cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Construct-aligned Assessment Tool for Internal Medicine Residents: Development and Validity Evidence
Creators: name: Gauthier, Stephen
Publisher: name: University of Illinois at Chicago
Year: 2024

description: Purpose:
Workplace-based entrustment-supervision scales are key components of assessment in postgraduate competency-based medical education. While the literature supports entrustment-based scales to be construct-aligned, it is unclear why construct-aligned instruments generate stronger validity evidence. Furthermore, evidence is lacking to support their use across different contexts. The goal of this study is to develop a construct-aligned entrustment-based assessment instrument for internal medicine senior residents and understand why it works.

Methods:
We developed a construct-aligned entrustment instrument designed to assess senior residents on the internal medicine Clinical Teaching Unit. Ten faculty members were interviewed to assess for construct-alignment. Cognitive interviews were then conducted with seven different supervisors who used the instrument to assess senior residents. The research team conducted thematic analysis to understand supervisor perspectives on its use.

Results:
The assessment instrument was aligned with the construct of supervision of senior residents in internal medicine. Participants found that by focusing the assessment on their own supervisory behavior (i.e. “I had to step-in more than usual”) they were willing to use the full range of the entrustment scale and they found it easy to complete. Comparing their supervision to ‘usual’ practice captured the way supervisors think of supervision and may help them account for contextual factors that lead to variability in assessment.

Conclusions:
This work outlines an approach for developing a construct-aligned entrustment-based assessment instrument for internal medicine senior residents with validity evidence supporting its use. This approach holds promise for improving programs of assessment within non-procedural specialties and advances the understanding of why construct-aligned assessment may be effective. These advances could improve assessment and enhance engagement among assessors and learners.
Production of light flavor hadrons measured by PHENIX at RHIC
Creators: name: Mitrankov, Iurii
Publisher: name: Zenodo
Year: 2021
Subjects: sqm19
phenix
π0
η
kaon
φ
ω
p+p
p+au
d+au
3he+au
cu+cu
cu+au
au+au
u+u
invariant yield
raa
nuclear
modification
small systems

description: Talk presented at the Strangeness in Quark Matter 2019 conference, Bari, Italy
Additional file 1 of Determinants of pre-vaccination antibody responses to SARS-CoV-2: a population-based longitudinal study (COVIDENCE UK)
Creators: name: Talaei, Mohammad
name: Faustini, Sian
name: Holt, Hayley
name: Jolliffe, David A.
name: Vivaldi, Giulia
name: Greenig, Matthew
name: Perdek, Natalia
name: Maltby, Sheena
name: Bigogno, Carola M.
name: Symons, Jane
name: Davies, Gwyneth A.
name: Lyons, Ronan A.
name: Griffiths, Christopher J.
name: Kee, Frank
name: Sheikh, Aziz
name: Richter, Alex G.
name: Shaheen, Seif O.
name: Martineau, Adrian R.
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology
subject: FOS: Biological sciences

description: Additional file 1: Table S1. Baseline questions. Table S2. Monthly follow-up questions. Table S3. Factors with no evidence of association with seropositivity for COVID-19 in minimally adjusted model. Table S4. Seropositivity sensitivity analysis excluding participants with symptom-defined probable COVID-19. Table S5. Factors with no evidence of association with antibody titres in seropositive participants in minimally adjusted model.
A possible solution for the lack of EHB binaries in globular clusters
Creators: name: Han, Z.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The binary fraction among extreme horizontal branch (EHB) stars in Galactic globular clusters (GCs) is an order of magnitude lower than the binary fraction among their counterparts, field hot subdwarfs. This casts serious doubt on their formation channels. In this {\em Letter}, I explain the difference between the field and the cluster EHB stars with the binary model of Han et al. (2002, 2003) for the formation of EHB stars. With the binary population synthesis code of Han et al. (2002, 2003), I follow the evolution of simple stellar populations resulting from single star bursts (note that Han et al. 2002, 2003, adopted a constant star formation rate over the last 15 Gyr for the production of field EHB stars), and obtain EHB stars at different stellar population ages. I found that the binary fraction among EHB stars decreases with the stellar population age. The fraction of EHB binaries with orbital periods $P<5 {\rm d}$ is $\sim 2.5%$ for a stellar population of 10 Gyr from the standard simulation set. The binary model of Han et al. (2002, 2003) is able to explain the lack of EHB binaries in globular clusters. I also propose that the precise determination of the physical parameters of close EHB binaries in GCs can lead to the strictest constraint on common-envelope ejection efficiency.
description: 5 pages, 3 figures, accepted for publication in A&A Letters (with language polish by the A&A Language Editor)
Visions from the Future: The Interaction between Curtailment, Spinning Reserve Settings and Generator Limits on Australian Projects with Medium to High Renewable Energy Fractions
Creators: name: Herteleer, B.
name: Dickeson, G.
name: McLeod, L.
name: Van Ree, B.
name: Paynter, C.
name: Airen, D.
name: Maker, P.
name: Latz, S.
name: Dobb, A.
name: Frearson, L.
Publisher: name: WIP
Year: 2018
Subjects: PV Systems - Performance, Applications and Integration
Grid and Energy System Integration

description: 35th European Photovoltaic Solar Energy Conference and Exhibition; 1423-1436
description: The operational experience and knowledge gained from NT SETuP and other ARENA-funded projects, which typically consist of diesel synchronous generators hybridised with PV and battery storage over the past year are discussed, combined with learnings from other Australian grids with medium to high Renewable Power and Energy Fractions. The operation of PV on these remote grids are used to highlight some of the drivers behind PV curtailment once renewables deliver a large fraction of power and energy, in light of the synchronous generator loading limits, system spinning reserve settings and demand patterns. Based on this experience and worldwide deployment patterns of PV, curtailment will soon become prevalent for grids where renewables routinely reach medium to high Renewable Power and Energy Fractions. A paradigm shift of embracing curtailment as a means of value maximisation, rather than yield maximisation, is identified as a means of ensuring a continued licence to operate for PV over time. Further investment and research needs are discussed for PV to continue to play a meaningful role on the path to 100% Renewable Energy.
Hadron-quark mixed phase in hyperon stars
Creators: name: Maruyama, Toshiki
name: Chiba, Satoshi
name: Schulze, Hans-Josef
name: Tatsumi, Toshitaka
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We analyze the different possibilities for the hadron-quark phase transition occurring in beta-stable matter including hyperons in neutron stars. We use a Brueckner-Hartree-Fock approach including hyperons for the hadronic equation of state and a generalized MIT bag model for the quark part. We then point out in detail the differences between Maxwell and Gibbs phase transition constructions including the effects of surface tension and electromagnetic screening. We find only a small influence on the maximum neutron star mass, whereas the radius of the star and in particular its internal structure are more affected.
description: 11 pages, 9 figures
Effects of Transaction Costs on Rice Farmers’ Adoption of Certified Seeds in the Philippines
Creators: name: Cuevas, Agham C.
name: Cuevas, Agham C.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Crop Production/Industries
subject: transaction costs
subject: technology adoption
subject: double hurdle models

description: The paper uses pooled data consisting of 1,816 farm households to determine the effects of transaction costs and other factors on the adoption and level of utilization of certified seeds. The model was estimated using Cragg’s double hurdle estimator. Results show that transaction costs generally affect the probability of adoption but not the level of usage of certified seeds. Policies that can mitigate transaction costs can increase the adoption rate but other interventions are needed to improve the level of use of certified seeds of those who are already using them and those that are prospectively going to utilize them.
Alternative Access: Description, Care, and Empathy in the Work of Andy Slater and Carmen Papalia
Creators: name: James, Nora Woodley
Publisher: name: University of Illinois at Chicago
Year: 2024

description: This project considers a common trait of contemporary disability art: using accessibility aids, such as captions, descriptions, canes, or even support from other people, as a meaningful part of artwork, instead of as a last-minute addition to make art accessible to disabled viewers. To do so, this project explores the work of two disabled artists, sound artist Andy Slater and performance artist Carmen Papalia. Focusing on Slater’s Invisible Ink series and Papalia’s Mobility Device and Blind Field Shuttle performances, I investigate how Slater and Papalia critique conventional models of institutional access and work towards a Disability Justice concept of “just care.”
DepGraph: Localizing Performance Bottlenecks in Multi-Core Applications Using Waiting Dependency Graphs and Software Tracing
Creators: name: Ezzati-Jivan, Naser
name: Fournier, Quentin
name: Dagenais, Michel R.
name: Hamou-Lhadj, Abdelwahab
Publisher: name: arXiv
Year: 2021
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: This paper addresses the challenge of understanding the waiting dependencies between the threads and hardware resources required to complete a task. The objective is to improve software performance by detecting the underlying bottlenecks caused by system-level blocking dependencies. In this paper, we use a system level tracing approach to extract a Waiting Dependency Graph that shows the breakdown of a task execution among all the interleaving threads and resources. The method allows developers and system administrators to quickly discover how the total execution time is divided among its interacting threads and resources. Ultimately, the method helps detecting bottlenecks and highlighting their possible causes. Our experiments show the effectiveness of the proposed approach in several industry-level use cases. Three performance anomalies are analysed and explained using the proposed approach. Evaluating the method efficiency reveals that the imposed overhead never exceeds 10.1%, therefore making it suitable for in-production environments.
description: 11 pages, 8 figures, IEEE SCAM 2020
Point spread functions for the Solar Optical Telescope onboard Hinode
Creators: name: Wedemeyer-Böhm, Sven
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The combined PSF of the BFI and the SOT onboard the Hinode spacecraft is investigated. Observations of the Mercury transit from November 2006 and the solar eclipse(s) from 2007 are used to determine the PSFs of SOT for the blue, green, and red continuum channels of the BFI. For each channel large grids of theoretical point spread functions are calculated by convolution of the ideal diffraction-limited PSF and Voigt profiles. These PSFs are applied to artificial images of an eclipse and a Mercury transit. The comparison of the resulting artificial intensity profiles across the terminator and the corresponding observed profiles yields a quality measure for each case. The optimum PSF for each observed image is indicated by the best fit. The observed images of the Mercury transit and the eclipses exhibit a clear proportional relation between the residual intensity and the overall light level in the telescope. In addition there is a anisotropic stray-light contribution. ... BFI/SOT operate close to the diffraction limit and have only a rather small stray-light contribution. The FWHM of the PSF is broadened by only ~1% with respect to the diffraction-limited case, while the overall Strehl ratio is ~ 0.8. In view of the large variations -- best seen in the residual intensities of eclipse images -- and the dependence on the overall light level and position in the FOV, a range of PSFs should be considered instead of a single PSF per wavelength. The individual PSFs of that range allow then the determination of error margins for the quantity under investigation. Nevertheless the stray-light contributions are here found to be best matched with Voigt functions with the parameters sigma = 0."008 and gamma = 0."004, 0."005, and 0."006 for the blue, green, and red continuum channels, respectively.
description: 14 pages, 9 figures, accepted by A&A
Mozambique's Agricultural Economy in Brief
Creators: name: Missiaen, Edmond
name: Missiaen, Edmond
Publisher: name: Unknown
Year: 1969
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: International Development
subject: International Relations/Trade
subject: Marketing
subject: FOS: Economics and business

description: Excerpts from the report: Agriculture is very dominant in Mozambique 's economy, supplying almost two-thirds of the gross domestic product and 79 percent (value) of exports, and employing well over 80 percent of the population. There are three basic types of agriculture in Mozambique: African subsistence agriculture, which is usually supplemented by one or two cash crops; small-and medium-scale European-type farming practiced by Portuguese immigrants; and large-scale plantation (estate) farming, which is controlled by Europeans. The principal subsistence crops of Mozambique are cassava, corn, and peanuts. African farmers market cotton, cashew nuts, copra, and various other crops in addition to rice, corn, and peanuts. Cotton, almost exclusively an African-grown crop, usually has ranked as Mozambique's most valuable export. Mozambique is the leading world supplier of cashew nuts, producing almost twice as much as its nearest competitor. The most important plantation crops in Mozambique are sugar, tea, copra and sisal.
Signals for strange quark contributions to the neutrino (antineutrino) scattering in quasi-elastic region
Creators: name: Cheoun, Myung-Ki
name: Kim, K. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Strange quark contributions to the neutrino (antineutrino) scattering are investigated on the elastic neutrino-nucleon scattering and the neutrino-nucleus scattering for 12C target in the quasi-elastic region on the incident energy of 500 MeV, within the framework of a relativistic single particle model. For the neutrino-nucleus scattering, the effects of final state interaction for the knocked-out nucleon are included by a relativistic optical potential. In the cross sections we found some cancellations of the strange quark contributions between the knocked-out protons and neutrons. Consequently, the asymmetries between the incident neutrino and antineutrino which is the ratio of neutral current to charged current, and the difference between the asymmetries are shown to be able to yield more feasible quantities for the strangeness effects. In order to explicitly display importance of the cancellations, results of the exclusive reaction 16O(ν, ν' p) are additionally presented for detecting the strangeness effects.
description: 14 pages, 8 figures, submitted to Phys. Lett. B
Dopant-Free Asymmetric Thin-Film Crystalline Silicon Heterojunction Solar Cells
Creators: name: He, J.
name: Wang, W.
name: Karuturi, S.
name: Wan, Y.
Publisher: name: WIP
Year: 2019
Subjects: Silicon Materials and Cells
Thin Film and Foil-Based Si Solar Cells

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 137-139
description: Researches on photovoltaic devices with high performance-to-cost ratio require the efforts not only on efficiency improvements, but also on manufacturing cost reduction, e.g. the adoption of thinner absorbers and simpler fabrication routes. Thin-film crystalline silicon (c-Si) heterojunction solar cells (HSCs) with dopant-free and carrierselective configurations look like ideal candidates in this respect. Here, dopant-free asymmetric n-Si/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (n- Si/PEDOT:PSS) HSCs were investigated on thin film c-Si (~ 25 μm) substrates. Periodic pyramid array with period of 1.4 μm was used as front-side surface texturing to improve the light utilization. In the front-side emitter, bi-layer PEDOT:PSS films with separately additives of (3-glycidoxypropyl)trimethoxysilane (GOPS) and 1-ethyl- 3-methylimidazolium tricyanomethanide (EMIM/TCM) were used as hole-transporting layers to ensure effectively carriers separation and transmission simultaneously. As to the rear-side, Self-doped TiOX film was used as electron-selective passivating layer, showing low surface recombination velocity of below 10 cm/s and low contact resistivity of below 20 mW/cm2. A final efficiency of 14.90% was realized by optimizing the interfacial recombination and series resistance at front/rear-side, showing a promising strategy to fabricate high-performance thin film crystalline silicon HSCs with simple and low temperature process.
Additional file 1 of Perioperative fluid administration and complications in emergency gastrointestinal surgery—an observational study
Creators: name: Voldby, Anders W.
name: Aaen, Anne A.
name: Loprete, Roberto
name: Eskandarani, Hassan A.
name: Boolsen, Anders W.
name: Jønck, Simon
name: Ekeloef, Sarah
name: Burcharth, Jakob
name: Thygesen, Lau C.
name: Møller, Ann M.
name: Brandstrup, Birgitte
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Marine Biology
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1:. Supplementary Fig. S1.
From the Hot Carrier Solar Cell to the Intermediate Band Solar Cell, Passing through the Multiple-Exciton Generation Solar Cell and Then Back to the Hot Carrier Solar Cell: The Dance of the Electro-Chemical Potentials
Creators: name: Martí Vega, A.
Publisher: name: WIP
Year: 2019
Subjects: New Materials and Concepts for Photovoltaic Devices
Fundamental Studies

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 6-12
description: Hot carrier solar cells, multiple exciton generation solar cells and intermediate band solar cells have more in common that it would first appear. In this paper we describe the theoretical framework that all these concepts share and how one type of solar cell can lead to another by removing or adding some of the working hypotheses. In this context, the electrochemical potentials play a fundamental role since, for example, a hot carrier solar cell can be regarded as a solar cell with an infinite number of quasi-Fermi levels while the intermediate band solar cell can be regarded as a solar cell with three quasi-Fermi levels but that can be made back to approach the hot carrier solar cell as the number of “intermediate bands” increases.
Bulk and nano GaN: Role of Ga d states
Creators: name: Cherian, Roby
name: Mahadevan, Priya
Publisher: name: arXiv
Year: 2007
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have studied the role of Ga 3d states in determining the properties of bulk as well as nanoparticles of GaN using PAW potentials. A significant contribution of the Ga d states in the valence band is found to arise from the interaction of Ga 4d states with the dominantly N p states making up the valence band. The errors arising from not treating the Ga 3d states as a part of the valence are found to be similar, ~ 1%, for bulk as well as for nanoclusters of GaN.
description: 17 pages, 7 figures
Radio Continuum Study of Supernova Remnants in the Large Magellanic Cloud - SNR J0519-6926
Creators: name: Crawford, E. J.
name: Filipović, M. D.
name: Payne, J. L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of new high resolution ATCA observations of SNR J0519-6926. We found that this SNR exhibits a typical "horseshoe" appearance with alpha = -0.55 +- 0.08 and D=28+-1 pc. No polarization (or magnetic fields) are detected to a level of 1%. This is probably due to a relatively poor sampling of the uv plane caused be observing in "snap-shot" mode.
description: 6 pages 4 figures, to be published in Serbian Astronomical Journal
Moral development and moral action : a study of youthful offenders
Creators: name: Moran, Thomas
Publisher: name: University of British Columbia
Year: 2010

description: This study was designed to explore possible relations between moral maturity and moral action by evaluating groups of delinquent and non-delinquent youth, and examining their relative position on multiple measures of moral maturity and criminality. Subjects were 60 male adjudicated juvenile offenders between the ages of 14 and 17, and 20 non-delinquent controls. All youth participated in a series of structured interviews used as a way of assessing their abilities on Kohlberg's moral reasoning, Turiel's social convention understanding, and Selman's social perspective taking measures, and were administered Hogan's socialization, empathy, and autonomy scales. The delinquent youth were assigned immorality ratings and further classified according to legal categories. Ratings for Hare's Psychopathy Checklist were obtained from primary therapists for the delinquents and from school counsellors for the non-delinquent comparison group. The results revealed that as a group, delinquent subjects showed substantial developmental delays in their performances on measures of moral reasoning, social convention understanding, interpersonal awareness and indices of socialization and autonomy. Hogan's empathy measure also showed a trend in the same direction. The majority of the delinquent youth were found to score at a preconventional-concrete reasoning level and showed a general lack of social-moral character. Tests of communality among the six moral maturity measures produced distinct and internally consistent cognitive reasoning (i.e., moral reasoning, interpersonal awareness, and social convention understanding) and moral character (i.e., socialization, empathy, and autonomy) clusters which lend support to the claims of Brown, Harre, and Hogan regarding the multidimensionality of moral development. There was an expected inverse relationship between immorality and moral maturity for the low and moderate seriousness groups, and an inconsistent pattern for the high group. This later finding was interpreted as an artifact of the fact that those delinquents whose criminal acts were judged most immoral were particularly guilty of various sexual offenses. The psychometric properties of the Psychopathy Checklist confirm its usefulness with adolescent populations. Three internally consistent factor scales emerged (i.e., motivational deficit, lack of ego strength, and behavioral deviation). While psychopathy was found to significantly correlate with immorality ratings, an unexpected positive relationship was also found between psychopathy and moral reasoning for the sex offender group. Taken together, all of these results were interpreted in terms of Heider's theory of the psychology of action, which views behavior, in this case moral behavior, as a combination of "can" (i.e., moral reasoning competency) and "try" (i.e., moral character).
Spectroradiometer Comparison under Outdoor Direct Normal Irradiance and Indoor High-Power AM0-Like Conditions
Creators: name: Galleano, R.
name: Pavanello, D.
name: Zaaiman, W.
name: Jungst, G.
name: Halwachs, M.
name: Rennhofer, M.
name: Santamaria Lancia, A.A.
name: Haverkamp, E.J.
name: Van Der Woude, D.
name: Minuto, A.
name: Celi, E.
name: Theristis, M.
name: Couderc, R.
name: Voarino, P.
Publisher: name: WIP
Year: 2019
Subjects: PV Systems and Storage – Modelling, Design, Operation and Performance
Solar Resource and Forecasting

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1460-1465
description: Intercomparisons of primary instruments are of paramount importance to guarantee reproducibility and equivalence of calibration and are expressly required for laboratories applying the quality scheme outlined in IEC/ISO 17025 standard. The correct and reliable measurement of the spectral content of the used light source(s) is one of the main tasks in the process of a generic photovoltaic (PV) device calibration; this requirement has become more and more important since the technology biodiversity has increased in the PV world. The two afore mentioned issues were among the main driving forces to establish a network of European and International PV laboratories and industries willing to share good practices in spectroradiometric calibration and measurements, and to periodically check their equivalence-of-result in measuring the spectral content of the sun or of solar simulators. This paper will report on the preliminary results from a spectroradiometers intercomparison performed measuring solar direct normal incidence spectral irradiance and global normal incidence spectral irradiance under an indoor high-power AM0-like source.
Comparison Study of Optical, Structural and Morphological Properties of CsPbBr3 Thin Films Grown Using Different Vacuum Based Routes
Creators: name: Gordillo, G.
name: Torres, O.G.
name: Peña, J.C.
name: Ramírez Pérez, E.A.
name: Otálora, C.A.
Publisher: name: WIP
Year: 2019
Subjects: Perovskites, other Non-Silicon-Based Photovoltaics and Multi-Junction Devices
Perovskite Based Photovoltaics

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 738-741
description: In this paper results regarding optical, structural and morphological properties of CsPbBr3 thin films deposited using three different vacuum based routes are compared. The films were prepared by co-evaporation, sequential deposition and evaporation of single crystal powder of CsPbBr3 grown using the antisolvent vapor-assisted crystallization (AVC) method; in all three cases, we use CsBr ( ≥99.5%) and PbBr2 ( ≥99.5%) as precursors materials. The lattice strain and crystallite size D of the CsPbBr3 films were estimated through X-ray diffraction (XRD) measurements using Williamson–Hall-isotropic strain model and the Williamson–Hall plot methods respectively. Further, information regarding the influence of grow route on the morphology and formation of structural defects was achieved through scanning electron microscopy (SEM) and Urbach energy measurements.
Chiral violations from one-loop domain wall fermions
Creators: name: Capitani, Stefano
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results from lattice perturbation theory for the residual mass and other matrix elements measuring the breaking of chiral symmetry in domain-wall fermions. We have used the exact propagators corresponding to a finite number of points in the fifth dimensions, and results were obtained for several choices of the domain-wall parameters.
description: Talk presented at Lattice 2007, the XXV International Symposium on Lattice Field Theory (Chiral symmetry), 7 pages
Deep Level Transient Spectroscopic Investigation of Carrier Trap Defects in p-Type mc-Si PERC Solar Cells After Elevated Temperature Light Soaking
Creators: name: Zhou, C.
name: Zhou, S.
name: Ji, F.
name: Wenjing, W.J.
Publisher: name: WIP
Year: 2019
Subjects: Silicon Materials and Cells
Homojunction Solar Cells

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 147-150
description: In boron-doped multi-crystalline PERC solar cells carrier traps were investigated by deep level transient spectroscopy after so-called “elevated temperature light –induced degradation” (LeTID). LeTID was carried out in Boron dopped mc-Si PERC solar cells for 30 hours. The current- deep level transient spectroscopy (I-DLTS) signals were detected from the full structure of the solar cells. I-DLTS-spectra allow measuring the deep energy levels parameters in large area of the p-n-junction solar cells with high leakage current and relatively large electrical capacitance. Comparing with the as-prepared PERC solar cell, DLTS signal increases in degraded cells which mean the defect concentration rise after light soaking at 70 oC for 30 hours. The apparent trap in an as-prepared and degraded PERC solar cells was related to Fe, with deep energy levels at about Ev + 0.485eV (Fei complex), and Ev + 0.295 eV (Fe-H), and their carrier capture cross-sections in the range of 10-14 – 10-16 cm2. The Fei complex peak with the maximum intensity indicates that it is hardly removed by means of phosphorus diusion gettering and hydrogenation process during PERC solar cell manufacture process. After LeTID, However, it is clear that even though the defect types are similar with those in the asprepared, their percentage changes in the LeTID solar cell. The Fe-H defect increase evidently and becomes the major defect withthe highest concentration after LeTID, which have higher concentration near surface. While Fei concentration decrease from the deep Si bulk to near silicon surface after LeTID. This imply that the Fei may bond with other impurity to form complex, or the nature of Fe defects changes in Si bulk during elevated temperature light soaking. It should be noted that we still can not exclude other transition metal ’s contribution because of their activation energy overlapping with Fe relative defect.
The Economic Incentives of International Conflicts: A Theoretical Exposition
Creators: name: Andal, Emmanuel Genesis T.
name: Andal, Emmanuel Genesis T.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agribusiness
subject: armed conflict
subject: international economics
subject: political economy

description: This paper explores the event in which a country imposes its power on another country to improve its welfare. It constructs a model of the economic incentives of international armed conflicts and investigates the role of power relations in the furtherance of national welfare. The central result is that in case of an armed conflict, the country with the higher probability of winning has greater wealth and will aim for a larger value of the stake from the armed conflict. Furthermore, as the probability of winning the war rises, the price of the stake the country is willing to pay increases.
Fight Global Warming (Climate Change) with Solar Energy + Multi-Storage Resilient Island Nano-Grid Smart Home/Building
Creators: name: Borland, J.
Publisher: name: WIP
Year: 2019
Subjects: PV Systems and Storage – Modelling, Design, Operation and Performance
Storage

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1516-1519
description: We report on 3 years residential Hawaii case study results for rooftop solar-PV + multiple storage. Carbon emissions/footprint was reduced by 92% reducing grid-buy from the utility from 14.5MWh/year to 1.2MWh/year for 2018, a cost savings of $4,383.50/year and payback of 3.1 years. Using IoT and smart devices for; 1) home automation, 2) energy ecosystem monitor and control, 3) future weather forecasting and 4) lifestyle behavioral changes we achieved Island Nano-Grid with 100% renewable clean energy and resilience 24/7 for 336 days out of the year. Grid-buy was required for only 29 days due to rain/cloudy days.
Transient stability analysis of multimachine power systems by catastrophe theory
Creators: name: Mihirig, Ali Mohamed
Publisher: name: University of British Columbia
Year: 2010

description: Transient stability analysis is an important part of power system planning and operation. For large power systems, such analysis is very demanding in computation time. On-line transient stability assessment will be necessary for secure and reliable operation of power systems in the near future because systems are operated close to their maximum limits. In the last two decades, a vast amount of research work has been done in the area of fast transient stability assessment by direct methods. The major difficulties associated with direct methods are the limitations in the power system model, determination of transient stability regions and adaptation to changes in operating conditions. In this thesis catastrophe theory is used to determine the transient stability regions. Taylor series expansion is used to find the energy balance equation in terms of clearing time and system transient parameters. The energy function is then put in the form of a catastrophe manifold from which the bifurcation set is extracted. The bifurcation set represents the transient stability region in terms of the power system transient parameters bounded by the transient stability limits. The transient stability regions determined are valid for any changes in loading conditions and fault location. The transient stability problem is dealt with in the two dimensions of transient stability limits and critical clearing times. Transient stability limits are given by the bifurcation set and the critical clearing times are calculated from the catastrophe manifold equation. The method achieves a breakthrough in the modelling problem because the effects of exciter response, flux decay and systems damping can all be included in the transient stability analysis. Numerical examples of one-machine infinite-bus and multi-machine power systems show very good agreement with the time solution in the practical range of first swing stability analysis. The method presented fulfills all requirements for on-line assessment of transient stability of power systems.
Additional file 2 of Perioperative fluid administration and complications in emergency gastrointestinal surgery—an observational study
Creators: name: Voldby, Anders W.
name: Aaen, Anne A.
name: Loprete, Roberto
name: Eskandarani, Hassan A.
name: Boolsen, Anders W.
name: Jønck, Simon
name: Ekeloef, Sarah
name: Burcharth, Jakob
name: Thygesen, Lau C.
name: Møller, Ann M.
name: Brandstrup, Birgitte
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Marine Biology
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 2:. Supplementary Fig. S2.
Nonlinear Landau-Zener Processes in a Periodic Driving Field
Creators: name: Zhang, Qi
name: Hanggi, Peter
name: Gong, Jiangbin
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Effects of a periodic driving field on Landau-Zener processes are studied using a nonlinear two-mode model that describes the mean-field dynamics of a many-body system. A variety of different dynamical phenomena in different parameter regimes of the driving field are discussed and analyzed. These include shifted, weakened, or enhanced phase dependence of nonlinear Landau-Zener processes, nonlinearity-enhanced population transfer in the adiabatic limit, and Hamiltonian chaos on the mean field level. The emphasis of this work is placed on how the impact of a periodic driving field on Landau-Zener processes with self-interaction differs from those without self-interaction. Aside from gaining understandings of driven nonlinear Landau-Zener processes, our findings can be used to gauge the strength of nonlinearity and for efficient manipulation of the mean-field dynamics of many-body systems.
description: 21 pages, 9 figures, minor changes, published in New Journal of Physics
Photovoltaic Properties of PZN-4.5PT Perovskite Nanoparticles Thin Film Deposited on Silicon Nanowires Substrate
Creators: name: Ndioukane, R.
name: Touré, M.
name: Diallo, A.K.
name: Fall, N.C.Y.
name: Kobor, D.
name: Motte, L.
name: Solard, J.
name: Ottaviani, L.
name: Torchio, P.
Publisher: name: WIP
Year: 2019
Subjects: Perovskites, other Non-Silicon-Based Photovoltaics and Multi-Junction Devices
Perovskite Based Photovoltaics

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 746-748
description: Although ferroelectric photovoltaics has been known for 50 years, it was not investigated extensively due to the low power conversion efficiency. Thus, we have very limited knowledge of ferroelectric materials and the underlying PV mechanism. Remarkably, recent research on the ferroelectric PV cells shows that engineered domain walls can exhibit a photovoltaic effect with an impressively high voltage output. The internal electric field in the ferroelectric material is one order of magnitude larger than conventional p-n or hetero junction solar cells. This study focuses to integrate PZN-4.5PT as nanoparticles thin film on Silicon nanowires substrate and to investigate their morphologic and photovoltaic properties. Thin films with these nanoparticles embedded in a gel have been fabricated successfully by spin coating on silicon nanowires substrates initially made by chemical etching method assisted by a silver catalyst. SEM images show a slightly homogeneous distribution of nanoparticles inside the nanowires, which leads to a better recovery of the surface by the nanoparticles. Electronic interactions are thus better between nanowires and nanoparticles than for nanowires and gel alone. This is likely to lead to better extraction of charges while reducing recombination kinetics at the interfaces.
Non-Uniform Wind Loads Test for Photovoltaic Module
Creators: name: Hsu, S.-T.
name: Lin, W.-Y.
name: Hsieh, C.F.
Publisher: name: WIP
Year: 2019
Subjects: Photovoltaic Modules and BoS Components
PV Module Design, Manufacture, Performance and Reliability

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 801-804
description: Typhoon damage to solar photovoltaic (PV) systems is very frequent, but current IEC standards are still limited in mechanical load tests with static uniform forces (IEC 61215-2:2016) or dynamic uniform forces (IEC TS 62782:2016), lacking a test method in which uneven wind pressure is applied to a PV module. In order to understand the impact of strong winds on PV modules, this study first developed a non-uniform dynamic mechanical load (NUDML) system that simulates different wind levels. Second, establish the mean surface pressure pattern (MSPP) required for the severity test, taking into account the effects of different environmental factors such as wind speed (V), wind direction angle () and module tilt (). The experimental results show that in the two dynamic test cases of uneven force and equivalent average force, the former has a significant performance loss (e.g., Pmax) on the tested module, and can also evaluate the stress intensity of the bracket or fastener quickly.
To quantify the difference of $η$-inner products in $\cal PT$-symmetric theory
Creators: name: Huang, Minyi
name: Zhang, Guijun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we consider a typical continuous two dimensional $\cal PT$-symmetric Hamiltonian and propose two different approaches to quantitatively show the difference between the $η$-inner products. Despite the continuity of Hamiltonian, the $η$-inner product is not continuous in some sense. It is shown that the difference between the $η$-inner products of broken and unbroken $\cal PT$-symmetry is lower bounded. Moreover, such a property can lead to an uncertainty relation.
description: Minor corrections
Optical probing of spin fluctuations of a single magnetic atom
Creators: name: Besombes, L.
name: Leger, Y.
name: Bernos, J.
name: Boukari, H.
name: Mariette, H.
name: Fernandez-Rossier, J.
name: Aguado, R.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We analyzed the photoluminescence intermittency generated by a single paramagnetic spin localized in an individual semiconductor quantum dot. The statistics of the photons emitted by the quantum dot reflect the quantum fluctuations of the localized spin interacting with the injected carriers. Photon correlation measurements which are reported here reveal unique signatures of these fluctuations. A phenomenological model is proposed to quantitatively describe these observations, allowing a measurement of the spin dynamics of an individual magnetic atom at zero magnetic field. These results demonstrate the existence of an efficient spin relaxation channel arising from a spin-exchange with individual carriers surrounding the quantum dot. A theoretical description of a spin-flip mechanism involving spin exchange with surrounding carriers gives relaxation times in good agreement with the measured dynamics.
An Exploratory Study of the Economic Potential of Philippine Pili Pulp Oil From Waste Pulp
Creators: name: Catelo, Salvador P.
name: Jimenes, Carolyn D.
name: Catelo, Salvador P.
name: Jimenes, Carolyn D.
Publisher: name: Unknown
Year: 2016
Subjects: subject: Crop Production/Industries
subject: Canarium ovatum
subject: cost and returns
subject: domestic resource cost
subject: import competitiveness
subject: Philippines

description: This paper aims to determine the status of the pili nut and pili pulp oil industry in the Philippines and the competitiveness of processing oil from pili (Canarium ovatum) waste pulp using the domestic resource cost approach. Results of analysis reveal that producing locally one kg of pili pulp oil costs PhP 599. This is almost half the cost of importing olive oil - a close substitute - from Spain estimated at PhP 1,310/kg. In terms of domestic resource cost, there exists comparative (economic) advantage in pili pulp oil production. With a domestic resource cost (DRC) of 0.72, pili pulp oil production in the Philippines is competitive and hence manifests considerable economic potential. It has both employment and income effects that any similar program on inclusive growth aims to generate. If all the pili pulp were processed and converted into pili pulp oil, a total of 262,000 metric tons worth about PhP 212 million could have been generated in 2014.
In Situ Metrology for Degradation Studies of Perovskite Solar Cells
Creators: name: Koutsourakis, G.
name: Cao, Y.
name: Li, B.
name: Imalka Jayawardena, K.D.G.
name: Bandara, I.R.M.
name: Wood, S.
name: Blakesley, J.C.
name: Zhang, W.
name: Silva, S.R.P.
name: Araujo De Castro, F.
Publisher: name: WIP
Year: 2019
Subjects: Perovskites, other Non-Silicon-Based Photovoltaics and Multi-Junction Devices
Perovskite Based Photovoltaics

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 629-633
description: Perovskite solar cells (PSC) have attracted considerable attention in recent years due to the high efficiencies achieved, their scalability potential and the introduction of record efficiency tandem devices with a perovskite layer on top of silicon. Although the reported efficiencies and scalability approaches demonstrated show great potential for this technology, stability issues are a significant obstacle for PSC before they can compete with established PV technologies. Although efficient encapsulation offers some protection from environmental factors, encapsulation will never be perfect and through the years some permeation of oxygen and humidity into PV modules is inevitable. There are a number of critical factors for PSC degradation, and tests require accurate conditions and measurements in order to distinguish different degradation mechanisms. In situ metrology for ageing tests of perovskite PV devices has been developed at NPL that involves accurately controlled environments that can simulate realistic encapsulation conditions, while applying electrical measurements and spatial characterisation techniques. Environmental conditions including atmospheric composition, spectrum and intensity of illumination, and temperature can be accurately controlled. At the same time, current-voltage measurements, luminescence imaging, and photocurrent mapping of PSC can be performed during degradation. This allows the collection of a significant amount of data, in order to record the failure processes of samples and reveal the degradation mechanisms.
Photovoltaic Energy Yield Prediction Using an Irradiance Forecast Model Based on Machine Learning for Decentralized Energy Systems
Creators: name: Wendlandt, S.
name: Popescu, F.
Publisher: name: WIP
Year: 2019
Subjects: PV Applications and Integration
PV Driven Energy Management and System Integration

description: 36th European Photovoltaic Solar Energy Conference and Exhibition; 1860-1864
description: Over the past few years electricity generation costs for PV technology have dropped massively. Since, at the same time, PV module efficiencies have increased significantly, the market for building-applied PV systems has dramatically changed and in many countries it has become a de facto standard to use PV as the main source for the building´s energy needs. Because the power output of PV systems is fluctuating along with solar irradiation, advanced energy storage and management systems are necessary to cover the building energy demand on a stable basis. This paper presents a novel ‘gray-model’ approach to the estimation the forecast of PV energy systems. It is based on machine learning for solar irradiance forecasting and physical-mathematical models to simulate the PV system itself. The paper presents a comparison between simulated and real-life energy production data of a sample PV system.