cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Origin and Dynamical Evolution of Neptune Trojans - II: Long Term Evolution
Creators: name: Lykawka, Patryk Sofia
name: Horner, Jonathan
name: Jones, Barrie W.
name: Mukai, Tadashi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present results examining the fate of the Trojan clouds produced in our previous work. We find that the stability of Neptunian Trojans seems to be strongly correlated to their initial post-migration orbital elements, with those objects that survive as Trojans for billions of years displaying negligible orbital evolution. The great majority of these survivors began the integrations with small eccentricities (e < 0.2) and small libration amplitudes (A < 30 - 40°). The survival rate of "pre-formed" Neptunian Trojans (which in general survived on dynamically cold orbits (e < 0.1, i < 5 - 10°)) varied between ~5 and 70%. By contrast, the survival rate of "captured" Trojans (on final orbits spread across a larger region of e-i element space) were markedly lower, ranging between 1 and 10% after 4 Gyr. Taken in concert with our earlier work, we note that planetary formation scenarios which involve the slow migration (a few tens of millions of years) of Neptune from an initial planetary architecture that is both resonant and compact (aN < 18 AU) provide the most promising fit of those we considered to the observed Trojan population. In such scenarios, we find that the current day Trojan population would number ~1% of that which was present at the end of the planet's migration, with the bulk being sourced from captured, rather than pre-formed objects. We note, however, that even those scenarios still fail to reproduce the currently observed portion of the Neptune Trojan population moving on orbits with e < 0.1 but i > 20°. Dynamical integrations of the currently observed Trojans show that five out of the seven are dynamically stable on 4 Gyr timescales, while 2001 QR322, exhibits significant dynamical instability. The seventh Trojan object, 2008 LC18, has such large orbital uncertainties that only future studies will be able to determine its stability.
description: 24 pages, 6 figures, accepted for publication in MNRAS (The abstract was shortened. Original version can be found in the pdf file)
Simultaneous Covariance Inference for Multimodal Integrative Analysis
Creators: name: Xia, Yin
name: Li, Lexin
name: Lockhart, Samuel N.
name: Jagust, William J.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: Multimodal integrative analysis fuses different types of data collected on the same set of experimental subjects. It is becoming a norm in many branches of scientific research, such as multi-omics and multimodal neuroimaging analysis. In this article, we address the problem of simultaneous covariance inference of associations between multiple modalities, which is of a vital interest in multimodal integrative analysis. Recognizing that there are few readily available solutions in the literature for this type of problem, we develop a new simultaneous testing procedure. It provides an explicit quantification of statistical significance, a much improved detection power, as well as a rigid false discovery control. Our proposal makes novel and useful contributions from both the scientific perspective and the statistical methodological perspective. We demonstrate the efficacy of the new method through both simulations and a multimodal positron emission tomography study of associations between two hallmark pathological proteins of Alzheimer’s disease.
The Fine-Scale Structure of the neutral Interstellar Medium in nearby Galaxies
Creators: name: Bagetakos, I.
name: Brinks, E.
name: Walter, F.
name: de Blok, W. J. G.
name: Usero, A.
name: Leroy, A. K.
name: Rich, J. W.
name: Kennicutt, R. C.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present an analysis of the properties of HI holes detected in 20 galaxies that are part of "The HI Nearby Galaxy Survey" (THINGS). We detected more than 1000 holes in total in the sampled galaxies. Where they can be measured, their sizes range from about 100 pc (our resolution limit) to about 2 kpc, their expansion velocities range from 4 to 36 km/s, and their ages are estimated to range between 3 and 150 Myr. The holes are found throughout the disks of the galaxies, out to the edge of the HI; 23% of the holes fall outside R25. We find that shear limits the age of holes in spirals (shear is less important in dwarf galaxies) which explains why HI holes in dwarfs are rounder, on average than in spirals. Shear, which is particularly strong in the inner part of spiral galaxies, also explains why we find that holes outside R25 are larger and older. We derive the scale height of the HI disk as a function of galactocentric radius and find that the disk flares up in all galaxies. We proceed to derive the surface and volume porosity (Q2D and Q3D) and find that this correlates with the type of the host galaxy: later Hubble types tend to be more porous. The size distribution of the holes in our sample follows a power law with a slope of a ~ -2.9. Assuming that the holes are the result of massive star formation, we derive values for the supernova rate (SNR) and star formation rate (SFR) which scales with the SFR derived based on other tracers. If we extrapolate the observed number of holes to include those that fall below our resolution limit, down to holes created by a single supernova, we find that our results are compatible with the hypothesis that HI holes result from star formation.
description: 142 pages, 55 figures, accepted for publication in the Astronomical Journal
تقييم تجربة التعليم الهجين فى ظل جائحة كورونا (Covid – 19) من وجهة نظر أعضاء هيئة التدريس بجامعة أسيوط
Creators: name: Hamd, Mohamed
name: Khalil, Omar
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 390303
subject: Higher education

description: تقييم تجربة التعليم الهجين فى ظل جائحة كورونا (Covid – 19) من وجهة نظر أعضاء هيئة التدريس بجامعة أسيوط
Principal Boundary on Riemannian Manifolds
Creators: name: Yao, Zhigang
name: Zhang, Zhenyue
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: We consider the classification problem and focus on nonlinear methods for classification on manifolds. For multivariate datasets lying on an embedded nonlinear Riemannian manifold within the higher-dimensional ambient space, we aim to acquire a classification boundary for the classes with labels, using the intrinsic metric on the manifolds. Motivated by finding an optimal boundary between the two classes, we invent a novel approach – the principal boundary. From the perspective of classification, the principal boundary is defined as an optimal curve that moves in between the principal flows traced out from two classes of data, and at any point on the boundary, it maximizes the margin between the two classes. We estimate the boundary in quality with its direction, supervised by the two principal flows. We show that the principal boundary yields the usual decision boundary found by the support vector machine in the sense that locally, the two boundaries coincide. Some optimality and convergence properties of the random principal boundary and its population counterpart are also shown. We illustrate how to find, use and interpret the principal boundary with an application in real data.
Simultaneous Covariance Inference for Multimodal Integrative Analysis
Creators: name: Xia, Yin
name: Li, Lexin
name: N. Lockhart, Samuel
name: J. Jagust, William
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: Science Policy

description: Multimodal integrative analysis fuses different types of data collected on the same set of experimental subjects. It is becoming a norm in many branches of scientific research, such as multi-omics and multimodal neuroimaging analysis. In this article, we address the problem of simultaneous covariance inference of associations between multiple modalities, which is of a vital interest in multimodal integrative analysis. Recognizing that there are few readily available solutions in the literature for this type of problem, we develop a new simultaneous testing procedure. It provides an explicit quantification of statistical significance, a much improved detection power, as well as a rigid false discovery control. Our proposal makes novel and useful contributions from both the scientific perspective and the statistical methodological perspective. We demonstrate the efficacy of the new method through both simulations and a multimodal positron emission tomography study of associations between two hallmark pathological proteins of Alzheimer’s disease.
Schema Redescription in Cellular Automata: Revisiting Emergence in Complex Systems
Creators: name: Marques-Pita, Manuel
name: Rocha, Luis M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: Artificial Intelligence (cs.AI)
subject: Formal Languages and Automata Theory (cs.FL)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: We present a method to eliminate redundancy in the transition tables of Boolean automata: schema redescription with two symbols. One symbol is used to capture redundancy of individual input variables, and another to capture permutability in sets of input variables: fully characterizing the canalization present in Boolean functions. Two-symbol schemata explain aspects of the behaviour of automata networks that the characterization of their emergent patterns does not capture. We use our method to compare two well-known cellular automata for the density classification task: the human engineered CA GKL, and another obtained via genetic programming (GP). We show that despite having very different collective behaviour, these rules are very similar. Indeed, GKL is a special case of GP. Therefore, we demonstrate that it is more feasible to compare cellular automata via schema redescriptions of their rules, than by looking at their emergent behaviour, leading us to question the tendency in complexity research to pay much more attention to emergent patterns than to local interactions.
description: paper submitted to the 2011 IEEE Symposium on Artificial Life
A white dwarf cooling age of 8 Gyr for NGC 6791 from physical separation processes
Creators: name: García-Berro, Enrique
name: Torres, Santiago
name: Althaus, Leandro G.
name: Renedo, Isabel
name: Lorén-Aguilar, Pablo
name: Córsico, Alejandro H.
name: Rohrmann, René D.
name: Salaris, Maurizio
name: Isern, Jordi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: NGC 6791 is a well studied open cluster1 that it is so close to us that can be imaged down to very faint luminosities. The main sequence turn-off age (~8 Gyr) and the age derived from the termination of the white dwarf cooling sequence (~6 Gyr) are significantly different. One possible explanation is that as white dwarfs cool, one of the ashes of helium burning, 22Ne, sinks in the deep interior of these stars. At lower temperatures, white dwarfs are expected to crystallise and phase separation of the main constituents of the core of a typical white dwarf, 12C and 16O, is expected to occur. This sequence of events is expected to introduce significant delays in the cooling times, but has not hitherto been proven. Here we report that, as theoretically anticipated, physical separation processes occur in the cores of white dwarfs, solving the age discrepancy for NGC 6791.
description: 3 pages, 2 figures, published in Nature
Feature Selection by Canonical Correlation Search in High-Dimensional Multiresponse Models With Complex Group Structures
Creators: name: Luo, Shan
name: Chen, Zehua
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: High-dimensional multiresponse models with complex group structures in both the response variables and the covariates arise from current researches in important fields such as genetics and medicine. However, no enough research has been done on such models. One of a few researches, if not the only one, is the article by Li, Nan, and Zhu where the sparse group Lasso approach is extended to such models. In this article, we propose a novel approach named the sequential canonical correlation search (SCCS) procedure. In the SCCS procedure, the nonzero group by group blocks of regression coefficients are searched stepwise using a canonical correlation measure. Each step of the procedure consists of a block selection and a sparsity identification. The model selection criterion, EBIC, is used as the stopping rule of the procedure. We establish the selection consistency of the SCCS procedure and conduct simulation studies for the comparison of existing methods. The SCCS procedure has two advantages over the sparse grouped Lasso method: (i) it is more accurate in the identification of nonzero coefficient blocks and their nonzero entries, and (ii) its implementation is not limited by the dimensionality of the models and requires much less computation. A real example in genetic studies is also considered. Supplementary materials for this article are available online.
Ioannis Hus, et Hieronymi Pragensis confessorum Christi Historia et monumenta : partim annis superioribus publicata, partim nunc demum in lucem prolata & edita, cum scriptis & testimoniis multorum nobilitate, eruditione, atq[ue] pietate præstantium, qui sanctorum martyrum doctrina præclare instituti, tandem tractationum omnium in Synodo Constantiensi conscii, & crudelium ac indignisimorum suppliciorum spectatores fuerunt
Creators: name: Hus, Jan, 1369?-1415
Publisher: name: Noribergæ : Impressa in Officina Ioannis Montani, & Vlrici Neuberi
Year: 2017

description: Bound in stamped pigskin over boards, with clasps.

 Title in red and black ; woodcut initials.

 Printers' device: verso of leaf 471.

 Text printed on both sides of leaves.

 Full page woodcut of Hus burning at the stake.
Parton distribution functions and nuclear EMC effect in a statistical model
Creators: name: Shao, Lijing
name: Zhang, Yunhua
name: Ma, Bo-Qiang
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A new and simple statistical approach is performed to calculate the parton distribution functions (PDFs) of the nucleon in terms of light-front kinematic variables. Analytic expressions of x-dependent PDFs are obtained in the whole x region. And thereafter, we treat the temperature T as a parameter of the atomic number A to explain the nuclear EMC effect in the region $x \in [0.2, 0.7]$. We give the predictions of PDF ratios, and they are very different from those by other models, thus experiments aiming at measuring PDF ratios are suggested to provide a discrimination of different models.
description: 4 pages, no figure; talk given at the 5th International Conference On Quarks and Nuclear Physics (QNP09), Sep 2009, Beijing China
Combining inter and intra-line cache compression
Creators: name: Ewais, Mohammad
Publisher: name: University of British Columbia
Year: 2018

description: Caches are essential to today's microprocessors. They close the huge speed gap between processors and memories. However, cache design presents an important tradeoff. A bigger cache size should increase performance and allow processors to perform faster, but it is also limited by its silicon, area, and power consumption costs. Today's caches often use half of the silicon area in processor chips and consume a lot of power. Instead of physically increasing the cache size, effective cache capacity can be substantially increased if the data inside the cache is compressed. Current cache compression techniques focus only on one granularity, either compressing inside one cache line, or compressing similar cache lines together. In this work, we combine both compression techniques to leverage both inter-line and intra-line compression. We find that combining both techniques results in better compression than previously described methods, and also maintains the same performance as a normal uncompressed cache when running incompressible applications. We study and address the design considerations and tradeoffs that arise from such design. We address issues related to the design like cache structure and replacement policies. Then we present an implementation that achieves the best possible compression and performance while maintaining overheads as low as possible.
Probabilistic Generation of Quantum Contextual Sets
Creators: name: Megill, Norman D.
name: Fresl, Kresimir
name: Waegell, Mordecai
name: Aravind, P. K.
name: Pavicic, Mladen
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give a method for exhaustive generation of a huge number of Kochen-Specker contextual sets, based on the 600-cell, for possible experiments and quantum gates. The method is complementary to our previous parity proof generation of these sets, and it gives all sets while the parity proof method gives only sets with an odd number of edges in their hypergraph representation. Thus we obtain 35 new kinds of critical KS sets with an even number of edges. Using a random sample of the sets generated with our method, we give a statistical estimate of the number of sets that might be obtained in an eventual exhaustive enumeration.
description: 22 pages, 7 figures
Freedom, Truth, Democracy : a brief ethical consideration about censorship
Creators: name: Liébart, Déborah
Publisher: name: Zenodo
Year: 2019
Subjects: freedom, censorship, truth, democracy, ethics

description: Facing external and internal threats, Western societies have been operating for a few years already a protectionist security shift: camera surveillance, geolocation of individuals, tracking on social networks... By adopting the text of 13 March 2019, concerning the "European Parliament recommendation of 13 March 2019 to the Council and the Vice-President of the Commission / High Representative of the Union for Foreign Affairs and Security Policy concerning taking stock of the follow-up taken by the EEAS two years after the EP report on EU strategic communication to counteract propaganda against it by third parties", the European Union poses again with force the question of the censorship and the political and social control in democracy, the degree, the threshold of acceptability of the limitation of the Freedom in our Western and democratic societies, in a context of development of the technological means allowing establish a real traceability of the individuals.
Study of f_0(980) and f_0(1500) from B_s \to f_0(980)π, f_0(1500)πDecays
Creators: name: Zhang, Zhi-Qing
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper, we analyze the scalar mesons $f_0(980)$ and $f_0(1500)$ from the decays $\bar B^0_s \to f_0(980)π^0, f_0(1500)π^0$ within Perturbative QCD approach. From the leading order calculations, we find that (a) in the allowed mixing angle ranges, the branching ratio of $\bar B^0_s\to f_0(980)π^0$ is about $(1.0\sim1.6)\times 10^{-7}$, which is smaller than that of $\bar B^0_s\to f_0(980)K^0$ (the difference is a few times even one order); (b) the decay $\bar B^0_s \to f_0(1500)π^0$ is better to distinguish between the lowest lying state or the first excited state for $f_0(1500)$, because the branching ratios for two scenarios have about one-order difference in most of the mixing angle ranges; and (c) the direct CP asymmetries of $\bar B^0_s \to f_0(1500)π^0$ for two scenarios also exists great difference. In scenario II, the variation range of the value ${\cal A} ^{dir}_{CP}(\bar B^0_s \to f_0(1500)π^0)$ according to the mixing angle is very small, except for the values corresponding to the mixing angles being near $90^\circ$ or $270^\circ$, while the variation range of ${\cal A} ^{dir}_{CP}(\bar B^0_s \to f_0(1500)π^0)$ in scenario I is very large. Compared with the future data for the decay $\bar B^0_s \to f_0(1500)π^0$, it is ease to determine the nature of the scalar meson $f_0(1500)$.
description: 16 pages, 3 figures, Revtex
Experimental 4-step braided glass fiber reinforced composite for dental CAD/CAM applications
Creators: name: Lesniak, Robert Matthew
Publisher: name: University of British Columbia
Year: 2018

description: Introduction: Computer-aided design/computer-aided manufacturing in dentistry has lead to rapid expansion of new dental materials. A new product from Shofu (Shofu, Japan), TRINIA CAD/CAM blocks and pucks, offers an alternative to the existing resin composite CAD/CAM materials. The claimed mechanical properties of TRINA provide merit to further research and development of 3D fiber reinforced composites for CAD/CAM dentistry. Objective: To design and produce 3D braided fiber-reinforced composites for dental CAD/CAM applications. Materials and Methods: Experimental groups were designed and produced in conjunction with the Department of Materials Engineering, UBC. The proposed design parameters included: 50:50 volume fraction fibers, 45-degree braiding angle, and 14 mm*14 mm cross sectional area, the approximate size of currently available CAD/CAM blocks. Continuous S-2 glass fiber roving was used as the reinforcing agent. Three experimental 3D glass fiber preforms were produced with internal structural variations using a 4-step braiding technique. A 50:50 UDMA:TEGDMA resin matrix blend with a thermal curing agent was used for infiltration via submersion under vacuum, followed by thermal curing. An unreinforced resin blend and a unidirectional fiber-reinforced composite, with the same volume fraction and dimensions, served as control groups. Samples were prepared to 4 mm*4 mm*45 mm beams for three-point-bend testing. An Instron 5969 Dual Column Material Testing System was used to test the flexural properties of the samples. Scanning electron microscopy (SEM) was used to evaluate the fractured samples. Results: Results showed that incorporation of anisotropic unidirectional fibers had the most significant effect in reinforcing the resin blend. The unidirectional control group produced the greatest flexural strength and elastic modulus at 336.6 MPa and 37.3 GPa, respectively. The 2-ply+axial group followed at 236.52 MPa and 20.75 GPa. The 2-ply had values of 196.2 MPa and 11.83 GPa. The 4-ply had values of 96.48 MPa and 4.906 GPa. The 4-ply group failed to reinforce a resin control group, which had values of 102.65 MPa and 2.467 GPa. Conclusion: Incorporation of anisotropic reinforcing fibers has most significant influence on the experimental materials flexural properties.
32049: Typical Day in Lockdown
Creators: name: Project, Lockdown2020 and Beyond
Publisher: name: University of Oxford
Year: 2023
Subjects: classificationCode: 479999
subject: Other language, communication and culture not elsewhere classified

description: I wake up a lot later than I would if I'd been at college. Then I'd message friends and scroll through social media and the news for a bit. I would then start the reading for my essay which is sometimes quite tricky since I have been unable to access some of the books on the reading lists. Once I start working, I'd probably do one article and then take a break. Breaks usually consist of watching Netflix on my laptop now (currently watching Stranger Things) because my desktop packed up and I can't play games anymore. Tutorials from home are fine but sometimes the video lags and I have to ask the tutor to repeat what they said. I would then do another article and then have lunch with my dad and brother, who are both working from home as well. When lockdown started there were a few squabbles over where we would each work but everything has been resolved now. After lunch I like to do baking and have taken this hobby up whilst at home and have been experimenting with banana bread and lemon cake. Whilst the cake is in the oven I normally go on my laptop again and start researching work experience opportunities and looking at things to build my CV. My work experience at a law firm was postponed and another vacation scheme I had applied to was cancelled. I'm grateful for all the virtual insight events put on by the Careers Service however this part of lockdown has affected me the most. It is depressing that everything has been cancelled and I'm now quite anxious that I don't have enough on my CV. I have also been working on some creative writing since lockdown started since there is nothing much else to do, really. I've tried to keep myself motivated but this term but it has been very hard. I had been really looking forward to Trinity because I wanted to get more involved in Oxford life, maybe audition for a play, join a new society or make some new friends. That obviously hasn't happened and now that I'm going into my final year I can't help but feel conscious of everything I wanted to do at university but haven't been able to. In the evening I normally eat dinner with my brother and then my family and I might watch a movie. At the end of every day I'll call my boyfriend and we'll chat for an hour or so before I go to bed.
Field emission properties of as-grown multiwalled carbon nanotube films
Creators: name: Giubileo, F.
name: Di Bartolomeo, A.
name: Sarno, M.
name: Altavilla, C.
name: Santandrea, S.
name: Ciambelli, P.
name: Cucolo, A. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Multiwalled carbon nanotubes have been produced by ethylene catalytic chemical vapor deposition and used to fabricate thick and dense freestanding films ("buckypapers") by membrane filtering. Field emission properties of buckypapers have been locally studied by means of high vacuum atomic force microscopy with a standard metallic cantilever used as anode to collect electrons emitted from the sample. Buckypapers showed an interesting linear dependence in the Fowler-Nordheim plots demonstrating their suitability as emitters. By precisely tuning the tip-sample distance in the submicron region we found out that the field enhancement factor is not affected by distance variations up to 2um. Finally, the study of current stability showed that the field emission current with intensity of about 3,3*10-5A remains remarkably stable (within 5% fluctuations) for several hours.
description: 18 pages, 5 figures
Likelihood that a pseudorandom sequence generator has optimal properties
Creators: name: Fúster-Sabater, Amparo
name: García-Villalba, L. J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cryptography and Security (cs.CR)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: E.3; F.1.1
subject: 94A60, 11T71, 14G50

description: The authors prove that the probability of choosing a nonlinear filter of m-sequences with optimal properties, that is, maximum period and maximum linear complexity, tends assymptotically to 1 as the linear feedback shift register length increases.
description: 3 pages, 0 figures
Enhancing QOS and QOE in IMS enabled next generation networks
Creators: name: Lakhtaria, Kamaljit I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Managing network complexity, accommodating greater numbers of subscribers, improving coverage to support data services (e.g. email, video, and music downloads), keeping up to speed with fast-changing technology, and driving maximum value from existing networks - all while reducing CapEX and OpEX and ensuring Quality of Service (QoS) for the network and Quality of Experience (QoE) for the user. These are just some of the pressing business issues faced by mobileservice providers, summarized by the demand to "achieve more, for less." The ultimate goal of optimization techniques at the network and application layer is to ensure End-user perceived QoS. The next generation networks (NGN), a composite environment of proven telecommunications and Internet-oriented mechanisms have become generally recognized as the telecommunications environment of the future. However, the nature of the NGN environment presents several complex issues regarding quality assurance that have not existed in the legacy environments (e.g., multi-network, multi-vendor, and multi-operator IP-based telecommunications environment, distributed intelligence, third-party provisioning, fixed-wireless and mobile access, etc.). In this Research Paper, a service aware policy-based approach to NGN quality assurance is presented, taking into account both perceptual quality of experience and technologydependant quality of service issues. The respective procedures, entities, mechanisms, and profiles are discussed. The purpose of the presented approach is in research, development, and discussion of pursuing the end-to-end controllability of the quality of the multimedia NGN-based communications in an environment that is best effort in its nature and promotes end user's access agnosticism, service agility, and global mobility.
Earth's surface fluid variations and deformations from GPS and GRACE in global warming
Creators: name: Jin, Shuanggen
name: Zhang, Liangjing
name: Feng, Guiping
Publisher: name: arXiv
Year: 2011
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: Global warming is affecting our Earth's environment. For example, sea level is rising with thermal expansion of water and fresh water input from the melting of continental ice sheets due to human-induced global warming. However, observing and modeling Earth's surface change has larger uncertainties in the changing rate and the scale and distribution of impacts due to the lack of direct measurements. Nowadays, the Earth observation from space provides a unique opportunity to monitor surface mass transfer and deformations related to climate change, particularly the global positioning system (GPS) and the Gravity Recovery and Climate Experiment (GRACE) with capability of estimating global land and ocean water mass. In this paper, the Earth's surface fluid variations and deformations are derived and analyzed from global GPS and GRACE measurements. The fluids loading deformation and its interaction with Earth system, e.g., Earth Rotation, are further presented and discussed.
description: Proceeding of Geoinformatics, IEEE Geoscience and Remote Sensing Society (GRSS), June 24-26, 2011, Shanghai, China
Static black holes in equilibrium with matter: nonlinear equation of state
Creators: name: Zaslavskii, Oleg B.
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider a spherically symmetric black hole in equilibrium with surrounding classical matter that is characterized by a nonlinear dependence of the radial pressure p_{r} on the density ρ. We examine under which requirements such an equilibrium is possible. It is shown that if the radial and transverse pressures are equal (Pascal perfect fluid), equation of state should be approximately linear near the horizon. The corresponding restriction on ((dp_{r})/(dρ)) is a direct generalization of the result, previously found for an exactly linear equation of state. In the anisotropic case there is no restriction on equation of state but the horizon should be simple (nondegenerate).
description: 6 pages. To appear in PRD.
Quantum dots as handles for optical manipulation
Creators: name: Jauffred, Liselotte
name: Sletmoen, Marit
name: Czerwinski, Fabian
name: Oddershede, Lene
Publisher: name: arXiv
Year: 2010
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Individual colloidal quantum dots can be optically trapped and manipulated by a single infrared laser beam operated at low laser powers. If the absorption spectrum and the emission wavelength of the trapping laser are appropriately chosen, the trapping laser light can act as a source for two-photon excitation of the trapped quantum dot. This eliminates the need for an additional excitation laser in experiments where individual quantum dots are used both as force transducers and for visualization of the system. To use quantum dots as handles for quantitative optical force transduction, it is crucial to perform a precise force calibration. Here, we present an Allan variance analysis of individual optically trapped quantum dots and show that the optimal measurement time for experiments involving individual quantum dots is on the order of 0.3 seconds. Due to their small size and strong illumination, quantum dots are optimal for single molecule assays where, optimally, the presence of the tracer particle should not dominate the dynamics of the system. As an example, we investigated the thermal fluctuations of a DNA tether using an individual colloidal quantum dot as marker, this being the smallest tracer for tethered particle method reported.
GPS Ionospheric mapping and tomography: A case of study in a geomagnetic storm
Creators: name: Jin, Shuanggen
name: Jin, Rui
Publisher: name: arXiv
Year: 2011
Subjects: subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The ionosphere has been normally detected by traditional instruments, such as ionosonde, scatter radars, topside sounders onboard satellites and in situ rocket. However, most instruments are expensive and also restricted to either the bottomside ionosphere or the lower part of the topside ionosphere (usually lower than 800 km), such as ground based radar measurements. Nowadays, GPS satellites in high altitude orbits (~20,200 km) are capable of providing details on the structure of the entire ionosphere, even the plasmasphere. In this paper, a Regional Ionospheric Mapping and Tomography (RIMT) tool was developed, which can be used to retrieve 2-D TEC and 3-D ionospheric electron density profiles using ground-based or space-borne GPS measurements. Some results are presented from the RIMT tool using regional GPS networks in South Korea and validated using the independent ionosonde. GPS can provide time-varying ionospheric profiles and information at any specified grid related to ionospheric activities and states, including the electron density response at the F2-layer peak (the NmF2) during geomagnetic storms.
description: Proceeding of IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 24-29 July, 2011, Vancouver, Canada
Optimal $\mathfrak{L}^β$-Control for the Global Cauchy Problem of the Relativistic Vlasov-Poisson System
Creators: name: Young, Brent
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: Recently, M.K.-H. Kiessling and A.S. Tahvildar-Zadeh proved that a unique global classical solution to the relativistic Vlasov-Poisson system exists whenever the positive, integrable initial datum is spherically symmetric, compactly supported in momentum space, vanishes on characteristics with vanishing angular momentum, and for $β\ge 3/2$ has $\mathfrak{L}^β$-norm strictly below a positive, critical value $\mathcal{C}_β$. Everything else being equal, data leading to finite time blow-up can be found with $\mathfrak{L}^β$-norm surpassing $\mathcal{C}_β$ for any $β>1$, with $\mathcal{C}_β>0$ if and only if $β\geq 3/2$. In their paper, the critical value for $β= {3}/{2}$ is calculated explicitly while the value for all other $β$ is merely characterized as the infimum of a functional over an appropriate function space. In this work, the existence of minimizers is established, and the exact expression of $\mathcal{C}_β$ is calculated in terms of the famous Lane-Emden functions. Numerical computations of the $\mathcal{C}_β$ are presented along with some elementary asymptotics near the critical exponent ${3}/{2}$.
description: 24 pages, 2 figures Refereed and accepted for publication in Transport Theory and Statistical Physics
A comparative study of small x Monte Carlos with and without QCD coherence effects
Creators: name: Chachamis, G.
name: Deak, M.
name: Vera, A. Sabio
name: Stephens, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We compare two Monte Carlo implementations of resummation schemes for the description of parton evolution at small values of Bjorken x. One of them is based on the Balitsky-Fadin-Kuraev-Lipatov (BFKL) evolution equation and generates fully differential parton distributions in momentum space making use of reggeized gluons. The other one is based on the Catani-Ciafaloni-Fiorani-Marchesini (CCFM) partonic kernel where QCD coherence effects are introduced. It has been argued that both approaches agree with each other in the x -> 0 limit. We show that this is not the case for azimuthal angle dependent quantities since at high energies the BFKL approach is dominated by its zero conformal spin component while the CCFM gluon Green function receives contributions from all conformal spins even at very small x.
description: 19 pages, 19 figures
Vergilii Maronis dreyzehen Bücher von dem tewren Helden Enea : was der zu Wasser und Land bestanden : jetzund von newem widerumb ubersehen mit fleiss corrigiert und schönen Figuren geziert
Creators: name: , Virgil
Publisher: name: Zu Franckfurdt : David Zöpffeln
Year: 2016

description: Bound in stamped leather over boards, with metal clasps. Ornamented initials and illustrations.
A Simple Computational Model for Acceptance/Rejection of Binary Sequence Generators
Creators: name: Fúster-Sabater, Amparo
name: García-Mochales, Pedro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cryptography and Security (cs.CR)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: E.3; F.1.1
subject: 94A60, 11T71, 14G50

description: A simple binary model to compute the degree of balancedness in the output sequence of LFSR-combinational generators has been developed. The computational method is based exclusively on the handling of binary strings by means of logic operations. The proposed model can serve as a deterministic alternative to existing probabilistic methods for checking balancedness in binary sequence generators. The procedure here described can be devised as a first selective criterium for acceptance/rejection of this type of generators.
description: 16 pages, 0 figures
Bayesian Inference for Sequential Treatments Under Latent Sequential Ignorability
Creators: name: Ricciardi, Federico
name: Mattei, Alessandra
name: Mealli, Fabrizia
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Statistics
subject: FOS: Mathematics
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: Computational Biology

description: We focus on causal inference for longitudinal treatments, where units are assigned to treatments at multiple time points, aiming to assess the effect of different treatment sequences on an outcome observed at a final point. A common assumption in similar studies is sequential ignorability (SI): treatment assignment at each time point is assumed independent of future potential outcomes given past observed outcomes and covariates. SI is questionable when treatment participation depends on individual choices, and treatment assignment may depend on unobservable quantities associated with future outcomes. We rely on principal stratification to formulate a relaxed version of SI: latent sequential ignorability (LSI) assumes that treatment assignment is conditionally independent on future potential outcomes given past treatments, covariates, and principal stratum membership, a latent variable defined by the joint value of observed and missing intermediate outcomes. We evaluate SI and LSI, using theoretical arguments and simulation studies to investigate the performance of the two assumptions when one holds and inference is conducted under both. Simulations show that when SI does not hold, inference performed under SI leads to misleading conclusions. Conversely, LSI generally leads to correct posterior distributions, irrespective of which assumption holds.
Conflicting standards :Catholic theology v. worldly philosophy. By James M. Gillis.
Creators: name: Gillis, James M. (James Martin), 1876-1957
Publisher: name: University of Notre Dame
Year: 2023

description:
 Eight addressed delivered in the Catholic Hour, sponsored by the National Council of Catholic Men, with the co-operation of the National Broadcasting Company and its associated stations (On Sundays from November 6 to December 25, 1932).
 Catholic hour (Radio program)
Studentized Sensitivity Analysis for the Sample Average Treatment Effect in Paired Observational Studies
Creators: name: Fogarty, Colin B.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: A fundamental limitation of causal inference in observational studies is that perceived evidence for an effect might instead be explained by factors not accounted for in the primary analysis. Methods for assessing the sensitivity of a study’s conclusions to unmeasured confounding have been established under the assumption that the treatment effect is constant across all individuals. In the potential presence of unmeasured confounding, it has been argued that certain patterns of effect heterogeneity may conspire with unobserved covariates to render the performed sensitivity analysis inadequate. We present a new method for conducting a sensitivity analysis for the sample average treatment effect in the presence of effect heterogeneity in paired observational studies. Our recommended procedure, called the studentized sensitivity analysis, represents an extension of recent work on studentized permutation tests to the case of observational studies, where randomizations are no longer drawn uniformly. The method naturally extends conventional tests for the sample average treatment effect in paired experiments to the case of unknown, but bounded, probabilities of assignment to treatment. In so doing, we illustrate that concerns about certain sensitivity analyses operating under the presumption of constant effects are largely unwarranted.
Abelian ideals of a Borel subalgebra and subsets of the Dynkin diagram
Creators: name: Panyushev, Dmitri I.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: Let $g$ be a simple Lie algebra and $Ab(g)$ the set of Abelian ideals of a Borel subalgebra of $g$. In this note, an interesting connection between $Ab(g)$ and the subsets of the Dynkin diagram of $g$ is discussed. We notice that the number of abelian ideals with $k$ generators equals the number of subsets of the Dynkin diagram with $k$ connected components. For $g$ of type $A_n$ or $C_n$, we provide a combinatorial explanation of this coincidence by constructing a suitable bijection. We also construct another general bijection between $Ab(g)$ and the subsets of the Dynkin diagram, which is based on the theory developed by Peterson and Kostant.
description: 8 pages
Feature selection by canonical correlation search in high-dimensional multi-response models with complex group structures
Creators: name: Luo, Shan
name: Chen, Zehua
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: High-dimensional multi-response models with complex group structures in both the response variables and the covariates arise from current researches in important fields such as genetics and medicine. However, no enough research has been done on such models. One of a few researches, if not the only one, is the paper by Li et al. (2015) where the sparse group LASSO approach is extended to such models. In this article, we propose a novel approach named the sequential canonical correlation search (SCCS) procedure. In the SCCS procedure, the nonzero group by group blocks of regression coefficients are searched stepwise using a canonical correlation measure. Each step of the procedure consists of a block selection and a sparsity identification. The model selection criterion, EBIC, is used as the stopping rule of the procedure. We establish the selection consistency of the SCCS procedure and conduct simulation studies for the comparison of existing methods. The SCCS procedure has two advantages over the sparse grouped Lasso method: (i) it is more accurate in the identification of nonzero coefficient blocks and their nonzero entries, and (ii) its implementation is not limited by the dimensionality of the models and requires much less computation. A real example in genetic studies is also considered.
Johannis Sleidani Warhaftige Beschreibung allerr Händel, so sich in Glaubens Sachen vnnd weltlichem Regiment, vnter dem grossmächtigsten Keyser Carln dem Fünfften, zugetragen vnnd verlauffen haben, erstlich in lateinischer Sprach in sechs vnd zwentzig Bücher getheilt ...
Creators: name: Sleidanus, Johannes, 1506-1556
Publisher: name: Getruckt zu Franckfurt am Main : durch Dauidem Zephelium
Year: 2016

description: Title in red and black, head-pieces, tail-pieces, marginal notes and ornamented initials.

 Printed on both sides of leaves.

 Bound in leather over wooden boards, with metal clasps.