cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Electronic Landscape of Group-5 Transition Metal Ditellurides $M$Te$_2$ ($M$ = V, Nb, Ta): Multiple Crystal Phases with Local Bonds and Flat Bands
Creators: name: Mitsuishi, Natsuki
name: Ishizaka, Kyoko
Publisher: name: arXiv
Year: 2024
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Group-5 transition metal ditellurides $M$Te$_2$ ($M$ = V, Nb, Ta) are unique CdI$_2$-type layered materials that exhibit peculiar quasi-one-dimensional intralayer superstructures, known as ribbon-chains and butterfly-like clusters of $M$ atoms. In this review article, we attempt to systematically understand their electronic band structures based on our recent angle-resolved photoemission spectroscopy (ARPES) studies and first-principles calculations. We underscore the role of the localized molecular-like orbital bonds that form the anomalous flat bands in the momentum space, and demonstrate how they influence the Fermi surface anisotropy, phase stabilities of crystal structures, and nontrivial topological properties in some cases. We also elaborate the future prospects for novel quantum phenomena that can be realized in these materials.
description: The final version is available in J. Phys. Soc. Jpn. (Open Acess)
Semiparametric Multinomial Logistic Regression for Multivariate Point Pattern Data
Creators: name: Hessellund, Kristian Bjørn
name: Xu, Ganggang
name: Guan, Yongtao
name: Waagepetersen, Rasmus
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: We propose a new method for analysis of multivariate point pattern data observed in a heterogeneous environment and with complex intensity functions. We suggest semiparametric models for the intensity functions that depend on an unspecified factor common to all types of points. This is for example well suited for analyzing spatial covariate effects on events such as street crime activities that occur in a complex urban environment. A multinomial conditional composite likelihood function is introduced for estimation of intensity function regression parameters and the asymptotic joint distribution of the resulting estimators is derived under mild conditions. Crucially, the asymptotic covariance matrix depends on ratios of cross pair correlation functions of the multivariate point process. To make valid statistical inference without restrictive assumptions, we construct consistent nonparametric estimators for these ratios. Finally, we construct standardized residual plots, predictive probability plots, and semiparametric intensity plots to validate and to visualize the findings of the model. The effectiveness of the proposed methodology is demonstrated through extensive simulation studies and an application to analyzing the effects of socio-economic and demographical variables on occurrences of street crimes in Washington DC. Supplementary materials for this article are available online.
Synthesis, characterization and anti-inflammatory activity evaluation of 1,2,4-triazole and its derivatives as a potential scaffold for the synthesis of drugs against prostaglandin-endoperoxide synthase
Creators: name: Khan, Bushra
name: Naiyer, Abdullah
name: Fareeda Athar
name: Ali, Shakir
name: Sonu Chand Thakur
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology

description: Substituted 1,2,4-triazole nucleus is common in several drugs used in a variety of clinical conditions including infections, hypoglycemia, hypertension and cancer. In this study, we synthesized 1,2,4-triazole and its 16 hydrazone derivatives (B1-B16), characterized them by IR, NMR and Mass spectroscopy, and evaluated their radical scavenging and anti-inflammatory activities in vitro and in vivo. Out of 16 derivatives, five (B1, B5, B6, B9, and B13) demonstrated a significant radical scavenging and anti-inflammatory activity in vitro. B6, which possessed two electron-donating hydroxyl groups, was most active among all. Molecular docking and MD simulation of the complex of B6 with prostaglandin-endoperoxide synthase (PTGS) or cyclooxygenase (COX) showed that B6 occupied celecoxib binding site in COX with high affinity (the binding free energy of the complex with COX-1 was -10.5, and -11.2 kcal/mol with COX-2). Maximum anti-inflammatory activity was also shown by the B6 derivative in vivo, in the rat model of carrageenan-induced inflammation. B6, along with four other derivatives (B1, B5, B9 and B13) exhibited 80-90% free radical scavenging activity. The IC50 values of these compounds were ≥40µM. Griess nitrite and dichloro-dihydro-fluorescein-diacetate assays suggested a significant inhibition of nitric oxide and reactive oxygen species, especially by B6 and B9. Taken together, out of 16 derivatives, B6 is reported to have highest anti-inflammatory and antioxidant activity at a low dose level, which may be attributed to its two electron-donating hydroxyls. B6 is proposed to be an important scaffold for the synthesis of new drugs against PTGS for use in a myriad of inflammatory and infectious diseases. Supplementary material includes physical properties and spectral analysis data of synthesized derivatives.
Nonparametric methods for volatility density estimation
Creators: name: van Es, Bert
name: Spreij, Peter
name: van Zanten, Harry
Publisher: name: arXiv
Year: 2009
Subjects: subject: Methodology (stat.ME)
subject: Statistics Theory (math.ST)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 62G07, 62G08, 62M07, 62P20, 91G70

description: Stochastic volatility modelling of financial processes has become increasingly popular. The proposed models usually contain a stationary volatility process. We will motivate and review several nonparametric methods for estimation of the density of the volatility process. Both models based on discretely sampled continuous time processes and discrete time models will be discussed. The key insight for the analysis is a transformation of the volatility density estimation problem to a deconvolution model for which standard methods exist. Three type of nonparametric density estimators are reviewed: the Fourier-type deconvolution kernel density estimator, a wavelet deconvolution density estimator and a penalized projection estimator. The performance of these estimators will be compared. Key words: stochastic volatility models, deconvolution, density estimation, kernel estimator, wavelets, minimum contrast estimation, mixing
Predicting the Number of Future Events
Creators: name: Tian, Qinglong
name: Meng, Fanqi
name: Nordman, Daniel J.
name: Meeker, William Q.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: This article describes prediction methods for the number of future events from a population of units associated with an on-going time-to-event process. Examples include the prediction of warranty returns and the prediction of the number of future product failures that could cause serious threats to property or life. Important decisions such as whether a product recall should be mandated are often based on such predictions. Data, generally right-censored (and sometimes left truncated and right-censored), are used to estimate the parameters of a time-to-event distribution. This distribution can then be used to predict the number of events over future periods of time. Such predictions are sometimes called within-sample predictions and differ from other prediction problems considered in most of the prediction literature. This article shows that the plug-in (also known as estimative or naive) prediction method is not asymptotically correct (i.e., for large amounts of data, the coverage probability always fails to converge to the nominal confidence level). However, a commonly used prediction calibration method is shown to be asymptotically correct for within-sample predictions, and two alternative predictive-distribution-based methods that perform better than the calibration method are presented and justified. Supplementary materials for this article are available online.
Three-dimensional topological field theory and symplectic algebraic geometry I
Creators: name: Kapustin, Anton
name: Rozansky, Lev
name: Saulina, Natalia
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We study boundary conditions and defects in a three-dimensional topological sigma-model with a complex symplectic target space X (the Rozansky-Witten model). We show that boundary conditions correspond to complex Lagrangian submanifolds in X equipped with complex fibrations. The set of boundary conditions has the structure of a 2-category; morphisms in this 2-category are interpreted physically as one-dimensional defect lines separating parts of the boundary with different boundary conditions. This 2-category is a categorification of the Z/2-graded derived category of X; it is also related to categories of matrix factorizations and a categorification of deformation quantization (quantization of symmetric monoidal categories). In the appendix we describe a deformation of the B-model and the associated category of branes by forms of arbitrary even degree.
description: 76 pages, AMS-latex. v2: references, acknowledgments, and a discussion of grading ambiguities have been added
Modeling High-Dimensional Time Series: A Factor Model with Dynamically Dependent Factors and Diverging Eigenvalues
Creators: name: Gao, Zhaoxing
name: Tsay, Ruey S.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: This article proposes a new approach to modeling high-dimensional time series by treating a p-dimensional time series as a nonsingular linear transformation of certain common factors and idiosyncratic components. Unlike the approximate factor models, we assume that the factors capture all the non-trivial dynamics of the data, but the cross-sectional dependence may be explained by both the factors and the idiosyncratic components. Under the proposed model, (a) the factor process is dynamically dependent and the idiosyncratic component is a white noise process, and (b) the largest eigenvalues of the covariance matrix of the idiosyncratic components may diverge to infinity as the dimension p increases. We propose a white noise testing procedure for high-dimensional time series to determine the number of white noise components and, hence, the number of common factors, and introduce a projected Principal Component Analysis (PCA) to eliminate the diverging effect of the idiosyncratic noises. Asymptotic properties of the proposed method are established for both fixed p and diverging p as the sample size n increases to infinity. We use both simulated data and real examples to assess the performance of the proposed method. We also compare our method with two commonly used methods in the literature concerning the forecastability of the extracted factors and find that the proposed approach not only provides interpretable results, but also performs well in out-of-sample forecasting. Supplementary materials of the article are available online.
title: Esclerosis tuberosa en diferentes órganos
Creators: name: Gamo Jiménez, Tamara
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: CT
subject: MR
subject: Paediatric
subject: Abdomen
subject: Neuroradiology brain

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Identificar las características radiológicas de la afectación multiorgánica en pacientes con esclerosis tuberosa. Identificar las manifestaciones de los órganos que pueden ser la clave para sospechar la presencia de esclerosis tuberosa,
incluso...
PEG Branched Polymer for Functionalization of Nanomaterials with Ultralong Blood Circulation
Creators: name: Prencipe, Giuseppe
name: Tabakman, Scott M.
name: Welsher, Kevin
name: Liu, Zhuang
name: Goodwin, Andrew P.
name: Zhang, Li
name: Henry, Joy
name: Dai, Hongjie
Publisher: name: arXiv
Year: 2009
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Nanomaterials have been actively pursued for biological and medical applications in recent years. Here, we report the synthesis of several new poly(ethylene glycol) grafted branched-polymers for functionalization of various nanomaterials including carbon nanotubes, gold nanoparticles (NP) and gold nanorods (NRs), affording high aqueous solubility and stability for these materials. We synthesize different surfactant polymers based upon poly-(g-glutamic acid) (gPGA) and poly(maleic anhydride-alt-1-octadecene) (PMHC18). We use the abundant free carboxylic acid groups of gPGA for attaching lipophilic species such as pyrene or phospholipid, which bind to nanomaterials via robust physisorption. Additionally, the remaining carboxylic acids on gPGA or the amine-reactive anhydrides of PMHC18 are then PEGylated, providing extended hydrophilic groups, affording polymeric amphiphiles. We show that single-walled carbon nanotubes (SWNTs), Au NPs and NRs functionalized by the polymers exhibit high stability in aqueous solutions at different pHs, at elevated temperatures and in serum. Morever, the polymer-coated SWNTs exhibit remarkably long blood circulation (t1/2 22.1 h) upon intravenous injection into mice, far exceeding the previous record of 5.4 h. The ultra-long blood circulation time suggests greatly delayed clearance of nanomaterials by the reticuloendothelial system (RES) of mice, a highly desired property for in vivo applications of nanomaterials, including imaging and drug delivery.
Correlation between volatile aroma compounds and sensory changes during storage of heat processed beef flavour
Creators: name: Zhang, Zeyu
name: Wang, Bei
name: Blank, Imre
name: Cao, Yanping
Publisher: name: Zenodo
Year: 2021
Subjects: beef flavour
heat processing
storage
aroma-active compound
sensory

description: Heat processed beef flavour (HPBF) is deteriorated by the storage environment, which is an urgent problem to be solved. This study aimed to explore the flavour quality change of HPBF based on both aroma compounds and sensory characteristics. The volatile compounds of HPBF were investigated with gas chromatography-olfactometry-mass spectrometry (GC-O-MS) using the aroma extract dilution analysis (AEDA) giving access to flavour dilution factor (FD), and odour activity values (OAV). Twenty key aroma active compounds of HPBF with Log3FD≥3 and OAV>1 were identified and followed during a 6-months storage. A total of 13 HPBF samples representing different storage time could be divided into four groups by hierarchical cluster analysis (CA) based on the changing of the 20 key aroma compounds. The sensory intensity of burnt and sauce-like notes gradually increased with time, while the characteristic beef aroma became weaker. Based on principal component analysis (PCA) and partial least squares regressions (PLSR) analysis, 2-methyl-3-furanthiol, 2-furfurylthiol, bis-(2-furfuryl) disulphide and others were correlated to the characteristic beef aroma in the early stage. Moreover, 2-methylbutanal and 2-ethyl-3,5-dimethylpyrazine could be correlated with the decrease of the characteristic beef aroma (p<0.05) and increase of the sauce-like note (p<0.05), enhancing the burnt character with time. Dimethyl disulphide and dimethyl trisulphide had significant effects on the formation of burnt and sauce-like notes modifying the spice intensity in HPBF during storage. The correlation between flavour profiles and sensory characteristics have been clearly explained and demonstrated.
title: Estenosis laríngea no neoplásica: cómo reconocerla y qué sospechar.
Creators: name: Madureira Cordeiro, Joana
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Obstruction / Occlusion
subject: Inflammation
subject: Infection
subject: CT
subject: Ear / Nose / Throat
subject: Emergency
subject: Head and neck

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Revisar la patología laríngea estenótica no neoplásica en el adulto,
su etiopatogenia y diagnóstico diferencial,
mediante técnica TC y reconstrucción multiplanar. En nuestra serie predominan pacientes ingresados en UCI durante largos...
Two-kink bound states in the magnetically perturbed Potts field theory at T
Creators: name: Rutkevich, S. B.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The q-state Potts field theory with $2\le q\le 4$ in the low-temperature phase is considered in presence of a weak magnetic field h. In absence of the magnetic field, the theory is integrable, but not free at q>2: its elementary excitations - the kinks - interact at small distances, and their interaction can be characterized by the factorizable scattering matrix which was found by Chim and Zamolodchikov. The magnetic field induces the long-range attraction between kinks causing their confinement into the bound-states. We calculate the masses of the two-kink bound states in the leading order in |h| -> 0 expressing them in terms of the scattering matrix of kinks at h=0.
description: 20 pages, no figures, v2: one section and references added
An Intriguing Chromospheric Jet Observed by Hinode: I. Fine Structure Kinematics and Evidence of Unwinding Twists
Creators: name: Liu, Wei
name: Berger, Thomas E.
name: Title, Alan M.
name: Tarbell, Theodore D.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report a chromospheric jet lasting for more than 1 hr observed by Hinode Solar Optical Telescope in unprecedented detail. The ejection occurred in three episodes separated by 12-14 min, with the amount and velocity of material decreasing with time. The upward velocities range from 438 to 33 km/s, while the downward velocities of the material falling back have smaller values (mean: -56 km/s) and a narrower distribution (standard deviation: 14 km/s). The average acceleration inferred from parabolic space-time tracks is 141 m/s^2, a fraction of the solar gravitational acceleration. The jet consists of fine threads (0.5-2.0 arcsec wide), which exhibit coherent, oscillatory transverse motions perpendicular to the jet axis and about a common equilibrium position. These motions propagate upward along the jet, with the maximum phase speed of 744 +/- 11 km/s at the leading front of the jet. The transverse oscillation velocities range from 151 to 26 km/s, amplitudes from 6.0 to 1.9 Mm, and periods from 250 to 536 s. The oscillations slow down with time and cease when the material starts to fall back. The falling material travels along almost straight lines in the original direction of ascent, showing no transverse motions. These observations are consistent with the scenario that the jet involves untwisting helical threads, which rotate about the axis of a single large cylinder and shed magnetic helicity into the upper atmosphere.
description: 6 pages, 4 figures, accepted by The Astrophysical Journal Letters (2009 Oct 27); online only material (movies) available at: http://sun.stanford.edu/~weiliu/eprints/2009/2009-05_Ca-jet
Making sense of ghosts
Creators: name: Holdom, Bob
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Ghosts have been a stumbling block in the development of a UV complete quantum field theory for gravity. We discuss how difficulties associated with ghosts are overcome in the context of 0+1d QFT. Obtaining a probability interpretation is the key issue, and for this we discuss how an appropriate inner product can be constructed to define a sensible Born rule. Ghost theories are intrinsically unitary and perturbatively stable. They can also display nonperburbative stability even when the corresponding normal theory does not. The spectra and propagators are numerically obtained at both weak and strong coupling. Normalizable wave functions are obtained for the energy eigenstates and they show a violation of normal parity. We discuss connections to PT-symmetric quantum mechanics.
description: 33 pages, 3 figures, matches published version
Semi-parametric multinomial logistic regression for multivariate point pattern data
Creators: name: Hessellund, Kristian Bjørn
name: Xu, Ganggang
name: Guan, Yongtao
name: Waagepetersen, Rasmus
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: We propose a new method for analysis of multivariate point pattern data observed in a heterogeneous environment and with complex intensity functions. We suggest semi-parametric models for the intensity functions that depend on an unspecified factor common to all types of points. This is for example well suited for analyzing spatial covariate effects on events such as street crime activities that occur in a complex urban environment. A multinomial conditional composite likelihood function is introduced for estimation of intensity function regression parameters and the asymptotic joint distribution of the resulting estimators is derived under mild conditions. Crucially, the asymptotic covariance matrix depends on ratios of cross pair correlation functions of the multivariate point process. To make valid statistical inference without restrictive assumptions, we construct consistent non-parametric estimators for these ratios. Finally, we construct standardized residual plots, predictive probability plots, and semi-parametric intensity plots to validate and to visualize the findings of the model. The effectiveness of the proposed methodology is demonstrated through extensive simulation studies and an application to analyzing the effects of socio-economic and demographical variables on occurrences of street crimes in Washington DC.
title: Valoración de la difusión y perfusión en tumores del tracto genitourinario a través del modelo IVIM.
Creators: name: Martín Noguerol, Teodoro
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Metastases
subject: Neoplasia
subject: Molecular imaging
subject: Observer performance
subject: MR-Diffusion/Perfusion
subject: MR-Functional imaging
subject: Genital / Reproductive system male
subject: Genital / Reproductive system female

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Establecer el marco teórico del modelo IVIM y realizar una revisión bibliográfica del tema. Definir de las características técnicas de las secuencia de difusión para llevar a cabo su análisis bicompartimental con el modelo IVIM. Ejemplificar...
Testing for coherence and nonstandard neutrino interactions in COHERENT data
Creators: name: Liao, Jiajun
name: Marfatia, Danny
name: Zhang, Jiajie
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze data from the CsI, liquid Ar and Ge detectors of the COHERENT experiment and confirm within $1.5σ$ that the measured elastic neutrino-nucleus scattering cross section is proportional to the square of the number of neutrons in the nucleus, as expected for coherent scattering in the standard model. We also show how various degeneracies involving nonstandard neutrino interaction parameters are broken in a combined analysis of the three datasets.
description: 10 pages, 8 figures, 1 table. Version to appear in PRD
Si-waveguide-based optical power monitoring of 2$\times$2 Mach$\unicode{x2013}$Zehnder interferometer based on InGaAsP/Si hybrid MOS optical phase shifter
Creators: name: Akazawa, Tomohiro
name: Monfray, Stéphane
name: Boeuf, Frédéric
name: Toprasertpong, Kasidit
name: Takagi, Shinichi
name: Takenaka, Mitsuru
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Transparent in-line optical power monitoring in Si programmable photonic integrated circuits (PICs) is indispensable for calibrating integrated optical devices such as optical switches and resonators. A Si waveguide (WG) photodetector (PD) based on defect-mediated photodetection is a promising candidate for a transparent in-line optical power monitor owing to its simplicity and ease of integration with a fully complementary metal-oxide-semiconductor (CMOS)-compatible process. Here, we propose a simple optical power monitoring scheme for a 2$\times$2 Mach$\unicode{x2013}$Zehnder interferometer (MZI) optical switch based on InGaAsP/Si hybrid MOS optical phase shifters. In the proposed scheme, a low-doped p-type Si WG PD with a response time of microseconds is utilized as a transparent in-line optical power monitor and the ground terminal of the MOS optical phase shifter is shared with that of the Si WG PD to enable the simple monitoring of the output optical power of the MZI. Based on this scheme, we experimentally demonstrate that the output optical power of a 2$\times$2 MZI can be simply monitored by applying a bias voltage to the Si slabs formed at the output WGs of the MZI without excess optical insertion loss.
title: Lesiones del SNC inducidas por drogas de abuso
Creators: name: Torra Ferrer, Neus
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neuroradiology brain

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Revisar cuales son las lesiones del sistema nervioso central (SNC) inducidas por las drogas de abuso.
Estas pueden ser hemorragias intraparenquimatosa,
subaracnoideas,
o intraventricular,
o bien lesiones isquémicas no hemorrágicas,
generalmente...
Impressão 3D nas escolas brasileiras: uma ferramenta útil para o ensino de ciências?
Creators: name: Previtera, Aline
name: Peixoto, J
name: Freitas, Raquel
name: Ceccatto, Vânia Marilande
name: CAVALCANTE, FRANCISCO SALES ÁVILA
Publisher: name: Zenodo
Year: 2025

description: 3D printing has emerged as a promising tool in education by enabling the creation of highlyprecise physical models. This technology facilitates the visualization of complex structuresand processes, supporting the teaching-learning process across various fields such as health,engineering, and education. Although 3D printing is widely used in higher education,especially in health and engineering courses, its application in elementary education remainsunderexplored. This study aims to conduct a systematic review of how 3D printing is beingused to produce educational materials in Brazilian elementary schools and to assess its rolein improving children's learning. The present review use PRISMA approach to cover the lastfive years of national scientific productions, analysing 3D printing’s utility as a didactic toolfor improving learning outcomes, particularly in biology, chemistry, and physics. Theimplementation of this technology faces several challenges, such as high costs, lack oftechnical expertise among teachers, and limited resources in public schools. Despite thesechallenges, 3D printing shows potential as a transformative educational tool, encouragingactive learning, creativity, and problem-solving skills. Our research underscores the need formore investment in teacher training and school infrastructure to expand the use of thisinnovative technology in Brazilian education. The study concludes that 3D printing not onlyenhances engagement and comprehension in various subjects but also promotes inclusivityby making complex concepts accessible to the students.
title: Dr. Robert J. Ursano, MD, COL, USAF, MC (Ret.) Oral History Interview Transcript
Creators: name: Uniformed Services University of the Health Sciences
Publisher: name: University Archives, Uniformed Services University of the Health Sciences, Bethesda, Maryland 20814
Year: 2009
Subjects: classificationCode: 3
subject: FOS: Medical and health sciences
classificationCode: 6.1
subject: FOS: History and archaeology

description: USU Oral History Interview Transcript
Dr. Robert J. Ursano, MD, COL, USAF, MC (Ret.)
Chair, Department of Psychiatry
Founding Director of the Center for the Study of Traumatic Stress (CSTS)
10-28-2009
Interviewed by Megan Guglielmi
Profili di sommarizzazione del processo civile
Profiles of summarisation of civil process
Creators: name: Vestrucci, Maria Teresa <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: IUS/15 Diritto processuale civile

description: La tesi intende offrire una panoramica approfondita dello strumento sommario, ed in particolare di come il legislatore ne abbia fatto uso nel nostro ordinamento, soprattutto nelle recenti riforme del codice di procedura civile.
La candidata si sofferma, dapprima, in un’analisi generale circa la definizione del concetto stesso di sommarizzazione, anche attraverso la disamina delle varie posizioni dottrinali e giurisprudenziali emerse, sul punto, negli ultimi anni.
description: This thesis wants to provide an examination of the instrumento of summarisation, and in particular how the legislature has used it in our system, especially in the recent reforms of the Code of Civil Procedure.
The candidate focuses, at first, in a general analysis on the definition of the concept of summarization, also through the examination of the various positions of doctrine and jurisprudence, emerged on this point in recent years.
Iterative phase estimation
Creators: name: O'Loan, Caleb J
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give an iterative algorithm for phase estimation of a parameter theta, which is within a logarithmic factor of the Heisenberg limit. Unlike other methods, we do not need any entanglement or an extra rotation gate which can perform arbitrary rotations with almost perfect accuracy: only a single copy of the unitary channel and basic measurements are needed. Simulations show that the algorithm is successful. We also look at iterative phase estimation when depolarizing noise is present. It is seen that the algorithm is still successful provided the number of iterative stages is below a certain threshold.
description: Published version. Some inequalities strengthend
title: Face Mask Use and Physical Distancing Before and After Mandatory Masking: No Evidence on Risk Compensation in Public Waiting Lines
Creators: name: Seres, Gyula
name: Balleyer, Anna
name: Cerutti, Nicola
name: Friedrichsen, Jana
name: Süer, Müge
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2021

description: During the COVID-19 pandemic, the introduction of mandatory face mask usage triggered a heated debate. A major point of controversy is whether community use of masks creates a false sense of security that would diminish physical distancing, counteracting any potential direct benefit from masking. We conducted a randomized field experiment in Berlin, Germany, to investigate how masks affect distancing and whether the mask effect interacts with the introduction of an indoor mask mandate. Joining waiting lines in front of stores, we measured distances kept from the experimenter in two treatment conditions – the experimenter wore a mask in one and no face covering in the other – in two time spans – before and after mask use becoming mandatory in stores. We find no evidence that mandatory masking has a negative effect on distance kept toward a masked person. To the contrary, masks significantly increase distancing and the effect does not differ between the two periods. However, we show that after the mandate distances are shorter in locations where more non-essential stores, which were closed before the mandate, had reopened. We argue that the relaxations in general restrictions that coincided with the mask mandate led individuals to reduce other precautions, like keeping a safe distance.
A farm-level programming model to compare the atmospheric impact of conventional and organic farming
Creators: name: Signorotti, Claudio <1972>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: SECS-P/02 Politica economica

description: A model is developed to represent the activity of a farm using the method of linear programming. Two are the main components of the model, the balance of soil fertility and the livestock nutrition. According to the first, the farm is supposed to have a total requirement of nitrogen, which is to be accomplished either through internal sources (manure) or through external sources (fertilisers). The second component describes the animal husbandry as having a nutritional requirement which must be satisfied through the internal production of arable crops or the acquisition of feed from the market. The farmer is supposed to maximise total net income from the agricultural and the zoo-technical activities by choosing one rotation among those available for climate and acclivity. The perspective of the analysis is one of a short period: the structure of the farm is supposed to be fixed without possibility to change the allocation of permanent crops and the amount of animal husbandry.
The model is integrated with an environmental module that describes the role of the farm within the carbon-nitrogen cycle. On the one hand the farm allows storing carbon through the photosynthesis of the plants and the accumulation of carbon in the soil; on the other some activities of the farm emit greenhouse gases into the atmosphere.
The model is tested for some representative farms of the Emilia-Romagna region, showing to be capable to give different results for conventional and organic farming and providing first results concerning the different atmospheric impact. Relevant data about the representative farms and the feasible rotations are extracted from the FADN database, with an integration of the coefficients from the literature.
title: Extending the predictability of flood hazard at the global scale
Creators: name: Emerton, Rebecca Elizabeth
Publisher: name: University of Reading
Year: 2019

description: Flooding has the highest frequency of occurrence of all types of disaster arising from natural hazards across the globe. The anticipation and forecasting of floods is a key component in managing, preparing for and mitigating the effects of severe events, from local to international scales. This research aims to explore ways to extend the predictability of flood hazard at the global scale and provide earlier indications of potential flood events. Two approaches for predicting river flow extremes on seasonal timescales are developed and tested; statistical forecasts based on the known influence of El Niño and La Niña on river flow and flooding at the global scale, and dynamical forecasts using numerical weather prediction systems. The statistical forecast development has shown that the likelihood of increased or decreased flood hazard during El Niño and La Niña events is much more complex than is often perceived and reported. The dynamical forecasts are shown to be more skilful than a long-term average climatology in many rivers worldwide, up to four months in advance in some cases. These approaches both have the potential to provide early warning information, and to support El Niño preparedness activities. As such, a comparison of the ability of the two forecasts to predict hydrological extremes during El Niño is undertaken, highlighting regions of the globe where each forecast is (or is not) skilful compared to a forecast of climatology, and the advantages and disadvantages of each approach. Both of these new seasonal hydro-meteorological forecasts are openly available, with the dynamical forecasts produced operationally as part of the Global Flood Awareness System (GloFAS-Seasonal), supported by the Copernicus Emergency Management Service. This research has provided a step change in moving from forecasts that were previously only available for precipitation, to global-scale forecasts of hydrological variables at extended lead-times.
Entanglement in atomic resonance fluorescence
Creators: name: Grünwald, P.
name: Vogel, W.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The resonance fluorescence from regular atomic systems is shown to represent a continuous source of non-Gaussian entangled radiation propagating in two different directions. For a single atom entanglement occurs under the same conditions as squeezing. For more atoms, the entanglement can be more robust against dephasing than squeezing, hence providing a useful continuous source for various applications of entangled radiation.
description: 4 pages, 1 figure
Sub-mm/mm studies of the molecular gas in the Galactic disk; the TeV gamma ray SNR RXJ1713.7-3946 and the W28 high mass star forming region
Creators: name: Fukui, Yasuo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Interstellar molecular clouds are gamma ray sources through the interactions with cosmic ray protons followed by production of neutral pions which decay into gamma rays. We present new NANTEN2 observations of the TeV gamma ray SNR RXJ1713.7-3946 and the W28 region in the 12CO J=2-1, 4-3 and 7-6 emission lines. In RXJ1713.7-3946 we confirm that the local molecular gas having velocities around -10 km/s shows remarkably good spatial correlations with the SNR. We show that the X ray peaks are well correlated with the molecular gas over the whole SNR and suggest that the interactions between the SNR and the molecular gas play an important role in cosmic ray acceleration via several ways including magnetic field compression. The CO J=4-3 distribution towards peak C shows a compact and dense cloud core having a size of about 1 pc as well as a broad wing. The core shows a notable anti-correlation with the Suzaku X ray image and is also associated with hard gamma rays as observed with HESS. Based on these findings, we present a picture that peak C is a molecular clump survived against the impact of the SN blast waves and is surrounded by high energy electrons emitting the X ray. The TeV gamma ray distribution is, on the other hand, more extended into the molecular gas, supporting the hadronic origin of gamma ray production. W28 is one of the most outstanding star forming regions exhibiting TeV gamma rays as identified through a comparison between the NANTEN CO dataset and HESS gamma ray sources. In the W28 region, we show the CO J=2-1 distribution over the whole region as well as the detailed image of the two TeV gamma ray peaks. One of them show strong CO J=7-6 emission, suggesting high excitation conditions in this high mass star forming core. A pursuit for the detailed mechanism to produce gamma rays is in progress.
description: 9 pages, 8 Encapsulated Postscript figures, uses aipxfm.sty aipproc.cls aip-6s.clo aip-8d.clo aip-8s.clo
Codimension-2 brane inflation
Creators: name: Lee, Hyun Min
name: Papazoglou, Antonios
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider a probe codimension-2 brane inflation scenario in a warped six-dimensional flux compactification. Our background model is Salam-Sezgin gauged supergravity with codimension-2 brane sources, which preserve N=1 supersymmetry. The model has a modulus, which is stabilised by means of a cap regularisation of the codimension-2 singularities, with appropriate dilaton potentials on the ring interface of the caps with the bulk. We discuss the cosmological evolution of the world-volume of a probe codimension-2 brane when it moves along the radial direction of the internal space. In order to have slow-roll inflation, one needs the warping of the internal space to be weak, in contrast to the recent string inflation constructions with strong warping. We discuss the parameter range that the inflation is in agreement with the observationally inferred parameters and which furthermore is consistent with the probe brane approximation. We provide arguments pointing that the probe brane approximation is a good assumption if the probe brane is not exactly conical and show with a multibrane solution that the mild warping needed for a slow-roll inflation is not spoiled by the probe brane.
description: 38 pages, 1 figure, Journal version in Phys. Rev. D
From normal to competo-allosteric regulation: Insights into the binding pattern dynamics of DSPI protein of Pseudomonas aeruginosa
Creators: name: Zaman, Naila
name: Azam, Syed Sikander
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Molecular Biology
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Computational Biology

description: DSPI, a putative enoyl-coenzyme A (CoA) hydratase/isomerase, is anticipated to be involved in the synthesis of cis-2-decenoic acid (CDA), a quorum sensing (QS) signal molecule present in the superbug Pseudomonas aeruginosa. The current study not only adapts a broad-spectrum strategy for the lucid design of small molecule modulators but also provides novel allosteric inhibitors for DSPI, to investigate its function and potential as a therapeutic target. Docking analysis revealed that the compound 10252273, bound to the specific allosteric site, interacted with Glu118, unique amino acid residue of the active binding pocket, hence indicates the presence of a competitive allosteric site. The current study thus identifies and characterizes inhibitors by targeting the normal binding site and also reports the presence of the competo-allosteric site in the same binding tunnel as the normal site. Molecular docking studies proposed two chemical compounds that share a benzamide-benzimidazole (BB) backbone as potent inhibitors that can obstruct the mechanism of DSPI by targeting both the normal and proposed allosteric binding sites. MD simulations further revealed the disruption of the normal binding site due to the displacement of critical residues Cys146 and Glu118. The rearrangement of H-bond pattern, pi-pi interactions, and strong hydrophobic interactions were observed at both the binding sites. The allosteric pocket inhibitor exhibited improved binding energy than the normal site inhibitor based on MMGBSA and MMPBSA analysis. With subsequent characterization, the current study reveals the allosteric binding site and provides insights into the drug binding mechanism of DSPI.
Contraction of fermionic operator circuits and the simulation of strongly correlated fermions
Creators: name: Barthel, Thomas
name: Pineda, Carlos
name: Eisert, Jens
Publisher: name: arXiv
Year: 2009
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A fermionic operator circuit is a product of fermionic operators of usually different and partially overlapping support. Further elements of fermionic operator circuits (FOCs) are partial traces and partial projections. The presented framework allows for the introduction of fermionic versions of known qudit operator circuits (QUOC), important for the simulation of strongly correlated d-dimensional systems: The multiscale entanglement renormalization ansatz (MERA), tree tensor networks (TTN), projected entangled pair states (PEPS), or their infinite-size versions (iPEPS etc.). After the definition of a FOC, we present a method to contract it with the same computation and memory requirements as a corresponding QUOC, for which all fermionic operators are replaced by qudit operators of identical dimension. A given scheme for contracting the QUOC relates to an analogous scheme for the corresponding fermionic circuit, where additional marginal computational costs arise only from reordering of modes for operators occurring in intermediate stages of the contraction. Our result hence generalizes efficient schemes for the simulation of d-dimensional spin systems, as MERA, TTN, or PEPS to the fermionic case.
description: 12 pages, 9 pdf figures; published version
Some geometric critical exponents for percolation and the random-cluster model
Creators: name: Deng, Youjin
name: Zhang, Wei
name: Garoni, Timothy M.
name: Sokal, Alan D.
name: Sportiello, Andrea
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: Probability (math.PR)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We introduce several infinite families of new critical exponents for the random-cluster model and present scaling arguments relating them to the k-arm exponents. We then present Monte Carlo simulations confirming these predictions. These new exponents provide a convenient way to determine k-arm exponents from Monte Carlo simulations. An understanding of these exponents also leads to a radically improved implementation of the Sweeny Monte Carlo algorithm. In addition, our Monte Carlo data allow us to conjecture an exact expression for the shortest-path fractal dimension d_min in two dimensions: d_min = (g+2)(g+18)/(32g) where g is the Coulomb-gas coupling, related to the cluster fugacity q via q = 2 + 2 cos(gπ/2) with 2 \le g \le 4.
description: LaTeX2e/Revtex4. Version 2 is completely rewritten to make the exposition more reader-friendly; it consists of a 4-page main paper (including 3 figures) and a 2-page EPAPS appendix (given as a single Postscript file). To appear in Phys Rev E