cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Baryon acoustic signature in the clustering of density maxima
Creators: name: Desjacques, Vincent
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We reexamine the two-point correlation of density maxima in Gaussian initial conditions. Spatial derivatives of the linear density correlation, which were ignored in the calculation of Bardeen, Bond, Kaiser & Szalay (1986), are included in our analysis. These functions exhibit large oscillations around the sound horizon scale for generic CDM power spectra. We derive the exact leading-order expression for the correlation of density peaks and demonstrate the contribution of those spatial derivatives. In particular, we show that these functions can modify significantly the baryon acoustic signature of density maxima relative to that of the linear density field. The effect depends upon the exact value of the peak height, the filter shape and size, and the small-scale behaviour of the transfer function. In the LambdaCDM cosmology, for maxima identified in the density field smoothed at mass scale M\approx 10^{12}-10^{14}M_sun/h and with linear threshold height ν=1.673/σ(M), the contrast of the BAO can be a few tens of percent larger than in the linear matter correlation. Overall, the BAO is amplified (damped) for threshold heights larger (less) than unity. Density maxima thus behave quite differently than linearly biased tracers of the density field, whose acoustic signature is a simple scaled version of the linear baryon acoustic oscillation. We also calculate the mean streaming of peak pairs in the quasi-linear regime. We show that the leading-order 2-point correlation and pairwise velocity of density peaks are consistent with a nonlinear, local biasing relation involving gradients of the density field. Biasing will be an important issue in ascertaining how much of the enhancement of the BAO in the primeval correlation of density maxima propagates into the late-time clustering of galaxies.
description: 19 pages, 8 figures. minor corrections. In press in PRD
Hot Electron Dynamics in Zincblende and Wurtzite GaN
Creators: name: Rodrigues, Clóves Gonçalves
name: Freire, Valder N.
name: Vasconcellos, Áurea R.
name: Luzzi, Roberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A theoretical investigation of the excess energy dissipation of highly excited photoinjected electrons in both wurtzite and zincblende GaN is presented. The calculations are performed by solving numerically coupled quantum transport equations for the carriers and the acoustic, transversal and longitudinal optical phonon in order to derive the evolution of their nonequilibrium temperatures, dubbed quasi-temperatures. It is shown that the electron energy dissipation is always faster in the wurtzite structure than in zincblende, both occurring in a subpicosecond time scale (< 0.2 ps).
description: arXiv admin note: substantial text overlap with arXiv:2110.00854
GENXICC2.0: An Upgraded Version of the Generator for Hadronic Production of Double Heavy Baryons $Ξ_{cc}$, $Ξ_{bc}$ and $Ξ_{bb}$
Creators: name: Chang, Chao-Hsi
name: Wang, Jian-Xiong
name: Wu, Xing-Gang
Publisher: name: arXiv
Year: 2009
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: An upgraded (second) version of the package GENXICC ({\bf A Generator for Hadronic Production of the Double Heavy Baryons $Ξ_{cc}$, $Ξ_{bc}$ and $Ξ_{bb}$ by C.H. Chang, J.X. Wang and X.G. Wu,} [its first version: in Comput. Phys. Commun. {\bf 177} (2007) 467-478]) is presented. Users, with this version being implemented in PYTHIA and a GNU C compiler, may simulate full events of the production in various experimental environments conveniently. In comparison with the previous version, in order to implement it in PYTHIA properly, a subprogram for the fragmentation of the produced double heavy diquark to the relevant baryon is complemented and the interphase of the generator to PYTHIA is changed accordingly. In the subprogram, with explanation, certain necessary assumptions (approximations) are made so as to conserve the momenta and the QCD `color' flow for the fragmentation.
description: 15 pages, 2 figures
Refinements of the trace inequality of Belmega, Lasaulce and Debbah
Creators: name: Furuichi, Shigeru
name: Lin, Minghua
Publisher: name: arXiv
Year: 2010
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 15A45

description: In this short paper, we show a certain matrix trace inequality and then give a refinement of the trace inequality proven by Belmega, Lasaulce and Debbah. In addition, we give an another improvement of their trace inequality.
description: to appear in Australian Journal of Mathematical Analysis and Applications
A Trust Management System for the IoT domain
Creators: name: Mathas, Christos-Minas
name: Vassilakis, Costas
name: Kolokotronis, Nicholas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: In modern internet-scale computing, interaction between a large number of parties that are not known a-priori is predominant, with each party functioning both as a provider and consumer of services and information. In such an environment, traditional access control mechanisms face considerable limitations, since granting appropriate authorizations to each distinct party is infeasible both due to the high number of grantees and the dynamic nature of interactions. Trust management has emerged as a solution to this issue, offering aids towards the automated verification of actions against security policies. In this paper, we present a trust- and risk-based approach to security, which considers status, behavior and associated risk aspects in the trust computation process, while additionally it captures user-to-user trust relationships which are propagated to the device level, through user-to-device ownership links.
Correlation Classes on the Landscape: To What Extent is String Theory Predictive?
Creators: name: Dienes, Keith R.
name: Lennek, Michael
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In light of recent discussions of the string landscape, it is essential to understand the degree to which string theory is predictive. We argue that it is unlikely that the landscape as a whole will exhibit unique correlations amongst low-energy observables, but rather that different regions of the landscape will exhibit different overlapping sets of correlations. We then provide a statistical method for quantifying this degree of predictivity, and for extracting statistical information concerning the relative sizes and overlaps of the regions corresponding to these different correlation classes. Our method is robust and requires no prior knowledge of landscape properties, and can be applied to the landscape as a whole as well as to any relevant subset.
description: 14 pages, LaTeX, 5 figures
Analisi del profilo tossicologico e cancerogeno di contaminanti ambientali e identificazione dei rischi per la salute umana correlati all'esposizione
Creators: name: Rotondo, Francesca <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: MED/04 Patologia generale

description: L’attenta analisi della letteratura scientifica su argomenti riguardanti i contaminanti ambientali oggetto di studio (i policlorodifenili) ha permesso di raccogliere dati utili riguardanti le proprietà di queste molecole, la loro diffusione e la loro pericolosità. Oggetto della ricerca è stato lo studio in vitro del potenziale citotossico e trasformante dei PCB, utilizzando come riferimento una miscela commerciale di PCB, l’Aroclor 1260, e di un MIX di 18 congeneri ricostituito in laboratorio. Il lavoro è proseguito con la valutazione degli effetti di queste miscele e di due congeneri singoli (PCB 118 e PCB 153) su linee cellulari diverse in test di vitalità a breve termine. L’utilizzo di test specifici ha poi permesso la valutazione di un possibile potenziale estrogenico. Una volta ottenuto un quadro generale sui possibili effetti delle miscele grazie ai risultati dei test funzionali, è stata valutata la modulazione, da parte delle molecole e/o di miscele delle stesse, dell’espressione di geni coinvolti nella risposta ad estrogeni o a composti diossino simili, andando ad effettuare un’analisi di tipo molecolare con Real-Time PCR (RT-PCR) e analizzando nello specifico marcatori di pathway dell’Aryl Hydrocarbon Receptor (AhR) o dell’Estrogen Receptor (ER). In ultima analisi al fine di verificare l’applicabilità di biomarkers di espressione a situazioni di contaminazioni reali, ci si è focalizzati su campioni estratti da matrici ambientali, ed in particolare linee cellulari di interesse sono state esposte a estratti di sedimenti provenienti da siti inquinati. L’approccio scelto è stato di tipo molecolare, con lo scopo di individuare pathway da valutare in un secondo momento in test funzionali specifici. L’attività di ricerca si è avvalsa della tecnica del DNA-microarray per valutare la modulazione dell’espressione genica in risposta all’esposizione a contaminanti ambientali. In questo modo è possibile definire i profili di espressione genica che sottendono a risposte biologiche complesse nell’intento di individuare biomarcatori in grado di predire il rischio per l’uomo, e di consentire la stima di una relazione diretta tra esposizione ed effetti possibili.
Revisiting pinors, spinors and orientability
Creators: name: Bonora, Loriano
name: Ruffino, Fabio Ferrari
name: Savelli, Raffaele
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the relations between pin structures on a non-orientable even-dimensional manifold, with or without boundary, and pin structures on its orientable double cover, requiring the latter to be invariant under sheet-exchange. We show that there is not a simple bijection, but that the natural map induced by pull-back is neither injective nor surjective: we thus find the conditions to recover a full correspondence. We also show how to describe such a correspondence using spinors instead of pinors on the double cover: this is in a certain sense possible, but in a way that contains anyhow an explicit reference to pinors. We then consider the example of surfaces, with detailed computations for the real projective plane, the Klein bottle and the Moebius strip.
description: 28 pages, no figures
Opción National Survey: Uruguay Late July 2013
Creators: name: Opción Consultores, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: 2014 general election; vote for or against parties; Colorado Party; National Party; Frente Amplio (a leftist political coalition); Independent Party; vote for or against candidates; Pedro Bordaberry (Colorado Party); Jorge Larrañaga (National Party); Tabaré Vázquez (Frente Amplio); Pablo Mieres (Independent Party); Luis Lacalle Pou (National Party); affinity to/separateness from various parties; José Mujica job approval; legalization of marijuana; legalized abortion; 2009 general election; José Mujica (Frente Amplio); Luis Lacalle Pou (National Party); Pablo Mieres (Independent Party). Montevideo: 2015 municipal election; vote for or against parties; Frente Amplio (a leftist political coalition); Partido de la Concertación (National and Colorado Parties running under a unified platform); Independent Party; vote for or against candidates; Fernando Lorenzo (Frente Amplio); Daniel Martínez (Frente Amplio); Raúl Sendic (Frente Amplio); Carolina Cosse (Frente Amplio); Ney Castillo (Partido de la Concertación); Jorge Gandini (National Party); Gustavo Penadés (National Party). National Agency for Research and Innovation (ANII) Collection.
Reduced order model approach for imaging with waves
Creators: name: Borcea, Liliana
name: Garnier, Josselin
name: Mamonov, Alexander V.
name: Zimmerling, Jörn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65M32, 41A20

description: We introduce a novel, computationally inexpensive approach for imaging with an active array of sensors, which probe an unknown medium with a pulse and measure the resulting waves. The imaging function uses a data driven estimate of the "internal wave" originating from the vicinity of the imaging point and propagating to the sensors through the unknown medium. We explain how this estimate can be obtained using a reduced order model (ROM) for the wave propagation. We analyze the imaging function, connect it to the time reversal process and describe how its resolution depends on the aperture of the array, the bandwidth of the probing pulse and the medium through which the waves propagate. We also show how the internal wave can be used for selective focusing of waves at points in the imaging region. This can be implemented experimentally and can be used for pixel scanning imaging. We assess the performance of the imaging methods with numerical simulations and compare them to the conventional reverse-time migration method and the "backprojection" method introduced recently as an application of the same ROM.
Odontoscelis byrrhus SEIDENSTUCKER 1972
Creators: name: Heiss, Ernst
name: AndreasE
name: Lederwasch, Manfred
name: RomedU
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Scutelleridae
Odontoscelis
Odontoscelis byrrhus

description: Odontoscelis byrrhus SEIDENSTÜCKER, 1972
GRC G r i e c h e n l a n d: Achaia, Chelmos, Peloponnes, 2 Ex., 6. VI.1979, leg. Mager; Aegean, Lindos, 2 Ex., 4.IV.1981, leg. Köstlin R.; Ägäische Inseln, Santorin, 2 Ex., 7.VII.1988, leg. fA; Epirus und Westmakedonien, Acheron, 1 Ex., 8.VIII.1983, leg. Günther H.; Epirus und Westmakedonien, Agios Germanos, 1 Ex., 9.IX.1986, leg. HE; Epirus, Parga, 1 Ex., 8.VIII.1983, leg. Günther H.; Kreta, Adele, 1 Ex., 4.IV.1986, leg. Egger M.; Kreta, Aghia Galini, 1 Ex., 5. V.1993, leg. Döberl M.; Kreta, Akra Koutri, 1 Ex., 5. V.1985, leg. HE; Kreta, Akrotiri / Stavros, 2 Ex., 5. V.1985, leg. HE; Kreta, Amoudara Heraklion, 1 Ex., 4.IV.1990; 8 Ex., 9.IX.2009; Kreta, Chania, 34 Ex., 4.IV.1983, leg. HE; Kreta, Chania / Akrotiri, 2 Ex., 7.VII.1986, leg. HE; Kreta, Elounda bei Aghios Nikolaus, 5 Ex., 4.IV.1983, leg.HE; Kreta, Ierapetra, 3 Ex., 4.IV.1983; 1 Ex., 7.VII.1986, leg.HE; Kreta, Kloster Christokalitissa, 1 Ex., 4.IV.1980, leg. HE; Kreta, Malia, 1 Ex., fA, leg. Franz H.; Kreta, Rethymnon, 1 Ex., 5. V.1985, leg. HE; Mittelgriechenland, Parnass, 1 Ex., 5. V.1987, leg. Freude, H.; Mittelgriechenland, Parnass, 1 Ex., 5. V.1988, leg. Meiser; Peloponnes, Kalogria, 4 Ex., 4.IV.1994, leg. HE; Peloponnes, Kefalonia / Poros, 1 Ex., 6. VI.2002, leg. HE; Peloponnes, Mani-Aeropoli, 1 Ex., 5. V.1994, leg. HE; Peloponnes, Skala S / Elos, 3 Ex., 4.IV.1994, leg. HE; Peloponnese, Argolis, 1 Ex., 4.IV.1994, leg. HE; Peloponnese, Mykene, 1 Ex., 5. V.1994, leg. HE; Peloponnisos Dytiki Ellada ke Ionio, Kap Ireo, 1 Ex., 4.IV.1994, leg. HE; Südliche Ägäis, Kos / Psalidi, 1 Ex., 8.VIII.2013, leg. HE.
TUR T ü r k e i: Ankara, Ankara S/ Gölbasi, 1 Ex., 6. VI.1960, leg. Seidenstücker G; Ankara, 1 Ex., 6. VI.1960, leg. Seidenstücker G; Bilecik, Pazaryeri, 1 Ex., 5. V.1966, leg. Klapperich J.; Van, Catak, 5 km N, 1 Ex., 8.VIII.1985, leg. Heinz.
description: Published as part of Heiss, Ernst, AndreasE, Lederwasch, Manfred & RomedU, 2023, Die Heteropterensammlung Ernst Heiss im Tiroler Landesmuseum Ferdinandeum. Teil XV: Pentatomomorpha VIII: Familien Scutelleridae, Dinidoridae, Urostylididae, Parastrachiidae, pp. 9-35 in Linzer biologische Beiträge 55 (1) on page 16, DOI: 10.5281/zenodo.10414730
Ruolo dell'Infliximab nella terapia della colite ulcerosa moderato-severa
Creators: name: Morselli, Claudia <1975>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2009
Subjects: MED/18 Chirurgia generale

description: Background: Almost 10-15% of patients with active Ulcerative Colitis are refractory to conventional therapy. Infliximab is a treatment of proven efficacy in this group of patients.
Aims: To evaluate the role of Inliximab in inducing and maintaining remission in patients with chronically active moderate-severe Ulcerative Colitis. Materials and methods: 53 patients were enrolled, 47 patients entered the study and were treated with a dose of 5 mg/kg. The remission was evaluated through endoscopy and clinical criteria. (Mayo Score). The primary endpoint were clinical and endoscopic remission in moderate-severe Ulcerative Colitis refractory to standard therapy, the secondary out point was the maintenance of remission in the long period. 
Results: 47 patients started the study, 43 completed the study, 4 dropped out for worsening disease or adverse events; 27 patients were treated with 3 infusions, 9 patients with 4 infusions, 7 patients with > o = 5 infusions. 34 /47 patients (72.3%) were responders 12 (25.5%) improved their symptoms, 22 ( 46.8%) were in remission after the treatment. Among the responders, 21/34 (61.8%) stopped the steroid therapy after 3 infusions, the others reduced the dose or maintained just topic therapy. 13/47 patients (27.7%) were non responders (p <0.001). After 3 months all 22 patients which had reached remission maintained low Mayo Score; 10/12 (83.3%) patients with clinical response maintained their low score, 2 relapsed . Conclusions: Infliximab is a valid therapy for the treatment of Ulcerative Colitis and can avoid surgery in selected patients.
Opción National Survey: Uruguay August 2013
Creators: name: Opción Consultores, In Bogliaccini, Juan, And Queirolo Rosario Laboratorio De Opinión Pública And Redes Sociales En Uruguay Collection (Social Networks And Public Opinion Lab Collection)
Publisher: name: Roper Center for Public Opinion Research
Year: 2021

description: 2014 general election; vote for or against parties; Colorado Party; National Party; Frente Amplio (a leftist political coalition); Independent Party; preferences between party candidates; Luis Lacalle Pou (National Party); Jorge Larrañaga (National Party); Sergio Abreu (National Party); Jorge Saravia (National Party); likeability of political leaders; party primaries; 2009 general election; vote for or against candidates; Pedro Bordaberry (Colorado Party); Tabaré Vázquez (Frente Amplio); Pablo Mieres (Independent Party); the economy; reducing poverty; security/crime; personal financial situation. Montevideo: 2015 municipal election; vote for or against parties; National Party; Colorado Party; Frente Amplio (a leftist political coalition); Partido de la Concertación (National and Colorado Parties running under a unified platform); Independent Party. National Agency for Research and Innovation (ANII) Collection.
Profilo genomico e di espressione dell'Osteosarcoma. Identificazione dei geni con alto grado di correlazione tra numero di copie ed espressione
Creators: name: Scrimieri, Francesca <1976>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2010
Subjects: MED/04 Patologia generale

description: To identify the regions of recurrent copy number abnormality in osteosarcoma and their effect on gene expression, we performed an integrated genome-wide high-resolution array CGH (aCGH) and gene expression profiling analysis on 40 human OS tissues and 12 OS cell lines. This analysis identified several recurrent chromosome regions that contain genes that show a gene dosage effect on gene expression. A further search, performed on those genes that were over-expressed and localized in the frequently amplified chromosomal regions, greatly reduced the number of candidate genes while their characterization using gene ontology (GO) analysis suggests the importance of the deregulation of the G1-to-S phase in the development of the disease. We also identified frequent deletions on 3q in the vicinity of LSAMP and performed a fine mapping analysis of the breakpoints. We precisely mapped the breakpoints in several instances and demonstrated that the majority do not involve the LSAMP gene itself, and that they appear to form by a process of non-homologous end joining.  In addition, aCGH analysis revealed frequent gains of IGF1R that were highly correlated with its protein level. Blockade of IGF1R in OS cell lines with high copy number gain led to growth inhibition suggesting that IGF1R may be a viable drug target in OS, particularly in patients with copy number driven overexpression of this receptor.
Estimates of above-ground biomass, net primary production and energy flows in 8 to 10 year old red alder (Alnus rubra Bong.) ecosystems
Creators: name: Smith, Nicholas John
Publisher: name: University of British Columbia
Year: 2010

description: Estimates of the above-ground net primary production, standing crop biomass and above-ground autotrophic energy flows were made for eight 0.04 ha plots in naturally seeded 8 to 10 yr old red alder (Alnus rubra Bong.) ecosystems near the University of British Columbia. All plots had closed canopies and covered a range of stem densities (8,204 to 42,971 stems per ha.) and site classes (good, medium and poor). The mean overstorey biomass was 82 mt/ha (range: 40-112 mt/ha) and current overstorey net productivity was 28,601 Kg/ha/yr (range: 17,802-40,831 Kg/ha/yr). Understorey biomass and productivity were 1.5 percent and 2 percent of the overstorey values respectively. Salmonberry (Rubus spectabilis Pursh) formed 68 percent of the understorey biomass and required at least 6 percent full-sunlight before growth was significant. Litter fall averaged 4,454 Kg/ha (range: 3,019-5,713 Kg/ha) and the undecomposed forest-floor (L layer), 5,811 Kg/ha. The plot averages for the biomass accumulation ratio of 2.86 Kg/Kg, for the leaf area index (one side only) of 7.64m²/m², for the foliage assimilation efficiency of 4.9 Kg/Kg and for the standing crop density index of 1.06 Kg/m³ were all in the upper ranges for cool-temperate deciduous forests. The mean caloric content of the above-ground tree biomass was 4.53 Kcal/g ash-containing matter. There was a significant increase in caloric values with increasing height in the tree and during the fall. Net conversion efficiency of visible radiation for the growing season (April-Oct.) was 2.9 percent (range: 1.8-4.2 percent). Energy invested in biomass (biocontent) averaged 37,203 2 Kcal/m² (67 percent stem, 33 percent crown) and energy invested in net primary production (production content) averaged 13,064 Kcal/m² (54 percent stem, 46 percent crown). Seventeen percent of production content was lost to tree-litter fall. The forest floor energy turnover was 1.2 yrs. Denser stands were characterized by a narrower range of dimensional classes, a higher mortality, a greater current net primary production and foliage efficiency, a higher solar energy conversion rate but a similar cumulative biomass to the less dense stands. Density-dependent growth models are hypothesized in which denser stands achieve full site occupancy at a later stage than less dense stands. The potentials of alder as a fuel and biomass-farm crop are discussed.
Employing Distances in Design-based Spatial Estimation
Creators: name: Vagheggini, Alessandro <1984>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: SECS-S/01 Statistica

description: In the last couple of decades we assisted to a reappraisal of spatial design-based techniques. Usually the spatial information regarding the spatial location of the individuals of a population has been used to develop efficient sampling designs. 
This thesis aims at offering a new technique for both inference on individual values and global population values able to employ the spatial information available before sampling at estimation level by rewriting a deterministic interpolator under a design-based framework. The achieved point estimator of the individual values is treated both in the case of finite spatial populations and continuous spatial domains, while the theory on the estimator of the population global value covers the finite population case only.
A fairly broad simulation study compares the results of the point estimator with the simple random sampling without replacement estimator in predictive form and the kriging, which is the benchmark technique for inference on spatial data.  The Monte Carlo experiment is carried out on populations generated according to different superpopulation methods in order to manage different aspects of the spatial structure. The simulation outcomes point out that the proposed point estimator has almost the same behaviour as the kriging predictor regardless of the parameters adopted for generating the populations, especially for low sampling fractions. Moreover, the use of the spatial information improves substantially design-based spatial inference on individual values.
Fannie Mae's National Housing Survey Monthly Home Purchase Sentiment Index (HPSI) and Key Indicators - November, 2023 (a subset of the complete monthly Fannie Mae National Housing Survey)
Creators: name: Foundation, Fannie Mae
Publisher: name: Roper Center for Public Opinion Research
Year: 2024

description: Economy on right or wrong track (3); personal financial situation (1); good or bad time to buy a house (3); good or bad time to sell a house (3); expect to move (1); direction house prices will go (3); direction rental prices will go (3); direction mortgage rates will go (1); difficulty getting a mortgage (1); home ownership (2).
Supplementary document for High-quality real-time full-color Fourier single-pixel imaging - 7400401.pdf
Creators: name: Huang, Shuyi
name: Liang, Kai
name: Zhu, Xinyi
name: Wu, Zhifeng
name: Deng, Zilin
name: long, sicheng
name: yang, siyi
name: Zhang, Zibang
name: Li, Ying
name: Zhong, Jingang
Publisher: name: Optica Publishing Group
Year: 2025
Subjects: Classical and Physical Optics

description: This document includes the photographs and the parameters of the 4-chip LED used in our experiments and the waveform of the raw samples acquired in the static imaging experiments.
The young Sun's XUV-activity as a constraint for lower CO$_2$-limits in the Earth's Archean atmosphere
Creators: name: Johnstone, C. P.
name: Lammer, H.
name: Kislyakova, K. G.
name: Scherf, M.
name: Güdel, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Despite their importance for determining the evolution of the Earth's atmosphere and surface conditions, the evolutionary histories of the Earth's atmospheric CO$_2$ abundance during the Archean eon and the Sun's activity are poorly constrained. In this study, we apply a state-of-the-art physical model for the upper atmosphere of the Archean Earth to study the effects of different atmospheric CO$_2$/N$_2$ mixing ratios and solar activity levels on the escape of the atmosphere to space. We find that unless CO$_2$ was a major constituent of the atmosphere during the Archean eon, enhanced heating of the thermosphere by the Sun's strong X-ray and ultraviolet radiation would have caused rapid escape to space. We derive lower limits on the atmospheric CO$_2$ abundance of approximately 40\% at 3.8~billion years ago, which is likely enough to counteract the faint young Sun and keep the Earth from being completely frozen. Furthermore, our results indicate that the Sun was most likely born as a slow to moderate {rotating young G-star} to prevent rapid escape, putting essential constraints on the Sun's activity evolution throughout the solar system's history. In case that there were yet unknown cooling mechanisms present in the Archean atmosphere, this could reduce our CO$_2$ stability limits, and it would allow a more active Sun.
description: 40 pages, 6 figures. This is a preprint accepted to be published in Earth and Planetary Science Letters
Radial motions and radial gas flows in local spiral galaxies
Creators: name: Di Teodoro, Enrico M.
name: Peek, Josh E. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We determine radial velocities and mass flow rates in a sample of 54 local spiral galaxies by modelling high-resolution and high-sensitivity data of the atomic hydrogen emission line. We found that, although radial inflow motions seem to be slightly preferred over outflow motions, their magnitude is generally small. Most galaxies show radial flows of only a few km/s throughout their HI disks, either inwards or outwards, without any clear increase in magnitude in the outermost regions, as we would expect for continuous radial accretion. Gas mass flow rates for most galaxies are less than 1 M$_\odot$/yr. Over the entire sample, we estimated an average inflow rate of 0.3 M$_\odot$/yr outside the optical disk and of 0.1 M$_\odot$/yr in the outskirts of the HI disks. These inflow rates are about 5-10 times smaller than the average star formation rate of 1.4 M$_\odot$/yr. Our study suggests that there is no clear evidence for systematic radial accretion inflows that alone could feed and sustain the star formation process in the inner regions of local spiral galaxies at its current rate.
description: Accepted for publications in ApJ. 12 pages, 6 figures + appendixes
Visualizing Quantum Well State Perturbations of Metallic Thin Films near Stacking Fault Defects
Creators: name: Khajetoorians, Alexander A.
name: Fiete, Gregory A.
name: Shih, Chih-Kang
Publisher: name: arXiv
Year: 2009
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We demonstrate that quantum well states (QWS) of thin Pb films are highly perturbed within the proximity of intrinsic film defects. Scanning Tunneling Spectroscopy (STM/STS) measurements indicate that the energy of these states have a strong distance dependence within 4 nm of the defect with the strongest energetic fluctuations equaling up to 100 meV. These localized perturbations show large spatially-dependent asymmetries in the LDOS around the defect site for each corresponding quantum well state. These energetic fluctuations can be described by a simple model which accounts for fluctuations in the confinement potential induced by topographic changes.
description: Updated Version
Ion implantation of organic thin films and electronic devices
Creators: name: Scidà, Alessandra <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: FIS/03 Fisica della materia

description: Organic semiconductors have great promise in the field of electronics due to their low cost in term of fabrication on large areas and their versatility to new devices, for these reasons they are becoming a great chance in the actual technologic scenery. Some of the most important open issues related to these materials are the effects of surfaces and interfaces between semiconductor and metals, the changes caused by different deposition methods and temperature, the difficulty related to the charge transport modeling and finally a fast aging with time, bias, air and light, that can change the properties very easily. In order to find out some important features of organic semiconductors I fabricated Organic Field Effect Transistors (OFETs), using them as characterization tools.
The focus of my research is to investigate the effects of ion implantation on organic semiconductors and on OFETs. Ion implantation is a technique widely used on inorganic semiconductors to modify their electrical properties through the controlled introduction of foreign atomic species in the semiconductor matrix. I pointed my attention on three major novel and interesting effects, that I observed for the first time following ion implantation of OFETs:
1)  modification of the electrical conductivity;
2)  introduction of stable charged species, electrically active with organic thin films;
3)  stabilization of transport parameters (mobility and threshold voltage).
I examined 3 different semiconductors: Pentacene, a small molecule constituted by 5 aromatic rings, Pentacene-TIPS, a more complex by-product of the first one, and finally an organic material called Pedot PSS, that belongs to the branch of the conductive polymers. My research started with the analysis of ion implantation of Pentacene films and Pentacene OFETs. Then, I studied totally inkjet printed OFETs made of Pentacene-TIPS or PEDOT-PSS, and the research will continue with the ion implantation on these promising organic devices.
Η μετανάστευση των Αρκάδων στις ΗΠΑ, τον Καναδά και την Αυστραλία (1900 – 1967)
Creators: name: Κοπίτα, Μαρία
Publisher: name: Πανεπιστήμιο Πελοποννήσου
Year: 2024
Subjects: subject: Έλληνες -- Ηνωμένες Πολιτείες Αμερικής -- Ιστορία -- 20ός αιώνας
subject: Έλληνες -- Καναδάς -- Ιστορία -- 20ός αιώνας
subject: Έλληνες -- Αυστραλία -- Ιστορία -- 20ός αιώνας
subject: Εμβάσματα μεταναστών -- Ελλάδα
subject: Αρκαδία (Ελλάδα) -- Αποδημία και εποίκηση -- Ιστορία -- 20ός αιώνας
subject: Αρκαδία (Ελλάδα) -- Ιστορία -- 20ός αιώνας
subject: Ομαδική μετανάστευση
subject: Aίτια μετανάστευσης
subject: Kοινοτικές οργανώσεις
subject: Iδρύματα
subject: Eκκλησίες
subject: Eμβάσματα
subject: Eπιχειρηματικός κόσμος
subject: Eθνική προσφορά
subject: Πόλεμοι
subject: Επιστροφή στην πατρίδα
subject: Mass migration
subject: Causes of migration
subject: Community organizations
subject: Institutions
subject: Churches
subject: Remittances
subject: Business community
subject: National contribution
subject: Wars
subject: Return to the homeland

description: Η πτυχιακή εργασία εξετάζει τη μετανάστευση από την Αρκαδία στην Αμερική και την Αυστραλία από τις αρχές του 19ου αιώνα έως το 1967. Αναλύει τα χρονικά διαστήματα, τους προορισμούς και τις κυριότερες πολιτικές και οικονομικές αιτίες της μετανάστευσης. Επιπλέον εξετάζει τα κριτήρια επιλογής των προορισμών από τους Αρκάδες και την πρόοδό τους στις νέες πατρίδες. Παράλληλα, σε αυτήν τονίζεται η συνεισφορά τους στην Ελλάδα μέσω εμβασμάτων και έργων, καθώς και η διαρκής νοσταλγία τους για την Αρκαδία. Είναι πρέπον να σημειωθεί πως πολλοί επέστρεψαν, για να πολεμήσουν και να υπερασπιστούν την ελευθερία της μητέρας πατρίδας.
Privacy Issues in Voice Assistant Ecosystems
Creators: name: Germanos, Georgios
name: Kavallieros, Dimitris
name: Kolokotronis, Nicholas
name: Georgiou, Nikolaos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Voice assistants have become quite popular lately while in parallel they are an important part of smarthome systems. Through their voice assistants, users can perform various tasks, control other devices and enjoy third party services. The assistants are part of a wider ecosystem. Their function relies on the users voice commands, received through original voice assistant devices or companion applications for smartphones and tablets, which are then sent through the internet to the vendor cloud services and are translated into commands. These commands are then transferred to other applications and services. As this huge volume of data, and mainly personal data of the user, moves around the voice assistant ecosystem, there are several places where personal data is temporarily or permanently stored and thus it is easy for a cyber attacker to tamper with this data, bringing forward major privacy issues. In our work we present the types and location of such personal data artifacts within the ecosystems of three popular voice assistants, after having set up our own testbed, and using IoT forensic procedures. Our privacy evaluation includes the companion apps of the assistants, as we also compare the permissions they require before their installation on an Android device.
Il filo di Arianna - Una ricerca multi ed interdisciplinare per il superamento degli handicap che la x fragile propone
Ariadne's Thread - A multi-disciplinary and inter institutional action research to overcoming the handicap related to X fragile Syndrome.
Creators: name: Imola, Alice <1980>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2013
Subjects: M-PED/03 Didattica e pedagogia speciale

description: Il seguente lavoro di tesi verte sulla ricerca-azione formazione triennale “Il Filo di Arianna” realizzata in convenzione tra Associazione Italiana Sindrome X Fragile e Dipartimento Di Scienze dell’Educazione – Università di Bologna, finalizzata alla superamento degli handicap che la X fragile propone. La ricerca ha un fuoco in Pedagogia Speciale e un carattere multidisciplinare e inter istituzionale grazie alla sinergia con l’area neuroriabilitativa (Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Pisana di Roma) e l’area della Psicologia Clinica (Ospedale Bambin Gesù di Roma).
Il lavoro di tesi descrive il percorso per giungere alle linee guida di intervento scaturite dalla ricerca, per il potenziamento cognitivo ed affettivo di bambini e persone con x fragile nei contesti di casa, scuola e tempo libero.
description: The thesis focuses on the three-year action research named "Ariadne's Thread" organized by the agreement between Associazione Italiana Sindrome X Fragile and the Dipartimento di Scienze dell’Educazione of the University of Bologna.
The main target of the research, focus on "Pedagogia Speciale" (Special Pedagogy and Didactics of Integration), is the overcoming of the handicap related to X fragile Syndrome. It has a  multi-disciplinary and inter-institutional character thanks to the synergy with the neurorehabilitation area(Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) San Raffaele Pisana di Roma) and the area of Clinical Psychology  (Ospedale Bambin Gesù di Roma).
The final project analyses the path to reach the guidelines for the cognitive and affective enhancement of X fragile children and people at home, school and during spare time.
The TELOS Collaboration Approach to Reproducibility and Open Science
Creators: name: Bennett, Ed
Publisher: name: Zenodo
Year: 2025

description: The TELOS Collaboration is committed to producing and analysing lattice data reproducibly, and sharing its research openly. In this document, we set out the ways that we make this happen, where there is scope for improvement, and how we plan to achieve this. This is intended to work both as a statement of policy, and a guide to practice for those beginning to work with us. Some details and recommendations are specific to the context in which the Collaboration works (such as references to requirements imposed by funders in the United Kingdom); however, most recommendations may serve as a template for other collaborations looking to make their own work reproducible. Full tutorials on every aspect of reproducibility are beyond the scope of this document, but we refer to other resources for further information.
Cluster Geometry & Inclinations from Deprojection Uncertainties
Creators: name: Chakrabarty, Dalia
name: De Filippis, Elisabetta
name: Russell, Helen
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: {The determination of cluster masses is a complex problem that would be aided by information about the cluster shape and orientation (along the line-of-sight).} {It is in this context, that we have developed a scheme for identifying the intrinsic morphology and inclination of a cluster, by looking for the signature of the true cluster characteristics in the inter-comparison of the different deprojected emissivity profiles (that all project to the same X-ray brightness distribution) and by using SZe data when available.} {We deproject the cluster X-ray surface brightness profile under the assumptions of four different geometry and inclination configurations for the observed system; these 4 configurations correspond to four extreme geometry+inclination scenarios. The deprojection in question is performed by the non-parametric algorithm DOPING. The formalism is tested with model systems and then is applied to a sample of 24 clusters. While the shape determination is possible by implementing the X-ray brightness alone, the estimation of the inclination is usually markedly improved by the usage of SZe data that is available for the considered sample.}{We spot 8 prolate systems, 1 oblate and 15 of the clusters in our sample as triaxial. In fact, for systems identified as triaxial, we are able to discern how the three semi-axes lengths compare with each other. This, when compounded by the information about the line-of-sight extent, allows us to constrain the inclination quite tightly and offers the two intrinsic axial ratios of the triaxial systems.}{}
description: 15 pages of text, 6 figures, 4 tables, 1` appendix, accepted for publication in A&A
Odontoscelis hispanica GOELLNER-SCHEIDING 1987
Creators: name: Heiss, Ernst
name: AndreasE
name: Lederwasch, Manfred
name: RomedU
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Scutelleridae
Odontoscelis
Odontoscelis hispanica

description: Odontoscelis hispanica GOELLNER- SCHEIDING, 1987
ALB A l b a n i e n: Vlora, Llogara Pass, 1 Ex., 7.VII.2019, leg. Eckelt A.
ESP S p a n i e n: Andalusien, Ronda/ Umgebung, 1 Ex., 7.VII.1975, leg. Schacht W.; Gerona, La Escala/ Gerona Umgebung, 45 Ex., 8.VIII.1977, leg. HE.
FRA F r a n k r e i c h: Provence-Alpes-Côte d'Azur, Sillans-la-Cascade, 3 Ex., 5.V.2017, leg. LM.
description: Published as part of Heiss, Ernst, AndreasE, Lederwasch, Manfred & RomedU, 2023, Die Heteropterensammlung Ernst Heiss im Tiroler Landesmuseum Ferdinandeum. Teil XV: Pentatomomorpha VIII: Familien Scutelleridae, Dinidoridae, Urostylididae, Parastrachiidae, pp. 9-35 in Linzer biologische Beiträge 55 (1) on page 17, DOI: 10.5281/zenodo.10414730
Non-intrusive polynomial chaos expansion for topology optimization using polygonal meshes
Creators: name: Cuellar, Nilton
name: Pereira, Anderson
name: Menezes, Ivan F. M.
name: Cunha, Americo
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: Optimization and Control (math.OC)
subject: Computation (stat.CO)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: I.6.5
subject: 90-08

description: This paper deals with the applications of stochastic spectral methods for structural topology optimization in the presence of uncertainties. A non-intrusive polynomial chaos expansion is integrated into a topology optimization algorithm to calculate low-order statistical moments of the mechanical-mathematical model response. This procedure, known as robust topology optimization, can optimize the mean of the compliance while simultaneously minimizing its standard deviation. In order to address possible variabilities in the loads applied to the mechanical system of interest, magnitude and direction of the external forces are assumed to be uncertain. In this probabilistic framework, forces are described as a random field or a set of random variables. Representation of the random objects and propagation of load uncertainties through the model are efficiently done through Karhunen-Loève and polynomial chaos expansions. We take advantage of using polygonal elements, which have been shown to be effective in suppressing checkerboard patterns and reducing mesh dependency in the solution of topology optimization problems. Accuracy and applicability of the proposed methodology are demonstrated by means of several topology optimization examples. The obtained results, which are in excellent agreement with reference solutions computed via Monte Carlo method, show that load uncertainties play an important role in optimal design of structural systems, so that they must be taken into account to ensure a reliable optimization process.
Simulation Studies of Nanomagnet-Based Architecture
Creators: name: Carlton, David
name: Emley, Nathan
name: Tuchfeld, Eduard
name: Bokor, Jeffrey
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report a simulation study on interacting ensembles of Co nanomagnets that can perform basic logic operations and propagate logic signals, where the state variable is the magnetization direction. Dipole field coupling between individual nanomagnets drives the logic functionality of the ensemble and coordinated arrangements of the nanomagnets allow for the logic signal to propagate in a predictable way. Problems with the integrity of the logic signal arising from instabilities in the constituent magnetizations are solved by introducing a biaxial anisotropy term to the Gibbs magnetic free energy of each nanomagnet. The enhanced stability allows for more complex components of a logic architecture capable of random combinatorial logic, including horizontal wires, vertical wires, junctions, fanout nodes, and a novel universal logic gate. Our simulations define the focus of scaling trends in nanomagnet-based logic and provide estimates of the energy dissipation and time per nanomagnet reversal.
Fluctuations in Gene Regulatory Networks as Gaussian Colored Noise
Creators: name: Huang, Ming-Chang
name: Wu, Jinn-Wen
name: Luo, Yu-Pin
name: Petrosyan, Karen G.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: The study of fluctuations in gene regulatory networks is extended to the case of Gaussian colored noise. Firstly, the solution of the corresponding Langevin equation with colored noise is expressed in terms of an Ito integral. Then, two important lemmas concerning the variance of an Ito integral and the covariance of two Ito integrals are shown. Based on the lemmas, we give the general formulae for the variances and covariance of molecular concentrations for a regulatory network near a stable equilibrium explicitly. Two examples, the gene auto-regulatory network and the toggle switch, are presented in details. In general, it is found that the finite correlation time of noise reduces the fluctuations and enhances the correlation between the fluctuations of the molecular components.
description: 10 pages, 4 figures
Odontoscelis minuta JAKOVLEV 1882
Creators: name: Heiss, Ernst
name: AndreasE
name: Lederwasch, Manfred
name: RomedU
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Scutelleridae
Odontoscelis
Odontoscelis minuta

description: Odontoscelis minuta JAKOVLEV, 1882
GRC G r i e c h e n l a n d: Epirus und Westmakedonien, Acheron, 2 Ex., 8.VIII.1983, leg. Günther H.; Kreta, Akra Koutri, 1 Ex., 5. V.1985, leg. HE; Kreta, Akrotiri / Agia Triada, 1 Ex., 4.IV.1990, leg. HE; Kreta, Chania, 2 Ex., 4.IV.1983, leg. HE; Kreta, Chania / Akrotiri, 2 Ex., 7.VII.1986, leg. HE; Kreta, Elounda bei Aghios Nikolaus, 4 Ex., 4.IV.1983, leg. HE; Kreta, Ierapetra, 1 Ex., 4.IV.1980; 2 Ex., 4.IV.1983; 3 Ex., 7.VII.1986, leg. HE; Kreta, Krotos / Mt. Asterousia, 1 Ex., 4.IV.1990, leg. HE; Kreta, Samariaschlucht, 1 Ex., 7.VII.1986, leg. HE.
ITA I t a l i e n: Basilikata, Piano Ruggio/ Malvento, 1 Ex., 7.VII.2016, leg. LM.
TUR T ü r k e i: Hatay, Nurdagi Gecidi, Amanus N, 1 Ex., 5.V.1970, leg. HC.
description: Published as part of Heiss, Ernst, AndreasE, Lederwasch, Manfred & RomedU, 2023, Die Heteropterensammlung Ernst Heiss im Tiroler Landesmuseum Ferdinandeum. Teil XV: Pentatomomorpha VIII: Familien Scutelleridae, Dinidoridae, Urostylididae, Parastrachiidae, pp. 9-35 in Linzer biologische Beiträge 55 (1) on page 18, DOI: 10.5281/zenodo.10414730