cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Photovoltaics in Market-Related Support Systems: Revenue Depending on Forecast Quality and Spatial Spread
Creators: name: Woyte, A.
name: Kreutzkamp, P.
name: Gammoh, O.
name: De Decker, J.
name: De Brabandere, K.
Publisher: name: WIP
Year: 2012
Subjects: PV - a Major Electricity Source
PV in the Electricity Mix

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 4594-4597
description: The market integration of photovoltaics (PV) is a prerequisite for full competitiveness of PV with conventional
power. For the nomination of PV electricity on the day-ahead market a generation forecast is needed. The authors
have investigated different forecast methodologies, evaluated in how far the accuracy of such a forecast improves
with a wider-spread PV portfolio and have simulated the trade of 104 differently sized and differently spread
portfolios on the EPEX spot market. As expected a better forecast can significantly lower the imbalance costs on
the day-after market; however, an accurate forecast does not necessarily result in higher net revenue. On the
contrary the imbalance system of Germany even favors strategic over- nomination. This gaming on the day-ahead
and imbalance market with wrong forecast can increase system imbalances unnecessarily and in consequence
increase the overall imbalance costs. In conclusion, the findings of this paper question the efficiency and design
of the current imbalance system in Germany and any equally designed system.
Strategies of a deregulated Canadian airline industry
Creators: name: Laviolette, Julie Marie
Publisher: name: University of British Columbia
Year: 2010

description: The U.S. airline industry's experience under a regime of deregulation, as well as the potential forms of strategic interaction in a duopoly are examined in order to determine what strategies Canada's two major carriers should adopt in the deregulated Canadian airline industry. The following recommendations are made to Air Canada and to Canadian Airlines International regarding price, service, and network strategies. First, the carriers should strengthen their hub and spoke operations (i.e. by further consolidating feeder carriers, and offering a high quality of service network-wide). Second, the airlines should strive to control costs (i.e. by reducing labour and fuel costs, while capitalizing on the potential economies of scope attainable through international operations). Finally, the carriers should apply their marketing expertise (i.e. by continuing to develop their yield management systems and frequent flier programs, as well as adopting innovative, new pricing strategies).
Lorentzian and signature changing branes
Creators: name: Mars, Marc
name: Senovilla, José M. M.
name: Vera, Raül
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: General hypersurface layers are considered in order to describe brane-worlds and shell cosmologies. No restriction is placed on the causal character of the hypersurface which may thus have internal changes of signature. Strengthening the results in our previous letter [1], we confirm that a good, regular and consistent description of signature change is achieved in these brane/shells scenarios, while keeping the hypersurface and the bulk completely regular. Our formalism allows for a unified description of the traditional timelike branes/shells together with the signature-changing, or pure null, ones. This allows for a detailed comparison of the results in both situations. An application to the case of hypersurface layers in static bulks is presented, leading to the general Robertson-Walker geometry on the layer --with a possible signature change. Explicit examples on anti de Sitter bulks are then studied. The permitted behaviours in different settings ($Z_{2}$-mirror branes, asymmetric shells, signature-changing branes) are analysed in detail. We show in particular that (i) in asymmetric shells there is an upper bound for the energy density, and (ii) that the energy density within the brane vanishes when approaching a change of signature. The description of a signature change as a `singularity' seen from within the brane is considered. We also find new relations between the fundamental constants in the brane/shell, its tension, and the cosmological and gravitational constants of the bulk, independently of the existence or not of a change of signature.
description: 23 pages, 2 figures
Hyperbolic Metamaterials via Hierarchical Block Copolymer Nanostructures
Creators: name: Murataj, I.
name: Channab, M.
name: Cara, E.
name: Pirri, C. F.
name: Boarino, L.
name: Angelini, A.
name: Lupi, F. Ferrarese
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Hyperbolic metamaterials (HMMs) offer unconventional properties in the field of optics, enabling opportunities for confinement and propagation of light at the nanoscale. In-plane orientation of the optical axis, in the direction coinciding with the anisotropy of the HMMs, is desirable for a variety of novel applications in nanophotonics and imaging. Here, a method for creating localized HMMs with in-plane optical axis, based on block copolymer (BCP) blend instability, is introduced. The dewetting of BCP thin film over topographically defined substrates generates droplets composed of highly ordered lamellar nanostructures in hierarchical configuration. The hierarchical nanostructures represent a valuable platform for the subsequent pattern transfer into a Au/air HMM, exhibiting hyperbolic behavior in a broad wavelength range in the visible spectrum. A computed Purcell factor as high as 32 at 580 nm supports the strong reduction in the fluorescence lifetime of defects in nanodiamonds placed on top of the HMM.
description: This is the pre-peer reviewed version of the following article: I. Murataj et al. Adv. Optical Mater. 2021, 2001933, which has been published in final form at https://doi.org/10.1002/adom.202001933. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions
Over 20%-Efficient Laser-Doped Passivated Rear Contact Solar Cells on Industrial-Sized Commercial Grade p-Type CZ Wafers
Creators: name: Sugianto, A.
name: Hallam, B.
name: Bai, X.
name: Wang, Z.
name: Han, P.
name: Lu, H.
name: Mai, L.
name: Wenham, S.R.
name: Shi, Z.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 700-705
description: Despite recent improvements in front surface design of commercially manufactured silicon solar cells,
device loss analysis shows that the full metal/Si interface at the rear surface fundamentally limits their cell efficiencies to
below 20%. In this work, improvements in rear surface design are proposed by incorporating key attributes of the worldrecord
Passivated Emitter and Passivated Emitter and Rear Locally-diffused cell structure, yet using commercially viable
manufacturing processes and equipment. Combined with the excellent front surface design of Pluto technology, the
optimised rear surface design resulted in independently-confirmed cell efficiencies >20% on industrial-sized p-type CZ
wafers, with a pseudo fill factor of ~84% and an ideality factor close to unity. PC1D simulations show that further
improvements on rear passivation and laser-doped contact formation suggest the potential for further efficiency increase
well beyond 21%.
On the consistency of coset space dimensional reduction
Creators: name: Chatzistavrakidis, Athanasios
name: Manousselis, Pantelis
name: Prezas, Nikolaos
name: Zoupanos, George
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this letter we consider higher-dimensional Yang-Mills theories and examine their consistent coset space dimensional reduction. Utilizing a suitable ansatz and imposing a simple set of constraints we determine the four-dimensional gauge theory obtained from the reduction of both the higher-dimensional Lagrangian and the corresponding equations of motion. The two reductions yield equivalent results and hence they constitute an example of a consistent truncation.
description: 14 pages
Vaping in Context: Links Among E-cigarette Use, Social Status, and Peer Influence for College Students
Creators: name: Vidana, Savannah
Publisher: name: The University of Texas at Austin
Year: 2021
Subjects: e-cigarette
vape
vape pen
college students
peer influence
peer relationships
social status
social consequences

description: Summary of the journal article “Vaping in Context: Links Among E-cigarette Use, Social Status, and Peer Influence for College Students” by authors Lacey N. Wallace and Michael J. Roche. Covers the methods, results, discussion, and limitations of the article.
Perceived causal attributions and their relationship to grief intensity in early miscarriage
Creators: name: McCall, Marsha Joan
Publisher: name: University of British Columbia
Year: 2010

description: Grief and causal attribution are two of the most commonly observed reactions to early miscarriage, yet little is known about these reactions or whether a relationship exists between them. This exploratory and descriptive correlational study examined the maternal grief intensities, the causal attributions, and the relationship between them in a convenience sample of 15 women who spontaneously aborted at 16 weeks' or less gestation. Women responded to both a written questionnaire and a semi-structured Interview at 6 to 10 weeks post-miscarriage. Their responses Indicated both current and retrospective reactions to their miscarriages. Responses were analysed using nonparametric statistics and content analysis. Maternal grief Intensities were found to vary widely at the time of the miscarriage, but all decreased significantly 6 to 10 weeks later. All women reacted to their miscarriage with attribution-seeking behaviors. The explanations most women formed were comprised of more than one causal attribution. Attributions were observed to have four distinct characteristics. Causal attributions were found to be either philosophical or physically oriented; to be organic, non-specific or maternal/self-blaming In origin; to be either dominant or non-dominant, and/or to refer to causalities immediate or prior to the physical event. At the time of the miscarriage a positive correlation between grief Intensity and maternal/self-blaming attributions and between grief Intensity and philosophical attributions was found. These relationships were not observed 6 to 10 weeks later. A positive correlation was found between grief intensity and attributions to maternal emotions at both the time of the miscarriage and 6 to 10 weeks later.
Reconnection in Marginally Collisionless Accretion Disk Coronae
Creators: name: Goodman, J.
name: Uzdensky, D.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: We point out that a conventional construction placed upon observations of accreting black holes, in which their nonthermal X-ray spectra are produced by inverse comptonization in a coronal plasma, suggests that the plasma is marginally collisionless. Recent developments in plasma physics indicate that fast reconnection takes place only in collisionless plasmas. As has recently been suggested for the Sun's corona, such marginal states may result from a combination of energy balance and the requirements of fast magnetic reconnection.
description: Revised in response to referee. Accepted ApJ. 11 pp., no figures. Uses aastex 5.02
The Impact of Busbar Surface Topology and Solar Cells Soldering Process
Creators: name: Zemen, Y.
name: Teusch, H.-S.
name: Kropke, G.
name: Pingel, S.
name: Held, S.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 2030-2034
description: Soldering has been established as interconnection process in PV module production for many years.
One of the most significant properties during the soldering process is the thermal contact between the busbar and the
ribbon. For optimal heat transfer the surfaces have to be designed for an efficient thermal connection. If the busbar is
not flat or smooth additional thermal resistance is created. This resistance is influenced by busbar flatness, roughness
and thickness. Actual contacts during soldering occur at the peak points of the busbar and the air avoids the heat to
flow. As a consequence the soldering temperature needs to be raised. High soldering temperatures are the main
reason for busbar silver dissolution and silicon damages with short and long-term module degradation consequences.
These type of failures can hardly be investigated with non-destructive tools exist in PV module production.
In this study a profilometer has been used to measure and quantify the busbar roughness, flatness and thickness. The
relationship to the failure mode and soldering quality in term of module reliability concern has been investigated.
Because the high material costs cell manufacturer are seeking ways to minimize the consumption of silver paste per
Watt. This approach enables to determine the suitable busbar topology and optimize the minimum amount of silver
paste for reliable soldering process in PV module production.
Enhanced effect of quark mass variation in 229Th and limits from Oklo data
Creators: name: Flambaum, V. V.
name: Wiringa, R. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The effects of the variation of the dimensionless strong interaction parameter Xq=mq/Lambda{QCD} (mq is the quark mass, Lambda{QCD} is the QCD scale) are enhanced about 1.5 x 10**5 times in the 7.6 eV "nuclear clock" transition between the ground and first excited states in the 229Th nucleus and about 1 x 10**8 times in the relative shift of the 0.1 eV compound resonance in 150Sm.The best terrestrial limit on the temporal variation of the fundamental constants, |delta(Xq)/Xq| < 4 x 10**-9 at 1.8 billion years ago (|d(Xq/Xq)/dt| < 2.2 x 10**-18 y**-1), is obtained from the shift of this Sm resonance derived from the Oklo natural nuclear reactor data. The results for 229Th and 150Sm are obtained by extrapolation from light nuclei where the many-body calculations can be performed more accurately. The errors produced by such extrapolation may be smaller than the errors of direct calculations in heavy nuclei. The extrapolation results are compared with the "direct" estimates obtained using the Walecka model. A number of numerical relations needed for the calculations of the variation effects in nuclear physics and atomic spectroscopy have been obtained: for the nuclear binding energy delta(E)/E ~ -1.45 delta(mq)/mq, for the spin-orbit intervals delta(Eso)/Eso ~ -0.22 delta(mq)/mq, for the nuclear radius delta(r)/r ~ 0.3 delta(mq)/mq (in units of Lambda{QCD}); for the shifts of nuclear resonances and weakly bound energy levels delta(Er) ~ 10 delta(Xq)/Xq MeV.
description: v2: minor corrections to text and references
Hypersymmetric extensions of Maxwell Chern-Simons gravity in (2+1) dimensions
Creators: name: Caroca, Ricardo
name: Concha, Patrick
name: Matulich, Javier
name: Rodríguez, Evelyn
name: Tempo, David
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a consistent way of coupling three-dimensional Maxwell Chern-Simons gravity theory with massless spin-$\frac{5}{2}$ gauge fields. We first introduce the simplest hyper-Maxwell Chern-Simons gravity containing two massless spin-2 fields coupled with a massless Majorana fermion of spin-$\frac{5}{2}$ and whose novel underlying superalgebra is explicitly constructed. Then, we present three alternative hypersymmetric extensions of the Maxwell algebra which are shown to emerge from the Inönü-Wigner contraction procedure of precise combinations of the $\mathfrak{osp}\left(1|4\right)$ and the $\mathfrak{sp}\left(4\right)$ algebras. This allow us to construct distinct types of hyper-Maxwell Chern-Simons theories that extend to include generically interacting non-propagating spin-$4$ fields accompanied by one or two spin-$\frac{5}{2}$ gauge fields.
description: 25 pages
Advanced Modeling of Hot Carrier Effects in 3rd Generation Solar Cells
Creators: name: Tea, E.
name: Levard, H.
name: Hamzeh, H.
name: Le Bris, A.
name: Laribi, S.
name: Aniel, F.
name: Guillemoles, J.F.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
Fundamental Material Studies

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 516-519
description: Theoretical works and simulations have shown a very high upper limit for efficiency of an ideal Hot
Carrier Solar Cell. This limit reaches 86 % under maximal concentration. Such cells require a slowed carriers cooling
which means a reduced electron-phonon interaction or/and long LO phonon lifetimes. This effect has been observed
e.g. in GaAs quantum wells structures. Electron-phonon interaction reduction comes from a bottleneck effect on net
phonon emission for high carrier density, and then shall only occur with thin layer for absorber and highly
concentrated sunlight. Ultimately, this phonon bottleneck arises from the finite lifetime of the emitted LO phonons. In
a HCSC one also needs to prevent heat flow when contacting the hot carrier reservoir with a cold one in metallic
electrodes. This is done by using energy selective contacts allowing carriers only at a specific energy to be extracted.
In this work, we have developed simulations to (i) obtain LO phonon lifetimes (notoriously difficult to measure) and
(ii) evaluate the heating of carrier populations in a realistic absorber.
Absolute and convective instabilities in an inviscid compressible mixing layer
Creators: name: Caillol, P.
name: Ruderman, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We consider the stability of a compressible shear flow separating two streams of different speeds and temperatures. The velocity and temperature profiles in this mixing layer are hyperbolic tangents. The normal mode analysis of the flow stability reduces to an eigenvalue problem for the pressure perturbation. We briefly describe the numerical method that we used to solve this problem. Then, we introduce the notions of the absolute and convective instabilities and examine the effects of Mach number, and the velocity and temperature ratios of each stream on the transition between convective and absolute instabilities. Finally, we discuss the implication of the results presented in this paper for the heliopause stability.
description: 5 pages, 6 figures, accepted by Astronomical Notes (Astron. Nachrichten)
A Giant Molecular Cloud Catalog in the Molecular Disk of the Elliptical Galaxy NGC 5128 (Centaurus A)
Creators: name: Miura, E. R.
name: Espada, D.
name: Hirota, A.
name: Henkel, C.
name: Verley, S.
name: Kobayashi, M.
name: Matsushita, S.
name: Israel, F. P.
name: Vila-Vilaro, B.
name: Morokuma-Matsui, K.
name: Ott, J.
name: Vlahakis, C.
name: Peck, A. B.
name: Aalto, S.
name: Hogerheijde, M.
name: Neumayer, N.
name: Iono, D.
name: Kohno, K.
name: Takemura, H.
name: Komugi, S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the first census of giant molecular clouds (GMCs) complete down to 10$^6 M_{\odot}$ and within the inner 4 kpc of the nearest giant elliptical and powerful radio galaxy, Centaurus A. We identified 689 GMCs using CO(1--0) data with 1" spatial resolution ($\sim 20$ pc) and 2 km/s velocity resolution obtained with the Atacama Large Millimeter/submillimeter Array (ALMA). The $I$(CO)-$N$(H$_2$) conversion factor based on the virial method is $X_{\rm CO}$ = $(2 \pm 1 )\times10^{20}$ cm$^{-2}$(K km/s)$^{-1}$ for the entire molecular disk, consistent with that of the disks of spiral galaxies including the Milky Way, and $X_{\rm CO}$ = $(5 \pm 2)\times10^{20}$ cm$^{-2}$(K km/s)$^{-1}$ for the circumnuclear disk (CND, within a galactocentric radius of 200 pc). We obtained the GMC mass spectrum distribution and find that the best-truncated power-law fit for the whole molecular disk, with index $γ\simeq -2.41 \pm 0.02$ and upper cutoff mass $\sim 1.3 \times 10^{7} M_{\odot}$, is also in agreement with that of nearby disk galaxies. A trend is found in the mass spectrum index from steep to shallow as we move to inner radii. Although the GMCs are in an elliptical galaxy, the general GMC properties in the molecular disk are as in spiral galaxies. However, in the CND, large offsets in the line-width-size scaling relations ($\sim$ 0.3 dex higher than those in the GMCs in the molecular disk), a different $X_{\rm CO}$ factor, and the shallowest GMC mass distribution shape ($γ= -1.1 \pm 0.2$) all suggest that there the GMCs are most strongly affected by the presence of the AGN and/or shear motions.
description: 19 pages, 11 figures, 3 tables, accepted for publication in MNRAS
Debye source representation for type-I superconductors, I
Creators: name: Epstein, Charles L.
name: Rachh, Manas
Publisher: name: arXiv
Year: 2021
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this note, we analyze the classical magneto-static approach to the theory of type I superconductors, and a Debye source representation that can be used numerically to solve the resultant equations. We also prove that one of the fields, $\boldsymbol{J}^-$, found within the superconductor via the London equations, is the physical current in that the outgoing part of the magnetic field is given as the Biot-Savart integral of $\boldsymbol{J}^{-}$. Finally, we compute the static currents for moderate values of London penetration depth, $λ_L,$ for a sphere, a stellarator-like geometry and a two-holed torus.
description: 22 pages, 6 figures. For a description of the paper in forms notation see https://users.flatironinstitute.org/~mrachh/superconductor-forms.pdf
TWO-DIMENSIONAL FINITE IMPULSE RESPONSE ZEROPHASE DESIGN BASED ON A NON-UNIFORM FREQUENCY SAMPLING METHOD
Creators: name: Seelawat Chankaew
name: Chalie Charoenlarpnopparut
Publisher: name: Suaranaree University of Technology
Year: 2014
Subjects: 2-D FIR filter, zero-phase, non-uniform sampling, optimal filter, Lagrange multiplier

description: 3, 21, Suranaree Journal of Science and Technology
Representation of Optical Losses in PV System Yield Estimates
Creators: name: Shikoh, A.
name: Betts, T.R.
name: Williams, S.R.
name: Gottschalg, R.
name: Neumann, D.
name: Prast, M.O.
Publisher: name: WIP
Year: 2012
Subjects: Components for PV Systems
PV Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 3351-3355
description: The findings from a three-year research programme studying specialised textured front glasses and
anti-reflection coatings for PV modules developed by Saint-Gobain confirmed the benefit of introducing cost
effective light-trapping designs. By the mid-point in the study, it was shown that anti-reflection coatings applied to
mono-crystalline silicon modules and front glass texturing applied to poly-crystalline silicon modules resulted in 2.2-
2.9% increase in rated power measured at Standard Test Conditions in the lab, compared to reference modules with
uncoated/untextured glass. Outdoors, the treated modules demonstrated higher specific energy yields also, leading to
absolute energy gains of 3.0-4.3% over the standard modules. While a significant gain was demonstrated, it was
difficult to ascertain whether this was purely due to optical effects, as some suggestion of positive thermal and
spectral effects was also found during data analysis. A continuation study was thus initiated to separate the benefits of
each effect. Achieving this task with outdoor data only is extremely challenging as the natural variation in conditions
results in a complex entanglement of different effects. This paper demonstrates the separation and quantification of
the optical element of the benefits observed for the different coated/textured modules by employing a bespoke indoor
optical measurement rig at the CREST laboratories. Under the controlled lab environment, reflection losses factors
are extracted from a series of electrical measurement tests which expose sample laminates and finished modules to
simulated light at different angles. The results are used to assess the current capability of commercial PV system
simulation software to represent such non-standard module designs in terms of predicted energy yields.
PREVALENCE OF SALMONELLA ASSOCIATED WITH GOATS IN BANGLADESH
Creators: name: Gobindha Kumar Saha
name: Ashit Kumar Paul
name: Samad, Mohamed Abdus
name: Islam, Mohammad Ariful
name: Khan, Mohammad Shahidur Rahman
Publisher: name: Suaranaree University of Technology
Year: 2014
Subjects: Bangladesh, goats, Salmonella, salmonellosis, prevalence, sensitivity

description: 3, 21, Suranaree Journal of Science and Technology
Galaxy Zoo : Morphologies derived from visual inspection of galaxies from the Sloan Digital Sky Survey
Creators: name: Lintott, Chris J.
name: Schawinski, Kevin
name: Slosar, Anze
name: Land, Kate
name: Bamford, Steven
name: Thomas, Daniel
name: Raddick, M. Jordan
name: Nichol, Robert C.
name: Szalay, Alex
name: Andreescu, Dan
name: Murray, Phil
name: Berg, Jan van den
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: In order to understand the formation and subsequent evolution of galaxies one must first distinguish between the two main morphological classes of massive systems: spirals and early-type systems. This paper introduces a project, Galaxy Zoo, which provides visual morphological classifications for nearly one million galaxies, extracted from the Sloan Digital Sky Survey (SDSS). This achievement was made possible by inviting the general public to visually inspect and classify these galaxies via the internet. The project has obtained more than 40,000,000 individual classifications made by ~100,000 participants. We discuss the motivation and strategy for this project, and detail how the classifications were performed and processed. We find that Galaxy Zoo results are consistent with those for subsets of SDSS galaxies classified by professional astronomers, thus demonstrating that our data provides a robust morphological catalogue. Obtaining morphologies by direct visual inspection avoids introducing biases associated with proxies for morphology such as colour, concentration or structual parameters. In addition, this catalogue can be used to directly compare SDSS morphologies with older data sets. The colour--magnitude diagrams for each morphological class are shown, and we illustrate how these distributions differ from those inferred using colour alone as a proxy for morphology.
description: Submitted to MNRAS
Effect of parallel magnetic field on the Zero Differential Resistance State
Creators: name: Romero, N.
name: Mchugh, S.
name: Sarachik, M. P.
name: Vitkalov, S. A.
name: Bykov, A. A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The non-linear zero-differential resistance state (ZDRS) that occurs for highly mobile two-dimensional electron systems in response to a dc bias in the presence of a strong magnetic field applied perpendicular to the electron plane is suppressed and disappears gradually as the magnetic field is tilted away from the perpendicular at fixed filling factor $ν$. Good agreement is found with a model that considers the effect of the Zeeman splitting of Landau levels enhanced by the in-plane component of the magnetic field.
description: 4 pages, 4 figures
BIOPIGEE – Biosicherheitspraktiken für die Schweinehaltung in Europa
Creators: name: Burow, Elke
Publisher: name: Zenodo
Year: 2021
Subjects: biosecurity
pig
Salmonella
hepatitis E virus

description: Abstract of an oral presentation about results from the OHEJP BIOPIGEE project at a conference of the German pig health service of North Rhine-Westphalia on 25th November 2021, Bad Sassendorf/online
Distribution of Naturally Occurring Anthraquinones, Iridoids and Flavonoids from Morinda genus: Chemistry and Biological activity
Creators: name: PHAKHODEE, Wong
Publisher: name: Walailak University
Year: 2012
Subjects: Rubiaceae, Morinda, anthraquinone, iridoid, flavonoid, biological activity

description: 3, 9, Walailak Journal of Science and Technology
A Dual-Memory Architecture for Reinforcement Learning on Neuromorphic Platforms
Creators: name: Olin-Ammentorp, Wilkie
name: Sokolov, Yury
name: Bazhenov, Maxim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2

description: Reinforcement learning (RL) is a foundation of learning in biological systems and provides a framework to address numerous challenges with real-world artificial intelligence applications. Efficient implementations of RL techniques could allow for agents deployed in edge-use cases to gain novel abilities, such as improved navigation, understanding complex situations and critical decision making. Towards this goal, we describe a flexible architecture to carry out reinforcement learning on neuromorphic platforms. This architecture was implemented using an Intel neuromorphic processor and demonstrated solving a variety of tasks using spiking dynamics. Our study proposes a usable energy efficient solution for real-world RL applications and demonstrates applicability of the neuromorphic platforms for RL problems.
description: 20 pages, 6 figures
Towards connectedness and trust : nurses' enactment of their moral agency within an organizational context
Creators: name: Rodney, Patricia Anne
Publisher: name: University of British Columbia
Year: 2010

description: This study describes nurses' ethical perspectives on nursing dying patients in a critical care setting, as well as nurses' responses to their perspectives. The design involved a phenomenological approach, with unstructured interviews with eight critical care nurses used to generate data. The results indicated that nurses' ethical perspectives centered around a theme of senselessness; a senseless decision-making process, the experiences of patients and family members as senseless, and nurses' activities as senseless. Senselessness illustrated the multiple ethical dilemmas inherent in nurses' experiences. Nurses' ethical perspectives also involved their attempts to cope with senselessness by finding new meanings through shifting focus to patient comfort, support of the family, and to nurses' personal philosophies. The situational context of nurses' perspectives was explored in terms of influences on their perspectives. This study supports other recent nursing research identifying prolongation of the process of dying as a significant ethical problem engendering moral distress.
Hot Carrier Solar Cell: From Simulation to Devices
Creators: name: Rodière, J.
name: Levard, H.
name: Delamarre, A.
name: Le Bris, A.
name: Laribi, S.
name: Lombez, L.
name: Guillemoles, J.F.
name: Perez, J.-P.
name: Christol, P.
name: Folliot, H.
name: Tavernier, K.
name: Durand, O.
name: Colin, C.
name: Collin, S.
name: Pelouard, J.-L.
Publisher: name: WIP
Year: 2012
Subjects: Material Studies, New Concepts and Ultra-High Efficiency
New Materials, Cells and Modules

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 89-90
description: Single junction III-V heterostructures based devices could overtake the Shockley-Queisser limit if
thermalisation of photogenerated carriers can be strongly limited as in the hot carrier solar cell concept [1]. Previous
modelling [2] and experiments [3] have shown the interest of Multiple Quantum Wells heterostructures in the
antimonide system and the importance of very thin structures [3,4]. In this paper we report new data on the
thermalisation rates in antimonide and phosphide heterostructures measured at ambient temperature. For the first time
electrical control of hot carrier population is performed on hot carrier heterostructures devices.
A Survey for Fast Transients in the Fornax Cluster of Galaxies
Creators: name: Rau, A.
name: Ofek, E. O.
name: Kulkarni, S. R.
name: Madore, B. F.
name: Pevunova, O.
name: Ajello, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The luminosity gap between novae (M_R < -10) and supernovae (M_R > -14) is well known since the pioneering research of Zwicky and Hubble. Nearby galaxy clusters and concentrations offer an excellent opportunity to search for explosions brighter than classical novae and fainter than supernovae. Here, we present the results of a B-band survey of 23 member galaxies of the Fornax cluster, performed at the Las Campanas 2.5-m Irene duPont telescope. Observations with a cadence of 32 minutes discovered no genuine fast transient to a limiting absolute magnitude of M_B=-9.3 mag. We provide a detailed assessment of the transient detection efficiency and the resulting upper limits on the event rate as function of peak magnitude. Further, we discuss the discoveries of five previously unknown foreground variables which we identified as two flare stars, two W Uma type eclipsing binaries and a candidate delta Scuti/SX Phe star.
description: final version, 13 pages, 15 figures, emulateapj.sty
Chaotic Time-Delay Signature Suppression and Entropy Growth Enhancement Using Frequency-Band Extractor
Creators: name: Guo, Yanqiang
name: Liu, Tong
name: Zhao, Tong
name: Zhang, Haojie
name: Guo, Xiaomin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: By frequency-band extracting, we experimentally and theoretically investigate time-delay signature (TDS) suppression and entropy growth enhancement of a chaotic optical-feedback semiconductor laser under different injection currents and feedback strengths. The TDS and entropy growth are quantified by the peak value of autocorrelation function and the difference of permutation entropy at the feedback delay time. At the optimal extracting bandwidth, the measured TDS is suppressed up to 96% compared to the original chaos, and the entropy growth is higher than the noise-dominated threshold indicating that the dynamical process is noisy. The effects of extracting bandwidth and radio frequencies on the TDS and entropy growth are also clarified experimentally and theoretically. The experimental results are in good agreements with the theoretical results. The skewness of the laser intensity distribution is effectively improved to 0.001 with the optimal extracting bandwidth. This technique provides a promising tool to extract randomness and prepare desired entropy sources for chaotic secure communication and random number generation.
description: 11 pages, 8 figures
Linear response formula for piecewise expanding unimodal maps
Creators: name: Baladi, V.
name: Smania, D.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37C30, 37C40, 37E05

description: The average R(t) of a smooth function with respect to the SRB measure of a smooth one-parameter family f_t of piecewise expanding interval maps is not always Lipschitz. We prove that if f_t is tangent to the topological class of f_0, then R(t) is differentiable at zero, and the derivative coincides with the resummation previously proposed by the first named author of the (a priori divergent) series given by Ruelle's conjecture.
description: We added Theorem 7.1 which shows that the horizontality condition is necessary. The paper "Smooth deformations..." containing Thm 2.8 is now available on the arxiv; see also Corrigendum arXiv:1205.5468 (to appear Nonlinearity 2012)
Performance Comparison of High Efficiency Parasitic Rear Emitter Etched Solar Cells with Conventional Silicon Solar Cells
Creators: name: Rapolu, K.
name: Wijekoon, K.
name: Kumar, P.
name: Yan, F.
name: Chan, A.
name: Zhang, L.
name: Tanner, D.
name: Ponnekanti, H.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 1912-1916
description: Texturing of silicon solar cells is an important process step to improve the performance of the solar cell by increasing optical absorption and minimizing the reflectance on the front side of the cell. A conventional silicon solar cell has both front and rear side textured in a single wet processing step. For advanced solar cell structures, which employ rear side passivation technique and local back contacts instead of a full Aluminum back surface field
(Al-BSF), a planar rear surface is desired. Adding to that, for p-type cells, the parasitic rear emitter region should be etched off to passivate the rear p-type surface. In order to realize the benefits of rear emitter etched cell compared to double side textured cell, solar cells were fabricated with single side textured wafers with parasitic rear emitter removal. This paper compares the I-V parametric performance of baseline solar cells with two different configurations- Baseline (BL)-0: Both side textured solar cell and Baseline (BL)-1: Rear side emitter etched surface solar cell. An improvement of up to 0.3% absolute in cell efficiency is observed with parasitic rear emitter etched wafers compared to double side textured wafers.
Phase diagram of randomly pinned vortex matter in layered superconductors: dependence on the details of the point pinning
Creators: name: Dasgupta, Chandan
name: Valls, Oriol T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We study the thermodynamic and structural properties of the superconducting vortex system in high temperature layered superconductors, with magnetic field normal to the layers, in the presence of a small concentration of strong random point pinning defects via numerical minimization of a model free energy functional in terms of the time-averaged local density of pancake vortices. Working at constant magnetic induction and point pinning center concentration, we find that the equilibrium phase at low temperature ($T$) and small pinning strength ($s$) is a topologically ordered Bragg glass. As $T$ or $s$ is increased, the Bragg glass undergoes a first order transition to a disordered phase which we characterize as a ``vortex slush'' with polycrystalline structure within the layers and interlayer correlations extending to about twenty layers. This is in contrast with the pinned vortex liquid phase into which the Bragg glass was found to melt, using the same methods, in the case of a large concentration of weak pinning centers: that phase was amorphous with very little interlayer correlation. The value of the second moment of the random pinning potential at which the Bragg glass melts for a fixed temperature is very different in the two systems. These results imply that the effects of random point pinning can not be described only in terms of the second moment of the pinning potential, and that some of the unresolved contradictions in the literature concerning the nature of the low $T$ and high $s$ phase in this system are likely to arise from differences in the nature of the pinning in different samples, or from assumptions made about the pinning potential.
description: 13 pages including 11 figures. Typos in HTML abstract corrected in v2
A Search for the 3.5 keV Line from the Milky Way's Dark Matter Halo with HaloSat
Creators: name: Silich, E. M.
name: Jahoda, K.
name: Angelini, L.
name: Kaaret, P.
name: Zajczyk, A.
name: LaRocca, D. M.
name: Ringuette, R.
name: Richardson, J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Previous detections of an X-ray emission line near 3.5 keV in galaxy clusters and other dark matter-dominated objects have been interpreted as observational evidence for the decay of sterile neutrino dark matter. Motivated by this, we report on a search for a 3.5 keV emission line from the Milky Way's galactic dark matter halo with HaloSat. As a single pixel, collimated instrument, HaloSat observations are impervious to potential systematic effects due to grazing incidence reflection and CCD pixelization, and thus may offer a check on possible instrumental systematic errors in previous analyses. We report non-detections of a $\sim$3.5 keV emission line in four HaloSat observations near the Galactic Center. In the context of the sterile neutrino decay interpretation of the putative line feature, we provide 90% confidence level upper limits on the 3.5 keV line flux and 7.1 keV sterile neutrino mixing angle: $F \leq 0.077$ ph cm$^{-2}$ s$^{-1}$ sr$^{-1}$ and $\sin^2(2θ) \leq 4.25 \times 10^{-11}$. The HaloSat mixing angle upper limit was calculated using a modern parameterization of the Milky Way's dark matter distribution, and in order to compare with previous limits, we also report the limit calculated using a common historical model. The HaloSat mixing angle upper limit places constraints on a number of previous mixing angle estimates derived from observations of the Milky Way's dark matter halo and galaxy clusters, and excludes several previous detections of the line. The upper limits cannot, however, entirely rule out the sterile neutrino decay interpretation of the 3.5 keV line feature.
description: accepted for publication in The Astrophysical Journal, 14 pages, 7 figures
Association between sarcoidosis and diabetes mellitus: a systematic review and meta-analysis
Creators: name: Benmelouka, Amira Yasmine
name: Abdelaal, Abdelaziz
name: Mohamed, Ahmed Salah Eldin
name: Shamseldin, Laila Salah
name: Zaki, Mahmoud Mohamed
name: Elsaeidy, Khaled Saad
name: Mahmoud, Mariam Abdelmageed
name: El-Qushayri, Amr Ehab
name: Ghozy, Sherief
name: Islam, Sheikh Mohammed Shariful
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Marine Biology
subject: Science Policy

description: Background: Sarcoidosis is multisystem inflammatory granulomatosis that can potentially affect any organ of the human body. We aimed to estimate the prevalence of diabetes mellitus (DM) in sarcoidosis patients and determine the association between sarcoidosis and DM.Method: All relevant articles reporting the prevalence of DM in sarcoidosis published until September 19th, 2020, were retrieved from ten electronic databases. We used the random effect model to perform the meta-analysis.Results: After screening 2,122 records, we included 19 studies (n = 18,686,162). The prevalence of DM in sarcoidosis patients was 12.7% (95% CI 10–16.1). The prevalence was highest in North America with 21.3% (13.5–31.8), followed by Europe 10.4 (7.9–13.7) and Asia 10% (1.8–39.7). Sarcoidosis patients had higher rates of DM compared to controls (OR 1.75; 95% CI 1.49–2.05). Sensitivity analysis, after removing the largest weighted study, did not reveal any effect on the significance of the results (OR 1.73; 95% CI 1.33–2.25).Conclusion: The prevalence of DM in sarcoidosis is considerably high, with increased odds of DM in sarcoidosis compared to healthy controls. Further research with a wide range of confounders is required to confirm the association of sarcoidosis with DM.
Role of electron and ion irradiation in a reliable lift-off process with e-beam evaporation and a bilayer PMMA resist system
Creators: name: Sun, Bin
name: Grap, Thomas
name: Frahm, Thorben
name: Scholz, Stefan
name: Knoch, Joachim
Publisher: name: arXiv
Year: 2021
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: This paper addresses issues related to cracking and blisters in deposited films encountered in a lift-off process with electron beam evaporation and a bilayer PMMA resist system. The impact of charged particles, i.e. electrons and ions, is investigated using an electron beam evaporation chamber equipped with ring-magnets and a plate electrode placed in front of the sample. By replacing the plate electrode with a hollow cylinder, the modified evaporation setup utilizing passive components allows a complete elimination of resist shrinkage and blistering yielding near perfect deposition results for a large variety of different materials.
description: 9 pages
Status and Perspectives of n-Type Silicon Solar Cells with Aluminium-Alloyed Rear Emitter
Creators: name: Schmiga, C.
name: Rauer, M.
name: Rüdiger, M.
name: Glatthaar, M.
name: Glunz, S.W.
Publisher: name: WIP
Year: 2012
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Improvements

description: 27th European Photovoltaic Solar Energy Conference and Exhibition; 915-918
description: This study summarises a detailed characterisation of structural and electrical properties of full-area and
local aluminium-doped p+ Si (Al-p+) regions alloyed from screen-printed pastes for the application as rear emitters in
n-type silicon solar cells. We discuss the impact of the Al doping profile depth on the saturation current density for
non-passivated and surface-passivated full-area Al-p+ emitters and show the prerequisites for an effective passivation.
The influence of a modified Al paste composition on the alloying process of local Al-p+ structures is demonstrated.
The results of these investigations have enabled us to further improve the performance of our n+np+ Al rear emitter
solar cells featuring a homogeneous phosphorus-diffused n+ front surface field and aerosol-printed and silver-plated
front contacts. For large-area n-type Si solar cells (143.5 cm2) with a full-area surface-passivated Al-p+ rear emitter,
we have achieved a record-high efficiency of 20.0 %. Solar cells with local Al-p+ emitters in the passivated rear Si
surface have reached an efficiency of 19.7 %, fabricated by using a simplified processing sequence and, thus, turning
out to be a very promising cell concept.