cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Classical analog of extended phase space SUSY and its breaking
Creators: name: Ter-Kazarian, Gagik
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We derive the classical analog of the extended phase space quantum mechanics of the particle with odd degrees of freedom which gives rise to (N=2)-realization of supersymmetry (SUSY) algebra. By means of an iterative procedure, we find the approximate groundstate solutions to the extended Schrödinger-like equation and use these solutions further to calculate the parameters which measure the breaking of extended SUSY such as the groundstate energy. Consequently, we calculate a more practical measure for the SUSY breaking which is the expectation value of an auxiliary field. We analyze non-perturbative mechanism for extended phase space SUSY breaking in the instanton picture and show that this has resulted from tunneling between the classical vacua of the theory. Particular attention is given to the algebraic properties of shape invariance and spectrum generating algebra.
description: 13 pages, no figures, ISRN Mathematical Physics, Volume 2013, Article ID 639424
Evaluation of the indoor environment in a historic museum during the COVID-19 lockdown in Northwest England
Creators: name: Al-Maiyah, Sura
name: Martinson, D. Brett
name: Elkadi, Hisham
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Science Policy
subject: Sociology
subject: FOS: Sociology
subject: Mental Health

description: Monitoring the quality of the indoor environment is a practice commonly adopted by museums as part of operational risk management. Recorded environmental data are often used to assess the safety of the indoor environment for artefacts, and their suitability for visitors' comfort. Previous studies reported monitoring campaigns assessing the performance of museums and level of compliance with regulatory standards. These analyses were typically conducted in normal circumstances assessing indoor microclimate quality under normal operating procedures. Museum closures during the 2020 pandemic and the global lockdown measures, introduced by governments, presented the heritage sector with an unprecedented situation with empty galleries where collections, in several museums, were held ‘dormant’ in free-running environments. Assessing the indoor environment in such exceptional circumstances offers a unique insight into the performance of these heritage repositories in other unpredicted situations and potential opportunities for microclimate optimization. This paper reports the results of an extended pre and post-pandemic monitoring that was performed in a historic museum in Northwest England. It contributes to the ongoing universal debate about the application of standardized strict environmental guidelines and the shift towards more contextualized standards in museums in the face of the decline in heritage funding and the pledges for carbon reductions.
CAFE: Calar Alto Fiber-fed Echelle spectrograph
Creators: name: Aceituno, J.
name: Sanchez, S. F.
name: Grupp, F.
name: Lillo, J.
name: Hernan-Obispo, M.
name: Benitez, D.
name: Montoya, L. M.
name: Thiele, U.
name: Pedraz, S.
name: Barrado, D.
name: Dreizler, S.
name: Bean, J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We present here CAFE, the Calar Alto Fiber-fed Echelle spectrograph, a new instrument built at the Centro Astronomico Hispano Alemán (CAHA). CAFE is a single fiber, high-resolution ($R\sim$70000) spectrograph, covering the wavelength range between 3650-9800Å. It was built on the basis of the common design for Echelle spectrographs. Its main aim is to measure radial velocities of stellar objects up to $V\sim$13-14 mag with a precision as good as a few tens of $m s^{-1}$. To achieve this goal the design was simplified at maximum, removing all possible movable components, the central wavelength is fixed, so the wavelentgth coverage; no filter wheel, one slit and so on, with a particular care taken in the thermal and mechanical stability. The instrument is fully operational and publically accessible at the 2.2m telescope of the Calar Alto Observatory. In this article we describe (i) the design, summarizing its manufacturing phase; (ii) characterize the main properties of the instrument; (iii) describe the reduction pipeline; and (iv) show the results from the first light and commissioning runs. The preliminar results indicate that the instrument fulfill the specifications and it can achieve the foreseen goals. In particular, they show that the instrument is more efficient than anticipated, reaching a $S/N\sim$20 for a stellar object as faint as $V\sim$14.5 mag in $\sim$2700s integration time. The instrument is a wonderful machine for exoplanetary research (by studying large samples of possible systems cotaining massive planets), galactic dynamics (high precise radial velocities in moving groups or stellar associations) or astrochemistry.
description: 12 pages, 23 figures; Acepted for publishing in A&A, 2013
Outpatient oncology settings: the distinctive contribution of supportive design to patient experience and wellbeing
Creators: name: Sadek, Ahmed H.
name: Willis, Julie
name: Joubert, Lynette
name: Shah, Bhaumik
name: Fawzy, Mayada
name: Speakman, David
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Computational Biology

description: The concept of patient-centred care is increasingly shaping healthcare practices, particularly within oncology settings. Its implications extend to a hospital's constructed environment and how it is designed, yet few studies have explored patient experience of such sensitive settings, and even fewer have examined outpatient oncology facilities. This study researched how the hospital built environment affects cancer patient wellbeing using in-depth interviews with 24 patients across Australia and Egypt. Analysis of patient-narrated experiences shed light on the potential latent impact of the built environment on patient health-related outcomes, such as pre-treatment anxiety and treatment-induced sensitivities and stresses. Three overarching themes were identified, including the built environment capacity to contribute to incidences of positivity; balancing the unavoidable (necessary) presence in the hospital; and encouraging reasons to return – potentially enhancing treatment compliance. The study further demonstrates how such support may contribute to experiencing a desired climate of patient-centred care, affording additional grounds for patients to cope with the potential burdens of treatment and its side effects.
Vitreous silica distends in helium gas: acoustic vs. static compressibilities
Creators: name: Weigel, Coralie
name: Polian, Alain
name: Kint, Mathieu
name: Rufflé, Benoit
name: Foret, Marie
name: Vacher, René
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Sound velocities of vitreous silica are measured under He compression in the pressure range 0-6 GPa by Brillouin light scattering. It is found that the well-known anomalous maximum in the pressure dependence of the compressibility is suppressed by He incorporation into the silica network. This shows that the elastic anomaly relates to the collapse of the largest interstitial voids in the structure. The huge difference between the static and the acoustic compressibilities indicates that the amount of incorporated helium still increases at 6 GPa.
description: 5 pages, 4 figures
Foodshift 2030: A Citizen-Driven Transition of the European Food System (EU Horizon Project)
Creators: name: Armstrong, Kate
name: Whaman, Emily
name: Schafer, Luke
name: Bugge Henriksen, Christian
name: Wascher, Dirk
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food systems
subject: innovation
subject: citizen-empowerment
subject: plant-based diets
subject: opensource technology
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Food poses major challenges for European citizens; be it attaining nutrient rich diets or the disproportionate contribution the food system makes to climate change. Currently, food system innovations don’t sufficiently address these challenges, nor do they take advantage of the opportunities and barriers for scaling up successful food system solutions. The FoodSHIFT 2030 project takes departure in the EU Food 2030 Research and Innovation Policy Framework, the EU’s commitment under the Paris Agreement and the UN Sustainable Development Goals (SDGs) to launch an ambitious citizen-driven transition of the European food system towards a low carbon circular future, including a shift to less meat and more plant-based diets. It does so by creating a framework and efficient mechanisms for maturing, combining, upscaling and multiplying existing food system innovations through the operationalisation of nine citizen-driven FoodSHIFT Accelerator Labs and a further 27 FoodSHIFT Enabler Labs to be established in city-regions distributed across Europe.
Phase Field Models versus Parametric Front Tracking Methods: Are they accurate and computationally efficient?
Creators: name: Barrett, John W.
name: Garcke, Harald
name: Nürnberg, Robert
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35K55, 35R35, 35R37, 53C44, 65M12, 65M50, 65M60, 74E10, 74E15, 74N20, 80A22, 82C26

description: We critically compare the practicality and accuracy of numerical approximations of phase field models and sharp interface models of solidification. Particular emphasis is put on Stefan problems, and their quasi-static variants, with applications to crystal growth. New approaches with a high mesh quality for the parametric approximations of the resulting free boundary problems and new stable discretizations of the anisotropic phase field system are taken into account in a comparison involving benchmark problems based on exact solutions of the free boundary problem.
description: 51 pages, 22 figures, 15 tables
Mixing of 0(+) and 0(-) observed in the hyperfine and Zeeman structure of ultracold Rb-2 molecules
Creators: name: Deiss, Markus
name: Drews, Bjoern
name: Denschlag, Johannes Hecker
name: Tiemann, Eberhard
Publisher: name: Bristol : IOP Publishing Ltd.
Year: 2015
Subjects: subject: ultracold molecules
subject: spectroscopy
subject: dipole transitions
subject: hyperfine structure
subject: Zeeman effect
subject: spin-orbit coupling
subject: coupled channel calculations
subject: coupled electronic states
subject: nak
subject: k-2
subject: resolution
subject: triplet
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: We study the combination of the hyperfine and Zeeman structure in the spin-orbit coupled A(1)Sigma(+)(u) = b(3)Pi(u) complex of Rb-87(2). For this purpose, absorption spectroscopy at a magnetic field around B = 1000 G is carried out. We drive optical dipole transitions from the lowest rotational state of an ultracold Feshbach molecule to various vibrational levels with 0(+) symmetry of the A - b complex. In contrast to previous measurements with rotationally excited alkali-dimers, we do not observe equal spacings of the hyperfine levels. In addition, the spectra vary substantially for different vibrational quantum numbers, and exhibit large splittings of up to 160 MHz, unexpected for 0(+) states. The level structure is explained to be a result of the repulsion between the states 0(+) and 0(-) of b(3)Pi(u), coupled via hyperfine and Zeeman interactions. In general, 0(-) and 0(+) have a spin-orbit induced energy spacing Delta, that is different for the individual vibrational states. From each measured spectrum we are able to extract Delta, which otherwise is not easily accessible in conventional spectroscopy schemes. We obtain values of Delta in the range of +/- 100 GHz which can be described by coupled channel calculations if a spin-orbit coupling is introduced that is different for 0(-) and 0(+) of b(3)Pi(u).
A Digital Automatic Sliding Door with a Room Light Control System
Creators: name: Zungeru, A. M.
name: Abraham-Attah, P. O.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Other Computer Science (cs.OH)
subject: FOS: Computer and information sciences

description: Automatic door is an automated movable barrier installed in the entry of a room or building to restrict access, provide ease of opening a door or provide visual privacy. As a result of enhanced civilization and modernization, the human nature demands more comfort to his life. The man seeks ways to do things easily and which saves time. So thus, the automatic gates are one of the examples that human nature invent to bring comfort and ease in its daily life. To this end, we model and design an automatic sliding door with a room light control system to provide the mentioned needs. This was achieved by considering some factors such as economy, availability of components and research materials, efficiency, compatibility and portability and also durability in the design process. The performance of the system after test met design specifications. This system works on the principle of breaking an infrared beam of light, sensed by a photodiode. It consists of two transmitting infrared diodes and two receiving photo-diodes. The first one is for someone coming in and the second one is for someone going out of the room. The photodiodes are connected to comparators, which give a lower output when the beam is broken and high output when transmitting normally. The general operation of the work and performance is dependent on the presence of an intruder entering through the door and how close he/she is in closer to the door. The door is meant to open automatically but in a case where there is no power supply trying to force the door open would damage the mechanical control system of the unit. The overall work was implemented with a constructed work, tested working and perfectly functional.
description: 17 pages, 17 figures, Journal paper
Beliefs, Values, and Practices in Development Studies
Creators: name: Briggs, Ryan C.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Science Policy
subject: Mental Health

description: This article uses a survey of Development Studies (DS) professors and students in Canada, the United States, and the United Kingdom to answer three questions about academic DS. DS is defined in part by a commitment to improve the world, and the first questions ask if the respondents believe that DS lives up to this defining criteria. The second group of questions asks about the ethical commitments of DS academics and how these commitments inform our research and teaching. Finally, I explore cross-national variation in how we practice DS. I ask about the methods, training, and disciplinary norms of DS academics across the three countries. In asking about beliefs, values, and practices and in exploring cross-national variation in our answers, I seek to both build self-knowledge about DS academics as a cross-national epistemic community and also to encourage self-reflection about how we can harmonise our empirical beliefs, ethical commitments, and professional practices.
The Effects of Urbanization on Prairie Bats
Creators: name: Coleman, Joanna
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Mammalia
Chiroptera
Chordata
Animalia
bats
bat

description: (Uploaded by Plazi for the Bat Literature Project) My thesis addresses three key gaps in urban-ecology research, which lacks sufficient attention to (1) grassland biomes, (2) individual- and population-level effects, and (3) nonavian vertebrates. I hypothesized that in the fairly flat, homogeneous Prairies, the city (Calgary, Alberta) is like a structurally complex island, with increased availability of roosts and prey. Along with the urban heat island, these features of the urban environment would benefit Prairie bats, producing increased bat abundance, diversity and fitness in the city relative to outside. I acoustically monitored bat activity and captured bats in mist nets, and found that although urban bats were more abundant, they were not more diverse. Myotis lucifugus dominated bat assemblages throughout my study area, but nowhere more so than in Calgary. It appears that urbanization in the Prairies may create attractive habitat for one synanthropic species (M. lucifugus) but have the opposite effect for others. I sampled nocturnal insects to assess the potential availability of prey to bats, and acoustically monitored their foraging activity. Contrary to my predictions, neither insect abundance nor insect diversity was maximized in the city, and urban bats did not forage more than non-urban bats did. Thus, increased numbers of M. lucifugus in Calgary do not seem linked to an urban increase in prey availability. I assessed body condition, reproductive rates, spermatogenesis, production of juveniles, post-natal growth and population age structure in M. lucifugus. I found no support for predictions that urban bats have enhanced fitness relative to non-urban conspecifics. Instead, it appears that increased population density in the city may be detrimental to bats, perhaps by increasing intraspecific competition for food. Finally, I assessed the ectoparasite loads of urban and non-urban bats. The effects of urbanization in terms of modulating ectoparasitism were dependent on the bat species, bat group and parasite type, with no consistent pattern. Ultimately, I reject my overall hypothesis. Rather than benefitting Prairie bats, urbanization may be detrimental to them. This may reflect a more general negative effect of increased bat density and/or larger group size in the city.
Vulnerability to Climate Change and Communal Conflicts: Evidence from Sub-Saharan Africa and South/South-East Asia
Creators: name: Balestri, Sara
name: Caruso, Raul
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: This paper examines the influence of climate change vulnerability on the likelihood and severity of communal violence, with a particular emphasis on delineating large-scale regional patterns. Specifically, the analysis centres on Sub-Saharan Africa and South/South-East Asia – both regions being predominantly characterised by rain-fed agriculture and climate-sensitive economic activities – spanning the years 1995 to 2021. Relying on the ND-GAIN Vulnerability Index as a multidimensional measure for propensity of societies to be negatively impacted by climate change, we found robust evidence that greater vulnerability is conducive to a higher likelihood and severity of communal violence in Sub-Saharan Africa. On the other hand, in South/South-East Asia, results suggest that current climate variability, measured as rainfall deviations within the period, exerts a greater effect on communal violence outbreak than overall vulnerability to climate change. In both regions, greater access to productive means is significantly associated to the reduction of communal violence.
Dirac Fermions in Solids - from High Tc cuprates and Graphene to Topological Insulators and Weyl Semimetals
Creators: name: Vafek, Oskar
name: Vishwanath, Ashvin
Publisher: name: arXiv
Year: 2013
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Understanding Dirac-like Fermions has become an imperative in modern condensed matter sciences: all across its research frontier, from graphene to high T$_c$ superconductors to the topological insulators and beyond, various electronic systems exhibit properties which can be well described by the Dirac equation. Such physics is no longer the exclusive domain of quantum field theories and other esoteric mathematical musings; instead, real physics of real systems is governed by such equations, and important materials science and practical implications hinge on our understanding of Dirac particles in two and three dimensions. While the physics that gives rise to the massless Dirac Fermions in each of the above mentioned materials is different, the low energy properties are governed by the same Dirac kinematics. The aim of this article is to review a selected cross-section of this vast field by highlighting the generalities, and contrasting the specifics, of several physical systems.
description: 46 pages, 7 figures. Manuscript submitted to Annual Reviews of Condensed Matter Physics
title: Маршруты памяти царской семьи на Урале и в Сибири в контексте музейной коммуникации
Creators: name: Прокофьева, Наталья
Publisher: name: Новгородский государственный университет имени Ярослава Мудрого (НовГУ)
Year: 2019

description: Память о династии Романовых в год 100-летия со дня гибели царской семьи актуализируется в музейных условиях во всероссийском масштабе, вызывая изменение традиционного отношения к прошлому и истории. Исторические события и социальные воспоминания становятся все более четкими и доступными с использованием форм и способов музейной коммуникации. Автор рассматривает опыт посещения мест памяти царской семьи на Урале и в Сибири в контексте восстановления живого контакта с прошлым.
Fiscal Reaction Functions Augmented with Bespoke Debt Indicators: Evidence from Small Island States
Creators: name: Rahaman, Akeem
name: Mahadeo, Scott Mark Romeo
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: Plant Biology

description: Developing countries have a higher propensity for debt distress than their developed counterparts and small economies are more vulnerable to external shocks than larger ones. We examine the primary balances of two economies at the intersection of developing and smallness classifications – so-called small island developing states (SIDS) – Trinidad and Tobago (T&T) and Mauritius. These countries have comparable characteristics (smallness, openness, populations, and are former plantation economies with similar colonial histories) but differ in their natural resource wealth status (the former is resource-rich and the latter is resource-poor). Given the myopic insights provided by single metrics of government indebtedness, such as the debt-to-GDP ratio, we augment standard fiscal reaction functions with purpose-built debt sustainability measures that use principal component analysis to consolidate the information content imbedded in a comprehensive range of country-relevant fiscal ratios. Our results show while debt is sustainable in both countries, fiscal policy is procyclical. We also find that debt volatility is positive and significant for T&T’s primary balance but is insignificant for Mauritius, which we attribute to the differing degrees of export-diversification between the countries. Policy recommendations include greater commitments to counter-cyclical fiscal policy in both SIDS and greater export-diversification initiatives in T&T.
Lithium diffusion in congruent LiNbO3 single crystals at low temperatures probed by neutron reflectometry
Creators: name: Hueger, E.
name: Rahn, J.
name: Stahn, J.
name: Geue, T.
name: Heitjans, Paul
name: Schmidt, H.
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2014
Subjects: subject: niobate crystals
subject: self-diffusion
subject: proton-exchange
subject: nmr
subject: li
subject: nonstoichiometry
subject: nanocrystalline
subject: substitution
subject: conductivity
subject: dependence
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik
subject: Dewey Decimal Classification::500 | Naturwissenschaften::540 | Chemie

description: The self-diffusion of lithium in congruent LiNbO3 single crystals was investigated at low temperatures between 379 and 523 K by neutron reflectometry. From measurements on 6LiNbO3 (amorphous film)/natLiNbO3 (single crystal) samples, Li self-diffusivities were determined in single crystals down to extremely low values of 1 × 10−25 m2 s−1 on small length scales of 1–10 nm. The measured diffusivities are in excellent agreement with (extrapolated) literature data obtained by experiments based on Secondary Ion Mass Spectrometry and Impedance Spectroscopy. The tracer diffusivities can be described by a single Arrhenius line over ten orders of magnitude with an activation enthalpy of 1.33 eV, which corresponds to the migration energy of a single Li vacancy. A deviation from the Arrhenius behaviour at low temperatures, e.g., due to defect cluster formation is not observed.
LISA Pathfinder: OPD loop characterisation
Creators: name: Born, Michael
name: LISA Pathfinder Collaboration
name: Et Al.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: Interferometers
subject: Control loop
subject: Ground measurements
subject: Heterodyne interferometer
subject: LISA Pathfinder
subject: Loop parameters
subject: Optical Metrology
subject: Optical pathlength differences
subject: Phase difference
subject: Space probes
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: The optical metrology system (OMS) of the LISA Pathfinder mission is measuring the distance between two free-floating test masses with unprecedented precision. One of the four OMS heterodyne interferometers reads out the phase difference between the reference and the measurement laser beam. This phase from the reference interferometer is common to all other longitudinal interferometer read outs and therefore subtracted. In addition, the phase is fed back via the digital optical pathlength difference (OPD) control loop to keep it close to zero. Here, we analyse the loop parameters and compare them to on-ground measurement results.
Involvement of the Azotobacter vinelandii Rhodanese-Like Protein RhdA in the Glutathione Regeneration Pathway
Creators: name: Remelli, William
name: Guerrieri, Nicoletta
name: Klodmann, Jennifer
name: Papenbrock, Jutta
name: Pagani, Silvia
name: Forlani, Fabio
Publisher: name: San Francisco : Public Library of Science
Year: 2012
Subjects: subject: RhdA
subject: Rhodanese-like proteins
subject: Azotobacter vinelandii
subject: Glutathione
subject: Oxidative stress
subject: Thiyl radicals
subject: Settore BIO/10 - Biochimica
subject: Rhodanese
subject: Glutathion
subject: Oxidativer Stress
subject: Thiosulfat-Sulfurtransferase
subject: Azotobacter vinelandii
subject: Glutathion
subject: Oxidativer Stress
subject: Dewey Decimal Classification::500 | Naturwissenschaften::580 | Pflanzen (Botanik)

description: The phenotypic features of the Azotobacter vinelandii RhdA mutant MV474 (in which the rhdA gene was deleted) indicated that defects in antioxidant systems in this organism were related to the expression of the tandem-domain rhodanese RhdA. In this work, further insights on the effects of the oxidative imbalance generated by the absence of RhdA (e.g. increased levels of lipid hydroperoxides) are provided. Starting from the evidence that glutathione was depleted in MV474, and using both in silico and in vitro approaches, here we studied the interaction of wild-type RhdA and Cys(230) Ala site-directed RhdA mutant with glutathione species. We found that RhdA was able to bind in vitro reduced glutathione (GSH) and that RhdA-Cys(230) residue was mandatory for the complex formation. RhdA catalyzed glutathione-disulfide formation in the presence of a system generating the glutathione thiyl radical (GS(.), an oxidized form of GSH), thereby facilitating GSH regeneration. This reaction was negligible when the Cys230 Ala RhdA mutant was used. The efficiency of RhdA as catalyst in GS(.)-scavenging activity is discussed on the basis of the measured parameters of both interaction with glutathione species and kinetic studies.
Preliminary results on the suppression of sensing cross-talk in LISA Pathfinder
Creators: name: Wanner, G.
name: Karnesis, N.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: Chemical reactions
subject: Frequency bands
subject: Space probes
subject: Cross-couplings
subject: Crosstalk noise
subject: LISA Pathfinder
subject: Noise suppression
subject: Preliminary analysis
subject: Spacecraft motion
subject: Crosstalk
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: In the original paper describing the first measurements performed with LISA Pathfinder, a bulge in the acceleration noise was shown in the 200 mHz - 20 mHz frequency band. This bulge noise originated from cross-coupling of spacecraft motion into the longitudinal readout and it was shown that it is possible to subtract this cross-talk noise. We discuss here the model that was used for subtraction as well as an alternative approach to suppress the cross talk by realignment of the test masses. Such a realignment was performed after preliminary analysis of a dedicated cross-talk experiment, and we show the resulting noise suppression. Since then, further experiments have been performed to investigate the cross-coupling behaviour, however analysis of these experiments is still on-going. © Published under licence by IOP Publishing Ltd.
The star-forming progenitors of massive red galaxies
Creators: name: Cattaneo, Andrea
name: Woo, Joanna
name: Dekel, Avishai
name: Faber, Sandra M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: The link between massive red galaxies in the local Universe and star-forming galaxies at high redshift is investigated with a semi-analytic model that has proven successful in many ways, e.g. explaining the galaxy colour-magnitude bimodality and the stellar mass-age relation for red-sequence galaxies. The model is used to explore the processes that drive star formation in different types of galaxies as a function of stellar mass and redshift. We find that most z=2-4 star-forming galaxies with M_*>10^10 M_Sun evolve into red-sequence galaxies. Also, most of the massive galaxies on the red-sequence today have passed through a phase of intense star formation at z>2. Specifically, ~ 90% of today's red galaxies with M_*>10^11 M_Sun were fed during this phase by cold streams including minor mergers. Gas-rich major mergers are rare and the effects of merger-driven starbursts are ephemeral. On the other hand, major mergers are important in powering the most extreme starbursts. Gas-rich mergers also explain the tail of intermediate-mass red galaxies that form relatively late, after the epoch of peak star formation. In two thirds of the currently red galaxies that had an intense star formation event at $z<1$, this event was triggered by a merger.
description: 15 pages, 11 figures, accepted for publication on MNRAS
Cultivating Social Capital - Resilience Against Adversity
Creators: name: Vasconcelos, Thiago
Publisher: name: Hannover : Regionales Bauen und Siedlungsplanung, Leibniz Universität Hannover
Year: 2020
Subjects: subject: food production
subject: future scenario
subject: architecture
subject: climate change
subject: resilience
subject: Konferenzschrift
subject: Dewey Decimal Classification::300 | Sozialwissenschaften, Soziologie, Anthropologie::360 | Soziale Probleme, Sozialdienste, Versicherungen
subject: Dewey Decimal Classification::600 | Technik::630 | Landwirtschaft, Veterinärmedizin
subject: Dewey Decimal Classification::700 | Künste, Bildende Kunst allgemein::720 | Architektur

description: Based upon the fieldtrip and context analysis developed during the Master Architecture and Extreme Environments at KADK Copenhagen, the work described in this paper explores the resilience of food supply system, connected to extreme scenario development and socio-political trends, largely impacted by climate changes in Alaska, USA. A specific design focus has been set in the city of Anchorage where the project Permabioreactor explores new modalities for combined cultivation of super-nutrients, such as Algae, which sequesters excess carbon dioxide. This results in activating a process of circular economy, by providing a source of food and alleviate the impact of onset permafrost thaw because of the warming climate. Introducing a critical discussion on how scenario building methodology could be a strategic tool for planning against uncertainty, the contribution deals with themes across food production and security, energy resources and population distributions and development.
Blockchain-based Services in the Machinery and Plant Engineering Industry
Creators: name: Voswinckel, Themo
name: Schuh, Günther
name: Stich, Volker
name: Reschke, Jan
Publisher: name: Hannover : publish-Ing.
Year: 2020
Subjects: subject: Blockchain
subject: Digital Services
subject: Blockchain-based Services
subject: Machinery and Plant Engineering Industry
subject: Konferenzschrift
subject: Dewey Decimal Classification::600 | Technik::620 | Ingenieurwissenschaften und Maschinenbau

description: A large number of product-accompanying services in the machinery and plant engineering industry is based on the cross-company exchange of data and information. By providing services, additional sales potential on the manufacturer side as well as far-reaching product and process advantages for appliers can be reached. However, the necessary cross-company exchange of information is nowadays limited due to a lack of trust in the interacting partner and the applicable existing technologies, which results in significant losses in the terms of business potential. The uncovering of this potential now seems to be made possible by the use of the Blockchain technology. Through the key factors security, immutability, transparency and decentralisation, it serves as an enabler for cross-company communication and product-accompanying services. The technological implementation of a Blockchain can take on a broad spectrum of attributes, which can lead to decisive restrictions for the execution of services. This justifies the necessity for a qualified and context-related assessment of service-types-individual specifications and the resulting requirements on the system. Within the scope of this paper, different types of product-accompanying services are identified and analysed regarding their requirements for a Blockchain-based machinery and plant connection. This can serve as a basis for a qualified and goal-oriented configuration of the Blockchain.
Radiation pressure calibration and test mass reflectivities for LISA Pathfinder
Creators: name: Korsakova, N.
name: Kaune, B.
Publisher: name: Bristol : Institute of Physics Publishing
Year: 2017
Subjects: subject: Pressure
subject: Reflection
subject: Space probes
subject: Beam modulation
subject: Differential displacements
subject: LISA Pathfinder
subject: Optical Metrology
subject: Radiation pressure
subject: Reference beams
subject: Scientific output
subject: Unknown quantity
subject: Photodiodes
subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: This paper describes a series of experiments which were carried out during the main operations of LISA Pathfinder. These experiments were performed by modulating the power of the measurement and reference beams. In one series of experiments the beams were sequentially switched on and off. In the other series of experiments the powers of the beams were modulated within 0.1% and 1% of the constant power. These experiments use recordings of the total power measured on the photodiodes to infer the properties of the Optical Metrology System (OMS), such as reflectivities of the test masses and change of the photodiode efficiencies with time. In the first case the powers are back propagated from the different photodiodes to the same place on the optical bench to express the unknown quantities in the measurement with the complimentary photodiode measurements. They are combined in the way that the only unknown left is the test mass reflectivities. The second experiment compared two estimates of the force applied to the test masses due to the radiation pressure that appears because of the beam modulations. One estimate of the force is inferred from the measurements of the powers on the photodiodes and propagation of this measurement to the test masses. The other estimation of the force is done by calculating it from the change in the main scientific output of the instrument - differential displacement of the two test masses. © Published under licence by IOP Publishing Ltd.
Deployment of the VITIGEOSS cloud-based application portal
Creators: name: Bastidas, Ernesto
Publisher: name: Zenodo
Year: 2021

description: This document addresses the developments and deployment phase of the VitiGEOSS cloud-based application portal and informs on deliverable 3.2, which is a demonstrator. Section 1 presents the solution and architecture describing the functionality of each of the components for the visualisation and exchange of the information among partners in VitiGEOSS. Section 2 presents a set of mock-ups describing both the Application and API Service Store. They serve as guideline to describe the features co-designed with the end-users and intelligent service providers to present the different services and functionality for authenticating the APIs. A preliminary set of standards are defined to facilitate the exchange of information, which will be addressed and further elaborated when configurating the intelligent services into the VitiGEOSS application. Section 3 presents a functional demonstrator, based on FieldLook, to access and visualise the information for one of the end-users. Also, the functionality of API Service store is demonstrated with APIs provided by the intelligent service providers. Section 4 summarises the actions to be developed with the project partners including the implementation of the VitiGEOSS layout and configuration of the intelligent services and functional tests. These actions will be coordinated and reported accordingly as part of the project in other deliverables.
Mapping Flows in the Cassava, Rice, Milk, and Fish Supply Chains of the Eastern Democratic Republic of the Congo: Is There Any Quiet Revolution Taking Place?
Creators: name: Marivoet, Wim
name: Ulimwengu, John M.
name: Cisse, Abdallah
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Computational Biology

description: By applying a stacked survey approach to farmers, processors, and intermediaries, this study estimates and maps aggregate flows of fresh and processed cassava, rice, milk, and fish within the Bukavu-Uvira-Kalemie economic corridor of the Eastern Democratic Republic of the Congo (DRC). To achieve this, we develop and implement a comprehensive accounting method to better capture the complex set of activities within all four supply chains as well as an alignment procedure to ensure consistency in flows across their stacks. Apart from operating beyond mere subsistence levels, the findings of this study indicate that much of the vibrant agri-food value chain (AVC) developments observed in other low- and middle-income countries (LMIC) are yet to occur in the Eastern DRC: processing levels and new product development are low; intermediaries remain very present in agri-food markets; food losses are high in the midstream segments; and advance payments to farmers have not disappeared. While these observations provide for a dissonant case study, it underscores the huge potential for future upgrading of AVC in the Eastern DRC.
Glycemic index and microstructure analysis of a newly developed fiber enriched cookie
Creators: name: Schuchardt, Jan Philipp
name: Wonik, Jasmin
name: Bindrich, Ute
name: Heinemann, Michaela
name: Kohrs, Heike
name: Schneider, Inga
name: Möller, Katharina
name: Hahn, Andreas
Publisher: name: Cambridge : Royal Society of Chemistry
Year: 2015
Subjects: subject: nutrition
subject: glycemic index
subject: food
subject: cookie
subject: fiber
subject: fibre
subject: diabetes mellitus
subject: glucose release
subject: digestion
subject: insulin concentration
subject: laser scanning microscopy
subject: starch granules
subject: Ernährung
subject: Glykämischer Index
subject: Diabetes mellitus
subject: Nahrungsmittel
subject: Gebäck
subject: Anreicherung
subject: Ballaststoff
subject: Verzehr
subject: Verdauung
subject: Glucosefreisetzung
subject: Insulinkonzentration
subject: Laser Scanning Mikroskopie
subject: Stärke
subject: Ernährung
subject: Glykämischer Index
subject: Diabetes mellitus
subject: Lebensmittel
subject: Plätzchen
subject: Ballaststoff
subject: Verdauung
subject: Insulin
subject: Glucose
subject: Freisetzung
subject: Laser-Rastermikroskopie
subject: Stärke
subject: Dewey Decimal Classification::600 | Technik::610 | Medizin, Gesundheit

description: A diet with a high glycemic index (GI) is associated with an elevated risk for obesity or type 2 diabetes. We investigated the GI of a newly-developed fiber enriched cookie and characterized the microstructure of ingredients used. In a study with 26 non-diabetic healthy volunteers it was shown that the fiber enriched cookie has a GI of 58.9 in relation to white bread as reference. Using a conversion factor of 1.4, the GI of the fiber enriched cookie in relation to a glucose-solution is 42.0 and can be classified as a low-GI food. Postprandial insulin concentration was significantly lower after consumption of fiber enriched cookies compared to white bread. Glucose release after in vitro digestion was significantly lower from fiber enriched cookies compared to other cookies tested. In addition to its high percentage of fiber, the cookies’ low GI can be attributed to the limited gelatinization potential of the starch granules found in the ingredients used. Using confocal laser scanning microscopy it is shown that starch granule surface area of whole grain barley flour, spelt flour and oat flakes bears cluster-shaped protein–NSPS complexes that preferentially absorb water in conditions of water shortage and thereby prevent starch gelatinization.
Multivector Differential Calculus
Creators: name: Hitzer, Eckhard
Publisher: name: arXiv
Year: 2013
Subjects: subject: History and Overview (math.HO)
subject: FOS: Mathematics

description: Universal geometric calculus simplifies and unifies the structure and notation of mathematics for all of science and engineering, and for technological applications. This paper treats the fundamentals of the multivector differential calculus part of geometric calculus. The multivector differential is introduced, followed by the multivector derivative and the adjoint of multivector functions. The basic rules of multivector differentiation are derived explicitly, as well as a variety of basic multivector derivatives. Finally factorization, which relates functions of vector variables and multivector variables is discussed, and the concepts of both simplicial variables and derivatives are explained. Everything is proven explicitly in a very elementary level step by step approach. The paper is thus intended to serve as reference material, providing a number of details, which are usually skipped in more advanced discussions of the subject matter. The arrangement of the material closely follows {chapter 2 of D. Hestenes, G. Sobczyk, Clifford Algebra to Geometric Calculus, Kluwer, Dordrecht, 1999}.
description: 43 pages
Nonlinearity of quartic rotation symmetric Boolean functions
Creators: name: Yang, Liping
name: Wu, Rongjun
name: Hong, Shaofang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Information Theory (cs.IT)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: Nonlinearity of rotation symmetric Boolean functions is an important topic on cryptography algorithm. Let $e\ge 1$ be any given integer. In this paper, we investigate the following question: Is the nonlinearity of the quartic rotation symmetric Boolean function generated by the monomial $x_0x_ex_{2e}x_{3e}$ equal to its weight? We introduce some new simple sub-functions and develop new technique to get several recursive formulas. Then we use these recursive formulas to show that the nonlinearity of the quartic rotation symmetric Boolean function generated by the monomial $x_0x_ex_{2e}x_{3e}$ is the same as its weight. So we answer the above question affirmatively. Finally, we conjecture that if $l\ge 4$ is an integer, then the nonlinearity of the rotation symmetric Boolean function generated by the monomial $x_0x_ex_{2e}...x_{le}$ equals its weight.
description: 10 pages
Effects of Government Jobs on the Labour Market in Bangladesh
Creators: name: Pervin, Shahida
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Science Policy
subject: Mental Health

description: This paper empirically studies the implications of attractive government jobs for labour market. Exploiting an age ceiling policy that sets the age limit for eligibility for public employment at age 30, the study finds that the likelihood of private sector employment is about five percentage points higher for ineligible than eligible at the cutoff age of 30, mainly driven by females, particularly after doubling the public service salaries. The increase in employment after expiring the eligibility for government jobs is explained by increasing labour force participation rather than declining unemployment. During the eligibility period, candidates repeatedly try for government jobs and delay the pursuit of other opportunities, incurring substantial monetary expenses, time costs, and opportunity costs of time. At the same time, there is some evidence that public sector exam preparation gives rise to brain gain. While several papers studied this phenomenon theoretically, this study contributes by providing empirical evidence. The data for this study was drawn from population censuses and labour force surveys for the period 1991–2017 and a primary survey conducted online for this study in Bangladesh, and labour force surveys of India for 2011–2012, 2017–2018, and 2019–2020.