cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Cu(InGa)Se2 Solar Cells with Zn(O,S) Buffer Layer by Co-Sputtering of ZnO and ZnS
Creators: name: Minemoto, T.
name: Okamoto, A.
name: Takakura, H.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
CIS and Other (II-VI) Ternary Thin Film Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 3327-3330
description: Zn(O,S) thin films were fabricated for an alternative buffer layer to CdS in Cu(In,Ga)Se2 (CIGS) solar
cells. Currently, the best efficiency of 20% was achieved using chemical bath deposited (CBD) CdS buffer layers.
Cd-free buffer layers fabricated by a dry process are attractive in view of the environmental impact of Cd and to
improve in-line processing for mass production. In this study, the alternative buffer layer of the Zn(O,S) thin films
were prepared by radio-frequency co-sputtering of ZnO and ZnS targets. Using Zn(O,S), the conduction band offset
(CBO) between buffer/CIGS layers can be controlled. CIGS solar cells with an Al-NiCr grid/In2O3:Sn/Zn(O,S)/CIGS
/Mo/soda-lime glass substrate structure were fabricated with various sulfur contents in the Zn(O,S) layer. The trend
of solar cell parameters as a function CBO value was consistent with that predicted in theory. At the S/(O+S) ratio of
0.18, the highest efficiency was obtained and that was 90.5% to a reference ZnO/CdS/CIGS solar cells. The
comparison of the diode parameters of the highest efficiency cell and the reference cell, and optical and structural
properties of the Zn(O,S) thin film were discussed.
Consistent Re-Calibration of the Discrete-Time Multifactor Vasiček Model
Creators: name: Harms, Philipp
name: Stefanovits, David
name: Teichmann, Josef
name: Wüthrich, Mario V.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Mathematical Finance (q-fin.MF)
subject: FOS: Economics and business
subject: 91G30 (Primary), 60J05, 62M05 (Secondary)

description: The discrete-time multifactor Vasiček model is a tractable Gaussian spot rate model. Typically, two- or three-factor versions allow one to capture the dependence structure between yields with different times to maturity in an appropriate way. In practice, re-calibration of the model to the prevailing market conditions leads to model parameters that change over time. Therefore, the model parameters should be understood as being time-dependent or even stochastic. Following the consistent re-calibration (CRC) approach, we construct models as concatenations of yield curve increments of Hull-White extended multifactor Vasiček models with different parameters. The CRC approach provides attractive tractable models that preserve the no-arbitrage premise. As a numerical example, we fit Swiss interest rates using CRC multifactor Vasiček models.
description: 29 pages, 16 figures, 2 tables
Transversal Clifford gates on folded surface codes
Creators: name: Moussa, Jonathan E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Surface and color codes are two forms of topological quantum error correction in two spatial dimensions with complementary properties. Surface codes have lower-depth error detection circuits and well-developed decoders to interpret and correct errors, while color codes have transversal Clifford gates and better code efficiency in the number of physical qubits needed to achieve a given code distance. A formal equivalence exists between color codes and folded surface codes, but it does not guarantee the transferability of any of these favorable properties. However, the equivalence does imply the existence of constant-depth circuit implementations of logical Clifford gates on folded surface codes. We achieve and improve this result by constructing two families of folded surface codes with transversal Clifford gates. This construction is presented generally for qudits of any dimension. The specific application of these codes to universal quantum computation based on qubit fusion is also discussed.
description: 14 pages, 10 figures, major revision and expansion of the original version
Measuring the quality of diamond journals in public universities in Costa Rica
Creators: name: Ramirez-Vega, Alexa
name: Seas-Carvajal, Carolina
Publisher: name: Zenodo
Year: 2023
Subjects: Scholarly Publishing, Open Access, Open Science, Scholarly Communication

description: In Costa Rica, 96% of the scientific journals in the Latindex catalog are published by public universities (LATINDEX, 2023). Additionally, 100% of public university journals are on the diamond route. In Costa Rica, similar to Latin America (Becerril, 2022), journals are financed by publishing institutions, in this case public universities, which has allowed them to remain diamond journals; however, there were no indicators to justify the investment and detect national opportunities for improvement. Due to the above, the need arises to measure the quality of the scientific journals of public universities at the national level, since not all journals apply in selective indexes, which prevents knowing the status of the journals, comparing them with the others and propose actions for improvement. There is a precedent of an institutional index for the evaluation of scientific journals that has been applied since 2011 at the Universidad de Costa Rica (Córdoba González, Murillo Goussen & Polanco-Cortés, 2016), which functioned as the basis for the proposal of public universities and It has a history of the evaluation results that shows the evolution of the journals (UCR Index, 2023). Therefore, an index was created to measure the quality of the journals of public universities in Costa Rica. A national index allows us to monitor the quality of our scientific journals so that decisions can be made for the optimization of resources and the sustainability of all of them in Diamand Route. This index evaluates indicators on editorial management, visibility and content. The index evaluation criteria were statistically validated (Polanco et al. 2021). In the pilot test carried out in 2021, 45 journals were evaluated, which resulted in a normal distribution in the index. In addition to validating the indicators of the index (CONARE, 2023), it allowed obtaining data on the quality of the journals, according to the needs of our country and institutions, giving them closer support to the journals, determining new financing needs for the journals and adequate guidance in decision making.
Theta operators, Goss polynomials, and v-adic modular forms
Creators: name: Papanikolas, Matthew A.
name: Zeng, Guchao
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11F52 (Primary), 11F33, 11G09 (Secondary)

description: We investigate hyperderivatives of Drinfeld modular forms and determine formulas for these derivatives in terms of Goss polynomials for the kernel of the Carlitz exponential. As a consequence we prove that v-adic modular forms in the sense of Serre, as defined by Goss and Vincent, are preserved under hyperdifferentiation. Moreover, upon multiplication by a Carlitz factorial, hyperdifferentiation preserves v-integrality.
description: 20 pages
Topological strength of magnetic skyrmions
Creators: name: Bazeia, D.
name: Ramos, J. G. G. S.
name: Rodrigues, E. I. B.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We deal with magnetic structures that attain integer and half-integer skyrmion numbers. We model and solve the problem analytically, and show how the solutions appear in materials that engender distinct, very specific physical properties, and use them to describe their topological features. In particular, we found a way to model skyrmion with a large transition region correlated with the presence of a two-peak skyrmion number density. Moreover, we run into the issue concerning the topological strength of a vortex-like structure and suggest an experimental realization, important to decide how to modify and measure the topological strength of the magnetic structure.
description: 10 pages; 15 figures; published version
Semiclassical approach to Dynamics of Interacting Fermions
Creators: name: Davidson, Shainen M.
name: Sels, Dries
name: Polkovnikov, Anatoli
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Understanding the behavior of interacting fermions is of fundamental interest in many fields ranging from condensed matter to high energy physics. Developing numerically efficient and accurate simulation methods is an indispensable part of this. Already in equilibrium, fermions are notoriously hard to handle due to the sign problem. Out of equilibrium, an important outstanding problem is the efficient numerical simulation of the dynamics of these systems. In this work we develop a new semiclassical phase-space approach (a.k.a. the truncated Wigner approximation) for simulating the dynamics of interacting fermions in arbitrary dimensions. As fermions are essentially non-classical objects, a phase-space is constructed out of all fermionic bilinears. Classical phase-space is thus comprised of highly non-local (hidden) variables representing these bilinears, and the cost of the method is that it scales quadratic rather than linear with system size. We demonstrate the strength of the method by comparing the results to the exact quantum dynamics of fermion expansion in the Hubbard model and quantum thermalization in the Sachdev-Ye-Kitaev (SYK) model for small systems, where the semiclassics nearly perfectly reproduces correct results. We furthermore analyze fermion expansion in a larger, intractable by exact methods, 2D Hubbard model, which is directly relevant to recent cold atom experiments.
Effect of a Thermal Oxydation Pre-Treatment on Mo to Control the Growth and Formation of MoSe2 Layers for CIGS Solar Cells
Creators: name: Duchatelet, A.
name: Savidand, G.
name: Vannier, R.N.
name: Lincot, D.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
CIS and Other (II-VI) Ternary Thin Film Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 3379-3381
description: The influence of a superficial oxidation of Mo layers deposited on soda-lime glass (Mo/SLG)
substrate on the formation of MoSe2 has been studied on two types of Mo, which differ by their sputtering
deposition parameters. The oxidation was made by annealing under air atmosphere and the selenization by Rapid
Thermal Process (RTP) under selenium atmosphere. The samples were characterized with scanning electron
microscope (SEM) as well as X-ray diffraction (XRD).
It was found that both oxidation and selenization depend on the Mo sputter-deposition parameters. Moreover, we
proved that the formation of MoSe2 can be impeded during CIGS formation by a surface oxidation of the Mo
substrate (depending on the Mo sputter-deposition conditions).
Maps of the Magellanic Clouds from Combined South Pole Telescope and Planck Data
Creators: name: Crawford, T. M.
name: Chown, R.
name: Holder, G. P.
name: Aird, K. A.
name: Benson, B. A.
name: Bleem, L. E.
name: Carlstrom, J. E.
name: Chang, C. L.
name: Cho, H-M.
name: Crites, A. T.
name: de Haan, T.
name: Dobbs, M. A.
name: George, E. M.
name: Halverson, N. W.
name: Harrington, N. L.
name: Holzapfel, W. L.
name: Hou, Z.
name: Hrubes, J. D.
name: Keisler, R.
name: Knox, L.
name: Lee, A. T.
name: Leitch, E. M.
name: Luong-Van, D.
name: Marrone, D. P.
name: McMahon, J. J.
name: Meyer, S. S.
name: Mocanu, L. M.
name: Mohr, J. J.
name: Natoli, T.
name: Padin, S.
name: Pryke, C.
name: Reichardt, C. L.
name: Ruhl, J. E.
name: Sayre, J. T.
name: Schaffer, K. K.
name: Shirokoff, E.
name: Staniszewski, Z.
name: Stark, A. A.
name: Story, K. T.
name: Vanderlinde, K.
name: Vieira, J. D.
name: Williamson, R.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present maps of the Large and Small Magellanic Clouds from combined South Pole Telescope (SPT) and Planck data. The Planck satellite observes in nine bands, while the SPT data used in this work were taken with the three-band SPT-SZ camera, The SPT-SZ bands correspond closely to three of the nine Planck bands, namely those centered at 1.4, 2.1, and 3.0 mm. The angular resolution of the Planck data ranges from 5 to 10 arcmin, while the SPT resolution ranges from 1.0 to 1.7 arcmin. The combined maps take advantage of the high resolution of the SPT data and the long-timescale stability of the space-based Planck observations to deliver robust brightness measurements on scales from the size of the maps down to ~1 arcmin. In each band, we first calibrate and color-correct the SPT data to match the Planck data, then we use noise estimates from each instrument and knowledge of each instrument's beam to make the inverse-variance-weighted combination of the two instruments' data as a function of angular scale. We create maps assuming a range of underlying emission spectra and at a range of final resolutions. We perform several consistency tests on the combined maps and estimate the expected noise in measurements of features in the maps. We compare maps from this work to maps from the Herschel HERITAGE survey, finding general consistency between the datasets. All data products described in this paper are available for download from the NASA Legacy Archive for Microwave Background Data Analysis server.
description: 25 pages, 15 figures. Published in ApJS. All data products described in this paper are available for download at http://pole.uchicago.edu/public/data/maps/magclouds and from the NASA LAMBDA server
Upper bound for SL-invariant entanglement measures of mixed states
Creators: name: Osterloh, Andreas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: An algorithm is proposed that serves to handle full rank density matrices, when coming from a lower rank method to compute the convex-roof. This is in order to calculate an upper bound for any polynomial SL invariant multipartite entanglement measure E. Here, it is exemplifyed how this algorithm works, based on a method for calculating convex-roofs of rank two density matrices. It iteratively considers the decompositions of the density matrix into two states each, exploiting the knowledge for the rank-two case. The algorithm is therefore quasi exact as far as the two rank case is concerned, and it also gives hints where it should include more states in the decomposition of the density matrix. Focusing on the threetangle, I show the results the algorithm gives for two states, one of which being the $GHZ$-Werner state, for which the exact convex roof is known. It overestimates the threetangle in the state, thereby giving insight into the optimal decomposition the $GHZ$-Werner state has. As a proof of principle, I have run the algorithm for the threetangle on the transverse quantum Ising model. I give qualitative and quantitative arguments why the convex roof should be close to the upper bound found here.
description: 4 pages, 4 figures, revtex4
Weakly Hamiltonian actions
Creators: name: Torres, David Martínez
name: Miranda, Eva
Publisher: name: arXiv
Year: 2016
Subjects: subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: In this paper we generalize constructions of non-commutative integrable systems to the context of weakly Hamiltonian actions on Poisson manifolds. In particular we prove that abelian weakly Hamiltonian actions on symplectic manifolds split into Hamiltonian and non-Hamiltonian factors, and explore generalizations in the Poisson setting.
description: 10 pages, the paper has been rewritten with a focus on the Poisson setting. Motivating examples have been added. The final version will appear at the Journal of Geometry and Physics
The Effect of Dielectric Layer in CIGS Thin-Film Solar Cells Fabricated on Stainless-Steel Substrate
Creators: name: Chung, Y.D.
name: Han, W.S.
name: Cho, D.H.
name: Park, N.M.
name: Lee, K.S.
name: Kim, J.
name: Oh, S.Y.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
CIS and Other (II-VI) Ternary Thin Film Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 3395-3397
description: We have investigated the effect of dielectric barrier on the performance of Cu(In,Ga)Se2 (CIGS) solar
cells fabricated on stainless-steel substrates. A dielectric layer of intrinsic ZnO (i-ZnO) or SiOx was sandwiched
between the substrate and the Na-doped Mo contact as the diffusion barrier to impurities from the stainless-steel
substrate, whereas the Na-doped Mo layer supplies Na to the absorber. The efficiency of CIGS solar cell is greatly
enhanced when a barrier of either i-ZnO or SiOx is employed. For instance, the efficiencies of CIGS solar cells
without the barrier, with the SiOx barrier, and with the i-ZnO barrier are 7.47, 11.64, and 13.95 %, respectively
without anti-reflection coating.
title: 'Trying to get through the day': Exploring the social contexts of alcohol and pregnancy
Creators: name: Taylor, Annie
Publisher: name: Edinburgh Napier University
Year: 2022

description: Background: Many factors, including alcohol consumption, may affect a baby’s likelihood of being born with Foetal Alcohol Spectrum Disorders (FASD), yet most qualitative research does not explore contextual factors or the perspectives of women who drink at ‘high risk’ levels.

Aim: The aim of this study was to explore the views and experiences of women who drink (or drank) during pregnancy, and professionals who provide treatment and care for pregnant women drinkers, including how various aspects of women’s lives intersect with one another and with alcohol consumption.

Methods: Drawing on feminist standpoint theory, intersectionality theory and feminist fractured foundationalism, semi-structured photo-elicitation interviews and focus groups were undertaken with 14 women, including 3 who had been involved with specialist services, and 10 specialist practitioners in the UK. These were analysed using a narrative-informed approach to reflexive thematic analysis.

Findings: Participants described a range of interconnected contextual factors as important in relation to drinking during pregnancy, including poverty, trauma, and social factors. Women who had been involved with specialist services during pregnancy had all experienced multiple intersecting adversities, mediated by structural inequalities, which affected every part of their lives including their drinking. This thesis demonstrates the importance of taking women’s contexts into account when attempting to understand and respond to drinking during pregnancy, but suggests that current structures, policies, and narratives based around individual responsibility, reproductive citizenship and child protection render services unable to offer intensive support for women’s complex contexts. The current policy approach may instead add further adversity and exacerbate women’s powerlessness.

Conclusion: This thesis reframes drinking during pregnancy as a social issue. It argues for a social approach to drinking during pregnancy based on principles of anti-oppressive policy and practice, to provide effective care and support for women who may be at a higher risk of having a baby with FASD.
Tra.Q - Laser Marking for Single Wafer Identification - Production Experience from 100 Million Wafers
Creators: name: Wanka, S.
name: Rychtarik, D.
name: Müller, J.
name: Geißler, S.
name: Kappe, P.
name: Thormann, S.
name: Spallek, M.
name: Vom Bauer, U.
name: Ludwig, C.
name: Wawer, P.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Manufacturing Issues and Processing

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1104-1106
description: Single wafer identification is a mandatory element of a modern solar cell production. It accelerates the
efficiency roadmap of the solar cell and fosters the cost reduction roadmap of the fabrication. The laser marking concept
Tra.Q creates an individual code on each and every wafer. This makes process optimization and quality control easier and
faster. The solar cells are 100% traceable along the whole value chain. A large statistical database is available. Typically,
the code for the individual tracking is engraved onto the bare wafer before the manufacturing process. Special care is
taken to make the code readable at all process steps. The main benefits of the single wafer identification are faster
learning in production, steeper ramp curves for the introduction of innovations, improved quality control of materials and
of products from the suppliers, enhanced transparency to the customer. Laser marking has successfully completed its way
from the research level to full mass production. With over 100 million solar cells fabricated, capability of mass
production has been proven.
Dynamics of a two-level system under strong driving: quantum gate optimization based on floquet theory
Creators: name: Deng, Chunqing
name: Shen, Feiruo
name: Ashhab, Sahel
name: Lupascu, Adrian
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider the dynamics of a two-level system (qubit) driven by strong and short resonant pulses in the framework of Floquet theory. First we derive analytical expressions for the quasienergies and Floquet states of the driven system. If the pulse amplitude varies very slowly, the system adiabatically follows the instantaneous Floquet states, which acquire dynamical phases that depend on the evolution of the quasienergies over time. The difference between the phases acquired by the two Floquet states corresponds to a qubit state rotation, generalizing the notion of Rabi oscillations to the case of large driving amplitudes. If the pulse amplitude changes very fast, the evolution is non-adiabatic, with transitions taking place between the Floquet states. We quantify and analyze the nonadiabatic transitions during the pulse by employing adiabatic perturbation theory and exact numerical simulations. We find that, for certain combinations of pulse rise and fall times and maximum driving amplitude, a destructive interference effect leads to a remarkably strong suppression of transitions between the Floquet states. This effect provides the basis of a quantum control protocol, which we name Floquet Interference Efficient Suppression of Transitions in the Adiabatic basis (FIESTA), that can be used to design ultra-fast high-fidelity single-qubit quantum gates.
title: Key motivations influencing PMEs’ decision to pursue a Master’s degree via PEIs in Singapore
Creators: name: Tan, Calvin Shimin
Publisher: name: Edinburgh Napier University
Year: 2022

description: The influx of new graduates in Singapore has created a scenario of oversupply that makes it more difficult for people to get hired in a career field that they desire. People commonly tend to believe that with higher levels of education, they are more likely to be employed, and remain employed. The perception that a private degree education is a “second chance” for those not accepted into public universities is prevalent among the general public in Singapore and yet over the years, enrolment in private universities is on the rise.

This study explores this phenomenon by investigating the lived experience of a group of 9 Private Education institutions (PEI’s) alumni and provides insights as to why studying for a master’s degree in PEI is a preferred choice. These valuable insights on their perception of the value of studying master’s degree with a PEI could help PEIs in marketing their programmes to future students as not being the second-best option but as an empowering option for those seeking to remain in a job while studying.

A qualitative research method was chosen to obtain information about these alumni’s experiences and perceptions of impact, which are situated in the context of their backgrounds, career trajectories and circumstances. Quotes from the transcripts were then used to illustrate the issues raised by the research questions. Through thematic analysis, the quotes from the interviews were categorised into themes and discussions were carried out to link to the past research and literature reviewed in this study.

The findings indicate that while many had found part-time programmes challenging, in terms of studies around their (often full-time) employment and other personal commitments in life, the very flexible delivery of PEI programmes had enabled them to cope and succeed in completing and obtaining the qualification. Other findings from the interviews such as personal information have provided a deep understanding of the context for the motivations, experiences and benefits perceived by the alumni. This study concludes that the three main influences cited by the participants to study in a PEI were perceived value, cost and flexibility. Most of these participants also saw their master’s degree study as a medium or long-term investment towards an enhanced career through higher-level employment. Hence, the reputation of the university is considered secondary important. These findings not only have contributed to an area of limited study in Singaporean higher education, but more importantly, they have also provided insights to PEIs in marketing their programmes.
New Procedure for Measuring Dynamic MPP-Tracking Efficiency at Grid-Connected PV Inverters
Creators: name: Häberlin, H.
name: Schärf, P.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
Balance of System Components

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3631-3637
description: At locations, where there are often variable cloudy conditions, besides the static also the dynamic
MPPT-behaviour has to be considered. In the long-term monitoring projects performed by the PV laboratory of BFHTI,
it could be shown that dynamic MPP-tracking problems actually occur. In a paper presented at the 21st EU PV
conference in 2006, first results of dynamic MPP-tracking tests carried out with quasi rectangular variations between
two different power levels were presented [3]. Such tests can easily be realised with high measurement accuracy and
give a good insight in the control behaviour of the inverter.
More realistic are tests with ramps with rising and falling slopes of current (proportional to irradiance G) or MPPpower.
It is more difficult to realise such tests with a high measuring accuracy. Like for static tests, before the start of
a dynamic MPP-tracking test an initial set-up time is needed for stabilisation of the MPP-tracker in order to have a
defined starting position. This stabilisation period is followed by a few test cycles during the actual measuring period
TM. Inverters are always a little behind the effective MPP, therefore the offered MPP-power is not absorbed
completely after a change. In this paper, these test patterns (according to the proposed new standard for inverter performance
FprEN50530), results of many tests with them at different inverters and possible problems are discussed.
Test of the Weak Equivalence Principle using LIGO observations of GW150914 and Fermi observations of GBM transient 150914
Creators: name: Liu, Molin
name: Zhao, Zonghua
name: You, Xiaohe
name: Lu, Jianbo
name: Xu, Lixin
Publisher: name: arXiv
Year: 2016
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: About 0.4s after the Laser Interferometer Gravitational-Wave Observatory (LIGO) detected a transient gravitational-wave (GW) signal GW150914, the Fermi Gamma-ray Burst Monitor (GBM) also found a weak electromagnetic transient (GBM transient 150914). Time and location coincidences favor a possible association between GW150904 and GBM transient 150914. Under this possible association, we adopt Fermi's electromagnetic (EM) localization and derive constraints on possible violations of the Weak Equivalence Principle (WEP) from the observations of two events. Our calculations are based on four comparisons: (1)The first is the comparison of the initial GWs detected at the two LIGO sites. From the different polarizations of these initial GWs, we obtain a limit on any difference in the parametrized post-Newtonian (PPN) parameter $Δγ\lesssim 10^{-10}$. (2) The second is a comparison of GWs and possible EM waves. Using a traditional super-Eddington accretion model for GBM transient 150914, we again obtain an upper limit $Δγ\lesssim 10^{-10}$. Compared with previous results for photons and neutrinos, our limits are five orders of magnitude stronger than those from PeV neutrinos in blazar flares, and seven orders stronger than those from MeV neutrinos in SN1987A. (3) The third is a comparison of GWs with different frequencies in the range [35 Hz, 250 Hz]. (4) The fourth is a comparison of EM waves with different energies in the range [1 keV, 10 MeV]. These last two comparisons lead to an even stronger limit, $Δγ\lesssim 10^{-8}$. Our results highlight the potential of multi-messenger signals exploiting different emission channels to strengthen existing tests of the WEP.
description: 9 pages, 4 figures, accepted for publication in Physics Letters B
Outdoor Characterisation and Modelling of Thin-Film Modules and Technology Benchmarking
Creators: name: Sutterlueti, J.
name: Sinicco, I.
name: Hügli, A.
name: Hälker, T.
name: Ransome, S.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Components for PV Systems
PV Modules

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 3198-3205
description: PV modules sometimes perform quite differently in real world conditions from what their indoor characterisation and
subsequent corrections for irradiance, spectrum, temperature, angle of incidence and beam/(beam+diffuse) fraction would
predict. This can be particularly true for thin film devices with their seasonal annealing, spectral sensitivity (due to relatively
narrow wavelength absorption windows and/or series connected multijunction cells) plus any degradation or stabilisation
with time.
It is important to understand the true nature of outdoor performance so that system energy output can be maximised
through optimised module and system design. Array performance can be checked constantly against predictions from a
model so that any faults or downtime can be found and rectified quickly. The long time performance of thin film modules,
outdoor temperature coefficients and reasons for differences in energy yields has been determined.
Oerlikon Solar and SRCL have been characterizing a wide range of PV technologies and benchmarking them at two sites
in Switzerland.
The nine ways of four qubit entanglement and their threetangle
Creators: name: Osterloh, Andreas
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: I calculate the mixed threetangle $τ_3[ρ]$ for the reduced density matrices of the four-qubit representant states found in Phys. Rev. A {\bf 65}, 052112 (2002). In most of the cases, the convex roof is obtained, except for one class, where I provide with a new upper bound, which is assumed to be very close to the convex roof. I compare with results published in Phys. Rev. Lett. {\bf 113}, 110501 (2014). Since the method applied there usually results in higher values for the upper bound, in certain cases it can be understood that the convex roof is obtained exactly, namely when the zero-polytope where $τ_3$ vanishes shrinks to a single point.
description: 9 pages, 13 figures, revtex 4
Quantification of the Light-Induced-Degradation Effects in Iron-Rich Silicon Wafers via Carrier Lifetime Measurements
Creators: name: Tanay, F.
name: Dubois, S.
name: Enjalbert, N.
name: Veirman, J.
name: Périchaud, I.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterisation and Modelling

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1039-1044
description: The present study details two experimental methods to discriminate the effect of the boron-oxygen
complexes (BOi2) from the influence of the iron-boron (FeB) pairs in order to evaluate the Light Induced Degradation
(LID) effects only due to the BOi2 complexes actvation in presence of Fe. The methods are based on effective carrier
lifetime measurements (eff) by using the microwave-detected PhotoConductance Decay (μW-PCD) and the
inductively coupled – Quasi-Steady State PhotoConductance (IC-QSSPC) techniques. These methods allows the
quantification of both the LID effects and the concentration of the dissolved iron ([Fe]d) despite the simultaneous
presence of Fe and BOi2 in the material. Moreover both methods require standard and common characterisation tools.
Using the μW-PCD technique, we succeed in working out the carrier lifetime limited by the BOi2 complexes (BO)
and [Fe]d. In a second step, the QSSPC technique measures the variation of eff as function of time under illumination
without the effects of Fe. Using these latter data, we monitor the kinetics of the LID due to the BOi2 complexes only.
$C^{1,0}$ Foliation Theory
Creators: name: Kazez, William H.
name: Roberts, Rachel
Publisher: name: arXiv
Year: 2016
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M50

description: Transverse one dimensional foliations play an important role in the study of codimension one foliations. In \cite{KR2}, the authors introduced the notion of flow box decomposition of a 3-manifold $M$. This is a decomposition of $M$ that reflects both the structure of a given codimension one foliation and that of a given transverse flow. In this paper, flow box decompositions are used to extend some classical foliation results to foliations that are not $C^2$. Enhancements of well-known results of Calegari on smoothing leaves, Dippolito on Denjoy blowup of leaves, and Tischler on approximations by fibrations are obtained. The methods developed are not intrinsically 3-dimensional techniques, and should generalize to prove corresponding results for codimension one foliations in $n$-dimensional manifolds.
description: 31 pages, 2 figures
Illumination Level Independence in Relation to Emitter Profiles on Industrial High Efficiency Local Al-BSF Cells
Creators: name: Prajapati, V.
name: Cornagliotti, E.
name: Lorenz, A.
name: Vermang, B.
name: John, J.
name: Poortmans, J.
name: Mertens, R.
Publisher: name: WIP
Year: 2011
Subjects: Wafer-based Silicon Solar Cells and Materials Technology
Silicon Solar Cell Characterisation and Modelling

description: 26th European Photovoltaic Solar Energy Conference and Exhibition; 1052-1057
description: We observe a relationship between bias dependence and the process flow applied to produce passivated
emitter rear contacted (PERC) cells. The first process flow utilizes a deposited silicon oxide layer, for both diffusion
mask and passivation purposes. The second process flow uses the same silicon oxide diffusion mask, but it is
removed after diffusion and a freshly deposited silicon oxide layer is used for passivation purposes. Cells that have
been passivated with fresh silicon oxide result in a large bias dependence at ultra low bias levels below 10-1 sun, but
saturate performance beyond 10-1 sun. Cells that have been passivated with the silicon oxide diffusion mask, an
increase bias increases performance. For this process, we also observe a relationship between illumination level
dependence and the diffusion recipe which densifies the oxide. With a 90 ohm/sq emitter there is an increase in
collection in the UV wavelength range compared to a 60ohm/sq emitter. What is unexpected is that, in the case of the
90 ohm/sq device, there is also an increase in collection of wavelengths above 700nm under no bias compared to the
60ohm/sq device. The cells studied in this paper are fabricated using 148.25 cm2, 160μm p-type Cz-Si wafers with
screen printed Ag front contacts and are rear-side passivated with a deposited rear silicon oxide/silicon nitride stack
and area locally contacted with Al. The highest efficiency of the cells studied is 19.2 % with a Voc of 637mV, Jsc of
38.2 mA/cm2 and a fill factor of 79.1%
Cross-cultural comparison of sustainable diet perception between Global South and Global North countries using the Fake Food Buffet.
Creators: name: König, Laura M
name: Masri, Mirna Al
Publisher: name: Open Science Framework
Year: 2027
Subjects: subject: Medicine and Health Sciences
subject: Public Health
subject: Social and Behavioral Sciences
subject: Psychology
subject: FOS: Psychology
subject: Life Sciences

description: see Study protocol.pdf The protocol was uploaded on 21 November 2022 but no formal preregistration was created due to a technical error.
Global properties of rotating neutron stars with QCD equations of state
Creators: name: Gorda, Tyler
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We numerically investigate global properties of rotating neutron stars using the allowed band of QCD equations of state derived by Kurkela et al. This band is constrained by chiral effective theory at low densities and perturbative QCD at high densities, and is thus, in essence, a controlled constraint from first-principles physics. Previously, this band of equations of state was used to investigate non-rotating neutron stars only; in this work, we extend these results to any rotation frequency below the mass-shedding limit. We investigate mass--radius curves, allowed mass--frequency regions, radius--frequency curves for a typical 1.4-solar-mass star, and the values of the moment of inertia of the double pulsar PSR J0737-3039A, a pulsar whose moment of inertia may be constrained observationally in a few years. We present limits on observational data coming from these constraints, and identify values of observationally-relevant parameters that would further constrain the allowed region for the QCD equation of state. We also discuss how much this region would be constrained by a measurement of the moment of inertial of the double pulsar PSR J0737-3039A.
description: 5 pages, 5 figures; v2: discussion of Figure 1 updated with added references, Figure 2 updated, matches accepted journal version
Wie kann die Open-Access-Publikationsberatung inhaltlich verbessert werden? Analyse der auf der Q&A-Plattform Academia Stack Exchange geposteten Fragen
Creators: name: Schmitz, Jasmin
name: Schimmelpfennig, Svenja
Publisher: name: Zenodo
Year: 2022
Subjects: Open Access, Open Science, Publikationsberatung

description: Viele wiss. Bibliotheken stellen Beratungsangebote zur Verfügung, um Forschende bei der (Open-Access-)Publikation zu unterstützen. Auch ZB MED – Informationszentrum Lebenswissenschaften hat seit 2014 einen Publikationsberatungsservice flankierend zu seiner Open-Access-Publikationsplattform PUBLISSO aufgebaut. Das Angebot beinhaltet u.a. die Bereitstellung von FAQs (Frequently Asked Questions) auf der Website (www.publisso.de/open-access-beraten/faqs), die über unterschiedliche Aspekte des Open-Access-Publizierens und verwandte Themenbereiche informieren und fortlaufend um neue Informationen ergänzt und aktualisiert werden.
 ZB MED hat den Anspruch, seine Produkte eng an den Bedarfen der Forschenden auszurichten. Die Frage ist daher: Gibt es Aspekte, die innerhalb der FAQs vertieft oder zusätzlich aufgegriffen werden sollten? Webstatistiken geben zwar Aufschluss darüber, in welchem Umfang die FAQs aufgerufen werden, haben aber keine Aussagekraft dahingehend, welche Aspekte möglicherweise fehlen.
 Daher wurde ein exploratives Projekt durchgeführt: Auf der Plattform Academia Stack Exchange (academia.stackexchange.com), auf der Fragen zur akad. Ausbildung gestellt werden können, wurden Schlagwörter (sog. Tags), die das Beratungsspektrum umreißen, recherchiert und die Fragen, die im Zeitraum 06/2020 bis 05/2021 gepostet wurden (N=1.544), notiert und dahingehend kategorisiert, wie inhaltlich spezifisch diese sind sowie ob die darin angesprochenen Aspekte bereits in den FAQs behandelt werden. Ziel der Untersuchung war es herauszufinden, wie das FAQ-Angebot inhaltlich verbessert werden kann. Das Poster stellt die Ergebnisse des Projekts sowie Befunde, die von allgemeinem Interesse für die OA-Community sind, vor.
title: UrbanIxD: Exploring human interactions for the hybrid city
Creators: name: Stals, Shenandoah Leonardus Anna
Publisher: name: Edinburgh Napier University
Year: 2022

description: With the vision of ubiquitous computing becoming increasingly realised, a need is identified to create a better understanding of the relationship between person, place, and technology in the urban environment. The aim of this research in the field of Urban Interaction Design is to investigate how people’s emotional person-place relationships with personally meaningful places in their city of residence, can inform the design of technological devices and services that augment this urban lived experience in the hybrid city of the near future.

Based on insights from social science studies of place attachment and research focusing on technology mediating the emotional experience of and in the urban environment, a holistic, human-centred bottom-up approach is taken. It investigates the full range of experiences-in-place and emotions from which emotional person-place relationships in the city develop. Using a three-staged, multimethod approach consisting of a Walking & Talking interview and two sedentary interviews with (speculative) evaluative map techniques, 45 emotional person-place relationships of eight residents of Edinburgh are investigated. This resulted in a taxonomy of 16 types of emotional experience-in-place, and identified potential for capturing, representing, consuming, and sharing emotional person-place relationship data based on different types of positive and negative emotional experience-in-place, different types of representations and sensorial experiences, the closeness of social relationships and shared interests, and to support the self-regulation of emotions.

These main findings informed the design of a suite of three speculative design fictions in the form of two short films and a comic, to further explore this design space. These authentic, personally relevant, and provocative conversation pieces successfully engaged residents of Edinburgh in three focus groups on a human, personal level in an informed discussion, enabling critical reflection on current practices and interactions, and speculation about possible future scenarios for this unfamiliar design space.

This contributed to a set of design guidelines for emotional experience-in-place. It serves as a framework for urban interaction designers to understand the context of, identify potential for, and inform the design of technological devices and services that leverage emotional person-place relationships in the hybrid city of the near future.
Manipulating charge-density-wave in $1T$-TaS$_{2}$ by charge carrier doping: A first-principles investigation
Creators: name: Shao, D. F.
name: Xiao, R. C.
name: Lu, W. J.
name: Lv, H. Y.
name: Li, J. Y.
name: Zhu, X. B.
name: Sun, Y. P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The transition metal dichalcogenide (TMD) $1T$-TaS$_{2}$ exhibits a rich set of charge density wave (CDW) orders. Recent investigations suggested that using light or electric field can manipulate the commensurate (C) CDW ground state. Such manipulations are considered to be determined by the charge carrier doping. Here we simulate by first-principles calculations the carrier doping effect on CCDW in $1T$-TaS$_{2}$. We investigate the charge doping effects on the electronic structures and phonon instabilities of $1T$ structure and analyze the doping induced energy and distortion ratio variations in CCDW structure. We found that both in bulk and monolayer $1T$-TaS$_{2}$, CCDW is stable upon electron doping, while hole doping can significantly suppress the CCDW, implying different mechanisms of such reported manipulations. Light or positive perpendicular electric field induced hole doping increases the energy of CCDW, so that the system transforms to NCCDW or similar metastable state. On the other hand, even the CCDW distortion is more stable upon in-plain electric field induced electron injection, some accompanied effects can drive the system to cross over the energy barrier from CCDW to nearly commensurate (NC) CDW or similar metastable state. We also estimate that hole doping can introduce potential superconductivity with $T_{c}$ of $6\sim7$ K. Controllable switching of different states such as CCDW/Mott insulating state, metallic state, and even the superconducting state can be realized in $1T$-TaS$_{2}$, which makes the novel material have very promising applications in the future electronic devices.
Construction of Simulation-Based ECMO Educational Suite
Creators: name: AL-JAFARY, REZAN ADNAN MOH'D
Publisher: name: Monash University
Year: 2023
Subjects: Biomedical engineering not elsewhere classified

description: My project involves building a simulator for clinical staff to practice a complex medical procedure known as extracorporeal membrane oxygenation (ECMO). ECMO provides temporary mechanical support for patients with severely compromised heart and/or lungs. The procedure involves draining the patient’s blood outside the body where it gets supplied with oxygen and then pumped back to the body via large tubing. ECMO is life-saving but highly-technical and risky. Developing the necessary skill-set is essential to perform ECMO safely and effectively. The project explored building and testing a simulator acting and reacting like an ECMO patient for clinical training to acquire competency.
Japanischer Film im Zweiten Weltkrieg
Creators: name: Salomon, Harald
Publisher: name: Humboldt-Universität zu Berlin, Mori Ogai Gedenkstätte
Year: 2009
Subjects: subject: Japanisch
subject: Japanische Literatur
subject: 890 Literatur in anderen Sprachen

description: SAKURAMOTO Tomio: Dai Tôa sensô to Nippon eiga: Tachimi no senchû eiga ron (“Großostasiatischer Krieg und japanischer Film: Die Kriegsproduktionen vom Stehplatz aus gesehen”), Aoki Shoten 1993. 205 + v S., 39 Abb. // SHIMIZU Akira: Sensô to eiga: Senjichû to senryôka no Nihon eiga shi (“Krieg und Film: Geschichte des japanischen Kinos während der Kriegs- und Besatzungszeit”), Shakai Shisô Sha 1994. 217 S., 35 Abb.
Positivity of anti-canonical divisors and $F$-purity of fibers
Creators: name: Ejiri, Sho
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14D06, 14J45

description: In this paper, we prove that given a flat generically smooth morphism between smooth projective varieties with $F$-pure closed fibers, if the source space is Fano, weak Fano or a variety with the nef anti-canonical divisor, then so is the target space. We also show that relative anti-canonical divisors of generically smooth surjective nonconstant morphisms are not nef and big in arbitrary characteristic.
description: 26 pages, v2: minor revisions, v3: the proofs of the main theorems have been improved