cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
திருக்குறளில் தொழில்கள்
Creators: name: Kala, Sree
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: மனிதன் செய்கின்ற தொழிலால் சிறப்படைகிறான் ஒரு தொழிலைச்செய்ய அடிப்படை தேவை முயற்சியும் ஈடுபாடும் ஆகும் வணிகம் செய்வார் வணிகத்தில் அறத்தை பின்பற்றவேண்டும் உணவுக்காக வேட்டையாடுவது வேடனின் தொழிலாகும்மண்பாண்டத்தொழில் தொல்பழந்தமிழர் தமிழகத்தில் வழக்கத்தில் இருந்ததைகலைப்படைப்புகள் உணர்த்துகின்றன சூது பெருங்குற்றமாக கருதப்பட்டது அடிப்படைத்தேவைகளை பூர்த்திசெய்ய எழுந்த தொழில்கள்பின்னாளில் குலத்தொழில் ஆயின
The Biological Concept of Neoteny in Evolutionary Colour Image Segmentation - Simple Experiments in Simple Non-Memetic Genetic Algorithms
Creators: name: Ramos, Vitorino
Publisher: name: arXiv
Year: 2004
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences
subject: I.2; I.5

description: Neoteny, also spelled Paedomorphosis, can be defined in biological terms as the retention by an organism of juvenile or even larval traits into later life. In some species, all morphological development is retarded; the organism is juvenilized but sexually mature. Such shifts of reproductive capability would appear to have adaptive significance to organisms that exhibit it. In terms of evolutionary theory, the process of paedomorphosis suggests that larval stages and developmental phases of existing organisms may give rise, under certain circumstances, to wholly new organisms. Although the present work does not pretend to model or simulate the biological details of such a concept in any way, these ideas were incorporated by a rather simple abstract computational strategy, in order to allow (if possible) for faster convergence into simple non-memetic Genetic Algorithms, i.e. without using local improvement procedures (e.g. via Baldwin or Lamarckian learning). As a case-study, the Genetic Algorithm was used for colour image segmentation purposes by using K-mean unsupervised clustering methods, namely for guiding the evolutionary algorithm in his search for finding the optimal or sub-optimal data partition. Average results suggest that the use of neotonic strategies by employing juvenile genotypes into the later generations and the use of linear-dynamic mutation rates instead of constant, can increase fitness values by 58% comparing to classical Genetic Algorithms, independently from the starting population characteristics on the search space. KEYWORDS: Genetic Algorithms, Artificial Neoteny, Dynamic Mutation Rates, Faster Convergence, Colour Image Segmentation, Classification, Clustering.
description: 12 pages, 3 figures, at http://alfa.ist.utl.pt/~cvrm/staff/vramos/ref_35.html
Next-to-next-to-leading order corrections to quark Quasi parton distribution functions
Creators: name: Chen, Long-Bin
name: Wang, Wei
name: Zhu, Ruilin
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present the next-to-next-to-leading order (NNLO) calculation of quark quasi parton distribution functions (PDFs) in the large momentum effective theory. The nontrivial factorization at this order is established explicitly and the full analytic matching coefficients between the quasi distribution and the lightcone distribution are derived. We demonstrate that the NNLO numerical contributions can improve the behavior of the extracted PDFs sizably. With the unprecedented precision study of nucleon tomography at the planned electron-ion collider, high precision Lattice QCD simulations with our NNLO results implemented will enable to test the QCD theory and more precise results on the PDFs of nucleons will be obtained.
description: 9 pages, 1 figure; comments and discussions are warmly welcome; v2: 10 pages, 2 figures, an error corrected, and numerical results added
Bodge: Python package for efficient tight-binding modeling of superconducting nanostructures
Creators: name: Ouassou, Jabir Ali
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Bodge is a free and open-source Python package for constructing large-scale real-space tight-binding models for calculations in condensed matter physics. "Large-scale" means that it should remain performant even for lattices with millions of atoms, and "real-space" means that the model is formulated in terms of individual lattice sites and not in momentum space, for example.
 Although general tight-binding models can be constructed with this package, the main focus is on the Bogoliubov-De Gennes ("BoDGe") Hamiltonian used to model superconductivity in the clean limit. The package is designed to be easy to use, flexible, and extensible - and very few lines of code are required to model heterostructures containing, e.g., conventional and unconventional superconductors, ferromagnets and antiferromagnets, altermagnetism, and spin-orbit coupling.
 In other words: If you want a lattice model for superconducting nanostructures, and want something that is computationally efficient yet easy to use, Bodge should be a good choice.
description: Software documentation (4 pages + references)
A Profile of the Mpumalanga Province: Demographics, Poverty, Income, Inequality and Unemployment from 2000 till 2007
Creators: name: Jacobs, Elne
name: Punt, Cecilia
name: Scheepers, Kabelo
name: Jacobs, Elne
name: Punt, Cecilia
name: Scheepers, Kabelo
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Security and Poverty
subject: Labor and Human Capital
subject: Demographic Trends and Forecasts
subject: Labor Force and Employment
subject: Size and Structure
subject: Agricultural Labor Markets

description: Mpumalanga’s agricultural sector is a dynamic and livelihood sustainable sector. Approximately 3.5% of Mpumalanga value added gross domestic product comes through agriculture and 2.3% of the population in Mpumalanga is working in this sector. There is thus a need for macro-economic research in order to investigate potential and current challenges and opportunities. This paper examines several of these challenges namely demographic compositions, unemployment, income distribution, poverty and inequality. It will provide results from the Labour Force Surveys from 2000 until 2007 with a more in-depth look into 2007. Population and labour force statistics provide the foundation for further analysis. This paper indicates that unemployment is being dominated by the African individuals and that employment in Mpumalanga agricultural sector is on a decreasing trend. It shows further that income distribution is highly skewed which leads to high levels of poverty and inequality. Agricultural incomes are lowest across all races compared to non-agricultural incomes except for the White farmers/farm workers who earn more than their counterparts in other sectors. One of the principal concerns is that of inequality. It shows no improvement since 2000 with a high in-between race inequality and lower within race inequality in Mpumalanga agricultural sector. Throughout the report Mpumalanga agricultural sector is compared to the non-agricultural sector, Mpumalanga overall and South Africa for a better understanding of Mpumalanga agricultural sector’s position. This report indicates that Mpumalanga agricultural sector could benefit from intervention and support to correct the present state of decreasing employment, low income, and high poverty and inequality levels.
A Profile of the Limpopo Province: Demographics, Poverty, Income, Inequality and Unemployment from 2000 till 2007
Creators: name: Jacobs, Elne
name: Punt, Cecilia
name: Ramathoka, Mabu
name: Masekoameng, Abel
name: Jacobs, Elne
name: Punt, Cecilia
name: Ramathoka, Mabu
name: Masekoameng, Abel
Publisher: name: Unknown
Year: 2009
Subjects: subject: Food Security and Poverty
subject: Labor and Human Capital
subject: Demographic Trends and Forecasts
subject: Labor Force and Employment
subject: Size and Structure
subject: Agricultural Labor Markets

description: The Limpopo agricultural sector is a dynamic and livelihood sustainable sector. Approximately 2.7% of the Limpopo value added gross domestic product comes through agriculture and 1.1% of the population in Limpopo is working in this sector. There is thus a need for macro-economic research in order to investigate potential and current challenges and opportunities. This paper examines several of these challenges namely demographic compositions, unemployment, income distribution, poverty and inequality. It will provide results from the Labour Force Surveys from 2000 until 2007 with a more in-depth look into 2007. Population and labour force statistics provide the foundation for further analysis. This paper indicates that unemployment is being dominated by the African individuals and that employment in the Limpopo agricultural sector was on a decreasing trend until 2005, where-after it stabilised. It shows further that income distribution is highly skewed which leads to high levels of poverty and inequality. Agricultural incomes are lowest across all races compared to non-agricultural incomes except for the White farmers/farm workers who earn more than their counterparts in other sectors. Poverty is extremely high for African workers in the Limpopo agricultural sector but has decreased since 2000, with a slight increase in 2007. One of the principal concerns is that of inequality. It shows no improvement since 2000 with a high in-between race inequality and lower within race inequality in the Limpopo agricultural sector. Throughout the report the Limpopo agricultural sector is compared to the non-agricultural sector, Limpopo overall and South Africa for a better understanding of Limpopo agricultural sector’s position. This report indicates that Limpopo agricultural sector could benefit from intervention and support to correct the present state of decreasing employment, low income, and high poverty and inequality levels.
Efficiency Estimates for the Agricultural Production in Vietnam: A Comparison of Parametric and Non-parametric Approaches
Creators: name: Nguyen, Khac Minh
name: Giang, Thanh Long
name: Nguyen, Khac Minh
name: Giang, Thanh Long
Publisher: name: Unknown
Year: 2009
Subjects: subject: Production Economics
subject: data envelopment analysis (DEA)
subject: stochastic frontier production function (SFPF)
subject: Spearman rank

description: This paper uses both parametric and non-parametric approaches to estimate technical, allocative, and economic efficiencies for the agriculture production in sixty provinces of Vietnam in the period 1990-2005. Under different technology specifications, both approaches show that the average technical, allocative, and economic efficiency estimates were not high, and there would be a large room for the studied provinces to improve their agricultural production efficiency. To examine consistency of the estimates from two approaches under different specifications of returns to scale, we use Spearman rank test, and the results indicate that parametric and non-parametric approaches provide different estimates.
title: Ð ÐµÐ»Ð°ÐºÑÐ°ÑÐ¸Ñ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð¸ ÑÑÑÑÐºÑÑÑÑ Ð² Ð½ÐµÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½Ð¾Ð¼ Ð²ÑÐ·ÐºÐ¾ÑÐ¿ÑÑÐ³Ð¾Ð¼ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ðµ
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Stress and structure relaxation in a nonequilibrium viscoelastic material
Creators: name: ÐÐ°ÑÐ°ÑÐµÐ²Ð°, Ð£Ð»ÑÑÐ½Ð°
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2023
Subjects: ÐÑÐ·ÐºÐ¾ÑÑÑ
ÐÐ°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ (Ð¼ÐµÑ .)
ÐÐ·Ð³Ð¸Ð±
ÑÐ¸ÐºÑÐ¸Ð²Ð½Ð°Ñ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ°
Ð½ÐµÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½Ð¾ÑÑÑ ÑÑÑÑÐºÑÑÑÑ
fictive temperature
nonequilibrium structure

description: Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¾Ð±ÑÑÐ¶Ð´Ð°ÑÑÑÑ Ð´Ð²Ð° Ð¿ÑÐ¾ÑÐµÑÑÐ°, ÑÐ²ÑÐ·Ð°Ð½Ð½ÑÐµ Ñ ÑÐµÐ»Ð°ÐºÑÐ°ÑÐ¸ÐµÐ¹ ÑÑÑÑÐºÑÑÑÑ Ð¼Ð°ÑÐµÑÐ¸Ð°Ð»Ð°. ÐÐ´Ð¸Ð½ Ð¿ÑÐ¾ÑÐµÑÑ Ð¿Ð¾ÑÐ¾Ð¶Ð´Ð°ÐµÑ ÑÐµÐ»Ð°ÐºÑÐ°ÑÐ¸Ñ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹. ÐÑÐ¾ÑÐ¾Ð¹ Ð¿ÑÐ¾ÑÐµÑÑ ÑÐ²ÑÐ·Ð°Ð½ Ñ ÑÐµÐ»Ð°ÐºÑÐ°ÑÐ¸ÐµÐ¹ ÑÑÑÑÐºÑÑÑÑ Ðº ÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½Ð¾Ð¼Ñ ÑÐ¾ÑÑÐ¾ÑÐ½Ð¸Ñ Ð¿Ð¾ÑÐ»Ðµ ÑÐµÐ»Ð°ÐºÑÐ°ÑÐ¸Ð¸ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹ Ð¸ Ð¾Ð¿Ð¸ÑÑÐ²Ð°ÐµÑÑÑ Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸ÐµÐ¼ ÑÐ¸ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ. ÐÐ±Ð° Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð¿ÑÐ¸Ð²Ð¾Ð´ÑÑ Ðº Ð¸Ð·Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ° Ð²ÑÐ·ÐºÐ¾ÑÑÐ¸. Ð Ð´Ð°Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÐµ Ð¿ÑÐ¾Ð²ÐµÐ´ÐµÐ½ Ð°Ð½Ð°Ð»Ð¸Ð· Ð¼Ð¾Ð´ÐµÐ»ÐµÐ¹ Ñ ÐºÐ¾ÑÑÑÐ¸ÑÐ¸ÐµÐ½ÑÐ¾Ð¼ Ð²ÑÐ·ÐºÐ¾ÑÑÐ¸, Ð·Ð°Ð²Ð¸ÑÑÑÐ¸Ð¼ Ð¾Ñ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ñ Ð¸ ÑÐ¸ÐºÑÐ¸Ð²Ð½Ð¾Ð¹ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÑ, Ð½Ð° Ð¿ÑÐ¸Ð¼ÐµÑÐµ ÑÐµÑÐµÐ½Ð¸Ñ Ð·Ð°Ð´Ð°Ñ Ð¾Ð¿Ð¸ÑÐ°Ð½Ð¸Ñ ÑÐµÐ»Ð°ÐºÑÐ°ÑÐ¸Ð¸ Ð² ÑÑÐ»Ð¾Ð²Ð¸ÑÑ Ð¾Ð´Ð½Ð¾Ð¾ÑÐ½Ð¾Ð³Ð¾ ÑÐ°ÑÑÑÐ¶ÐµÐ½Ð¸Ñ Ð¸ ÑÐ¶Ð°ÑÐ¸Ñ, Ð² Ð¸Ð·Ð¾Ð³Ð½ÑÑÐ¾Ð¹ Ð¿Ð»Ð°ÑÑÐ¸Ð½Ðµ Ð¸ Ð² Ð¿Ð»Ð°ÑÑÐ¸Ð½Ðµ Ð¿Ð¾Ð´ Ð´ÐµÐ¹ÑÑÐ²Ð¸ÐµÐ¼ ÑÐµÐ¼Ð¿ÐµÑÐ°ÑÑÑÐ½ÑÑ Ð½Ð°Ð¿ÑÑÐ¶ÐµÐ½Ð¸Ð¹.
description: In this paper, two processes related to relaxation of a material structure are discussed. One process generates stress relaxation. The second process is associated with the structural relaxation to an equilibrium state and is described by a change in fictive temperature. Both processes lead to a change in the viscosity. The analysis of models with a viscosity coefficient depending on stress and fictive temperature is carried out by the example of solving the problem of describing stress relaxation under uniaxial tension and compression and in a plate under the influence of temperature stresses.
Riemannian metrics on the moduli space of GHMC anti-de Sitter structures
Creators: name: Tamburelli, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: In this short note we explain how to adapt the construction of two Riemannian metrics on the $\mathrm{SL}(3,\mathbb{R})$-Hitchin component to the deformation space of globally hyperbolic anti-de Sitter structures: the pressure metric and the Loftin metric (studied by Qiongling Li). We show that the former is degenerate and we characterize its degenerate locus, whereas the latter is nowhere degenerate and the Fuchsian locus is a totally geodesic copy of Teichmüller space endowed with a multiple of the Weil-Petersson metric.
description: 18 pages
Physics at Tevatron Run II
Creators: name: Zieminska, Daria
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present recent physics results from the Tevatron Collider experiments CDF and D0. (contribution to Lattice 2004)
description: 7 pages, 16 figures
A Bakry-Émery Almost Splitting Result With Applications to the Topology of Black Holes
Creators: name: Galloway, Gregory J.
name: Khuri, Marcus A.
name: Woolgar, Eric
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The almost splitting theorem of Cheeger-Colding is established in the setting of almost nonnegative generalized $m$-Bakry-Émery Ricci curvature, in which $m$ is positive and the associated vector field is not necessarily required to be the gradient of a function. In this context it is shown that with a diameter upper bound and volume lower bound the fundamental group of such manifolds is almost abelian. Furthermore, extensions of well-known results concerning Ricci curvature lower bounds are given for generalized $m$-Bakry-Émery Ricci curvature. These include: the first Betti number bound of Gromov and Gallot, Anderson's finiteness of fundamental group isomorphism types, volume comparison, the Abresch-Gromoll inequality, and a Cheng-Yau gradient estimate. Finally, this analysis is applied to stationary vacuum black holes in higher dimensions to find that low temperature horizons must have limited topology, similar to the restrictions exhibited by (extreme) horizons of zero temperature.
description: Comm. Math. Phys., to appear
Direito e Justiça, v. 5 (1991)
Creators: name: Direito E Justiça
Publisher: name: Direito e Justiça
Year: 1991

description: Palavras iniciais...3-5 Seminário realizado em 13 de Dezembro de 1991...9-10 L'exemple des nationalisations françaises de 1982...11-29 Constitutional and legal problems of privatization in Germany...31-48 As privatizações na revisão constitucional de 1989 e na Lei n.º 11/90, de 5 de Abril...49-59 Indemnização justa ou irrisória? Comentário ao Acórdão n.º 39/88 do Tribunal Constitucional, de 9 de Fevereiro de 1988...61-70 As privatizações e o direito privado: alguns aspectos com especial referência ao sector bancário...71-89 Comissões arbitrais, indemnizações e privatizações...91-100 O direito de reversão...101-114 As indemnizações e as privatizações como institutos jurídico-financeiros...115-129 Costituzioni moderne in Africa e tradizione a tutela delle minoranze...133-154 A concordata e a ordem constitucional portuguesa...155-171 Do regime penal do cheque sem provisão (Decreto-Lei N.º 454/91, de 28 de Dezembro)...173-197 Algumas notas sobre as restrições contratuais à livre transmissão de acções...199-218 A zona económica exclusiva: um conceito do novo direito internacional do mar (conclusão)...219-277 Revogação da prisão preventiva - sua relação com a definição do objecto do processo - O crime continuado e a aplicação do art. 212.º, n.º 1, alínea a), do novo Código de Processo Penal...281-300 Programa do Congresso Internacional: Contratos - Actualidade e Evolução, realizado de 28 a 30 de Novembro de 1991, no Centro Regional do Porto da Faculdade de Direito da Universidade Católica Portuguesa...303-305
மணிமேகலையில் வெஞ்சின உணர்வுகள்
Creators: name: Kala, Sree
Publisher: name: figshare
Year: 2020
Subjects: subject: 200315 Indian Languages
subject: FOS: Languages and literature
subject: 200520 Indian Literature

description: மனிதமனம்ம் அடிப்படையில் அன்புமயமானது மனிதன் உணர்வு மயமானவன் ஆழ்மனதில் அன்புஉடையவளாக இருந்தாலும் சூழ்நிலை அவனை மாற்றுகிறது சூழ்நிலைகளால்மாறுதலடைந்த இராசமாதேவி சித்ராபதிஇன் வெ்சின உணர்வுகளை இக்கட்டுரை வெளிப்படுத்துவதாக உள்ளது அன்புகலந்த தாயுள்ளம் மகனின் மரணத்தால் வஞ்சனை கலந்த உள்ளமாக மாறுகிறது கணிகையர்குல வழக்கத்திற்கு மாறாக மணிமேகலை இருப்பதை சித்ராபதியால் தாங்கிக்கொள்ள முடியவில்லை அவளும் வெஞ்சினம் கொள்கிறாள் ஆனால் தன் எண்ணத்திலிருந்து மாறவுல்லை
Detectability of GRB Iron Lines by Swift, Chandra and XMM
Creators: name: Gou, L. J.
name: Meszaros, P.
name: Kallman, T. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The rapid acquisition of positions by the upcoming Swift satellite will allow the monitoring for X-ray lines in GRB afterglows at much earlier epochs than was previously feasible. We calculate the possible significance levels of iron line detections as a function of source redshift and observing time after the trigger, for the Swift XRT, Chandra ACIS and XMM Epic detectors. For bursts with standard luminosities, decay rates and equivalent widths of 1 keV assumed constant starting at early source-frame epochs, Swift may be able to detect lines up to z~1.5 with a significance of better than 3 sigma for times up to 10^4 s. The same lines would be detectable with better than 4 sigma significance at z up to 6 by Chandra, and up to 8 by XMM, for times of up to 10^5 s. For similar bursts with a variable equivalent width peaking at 1 keV between 0.5 and 1 days in the source frame, Swift achieves the same significance level for z~1 at t~1 day, while Chandra reaches the previous detection significances around t~ 1-2 days for z~ 2-4, i.e. the line is detectable near the peak equivalent width times, and undetectable at earlier or later times. For afterglows in the upper range of initial X-ray luminosites afterglows, which may also be typical of pop. III bursts, similar significance levels are obtained out to substantially higher redshifts. A distinction between broad and narrow lines to better than 3 sigma is possible with Chandra and XMM out to z~2 and ~6.5, respectively, while Swift can do so up to z~1, for standard burst parameters. A distinction between different energy centroid lines of 6.4 keV vs. 6.7 KeV (or 6.7 keV vs. Cobalt 7.2 keV) is possible up to z~0.6, 1.2, and 2 (z~ 1, 5, 7.5), with Swift,Chandra, and XMM respectively.
description: Accepted for publication in ApJ; 20 pages, 7 figures, minor changes to abstract and discussion
Almost Split Triangles and Morphisms Determined by Objects in Extriangulated Categories
Creators: name: Zhao, Tiwei
name: Tan, Lingling
name: Huang, Zhaoyong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 18E30, 18E10, 16G70

description: Let $(\mathfrak{C},\mathbb{E},\mathfrak{s})$ be an Ext-finite, Krull-Schmidt and $k$-linear extriangulated category with $k$ a commutative artinian ring. We define an additive subcategory $\mathfrak{C}_r$ (respectively, $\mathfrak{C}_l$) of $\mathfrak{C}$ in terms of the representable functors from the stable category of $\mathfrak{C}$ modulo $\mathfrak{s}$-injectives (respectively, $\mathfrak{s}$-projectives) to $k$-modules, which consists of all $\mathfrak{s}$-projective (respectively, $\mathfrak{s}$-injective) objects and objects isomorphic to direct summands of finite direct sums of all third (respectively, first) terms of almost split $\mathfrak{s}$-triangles. We investigate the subcategories $\mathfrak{C}_r$ and $\mathfrak{C}_l$ in terms of morphisms determined by objects, and then give equivalent characterizations on the existence of almost split $\mathfrak{s}$-triangles.
description: arXiv admin note: text overlap with arXiv:1612.02591 by other authors
Temperature dependence of isotropic hyperfine coupling constants of the mu-ethyl radical in faujasites
Creators: name: Bridges, Michael David
Publisher: name: University of British Columbia
Year: 2009

description: In this complete study of the isotropic hyperfine coupling constants (hfccs) of the Mu-ethyl radical in the NaY, HY and USY faujasites, across a temperature range of 5 to 500 K, the effects of changing the loading of guest molecules, and the type and number of cations in the zeolite was studied (while comparing the results to those of bulk ethene and silica-bound ethene), giving important information on the interactions of the radical with the faujasitic environments. This is the first such report of a neutral alkyl free-radical in an unperturbed faujasite environment, and the first report of ethyl radical hfccs in any zeolite. This is also the first time that proton hfccs for an alkyl radical have been measured in zeolites. Apart from changes in the magnitude of the proton hfccs, their temperature trends are similar to those of the bulk. At low temperatures, the muon hfccs values obtained were 10-15% higher than those observed in the bulk, an unprecedented hfcc shift for alkyl radicals and is the second largest environment-induced shift ever observed. Despite these shifts, the Mu-hfcc temperature-dependent trends follow the general shape of the bulk, indicating that intramolecular rotation about the Mu-ethyl radical's C-C bond is not strongly influenced by binding within the faujasite. Changing the loading of guest molecules in faujasites has a small, but present, effect on the Mu-ethyl radical's muon hfccs. Strangely, increases in loading have the opposite effect in HY than in NaY, potential evidence that differing cation site locations in NaY and HY, relative to the surrounding framework, cause microscopic differences in radical binding. By fitting an empirical equation offered by Roduner et al. to our data, we determined classical barriers to intramolecular rotation, which ranged from 1.16 to 1.36 (± 0.03 to 0.09) kJ mol⁻¹. Temperature-independent µALCR Δ₁ linewidths help support our supposition that the Mu-radical binds within the zeolite framework. Also, loss of Δ₁ peak intensity as temperature is increased indicates some sort of radical motion or isotropic averaging. This is the first case in which the Δ₁ resonance has disappeared with temperature for a zeolite-bound Mu-radical.
Synthesis, spectroscopic characterization and computational study of Ru(II)/DMSO complexes with monocoordinated carbazate ligands
Creators: name: Sousa, Luana M.
name: Diesley M. S. Araújo
name: Oliveira, Katia M.
name: Oliveira, Letícia P. De
name: Maia, Pedro I. S.
name: Deflon, Victor M.
name: Alzir A. Batista
name: Antônio E. H. Machado
name: Guerra, Wendell
name: Poelhsitz, Gustavo Von
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Hematology
subject: Plant Biology
subject: FOS: Biological sciences

description: Reaction of the precursor cis,fac-[RuCl2(dmso-S)3(dmso-O)] with three carbazate ligands led to new compounds of the type cis,fac-[RuCl2(dmso-S)3(L)] (L = benzylcarbazate (bc), 1; 4-methoxybenzylcarbazate (mc), 2; or 3,5-dimethoxy-α,α-dimethylbenzylcarbazate (mmc), 3). Complexes 1–3 have been characterized by elemental analysis (CHN), FTIR, UV–vis, and 1H and 13C{1H} NMR spectroscopy. Complex 1 was also analyzed by single-crystal X-ray diffraction and theoretical calculations were performed in order to better understand its spectroscopic data and electronic structure. All collected data were consistent with substitution of one dmso ligand by a monodentate carbazate ligand. Preliminary biological assays against breast and prostate human cancer cell lines were performed in order to evaluate the cytotoxic activity of these three new complexes.
Microwave Nanotube Transistor Operation at High Bias
Creators: name: Yu, Z.
name: Burke, C. Rutherglan P. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We measure the small signal, 1 GHz source-drain dynamical conductance of a back-gated single-walled carbon nanotube field effect transistor at both low and high dc bias voltages. At all bias voltages, the intrinsic device dynamical conductance at 1 GHz is identical to the low frequency dynamical conductance, consistent with the prediction of a cutoff frequency much higher than 1 GHz. This work represents a significant step towards a full characterization of a nanotube transistor for RF and microwave amplifiers.
description: 3 pages, 4 figures
title: Direito e Justiça, v. 3 n. Especial (1989): Volume de homenagem ao Prof. Doutor Manuel Gonçalves Cavaleiro de Ferreira
title: Volume de homenagem ao Prof. Doutor Manuel Gonçalves Cavaleiro de Ferreira
titleType: AlternativeTitle
Creators: name: Direito E Justiça
Publisher: name: Direito e Justiça
Year: 1989

description: Anotação curricular e bibliográfica sobre o Prof. Doutor Manuel Gonçalves Cavaleiro de Ferreira...3-10 Justiça e liberdade...11-17 Embargos processuais e embargos administrativos...19-38 Direitos fundamentais - liberdade religiosa e liberdade de aprender e ensinar...39-54 Evolução, estado actual e perspectivas futuras do direito penal internacional...55-82 A consciência da ilicitude potencial como pressuposto da punibilidade no antagonismo entre «culpa» e «prevenção»...83-110 O princípio no tratamento mais favorável no direito do trabalho actual...111-139 Garantia de emprego e crise económica. Contributo ensaístico para um novo conceito...141-162 Princípios gerais do processo penal e Constituição da República Portuguesa...163-177 O conceito de lei na Constituição Portuguesa - uma perspectiva de reflexão...179-216 O «risco da diversidade linguística» no comércio jurídico internacional - um caso luso-alemão...217-225
title: Direito e Justiça, v. 2 n. Especial (1987): Volume de homenagem ao Prof. Doutor Manuel Gonçalves Cavaleiro de Ferreira
title: Volume de homenagem ao Prof. Doutor Manuel Gonçalves Cavaleiro de Ferreira
titleType: AlternativeTitle
Creators: name: Direito E Justiça
Publisher: name: Direito e Justiça
Year: 1987

description: Nota da Direcção...1-1 Natureza jurídica da interpelação...5-22 «Curriculum» do Professor Doutor Manuel Gonçalves Cavaleiro de Ferreira...3-4 O consentimento do cônjuge na constituição de obrigações...23-31 Evolução histórica da sociedade familiar...33-55 Apontamento sobre a autonomização do direito penal no ensino universitário português...57-80 A teoria finalista e o ilícito civil...81-97 Notas sobre o homicídio no direito comum: um incidente com um estudante português, na Universidade de Sena, em 1471...99-108 Da pós-eficácia das obrigações...109-160 Uma unidade do direito da Propriedade Industrial?...161-200 Sobre o Direito Constitucional Comparado...201-222
Topology in Physics
Creators: name: Jackiw, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: The phenomenon of quantum number fractionalization is explained. The relevance of non-trivial phonon field topology is emphasized.
description: 9 pages, 5 figures
Programa do Congresso Internacional: Contratos - Actualidade e Evolução, realizado de 28 a 30 de Novembro de 1991, no Centro Regional do Porto da Faculdade de Direito da Universidade Católica Portuguesa
Creators: name: Redacção, A
Publisher: name: Direito e Justiça
Year: 2021

description: Direito e Justiça, v. 5 (1991)
Polyketide secondary metabolites of the Dominican sponge Plakortis angulospiculatus
Creators: name: Porter, Justin M.J.
Publisher: name: University of British Columbia
Year: 2009

description: As part of a search for new antifungal agents, the polyketide cyclic peroxides, compounds 32 and 33, were isolated from the Dominican sponge Plakortis angulospiculatus. Both compounds showed potent in vitro activity against Candida albicans. Chemical genetic profiling of the crude sponge extract and compound 33 indicated a non-specific mode of action against the yeast, Saccharomyces cerevisiae. Further exploration of the sponge extract yielded two furano polyketides, the newly discovered α,β-unsaturated ester, 37, and the previously isolated compound, glanvillic acid B (38). The structures were elucidated by one- and two-dimensional spectroscopic analysis of 32,33,37, and 38. [Chemical Diagrams]
The Large N Harmonic Oscillator as a String Theory
Creators: name: Itzhaki, Nissan
name: McGreevy, John
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We propose a duality between the large-N gauged harmonic oscillator and a novel string theory in two dimensions.
description: 31 pages, 2 figures; v2: fixed typos
New universal estimates for free boundary problems arising in plasma physics
Creators: name: Bartolucci, Daniele
name: Jevnikar, Aleks
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35J20, 35J61, 35Q99, 35R35, 76X05

description: For $Ω\subset \mathbb{R}^2$ a smooth and bounded domain, we derive a sharp universal energy estimate for non-negative solutions of free boundary problems on $Ω$ arising in plasma physics. As a consequence, we are able to deduce new universal estimates for this class of problems. We first come up with a sharp positivity threshold which guarantees that there is no free boundary inside $Ω$ or either, equivalently, with a sharp necessary condition for the existence of a free boundary in the interior of $Ω$. Then we derive an explicit bound for the $L^{\infty}$-norm of non-negative solutions and also obtain explicit estimates for the thresholds relative to other neat density boundary values. At least to our knowledge, these are the first explicit estimates of this sort in the superlinear case.
description: 14 pages. arXiv admin note: text overlap with arXiv:2006.04770
Bell-Correlated Activable Bound Entanglement in Multiqubit Systems
Creators: name: Bandyopadhyay, Somshubhro
name: Chattopadhyay, Indrani
name: Roychowdhury, Vwani P.
name: Sarkar, Debasis
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show that the Hilbert space of even number ($\geq4$) of qubits can always be decomposed as a direct sum of four orthogonal subspaces such that the normalized projectors onto the subspaces are activable bound entangled (ABE) states. These states also show a surprising recursive relation in the sense that the states belonging to $2N+2$ qubits are Bell correlated to the states of $2N$ qubits; hence, we refer to these states as Bell-Correlated ABE (BCABE) states. We also study the properties of noisy BCABE states and show that they are very similar to that of two qubit Bell-diagonal states.
Observational Constraints on Silent Quartessence
Creators: name: Amendola, Luca
name: Waga, Ioav
name: Finelli, Fabio
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We derive new constraints set by SNIa experiments (`gold' data sample of Riess et al.), X-ray galaxy cluster data (Allen et al. Chandra measurements of the X-ray gas mass fraction in 26 clusters), large scale structure (Sloan Digital Sky Survey spectrum) and cosmic microwave background (WMAP) on the quartessence Chaplygin model. We consider both adiabatic perturbations and intrinsic non-adiabatic perturbations such that the effective sound speed vanishes (Silent Chaplygin). We show that for the adiabatic case, only models with equation of state parameter $ |α|\lesssim 10^{-2}$ are allowed: this means that the allowed models are very close to \LambdaCDM. In the Silent case, however, the results are consistent with observations in a much broader range, -0.3
description: 7 pages, 12 figures, to be submitted to JCAP
Revogação da prisão preventiva - sua relação com a definição do objecto do processo - O crime continuado e a aplicação do art. 212.º, n.º 1, alínea a), do novo Código de Processo Penal
Creators: name: Machado, Miguel Nuno Pedrosa
Publisher: name: Direito e Justiça
Year: 2021

description: Direito e Justiça, v. 5 (1991)
Metasurface Integrated Monolayer Exciton Polariton
Creators: name: Chen, Yueyang
name: Miao, Shengnan
name: Wang, Tianmeng
name: Zhong, Ding
name: Saxena, Abhi
name: Chow, Colin
name: Whitehead, James
name: Xu, Xiaodong
name: Shi, Su-Fei
name: Majumdar, Arka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Monolayer transition metal dichalcogenides (TMDs) are the first truly two-dimensional (2D) semiconductor, providing an excellent platform to investigate light-matter interaction in the 2D limit. Apart from fundamental scientific exploration, this material system has attracted active research interest in the nanophotonic devices community for its unique optoelectronic properties. The inherently strong excitonic response in monolayer TMDs can be further enhanced by exploiting the temporal confinement of light in nanophotonic structures. Dielectric metasurfaces are one such two-dimensional nanophotonic structures, which have recently demonstrated strong potential to not only miniaturize existing optical components, but also to create completely new class of designer optics. Going beyond passive optical elements, researchers are now exploring active metasurfaces using emerging materials and the utility of metasurfaces to enhance the light-matter interaction. Here, we demonstrate a 2D exciton-polariton system by strongly coupling atomically thin tungsten diselenide (WSe2) monolayer to a silicon nitride (SiN) metasurface. Via energy-momentum spectroscopy of the WSe2-metasurface system, we observed the characteristic anti-crossing of the polariton dispersion both in the reflection and photoluminescence spectrum. A Rabi splitting of 18 meV was observed which matched well with our numerical simulation. The diffraction effects of the nano-patterned metasurface also resulted in a highly directional polariton emission. Finally, we showed that the Rabi splitting, the polariton dispersion and the far-field emission pattern could be tailored with subwavelength-scale engineering of the optical meta-atoms. Our platform thus opens the door for the future development of novel, exotic exciton-polariton devices by advanced meta-optical engineering.
Artificial Neoteny in Evolutionary Image Segmentation
Creators: name: Ramos, Vitorino
Publisher: name: arXiv
Year: 2004
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences
subject: I.2; I.5

description: Neoteny, also spelled Paedomorphosis, can be defined in biological terms as the retention by an organism of juvenile or even larval traits into later life. In some species, all morphological development is retarded; the organism is juvenilized but sexually mature. Such shifts of reproductive capability would appear to have adaptive significance to organisms that exhibit it. In terms of evolutionary theory, the process of paedomorphosis suggests that larval stages and developmental phases of existing organisms may give rise, under certain circumstances, to wholly new organisms. Although the present work does not pretend to model or simulate the biological details of such a concept in any way, these ideas were incorporated by a rather simple abstract computational strategy, in order to allow (if possible) for faster convergence into simple non-memetic Genetic Algorithms, i.e. without using local improvement procedures (e.g. via Baldwin or Lamarckian learning). As a case-study, the Genetic Algorithm was used for colour image segmentation purposes by using K-mean unsupervised clustering methods, namely for guiding the evolutionary algorithm in his search for finding the optimal or sub-optimal data partition. Average results suggest that the use of neotonic strategies by employing juvenile genotypes into the later generations and the use of linear-dynamic mutation rates instead of constant, can increase fitness values by 58% comparing to classical Genetic Algorithms, independently from the starting population characteristics on the search space. KEYWORDS: Genetic Algorithms, Artificial Neoteny, Dynamic Mutation Rates, Faster Convergence, Colour Image Segmentation, Classification, Clustering.
description: 10 pages, 4 figures
Embedding a Field Experiment in Contingent Valuation to Measure Context-Dependent Risk Preferences: An Application to Wildfire Risk
Creators: name: Rollins, Kimberly S.
name: Kobayashi, Mimako
name: Rollins, Kimberly S.
name: Kobayashi, Mimako
Publisher: name: Unknown
Year: 2010
Subjects: Research and Development/Tech Change/Emerging Technologies
Risk and Uncertainty

description: This paper contributes towards the development of an approach that would generate welfare measures that accommodate non-expected utility risk preferences. Combining the merits of elicitation approaches used in field experiments with contingent valuation, we embed an experimental design that systematically varies probabilities and losses across a survey sample in a willingness to pay elicitation format, where a hypothetical situation is described that closely resembles the actual policy context. We apply the proposed elicitation and estimation approaches to estimate the risk preferences of a representative homeowner who faces probabilistic wildfire risks and an investment option that reduces losses due to wildfire. Based on prospect theory, we estimate parameters of probability weighting, risk preferences and use individual characteristics as covariates for these parameters and as utility shifters. We find that risk preferences are consistent with non-expected utility theory. We also find that the use of individual characteristics as utility shifters, as is standard non-market valuation, attenuates some of the effects of the probability weights. Prior experience with wildfire is associated with risk preferences that are closer to expected utility theory.
Contravariant Densities, Complete Distances and Relative Fidelities for Quantum Channels
Creators: name: Belavkin, V P
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Introducing contravariant trace-densities for quantum states, we restore one to one correspondence between quantum operations described by normal CP maps and their trace densities as Hermitian positive operator-valued contravariant kernels. The CB-norm distance between two quantum operations with type one input algebras is explicitly expressed in terms of these densities, and this formula is also extended to a generalized CB-distances between quantum operations with type two inputs. A larger C-distance is given as the natural norm-distance for the channel densities, and another, Helinger type distance, related to minimax mean square optimization problem for purification of quantum channels, is also introduced and evaluated in terms of their contravariant trace-densities. It is proved that the Helinger type complete fidelity distance between two channels is equivalent to the CB distance at least for type one inputs, and this equivalence is also extended to type two for the generalized CB distance. An operational meaning for these distances and relative complete fidelity for quantum channels is given in terms of quantum encodings as generalized entanglements of quantum states opposite to the inputs and the output states.
description: 15 pages. Reported at the Quantum Communication, Measurement and Computation conference, July 2002, Boston, USA. Published version
Alternative structures and bi-Hamiltonian systems on a Hilbert space
Creators: name: Marmo, G.
name: Scolarici, G.
name: Simoni, A.
name: Ventriglia, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss transformations generated by dynamical quantum systems which are bi-unitary, i.e. unitary with respect to a pair of Hermitian structures on an infinite-dimensional complex Hilbert space. We introduce the notion of Hermitian structures in generic relative position. We provide few necessary and sufficient conditions for two Hermitian structures to be in generic relative position to better illustrate the relevance of this notion. The group of bi-unitary transformations is considered in both the generic and non-generic case. Finally, we generalize the analysis to real Hilbert spaces and extend to infinite dimensions results already available in the framework of finite-dimensional linear bi-Hamiltonian systems.
description: 11 pages
Risk Preferences and Demand for Insurance in Peru: A Field Experiment
Creators: name: Galarza, Francisco B.
name: Carter, Michael R.
name: Galarza, Francisco B.
name: Carter, Michael R.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Risk and Uncertainty
subject: area-yield insurance
subject: credit
subject: covariate risk
subject: idiosyncratic risk
subject: risk aversion
subject: experimental economics
subject: Peru

description: This paper reports the results of behavioral economic experiments conducted in Peru to examine the relationship amongst risk preferences, loan take-up, and insurance purchase decisions. This area-based yield insurance can help reduce people's vulnerability to large scale covariate shocks, and can also lower the loan default probability under extreme negative covariate shocks. In a context of collateralized formal credit markets, we provide suggestive evidence that insurance may help reduce the fear of losing collateral that prevents potential borrowers from taking loans. Framing these experiments to recreate a real life situation, we started with a Baseline Game where subjects had to choose between a fallback production project and an uninsured loan. We then introduced a third project choice--loan with yield insurance (Insurance Game)--which allows us to measure the effect of introducing insurance on the demand for loans. Overall, more than 50 percent of the subjects are willing to buy insurance in this insurance game. Further, controling for the number of peers in the ag network, wealth, and choices made in the baseline game, we find that the project choice decision is predicted by a judgment bias known as hot-hand effect, and risk aversion. In the latter case, the shape of the relationship is quadratic, meaning that highly risk averse subjects will prefer switching to the risky, uninsured loan project, while those showing a low and moderate risk aversion will stick to the safer (fallback or insured loan) projects.
Scaling of the Reduced Energy Spectrum of Random Matrix Ensemble
Creators: name: Rao, Wen-Jia
name: Chen, M. N.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study the reduced energy spectrum $\{E_{i}^{(n)}\}$, which is constructed by picking one level from every $n$ levels of the original spectrum $\{E_{i}\}$, in a Gaussian ensemble of random matrix with Dyson index $β\in \left( 0,\infty \right) $. It's shown $\{E_{i}^{(n)}\}$ bears the same form of probability distribution as $\{E_{i}\}$ with a rescaled parameter $γ=\frac{n(n+1)}{2}β+n-1$. Notably, the $n$-th order level spacing and non-overlapping gap ratio in $\{E_{i}\}$ become the lowest-order ones in $\{E_{i}^{(n)}\}$, hence their distributions will rescale in an identical way. Numerical evidences are provided by simulating random spin chain as well as modelling random matrices. Our results establish the higher-order spacing distributions in random matrix ensembles beyond GOE,GUE,GSE, and reveals a hierarchy of structures hidden in the energy spectrum.
description: 8 pages, 4 figures
k-core organization of complex networks
Creators: name: Dorogovtsev, S. N.
name: Goltsev, A. V.
name: Mendes, J. F. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Networking and Internet Architecture (cs.NI)
subject: Mathematical Physics (math-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We analytically describe the architecture of randomly damaged uncorrelated networks as a set of successively enclosed substructures -- k-cores. The k-core is the largest subgraph where vertices have at least k interconnections. We find the structure of k-cores, their sizes, and their birth points -- the bootstrap percolation thresholds. We show that in networks with a finite mean number z_2 of the second-nearest neighbors, the emergence of a k-core is a hybrid phase transition. In contrast, if z_2 diverges, the networks contain an infinite sequence of k-cores which are ultra-robust against random damage.
description: 5 pages, 3 figures
3D printed dielectric lens for the gain enhancement of a broadband antenna
Creators: name: Anwar, Muhammad Sohail
name: Abufanas, Hasan
name: Bangert, Axel
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: 3D printing
subject: broadband gain enhancement
subject: dielectric lens
subject: fused deposition method
subject: near-zero refractive index
subject: 600
subject: 3D-Druck
subject: Linse
subject: Breitbandantenne
subject: Fused Deposition Modeling

description: Gefördert im Rahmen des Projekts DEAL