cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The development of single-cell microfluidic technologies for the analysis of microRNA expression
Creators: name: VanInsberghe, Michael
Publisher: name: University of British Columbia
Year: 2019

description: New technologies for single-cell RNA expression profiling have transformed our understanding of cell biology. Despite several variations, the vast majority of available methods are applicable only to messenger RNA expression measurements, leaving microRNAs and other classes of small RNAs largely unexplored. In this dissertation I describe the creation and application of technology that allows for the efficient and precise analysis of microRNA expression in large numbers of single cells. First, the foundational components necessary for microfluidic integration of single-cell RT-qPCR analysis were developed. The resulting device executes and parallelizes all steps of cell capture, cell lysis, reverse transcription, and quantitative PCR on up to 300 cells per run. In comparison to standard benchtop assays, nanolitre-volume processing was found to increase measurement performance on samples with limited template. The core functionality established in this part of the work provides a foundation for further microfluidic single-cell assays. The capabilities of this platform were next expanded to enable highly multiplexed RT-qPCR analysis. By incorporating sophisticated microfluidic fabrication techniques with an extended workflow that included a pre-amplification step, the number of assays per cell was increased from one or two to up to forty, while maintaining the same benefits to measurement performance that were previously observed. Finally, small-volume analysis and carefully optimized molecular biology were combined to develop a method to generate high-quality single-cell microRNA sequencing libraries. This method was then applied to provide a comprehensive look at microRNA expression dynamics across the human hematopoietic cell hierarchy. The results indicated that the population structure derived from miRNA expression profiles supported a model of continuous, linear hematopoietic stem cell differentiation, in contrast to the prevailing model of stepwise, branched lineage commitment. An expanded set of miRNA markers that are highly expressed in HSCs, decrease gradually during differentiation, and are absent in mature cells were also identified. Finally, an analysis of the relative expression of microRNA isoforms was performed, showing that they are a dynamic feature that varies between different microRNAs and cell types. The capabilities conferred by this suite of microfluidic devices will enable the continued, routine analysis of microRNA expression in single cells.
Energy density functional on a microscopic basis
Creators: name: Baldo, M
name: Robledo, LM
name: Schuck, P.
name: Viñas, X.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In recent years impressive progress has been made in the development of highly accurate energy density functionals, which allow to treat medium-heavy nuclei. In this approach one tries to describe not only the ground state but also the first relevant excited states. In general, higher accuracy requires a larger set of parameters, which must be carefully chosen to avoid redundancy. Following this line of development, it is unavoidable that the connection of the functional with the bare nucleon-nucleon interaction becomes more and more elusive. In principle, the construction of a density functional from a density matrix expansion based on the effective nucleon-nucleon interaction is possible, and indeed the approach has been followed by few authors. However, to what extent a density functional based on such a microscopic approach can reach the accuracy of the fully phenomenological ones remains an open question. A related question is to establish which part of a functional can be actually derived by a microscopic approach and which part, on the contrary, must be left as purely phenomenological. In this paper we discuss the main problems that are encountered when the microscopic approach is followed. To this purpose we will use the method we have recently introduced to illustrate the different aspects of these problems. In particular we will discuss the possible connection of the density functional with the nuclear matter Equation of State and the distinct features of finite size effects proper of nuclei.
description: 20 pages, 6 figures,Contribution to J. Phys G, Special Issue, Focus Section: Open Problems in Nuclear Structure
Update on the radiation levels across CERN's complex during 2021
Creators: name: Biłko, Kacper
Publisher: name: Zenodo
Year: 2021

description: Update on the 2021 radiation levels in the CERN accelerator complex presented at the 49th MCWG meeting: https://indico.cern.ch/event/1097265/.
 
Considered period: until 15/11/2021 (end of 2021 operation).
Occurrence of periodic Lame functions at bifurcations in chaotic Hamiltonian systems
Creators: name: Brack, Matthias
name: Mehta, Mitaxi
name: Tanaka, Kaori
Publisher: name: Universität Regensburg
Year: 2001
Subjects: subject: 530 Physik

description: We investigate cascades of isochronous pitchfork bifurcations of straight-line librating orbits in some two-dimensional Hamiltonian systems with mixed phase space. We show that the new bifurcated orbits, which are responsible for the onset of chaos, are given analytically by the periodic solutions of the Lame equation as classified in 1940 by Ince. In Hamiltonians with C_2v symmetry, they occur alternatingly as Lame functions of period 2K and 4K, respectively, where 4K is the period of the Jacobi elliptic function appearing in the Lame equation. We also show that the two pairs of orbits created at period-doubling bifurcations of touch-and-go type are given by two different linear combinations of algebraic Lame functions with period 8K.
THE IMPORTANCE OF PHYSICAL ACTIVITY MINUTES AT THE LESSONS
Creators: name: Tuychiyev Adxamjon Tuxtaboyevich Senior English Lecturer, Impuls Medical Institute Researcher, Namangan State University
Publisher: name: Zenodo
Year: 2023

description: The article deals with the efficient forming of the physical training and sports lessons, raising of the interest to physical training lessons in students in education institutions, forming of the habits, knowledge, ability to different kinds of sport and displaying interest to different sports competitions in this area.
Keywords: sports activities, communication skills, personal development, prosocial skills.
Vortex dynamics and irreversibility line in optimally doped SmFeAsO$_{0.8}$F$_{0.2}$ from ac susceptibility and magnetization measurements
Creators: name: Prando, G.
name: Carretta, P.
name: De Renzi, R.
name: Sanna, S.
name: Palenzona, A.
name: Putti, M.
name: Tropeano, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Ac susceptibility and static magnetization measurements were performed in the optimally doped SmFeAsO$_{0.8}$F$_{0.2}$ superconductor. The field - temperature phase diagram of the superconducting state was drawn and, in particular, the features of the flux line lattice derived. The dependence of the intra-grain depinning energy on the magnetic field intensity was derived in the thermally-activated flux creep framework, enlightening a typical 1/H dependence in the high-field regime. The intra-grain critical current density was extrapolated in the zero temperature and zero magnetic field limit, showing a remarkably high value $J_{c0}(0) \sim 2 \cdot 10^{7}$ A/cm$^{2}$, which demonstrates that this material is rather interesting for the potential future technological applications.
description: 6 pages, 6 figures
Вопросы устойчивого развития общества,Выпуск 3 2023
Creators: name: ООО "Институт развития образования и консалтинга"
Publisher: name: ООО "Институт развития образования и консалтинга"
Year: 2023

description: Вопросы устойчивого развития общества,Выпуск 3 2023
Automated analysis of vascular structures of skin lesions : segmentation, pattern recognition and computer-aided diagnosis
Creators: name: Kharazmi, Pegah
Publisher: name: University of British Columbia
Year: 2019

description: Skin disorders are among the most common healthcare referrals in Canada, affecting a large population and imposing high healthcare costs. Early detection plays an essential role in efficient management and better outcome. However, restricted access to dermatologists and lack of education to other healthcare professionals pose a major challenge for early detection. Computer-aided systems have great potential as viable tools to identify early skin abnormalities. The initial clinical diagnosis phase of most skin disorders involves visual inspection of the lesion for specific features, associated with certain abnormalities. One of the main cutaneous features are vascular structures, which are significantly involved in pathogenesis, diagnosis, and treatment outcome of skin abnormalities. The presence and morphology of cutaneous vessels are suggestive clues for specific abnormalities. However, there has been no systematic approach for comprehensive analysis of skin vasculature. In this thesis, we propose a three-level framework to systematically detect, quantify and analyze the characteristics of superficial cutaneous blood vessels. First, we investigate the vessels at pixel-level. We propose novel techniques for detection (absence/presence) and segmentation of vascular structures in pigmented and non-pigmented lesions and evaluate the performance quantitatively. We develop a fully automatic vessel segmentation framework based on decomposing the skin into its component chromophores and accounting for shape. Furthermore, we design a deep learning framework based on stacked sparse auto-encoders for detection and localization of skin vasculature. Compared to previous studies, we achieve higher detection performance, while preserving clinical feature interpretability. Next, we analyze the vessels at lesion-level. We propose a novel set of architectural, geometrical and topological features to differentiate vascular morphologies. The defined feature set can effectively differentiate four major classes of vascular patterns. Finally, we investigate the vessels at disease-level. We analyze the relationship between vascular characteristics and disease diagnosis. We design and deploy novel features to evaluate total blood content and vascular characteristics of the lesion to differentiate cancerous lesions from benign ones. We also build a system upon integrating patient’s clinical information and lesion’s visual characteristics using deep feature learning, which achieves superior cancer classification performance compared to current techniques without the need for handcrafted high-level features.
Downregulation of IRAIN long non-coding RNA predicts unfavourable clinical outcome in acute myeloid leukaemia patients
Creators: name: Hussein, Mohamed A. R.
name: Ahmed, Amr E.
name: ElNahass, Yasser
name: El-Dahshan, Dina
name: Ali, Mohamed A. M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Hematology

description: Although it has been shown that the long non-coding RNA (lncRNA) insulin-like growth factor type 1 receptor (IGF1R) antisense imprinted non-protein coding RNA (IRAIN) is downregulated in leukaemia cell lines, its usefulness as a prognostic marker in acute myeloid leukaemia (AML) has not yet been thoroughly investigated. Here, we sought to determine whether the expression of IRAIN is associated with clinical outcome of AML patients. Using quantitative real-time polymerase chain reaction (qRT-PCR), IRAIN expression levels were assessed in peripheral blood leukocyte samples from 150 patients with AML and 50 healthy controls. Analysis was done on the relationship between IRAIN expression and clinical outcomes in AML patients. When compared to healthy controls, IRAIN expression was markedly reduced in AML patients (P = 0.019). IRAIN expression could distinguish French-American-British (FAB) subtypes of AML (P = 0.024). Low IRAIN expression status was associated with shorter event-free survival (EFS) in the non-t(15;17) cytogenetically abnormal AML subset (P = 0.004). IRAIN downregulation was identified as an independent adverse prognostic marker for complete remission (CR) not only in the in the non-t(15;17) cytogenetically abnormal AML subset (P = 0.006) but also in the AML-M4/M5 subgroup (P = 0.033). Aberrantly low IRAIN expression is closely associated with lower CR rates in AML patients, particularly in non-t(15;17) cytogenetically abnormal AML and M4/M5 AML, suggesting that the determination of IRAIN expression level at diagnosis provides valuable prognostic information, serves as a promising biomarker for evaluating treatment response, and helps predicting clinical outcome of AML patients.
Finite temperature quantum statistics of H$_3^+$ molecular ion
Creators: name: Kylänpää, Ilkka
name: Rantala, Tapio T.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Full quantum statistical $NVT$ simulation of the five-particle system H$_3^+$ has been carried out using the path integral Monte Carlo method. Structure and energetics is evaluated as a function of temperature up to the thermal dissociation limit. The weakly density dependent dissociation temperature is found to be around $4000$ K. Contributions from the quantum dynamics and thermal motion are sorted out by comparing differences between simulations with quantum and classical nuclei. The essential role of the quantum description of the protons is established.
description: submitted to the Journal of Chemical Physics
Natural charge spatial separation and quantum confinement of ZnO/GaN core/shell nanowires
Creators: name: Wang, Zhenhai
name: Fan, Yingcai
name: Zhao, Mingwen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We performed density-functional calculations to investigate the electronic structure of ZnO/GaN core/shell heterostructured nanowires (NWs) orientating along <0001> direction. The build-in electric filed arising from the charge redistribution at the {1-100} interfaces and the band offsets were revealed. ZnO-core/GaN-shell NWs rather than GaN-core/ZnO-shell ones were predicted to exhibit natural charge spatial separation behaviors, which are understandable in terms of an effective mass model. The effects of quantum confinement on the band gaps and band offsets were also discussed.
description: 3 pages, 3 figures
Surface bubble nucleation phase space
Creators: name: Seddon, James R. T.
name: Kooij, E. Stefan
name: Poelsema, Bene
name: Zandvliet, Harold J. W.
name: Lohse, Detlef
Publisher: name: arXiv
Year: 2010
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Recent research has revealed several different techniques for nanoscopic gas nucleation on submerged surfaces, with findings seemingly in contradiction with each other. In response to this, we have systematically investigated the occurrence of surface nanobubbles on a hydrophobised silicon substrate for various different liquid temperatures and gas concentrations, which we controlled independently. We found that nanobubbles occupy a distinct region of this phase space, occurring for gas concentrations of approximately 100-110%. Below the nanobubble phase we did not detect any gaseous formations on the substrate, whereas micropancakes (micron wide, nanometer high gaseous domains) were found at higher temperatures and gas concentrations. We moreover find that supersaturation of dissolved gases is not a requirement for nucleation of bubbles.
description: 4 pages, 4 figures
A Monte Carlo Approach for Studying Microphases Applied to the Axial Next-Nearest-Neighbor Ising and the Ising-Coulomb Models
Creators: name: Zhang, Kai
name: Charbonneau, Patrick
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The equilibrium phase behavior of microphase-forming systems is notoriously difficult to obtain because of the extended metastability of their modulated phases. In this paper we present a systematic simulation methodology for studying layered microphases and apply the approach to two prototypical lattice-based systems: the three-dimensional axial next-nearest-neighbor Ising (ANNNI) and Ising-Coulomb (IC) models. The method involves thermodynamically integrating along a reversible path established between a reference system of free spins under an ordering field and the system of interest. The resulting free energy calculations unambiguously locate the phase boundaries. The simple phases are not observed to play a particularly significant role in the devil's flowers. With the help of generalized order parameters, the paramagnetic-modulated critical transition of the ANNNI model is also studied. We confirm the XY universality of the paramagnetic-modulated transition and its isotropic nature. Interfacial roughening is found to play at most a small role in the ANNNI layered regime.
description: 15 pages, 11 figures, 2 tables
GenomicSuperSignaturePaper
Creators: name: Oh, Sehyun
name: Waldron, Levi
name: Davis, Sean
Publisher: name: figshare
Year: 2022
Subjects: subject: 60102 Bioinformatics
subject: FOS: Computer and information sciences

description: Usecases and benchmarking examples of GenomicSuperSignature Bioconductor Package
Please checkout below resources for more information.Preprint: https://www.biorxiv.org/content/10.1101/2021.05.26.445900v1 Package: https://shbrief.github.io/GenomicSuperSignature/ Examples: https://shbrief.github.io/GenomicSuperSignaturePaper/
If you use NARES or SLE-WB data, please cite this:Taroni, J. N. et al. MultiPLIER: A Transfer Learning Framework for Transcriptomics Reveals Systemic Features of Rare Disease. Cell Syst 8, 380–394.e4 (2019).

If you use CRC data, please cite this:Ma, S. et al. Continuity of transcriptomes among colorectal cancer subtypes based on meta-analysis. Genome Biol. 19, 142 (2018).
Constants of Motion for Constrained Hamiltonian Systems: A Particle around a Charged Rotating Black Hole
Creators: name: Igata, Takahisa
name: Koike, Tatsuhiko
name: Ishihara, Hideki
Publisher: name: arXiv
Year: 2010
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We discuss constants of motion of a particle under an external field in a curved spacetime, taking into account the Hamiltonian constraint which arises from reparametrization invariance of the particle orbit. As the necessary and sufficient condition for the existence of a constant of motion, we obtain a set of equations with a hierarchical structure, which is understood as a generalization of the Killing tensor equation. It is also a generalization of the conventional argument in that it includes the case when the conservation condition holds only on the constraint surface in the phase space. In that case, it is shown that the constant of motion is associated with a conformal Killing tensor. We apply the hierarchical equations and find constants of motion in the case of a charged particle in an electro-magnetic field in black hole spacetimes. We also demonstrate that gravitational and electro-magnetic fields exist in which a charged particle has a constant of motion associated with a conformal Killing tensor.
description: 20 pages
Level density of the Hénon-Heiles system above the critical barrier energy
Creators: name: Brack, Matthias
name: Kaidel, Jörg
name: Winkler, Peter
name: Fedotkin, Sergey
Publisher: name: Universität Regensburg
Year: 2006
Subjects: subject: 530 Physik

description: We discuss the coarse-grained level density of the Hénon-Heiles system above the barrier energy, where the system is nearly chaotic. We use periodic orbit theory to approximate its oscillating part semiclassically via Gutzwiller's semiclassical trace formula (extended by uniform approximations for the contributions of bifurcating orbits). Including only a few stable and unstable orbits, we reproduce the quantum-mechanical density of states very accurately. We also present a perturbative calculation of the stabilities of two infinite series of orbits (R$_n$ and L$_m$), emanating from the shortest librating straight-line orbit (A) in a bifurcation cascade just below the barrier, which at the barrier have two common asymptotic Lyapunov exponents $\chi_{\rm R}$ and $\chi_{\rm L}$.
An inequality for means with applications
Creators: name: Schlage-Puchta, Jan-Christoph
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 26D15

description: We show that an almost trivial inequality for the first and second mean of a random variable can be used to give non-trivial improvements on deep results. As applications we improve on results on lower bounds for the Riemann zeta-function on the critical line, the determinant of a skew-symmetric matrix with entries $\pm 1$, and on the maximal order of an irreducible character of the symmetric group.
MycoKey Project -36 Months Technical Report
Creators: name: Cito, Nunzia
Publisher: name: Zenodo
Year: 2019
Subjects: Micotoxyns; H2020

description: MycoKey is playing a huge role in the context of solutions to tackle biological contamination of maize, wheat and barley, food and feed chain, by applying an integrated approach to reduce the risks associated to toxigenic fungi and related mycotoxins, specifically aflatoxins, deoxynivalenol, zearalenone, ochratoxin A, fumonisins. The goal is to generate innovative and integrated solutions to support stakeholders in effective and sustainable mycotoxin management along food and feed chains. A brief summary of progress and results is described in the following pages per each WP. The scientific Work Packages (WP2, WP3, WP4, WP5, WP6) are described for each task.
 The table of milestones (MS) and deliverables (D) per WP indicates the progress status of each item (%) and its signal, according to this description: GREEN: everything goes well, milestones and deliverables are reached and completed, punctual and complete reporting, no administrative and/or financial problems, good interaction among partners ORANGE: everything goes well enough but milestones and deliverables are partially reached, or incomplete/delayed reporting, some administrative and/or financial problems, medium interaction among beneficiaries and WPs and level of communication. In general, the overall feedback is not so completely negative: the WP development is good but presents some criticisms to be managed and solved in short time, in order to avoid negative effects on the overall results of the project. No serious risks affecting the activity. RED : the activity development meets criticism of high level, that could have negative impact towards objectives and milestones. The criticism could regard missing cooperation of an important Beneficiary, great difficulties in some WP tasks, serious financial problems, missing reporting or serious remarks by European Commission and External Advisory Board. The overall feedback is negative: the WP development presents hard criticism to be shortly managed and solved, with concentrate and punctual efforts and without negative effects on the overall results of the WP. A summary of results is available in the section 1.3, table 1.3.2 - Impact for practices: results, Technology Readness Levels (TRL), target and potential application
Serum neurofilament light chain in functionally relevant coronary artery disease and adverse cardiovascular outcomes
Creators: name: Amrein, Melissa
name: Meier, Stephanie
name: Schäfer, Ibrahim
name: Schaedelin, Sabine
name: Willemse, Eline
name: Benkert, Pascal
name: Walter, Joan
name: Puelacher, Christian
name: Zimmermann, Tobias
name: Median, Daniela
name: Egli, Caroline
name: Leppert, David
name: Twerenbold, Raphael
name: Zellweger, Michael
name: Kuhle, Jens
name: Mueller, Christian
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences

description: Background: Functionally relevant coronary artery disease (fCAD), causing symptoms of myocardial ischemia, can currently only be reliably detected with advanced cardiac imaging. Serum neurofilament light chain (sNfL) is a biomarker for neuro-axonal injury known to be elevated by cardiovascular (CV) risk factors and cerebrovascular small-vessel diseases. Due to their pathophysiological similarities with fCAD and the link to CV risk factors, we hypothesised that sNfL may have diagnostic and prognostic value for fCAD and adverse cardiovascular outcomes. Methods: Of the large prospective Basel VIII study (NCT01838148), 4’016 consecutive patients undergoing cardiac work-up for suspected fCAD were included (median age 68 years, 32.5% women, 46.9% with history of CAD). The presence of fCAD was adjudicated using myocardial perfusion imaging single-photon emission tomography (MPI-SPECT) and coronary angiography. sNfL was measured using a high-sensitive single-molecule array assay. All-cause and cardiovascular death, myocardial infarction (MI), and stroke/transient ischaemic attack (TIA) during 5-year follow-up were the prognostic endpoints. Results: The diagnostic accuracy of sNfL for fCAD as quantified by the area under the curve (AUC) was low (0.58, 95%CI 0.56–0.60). sNfL was strongly associated with age, renal dysfunction, and body mass index and was a strong and independent predictor of all-cause death, cardiovascular death, and stroke/TIA but not MI. Time-dependent AUC for cardiovascular-death at 1-year was 0.85, 95%CI 0.80–0.89, and 0.81, 95%CI 0.77–0.86 at 2-years. Conclusion: While sNfL concentrations did not show a diagnostic role for fCAD, in contrast, sNfL was a strong and independent predictor of cardiovascular outcomes, including all-cause death, cardiovascular death and stroke/TIA.
International Journal of Management & Entrepreneurship
Creators: name: M Tahir
Publisher: name: Zenodo
Year: 2019
Subjects: Management, Organizational Behavior, Marketing, Finance, Human Resource Management, Entrepreneurship, Tourism Management, Business Studies, Public Administration, Management Science, Operations Management

description: International Journal of Management & Entrepreneurship is a management related, academic, double-blind peer-reviewed journal which publishes original research in business management and entrepreneurship field. The journal will provide the primary platform for researchers to share findings and discuss all aspects of contemporary issues in management and entrepreneurship. The journal publishes four issues each year and publishes research papers as well as case studies, research reports, and professional commentaries.  The journal is open access journal and is publicly available without any charges. All articles are published after careful editorial desk review and double-blind peer review. The editorial team consists of Editor-in-Chief and the team members.  We are welcoming submissions for the upcoming issue of the journal. Together, let’s make this journal successful.

M. Tahir

Editor-in-Chief

International Journal of Management & Entrepreneurship

www.fepbl.com/ijme
description: www.fepbl.com/ijme
Semiclassical theory of spin-orbit interactions using spin coherent states
Creators: name: Pletyukhov, Mikhail
name: Amann, Christian
name: Mehta, Mitaxi
name: Brack, Matthias
Publisher: name: Universität Regensburg
Year: 2002
Subjects: subject: 530 Physik

description: We formulate a semiclassical theory for systems with spin-orbit interactions. Using spin coherent states, we start from the path integral in an extended phase space, formulate the classical dynamics of the coupled orbital and spin degrees of freedom, and calculate the ingredients of Gutzwiller\'s trace formula for the density of states. For a two-dimensional quantum dot with a spin-orbit interaction of Rashba type, we obtain satisfactory agreement with fully quantum-mechanical calculations. The mode-conversion problem, which arose in an earlier semiclassical approach, has hereby been overcome.
Periodic orbit theory for the continuum of general mixed-dynamical systems
Creators: name: Kaidel, Jörg
name: Winkler, Peter
name: Brack, Matthias
Publisher: name: Universität Regensburg
Year: 2004
Subjects: subject: 530 Physik

description: We investigate the resonance spectrum of the H\\\'enon-Heiles potential up to twice the barrier energy. The quantum spectrum is obtained by the method of complex coordinate rotation. We use periodic orbit theory to approximate the oscillating part of the resonance spectrum semiclassically and Strutinsky smoothing to obtain its smooth part. Although the system in this energy range is almost chaotic, it still contains stable periodic orbits. Using Gutzwiller\'s trace formula, complemented by a uniform approximation for a codimension-two bifurcation scenario, we are able to reproduce the coarse-grained quantum-mechanical density of states very accurately, including only a few stable and unstable orbits.
$(q,μ)$ and $(p,q,ζ)-$exponential functions: Rogers-Szegő polynomials and Fourier-Gauss transform
Creators: name: Hounkonnou, M. N.
name: Nkouankam, E. B. Ngompe
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: From the realization of $q-$oscillator algebra in terms of generalized derivative, we compute the matrix elements from deformed exponential functions and deduce generating functions associated with Rogers-Szegő polynomials as well as their relevant properties. We also compute the matrix elements associated to the $(p,q)-$oscillator algebra (a generalization of the $q-$one) and perform the Fourier-Gauss transform of a generalization of the deformed exponential functions.
Supplementary material for: "Major vascular injury during minimally invasive gynecologic surgery: simulation-based approach to teaching surgical crisis management skills"
Creators: name: King, Cara R
name: Kim, Annie
name: Donnellan, Nicole
name: Lerner, Veronica
Publisher: name: Zenodo
Year: 2022

description: Supplementary material for the article:Major vascular injury during minimally invasive gynecologic surgery: simulation-based approach to teaching surgical crisis management skills, Journal of Surgical Simulation (2021) 8, 89-102.
 DOI: https://doi.org/10.1102/2051-7726.2021.0012 Surveys.
Analytical perturbative approach to periodic orbits in the homogeneous quartic oscillator potential
Creators: name: Brack, Matthias
name: Fedotkin, Sergey
name: Magner, Aleksandr
name: Mehta, Mitaxi
Publisher: name: Universität Regensburg
Year: 2003
Subjects: subject: 530 Physik

description: We present an analytical calculation of periodic orbits in the homogeneous quartic oscillator potential. Exploiting the properties of the periodic Lame functions that describe the orbits bifurcated from the fundamental linear orbit in the vicinity of the bifurcation points, we use perturbation theory to obtain their evolution away from the bifurcation points. As an application, we derive an analytical semiclassical trace formula for the density of states in the separable case, using a uniform approximation for the pitchfork bifurcations occurring there, which allows for full semiclassical quantization. For the non-integrable situations, we show that the uniform contribution of the bifurcating period-one orbits to the coarse-grained density of states competes with that of the shortest isolated orbits, but decreases with increasing chaoticity parameter alpha.
Bayesian anomaly detection methods for social networks
Creators: name: Heard, Nicholas A.
name: Weston, David J.
name: Platanioti, Kiriaki
name: Hand, David J.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: Learning the network structure of a large graph is computationally demanding, and dynamically monitoring the network over time for any changes in structure threatens to be more challenging still. This paper presents a two-stage method for anomaly detection in dynamic graphs: the first stage uses simple, conjugate Bayesian models for discrete time counting processes to track the pairwise links of all nodes in the graph to assess normality of behavior; the second stage applies standard network inference tools on a greatly reduced subset of potentially anomalous nodes. The utility of the method is demonstrated on simulated and real data sets.
description: Published in at http://dx.doi.org/10.1214/10-AOAS329 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Semiclassical trace formulae for systems with spin-orbit interactions: successes and limitations of present approaches
Creators: name: Amann, Christian
name: Brack, Matthias
Publisher: name: Universität Regensburg
Year: 2002
Subjects: subject: 530 Physik

description: We discuss the semiclassical approaches for describing systems with spin-orbit interactions by Littlejohn and Flynn (1991, 1992), Frisk and Guhr (1993), and by Bolte and Keppeler (1998, 1999). We use these methods to derive trace formulae for several two- and three-dimensional model systems, and exhibit their successes and limitations. We discuss, in particular, also the mode conversion problem that arises in the strong-coupling limit.
Emotion, language, and identity : using language revitalization techniques to create low-anxiety learning environments
Creators: name: Achilles, Ricki-Lynn
Publisher: name: University of British Columbia
Year: 2018

description: This thesis examines the interconnectivity of emotions, identity, and language by exploring how each of these factors contributes to language learning, and specifically endangered language learning. Based on an online survey and fieldwork in Saanich, British Columbia, and Atka, Alaska, it specifically analyzes the techniques and methods language revitalization programs use to create low-stress learning environments. The survey, called the Endangered Language Learning Emotion Scale (ELLES), examined the wide range of emotions associated with learning an endangered language, and yielded a total of 97 responses. Its quantitative section consisted of multiple-choice statements, where respondents rated how strongly they agreed or disagreed with a particular statement. The qualitative portion of the survey included an optional space for respondents to provide written feedback. Fieldwork took place in partnership with Where Are Your Keys (WAYK), which is an organization that helps communities develop ways to train people how to teach and learn a language. WAYK hosted a workshop in Saanich, for teachers from the ȽÁU, WELṈEW̱ Tribal School, to cover various language teaching methods that they could apply to their language classrooms. WAYK also works with the community of Atka to help with their language revitalization program at the local school. Data was gathered in each community through participant-observation, and in Atka, through interviews. The survey and fieldwork aspects of this research both found that isolation and lack of resources are challenges in revitalization work. However, the research results found that themes of community, positivity, and dedication were fundamental in opposing these challenges. This thesis also found that a positive language learning environment is critical for language revitalization efforts. It can result in a better sense of community, broadly, as well as an improved sense of belonging and stronger connection to identity for individual learners. This thesis discusses how identity and emotion relate to the aforementioned themes that emerged in the research, as well as how they play an integral role in language revitalization and endangered language learning.
Hybrid superconductor-semiconductor devices made from self-assembled SiGe nanocrystals on silicon
Creators: name: Katsaros, G.
name: Spathis, P.
name: Stoffel, M.
name: Fournel, F.
name: Mongillo, M.
name: Bouchiat, V.
name: Lefloch, F.
name: Rastelli, A.
name: Schmidt, O. G.
name: De Franceschi, S.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The epitaxial growth of germanium on silicon leads to the self-assembly of SiGe nanocrystals via a process that allows the size, composition and position of the nanocrystals to be controlled. This level of control, combined with an inherent compatibility with silicon technology, could prove useful in nanoelectronic applications. Here we report the confinement of holes in quantum-dot devices made by directly contacting individual SiGe nanocrystals with aluminium electrodes, and the production of hybrid superconductorsemiconductor devices, such as resonant supercurrent transistors, when the dot is strongly coupled to the electrodes. Charge transport measurements on weakly coupled quantum dots reveal discrete energy spectra, with the confined hole states displaying anisotropic gyromagnetic factors and strong spin-orbit coupling strength with pronounced gate-voltage and magnetic-field dependence.
description: 35 pages, 6 figures
Exposure to heat during pregnancy and preterm birth in North Carolina: disparities by residential greenness, urbanicity, and socioeconomic status
Creators: name: Choi, H.M.
name: Son, J.Y.
name: Bell, M.L.
name: Miranda, Marie Lynn
Publisher: name: University of Notre Dame
Year: 2023

description: BACKGROUND AND AIM: Although previous literature suggested beneficial impacts of residential greenness on the association between heat exposure and several health outcomes, research is very limited for birth outcomes. We investigated the association between exposure to heat/heat waves during the last week of gestation and preterm birth (PTB) in North Carolina (NC) from 2003 to 2014. We evaluated disparities by residential greenness, urbanicity, and socioeconomic status (SES) in this association. METHODS: We obtained individual-level birth certificate data for NC from May to September for the years 2003-2014. We estimated daily mean temperature at each maternal residential address using Parameter-elevation Regressions on Independent Slopes Model (PRISM) data. We created 3 definitions of heat waves (≥95th, 97th, 99th percentile for warm-season temperature, for ≥2 consecutive days). The Normalized Difference Vegetation Index (NDVI) was used to assess residential greenness. We applied Cox proportional hazard models to estimate the association between heat/heat waves exposure and PTB after controlling for covariates. We evaluated whether the association between heat and risk of PTB varied by several individual and community characteristics. RESULTS:Of the 546,441 births, 8% were preterm births. Heat exposure during the last week before delivery was significantly associated with risk of PTB. A 1°C increase in temperature during the last week before delivery was associated with a hazard ratio of 1.01 (95% CI: 1.00, 1.02). Higher risk of heat for PTB was associated with some characteristics such as infants living in areas that were urbanized, low SES, or in the Coastal plains. We found significantly higher risk of PTB in areas with low greenness for urbanized area. For heat waves, we did not find significantly positive associations with PTB. CONCLUSIONS:Findings provide evidence that heat exposure during pregnancy increases the risk of PTB. These results have implications for future studies of disparity factors in the heat and birth outcomes associations. KEYWORDS: Heat, Heat waves, Greenness, Preterm birth, Urbanicity, Vulnerable population
Wiener-Hopf factorization and distribution of extrema for a family of Lévy processes
Creators: name: Kuznetsov, Alexey
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: In this paper we introduce a ten-parameter family of Lévy processes for which we obtain Wiener-Hopf factors and distribution of the supremum process in semi-explicit form. This family allows an arbitrary behavior of small jumps and includes processes similar to the generalized tempered stable, KoBoL and CGMY processes. Analytically it is characterized by the property that the characteristic exponent is a meromorphic function, expressed in terms of beta and digamma functions. We prove that the Wiener-Hopf factors can be expressed as infinite products over roots of a certain transcendental equation, and the density of the supremum process can be computed as an exponentially converging infinite series. In several special cases when the roots can be found analytically, we are able to identify the Wiener-Hopf factors and distribution of the supremum in closed form. In the general case we prove that all the roots are real and simple, and we provide localization results and asymptotic formulas which allow an efficient numerical evaluation. We also derive a convergence acceleration algorithm for infinite products and a simple and efficient procedure to compute the Wiener-Hopf factors for complex values of parameters. As a numerical example we discuss computation of the density of the supremum process.
description: Published in at http://dx.doi.org/10.1214/09-AAP673 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Non-Fatal Injuries and Injury Treatment in the West Coast Dungeness Crab Fishery
Creators: name: Bovbjerg, Viktor E.
name: Vaughan, Amelia M.
name: Syron, Laura N.
name: Kaety R. Jacobson
name: Pillai, Sabrina
name: Kincl, Laurel D.
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine

description: Objectives: Non-fatal injuries in the high risk US Dungeness crab fishery have been under-documented, despite their potential for lost work time and income, long-term disability, and early unwanted retirement. The Fishermen Led Injury Prevention Program (FLIPP) characterized injuries in this fishery, in order to identify work hazards and inform injury control measures. Methods: The FLIPP injury survey was completed by 426 fishermen in 23 Washington, Oregon, and California fishing ports prior to the 2015–2016 Dungeness crab season; 413 (97%) provided injury information for this analysis. Participants indicated whether they had been injured in the previous 12 months, described the injury, any treatments received, and whether the injury limited their ability to work. Results: Participants were mostly male (98%), more than half (56.6%) worked as deckhands, and reported considerable fishing experience (median = 14 years, interquartile range 5–27). Eighty-nine fishermen (21.5%) reported an injury incident in the past year, of which 49 (55.1%) were limiting. The 89 incidents yielded 102 injuries, of which nearly two-thirds were sprains/strains (23, 22.5%), surface wounds/bruises (17, 15.0%), cuts (18, 17.6%), or punctures (11, 10.8%). More severe injuries, including eight fractures, were rare. The majority of injuries received either no treatment (27, 26.5%) or first aid (35, 34.3%); clinical care was less common (22, 21.6%), and emergency care rare (3, 2.9%). Conclusion: One in five Dungeness crab fishermen reported an injury incident in the previous year. Most injuries were not severe and did not result in clinical care, but approximately half were work-limiting. Control measures must account for the remote and resource-limited workplace in commercial fishing.
A New Spectrum for Nonlinear Operators in Banach Spaces
Creators: name: Calamai, Alessandro
name: Furi, Massimo
name: Vignoli, Alfonso
Publisher: name: arXiv
Year: 2010
Subjects: subject: Spectral Theory (math.SP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 47J10, 47H14, 47J05

description: Given any continuous self-map f of a Banach space E over K (where K is R or C) and given any point p of E, we define a subset sigma(f,p) of K, called spectrum of f at p, which coincides with the usual spectrum sigma(f) of f in the linear case. More generally, we show that sigma(f,p) is always closed and, when f is C^1, coincides with the spectrum sigma(f'(p)) of the Frechet derivative of f at p. Some applications to bifurcation theory are given and some peculiar examples of spectra are provided.
description: 23 pages, 3 figures
Impacts of Rationalization on Exposure to High Winds in Alaska’s Crab Fisheries
Creators: name: Petesch, Tess
name: Pfeiffer, Lisa
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Objectives: Safety at sea is an often overlooked aspect of well-being that fisheries management actions can affect, even when management actions are not intended to affect safety. Catch shares management has been associated with longer fishing seasons and a decline in the intensity of competition among fishers. This study assesses changes in exposure of Alaska’s commercial crab fisheries to relatively high-risk weather conditions after rationalization, or catch shares management, was implemented. Methods: We compare the rates of fishing in high-wind conditions in the Bristol Bay red king and the Bering Sea snow/tanner crab fisheries pre- and post-rationalization. We also compare results to a portion of the crab fishery that did not undergo the same change in management. Results: The rate of high wind fishing in the snow/tanner crab fishery fell post-rationalization, but increased in the red king crab fishery. Conclusion: When the red king and snow/tanner crab fisheries are considered together, rationalization led to longer seasons and improved flexibility to choose when to fish according to weather conditions. The snow crab fishery experienced a marked decline in higher-risk fishing after rationalization. Results are contrary to expectations for the king crab fisherybecause the flexibility in trip timing provided by the program produced a shift in their season toward winter months when average wind speeds are higher.
Agroforestry School Garden at Colégio Estadual Leopoldo Oscar Stutz/CELOS: An experience of eco-literacy in basic education
Creators: name: Guimarães, Marcela Abreu
name: Celli Ramos, Nina
Publisher: name: Zenodo
Year: 2024
Subjects: Agroecologia
Educação
Sustentabilidade
Socioagrobiodiversidade

description: O presente relato de experiência técnica visa compartilhar um pouco do percurso vivenciado por estudantes e professoras do Colégio Estadual Leopoldo Oscar Stutz (CELOS) na construção e manutenção de uma horta agroflorestal, primando por uma eco-alfabetização baseada nos princípios da Agroecologia, daSustentabilidade e da Educação Alimentar e Nutricional, que nos oriente na direção de uma vida saudável para sociedade, biodiversidade e ambiente.