cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Optimization in wireless sensor and machine-type communication networks
Creators: name: Naddafzadeh Shirazi, Ghasem
Publisher: name: University of British Columbia
Year: 2014

description: Wireless sensor networks (WSNs) are systems used for detecting events and gathering information from an area of interest in many different application domains, from home and industry automation, to healthcare and transportation, to environmental monitoring. With regard to the communication task involved in WSNs, they can also be seen as an instance of the new paradigm, known as machine-type communication (MTC). Similar to traditional wireless sensors, MTC-enabled devices can communicate together without direct human interference. Energy efficiency for the sake of longevity is perhaps the most challenging requirement for many WSNs and MTC networks. In this thesis, we consider ultra-wideband (UWB) transmission technology for energy-efficient communication in WSNs. UWB achieves frugal use of energy by transmitting with low spectral efficiency when compared to legacy wireless technologies. This also allows it to operate license-exempt in many jurisdictions around the world. More recently, however, wireless service operators consider the use of cellular technology also for low data-rate applications originally only served by WSN-type technology. In particular, long-term evolution (LTE) technology has moved into the focus for joint personal-communication and MTC networks. Recent releases of the LTE standard and ongoing work items in LTE standardization specifically accommodate low-cost and low-power MTC. This thesis presents contributions that improve the performance of UWB WSN and LTE MTC networks in several aspects, namely lifetime, localization accuracy, and coverage. A common theme of these different contributions are the use of optimization methods for obtaining scalable, robust, and/or low-complexity solutions. We first address the lifetime maximization problem in a UWB-based WSN designed for multiple event detection. The key contribution is the joint optimization of transmission and routing parameters of sensor nodes so that the energy consumption is distributed as evenly as possible among the entire WSN. We then investigate the challenges of localization in WSNs and provide a convex solution which is robust to measurement uncertainties. In the last part of this thesis we focus on providing coverage for low-cost LTE MTC networks, where the challenge is to develop efficient transmission strategies that maximize the coverage of MTC devices in an LTE cell.
Composite-Fermion Theory for Pseudogap, Fermi Arc, Hole Pocket, and Non-Fermi-Liquid of Underdoped Cuprate Superconductors
Creators: name: Yamaji, Youhei
name: Imada, Masatoshi
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We propose that an extension of the exciton concept to doped Mott insulators offers a fruitful insight into challenging issues of the copper oxide superconductors. In our extension, new fermionic excitations called cofermions emerge in conjunction to generalized excitons. The cofermions hybridize with conventional quasiparticles. Then a hybridization gap opens, and is identified as the pseudogap observed in the underdoped cuprates. The resultant Fermi-surface reconstruction naturally explains a number of unusual properties of the underdoped cuprates, such as the Fermi arc and/or pocket formation.
description: 9 pages, 8 figures
Data-Driven Machinery Fault Diagnosis
Creators: name: Sahoo, Biswajit
Publisher: name: Zenodo
Year: 2019
Subjects: bearing fault diagnosis
machinery condition monitoring
machine learning
deep learning
cwru dataset

description: This is the first release of the project in Zenodo. Latest version of the project can be found at https://biswajitsahoo1111.github.io/cbm_codes_open/.
Feynman Rules for Gravity in Quantum Field Theory
Creators: name: AbdulMajid, Basel
Publisher: name: figshare
Year: 2023
Subjects: Mathematical aspects of quantum and conformal field theory, quantum gravity and string theory
Field theory and string theory
Mathematical aspects of general relativity
General relativity and gravitational waves

description: In this paper, we derive the Feynman rules for gravity in Quantum Field Theory (QFT) using effective field theory. We begin by expanding the metric tensor around the Minkowski background and derive the Einstein-Hilbert action to second order in the metric perturbation. We then obtain the Feynman rules for gravity by expanding the interaction term between matter and the gravitational field to second order in the metric perturbation. The leading order term corresponds to the exchange of a single graviton, while the next-to-leading order term corresponds to the exchange of two gravitons. The Feynman rules can be used to calculate the scattering amplitudes of particles in the presence of a weak gravitational field. However, due to the non-renormalizability of the theory, the Feynman rules are only valid as an effective theory up to a certain energy or length scale. Despite these limitations, the Feynman rules for gravity in QFT provide a valuable tool for studying the behavior of particles in the presence of gravity and can provide insight into the underlying physics of gravity.
Direct observation of the influence of the As-Fe-As angle on the Tc of superconducting SmFeAsO$_{1-x}$F$_{x}$
Creators: name: Garbarino, G.
name: Weht, R.
name: Sow, A.
name: Sulpice, A.
name: Toulemonde, P.
name: Álvarez-Murga, M.
name: Strobel, P.
name: Bouvier, P.
name: Mezouar, M.
name: Núñez-Regueiro, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The electrical resistivity, crystalline structure and electronic properties calculated from the experimentally measured atomic positions of the compound SmFeAsO$_{0.81}$F$_{0.19}$ have been studied up to pressures ~20GPa. The correlation between the pressure dependence of the superconducting transition temperature (Tc) and crystallographic parameters on the same sample shows clearly that a regular FeAs$_{4}$ tetrahedron maximizes Tc, through optimization of carrier transfer to the FeAs planes as indicated by the evolution of the electronic band structures.
description: 15pages, 4 figures
A Robust Approach for the Growth of Epitaxial Spinel Ferrite Films
Creators: name: Ma, J. X.
name: Mazumdar, D.
name: Kim, G.
name: Sato, H.
name: Bao, N. Z.
name: Gupta, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Heteroepitaxial spinel ferrites NiFe2O4 and CoFe2O4 films have been prepared by pulsed laser deposition (PLD) at various temperatures (175 - 690 °C) under ozone/oxygen pressure of 10 mTorr. Due to enhanced kinetic energy of ablated species at low pressure and enhanced oxidation power of ozone, epitaxy has been achieved at significantly lower temperatures than previously reported. Films grown at temperature below 550 °C show a novel growth mode, which we term "vertical step-flow" growth mode. Epitaxial spinel ferrite films with atomically flat surface over large areas and enhanced magnetic moment can be routinely obtained. Interestingly, the growth mode is independent of the nature of substrates (spinel MgAl2O4, perovskite SrTiO3, and rock salt MgO) and film thicknesses. The underlying growth mechanism is discussed.
description: 13 pages, 6 images
Liquid-gas mixed phase in nuclear matter at finite temperature
Creators: name: Maruyama, Toshiki
name: Tatsumi, Toshitaka
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We explore the geometrical structure of Liquid-gas (LG) mixed phase which is relevant to nuclear matter in the crust region of compact stars or supernovae. To get the equation of state (EOS) of the system, the Maxwell construction is found to be applicable to symmetric nuclear matter, where protons and neutrons behave simultaneously. For asymmetric nuclear matter, on the other hand, the phase equilibrium can be obtained by fully solving the Gibbs conditions since the components in the L and G phases are completely different. We also discuss the effects of surface and the Coulomb interaction on the mixed phase.
description: Contributed talk at the INPC 2010 at Vancouver
Isotone maps on lattices
Creators: name: Bergman, G. M.
name: Grätzer, G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: Let (L_i : i\in I) be a family of lattices in a nontrivial lattice variety V, and let ϕ_i: L_i --> M, for i\in I, be isotone maps (not assumed to be lattice homomorphisms) to a common lattice M (not assumed to lie in V). We show that the maps ϕ_i can be extended to an isotone map ϕ: L --> M, where L is the free product of the L_i in V. This was known for V the variety of all lattices (Yu. I. Sorkin 1952). The above free product L can be viewed as the free lattice in V on the partial lattice P formed by the disjoint union of the L_i. The analog of the above result does not, however, hold for the free lattice L on an arbitrary partial lattice P. We show that the only codomain lattices M for which that more general statement holds are the complete lattices. On the other hand, we prove the analog of our main result for a class of partial lattices P that are not-quite-disjoint unions of lattices. We also obtain some results similar to our main one, but with the relationship lattices:orders replaced either by semilattices:orders or by lattices:semilattices. Some open questions are noted.
Seismic velocities and composition of the Canadian crust
Creators: name: Postlethwaite, Benjamin
Publisher: name: University of British Columbia
Year: 2014

description: It has been suggested that processes driving crustal formation in the Archean and Proterozoic were dissimilar and produced crusts with unique bulk properties and average thicknesses. The calibration of models based on evolving mantle fractionation or mantle convection style require accurate estimates of the geological and geophysical properties of crustal provinces to better constrain the details of crustal formation. Fifteen years of publicly accessible teleseismic data from all available Canadian seismic stations are binned in horizontal slowness and deconvolved into receiver functions. We apply a stacking method to retrieve estimates of the bulk crustal velocity ratio V P /V S and thickness H from these data under the assumption of locally 1-D structure. We also investigate modifications to this approach that can allow discrimination of V S and V P under certain conditions. Bootstrap error analysis is performed for each station dataset and subsets of these measurements are compared with results for matching stations from previous studies. Analysis of results in conjunction with additional velocity estimates from active source seismic studies and a seismic property database affords improved constraints on bulk geological composition of the Canadian landmass that are used to evaluate competing models of crustal formation.
Diffraction of slow neutrons by holographic SiO_2 nanoparticle-polymer composite gratings
Creators: name: Klepp, J.
name: Pruner, C.
name: Tomita, Y.
name: Plonka-Spehr, C.
name: Geltenbort, P.
name: Ivanov, S.
name: Manzin, G.
name: Andersen, K. H.
name: Kohlbrecher, J.
name: Ellabban, M. A.
name: Fally, M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Diffraction experiments with holographic gratings recorded in SiO$_2$ nanoparticle-polymer composites have been carried out with slow neutrons. The influence of parameters such as nanoparticle concentration, grating thickness and grating spacing on the neutron-optical properties of such materials has been tested. Decay of the grating structure along the sample depth due to disturbance of the recording process becomes an issue at grating thicknesses of about 100 microns and larger. This limits the achievable diffraction efficiency for neutrons. As a solution to this problem, the Pendellösung interference effect in holographic gratings has been exploited to reach a diffraction efficiency of 83% for very cold neutrons.
description: 7 pages, 3 figures, submitted to Phys. Rev. A
Additional file 1 of Evaluation of optimum classification measures used to define textbook outcome among patients undergoing curative-intent resection of gastric cancer
Creators: name: Bobrzynski, L
name: Sędłak, K
name: Rawicz-Pruszyński, K
name: Kolodziejczyk, P
name: Szczepanik, A
name: Polkowski, W
name: Richter, P
name: Sierzega, M
Publisher: name: figshare
Year: 2023
Subjects: Medicine
Biotechnology
Mathematical Sciences not elsewhere classified
Cancer
Computational Biology

description: Additional file 1: Table S1. Components used to define Textbook Outcome (TO) in gastric cancer surgery. Table S2. Performance parameters of Cox proportional hazards models for Textbook Outcomes (TO) defined using various components (Kraków cohort, N = 1,479). Table S3. Cox proportional analysis for overall and conditional survival in patients with individual components of textbook outcome (Kraków cohort, N = 1,479). Table S4. Univariate analysis of overall and conditional survival in patients with individual components of textbook outcome (TO) (Kraków cohort, N = 1,479). Table S5. Univariate and multivariate Cox proportional hazards analysis for overall survival (Kraków cohort, N = 1,479). Figure S1. Study flowchart. Figure S2. Kaplan–Meier survival curves for overall survival of patients achieving each quality metric of Textbook Outcome for Kraków cohort, N = 1,479 (log-rank test). Figure S3. Kaplan–Meier survival curves for conditional survival of patients achieving each quality metric of Textbook Outcome for Kraków cohort, N = 1,479 (log-rank test). Figure S4. LOESS curve fitting (solid line with 95% confidence intervals) for the temporal trend in the annual proportion of patients achieving each quality metric of Textbook Outcome (Kraków cohort, N = 1,479). Figure S5. Distribution of postoperative complications according to the Clavien-Dindo classification in different time periods (Kraków cohort, N = 1,479). Figure S6. Distribution of postoperative complications according to the Clavien-Dindo classification by the type of resection (Kraków cohort, N = 1,479).
Identification of RNA binding proteins associated with differential splicing in neuroendocrine prostate cancer
Creators: name: Yeung, Jake
Publisher: name: University of British Columbia
Year: 2014

description: Alternative splicing is a tightly regulated process that can be disrupted in cancer. Established cancer genes express splice isoforms with distinct properties and their differential expression is associated with tumour progression. Although prostate adenocarcinoma (PCa) is effectively managed at early stage by therapies targeting the androgen receptor signaling axis, up to 30% of late stage prostate cancers progress to a treatment-resistant form of the disease called neuroendocrine prostate cancer (NEPC), for which there are few therapeutic options. It is histologically distinct from PCa, expresses a neuronal gene signature and is associated with poor survival (<1 year). We hypothesize that alternative splicing has an important role in driving transformation of PCa tumours towards the NEPC phenotype and we seek to identify regulators of aberrant alternative splicing. We integrated a number of bioinformatics tools to investigate alternative splicing in NEPC. Analyzing RNA-Seq data from a patient-derived xenograft model of neuroendocrine transdifferentiation, we compared splicing profiles between NEPC and PCa and identified a set of differentially spliced cassette exons. We found these cassette exons to code for protein segments containing DNA-binding domains, protein-binding regions and posttranslational modification sites. We discovered evolutionarily conserved motifs around intronic regions of the cassette exons and implicated them with RNA recognition motifs of tissue-specific RNA binding proteins. We corroborated our findings by analyzing RNA-Seq data from a patient-tumour cohort and found recurrent RNA binding proteins associated with cassette exon inclusion. Our integrated analysis suggests that splicing changes between PCa and NEPC are mediated by tissue-specific RNA binding proteins, which may be of therapeutic or diagnostic value.
A search for concentric circles in the 7-year WMAP temperature sky maps
Creators: name: Wehus, I. K.
name: Eriksen, H. K.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: In a recent analysis of the 7-year WMAP temperature sky maps, Gurzadyan and Penrose claim to find evidence for violent pre-Big Bang activity in the form of concentric low-variance circles at high statistical significance. In this paper, we perform an independent search for such concentric low-variance circles, employing both chi^2 statistics and matched filters, and compare the results obtained from the 7-year WMAP temperature sky maps with those obtained from LCDM simulations. Our main findings are the following: We do reproduce the claimed ring structures observed in the WMAP data as presented by Gurzadyan and Penrose, thereby verifying their computational procedures. However, the results from our simulations do not agree with those presented by Gurzadyan and Penrose. On the contrary we obtain a substantially larger variance in our simulations, to the extent that the observed WMAP sky maps are fully consistent with the LCDM model as measured by these statistics.
description: 4 pages, 4 figures, submitted to ApJL
Tensorflow 2 code for D2L book's Attention Mechanisms chapter
Creators: name: Sahoo, Biswajit
Publisher: name: Zenodo
Year: 2021
Subjects: attention mechanisms
transformers
deep learning
machine learning

description: This release contains self-sufficient code for Attention Mechanisms chapter of D2L book. This code is merger with the book. For details see PR: #1756, #1768
Aasa Aaloe välipäevik nr 24
Creators: name: Aaloe, Aasa
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1990
Subjects: Ordovician
Estonia
Leningrad Oblast
drill cores
geological descriptions

description: Field notebook with description Ordovician Kukruse Stage in boreholes Estonia and Leningrad oblast
Tensorflow 2 code for D2L book's Generative Adversarial Networks (GANs) chapter
Creators: name: Sahoo, Biswajit
Publisher: name: Zenodo
Year: 2021
Subjects: generative adversarial networks
deep learning
machine learning

description: This release contains TF2 code for Generative Adversarial Networks chapter of D2L book. This code is merged with the book. For details see PR: #1760
Electrical Measurement of the Direct Spin Hall Effect in Fe/In_xGa_{1-x}As Heterostructures
Creators: name: Garlid, E. S.
name: Hu, Q. O.
name: Chan, M. K.
name: Palmstrom, C. J.
name: Crowell, P. A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report on an all-electrical measurement of the spin Hall effect in epitaxial Fe/In_{x}Ga_{1-x}As heterostructures with n-type channel doping (Si) and highly doped Schottky tunnel barriers. A transverse spin current generated by an ordinary charge current flowing in the In_{x}Ga_{1-x}As is detected by measuring the spin accumulation at the edges of the channel. The spin accumulation is identified through the observation of a Hanle effect in the Hall voltage measured by pairs of ferromagnetic contacts. We investigate the bias and temperature dependence of the resulting Hanle signal and determine the skew and side-jump contributions to the total spin Hall conductivity.
description: 10 pages, submitted to Phys. Rev. Lett
SLIM at LHC: LHC search power for a model linking dark matter and neutrino mass
Creators: name: Farzan, Yasaman
name: Hashemi, Majid
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Recently a model has been proposed that links dark matter and neutrino masses. The dark matter candidate which is dubbed as SLIM has a mass of MeV scale and can show up at low energy experiments. The model also has a high energy sector which consists of a scalar doublet, $(ϕ^-, ϕ^0)$. We discuss the potential of the LHC for discovering the new scalars. We focus on the $ϕ^+ϕ^-$ and $ϕ^{\pm} ϕ^0$ production and the subsequent decay of the charged scalar to a charged lepton and the SLIM which appears as missing energy. Identifying the background, we estimate the signal significance and find that it can exceed $5 σ$ at 30 ${\rm fb}^{-1}$ for the 14 TeV run at the LHC. We comment on the possibility of extracting the flavor structure of the Yukawa couplings which also determine the neutrino mass matrix. Finally, we discuss the prospects of this search at the current 7 TeV run of the LHC.
description: 26 pages, 21 figures
AlterBBN: A program for calculating the BBN abundances of the elements in alternative cosmologies
Creators: name: Arbey, Alexandre
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We describe AlterBBN, a public C program for evaluating the abundances of the elements generated by Big-Bang nucleosynthesis (BBN). This program enables the user to compute the abundances of the elements in the standard model of cosmology, and additionally provides possibilities to alter the assumptions of the cosmological model in order to study their consequences on the abundances of the elements. In particular the baryon-to-photon ratio and the effective number of neutrinos, as well as the expansion rate and the entropy content of the Universe during BBN can be modified in AlterBBN. Such features allow the user to test the cosmological models by confronting them to BBN constraints. A presentation of the physics of BBN and the features of AlterBBN is provided here under the form of a manual.
description: 15 pages, 1 figure, 1 table. AlterBBN can be obtained from https://alterbbn.hepforge.org/
Identification of overlapping communities and their hierarchy by locally calculating community-changing resolution levels
Creators: name: Havemann, Frank
name: Heinz, Michael
name: Struck, Alexander
name: Gläser, Jochen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: H.2.8

description: We propose a new local, deterministic and parameter-free algorithm that detects fuzzy and crisp overlapping communities in a weighted network and simultaneously reveals their hierarchy. Using a local fitness function, the algorithm greedily expands natural communities of seeds until the whole graph is covered. The hierarchy of communities is obtained analytically by calculating resolution levels at which communities grow rather than numerically by testing different resolution levels. This analytic procedure is not only more exact than its numerical alternatives such as LFM and GCE but also much faster. Critical resolution levels can be identified by searching for intervals in which large changes of the resolution do not lead to growth of communities. We tested our algorithm on benchmark graphs and on a network of 492 papers in information science. Combined with a specific post-processing, the algorithm gives much more precise results on LFR benchmarks with high overlap compared to other algorithms and performs very similar to GCE.
description: 25 pages, 10 figures
Heldur Nestori välipäevik nr 2
Creators: name: Nestor, Heldur
Publisher: name: Tallinna Tehnikaülikooli Geoloogia Instituut
Year: 1961
Subjects: Silurian
Estonia
Saaremaa and Muhu Island
outcrops
geological descriptions

description: Field notebook with description Silurian in outcrops Saaremaa and Muhu Island (years 1961, 1963, 1979, 1985, 1986)
Secant varieties of P^2 x P^n embedded by O(1,2)
Creators: name: Cartwright, Dustin
name: Erman, Daniel
name: Oeding, Luke
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14M15 (Primary) 14M12 (Secondary)

description: We describe the defining ideal of the rth secant variety of P^2 x P^n embedded by O(1,2), for arbitrary n and r at most 5. We also present the Schur module decomposition of the space of generators of each such ideal. Our main results are based on a more general construction for producing explicit matrix equations that vanish on secant varieties of products of projective spaces. This extends previous work of Strassen and Ottaviani.
description: 21 pages
Biogeoclimatic ecosystem classification of subalpine and alpine plant communities in the Cariboo Mountains.
Creators: name: Osorio, Federico G.
Publisher: name: University of British Columbia
Year: 2014

description: Terrestrial ecosystems in British Columbia are cataloged using the Biogeoclimatic Ecosystem Classification (BEC). My research is a continuation of the BEC program, specifically aimed at classifying high-elevation ecosystems (alpine and subalpine) of the western Cariboo Mountains of British Columbia. I’ve included a literature review describing the factors that contribute to the formation of high-elevation plant communities. My results include: five new site series for the Interior Mountain Heather wet cold alpine subzone; b) seven new site series for the Engelmann Spruce Subalpine Fir wet cold parkland subzone; c) two plant orders (one not previously described); d) 5 alliances (2 not previously described), and 19 plant associations (17 not previously described). These results contribute to the description of Site Associations, Site Orders and Site Alliances for the provincial Alpine classification. To develop the classification, I explored the interaction of vegetation with topographic and edaphic variables, and followed phytosociology methods to develop the nomenclature for the plant communities
Additional file 1 of The novel roles of YULINK in the migration, proliferation and glycolysis of pulmonary arterial smooth muscle cells: implications for pulmonary arterial hypertension
Creators: name: Wu, Yi-Chia
name: Wang, Wei-Ting
name: Yang, Ming-Chun
name: Su, Yu-Tsun
name: Yeh, Jwu-Lai
name: Hsu, Jong-Hau
name: Wu, Jiunn-Ren
Publisher: name: figshare
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer

description: Additional file 1: Figure S1. Colony formation analysis. A total of 3 × 102 PASMCs, with their respective treatments as indicated, were seeded into six-well plates and allowed to grow for 10 days. The formed colonies were then fixed with 4% paraformaldehyde and stained with crystal violet. Figure S2. Morphological changes of pulmonary artery in MCT-induced PAH rats. Tissues of pulmonary artery were derived from normal and MCT-induced PAH rats respectively, for Hematoxylin & Eosin staining. Representative photomicrographs indicate the MCT-induced morphological changes in the tissues of pulmonary artery. Magnification 200×.
The Search for Low-mass Companions of B Stars in the Carina Nebula Cluster Trumpler 16
Creators: name: Evans, Nancy Remage
name: DeGioia-Eastwood, Kathleen
name: Gagne, Marc
name: Townsley, Leisa
name: Broos, Patrick
name: Wolk, Scott
name: Naze, Yael
name: Corcoran, Michael
name: Oskinova, Lida
name: Moffat, Anthony F. J.
name: Wang, Junfeng
name: Walborn, Nolan R.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We have developed lists of likely B3--A0 stars (called "late B" stars) in the young cluster Trumpler 16. The following criteria were used: location within 3' of Eta Car, an appropriate V and B-V combination, and proper motion (where available). Color and magnitude cuts have been made assuming an E(B-V) =0.55 mag +/- 0.1, which is a good approximation close to the center of Trumpler 16. These lists have been cross-correlated with X-ray sources found in the Chandra Carina Complex Project (CCCP). Previous studies have shown that only very rarely (if at all) do late main sequence B stars produce X-rays. We present evidence that the X-ray detected sources are binaries with low-mass companions, since stars less massive than 1.4 Msun are strong X-ray sources at the age of the cluster. Both the median X-ray energies and X-ray luminosities of these sources are in good agreement with values for typical low-mass coronal X-ray sources. We find that 39% of the late B stars based on a list with proper motions have low-mass companions. Similarly, 32% of a sample without proper motions have low-mass companions. We discuss the X-ray detection completeness. These results on low-mass companions of intermediate mass stars are complementary to spectroscopic and interferometric results, and probe new parameter space of low mass companions at all separations. They do not support a steeply rising distribution of mass ratios to low masses for intermediate-mass (5 Msun) primaries, such as would be found by random pairing from the Initial Mass Function.
description: Accepted for the ApJS Special Issue on the Chandra Carina Complex Project (CCCP), scheduled for publication in May 2011. All 16 CCCP Special Issue papers are available at http://cochise.astro.psu.edu/Carina_public/special_issue.html through 2011 at least
The Einstein-Vlasov System/Kinetic Theory
Creators: name: Andréasson, Håkan
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: The main purpose of this article is to provide a guide to theorems on global properties of solutions to the Einstein--Vlasov system. This system couples Einstein's equations to a kinetic matter model. Kinetic theory has been an important field of research during several decades in which the main focus has been on non-relativistic and special relativistic physics, i.e., to model the dynamics of neutral gases, plasmas, and Newtonian self-gravitating systems. In 1990, Rendall and Rein initiated a mathematical study of the Einstein--Vlasov system. Since then many theorems on global properties of solutions to this system have been established.
description: Published version http://www.livingreviews.org/lrr-2011-4
Amphinemura Ris 1902
Creators: name: Zwick, Peter
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Nemouridae
Amphinemura

description: Genus Amphinemura Amphinemura males present an amazing diversity of bizarre secondary genital characters and species distinction is not normally a problem, even among close relatives. However, females are often externally rather similar. It is therefore suggested to illustrate the internal female genital sclerites whenever possible. Their examination will not be practical in routine identifications but may provide important help in critical distinctions, for example when new regional records are to be based on only females. The present study provides sketches of sclerotized vaginal structures for diagnostic purposes only. The attachment of the two hyaline seminal receptacles typical of the family lies on top and is easily seen while the unpaired oviduct lies ventrally and is rarely noticed under the folded and partly sclerotized copulatory pouch (Zwick 1973c). A full understanding of structural details and how particular folds interconnect would require special study and was not attempted.
description: Published as part of Zwick, Peter, 2010, New Species And New Records Of Plecoptera From Korea And The Russian Far East, pp. 75-97 in Illiesia 6 (9) on page 76, DOI: 10.5281/zenodo.4759703
description: {"references": ["Zwick, P. (1973 c): Insecta Plecoptera. Phylogenetisches System und Katalog. Das Tierreich 94: I-XXXII, 1 - 465."]}
Marine protected areas : a global exploration of their quantity and quality
Creators: name: Boonzaier, Lisa
Publisher: name: University of British Columbia
Year: 2014

description: Expansion in the number and extent of marine protected areas (MPAs) has been dramatic during the past century, but coverage remains limited and there are concerns that many MPAs are failing to meet their objectives. After updating the global database of MPAs maintained by the Sea Around Us, new estimates of global marine protected area were calculated and revealed a degree of progress towards protecting at least 10% of the global ocean by 2020. It is estimated that more than 6,000 MPAs covering 3.27% of the world’s oceans (∼11.9 million km²) have been designated to date. The protection these MPAs offer is generally weak with about one-fifth (∼2.2 million km²) of their combined area designated as no-take (i.e., where fishing and other extractive activities are prohibited). Additional large tracts of ocean will need to be protected to reach the 10% target, and hypothetical scenarios for such expansion were investigated. To improve understanding of the likely conservation effectiveness of MPAs, trends in their management effectiveness were explored. Results from a self-administered survey questionnaire, distributed to managers and other experts associated with a random sample of MPAs from around the world, revealed a wide range of MPA management effectiveness across different socioeconomic contexts. The results were intended to inform a model of MPA management effectiveness based on socioeconomic, governance and other contextual variables, but no clear relationships between contextual variables and MPA management effectiveness were identified. Overall, the survey findings confirmed results of other studies: while some MPAs are well supported with funding, staff and equipment, others lack even basic management elements. Additional research is essential to understanding the issues preventing MPAs from meeting their objectives, including effectively contributing to biodiversity conservation.
Two-lane traffic-flow model with an exact steady-state solution
Creators: name: Kanai, Masahiro
Publisher: name: arXiv
Year: 2010
Subjects: subject: Cellular Automata and Lattice Gases (nlin.CG)
subject: FOS: Physical sciences

description: We propose a stochastic cellular-automaton model for two-lane traffic flow based on the misanthrope process in one dimension. The misanthrope process is a stochastic process allowing for an exact steady-state solution; hence we have an exact flow-density diagram for two lane traffic. In addition, we introduce two parameters that indicate respectively driver's driving-lane preference and passing-lane priority. Due to the additional parameters, the model shows a deviation of the density ratio for driving-lane use and a biased lane-efficiency in flow. Then, a mean-field approach explicitly describes the asymmetric flow by the hop rates, the driving-lane preference, and the passing-lane priority. Meanwhile, the simulation results are in good agreement with an observational data, and we thus estimate these parameters. We conclude that the proposed model successfully produces two-lane traffic flow particularly with the driving-lane preference and the passing-lane priority.
description: 8 pages, 3 figures
Amphinemura coreana Zwick 1973
Creators: name: Zwick, Peter
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Nemouridae
Amphinemura
Amphinemura coreana

description: Amphinemura coreana Zwick, 1973 (Fig. 1) Material examined. REPUBLIC OF KOREA: Jirisan, Hamyang-gun, Macheon-Myeon, Samjeon-li, Alt. 700 m, 35°20.93'N 127°38.50'E, 11.IV.-8.V. 2004, Malaise trap on small stream, many ♂ and ♀; same locality, 27.VII.-16.VIII.2004, 2♀. Chungnam, Keumsan, Gunbuk-Myeon, Sanan-2-li, 7.-20.IV. 2005, 2 Malaise traps on small stream, 6♂, 6♀; same locality, 20.IV.- 8.V. 2005, 5♂, 9♀. Chungbuk, Sangchon-Myeon Dungeon-li near Doma Pass, Alt. 750 m, 2.-26.V. 2006, 2 Malaise traps in forest on small stream, ca 160 ♂, ♀; same data, but 500 m, 21♂, 22♀. Notes. This very large species was first described from Korea (Zwick 1973a) but occurs also in the Russian Far East (Zhiltzova 2003). Female. The male genitalia are very different from other Korean Amphinemura, and so are the female genital sclerites. In dorsal view of a cleared specimen (Fig. 1) one notices a large, strongly sclerotized pouch about as long as wide, with parabolic front margin and an acute, rearward pointing muscle attachment on the side. The dorsal face is anteriorly covered by a large collar-like shield with crenulate margin. The shield includes a heart-shaped anterior membranous area with delicate funnel-shaped folds to which the bases of the two receptacles are attached. In the centre of the rear half appear two strong sclerotized folds which converge and form a Y-shaped pattern.
description: Published as part of Zwick, Peter, 2010, New Species And New Records Of Plecoptera From Korea And The Russian Far East, pp. 75-97 in Illiesia 6 (9) on page 76, DOI: 10.5281/zenodo.4759703
description: {"references": ["Zwick, P. 1973 a. Plecoptera from Korea. Annales historico-naturales Musei nationalis Hungarici, 65: 157 - 169.", "Zhiltzova, L. A. 2003. Plecoptera Gruppe Euholognatha. Fauna of Russia and Neighbouring Countries, Insecta Plecoptera, 1 (1): 537 + 7 unnumbered pages; Russian Academy of Sciences, Zoological Institute, St. Petersburg, Nauka, in Russian."]}
Amphinemura verrucosa Zwick 1973
Creators: name: Zwick, Peter
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Nemouridae
Amphinemura
Amphinemura verrucosa

description: Amphinemura verrucosa Zwick, 1973 (Fig. 2) Amphinemura verrucosa Zwick, 1973a:161. Holotype ♂, PEOPLE'S REPUBLIC OF KOREA, Prov. Kanwon, Diamond Range, Hotel Go-song (Museum Budapest). Amphinemura sp. - Zwick, 1973a:161. (♀). Material examined. REPUBLIC OF KOREA: Jirisan, Hamyang-gun, Munsu-Sa, Songjeong-li, Alt. 400 m, 35°24.74'N 127°43.82'E, 6.-27.VI. 2004, Malaise trap in forested area at sunlight, 2♂, 11♀. Jirisan, Hamyanggun, Macheon-Myeon, Samjeon-li, Alt. 700 m, 35°20.93'N 127°38.50'E, 11.IV.-8.V. 2004, Malaise trap on small stream, 1♂. Notes. Known from Korea (Zwick 1973a) and the South of the Russian Far East (Zhiltzova 2003). Both sexes are easily identified by their genitalia. Female. The female was first illustrated as Amphinemura sp. (Zwick 1973a: fig. 16; repr. in Zhiltzova 2003: fig. 244) but Levanidova & Zhiltzova (1979) recognized it as the present species. Females are unmistakable because of a raised cone on the rear margin of S7. The inner genital sclerites of a specimen from the Russian Far East, Khabarovski kraj, tributary to River Khor (my collection) are elongate, with a small strongly sclerotized half-tube in front and two tongue-shaped dorsal sclerotized pockets on top, and triangular lateral extensions.
description: Published as part of Zwick, Peter, 2010, New Species And New Records Of Plecoptera From Korea And The Russian Far East, pp. 75-97 in Illiesia 6 (9) on page 76, DOI: 10.5281/zenodo.4759703
description: {"references": ["Zwick, P. 1973 a. Plecoptera from Korea. Annales historico-naturales Musei nationalis Hungarici, 65: 157 - 169.", "Zhiltzova, L. A. 2003. Plecoptera Gruppe Euholognatha. Fauna of Russia and Neighbouring Countries, Insecta Plecoptera, 1 (1): 537 + 7 unnumbered pages; Russian Academy of Sciences, Zoological Institute, St. Petersburg, Nauka, in Russian.", "Levanidova, I. M. & L. A. Zhiltzova. 1979. An annotated list of the stoneflies (Plecoptera) of the Soviet Far East. Internationale Revue der Gesamten Hydrobiologie, 64: 551 - 576."]}
Formation and Climate Impact from Contrails
Creators: name: Burkhardt, Ulrike
Publisher: name: Zenodo
Year: 2021
Subjects: aviation
aircraft
climate
atmosphere
engine
emission
water
contrail
cirrus
cloud
global warming
radiation
ice
crystal
formation
coverage
sedimentation
life time
CO2
NOX
simulation
model
AIC
DLR
aerolectures
aerolectures2021

description: Today, air traffic is estimated to contribute between 3.5% and 5% to the anthropogenic forcing of climate change. Contrail cirrus, the cirrus clouds that form within the aircraft plume, account for the largest share of the aviation related forcing, larger than the forcing from aviation CO2 emissions. Contrails form when the aircraft exhaust mixes with environmental air, and during this mixing the plume relative humidity increases so much that water saturation is exceeded. Contrail formation increases cirrus cloudiness and modifies the radiation budget of the earth. This change in the radiation budget can be estimated using climate models that include a representation of contrail cirrus processes. The impact of contrail cirrus on radiation is dependent on contrail cirrus optical properties and their life time or coverage. Properties and life times are controlled by microphysical processes such as ice formation, i.e. processes on the scale of a single ice crystal. Simulations can be compared to in-situ or remote sensing measurements and the sensitivity of simulated contrail cirrus properties and radiative forcing to emissions can be explored.
description: Hamburg Aerospace Lecture Series --- Collection of Presentations --- http://www.AeroLectures.de
Thermodynamic magnetization of two-dimensional electron gas measured over wide range of densities
Creators: name: Reznikov, M.
name: Kuntsevich, A. Yu.
name: Teneh, N.
name: Pudalov, V. M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We report measurements of dm/dn in Si MOSFET, where m is the magnetization of the two-dimensional electron gas and n is its density. We extended the density range of measurements from well in the metallic to deep in the insulating region. The paper discusses in detail the conditions under which this extension is justified, as well as the corrections one should make to extract dm/dn properly. At low temperatures, dm/dn was found to be strongly nonlinear already in weak magnetic fields, on a scale much smaller than the characteristic scales, expected for interacting two-dimensional electron gas. Surprisingly, this nonlinear behavior exists both in the dielectric, and in the metallic region. These observations, we believe, provide evidence for strong coupling of the itinerant and localized electrons in Si-MOSFET.
description: 5 pages, 3figures
Achievable Transverse Cylindrical Electromagnetic Mode
Creators: name: Chen, R.
name: Li, X.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The system of Maxwell equations with an initial condition in a vacuum is solved in a cylindrical coordinate system. It derives the cylindrical transverse electromagnetic wave mode in which the electric field and magnetic field are not in phase. Such electromagnetic wave can generate and exist in actual application, and there is no violation of the law of conservation of energy during the electromagnetic field interchanges.
description: 7 pages, 1 figure, 25 equations
Amphinemura steinmanni Zwick 1973
Creators: name: Zwick, Peter
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Plecoptera
Nemouridae
Amphinemura
Amphinemura steinmanni

description: Amphinemura steinmanni Zwick, 1973 Amphinemura steinmanni Zwick, 1973a:161. Holotype ♂, PEOPLE'S REPUBLIC OF KOREA, Prov. Kanwon, Diamond Range, Hotel Go-song (Museum Budapest). Material examined. REPUBLIC OF KOREA: Gangwondo, Pyeongchang, Yongpyeong-Myeon, Nodong-li, Nodong valley, Alt. 800 m, 5.-14.VI. 2006, 37°42.08'N 128°28.89E, 3 Malaise traps in forest in shade, 1♂. Jirisan, Hamyang-gun, Munsu-Sa, Songjeong-li, Alt. 400 m, 35°24'74''N 127°43'82''E, 6.- 27.VI. 2004 Pierre Tripotin coll. Malaise trap in forested area at sunlight, 4♀. Notes. Another species originally described from Korea (Zwick 1973a) that extends into the South of the Russian Far East (Zhiltzova 2003). The female genital region is generally similar to the next two species. Unfortunately, the Museum Budapest which houses the types no longer issues loans. The female syntypes could therefore not be examined for their inner genital sclerites. The present females are assigned to A. steinmanni for their obliquely truncate lobes of the subgenital plate and the rufus centre of head.
description: Published as part of Zwick, Peter, 2010, New Species And New Records Of Plecoptera From Korea And The Russian Far East, pp. 75-97 in Illiesia 6 (9) on page 77, DOI: 10.5281/zenodo.4759703
description: {"references": ["Zwick, P. 1973 a. Plecoptera from Korea. Annales historico-naturales Musei nationalis Hungarici, 65: 157 - 169.", "Zhiltzova, L. A. 2003. Plecoptera Gruppe Euholognatha. Fauna of Russia and Neighbouring Countries, Insecta Plecoptera, 1 (1): 537 + 7 unnumbered pages; Russian Academy of Sciences, Zoological Institute, St. Petersburg, Nauka, in Russian."]}
Reversibly tuning the insulating and superconducting state in KxFe2-ySe2 crystals by post-annealing
Creators: name: Han, Fei
name: Shen, Bing
name: Wang, Zhen-Yu
name: Wen, Hai-Hu
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Since the discovery of superconductivity at 26 K in oxy-pnictide LaFeAsO1-xFx, enormous interests have been stimulated in the field of condensed matter physics and material sciences. Among the many kind of structures in the iron pnictide superconductors, FeSe with the PbO structure has received special attention since there is not poisonous pnictogen element in chemical composition and its structure is the simplest one. However, the superconducting transition temperature (Tc) in iron chalcogenide compounds is not enhanced as high as other iron pnictide superconductors under ambient pressure until the superconductivity at above 30 K in potassium intercalated iron selenide KxFe2-ySe2 was discovered. The insulating and the superconducting state are both observed in KxFe2-ySe2 with different stoichiometries and some groups have tuned the system from insulating to superconducting state by varying the ratio of starting materials[10, 11]. The recent data from neutron scattering suggest that the superconductivity may be built upon an ordered state of Fe vacancies as well as the antiferromagnetic state with a very strong ordered magnetic moment 3.4 B. Here we show that the superconductivity can actually be tuned on a single sample directly from an insulating state by post-annealing and fast quenching. Upon waiting for some days at room temperatures, the superconductivity will disappear and the resistivity exhibits an insulating behavior again. The spatial distribution of the compositions of the as-grown sample and the post-annealed-quenched one was analyzed by the Energy Dispersive X-ray Spectrum (EDXS) and found to be very close to each other. Therefore it is tempting to conclude that the superconductivity is achieved when the Fe-vacancies are in a random (disordered) state. Once they arrange in an ordered state by relaxation or slow cooling, the system turns out to be an insulator.
description: 12 pages,5 figures