cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The application of bose-einstein condensates to inertial sensing
Creators: name: Debs, John Elias
Publisher: name: The Australian National University
Year: 2012
Subjects: subject: Bose-Einstein condensation
subject: Interferometry
subject: Detectors Research

description: This thesis presents experimental and theoretical work investigating the application of Bose-condensed atomic sources to atom interferometer-based inertial sensors. In particular, we focus on gravity sensors, which have applications in fundamental physics, Earth sciences, mineral exploration, and navigation. We develop atomic sources, design and implement several different atomic beamsplitters and mirrors, and build atom interferometers utilising Bose-condensed atomic sources. Theoretical work supports all of these experiments. Coupled with the detailed theoretical analyses, these proof-of-principle experiments show that Bose-condensed sources will be critical in the next generation inertial sensors based on atomic interference. - provided by Candidate.
Two chromones with antimicrobial activity from the leaf latex of Aloe monticola Reynolds
Creators: name: Meron Hiruy
name: Bisrat, Daniel
name: Mazumder, Avijit
name: Kaleab Asres
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Aloesin (1) and 7-O-methyl-6′-O-coumaroylaloesin (2) were isolated from the leaf latex of Aloe monticola Reynolds, and their structures determined on the basis of NMR and mass spectroscopic analyses. The antimicrobial activities of the isolated chromones were evaluated against 21 bacterial and 4 fungal strains. Both compounds displayed antibacterial and antifungal effects against most bacterial and fungal strains tested, but their action was more prominent against Salmonella typhi, Shigella dysentery and Staphylococcus aureus (MIC = 10 μg/ml). Acute toxicity tests on mice revealed that neither the latex nor the isolated compounds possess toxicity up to a dose of 2000 mg/kg, signifying an oral LD50 greater than 2000 mg/kg. The results indicate that A. monticola possesses genuine in vitro antimicrobial effect attributed in full or in part to the presence of the isolated chromones in the latex.
Massless finite and infinite spin representations of Poincaré group in six dimensions
Creators: name: Buchbinder, I. L.
name: Fedoruk, S. A.
name: Isaev, A. P.
name: Podoinitsyn, M. A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the massless irreducible representations of the Poincaré group in the six-dimensional Minkowski space. The Casimir operators are constructed and their eigenvalues are found. It is shown that the finite spin (helicity) representation is defined by two integer or half-integer numbers while the infinite spin representation is defined by the real parameter $μ^2$ and one integer or half-integer number.
description: v3: 1+15 pages, minor revision, published version
Giambelli compatible point processes
Creators: name: Borodin, Alexei
name: Olshanski, Grigori
name: Strahov, Eugene
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We distinguish a class of random point processes which we call Giambelli compatible point processes. Our definition was partly inspired by determinantal identities for averages of products and ratios of characteristic polynomials for random matrices found earlier by Fyodorov and Strahov. It is closely related to the classical Giambelli formula for Schur symmetric functions. We show that orthogonal polynomial ensembles, z-measures on partitions, and spectral measures of characters of generalized regular representations of the infinite symmetric group generate Giambelli compatible point processes. In particular, we prove determinantal identities for averages of analogs of characteristic polynomials for partitions. Our approach provides a direct derivation of determinantal formulas for correlation functions.
description: Version 2: proof of Theorem 3.1 corrected; typos fixed; to appear in Advances Appl. Math
Polyphenolic profile, antibacterial activity and brine shrimp toxicity of leaf extracts from six Tunisian spontaneous species
Creators: name: Hajer Tlili
name: Marino, Andreana
name: Ginestra, Giovanna
name: Cacciola, Francesco
name: Mondello, Luigi
name: Natalizia Miceli
name: Taviano, Maria Fernanda
name: Hanen Najjaa
name: Nostro, Antonia
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: Plant Biology
subject: 60506 Virology

description: The aim of this study was to investigate the polyphenolic profile and biological properties of leaves acetonic extracts from six Tunisian spontaneous plants of Marrubium vulgare L., Rhus tripartita (Ucria) D.C., Hernaria fontanesii J. Gay subsp. fontanesii, Ziziphus lotus L., Plantago ovata Forsk., Thymelaea hirsuta (L.) Endl. Bioassay-guided and HPLC-PDA-ESI-MS procedures demonstrated that R. tripartita contained the highest amount of phenolic compounds (1475.1 µg/g), followed by Z. lotus (1087.8 µg/g) and P. ovata (1027.6 µg/g). Interestingly, in R. tripartita myricetin‐3-O-galactoside turned out to be the most abundant one. The plant extracts showed antimicrobial efficacy against Listeria monocytogenes, Staphylococcus aureus and S. epidermidis including methicillin resistant strains; no activity was detected against Gram-negative bacteria. R. tripartita revealed the best MIC and MBC values and caused significant decrease of S. aureus biofilm. Both R. tripartita and Z. lotus did not display any toxicity against Artemia salina Leach (LC50 > 1000 μg/mL).
Costunolide and parthenolide from Champi Sirindhorn (Magnolia sirindhorniae) inhibit leukemic cell proliferation in K562 and molt-4 cell lines
Creators: name: Sawalee Saosathan
name: Jalernsri Khounvong
name: Methee Rungrojsakul
name: Trinnakorn Katekunlaphan
name: Singkome Tima
name: Sawitree Chiampanichayakul
name: Berkland, Cory
name: Songyot Anuchapreeda
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Hematology

description: The magnolia plant has been used in traditional medicine since ancient times. This study was designed to investigate the effects of active compounds from Thai Champi Sirindhorn (Magnolia sirindhorniae) on leukemic biomarker Wilms’ tumor 1 (WT1) protein expressions in K562 and Molt-4 cells. Costunolide (1) and parthenolide (2) were the major components used in this study, they were purified from ethyl acetate fractions. Costunolide (1) and parthenolide (2) had strong cytotoxic effects in K562 and Molt-4 cells measured with MTT assays. Their activities were compared to standard commercial costunolide (3) and parthenolide (4). Costunolide (1) and parthenolide (2) decreased WT1 protein levels and total cell numbers in K562 and Molt-4 cells. Both purified costunolide (1) and standard commercial costunolide (3) decreased WT1 protein levels in a time- and dose-dependent manner. Therefore, the active compounds from M. sirindhorniae were identified as promising sources for bioactive compounds for further applications in traditional medicine.
Exactly solvable quantum state reduction models with time-dependent coupling
Creators: name: Brody, Dorje C.
name: Constantinou, Irene C.
name: Dear, James D. C.
name: Hughston, Lane P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A closed-form solution to the energy-based stochastic Schrodinger equation with a time-dependent coupling is obtained. The solution is algebraic in character, and is expressed directly in terms of independent random data. The data consist of (i) a random variable H which has the distribution P(H=E_i) = pi_i, where pi_i is the transition probability from the initial state to the Luders state with energy E_i; and (ii) an independent P-Brownian motion, where P is the physical probability measure associated with the dynamics of the reduction process. When the coupling is time-independent, it is known that state reduction occurs asymptotically--that is to say, over an infinite time horizon. In the case of a time-dependent coupling, we show that if the magnitude of the coupling decreases sufficiently rapidly, then the energy variance will be reduced under the dynamics, but the state need not reach an energy eigenstate. This situation corresponds to the case of a ``partial'' or ``incomplete'' measurement of the energy. We also construct an example of a model where the opposite situation prevails, in which complete state reduction is achieved after the passage of a finite period of time.
description: 27 pages
Motor-Imagery-Based Brain Computer Interface using Signal Derivation and Aggregation Functions
Creators: name: Fumanal-Idocin, Javier
name: Wang, Yu-Kai
name: Lin, Chin-Teng
name: Fernández, Javier
name: Sanz, Jose Antonio
name: Bustince, Humberto
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Artificial Intelligence (cs.AI)
subject: Systems and Control (eess.SY)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Brain Computer Interface technologies are popular methods of communication between the human brain and external devices. One of the most popular approaches to BCI is Motor Imagery. In BCI applications, the ElectroEncephaloGraphy is a very popular measurement for brain dynamics because of its non-invasive nature. Although there is a high interest in the BCI topic, the performance of existing systems is still far from ideal, due to the difficulty of performing pattern recognition tasks in EEG signals. BCI systems are composed of a wide range of components that perform signal pre-processing, feature extraction and decision making. In this paper, we define a BCI Framework, named Enhanced Fusion Framework, where we propose three different ideas to improve the existing MI-based BCI frameworks. Firstly, we include aan additional pre-processing step of the signal: a differentiation of the EEG signal that makes it time-invariant. Secondly, we add an additional frequency band as feature for the system and we show its effect on the performance of the system. Finally, we make a profound study of how to make the final decision in the system. We propose the usage of both up to six types of different classifiers and a wide range of aggregation functions (including classical aggregations, Choquet and Sugeno integrals and their extensions and overlap functions) to fuse the information given by the considered classifiers. We have tested this new system on a dataset of 20 volunteers performing motor imagery-based brain-computer interface experiments. On this dataset, the new system achieved a 88.80% of accuracy. We also propose an optimized version of our system that is able to obtain up to 90,76%. Furthermore, we find that the pair Choquet/Sugeno integrals and overlap functions are the ones providing the best results.
description: IEEE Transactions on Cybernetics (2021)
Understanding Galaxy Formation and Evolution
Creators: name: Avila-Reese, V.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The old dream of integrating into one the study of micro and macrocosmos is now a reality. Cosmology, astrophysics, and particle physics intersect in a scenario (but still not a theory) of cosmic structure formation and evolution called Lambda Cold Dark Matter (LCDM) model. This scenario emerged mainly to explain the origin of galaxies. In these lecture notes, I first present a review of the main galaxy properties, highlighting the questions that any theory of galaxy formation should explain. Then, the cosmological framework and the main aspects of primordial perturbation generation and evolution are pedagogically detached. Next, I focus on the ``dark side'' of galaxy formation, presenting a review on LCDM halo assembling and properties, and on the main candidates for non-baryonic dark matter. It is shown how the nature of elemental particles can influence on the features of galaxies and their systems. Finally, the complex processes of baryon dissipation inside the non-linearly evolving CDM halos, formation of disks and spheroids, and transformation of gas into stars are briefly described, remarking on the possibility of a few driving factors and parameters able to explain the main body of galaxy properties. A summary and a discussion of some of the issues and open problems of the LCDM paradigm are given in the final part of these notes.
description: 50 pages, 10 low-resolution figures (for normal-resolution, DOWNLOAD THE PAPER (PDF, 1.9 Mb) FROM http://www.astroscu.unam.mx/~avila/avila.pdf). Lectures given at the IV Mexican School of Astrophysics, July 18-25, 2005 (submitted to the Editors on March 15, 2006)
KMaP - MAPping the knowledge. The brand-new UNEP-MAP Knowledge Management Platform prototype for the Mediterranean Sea
Creators: name: Minelli, Annalisa
Publisher: name: Zenodo
Year: 2024
Subjects: SDI
Knowledge Management
Mediterranean Sea

description: This presentation was given at the last Conference Of the Parties of the Barcelona Convention (UNEP-MAP) the last 7th of the December 2023 in Portoroz (Slovenia). The presentation describes the first released prototype of the UNEP-MAP Knowledge Management Platform aimed to become the unique access hub to Mediterranean knowledge with respect both to official and scientific data regarding the Mediterranean environment and its connected features. 

The first prototype is composed by a Data Hub, handling geographical data, and a Knowledge Hub, handling documents. A joint effort to review and harmonize the knowledge has been made by Regional Activity Centers (RACs) composing UNEP-MAP ecosystem. After data source metadatation, data has been made available, where possible, in compliance with MAP adopted Data Policy. The Data Hub is fully interoperable with other machines by means of commonly agreed international standards for geographical data. The Knowledge Hub does not harvest but links, where possible, documents from RACs libraries, in order to do not duplicate efforts. An extensive study on users and their requirements has been carried out before implementing the prototype, access to the platform resources has been diversified after these. A third Hub (Knowledge Exchange Hub) will be developed whithin the next biennium activities, conceived as the trading place among proper users of the platform (stakeholders, local communities, researchers, citizens, decision makers) and their necessities (e.g. find resources, co-design projects, obtain information, contribute with citizen science observations, become aware of UNEP-MAP topics).
Lake symbols for island parsing
Creators: name: Okuda, Katsumi
name: Chiba, Shigeru
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences

description: Context: An island parser reads an input text and builds the parse (or abstract syntax) tree of only the programming constructs of interest in the text. These constructs are called islands and the rest of the text is called water, which the parser ignores and skips over. Since an island parser does not have to parse all the details of the input, it is often easy to develop but still useful enough for a number of software engineering tools. When a parser generator is used, the developer can implement an island parser by just describing a small number of grammar rules, for example, in Parsing Expression Grammar (PEG). Inquiry: In practice, however, the grammar rules are often complicated since the developer must define the water inside the island; otherwise, the island parsing will not reduce the total number of grammar rules. When describing the grammar rules for such water, the developer must consider other rules and enumerate a set of symbols, which we call alternative symbols. Due to this difficulty, island parsing seems to be not widely used today despite its usefulness in many applications. Approach: This paper proposes the lake symbols for addressing this difficulty in developing an island parser. It also presents an extension to PEG for supporting the lake symbols. The lake symbols automate the enumeration of the alternative symbols for the water inside an island. The paper proposes an algorithm for translating the extended PEG to the normal PEG, which can be given to an existing parser generator based on PEG. Knowledge: The user can use lake symbols to define water without specifying each alternative symbol. Our algorithms can calculate all alternative symbols for a lake symbol, based on where the lake symbol is used in the grammar. Grounding: We implemented a parser generator accepting our extended PEG and implemented 36 island parsers for Java and 20 island parsers for Python. Our experiments show that the lake symbols reduce 42 % of grammar rules for Java and 89 % of rules for Python on average, excluding the case where islands are expressions. Importance: This work eases the use of island parsing. Lake symbols enable the user to define the water inside the island simpler than before. Defining water inside the island is essential to apply island parsing for practical programming languages.
Unmodified household coffee maker assisted extraction and purification of anticancer agents from Dillenia indica fruits
Creators: name: Khan, Mohsin Ali
name: Ahamad, Tanveer
name: Saquib, Mohammad
name: Mohd Kamil Hussain
name: Khan, Mohammad Faheem
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Bioassay targeted, 80% aqueous ethanol crude extract of the fruits of Dillenia indica Linn, using the unmodified household coffee maker, afforded five compounds, namely betulinic acid (1), rhamnazin (2), dillenetin (3), luteolin-7-O-β-D-glucoside (4) and hypolaetin-8-O-β-D-glucoside (5). The crude extract, fractions and purified compounds were tested against MDA MB-231, A549 and HeLa cancer cell lines by MTT assay, using betulinic acid 1, as a positive control. Compound 3 showed the best activity against A549 (IC50 = 26.60 ± 2.5 µM) and HeLa cancer cell lines (IC50 =19.35 ± 0.9 µM), whereas compound 5 was found to show the best activity against MDA MB-231 (IC50 = 34.62 ± 5.2µM) cancer cell line. These highly potent anticancer compounds obtained from the fruits of D. indica may be suitable for herbal drug development and formulations.
The Heisenberg limit for laser coherence
Creators: name: Baker, Travis J.
name: Saadatmand, S. N.
name: Berry, Dominic W.
name: Wiseman, Howard M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Computational Physics (physics.comp-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: To quantify quantum optical coherence requires both the particle- and wave-natures of light. For an ideal laser beam [1,2,3], it can be thought of roughly as the number of photons emitted consecutively into the beam with the same phase. This number, $\mathfrak{C}$, can be much larger than $μ$, the number of photons in the laser itself. The limit on $\mathfrak{C}$ for an ideal laser was thought to be of order $μ^2$ [4,5]. Here, assuming nothing about the laser operation, only that it produces a beam with certain properties close to those of an ideal laser beam, and that it does not have external sources of coherence, we derive an upper bound: $\mathfrak{C} = O(μ^4)$. Moreover, using the matrix product states (MPSs) method [6,7,8,9], we find a model that achieves this scaling, and show that it could in principle be realised using circuit quantum electrodynamics (QED) [10]. Thus $\mathfrak{C} = O(μ^2)$ is only a standard quantum limit (SQL); the ultimate quantum limit, or Heisenberg limit, is quadratically better.
description: 6 pages, 4 figures, and 31 pages of supplemental information. v2: This paper is now published [Nature Physics DOI:10.1038/s41567-020-01049-3 (26 October 2020)]. For copyright reasons, this arxiv paper is based on a version of the paper prior to the accepted (21 August 2020) version
Hexagonal convection patterns in atomistically simulated fluids
Creators: name: Rapaport, D. C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Molecular dynamics simulation has been used to model pattern formation in three-dimensional Rayleigh--Benard convection at the discrete-particle level. Two examples are considered, one in which an almost perfect array of hexagonally-shaped convection rolls appears, the other a much narrower system that forms a set of linear rolls; both pattern types are familiar from experiment. The nature of the flow within the convection cells and quantitative aspects of the development of the hexagonal planform based on automated polygon subdivision are analyzed. Despite the microscopic scale of the system, relatively large simulations with several million particles and integration timesteps are involved.
description: 4 pages, 6 figures (color figures have low resolution, high resolution figures available on author's website) Minor changes to text. To appear in PRE (Rapid Comm)
Transport efficiency of continuous-time quantum walks on graphs
Creators: name: Razzoli, Luca
name: Paris, Matteo G. A.
name: Bordone, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Continuous-time quantum walk describes the propagation of a quantum particle (or an excitation) evolving continuously in time on a graph. As such, it provides a natural framework for modeling transport processes, e.g., in light-harvesting systems. In particular, the transport properties strongly depend on the initial state and on the specific features of the graph under investigation. In this paper, we address the role of graph topology, and investigate the transport properties of graphs with different regularity, symmetry, and connectivity. We neglect disorder and decoherence, and assume a single trap vertex accountable for the loss processes. In particular, for each graph, we analytically determine the subspace of states having maximum transport efficiency. Our results provide a set of benchmarks for environment-assisted quantum transport, and suggest that connectivity is a poor indicator for transport efficiency. Indeed, we observe some specific correlations between transport efficiency and connectivity for certain graphs, but in general they are uncorrelated.
Ruppert, Lothar u.a., Zum Thema "Diaspora und Ökumene"
Creators: name: Klein, Laurentius
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 37 Nr. 2 (1988): Ökumenische Rundschau, Band 37, Heft 2
VLBA Identification of the Milliarcsecond Active Nucleus in the Seyfert Galaxy NGC 4151
Creators: name: Ulvestad, James S.
name: Wong, Diane S.
name: Taylor, Gregory B.
name: Gallimore, Jack F.
name: Mundell, Carole G.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Seyfert galaxy NGC 4151 has been imaged at resolution better than 0.1 pc using a VLBI array consisting of the VLBA and three 100m-class telescopes. A flat-spectrum 3-mJy source with a monochromatic radio power of ~10^{37} ergs/s has been detected, apparently at the location of the active galactic nucleus (AGN) and its central black hole. The radio source has a minimum brightness temperature of 2.1 x 10^8 K and a size upper limit of 0.035 pc, about 10 times the diameter of the broad-line region and 15,000 times the diameter of the black hole's event horizon. An additional flat-spectrum component located within a parsec of the apparent nucleus is likely to be a knot in the inner radio jet. The presence of some steep-spectrum radio emission within 0.1 pc of the galaxy nucleus limits the emission measure of a possible ionized torus to a maximum value of 10^8 cm^{-6}pc. If the hard X-ray source in NGC 4151 is associated with the radio AGN, its radio to X-ray ratio is less than 10^{-5}, putting NGC 4151 securely in the radio-quiet class of AGNs. The radio image reveals a 0.2 pc two-sided base to the well-known arcsecond radio jet. Apparent speeds of jet components relative to the radio AGN are <0.050c and <0.028c at respective nuclear distances of 0.16 pc and 6.8 pc. These are the lowest speed limits yet found for a Seyfert galaxy, and indicate non-relativistic jet motions, possibly due to thermal plasma, on a scale only an order of magnitude larger than the broad-line region.
description: Accepted to Astronomical Journal, 23 pages, 5 figures, 1 color figure
Lorentz and CPT violation: a simple neutrino-oscillation model
Creators: name: Klinkhamer, Frans R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present a three-parameter model for three flavors of massless left-handed neutrinos with Fermi-point splitting and tri-maximal mixing angles. One of these parameters is the T-violating phase δ, for which the experimental results from K2K and KamLAND appear to favor a nonzero value. Future experiments, in particular MINOS, will be able to test this simple model. Possible implications for neutrino factories are briefly discussed.
description: talk at 6th International Workshop on Neutrino Factories and Superbeams (NuFact04), Osaka, Japan, July 2004; v2: published version
Costunolide and parthenolide from Champi Sirindhorn (Magnolia sirindhorniae) inhibit leukemic cell proliferation in K562 and molt-4 cell lines
Creators: name: Sawalee Saosathan
name: Jalernsri Khounvong
name: Methee Rungrojsakul
name: Trinnakorn Katekunlaphan
name: Singkome Tima
name: Sawitree Chiampanichayakul
name: Berkland, Cory
name: Songyot Anuchapreeda
Publisher: name: Figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Hematology

description: The magnolia plant has been used in traditional medicine since ancient times. This study was designed to investigate the effects of active compounds from Thai Champi Sirindhorn (Magnolia sirindhorniae) on leukemic biomarker Wilms’ tumor 1 (WT1) protein expressions in K562 and Molt-4 cells. Costunolide (1) and parthenolide (2) were the major components used in this study, they were purified from ethyl acetate fractions. Costunolide (1) and parthenolide (2) had strong cytotoxic effects in K562 and Molt-4 cells measured with MTT assays. Their activities were compared to standard commercial costunolide (3) and parthenolide (4). Costunolide (1) and parthenolide (2) decreased WT1 protein levels and total cell numbers in K562 and Molt-4 cells. Both purified costunolide (1) and standard commercial costunolide (3) decreased WT1 protein levels in a time- and dose-dependent manner. Therefore, the active compounds from M. sirindhorniae were identified as promising sources for bioactive compounds for further applications in traditional medicine.
On the Design of Structured Stabilizers for LTI Systems
Creators: name: Ferrante, Francesco
name: Dabbene, Fabrizio
name: Ravazzi, Chiara
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Designing a static state-feedback controller subject to structural constraint achieving asymptotic stability is a relevant problem with many applications, including network decentralized control, coordinated control, and sparse feedback design. Leveraging on the Projection Lemma, this work presents a new solution to a class of state-feedback control problems, in which the controller is constrained to belong to a given linear space. We show through extensive discussion and numerical examples that our approach leads to several advantages with respect to existing methods: first, it is computationally efficient; second, it is less conservative than previous methods, since it relaxes the requirement of restricting the Lyapunov matrix to a block-diagonal form.
description: V1 fixes a few minor typos in the published version. V2 includes a clarification and fixes some minor typos in the proof of Theorem 2
Conversations of privilege : exploring with diversity educators’ "white culture", dominance and oppression
Creators: name: MacNiel, Deborah
Publisher: name: University of British Columbia
Year: 2009

description: This research explores clusters of meanings, understandings, and shared reference points that people with white skinned privilege may share. The literature often refers to these as "White culture". Interviews with nine English-speaking diversity educators of European ancestry provide the primary data. W e discussed their perceptions of the social constructions of whiteness and privilege, the consequences of selective privileging, how is this maintained and the problems involved in addressing systemic inequality. I bring the salient points from these discussions together with the literature to offer a comprehensive, grounded portrayal of situated conceptions of "White culture", privilege and dominant culture. I employed qualitative methods of open-ended, in-depth interviewing, which incorporate feminist research methodology (research a s praxis, research as empowerment) and critical perspectives (critical ethnography, grounded theory, interpretative analysis). This approach is consistent with my values of being inclusive, gaining insight into the perspectives of others and creating a mutually enriching, collaborative process of inquiry. The significance of this investigation lies in raising awareness about interactions among factors within whiteness, privilege, dominance and oppression; enhancing educators' abilities to recognise other contributing factors; identifying why/ how the system is maintained, recognising its consequences and considering how to alter this condition in society. Multicultural education in Canada has generally focused on Others, and can be enhanced through fostering a dialogue among the relatively privileged as well as between dominant and oppressed peoples living within a society of cultural/ racial privilege. The product of this research includes concrete representations summarising various aspects of privilege and dominant culture. Through charts, tables and figures I make privilege more visible and dominant culture more tangible. To portray the complex dynamic among aspects of the dominant culture, which shapes these into a multitude of different configurations, I employ the metaphor, constellations of privilege. Essentially, I offer a possible model for understanding the elements and interrelationships that comprise and maintain a system of selective privileging, which underlies dominance and oppression within society. I conclude this study with a discussion of transformative learning theory and how we may use it to incorporate the insights uncovered through this research into educational practice.
Multi-phase matching in the Grover algorithm
Creators: name: Toyama, F. M.
name: van Dijk, W.
name: Nogami, Y.
name: Tabuchi, M.
name: Kimura, Y.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Phase matching has been studied for the Grover algorithm as a way of enhancing the efficiency of the quantum search. Recently Li and Li found that a particular form of phase matching yields, with a single Grover operation, a success probability greater than 25/27 for finding the equal-amplitude superposition of marked states when the fraction of the marked states stored in a database state is greater than 1/3. Although this single operation eliminates the oscillations of the success probability that occur with multiple Grover operations, the latter oscillations reappear with multiple iterations of Li and Li's phase matching. In this paper we introduce a multi-phase matching subject to a certain matching rule by which we can obtain a multiple Grover operation that with only a few iterations yields a success probability that is almost constant and unity over a wide range of the fraction of marked items. As an example we show that a multi-phase operation with six iterations yields a success probability between 99.8% and 100% for a fraction of marked states of 1/10 or larger.
description: 10 pages, 8 figures
Kirchner, Hubert (Hrsg.), Freikirchen und konfessionelle Minderheitskirchen
Creators: name: Hd.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 37 Nr. 2 (1988): Ökumenische Rundschau, Band 37, Heft 2
New secondary metabolite with cytotoxicity from spawning soft coral Asterospicularia laurae in Taiwan
Creators: name: Jui-Hsin Su
name: Chih-I Liu
name: Mei-Chin Lu
name: Chi-I Chang
name: Hsieh, Min-Ying
name: Lin, Yu-Chi
name: Dai, Chang-Feng
name: Ya-Han Zhang
name: Lin, Zheng-Yu
name: Lin, Yun-Sheng
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry

description: We have conducted a long-term research on the Taiwanese soft coral Asterospicularia laurae, which resulted in many xenicane-type diterpenoids such as asterolaurins A–M from A. laurae coral tissues during the non-spawning period were isolated. Here, we report a new xenicane diterpenoid, asterolaurin N (1), along with three known xenicane-type monocarbocyclic diterpenes [13-epi-9-desacetylxenicin (2), xeniolide-B 9-acetate (3) and asterolaurin I (4)] from A. laurae during the spawning period. The structures of the new secondary metabolite were established with an extensive spectroscopic analysis. The 1D and 2D nuclear magnetic resonance (NMR) data of the compounds were discussed. We discovered that the C-15 of 1 contains two methyl groups on a carbon bearing an acetyl group, which has not been reported previously. In addition, Compounds 1, 3, and 4 showed selective cytotoxic activity against Molt 4, while 2 exhibited significant cytotoxicity against Molt 4, K562, Sup-T1 and U937 cell lines.
Decihertz gravitational waves from double white dwarf merger remnants
Creators: name: Yoshida, Shin'ichirou
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Close binaries of double white dwarfs (DWDs) inspiral and merge by emitting gravitational wave (GW). Orbital motion of some of these binaries are expected to be observed at low frequency band by space-borne laser interferometric detectors of GW. The merger remnant may suffer thermonuclear runaway and explode as type Ia supernova if they are massive enough. As GW sources the remnants have so far been scarcely studied. Here we propose a new mechanism of GW emission from DWD merger remnants which may be observed by planned GW detectors in decihertz frequency band. A remnant is temporarily expected to have a high degree of differential rotation as a consequence of merger process. It is then unstable to oscillation modes whose azimuthal pattern speed coincides with the stellar rotation. We solve eigenvalue problem of differentially rotating remnants and identify unstable eigenmodes which may be categorized to inertial modes. The estimate of characteristic strain of GW shows that they may be detectable within the distance of the Virgo cluster by planned gravitational wave observatories targeting the decihertz band.
description: 23 pages, 6 figures. Accepted for publication in ApJ
The data citation way in eLter
Creators: name: Wohner, Christoph
Publisher: name: Zenodo
Year: 2023
Subjects: biodiversity
data citation
data
digital twin
research infrastructure

description: Data citation plays a pivotal role in advancing transparency, credibility, and collaboration within biodiversity research. It not only acknowledges the dedicated work of data collectors and curators but also streamlines the sharing and integration of invaluable biodiversity datasets.

To illuminate the critical aspects of recognising and attributing biodiversity research datasets and to offer best practices for standardized dataset citation that duly recognises their creators and sources, ultimately enhancing data discoverability, reusability, and giving due credit to those managing it, we have organised a webinar, on the 20th of November 2023, in collaboration with four leading Research Infrastructures: GBIF, LifeWatch, DISSCO and eLTER, to guide users through essential techniques for effectively citing biodiversity data.
Schur-Weyl duality for higher levels
Creators: name: Brundan, Jonathan
name: Kleshchev, Alexander
Publisher: name: arXiv
Year: 2006
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B20

description: We extend Schur-Weyl duality to an arbitrary level $l \geq 1$, the case $l=1$ recovering the classical duality between the symmetric and general linear groups. In general, the symmetric group is replaced by the degenerate cyclotomic Hecke algebra over $\C$ parametrized by a dominant weight of level $l$ for the root system of type $A_\infty$. As an application, we prove that the degenerate analogue of the quasi-hereditary cover of the cyclotomic Hecke algebra constructed by Dipper, James and Mathas is Morita equivalent to certain blocks of parabolic category $\mathcal{O}$ for the general linear Lie algebra.
description: 50 pages; v3: final version (no major changes)
Nonadiabatic phenomena in molecular vibrational polaritons
Creators: name: Szidarovszky, Tamás
name: Badankó, Péter
name: Halász, Gábor J.
name: Vibók, Ágnes
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Nonadiabatic phenomena are investigated in the rovibrational motion of molecules confined in an infrared cavity. Conical intersections (CIs) between vibrational polaritons, similar to CIs between electronic polaritonic surfaces, are found. The spectral, topological, and dynamic properties of the vibrational polaritons show clear fingerprints of nonadiabatic couplings between molecular vibration, rotation and the cavity photonic mode. Furthermore, it is found that for the investigated system, composed of two rovibrating HCl molecules and the cavity mode, breaking the molecular permutational symmetry, by changing $^{35}$Cl to $^{37}$Cl in one of the HCl molecules, the polaritonic surfaces, nonadiabatic couplings, and related spectral, topological, and dynamic properties can deviate substantially. This implies that the natural occurrence of different molecular isotopologues needs to be considered when modeling realistic polaritonic systems.
Unmodified household coffee maker assisted extraction and purification of anticancer agents from Dillenia indica fruits
Creators: name: Khan, Mohsin Ali
name: Ahamad, Tanveer
name: Saquib, Mohammad
name: Mohd Kamil Hussain
name: Khan, Mohammad Faheem
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Cancer
subject: Plant Biology
subject: FOS: Biological sciences

description: Bioassay targeted, 80% aqueous ethanol crude extract of the fruits of Dillenia indica Linn, using the unmodified household coffee maker, afforded five compounds, namely betulinic acid (1), rhamnazin (2), dillenetin (3), luteolin-7-O-β-D-glucoside (4) and hypolaetin-8-O-β-D-glucoside (5). The crude extract, fractions and purified compounds were tested against MDA MB-231, A549 and HeLa cancer cell lines by MTT assay, using betulinic acid 1, as a positive control. Compound 3 showed the best activity against A549 (IC50 = 26.60 ± 2.5 µM) and HeLa cancer cell lines (IC50 =19.35 ± 0.9 µM), whereas compound 5 was found to show the best activity against MDA MB-231 (IC50 = 34.62 ± 5.2µM) cancer cell line. These highly potent anticancer compounds obtained from the fruits of D. indica may be suitable for herbal drug development and formulations.
Double Field Theory and Geometric Quantisation
Creators: name: Alfonsi, Luigi
name: Berman, David S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We examine various properties of double field theory and the doubled string sigma model in the context of geometric quantisation. In particular we look at T-duality as the symplectic transformation related to an alternative choice of polarisation in the construction of the quantum bundle for the string. Following this perspective we adopt a variety of techniques from geometric quantisation to study the doubled space. One application is the construction of the double coherent state that provides the shortest distance in any duality frame and a stringy deformed Fourier transform.
description: 50 pages, LaTex, v2 refrences added, v3 published version
Antifungal activity of essential oil from Mentha spicata L. and Mentha pulegium L. growing wild in Sardinia island (Italy)
Creators: name: A. Piras
name: S. Porcedda
name: D. Falconieri
name: A. Maxia
name: Mj. Gonçalves
name: C. Cavaleiro
name: L. Salgueiro
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology

description: This study aims to evaluate the antifungal activity of Mentha spicata L. and Mentha pulegium L. from Sardinia and to assess their efficacy on virulence factors for Candida albicans, particularly on the inhibition of the germ tube formation. The major compounds of the essential oils were carvone (62.9%) for M. spicata and pulegone (86.2%) for M. pulegium. The essential oil from M. spicata showed a more preeminent effect against Cryptococcus neoformans and the dermatophytes Trichophyton rubrum and T. verrucosum (0.32 μL/mL). Both oils were very effective in inhibiting C. albicans germ tube formation, at doses well below their MIC (0.16 μL/mL).
Dynamical failure of Turing patterns
Creators: name: Manor, Alon
name: Shnerb, Nadav M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The emergence of stable disordered patterns in reactive system on spatially homogenous substrate is studied in the context of vegetation patterns in the semi-arid climatic zone. It is shown that reaction-diffusion systems that allow for Turing instability may exhibit heterogeneous "glassy" steady state, with no characteristic wavelength, if the diffusion rate associated with the "slow" reactant is very small. Upon decreasing the diffusion constant of the slow reactant three phases are identified: strong diffusion yields a stable homogenous phase, intermediate diffusion implies Turing (crystal like) patterns while in the slow diffusion limit the glassy state is the generic stable solution. In this disordered phase the dynamics is of crucial importance, with strong differences between local and global initiation.
Two new flavones glycosides with antimicrobial activities from Clerodendrum formicarum Gürke (Lamiaceae)
Creators: name: Achi Mahamat
name: Gbaweng, Abel Joel Yaya
name: Fotsing, Maurice Tagatsing
name: Talla, Emmanuel
name: Fekam, Fabrice Boyom
name: Celine Henoumont
name: Sophie, Laurent
name: Mbafor, Joseph Tanyi
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Science Policy
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology
subject: 60506 Virology

description: Clerodendrum formicarum Gürke from the Lamiaceae family is a Cameroonian medicinal plant. The crude methanol, methanol residual and ethyl acetate extracts of leaves have been phytochemically studied using chromatography column to afford four compounds; two new flavones glycoside: clerodendronone 1a (3) and clerodendronone 1b (4) along with two known compounds: 5,7-dihydroxy-4′-methoxyflavone (1) and 5-hydroxy-7,4′-dimethoxyflavone (2). Compound structures have been elucidated on the basis of their spectroscopy data and with literature information. The anti-microbial activities of extracts and three isolated compounds were performed. The antibacterial activity was evaluated against four gram positive, five gram negative and three fungus. Clerodendronone 1b (4) showed good antibacterial activity against bacterial gram negative Shigella flexineri NR518 (MIC = 62.5 μg/ml) and moderate activity against Staphylococcus aureus NR46374 (MIC = 250 μ/ml). The ethyl acetate extract recorded good antibacterial activity against Staphylococcus aureus NR46003 (MIC = 125 µg/ml) and Staphylococcus aureus NR46374 (MIC = 125 μg/ml).