cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
TAPPS Release 1: Plugin-Extensible Platform for Technical Analysis and Applied Statistics
Creators: name: Chew, Justin Sam
name: Ling, Maurice HT
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mathematical Software (cs.MS)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: We present the first release of TAPPS (Technical Analysis and Applied Statistics System); a Python implementation of a thin software platform aimed towards technical analyses and applied statistics. The core of TAPPS is a container for 2-dimensional data frame objects and a TAPPS command language. TAPPS language is not meant to be a programming language for script and plugin development but for the operational purposes. In this aspect, TAPPS language takes on the flavor of SQL rather than R, resulting in a shallower learning curve. All analytical functions are implemented as plugins. This results in a defined plugin system, which enables rapid development and incorporation of analysis functions. TAPPS Release 1 is released under GNU General Public License 3 for academic and non-commercial use. TAPPS code repository can be found at http://github.com/mauriceling/tapps.
Materi Bimtek Peningkatan Akreditasi Jurnal Ilmiah Prodi Manajemen Universitas Pamulang
Creators: name: Maulana, Asep Erlan
Publisher: name: Zenodo
Year: 2022
Subjects: Akreditasi Jurnal
Reakreditasi Jurnal

description: Materi ini disampaikan pada kegiatan Bimtek Peningkatan Akreditasi Jurnal Ilmiah Prodi Manajemen Universitas Pamulang pada tanggal 9 November 2022
Bari-Markus property for Dirac operators
Creators: name: Mykytyuk, Ya. V.
name: Puyda, D. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 34L40

description: We prove the Bari-Markus property for spectral projectors of non-self-adjoint Dirac operators on a finite interval with square-integrable matrix-valued potentials and some separated boundary conditions.
description: 7 pages
Asymptotic Freeness of Unitary Matrices in Tensor Product Spaces for Invariant States
Creators: name: Collins, Benoît
name: Lamarre, Pierre Yves Gaudreau
name: Male, Camille
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: In this paper, we pursue our study of asymptotic properties of families of random matrices that have a tensor structure. In previous work, the first- and second-named authors provided conditions under which tensor products of unitary random matrices are asymptotically free with respect to the normalized trace. Here, we extend this result by proving that asymptotic freeness of tensor products of Haar unitary matrices holds with respect to a significantly larger class of states. Our result relies on invariance under the symmetric group, and therefore on traffic probability. As a byproduct, we explore two additional generalisations: (i) we state results of freeness in a context of general sequences of representations of the unitary group -- the fundamental representation being a particular case that corresponds to the classical asymptotic freeness result for Haar unitary matrices, and (ii) we consider actions of the symmetric group and the free group simultaneously and obtain a result of asymptotic freeness in this context as well.
description: Incorporated referee comments; improved presentation and corrected statements. Accepted in Random Matrices Theory Appl
Optimization of Peptide Separations by Differential Ion Mobility Spectrometry
Creators: name: Armistead, Paul M.
name: Isenberg, Samantha L.
name: Glish, Gary L.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Differential ion mobility spectrometry (DIMS) has the ability to separate gas phase ions based on their difference in ion mobility in low and high electric fields. DIMS can be used to separate mixtures of isobaric and isomeric species indistinguishable by mass spectrometry (MS). DIMS can also be used as a filter to improve the signal-to-background of analytes in complex samples. The resolving power of DIMS separations can be improved several ways, including increasing the dispersion field and increasing the amount of helium in the nitrogen carrier gas. It has been previously demonstrated that the addition of helium to the DIMS carrier gas provides improves separations when the dispersion field is the kept constant as helium content is varied. However, helium has a lower breakdown voltage than nitrogen. Therefore, as the percent helium content in the nitrogen carrier gas is increased, the highest dispersion field accessible decreases. This work presents the trade-offs between increasing dispersion fields and using helium in the carrier gas by comparing the separation of a mixture of isobaric peptides. The maximum resolution for a separation of a mixture of three peptides with the same nominal molar mass was achieved by using a high dispersion field (~72 kV/cm) with pure nitrogen as the carrier gas within the DIMS assembly. The conditions used to achieve the maximum resolution also exhibit the lowest ion transmission through the assembly, suggesting that it is necessary to consider the trade-off between sensitivity and resolution when optimizing DIMS conditions for a given application.
Flexible Barrier Materials for Improving the Durability of Photovoltaic Devices
Creators: name: Rossi, Gabriella
Publisher: name: Universita degli studi di Salerno
Year: 2014
Subjects: subject: ING-IND/22 SCIENZA E TECNOLOGIA DEI MATERIALI
subject: Solar cells
subject: Barrier films
subject: Coating materials

description: 2012 - 2013
description: The economic viability of photovoltaic (PV) devices is strongly dependent upon equipment cost and durability. During their usage, these devices are exposed to several atmospheric degradation agents and thus they need to be protected by coatings and encapsulants. However, even such coatings and encapsulants can degrade over time due to weather conditions, leading to potential efficiency loss and damage of the photovoltaic devices. Nowadays, the following main properties are basically required for solar cells coating materials to ensure PV devices durability: UV, oxygen and water barrier; thermal stability, transparency, anti-reflectance, anti-soiling, flexibility, affordable cost, electrical isolation. Therefore, in order to maintain a high efficiency during their lifetime solar cells require coating materials with several functions that are usually achieved with multilayer coatings, in which one or more layer have a specific functionality, such as gas and moisture barrier, liquid barrier and self-cleaning properties. However, a higher number of layers normally increases the cost and reduces the coating transparency and flexibility. A reduction of the number of layers would lower costs and also help to maintain a high transparency and flexibility. This study was focused to the development of novel flexible and transparent materials able to integrate into a single layer both liquid and gas barrier functionalities by means of simple and effective single step process carried out at room temperature, specifically applied to standard coating bilayers for PV cells. To this aim, a Self Assembly of Monolayers of alkylsilanes and fluoroalkylsilanes was chemisorbed on the silica surface of a PV standard coating bilayers for solar cells such as PET-SiOx and ETFE-SiOx. The so obtained nanocoated films showed high hydrophobic characteristics with average contact angle higher than 130° for the coated PET-SiOx substrate, and a significant improvement of the oxygen barrier properties, reducing the Oxygen Transmission Rate to 1/3 if compared to that of the uncoated film. Accelerate Ageing tests were performed in order to verify the chemical resistance of the nanocoated materials by simulating the degradation effect of both acidic and basic rains, damp heat, UV exposure. The measured contact angle values showed that after an initial slight reduction of the contact angle value, a constant hydrophobic value was maintained for the samples coated with the SAM of fluoroalkylsilanes, even after 1000 hours of very drastic test conditions... [edited by Author]
title: A Position Allocation Approach to the Battery Electric Bus Charging Problem
Creators: name: Brown, Alexander
Publisher: name: Utah State University
Year: 2024

description: With an increasing adoption of Battery Electric Bus (BEB) fleets, developing a reliable charging schedule is vital to a successful migration from their fossil fuel counterparts. In this work, a BEB charging scheduling framework that considers fixed route schedules, multiple charger types, and battery dynamics is modeled as a Mixed Integer Linear Program (MILP). The MILP is modeled after the Berth Allocation Problem (BAP) in a modified form known as the Position Allocation Problem (PAP). The optimization coordinates BEB charging to ensure that each vehicle remains above a specified charge percentage. The model also minimizes the total number of chargers utilized and prioritizes slow charging for battery health. The model validity is demonstrated with a set of routes and is compared to a heuristic algorithm based on charge thresholds referred to as the Qin-Modified method.
The MILP approach is then further extended via a Simulated Annealing (SA) implementation. The framework maintains the same considerations and while further developing a method to minimize the peak power use (demand cost). Two mechanisms are implemented for the SA algorithm denoted as the “quick” and “heuristic” implementations, respectively. The model validity is demonstrated by utilizing a set of routes sampled form the Utah Transit Authority (UTA) and comparing the results two other models: the MILP approach and the Qin-Modified. The MILP is utilized as a baseline as it is formulated in a way that can guarantee optimality. The results presented show that the “heuristic” approach was able to generate a solution comparable to that of the MILP over a similar execution times. The SA PAP framework is further extended to incorporate non-linear battery dynamics to further increase the accuracy of the SOC model during a BEBs charging phase.
title: Determinants of bone parameters in chronic kidney disease patients on dialysis
Creators: name: Balzano, Rosario Francesco
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: Endocrine disorders
subject: Statistics
subject: FOS: Mathematics
subject: Musculoskeletal spine

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Chronic kidney disease is an important condition associated with great patient’s morbidity and repercussions on life quality. Patients with End Stage Renal Disease (ESRD) experience endocrine and metabolic alterations which in turn may affect...
title: Primary cutaneous aspergillosis presenting with multiloculated cysts in the hand
Creators: name: Cha, Yoogi
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: MR
subject: Musculoskeletal soft tissue
subject: Education
subject: Infection
subject: Cysts

description: Learning objectives Background Imaging findings OR Procedure Details Conclusion References Personal Information
description: Learning objectives: To present MR findings of a rare case of invasive aspergillosis with multiloculated cysts in the...
On the operator norm of non-commutative polynomials in deterministic matrices and iid GUE matrices
Creators: name: Collins, Benoît
name: Guionnet, Alice
name: Parraud, Félix
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: Let $X^N = (X_1^N,\dots, X^N_d)$ be a d-tuple of $N\times N$ independent GUE random matrices and $Z^{NM}$ be any family of deterministic matrices in $\mathbb{M}_N(\mathbb{C})\otimes \mathbb{M}_M(\mathbb{C})$. Let $P$ be a self-adjoint non-commutative polynomial. A seminal work of Voiculescu shows that the empirical measure of the eigenvalues of $P(X^N)$ converges towards a deterministic measure defined thanks to free probability theory. Let now $f$ be a smooth function, the main technical result of this paper is a precise bound of the difference between the expectation of $$\frac{1}{MN}\text{Tr}\left( f(P(X^N\otimes I_M,Z^{NM})) \right)$$ and its limit when $N$ goes to infinity. If $f$ is six times differentiable, we show that it is bounded by $M^2\left\Vert f\right\Vert_{\mathcal{C}^6}N^{-2}$. As a corollary we obtain a new proof of a result of Haagerup and Thorbjørnsen, later developed by Male, which gives sufficient conditions for the operator norm of a polynomial evaluated in $(X^N,Z^{NM},{Z^{NM}}^*)$ to converge almost surely towards its free limit. Restricting ourselves to polynomials in independent GUE matrices, we give concentration estimates on the largest eingenvalue of these polynomials around their free limit. A direct consequence of these inequalities is that there exists some $β>0$ such that for any $\varepsilon_1<3+β)^{-1}$ and $\varepsilon_2<1/4$, almost surely for $N$ large enough, $$-\frac{1}{N^{\varepsilon_1}}\ \leq \| P(X^N)\| - \left\Vert P(x)\right\Vert \leq\ \frac{1}{N^{\varepsilon_2}}.$$ Finally if $X^N$ and $Y^{M_N}$ are independent and $M_N = o(N^{1/3})$, then almost surely, the norm of any polynomial in $(X^N\otimes I_{M_N},I_N\otimes Y^{M_N})$ converges almost surely towards its free limit. This result is an improvement of a Theorem of Pisier, who was himself using estimates from Haagerup and Thorbjørnsen, where $M_N$ had size $o(N^{1/4})$.
Level of blood pressure above goal and clinical inertia in a Medicaid population
Creators: name: Lawrence, William
name: Viera, Anthony J.
name: Schmid, Dorothee
name: Bostrom, Susan
name: Yow, Angie
name: DuBard, C. Annette
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2010

description: Failure to adjust hypertension therapy despite elevated blood pressure (BP) levels is an important contributor to lack of BP control. One possible explanation is that small elevations above goal BP are not concerning to clinicians. BP levels farther above goal, however, should be more likely to prompt clinical action. We reviewed one year’s worth of primary care records of 3,742 North Carolina Medicaid recipients 21 years and older with hypertension (a total of 15,516 office visits) to examine variations in hypertension management stratified by level of BP above goal and the association of BP level above goal with documented anti-hypertensive medication change. Among the 53% of patients not at goal BP, 42% were within 10/5 mm Hg of goal; 11% had a BP ≥40/20 mm Hg above goal. Higher level of BP above goal was independently associated with anti-hypertensive medication change. Compared to visits at which BP was <10/5 mm Hg above goal, the adjusted odds of medication change were 7.9 (95% CI 6.2-10.2) times greater at visits when patients’ BP was ≥ 40/20 mm Hg above goal. However, even when BP was above goal at this level, treatment change occurred only 46% (95% CI 40.2-51.8) of the time.
Diurnal blood pressure pattern and development of prehypertension or hypertension in young adults: the CARDIA study
Creators: name: Zhu, Sha
name: Jacobs, David R.
name: Shimbo, Daichi
name: Viera, Anthony J.
name: Hinderliter, Alan L.
name: Person, Sharina D.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2011

description: Nondippers (people whose sleep systolic blood pressure (SBP) fails to decrease >10% from daytime SBP) have increased risk of cardiovascular disease. The prevalence of nondipping in younger adults has not been well-studied, nor has its value for predicting hypertension. We examined the prevalence of nondipping in a sub-study of the Coronary Artery Risk Development in Young Adults (CARDIA) Study. We used Cox regression to estimate the hazard ratio (HR) conferred by nondipping for incident prehypertension or hypertension (preHTN/HTN) over 15 years. Of the 264 non-hypertensive participants at baseline, 118 (45%) were nondippers. Blacks were more likely than Whites to be nondippers (52% vs 33%, p=0.004). The incidence rate of preHTN/HTN was 29.2/1000 person-years among dippers and 36.2/1000 person-years among nondippers. Compared to those in the lowest quartile of nighttime to daytime SBP, those in the highest quartile were more likely to develop preHTN/HTN (HR 1.61; p =0.06), but this relationship was attenuated after adjustment (HR 1.34; p =0.27). Our results demonstrate that nondipping is common in young, nonhypertensive adults, and is more common in Blacks than Whites. Nondipping might predate a meaningful clinically detected increase in BP in some people, but more research in larger study samples is needed.
Predicting Sequences of Traversed Nodes in Graphs using Network Models with Multiple Higher Orders
Creators: name: Gote, Christoph
name: Casiraghi, Giona
name: Schweitzer, Frank
name: Scholtes, Ingo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Information Theory (cs.IT)
subject: Social and Information Networks (cs.SI)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: We propose a novel sequence prediction method for sequential data capturing node traversals in graphs. Our method builds on a statistical modelling framework that combines multiple higher-order network models into a single multi-order model. We develop a technique to fit such multi-order models in empirical sequential data and to select the optimal maximum order. Our framework facilitates both next-element and full sequence prediction given a sequence-prefix of any length. We evaluate our model based on six empirical data sets containing sequences from website navigation as well as public transport systems. The results show that our method out-performs state-of-the-art algorithms for next-element prediction. We further demonstrate the accuracy of our method during out-of-sample sequence prediction and validate that our method can scale to data sets with millions of sequences.
description: 18 pages, 5 figures, 2 tables; changes with v2: updated broken figure and MSNBC data
title: MRI characteristics of Atypical Lipomatous Tumours
Creators: name: Aggarwal, Smeer
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: Cancer
subject: Audit and standards
subject: MR
subject: Musculoskeletal soft tissue

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Atypical lipomatous tumours (ALTs) are locally aggressive mesenchymal tumours with at least focal cellular atypia. ALTs located in the peripheries have no metastatic potential but occasionally dedifferentiate into high grade liposarcoma over...
title: Nerve entrapment syndromes at the wrist and elbow by sonography
Creators: name: Buzzegoli, Tommaso
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: Pathology
subject: Diagnostic procedure
subject: Ultrasound
subject: Neuroradiology peripheral nerve
subject: Musculoskeletal system
subject: Anatomy

description: Learning objectives Background Imaging findings OR Procedure Details Conclusion References Personal Information
description: Learning objectives: Anatomy, pathophysiology, ultrasound findings and scanning techniques of nerve compression syndromes of median, ulnar and radial nerves. Syndromes discussed are: Pronator and Kiloh-Nevin syndromes as well as carpal tunnel syndrome and palmar...
Dynamics of Actions of Automorphisms of Discrete Groups $G$ on Sub$_G$ and Applications to Lattices in Lie Groups
Creators: name: Palit, Rajdip
name: Prajapati, Manoj B.
name: Shah, Riddhi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37B05 (Primary) 22E40 (Secondary)

description: For a discrete group $G$ and the compact space Sub$_G$ of (closed) subgroups of $G$ endowed with the Chabauty topology, we study the dynamics of actions of automorphisms of $G$ on Sub$_G$ in terms of distality and expansivity. We also study the structure and properties of lattices $Γ$ in a connected Lie group. In particular, we show that the unique maximal solvable normal subgroup of $Γ$ is polycyclic and the corresponding quotient of $Γ$ is either finite or admits a cofinite subgroup which is a lattice in a connected semisimple Lie group with certain properties. We also show that Sub$^c_Γ$, the set of cyclic subgroups of $Γ$, is closed in Sub$_Γ$. We prove that an infinite discrete group $Γ$ which is either polycyclic or a lattice in a connected Lie group, does not admit any automorphism which acts expansively on Sub$^c_Γ$, while only the finite order automorphisms of $Γ$ act distally on Sub$^c_Γ$. For an automorphism $T$ of a connected Lie group $G$ and a $T$-invariant lattice $Γ$ in $G$, we compare the behaviour of the actions of $T$ on Sub$_G$ and Sub$_Γ$ in terms of distality. We put certain conditions on the structure of the Lie group $G$ under which we show that $T$ acts distally on Sub$_G$ if and only if it acts distally on Sub$_Γ$. We construct counter examples to show that this does not hold in general if the conditions on the Lie group are relaxed.
description: 36 pages
title: Under-reporting of osteoporotic vertebral body fractures on body CT – A missed opportunity ?
Creators: name: Aggarwal, Smeer
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: Osteoporosis
subject: Audit and standards
subject: CT
subject: Bones

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Osteoporotic vertebral fractures are often left unreported during routine radiological examination worldwide. After an initial osteoporotic vertebral body fracture the subsequent risk for another fracture during the 1st year is 25%. Early...
Stock data analysis using sympbolic data analysis
Creators: name: Caillou, Philippe
name: Diday, Edwin
Publisher: name: arXiv
Year: 2023
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper we present a model of the stock exchange domain using symbolic dataanalysis and we use the SODAS software to analyze this domain. After a short presentationof the software, we present the analysis in three steps: choice of the symbolic objects, theirdefinition and their analysis with SODAS. We give details for each of these steps and thereimportance is underlined. Two examples of results are described to show the analysis interestand pertinence. The conclusion describes perspectives after the improvement of SODAS forits application in the stock exchange domain.
description: in French language
Gravitational waves as a probe of dark matter mini-spikes
Creators: name: Eda, Kazunari
name: Itoh, Yousuke
name: Kuroyanagi, Sachiko
name: Silk, Joseph
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Recent studies show that an intermediate mass black hole (IMBH) may develop a dark matter (DM) mini-halo according to some BH formation scenarios. We consider a binary system composed of an IMBH surrounded by a DM mini-spike and a stellar mass object orbiting around the IMBH. The binary evolves due to gravitational pull and dynamical friction from the DM mini-spike and back-reaction from its gravitational wave (GW) radiation which can be detected by future space-borne GW experiments such as eLISA/NGO. We consider a single power-law model for the DM mini-spike which is assumed to consist of non-annihilating DM particles and demonstrate that an eLISA/NGO detection of GW from such a binary enables us to measure the DM mini-spike parameters very accurately. For instance, in our reference case originally advocated by Zhao and Silk (2005) and Bertone et al. (2005), we could determine the power-law index $α$ of the DM mini-spike radial profile with a 1 $σ$ relative error of $\pm 5\times 10^{-6}$ for a GW signal with signal-to-noise-ratio 10 and assuming a 5 year observation with eLISA. We also investigate how accurately the DM parameters can be determined for various DM parameters and the masses of the IMBH-stellar mass object binary surrounded by a DM mini-spike. We find that we can determine the power-law index $α$ at 10 % level even for a slightly flatter radial distribution of $α\sim 1.7$.
description: 19 pages, 8 figures
A multicenter study of neurocognition in children with hypertension: Methods, challenges, and solutions
Creators: name: Adams, Heather R.
name: Szilagyi, Peter G.
name: Batisky, Donald L.
name: Lande, Marc B.
name: Hooper, Stephen R.
name: Kupferman, Juan C.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Hypertensive adults demonstrate decreased performance on neurocognitive testing compared with that of normotensive controls. There is now emerging, preliminary evidence that children with hypertension also manifest neurocognitive differences when compared to normotensive controls, findings postulated to potentially represent early signs of hypertensive target organ damage to the brain. However, reports in children to date have been limited to database and single-center studies. We have established an ongoing, prospective, multicenter study of neurocognition in children with primary hypertension. This article outlines the study methods, with particular attention to the unique challenges in this area of clinical research. We highlight aspects of the study design that are specifically designed as solutions to these challenges.
Reproducibility of blood pressure dipping: Relation to day-to-day variability in sleep quality
Creators: name: Wohlgemuth, William K.
name: Blumenthal, James A.
name: Hinderliter, Alan L.
name: Koch, Gary
name: Hussey, Michael A.
name: Routledge, Faye S.
name: Sherwood, Andrew
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2013

description: Previous studies of the reproducibility of blood pressure (BP) dipping have yielded inconsistent results. Few have examined factors that may influence dayto-day differences in dipping.
title: Quadratus femoris muscle atrophy in ischio-femoral impingement-an often overlooked cause of unexplained and refractory hip pain
Creators: name: Ho, Minhui
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: Quality assurance
subject: Outcomes
subject: Diagnostic procedure
subject: MR
subject: Musculoskeletal system
subject: Musculoskeletal soft tissue

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Ischio-Femoral Impingment (IFI), a lesser known cause of hip pain, can often be overlooked in patients who present with refractory hip pain. This group of patients often present with the following symptoms: · Non-specific Buttock / Groin Pain ·...
The fractional Bessel equation in Hölder spaces
Creators: name: Betancor, J. J.
name: Castro, A. J.
name: Stinga, P. R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Analysis of PDEs (math.AP)
subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: Motivated by the Poisson equation for the fractional Laplacian on the whole space with radial right hand side, we study global Hölder and Schauder estimates for a fractional Bessel equation. Our methods stand on the so-called semigroup language. Indeed, by using the solution to the Bessel heat equation we derive pointwise formulas for the fractional operators. Appropriate Hölder spaces, which can be seen as Campanato-type spaces, are characterized through Bessel harmonic extensions and fractional Carleson measures. From here the regularity estimates for the fractional Bessel equations follow. In particular, we obtain regularity estimates for radial solutions to the fractional Laplacian.
description: 36 pages. To appear in Journal of Approximation Theory
Rates, amounts, and determinants of ambulatory blood pressure monitoring claim reimbursements among Medicare beneficiaries
Creators: name: Muntner, Paul
name: Kilgore, Meredith
name: Shimbo, Daichi
name: Huang, Lei
name: Viera, Anthony J.
name: Kent, Shia T.
name: Diaz, Keith M.
name: Oparil, Suzanne
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Ambulatory blood pressure monitoring (ABPM) can be used to identify white coat hypertension and guide hypertensive treatment. We determined the percentage of ABPM claims submitted between 2007–2010 that were reimbursed. Among 1,970 Medicare beneficiaries with submitted claims, ABPM was reimbursed for 93.8% of claims that had an ICD-9 diagnosis code of 796.2 (“elevated blood pressure reading without diagnosis of hypertension”) versus 28.5% of claims without this code. Among claims without an ICD-9 diagnosis code of 796.2 listed, those for the component (e.g., recording, scanning analysis, physician review, reporting) versus full ABPM procedures and performed by institutional versus non-institutional providers were each more than two times as likely to be successfully reimbursed. Of the claims reimbursed, the median payment was $52.01 (25–75th percentiles: $32.95–$64.98). In conclusion, educating providers on the ABPM claims reimbursement process and evaluation of Medicare reimbursement may increase the appropriate use of ABPM and improve patient care.
title: Under-reporting of inflammation of the posterior interspinous ligament-thoracolumbar fascia complex in patients presenting with coccygeal pain
Creators: name: Ho, Minhui
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: Outcomes
subject: Diagnostic procedure
subject: MR
subject: Musculoskeletal spine
subject: Musculoskeletal soft tissue

description: Purpose Methods and Materials Results Conclusion References Personal Information
description: Purpose: Our study aims to highlight the presence of inflamation of the Posterior Interspinous Ligament-Thoracolumbar Fascia Complex (PISL-TLF complex) in patients who present with sacro-coccygeal pain on MRI studies. Sacro-coccygealpain is not an uncommon...
The use of ambulatory blood pressure monitoring among Medicare beneficiaries in 2007–2010
Creators: name: Oparil, Suzanne
name: Kilgore, Meredith
name: Huang, Lei
name: Muntner, Paul
name: Shimbo, Daichi
name: Kent, Shia T.
name: Viera, Anthony J.
name: Diaz, Keith M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: The US Centers for Medicaid and Medicare Services reimburses ambulatory blood pressure monitoring (ABPM) for suspected white coat hypertension. We estimated ABPM use between 2007 and 2010 among a 5% random sample of Medicare beneficiaries (≥ 65 years). In 2007, 2008, 2009 and 2010, the percentage of beneficiaries with ABPM claims was 0.10%, 0.11%, 0.10%, and 0.09% respectively. A prior diagnosis of hypertension was more common among those with versus without an ABPM claim (77.7% versus 47.0%). Among hypertensive beneficiaries, 95.2% of those with an ABPM claim were taking antihypertensive medication. Age 75-84 versus 65-74 years, having coronary heart disease, chronic kidney disease, multiple prior hypertension diagnoses, and having filled multiple classes of antihypertensive medication were associated with an increased odds for an ABPM claim among hypertensive beneficiaries. ABPM use was very low among Medicare beneficiaries and was not primarily used for diagnosing white coat hypertension in untreated individuals.
Experimental method of detecting relic neutrino by atomic de-excitation
Creators: name: Yoshimura, M.
name: Sasao, N.
name: Tanaka, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The cosmic background neutrino of temperature 1.9 K affects rates of radiative emission of neutrino pair (RENP) from metastable excited atoms, since its presence blocks the pair emission by the Pauli exclusion principle. We quantitatively investigate how the Pauli blocking distorts the photon energy spectrum and calculate its sensitivity to cosmic parameters such as the neutrino temperature and its chemical potential. Important quantities for high sensitivities to these parameter measurement are found to be the level spacing of atomic de-excitation and the unknown mass value of lightest neutrino, in particular their mutual relation.
description: 7 pages, 4 figures
The Hardy-Littlewood property and maximal operators associated with the inverse Gauss measure
Creators: name: Betancor, Jorge J.
name: Castro, Alejandro J.
name: De León-Contreras, Marta
Publisher: name: arXiv
Year: 2020
Subjects: subject: Functional Analysis (math.FA)
subject: Classical Analysis and ODEs (math.CA)
subject: FOS: Mathematics
subject: 42B25, 46B42

description: In this paper we characterize the Banach lattices with the Hardy-Littlewood property by using maximal operators defined by semigroups of operators associated with the inverse Gauss measure.
description: 37 pages
title: Suprascapular nerve block in chronic shoulder pain and dysfunction
Creators: name: Prasad, Radhika
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: Education and training
subject: Technical aspects
subject: Ultrasound
subject: Musculoskeletal system
subject: Musculoskeletal joint
subject: Interventional non-vascular

description: Learning objectives Background Imaging findings OR Procedure Details Conclusion References Personal Information
description: Learning objectives: 1. Familiarise with the anatomy, indications and technique of ultrasound guided suprascapular nerve block (SSNB). 2. Have an understanding of the resultsof ultrasound guided suprascapular nerve block (SSNB) performed by MSK radiologists for patients...
Notes on "Notes on the Synthesis of Form": Dawning Insights in Early Christopher Alexander
Creators: name: Gabriel, Richard P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Software Engineering (cs.SE)
subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: This essay is a picaresque -- a first-person narrative relating the adventures of a rogue (me) sifting through the mind of Christopher Alexander as he left behind formalized design thinking in favor of a more intuitive, almost spiritual process. The work of Christopher Alexander is familiar to many computer scientists: for some it's patterns, for some it's the mystical **quality without a name** and "Nature of Order"; for many more it's "Notes on the Synthesis of Form" -- Alexander's formalized design method and foreshadowing ideas about cohesion and coupling in software. Since the publication of "Design Patterns" by Gamma et al. in 1994, there have been hundreds of books published about design / software patterns, thousands of published pattern languages, and tens of thousands of published patterns. "Notes," published in 1964, was quickly followed by one of Alexander's most important essays, "A City is Not a Tree," in which he repudiates the formal method described in "Notes," and his Preface to the paperback edition of "Notes" in 1971 repeats the repudiation. For many close readers of Alexander, this discontinuity is startling and unexplained. When I finally read "Notes" in 2015, I was struck by the detailed worked example, along with a peculiar mathematical treatment of the method, and a hint that the modularization presented in the example was reckoned by a computer program he had written -- all in the late 1950s and early 1960s. Because of my fascination with metaheuristic optimization, I couldn't resist trying to replicate his experimental results. Computers and their programs relish dwelling on flaws in your thinking -- Alexander was not exempt. By engaging in hermeneutics and software archeology, I was able to uncover / discover the trajectory of his thinking as he encountered failures and setbacks with his computer programs. My attempted replication also failed, and that led me to try to unearth the five different programs he wrote, understand them, and figure out how one led to the next. They are not described in published papers, only in internal reports. My search for these reports led to their being made available on the Net. What I found in my voyage were the early parts of a chain of thought that started with cybernetics, mathematics, and a plain-spoken computer; passed through "A City is Not a Tree"; paused to "make God appear in the middle of a field"; and ended with this fundamental design goal: **I try to make the volume of the building so that it carries in it all feeling. To reach this feeling, I try to make the building so that it carries my eternal sadness. It comes, as nearly as I can in a building, to the point of tears.**
Mouse Models of Diabetic Nephropathy
Creators: name: Coffman, T. M.
name: Brosius, F. C.
name: Sharma, K.
name: Takahashi, N.
name: Susztak, K.
name: Takahashi, T.
name: Gurley, S. B.
name: Leiter, E. H.
name: McIndoe, R. A.
name: Bottinger, E. P.
name: Kakoki, M.
name: Kretzler, M.
name: Smithies, O.
name: Harris, R. C.
name: Alpers, C. E.
name: Breyer, M. D.
name: Levi, M.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2009

description: Diabetic nephropathy is the major cause of end-stage renal disease worldwide. Despite its prevalence, identification of specific factors that cause or predict diabetic nephropathy has been delayed in part by lack of reliable animal models that mimic the disease in humans. The Animal Models of Diabetic Complications Consortium (AMDCC) was created 8 years ago by the National Institutes of Health to develop and characterize models of diabetic nephropathy and other complications. This interim report details the progress made toward that goal, specifically in the development and testing of murine models. Updates are provided on validation criteria for early and advanced diabetic nephropathy, phenotyping methods, the effect of background strain on nephropathy, current best models of diabetic nephropathy, negative models and views of future directions. AMDCC investigators and other investigators in the field have yet to validate a complete murine model of human diabetic kidney disease. Nonetheless, the critical analysis of existing murine models substantially enhances our understanding of this disease process.
The tensor Harish-Chandra-Itzykson-Zuber integral I: Weingarten calculus and a generalization of monotone Hurwitz numbers
Creators: name: Collins, Benoît
name: Gurau, Razvan
name: Lionni, Luca
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We study a generalization of the Harish-Chandra - Itzykson - Zuber integral to tensors and its expansion over trace-invariants of the two external tensors. This gives rise to natural generalizations of monotone double Hurwitz numbers, which count certain families of constellations. We find an expression of these numbers in terms of monotone simple Hurwitz numbers, thereby also providing expressions for monotone double Hurwitz numbers of arbitrary genus in terms of the single ones. We give an interpretation of the different combinatorial quantities at play in terms of enumeration of nodal surfaces. In particular, our generalization of Hurwitz numbers is shown to enumerate certain isomorphism classes of branched coverings of a bouquet of $D$ 2-spheres that touch at one common non-branch node.
description: 43 pages, 7 figures
Power Calculations for General Linear Multivariate Models Including Repeated Measures Applications
Creators: name: Lavange, Lisa M.
name: Muller, Keith E.
name: Ramey, Craig T.
name: Ramey, Sharon Landesman
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 1992

description: Recently developed methods for power analysis expand the options available for study design. We demonstrate how easily the methods can be applied by (1) reviewing their formulation and (2) describing their application in the preparation of a particular grant proposal. The focus is a complex but ubiquitous setting: repeated measures in a longitudinal study. Describing the development of the research proposal allows demonstrating the steps needed to conduct an effective power analysis. Discussion of the example also highlights issues that typically must be considered in designing a study. First, we discuss the motivation for using detailed power calculations, focusing on multivariate methods in particular. Second, we survey available methods for the general linear multivariate model (GLMM) with Gaussian errors and recommend those based on F approximations. The treatment includes coverage of the multivariate and univariate approaches to repeated measures, MANOVA, ANOVA, multivariate regression, and univariate regression. Third, we describe the design of the power analysis for the example, a longitudinal study of a child’s intellectual performance as a function of mother’s estimated verbal intelligence. Fourth, we present the results of the power calculations. Fifth, we evaluate the tradeoffs in using reduced designs and tests to simplify power calculations. Finally, we discuss the benefits and costs of power analysis in the practice of statistics. We make three recommendations:
Nonaxisymmetric Instabilities in Self-Gravitating Disks. II Linear and Quasi-Linear Analyses
Creators: name: Hadley, Kathryn Z.
name: Fernandez, Paul
name: Imamura, James N.
name: Keever, Erik
name: Tumblin, Rebecka
name: Dumas, William
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We studied global nonaxisymmetric hydrodynamic instabilities in an extensive collection of hot, self-gravitating polytropic disk systems, systems that covered a wide expanse of the parameter space relevant to protostellar and protoplanetary systems. We examined equilibrium disk models varying three parameters: the ratio of the inner to outer equatorial radii, the ratio of star mass to disk mass, and the rotation law exponent $q$. We took the polytropic index $n$ = 1.5 and examined the exponents $q =$ 1.5 and 2, and the transitional one $q$ = 1.75. For each of these sets of parameters, we examined models with inner to outer radius ratios from 0.1 to 0.75, and star mass to disk mass ratios from 0 to 10$^3$. We numerically calculated the growth rates and oscillation frequencies of low-order nonaxisymmetric disk modes, modes with azimuthal dependence $\propto$ e$^{imϕ}$. Low-$m$ modes are found to dominate with the character and strength of instability strongly dependent on disk self-gravity. Representatives of each mode type are examined in detail, and torques and mass transport rates are calculated.
Hipocampos, Los Caballitos de Mar
Creators: name: Martínez, Gemma
name: Mascaró, Maite
name: Mendoza, Tonali
Publisher: name: Zenodo
Year: 2021
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: Aquaculture
subject: Animal Behavior
subject: Marine Biology
subject: Caribbean
subject: Hippocampus
subject: caballito de mar
subject: ornamentales marinos
subject: acuicultura
subject: Seahorses
subject: Especies amenazadas
subject: Endangered Species

description: This Infographic is a product of BDMY (https://www.bdmy.org.mx) project, which was produced in collaboration with the Universidad Nacional Autónoma de México and A poco no. Available languages: Spanish, English, DOI 10.5281/zenodo.4549896 Portuguese, DOI 10.5281/zenodo.4549912

 The information in the infographic was reviewed and validated by a group of specialists in the taxon.
Lessons learned from the NEAR experiment and prospects for the upcoming mid-IR HCI instruments
Creators: name: Pathak, Prashant
name: Kasper, Markus
name: Absil, Olivier
name: de Xivry, Gilles Orban
name: Käufl, Ulli
name: Jakob, Gerd
name: Siebenmorgen, Ralf
name: Leveratto, Serban
name: Pantin, Eric
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The mid-infrared (IR) regime is well suited to directly detect the thermal signatures of exoplanets in our solar neighborhood. The NEAR experiment: demonstration of high-contrast imaging (HCI) capability at ten microns, can reach sub-mJy detection sensitivity in a few hours of observation time, which is sufficient to detect a few Jupiter mass planets in nearby systems. One of the big limitations for HCI in the mid-IR is thermal sky-background. In this work, we show that precipitate water vapor (PWV) is the principal contributor to thermal sky background and science PSF quality. In the presence of high PWV, the HCI performance is significantly degraded in the background limited regime.
description: 8 pages, 4 figures, conference proceedings (SPIE Astronomical telescopes and instrumentation 2022)
title: Mystifying Muscles: A Pictorial Review With Radiologic Pathologic Correlation
Creators: name: Atinga, Angela
Publisher: name: European Society of Muscoskeletal Radiology
Year: 2018
Subjects: subject: Inflammation
subject: Localisation
subject: Imaging sequences
subject: MR
subject: Musculoskeletal system
subject: Musculoskeletal soft tissue

description: Learning objectives Background Imaging findings OR Procedure Details Conclusion References Personal Information
description: Learning objectives: Review the pathophysiology of muscle disorders Highlight the role of imaging in the diagnosis of muscle disorders. Present a pictorial radiologic-pathologic correlation ofsample cases from our...
Estimating Cure Rates From Survival Data: An Alternative to Two-Component Mixture Models
Creators: name: Yakovlev, A. Y
name: Ibrahim, J. G
name: Tsodikov, A. D
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2003

description: This article considers the utility of the bounded cumulative hazard model in cure rate estimation, which is an appealing alternative to the widely used two-component mixture model. This approach has the following distinct advantages: (1) It allows for a natural way to extend the proportional hazards regression model, leading to a wide class of extended hazard regression models. (2) In some settings the model can be interpreted in terms of biologically meaningful parameters. (3) The model structure is particularly suitable for semiparametric and Bayesian methods of statistical inference. Notwithstanding the fact that the model has been around for less than a decade, a large body of theoretical results and applications has been reported to date. This review article is intended to give a big picture of these modeling techniques and associated statistical problems. These issues are discussed in the context of survival data in cancer.