cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
R Coronae Borealis stars in the Galactic Bulge discovered by EROS-2
Creators: name: Tisserand, P.
name: Marquette, J. B.
name: Wood, P. R.
name: Lesquoy, E.
name: Beaulieu, J. P.
name: Milsztajn, A.
name: Hamadache, C.
name: Afonso, C.
name: Albert, J. N.
name: Andersen, J.
name: Ansari, R.
name: Aubourg, E.
name: Bareyre, P.
name: Charlot, X.
name: Coutures, C.
name: Ferlet, R.
name: Fouqué, P.
name: Glicenstein, J. F.
name: Goldman, B.
name: Gould, A.
name: Gros, M.
name: Haissinski, J.
name: de Kat, J.
name: Guillou, L. Le
name: Loup, C.
name: Magneville, C.
name: Maurice, E.
name: Maury, A.
name: Moniez, M.
name: Palanque-Delabrouille, N.
name: Perdereau, O.
name: Rahal, Y.
name: Rich, J.
name: Spiro, M.
name: Vidal-Madjar, A.
name: Zylberajch, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Rare types of variable star may give unique insight into short-lived stages of stellar evolution. The systematic monitoring of millions of stars and advanced light curve analysis techniques of microlensing surveys make them ideal for discovering also such rare variable stars. One example is the R Coronae Borealis (RCB) stars, a rare type of evolved carbon-rich supergiant. We have conducted a systematic search of the EROS-2 database for the Galactic catalogue Bulge and spiral arms to find Galactic RCB stars. The light curves of $\sim$100 million stars, monitored for 6.7 years (from July 1996 to February 2003), have been analysed to search for the main signature of RCB stars, large and rapid drops in luminosity. Follow-up spectroscopy has been used to confirm the photometric candidates. We have discovered 14 new RCB stars, all in the direction of the Galactic Bulge, bringing the total number of confirmed Galactic RCB stars to about 51. After reddening correction, the colours and absolute magnitudes of at least 9 of the stars are similar to those of Magellanic RCB stars. This suggests that these stars are in fact located in the Galactic Bulge, making them the first RCB stars discovered in the Bulge. The localisation of the 5 remaining RCBs is more uncertain: 4 are either located behind the Bulge at an estimated maximum distance of 14 kpc or have an unusual thick circumstellar shell; the other is a DY Per RCB which may be located in the Bulge, even if it is fainter than the known Magellanic DY Per. From the small scale height found using the 9 new Bulge RCBs, $61
description: 20 pages, 26 figures, Accepted in A&A
Defects in the 3-dimensional toric code model form a braided fusion 2-category
Creators: name: Kong, Liang
name: Tian, Yin
name: Zhang, Zhi-Hao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Theory (hep-th)
subject: Category Theory (math.CT)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: It was well known that there are $e$-particles and $m$-strings in the 3-dimensional (spatial dimension) toric code model, which realizes the 3-dimensional $\mathbb{Z}_2$ topological order. Recent mathematical result, however, shows that there are additional string-like topological defects in the 3-dimensional $\mathbb{Z}_2$ topological order. In this work, we construct all topological defects of codimension 2 and higher, and show that they form a braided fusion 2-category satisfying a braiding non-degeneracy condition.
description: 30 pages, 29 figures. Comments are welcome
Functionally-fitted energy-preserving methods for solving oscillatory nonlinear Hamiltonian systems
Creators: name: Li, Yu-Wen
name: Wu, Xinyuan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 65L05, 65L06, 65L60, 65P10

description: In the last few decades, numerical simulation for nonlinear oscillators has received a great deal of attention, and many researchers have been concerned with the design and analysis of numerical methods for solving oscillatory problems. In this paper, from the perspective of the continuous finite element method, we propose and analyze new energy-preserving functionally fitted methods, in particular trigonometrically fitted methods of an arbitrarily high order for solving oscillatory nonlinear Hamiltonian systems with a fixed frequency. To implement these new methods in a widespread way, they are transformed into a class of continuous-stage Runge--Kutta methods. This paper is accompanied by numerical experiments on oscillatory Hamiltonian systems such as the FPU problem and nonlinear Schrödinger equation. The numerical results demonstrate the remarkable accuracy and efficiency of our new methods compared with the existing high-order energy-preserving methods in the literature.
description: 24 pages
PATRUL-POST XIZMATI VA JAMOAT TARTIBINI SAQLASH XIZMATLARINING KUCH VA VOSITALARI
Creators: name: Narziyev, Shaxzodbek
name: Sultonov, Oybek
Publisher: name: Zenodo
Year: 2024

description: mazkur maqolada patrul-post  va jamoat tartibini saqlash faoliyatini boshqarish, patrul-post  va jamoat tartibini saqlash faoliyatida qo’llaniladigan kuch va vositalar ularning turlari, qo’llanilish usullari, tartibi PPX vs JTSB naryadlarini tashkil etish shuningdek, patrul-post  va jamoat tartibini saqlash faoliyatini boshqarish nazariyasi haqida ma’lumotlar keltirilgan.
Non-renormalisation Conditions in Type II String Theory and Maximal Supergravity
Creators: name: Green, Michael B.
name: Russo, Jorge G.
name: Vanhove, Pierre
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper considers general features of the derivative expansion of Feynman diagram contributions to the four-graviton scattering amplitude in eleven-dimensional supergravity compactified on a two-torus. These are translated into statements about interactions of the form D^2k R^4 in type II superstring theories, assuming the standard M-theory/string theory duality relationships, which provide powerful constraints on the effective interactions. In the ten-dimensional IIA limit we find that there can be no perturbative contributions beyond k string loops (for k>0). Furthermore, the genus h=k contributions are determined exactly by the one-loop eleven-dimensional supergravity amplitude for all values of k. A plausible interpretation of these observations is that the sum of h-loop Feynman diagrams of maximally extended supergravity is less divergent than might be expected and could be ultraviolet finite in dimensions d < 4 + 6/h -- the same bound as for N=4 Yang--Mills.
description: 30 pages, 4 figures. v3 Some rewording, typos corrected and some references added. v4: Abstract rephrased. More typos corrected. Version to be published
Lexical elicitation: Kinship and natural world
Creators: name: Ovelar, Irma Easty
name: Grabowski, Emily
name: Bossi, Madeline
name: Dabkowski, Maksymilian
name: Drummond, Emily
name: Jarvis, Rebecca
name: Khuu, Phuong
name: Michael, Lev
name: Russell, Katherine
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: gug

description: Some kinship and natural world items, with a focus on nasals/nasalization.
SUL RILEVAMENTO DEGLI EFFETTI DI CORRENTI PARASSITE NEL TRAFERRO
Creators: name: G. SACERDOTI
Publisher: name: INFN Open Access Repository
Year: 1953

description: In una nota precedente (n.1) avevo esaminato l'effetto delle correnti parassite sulla metallizzazione della donut. Ora in questa nota esaminer� come questa perturbazione sia rilevabile direttamente su un circuito elettrico equivalente. Nell'ultima parte della nota esaminer� come in caso di eccitazione sinusoidale si possa anche tener conto delle isteresi del materiale magnetico.
Auditing E-Commerce Platforms for Algorithmically Curated Vaccine Misinformation
Creators: name: Juneja, Prerna
name: Mitra, Tanushree
Publisher: name: arXiv
Year: 2021
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: There is a growing concern that e-commerce platforms are amplifying vaccine-misinformation. To investigate, we conduct two-sets of algorithmic audits for vaccine misinformation on the search and recommendation algorithms of Amazon -- world's leading e-retailer. First, we systematically audit search-results belonging to vaccine-related search-queries without logging into the platform -- unpersonalized audits. We find 10.47% of search-results promote misinformative health products. We also observe ranking-bias, with Amazon ranking misinformative search-results higher than debunking search-results. Next, we analyze the effects of personalization due to account-history, where history is built progressively by performing various real-world user-actions, such as clicking a product. We find evidence of filter-bubble effect in Amazon's recommendations; accounts performing actions on misinformative products are presented with more misinformation compared to accounts performing actions on neutral and debunking products. Interestingly, once user clicks on a misinformative product, homepage recommendations become more contaminated compared to when user shows an intention to buy that product.
ҚАСДДАН ОДАМ ЎЛДИРИШ ЖИНОЯТИНИНГ ТУШУНЧАСИ
Creators: name: Нарзиев, Шахзодбек
name: Олимжонов, Жасурбек
Publisher: name: Zenodo
Year: 2024

description: мазкур мақолада қасддан одам ўлдириш жиноятининг тушунчаси ва унинг ўзига хос хусусиятлари бундан ташкари қасддан одам ўлдириш жиноятларнинг виктимологик профилактикасига доир фаолиятининг ташкилий-хуқуқий асослари, ушбу фаолиятни ташкил этиш тартиби, шунингдек, қасддан одам ўлдириш жиноятларнинг виктимологик профилактикасига доир фаолиятининг хуқуқий асослари, қасддан одам ўлдириш жиноятларнинг виктимологик профилактикаси фаолияти бўйича хорижий давлатлар тажрибаси хамда қасддан одам ўлдириш жиноятларнинг виктимологик профилактикаси фаолиятини такомиллаштириш йўналишлари, шунингдек, юкорида келтириб ўтилган жиҳатларидан фойдаланган холда ушбу фаолиятни такомилаштириш йуналишлари ёритиб ўтилди.
Charge and spin dynamics in a two dimensional electron gas
Creators: name: Pugzlys, A
name: Rizo, P J
name: Ivanin, K
name: Slachter, A
name: Reuter, D
name: Wieck, A D
name: van der Wal, C H
name: van Loosdrecht, P H M
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A number of time resolved optical experiments probing and controlling the spin and charge dynamics of the high mobility two-dimensional electron gas in a GaAs/AlGaAs heterojunction are discussed. These include time resolved reflectivity, luminescence, transient grating, magneto-optical Kerr effect, and electro-optical Kerr effect experiments. The optical experiments provide information on the carrier lifetimes and spin dephasing times, as well as on the carrier diffusion coefficient which directly gives the charge mobility. A combination of the two types of Kerr experiments, shows to be useful in extracting both the carrier lifetimes and spin dephasing times in a single experiment.
Anisotropy of Electrical Transport and Superconductivity in Metal Chains of Nb2Se3
Creators: name: Hu, Rongwei
name: Lauritch-Kullas, K.
name: Brian, J. O
name: Mitrovic, V. F.
name: Petrovic, C.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: In this work we have shown bulk superconductivity and studied the anisotropy in both the normal and superconducting states in quasi-1D conductor Nb2Se3. Electron - electron Umklapp scattering dominates electronic transport along the direction of Nb metal chains as well as perpendicular to it. The superconducting state is rather anisotropic with possible multi - band features.
description: 5 pages, 5 figures
Statistical guided-waves-based SHM via stochastic non-parametric time series models
Creators: name: Amer, Ahmad
name: Kopsaftopoulos, Fotis
Publisher: name: arXiv
Year: 2021
Subjects: subject: Signal Processing (eess.SP)
subject: Applications (stat.AP)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Damage detection in active-sensing, guided-waves-based Structural Health Monitoring (SHM) has evolved through multiple eras of development during the past decades. Nevertheless, there still exists a number of challenges facing the current state-of-the-art approaches, both in the industry as well as in research and development, including low damage sensitivity, lack of robustness to uncertainties, need for user-defined thresholds, and non-uniform response across a sensor network. In this work, a novel statistical framework is proposed for active-sensing SHM based on the use of ultrasonic guided waves. This framework is based on stochastic non-parametric time series models and their corresponding statistical properties in order to readily provide healthy confidence bounds and enable accurate and robust damage detection via the use of appropriate statistical decision making tests. Three such methods and corresponding statistical quantities (test statistics) along with decision making schemes are formulated and experimentally assessed via the use of three coupons with different levels of complexity: an Al plate with a growing notch, a Carbon fiber-reinforced plastic (CFRP) plate with added weights to simulate local damages, and the CFRP panel used in the Open Guided Waves project [1], all fitted with piezoelectric transducers and a pitch-catch configuration. The performance of the proposed methods is compared to that of state-of-the-art time-domain damage indices (DIs). The results demonstrate the increased sensitivity and robustness of the proposed methods, with better tracking capability of damage evolution compared to conventional approaches, even for damage-non-intersecting actuator-sensor paths. Overall, the proposed statistical methods exhibit greater damage sensitivity across different components, with enhanced robustness to uncertainty, as well as user-friendly application.
description: 37 pages, 21 figures
Integrating Genome3D structural annotations and predicted secondary structures in InterPro 7
Creators: name: Paysan-Lafosse, Typhaine
name: Blum, Matthias
name: Matloob Qureshi
name: Salazar, Gustavo A.
name: C Orengo
name: Sillitoe, Ian
name: Finn, Robert D.
Publisher: name: F1000 Research Limited
Year: 2019

description: Genome3D provides consensus structural annotations and 3D models for sequences from 10 model organisms, including human. These data are generated by several UK based resources that together form the Genome3D consortium: SCOP, CATH, SUPERFAMILY, Gene3D, FUGUE, pDomTHREADER and PHYRE. InterPro, meanwhile, provides functional analysis of proteins by classifying them into homologous superfamilies, families, predicting domains, repeats and important sites based on data from 14 member databases.
Until now, InterPro has only presented CATH-Gene3D and SUPERFAMILY annotations from Genome3D. The Genome3D resources Fugue, PHYRE, pDomTHREADER have not historically been integrated in InterPro as they are too computationally expensive to calculate over the entire UniProt database. However, the tools underpinning these resources exploit sensitive threading-based techniques, and as such their coverage of a given genome is greater than that of either SUPERFAMILY/CATH-Gene3D. In order to enhance the coverage of InterPro, we have integrated the predicted secondary structures from the aforementioned resources dynamically from Genome3D at different levels: InterPro entry, UniProt accession and PDB structure. This work has been conducted in collaboration between InterPro and Genome3D developers, using API calls underpinned by the mapping between InterPro entry to UniProt accessions and UniProt accessions to PDB structures.
Characterization of Bacillus and Gordonia bacteriophages Zorp and Fireball as food and wastewater biocontrol agents
Creators: name: Wei, Michael Kina
name: Lee, Diane
name: Ly, Andrew
name: Patel, Neel
name: Ngo, Ryan
name: Wu, Samuel
name: Parker, Jordan Moberg
name: Freise, Amanda C.
Publisher: name: F1000 Research Limited
Year: 2019

description: Bacillus contaminations represent a growing concern for the food industry that lends urgency to the development of alternative biocontrol strategies. Similarly, the over-proliferation of Gordonia populations imposes significant operational costs in activated sludge wastewater treatment. One alternative biocontrol strategy involves the use of bacteria-specific viruses called bacteriophages. The novel Bacillus phage Zorp was isolated from soil and examined for its viability within various environmental conditions common to the food industry, including temperatures ranging from 25-42°C and desiccation for periods up to 1 week. Exposure of Zorp to these conditions revealed high innate resistance to each stressor with insignificant changes in plaque morphology and titer as tested through ANOVA. Difficulties in sequencing Zorp’s genome prompted a switch to bioinformatic analysis of the Gordonia phage Fireball to characterize genomic evidence of phage adaptation to host-derived challenges. Genomic annotation of Fireball revealed 93 protein-coding genes including an immunity repressor, excisionase, and two integrases suggesting a temperate life cycle. Fireball possesses a DNA methylase that shares homology with those of Rhodococcus bacteria but not Gordonia bacteria or other phages, suggesting a possible unique HGT event that aids Fireball in overcoming host restriction-modification systems and adapting to host selective pressures. Together, these results suggest Zorp’s potential applicability within common food industrial settings and Fireball’s adaptability to bacterial defense systems. These phage characteristics are required for suitable biocontrol agents for resistant Bacillus and Gordonia populations within the food and wastewater treatment industry, respectively.
Search for Gravitational Waves in the CMB After WMAP3: Foreground Confusion and The Optimal Frequency Coverage for Foreground Minimization
Creators: name: Amblard, Alexandre
name: Cooray, Asantha
name: Kaplinghat, Manoj
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: B-modes of Cosmic Microwave Background (CMB) polarization can be created by a primordial gravitational wave background. If this background was created by Inflation, then the amplitude of the polarization signal is proportional the energy density of the universe during inflation. The primordial signal will be contaminated by polarized foregrounds including dust and synchrotron emission within the galaxy. In light of the WMAP polarization maps, we consider the ability of several hypothetical CMB polarization experiments to separate primordial CMB B-mode signal from galactic foregrounds. We also study the optimization of a CMB experiment with a fixed number of detectors in the focal plane to determine how the detectors should be distributed in different frequency bands to minimize foreground confusion. We show that the optimal configuration requires observations in at least 5 channels spread over the frequency range between 30 GHz and 500 GHz with substantial coverage around 150 GHz. If a low-resolution space experiment using 1000 detectors to reach a noise level of about 1000 nK$^2$ concentrates on roughly 66% of the sky with the least foreground contamination the minimum detectable level of the tensor-to-scalar ratio would be about 0.002 at the 99% confidence level for an optical depth of 0.1.
description: 13 pages, 8 figures, replaced to match the accepted version in PRD
Food and environmental biocontrol implications of Bacillus Phage Phalcolm and Gordonia Phage Tanis
Creators: name: Thai, Jasmine
name: Cader, Isa Abdul
name: Barger, Nathan
name: Panggabean, Anastasya
name: Phung, Malcolm
name: Ngo, Ryan
name: Krisanavane Reddi
name: Freise, Amanda C.
Publisher: name: F1000 Research Limited
Year: 2019

description: Bacillus cereus is a pathogenic microbe that poses a serious threat to public health, having caused over 36,000 estimated foodborne illness cases in Canada during 2006. Equally important, although only isolated cases of opportunistic Gordonia infections have been reported, these numbers can rise if these species are not managed after their use in bioremediation. To address these issues, novel Bacillus and Gordonia bacteriophages, Phalcolm and Tanis respectively, have been characterized for their potential as biocontrol agents. Incorporation of Phalcolm and Bacillus subtilis in milk assays showed an increase in phage-mediated lysis compared to those without milk. The noticeable trend implies potential of Phalcolm as a biocontrol agent given further experimentation. However, difficulties with sequencing Phalcolm’s genome led to a shift to bioinformatics analysis of Gordonia phage Tanis’ lytic genes to determine its potential candidacy. GC content and phylogenetic trees showed a lack of synteny between bacterial organisms, suggesting absence of horizontal gene transfer of lysis genes. Interestingly, heat map and dot plot analyses confirmed a novel lytic cassette, as Tanis showed strong homology of lysis genes within DJ clustered phages, yet shared little to no homology with ones outside of cluster DJ. Overall, novel phages Phalcolm and Tanis demonstrated potential as biocontrol agents, but further experimentation is required to verify their efficacy in eliminating B. cereus and opportunistic Gordonia species.
A new isoflavonoid derivative, evaluation of the antioxidant capacity and phenolic content of Genista lobelii DC
Creators: name: Boukaabache, Rabia
name: Kerkatou, Wafa
name: Bensouici, Chaouki
name: Benayache, Fadila
name: Boumaza, Ouahiba
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Plant Biology

description: The phytochemical investigation of both chloroform and ethyl acetate extracts of Genista lobelii DC from an Algerian endemic plant led to the isolation of a new isoflavonoid Aspalathoidin compound (1) and nine known compounds (laburnetin, isokaempferide, retamasin B, ephedrodin, sakuretin, isoprunetin, genistein −7-O-β-glucoside, derrone-4′-O-methyl ether and eriodictyol-7,3′-dimethylether). Twelve phenolic compounds were identified in ethyl acetate and n-butanol extracts through a qualitative investigation of phenolic compounds using HPLC. Finally, both extracts were estimated for their phenolic and flavonoid contents as well as the evaluation of their antioxidant activity using five different assays DPPH, CUPRAC, ABTS, GOR and the sun protection factor SPF was determined as an index of the photoprotective capacity of the G.lobelii DC extracts. The extract of chloroform and ethyl acetate has good antioxidant and includes significant levels of phenolic and flavonoid components.
Coulombically-stabilized oxygen hole polarons enable fully reversible oxygen redox
Creators: name: Abate, Iwnetim I.
name: Pemmaraju, C. Das
name: Kim, Se Young
name: Hsu, Kuan H.
name: Sainio, Sami
name: Moritz, Brian
name: Vinson, John
name: Toney, Michael F.
name: Yang, Wanli
name: Gent, William E.
name: Devereaux, Thomas P.
name: Nazar, Linda F.
name: Chueh, William C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Stabilizing high-valent redox couples and exotic electronic states necessitate an understanding of the stabilization mechanism. In oxides, whether they are being considered for energy storage or computing, highly oxidized oxide-anion species rehybridize to form short covalent bonds and are related to significant local structural distortions. In intercalation oxide electrodes for batteries, while such reorganization partially stabilizes oxygen redox, it also gives rise to substantial hysteresis. In this work, we investigate oxygen redox in layered Na2-XMn3O7, a positive electrode material with ordered Mn vacancies. We show that coulombic interactions between oxidized oxide-anions and the interlayer Na vacancies can disfavor rehybridization and stabilize hole polarons on oxygen at 4.2 V vs. Na/Na+. These coulombic interactions provide thermodynamic energy saving as large as O-O covalent bonding and enable ~ 40 mV voltage hysteresis over multiple electrochemical cycles with negligible voltage fade. Our results establish a complete picture of redox energetics by highlighting the role of coulombic interactions across several atomic distances and suggest avenues to stabilize highly oxidized oxygen for applications in energy storage and beyond.
description: 19 pages, 4 Figures, Research Article
Relating Leptogenesis to Low Energy CP Violation
Creators: name: Chen, Mu-Chun
name: Mahanthappa, K. T.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In the minimal left-right symmetric model with spontaneous CP violation, there are only two intrinsic CP violating phases to account for all CP violation in both the quark and lepton sectors. In addition, the left-and right-handed Majorana mass terms for the neutrinos are proportional to each other due to the parity in the model. This is thus a very constrained framework, making the existence of correlations among the CP violation in leptogenesis, neutrino oscillation and neutrinoless double beta decay possible.
description: 4 pages; to appear in Proceedings of SUSY06, the 14th International Conference on Supersymmetry and the Unification of Fundamental Interactions, UC Irvine, California, 12-17 June 2006
Insecticidal activity of extracts of handroanthus impetiginosus on Plutella xylostella (Lepidoptera: plutellidae) larvae
Creators: name: Silva, Andriely B.
name: Montagnini, Daniel L.
name: Katchborian-Neto, Albert
name: Andrade, João V.
name: Manuquian, Hallana A.
name: Cavallari, Pedro S. S. R.
name: Almeida, Samarah G.
name: Barbosa, Enes P.
name: Cunha, Wilson R.
name: Soares, Marisi G.
name: Santos, Mario F. C.
name: Silva, Márcio L. A.
name: Vacari, Alessandra M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Plant Biology

description: Plutella xylostella is considered the main pest of cabbage in Brazil and the world, causing damage of up to 100%. Thus, this study evaluated the insecticidal activity of extracts obtained from the fruits, seeds, bark, leaves, and flowers of Handroanthus impetiginosus against the diamondback moth, P. xylostella larvae. The seed extract showed the highest mortality (97.0%) compared to the control treatment. The LC50 values indicated that the seed and flower extracts (0.01003 and 0.01288 mg/L respectively) assumed the highest toxicity to P. xylostella larvae after 24 h of exposure. The results of this study indicated that the seeds extract is the most promising toxic extract, with measured mortality of approximately 97.0% for P. xylostella larvae after 144 h of exposure in kale plants. Seed extract showed the best insecticidal activity. Thus, this extract can be applied to develop an insecticide based on H. impetiginosus seed.
Sign of the times: celebrity, truth, and legal storytelling
Creators: name: Ramshaw, Sara Lynne
Publisher: name: University of British Columbia
Year: 2009

description: Contemporary Western legal storytelling relies heavily on images and discourses in popular culture to secure meaning and give credibility to certain legal arguments. This thesis focuses on the legal stories told in the trial of a celebrity in Western society. As a system of meaning, the celebrity sign operates on the levels of signification and affect. The ambiguous semiotic power of the celebrity sign forces an examination by the legal audience regarding the "real" nature of the celebrity. Reality and truth are seen to emanate from this private self. Moreover, the affective power of the celebrity sign guarantees that, at times, emotion will dictate how much credibility will be given to particular celebrity legal stories and what stories will be considered plausible by a jury. In the trial of a celebrity "Other" — that is, one of the celebrated few who defies the white male norm -- celebrity legal storytelling looks towards issues of race, class, and gender, in addition to celebrity, in order to secure meaning and effect credibility. The aesthetic acceptance of the celebrity "Other," along with discourses of authenticity in Western society, work to shape what is considered credible and true in a courtroom. These factors place limits on the semiotic and affective power of the celebrity "Other" and, thus, on what celebrity legal stories will be accepted as truth in the courtroom. Looking specifically at the 1949 acquittal of jazz singer, Billie Holiday, and the 1994 acquittal/partial conviction of gangsta rapper, Tupac Shakur, this thesis will demonstrate the ways in which law, culture, race, gender, class, and the celebrity intersect in the Western mass media and how this intersection affects legal process and the trial tactics utilized in the trial of a celebrity "Other."
Strong Dynamo Action in Rapidly Rotating Suns
Creators: name: Brown, Benjamin P.
name: Browning, Matthew K.
name: Brun, Allan Sacha
name: Miesch, Mark S.
name: Nelson, Nicholas J.
name: Toomre, Juri
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Stellar dynamos are driven by complex couplings between rotation and turbulent convection, which drive global-scale flows and build and rebuild stellar magnetic fields. When stars like our sun are young, they rotate much more rapidly than the current solar rate. Observations generally indicate that more rapid rotation is correlated with stronger magnetic activity and perhaps more effective dynamo action. Here we examine the effects of more rapid rotation on dynamo action in a star like our sun. We find that vigorous dynamo action is realized, with magnetic field generated throughout the bulk of the convection zone. These simulations do not possess a penetrative tachocline of shear where global-scale fields are thought to be organized in our sun, but despite this we find strikingly ordered fields, much like sea-snakes of toroidal field, which are organized on global scales. We believe this to be a novel finding.
description: 8 pages, 4 figs. Published in conference proceedings "Unsolved Problems in Stellar Physics", held July 2-6 2007 Cambridge, England
Grammatical elicitation: Verbal agreement, active-stative system, ditransitives
Creators: name: Ovelar, Irma Easty
name: Drummond, Emily
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2021
Subjects: subject: gug

description: Verbal agreement paradigms, focusing on portmanteau agreement markers, active vs. stative intransitives, and agreement in ditransitives.
Dynamics of a two scalar field cosmological model with phantom terms
Creators: name: Paliathanasis, Andronikos
name: Leon, Genly
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We perform a detailed analysis on the dynamics of a Chiral-like cosmological model where the scalar fields can have negative kinetic terms. In particular, we study the asymptotic dynamics for the gravitational field equations for four different models in a spatially flat Friedmann--Lema\^ıtre--Robertson--Walker background space. When one of the scalar fields is phantom, we calculated that the cosmological fluid can evolves such that the parameter for the equation of state crosses twice the phantom divide line without the appearance of ghosts. Moreover, the cosmological viability of these four models is discussed.
description: 16 pages, 11 compound figures
Frenkel Exciton Model of Ultrafast Excited State Dynamics in AT DNA Double Helices
Creators: name: Bittner, Eric R.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Recent ultrafast experiments have implicated intrachain base-stacking rather than base-pairing as the crucial factor in determining the fate and transport of photoexcited species in DNA chains. An important issue that has emerged concerns whether or not a Frenkel excitons is sufficient one needs charge-transfer states to fully account for the dynamics. In we present an $SU(2)\otimes SU(2)$ lattice model which incorporates both intrachain and interchain electronic interactions to study the quantum mechanical evolution of an initial excitonic state placed on either the adenosine or thymidine side of a model B DNA poly(dA).poly(dT) duplex. Our calculations indicate that over several hundred femtoseconds, the adenosine exciton remains a cohesive excitonic wave packet on the adenosine side of the chain where as the thymidine exciton rapidly decomposes into mobile electron/hole pairs along the thymidine side of the chain. In both cases, the very little transfer to the other chain is seen over the time-scale of our calculations. We attribute the difference in these dynamics to the roughly 4:1 ratio of hole vs. electron mobility along the thymidine chain. We also show that this difference is is robust even when structural fluctuations are introduced in the form of static off-diagonal disorder.
Non-diffracting states at exceptional points
Creators: name: Yuce, Cem
name: Ramezani, Hamidreza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Other Condensed Matter (cond-mat.other)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We propose to use exceptional points (EPs) to construct diffraction-free beam propagation and localized power oscillation in lattices. Specifically, here we propose two systems to utilize EPs for diffraction-free beam propagation, one in synthetic gauge lattices and the other one, in unidirectionally coupled resonators where each resonator individually is capable of creating orbital angular momentum beams (OAM). In the second system, we introduce the concept of robust and tunable OAM beam propagation in discrete lattices. We show that one can create robust OAM beams in an arbitrary number of sites of a photonic lattice. Furthermore, we report power oscillation at the EP of a non-Hermitian lattice. Our study widens the study and application of EPs in different photonic systems including the OAM beams and their associated dynamics in discrete lattices.
WASP-5b: a dense, very-hot Jupiter transiting a 12th-mag Southern-hemisphere star
Creators: name: Anderson, D. R.
name: Gillon, M.
name: Hellier, C.
name: Maxted, P. F. L.
name: Pepe, F.
name: Queloz, D.
name: Wilson, D. M.
name: Cameron, A. Collier
name: Smalley, B.
name: Lister, T. A.
name: Bentley, S. J.
name: Blecha, A.
name: Christian, D. J.
name: Enoch, B.
name: Hebb, L.
name: Horne, K.
name: Irwin, J.
name: Joshi, Y. C.
name: Kane, S. R.
name: Marmier, M.
name: Mayor, M.
name: Parley, N. R.
name: Pollacco, D. L.
name: Pont, F.
name: Ryans, R.
name: Ségransan, D.
name: Skillen, I.
name: Street, R. A.
name: Udry, S.
name: West, R. G.
name: Wheatley, P. J.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the discovery of WASP-5b, a Jupiter-mass planet orbiting a 12th-mag G-type star in the Southern hemisphere. The 1.6-d orbital period places WASP-5b in the class of very-hot Jupiters and leads to a predicted equilibrium temperature of 1750 K. WASP-5b is the densest of any known Jovian-mass planet, being a factor seven denser than TrES-4, which is subject to similar stellar insolation, and a factor three denser than WASP-4b, which has a similar orbital period. We present transit photometry and radial-velocity measurements of WASP-5 (= USNO-B1 0487-0799749), from which we derive the mass, radius and density of the planet: M_P = 1.58 +0.13 -0.08 M_J, R_P = 1.090 +0.094 -0.058 R_J and Rho_P = 1.22 +0.19 -0.24 Rho_J. The orbital period is P = 1.6284296 +0.0000048 -0.0000037 d and the mid-transit epoch is T_C (HJD) = 2454375.62466 +0.00026 -0.00025.
description: 4 pages, 4 figures, 4 tables, submitted to MNRAS Letters. Corrected vsini value and therefore age estimate. Added reference. Corrected error bars in Fig 4. Changed some wording
REEEM-D7.1_REEEM pathways - Stakeholder Interaction Portal
Creators: name: REEEM Project
Publisher: name: Zenodo
Year: 2019

description: This report is a brief description of REEEMpathways, the open source tool for stakeholder engagement and pathway diagnostics in the EU Horizon 2020 project REEEM (http://www.reeem.org/). It constitutes the formal deliverables D7.1 and D7.2 of the project.
Screening of the compositions of essential oils and volatiles of Perovskia abrotanoides Karel. along with antioxidant, antibacterial and cytotoxic impacts of its methanol extract
Creators: name: Kianasab, Mohammad Reza
name: Mohammadhosseini, Majid
name: Nekoei, Mehdi
name: Mahdavi, Behnam
name: Baheri, Tahmineh
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Medicine
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Plant Biology

description: In the present report, a combination of classical and advanced methods, namely classical hydrodistillation (HD) and solvent free microwave extraction (SFME) have been used for the extraction of essential oils from flowers, leaves and stems of Perovskia abrotanoides Karel. as an endemic plant to Golestan Province, Iran. The volatile fractions from the same plant organs have been separated using a solid phase microextraction (SPME) fibre and characterised using a GC/MS apparatus. Moreover, oxygenated monoterpenes, for example, 1,8-cineole and borneol were found as the most constituent components of the majority of the characterised profiles. Accordingly, for flowers, leaves and stems of P. abrotanoides Karel., the relevant quantities were HD: 12.0 and 12.4, 24.0 and 17.9, 12.9 and 16.8%; SFME: 15.6 and 15.2, 20.5 and 16.2, 13.5 and 14.7%; SPME: 20.9 and 5.2, 25.5 and 9.9, 26.4 and 8.5%, respectively. Total phenolic content (TPC: 52.02 mg GAE/g), total flavonoids content (TFC: 98.46 mg QE/g) as well as antioxidant and antibacterial effects of the extract from the aerial parts of this species have been also evaluated. The cytotoxicity of Perovskia abrotanoides Karel. MeOH extract has been tested against HUVECs cell line. Moreover, our study on the in vitro anti-bladder carcinoma demonstrated that the plant extract reduced the viability of malignant bladder cell line, in a dose dependent way.
Constraining a bulk viscous matter-dominated cosmological model using SNe Ia, CMB and LSS
Creators: name: Avelino, Arturo
name: Nucamendi, U.
name: Guzmán, F. S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present and constrain a cosmological model which component is a pressureless fluid with bulk viscosity as an explanation for the present accelerated expansion of the universe. We study the particular model of a constant bulk viscosity coefficient ζ_m. The possible values of ζ_m are constrained using the cosmological tests of SNe Ia Gold 2006 sample, the CMB shift parameter R from the three-year WMAP observations, the Baryon Acoustic Oscillation (BAO) peak A from the Sloan Digital Sky Survey (SDSS) and the Second Law of Thermodynamics (SLT). It was found that this model is in agreement with the SLT using only the SNe Ia test. However when the model is submitted to the three cosmological tests together (SNe+CMB+BAO) the results are: 1.- the model violates the SLT, 2.- predicts a value of H_0 \approx 53 km sec^{-1} Mpc^{-1} for the Hubble constant, and 3.- we obtain a bad fit to data with a χ^2_{min} \approx 400 (χ^2_{d.o.f.} \approx 2.2). These results indicate that this model is ruled out by the observations.
description: 4 pages, 1 figure. Work presented in the XI Mexican Workshop on Particles and Fields, Tuxtla Gutierrez, Mexico, nov 7-12, 2007. Submitted to AIP Conference Proceedings of this conference
The academic career in physics as a "deal": Choosing physics within a gendered power structure and excellence as an extra hurdle for women
Creators: name: Eran-Jona, Meytal
name: Nir, Yosef
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics Education (physics.ed-ph)
subject: FOS: Physical sciences

description: The absence of women among academic staff in physics is in the focus of our research. To explore the causes of this gender imbalance, we conducted a nationwide representative survey among Ph.D. students and interviews with Ph.D. students and postdoctoral fellows. Studying both context factors and agency, we reveal the multiple and hidden ways in which gender operates as a power structure, putting up barriers to women's academic careers. This latent power structure influences women's decision-making and experiences in several ways. In the academic field, it produces unequal competition in a male dominated playground. In the social sphere, choosing a demanding academic career is seen as disrupting gender order. Within the family, women carry a greater burden of family work and give precedence to their partner's career and preferences. Within this social structure, women who decide to follow an academic career feel that they must excel. The demand for excellence acts as an invisible barrier within the gender power structure that prevents talented women from pursuing an academic career in physics.
description: 13 pages
Potent ROS inhibitors from Zanthoxylum armatumDC of Nepali origin
Creators: name: Baral, Janaki
name: Shrestha, Dipesh
name: Devkota, Hari Prasad
name: Adhikari, Achyut
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biophysics
subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Cancer
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: A bioassay-guided isolation on the plant Zanthoxylum armatum DC yielded compounds tambulin (1), and prudomestin (2), from ethyl acetate fraction which showed the highest ROS inhibiting activity (IC50 = 17.8 ± 1.1 µg/mL). Structure elucidation of pure compounds was done using mass and NMR spectroscopic techniques. Compounds 1 and 2 revealed potent ROS inhibition with IC50 = 7.5 ± 0.3 and 1.5 ± 0.3 µg/mL, respectively, as compared to standard ibuprofen (IC50 = 11.2 ± 1.9 µg/mL). Likewise, both compounds 1 and 2 showed potent antioxidant activity with IC50 = 32.65 ± 0.31 and 26.96 ± 0.19 µg/mL, respectively. In vitro studies were supported by molecular docking and drug-likeliness properties. In silico studies of 1 and 2 with cyclooxygenase-2 (COX-2) showed perfect binding affinity with binding energies of −8.4 and −8.6 kcal/mol, respectively, comparable to standard ibuprofen (−7.7 kcal/mol). Drug likeness and ADMET showed higher gastrointestinal absorption of 1 and 2 and no toxic impact.
A multiple scales approach to crack front waves
Creators: name: Norris, Andrew N.
name: Abrahams, I. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Perturbation of a propagating crack with a straight edge is solved using the method of matched asymptotic expansions (MAE). This provides a simplified analysis in which the inner and outer solutions are governed by distinct mechanics. The inner solution contains the explicit perturbation and is governed by a quasi-static equation. The outer solution determines the radiation of energy away from the tip, and requires solving dynamic equations in the unperturbed configuration. The outer and inner expansions are matched via the small parameter L/l defined by the disparate length scales: the crack perturbation length L and the outer length scale l associated with the loading. The method is first illustrated for a scalar crack model and then applied to the elastodynamic mode I problem. The dispersion relation for crack front waves is found by requiring that the energy release rate is unaltered under perturbation. The wave speed is calculated as a function of the nondimensional parameter kl where k is the crack front wavenumber, and dispersive properties of the crack front wave speed are described for the first time. The example problems considered here demonstrate that the potential of using MAE for moving boundary value problems with multiple scales.
description: 25 pages, 5 figures
Recent advances on quantum key distribution overcoming the linear secret key capacity bound
Creators: name: Mao, Yingqiu
name: Zeng, Pei
name: Chen, Teng-Yun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A crucial goal for quantum key distribution (QKD) is to transmit unconditionally secure keys over long distances. Previous studies show that the key rate of point-to-point QKD is limited by a secret key rate capacity bound, and higher key rates would require quantum repeaters. In 2018, the seminal twin-field (TF) QKD protocol was proposed to provide a remarkable solution to overcoming the linear secret key capacity bound. This article presents an up-to-date survey on recent developments in this area, including the security proofs of phase-matching QKD and other TF-QKD type protocols, the theoretical examinations of these protocols under realistic conditions, and the recent experimental demonstrations.
description: 10 figures, 1 table, 24 pages
Mareva injunction and Japanese provisional remedy
Creators: name: Ikeda, Yoshifumi
Publisher: name: University of British Columbia
Year: 2009

description: Private rights are enforced by the powers of the state where an obligee fails to comply with a court order. However, there is a timelag between the time the parties recognize there is a dispute and the time a court order resolving the dispute is rendered. Therefore, it is necessary to prevent the obligee from changing its position to the detriment of the obligor during that period. In a pecuniary claim this may be achieved by freezing a debtor's assets. On the other hand, it is required that a debtor continue his business and ordinary life. The world's various legal systems have responded to these two, oftentimes conflicting requirements in a number of ways. Two basic mechanisms have been invoked: a remedy in rem, which is an order directly affecting assets and a remedy in personam, which is an order enforced by threat of imprisonment. This thesis attempts to analyze the Mareva injunction in England and Canada, which is an injunction issued in respect of a pecuniary claim to prevent a defendant from disposing of his assets. The Mareva injunction is compared with the Japanese provisional remedy. Through this analysis, this thesis brings to light the merits and demerits of both the Mareva injunction and the Japanese provisional remedy from the point of view of how effectively an order succeeds in freezing a defendant's assets. This thesis also suggests a new law which may improve current practices in Japan as to provisional remedies.