cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Robust estimation of position-dependent anisotropic diffusivity tensors from stochastic trajectories
Creators: name: Domingues, Tiago S.
name: Coifman, Ronald
name: Haji-Akbari, Amir
Publisher: name: arXiv
Year: 2023
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Materials under confinement can possess properties that deviate considerably from their bulk counterparts. Indeed, confinement makes all physical properties position-dependent and possibly anisotropic, and characterizing such spatial variations and directionality is an intense area of focus in experimental and computational studies of confined matter. While this task is fairly straightforward for simple mechanical observables, it is far more daunting for transport properties such as diffusivity that can only be estimated from autocorrelations of mechanical observables. For instance, there are well established methods for estimating diffusivity from experimentally observed or computationally generated trajectories in the bulk. No rigorous generalizations of such methods, however, exist for confined systems. In this work, we present two filtered covariance estimators for computing anisotropic and position-dependent diffusivity tensors and validate them by applying them to stochastic trajectories generated according to known diffusivity profiles. These estimators can accurately capture spatial variations spanning over several orders of magnitude and assuming different functional forms. Our approach is also very robust to implementation details such as the localization function and time discretization and performs significantly better than estimators that are solely based on local covariance. Moreover, the kernel function does not have to be localized and can instead belong to a dictionary of orthogonal functions. Therefore, the proposed estimator can be readily used to obtain functional estimates of diffusivity rather than a tabulated collection of pointwise estimates. Nonetheless, the susceptibility of the proposed estimators to time discretization is higher close to hard boundaries. We demonstrate this heightened susceptibility to be common among all covariance-based estimators.
description: 19 pages, 13 figures, 1 table, 2 algorithms
Directed transport of two interacting particles in a washboard potential
Creators: name: Hennig, D.
name: Burbanks, A. D.
name: Osbaldestin, A. H.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the conservative and deterministic dynamics of two nonlinearly interacting particles evolving in a one-dimensional spatially periodic washboard potential. A weak tilt of the washboard potential is applied biasing one direction for particle transport. However, the tilt vanishes asymptotically in the direction of bias. Moreover, the total energy content is not enough for both particles to be able to escape simultaneously from an initial potential well; to achieve transport the coupled particles need to interact cooperatively. For low coupling strength the two particles remain trapped inside the starting potential well permanently. For increased coupling strength there exists a regime in which one of the particles transfers the majority of its energy to the other one, as a consequence of which the latter escapes from the potential well and the bond between them breaks. Finally, for suitably large couplings, coordinated energy exchange between the particles allows them to achieve escapes -- one particle followed by the other -- from consecutive potential wells resulting in directed collective motion. The key mechanism of transport rectification is based on the asymptotically vanishing tilt causing a symmetry breaking of the non-chaotic fraction of the dynamics in the mixed phase space. That is, after a chaotic transient, only at one of the boundaries of the chaotic layer do resonance islands appear. The settling of trajectories in the ballistic channels associated with transporting islands provides long-range directed transport dynamics of the escaping dimer.
Dissociation between memory accuracy and memory confidence following bilateral parietal lesions
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2010
Subjects: metamemory
neuropsychology
recall
recollection
source memory

description: Numerous functional neuroimaging studies have observed lateral parietal lobe activation during memory tasks: a surprise to clinicians who have traditionally associated the parietal lobe with spatial attention rather than memory. Recent neuropsychological studies examining episodic recollection after parietal lobe lesions have reported differing results. Performance was preserved in unilateral lesion patients on source memory tasks involving recollecting the context in which stimuli were encountered, and impaired in patients with bilateral parietal lesions on tasks assessing free recall of autobiographical memories. Here, we investigated a number of possible accounts for these differing results. In 3 experiments, patients with bilateral parietal lesions performed as well as controls at source recollection, confirming the previous unilateral lesion results and arguing against an explanation for those results in terms of contralesional compensation. Reducing the behavioral relevance of mnemonic information critical to the source recollection task did not affect performance of the bilateral lesion patients, indicating that the previously observed reduced autobiographical free recall might not be due to impaired bottom-up attention. The bilateral patients did, however, exhibit reduced confidence in their source recollection abilities across the 3 experiments, consistent with a suggestion that parietal lobe lesions might lead to impaired subjective experience of rich episodic recollection.
Metrologia dei campi di radiazioni di bassa energia
Creators: name: Mariotti, Francesca <1976>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2008
Subjects: ING-IND/20 Misure e strumentazione nucleari

description: The conversion coefficients from air kerma to ICRU operational dose equivalent quantities for
ENEA’s realization of the X-radiation qualities L10-L35 of the ISO “Low Air Kerma rate” series
(L), N10-N40 of the ISO “Narrow spectrum” series (N) and H10-H60 of the ISO “High Air-kerma
rate” (H) series and two beams at 5 kV and 7.5 kV were determined by utilising X-ray spectrum
measurements.
The pulse-height spectra were measured using a planar high-purity germanium spectrometer
(HPGe) and unfolded to fluence spectra using a stripping procedure then validate with using Monte
Carlo generated data of the spectrometer response.
HPGe portable detector has a diameter of 8.5 mm and a thickness of 5 mm. The entrance window of
the crystal is collimated by a 0.5 mm thick Aluminum ring to an open diameter of 6.5 mm. The
crystal is mounted at a distance of 5 mm from the Berillium window (thickness 25.4 micron).
The Monte Carlo method (MCNP-4C) was used to calculate the efficiency, escape and Compton
curves of a planar high-purity germanium detector (HPGe) in the 5-60 keV energy. These curves
were used for the determination of photon spectra produced by the X-ray machine SEIFERT
ISOVOLT 160 kV in order to allow a precise characterization of photon beams in the low energy
range, according to the ISO 4037. The detector was modelled with the MCNP computer code and
validated with experimental data.
To verify the measuring and the stripping procedure, the first and the second half-value layers and
the air kerma rate were calculated from the counts spectra and compared with the values measured
using an a free-air ionization chamber. For each radiation quality, the spectrum was characterized
by the parameters given in ISO 4037-1. The conversion coefficients from the air kerma to the ICRU
operational quantities Hp(10), Hp(0.07), H’(0.07) and H*(10) were calculated using monoenergetic
conversion coefficients. The results are discussed with respect to ISO 4037-4, and compared with
published results for low-energy X-ray spectra.
The main motivation for this work was the lack of a treatment of the low photon energy region
(from a few keV up to about 60 keV).
Separate continuity of the Lempert function of the spectral ball
Creators: name: Nikolov, Nikolai
name: Thomas, Pascal J.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics

description: We find all matrices $A$ from the spectral unit ball $Ω_n$ such that the Lempert function $l_{Ω_n}(A,\cdot)$ is continuous.
description: small corrections; one reference is added
Which Factors Predict the Chat Experience of a Natural Language Generation Dialogue Service?
Creators: name: Chen, Eason
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: In this paper, we proposed a conceptual model to predict the chat experience in a natural language generation dialog system. We evaluated the model with 120 participants with Partial Least Squares Structural Equation Modeling (PLS-SEM) and obtained an R-square (R2) with 0.541. The model considers various factors, including the prompts used for generation; coherence, sentiment, and similarity in the conversation; and users' perceived dialog agents' favorability. We then further explore the effectiveness of the subset of our proposed model. The results showed that users' favorability and coherence, sentiment, and similarity in the dialogue are positive predictors of users' chat experience. Moreover, we found users may prefer dialog agents with characteristics of Extroversion, Openness, Conscientiousness, Agreeableness, and Non-Neuroticism. Through our research, an adaptive dialog system might use collected data to infer factors in our model, predict the chat experience for users through these factors, and optimize it by adjusting prompts.
description: CHI EA'23, April 23-28, 2023, Hamburg, Germany
Analysis of multiplex gene expression maps obtained by voxelation
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2009
Subjects: Animals
Brain
Cluster Analysis
Computational Biology
Gene Expression
Mice

description: BACKGROUND: Gene expression signatures in the mammalian brain hold the key to understanding neural development and neurological disease. Researchers have previously used voxelation in combination with microarrays for acquisition of genome-wide atlases of expression patterns in the mouse brain. On the other hand, some work has been performed on studying gene functions, without taking into account the location information of a gene's expression in a mouse brain. In this paper, we present an approach for identifying the relation between gene expression maps obtained by voxelation and gene functions. RESULTS: To analyze the dataset, we chose typical genes as queries and aimed at discovering similar gene groups. Gene similarity was determined by using the wavelet features extracted from the left and right hemispheres averaged gene expression maps, and by the Euclidean distance between each pair of feature vectors. We also performed a multiple clustering approach on the gene expression maps, combined with hierarchical clustering. Among each group of similar genes and clusters, the gene function similarity was measured by calculating the average gene function distances in the gene ontology structure. By applying our methodology to find similar genes to certain target genes we were able to improve our understanding of gene expression patterns and gene functions. By applying the clustering analysis method, we obtained significant clusters, which have both very similar gene expression maps and very similar gene functions respectively to their corresponding gene ontologies. The cellular component ontology resulted in prominent clusters expressed in cortex and corpus callosum. The molecular function ontology gave prominent clusters in cortex, corpus callosum and hypothalamus. The biological process ontology resulted in clusters in cortex, hypothalamus and choroid plexus. Clusters from all three ontologies combined were most prominently expressed in cortex and corpus callosum. CONCLUSION: The experimental results confirm the hypothesis that genes with similar gene expression maps might have similar gene functions. The voxelation data takes into account the location information of gene expression level in mouse brain, which is novel in related research. The proposed approach can potentially be used to predict gene functions and provide helpful suggestions to biologists.
Irreversible Aging Dynamics and Generic Phase Behavior of Aqueous Suspensions of Laponite
Creators: name: Shahin, A.
name: Joshi, Yogesh M.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: In this work we study the aging behavior of aqueous suspension of Laponite having 2.8 weight % concentration using rheological tools. At various salt concentration all the samples demonstrate orientational order when observed using crossed polarizers. In rheological experiments we observe inherent irreversibility in the aging dynamics which forces the system not to rejuvenate to the same state in the shear melting experiment carried out at a later date since preparation. The extensive rheological experiments carried out as a function of time elapsed since preparation demonstrate the self similar trend in the aging behavior irrespective of the concentration of salt. We observe that the exploration of the low energy states as a function of aging time is only kinetically affected by the presence of salt. We estimate that the energy barrier to attain the low energy states decreases linearly with increase in the concentration of salt. The observed superposition of all the elapsed time and the salt concentration dependent data suggests that the aging that occurs in low salt concentration systems over a very long period is qualitatively similar to the aging behavior observed in systems with high salt concentration over a shorter period.
description: 27 pages, 8 figures. Langmuir, in press
Asymptotyczna teoria reprezentacji grup permutacji (Asymptotic representation theory of symmetric groups)
Creators: name: Sniady, Piotr
Publisher: name: arXiv
Year: 2009
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 20C30, 05E10

description: This article (written in Polish) is aimed for a wide mathematical audience. It is intended as an introductory text concerning problems of the asymptotic theory of symmetric groups.
Quantum-Squeezing-Induced Point-Gap Topology and Skin Effect
Creators: name: Wan, Liang-Liang
name: Lü, Xin-You
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We theoretically predict the squeezing-induced point-gap topology together with a {\it symmetry-protected $\mathbb{Z}_2$ skin effect} in a one-dimensional (1D) quadratic-bosonic system (QBS). Protected by a time-reversal symmetry, such a topology is associated with a novel $\mathbb{Z}_2$ invariant (similar to quantum spin-Hall insulators), which is fully capable of characterizing the occurrence of $\mathbb{Z}_2$ skin effect. Focusing on zero energy, the parameter regime of this skin effect in the phase diagram just corresponds to a {\it real-gap and point-gap coexisted topological phase}. Moreover, this phase associated with the {\it symmetry-protected $\mathbb{Z}_2$ skin effect} is experimentally observable by detecting the steady-state power spectral density. Our work is of fundamental interest in enriching non-Bloch topological physics by introducing quantum squeezing, and has potential applications for the engineering of symmetry-protected sensors based on the $\mathbb{Z}_2$ skin effect.
description: 6 pages, 4 figures + Supplemental Material
When Great Scholars Disagree
Creators: name: Sica, Alan
Publisher: name: Università degli Studi di Firenze
Year: 2014

description: When Weber analyzed Judaism as part of his series concerning global religious practices and the economic arrangements that accompanied them, he decided to employ the term “pariah” as an analytic device, but without any of the pejorative connotations which are attached to the word today. Had he used instead Gastvolk (guest people) throughout his book rather than “pariah-people,” many subsequent scholars would not have objected to Ancient Judaism in the way they have over the last 90 years. Arnaldo Momigliano, probably the greatest classical historian of the mid-20th century, respected Weber’s work, but also took exception to his use of “pariah” regarding Judaism. This article investigates this troubling term and the scholarship that it inspired.
description: SocietàMutamentoPolitica, Vol 5, N° 9 (2014): 1864-2014 – Max Weber: a Contemporary Sociologist
Probing the nanosecond dynamics of a designed three-stranded beta-sheet with a massively parallel molecular dynamics simulation
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2009
Subjects: Ultrafast folding
downhill folding
DPDP
DPDP-II
designed beta-sheet proteins

description: Recently a temperature-jump FTIR study of a designed three-stranded sheet showing a fast relaxation time of ∼140 ± 20 ns was published. We performed massively parallel molecular dynamics simulations in explicit solvent to probe the structural events involved in this relaxation. While our simulations produce similar relaxation rates, the structural ensemble is broad. We observe the formation of turn structure, but only very weak interaction in the strand regions, which is consistent with the lack of strong backbone-backbone NOEs in previous structural NMR studies. These results suggest that either DPDP-II folds at time scales longer than 240 ns, or that DPDP-II is not a well-defined three-stranded β-sheet. This work also provides an opportunity to compare the performance of several popular forcefield models against one another.
Capacity Bounded Grammars and Petri Nets
Creators: name: Stiebe, Ralf
name: Turaev, Sherzod
Publisher: name: arXiv
Year: 2009
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences

description: A capacity bounded grammar is a grammar whose derivations are restricted by assigning a bound to the number of every nonterminal symbol in the sentential forms. In the paper the generative power and closure properties of capacity bounded grammars and their Petri net controlled counterparts are investigated.
title: Abordaje interdisciplinar del diagnóstico no quirúrgico de la patología pulmonar difusa: Criobiopsia Transbronquial.
Creators: name: Echevarria Uraga, José Javier
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Haemorrhage
subject: Balloon occlusion
subject: Biopsy
subject: Technical aspects
subject: Fluoroscopy
subject: Thorax
subject: Interventional non-vascular

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Las enfermedades pulmonares difusas constituyen un grupo heterogéneo de patologías,
para cuyo tratamiento es preciso establecer un adecuado diagnóstico histológico.
Clásicamente,
la obtención de las muestras tisulares pulmonares se consigue...
A Charlier-Parseval approach to Poisson approximation and its applications
Creators: name: Zacharovas, Vytas
name: Hwang, Hsien-Kuei
Publisher: name: arXiv
Year: 2008
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 62E17

description: A new approach to Poisson approximation is proposed. The basic idea is very simple and based on properties of the Charlier polynomials and the Parseval identity. Such an approach quickly leads to new effective bounds for several Poisson approximation problems. A selected survey on diverse Poisson approximation results is also given.
Geographic disparities in colorectal cancer survival
Creators: name: (:Unkn) Unknown
Publisher: name: My University
Year: 2009
Subjects: subject: Aged
subject: Aged, 80 and over
subject: Cohort Studies
subject: Colorectal Neoplasms
subject: Demography
subject: FOS: Sociology
subject: Female
subject: Health Status Disparities
subject: Humans
subject: Male
subject: Middle Aged
subject: New Jersey
subject: Registries
subject: Risk Factors
subject: Socioeconomic Factors
subject: Survival Rate

description: Background: Examining geographic variation in cancer patient survival can help identify important prognostic factors that are linked by geography and generate hypotheses about the underlying causes of survival disparities. In this study, we apply a recently developed spatial scan statistic method, designed for time-to-event data, to determine whether colorectal cancer (CRC) patient survival varies by place of residence after adjusting survival times for several prognostic factors. Methods: Using data from a population-based, statewide cancer registry, we examined a cohort of 25,040 men and women from New Jersey who were newly diagnosed with local or regional stage colorectal cancer from 1996 through 2003 and followed to the end of 2006. Survival times were adjusted for significant prognostic factors (sex, age, stage at diagnosis, race/ethnicity and census tract socioeconomic deprivation) and evaluated using a spatial scan statistic to identify places where CRC survival was significantly longer or shorter than the statewide experience. Results: Age, sex and stage adjusted survival times revealed several areas in the northern part of the state where CRC survival was significantly different than expected. The shortest and longest survival areas had an adjusted 5-year survival rate of 73.1% (95% CI 71.5, 74.9) and 88.3% (95% CI 85.4, 91.3) respectively, compared with the state average of 80.0% (95% CI 79.4, 80.5). Analysis of survival times adjusted for age, sex and stage as well as race/ethnicity and area socioeconomic deprivation attenuated the risk of death from CRC in several areas, but survival disparities persisted. Conclusion: The results suggest that in areas where additional adjustments for race/ethnicity and area socioeconomic deprivation changed the geographic survival patterns and reduced the risk of death from CRC, the adjustment factors may be contributing causes of the disparities. Further studies should focus on specific and modifiable individual and neighborhood factors in the high risk areas that may affect a person's chance of surviving cancer. © 2009 Henry et al; licensee BioMed Central Ltd.
Photometric Search for Exomoons by using Convolutional Neural Networks
Creators: name: Weghs, Lukas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Machine Learning (cs.LG)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Until now, there is no confirmed moon beyond our solar system (exomoon). Exomoons offer us new possibly habitable places which might also be outside the classical habitable zone. But until now, the search for exomoons needs much computational power because classical statistical methods are employed. It is shown that exomoon signatures can be found by using deep learning and Convolutional Neural Networks (CNNs), respectively, trained with synthetic light curves combined with real light curves with no transits. It is found that CNNs trained by combined synthetic and observed light curves may be used to find moons bigger or equal to roughly 2-3 earth radii in the Kepler data set or comparable data sets. Using neural networks in future missions like Planetary Transits and Oscillation of stars (PLATO) might enable the detection of exomoons.
description: 11 pages, 4 figures
title: Resonancia magnética en las anomalías del tendón rotuliano
Creators: name: Prieto Santa Cruz, Cristina
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: MR
subject: Musculoskeletal soft tissue

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Describir e ilustrar el espectro de hallazgos radiológicos de las anomalías del tendón o ligamento rotuliano,
discutiendo los posibles diagnósticos...
title: Kształcenie doktorantów
title: Praktyczny przewodnik po przepisach
titleType: Subtitle
Creators: name: Plona, Natalia
Publisher: name: Wydawnictwo Politechniki Łódzkiej
Year: 2020

description: Przedkładana monografia to wynik prac zespołu ludzi, których cechuje doświadczenie w działalności samorządowej oraz starania o realne zmiany w obszarze kształcenia doktorantów w Polsce. Fakt ten pozwala autorom nie tylko rzetelnie przedstawiać praktyczne aspekty regulacji różnych obszarów, ale także analizować przyjęte rozwiązania.
title: Imagen de la adenomatosis hepática en edad pediátrica: correlación con histología
Creators: name: Sangüesa Nebot, Carmen Cinta
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Paediatric
subject: Abdomen
subject: Liver
subject: MR
subject: CT
subject: Ultrasound-Colour Doppler

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
IMAGENDE LA ADENOMATOSIS HEPÁTICA EN EDAD PEDIÁTRICA: correlación con histología OBJETIVOS DOCENTES: Dar a conocer la adenomatosis hepática múltiple,
patología muy infrecuente,
más aun dentro de la edad pediátrica Presentar los hallazgos de...
Axial-vector charges of the spin $\frac{1}{2}^+$ and spin $\frac{3}{2}^+$ light and charmed baryons in the SU(4) chiral quark constituent model
Creators: name: Dahiya, Harleen
name: Dutt, Suneel
name: Kumar, Arvind
name: Randhawa, Monika
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Following the first clear evidence of the presence of intrinsic charm contribution in the proton, the axial-vector charges of the light and charmed baryons are investigated in the framework of $SU(4)$ chiral constituent quark model after including the explicit contributions from the $u\bar u $, $d\bar d $, $s\bar s $ and $c\bar c $ fluctuations. The axial-vector charges having physical significance correspond to the generators of the $SU(4)$ group with flavor singlet $λ^0$, flavor isovector $λ^3$, flavor hypercharge $λ^8$ and flavor charmed $λ^{15}$ combinations of axial-vector current at zero momentum transfer. In contemplation to further understand the $Q^2$ dependence of these charges, we have used the conventionally established dipole form of parametrization. The baryons considered here are the spin $\frac{1}{2}^+$ and spin $\frac{3}{2}^+$ multiplets decomposed further depending on the charm content of baryons.
description: 37 pages, 6 figures. To appear in The European Physical Journal Plus
title: ¿Que el radiólogo te ha quitado el dolor del hombro?
Creators: name: Sánchez Crespo, Juan Manuel
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Musculoskeletal soft tissue
subject: Ultrasound
subject: Puncture
subject: Calcifications / Calculi

description: Objetivos
Material y método
Resultados
Conclusiones
Bibliografía
description: Objetivos:
Valorar los resultados de la técnica de punción-lavado ecoguiado para el tratamiento de la tendinopatía calcificante del manguito rotador en los pacientes de nuestro ámbito...
The partial characterization of the epithelial glycoprotein from normal and diseased colons
Creators: name: Tsang, Wai-Chiu
Publisher: name: University of British Columbia
Year: 2010

description: This study reports the isolation, fractionation and chemical characterization of apparently homogenous and undegraded epithelial glycoproteins from normal human colons and from patients with ulcerative colitis, Crohn's disease and ischaemic colitis of the colon. Colonic epithelial cells were removed from each specimen by shaking with EDTA and the glycoproteins were extracted'from the sonated cells with 1M NaCl. Combined agarose gel and DEAE cellulose chromatography of the pooled crude extract from each normal and diseased sample yielded two apparently homogeneous fractions A and B. Agarose gel electrophoresis revealed that the mobility of the second DEAE fraction (B) was about the same as that of heparin and twice as fast as that of fraction A. Application of gas-liquid chromatography, UV-spectroscopy, agarose gel electrophoresis at pH 3.0, colorimetric hexose analysis, phosphorus and Indole assays suggested that fraction B was DNA. Fraction A glycoproteins appeared to be homogeneous by DEAE chromatography, agarose gel and cellulose acetate electrophoreses at pH 8.8. Chemical analyses of these glycoproteins revealed the presence of fucose, galactose, hexosamine, sialic acid, protein and little or no phosphorus. The molar ratio of the carbohydrate components of each sample was significantly different from that of the normal, and it varied among the different diseases. In each of the glycoproteins studied, 4 different types of sialic acids were found in different quantities and they were: (1)unsubstituted or C9 substituted sialic acids, (ii) sialic acids substituted at C4 and or at C9, (iii) sialic acids substituted at C7 and or C8, (iv) sialic acids substituted at C4 and at C7 and or C8. Gas-liquid chromatography revealed that these substituents were alkaline-labile O-acetyl groups. The significance of the above differences were discussed.
Rapidity correlations of protons from a fragmented fireball
Creators: name: Schulc, Martin
name: Tomasik, Boris
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate proton rapidity correlations for a fireball that fragments due to non-equilibrium effects at the phase transition from deconfined to hadronic phase. Such effects include spinodal fragmentation in case of first order phase transition at lower collision energies, and cavitation due to sudden rise of the bulk viscosity at the crossover probed at RHIC and the LHC. Our study is performed on samples of Monte Carlo events. Correlation function in relative rapidity appears to be a sensitive probe of fragmentation. We show that resonance decays make the strength of the correlation even stronger.
description: 7 pages, 6 figures
Maneuvering Digital Watermarking In Face Recognition
Creators: name: Shahin, Osama R.
name: Azim, Zeinab M. Abdel
name: Taloba, Ahmed I
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: The challenges faced in the digital world are many, which could be resolved with some biometric recognition methods. These biometric recognition methods are encompassed within watermarking technology, steganography, cryptography, and many other schemes of security. These methods assist in securing digital images with the authentication of their owner. This paper briefly contextualizes the digital watermarking technique, which is referred to as Natural Preserving Transform (NPT) and Hartley Transform, which is endeavored in the face recognition process. The non-blind extraction and quasi-blind extraction techniques are used for extracting the watermark from the image in the proposed system. This paper articulates the application of this watermarking technique employed in face recognition through watermarking of various face images to multiple backgrounds encompassing gray-scale images. Natural Preserve Transform is employed as a part of the fuzzy logic watermarking. In the proposed system, NPT is employed for encoding a logo of grayscale watermarking text or logo image to a host image located anywhere. The robustness and performance of the proposed system are experimentally tested with the help of image processing operations like image compression, noise degradation, cropping. Due to its unique feature of uniform distribution of face images, this technique is selected among other methods in digital watermarking. The system is tested for its efficiency with experimental analyses, which could be confirmed with the results of the simulation. The above system is proposed for copyright protection, authentication, and security requirements.
description: 9 pages, 7 figures, Published with International Journal of Engineering Trends and Technology (IJETT)
title: Trombosis Venosa Cerebral: Caves para el Diagnóstico
Creators: name: Redondo Buil, Pilar
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Neuroradiology brain
subject: Anatomy
subject: Education
subject: MR-Angiography
subject: CT-Angiography
subject: Embolism / Thrombosis
subject: Ischaemia / Infarction

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
-Describir la anatomía del sistema venoso superficial y profundo cerebral.
-Describir los hallazgos radiológicos en RM,
AngioRm,
TAC y AngioTac de la trombosis venosa cerebral.
- Valorar los problemas diagnósticos,
así como las limitaciones de...
title: Stop radiación: Entero Rm. Diagnóstico y seguimiento de la enfermedad de Chron
Creators: name: Redondo Buil, Pilar
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Motility
subject: Diagnostic procedure
subject: Contrast agent-oral
subject: MR
subject: Anatomy
subject: Contrast agents
subject: Abdomen

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
Describir la técnica de EnteroRM. Describir los signos y hallazgos radiológicos típicos por RM de la enfermedad de Crohn. Describir los subtipos en los que se clasifica la enfermedad de Crohn. Mostrar las posibilidades de la EnteroRM en la...
title: Signos radiológicos de actividad inflamatoria en la Espondilitis Anquilopoyética: hallazgos por RM en raquis y sacroilíacas.
Creators: name: Elía Martínez, Isabel
Publisher: name: Sociedad Española de Radiología Médica
Year: 2014
Subjects: subject: Musculoskeletal spine
subject: Musculoskeletal system
subject: MR
subject: Imaging sequences
subject: Oedema
subject: Inflammation

description: Objetivo docente
Revisión del tema
Conclusiones
Bibliografía
description: Objetivo docente:
1.
Recordar el concepto de espondiloartritis: Introducción a las espondiloartritis. Diagnótico de las espondiloartritis. RM como predictor de evolución. 2.
Conocer las Técnicas de Imagen: Ventajas e inconvenientes de las distintas técnicas de...
Bioanalytical applications of multicolour bioluminescence imaging: new tools for drug discovery and development
Creators: name: Mezzanotte, Laura <1982>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: CHIM/01 Chimica analitica

description: The subject of this thesis is multicolour bioluminescence analysis and how it can provide new tools for drug discovery and development.The mechanism of color tuning in bioluminescent reactions is not fully understood yet but it is object of intense research and several hypothesis have been generated. In the past decade key residues of the active site of the enzyme or in the surface surrounding the active site have been identified as responsible of different color emission. Anyway since bioluminescence reaction is strictly dependent from the interaction between the enzyme and its substrate D-luciferin, modification of the substrate can lead to a different emission spectrum too. In the recent years firefly luciferase and other luciferases underwent mutagenesis in order to obtain mutants with different emission characteristics. Thanks to these new discoveries in the bioluminescence field multicolour luciferases can be nowadays employed in bioanalysis for assay developments and imaging purposes. The use of multicolor bioluminescent enzymes expanded the potential of a range of application in vitro and in vivo. Multiple analysis and more information can be obtained from the same analytical session saving cost and time. This thesis focuses on several application of multicolour bioluminescence for high-throughput screening and in vivo imaging. Multicolor luciferases can be employed as new tools for drug discovery and developments and some examples are provided in the different chapters. New red codon optimized luciferase have been demonstrated to be improved tools for bioluminescence imaging in small animal and the possibility to combine red and green luciferases for BLI has been achieved even if some aspects of the methodology remain challenging and need further improvement. In vivo Bioluminescence imaging has known a rapid progress since its first application no more than 15 years ago. It is becoming an indispensable tool in pharmacological research. At the same time the development of more sensitive and implemented microscopes and low-light imager for a better visualization and quantification of multicolor signals would boost the research and the discoveries in life sciences in general and in drug discovery and development in particular.
Propositional knowledge in Plato
Creators: name: Anglin, William Sherron Raymond
Publisher: name: University of British Columbia
Year: 2010

description: Contemporary philosophers distinguish a certain "propositional knowledge (KP)" from other sorts of knowledge such as "knowledge by acquaintance (KA)". However, when Plato began to do philosophy no one had formulated the concept of KP, indeed, no one had formulated the notion of what we call a "proposition". On the contrary, the ancient Greeks unreflectedly presupposed that all knowledge was simply some sort of acquaintance with the object of knowledge. This presupposition of theirs naturally caused a great deal of confusion in their epistemology and at the beginning of his career, Plato himself was victim and perpetrator of this confusion. However, as the following thesis shows, Plato began to make explicit and to question the presupposition that all knowledge was KA and he did make progress towards finding the crucially missing category, KP. It was not that he succeeded totally in isolating the notion of KP. For that matter, he never attained to a notion of "proposition" in all its modern generality. However, he did come to hold that sometimes knowledge involves not only acquaintance with the object of knowledge but also a knowledge of interrelations among things known. Having at first tried to understand all knowledge in terms of a model that construed it as nothing more complex than some sort of acquaintance with the object of knowledge, Plato subsequently abandoned this model and proceeded to develop an epistemology capable of accomodating cases of what we would call KP. I shall argue that Plato did this after he had written the Charmides and before he wrote the Theaetetus.
Comment on 'Alfven Instability in a Compressible Flow' [Phys. Rev. Lett. 101, 245001 (2008)]
Creators: name: Vranjes, J.
name: Poedts, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: In a recent paper [Y. Taroyan, Phys. Rev. Lett 101, 245001 (2008) it is claimed that a new MHD instability of the Alfven wave has been found: incompressible Alfven modes propagating in a compressible spatially varying flow were apparently exponentially amplified. We show that the results of the work follow from an impossible equilibrium and therefore should be disregarded.
Trajectory-based simulation of far-infrared CIA profiles of CH$_4-$N$_2$ for modeling Titan's atmosphere
Creators: name: Finenko, Artem
name: Bézard, Bruno
name: Gordon, Iouli
name: Chistikov, Daniil
name: Lokshtanov, Sergei
name: Petrov, Sergey
name: Vigasin, Andrey
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We report the results of the trajectory-based simulation of far-infrared collision-induced absorption (CIA) due to CH$_4-$N$_2$ pairs at temperatures between 70 and 400 K. Our analysis utilizes recently calculated high-level potential energy (PES) and induced dipole surfaces (IDS) [Finenko, A. A., Chistikov, D. N., Kalugina, Y. N., Conway E. K., Gordon, I. E., Phys. Chem. Chem. Phys., 2021, doi: 10.1039/d1cp02161c]. Treating collision partners as rigid rotors, the time evolution of interaction-induced dipole is accumulated over a vast ensemble of classical trajectories and subsequently transformed into CIA spectrum via Fourier transform. In our calculations, both bound and unbound states are properly accounted for, and the rigorous theory of lower-order spectral moments is addressed to check the accuracy of simulated profiles. Classically derived trajectory-based profiles are subject to two approximate desymmetrization procedures so that resulting profiles conform to the quantum principle of detailed balance. The simulated profiles are compared to laboratory measurements and employed for modeling Titan's spectra in the 50-500 cm$^{-1}$ range. Based on the desymmetrized simulated profiles, a new semi-empirical model for CH$_4-$N$_2$ CIA is proposed for modeling Titan's infrared spectra. Synthetic spectra derived using this model yield an excellent agreement with the data recorded by the Composite Infrared Spectrometer (CIRS) aboard the Cassini spacecraft at low and high emission angles.
description: 18 pages, 11 figures, accepted for publication in ApJS . The semiempirical CH4-N2 profiles tabulated in the HITRAN CIA format are available on the ApJS website or upon reasonable request
Complex higher spins, Weyl invariance and tractors
Creators: name: Bonezzi, Roberto <1983>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: FIS/02 Fisica teorica, modelli e metodi matematici

description: In this thesis work I analyze higher spin field theories from a first quantized perspective, finding in particular new equations describing complex higher spin fields on Kaehler manifolds. They are studied by means of worldline path integrals and canonical quantization, in the framework of supersymmetric spinning particle theories, in order to investigate their quantum properties both in flat and curved backgrounds. For instance, by quantizing a spinning particle with one complex extended supersymmetry, I describe quantum massless (p,0)-forms and find a worldline representation for their effective action on a Kaehler background, as well as exact duality relations. Interesting results are found also in the definition of the functional integral for the so called O(N) spinning particles, that will allow to study real higher spins on curved spaces.
In the second part, I study Weyl invariant field theories by using a particular mathematical framework known as tractor calculus, that enable to maintain at each step manifest Weyl covariance.
Standard deviation of the longest common subsequence
Creators: name: Lember, Jüri
name: Matzinger, Heinrich
Publisher: name: arXiv
Year: 2009
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K35, 41A25 (Primary), 60C05C (Secondary)

description: Let $L_n$ be the length of the longest common subsequence of two independent i.i.d. sequences of Bernoulli variables of length $n$. We prove that the order of the standard deviation of $L_n$ is $\sqrt{n}$, provided the parameter of the Bernoulli variables is small enough. This validates Waterman's conjecture in this situation [Philos. Trans. R. Soc. Lond. Ser. B 344 (1994) 383--390]. The order conjectured by Chvatal and Sankoff [J. Appl. Probab. 12 (1975) 306--315], however, is different.
description: Published in at http://dx.doi.org/10.1214/08-AOP436 the Annals of Probability (http://www.imstat.org/aop/) by the Institute of Mathematical Statistics (http://www.imstat.org)
ML-PersRef: A Machine Learning-based Personalized Multimodal Fusion Approach for Referencing Outside Objects From a Moving Vehicle
Creators: name: Gomaa, Amr
name: Reyes, Guillermo
name: Feld, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: H.5.2; H.1.2

description: Over the past decades, the addition of hundreds of sensors to modern vehicles has led to an exponential increase in their capabilities. This allows for novel approaches to interaction with the vehicle that go beyond traditional touch-based and voice command approaches, such as emotion recognition, head rotation, eye gaze, and pointing gestures. Although gaze and pointing gestures have been used before for referencing objects inside and outside vehicles, the multimodal interaction and fusion of these gestures have so far not been extensively studied. We propose a novel learning-based multimodal fusion approach for referencing outside-the-vehicle objects while maintaining a long driving route in a simulated environment. The proposed multimodal approaches outperform single-modality approaches in multiple aspects and conditions. Moreover, we also demonstrate possible ways to exploit behavioral differences between users when completing the referencing task to realize an adaptable personalized system for each driver. We propose a personalization technique based on the transfer-of-learning concept for exceedingly small data sizes to enhance prediction and adapt to individualistic referencing behavior. Our code is publicly available at https://github.com/amr-gomaa/ML-PersRef.
Depicting the role of CDKN2A/ARF alterations in adult BCR-ABL1-positive acute lymphoblastic leukemia patients: from genomic deletions to prognostic impact
Creators: name: Ferrari, Anna <1979>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2011
Subjects: MED/15 Malattie del sangue

description: This 9p21 locus, encode for important proteins involved in cell cycle regulation and apoptosis containing the p16/CDKN2A (cyclin-dependent kinase inhibitor 2a) tumor suppressor gene and two other related genes, p14/ARF and p15/CDKN2B. This locus, is a major target of inactivation in the pathogenesis of a number of human tumors, both solid and haematologic, and is a frequent site of loss or deletion also in acute lymphoblastic leukemia (ALL) ranging from 18% to 45% 1.
In order to explore, at high resolution, the frequency and size of alterations affecting this locus in adult BCR-ABL1-positive ALL and to investigate their prognostic value, 112 patients (101 de novo and 11 relapse cases) were analyzed by genome-wide single nucleotide polymorphisms arrays and gene candidate deep exon sequencing. Paired diagnosis-relapse samples were further available and analyzed for 19 (19%) cases. 
CDKN2A/ARF and CDKN2B genomic alterations were identified in 29% and 25% of newly diagnosed patients, respectively. Deletions were monoallelic in 72% of cases and in 43% the minimal overlapping region of the lost area spanned only the CDKN2A/2B gene locus. The analysis at the time of relapse showed an almost significant increase in the detection rate of CDKN2A/ARF loss (47%) compared to diagnosis (p = 0.06). Point mutations within the 9p21 locus were found at very low level with only a non-synonymous substition in the exon 2 of CDKN2A. Finally, correlation with clinical outcome showed that deletions of CDKN2A/B are significantly associated with poor outcome in terms of overall survival (p = 0.0206), disease free-survival (p = 0.0010) and cumulative incidence of relapse (p = 0.0014). 
The inactivation of 9p21 locus by genomic deletions is a frequent event in BCR-ABL1-positive ALL. Deletions are frequently acquired at the leukemia progression and work as a poor prognostic marker.