cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Removal of polycyclic aromatic hydrocarbons from deionized water and landfill leachate by using modified clinoptilolites
Creators: name: Hedayati, Monirehsadat
Publisher: name: University of British Columbia
Year: 2018

description: Polycyclic aromatic hydrocarbons (PAHs) are toxic, carcinogenic, and persistent in the environment. Clinoptilolite, a type of natural zeolite, was modified with cetylpridinium chloride (CPC), didodecyldimethylammonium bromide (DDAB), hexadecyltrimethylammonium bromide (HDTMA-Br), and tetramethylammonium chloride (TMA) separately as potential adsorbents for removal of PAHs. Leachability and thermal stability of modified clinoptilolites were investigated. Adsorption capacity, kinetics, sorbent dosage, pH, temperature, and competition effects were studied adopting batch adsorption tests using deionized water spiked with five PAHs (anthracene (50 µg/L), fluoranthene (100 µg/L), fluorene (100 µg/L), phenanthrene (100 µg/L), and pyrene (100 µg/L)). The leachability and thermal stability results indicated that CPC and DDAB modified clinoptilolites were less leachable and more stable compared to HDTMA modified clinoptilolites. The non-modified clinoptilolite, and TMA modified clinoptilolite exhibited <66 % PAH removals from water solution. However, CPC, DDAB, and HDTMA modified clinoptilolites retained >93 % of five PAHs after 24 hours at 1:100 solid: liquid ratio and met the local water quality criteria, except for fluorene on HDTMA modified clinoptilolite which retained >83%. For CPC and DDAB modified clinoptilolites, more than 80% of all PAHs were retained within 15 minutes and maximum adsorption was reached in < 2 hours. Three kinetic models were applied using pseudo-first, pseudo-second-order, and intra particle equations, and the results are well represented by the pseudo-second-order equation. With a 1:200 solid: liquid ratio, the removal of anthracene, fluoranthene, and pyrene were above 90, 80, and 70 % on CPC, DDAB, and HDTMA modified clinoptilolites, respectively. After performing 21 successive batch adsorption tests on CPC, DDAB, and HDTMA modified clinoptilolites, the PAHs had accumulated about 0.7 to 1.5 mg per gram of clinoptilolite. PAH leachabilities from these loaded PAHs were less than 5% after conducting a stability test. Different pH values and temperatures have insignificant effects on adsorption of PAHs, except for fluorene. Different pH values changed the adsorption of fluorene only slightly on HDTMA modified clinoptilolite. When temperature was increased, fluorene adsorption was decreased by <13% on modified clinoptilolites. CPC and DDAB modified clinoptilolites, were able to remove all five PAHs efficiently (>95%) from landfill leachate spiked with PAHs.
Designing novel epitope-based polyvalent vaccines against herpes simplex virus-1 and 2 exploiting the immunoinformatics approach
Creators: name: Sarkar, Bishajit
name: Ullah, Md. Asad
name: Araf, Yusha
name: Das, Sowmen
name: Rahman, Md. Hasanur
name: Abu Tayab Moin
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Herpes Simplex Virus (HSV) is a highly infectious virus that is responsible for various types of orofacial and genital infections. Two types of HSV exist i.e. HSV-1 and HSV-2, that are infecting millions of people around the world. However, no satisfactory treatment or counter-measure has yet been discovered to fight against the HSV infections. In this study, three possible polyvalent subunit vaccines against multiple strains of HSV-1 and HSV-2, targeting the envelope glycoproteins- E, B, and D, were designed using the tools of reverse vaccinology and immunoinformatics. The highly antigenic, non-allergenic, non-toxic, non-homolog (to the human proteome), and 100% conserved epitopes across the selected strains and species (eight epitopes from each of the CTL, HTL, and BCL epitope groups), were selected for vaccine construction. These designed vaccines are expected to be effective against the selected viral types simultaneously (as a polyvalent vaccine), without producing any unwanted adverse reaction within the body. Finally, from the three vaccine constructs, one best vaccine was determined by molecular docking analysis and thereafter, the MD simulation and immune simulation studies of the best vaccine construct also yielded satisfactory results, pointing towards quite good stability of the complex. Finally, in silico cloning was performed for analyzing the effective mass production strategy of the best vaccine construct. However, wet lab-based study should be conducted on the suggested vaccines for validating their potentiality, safety, and efficacy. Communicated by Ramaswamy H. Sarma
Widespread use of artificial habitats by shorebirds in Australia
Creators: name: Jackson, Micha V.
name: Woodworth, Bradley K.
name: Bush, Robert
name: Clemens, Robert S.
name: Fuller, Richard A.
name: Garnett, Stephen T.
name: Lilleyman, Amanda
name: Maron, Martine
name: Purnell, Chris
name: Rogers, Danny I.
name: Amano, Tatsuya
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Computational Biology

description: Shorebirds in the East Asian-Australasian Flyway have experienced population declines linked to loss of coastal wetlands. Despite this vulnerability to habitat loss, shorebirds regularly use artificial habitats, especially for high-tide roosting. Understanding the distribution of shorebirds in artificial versus natural roosts could inform habitat management strategies aimed at population recovery. We analysed time-series of high-tide shorebird monitoring data from five developed regions of Australia where artificial habitat use has previously been documented and made three key discoveries. First, artificial habitat use was generally high across the regions, with >50% of the average proportion of the regional population of 39 of 75 species-region combinations (52%) using artificial habitats at high tide. Second, in 84% of species-region combinations the average proportion of birds that used artificial habitats from the time of their establishment onward did not show a significant temporal trend. Third, migratory and coastal specialist species showed lower proportional artificial habitat use than non-migratory and generalist/inland specialist species. These findings showing consistent, widespread use of artificial habitats by large shorebird aggregations at high tide suggest that a framework for high-tide habitat management that includes artificial habitats alongside preservation of remaining natural habitats could make a significant contribution to shorebird conservation in Australia.
D4.5 Retrofitability study for CO2 capture technologies in cement plants
Creators: name: Hoppe, Helmut
name: Hoenig, Volker
name: Ruppert, Johannes
name: Berstad, David
name: Romano, Matteo
name: Sutter, David
name: Voldsund, Mari
Publisher: name: Zenodo
Year: 2018
Subjects: CO2
Carbon capture
Cement industry
Oxyfuel
Calcium looping
Chilled ammonia
Membrane-assisted liquefaction
MEA process
Retrofitability

description: This document provides a comparative study of the retrofitability of different CO2 capture technologies which have been investigated within the framework of the CEMCAP project. Different criteria have been defined for a qualitative assessment of the retrofitability, e.g. the impact on the cement production process, the required equipment and associated footprint, additional utilities and services, the requirement of new chemicals or other substances and the existing operational experiences with the individual capture technology. The assessment of the retrofitability of the individual capture technologies was carried out with a color coding system. Only technical aspects have been taken into account, whereas economic assessments have been carried out in other work packages. The retrofitability of capture technologies is an important issue as the implementation of CCS in the cement sector will predominantly be carried out at existing kiln lines.
description: This work was supported by the Swiss State Secretariat for Education, Research and Innovation (SERI)
under contract number 15.0160
The Ubiquity and Dual Nature of Ultra Compact Dwarfs
Creators: name: Norris, Mark A.
name: Kannappan, Sheila J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the discovery of several Ultra Compact Dwarfs (UCDs) located in field/group environments. Examination of these objects, plus literature objects, confirms the existence of two distinct formation channels for UCDs. We find that the UCDs we have discovered around the group elliptical NGC3923 (and UCDs generally) have properties consistent with their being the most luminous members of the host galaxy's globular cluster (GC) system. We describe UCDs of this type as giant GCs (GGCs). In contrast, the UCD we have found associated with the isolated S0 NGC4546 is clearly the result of the stripping of a nucleated companion galaxy. The young age (~3.4 Gyr) of the UCD, the lack of a correspondingly young GC population, the apparently short dynamical friction decay timescale (~0.5 Gyr) of the UCD, and the presence of a counterrotating gas disc in the host galaxy (co-rotating with the UCD) together suggest that this UCD is the liberated nucleus remaining after the recent stripping of a companion by NGC4546. We suggest a general scheme that unifies the formation of GCs, UCDs, and galaxy nuclei. In this picture "normal" GCs are a composite population, composed of GCs formed in situ, GCs acquired from accreted galaxies, and a population of lower mass stripped dwarf nuclei masquerading as GCs. Above a "scaling onset mass" of 2x10^6 Msun (Mv ~ -10), UCDs emerge together with a mass-size relation and a likely mass-metallicity relation (the "blue tilt"). In the mass range up to 7x10^7 Msun (Mv ~ -13) UCDs comprise a composite population of GGCs and stripped nuclei. Above 7x10^7 Msun, UCDs must be almost exclusively stripped nuclei, as no sufficiently rich GC systems exist to populate such an extreme of the GCLF.
description: 23 pages, 16 figures, accepted for publication in MNRAS
In silico identification of widely used and well-tolerated drugs as potential SARS-CoV-2 3C-like protease and viral RNA-dependent RNA polymerase inhibitors for direct use in clinical trials
Creators: name: Gul, Seref
name: Ozcan, Onur
name: Asar, Sinan
name: Okyar, Alper
name: Barıs, Ibrahim
name: Kavakli, Ibrahim Halil
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases
subject: 60506 Virology

description: Despite strict measures taken by many countries, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) continues to be an issue of global concern. Currently, there are no clinically proven pharmacotherapies for coronavirus disease 2019, despite promising initial results obtained from drugs such as azithromycin and hydroxychloroquine. Therefore, the repurposing of clinically approved drugs for use against SARS-CoV-2 has become a viable strategy. Here, we searched for drugs that target SARS-CoV-2 3C-like protease (3CLpro) and viral RNA-dependent RNA polymerase (RdRp) by in silico screening of the U.S. Food and Drug Administration approved drug library. Well-tolerated and widely used drugs were selected for molecular dynamics (MD) simulations to evaluate drug-protein interactions and their persistence under physiological conditions. Tetracycline, dihydroergotamine, ergotamine, dutasteride, nelfinavir, and paliperidone formed stable interactions with 3CLpro based on MD simulation results. Similar analysis with RdRp showed that eltrombopag, tipranavir, ergotamine, and conivaptan bound to the enzyme with high binding free energies. Docking results suggest that ergotamine, dihydroergotamine, bromocriptine, dutasteride, conivaptan, paliperidone, and tipranavir can bind to both enzymes with high affinity. As these drugs are well tolerated, cost-effective, and widely used, our study suggests that they could potentially to be used in clinical trials for the treatment of SARS-CoV-2-infected patients. Communicated by Ramaswamy H. Sarma
Stochastic dynamical systems with weak contractivity properties (with a chapter featuring results of Martin Benda)
Creators: name: Peigné, Marc
name: Woess, Wolfgang
Publisher: name: arXiv
Year: 2010
Subjects: subject: Probability (math.PR)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 60G50, 60J05, 37Hxx

description: Consider a proper metric space X and a sequence of i.i.d. random continuous mappings F_n from X to X. It induces the stochastic dynamical system (SDS) X_n^x = F_n(X_{n-1}^x) starting at x in X. In this paper, we study existence and uniqueness of invariant measures, as well as recurrence and ergodicity of this process. In the first part, we elaborate, improve and complete the unpublished work of Martin Benda on local contractivity, which merits publicity and provides an important tool for studying stochastic iterations. We consider the case when the F_n are contractions and, in particular, discuss recurrence criteria and their sharpness for reflected random walk. In the second part, we consider the case where the F_n are Lipschitz mappings. The main results concern the case when the associated Lipschitz constants are log-centered. Prinicpal tools are the Chacon-Ornstein theorem and a hyperbolic extension of the space X as well as the process (X_n^x). The results are applied to the reflected affine stochastic recursion on the non-negative half-line.
Römischer auch zu Hungern und Behem &c. Ku. Mai. Zinbergkwercks Ordnung auff die Bergkwerck Dengst, Perninger, Lichtenstadt, Platten, Gotsgab, Raff, Mückenbergk und andern derselbigen Orten und Enden
Creators: name: Bohemia (Kingdom)
Publisher: name: Zwickaw : Wolffgang Meyerpeck
Year: 2014

description: Royal coat of arms on title page. Ornamented initials, head- and tailpieces.
Conformal Higgs, or techni-dilaton- composite Higgs near conformality
Creators: name: Yamawaki, Koichi
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In contrast to the folklore that Technicolor (TC) is a "Higgsless theory", we shall discuss existence of a composite Higgs boson, Techni-Dilaton (TD), a pseudo-Nambu-Goldstone boson of the scale invariance in the Scale-invariant/Walking/Conformal TC (SWC TC) which generates a large anomalous dimension $γ_m \simeq 1$ in a wide region from the dynamical mass $m$ $= {\cal O}$ (TeV) of the techni-fermion all the way up to the intrinsic scale $Λ_{\rm TC}$ of the SWC TC (analogue of $Λ_{\rm QCD}$), where $Λ_{\rm TC} $ is taken typically as the scale of the Extended TC scale $Λ_{\rm ETC}$: $Λ_{\rm TC} \simeq Λ_{\rm ETC}\sim10^3$ TeV $ (\gg m)$. All the techni-hadrons have mass on the same order ${\cal O} (m)$, which in SWC TC is extremely smaller than the intrinsic scale $Λ_{\rm TC} \simeq Λ_{\rm ETC} $, in sharp contrast to QCD where both are of the same order. The mass of TD arises from the {\it non-perturbative scale anomaly} associated with the techni-fermion mass generation and is typically 500-600 GeV, even {\it smaller than other techni-hadrons} of the same order of ${\cal O} (m)$, in another contrast to QCD which is believed to have no scalar $\bar q q$ bound state lighter than other hadrons. We discuss the TD mass in various methods, Gauged NJL model via ladder Schwinger-Dyson (SD) equation, straightforward calculations in the ladder SD/ Bethe-Salpeter equation, and the holographic approach including techni-gluon condensate. The TD may be discovered in LHC.
description: 17 pages, 3 figures, to be published in Proceedings of 2009 Nagoya Global COE Workshop "Strong Coupling Gauge Theories in LHC Era" in Honor of Toshihide Maskawa's 70th Birthday and 35th Anniversary of Dynamical Symmetry Breaking in SCGT (SCGT 09), Dec. 8-11, 2009, Nagoya University, Nagoya 464-8602, Japan (World Scientific Co., Singapore)
Transport properties of molecular junctions from many-body perturbation theory
Creators: name: Rangel, T.
name: Ferretti, A.
name: Trevisanutto, P. E.
name: Olevano, V.
name: Rignanese, G. -M.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The conductance of single molecule junctions is calculated using a Landauer approach combined to many-body perturbation theory MBPT) to account for electron correlation. The mere correction of the density-functional theory eigenvalues, which is the standard procedure for quasiparticle calculations within MBPT, is found not to affect noticeably the zero-bias conductance. To reduce it and so improve the agreement with the experiments, the wavefunctions also need to be updated by including the non-diagonal elements of the self-energy operator.
Song variation between sexes and among subspecies of New Zealand Fantail (Rhipidura fuliginosa)
Creators: name: Heaphy, Kate
name: Cain, Kristal
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Variation in bird song occurs at many levels, including between sexes and among geographic regions. Variation can be due to differences in function, habitat, selection or drift. Quantifying when and where such differences occur provides insight into which of these drivers is most likely. Here we examine song variation, (a) between sexes and (b) among the three geographically isolated subspecies, of the New Zealand Fantail (Rhipidura fuliginosa), a monomorphic passerine native to New Zealand. We measured twelve temporal and frequency parameters from recorded songs based on buzz notes. Only maximum frequency in one of the three phrases showed a significant sex difference, although there were suggestions of other sex differences in some element-level parameters. Song characteristics differed notably among subspecies; North Island Fantails typically produced shorter songs, comprised shorter elements at higher frequencies and faster element rates, while the most isolated birds (Chatham Island population), sang longer, slower songs. South Island birds were intermediate and more variable. The similarity of male and female songs suggests song is used by both sexes for similar purposes, while selection pressures associated with different habitats or cultural drift may be responsible for the song differences observed among sub-species. Further research analysing vocalisations of both sexes across a broader geographical range is required to further our understanding of female song function and patterns of geographic variation.
Examining school day dietary quality : an analysis of national dietary data from the 2004 and 2015 Canadian Community Health Surveys
Creators: name: Tugault-Lafleur, Claire
Publisher: name: University of British Columbia
Year: 2018

description: Schools have the potential to contribute to obesity prevention by promoting healthy eating and physical activity. Since 2004, ten Canadian provinces have created policies regarding foods and beverages that can be offered in schools, yet little is known about what Canadian children eat and drink at school, the sources of the foods and beverages consumed, and how children’s dietary quality has changed, if at all, over the last decade. Drawing from nationally representative dietary surveys, this thesis includes three studies aimed at filling knowledge gaps regarding Canadian children’s dietary quality on school days. The first study characterised the dietary contributions of foods consumed during school hours relative to the overall diet, and sociodemographic factors associated with school hour dietary quality. In 2004, children age 6-17 years consumed approximately one-third of their daily calories during school hours, but energy-adjusted intake of milk products and key nutrients (for example, calcium and vitamin D) was relatively lower during school hours compared to non-school hours. Meanwhile, the school hour contribution from minimally nutritious foods was higher than the average school hour energy contribution. Differences in diet quality scores were poorly explained by sociodemographic factors, although school hour dietary quality differed by age group and province of residence. The second study evaluated associations between lunch-time food source and children’s dietary quality. In 2004, 73% of children reported bringing lunch from home, with few students obtaining lunch off-campus or at school. Children consuming foods from home had more favourable nutrient intake profiles compared to children obtaining foods off-campus. However, regardless of lunch-time food source, the quality of foods consumed was, on average, sub-optimal in relation to national dietary guidance. The third study assessed changes in dietary quality of Canadian children from 2004 to 2015. Average self-reported dietary quality of Canadian children during school hours and on school days improved modestly but remained below national dietary standards. More effective efforts are needed to improve Canadian children’s dietary quality. Initiatives that focus on increasing the consumption of vegetables, whole fruit, whole grains and dairy products have the potential to improve Canadian children’s dietary quality.
Is there sexual segregation in habitat selection by Black-browed Albatrosses wintering in the south-west Atlantic?
Creators: name: Paz, Jesica Andrea
name: Pon, Juan Pablo Seco
name: Krüger, Lucas
name: Favero, Marco
name: Copello, Sofía
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Marine Biology

description: Sexual segregation in habitat use occurs when sexes differ in their use of the physical environment and is widely reported among seabirds. The Black-browed Albatross (Thalassarche melanophris) is one of the most abundant seabird species in the south-west Atlantic, but whether the sexes differ in their habitat selection during winter remains unknown. Here, we tested for sexual segregation in adult and immature Black-browed Albatrosses during winter. Movement data from 21 satellite-tracked Black-browed Albatrosses across the south-west Atlantic Ocean between 2011 and 2015 were used to determine suitable foraging habitat for males (n = 7) and females (n = 14) using habitat selection models. Sexual segregation was then assessed using an index of niche overlap for immature and adult age classes. Variables with the highest importance in habitat selection models across all groups were depth and sea surface temperature. The highest probabilities of occurrence were in shallow waters and intermediate surface temperatures. No sexual segregation was found which may be because of the large abundance of prey in the region and moderate energy requirements during the non-breeding season. These results are relevant for spatially explicit conservation management in this region, including the designation of marine protected areas. Indeed, bycatch in fisheries is a major threat to seabirds in this area, and foraging behaviour and performance in winter of this keystone species will influence their future reproductive performance.
The Critical Magnetic Field of Anisotropic Two-Band Magnetic Superconductors
Creators: name: Changjan, A.
name: Udomsamuthirun, P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The upper and lower critical field, and the critical field ratio of an anisotropic two-band magnetic superconductors in Ginzburg-Landau(GL) scenery is derived analytically. The temperature-dependent on the upper critical field is investigated and applied to Fe-based superconductors. We find that the very high value of zero-temperature upper critical field in Fe-based superconductors can be found in the negative differential susceptibility region. The temperature-dependent upper critical field is presented in two formulas as in the empirical view and in the GL two-band view that agrees with the experiment results.
description: 14 pages, 3 figures,accepted by Solid state communication
Thermodynamic Properties of the Kagome Lattice in Volborthite
Creators: name: Yamashita, Satoshi
name: Moriura, Tomoya
name: Nakazawa, Yasuhiro
name: Yoshida, Hiroyuki
name: Okamoto, Yoshihiko
name: Hiroi, Zenji
Publisher: name: arXiv
Year: 2010
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Thermodynamic investigations on volborthite (Cu3V2O7(OH)2 2H2O), which possesses a two-dimensional kagome structure of S-1/2 spins, are presented. The low-temperature heat capacities of volborthite and its Zn analogue compound were measured by the relaxation calorimetry technique between 0.8 and 45 K. The magnetic heat capacity of volborthite is characterized by two contributions of T-linear and T2 dependences, the former of which is large above 1 K, giving evidence of dense gapless excitations. We find a distinct kink in Cp T-1 at T* = 1 K, which demonstrates a thermodynamic phase transition of short-range nature to a novel ground state as reported in previous 51V-NMR experiments. The T-linear term becomes smaller but remains finite even in the low-temperature state below T*, while it is gradually reduced with increasing magnetic field and vanishes at 5 T, which is close to the critical field for the field-induced transition observed in the first magnetization step.
description: 12 pages, 4 figures
On Quantum Markov Chains on Cayley tree II: Phase transitions for the associated chain with XY-model on the Cayley tree of order three
Creators: name: Accardi, Luigi
name: Mukhamedov, Farrukh
name: Saburov, Mansoor
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Functional Analysis (math.FA)
subject: Operator Algebras (math.OA)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 46L53, 60J99, 46L60, 60G50, 82B10, 81Q10, 94A17

description: In the present paper we study forward Quantum Markov Chains (QMC) defined on a Cayley tree. Using the tree structure of graphs, we give a construction of quantum Markov chains on a Cayley tree. By means of such constructions we prove the existence of a phase transition for the XY-model on a Cayley tree of order three in QMC scheme. By the phase transition we mean the existence of two now quasi equivalent QMC for the given family of interaction operators $\{K_{}\}$.
description: 34 pages, 1 figure
TCAD Simulation of Novel Semiconductor Devices with Nano-Electronic Simulation Software (NESS): a flexible nano-device simulation platform
Creators: name: Gergiev, Vihar P.
Publisher: name: Zenodo
Year: 2021
Subjects: TCAD
Compact Modeling

description: Simulation of conventional and emerging electronic devices using Technology Computer Aided Design (TCAD) tools has been an essential part of the semiconductor industry as well as academic research. Computational efficiency and accuracy of the numerical modeling are the key criteria on which quality and utility of a TCAD tool is ascertained. Further, the ability of the tool to incorporate different modeling paradigms and to be applicable to a wide range of device architectures and operating conditions is essential. In this talk, I will provide an overview of the new device simulator NESS (Nano-Electronic Software Simulator) developed at Device Modelling Group at University of Glasgow. NESS is a fast, modular software with its own structure and mesh generators, and contains different modules for classical, semi-classical, and quantum transport solvers, mobility calculation, kinetic Monte-Carlo etc. NESS can also account for various sources of statistical variability in nanodevices and it can run simulations for thousands of microscopically different devices created by the structure generator. This state-of-the-art tool is being made available to the device engineering community at large for active collaboration and development.
Partitioning of the linear photon momentum in multiphoton ionization
Creators: name: Smeenk, C
name: Arissian, L
name: Zhou, B
name: Mysyrowicz, A
name: Villeneuve, D M
name: Staudte, A
name: Corkum, P B
Publisher: name: arXiv
Year: 2011
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The balance of the linear photon momentum in multiphoton ionization is studied experimentally. In the experiment argon and neon atoms are singly ionized by circularly polarized laser pulses with a wavelength of 800 nm and 1400 nm in the intensity range of 10^{14} - 10^{15} W/cm^2. The photoelectrons are measured using velocity map imaging. We find that the photoelectrons carry linear momentum corresponding to the photons absorbed above the field free ionization threshold. Our finding has implications for concurrent models of the generation of terahertz radiation in filaments.
description: 4 pages, 3 figures
Design, Fabrication, and Experimental Demonstration of Junction Surface Ion Traps
Creators: name: Moehring, D. L.
name: Highstrete, C.
name: Stick, D.
name: Fortier, K. M.
name: Haltli, R.
name: Tigges, C.
name: Blain, M. G.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Physics (quant-ph)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We present the design, fabrication, and experimental implementation of surface ion traps with Y-shaped junctions. The traps are designed to minimize the pseudopotential variations in the junction region at the symmetric intersection of three linear segments. We experimentally demonstrate robust linear and junction shuttling with greater than one million round-trip shuttles without ion loss. By minimizing the direct line of sight between trapped ions and dielectric surfaces, negligible day-to-day and trap-to-trap variations are observed. In addition to high-fidelity single-ion shuttling, multiple-ion chains survive splitting, ion-position swapping, and recombining routines. The development of two-dimensional trapping structures is an important milestone for ion-trap quantum computing and quantum simulations.
description: 9 pages, 6 figures
D4.6 CEMCAP comparative techno-economic analysis of CO2 capture in cement plants
Creators: name: Voldsund, Mari
name: Anantharaman, Rahul
name: Berstad, David
name: De Lena, Edoardo
name: Fu, Chao
name: Gardarsdottir, Stefania Osk
name: Jamali, Armin
name: Pérez-Calvo, José-Francisco
name: Romano, Matteo
name: Roussanaly, Simon
name: Ruppert, Johannes
name: Stallmann, Olaf
name: Sutter, Daniel
Publisher: name: Zenodo
Year: 2019
Subjects: CO2 capture
CCS
Cement
Clinker
Kiln
Oxyfuel
Chilled ammonia process
Membrane
CO2 liquefaction
Calcium looping
Techno-economic assessment
SPECCA
Cost of clinker
Cost of CO2 avoided

description: In CEMCAP, four different CO2 capture technologies for cement plants are investigated: the oxyfuel technology, the chilled ammonia process, membrane-assisted CO2 liquefaction, and the calcium looping technology. This report presents a techno-economic evaluation of these technologies. Key performance indicators such as specific primary energy consumption for CO2 avoided (SPECCA), cost of clinker and cost of CO2 avoided are calculated. The calculations are based on process simulations, with input from experimental work carried out in the project. The SPECCA of the CEMCAP technologies are all lower than 60% of the reference technology (MEA) under the defined base case conditions. The cost of clinker increases with 49-92% compared to the cost of clinker without capture. The cost of CO2 avoided is between 42 €/tCO2 (oxyfuel process) which is approximately halved compared to MEA, and 84 €/tCO2 (MAL process), which is on the same level as MEA. The techno-economic KPIs are strongly dependent on factors such as steam source, electricity mix, electricity price, fuel price, etc. For the assessment of a CO2 capture technology for a specific plant, a more plant specific techno-economic evaluation should be performed.

Changes in revision 1

Information and reference on cost and climate impact of steam import is included in Section 4.5. Oxygen flow rates are corrected in Table 6.1. Figures 9.2 and 10.2 are revised. Some other minor revisions are made in the text.
description: This work was supported by the Swiss State Secretariat for Education, Research and Innovation (SERI)
under contract number 15.0160
An Efficient Network Coding based Retransmission Algorithm for Wireless Multicasts
Creators: name: Qureshi, Jalaluddin
name: Foh, Chuan Heng
name: Cai, Jianfei
Publisher: name: arXiv
Year: 2010
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Retransmission based on packet acknowledgement (ACK/NAK) is a fundamental error control technique employed in IEEE 802.11-2007 unicast network. However the 802.11-2007 standard falls short of proposing a reliable MAC-level recovery protocol for multicast frames. In this paper we propose a latency and bandwidth efficient coding algorithm based on the principles of network coding for retransmitting lost packets in a singlehop wireless multicast network and demonstrate its effectiveness over previously proposed network coding based retransmission algorithms.
description: 5 pages, 5 figures
TCAD as a tool for the interpretation of Terahertz Rectification in MOS-FET
Creators: name: Palma, Fabrizio
Publisher: name: Zenodo
Year: 2021
Subjects: TCAD
Compact Modelng

description: The literature shows an extended use of MOS-FET for the rectification of electromagnetic radiation at THz frequencies. This solution is indeed extremely attractive since it permits the use of common integrated circuit technology. However, obtaining a high-efficiency rectification device requires the assessment of a physical model capable of providing a qualitative and quantitative explanation of the processes involved. In this paper, we show how TCAD simulations, permits to achieve a completely new insight in the THz rectification, provides quantitative evaluation, and at the end provids an essential tool for designing this type of detector, and that Plasma wave detection theory, universally accepted for more than twenty years, is instead far from a real description of the phenomenon.
Study of neutrino interactions with the electronic detectors of the OPERA experiment
Creators: name: OPERA Collaboration
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The OPERA experiment is based on a hybrid technology combining electronic detectors and nuclear emulsions. OPERA collected muon-neutrino interactions during the 2008 and 2009 physics runs of the CNGS neutrino beam, produced at CERN with an energy range of about 5-35 GeV. A total of $5.3 \times 10^{19}$ protons on target equivalent luminosity has been analysed with the OPERA electronic detectors: scintillator strips target trackers and magnetic muon spectrometers equipped with resistive plate gas chambers and drift tubes, allowing a detailed reconstruction of muon-neutrino interactions. Charged Current (CC) and Neutral Current (NC) interactions are identified, using the measurements in the electronic detectors, and the NC/CC ratio is computed. The momentum distribution and the charge of the muon tracks produced in CC interactions are analysed. Calorimetric measurements of the visible energy are performed for both the CC and NC samples. For CC events the Bjorken-$y$ distribution and the hadronic shower profile are computed. The results are compared to a detailed Monte Carlo simulation of the electronic detectors' response.
description: 17 .eps files + 1 .tex file
Pulling together in the academic canoe : the experiences of indigenous doctoral students
Creators: name: Commodore, Heather Lynn
Publisher: name: University of British Columbia
Year: 2018

description: An area of research that has had little attention is the experiences of Indigenous doctoral students, told from their perspectives. This study offers an in-depth understanding of Indigenous doctoral students’ experiences related to admission and all program milestones during their enrollment in a Canadian research-intensive university. In this research 13 Indigenous doctoral students, most of whom were enrolled in the Faculty of Education doctoral programs at the University of British Columbia, shared their life experience stories about (a) how their web of relationships with family, community, peers, mentors, program structures, and university structures combined to support, guide, and assist them prior to and during their studies; (b) how they created community spaces to remain connected to their programs academically and socially; and (c) how they viewed tensions between their programmatic experiences and their community affiliations. For many Indigenous students, the doctoral journey does not occur in isolation, which is theorized through the lens of Kirkness and Barnhardts’ 4Rs, of Respect, Relevance, Reciprocity, and Responsibility (1991). The participants’ life experience stories were situated within Archibald’s (2008b) Indigenous Storywork methodology to safeguard the integrity of the stories’ meanings. I discovered that some Indigenous students found the higher education experience isolating and challenging, if not alienating, and did not feel that the university was a place for them. However, they also experienced success through creating community, maintaining their family and cultural connections, engaging in Indigenous peer-support and mentoring programs, and receiving respectful mentoring from faculty. University services and programs that provided a safe, culturally responsive environment for Indigenous doctoral students to flourish included the First Nations Longhouse; Supporting Aboriginal Graduate Enhancement, which is a peer support program; and an annual Indigenous Graduate Student Symposium. A contribution of this study is the extension of Kirkness and Barnhardt’s 4Rs to include Recognition, Reclamation, Redress, and Reconciliation. These additional 4Rs stem from the findings and emphasize the importance of doctoral studies for Indigenous students’ future leadership, policy, and self-determination contributions to their own communities and to Canadian society.
Principal Boundary on Riemannian Manifolds
Creators: name: Yao, Zhigang
name: Zhang, Zhenyue
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology
subject: Computational Biology

description: We consider the classification problem and focus on nonlinear methods for classification on manifolds. For multivariate datasets lying on an embedded nonlinear Riemannian manifold within the higher-dimensional ambient space, we aim to acquire a classification boundary for the classes with labels, using the intrinsic metric on the manifolds. Motivated by finding an optimal boundary between the two classes, we invent a novel approach—the principal boundary. From the perspective of classification, the principal boundary is defined as an optimal curve that moves in between the principal flows traced out from two classes of data, and at any point on the boundary, it maximizes the margin between the two classes. We estimate the boundary in quality with its direction, supervised by the two principal flows. We show that the principal boundary yields the usual decision boundary found by the support vector machine in the sense that locally, the two boundaries coincide. Some optimality and convergence properties of the random principal boundary and its population counterpart are also shown. We illustrate how to find, use, and interpret the principal boundary with an application in real data. Supplementary materials for this article are available online.
Importance sampling for Lambda-coalescents in the infinitely many sites model
Creators: name: Birkner, Matthias
name: Blath, Jochen
name: Steinruecken, Matthias
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: 62F99 (Primary) 62P10, 92D10, 92D20 (Secondary)

description: We present and discuss new importance sampling schemes for the approximate computation of the sample probability of observed genetic types in the infinitely many sites model from population genetics. More specifically, we extend the 'classical framework', where genealogies are assumed to be governed by Kingman's coalescent, to the more general class of Lambda-coalescents and develop further Hobolth et. al.'s (2008) idea of deriving importance sampling schemes based on 'compressed genetrees'. The resulting schemes extend earlier work by Griffiths and Tavaré (1994), Stephens and Donnelly (2000), Birkner and Blath (2008) and Hobolth et. al. (2008). We conclude with a performance comparison of classical and new schemes for Beta- and Kingman coalescents.
description: (38 pages, 40 figures)
Digital Humanities in de KB
Creators: name: Wilms, Lotte
name: Claeyssens, Steven
Publisher: name: Zenodo
Year: 2019
Subjects: digital scholarship

description: Presentatie over de digital humanities werkzaamheden van de KB Nationale Bibliotheek, gegeven tijdens de eerste avond van de Digital Humanities cursus georganiseerd door het Nationaal Archief.
THE SPIRITUAL AND PHILOSOPHICAL ESSENCE OF SUFI OLLOYAR'S LIFE
Creators: name: Karshiev Islam Egamkulovich, Teacher of the ZhDU
Publisher: name: Zenodo
Year: 2025

description: This article discusses the life of Sufi Alloyar, her valuable works, their essence, and their influence on the thoughts and worldview of young people .

Keywords : Famous, mystic, coincidence, perfection, aspiration, enlightenment, deep-minded, conflict
Poor man's derivation of the Bethe-Ansatz equations for the Dicke model
Creators: name: Tsyplyatyev, Oleksandr
name: von Delft, Jan
name: Loss, Daniel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We present an elementary derivation of the exact solution (Bethe-Ansatz equations) of the Dicke model, using only commutation relations and an informed Ansatz for the structure of its eigenstates.
description: 2 pages
Self-trapping nature of Tl nanoclusters on Si(111)-7$\times$7 surface
Creators: name: Hwang, Choongyu
name: Kim, Namdong
name: Lee, Geunsik
name: Shin, Sunyoung
name: Kim, Jaisam
name: Chung, Jinwook
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have investigated electronic and structural properties of thallium (Tl) nanoclusters formed on the Si(111)-7$\times$7 surface at room temperature (RT) by utilizing photoemission spectroscopy (PES) and high-resolution electron-energy-loss spectroscopy (HREELS) combined with first principles calculations. Our PES data show that the state S2 stemming from Si restatoms remains quite inert with Tl coverage $θ$ while S1 from Si adatoms gradually changes, in sharp contrast with the rapidly decaying states of Na or Li nanoclusters. No Tl-induced surface state is observed until $θ$=0.21 ML where Tl nanoclusters completely cover the faulted half unit cells (FHUCs) of the surface. These spectral behaviors of surface states and a unique loss peak L$_2$ associated with Tl in HREELS spectra indicate no strong Si-Tl bonding and are well understood in terms of gradual filling of Si dangling bonds with increasing $θ$. Our calculational results further reveal that there are several metastable atomic structures for Tl nanoclusters at RT transforming from each other faster than 10$^{10}$ flippings per second. We thus conclude that the highly mobile Tl atoms form self-trapped nanoclusters within FHUC at RT with several metastable phases. The mobile and multi-phased nature of Tl nanoclusters not only account for all the existing experimental observations including the fuzzy scanning tunneling microscope images and a dynamical model proposed by recent x-ray study but also provides an example of self-trapping of atoms in a nanometer-scale region.
description: 8 pages and 7 figures