore that all quantized Demazure modules $V_{-\lam^\vee,q}(m\Lam_0)$ can be naturally endowed with the structure of a $U_q'(\Lhg)$--module. Such a structure suggests also a combinatorially interesting connection between the LS--path model for the Demazure module and the LS--path model for certain $U_q'(\Lhg)$--modules in \cite{NaitoSagaki}. For an integral dominant $\Lhg$--weight $Λ$ let $V(\Lam)$ be the corresponding irreducible $\Lhg$--representation. Using the tensor product decomposition for Demazure modules, we give a description of the $\Lg$--module structure of $V(\Lam)$ as a semi-infinite tensor product of finite dimensional $\Lg$--modules. The case of twisted affine Kac-Moody algebras can be treated in the same way, some details are worked out in the last section.
description: 24 pages, in the current version we added the case of twisted affine Kac--Moody algebras
Legyen mindenki jóllakott?
Creators: name: Romany, Pal
name: Romany, Pal
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: International Development
subject: élelmezés
subject: FAO
subject: kilábalási lehetőségek
subject: magyarországi tapasztalatok
subject: food supply
subject: recovering opportunities
subject: Hungarian experiences

description: Magyarországon a világélelmezés helyzetéről tanácskozott huszonöt évvel ezelőtt a Római Klub. A már akkor jelentkező világélelmezési válság kérdéseire többféle megoldást vázoltak fel a témakörrel foglalkozó szakemberek, melyek mind bíztatónak ígérkeztek, melyekből – szinte kivétel nélkül – csaknem semmi nem valósult meg. Magyarország évtizedeken át nemcsak helytállt az élelmezési versenyfutásban, hanem olyan tapasztalatokat is szerzett, melyek a mostani „újabb keletű” világélelmezési válságban is hasznosíthatók. --------------------- The Club of Rome organised a meeting about world food supply in Hungary 25 years ago. The experts proposed several solutions to alleviate world food crisis which seemed to be promising, nevertheless they–almost without exception-have not been realized. Hungary not only has stood its ground in the world-wide competition of food supply for decades but has also got experiences which can be utilized in the recent world food crisis as well.
Közép-szigetköz állattenyésztésének helyzete és fejlesztése
Creators: name: Horvath, Eszter
name: Horvath, Eszter
Publisher: name: Unknown
Year: 2008
Subjects: subject: Community/Rural/Urban Development
subject: Livestock Production/Industries
subject: Szigetköz
subject: állati termék
subject: modellalkotási eljárások
subject: vidékfejlesztési stratégia
subject: fejleszthető területek
subject: region Szigetköz
subject: livestock products
subject: modelling procedures
subject: rural development strategy
subject: prosperous areas

description: A Szigetközben a legnagyobb értéket maga a táj képviseli, melynek megőrzése, fenntartása, a valamikori híres állattenyésztés újraélesztése különösen nagy feladatot ró a mezőgazdaságra, a vállalkozókra. A vizsgálatok középpontjába a szigetközi állatitermék-termékpályája állt, továbbá a térség állatitermék-előállításának vidékfejlesztésben betölthető szerepe és lehetőségeinek feltárása szerepelt. A vizsgálati eredményeket helyzetértékelési modell foglalta össze, mely szerint csökkent az állatállomány, a gazdaságok száma és a kibocsátott állati termékek mennyisége, korszerűtlen a technológia és technika, a vertikális termékpálya hiányos és feszültségekkel terhelt, a gyepgazdálkodás lehetőségei kiaknázatlanok, a gazdálkodók termelési motiváltsága alacsony színvonalú. E zek figyelembevételével került sor a megvalósítás lépéseit tartalmazó feladatmeghatározási modell kidolgozására, amely számol a térségi vidékfejlesztési szervezetek törekvéseivel, azok eddigi eredményeivel, valamint a mezőgazdaság tájmegőrző, vidék- és falufejlesztésben betölthető sokrétű szerepével a Közép-Szigetközben. ----------------------- In the Szigetköz region its landscape is considered as having the highest value, conservation and sustainable cultivation of this landscape as well as reviving of its once famous animal breeding is a major task for agriculture and enterpreneurs. Our analysis focused on the livestock chain and recovering of its potential role in rural development. Results of the analysis of initial situation have been synthetised by a model. The main statements were the followings. Number of farms, animals and livestock output decreased. Production technologies are outdated, utilization of pastures and producer’s motivation are low, among vertical elements of the livestock chain there have been imperfections and tense situations. These statements were taken into consideration in development of the second model which served for determination of future tasks. This model contains aspirations and hitherto results of rural development organizations as well as multifunctional role of agriculture which it fulfils in landscape conservation and rural development of this region.
BC-SIM-TR-029 SIMBIO-SYS ICO#03 Test Report
Creators: name: ZUSI, MICHELE
name: SIMIONI, Emanuele
name: POLITI, ROMOLO
name: CREMONESE, Gabriele
name: CAPACCIONI, FABRIZIO
name: Doressoundiram, Alain
name: PALUMBO, PASQUALE
name: RE, Cristina
name: Vincendon, Mathieu
Publisher: name: IAPS Roma
Year: 2022

description: Alla mia meravigliosa famiglia
description: This document will briefly report the results of the tests performed during the Instrument Checkout (ICO) # 03 for the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO-SYS).
An Empirical Characterization of Fair Machine Learning For Clinical Risk Prediction
Creators: name: Pfohl, Stephen R.
name: Foryciarz, Agata
name: Shah, Nigam H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Computers and Society (cs.CY)
subject: Machine Learning (cs.LG)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: The use of machine learning to guide clinical decision making has the potential to worsen existing health disparities. Several recent works frame the problem as that of algorithmic fairness, a framework that has attracted considerable attention and criticism. However, the appropriateness of this framework is unclear due to both ethical as well as technical considerations, the latter of which include trade-offs between measures of fairness and model performance that are not well-understood for predictive models of clinical outcomes. To inform the ongoing debate, we conduct an empirical study to characterize the impact of penalizing group fairness violations on an array of measures of model performance and group fairness. We repeat the analyses across multiple observational healthcare databases, clinical outcomes, and sensitive attributes. We find that procedures that penalize differences between the distributions of predictions across groups induce nearly-universal degradation of multiple performance metrics within groups. On examining the secondary impact of these procedures, we observe heterogeneity of the effect of these procedures on measures of fairness in calibration and ranking across experimental conditions. Beyond the reported trade-offs, we emphasize that analyses of algorithmic fairness in healthcare lack the contextual grounding and causal awareness necessary to reason about the mechanisms that lead to health disparities, as well as about the potential of algorithmic fairness methods to counteract those mechanisms. In light of these limitations, we encourage researchers building predictive models for clinical use to step outside the algorithmic fairness frame and engage critically with the broader sociotechnical context surrounding the use of machine learning in healthcare.
description: Published in the Journal of Biomedical Informatics (https://doi.org/10.1016/j.jbi.2020.103621). Version 3 updates acknowledgements and fixes typos
Transgender voice–gender incongruence (Kennedy & Thibeault, 2020)
Creators: name: Kennedy, Evan
name: Thibeault, Susan L.
Publisher: name: ASHA journals
Year: 2020
Subjects: subject: 170204 Linguistic Processes (incl. Speech Production and Comprehension)
subject: FOS: Psychology
subject: Gender studies

description: Purpose: Voice–gender incongruence has predominantly been investigated in the past through the perspective of feminine-identifying individuals seeking feminine-sounding voices. The purpose of this study was to determine the prevalence of self-reported voice–gender incongruence in the transgender, nonbinary, and gender-nonconforming (TNG) community and to describe health information–seeking behaviors exhibited when individuals attempt to address their voice and communication challenges.Method: An online survey was designed with questions targeting the self-reported prevalence of voice–gender incongruence, characteristics of this complaint, and health information–seeking behaviors. Valid standardized measures, including the Voice Handicap Index and the Barriers to Help-Seeking Scale, were also included.Results: Four hundred five participants were sorted into three groups based on gender identity (feminine, masculine, gender-neutral) to facilitate comparative analysis. Ninety-six percent of participants reported the experience of voice–gender incongruence in the past, and 88% reported that they currently experience voice–gender incongruence. There were no significant differences in reported voice–gender incongruence between groups. Voice Handicap Index scores were significantly higher for those who currently experience voice–gender incongruence (p < .0001) and reflected differences in how much this concern bothers participants, as rated on a Likert scale, ranging from no problem to a very big problem (p < .0001). Barriers to Help-Seeking Scale scores indicated that the masculine group perceived greater barriers to seeking help as compared to the feminine group.Discussion: We present foundational evidence for the prevalence of voice–gender incongruence within the TNG community and barriers encountered when individuals attempt to access care. Future work should investigate the specific needs of subgroups within the TNG community and whether those who desire feminine-, masculine-, and/or androgynous-sounding voices experience voice–gender incongruence and access to services differently.
Supplemental Material S1. Participant survey.
Kennedy, E., & Thibeault, S. L. (2020). Voice–gender incongruence and voice health information–seeking behaviors in the transgender community. American Journal of Speech-Language Pathology. Advance online publication. https://doi.org/10.1044/2020_AJSLP-19-00188
BC-SIM-TR-005 SIMBIO-SYS NECP Test Report
Creators: name: ZUSI, MICHELE
name: SIMIONI, EMANUELE
name: POLITI, ROMOLO
name: CAPRIA, MARIA TERESA
name: CAPACCIONI, FABRIZIO
name: Doressoundiram, A.
name: PALUMBO, PASQUALE
name: Vincedon, M.
name: CREMONESE, Gabriele
Publisher: name: IAPS Roma
Year: 2020

description: Alla mia splendida famiglia.
description: This document will briefly report the results of the tests performed during the Near Earth Commissioning Phase (NECP).
Sectoral mobility of production factors in agriculture and predictions for the future
Creators: name: Vandermeulen, Valerie
name: Mettepenningen, Evy
name: Calus, Mieke
name: Vandermeulen, Valerie
name: Mettepenningen, Evy
name: Calus, Mieke
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Land Economics/Use
subject: Factor mobility
subject: Agricultural sectors
subject: Markov analysis
subject: Structural change

description: European agriculture has been characterized by a shift in structure towards larger farms with less labour employed. Within the current article we investigate the case of Flanders, a region in Belgium, and try to define what the sectoral shifts of labour and land have been in the past. Thereby we try to analyze and quantify structural change in Flemish agriculture, and to make projections for the future. The research was based on a Markov analysis of secondary census data, complemented by primary data obtained through a survey. In general it seems that structural change in Flemish agriculture follows the general trend of farms getting bigger, more specialized and employing more people per farm. This h
Environmental and production cost impacts of no-till: Estimates from observed behaviour
Creators: name: Laukkanen, Marita
name: Nauges, Celine
name: Laukkanen, Marita
name: Nauges, Celine
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Land Economics/Use
subject: conservation agriculture
subject: no-till
subject: technology adoption

description: No-till has been promoted as a cultivation method that reduces both production costs and the environmental impacts of farming relative to conventional tillage. Using farm-level data from Finland, we show that no-till has no statistically significant effect on total variable costs but that it increases the use of plant protection products and fertilizers, and decreases the use of labor. An environmental impact simulation combining the results on input use with a nutrient and herbicide runoff model predicts that no-till produces environmental benefits on highly erodible land, but may be even detrimental to the environment in average conditions.
Phenological, growth and reproductive responses to climate variability and experimental warming in eight arctic plant species
Creators: name: Clark, Karin M.
Publisher: name: University of British Columbia
Year: 2009

description: Phenology, growth and reproductive measures were taken on a suite of eight low arctic plant species, Oxytropis nigrescens (Pall.) Fischer, Ledum decumbens (Ait.) Lodd., Vaccinium Vitis-idaea L. var. Minus Lodd., Betula glandulosa Michx., Salix L. spp., Saxifraga tricuspidata Rottb., Eriophorum vaginatum L. and Carex aquatilis Wahlenb. var. stans (Drej.) Boott, over a period of six years (1997-2002) at the Tundra Ecosystem Research Station, Daring Lake, Northwest Territories, Canada. These data were related to climatic conditions and measures of previous season's allocation using Canonical Correlation Analysis (CANCOR). Temperature and snowmelt date were the climatic variables most correlated with spring phenology; whereas, temperature, rainfall and snowmelt are most correlated with growth and reproduction. The spring phenology of vernal flowering plants was less influenced by snowmelt than that of aestival flowering plants. Most species showed decreased time to flower with warmer temperatures yet snowmelt and precipitation patterns modified responses. Climatic relationships to growth and reproductive responses were species specific. Two of the study species, B. glandulosa, and C. aquatilis var. stans, showed negative correlations between the previous and current year's allocation to growth and reproduction. Correlations between previous season's reproductive investment and spring phenology were apparent in four of the study species, O. nigrescens, Salix spp., E. vaginatum and S. tricuspidata, A subset of three of the species, L. decumbens, V. Vitis-idaea and E. vaginatum was experimentally warmed using open-topped chambers for two years (2001-2002). Phenological, growth and reproductive responses were compared to unwarmed plots. Under warmer temperatures spring phenology was advanced such that the time from snowmelt to flowering contracted approximately five days for all species. However, timing of the end of the flowering phase remained unchanged. Growth of the two evergreen shrubs increased with warming while that of the sedge was decreased. Reproductive effort and success were essentially unchanged except for V. Vitis-idaea where number of flowers was reduced in the first year of warming. In general, the phenological results of the experimental manipulation confirmed those of the observational data; prefloration interval was shortened with increased temperature. The experimental and observational methods of study proved to be complementary approaches to understanding the complex responses of plants to a changing climate.
Heating groups and clusters of galaxies: the role of AGN jets
Creators: name: Zanni, C.
name: Murante, G.
name: Bodo, G.
name: Massaglia, S.
name: Rossi, P.
name: Ferrari, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: X-Ray observations of groups and clusters of galaxies show that the Intra-Cluster Medium (ICM) in their cores is hotter than expected from cosmological numerical simulations of cluster formation which include star formation, radiative cooling and SN feedback. We investigate the effect of the injection of supersonic AGN jets into the ICM using axisymmetric hydrodynamical numerical simulations. A simple model for the ICM, describing the radial properties of gas and the gravitational potential in cosmological N-Body+SPH simulations of one cluster and three groups of galaxies at redshift z=0, is obtained and used to set the environment in which the jets are injected. We varied the kinetic power of the jet and the emission-weighted X-Ray temperature of the ICM. The jets transfer their energy to the ICM mainly by the effects of their terminal shocks. A high fraction of the injected energy can be deposited through irreversible processes in the cluster gas, up to 75% in our simulations. We show how one single, powerful jet can reconcile the predicted X-Ray properties of small groups, e.g. the Lx-Tx relation, with observations. We argue that the interaction between AGN jets and galaxy groups and cluster atmospheres is a viable feedback mechanism.
description: 18 pages, 14 figures, to appear on Astronomy and Astrophysics
BC-SIM-TR-010 SIMBIO-SYS Instrument delta NECP Test Report
Creators: name: ZUSI, MICHELE
name: SIMIONI, EMANUELE
name: POLITI, ROMOLO
name: CAPRIA, MARIA TERESA
name: CAPACCIONI, FABRIZIO
name: Doressoundiram, Alain
name: PALUMBO, PASQUALE
name: Vincendon, Mathieu
name: CREMONESE, Gabriele
Publisher: name: IAPS Roma
Year: 2021

description: In this document we briefly report the tests performed during the delta- Near Earth Commissioning Phase (NECP) for the Spectrometers and Imagers for MPO BepiColombo Integrated Observatory SYStem (SIMBIO- SYS) and discuss the obtained results.
Some like to join, others to deliver. An econometric analysis of farmers' relationships with agricultural co-operatives
Creators: name: Pascucci, Stefano
name: Gardebroek, Cornelis
name: Pascucci, Stefano
name: Gardebroek, Cornelis
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Farm Management
subject: Land Economics/Use
subject: Co-operatives
subject: New Institutional Economics
subject: bivariate probit
subject: Italy

description: In many European countries, farmers are a member of a processing or marketing co-operative, and most of these farmers also deliver their products to that co-operative. However, an extensive dataset of Italian farmers shows that not all members deliver to their co-op, and that there are also non-members that deliver. Using theoretical arguments from the New Institutional Economics literature, a bivariate probit model is estimated to explain co-op membership and delivery jointly. Results show that membership and delivering are indeed related, but also that different factors influence farmers’ decisions on membership and delivery.
$p$-Laplace Operators for Oriented Hypergraphs
Creators: name: Jost, Jürgen
name: Mulas, Raffaella
name: Zhang, Dong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: The $p$-Laplacian for graphs, as well as the vertex Laplace operator and the hyperedge Laplace operator for the general setting of oriented hypergraphs, are generalized. In particular, both a vertex $p$-Laplacian and a hyperedge $p$-Laplacian are defined for oriented hypergraphs, for all $p\geq 1$. Several spectral properties of these operators are investigated.
description: Vietnam Journal of Mathematics, To appear (2022)
Enhanced Septahedral Ordering in Cold Lennard-Jones Fluids
Creators: name: Whitford, Paul C.
name: Phillies, George D. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report molecular dynamics calculations on two-component, cold (1.2 > T > 0.56 in natural units), three-dimensional Lennard-Jones fluids. Our system was small (7813 A, 7812 B particles), dense (N/V = 1.30), and distinctly finite (L \times L \times L cube, periodic boundary conditions, with L=22.96 σ_AA), σ_AA being the range of the $AA$ interaction in the Lennard-Jones potential U_{ij} = 4 ε[(σ_ij/r)^12 -(σ_ij/r)^6]. We calculated spherical harmonic components Q_LM for the density of particles in the first coordination shell of each particle, as well as their spherical invariants , time-correlation functions and wavelet density decompositions. The spherical invariants show that non-crystalline septahedral ordering is important, especially at low temperature. While could arise from icosahedral ordering, its behavior so closely tracks that of the nonicosahedral that alternative origins for need to be considered. Time correlation functions of spherical harmonic components are bimodal, with a faster temperature-independent mode and a slow, strongly temperature-dependent mode. Microviscosities inferred from mean-square particle displacements are exponential in static amplitude , and track closely in temperature dependence the orientation density slow mode lifetime. Volume wavelet decompositions show that when T is reduced, the correlation length of increases, especially below T=0.7, but the correlation length of is independent of T.
description: 14 pages, 19 figures
The FaceChannel: A Light-weight Deep Neural Network for Facial Expression Recognition
Creators: name: Barros, Pablo
name: Churamani, Nikhil
name: Sciutti, Alessandra
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Current state-of-the-art models for automatic FER are based on very deep neural networks that are difficult to train. This makes it challenging to adapt these models to changing conditions, a requirement from FER models given the subjective nature of affect perception and understanding. In this paper, we address this problem by formalizing the FaceChannel, a light-weight neural network that has much fewer parameters than common deep neural networks. We perform a series of experiments on different benchmark datasets to demonstrate how the FaceChannel achieves a comparable, if not better, performance, as compared to the current state-of-the-art in FER.
description: Accepted at the Workshop on Affect Recognition in-the-wild: Uni/Multi-Modal Analysis & VA-AU-Expression Challenges, FG2020
Contracts, payment delays and firm growth: Evidence from Bulgarian agriculture
Creators: name: Swinnen, Johan F.M.
name: Van Herck, Kristine
name: Swinnen, Johan F.M.
name: Van Herck, Kristine
Publisher: name: Unknown
Year: 2010
Subjects: Agricultural and Food Policy
Farm Management
Land Economics/Use

description: The transition of a centrally planned to a more market economy provides a natural Experiment on the role of institutions and exchange in economic growth. This paper uses a unique dataset based on a survey of 305 dairy producing and supplying households in Bulgaria to analyze the impact of late payments for delivered products and farm assistance programs. The results of the dynamic panel analysis indicate that late payments have a negative influence on farm growth, while contracting with interlinked farm assistance programs, had a positive effect on farm growth.
Structural changes in lignin of thermally treated eucalyptus wood
Creators: name: Lourenço, Ana
name: Araújo, Solange
name: Gominho, Jorge
name: Pereira, Helena
name: Evtuguin, Dmitry
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Inorganic Chemistry

description: Changes in the lignin structure of eight eucalypt species (E. botryoides, E. globulus, E. grandis, E. maculata, E. propinqua, E. rudis, E. saligna, and E. viminalis) upon mild thermal treatment, where the temperature was gradually raised from 160 to 230 °C over 3 h, were studied by solid-state carbon nuclear magnetic resonance (13C NMR) and after lignin isolation from the wood by acidolysis employing liquid-state 1D and 2D NMR techniques. The molecular weight of the isolated lignins was assessed by size exclusion chromatography (SEC) and their composition by analytic pyrolysis coupled with gas chromatography and mass spectrometry (Py-GC/MS). The thermal treatment induced in lignin partial demethylation (up to ca. 30% from total) and a remarkable reduction in β-O-4 structures (up to ca. 60%), in an extent depending on the ratio of syringyl and guaiacyl units of the specific lignins. The lignin molecular weight reduced only ca. 25% under the thermal treatment due to the likely occurrence of condensation reactions by homolytic and heterolytic mechanisms. The noticeable increase in phenylcoumaran (β-5) and pinoresinol/syringaresinol (β-β) structures in lignin after thermal treatment was tentatively explained by their relative thermal resistance and by newly formed structures as the result of radical coupling reactions occurred during homolytic dissociation of the β-O-4 linkages. Lignins in thermally treated wood contained more than twice phenolic hydroxyls and more aliphatic carboxyl groups than lignins in untreated wood.