cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A dS obstruction and its phenomenological consequences
Creators: name: Montero, Miguel
name: Van Riet, Thomas
name: Venken, Victoria
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this note we observe that positive runaway potentials can generically be stabilized by abelian $p$-form fluxes, leading to parametrically controlled de Sitter solutions after compactification to a lower dimension. When compactifying from 4d to 2d the dS solutions are metastable, whereas all higher dimensional cases are unstable. The existence of these dS solutions require that a certain inequality involving the derivatives of the potential and $p$-form gauge coupling is satisfied. This inequality is not satisfied in simple stringy examples (outside of the scope of Maldacena-Nuñez), which unsurprisingly avoid this route to dS solutions. We can apply our techniques to construct $dS_2$ solutions in the Standard Model plus an additional runaway scalar such as quintessence. Demanding that these are avoided leads to (weak) phenomenological constraints on the time variation of the fine structure constant and QCD axion-photon coupling.
description: 19 pages + references v2: fixed typos, minor corrections
Group Analysis of Nonlinear Internal Waves in Oceans. III: Additional conservation laws
Creators: name: Ibragimov, Nail H.
name: Ibragimov, Ranis N.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 74J30

description: Using the maximal Lie algebra of point symmetries of a system of nonlinear equations used in geophysical fluid dynamics, two conservation laws are found in addition to the conservation of energy.
Paramormia subcostalis Jezek 2004
Creators: name: Tkoč, Michal
name: Pecharová, Martina
name: Ježek, Jan
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Paramormia
Paramormia subcostalis

description: Paramormia subcostalis Ježek, 2004
(http://www.morphbank.net/?id=840060)
 Paramormia subcostalis Ježek, 2004c: 131, Figs 16–28.
Four paratypes are deposited in NMPC:
 PARATYPES (4 JJ): ‘ Malaysia / Hulu, Perak, Belum / Expedition, Belum / Camp, 5° 30’ 07’’ N, / 101° 26’ 21’’ E / 10857 [10857–10860] / iv.–vi. 1994, / Rothamsted light trap [p] // Paramormia / subcostalis / Ježek, 2004 / male / PARATYPE / Cat. No. 34019 [34019–34022] / J. Ježek det. / 2004 [p, yellow label]’.
 Current status. Valid species.
description: Published as part of Tkoč, Michal, Pecharová, Martina & Ježek, Jan, 2014, Catalogue of the type specimens of Diptera deposited in the Department of Entomology, National Museum, Prague, Czech Republic *, pp. 789-837 in Acta Entomologica Musei Nationalis Pragae 54 (2) on page 812, DOI: 10.5281/zenodo.5300543
Subset sums in abelian groups
Creators: name: Balandraud, Eric
name: Girard, Benjamin
name: Griffiths, Simon
name: Hamidoune, Yahya Ould
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Group Theory (math.GR)
subject: Number Theory (math.NT)
subject: FOS: Mathematics

description: Denoting by Sigma(S) the set of subset sums of a subset S of a finite abelian group G, we prove that |Sigma(S)| >= |S|(|S|+2)/4-1 whenever S is symmetric, |G| is odd and Sigma(S) is aperiodic. Up to an additive constant of 2 this result is best possible, and we obtain the stronger (exact best possible) bound in almost all cases. We prove similar results in the case |G| is even. Our proof requires us to extend a theorem of Olson on the number of subset sums of anti-symmetric subsets S from the case of Z_p to the case of a general finite abelian group. To do so, we adapt Olson's method using a generalisation of Vosper's Theorem proved by Hamidoune and Plagne.
description: 22 pages, submitted
On the reconstruction accuracy of multi-coil MRI with orthogonal projections
Creators: name: Breger, Anna
name: Llorden, Gabriel Ramos
name: Ferrero, Gonzalo Vegas Sanchez -
name: Hoge, W. Scott
name: Ehler, Martin
name: Westin, Carl-Fredrik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Medical Physics (physics.med-ph)
subject: Numerical Analysis (math.NA)
subject: Image and Video Processing (eess.IV)
subject: Signal Processing (eess.SP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: MRI signal acquisition with multiple coils in a phased array is nowadays commonplace. The use of multiple receiver coils increases the signal-to-noise ratio (SNR) and enables accelerated parallel imaging methods. Some of these methods, like GRAPPA or SPIRiT, yield individual coil images in the k-space domain which need to be combined to form a final image. Coil combination is often the last step of the image reconstruction, where the root sum of squares (rSOS) is frequently used. This straightforward method works well for coil images with high SNR, but can yield problems in images with artifacts or low SNR in all individual coils. We aim to analyze the final coil combination step in the framework of linear compression, including principal component analysis (PCA). With two data sets, a simulated and an in-vivo, we use random projections as a representation of the whole space of orthogonal projections. This allows us to study the impact of linear compression in the image space with diverse measures of reconstruction accuracy. In particular, the $L_2$ error, variance, SNR, and visual results serve as performance measures to describe the final image quality. We study their relationships and observe that the $L_2$ error and variance strongly correlate, but as expected minimal $L_2$ error does not necessarily correspond to the best visual results. In terms of visual evaluation and SNR, the compression with PCA outperforms all other methods, including rSOS on the uncompressed image space data.
Bericht über die Tätigkeit des Landesmuseums in Bonn in der Zeit vom 1. Januar 1941 bis 31. Dezember 1945
Creators: name: Oelmann, Franz
Publisher: name: Bonner Jahrbücher
Year: 2020

description: Bonner Jahrbücher, Bd. 148 (1948): Bonner Jahrbücher des Vereins von Altertumsfreunden im Rheinlande und des Rheinischen Provinzialmuseums in Bonn
Gevrey-Type Resolvent Estimates at the Threshold for a Class of Non-Selfadjoint Schrödinger Operators
Creators: name: Wang, Xue Ping
Publisher: name: Dipartimento di Matematica, Università di Bologna
Year: 2015
Subjects: subject: Gevrey estimate of resolvent; threshold spectral analysis; non-selfadjoint Schrödinger operators; Witten Laplacian
subject: 35J10; 35P15; 47A55

description: In this article, we show that under some coercive assumption on the complex-valued potential V(x), the derivatives of the resolvent of the non-selfadjoint Schröinger operator H = −∆ + V(x) satisfy some Gevrey estimates at the threshold zero. As applications, we establish subexponential time-decay estimates of local energies for the semigroup e−tH, t > 0. We also show that for a class of Witten Laplacians for which zero is an eigenvalue embedded in the continuous spectrum, the solutions to the heat equation converges subexponentially to the steady solution.
description: Bruno Pini Mathematical Analysis Seminar, Seminars 2015
Nucleosynthesis during the Merger of White Dwarfs and the Origin of R Coronae Borealis Stars
Creators: name: Longland, R.
name: Lorén-Aguilar, P.
name: José, J.
name: García-Berro, E.
name: Althaus, L. G.
name: Isern, J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Many hydrogen deficient stars are characterised by surface abundance patterns that are hard to reconcile with conventional stellar evolution. Instead, it has been suggested that they may represent the result of a merger episode between a helium and a carbon-oxygen white dwarf. In this Letter, we present a nucleosynthesis study of the merger of a 0.4 M_sol helium white dwarf with a 0.8 M_sol carbon-oxygen white dwarf, by coupling the thermodynamic history of Smoothed Particle Hydrodynamics particles with a post-processing code. The resulting chemical abundance pattern, particularly for oxygen and fluorine, is in qualitative agreement with the observed abundances in R Coronae Borealis stars.
description: 5 Pages, 2 figures. Accepted to Astrophysical Journal Letters; http://stacks.iop.org/2041-8205/737/L34
Energy Usage, Health Issues, and Pro-Environmental Behaviour: Exploring the Link and Promoting Energy Change in Kyrgyzstan
Creators: name: Hamelin, N
name: Bhatti, Ishaq
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 51
subject: Physical sciences
subject: FOS: Physical sciences
classificationCode: 40
subject: Engineering
classificationCode: 33
subject: Built environment and design

description: Background: This study examines the relationship between energy usage, health issues, and pro-environmental behaviour (PEB) in Kyrgyzstan amidst the country’s commitment to transition from coal-based energy to renewable sources, in line with the Paris Agreement. The purpose is to investigate citizens’ attitudes towards PEB and their intentions to engage in environmentally friendly actions, focusing on gas, electricity, and coal. Methods: Drawing upon the Theory of Planned Behaviour (TPB) framework, a survey was conducted among 1455 respondents to explore attitudes towards PEB and energy sources’ impact on health issues. Results: Decarbonization efforts in Kyrgyzstan and Central Asia are in their early stages, with coal remaining a primary energy source. The study emphasizes the importance of governmental policies and citizen action in achieving decarbonization goals. Rising electricity costs outweigh the increase in indirect energy costs for food, posing challenges for households adapting to changing energy dynamics. Conclusions: Targeted interventions and communication strategies are crucial to promote pro-environmental behaviour and facilitate the transition to sustainable energy sources. Understanding the relationships between health concerns, air pollution awareness, PEB, and energy source choices can inform policymakers and organizations to ensure a sustainable and healthy future for Kyrgyzstan and other Central Asian countries.
The Quaternionic Hardy Space and the Geometry of the Unit Ball
Creators: name: Sarfatti, Giulia
Publisher: name: Dipartimento di Matematica, Università di Bologna
Year: 2015
Subjects: subject: Hardy space on the quaternionic ball; functions of a quaternionic variable; invariant Riemannian metric
subject: 30G35; 46E22; 58B20

description: The quaternionic Hardy space of slice regular functions H2(B) is a reproducing kernel Hilbert space. In this note we see how this property can be exploited to construct a Riemannian metric on the quaternionic unit ball B and we study the geometry arising from this construction. We also show that, in contrast with the example of the Poincaré metric on the complex unit disc, no Riemannian metric on B is invariant with respect to all slice regular bijective self maps of B.
description: Bruno Pini Mathematical Analysis Seminar, Seminars 2015
Perakomyia sifneri Jezek 2010
Creators: name: Tkoč, Michal
name: Pecharová, Martina
name: Ježek, Jan
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Perakomyia
Perakomyia sifneri

description: Perakomyia sifneri Ježek, 2010
(http://www.morphbank.net/?id=840061)
 Perakomyia sifneri Ježek, 2010: 247, Figs 37–53.
Four paratypes are deposited in NMPC:
 PARATYPES (4 JJ): ‘ Malaysia / Hulu, Perak, Belum / Expedition, Belum / Camp / 17662 [17662–17665] / iv.–vi. 1994, / Rothamsted light trap [p] // Perakomyia sifneri / Ježek, 2010 / male / PARATYPE / Cat. No. 34500 [34500–34503] / J. Ježek det. / 2010 [p, yellow label]’.
 Current status. Valid species.
description: Published as part of Tkoč, Michal, Pecharová, Martina & Ježek, Jan, 2014, Catalogue of the type specimens of Diptera deposited in the Department of Entomology, National Museum, Prague, Czech Republic *, pp. 789-837 in Acta Entomologica Musei Nationalis Pragae 54 (2) on page 812, DOI: 10.5281/zenodo.5300543
Optimum Partition Parameter of Divide-and-Conquer Algorithm for Solving Closest-Pair Problem
Creators: name: Karim, Mohammad Zaidul
name: Akter, Nargis
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: Divide and Conquer is a well known algorithmic procedure for solving many kinds of problem. In this procedure, the problem is partitioned into two parts until the problem is trivially solvable. Finding the distance of the closest pair is an interesting topic in computer science. With divide and conquer algorithm we can solve closest pair problem. Here also the problem is partitioned into two parts until the problem is trivially solvable. But it is theoretically and practically observed that sometimes partitioning the problem space into more than two parts can give better performances. In this paper, a new proposal is given that dividing the problem space into (n) number of parts can give better result while divide and conquer algorithm is used for solving the closest pair of point's problem.
description: arXiv admin note: substantial text overlap with arXiv:1010.5908
MAKTABGACHA TA'LIM YOSHDAGI BOLALARDA SOG'LOM TURMUSH TARZINI SHAKLLANTIRISHNING PEDAGOGIK IMKONIYATLARI
Creators: name: Guljaxon Kurbonturdiyeva Dovletovna, Buxoro, Turkiston Yangi Innovatsiyalar Universiteti, 1-bosqich magistranti, Maktabgacha ta'lim
Publisher: name: Zenodo
Year: 2023

description: Maktabgacha ta'lim pedagogikasi fani eng muhim asosiy pedagogik munosabatlar sabablarini aniqlaydi, uni pedagogik jarayonda o'rganadi. Ushbu maqolada Maktabgacha ta'lim yoshdagi bolalarda sog'lom turmush tarzini shakllantirishning pedagogik imkoniyatlari haqida so`z yuritilgan.
Kalit so`zlar: Maktabgacha ta'lim pedagogikasi, pedagogika, o'quv-tarbiya faoliyati, innovatsion texnologiya usullari,
Reconciling the past: Japan's wartime atrocities and the legacies of post-war narrative tensions between Japan, China and South Korea
Creators: name: Sugama, Terence
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 177-186
description: This thesis will examine the role of narrative in shaping the Japanese account of its war past in the lead-up to and throughout the Second World War and, specifically, Japanese atrocities and aggression directed against China, Korea and its nationals. It will argue that Japan has thus far been unable to definitively resolve those tensions within Japanese society and without, from the victims of atrocity in the People's Republic of China (China) and the Republic of Korea (South Korea) in forming a coherent wartime narrative that remembers both the horror of war for the Japanese and acknowledges the suffering of their victims. Further, this thesis contends that a meaningful engagement in acts of reconciliation, a tool of restorative justice, between Japan and victims in China and South Korea is both desirable and necessary in alleviating those tensions.
Stable pair invariants of local Calabi-Yau 4-folds
Creators: name: Cao, Yalong
name: Kool, Martijn
name: Monavari, Sergej
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: In 2008, Klemm-Pandharipande defined Gopakumar-Vafa type invariants of a Calabi-Yau 4-fold $X$ using Gromov-Witten theory. Recently, Cao-Maulik-Toda proposed a conjectural description of these invariants in terms of stable pair theory. When $X$ is the total space of the sum of two line bundles over a surface $S$, and all stable pairs are scheme theoretically supported on the zero section, we express stable pair invariants in terms of intersection numbers on Hilbert schemes of points on $S$. As an application, we obtain new verifications of the Cao-Maulik-Toda conjectures for low degree curve classes and find connections to Carlsson-Okounkov numbers. Some of our verifications involve genus zero Gopakumar-Vafa type invariants recently determined in the context of the log-local principle by Bousseau-Brini-van Garrel. Finally, using the vertex formalism, we provide a few more verifications of the Cao-Maulik-Toda conjectures when thickened curves contribute and also for the case of local $\mathbb{P}^3$.
description: Published version, 23 pages
Deformation of Ne isotopes in the island-of-inversion region
Creators: name: Sumi, Takenori
name: Minomo, Kosho
name: Tagami, Shingo
name: Kimura, Masaaki
name: Matsumoto, Takuma
name: Ogata, Kazuyuki
name: Shimizu, Yoshifumi R.
name: Yahiro, Masanobu
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The deformation of Ne isotopes in the island-of-inversion region is determined by the double-folding model with the Melbourne $g$-matrix and the density calculated by the antisymmetrized molecular dynamics (AMD). The double-folding model reproduces, with no adjustable parameter, the measured reaction cross sections for the scattering of $^{28-32}$Ne from $^{12}$C at 240MeV/nucleon. The quadrupole deformation thus determined is around 0.4 in the island-of-inversion region and $^{31}$Ne is a halo nuclei with large deformation. We propose the Woods-Saxon model with a suitably chosen parameterization set and the deformation given by the AMD calculation as a convenient way of simulating the density calculated directly by the AMD. The deformed Woods-Saxon model provides the density with the proper asymptotic form. The pairing effect is investigated, and the importance of the angular momentum projection for obtaining the large deformation in the island-of-inversion region is pointed out.
description: 19 pages, 16 figures, 6 tables
Bond formation between polymer filaments in fused deposition modeling process
Creators: name: Sun, Qian
Publisher: name: University of Calgary
Year: 2005

description: Bibliography: p. 107-121
description: This research investigates the bond formation among extruded acrylonitrile butadiene styrene filaments in the fused deposition modeling (FDM) process. This phenomenon is thermally driven and ultimately determines the integrity and mechanical properties of the resultant prototypes. The bond quality was assessed in terms of changes in the mesostructure and the degree of healing achieved at the interfaces between the adjoining polymer filaments. Experimental measurements of the temperature profiles were carried out for specimens produced under different processing conditions. The effects of processing conditions on the mesostructures and mechanical properties (flexural strength) were also examined. Our results showed that the fabrication strategy, the envelope temperature and variations in the convection coefficient have strong effects on the cooling temperature profile, as well as on the mesostructure and the bond strength achieved between filaments. Parallel to the experimental work, predictions of the degree of bonding achieved during the filament deposition process were made based on a thermal analysis of extruded polymer filaments. The bond development between filaments was modeled using a Newtonian sintering and a non-isothermal molecular diffusion models. The sintering phenomenon was found to have a significant effect on bond formation, but only for the very short duration when the filament's temperature is above the critical sintering temperature. Otherwise, creep deformation was found to dominate changes in the mesostructure. The non-isothermal molecular diffusion model predictions were found to be very sensitive to changes in the temperature and estimated values for the welding time. Further work on the thermal analysis as well as for obtaining the welding time is needed to give accurate predictions of the degree of healing and bond strength achieved between polymer filaments that constitute FDM parts.
Pericoma kabulica subsp. schumanni Jezek 1994
Creators: name: Tkoč, Michal
name: Pecharová, Martina
name: Ježek, Jan
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Pericoma
Pericoma kabulica
Pericoma kabulica schumanni ježek, 1994

description: Pericoma kabulica schumanni Ježek, 1994
(http://www.morphbank.net/?id=840063)
 Pericoma kabulica schumanni Ježek, 1994b: 32, Figs 1 –14.
Four paratypes are deposited in NMPC:
PARATYPE (J): ‘Uzbekist / an / Tien Shan Mts., / Chatkal’skii Khrebet, / Chimgan, 14.6.1988, / 3867 / Mey leg. [p] // Pericoma kabulica / schumanni Ježek, / 1994 / male / paratype / Cat. No. 33604 / 1994 [p, red label]’.
PARATYPE (J): ‘Uzbekist / an / Tien Shan Mts., / Chatkal’skii Khrebet, / Khudaidod, / 15.6.1988, / 3868 / Mey leg. [p] // Pericoma kabulica / schumanni Ježek, / 1994 / male / paratype / Cat. No. 33605 / 1994 [p, red label]’.
PARATYPE (J): ‘Kazakhst / an / Tien Shan Mts., / Khrebet Zailiiskii / Alatau, Kiikbai, / 4.6.1988, / 3869 / Mey leg. [p] // Pericoma kabulica / schumanni Ježek, / 1994 / male / paratype / Cat. No. 33606 / 1994 [p, red label]’.
PARATYPE (J): ‘Kazakhst / an / Tien Shan Mts., / Khrebet Zailiiskii / Alatau, Almaarasan, / 10.6.1988, / 3870 / Mey leg. [p] // Pericoma kabulica / schumanni Ježek, / 1994 / male / paratype / Cat. No. 33607 / 1994 [p, red label]’.
 Current status. Valid subspecies.
description: Published as part of Tkoč, Michal, Pecharová, Martina & Ježek, Jan, 2014, Catalogue of the type specimens of Diptera deposited in the Department of Entomology, National Museum, Prague, Czech Republic *, pp. 789-837 in Acta Entomologica Musei Nationalis Pragae 54 (2) on page 813, DOI: 10.5281/zenodo.5300543
MICROENCAPSULATED NUTRACEUTICAL PRODUCTS DEVELOPMENT AND MEDICINAL VALUES OF MORINGA STENOPETALA LEAVES EXTRACT
Creators: name: DEBEBE WORKU DADI
Publisher: name: Zenodo
Year: 2019

description: Bioactive compounds are secondary metabolites of the plant, which are produced to increase their overall ability to survive and withstand the harsh environment and resists to diseases. Moringa stenopetala plant contains bioactive compounds, which have antihypertensive, anti-inflammatory, antihyperglycemic and prevention of cancer. However, during food processing such as thermal processing, these bioactive compounds can to be destructed. Hence, encapsulation might be an alternative technology to maintain the functionality of the active compounds. Therefore, the aim of this research was to develop microencapsulated nutraceutical product from M. stenopetala leaves extract. The microencapsulation was done using spray and freeze-drying encapsulation techniques. In addition, maltodextrin (MD) and mixtures of maltodextrin and high methoxyl pectin (MDHP) were used as coating materials. Then, the physical and functional properties, encapsulation efficiency, bioactive contents and antioxidant activities of the microencapsulates were measured. Moreover, the storage stability and in vitro digestibility of the microencapsulated product was determined
Casimir-Polder interaction of fullerene molecules with surfaces
Creators: name: Buhmann, Stefan Yoshi
name: Scheel, Stefan
name: Ellingsen, Simen Å.
name: Hornberger, Klaus
name: Jacob, Andreas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We calculate the thermal Casimir--Polder potential of C60 and C70 fullerene molecules near gold and silicon nitride surfaces, motivated by their relevance for molecular matter wave interference experiments. We obtain the coefficients governing the asymptotic power laws of the interaction in the thermal, retarded and nonretarded distance regimes and evaluate the full potential numerically. The interaction is found to be dominated by electronic transitions, and hence independent of the internal temperature of the molecules. The contributions from phonon transitions, which are affected by the molecular temperature, give rise to only a small correction. Moreover, we find that the sizeable molecular line widths of thermal fullerenes may modify the nonretarded interaction, depending on the model used. Detailed measurements of the nonretarded potential of fullerene thus allow one to distinguish between different theories of incorporating damping.
description: 9 pages, 8 figures, 9 tables
Thermonuclear burst oscillations
Creators: name: Watts, Anna L.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Burst oscillations, a phenomenon observed in a significant fraction of Type I (thermonuclear) X-ray bursts, involve the development of highly asymmetric brightness patches in the burning surface layers of accreting neutron stars. Intrinsically interesting as nuclear phenomena, they are also important as probes of dense matter physics and the strong gravity, high magnetic field environment of the neutron star surface. Burst oscillation frequency is also used to measure stellar spin, and doubles the sample of rapidly rotating (above 10 Hz) accreting neutron stars with known spins. Although the mechanism remains mysterious, burst oscillation models must take into account thermonuclear flame spread, nuclear processes, rapid rotation, and the dynamical role of the magnetic field. This review provides a comprehensive summary of the observational properties of burst oscillations, an assessment of the status of the theoretical models that are being developed to explain them, and an overview of how they can be used to constrain neutron star properties such as spin, mass and radius.
description: Preprint of article submitted to Annual Reviews of Astronomy and Astrophysics (2012). 35 pages
Twisted sheaves and $\mathrm{SU}(r) / \mathbb{Z}_r$ Vafa-Witten theory
Creators: name: Jiang, Y.
name: Kool, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14D20, 14D21, 14J60, 14J81, 14F22

description: The $\mathrm{SU}(r)$ Vafa-Witten partition function, which virtually counts Higgs pairs on a projective surface $S$, was mathematically defined by Tanaka-Thomas. On the Langlands dual side, the first-named author recently introduced virtual counts of Higgs pairs on $μ_r$-gerbes. In this paper, we instead use Yoshioka's moduli spaces of twisted sheaves. Using Chern character twisted by rational $B$-field, we give a new mathematical definition of the $\mathrm{SU}(r) / \mathbb{Z}_r$ Vafa-Witten partition function when $r$ is prime. Our definition uses the period-index theorem of de Jong.
 $S$-duality, a concept from physics, predicts that the $\mathrm{SU}(r)$ and $\mathrm{SU}(r) / \mathbb{Z}_r$ partitions functions are related by a modular transformation. We turn this into a mathematical conjecture, which we prove for all $K3$ surfaces and prime numbers $r$.
description: 20 pages. Published version
YOSH TADBIRKORLARNI QO'LLAB-QUVVATLASH TIZIMINI TAKOMILLASHTIRISH
Creators: name: Toshkent tumani 1 - son kasb hunar maktabi iqtisod o'quvchisi Igamberdiyeva Sayyora
Publisher: name: Zenodo
Year: 2023

description: Yoshlarning tadbirkorlikka oid tashabbuslari, startap-loyihalari va amaliy tadqiqotlari natijalarini ro'yobga chiqarilishiga ko'maklashish, yosh tadbirkorlik subhektlarining sanoat va xizmat ko'rsatish sohalaridagi loyihalarini har tomonlama qo'llab-quvvatlash O'zbekiston Respublikasi milliy iqtisodiyotini rivojlantirishga asosiy yo'nalishlarning biriga aylanib ulgurdi. Yoshlar sanoat va tadbirkorlik zonalarini tashkil qilishdan quyidagi pirovard natijalarga erishish kutilmoqda: yoshlarga tadbirkorlik faoliyatini boshlashi va yuritishlari uchun Yoshlar sanoat zonalari hududida ishlab chiqarish maydonlari taqdim etish orqali ularni tadbirkorlik faoliyatiga keng jalb qilish; yoshlarga ularning sanoat va xizmat ko'rsatish yo'nalishidagi loyihalari, tashabbuslari va g'oyalari amalga oshirilishida ko'maklashish va qulay shartsharoitlar yaratish; "startaplar" tashkil etish maqsadida biznes-inkubator vazifalarini amalga oshirish, yosh tadbirkorlik subhektlarining faoliyatini barqaror rivojlantirish va raqobatbardoshligini oshirish; yoshlarga o'z innovatsion ishlanmalarini ishlab chiqarish jarayoniga joriy etish va natijalarini tijoratlashtirish, yirik sanoat korxonalari bilan kooperatsiya aloqalarini o'rnatish borasida amaliy yordam ko'rsatish; band bo'lmagan, shu jumladan «Yoshlar daftari»ga kiritilgan yoshlarni ish bilan tahminlash va ularning ijtimoiy-iqtisodiy faolligini oshirish hisoblanadi. 
Kalit so'zlari: Yoshlar, tadbirkorlik, mablag", moliyalashtirish, jamg'arma, loyiha, valyuta, kredit, maxsulot, ishlab chiqarish.
Virtual Segre and Verlinde numbers of projective surfaces
Creators: name: Göttsche, L.
name: Kool, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14D20, 14D21, 14J60, 14J80, 14J81

description: Recently, Marian-Oprea-Pandharipande established (a generalization of) Lehn's conjecture for Segre numbers associated to Hilbert schemes of points on surfaces. Extending work of Johnson, they provided a conjectural correspondence between Segre and Verlinde numbers. For surfaces with holomorphic 2-form, we propose conjectural generalizations of their results to moduli spaces of stable sheaves of any rank.
 Using Mochizuki's formula, we derive a universal function which expresses virtual Segre and Verlinde numbers of surfaces with holomorphic 2-form in terms of Seiberg-Witten invariants and intersection numbers on products of Hilbert schemes of points. We prove that certain canonical virtual Segre and Verlinde numbers of general type surfaces are topological invariants and we verify our conjectures in examples.
 The power series in our conjectures are algebraic functions, for which we find expressions in several cases and which are permuted under certain Galois actions. Our conjectures imply an algebraic analog of the Mariño-Moore conjecture for higher rank Donaldson invariants. For ranks $3$ and $4$, we obtain explicit expressions for Donaldson invariants in terms of Seiberg-Witten invariants.
description: Published version. 38 pages
Local Density of States and Interface Effects in Semimetallic ErAs Nanoparticles Embedded in GaAs
Creators: name: Kawasaki, Jason K.
name: Timm, Rainer
name: Delaney, Kris T.
name: Lundgren, Edvin
name: Mikkelsen, Anders
name: Palmstrøm, Chris J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The atomic and electronic structures of ErAs nanoparticles embedded within a GaAs matrix are examined via cross-sectional scanning tunneling microscopy and spectroscopy (XSTM/XSTS). The local density of states (LDOS) exhibits a finite minimum at the Fermi level demonstrating that the nanoparticles remain semimetallic despite the predictions of previous models of quantum confinement in ErAs. We also use XSTS to measure changes in the LDOS across the ErAs/GaAs interface and propose that the interface atomic structure results in electronic states that prevent the opening of a band gap.
description: 9 pages, 3 figure
Growth of Educational Institutions and its Impact on the Development of a Region
Creators: name: Boohene, David
name: Maxwell, Amita
Publisher: name: figshare
Year: 2023
Subjects: Urban and regional economics
Socio-economic development

description: The paper explores the circumlocutory and direct role that educational institutions have on their local regions specifically within five (5) km radius. According to Allision (2003) universities of higher learning goes beyond their core function of teaching and research to impact considerably on their local regions. Thus to identify the possibility of a replicable relationship between educational institutions on the development of the local region in Allahabad, a self-administered questionnaire of thirteen (13) items consisting of a five point likert scale was used to obtain data from two hundred and twenty three (223) respondents in and around two educational institutions. The respondents were made up of students, faculty and business owners around those colleges. Factor analysis was carried out after being satisfied with the internal consistency of the instrument. Regression analysis was used to ascertain the relationship between local region development and the presence of educational institutions. The researcher identified typical employment opportunities evolving around the local regions of educational institutions
Pericoma taurica Jezek 1990
Creators: name: Tkoč, Michal
name: Pecharová, Martina
name: Ježek, Jan
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Pericoma
Pericoma taurica

description: Pericoma taurica Ježek, 1990
(http://www.morphbank.net/?id=840064)
 Pericoma taurica Ježek, 1990a: 24, Figs 98–111.
The holotype and four paratypes are deposited in NMPC:
HOLOTYPE (J): ‘ TURKEY / ELAZIG, / river Murat / 30. VII. 1977 / Ježek lgt. / 2293 / Exp. Nat. Mus. / Praha [hw] // Pericoma / taurica / Ježek, 1990 / J / HOLOTYPUS / Cat. No. / 33473 / Ježek det. / 1988 [hw, red label]’.
PARATYPES (4 JJ): ‘ TURKEY / ELAZIG, / river Murat / 30. VII. 1977 / Ježek lgt. / 2294 [2294–2297] / Exp. Nat. Mus. / Praha [hw] // Pericoma / taurica / Ježek, 1990 / J / PARATYPUS / Cat. No. / 33474 [33474–33477] / Ježek det. / 1988 [hw, red label]’.
 Current status. Valid species.
description: Published as part of Tkoč, Michal, Pecharová, Martina & Ježek, Jan, 2014, Catalogue of the type specimens of Diptera deposited in the Department of Entomology, National Museum, Prague, Czech Republic *, pp. 789-837 in Acta Entomologica Musei Nationalis Pragae 54 (2) on page 813, DOI: 10.5281/zenodo.5300543
Replenishment planning and control in supply chain management
Creators: name: Suwanruji, Pattita
Publisher: name: University of Calgary
Year: 2004

description: Bibliography: p. 247-253
description: This research aims to gam insights into the effects of the supply chain factors on performance when using alternative replenishment strategies. The objectives include the development of guidelines to select appropriate strategies and to improve the performance when given a particular strategy. A simulation test bed has been developed to support this research. As well, a methodology based on the statistical analysis of inventory and delivery performance tradeoffs has been developed. This methodology allows main and interaction effects to be evaluated so that material and information flow behaviour can better be understood. The first experiments compare three replenishment strategies, namely Distribution Requirements Planning (DRP), Reorder Point (ROP), and KANBAN, within distribution channels with no capacity constraints. The supply chain factors studied include: supply I chain configuration, demand pattern, lot size, demand uncertainty and transit time uncertainty. A second study extends the research by analyzing the effects of capacity constraints, scrap and assembly processes within a network involving supply, manufacturing and distribution stages. Finally, a study to explore time-phased replenishment strategies (e.g. DRP/MRP) more fully is undertaken. In particular, the effectiveness of safety stock versus safety lead time to protect against variability and uncertainty under capacity constraints is examined. The results from scenarios without capacity constraints show that DRP is the most robust strategy, followed by ROP and KANBAN. Under seasonal demand, DRP always dominates. KANBAN yields inferior performance, especially under seasonal demand. The relative performances are not generally affected much by capacity constraints, scrap and assembly process. The exception is that under some level demand conditions, KANBAN can provide superior performance due to more consistent material flow to capacity-constrained resources. In time-phased strategies with capacity constraints, high demand uncertainty, seasonal demand, and use of some lot-sizing rules can increase replenishment times and induce supply timing uncertainty. The use of safety lead time is found preferable when supply timing uncertainty dominates demand uncertainty. Key Words: Supply Chain Management, Distribution Requirements Planning (DRP), Materials Requirements Planning (MRP), Reorder Point, KANBAN, Simulation.
Origin of the large polarization in multiferroic YMnO$_3$ thin films revealed by soft and hard x-ray diffraction
Creators: name: Wadati, H.
name: Okamoto, J.
name: Garganourakis, M.
name: Scagnoli, V.
name: Staub, U.
name: Yamasaki, Y.
name: Nakao, H.
name: Murakami, Y.
name: Mochizuki, M.
name: Nakamura, M.
name: Kawasaki, M.
name: Tokura, Y.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigated the magnetic structure of an orthorhombic YMnO3 thin film by resonant soft x-ray and hard x-ray diffraction. We observed a temperature-dependent incommensurate magnetic reflection below 45 K and a commensurate lattice-distortion reflection below 35 K. These results demonstrate that the ground state is composed of coexisting E-type and cycloidal states. Their different ordering temperatures clarify the origin of the large polarization to be caused by the E-type antiferromagnetic states in the orthorhombic YMnO3 thin film.
description: 4 pages, 6 figures
Pericoma tienshanensis Jezek 1994
Creators: name: Tkoč, Michal
name: Pecharová, Martina
name: Ježek, Jan
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Pericoma
Pericoma tienshanensis

description: Pericoma tienshanensis Ježek, 1994
(http://www.morphbank.net/?id=840065)
 Pericoma tienshanensis Ježek, 1994b: 34, Figs 15–28.
Seven paratypes are deposited in NMPC:
PARATYPE (J): ‘Kazakhst / an / Tien Shan Mts., / Khrebet Zailiiskii / Alatau, Kiikbai, / 4.6.1988, / 3871 / Mey leg. [p] // Pericoma / tienshanensis Ježek, / 1994 / male / paratype / Cat. No. 33608 / 1994 [p, red label]’.
PARATYPE (J): ‘Kazakhst / an / Tien Shan Mts., / Khrebet Zailiiskii / Alatau, env. Pik / Talgar, 7.6.1988, / 3872 / Mey leg. [p] // Pericoma / tienshanensis Ježek, / 1994 / male / paratype / Cat. No. 33609 / 1994 [p, red label]’.
PARATYPES (3 JJ): ‘Kazakhst / an / Tien Shan Mts., / Khrebet Zailiiskii / Alatau, env. Pik / Talgar, 8.6.1988, / 3873 [3873–3875] / Mey leg. [p] // Pericoma / tienshanensis Ježek, / 1994 / male / paratype / Cat. No. 33610 [33610–33612] / 1994 [p, red label]’.
PARATYPE (J): ‘Uzbekist / an / Tien Shan Mts., / Chatkal’skii Khrebet, / Chimgan, 13.6.1988, / 3876 / Mey leg. [p] // Pericoma / tienshanensis Ježek, / 1994 / male / paratype / Cat. No. 33613 / 1994 [p, red label]’.
PARATYPE (J): ‘Uzbekist / an / Tien Shan Mts., / Chatkal’skii Khrebet, / Chimgan, 14.6.1988, / 3877 / Mey leg. [p] // Pericoma / tienshanensis Ježek, / 1994 / male / paratype / Cat. No. 33614 / 1994 [p, red label]’.
 Current status. Valid species.
description: Published as part of Tkoč, Michal, Pecharová, Martina & Ježek, Jan, 2014, Catalogue of the type specimens of Diptera deposited in the Department of Entomology, National Museum, Prague, Czech Republic *, pp. 789-837 in Acta Entomologica Musei Nationalis Pragae 54 (2) on page 813, DOI: 10.5281/zenodo.5300543
Sheaves on surfaces and virtual invariants
Creators: name: Göttsche, L.
name: Kool, M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 14D20, 14D21, 14J60, 14J80, 14J81

description: Moduli spaces of stable sheaves on smooth projective surfaces are in general singular. Nonetheless, they carry a virtual class, which -- in analogy with the classical case of Hilbert schemes of points -- can be used to define intersection numbers, such as virtual Euler characteristics, Verlinde numbers, and Segre numbers. We survey a set of recent conjectures by the authors for these numbers with applications to Vafa-Witten theory, $K$-theoretic S-duality, a rank 2 Dijkgraaf-Moore-Verlinde-Verlinde formula, and a virtual Segre-Verlinde correspondence. A key role is played by Mochizuki's formula for descendent Donaldson invariants.
description: 40 pages. Published version
Coulombic effects on magnetoconductivity oscillations induced by microwave excitation in multisubband two-dimensional electron systems
Creators: name: Monarkha, Yuriy P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We develop a theory of magneto-oscillations in photoconductivity of multisubband two-dimensional electron systems which takes into account strong Coulomb interaction between electrons. In the presence of a magnetic field oriented perpendicular, internal electric fields of fluctuational origin cause fast drift velocities of electron orbit centers which affect probabilities of inter-subband scattering and the photoconductivity. For the electron system formed on the liquid helium surface, internal forces are shown to suppress the amplitude of magneto-oscillations, and change positions of magnetoconductivity minima which evolve in zero-resistance states for high radiation power.
description: 9 pages, 6 figures
Peripsychoda iranica Jezek 1987
Creators: name: Tkoč, Michal
name: Pecharová, Martina
name: Ježek, Jan
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Peripsychoda
Peripsychoda iranica

description: Peripsychoda iranica Ježek, 1987
(http://www.morphbank.net/?id=840066)
 Peripsychoda iranica Ježek, 1987d: 191, Figs 1 –17.
The holotype and two paratypes are deposited in NMPC:
HOLOTYPE (J): ‘ ÍRÁN / Mazandaran, N. / Iran, Golestan / forest – Maharli / 19.–21. 6. 1977 / Ježek lgt. / 695 / 20 km N. W. of / Dasht / Loc. No. 376, / 37 22 N, 55 51 E / 530 m [hw] // Peripsychoda / iranica / Ježek, 1987 / J / HOLOTYPUS / Cat. No. / 32981 / Ježek det. / 1984 [hw, red label]’.
PARATYPES (2 JJ): ‘ ÍRÁN / Mazandaran, N. / Iran, Golestan / forest – Maharli / 19.–21. 6. 1977 / Ježek lgt. / 696 [696–697] / 20 km N. W. of / Dasht / Loc. No. 376, / 37 22 N, 55 51 E / 530 m [hw] // Peripsychoda / iranica / Ježek, 1987 / J / PARATYPUS / Cat. No. / 32982 [32982–32983] / Ježek det. / 1984 [hw, red label]’.
 Current status. Valid species.
description: Published as part of Tkoč, Michal, Pecharová, Martina & Ježek, Jan, 2014, Catalogue of the type specimens of Diptera deposited in the Department of Entomology, National Museum, Prague, Czech Republic *, pp. 789-837 in Acta Entomologica Musei Nationalis Pragae 54 (2) on page 814, DOI: 10.5281/zenodo.5300543
Investigation of electronic trap states in organic photovoltaic materials by current-based deep level transient spectroscopy
Creators: name: Neugebauer, Stefan
name: Rauh, Julia
name: Deibel, Carsten
name: Dyakonov, Vladimir
Publisher: name: arXiv
Year: 2012
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Current-based deep level transient spectroscopy was used to study trap states in poly(3- hexylthiophene-2,5-diyl) (P3HT), [6,6]-phenyl-C61 butyric acid methyl ester (PCBM) and P3HT:PCBM blend. The obtained spectra showed traps of 87 meV activation energy in pure P3HT and 21 meV for PCBM. The blend shows a complex emission rate spectrum consisting of several different emission rate bands in the range of (0.1-30) s^-1, yielding activation energies between about 30 meV and 160 meV.
description: 4 pages, 3 figures
Seshadri constants on principally polarized abelian surfaces with real multiplication
Creators: name: Bauer, Thomas
name: Schmidt, Maximilian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14C20, 14K12, 26A30

description: Seshadri constants on abelian surfaces are fully understood in the case of Picard number one. Little is known so far for simple abelian surfaces of higher Picard number. In this paper we investigate principally polarized abelian surfaces with real multiplication. They are of Picard number two and might be considered the next natural case to be studied. The challenge is to not only determine the Seshadri constants of individual line bundles, but to understand the whole \emph{Seshadri function} on these surfaces. Our results show on the one hand that this function is surprisingly complex: On surfaces with real multiplication in $\mathbb Z[\sqrt e]$ it consists of linear segments that are never adjacent to each other -- it behaves like the Cantor function. On the other hand, we prove that the Seshadri function it is invariant under an infinite group of automorphisms, which shows that it does have interesting regular behavior globally.
A variational Bayesian method for inverse problems with impulsive noise
Creators: name: Jin, Bangti
Publisher: name: arXiv
Year: 2011
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: We propose a novel numerical method for solving inverse problems subject to impulsive noises which possibly contain a large number of outliers. The approach is of Bayesian type, and it exploits a heavy-tailed t distribution for data noise to achieve robustness with respect to outliers. A hierarchical model with all hyper-parameters automatically determined from the given data is described. An algorithm of variational type by minimizing the Kullback-Leibler divergence between the true posteriori distribution and a separable approximation is developed. The numerical method is illustrated on several one- and two-dimensional linear and nonlinear inverse problems arising from heat conduction, including estimating boundary temperature, heat flux and heat transfer coefficient. The results show its robustness to outliers and the fast and steady convergence of the algorithm.
description: 20 pages, to appear in J. Comput. Phys
HOW A POLITICAL LEADER SHOULD BE:TRAITS AND RESPONSIBILITIES
Creators: name: Written by Yuldashev Sunnatulla  majoring in political science Junior student at the National University of Uzbekistan
Publisher: name: Zenodo
Year: 2023

description: Political leaders hold a crucial role in shaping the course of a nation and its people.The demands placed on them are immense,as they are assigned with making practical decisions that definitely impact millions of lives.In this article, I will explore the qualities and responsibilities that define a truly effective political leader.
Key qualities of a political leader:
Peripsychoda zbytka Jezek 2004
Creators: name: Tkoč, Michal
name: Pecharová, Martina
name: Ježek, Jan
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Psychodidae
Peripsychoda
Peripsychoda zbytka

description: Peripsychoda zbytka Ježek, 2004
(http://www.morphbank.net/?id=840067)
 Peripsychoda zbytka Ježek, 2004b: 114, Figs 1 –15.
The holotype is deposited in NMPC:
 HOLOTYPE (J): ‘Czech / Republic / Bohemia or., wildlife / reserve Zbytka / between Pohoří and / České Meziříčí (5762) / 15.vii. 2002, Ježek / leg., sweeping / 12317 / 260 m a. s. l., / complex of floodplains / and fen meadows in / the meander of Zlatý / potok brook [p] // Peripsychoda zbytka / Ježek, 2004 / male / HOLOTYPE / Cat. No. 34242 / J. Ježek det. / 2004 [p, red label]’.
 Current status. Valid species.
description: Published as part of Tkoč, Michal, Pecharová, Martina & Ježek, Jan, 2014, Catalogue of the type specimens of Diptera deposited in the Department of Entomology, National Museum, Prague, Czech Republic *, pp. 789-837 in Acta Entomologica Musei Nationalis Pragae 54 (2) on page 814, DOI: 10.5281/zenodo.5300543