cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
NEMURO—a lower trophic level model for the North Pacific marine ecosystem
Creators: name: Kashiwai, Makoto
name: Kantakov, Gennady
name: Zvalinsky, Vladimir
name: Kang, Sukyung
name: Noguchi-Aita, Maki
name: Yamanaka, Yasuhiro
name: Smith, S. Lan
name: Eslinger, David
name: Tsuda, Atsushi
name: Fujii, Masahiko
name: Komatsu, Kosei
name: Tadokoro, Kazuaki
name: Ware, Daniel
name: Werner, Francisco
name: Huang, Daji
name: Navrotsky, Vadim
name: Megrey, Bernard
name: Kim, Hyun-cheol
name: Zuenko, Yury
name: Ishida, Yukimasa
name: Azumaya, Tomonori
name: Iizumi, Hitoshi
name: Yamamura, Orio
name: Hashimoto, Shinji
name: Yokouchi, Katsumi
name: Kishi, Michio
name: Zhang, Jing
name: Yoshie, Naoki
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: The PICES CCCC (North Pacific Marine Science Organization, Climate Change and Carrying Capacity program) MODEL Task Team achieved a consensus on the structure of a prototype lower trophic level ecosystem model for the North Pacific Ocean, and named it the North Pacific Ecosystem Model for Understanding Regional Oceanography, “NEMURO”. Through an extensive dialog between modelers, plankton biologists and oceanographers, an extensive review was conducted to define NEMURO’s process equations and their parameter values for distinct geographic regions. We present in this paper the formulation, structure and governing equations of NEMURO as well as examples to illustrate its behavior. NEMURO has eleven state variables: nitrate, ammonium, small and large phytoplankton biomass, small, large and predatory zooplankton biomass, particulate and dissolved organic nitrogen, particulate silica, and silicic acid concentration. Several applications reported in this issue of Ecological Modelling have successfully used NEMURO, and an extension that includes fish as an additional state variable. Applications include studies of the biogeochemistry of the North Pacific, and variations of its ecosystem’s lower trophic levels and two target fish species at regional and basin-scale levels, and on time scales from seasonal to interdecadal.
{pdf download} Verity
Creators: name: Barraza
Publisher: name: Zenodo
Year: 2024

description: Verity pan Colleen Hoover, Pauline Vidal

Télécharger eBook gratuit ➡ Link

Caractéristiques

Verity

Colleen Hoover, Pauline Vidal

Nb. de pages: 364

Format: Pdf, ePub, MOBI, FB2

ISBN: 9782755664331

Editeur: Hugo poche

Date de parution: 2023

 

 

 

Téléchargement gratuit d'ebooks en anglais Verity 9782755664331 par Colleen Hoover, Pauline Vidal MOBI iBook

 

Overview

La vie a toujours souri à Verity Crawford. Ses livres font d'elle une auteur star, sa maison du Vermont est splendide et elle forme avec Jeremy, son mari, un couple parfait. Mais un jour, sur une route, son rêve tourne au cauchemar. L'accident l'empêche d'écrire, transforme sa trop grande maison en prison, et menace de l'éloigner de Jeremy. La vie n'a jamais été tendre avec Lowen ashleigh. Ses livres ne rencontrent qu'un accueil poli, ses finances sont au plus mal et ses histoires d'amour sont des feux de paille. Jusqu'à ce que Jeremy la recrute pour devenir le ghostwriter de Verity et terminer à sa place sa série à succès. Pour Lowen, aussi incongrue que soit la proposition, l'occasion est beaucoup trop belle pour ne pas la saisir, et Jeremy beaucoup trop séduisant pour qu'elle lui dise non. Mais en découvrant, dans les papiers de Verity, ce qui semble être son autobiographie, Lowen va voir se dessiner, page après page, le portrait d'une femme épouvantable, prête au plus atroce des crimes pour ne pas perdre ce qu'elle a, et prompte à toutes les perversités lorsqu'elle se sent menacée. Et aux yeux de Verity, Lowen est désormais une menace.
Forming Double-barred Galaxies From Dynamically Cool Inner Disks
Creators: name: Du, Min
name: Shen, Juntai
name: Debattista, Victor P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: About one third of early-type barred galaxies host small-scale secondary bars. The formation and evolution of such double-barred galaxies remain far from being well understood. In order to understand the formation of such systems, we explore a large parameter space of isolated pure-disk simulations. We show that a dynamically cool inner disk embedded in a hotter outer disk can naturally generate a steady secondary bar while the outer disk forms a large-scale primary bar. The independent bar instabilities of inner and outer disks result in long-lived double-barred structures whose dynamical properties are comparable with observations. This formation scenario indicates that the secondary bar might form from the general bar instability, the same as the primary bar. Under some circumstances, the interaction of the bars and the disk leads to the two bars aligning or single, nuclear, bars only. Simulations that are cool enough of the center to experience clump instabilities may also generate steady double-barred galaxies. In this case, the secondary bars are "fast", i.e., the bar length is close to the co-rotation radius. This is the first time that double-barred galaxies containing a fast secondary bar are reported. Previous orbit-based studies had suggested that fast secondary bars are not dynamically possible.
description: Accepted by ApJ; 10 pages; emulateapj format. A movie showing the evolution of the standard double-barred system is available at: http://hubble.shao.ac.cn/~dumin/S2B/Video1.gif ; another one showing the coupled double-barred system is available at: http://hubble.shao.ac.cn/~dumin/S2B/Video2.gif
MIDAS Regressions: Further Results and New Directions
Creators: name: Ghysels, Eric
name: Valkanov, Rossen
name: Sinko, Arthur
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2007

description: We explore Mixed Data Sampling (henceforth MIDAS) regression models. The regressions involve time series data sampled at different frequencies. Volatility and related processes are our prime focus, though the regression method has wider applications in macroeconomics and  nance, among other areas. The regressions combine recent developments regarding estimation of volatility and a not so recent literature on distributed lag models. We study various lag structures to parameterize parsimoniously the regressions and relate them to existing models. We also propose several new extensions of the MIDAS framework. The paper concludes with an empirical section where we provide further evidence and new results on the risk-return tradeoff. We also report empirical evidence on microstructure noise and volatility forecasting.
Efficient Stochastic Programming in Julia
Creators: name: Biel, Martin
name: Johansson, Mikael
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optimization and Control (math.OC)
subject: Mathematical Software (cs.MS)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 90C15, 90C06, 90C90

description: We present StochasticPrograms.jl, a user-friendly and powerful open-source framework for stochastic programming written in the Julia language. The framework includes both modeling tools and structure-exploiting optimization algorithms. Stochastic programming models can be efficiently formulated using expressive syntax and models can be instantiated, inspected, and analyzed interactively. The framework scales seamlessly to distributed environments. Small instances of a model can be run locally to ensure correctness, while larger instances are automatically distributed in a memory-efficient way onto supercomputers or clouds and solved using parallel optimization algorithms. These structure-exploiting solvers are based on variations of the classical L-shaped and progressive-hedging algorithms. We provide a concise mathematical background for the various tools and constructs available in the framework, along with code listings exemplifying their usage. Both software innovations related to the implementation of the framework and algorithmic innovations related to the structured solvers are highlighted. We conclude by demonstrating strong scaling properties of the distributed algorithms on numerical benchmarks in a multi-node setup.
(3359) Hugh Lonsdale Brooksbank
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Download Pdf Twisted Games - Tome 02  - Games
Creators: name: Ryan
Publisher: name: Zenodo
Year: 2024

description: Twisted Games - Tome 02 - Games pan Ana Huang

Télécharger eBook gratuit ➡ Link

Caractéristiques

Twisted Games - Tome 02 - Games

Ana Huang

Nb. de pages: 1

Format: Pdf, ePub, MOBI, FB2

ISBN: 9782755670547

Editeur: Hugo Roman

Date de parution: 2023

 

 

 

Ebook pour le téléchargement de téléphone portable Twisted Games - Tome 02 - Games (French Edition) par Ana Huang DJVU

 

Overview

Rhys Larsen est un garde du corps accompli : froid, efficace et veillant à ne jamais s'impliquer auprès de ses clients. Ou clientes. Mais il se rend vite compte que Bridget von Asheberg va lui donner du fil à retordre. C'est une princesse lumineuse, belle, qui devient un fruit défendu pour lui. Bridget sait quel est son devoir et son avenir depuis l'abdication de son frère : un mariage arrangé qui l'intéresse peu. Surtout que son garde du corps suscite chez elle des désirs qu'elle a du mal à cacher. Sa nouvelle fonction n'est pas sans danger non plus. Et Rhys va devoir garder toute son efficacité pour la protéger.
Supporting Information file from On the colour of wing scales in butterflies: iridescence and preferred orientation of single gyroid photonic crystals.
Creators: name: Corkery, Robert W.
name: Tyrode, Eric C.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Biophysics
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: Lycaenid butterflies from the genera Callophrys, Cyanophrys and Thecla have evolved remarkable biophotonic gyroid nanostructures within their wing scales that have only recently been replicated by nanoscale additive manufacturing. These nanostructures selectively reflect parts of the visible spectrum to give their characteristic non-iridescent, matte-green appearance, despite a distinct blue–green–yellow iridescence predicted for individual crystals from theory. It has been hypothesized that the organism must achieve its uniform appearance by growing crystals with some restrictions on the possible distribution of orientations, yet preferential orientation observed in Callophrys rubi confirms that this distribution need not be uniform. By analysing scanning electron microscope and optical images of 912 crystals in three wing scales, we find no preference for their rotational alignment in the plane of the scales. However, crystal orientation normal to the scale was highly correlated to their colour at low (conical) angles of view and illumination. This correlation enabled the use of optical images, each containing up to 104–105 crystals, for concluding the preferential alignment seen along the <100> at the level of single scales, appears ubiquitous. By contrast, <110> orientations were found to occur at no greater rate than that expected by chance. Above a critical cone angle, all crystals reflected bright green light indicating the dominant light scattering is due to the predicted band gap along the <110> direction, independent of the domain orientation. Together with the natural variation in scale and wing shapes, we can readily understand the detailed mechanism of uniform colour production and iridescence suppression in these butterflies. It appears that the combination of preferential alignment normal to the wing scale, and uniform distribution within the plane is a near optimal solution for homogenizing the angular distribution of the <110> band gap relative to the wings. Finally, the distributions of orientations, shapes, sizes and degree of order of crystals within single scales provide useful insights for understanding the mechanisms at play in the formation of these biophotonic nanostructures.
Alternatives to the EM Algorithm for ML-Estimation of Location, Scatter Matrix and Degree of Freedom of the Student-$t$ Distribution
Creators: name: Hasannasab, Marzieh
name: Hertrich, Johannes
name: Laus, Friederike
name: Steidl, Gabriele
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistics Theory (math.ST)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, we consider maximum likelihood estimations of the degree of freedom parameter $ν$, the location parameter $μ$ and the scatter matrix $Σ$ of the multivariate Student-$t$ distribution. In particular, we are interested in estimating the degree of freedom parameter $ν$ that determines the tails of the corresponding probability density function and was rarely considered in detail in the literature so far. We prove that under certain assumptions a minimizer of the negative log-likelihood function exists, where we have to take special care of the case $ν\rightarrow \infty$, for which the Student-$t$ distribution approaches the Gaussian distribution. As alternatives to the classical EM algorithm we propose three other algorithms which cannot be interpreted as EM algorithm. For fixed $ν$, the first algorithm is an accelerated EM algorithm known from the literature. However, since we do not fix $ν$, we cannot apply standard convergence results for the EM algorithm. The other two algorithms differ from this algorithm in the iteration step for $ν$. We show how the objective function behaves for the different updates of $ν$ and prove for all three algorithms that it decreases in each iteration step. We compare the algorithms as well as some accelerated versions by numerical simulation and apply one of them for estimating the degree of freedom parameter in images corrupted by Student-$t$ noise.
[PDF/Kindle] Someone Like You by Karen Kingsbury
Creators: name: Principato
Publisher: name: Zenodo
Year: 2024

description: Someone Like You by Karen Kingsbury

 

 

Download Book ➡ Link

Read Book Online ➡ Link

 

 

Someone Like You

Karen Kingsbury

Page: 320

Format: pdf, ePub, mobi, fb2

ISBN: 9781668023730

Publisher: Atria Books

 

Free it ebook download Someone Like You 9781668023730 in English

Read in your browser Someone Like You EPUB PDF Download Read Karen Kingsbury Online file sharing read e-book online. Read it on your Kindle device, PC, phones or tablets Audio Download. Fans love new book PDF Someone Like You by Karen Kingsbury EPUB Download. Format PDF | EPUB | MOBI ZIP RAR files. PDF Someone Like You by Karen Kingsbury EPUB Download Ready for reading and downloading. PDF Someone Like You by Karen Kingsbury EPUB Download Open now in any browser there's no registration and complete book is free. Publication Date of this book PDF Someone Like You by Karen Kingsbury EPUB Download. Read it on your Kindle device, PC, phones or tablets... Available in epub, pdf and mobi format EPUB Someone Like You By Karen Kingsbury PDF Download, reviewed by readers. Download from the publisher PDF Someone Like You by Karen Kingsbury EPUB Download iBooks on your Mac or iOS device.

Someone Like You EPUB PDF Download Read Karen Kingsbury Kindle, PC, mobile phones or tablets. EPUB Someone Like You By Karen Kingsbury PDF Download Open now in any browser there's no registration and complete book is free. Read in your browser PDF Someone Like You by Karen Kingsbury EPUB Download Online file sharing and storage, read e-book online. Downloading from the publisher Someone Like You EPUB PDF Download Read Karen Kingsbury. Formats Available : PDF, ePub, Mobi, doc Total Reads - Total Downloads - File Size PDF The Crooked Staircase, Jane EPUB Someone Like You By Karen Kingsbury PDF Download View and read for free. Available in epub, pdf and mobi format PDF Someone Like You by Karen Kingsbury EPUB Download, reviewed by readers.

Best book torrent sites Download it here and read it on your Kindle device. EPUB Someone Like You By Karen Kingsbury PDF Download ISBN novel zip, rar. Format PDF | EPUB | MOBI ZIP RAR files. Read in your browser EPUB Someone Like You By Karen Kingsbury PDF Download Online file sharing and storage, read e-book online. Torrent EPUB Someone Like You By Karen Kingsbury PDF Download and online reading may begin. Format PDF | EPUB | MOBI ZIP RAR files. PDF Someone Like You by Karen Kingsbury EPUB Download View and read for free. You can download your books fast Someone Like You. PDF Someone Like You by Karen Kingsbury EPUB Download Ready for reading and downloading.
State Space Models and MIDAS Regressions
Creators: name: Wright, Jonathan
name: Bai, Jennie
name: Ghysels, Eric
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: We examine the relationship between MIDAS regressions and Kalman filter state space models applied to mixed frequency data. In general, the latter involves a system of equations, whereas in contrast MIDAS regressions involve a (reduced form) single equation. As a consequence, MIDAS regressions might be less efficient, but also less prone to specification errors. First we examine how MIDAS regressions and Kalman filters match up under ideal circumstances, that is in population, and in cases where all the stochastic processes - low and high frequency - are correctly specified by a linear state space model. We characterize cases where the MIDAS regression exactly replicates the steady state Kalman filter weights. In cases where the MIDAS regression is only an approximation, we compute the approximation error and find it to be small (using two different metrics). We also study how MIDAS regressions perform in comparison to the Kalman filter when the latter is subject to specification errors. Our findings favor MIDAS regressions, as their approximation errors are typically small in comparison to the model specification errors of the Kalman filter. The paper concludes with an empirical application comparing MIDAS and Kalman filtering to predict future GDP growth, using monthly macroeconomic series.
[Pdf/ePub] L'art de faire l'amour à une femme by Linda Lou Paget download ebook
Creators: name: Driscoll
Publisher: name: Zenodo
Year: 2024

description: L'art de faire l'amour à une femme pan Linda Lou Paget

Télécharger eBook gratuit ➡ Link

Caractéristiques

L'art de faire l'amour à une femme

Linda Lou Paget

Nb. de pages: 256

Format: Pdf, ePub, MOBI, FB2

ISBN: 9782501150385

Editeur: Marabout

Date de parution: 2020

 

 

 

Ebooks gratuits pour le téléchargement de soins infirmiers L'art de faire l'amour à une femme (French Edition) DJVU iBook RTF par Linda Lou Paget

 

Overview

Ce petit guide contient toutes tes informations les plus fiables pour décupler Le plaisir du couple. Après L'Art de faire l'amour à un homme, l'auteure s'adresse aux hommes, parfois freinés dans leurs initiatives par certaines lacunes sur le sujet, d'autant que la société leur attribue un savoir érotique infini. Elle leur apprend à parfaire leur technique pour procurer à leur partenaire un plaisir inouï, tout en rappelant qu'un bon amant est, avant tout, un homme attentif aux désirs de sa compagne.
Laser Cooling of Silica Glass
Creators: name: Mobini, Esmaeil
name: Rostami, Saeid
name: Peysokhan, Mostafa
name: Albrecht, Alexander
name: Kuhn, Stefan
name: Hein, Sigrun
name: Hupel, Christian
name: Nold, Johannes
name: Haarlammert, Nicoletta
name: Schreiber, Thomas
name: Eberhardt, Ramona
name: Tunnermann, Andreas
name: Sheik-Bahae, Mansoor
name: Mafi, Arash
Publisher: name: arXiv
Year: 2019
Subjects: subject: Optics (physics.optics)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Laser cooling of a solid is achieved when a coherent laser illuminates the material in the red tail of its absorption spectrum, and the heat is carried out by anti-Stokes fluorescence of the blue-shifted photons. Solid-state laser cooling has been successfully demonstrated in several materials, including rare-earth-doped crystals and glasses. Silica glass, being the most widely used optical material, has so far evaded all laser cooling attempts. In addition to its fundamental importance, many potential applications can be conceived for anti-Stokes fluorescence cooling of silica. These potential applications range from the substrate cooling of optical circuits for quantum information processing and cryogenic cooling of mirrors in high-sensitivity interferometers for gravitational wave detection to the heating reduction in high-power fiber lasers and amplifiers. Here we report the net cooling of high-purity Yb-doped silica glass samples that are primarily developed for high-power fiber laser applications, where special care has been taken in the fabrication process to reduce their impurities and lower their parasitic background loss. The non-radiative decay rate of the excited state in Yb ions is very small in these glasses due to the low level of impurities, resulting in near-unity quantum efficiency. We report the measurement of the cooling efficiency as a function of the laser wavelength, from which the quantum efficiency of the silica glass is calculated.
Supporting Information file from On the colour of wing scales in butterflies: iridescence and preferred orientation of single gyroid photonic crystals
Creators: name: Corkery, Robert W.
name: Tyrode, Eric C.
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Biophysics
subject: 90301 Biomaterials
subject: FOS: Medical engineering

description: Lycaenid butterflies from the genera Callophrys, Cyanophrys and Thecla have evolved remarkable biophotonic gyroid nanostructures within their wing scales that have only recently been replicated by nanoscale additive manufacturing. These nanostructures selectively reflect parts of the visible spectrum to give their characteristic non-iridescent, matte-green appearance, despite a distinct blue–green–yellow iridescence predicted for individual crystals from theory. It has been hypothesized that the organism must achieve its uniform appearance by growing crystals with some restrictions on the possible distribution of orientations, yet preferential orientation observed in Callophrys rubi confirms that this distribution need not be uniform. By analysing scanning electron microscope and optical images of 912 crystals in three wing scales, we find no preference for their rotational alignment in the plane of the scales. However, crystal orientation normal to the scale was highly correlated to their colour at low (conical) angles of view and illumination. This correlation enabled the use of optical images each containing up to 104–105 crystals for concluding the preferential alignment seen along the <100> at the level of single scales, appears ubiquitous. By contrast, <110> orientations were found to occur at no greater rate than that expected by chance. Above a critical cone angle, all crystals reflected bright green light indicating the dominant light scattering is due to the predicted band gap along the <110> direction, independent of the domain orientation. Together with the natural variation in scale and wing shapes, we can readily understand the detailed mechanism of uniform colour production and iridescence suppression in these butterflies. It appears that the combination of preferential alignment normal to the scale and uniform distribution within the plane is fairly optimized for homogeneous angular distribution of the <110> band gap relative to the wings. Finally, the distributions of orientations, shapes, sizes and degree of order of crystals within single scales provide useful insights for understanding the mechanisms at play in the formation of these biophotonic nanostructures.
(3354) Ellen Merriall Dodson
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Characterization of the colorectal cancer–associated enhancer MYC-335 at 8q24: the role of rs67491583
Creators: name: Keku, Temitope
name: de la Chapelle, Albert
name: Pennison, Michael J.
name: Yan, Jian
name: Kaasinen, Eevi
name: Askhtorab, Hassan
name: Culver, Daniel A.
name: Hautaniemi, Sampsa
name: Sandler, Robert S.
name: Eng, Charis
name: Gylfe, Alexandra E.
name: Turunen, Mikko
name: Manne, Upender
name: Haiman, Christopher A.
name: Li, Li
name: Henderson, Brian E.
name: Smoot, Duane
name: Kalady, Matthew F.
name: Ellis, Nathan A.
name: Tuupanen, Sari
name: Taipale, Jussi
name: Kupfer, Sonia S.
name: Pasche, Boris
name: Aaltonen, Lauri A.
name: Hampel, Heather
name: Le Marchand, Loic
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Recent genome-wide association studies have identified multiple regions at 8q24 that confer susceptibility to many cancers. In our previous work, we showed that the colorectal cancer (CRC) risk variant rs6983267 at 8q24 resides within a TCF4 binding site at the MYC-335 enhancer, with the risk allele G having a stronger binding capacity and Wnt responsiveness. Here, we searched for other potential functional variants within MYC-335. Genetic variation within MYC-335 was determined in samples from individuals of European, African, and Asian descent, with emphasis on variants in putative transcription factor binding sites. A 2-bp GA deletion rs67491583 was found to affect a growth factor independent (GFI) binding site and was present only in individuals with African ancestry. Chromatin immunoprecipitation performed in heterozygous cells showed that the GA deletion had an ability to reduce binding of the transcriptional repressors GFI1 and GFI1b. Screening of 1,027 African American colorectal cancer cases and 1,773 healthy controls did not reveal evidence for association (odds ratio: 1.17, 95% confidence interval: 0.97–1.41, P = 0.095). In this study, rs67491583 was identified as another functional variant in the CRC-associated enhancer MYC-335, but further studies are needed to establish the role of rs67491583 in the colorectal cancer predisposition of African Americans.
The stationary SQUID
Creators: name: Berger, Jorge
Publisher: name: arXiv
Year: 2015
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: In the customary mode of operation of a SQUID, the electromagnetic field in the SQUID is an oscillatory function of time. In this situation, electromagnetic radiation is emitted, and couples to the sample. This is a back-action that can alter the state that we intend to measure. A circuit that could perform as a stationary SQUID consists of a loop of superconducting material that encloses the magnetic flux, connected to a superconducting and to a normal electrode. This circuit does not contain Josephson junctions, or any other miniature feature. We study the evolution of the order parameter and of the electrochemical potential in this circuit; they converge to a stationary regime and the voltage between the electrodes depends on the enclosed flux. We obtain expressions for the power dissipation and for the heat transported by the electric current; the validity of these expressions does not rely on a particular evolution model for the order parameter. We evaluate the influence of fluctuations. For a SQUID perimeter of the order of 1$μ$m and temperature $0.9T_c$, we obtain a flux resolution of the order of $10^{-5}Φ_0/$Hz$^{1/2}$; the resolution is expected to improve as the temperature is lowered.
description: Heat dissipation due to supercurrent has been revised; references have been added
A NEW PROJECTION-TYPE SPLIT-SAMPLE SCORE TEST IN LINEAR INSTRUMENTAL VARIABLES REGRESSION
Creators: name: Robins, James
name: Richardson, Thomas
name: Zivot, Eric
name: Chaudhuri, Saraswata
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: In this paper we introduce a new method of projection-type inference and describe it in the context of two stage least squares-based split-sample inference on subsets of structural coefficients in a linear instrumental variables regression model. The use of the new method not only guards against the uncontrolled over-rejection of the true value of the parameters of interest, but also reduces the conservativeness of the usual method of projection proposed by Dufour and his co-authors.
Nanoparticle delivery of HIF1α siRNA combined with photodynamic therapy as a potential treatment strategy for head-and-neck cancer
Creators: name: Chen, Wei Hua
name: Lecaros, Rumwald Leo G.
name: Tseng, Yu Cheng
name: Huang, Leaf
name: Hsu, Yih Chih
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2015

description: Combination therapy has become a major strategy in cancer treatment. We used anisamide-targeted lipid–calcium–phosphate (LCP) nanoparticles to efficiently deliver HIF1α siRNA to the cytoplasm of sigma receptor-expressing SCC4 and SAS cells that were also subjected to photodynamic therapy (PDT). HIF1α siRNA nanoparticles effectively reduced HIF1α expression, increased cell death, and significantly inhibited cell growth following photosan-mediated photodynamic therapy in cultured cells. Intravenous injection of the same nanoparticles into human SCC4 or SAS xenografted mice likewise resulted in concentrated siRNA accumulation and reduced HIF1α expression in tumor tissues. When combined with photodynamic therapy, HIF1α siRNA nanoparticles enhanced the regression in tumor size resulting in a ~40% decrease in volume after 10 days. Combination therapy was found to be substantially more effective than either HIF1α siRNA or photodynamic therapy alone. Results from caspase-3, TUNEL, and CD31 marker studies support this conclusion. Our results show the potential use of LCP nanoparticles for efficient delivery of HIF1α siRNA into tumors as part of combination therapy along with PDT in the treatment of oral squamous cell carcinoma.
Evolution of the stiffness tetrad in fiber-reinforced materials under large plastic strain : material plasticity
Creators: name: Weber, Martin
name: Glüge, Rainer
name: Altenbach, Holm
Publisher: name: Universitäts- und Landesbibliothek Sachsen-Anhalt
Year: 2021
Subjects: subject: Stiffness tetrad
subject: Fibermaterials
subject: Large plastic strain
subject: Multiplicative decomposition
subject: Isomorphy concept
subject: 621.8

description: The main aim of this work is to track the evolution of the stiffness tetrad during large plastic strain. Therefore, the framework of a general finite plasticity theory is developed. Some special cases are examined, and the case of a material plasticity theory is considered more closely. Its main feature is that the elasticity law changes during plastic deformations, for whichwe develop an approach.As samplematerials,we use three types of fiber-reinforced composites. For numerical experiments and verification of the model’s predictions, finite element simulations of representative volume elements for uni-, bi- and tri-directional reinforced materials with periodic boundary conditions are used. From these, we extract the stiffness tetrads before and after large deformations of the material.We quantify the change of the stiffness tetrads due to the fiber reorientation. Finally,we propose an analytical evolutionwith three parameters that account reasonablywell for the evolution of the stiffness tetrad.
ON TAIL INDEX ESTIMATION FOR DEPENDENT, HETEROGENEOUS DATA
Creators: name: Hill, Jonathan
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: In this paper we analyze the asymptotic properties of the popular distribution tail index estimator by B. Hill (1975) for dependent, heterogeneous processes. We develop new extremal dependence measures that characterize a massive array of linear, nonlinear, and conditional volatility processes with long or short memory. We prove the Hill-estimator is weakly and uniformly weakly consistent for processes with extremes that form mixingale sequences, and asymptotically normal for processes with extremes that are Near Epoch Dependent on the mixing extremes of some arbitrary process. The extremal persistence assumptions in this paper are known to hold for mixing, Lp-NED and some non-Lp-NED processes, including ARFIMA, FIGARCH, explosive GARCH, nonlinear ARMA-GARCH, and bilinear processes, and nonlinear distributed lags like random coe¢ cient and regime switching autoregressions. Finally, we deliver a simple nonparametric estimator of the asymptotic variance of the Hill-estimator, and prove consistency for processes with NED extremes.
Inside the Bondi radius of M87
Creators: name: Russell, H. R.
name: Fabian, A. C.
name: McNamara, B. R.
name: Broderick, A. E.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Chandra X-ray observations of the nearby brightest cluster galaxy M87 resolve the hot gas structure across the Bondi accretion radius of the central supermassive black hole, a measurement possible in only a handful of systems but complicated by the bright nucleus and jet emission. By stacking only short frame-time observations to limit pileup, and after subtracting the nuclear PSF, we analysed the X-ray gas properties within the Bondi radius at 0.12-0.22 kpc (1.5-2.8 arcsec), depending on the black hole mass. Within 2 kpc radius, we detect two significant temperature components, which are consistent with constant values of 2 keV and 0.9 keV down to 0.15 kpc radius. No evidence was found for the expected temperature increase within ~0.25 kpc due to the influence of the SMBH. Within the Bondi radius, the density profile is consistent with $ρ\propto r^{-1}$. The lack of a temperature increase inside the Bondi radius suggests that the hot gas structure is not dictated by the SMBH's potential and, together with the shallow density profile, shows that the classical Bondi rate may not reflect the accretion rate onto the SMBH. If this density profile extends in towards the SMBH, the mass accretion rate onto the SMBH could be at least two orders of magnitude less than the Bondi rate, which agrees with Faraday rotation measurements for M87. We discuss the evidence for outflow from the hot gas and the cold gas disk and for cold feedback, where gas cooling rapidly from the hot atmosphere could feed the cirumnuclear disk and fuel the SMBH. At 0.2 kpc radius, the cooler X-ray temperature component represents ~20% of the total X-ray gas mass and, by losing angular momentum to the hot gas component, could provide a fuel source of cold clouds within the Bondi radius.
description: 14 pages, 8 figures, accepted by MNRAS
(3356) James Ingram
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
Acoustic scattering by two fluid confocal prolate spheroids
Creators: name: Lavia, Edmundo Federico
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The exact spheroidal-function series solution for the time-harmonic acoustic scattering of a plane wave by two fluid confocal prolate spheroids is developed and a numerical implementation is formulated and validated by independent methods. The two spheroids define three regions in which the acoustic fields are expanded in terms of spheroidal wave functions multiplied by unknown coefficients. These expansions are forced to satisfy the boundary conditions and by using the orthogonality properties of the involved functions an infinite matricial system for the coefficients is obtained. The resulting system is then solved through a truncation procedure. The implementation has no limitations regarding the sound speed and density of the three media involved or in the incidence frequency.
description: 15 pages, 6 figures
Getting Under the Hood: How and for Whom Does Increasing Course Structure Work?
Creators: name: Hogan, Kelly A.
name: Eddy, Sarah L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The authors explore the transferability of an active-learning intervention and expand upon the original studies by 1) disaggregating student populations to identify for whom the intervention works best and 2) exploring possible proximate mechanisms (changes in student behaviors and perceptions) that could mediate the observed increase in achievement.At the college level, the effectiveness of active-learning interventions is typically measured at the broadest scales: the achievement or retention of all students in a course. Coarse-grained measures like these cannot inform instructors about an intervention's relative effectiveness for the different student populations in their classrooms or about the proximate factors responsible for the observed changes in student achievement. In this study, we disaggregate student data by racial/ethnic groups and first-generation status to identify whether a particular intervention—increased course structure—works better for particular populations of students. We also explore possible factors that may mediate the observed changes in student achievement. We found that a “moderate-structure” intervention increased course performance for all student populations, but worked disproportionately well for black students—halving the black–white achievement gap—and first-generation students—closing the achievement gap with continuing-generation students. We also found that students consistently reported completing the assigned readings more frequently, spending more time studying for class, and feeling an increased sense of community in the moderate-structure course. These changes imply that increased course structure improves student achievement at least partially through increasing student use of distributed learning and creating a more interdependent classroom community.
Laws of scarcity for a finite game - exact bounds on estimations
Creators: name: Wooders, Myrna
name: Kovalenkov, Alexander
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2005

description: The “law of scarcity” is that scarceness is rewarded; recall, for example, the diamonds and water paradox. In this paper, furthering research initiated in Kelso and Crawford (1982, Econometrica 50, 1483-1504) for matching models, we demonstrate a law of scarcity for cores and approximate cores of games.
Influence of rotation on the electronic states, magnetization and persistent current in 1D quantum ring
Creators: name: Pereira, Luís Fernando C.
name: Cunha, Márcio M.
name: Silva, Edilberto O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Inertial effects can affect several properties of physical systems. In particular, in the context of quantum mechanics, such effects have been studied in diverse contexts. In this paper, starting from the Schrödinger equation for a rotating frame, we describe the influence of rotation on the energy levels of a quantum particle constrained to a one-dimensional ring in the presence of a uniform magnetic field. We also investigate how the persistent current and the magnetization in the ring are influenced by temperature and rotating effects.
CCDM Model with Spatial Curvature and The Breaking of "Dark Degeneracy"
Creators: name: Jesus, J. F.
name: Andrade-Oliveira, F.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Creation of Cold Dark Matter (CCDM), in the context of Einstein Field Equations, leads to a negative creation pressure, which can be used to explain the accelerated expansion of the Universe. Recently, it has been shown that the dynamics of expansion of such models can not be distinguished from the concordance $Λ$CDM model, even at higher orders in the evolution of density perturbations, leading at the so called "dark degeneracy". However, depending on the form of the CDM creation rate, the inclusion of spatial curvature leads to a different behavior of CCDM when compared to $Λ$CDM, even at background level. With a simple form for the creation rate, namely, $Γ\propto\frac{1}{H}$, we show that this model can be distinguished from $Λ$CDM, provided the Universe has some amount of spatial curvature. Observationally, however, the current limits on spatial flatness from CMB indicate that neither of the models are significantly favored against the other by current data, at least in the background level.
description: 13 pages, 5 figures
On the generation of some Lie-type geometries
Creators: name: Cardinali, Ilaria
name: Giuzzi, Luca
name: Pasini, Antonio
Publisher: name: arXiv
Year: 2019
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 51E24, 51B25

description: Let $X_n(K)$ be a building of Coxeter type $X_n = A_n$ or $X_n = D_n$ defined over a given division ring $K$ (a field when $X_n = D_n$). For a non-connected set $J$ of nodes of the diagram $X_n$, let $Γ(K) = Gr_J(X_n(K))$ be the $J$-Grassmannian of $X_n(K)$. We prove that $Γ(K)$ cannot be generated over any proper sub-division ring $K_0$ of $K$. As a consequence, the generating rank of $Γ(K)$ is infinite when $K$ is not finitely generated. In particular, if $K$ is the algebraic closure of a finite field of prime order then the generating rank of $Gr_{1,n}(A_n(K))$ is infinite, although its embedding rank is either $(n+1)^2-1$ or $(n+1)^2$.
description: 20 pages; revised version
Appendix from From arteries to boreholes: steady-state response of a poroelastic cylinder to fluid injection.
Creators: name: L. C. Auton
name: C. W. MacMinn
Publisher: name: The Royal Society
Year: 2017
Subjects: subject: Hydrology
subject: 90599 Civil Engineering not elsewhere classified
subject: FOS: Civil engineering
subject: 10299 Applied Mathematics not elsewhere classified
subject: FOS: Mathematics

description: Additional results and explanation
(3358) Isabel Maud Scarlett
Creators: name: Professions, Victorian
Publisher: name: University of Oxford
Year: 2022
Subjects: subject: 220201 Business and Labour History
subject: FOS: Philosophy, ethics and religion
subject: History
subject: 140203 Economic History
subject: FOS: Economics and business

description: This three-year research project began in January 2014 and investigated whether, during the Victorian period, the professions formed a distinct self-sustaining social group with its own mores and values. The project looked at 16,000 individuals drawn from census data for Alnwick, Brighton, Bristol, Dundee, Greenock, Leeds, Merthyr Tydfil, Morpeth, and Winchester. The research project was funded by the UK Economic & Social Research Council and was based at the Universities of Oxford and Northumbria.
An asymptotic radius of convergence for the Loewner equation and simulation of $SLE_k$ traces via splitting
Creators: name: Foster, James
name: Lyons, Terry
name: Margarint, Vlad
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J67, 60L90, 65C30

description: In this paper, we shall study the convergence of Taylor approximations for the backward Loewner differential equation (driven by Brownian motion) near the origin. More concretely, whenever the initial condition of the backward Loewner equation (which lies in the upper half plane) is small and has the form $Z_{0} = \varepsilon i$, we show these approximations exhibit an $O(\varepsilon)$ error provided the time horizon is $\varepsilon^{2+δ}$ for $δ> 0$. Statements of this theorem will be given using both rough path and $L^{2}(\mathbb{P})$ estimates. Furthermore, over the time horizon of $\varepsilon^{2-δ}$, we shall see that "higher degree" terms within the Taylor expansion become larger than "lower degree" terms for small $\varepsilon$. In this sense, the time horizon on which approximations are accurate scales like $\varepsilon^{2}$. This scaling comes naturally from the Loewner equation when growing vector field derivatives are balanced against decaying iterated integrals of the Brownian motion. As well as being of theoretical interest, this scaling may be used as a guiding principle for developing adaptive step size strategies which perform efficiently near the origin. In addition, this result highlights the limitations of using stochastic Taylor methods (such as the Euler-Maruyama and Milstein methods) for approximating $SLE_κ$ traces. Due to the analytically tractable vector fields of the Loewner equation, we will show Ninomiya-Victoir (or Strang) splitting is particularly well suited for SLE simulation. As the singularity at the origin can lead to large numerical errors, we shall employ the adaptive step size proposed by Tom Kennedy to discretize $SLE_κ$ traces using this splitting. We believe that the Ninomiya-Victoir scheme is the first high order numerical method that has been successfully applied to $SLE_κ$ traces.
description: 25 pages, 2 figures