cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Connected door spaces and topological solutions of equations
Creators: name: Wu, Jianfeng
name: Wang, Chunli
name: Zhang, Dong
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Topology (math.GN)
subject: FOS: Mathematics
subject: 39B05, 39B52, 54H99

description: The connected door space is an enigmatic topological space in which every proper nonempty subset is either open or closed, but not both. This paper provides an elementary proof of the classification theorem of connected door spaces. More importantly, we show that connected door topologies can be viewed as solutions of the valuation $f(A)+f(B)=f(A\cup B)+f(A\cap B)$ and the equation $f(A)+f(B)=f(A\cup B)$, respectively. In addition, some special solutions, which can be regarded as a union of connected door spaces, are provided.
description: A small gap in the proof of Theorem 3 in the published version has been corrected
Projekt VIRTIGATION Poster (DE)
Creators: name: RTDS Group
name: LNW
Publisher: name: Zenodo
Year: 2022

description: Dieses Poster wurde von der RTDS Group und LNW als Partner des H2020-Projekts VIRTIGATION – Neu auftretende Viruskrankheiten an Tomaten und Kürbisgewächsen: Umsetzung von Minderungsstrategien für ein dauerhaftes Krankheitsmanagement erstellt.

Dieses Projekt wurde vom Forschungs- und Innovationsprogramm Horizon 2020 der Europäischen Union unter der GA Nr. 101000570 finanziert.
Charge Transport in Manganites: Hopping Conduction, the Anomalous Hall Effect and Universal Scaling
Creators: name: Lyanda-Geller, Y.
name: Chun, S. H.
name: Salamon, M. B.
name: Goldbart, P. M.
name: Han, P. D.
name: Tomioka, Y.
name: Asamitsu, A.
name: Tokura, Y.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The low-temperature Hall resistivity ρ_{xy} of La_{2/3}A_{1/3}MnO_3 single crystals (where A stands for Ca, Pb and Ca, or Sr) can be separated into Ordinary and Anomalous contributions, giving rise to Ordinary and Anomalous Hall effects, respectively. However, no such decomposition is possible near the Curie temperature which, in these systems, is close to metal-to-insulator transition. Rather, for all of these compounds and to a good approximation, the ρ_{xy} data at various temperatures and magnetic fields collapse (up to an overall scale), on to a single function of the reduced magnetization m=M/M_{sat}, the extremum of this function lying at m~0.4. A new mechanism for the Anomalous Hall Effect in the inelastic hopping regime, which reproduces these scaling curves, is identified. This mechanism, which is an extension of Holstein's model for the Ordinary Hall effect in the hopping regime, arises from the combined effects of the double-exchange-induced quantal phase in triads of Mn ions and spin-orbit interactions. We identify processes that lead to the Anomalous Hall Effect for localized carriers and, along the way, analyze issues of quantum interference in the presence of phonon-assisted hopping. Our results suggest that, near the ferromagnet-to-paramagnet transition, it is appropriate to describe transport in manganites in terms of carrier hopping between states that are localized due to combined effect of magnetic and non-magnetic disorder. We attribute the qualitative variations in resistivity characteristics across manganite compounds to the differing strengths of their carrier self-trapping, and conclude that both disorder-induced localization and self-trapping effects are important for transport.
description: 29 pages, 20 figures
Sankey Network Diagrams to Depict Bulk Power Transactions for Operator Situational Awareness
Creators: name: Cuffe, Paul
name: Beiranvand, Arash
Publisher: name: figshare
Year: 2021
Subjects: subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Manuscript and video presentation for this contribution to IEEE PowerTech 2021
Andrena (Euandrena) amieti Praz, Muller & Genoud 2019
Creators: name: Risch, Stephan
name: Roberts, Stuart P. M.
name: Smit, Jan
name: Wood, Thomas J.
name: Michez, Denis
name: Reverté, Sara
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena amieti

description: Andrena (Euandrena) amieti Praz, M ̧ller & Genoud, 2019
 Andrena (Euandrena) amieti Praz, Müller & Genoud, 2019: 20. Holotype ♀; Switzerland: Bernese Oberland: Oeschinensee (MHNN).
 Distribution. France, Switzerland, Germany, Italy, Austria.
description: Published as part of Risch, Stephan, Roberts, Stuart P. M., Smit, Jan, Wood, Thomas J., Michez, Denis & Reverté, Sara, 2023, The new annotated checklist of the wild bees of Europe (Hymenoptera: Anthophila), pp. 1-147 in Zootaxa 5327 (1) on page 10, DOI: 10.11646/zootaxa.5327.1.1, http://zenodo.org/record/8244373
Unified low-energy effective Hamiltonian and the band topology of $p$-block square-net layer derivatives
Creators: name: Hyun, S. I.
name: Lee, Inho
name: Lee, Geunsik
name: Shim, J. H.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: In recent years, low-dimensional materials with tetragonal $P4/nmm$ (orthorhombic $Pnma$) space group having square-net (chain-like) substructure of $p$-block elements have been studied extensively. By using a first-principles calculation and a two-sites $\otimes$ two-orbitals tight-binding model, we construct the unified low-energy effective Hamiltonian and the $\mathbb{Z}_{2}$ topological phase diagram for such materials with different filling factors. Near the chemical potential, we show that the staggered arrangement of ions at 2c (4c) site yields the virtual hopping that have the same form with the second nearest-neighbor hopping between the square-net (chain-like) ions. We show that this hybridization and low-symmetry of the chain-like structure protects the quantum spin Hall insulator phase. Finally, the second order spin-orbit coupling on top of the atomic spin-orbit coupling is considered to clarify the origin of the non-zero Berry phase signals reported in recent quantum oscillation experiments.
Additional file 1 of Comparative physiological and transcriptomic analysis reveal MdWRKY75 associated with sucrose accumulation in postharvest ‘Honeycrisp’ apples with bitter pit
Creators: name: Sun, Chen
name: Zhang, Weiwei
name: Qu, Haiyong
name: Yan, Longfei
name: Li, Lixia
name: Zhao, Yuqi
name: Yang, Hongqiang
name: Zhang, Hua
name: Yao, Gaifang
name: Hu, Kangdi
Publisher: name: figshare
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified

description: Additional file 1.
Collective Effects: the viewpoint of HEP MC codes
Creators: name: Sjöstrand, Torbjörn
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Collective effects are observed in high-multiplicity pp events, similar to the signals traditionally attributed to the formation of a Quark Gluon Plasma in heavy ion collisions. In core--corona models it is assumed that a partial plasma formation is indeed possible also in pp, but here the focus is on several recent models that attempt to explain pp data without invoking plasma formation. These attempts are partly successful, but there is still not a unified framework.
description: 8 pages, presented at XXVIIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2018)
Tests of Perturbative QCD and Jet Physics
Creators: name: Womersley, John
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: I describe the current status of tests of perturbative QCD, using measurements of jet, photon, weak boson and heavy flavor production from the Tevatron, LEP and HERA. Measurements of the strong coupling constant are described, and I conclude with a "wish list" for the future.
description: To appear in the Proceedings of the XIX International Symposium on Lepton and Photon Interactions at High Energies (LP99), Stanford University, August 1999 Replaced version corrects Ref [31] and adds an additional plot to Fig.21
Kilonova emission from black hole-neutron star mergers: observational signatures of anisotropic mass ejection
Creators: name: Huang, Zhi-Qiu
name: Liu, Liang-Duan
name: Wang, Xiang-Yu
name: Dai, Zi-Gao
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The gravitational wave event GW170817 associated with the short gamma-ray burst (GRB) 170817A confirms that binary neutron star (BNS) mergers are one of the origins of short GRBs. The associated kilonova emission, radioactively powered by nucleosynthesized heavy elements, was also detected. Black hole-neutron star (BH-NS) mergers have been argued to be another promising origin candidate of short GRBs and kilonovae. Numerical simulations show that the ejecta in BH-NS mergers is geometrically much more anisotropic than the BNS merger case. In this paper, we investigate observational signatures of kilonova emission from the anisotropic ejecta in BH-NS mergers. We find that a bump appears on the bolometric luminosity light curve due to the inhomogeneous mass distribution in the latitudinal direction. The decay slope of the single-band light curve becomes flatter and the spectrum also deviates from a single-temperature blackbody radiation spectrum due to the gradient in the velocity distribution of the ejecta. Future detection or non-detection of such signatures would be useful to test the mass ejection geometry in BH-NS mergers.
description: Accepted by ApJ, 7 pages, 7 figures
Andrena (Taeniandrena) antonellae Praz & Genoud 2022
Creators: name: Risch, Stephan
name: Roberts, Stuart P. M.
name: Smit, Jan
name: Wood, Thomas J.
name: Michez, Denis
name: Reverté, Sara
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena antonellae

description: Andrena (Taeniandrena) antonellae Praz & Genoud, 2022
 Andrena (Taeniandrena) antonellae Praz & Genoud in Praz et al., 2022: 390. Holotype ♀; Italy: Sardinia, Buggerru, Cala Domestica (PRUN).
 Distribution. France (Corsica) and Italy (Sardinia).
description: Published as part of Risch, Stephan, Roberts, Stuart P. M., Smit, Jan, Wood, Thomas J., Michez, Denis & Reverté, Sara, 2023, The new annotated checklist of the wild bees of Europe (Hymenoptera: Anthophila), pp. 1-147 in Zootaxa 5327 (1) on pages 10-11, DOI: 10.11646/zootaxa.5327.1.1, http://zenodo.org/record/8244373
First Massive State of the Superstring in Superspace
Creators: name: Berkovits, N.
name: Leite, M. M.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the manifestly spacetime supersymmetric description of the four-dimensional open superstring, we construct the vertex operator in superspace for the first massive state. This construction provides an N=1 D=4 superspace representation of the massive spin-2 multiplet.
description: 7 pages latex
Hydrogenoid spectra with central perturbations
Creators: name: Gallone, Matteo
name: Michelangeli, Alessandro
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Through the Kre\uın-Višik-Birman extension scheme, unlike the classical analysis based on von Neumann's theory, we reproduce the construction and classification of all self-adjoint realisations of three-dimensional hydrogenoid-like Hamiltonians with singular perturbation supported at the Coulomb centre (the nucleus), as well as of Schrödinger operators with Coulomb potentials on the half-line. These two problems are technically equivalent, albeit sometimes treated by their own in the the literature. Based on such scheme, we then recover the formula to determine the eigenvalues of each self-adjoint extension, as corrections of the non-relativistic hydrogenoid energy levels. We discuss in which respect the Kre\uın-Višik-Birman scheme is somewhat more natural in yielding the typical boundary condition of self-adjointness at the centre of the perturbation.
description: 24 pages, 4 figures
Accelerator and Reactor Neutrino Experiments
Creators: name: DiLella, L.
Publisher: name: arXiv
Year: 1999
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Present results from neutrino experiments at accelerators and nuclear reactors are reviewed with emphasis on neutrino oscillation searches. Future prospects in this field are also discussed.
description: Review presented at LP99
ДЕЙСТВИЕ ИМПУЛЬСНОЙ ЧАСТОТЫ ЛАЗЕРНОГО ИЗЛУЧЕНИЯ НА ДРОЖЖИ ВЕРХОВОГО БРОЖЕНИЯ
Creators: name: ШАБУРОВА ЛЮБОВЬ НИКОЛАЕВНА
name: ДАНИЛОВА АННА НИКОЛАЕВНА
name: ПОНОМАРЕВА МАРИЯ СЕРГЕЕВНА
name: ГЕРНЕТ МАРИНА ВАСИЛЬЕВНА
Publisher: name: Пиво и напитки
Year: 2019
Subjects: ДРОЖЖИ
ИЗЛУЧЕНИЕ
ИМПУЛЬСНАЯ ЧАСТОТА
ЛАЗЕР

description: Важное направление развития пивоваренной промышленности заключается в интенсификации технологических процессов и повышении качества готовой продукции. Качество пива зависит от биотехнологических процессов, происходящих при сбраживании сусла c помощью дрожжей. Активность ферментов в дрожжевой клетке зависит от многих условий, которые изменяются в процессе роста, размножения и развития клетки. Воздействие лазерного излучения на живые биологические объекты чрезвычайно разнообразно (вызывает как ингибирующие, так и стимулирующие эффекты). Цель исследования - изучение влияния лазерного излучения в инфракрасном диапазоне на пивные дрожжи верхового брожения для интенсификации процессов брожения. В ходе ранних экспериментов было определено оптимальное время обработки дрожжевой суспензии, при воздействии в течение 2 мин результат был оптимальным. При сбраживании 12 % пивного сусла и дображивании контролировали следующие показатели: видимый экстракт, рН, степень сбраживания, флокуляционную способность дрожжей, накопление диацетила в пиве. В ходе исследований выявили, что при обработке лазером увеличивается содержание клеток c гликогеном и снижается количество нежизнеспособных клеток. Было изучено воздействие различных частот лазера на процесс сбраживания пивного сусла. Малые частоты лазера благоприятно воздействуют на физиологическое состояние дрожжевой клетки, уменьшая количество мертвых клеток, стимулируя процессы размножения дрожжей и брожения. Исследования показали, что воздействие правильно подобранного режима излучения, в данном эксперименте импульсная частота, низкоинтенсивного лазерного излучения обычно не вызывает явных биосинтетических и энергетических процессов дрожжевой клетки.
Numerical Toy-Model Calculation of the Nucleon Spin Autocorrelation Function in a Supernova Core
Creators: name: Raffelt, Georg
name: Sigl, Guenter
Publisher: name: arXiv
Year: 1998
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We develop a simple model for the evolution of a nucleon spin in a hot and dense nuclear medium. A given nucleon is limited to one-dimensional motion in a distribution of external, spin-dependent scattering potentials. We calculate the nucleon spin autocorrelation function numerically for a variety of potential densities and distributions which are meant to bracket realistic conditions in a supernova core. For all plausible configurations the width of the spin-density structure function is found to be less than the temperature. This is in contrast with a naive perturbative calculation based on the one-pion exchange potential which overestimates the width and thus suggests a large suppression of the neutrino opacities by nucleon spin fluctuations. Our results suggest that it may be justified to neglect the collisional broadening of the spin-density structure function for the purpose of estimating the neutrino opacities in the deep inner core of a supernova. On the other hand, we find no indication that processes such as axion or neutrino pair emission, which depend on nucleon spin fluctuations, are substantially suppressed beyond the multiple-scattering effect already discussed in the literature. Aside from these practical conclusions, our model reveals a number of interesting and unexpected insights. For example, the spin-relaxation rate saturates with increasing potential strength only if bound states are not allowed to form by including a repulsive core. There is no saturation with increasing density of scattering potentials until localized eigenstates of energy begin to form.
description: 14 latex pages in two-column format, 15 postscript figures included, uses revtex.sty and epsf.sty. Submitted to Physical Review D
ТЕХНОЛОГИЧЕСКИЕ РЕЖИМЫ ОБРАБОТКИ ВИНОГРАДНЫХ ВИН ПРЕПАРАТАМИ НА ОСНОВЕ ПВПП
Creators: name: ПАНАСЮК АЛЕКСАНДР ЛЬВОВИЧ
name: КУЗЬМИНА ЕЛЕНА ИВАНОВНА
name: ЕГОРОВА ОЛЕСЯ СЕРГЕЕВНА
Publisher: name: Пиво и напитки
Year: 2019
Subjects: ВИНОГРАДНОЕ ВИНО
ОКИСЛЕНИЕ ВИН
ПОКАЗАТЕЛИ ЦВЕТНОСТИ
ФЕНОЛЬНЫЕ ВЕЩЕСТВА
ПОЛИФЕНОЛЬНЫЕ ПОМУТНЕНИЯ
ПОЛИВИНИЛПОЛИПИРРОЛИДОН

description: В статье приведены результаты исследований эффективности обработки виноградных вин препаратами нового поколения на основе поливинилполипирролидона (ПВПП) с целью удаления окисленных форм полифенолов. Опытные образцы окисленных белых и розовых виноградных вин обрабатывали препаратами нового поколения на основе ПВПП (Поликлар 10, Поликлар В, Поликлар ВТ). Методом математической статистики была разработана схема проведения эксперимента, в результате которой для каждого из трех исследуемых препаратов были подобраны дозы, температура и продолжительность обработки вина. В контрольных и опытных образцах вин определяли показатели оптической плотности, массовую концентрацию полифенолов, показатели цветности. Результаты исследований показали, что обработка окисленных виноградных вин препаратами на основе ПВПП способствует снижению содержания конденсированных форм фенольных веществ. По полученным данным для каждого из трех исследуемых препаратов была построена трехфакторная квадратичная регрессионная модель зависимости содержания фенольных веществ от дозы препарата, температуры и времени экспозиции. Результатом регрессионного анализа стали уравнения, связывающие содержание фенольных веществ в продукте со временем, температурой и дозами вводимых препаратов. С помощью полученных уравнений на основании построенных регрессионных моделей были рассчитаны рекомендуемые режимы дозировки и времени экспозиции препаратов при температуре 12 °С. Рассчитаны оптимальные дозы препаратов для температуры обработки 12 и 20 °С, а также времени обработки 5, 30 и 60 мин. Установлено, что анализ экспериментальных данных методами математической статистики позволяет подобрать оптимальные режимы обработки вин в зависимости от физико-химических показателей конкретного вина, а также возможностей конкретного производства.
Model Reduction Method based on Rational Canonical Form of System Matrix and Krylov Subspace: A Scientific Explanation
Creators: name: Zunhai Gao
name: Chen, Zhuo
Publisher: name: Zenodo
Year: 2021
Subjects: System matrix
Krylov subspace
model reduction method
rational canonical form

description: For single input and single output time-invariant linear system, a new projection method to obtain reduced models is presented by making use of the rational canonical form of system matrix and the Krylov subspace. At first, the system matrix is transformed to its rational canonical form by use of linear transformation. And then both projection method and Krylov subspace method are used to reduce model. The advantage of this method is the poles of the reduced system are same as those of the original. Thus the reduced system remains the stability when the original system is. This method is more effective than simple Krylov subspace method. Simulation results are show to verify the validity and feasibility of the methods. Numerical examples demonstrate the effectiveness of the method.
Andrena (Lepidandrena) baetica Wood 2020
Creators: name: Risch, Stephan
name: Roberts, Stuart P. M.
name: Smit, Jan
name: Wood, Thomas J.
name: Michez, Denis
name: Reverté, Sara
Publisher: name: Zenodo
Year: 2023
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hymenoptera
Andrenidae
Andrena
Andrena baetica

description: Andrena (Lepidandrena) baetica Wood, 2020
 Andrena (Lepidandrena) baetica Wood in Wood et al., 2020a: 202. Holotype ♀; Portugal: Alto Alentejo, Portalegre, Vaiamonte (OÖLM).
 Distribution. Portugal, Spain.
description: Published as part of Risch, Stephan, Roberts, Stuart P. M., Smit, Jan, Wood, Thomas J., Michez, Denis & Reverté, Sara, 2023, The new annotated checklist of the wild bees of Europe (Hymenoptera: Anthophila), pp. 1-147 in Zootaxa 5327 (1) on page 11, DOI: 10.11646/zootaxa.5327.1.1, http://zenodo.org/record/8244373
Activation of GRP78 ATPase suppresses A549 lung cancer cell migration by promoting ITGB4 degradation
Creators: name: Ning, Junya
name: Cui, Xiaoling
name: Li, Nan
name: Li, Na
name: Zhao, Baoxiang
name: Miao, Junying
name: Lin, Zhaomin
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Cancer

description: Hypochlorous acid (HOCl) is an essential signal molecule in cancer cells. Activated GRP78 ATPase by a HOCl probe named ZBM-H inhibits lung cancer cell growth. However, the role and underlying mechanism of GRP78 ATPase in lung cancer cell migration have not been established. Here, we reported that activation of GRP78 ATPase by ZBM-H suppressed A549 cell migration and inhibited EMT process. Notably, ZBM-H time-dependently decreased the protein level of integrin β4 (ITGB4) in A549 cells. Combinatorial treatment of 3BDO (an autophagy inhibitor) and ZBM-H partially rescued the protein level of ITGB4. Consistently, 3BDO partially reversed ZBM-H-inhibited cell migration. Furthermore, ZBM-H promoted the interaction between ANXA7 and Hsc70, which participated in the regulation of selective autophagy and degradation of ITGB4.
Directed Continuous-Time Random Walk with memory
Creators: name: Klamut, Jarosław
name: Gubiec, Tomasz
Publisher: name: arXiv
Year: 2018
Subjects: subject: Statistical Finance (q-fin.ST)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Economics and business
subject: FOS: Physical sciences

description: We propose a new Directed Continuous-Time Random Walk (CTRW) model with memory. As CTRW trajectory consists of spatial jumps preceded by waiting times, in Directed CTRW, we consider the case with only positive spatial jumps. Moreover, we consider the memory in the model as each spatial jump depends on the previous one. Our model is motivated by the financial application of the CTRW presented in [Phys. Rev. E 82:046119][Eur. Phys. J. B 90:50]. As CTRW can successfully describe the short term negative autocorrelation of returns in high-frequency financial data (caused by the bid-ask bounce phenomena), we asked ourselves to what extent the observed long-term autocorrelation of absolute values of returns can be explained by the same phenomena. It turned out that the bid-ask bounce can be responsible only for the small fraction of the memory observed in the high-frequency financial data.
Testing Broken U(1) Symmetry in a Two-Component Atomic Bose-Einstein Condensate
Creators: name: Search, C. P.
name: Berman, P. R.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a scheme for determining if the quantum state of a small trapped Bose-Einstein condensate is a state with well defined number of atoms, a Fock state, or a state with a broken U(1) gauge symmetry, a coherent state. The proposal is based on the observation of Ramsey fringes. The population difference observed in a Ramsey fringe experiment will exhibit collapse and revivals due to the mean-field interactions. The collapse and revival times depend on the relative strength of the mean-field interactions for the two components and the initial quantum state of the condensate.
description: 20 Pages RevTex, 3 Figures
Simulation of surfactant transport during the rheological relaxation of two-dimensional dry foams
Creators: name: Zaccagnino, F.
name: Audebert, A.
name: Cox, S. J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We describe a numerical model to predict the rheology of two-dimensional dry foams. The model accurately describes soap film curvature, viscous friction with the walls, and includes the transport of surfactant within the films and across the vertices where films meet. It accommodates the changes in foam topology that occur when a foam flows and, in particular, accurately represents the relaxation of the foam following a topological change. The model is validated against experimental data, allowing the prediction of elastic and viscous parameters associated with different surfactant solutions.
ФАКТОРЫ, ОПРЕДЕЛЯЮЩИЕ УСТАНАВЛИВАЕМЫЙ СРОК ГОДНОСТИ БЕЗАЛКОГОЛЬНЫХ НАПИТКОВ
Creators: name: КОВАЛЕВА ИРИНА ЛЬВОВНА
name: СОБОЛЕВА ОЛЬГА АЛЕКСАНДРОВНА
name: СЕВОСТЬЯНОВА ЕЛЕНА МИХАЙЛОВНА
Publisher: name: Пиво и напитки
Year: 2019
Subjects: АНТИОКСИДАНТ
БЕЗАЛКОГОЛЬНЫЙ НАПИТОК
ПАСТЕРИЗАЦИЯ
ПИЩЕВОЙ КОНСЕРВАНТ
СОСТАВ
СРОК ГОДНОСТИ
УПАКОВКА
ЦВЕТ

description: Статья посвящена установлению срока годности вновь разрабатываемых безалкогольных напитков. На срок годности пищевых продуктов оказывает влияние множество факторов. Одним из основных служит состав разрабатываемого продукта. Начальный фактор заключается в качестве сырья и условиях его хранения. Наибольший риск имеют ингредиенты растительного происхождения. Эфирные масла и терпены цитрусовых соков и экстрактов обладают высокой реакционной способностью и подвержены окислению. При использовании в составе безалкогольного напитка таких компонентов рекомендуется предварительно подвергнуть их детерпенизации. Компоненты с удаленной терпеновой фракцией обладают большей стабильностью. Углеводы и пектины, входящие в состав соков, также могут способствовать порче напитка. В состав некоторых напитков включают витаминные премиксы. На стабильность витаминов влияют температура, свет, величина рН, наличие кислорода, присутствие ионов металлов. Необходимо учитывать сочетаемость витаминов, возможное негативное влияние одних витаминов на другие. При указании содержания витаминов на этикетке срок годности определяют по наиболее нестабильному компоненту. Важно включать в состав напитка компоненты, обладающие антиоксидантной активностью. К ним относят аскорбиновую кислоту, витамин Е, каротин, селен, растительные фенолы. Антиоксидантной активностью обладают некоторые виды растительного сырья. Дигидрокверцитин - перспективный ингредиент при создании напитков, он не только проявляет биологически активные свойства, но и служит мощным антиоксидантом. Натуральные красители подвержены воздействию света, тепла, кислорода. Они наиболее стабильны при значении рН в диапазоне 2,7-3,7. На срок годности продукта отрицательное влияние оказывает кислород. В связи с этим необходимо подбирать упаковочный материал, непроницаемый для кислорода, а также минимизировать его попадание в продукт при розливе. Известно, что газированные напитки более стабильны, так как СО2 обладает определенным консервирующим эффектом. При выборе температурного режима хранения следует учитывать закон Аррениуса. Увеличить срок годности напитка позволяет применение пищевых консервантов или пастеризации. Длительная температурная обработка способствует частичной потере вкуса и аромата. Для увеличения срока годности чайных напитков следует применять асептическую упаковку и пастеризацию. Значение рН при этом не должно превышать 4,0. Сорбиновая и бензойная кислоты и их соли в таких продуктах не эффективны. Таким образом, для обеспечения качества и стабильности безалкогольного напитка в течение устанавливаемого срока годности необходимо своевременно выявлять, управлять и контролировать все факторы рисков.
Disorder-Driven Pretransitional Tweed in Martensitic Transformations
Creators: name: Kartha, Sivan
name: Krumhansl, James
name: Sethna, James
name: Wickham, Lisa
Publisher: name: arXiv
Year: 1995
Subjects: subject: Condensed Matter (cond-mat)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Defying the conventional wisdom regarding first--order transitions, {\it solid--solid displacive transformations} are often accompanied by pronounced pretransitional phenomena. Generally, these phenomena are indicative of some mesoscopic lattice deformation that ``anticipates'' the upcoming phase transition. Among these precursive effects is the observation of the so-called ``tweed'' pattern in transmission electron microscopy in a wide variety of materials. We have investigated the tweed deformation in a two dimensional model system, and found that it arises because the compositional disorder intrinsic to any alloy conspires with the natural geometric constraints of the lattice to produce a frustrated, glassy phase. The predicted phase diagram and glassy behavior have been verified by numerical simulations, and diffraction patterns of simulated systems are found to compare well with experimental data. Analytically comparing to alternative models of strain-disorder coupling, we show that the present model best accounts for experimental observations.
description: 43 pages in TeX, plus figures. Most figures supplied separately in uuencoded format. Three other figures available via anonymous ftp.
FKN theorem for the multislice, with applications
Creators: name: Filmus, Yuval
Publisher: name: arXiv
Year: 2018
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: Primary 42C10, Secondary 60E15

description: The Friedgut-Kalai-Naor (FKN) theorem states that if $f$ is a Boolean function on the Boolean cube which is close to degree 1, then $f$ is close to a dictator, a function depending on a single coordinate. The author has extended the theorem to the slice, the subset of the Boolean cube consisting of all vectors with fixed Hamming weight. We extend the theorem further, to the multislice, a multicoloured version of the slice. As an application, we prove a stability version of the edge-isoperimetric inequality for settings of parameters in which the optimal set is a dictator.
description: 12 pages
Parity-Preserving Pauli-Villars Regularization in (2+1)-Dimensional Gauge Models
Creators: name: Baboukhadia, L. R.
name: Khelashvili, A. A.
name: Kiknadze, N. A.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is shown that, in QED$_{3}$, the Pauli-Villars regularization involving a pair of auxiliary fermion fields with masses of opposite sign leads to results that are consistent with those obtained using all other parity-preserving schemes of regularization. At the same time, ambiguity problems remain unsolved in non-Abelian models (QCD$_{3}$).
description: Latex, 9 pages
ГАШИНГ ПИВА: СОВРЕМЕННОЕ СОСТОЯНИЕ ПРОБЛЕМЫ
Creators: name: ВОЛКОВА ТАТЬЯНА НИКОЛАЕВНА
name: СЕЛИНА ИРИНА ВАСИЛЬЕВНА
name: СОЗИНОВА МАРИНА СЕРГЕЕВНА
Publisher: name: Пиво и напитки
Year: 2019
Subjects: ГИДРОФОБИНЫ
МЕТОДЫ ОПРЕДЕЛЕНИЯ СКЛОННОСТИ К ГАШИНГУ В ЗЕРНОВОМ СЫРЬЕ
НАНОПУЗЫРЬКИ СО2
ПЕНА
ПЕРВИЧНЫЙ ГАШИНГ
ПОВЕРХНОСТНО-АКТИВНЫЕ ВЕЩЕСТВА
ПРОТЕИНЫ ПИВНОЙ ПЕНЫ
ФУЗАРИУМ

description: Гашинг - явление избыточного пенообразования с выбросом напитка из бутылки при ее откупоривании. Гашинг наблюдается в широком спектре карбонизированных напитков: соках, вине, пиве, но наиболее известен в пивоваренной индустрии, где приносит большие материальные убытки и приводит к падению имиджа марок пива. Пивовары в течение многих лет пытаются понять природу и причины гашинга, разрабатывают методы оценки склонности к гашингу в ячмене, пшенице и солоде. Было установлено, что причины первичного гашинга связаны с повреждением зерна мицелиальными микроскопическими грибами, главным образом, видами фузариума (Fusarium spp.), что случается в годы с дождливым вегетационным периодом. Вторичный гашинг - это следствие нарушений в технологии производства пива. Настоящий обзор посвящен проблемам первичного гашинга. Изучали процесс образования пены в пиве и роль в нем поверхностно-активных веществ. Именно ПАВ обеспечивают стойкость пены. Обнаружили, что мицелиальные грибы, развивающиеся на зерне, синтезируют и выделяют в окружающую среду поверхностно-активные вещества гидрофобины, которые в процессе пивоварения попадают в сусло и пиво. Доказали, что гидрофобины видов фузариума F. graminearum, F. culmorum, F. poae, соответственно GzHYD5, FcHYD5 и FpHYD5, способны вызывать сильный гашинг при внесении в пиво даже в очень малых концентрациях, измеряемых в ppb, то есть они служат гашинг-факторами. Установили, что в процессе самосборки протеиновых слоев на поверхностях нанопузырьков пены происходит взаимодействие поверхностно-активных гидрофобинов грибов и поверхностно-активных протеинов nsltp1 из зерна. В опытах размеры гашинга зависели от количественного соотношения этих протеинов, FcHYD5 : nsLtp1, и от степени их гликирования. Было установлено, что гашинг - мультифакторный феномен, и пока никакого ясного механизма этого явления предложено не было. В работах последних лет использовали самые современные молекулярно-генетические, масс-спектрометрические, иммуноферментные, статистические и другие методы. Они позволили продвинуться в понимании природы гашинга, однако не дали в руки практиков-солодовщиков простого и быстрого метода скрининга зернового сырья на предрасположенность к гашингу.
Two contradictory facades of N-acetylcysteine activity towards renal carcinoma cells
Creators: name: Yu, Zhihai
name: Yu, Kun
name: Wu, Shaobo
name: Zhao, Qiurong
name: Guo, Yaochuan
name: Liu, Hengchuan
name: Huang, Xiao
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biophysics
subject: Medicine
subject: Cell Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Hematology

description: As a prescribed antioxidant, N-Acetylcysteine is used in treating disease and supportive care. However, N-acetylcysteine’s role in cancer therapy is controversial and needs to be investigated thoroughly. Presently, renal cell carcinoma is one of the most common forms of malignancy and needs new anti-cancer drugs with high efficacy and low side effect. Herein, we studied the effect of N-acetylcysteine on cell proliferation, oxidant stress, and apoptosis on human renal cell carcinoma cell line A498 and tried to understand the mechanisms driving these effects. The results show that N-acetylcysteine could enhance antioxidative activities against oxidative damage and suppress the expression of the directly apoptotic protein to inhibit apoptosis when used at low concentration (<10 mM), thereby protecting A498 cells. On the other hand, N-acetylcysteine induced oxidative stress, leading to mitochondria damage and directly activating apoptotic protein to induce apoptosis at high concentrations (>10 mM), thereby killing A498 cells. Therefore, N-acetylcysteine has two contradictory activities towards renal cell carcinoma cells.
Assessing Student Engagement And Learning Outcomes In Multimedia-Enhanced Education: A Study In Kuwait's Colleges Of Basic Education
Creators: name: Rabab D. Alsaffar
Publisher: name: Zenodo
Year: 2025
Subjects: Multimedia Tools, Student Engagement Level, Instructional Method, Frequency Of Multimedia Use, Learning Satisfaction, Academic Performance

description: The purpose of this research is to investigate on the impact of factors that influence the multimedia usage by the students of Basic Education in Kuwait on the learning outcome achievement. The research adopts a positivist paradigm with quantitative approach and survey strategy. Convenience sampling is the techniques used for the data collection and self-administered questionnaire both in hardcopy and electronic forms have been used to reach sample size of 206 students from the Colleges of Basic Education in Kuwait. Analysis includes both descriptive and inferential statistics the former being used for testing the reliability of the data and normality conditions, and the latter being used for hypothesis testing. The 4X4 ANOVA was used for testing the association of four factors of student engagement with the multimedia and the four variables measuring the learning outcome achievement. Results indicated that multimedia tools used (MTU) had a statistically significant association with all the four variables of learning outcome achievement; whereasstudent engagement level (SEL) had a statistically significant association with academic performance (ACP) and retention of knowledge (RTK), instructional method (INM) had an association with learning satisfaction (LRS), and frequency of multimedia use (FMU) had an association with technology self-efficacy (TSE). These findings have led to the suggestions to the top leadership of colleges of basic education and multimedia developers that includes advanced training for faculty, collaboration between the academics and multimedia developers, promoting structured use of multimedia tools, incorporating flipped classrooms and problem-based learning to promote student engagement, introducing real-world cross-disciplinary projects and real-time student feedback during instruction. The outcome of this research could be useful to both academics and practitioners as the research is based on real-life data.
Initial Conditions for Semiclassical Field Theory
Creators: name: Maslov, V. P.
name: Shvedov, O. Yu.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Semiclassical approximation based on extracting a c-number classical component from quantum field is widely used in the quantum field theory. Semiclassical states are considered then as Gaussian wave packets in the functional Schrodinger representation and as Gaussian vectors in the Fock representation. We consider the problem of divergences and renormalization in the semiclassical field theory in the Hamiltonian formulation. Although divergences in quantum field theory are usually associated with loop Feynman graphs, divergences in the Hamiltonian approach may arise even at the tree level. For example, formally calculated probability of pair creation in the leading order of the semiclassical expansion may be divergent. This observation was interpretted as an argumentation for considering non-unitary evolution transformations, as well as non-equivalent representations of canonical commutation relations at different time moments. However, we show that this difficulty can be overcomed without the assumption about non-unitary evolution. We consider first the Schrodinger equation for the regularized field theory with ultraviolet and infrared cutoffs. We study the problem of making a limit to the local theory. To consider such a limit, one should impose not only the requirement on the counterterms entering to the quantum Hamiltonian but also the requirement on the initial state in the theory with cutoffs. We find such a requirement in the leading order of the semiclassical expansion and show that it is invariant under time evolution. This requirement is also presented as a condition on the quadratic form entering to the Gaussian state.
description: 20 pages, Plain TeX, one postscript figure
Dielectric and Dilatometric Studies of Glass Transitions in Thin Polymer Films
Creators: name: Fukao, Koji
name: Miyamoto, Yoshihisa
Publisher: name: arXiv
Year: 2000
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Dielectric relaxation and thermal expansion spectroscopy were made for thin polystyrene films in order to measure the temperature $T_α$ corresponding to the peak in the loss component of susceptibility due to the $α$-process and the $α$-relaxation time $τ$ as functions of film thickness $d$. While the glass transition temperature $T_{\rm g}$ decreases with decreasing film thickness, $T_α$ and $τ$ were found to remain almost constant for $d>d_{\rm c}$ and decrease drastically for $d
description: 4 pages, 5 figures
Possible dwarf nova on the Digitized Sky Survey plates
Creators: name: Romanov, F. D.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: I report the discovery of a new bright variable star in the constellation Scorpius. It is most likely star OGLE BUL-SC23 396060 with position (J2000.0): RA 17:57:59.75, DEC -31:38:07.4. Magnitude range is 14.4 (B) - 21.7 (V). It is visible in the possible outburst on two digitized Palomar Sky Survey photographic plates, which were made 60 years ago. This object was registered as a variable star in the AAVSO VSX under the name of Romanov V1 and with UG: variability type.
description: 6 pages, 4 figures, 2 tables. Published in OEJV #190
Decarboxylation of indole-3-carboxylic acids under metal-free conditions
Creators: name: Chen, Xia
name: Zhou, Xiao-Yu
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified

description: Two reaction systems have been developed for the decarboxylation of indole-3-carboxylic acids. The decarboxylation can be achieved smoothly under K2CO3-catalyzed or acetonitrile-promoted basic conditions. It provided an efficient and simple method for the transformation of indole-3-carboxylic acids and the corresponding indoles were isolated with good to excellent yields. From the experimental facts, we put forward the possible reaction mechanism.
МЕТОДЫ ОПРЕДЕЛЕНИЯ МИНЕРАЛЬНЫХ ВЕЩЕСТВ В ПРОЦЕССЕ ПРОИЗВОДСТВА СПИРТНЫХ НАПИТКОВ, ПОЛУЧЕННЫХ С ПРИМЕНЕНИЕМ РАСТИТЕЛЬНОГО СЫРЬЯ
Creators: name: АБРАМОВА ИРИНА МИХАЙЛОВНА
name: МЕДРИШ МАРИНА ЭДУАРДОВНА
name: САВЕЛЬЕВА ВЕРА БОРИСОВНА
name: ГАВРИЛОВА ДАРЬЯ АЛЕКСЕЕВНА
name: ЖИРОВА ВЕРА ВЛАДИМИРОВНА
Publisher: name: Пиво и напитки
Year: 2019
Subjects: АНИОНЫ
КАТИОНЫ
КАЧЕСТВО
МЕТАЛЛЫ
МЕТОДЫ ИССЛЕДОВАНИЙ
МИНЕРАЛЬНЫЕ ВЕЩЕСТВА
РАСТИТЕЛЬНОЕ СЫРЬЕ
СПИРТНЫЕ НАПИТКИ

description: Одна из актуальных проблем производства спиртных напитков, полученных с применением растительного сырья, заключается в образовании помутнений и осадков при их длительном хранении. К помутнениям более чувствительны спиртные напитки с большим сроком выдержки, имеющие высокие концентрации сухих веществ. Реакция формирования осадка протекает очень медленно, осадок может появиться в напитке, уже находящемся в торговой сети, и послужить причиной забраковки всей партии. В статье представлены сведения о методах исследования минеральных веществ в спиртных напитках, полученных с применением растительного сырья. Для определения микроэлементного состава спиртных напитков, в том числе виски, применяют различные методы: ионной хроматографии, капиллярного электрофореза, атомной абсорбционной спектроскопии с различными типами детектирования, оптической эмиссионной спектрометрии с индуктивно связанной плазмой. Представлены данные об использовании за рубежом ряда микроэлементов в качестве маркеров для выявления фальсифицированной продукции и обеспечения возможности идентифицирования спиртных напитков по возрасту, сырьевому составу и региону происхождения. Так, марганец служит одним из маркеров, указывающих на выдержку спиртного напитка с использованием дубовой стружки независимо от ее разновидности, а медь - маркер влияния типа дубовой стружки. Содержание меди в солодовых виски гораздо выше, чем в купажированных и зерновых, что связано с технологией производства дистиллятов, так как для изготовления солодовых виски используют медные кубы. Изучение представленной проблемы позволяет осуществлять совершенствование и внедрение современных аналитических методов, позволяющих проводить комплексный контроль качества и безопасности спиртных напитков, полученных с применением растительного сырья.
Multi-responsive luminescent 2D Zn(II)-based coordination polymer for detection of trinitrophenol and Fe3+
Creators: name: Wang, Jing
name: Lu, Lu
name: Ding, Qiongjie
name: Zhang, Si-Le
name: Wang, Jun
name: Singh, Ayushi
name: Kumar, Abhinav
name: Ma, Aiqing
Publisher: name: Taylor & Francis
Year: 2020
Subjects: Biophysics
Biochemistry
Physical Sciences not elsewhere classified
Molecular Biology
Pharmacology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Cancer
Computational Biology

description: A new Zn(II)-based coordination polymer (CP), [Zn(HL)·1.5H2O] (1), has been synthesized using 4-(2,4,6-tricarboxylphenyl)-3,2ˊ,6ˊ,4ˊˊ-terpyridine (H3L). Single-crystal X-ray diffraction reveals that 1 possesses a 2D layer-like structure, which further connects through hydrogen bonding interactions to form a 3D supramolecular network. The luminescence measurements showed that 1 is capable of detecting nitro-aromatic compounds (NACs) in particular 2,4,6-trinitrophenol (TNP) as well as Fe3+ ions with high sensitivity and selectivity in aqueous medium. The limit of detections (LODs) for the recognition of TNP and Fe3+ are 1.23 and 0.94 ppm, respectively. The reason for decrease in intensity of emission of 1 on addition of NACs to it has been examined by theoretical calculations which suggested that charge transfer is taking place between 1 and NACs which may be the prime reason for the decrease in emission intensity.