cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
INGLIZ VA O'ZBEK TILLARIDA EKOTIZIMLARNING MILLIY-MADANIY XUSUSIYATLARI
Creators: name: Ruzikulova, Marjona
Publisher: name: Zenodo
Year: 2025

description: Ekotizim — bu aloqalar o'zgaruvchan va murakkabdir, bu tabiat va uning tarkibiy qismlarining o'zaro aloqada bo'lgan tizimi bo'lib. Insonlar va ularning jamiyatlaridagi o'zaro munosabatlar va madaniy an'analarga ham taalluqli, ekotizim atamasi asosan biologiya va ekologiya fanlarida ishlatilsa ham. Qadriyatlari va ekologik ongining shakllanishiga katta ta'sir ko‘rsatadi, tildagi ifodalanishi xalqning tabiiy olamga bo‘lgan munosabati. o'zining tarixiy tajribasi, tabiatga bo‘lgan qarashlari, va zamonaviy ekologik muammolar bilan bog‘liq o‘ziga xos xususiyatlarni, o‘zida aks ettiradi, har bir til va madaniyat.Ingliz tili dunyo miqyosida dominant tildan biri bo‘lib, ekologik muammolarni global darajada yoritishda muhim rol o‘ynaydi. Shu bilan birga, o'zbek tili, milliy madaniyat va qadriyatlarni o'z ichiga olgan, tabiat va uning resurslariga nisbatan hurmatni ta'kidlaydigan til sifatida ajralib turadi. Ekotizimlarning milliy-madaniy xususiyatlari tildagi ko‘plab iboralar, atamalar va tasavvurlar orqali ifodalanadi. Bundan tashqari  ingliz va o'zbek tillarida ekotizimning milliy-madaniy xususiyatlarini solishtiramiz va har bir tilning ekologik qarashlarini chuqur tahlil qilamiz.
Green's function technique for studying electron flow in 2D mesoscopic samples
Creators: name: Metalidis, G.
name: Bruno, P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In a recent series of scanning probe experiments, it became possible to visualize local electron flow in a two-dimensional electron gas. In this paper, a Green's function technique is presented that enables efficient calculation of the quantity measured in such experiments. Efficient means that the computational effort scales like $M^3 N$ ($M$ is the width of the tight-binding lattice used, and $N$ is its length), which is a factor $MN$ better than the standard recursive technique for the same problem. Moreover, within our numerical framework it is also possible to calculate (with the same computational effort $M^3 N$) the local density of states, the electron density, and the current distribution in the sample, which are not accessible with the standard recursive method. Furthermore, an imaging method is discussed where the scanning tip can be used to measure the local chemical potential. The numerical technique is used to study electron flow through a quantum point contact. All features seen in experiments on this system are reproduced and a new interference effect is observed resulting from the crossing of coherent beams of electron flow.
description: 11 pages, 8 figures, submitted to Phys. Rev. B, completely revised version, with additional results
Measuring farmers’ risk aversion: the unknown properties of the value function
Creators: name: Cao, Ruixuan
name: Carpentier, Alain
name: Gohin, Alexandre
name: Cao, Ruixuan
name: Carpentier, Alain
name: Gohin, Alexandre
Publisher: name: Unknown
Year: 2011
Subjects: Risk and Uncertainty

description: We argue in this paper that available econometric estimates of farmers’ risk aversion do not measure true farmers’ preferences towards risky outcomes. Available analyses are mostly of static nature and indeed measure the parameters of the synthetic optimal value function rather than the deep parameters of the utility functions. We derive analytical and empirical results in a simple dynamic and stochastic framework showing that that there is not a simple relationship between utility functions and value functions when agents have many decision variables. In particular we find that the value function does not necessarily exhibit DARA when the instantaneous utility function satisfies DARA and conversely. We recommend performing dynamic econometric estimation with at least farm production and consumption data.
Preliminary map, Queen Charlotte Islands British Columbia Department of Lands ; G.G. Aitken, Chief Geographer
Creators: name: British Columbia. Department Of Lands
Publisher: name: [Victoria] : Dept. of Lands, 1927.
Year: 2015

description: 1:253,440

Relief shown by contours and spot heights.

"Map No. 2F."

"Land series."

Inset: Index map, Pre-emptor's series and Land series.

Includes detailed text on economic and statistical information, and "marketing diagram."

Shows land and timber surveys, reserves, and lands available for pre-emption.
EU-wide Distributional Effects of EU Direct Payments Harmonization analyzed with CAPRI
Creators: name: Gocht, Alexander
name: Britz, Wolfgang
name: Ciaian, Pavel
name: Gomez Y Paloma, Sergio
name: Gocht, Alexander
name: Britz, Wolfgang
name: Ciaian, Pavel
name: Gomez Y Paloma, Sergio
Publisher: name: Unknown
Year: 2011
Subjects: subject: International Relations/Trade
subject: distributional effects
subject: SPS
subject: flat-rate payment
subject: CAP reform
subject: farm level model
subject: CAPRI farm type layer

description: We argue in this paper that available econometric estimates of farmers’ risk aversion do not measure true farmers’ preferences towards risky outcomes. Available analyses are mostly of static nature and indeed measure the parameters of the synthetic optimal value function rather than the deep parameters of the utility functions. We derive analytical and empirical results in a simple dynamic and stochastic framework showing that that there is not a simple relationship between utility functions and value functions when agents have many decision variables. In particular we find that the value function does not necessarily exhibit DARA when the instantaneous utility function satisfies DARA and conversely. We recommend performing dynamic econometric estimation with at least farm production and consumption data.
Blind source separation of sparse sources with attenuations and delays : a novel approach for the under-determined case
Creators: name: Saab, Rayan
Publisher: name: University of British Columbia
Year: 2009

description: Separation of sources is an important problem in signal processing where one tries to extract two or more underlying signals from their recorded mixtures. Blind source separation is the problem of extracting sources armed only with the knowledge of the observable mixtures and necessarily, some assumptions on the underlying sources or their statistics. Applications of blind source separation abound, from EEG and fMRI in the field of neuroscience, to speech and audio recognition and separation, to face recognition, financial series analysis and communications. In this thesis we explore blind source separation in the case where there are more sources than available mixtures, i.e. the under-determined case. We take into account both attenuations and delays in the mixing process, utilizing sparsity of the sources for demixing. We provide the theoretical framework for source separation and present simulation results to validate our method. There are existing techniques that solve the blind source separation problem for instantaneous under-determined mixtures, and ones that solve the anechoic under-determined problem for two mixtures only. The proposed technique is novel in that it is the first to solve the blind source separation problem in a general anechoic setting where no restrictions are put on the number of mixtures, and no assumptions are made on the number of sources.
Effective medium theory of left-handed materials
Creators: name: Koschny, T.
name: Kafesaki, M.
name: Economou, E. N.
name: Soukoulis, C. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analyze the transmission and reflection data obtained through transfer matrix calculations on metamaterials of finite lengths, to determine their effective permittivity and permeability. Our study concerns metamaterial structures composed of periodic arrangements of wires, cut-wires, split ring resonators (SRRs), closed-SRRs, and both wires and SRRs. We find that the SRRs have a strong electric response, equivalent to that of cut-wires, which dominates the behavior of left-handed materials (LHM). Analytical expressions for the effective parameters of the different structures are given, which can be used to explain the transmission characteristics of LHMs. Of particular relevance is the criterion introduced by our studies to identify if an experimental transmission peak is left- or right-handed.
description: to be published in Phys. Rev. Lett
Digital twin for virtual certification of unmanned aircraft systems
Creators: name: Fakhraian, Elham
name: Aghezzaf, El-Houssaine
name: Semanjski, Ivana
Publisher: name: Zenodo
Year: 2023

description: In recent years, unmanned aircraft systems (UAS) operations have seen a remarkable surge, necessitating a robust regulatory framework to ensure safe operations. Operations in high-risk environments set higher requirements to overcome related risks such as collisions with civil aircraft, injuries, and accidents due to UAS operation errors. One of the possible solutions is to leverage digital twin (DT) technology. DT’s ability to design, build, and analyze procedures makes it one potential way to assist the certification process. The technological advancements of Digital Twins have made it possible to gain a deeper and more detailed understanding of how machines, products, and production processes function, and how they can be improved. Understanding the regulations governing the construction and operation of the product is essential in the certification process. A design tool that utilizes a digital twin to provide precise information on product configuration has the potential to assist the certification process. In the field of aerospace certification in the European Union (EU), while the traditional aviation industry has been subject to the framework of an international convention, it is fair to state that no such cohesive international standard or guidelines existed for civil drones till 2020. The regulation of unmanned aircraft systems with a maximum take-off mass of 150 kg was a matter for individual EU member states. Since 2020, the European Union drones’ legal framework is subjected to uniform regulation by European Union Aviation Safety Agency (EASA). This poster aims to provide an understanding of the Unmanned Aircraft System (UAS) European Union's legal framework and investigate the potential of utilizing digital twins to assist the certification process.
Additional file 3 of Birthweight: EN-BIRTH multi-country validation study
Creators: name: Kong, Stefanie
name: Day, Louise T.
name: Sojib Bin Zaman
name: Peven, Kimberly
name: Nahya Salim
name: Sunny, Avinash K.
name: Shamba, Donat
name: Rahman, Qazi Sadeq-Ur
name: Ashish, K.C.
name: Ruysen, Harriet
name: Shams El Arifeen
name: Mee, Paul
name: Gladstone, Miriam E.
name: Blencowe, Hannah
name: Lawn, Joy E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 3. STROBE statement.
Additional file 1 of Primary outcome reporting in adolescent depression clinical trials needs standardization
Creators: name: Monsour, Andrea
name: Mew, Emma J.
name: Patel, Sagar
name: Alyssandra Chee-A-Tow
name: Saeed, Leena
name: Santos, Lucia
name: Courtney, Darren B.
name: Watson, Priya N.
name: Suneeta Monga
name: Szatmari, Peter
name: Offringa, Martin
name: Butcher, Nancy J.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Table S1. Outcome reporting items removed from the comprehensive item checklist. Word document.
The magnetic field from a homogeneously magnetized cylindrical tile
Creators: name: Nielsen, K. K.
name: Bjørk, R.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The magnetic field of a homogeneously magnetized cylindrical tile geometry, i.e. an angular section of a finite hollow cylinder, is found. The field is expressed as the product between a tensor field describing the geometrical part of the problem and a column vector holding the magnetization of the tile. Outside the tile, the tensor is identical to the demagnetization tensor. We find that four components of the tensor, $N_{xy},N_{xz},N_{yz}$ and $N_{zy}$, can be expressed fully analytically, while the five remaining components, $N_{xx},N_{yx},N_{yy},N_{zx}$ and $N_{zz}$, contain integrals that have to be evaluated numerically. When evaluated numerically the tensor is symmetric. A comparison between the found solution, implemented in the open source magnetic framework MagTense, and a finite element calculation of the magnetic flux density of a cylindrical tile shows excellent agreement.
description: 8 pages, 3 figures
Additional file 4 of Birthweight: EN-BIRTH multi-country validation study
Creators: name: Kong, Stefanie
name: Day, Louise T.
name: Sojib Bin Zaman
name: Peven, Kimberly
name: Nahya Salim
name: Sunny, Avinash K.
name: Shamba, Donat
name: Rahman, Qazi Sadeq-Ur
name: Ashish, K.C.
name: Ruysen, Harriet
name: Shams El Arifeen
name: Mee, Paul
name: Gladstone, Miriam E.
name: Blencowe, Hannah
name: Lawn, Joy E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 4. EN-BIRTH data collection flow.
Covariants,joint invariants and the problem of equivalence in the invariant theory of Killing tensors defined in pseudo-Riemannian spaces of constant curvature
Creators: name: Smirnov, Roman G.
name: Yue, Jin
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 58J70,13A50,53B21

description: The invariant theory of Killing tensors (ITKT) is extended by introducing the new concepts of covariants and joint invariants of (product) vector spaces of Killing tensors defined in pseudo-Riemannian spaces of constant curvature. The covariants are employed to solve the problem of classification of the orthogonal coordinate webs generated by non-trivial Killing tensors of valence two defined in the Euclidean and Minkowski planes. Illustrative examples are provided.
description: 60 pages. to appear in J. Math. Phys
Diffuse Galactic Gamma-rays from star clusters
Creators: name: Nath, Biman B.
name: Eichler, David
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We demonstrate that young star clusters have a $γ$-ray surface brightness comparable to that of the diffuse Galactic emission (DGE), and estimate that their sky coverage in the direction of the inner Galaxy exceeds unity. We therefore suggest that they comprise a significant fraction of the DGE.
description: 5 pages, 1 figure, Accepted for publication in MNRAS Letters
Dose-dependent effects of estradiol on working memory and the phosphorylation of cAMP response element-binding protein
Creators: name: Sinopoli, Katia Joanne
Publisher: name: University of British Columbia
Year: 2009

description: Estradiol can influence a variety of physiological and psychological processes. This hormone has been shown to influence learning and memory processes. The effects of physiological levels of estradiol on spatial working memory performance were explored in Chapter 1. In Experiment 1, daily systemic estradiol or oil injections were administered to adult, ovariectomized female rats approximately 4 hours prior to the testing on a win-shift version of the radial arms maze. A high dose of estradiol (5 μg estradiol benzoate) enhanced acquisition of the task whereas a low dose (0.3 μg estradiol benzoate) impaired working memory performance. Experiment 2 was conducted to examine site-specific influences of estradiol on spatial working memory in well-trained rats. Saline and two doses of estradiol cyclodextrin (0.1 μg and 0.9 μg estradiol/0.5 μL saline) were infused into the prelimbic region of the prefrontal cortex and dorsal hippocampus 40 minutes prior to testing on the win-shift task. The higher dose of estradiol facilitated working memory when infused into the prelimbic region, whereas lower doses of estradiol facilitated performance when infused into the hippocampus. Working memory performance was significantly impaired 24 hours after infusions of estradiol into the dorsal hippocampus relative to saline infusions. These data provide further evidence for the idea that estradiol can dose-dependently alter memory processes, and also suggest that the facilitation and impairment of working memory by estradiol is site- and time-specific. Chapter 2 sought to elucidate the role of long-term physiological levels of estradiol on the phosphorylation of cAMP response binding element (pCREB); a transcription factor related to cognitive processes. Ovariectomized rats were administered oil, high estradiol (5 μg estradiol benzoate) or low estradiol (0.3 μg estradiol benzoate) for 17 consecutive days. Neither dose of estradiol significantly altered the number of pCREB-positive cells in the dorsal CA1, CA3 or in the prelimbic region relative to control levels. There was however a time of day effect, with animals perfused 40 minutes after the last injection exhibiting more pCREB-positive cells than animals perfused 4 hours after the last injection. Future research is required to clarify the role that estradiol plays in the activation of CRJEB.
Piecewise continuous partition function method in the theory of wave perturbations of inhomogeneous gas
Creators: name: Vereshchagin, D. A.
name: Leble, S. B.
name: Solovchuk, M. A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: The problem of wave disturbance propagation in rarefied gas in gravity field is explored. The system of hydrodynamic-type equations for a stratified gas in gravity field is derived from BGK equation by method of piecewise continuous partition function. The obtained system of the equations generalizes the Navier-Stokes at arbitrary density (Knudsen numbers). The verification of the model is made for a limiting case of a homogeneous medium. Results are in the good agreement with experiment and former theories at arbitrary Knudsen numbers.
description: 12 pages, 5 figures
Introduction: Forest Health Monitoring: National Status, Trends, and Analysis 2016
Creators: name: Potter, Kevin
Publisher: name: figshare
Year: 2020
Subjects: subject: 70505 Forestry Pests, Health and Diseases
subject: FOS: Agriculture, forestry and fisheries

description: Potter, K.M. 2017. Introduction. Chapter 1 in K.M. Potter and B.L. Conkling, eds., Forest Health Monitoring: National Status, Trends and Analysis, 2016. General Technical Report SRS-222. Asheville, North Carolina: U.S. Department of Agriculture, Forest Service, Southern Research Station. p. 5-18.

Healthy ecosystems are those that are stable and sustainable, able to maintain their organization and autonomy over time while remaining resilient to stress (Costanza 1992). Healthy forests are vital to our future (Edmonds and others 2011), and consistent, large-scale, and long-term monitoring of key indicators of forest health status, change, and trends is necessary to identify forest resources deteriorating across large regions (Riitters and Tkacz 2004). The Forest Health Monitoring (FHM) Program of the Forest Service, U.S. Department of Agriculture, with cooperating researchers within and outside the Forest Service and with State partners, quantifies status and trends in the health of U.S. forests. The analyses and results outlined in sections 1 and 2 of this FHM annual national report offer a snapshot of the current condition of U.S. forests from a national or multi-State regional perspective, incorporating baseline investigations of forest ecosystem health, examinations of change over time in forest health metrics, and assessments of developing threats to forest stability and sustainability. For datasets collected on an annual basis, analyses are presented from 2015 data. For datasets collected over several years, analyses are presented at a longer temporal scale. Finally, section 3 of this report presents summaries of results from recently completed Evaluation Monitoring (EM) projects that have been funded through the FHM national program to determine the extent, severity and/or causes of specific forest health problems (FHM 2016).
Evolution from AGB to planetary nebula in the MSX survey
Creators: name: Ortiz, R.
name: Lorenz-Martins, S.
name: Maciel, W. J.
name: Rangel, E. M.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the evolution of oxygen- and carbon-rich AGB stars, post-AGB objects, and planetary nebulae using data collected mainly from the MSX catalogue. Magnitudes and colour indices are compared with those calculated from a grid of synthetic spectra that describe the post-AGB evolution beginning at the onset of the superwind. We find that carbon stars and OH/IR objects form two distinct sequences in the (K-[8.3])x([8.3]-[14.7]) MSX colour diagram. OH/IR objects are distributed in two groups: the bluest ones are crowded near [14.7]-[21.3]=1 and [8.3]-[14.7]=2, and a second, redder group is spread over a large area in the diagram, where post-AGB objects and planetary nebulae are also found. High mass-loss rate OH/IR objects, post-AGB stars, and planetary nebulae share the same region in the (K-[8.3])x([8.3]-[14.7]) and [14.7]-[21.3]x([8.3]-[14.7]) colour-colour diagrams. This region in the diagram is clearly separated from a bluer one where most OH/IR stars are found. We use a grid of models of post-AGB evolution, which are compared with the data. The gap in the colour-colour diagrams is interpreted as the result of the rapid trajectory in the diagram of the stars that have just left the AGB.
description: 11 pages, 5 postscript figures, LaTeX, uses Astronomy and Astrophysics macro aa.cls, graphicx package, to be published in Astronomy and Astrophysics, Also available at: http://www.astro.iag.usp.br/~maciel
title: Development of an optimization method for implementation in the computation of kinetic modeling in nuclear medicine
Creators: name: Prager, Lukas
Publisher: name: TU Wien
Year: 2019
Subjects: subject: Kinetische Modellierung
subject: Nuklearmedizin
subject: Zeitaktivitätskurve
subject: Zeitkonstanten
subject: Quantifizierung
subject: Algorithmus
subject: Kurvenfit
subject: Tracer
subject: PET
subject: Kinetic Modeling
subject: Nuclear Medicine
subject: Time Activity Curve
subject: Rate Constants
subject: Quantification
subject: Algorithm
subject: Curve Fit
subject: Tracer
subject: PET

description: Hintergrund: Auf Basis der Kinetischen Modellierung wurde ein Algorithmus entwickelt, welcher die Quantifizierung physiologischer Vorgänge im Körper erleichtert. Dafür werden mit Positron-Emissions-Tomographie (PET) aufgenommene Zeitaktivitätskurven (TAC) eingelesen und auf verschiedene mathematischen Charakteristika untersucht. Hierdurch bekommt man eine erste Einschätzung der Zeitkonstanten, welche für einen weiteren Kurvenfit verwendet werden können. Methoden: Um Korrelationen zwischen den Zeitkonstanten und den mathematischen Eigenschaften der TACs zu finden, wurden mit dem Programm Excel etwa 1200 TACs simuliert. Ein Python Skript diente dabei der mathematischen Analyse der TACs. Um verschiedene Modelltypen miteinander vergleichen zu können, wurde ein t-Test durchgeführt. Ergebnisse: Signifikante Korrelationen konnten nur für die ersten beiden Zeitkonstanten gefunden werden (r1 > 0.954, r2 > 0.799). Die restlichen Zeitkonstanten wurden daher über Konfidenzintervalle zum Niveau 95% geschätzt. Schlussfolgerungen: Durch eine erste Abschätzung der Zeitkonstanten wird einerseits die Zuverlässigkeit von Programmen zum Fitten von Kurven erhöht, andererseits können dadurch auch neue Tracer in der Nuklearmedizin einfacher studiert und ihr Verhalten im Körper analysiert werden.
description: Background: An algorithm was programed to facilitate the quantification of physiological processes in kinetic modeling. In order to do so, it reads in a measured time activity curve (TAC) acquired via positron emission tomography (PET), analyzes it for various mathematical characteristics and outputs values for the rate constants, which can be used for further curve fitting tools. Methods: Around 1200 TACs with different rate constants and model types have been simulated via Excel. These TACs were used to find correlations between their rate constants and mathematical properties, which were calculated by a Python script. Plus, a t-test was performed to see if there is a connection between different compartment model types. The obtained information can then be used for the analysis of real measured TACs, which yields good initial values for the rate constants. Results: Useful correlations were found for the first two rate constants only (r1 > 0.954, r2 > 0.799). The assessment of the remaining rate constants was done by providing two-sided 95% confidence intervals. Conclusion: By assessing the rate constants, both the reliability of curve fitting programs can be increased and new tracers in nuclear medicine can be studied more precisely.
Zero-Resistance States Induced by Electromagnetic-Wave Excitation in GaAs/AlGaAs Heterostructures
Creators: name: Mani, R. G.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report the detection of novel zero-resistance states induced by electromagnetic wave excitation in ultra high mobility GaAs/AlGaAs heterostructure devices, at low magnetic fields, $B$, in the large filling factor limit. Vanishing resistance is observed in the vicinity of $B = [4/(4j+1)] B_{f}$, where $B_{f} = 2π\textit{f}m^{*}/e$, where m$^{*}$ is the effective mass, e is the charge, and \textit{f} is the microwave frequency. The dependence of the effect is reported as a function of \textit{f}, the temperature, and the power.
description: Proc. EP2DS-15 [Nara (Japan), 14-18 July 2003]; 5 Pages, 10 Color Figures
Clocks without "time" in entangled-state experiments
Creators: name: Madjid, F. Hadi
name: Myers, John M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Entangled states of light exhibit measurable correlations between light detections at separated locations. These correlations are exploited in entangled-state quantum key distribution. To do so involves setting up and maintaining a rhythm of communication among clocks at separated locations. Here, we try to disentangle our thinking about clocks as used in actual experiments from theories of time, such as special relativity or general relativity, which already differ between each other. Special relativity intertwines the concept of time with a particular definition of the synchronization of clocks, which precludes synchronizing every clock to every other clock. General relativity imposes additional barriers to synchronization, barriers that invite seeking an alternative depending on any global concept of time. To this end, we focus on how clocks are actually used in some experimental situations. We show how working with clocks without worrying about time makes it possible to generalize some designs for quantum key distribution and also clarifies the need for alternatives to the special-relativistic definition of synchronization.
description: 11 pages
Tudo sobre alho-poró: do plantio à mesa
Creators: name: Popoff, Sandra
Publisher: name: Zenodo
Year: 2024
Subjects: jornalismo rural
agricultura sustentável

description: Você conhece o alho-poró? Ele é membro da família da cebola e do alho. Apesar de não ser tão popular quanto, ele é um vegetal que conquista paladares e encanta pela versatilidade na cozinha.  Quem usa, não esquece os elogios. Sabe por quê?

A doçura sutil e o aroma característico deste tempero adicionam um toque de sofisticação em sopas, tortas e acompanhamentos. E mais: é fácil de cultivar, inclusive para quem quer aproveitar a raiz do alho-poró comprado no mercado.

Caso você seja um pequeno produtor em busca de culturas diferenciadas ou um entusiasta da horta caseira, o alho-poró é uma excelente opção!

Originário da região mediterrânea, o alho-poró (Allium porrum) é cultivado há séculos. Civilizações antigas, como os egípcios, já reconheciam suas propriedades medicinais e apreciavam seu sabor peculiar.  Hoje, ele é ingrediente fundamental em pratos da culinária internacional, conquistando apreciadores ao redor do mundo.

Neste artigo, desvendaremos alguns segredos deste vegetal. Apresentaremos suas características, os benefícios para a saúde, dicas detalhadas sobre plantio e cultivo, tanto em vasos quanto em canteiros, e uma receita deliciosa para você fazer sucesso à mesa. Continue a leitura e torne-se um expert em alho-poró!
Differential Parametric Formalism for the Evolution of Gaussian States: Nonunitary Evolution and Invariant States
Creators: name: López-Saldívar, Julio A.
name: Man'ko, Margarita A.
name: Man'ko, Vladimir I.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In a differential approach elaborated, we study the evolution of the parameters of Gaussian, mixed, continuous variable density matrices, whose dynamics are given by Hermitian Hamiltonians expressed as quadratic forms of the position and momentum operators or quadrature components. Specifically, we obtain in generic form the differential equations for the covariance matrix, the mean values, and the density matrix parameters of a multipartite Gaussian state, unitarily evolving according to a Hamiltonian $\hat{H}$. We also present the corresponding differential equations which describe the nonunitary evolution of the subsystems. The resulting nonlinear equations are used to solve the dynamics of the system instead of the Schrödinger equation. The formalism elaborated allows us to define new specific invariant and quasi-invariant states, as well as states with invariant covariance matrices, i.e., states were only the mean values evolve according to the classical Hamilton equations. By using density matrices in the position and in the tomographic-probability representations, we study examples of these properties. As examples, we present novel invariant states for the two-mode frequency converter and quasi-invariant states for the bipartite parametric amplifier.
Interesting Worlds to Come. Science & Technology Studies Facing More-than-Human Challenges
Creators: name: Arnaldi, Simone
name: Giardullo, Paolo
name: Pelizza, Annalisa
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2024

description: This editorial by the board of STS Italia (The Italian Society for Social Studies of Science and Technology) introduces a Special Section of the Journal collecting a set of contributions to the IX STS Italia Conference, held in June 2023. The Special Section features an invited Lecture by Huub Dijstelbloem followed by a short commentary by Annalisa Pelizza. In addition, the Section includes the Crossing Boundaries “Drawing Bruno Together” and the Scenario “Bruno Latour and Artificial Intelligence” dedicated to Bruno Latour and both written by long-term colleagues, friends and exegetes of his work.
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 14 No. 2 (2023): Tecnoscienza Nr. 28
Sensitivity of the stress response function to packing preparation
Creators: name: Atman, A. P. F.
name: Brunet, P.
name: Geng, J.
name: Reydellet, G.
name: Combe, G.
name: Claudin, P.
name: Behringer, R. P.
name: Clément, E.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: A granular assembly composed of a collection of identical grains may pack under different microscopic configurations with microscopic features that are sensitive to the preparation history. A given configuration may also change in response to external actions such as compression, shearing etc. We show using a mechanical response function method developed experimentally and numerically, that the macroscopic stress profiles are strongly dependent on these preparation procedures. These results were obtained for both two and three dimensions. The method reveals that, under a given preparation history, the macroscopic symmetries of the granular material is affected and in most cases significant departures from isotropy should be observed. This suggests a new path toward a non-intrusive test of granular material constitutive properties.
description: 15 pages, 11 figures, some numerical data corrected, to appear in J. Phys. Cond. Mat. special issue on Granular Materials (M. Nicodemi Editor)
Drawing Bruno Together
Creators: name: Akrich, Madeleine
name: Dijstelbloem, Huub
name: Pelizza, Annalisa
name: Landri, Paolo
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2024

description: This Crossing Boundaries stems from two events: the recent STS-Italia conference (Bologna, June 2023) and the 4S/ESOCITE conference (Cholula, December 2022). Both events dedicated a space for reflecting on Bruno Latour’s intellectual legacy, inviting some of the scholars who had the chance and the privilege to work with him. The text opens with a reflection by Madeleine Akrich on her two-decade experience working alongside Latour and on the multifaceted nature of his contributions to sociology, anthropology, and philosophy. The text continues with a contribution by Huub Dijstelbloem, who explores Latour’s magmatic thinking, emphasizing the transformative power of his ideas. Annalisa Pelizza traces two key associations in Bruno Latour’s intellectual trajectory. The first one traces back to Latour’s early engagement with the semiotics of the “École de Paris” and Greimas’ theory of enunciation, emphasizing the local context of the French semiotic debate. The second association delves into Latour’s connection with technofeminism and Donna Haraway’s material-semiotics, highlighting a global dialogue initiated in the late 1980s. Finally, Paolo Landri underlines the transformative potential of Latour’s vocabulary in the context of education, underlying the interdisciplinary connections fostered by following Latour. 
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 14 No. 2 (2023): Tecnoscienza Nr. 28
Additional file 7 of Birthweight: EN-BIRTH multi-country validation study
Creators: name: Kong, Stefanie
name: Day, Louise T.
name: Sojib Bin Zaman
name: Peven, Kimberly
name: Nahya Salim
name: Sunny, Avinash K.
name: Shamba, Donat
name: Rahman, Qazi Sadeq-Ur
name: Ashish, K.C.
name: Ruysen, Harriet
name: Shams El Arifeen
name: Mee, Paul
name: Gladstone, Miriam E.
name: Blencowe, Hannah
name: Lawn, Joy E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 7. Inter-observer agreement (Kappa) for gold standard observational data, EN-BIRTH study.
New Cooperative Development Issues
Creators: name: Henehan, Brian M.
name: Hardesty, Shermain D.
name: Shultz, Madeline
name: Wells, John
name: Henehan, Brian M.
name: Hardesty, Shermain D.
name: Shultz, Madeline
name: Wells, John
Publisher: name: Unknown
Year: 2011
Subjects: subject: Agribusiness
subject: Cooperatives
subject: New Cooperatives
subject: Developing Cooperatives

description: This article briefly reviews the increased interest in new cooperative development, factors for successful cooperative development, and strategies to improve the performance of new and emerging cooperatives. The article highlights issues identified by a panel of cooperative leaders, USDA specialists and academic experts
Reconciling Neutralino Relic Density with Yukawa Unified Supersymmetric Models
Creators: name: Auto, Daniel
name: Baer, Howard
name: Belyaev, Alexander
name: Krupovnickas, Tadas
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Supersymmetric grand unified models based on the gauge group SO(10) are especially attractive in light of recent data on neutrino masses. The simplest SO(10) SUSY GUT models predict unification of third generation Yukawa couplings in addition to the usual gauge coupling unification. Recent surveys of Yukawa unified SUSY GUT models predict an inverted scalar mass hierarchy in the spectrum of sparticle masses if the superpotential mu term is positive. In general, such models tend to predict an overabundance of dark matter in the universe. We survey several solutions to the dark matter problem in Yukawa unified supersymmetric models. One solution-- lowering the GUT scale mass value of first and second generation scalars-- leads to u_R and c_R squark masses in the 90-120 GeV regime, which should be accessible to Fermilab Tevatron experiments. We also examine relaxing gaugino mass universality which may solve the relic density problem by having neutralino annihilations via the Z or h resonances, or by having a wino-like LSP.
description: 21 page file plus 9 figures; updated version to coincide with published version
Reconstruction in an imaging calorimeter for HL-LHC
Creators: name: Di Pilato, Antonio
name: Chen, Ziheng
name: Pantaleo, Felice
name: Rovere, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The CMS endcap calorimeter upgrade for the High Luminosity LHC in 2027 uses silicon sensors to achieve radiation tolerance, with the further benefit of a very high readout granularity. Small scintillator tiles with individual SiPM readout are used in regions permitted by the radiation levels. A reconstruction framework is being developed to fully exploit the granularity and other significant features of the detector like precision timing, especially in the high pileup environment of HL-LHC. An iterative clustering framework (TICL) has been put in place, and is being actively developed. The framework takes as input the clusters of energy deposited in individual calorimeter layers delivered by the CLUE algorithm, which has recently been revised and tuned. Mindful of the projected extreme pressure on computing capacity in the HL-LHC era, the algorithms are being designed with modern parallel architectures in mind. Important speedup has recently been obtained for the clustering algorithm by running it on GPUs. Machine learning techniques are being developed and integrated into the reconstruction framework. This paper will describe the approaches being considered and show first results.
A Computationally Efficient Multiclass Time-Frequency Common Spatial Pattern Analysis on EEG Motor Imagery
Creators: name: Zhang, Ce
name: Eskandarian, Azim
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Common spatial pattern (CSP) is a popular feature extraction method for electroencephalogram (EEG) motor imagery (MI). This study modifies the conventional CSP algorithm to improve the multi-class MI classification accuracy and ensure the computation process is efficient. The EEG MI data is gathered from the Brain-Computer Interface (BCI) Competition IV. At first, a bandpass filter and a time-frequency analysis are performed for each experiment trial. Then, the optimal EEG signals for every experiment trials are selected based on the signal energy for CSP feature extraction. In the end, the extracted features are classified by three classifiers, linear discriminant analysis (LDA), naïve Bayes (NVB), and support vector machine (SVM), in parallel for classification accuracy comparison. The experiment results show the proposed algorithm average computation time is 37.22% less than the FBCSP (1st winner in the BCI Competition IV) and 4.98% longer than the conventional CSP method. For the classification rate, the proposed algorithm kappa value achieved 2nd highest compared with the top 3 winners in BCI Competition IV.
description: Accepted by 42nd Annual International Conferences of the IEEE Engineering in Medicine and Biology Society in conjunction with the 43rd Annual Conference of the Canadian Medical and Biological Engineering Society, 2020
On Causality, the Modern Contract and Inertia in “Climate Migration”
Creators: name: Pelizza, Annalisa
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2024

description: Commentary to the Lecture “Moving the immovable: Climate change and the multiple tensions between mobility and immobility”, by Huub Dijstelbloem (this issue).
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 14 No. 2 (2023): Tecnoscienza Nr. 28
On the origin of artificial electrodynamics and other stories in three-dimensional bosonic models
Creators: name: Motrunich, O. I.
name: Senthil, T.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Several simple models of strongly correlated bosons on three-dimensional lattices have been shown to possess exotic fractionalized Mott insulating phases with a gapless `photon' excitation. In this paper we show how to view the physics of this `Coulomb' state in terms of the excitations of proximate superfluid. We argue for the presence of ordered vortex cores with a broken discrete symmetry in the nearby superfluid phase, and that proliferating these degenerate but distinct vortices with equal amplitudes produces the Coulomb phase. This provides a simple physical description of the origin of the exotic excitations of the Coulomb state. The physical picture is formalized by means of a dual description of three-dimensional bosonic systems in terms of fluctuating quantum mechanical vortex loops. Such a dual formulation is extensively developed. It is shown how the Coulomb phase (as well as various other familiar phases) of three-dimensional bosonic systems may be described in this vortex loop theory. For bosons at half-filling and the closely related system of spin-1/2 quantum magnets on a cubic lattice, fractionalized phases as well as bond or `box' ordered states are possible. The latter are analyzed by an extension of techniques previously developed in two spatial dimensions. The relation between these `confining' phases with broken translational symmetry and the fractionalized Coulomb phase is exposed.
description: 24 pages, 8 figures
Moving the Immovable: Climate Change and the Multiple Tensions between Mobility and Immobility
Creators: name: Dijstelbloem, Huub
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2024

description: The lecture examines the emergence of the research field of climate migration from a philosophy of science and technology perspective. It explores the tensions between mobility and immobility by discussing three specific technologies and infrastructures that emerge from the notion of climate migration and push mobility to the extreme: interventionist policies that encourage managed retreat, experimental digital technologies that promote circulation, and a proposal for a climate passport. It then considers implications of this paradigm of mobility for STS, focusing on immobility as a concept that can deepen and challenge our understanding of a trinity of states, sovereignty, and territory under conditions of climate change and mobility. By reconceptualizing the relationship between mobility and immobility, the lecture proposes a nuanced and refined alternative to the emphasis on motion, movement, and mobility, with the aim of contributing to the discussion of how climate (im)mobilities and Anthropocene (im)mobilities unfold.
description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 14 No. 2 (2023): Tecnoscienza Nr. 28
A simple method for domain adaptation of sentence embeddings
Creators: name: Kruspe, Anna
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Pre-trained sentence embeddings have been shown to be very useful for a variety of NLP tasks. Due to the fact that training such embeddings requires a large amount of data, they are commonly trained on a variety of text data. An adaptation to specific domains could improve results in many cases, but such a finetuning is usually problem-dependent and poses the risk of over-adapting to the data used for adaptation. In this paper, we present a simple universal method for finetuning Google's Universal Sentence Encoder (USE) using a Siamese architecture. We demonstrate how to use this approach for a variety of data sets and present results on different data sets representing similar problems. The approach is also compared to traditional finetuning on these data sets. As a further advantage, the approach can be used for combining data sets with different annotations. We also present an embedding finetuned on all data sets in parallel.
The spectrum of the restriction to an invariant subspace
Creators: name: Drivaliaris, Dimosthenis
name: Yannakakis, Nikos
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47A10, 47A15

description: Let $X$ be a Banach space, $A\in B(X)$ and $M$ be an invariant subspace of $A$. We present an alternative proof that, if the spectrum of the restriction of $A$ to $M$ contains a point that is in any given hole in the spectrum of $A$, then the entire hole is in the spectrum of the restriction.
Flexible Two-point Selection Approach for Characteristic Function-based Parameter Estimation of Stable Laws
Creators: name: Kakinaka, Shinji
name: Umeno, Ken
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Stable distribution is one of the attractive models that well describes fat-tail behaviors and scaling phenomena in various scientific fields. The approach based upon the method of moments yields a simple procedure for estimating stable law parameters with the requirement of using momental points for the characteristic function, but the selection of points is only poorly explained and has not been elaborated. We propose a new characteristic function-based approach by introducing a technique of selecting plausible points, which could bring the method of moments available for practical use. Our method outperforms other state-of-art methods that exhibit a closed-form expression of all four parameters of stable laws. Finally, the applicability of the method is illustrated by using several data of financial assets. Numerical results reveal that our approach is advantageous when modeling empirical data with stable distributions.
description: 15 pages, 7 figures
Sarah Pink, Martin Berg, Deborah Lupton and Minna Ruckenstein (eds.), Everyday Automation: Experiencing and Anticipating Emerging Technologies, Routledge, 2022
Creators: name: Maia, Pedro Dos Santos
Publisher: name: Tecnoscienza – Italian Journal of Science & Technology Studies
Year: 2024

description: Tecnoscienza – Italian Journal of Science & Technology Studies, Vol. 14 No. 2 (2023): Tecnoscienza Nr. 28