cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Use of Coordination Chemistry Principles to Control Aggregation Processes of Metal Ions
Creators: name: Nayak, Sanjit
Publisher: name: Karlsruhe
Year: 2008
Subjects: Coordination chemistry
molecule-based magnets
single-molecule magnet
cluster
polyol
single-chain magnet
biomineralization
polycarboxylate

description: The research presented in this thesis is based on the use coordination chemistry principles to control aggregation process of metal ions. Two important areas, which are currently being intensely researched, were chosen. Firstly, controlled aggregation of paramagnetic metal ions to produce cooperatively coupled molecule-based magnets was studied. In Chapter 3, the potential ways of producing single-molecule magnets (SMMs) using polyols as ligands and manganese and iron ions as the paramagnetic centers were investigated. SMMs are molecules which can store magnetic information, which requires both uniaxial anisotropy and non-zero overall spin. In contrast to most Mn and Fe clusters reported in the literature, it was found that the polyols tend to favor the formation of regular polyhedral arrangements of the metal ions. In Chapter 4 one polyol was chosen in order to survey the properties of a family of lanthanide chain compounds. Here the aim was to discover whether single-chain magnets, SCMs, based on 4f metals could be produced. In order to produce the chains, benzoate was employed to provide bridges. The 4f metal ions were chosen because of their inherent spins and anisotropies. As is becoming increasingly clear from the literature, DyIII seems to be the most promising choice for attaining exotic magnetic properties. The second area of study chosen aimed to investigate the utility of using the sort of small ligand molecules usually employed in constructing coordination compounds to mimic biomineralization processes. Biominerals are minerals utilized by biological systems to fulfill a variety of functions, and thus can be described as functional materials. Their specific shapes, phases and functions result in the majority of cases through the interaction of complicated, templating biomolecules, such as polysaccharides or proteins, with the growing surfaces of the minerals. Most research aiming to reproduce the fascinating shapes and properties of such materials in vitro uses correspondingly complicated templating molecules and systems, such as block copolymers, Langmuir-Blodgett films and inverse micelles. Previous research in our group using a simple polycarboxylate demonstrated that highly complex calcium carbonate structure could be produced such as micro-trumpets constructed from bundles of high-aspect ratio nanocrystallites. In Chapter 5 the formation of these structures was investigated further as well as the influence of some rigid polycarboxylates on calcium carbonate structures. In all cases, these additives appear to stabilize an initial phase of amorphous calcium carbonate which then evolves into one of the three crystalline phases of calcium carbonate in a range of topologies.
Inverse Mapping of Polarised Optical Emission from Pulsars : Basic Formulation and Determination of Emission Altitude
Creators: name: Donald, John Mc
name: Connor, Padraig O'
name: de Burca, Dairmaid
name: Golden, Aaron
name: Shearer, Andy
Publisher: name: arXiv
Year: 2011
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present an inverse mapping approach to determining the emission height of the optical photons from pulsars, which is directly constrained by empirical data. The model discussed is for the case of the Crab pulsar. Our method, using the optical Stokes parameters, determines the most likely geometry for emission including magnetic field inclination angle ($α$), observers line of sight angle ($χ$) and emission height. We discuss the computational implementation of the approach, along with any physical assumptions made. We find that the most likely emission altitude is at 20% of the light cylinder radius above the stellar surface, in the open field region. We also present a general treatment of the expected polarisation from synchrotron source with a truncated power law spectrum of particles.
description: 17 pages 16 figures; accepted for publication in MNRAS
Supplementary material to: Familiarity breeds success: pairs that meet earlier experience increased breeding performance in a wild bird population
Creators: name: Culina, Antica
name: Firth, Josh A.
name: Hinde, Camilla A.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Consists of: I) Additional analysis on the meeting time II) Additional sensitivity analysis regarding meeting time and bond strength III) Meta – analysis on the correlation between breeding success before divorce and divorce IV) Supplementray figures V) Supplementary tables
CPT-violating effects in muon decay
Creators: name: Hollenberg, Sebastian
name: Pal, Palash B.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider low-energy CPT-violating modifications in charged current weak interactions and analyze possible ramifications in muon and antimuon decays. We calculate the lifetime of muon and antimuon with these modifications, and from the result, put bounds on the CPT-violating parameters. Moreover, we elaborate on the muon and antimuon decay rate differentials in electron energy and spatial angle, which entail interesting phenomenological consequences presenting new ways to constrain CPT violation in charged lepton decays.
description: 6 pages
Blood biomarker panels of the late phase asthmatic response
Creators: name: Singh, Amritpal
Publisher: name: University of British Columbia
Year: 2018

description: Individuals with allergic asthma respond differently, but reproducibly, to allergen inhalation challenge. Some individuals develop an early response only (isolated early responders, ERs) while others also go on to develop a late response (dual responders, DRs). The early asthmatic response is characterized by acute airway contraction immediately following allergen inhalation and resolves within 1-3 hours. 60% of asthmatic individuals go on to develop a late asthmatic response that occurs 3-4 hours after allergen inhalation and is characterized by prolonged airway contraction, cellular infiltration of the airways, chronic inflammation, and airway remodeling. It is not understood why late responses do not develop in all sensitized individuals. In this thesis, I combined the power of the allergen inhalation challenge model to study airway responses with unbiased high throughput technologies and data driven computational methods to delineate molecular differences between ERs and DRs using peripheral blood. I identified many markers that discriminated ERs and DRs such as fibronectin, many pro-inflammatory, anti-inflammatory and cell-specific genes, lipid metabolites and amino acids and the T helper type 17 to T regulatory cell (Th17/Treg) ratio. Transcriptional biomarker panels performed well (AUC ~70%) in predicting at risk/susceptible individuals for the late phase asthmatic response prior to allergen challenge. These panels depicted a heightened pro-inflammatory (activation of nuclear factor (NF)-B signaling) and dampened anti-inflammatory (reduced expression of decoy and formyl peptide receptors which are involved in host response to pathogens) phenotype in DRs compared to ERs. I developed a statistical method which I used to identify multi-omic biomarker panels (cells, gene transcripts and metabolites). The identified panels achieved a systems view of the underlying molecular interactions highlighting common pathways such as lipid metabolism and valine, leucine and isoleucine metabolism across different biological compartments. I demonstrated that inherent molecular differences in blood exist between ERs and DRs suggesting that some asthmatic individuals display early systemic indications of chronic asthma. These findings may be used to develop blood tests to risk-stratify subjects to improve response to therapies, and may lead to earlier and accurate diagnoses.
Modellgetriebene Entwicklung überwachter Webservice-Kompositionen
Creators: name: Momm, Christof
Publisher: name: Karlsruhe
Year: 2009
Subjects: Webservice-Komposition
Modellgetriebene Entwicklung
Geschäftsperformanzmanagement
SLA-Management

description: Ziel der Arbeit ist es, existierende Ansätze für die Entwicklung von WS-Kompositionen dahingehend zu ergänzen, dass die Überwachungsbelange zielgerichtet und effizient berücksichtigt werden können. Die Prinzipien der modellgetriebenen Softwareentwicklung werden dazu genutzt, um (1) eine plattformunabhängige Spezifikation der Belange und (2) eine vollständig automatisierte Überführung dieser Spezifikation in lauffähige Implementierungen zu ermöglichen.
Line arrangements and direct sums of free groups
Creators: name: Williams, Kristopher
Publisher: name: arXiv
Year: 2010
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 52C30 (Primary) 32S22, 14F35 (Secondary)

description: We show that if the fundamental groups of the complements of two line arrangements in the complex projective plane are isomorphic to the same direct sum of free groups, then the complements of the arrangements are homotopy equivalent. For any such arrangement, we construct another arrangement that is complexified-real, the intersection lattices of the arrangements are isomorphic, and the complements of the arrangements are diffeomorphic.
description: 15 pages, 4 figures
Rank probabilities for real random $N\times N\times 2$ tensors
Creators: name: Bergqvist, G.
name: Forrester, P. J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Probability (math.PR)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 15A69, 15B52, 60B20

description: We prove that the probability $P_N$ for a real random Gaussian $N\times N\times 2$ tensor to be of real rank $N$ is $P_N=(Γ((N+1)/2))^N/G(N+1)$, where $Γ(x)$, $G(x)$ denote the gamma and Barnes $G$-functions respectively. This is a rational number for $N$ odd and a rational number multiplied by $π^{N/2}$ for $N$ even. The probability to be of rank $N+1$ is $1-P_N$. The proof makes use of recent results on the probability of having $k$ real generalized eigenvalues for real random Gaussian $N\times N$ matrices. We also prove that $\log P_N= (N^2/4)\log (e/4)+(\log N-1)/12-ζ'(-1)+{\rm O}(1/N)$ for large $N$, where $ζ$ is the Riemann zeta function.
description: 8 pages
Observation of isotonic symmetry for enhanced quadrupole collectivity in neutron-rich 62,64,66Fe isotopes at N=40
Creators: name: Rother, W.
name: Dewald, A.
name: Iwasaki, H.
name: Lenzi, S. M.
name: Starosta, K.
name: Bazin, D.
name: Baugher, T.
name: Brown, B. A.
name: Crawford, H. L.
name: Fransen, C.
name: Gade, A.
name: Ginter, T. N.
name: Glasmacher, T.
name: Grinyer, G. F.
name: Hackstein, M.
name: Ilie, G.
name: Jolie, J.
name: McDaniel, S.
name: Miller, D.
name: Petkov, P.
name: Pissulla, Th.
name: Ratkiewicz, A.
name: Ur, C. A.
name: Voss, P.
name: Walsh, K. A.
name: Weisshaar, D.
name: Zell, K. -O.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The transition rates for the 2_{1}^{+} states in 62,64,66Fe were studied using the Recoil Distance Doppler-Shift technique applied to projectile Coulomb excitation reactions. The deduced E2 strengths illustrate the enhanced collectivity of the neutron-rich Fe isotopes up to N=40. The results are interpreted by the generalized concept of valence proton symmetry which describes the evolution of nuclear structure around N=40 as governed by the number of valence protons with respect to Z~30. The deformation suggested by the experimental data is reproduced by state-of-the-art shell calculations with a new effective interaction developed for the fpgd valence space.
description: 4 pages, 2 figures
Circular motion of neutral test particles in Reissner-Nordström spacetime
Creators: name: Pugliese, D.
name: Quevedo, H.
name: Ruffini, R.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the motion of neutral test particles in the gravitational field of a mass $M$ with charge $Q$ described by the Reissner-Nordström (RN) spacetime. We focus on the study of circular stable and unstable orbits around configurations describing either black holes or naked singularities. We show that at the classical radius, defined as $Q^2/M$, there exist orbits with zero angular momentum due to the presence of repulsive gravity. The analysis of the stability of circular orbits indicates that black holes are characterized by a continuous region of stability. In the case of naked singularities, the region of stability can split into two non-connected regions inside which test particles move along stable circular orbits.
description: 23 pages, 22 figures. To be published Phys. Rev. D
System transferability of public hospital facility mangement between Germany and Iran
Creators: name: Banedj-Schafii, Mandana
Publisher: name: Karlsruhe
Year: 2009
Subjects: Facility Management
health constuction
hospital
Germany
Iran
system transferability
Krankenhaus
Systemübertragbarkeit
Gesundheitssystem

description: The subject of this PhD-thesis is the transferability of Facility Management(FM)by using the example of hospitals in Germany and Iran. The intention is to determine the status and significance of facility management in the project countries, to analyse similarities, semblances and differences in order to develop a system transferability method.
Epidemiology of human immunodeficiency virus-1 and hepatitis B virus co-infection and risk factors for acquiring these infections in the Fako division of Southwest Cameroon
Creators: Shevell, Lauren
Meriki, Henry Dilonga
Cho-Ngwa, Fidelis
Fuller, Crystal
Publisher: name: Columbia University
Year: 2015
Subjects: subject: HIV (Viruses)--Social aspects
subject: HIV infections--Research
subject: HIV (Viruses)--Prevention
subject: Immunology
subject: FOS: Clinical medicine

description: Background
Past studies have demonstrated that a large population of Cameroonians are afflicted with human immunodeficiency virus (HIV) and/or hepatitis B virus (HBV) demonstrating a need for better prevention programs. We aim to describe the prevalence of HIV, HBV and HIV/HBV co-infection; examine the association between HIV and HBV; and determine risk correlates associated with HIV and HBV transmission in Southwest Cameroon.

Methods
A cross-sectional, community-based surveillance study was conducted among adults in five hospitals , one in each of the five health districts of  the Fako division of the Southwest region of Cameroon. Participants underwent pre- and post-test counselling, a 30-question survey and blood draw for HIV and HBV serologic testing. To construct a final model, chi-squared tests and logistic regression were used to investigate associations.

Results
Among 761 participants, 40.32 % were male, mean age was 35.21 ± 12.42 years, and the prevalence of HIV, HBV and HIV/HBV co-infection was 10.69 % , 9.86 % , and 1.16 % , respectively. There was no association between HIV and HBV infection. However, there was a statistically significant crude associated (p-value
Water formation at low temperatures by surface O2 hydrogenation I: characterization of ice penetration
Creators: name: Ioppolo, S.
name: Cuppen, H. M.
name: Romanzin, C.
name: van Dishoeck, E. F.
name: Linnartz, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Water is the main component of interstellar ice mantles, is abundant in the solar system and is a crucial ingredient for life. The formation of this molecule in the interstellar medium cannot be explained by gas-phase chemistry only and its surface hydrogenation formation routes at low temperatures (O, O2, O3 channels) are still unclear and most likely incomplete. In a previous paper we discussed an unexpected zeroth-order H2O production behavior in O2 ice hydrogenation experiments compared to the first-order H2CO and CH3OH production behavior found in former studies on hydrogenation of CO ice. In this paper we experimentally investigate in detail how the structure of O2 ice leads to this rare behavior in reaction order and production yield. In our experiments H atoms are added to a thick O2 ice under fully controlled conditions, while the changes are followed by means of reflection absorption infrared spectroscopy (RAIRS). The H-atom penetration mechanism is systematically studied by varying the temperature, thickness and structure of the O2 ice. We conclude that the competition between reaction and diffusion of the H atoms into the O2 ice explains the unexpected H2O and H2O2 formation behavior. In addition, we show that the proposed O2 hydrogenation scheme is incomplete, suggesting that additional surface reactions should be considered. Indeed, the detection of newly formed O3 in the ice upon H-atom exposure proves that the O2 channel is not an isolated route. Furthermore, the addition of H2 molecules is found not to have a measurable effect on the O2 reaction channel.
description: 1 page, 1 figure
Inelastic scanning tunneling spectroscopy: magnetic excitations on the nanoscale
Creators: name: Balashov, Timofey
Publisher: name: Karlsruhe
Year: 2009
Subjects: magnon
inelastic tunneling spectroscopy
STM

description: Inelastic scanning tunneling spectroscopy is used to study elementary  excitations (magnons) in magnetic systems of various dimensions: from bulk to single magnetic atoms. The creation mechanism, the excitation probability, the spectrum and the lifetimes of magnons are investigated.
Robust control of miniaturized optical image stabilizers for mobile phone cameras
Creators: name: Alizadegan, Alireza
Publisher: name: University of British Columbia
Year: 2019

description: Cameras in mobile phones are the most popular due to their availability and portability; however, image blur caused by involuntary hand-shakes of the photographer degrades their image quality as mobile phones become lighter, smaller, and high-resolution. The optical image stabilizer (OIS) is a hardware-based alternative to conventional software-based de-bluring algorithms that offer superior de-blur; however, they are set back for mobile phone applications by cost, size, and power limitations. The magnetically-actuated lens-tilting OIS is a novel miniaturizable and low-power conceptual design which is suitable for low-cost micro manufacturing methods; however, significant product variabilities caused by these methods, along with the strict performance requirements to outperform software-based algorithms, and the limited controller implementation capabilities of mobile phone devices pose a challenging control problem that is solved by the modeling and controller design method proposed in this thesis. To solve the problem, practical manufacturing tolerances are simulated through computer-aided design and analyzed by finite-element methods to obtain the structure of the dynamics of OIS and uncertainties in dynamics. A dynamic uncertainty model is developed based on the analysis results and the robust H∞ control theory is applied to guarantee the closed-loop stability and optimize the closed-loop performance against uncertainties with constrained controller order. The proposed method is demonstrated in two steps. First, it is applied to a set of large-scale OIS prototypes to demonstrate its feasibility in an experimental setting and its capability to deal with physical product variabilities. Then, it is applied to a set of small-scale OIS prototypes containing mass-produced parts to verify its applicability to real OISs. In both cases, the experimental results suggest that the robust H∞ controller outperforms the conventional nominal controllers and the μ-synthesis controller. By dealing with control challenges of the magnetically-actuated lens-tilting OIS, the application of this conceptual design to mobile phone cameras is expanded. Substitution of the conventional post-processing algorithms in mobile phone cameras with OIS has significant impact on their image quality.
Water formation at low temperatures by surface O2 hydrogenation II: the reaction network
Creators: name: Cuppen, H. M.
name: Ioppolo, S.
name: Romanzin, C.
name: Linnartz, H.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Water is abundantly present in the Universe. It is the main component of interstellar ice mantles and a key ingredient for life. Water in space is mainly formed through surface reactions. Three formation routes have been proposed in the past: hydrogenation of surface O, O2, and O3. In a previous paper [Ioppolo et al., Astrophys. J., 2008, 686, 1474] we discussed an unexpected non-standard zeroth-order H2O2 production behaviour in O2 hydrogenation experiments, which suggests that the proposed reaction network is not complete, and that the reaction channels are probably more interconnected than previously thought. In this paper we aim to derive the full reaction scheme for O2 surface hydrogenation and to constrain the rates of the individual reactions. This is achieved through simultaneous H-atom and O2 deposition under ultra-high vacuum conditions for astronomically relevant temperatures. Different H/O2 ratios are used to trace different stages in the hydrogenation network. The chemical changes in the forming ice are followed by means of reflection absorption infrared spectroscopy (RAIRS). New reaction paths are revealed as compared to previous experiments. Several reaction steps prove to be much more efficient (H + O2) or less efficient (H + OH and H2 + OH) than originally thought. These are the main conclusions of this work and the extended network concluded here will have profound implications for models that describe the formation of water in space.
description: 1 page, 1 figure
Geodesic deviations: modeling extreme mass-ratio systems and their gravitational waves
Creators: name: Koekoek, G.
name: van Holten, J. W.
Publisher: name: arXiv
Year: 2011
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The method of geodesic deviations has been applied to derive accurate analytic approximations to geodesics in Schwarzschild space-time. The results are used to construct analytic expressions for the source terms in the Regge-Wheeler and Zerilli-Moncrief equations, which describe the propagation of gravitational waves emitted by a compact massive object moving in the Schwarzschild background space-time. The wave equations are solved numerically to provide the asymptotic form of the wave at large distances for a series of non-circular bound orbits with periastron distances up to the ISCO radius, and the power emitted in gravitational waves by the extreme-mass ratio binary system is computed. The results compare well with those of purely numerical approaches.
Phase-field-crystal model for liquid crystals
Creators: name: Löwen, Hartmut
Publisher: name: arXiv
Year: 2010
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Based on static and dynamical density functional theory, a phase-field-crystal model is derived which involves both the translational density and the orientational degree of ordering as well as a local director field. The model exhibits stable isotropic, nematic, smectic A, columnar, plastic crystalline and orientationally ordered crystalline phases. As far as the dynamics is concerned, the translational density is a conserved order parameter while the orientational ordering is non-conserved. The derived phase-field-crystal model can serve for efficient numerical investigations of various nonequilibrium situations in liquid crystals.
Darboux transforms and simple factor dressing of constant mean curvature surfaces
Creators: name: Burstall, F. E.
name: Dorfmeister, J. F.
name: Leschke, K.
name: Quintino, A.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53A10, 58E20, 53A05

description: We define a transformation on harmonic maps from a Riemann surface into the 2-sphere which depends on a complex parameter, the so-called mu-Darboux transformation. In the case when the harmonic map N is the Gauss map of a constant mean curvature surface f and the parameter is real, the mu-Darboux transformation of -N is the Gauss map of a classical Darboux transform f. More generally, for all complex parameter the transformation on the harmonic Gauss map of f is induced by a (generalized) Darboux transformation on f. We show that this operation on harmonic maps coincides with simple factor dressing, and thus generalize results on classical Darboux transforms of constant mean curvature surfaces: every mu-Darboux transform is a simple factor dressing, and vice versa.
description: 20 pages
Thermodynamics of Electromechanically-Coupled Mixed Ionic-Electronic Conductors: Deformation potential, Vegard strains and Flexoelectric effect
Creators: name: Morozovska, A. N.
name: Eliseev, E. A.
name: Tagantsev, A. K.
name: Bravina, S. L.
name: Chen, Long-Qing
name: Kalinin, S. V.
Publisher: name: arXiv
Year: 2010
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Strong coupling among external voltage, electrochemical potentials, concentrations of electronic and ionic species, and strains is a ubiquitous feature of solid state mixed ionic-electronic conductors (MIECs), the materials of choice in devices ranging from electroresistive and memristive elements to ion batteries and fuel cells. Here, we analyze in detail the electromechanical coupling mechanisms and derive generalized bias-concentration-strain equations for MIECs including effects of concentration-driven chemical expansion, deformation potential, and flexoelectric effect contributions. This analysis is extended towards the bias-induced strains in the uniform and scanning probe microscopy-like geometries. Notably, the contribution of the electron-phonon and flexoelectric coupling to the local surface displacement of the mixed ionic-electronic conductor caused by the electric field scanning probe microscope tip has not been considered previously. The developed thermodynamic approach allows evolving theoretical description of mechanical phenomena induced by the electric fields (electro-mechanical response) in solid state ionics towards analytical theory and phase-field modeling of the MIECs in different geometries and under varying electrical, chemical, and mechanical boundary conditions.
description: 28 pages, 3 figures,1 table, 1 appendix
Pathways to agroecology : mediated markets and credit access in Santa Catarina, Brazil
Creators: name: Guerra, Jillian
Publisher: name: University of British Columbia
Year: 2016

description: Agroecology applies ecological principles to the design and management of agricultural systems, while also seeking to improve the social and economic livelihoods of farmers and rural communities. Agroecology is defined both as a social movement and as an applied science, and is often operationalized as the adoption of a set of particular principles and agricultural practices. A call to transition to more sustainable agricultural practices in general, and agroecological practices more specifically, is endorsed by social movements, scholars and prominent international institutions. Identifying and evaluating pathways that facilitate the adoption of agroecological production practices, as part of a broader sustainable agricultural transition is thus necessary, but research specifically evaluating pathways that may facilitate the transition to agroecology is understudied. The problem is approached via two studies conducted in the context of Santa Catarina, Brazil. The first study uses agricultural census data to evaluate the relative significance of a specific set of economic, social and knowledge-related factors on the use of agroecological practices by family farmers. The analyses showed that credit access has a strong and enduring positive relationship with the use of agroecological practices, though it is also positively associated with an increase in agri-chemical use. These results suggest that the effect of credit access on agroecological management practices is undervalued in the agroecology literature. However, the characterization of the diverse agricultural systems that are represented by Brazilian agricultural census data reveals a need to further investigate contextual factors that may be driving the dominance of credit access in the results. The second study evaluates if and how public food procurement programs that include incentives for agroecology certification can mitigate common constraints to adopting agroecological practices. Drawing on interviews with participants in Brazil’s National School Feeding Program (PNAE) and key informants, we found that the PNAE offers an economic incentive to begin an agroecological transition by creating a price-differentiated market, which is otherwise absent in the regional context. However without broader participation in agricultural networks, including farmers’ associations, cooperatives and extension agencies that support agroecological practices, the PNAE’s influence was limited in stimulating the broader transition to agroecological production practices.
Mass Hierarchy, Mixing, CP-Violation and Higgs Decay---or Why Rotation is Good for Us
Creators: name: Baker, Michael J
name: Bordes, J.
name: Chan, H. M.
name: Tsou, S. T.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The idea of a rank-one rotating mass matrix (R2M2) is reviewed detailing how it leads to ready explanations both for the fermion mass hierarchy and for the distinctive mixing patterns between up and down fermion states, which can be and have been tested against experiment and shown to be fully consistent with existing data. Further, R2M2 is seen to offer, as by-products: (i) a new solution of the strong CP problem in QCD by linking the theta-angle there to the Kobayashi-Maskawa CP-violating phase in the CKM matrix, and (ii) some novel predictions of possible anomalies in Higgs decay observable in principle at the LHC. A special effort is made to answer some questions raised.
description: 47 pages, 9 figures
Use Case-basierte Anwendungen der Energy ADE : Anforderungen an ein Schema zur Ergänzung der Energy ADE um Anlagen- und Gebäudetechnik
Creators: name: Behm, Christian
name: Malhotra, Avichal
name: Schildt, Maximilian
name: Weck-Ponten, Sebastian
name: Frisch, Jérôme
name: Van Treeck, Christoph Alban
Publisher: name: RWTH Aachen University
Year: 2020

description: Konferenz Digitalisieren – Sektoren koppeln – Flexibilisieren: Systemische Integration der Bioenergie und Weiterer Erneuerbarer Energien in Gebäuden & Quartieren, , 24 Nov 2020 - 24 Nov 2020
MOESM7 of Wedge-shaped microfluidic chip for circulating tumor cells isolation and its clinical significance in gastric cancer
Creators: name: Yang, Chaogang
name: Zhang, Nangang
name: Wang, Shuyi
name: Shi, Dongdong
name: Zhang, Chunxiao
name: Liu, Kan
name: Xiong, Bin
Publisher: name: figshare
Year: 2018
Subjects: Space Science
Physical Sciences not elsewhere classified
Medicine
Cell Biology
Molecular Biology
Biological Sciences not elsewhere classified
Cancer
Computational Biology

description: Additional file 7: Table S2. Association between CTCs and tumor markers.
title: Σχεδιασμός πειράματος σεισμικής ανάκλασης για την απεικόνιση του υπεδάφους σε περιβάλλον βαθιάς θάλασσας νότια της Κρήτης
Creators: name: Κυριακοπουλος Στεφανος
Publisher: name: Technical University of Crete
Year: 2020

description: Στην παρούσα πτυχιακή εργασία επεξεργάστηκαν συνθετικά δεδομένα σεισμικής ανάκλασης που αντιστοιχούν στην θαλάσσια περιοχή της νότιας Κρήτης. Για την πραγματοποίηση του πειράματος της σεισμικής ανάκλασης τα συνθετικά δεδομένα προήλθαν από το λογισμικό του περιβάλλον της Μatlab.Τα συνθετικά δεδομένα είναι κατηγοριοποιημένα σε διάταξη κοινής πηγής. Επίσης ένα άλλο καθοριστικό κομμάτι της πτυχιακής είναι και η μετατροπή των δεδομένων που δημιουργήθηκαν με πηγή 10Hz σε καλύτερης ανάλυσης δεδομένα με κυρίαρχη συχνότητα 20Hz, όπου στα επόμενα κεφάλαια που ακολουθούν περιγράφεται λεπτομερέ-στατα η διαδικασία της μετατροπής αυτής.
Αρχικά τα συνθετικά δεδομένα κοινής πηγής κατηγοριοποιούνται σε διάταξη κοινού ενδιάμεσου σημείου, στην συνέχεια από την διαδικασία της  δυναμικής διόρθωσης, δίνεται η δυνατότητα για την αφαίρεση χρόνου  από τον χρόνο διαδρομής των ανακλώμενων κυμάτων, ο οποίος ισούται με την κανονική χρονική απόκλιση.
Ακόμα ακολουθεί  η διαδικασία της σεισμικής υπέρθεσης, όπου μέσα από αυτό το κομμάτι της επεξεργασίας  ενισχύονται τα πλάτη των ανακλώμενων κυμάτων και έτσι ενισχύεται το σήμα των σεισμικών ανακλάσεων.
Στη συνέχεια ακολουθεί η διαδικασία της σεισμικής χωροθέτησης, όπου βοηθάει στην ανακατασκευή και στην τοποθέτηση των ανακλαστήρων στη σωστή τους θέση. Στην συγκεκριμένη επεξεργασία χρησιμοποιήθηκαν τρείς μέθοδοι: Η μέθοδος Χωροθέτησης Kirchhoff, η μέθοδος χωροθέτησης Πεπερασμένων διαφορών (Finite Difference)  και η μέθοδος Μετατόπισης φάσης (Phase shift) στο χώρο των συχνοτήτων.
Effective temperatures of a driven, strongly anisotropic Brownian system
Creators: name: Zhang, Min
name: Szamel, Grzegorz
Publisher: name: arXiv
Year: 2011
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We use Brownian Dynamics computer simulations of a moderately dense colloidal system undergoing steady shear flow to investigate the uniqueness of the so-called effective temperature. We compare effective temperatures calculated from the fluctuation-dissipation ratios and from the linear response to a static, long wavelength, external perturbation along two directions: the shear gradient direction and the vorticity direction. At high shear rates, when the system is strongly anisotropic, the fluctuation-dissipation ratio derived effective temperatures are approximately wave-vector independent, but the temperatures along the gradient direction are somewhat higher than those along the vorticity direction. The temperatures derived from the static linear response show the same dependence on the direction as those derived from the fluctuation-dissipation ratio. However, the former and the latter temperatures are different. Our results suggest that the presently used formulae for effective temperatures may not be applicable for strongly anisotropic, driven systems.
Multicomponent theory of buoyancy instabilities in astrophysical plasma objects: The case of magnetic field perpendicular to gravity
Creators: name: Nekrasov, Anatoly K.
name: Shadmehri, Mohsen
Publisher: name: arXiv
Year: 2010
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We develop a general theory of buoyancy instabilities in the electron-ion plasma with the electron heat flux based not upon MHD equations, but using a multicomponent plasma approach in which the momentum equation is solved for each species. We investigate the geometry in which the background magnetic field is perpendicular to the gravity and stratification. General expressions for the perturbed velocities are given without any simplifications. Collisions between electrons and ions are taken into account in the momentum equations in a general form, permitting us to consider both weakly and strongly collisional objects. However, the electron heat flux is assumed to be directed along the magnetic field that implies a weakly collisional case. Using simplifications justified for an investigation of buoyancy instabilities with the electron thermal flux, we derive simple dispersion relations both for collisionless and collisional cases for arbitrary directions of the wave vector. The collisionless dispersion relation considerably differs from that obtained in the MHD framework and is similar to the Schwarzschild's criterion. This difference is connected with simplified assumptions used in the MHD analysis of buoyancy instabilities and with the role of the longitudinal electric field perturbation which is not captured by the ideal MHD equations. The results obtained can be applied to clusters of galaxies and other astrophysical objects.
description: Accepted for publication in "Astrophysical Journal"
RDA Webinar: FAIR Principles for Research Software (FAIR4RS WG)
Creators: name: Gruenpeter, Morane
name: Martínez, Carlos
name: Chue Hong, Neil P.
name: Katz, Daniel S.
name: Martinez, Paula Andrea
name: Barker, Michelle
name: Garcia-Castro, Leyla Jael
name: Harrow, Jennifer
name: Psomopoulos, Fotis E.
Publisher: name: Zenodo
Year: 2021
Subjects: FAIR
Research Software

description: Attendees will learn about Research Software and the differences between software and data that lead the community to develop a separate set of FAIR guiding principles for Software. The webinar will be of interest to anyone using, creating, or studying software in a research context. Attendees should be familiar with the FAIR principles concept. This webinar will start with an overview of the current activities related to software in the RDA community and in the scholarly ecosystem. An in-depth analysis of the recently published recommendations of the FAIR principles for Research Software made by the FAIR4RS WG will follow. We will also present challenges identified when creating the principles and the limitations of FAIR for Research Software. Finally, we will share our current activities and next steps, where we will invite webinar attendees to join the WG’s newly formed subgroups aimed at supporting adoption and governance. Research software is a significant and vital component of research. It is integral to all stages of research and can play the role of a tool, a research result, or a research object. In RDA, software issues and challenges were formalized at a Birds of Feathers session at the 8th Plenary in 2017, resulting in the Software Source Code Interest Group (SSC IG). In July 2020, a new FAIR For Research Software Working Group (FAIR4RS WG) was jointly convened as a Research Data Alliance (RDA) Working Group, a FORCE11 Working Group, and a Research Software Alliance (ReSA) Taskforce, in recognition of the importance of software as a scholarly output and the necessity to review and adapt the FAIR data guiding principles (Wilikinson et al.) to research software.
Mindfulness-integrated, resilience, trauma-informed and social pedagogy (MIRTS) : a holistic treatment curriculum for professionals working with young people with fetal alcohol spectrum disorder (FASD) and substance use issues
Creators: name: Mockett, Velma
Publisher: name: University of British Columbia
Year: 2016

description: Over the past ten years, the service needs of young people with FASD have been the subject of considerable interest. This interest has been triggered, in large part, by a growing recognition of the fact that addiction and mental health service do not adequately serve young people with FASD. The purpose of this dissertation was to develop a curriculum for professionals working with young people with FASD within the addiction settings, with the general aim of improving holistic outcomes for young people with FASD. A modified version of Intervention Mapping (IM) was used to guide the development, formative evaluation and implementation plan of the curriculum. Findings from the evaluation indicated that in early drafts of the curriculum the level of detail would need to be modified for clinicians to use it effectively and that concepts also needed to be simplified so that young people with FASD would be able to engage more freely with the material that a clinician presents. Later stages of the evaluation reveal the degree to which the framework illuminated new or unconsidered areas, the extent to which goals and objectives were better defined and understood and the degree to which clinician’s information needs were addressed. The review and consultation process indicated that clinicians found the material engaging, effective, appropriate and beneficial to the work they do. All the clinicians consulted noted that they would use the curriculum, and recommend it to colleagues. The results of this evaluation further strengthen and support the necessity for more appropriate resources and services to nurture the strengths and address the needs of young people with FASD. IM provided a useful framework for developing an appropriate theory-based curriculum for professionals working with young people with FASD. Although the process was time-consuming, it provided a systematic and rigorous approach to developing a quality curriculum. This in turn provided a clear framework for the process of analysis and therefore, increases the potential of the curriculum to realize the desired outcome.
The k-Tuple Domatic Number of a Graph
Creators: name: Kazemi, Adel P.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C69

description: For every positive integer $k$, a set $S$ of vertices in a graph $G=(V,E)$ is a $k$-tuple dominating set of $G$ if every vertex of $V-S$ is adjacent to least $k$ vertices and every vertex of $S$ is adjacent to least $k-1$ vertices in $S$. The minimum cardinality of a $k$-tuple dominating set of $G$ is the $k$-tuple domination number of $G$. When $k=1$, a $k$-tuple domination number is the well-studied domination number. We define the $k$-tuple domatic number of $G$ as the largest number of sets in a partition of $V$ into $k$-tuple dominating sets. Recall that when $k=1$, a $k$-tuple domatic number is the well-studied domatic number. In this work, we derive basic properties and bounds for the $k$-tuple domatic number.
We must know. We will know
Creators: name: Sanchis-Lozano, Miguel-Angel
Publisher: name: arXiv
Year: 2010
Subjects: subject: Popular Physics (physics.pop-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The after-dinner talk has by now become a tradition of this Conference series on Quark Confinement and the Hadron Spectrum. On this occasion, I have tried to combine a free-style and (hopefully) amusing presentation with deep questions of physics especially connected with the dynamics of strong interaction. To this end some masterpieces of classical music (by Beethoven, Mozart, Dvorak, Stravinsky ...) and pop music (by Bob Dylan, Eric Clapton) were employed to illustrate certain aspects of physics. By no means was this presentation (nor this paper) intended as a comprehensive review of the different topics examined during the Conference, but rather a call for further thinking on the sinergy of different branches of physics and the excitement of foreseen discoveries in a not too distant future.
description: 6 pages, 8 figures, After-dinner talk given at the IX Conference on Quark Confinement and the Hadron Structure, Madrid, August 30th to September 3rd 2010
Application of Threshold Techniques for Readability Improvement of Jawi Historical Manuscript Images
Creators: name: Som, Hafizan Mat
name: Zain, Jasni Mohamad
name: Ghazali, Amzari Jihadi
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Historical documents such as old books and manuscripts have a high aesthetic value and highly appreciated. Unfortunately, there are some documents cannot be read due to quality problems like faded paper, ink expand, uneven colour tone, torn paper and other elements disruption such as the existence of small spots. The study aims to produce a copy of manuscript that shows clear wordings so they can easily be read and the copy can also be displayed for visitors. 16 samples of Jawi historical manuscript with different quality problems were obtained from The Royal Museum of Pahang, Malaysia. We applied three binarization techniques; Otsu's method represents global threshold technique; Sauvola and Niblack method which are categorized as local threshold techniques. We compared the binarized images with the original manuscript to be visually inspected by the museum's curator. The unclear features were marked and analyzed. Most of the examined images show that with optimal parameters and effective pre processing technique, local thresholding methods are work well compare with the other one. Niblack's and Sauvola's techniques seem to be the suitable approaches for these types of images. Most of binarized images with these two methods show improvement for readability and character recognition. For this research, even the differences of image result were hard to be distinguished by human capabilities, after comparing the time cost and overall achievement rate of recognized symbols, Niblack's method is performing better than Sauvola's. We could improve the post processing step by adding edge detection techniques and further enhanced by an innovative image refinement technique and a formulation of a class proper method.
description: 10 pages, 6 figures, 2 tables, Advance Computing: An International Journal (ACIJ)
Zum Konzept der künftigen Finanzaufsicht über Lebensversicherungsunternehmen in Deutschland - eine betriebswirtschaftliche Analyse von Solvency II unter besonderer Berücksichtigung von Bewertungsfragen
Creators: name: Ludwig, Felix
Publisher: name: Karlsruhe
Year: 2008
Subjects: Lebensversicherungsunternehmen
Versicherungsaufsicht
Finanzaufsicht
Solvency II
internationale Rechnungslegung
Bilanztheorie

description: Die Arbeit untersucht die derzeit auf europäischer Ebene im Rahmen des Solvency II-Projektes reformierte Finanzaufsicht über Versicherungsunternehmen aus betriebswirtschaftlicher Perspektive, wobei von der Anwendung von Solvency II auf deutsche Lebensversicherungsunternehmen ausgegangen wird. Methodisch werden für die Analyse Anforderungen an zielkonforme Finanzaufsicht abgeleitet und die künftige Finanzaufsicht vor dem Hintergrund relevanter betriebswirtschaftlicher Erkenntnisse beurteilt.
title: Untersuchung der Systemdienlichkeit von Wasserstoffrückverstromung mit Kraft-Wärme-Kopplung
title: System Support Analysis of Hydrogen Regeneration with CHP
titleType: AlternativeTitle
Creators: name: Decher, Simon
name: Aniol, Kaja
name: Schäfers, Hans
Publisher: name: VDE Verlag
Year: 2021
Subjects: subject: Wasserstoff
subject: Wasserstoffrückverstromung
subject: Systemdienlichkeit
subject: Kraft-Wärme-Kopplung
subject: 620: Ingenieurwissenschaften

description: Im EU-Projekt „mySMARTLife“ wird unter anderem die Nutzung von bis zu 30 vol.% Wasserstoff im Erdgas in Kraftwärmekopplung (KWK)-Anlagen erprobt. Die auf KWK basierte Nahwärmeversorgung eines Wohnquartiers wird dazu teilweise wasserstofffähig umgerüstet. Der Gasnetzbetreiber schafft mit einem Gasmischer die Möglichkeit zur (Rück-)Verstromung von Wasserstoff. In der Testphase wird der Betrieb mit verschiedenen Anteilen von Wasserstoff am Verbrennungsgasgemisch erprobt. Ziel ist die Prüfung eines reproduzierbaren Betriebs der Anlagen mit flexiblen Wasserstoffanteilen. Optimierungspotentiale zum Senken von positiven bzw. Anheben von negativen Residuallasten mit wasserstoffbetrieben Blockheizkraftwerken (BHKW) werden eruiert.
description: The EU project „mySMARTLife“ is testing, among other things, the use of up to 30 vol. % hydrogen in natural gas in combined heat and power (CHP) plants. The CHP-based local heat supply of a residential area will be partially converted to hydrogen. The gas network operator is using a gas mixer to create the possibility of (re)generating hydrogen. In the test phase, operation with different proportions of hydrogen in the combustion gas mixture will be tested. The aim is to test reproducible operation of the plants with flexible hydrogen proportions. Optimization potentials for lowering positive or raising negative residual loads with hydrogen-powered CHP will be elicited.