cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Character formulae for queer Lie superalgebras and canonical bases of types $A/C$
Creators: name: Cheng, Shun-Jen
name: Kwon, Jae-Hoon
name: Wang, Weiqiang
Publisher: name: arXiv
Year: 2015
Subjects: subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B67

description: For the BGG category of $\mathfrak{q}(n)$-modules of half-integer weights, a Kazhdan-Lusztig conjecture à la Brundan is formulated in terms of categorical canonical basis of the $n$th tensor power of the natural representation of the quantum group of type $C$. For the BGG category of $\mathfrak{q}(n)$-modules of congruent non-integral weights, a Kazhdan-Lusztig conjecture is formulated in terms of canonical basis of a mixed tensor of the natural representation and its dual of the quantum group of type $A$. We also establish a character formula for the finite-dimensional irreducible $\mathfrak{q}(n)$-modules of half-integer weights in terms of type $C$ canonical basis of the corresponding $q$-wedge space.
description: 32 pages, minor revision on v2, to appear in Communications in Mathematical Physics
Supplementary document for An Oscillator Driven, Time-Resolved Optical Pump/NIR Supercontinuum Probe Spectrometer - 6200643.pdf
Creators: name: Rai, Manita
name: Deeg, Wesley
name: Lu, Baozhu
name: Brandmier, Katrina
name: Miller, Ashtyn
name: Torchinsky, Darius
Publisher: name: Optica Publishing Group
Year: 2023
Subjects: subject: 20599 Optical Physics not elsewhere classified
subject: FOS: Physical sciences

description: Supplemental Document
New Process Integration for Interdigitated Back Contact (IBC) a-Si:H/c-Si Heterojunction Solar Cells
Creators: name: Desrues, T.
name: Ribeyron, P.-J.
name: Vandeneynde, A.
name: Ozanne, A.-S.
name: Souche, F.
name: Veschetti, Y.
name: Bettinelli, A.
name: Roca I Cabarrocas, P.
name: Labrune, M.
name: Diouf, D.
name: Kleider, J.P.
name: Lemiti, M.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1673-1676
description: This study deals with a way to improve the efficiency of conventional a-Si:H/c-Si heterojunctions (HJ) solar cells using the interdigitated back contact (IBC) structure. First we optimize doped and undoped hydrogenated amorphous silicon passivation layers using lifetime measurements and mapping. As a reference we realize conventional a-Si:H/c-Si HJ solar cells on large area (25 cm2) monocrystalline n-type c-Si. We show that conventional HJ cells efficiency is mainly limited by the front side cell structure. One way to overcome the optical and resistive losses of conventional a-Si:H/c-Si HJ cells is the implementation of an interdigitated back contact (IBC) design. We propose a comparison between two fabrication processes for large area IBC-Heterojunction solar cells based either on screen printing technology or on the use of metallic masks. Then, we also develop a passivating front surface and anti-reflective layer. Finally, we fabricate IBC a-Si:H/c-Si HJ solar cells (28 cm2) with efficiency up to 8.2% (Voc 639mV; Jsc 25.7mA.cm-2; FF 49.8%), mainly limited by a high series resistance.
A RELAÇÃO ENTRE O PESO CORPORAL E OS ASPECTOS COGNITIVOS E MOTORES EM CRIANÇAS DE ESCOLAS DO MUNICÍPIO DE VITÓRIA DE SANTO ANTÃO
Creators: name: Evelyn da Silva Albuquerque, Priscyla
name: Ribeiro Santos Silva, Luanna
name: de Santana, David Filipe
name: Santiago Dimech, Gustavo
name: Gouveia Cursino, Ivson
name: Santos, Vanessa Pimentel
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 429999
subject: Other health sciences not elsewhere classified

description: A obesidade é o excesso de tecido adiposo capaz de acarretar ameaças consideráveis à saúde e bem-estar de seus portadores. O excesso de peso na infância representa um risco para o desenvolvimento da obesidade na vida adulta, além de comorbidades que podem estar associadas ao distúrbio metabólico, e outros prejuízos no desenvolvimento neuropsicomotor. O objetivo deste estudo é analisar a relação entre os aspectos antropométricos, cognitivos e coordenação motora em crianças na fase da infância. Trata-se de um estudo transversal, realizado em crianças de idade entre 5 a 9 anos e 11 meses, de ambos os sexos, eutróficos ou com sobrepeso, e matriculados em escolas públicas da zona urbana do município da Vitória de Santo Antão-PE. Foi verificado que o grupo com maior peso corporal obteve um menor escore nos testes cognitivos e motores, além do declínio em médias escolares, quando comparado às crianças eutróficas. O presente estudo confirmou a suposição de que o acúmulo de tecido adiposo durante a infância pode estar relacionado ao declínio funcional motor e cognitivo de seus portadores.
Suppressing structure formation at dwarf galaxy scales and below: late kinetic decoupling as a compelling alternative to warm dark matter
Creators: name: Bringmann, Torsten
name: Ihle, Haavard Tveit
name: Kersten, Joern
name: Walia, Parampreet
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Warm dark matter cosmologies have been widely studied as an alternative to the cold dark matter paradigm, the characteristic feature being a suppression of structure formation on small cosmological scales. A very similar situation occurs if standard cold dark matter particles are kept in local thermal equilibrium with a, possibly dark, relativistic species until the universe has cooled down to keV temperatures. We perform a systematic phenomenological study of this possibility, and classify all minimal models containing dark matter and an arbitrary radiation component that allow such a late kinetic decoupling. We recover explicit cases recently discussed in the literature and identify new classes of examples that are very interesting from a model-building point of view. In some of these models dark matter is inevitably self-interacting, which is remarkable in view of recent observational support for this possibility. Hence, dark matter models featuring late kinetic decoupling have the potential not only to alleviate the missing satellites problem but also to address other problems of the cosmological concordance model on small scales, in particular the cusp-core and too-big-too-fail problems, in some cases without invoking any additional input.
description: 23 pages revtex4, 11 figures. Extended discussion and model classification. Matches published version
High Efficiency Large-Area a-SiGe:H and nc-Si:H Based Multi-Junction Solar Cells: A Comparative Study
Creators: name: Xu, X.
name: Zhang, J.
name: Beglau, D.
name: Su, T.
name: Ehlert, S.
name: Li, Y.
name: Pietka, G.
name: Worrel, C.
name: Lord, K.
name: Yue, G.
name: Yan, B.
name: Banerjee, A.
name: Yang, J.
name: Guha, S.
Publisher: name: WIP-Munich
Year: 2010
Subjects: Thin Film Solar Cells
Amorphous and Microcrystalline Silicon Solar Cells

description: 25th European Photovoltaic Solar Energy Conference and Exhibition / 5th World Conference on Photovoltaic Energy Conversion, 6-10 September 2010, Valencia, Spain; 2783-2787
description: We have attained superior quality a-SiGe:H and nc-Si:H materials deposited at high rate, ~0.6 nm/s for
a-SiGe:H and 1-1.5 nm/s for nc-Si:H, and achieved improved multi-junction solar cell performance. For a-SiGe:H
based cells, we have focused our effort on further improving the a-SiGe:H film quality by carefully optimizing
process parameters, particularly with Ge content and profile, hydrogen dilution, deposition pressure and substrate-tocathode
distance, to fabricate a-SiGe:H films with low defect density and good stability. For nc-Si:H based solar cells,
we have mainly worked on improving the spatial uniformity and homogeneous properties for nc-Si:H deposition, and
on optimizing the plasma process and selecting species to deposit further improved nc-Si:H. We attained 10.1% and
11.2% stabilized efficiencies, respectively, for large-area (≥400 cm2) encapsulated a-Si:H/a-SiGe:H/a-SiGe:H and a-
Si:H/nc-Si:H/nc-Si:H triple-junction cells. Comparison between a-SiGe:H and nc-Si:H based technologies and future
improvement will be presented.
The Current State of the PV Market and Industrial Activities in Greece
Creators: name: Tselepis, S.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Deployment
Markets for PV Systems

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4431-4434
description: This paper presents in short the developments in the legal framework for PV systems and the current state of the
PV market, the achievements so far and the prospects in view of the modified RES Law. Obstacles in the promotion of the
PV programs are discussed and suggestions for improvement are proposed. In anticipation of a support scheme for PV
systems in Greece several industrial efforts were initiated to establish PV wafer, cell and module production in Greece. The
most noted efforts and the PV production capacity will be presented. Keywords: PV Market, Funding and Incentives,
Manufacturing and Processing.
Acanthorhynchus tenuirostris subsp. trochiloides Salomonsen
Creators: name: , Mary
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Chordata
Aves
Passeriformes
Meliphagidae
Acanthorhynchus

description: Acanthorhynchus tenuirostris trochiloides Salomonsen Acanthorhynchus tenuirostris trochiloides Salomonsen, 1966a: 11 (Bunya Mountains, 2000 feet altitude, southeastern Queensland, Australia). Now Acanthorhynchus tenuirostris tenuirostris (Latham, 1801). See Salomonsen, 1967: 437, Schodde and Mason, 1999: 325–327, Christidis and Boles, 2008: 185–191, and Higgins et al., 2008: 582–583. HOLOTYPE: AMNH 703280 (not 703283), adult male, collected in the Bunya Mountains, 2000 ft, 26.50S, 151.33E (USBGN, 1957), Queensland, Australia, on 3 October 1940, by Lindsay Macmillan (no. 374). COMMENTS: The AMNH number of the holotype in the original description was a misprint; AMNH 703280 is the only specimen of this species collected by Macmillan in the Bunya Mountains. After the outbreak of World War II and the Macmillans’ return to Australia from collecting in New Caledonia, Macmillan’s collecting in Queensland was supported by funds remaining in the Whitney South Sea Expedition account and continued until he entered active military service. For use of 1801 for the date of publication of Latham’s Supplementum Indicis Ornithologici, see Schodde et al. (2010).
description: Published as part of Mary, 2011, Type Specimens Of Birds In The American Museum Of Natural History Part 9. Passeriformes: Zosteropidae And Meliphagidae, pp. 1-193 in Bulletin of the American Museum of Natural History 2011 (348) on page 154
description: {"references": ["Salomonsen, F. 1966 a. Preliminary descriptions of new honey-eaters (Aves, Meliphagidae). Breviora 254: 1 - 12.", "Salomonsen, F. 1967. Family Meliphagidae. In R. A. Paynter, Jr (editor), Check-list of birds of the world, vol. 12: 338 - 450. Cambridge, MA: Museum of Comparative Zoology, ix + 495 pp.", "Schodde, R., and I. J. Mason. 1999. The directory of Australian birds. Passerines. Collingwood, Victoria: CSIRO Publishing, 851 pp.", "Christidis, L., and W. E. Boles. 2008. Systematics and taxonomy of Australian birds. Collingwood, Victoria: CSIRO Publishing, viii + 277 pp.", "Higgins, P. J., L. Christidis, and H. A. Ford. 2008. Meliphagidae (honeyeaters). In J. del Hoyo, A. Elliott, and D. Christie (editors), Handbook of birds of the world, vol. 13, Penduline-tits to shrikes: 498 - 691. Barcelona: Lynx Edicions, 879 pp., 60 pls., 536 photographs.", "Schodde, R., E. C. Dickinson, F. D. Steinheimer, and W. J. Bock. 2010. The date of Latham's Supplementum Indicis Ornithologici: 1801 or 1802? South Australian Ornithologist 35: 231 - 235."]}
To Be or not to Be on Social Media: Analysis Using Tragedy of Commons
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2022

description: Social media websites like Twitter and Facebook have become a treasure trove of data. Even today, people have not been able to fully comprehend the consequences, both positive and negative, of being on these websites. We have modeled the risks associated with such websites as a function of the population, i.e., the number of accounts present, along the lines of the tragedy of commons. We have tracked the variations between the average Strogartz Watts local clustering coefficient, the variance of Strogartz Watts local clustering coefficient and the global clustering coefficient as the number of accounts in a database increases. Regarding the average local and global clustering coefficient, researchers observed an initial phase of rapid increase followed by a phase of a continuous relatively smaller increase in their values. The variance of the average local clustering coefficient shows an initial phase of significant variation followed by a phase of continuous reduction in its value. Thus, the increase in the population size increases the transitivity of the network, increasing the risk associated with data being leaked via the website. The purpose of this research study is to simulate the social media connections and identify the application of the concept of ‘tragedy of commons’ in the social media domain. The researchers have also tried to look at insights obtained from simulations from a network theory perspective. The scope of this research study is to look at the way the connections are made on social media depending on the common interests of the people who use social media platforms. Using network theory, the researchers have tried to find out the connections structures. The researchers have used a simulation approach using a program that was written in C language on a UNIX system. Additional accounts to a hypothetical database were simulated using this program.
Evaluation of the Implementation of PV Feed-In Law in Portugal
Creators: name: Brito, M.C.
name: Serra, J.M.
name: Maia Alves, J.M.
name: Lobato, K.
name: Vallêra, A.M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Deployment
Markets for PV Systems

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4435-4437
description: In April 2008 a new feed-in law for the installation of micro-generation photovoltaic systems took off
in Portugal. The program includes a generous feed-in tariff, yearly adjusted depending on the success of the program.
The program was accompanied by the introduction of a novel online process for the registration, licensing and
inspection of small PV installations that reduces the delay between application and connection to the grid to about 6
months. The aim of this paper is to evaluate the implementation of this new program including an analysis of the
payback time and a discussion of the main administrative and technical challenges to the implementation of both the
feed-in law and the simplified registration process.
An empirical approach to selecting the first growing black hole seeds with JWST/NIRCam
Creators: name: Goulding, Andy D.
name: Greene, Jenny E.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The James Webb Space Telescope (JWST) will have the sensitivity to detect early low-mass black holes as they transition from "seeds" to supermassive black holes (BHs). Based on the JAGUAR mock catalog of galaxies, we present a clean color selection that takes advantage of the unique UV slope of accreting supermassive black holes with relatively low mass and high accretion rates. We show for a range of host stellar masses that those galaxies hosting $\sim 10^{6} M_{\odot}$ BHs radiating at >10% of their Eddington luminosity separate in color space from inactive systems. Here we propose a set of 3-band, 2-color selection boxes (with 90% completeness; 90% purity; balanced purity/completeness) with JWST/NIRCam to identify the most promising growing BH candidates at $z \sim 7-10$.
description: Updated to accepted version. 11 pages, 4 figures, 1 table. Published in ApJL
Pattern formation of frictional fingers in a gravitational potential
Creators: name: Eriksen, Jon Alm
name: Toussaint, Renaud
name: Måløy, Knut Jørgen
name: Flekkøy, Eirik
name: Sandnes, Bjørnar
Publisher: name: arXiv
Year: 2016
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Aligned finger structures, with a characteristic width, emerges during the slow drainage of a liquid/granular mixture in a tilted Hele-Shaw cell. A transition from vertical to horizontal alignment of the finger structures is observed as the tilting angle and the granular density are varied. An analytical model is presented, demonstrating that the alignment properties is the result of the competition between fluctuating granular stresses and the hydrostatic pressure. The dynamics is reproduced in simulations. We also show how the system explains patterns made during dyke formations.
description: 20 pages, 6 figures
Space constrained fast association rule mining with optimal support and confidence threshold using grammatical evolution: an effective nudge in policymaking
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2022

description: In the world of big data and social-media-headed governance and policymaking, data analysis is judged based on the speed and accuracy of execution. This study attempts to modify the existing Association Rule Mining (ARM) techniques by improving the space constraints. Although most of the ARM research is primarily focused on computational efficiency, it has not considered the identification of either the optimal support or the confidence value. Selection of ideal support, as well as confidence value, is vital for the ‘ARM’s quality. However, with the large dataset availability, the space vector poses the latest challenge in processing. Identification of the optimal parameters adapted to the space model is non-deterministic in nature. This research will focus on a Grammatical Evolution (GE) Association Rule Miner (GE-ARM) to identify the optimal threshold parameters for mining quality rules. Simulations are done using the FoodMart2000 dataset, and then, the proposed method is compared against the Apriori, the Frequent Pattern (FP) growth, and the Genetic Algorithms (GA). Simulation results exhibit substantial enhancements in space and rules generated together with time complexity. Compared to Apriori and FP-tree methods, the proposed GE-ARM achieves lesser runtime by around 20%. Such an improvisation would categorically change the dynamics of social media analytics by reducing the space constraints and can have more significant ramifications in policymaking. Therefore, such an improvement is undoubtedly an effective nudge in policymaking.
Comparison of Emitter Saturation Current Densities Determined by Quasi-Steady-State Photoconductance Measurements of Effective Carrier Lifetimes at High and Low Injections
Creators: name: Reichel, C.
name: Granek, F.
name: Benick, J.
name: Schultz-Wittmann, O.
name: Glunz, S.W.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1664-1669
description: Methods for the determination of the emitter saturation current density J0e in high and low injection regime and the influence of different models for the Auger recombination on the evaluation are presented and compared. In this study symmetrical test structures with different emitter profiles on highly doped and lowly doped substrates have been investigated. The samples were analyzed by injection-dependent lifetime spectroscopy (IDLS) with the contactless measurement of the photoconductance. For highly injected substrates, the model for the Auger recombination of Kerr et al. can be used for a wider range of excess carrier densities resulting in a more conservative estimation than with the models of Schmidt et al., Glunz et al. and Sinton et al.. With the Auger parameterisation of Kerr et al. at low injections the same observations as in high injection regime have been made. A good agreement was found between the different methods showing that an accurate determination of J0e is possible for both low and high resistivity materials. The results for samples with different diffused phosphorus emitter profiles show that J0e decreases with increasing sheet resistance which is in good agreement with other emitter studies.
Media Platforms as Blockholes of Information: App Economy and Burial of User-Generated Content
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2022

description: The present paper discusses the change in accessibility and searchability of data due to the popularity of mobile app versions of social media. The main argument is that new social media platforms restrict the access of search engines to the user-generated contents that are created and exchanged within them, and such trends have made access to public content more difficult. Focusing on the phrases “platforms as information blockhole” and “burial of content”, this article is a conceptual paper that argues that in contrast with the idea of freedom of information and data in world-wide-web, today mobile app platforms have formed close-core databases that search engines are restricted to access to them. The article warns that due to the increasing popularity of social media platforms, a huge volume of information is being generated and exchanged within them and this leads to new discrimination in access to the information. It also stresses the necessity of new types of syndication contracts between search engines and platforms as a new business model; or new policies that guarantee the findability of generating and exchanging public data on social media platforms.
Three-dimensional simulations of rapidly rotating core-collapse supernovae: finding a neutrino-powered explosion aided by non-axisymmetric flows
Creators: name: Takiwaki, Tomoya
name: Kotake, Kei
name: Suwa, Yudai
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report results from a series of three-dimensional (3D) rotational core-collapse simulations for $11.2$ and 27 $M_{/odot}$ stars employing neutrino transport scheme by the isotropic diffusion source approximation. By changing the initial strength of rotation systematically, we find a rotation-assisted explosion for the 27$M_{/odot}$ progenitor, which fails in the absence of rotation. The unique feature was not captured in previous two-dimensional (2D) self-consistent rotating models because the growing non-axisymmetric instabilities play a key role. In the rapidly rotating case, strong spiral flows generated by the so-called low $T/|W|$ instability enhance the energy transport from the proto-neutron star (PNS) to the gain region, which makes the shock expansion more energetic. The explosion occurs more strongly in the direction perpendicular to the rotational axis, which is different from previous 2D predictions.
description: Accepted for the publication in MNRAS Letters. 5 pages, 4 figures
The German PV Market 2009 - Solid Rock in Turbulent Waters?
Creators: name: Winkler, J.
name: Lohr, M.
name: Schmidt, F.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Deployment
Markets for PV Systems

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4443-4444
description: The dawn of 2009 saw several events which caused major turbulence in the global photovoltaic
industry. The Spanish PV market enlarged to an extent beyond all expectations and even outranked Germany as the
world’s number one market. As a result, the promotion scheme was modified and a market cap was introduced,
cutting back the maximum capacity to be installed to about the level of 2007. In the U.S., the election of Barack
Obama may be seen as the starting signal for a massive expansion in PV, likely to place the country in first place
globally within the next five years. Furthermore, numerous countries revised their promotion schemes and doing so
helped to set the path for a shining solar future. Against the background of these developments, the situation in
Germany appears to be remarkably steady at first glance. In fact, the 2009 amendment to the Renewable Energy
Sources Act (EEG) is unlikely to have a major impact on installed capacity. The increased degression of eight to ten
percent and the significant reduction of feed-in tariffs for plants larger than one MWp will be met by an even
stronger decline of system prices, caused by considerable oversupply on the manufacturers’ side. However, two
unknowns shadow the market’s prospects: the outcomes of the global financial crisis and the results of the 2009
governmental elections may hold significant implications for future PV promotion in Germany.
Biases and distribution patterns in hard-bodied microscopic animals (Acari: Halacaridae): Size doesn't matter, but generalism and sampling effort do
Creators: name: Rubio Lopez, Iñigo
name: Fontaneto, Diego
name: Pardos, Fernando
name: Martínez, Alejandro
name: García-Gómez, Guillermo
Publisher: name: Zenodo
Year: 2023
Subjects: Biogeography
diversity
macroecology
marine meiofauna
meiobenthos
mites
sampling bias
spatial scales
species richness

description: Aim The interplay between distribution ranges, species traits, and sampling and taxonomic biases remain elusive amongst microscopic animals. This ignorance obscures our understanding of the diversity patterns of a major component of biodiversity. Here, we used marine Halacaridae to explore whether differences between marine provinces can explain their distribution patterns or if differential sampling efforts across regions prevent any macroecological inference. Furthermore, we test if certain functional traits influence their distribution patterns. Location Europe. Results Whereas geographical variables provided a better explanation for differences in species composition, sampling effort and distance from marine biological stations accounted for the majority of differences in European Halacaridae richness. Species occurring in more habitats showed broader geographical ranges and accumulated more records. Species traits like body size affected the distribution of halacarid species. Main conclusions We propose that the sampling effort of halacarid mites in Europe might be explained by two different cognitive biases: the convenience of selecting certain sampling localities compared to others, and the tendency of zoologists to scrutinize habitats where their target organisms are more common.
description: See README.md file. In re-using the data, please cite the original publication in Diversity and Distribution.
A local pre-decoder to reduce the bandwidth and latency of quantum error correction
Creators: name: Smith, Samuel C.
name: Brown, Benjamin J.
name: Bartlett, Stephen D.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: A fault-tolerant quantum computer will be supported by a classical decoding system interfacing with quantum hardware to perform quantum error correction. It is important that the decoder can keep pace with the quantum clock speed, within the limitations on communication that are imposed by the physical architecture. To this end we propose a local `pre-decoder', which makes greedy corrections to reduce the amount of syndrome data sent to a standard matching decoder. We study these classical overheads for the surface code under a phenomenological phase-flip noise model with imperfect measurements. We find substantial improvements in the runtime of the global decoder and the communication bandwidth by using the pre-decoder. For instance, to achieve a logical failure probability of $f = 10^{-15}$ using qubits with physical error rate $p = 10^{-3}$ and a distance $d=22$ code, we find that the bandwidth cost is reduced by a factor of $1000$, and the time taken by a matching decoder is sped up by a factor of $200$. To achieve this target failure probability, the pre-decoding approach requires a $50\%$ increase in the qubit count compared with the optimal decoder.
description: 12 pages, 8 figures, comments welcome
Cycle and flow trusses in directed networks
Creators: name: Takaguchi, Taro
name: Yoshida, Yuichi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Social and Information Networks (cs.SI)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: When we represent real-world systems as networks, the directions of links often convey valuable information. Finding module structures that respect link directions is one of the most important tasks for analyzing directed networks. Although many notions of a directed module have been proposed, no consensus has been reached. This lack of consensus results partly because there might exist distinct types of modules in a single directed network, whereas most previous studies focused on an independent criterion for modules. To address this issue, we propose a generic notion of the so-called truss structures in directed networks. Our definition of truss is able to extract two distinct types of trusses, named the cycle truss and the flow truss, from a unified framework. By applying the method for finding trusses to empirical networks obtained from a wide range of research fields, we find that most real networks contain both cycle and flow trusses. In addition, the abundance of (and the overlap between) the two types of trusses may be useful to characterize module structures in a wide variety of empirical networks. Our findings shed light on the importance of simultaneously considering different types of modules in directed networks.
description: 26 pages, 7 figures. Supplementary Materials can be found in the journal reference
Supplemental Figure 1 and Tables 1-3
Creators: name: Fancher, Ibra
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 310204
subject: Genomics and transcriptomics

description: The accumulation of visceral adipose tissue (VAT) is strongly associated with cardiovascular disease and diabetes. In contrast, individuals with increased subcutaneous adipose tissue (SAT) without corresponding increases in VAT are associated with a metabolic healthy obese phenotype. These observations implicate dysfunctional VAT as a driver of disease processes, warranting investigation into obesity-induced alterations of distinct adipose depots. To determine the effects of obesity on adipose gene expression, mice were fed either a high fat or normal laboratory diet for 12-14 months. Mesenteric VAT and hindlimb SAT were isolated from four lean controls and four obese mice for bulk RNA-sequencing. AT from lean controls served as a reference to obesity-induced changes. The long-term high fat diet induced the expression of 169 and 814 unique genes in SAT and VAT, respectively. SAT from obese mice exhibited a total of 308 differentially expressed genes (164 upregulated, 144 downregulated). VAT from obese mice exhibited 690 differentially expressed genes (262 genes upregulated, 428 downregulated). KEGG pathway and GO analyses revealed that metabolic pathways were upregulated in SAT vs. downregulated in VAT while inflammatory signaling was upregulated in VAT. We next determined common genes that were differentially regulated between SAT and VAT in response to obesity and identified four genes that exhibited this profile: elovl6 and kcnj15 were upregulated in SAT/downregulated in VAT while trdn and hspb7 were downregulated in SAT/ upregulated in VAT. We propose that these genes in particular should be further pursued to determine their roles in SAT vs. VAT with obesity.
Characterisation of Triple-Junction Solar Cells Under High Concentration and Inhomogeneous Illumination
Creators: name: Vossier, A.
name: Dollet, A.
name: Hirsch, B.
name: Braun, A.
name: Katz, E.A.
name: Gordon, J.M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: Advanced Photovoltaics
Terrestrial Concentrator Systems

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 743-746
description: Localized irradiation experiments have been conducted on commercial triple-junction
(GaInP/GaInAs/Ge) solar cells, using different high-concentration optical systems, installed in two different geographical
locations. The solar radiation was directed onto the cell surface via quartz light guides of various shapes and sizes that could
deliver illumination patterns ranging from highly uniform to strongly peaked. Current-voltage curves were measured for
localized concentration levels between a few tens of suns up to about 9,000 suns. The fill factor data revealed that cell
performance is relatively insensitive to rather pronounced flux inhomogeneities. Although the ambient solar spectra in both
locations were quite similar and close to the AM1.5 reference spectrum, the concentrators and light guides in the two
separate laboratories produced non-negligibly differing light spectra onto the cell, which affect the measured photovoltaic
characteristics, especially conversion efficiency. However, normalizing measurements to account for spectral filtering of the
optical systems lead to consistent results. This work demonstrates that the localized irradiation probe procedure described
previously can be used for characterizing concentrator solar cells in different locations and by using different optical systems
provided that their spectral attenuation is carefully accounted for.
Impact of Electronic Word-of-Mouth (eWOM) on Travellers’ Green Hotel Booking Intentions and Policymaking
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2022

description: Nowadays, electronic word-of-mouth (eWOM) has become the primary source of tourism-related information. Travelers are increasingly seeking additional information provided in eWOM platforms to minimize the complexity and insecurity involved in making a purchase decision. However, there still is a lack of research on the impact of eWOM on travelers’ green hotel booking intentions. Therefore, this study aims to develop a theoretical model to examine the effects of positive and negative eWOM on travelers’ green hotel booking intentions and provide practical guidelines for hotel marketing and policymaking. To do this, a model was developed based on the theory of planned behavior (TPB) while positive and negative eWOM were linked to the model as two new factors. This study utilized a quantitative research approach and data collection was performed through an online survey questionnaire. Data was collected from 418 travelers who had the experience of searching on social media for collecting travel-related information. The statistical software SmartPLS and SPSS were used to analyze the data. Findings showed that customer attitudes, subjective norms, perceived behavioral controls, and positive eWOM positively influenced\ntravelers’ green hotel booking intentions. In contrast, the influence of negative eWOM on travelers’ green hotel booking intentions was not supported. The findings of this study can assist hotel managers in social and content media policymaking. Meanwhile, they can help policymakers in the tourism industry develop optimum policies. This study can provide new capabilities for policymakers to address existing challenges and opportunities and promote green practices in the hotel sector.
Use of Social Media Functionality for Improving Information Sharing, Problem-Solving, and Co-Production in a B2B Context
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2022

description: This study examines (i) the role of social media functionalities in building trust (ii) and trust’s role in achieving co-production of the value proposition. This research confirms the positive impact of social media functionality on developing trust. A cross-sectional survey is conducted based on the questionnaire method in this study. The sample was drawn from Tehranand Arak  companies located in Science and Technology Parks and industrial zones. Structural equation modeling was performed to test the relationship among the research variables. Drawing upon a sample of 358 participants working in industrial firms and using partial least squares structural equation modeling, the functionality of social media as particular tools to build trust is elaborated.  Also, our research results prove the critical impact of trust on the co-production of value proposition dimensions, i.e., knowledge and information sharing, problem-solving, and co-production. Furthermore, it is shown that technological uncertainty has a positive moderating effect on the relationship between trust and co-production. Conversely, competition intensity has a negative moderating influence on the relationship between trust and problem-solving. The results of this study is particularly useful for B2B firms and shows that by investing in social media activities, they can extend their communications with their client and stakeholders to develop trust effectively. Such investment reaps the benefit of co-production of the value proposition. Based on the results, this paper suggests managerial implications for policymakers, sales managers, IT managers, and social media directors who wish to build a strong relationship with their clients and motivate them to take part in their production process and help them improve both quality and services.
Quantum twist maps and dual canonical bases
Creators: name: Kimura, Yoshiyuki
name: Oya, Hironori
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Algebra (math.QA)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: 17B37, 13F60

description: In this paper, we show that quantum twist maps, introduced by Lenagan-Yakimov, induce bijections between dual canonical bases of quantum nilpotent subalgebras. As a corollary, we show the unitriangular property between dual canonical bases and Poincaré-Birkhoff-Witt type bases under the "reverse" lexicographic order. We also show that quantum twist maps induce bijections between certain unipotent quantum minors.
description: 13 pages, minor revision, to appear in Algebras and Representation Theory
title: Writing all this is helping me justify my plan and to see the futility of continuing: An Exploratory Study on the Use of Neutralization Techniques in Incel Manifestos
Creators: name: PAPATHEODOROU, KATERINA
Publisher: name: Georgia State University
Year: 2022

description:
Incels, or involuntary celibates, are a self-described, largely anonymous


online community of men who embrace and promote a deeply misogynistic worldview. This study explored how Incels use neutralization techniques (first identified in research by Sykes and Matza, 1957) through a thematic analysis of Incel manifestos, personal diaries, online blogs, and police interviews. Analysis revealed that violent Incels use a variety of neutralization techniques to justify their crimes. Entitlement was found to be the biggest rationale behind their views and actions. A new theme also emerged from the data centered around the belief that life is futile and nothing can improve their lives. This study has the potential to help us understand the psychological procedures that allow Incels to mobilize to violence and can help us assemble a more comprehensive picture of their worldview and psychology.
2D-XY ferromagnetism with high transition temperature in Janus monolayer V$_{2}$XN (X = P, As)
Creators: name: Wan, Wenhui
name: Fu, Botao
name: Liu, Chang
name: Guo, Rui
name: Ge, Yanfeng
name: Liu, Yong
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Two-dimensional (2D) XY magnets with easy magnetization planes support the nontrivial topological spin textures whose dissipationless transport is highly desirable for 2D spintronic devices. Here, we predicted that Janus monolayer V$_{2}$XN (X = P, As) with a square lattice are 2D-XY ferromagnets by first-principles calculations. Both the magnetocrystalline anisotropy and magnetic shape anisotropy favor an in-plane magnetization, leading to an easy magnetization $xy$-plane in Janus monolayer V$_{2}$XN. Resting on the Monte Carlo simulations, we observed the Berezinskii-Kosterlitz-Thouless (BKT) phase transition in monolayer V$_{2}$XN with transition temperature $T_{\rm BKT}$ being above the room temperature. Especially, monolayer V$_{2}$AsN has a magnetic anisotropy energy (MAE) of 292.0 $μ$eV per V atom and a $T_{\rm BKT}$ of 434 K, which is larger than that of monolayer V$_{2}$PN. Moreover, a tensile strain of 5\% can further improve the $T_{\rm BKT}$ of monolayer V$_{2}$XN to be above 500 K. Our results indicated that Janus monolayer V$_{2}$XN (X = P, As) were candidate materials to realize high-temperature 2D-XY ferromagnetism for spintronics applications.
description: 18 pages, 7 figures
Photovoltaic Power Plants in Urban Areas in Portugal: Feasibility Study
Creators: name: Augusto, A.
name: Carrilho Da Graca, G.
name: Serra, J.M.
name: Vallêra, A.M.
Publisher: name: WIP-Munich
Year: 2009
Subjects: PV Deployment
Enablers for PV Development and Benefits of PV

description: 24th European Photovoltaic Solar Energy Conference, 21-25 September 2009, Hamburg, Germany; 4534-4536
description: This paper presents a study to integrate photovoltaic (PV) production larger than micro-generation in
urban areas, using the school roofs as installation sites. This initiative is part of a more comprehensive effort to
increase dispersed electricity production as opposition to a conventional policy of centralized electricity production
often located far from the consumption sites, resulting important losses in the transmission grid (around 10% in
Portugal). This study addresses the following issues: What is the PV capacity potential available in the school’s
roofs; what is the cost and payback time of those PV systems and what is the resultant reduction of the CO2
emissions in Portugal as a consequence of this initiative. Each school can account with 60 to 140 kWp of PV
installed capacity, depending on the roof area availability. The total PV capacity for 172 schools comprised in this
study, with an area of 144000 m2, is estimated to be approximately 20 MWp. The total electricity production and
CO2 emissions avoided ranges between 20 and 31 GWh/year, and 7 to 11 MtonCO2/year, depending on the area of
the system.
Policy Dialogue, Collaboration and ICTS A Mobilization Decision Theory Perspective
Publisher: name: Iranian Research Institute for Information Science and Technology (IranDoc)
Year: 2022

description: The use of ICT to support activities in the policymaking process is on the increase. At the inception of the COVID-19 pandemic, Government agencies around the world relied on ICTs to either remotely support and/or enable policy-making activities. Policy-making activities occur via collaborative processes between interested parties by means of dialogue. Some extant ICTs utilized by government agencies support and enable collaboration and dialogue. However, the decision on what ICT to adopt is not always easy as a result of the failure of some ICTs to support the task they were designed for. As a result due diligence is needed by public service administrators to decide on which ICT to adopt. This implies a decision process required to decide if the public agency will mobilize resources to acquire and implement the ICT. But as most government agencies around the world have adopted ICT to support dialogue and collaborative activities in their policy making decision. This paper provides the result of a study where the mobilization-decision theory was used to analyse and explain reasons why government agencies around the world, aside the pressure from COVID-19, made the decision to mobilize resources to acquire, implement and utilize ICTs for policy dialogue and collaboration.
Fine-Line Screen Printing in Large Area Laser Grooved, Buried Contact Silicon Solar Cells
Creators: name: Cole, A.
name: Roberts, S.
name: Heasman, K.C.
name: Tregurtha, D.
name: Bruton, T.
name: Serenelli, L.
name: Salza, E.
name: Izzi, M.
name: Tucci, M.
name: Pirozzi, L.
Publisher: name: WIP-Munich
Year: 2008
Subjects: Wafer-Based Silicon Solar Cells and Materials Technology
Mono- and Multicrystalline Silicon Cells and Materials, Processing Technology of

description: 23rd European Photovoltaic Solar Energy Conference and Exhibition, 1-5 September 2008, Valencia, Spain; 1677-1681
description: Laser grooved buried contact (LGBC) solar cell technology is an attractive method for the production of solar cells designed to operate at one sun, and at low to medium concentration. This is mainly due to the low shading of the solar cell front by the grid contact and the front selective emitter under it, which ensures better collection for the short wavelength light. However, compared to standard screen printed solar cells, LGBC cells have a higher efficiency but require a more complex manufacturing process. As part of the EU funded project, “Lab2Line” we are marrying the screen printed and LGBC solar cell processing techniques in order to produce high efficiency 1 sun solar cells on large area (125x125 mm) wafers at the lowest cost. A fine line, screen printing
technology has been used previously [1, 2, 3] along with LGBC processes to produce solar cells on multicrystaline Si. Using improved processing steps, this project aims to produce industrially scalable production of high efficiency, fully Screen Printed, Laser Grooved, Buried Contact Solar Cells (SPBCSCs) on large area monocrystalline wafers.
Properties of the random-singlet phase: from the disordered Heisenberg chain to an amorphous valence-bond solid
Creators: name: Shu, Yu-Rong
name: Yao, Dao-Xin
name: Ke, Chih-Wei
name: Lin, Yu-Cheng
name: Sandvik, Anders W.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We use a strong-disorder renormalization group (SDRG) method and ground-state quantum Monte Carlo (QMC) simulations to study S=1/2 spin chains with random couplings, calculating disorder-averaged spin and dimer correlations. The QMC simulations demonstrate logarithmic corrections to the power-law decaying correlations obtained with the SDRG scheme. The same asymptotic forms apply both for systems with standard Heisenberg exchange and for certain multi-spin couplings leading to spontaneous dimerization in the clean system. We show that the logarithmic corrections arise in the valence-bond (singlet pair) basis from a contribution that can not be generated by the SDRG scheme. In the model with multi-spin couplings, where the clean system dimerizes spontaneously, random singlets form between spinons localized at domain walls in the presence of disorder. This amorphous valence-bond solid is asymptotically a random-singlet state and only differs from the random-exchange Heisenberg chain in its short-distance properties.
description: 15 pages; v2 new material on log corrections added