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Journal articles on the topic 'The Hour of the Star'

Author: Grafiati

Published: 4 June 2021

Last updated: 10 February 2022

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1

Lispector, Clarice. "From The Hour of the Star." Review: Literature and Arts of the Americas 49, no. 1-2 (2016): 90–93. http://dx.doi.org/10.1080/08905762.2016.1256708.

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2

Williams, Claire. "The star of the hour: the Lispector industry." Journal of Romance Studies 5, no. 3 (2005): 115–22. http://dx.doi.org/10.3828/jrs.5.3.115.

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3

Lebach, D. E., M. I. Ratner, I. I. Shapiro, et al. "VLBI Imaging and Astrometry of the RS CVn Binary Star IM Pegasi." Symposium - International Astronomical Union 205 (2001): 318–21. http://dx.doi.org/10.1017/s0074180900221359.

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We have made 3.6 cm VLBI observations of the RS CVn binary star IM Pegasi (HR 8703) approximately four times per year since 1997 in support of the NASA/Stanford Relativity Gyroscope Experiment (Gravity Probe B). Phase-referenced maps reveal structural changes in the radio emission of the star on hour time scales during several of the sessions. Analyses of the VLBI phase delays with a Kalman-filter estimator reveal submilliarcsecond motions of the radio centroid of the star on hour and even subhour time scales. The observed structural changes and centroid motions often coincide with rapid chang

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4

Dong-Ming, Li, Wang Hong-Qi, Zhao Gang, Wang Ze-Zhi, and Wang Rui. "Modernization of Chinese Photoelectric Astrolabes and Improvement of Optical Reference System." Symposium - International Astronomical Union 141 (1990): 519–20. http://dx.doi.org/10.1017/s0074180900087507.

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The features of the astrolabe are that:(1) a span of 6 hour of R.A. of star positions can be tied in a group of observation of 2 hours, all-night observation can cover more than half of the sky, and(2) the declination system can be set up with high precision without the need of a precise circle (Li 1987).

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5

Yao, Bao-an, Jian-hua Tong, and Chun-sheng Zhang. "Differential Photometry of the Suspected Two-hour Variable UV-bright Star K1082 in M15." Publications of the Astronomical Society of Australia 9, no. 2 (1991): 291–92. http://dx.doi.org/10.1017/s132335800002419x.

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6

Pan, H. C., and C. Jordan. "X-ray Variability of the Flare Star CC Eri." International Astronomical Union Colloquium 151 (1995): 170. http://dx.doi.org/10.1017/s025292110003493x.

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The flare/spotted spectroscopic binary star CC Eri (HD 16157) was observed in the periods 1990 July 9-11 and 1992 January 26-27 with the ROSAT PSPC detector (Pan and Jordan 1995). These high quality data give the first information on the temporal and spectral variability of CC Eri in the X-ray energy band.During the ROSAT observations the X-ray intensity of the source is variable on timescales from a few minutes to several hours. The X-ray luminosity is in the range 2.5 – 6.8 × 1029 erg s−1, which is similar to values found from previous measurements with the Einstein IPC and EXOSAT LE. On 199

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7

Zhang, Mengzi, and Erik S. Runkle. "Regulating Flowering and Extension Growth of Poinsettia Using Red and Far-red Light-emitting Diodes for End-of-day Lighting." HortScience 54, no. 2 (2019): 323–27. http://dx.doi.org/10.21273/hortsci13630-18.

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Manipulating light quality is a potential alternative method of regulating plant height in the commercial production of ornamental crops. In particular, end-of-day (EOD) lighting with a high red (R; 600–700 nm) to far-red (FR; 700–800 nm) ratio (R:FR) can suppress extension growth, whereas a low R:FR can promote it. We investigated the effects of the R:FR and duration of EOD lighting in regulating extension growth and flowering of two poinsettia cultivars, White Glitter and Marble Star. Plants were grown at 20 °C under 9-hour days with or without EOD lighting provided by two types of light-emi

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8

Alves Araújo, Gilberto, Eliene Rodrigues Sousa, and Raquel Da Silva Lopes. "The Hour of the Star Through Media Lenses: A Tribute to Clarice Lispector (1920-2020)." Lingüística y Literatura 42, no. 79 (2021): 314–35. http://dx.doi.org/10.17533/udea.lyl.n79a17.

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The criticisms of Clarice Lispector’s The Hour of the Star (1977) were analyzed by (re) evaluating its relevance and the legacy of its author. After a critical review of the texts in popular publications, it was found that, in Brazil, the debates about the novel were centered between explicitness and introspection, social commitment and aesthetic sublimation. Foreign critics, on the other hand, raised Lispector’s ability to reach diverse audiences and the readability of her work, including disputes over her prestige as an author among other great writers and the relevance of her compositions.

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9

Buitrago, Diego González, Gagik Tovmassian, Juan Echevarría, et al. "V479 And: CV, LMXB, or Symbiotic?" Proceedings of the International Astronomical Union 7, S281 (2011): 113–16. http://dx.doi.org/10.1017/s1743921312014780.

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AbstractV479 And is a 14.26 hour, close binary system, comprised of a G8-K0 star departing from the main sequence and a compact primary star accreting matter from the donor. The object is an X-ray source, modulated with the orbital period. This, and the presence of an intense He II line, leads us to speculate that the compact object is a magnetic white dwarf. However, we do not find strong constraints on the upper mass limit of the compact object, and we may have a neutron star in a low mass X-ray binary instead of a cataclysmic variable. The orbital period is certainly too short for the donor

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10

Bhavani, Ganga. "Customer’s Expectations of Hospitality Services- A Study on Five Star Hotels in Hyderabad City." Journal of Management and Science 1, no. 4 (2013): 483–89. http://dx.doi.org/10.26524/jms.2013.54.

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This paper analyzes the customer‘s expectations and their satisfaction levels with regard to services offered by five star hotels in Hyderabad city. A structured questionnaire has been used to obtain feedback from the 150 customers of from five star hotels based on convenience sample method. Statistical tools such as Chi-square and Pearson‘s correlation were employed to validate the results. Findings of the study are (i) there is a relationship between expectations of the customers and the services provided by the star hotels (ii) there is a relationship between customers satisfaction with reg

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11

Leonard, Ria T., and Terril A. Nell. "Short-term Pulsing Improves Postharvest Leaf Quality of Cut Oriental Lilies." HortTechnology 14, no. 3 (2004): 405–11. http://dx.doi.org/10.21273/horttech.14.3.0405.

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Several pulse solutions were tested for their effectiveness in preventing leaf senescence on four cut oriental lily cultivars (Lilium sp. `Acapulco', `Kissproof', `Noblesse' and `Star Gazer'). Stems were pulsed 24 hours after harvest for 1 hour, stored in boxes in the dark for 5 days at 3 °C (37.4 °F) then evaluated in postharvest conditions. A new commercial product called Chrysal BVB, a proprietary mixture manufactured by Pokon & Chrysal (Miami) containing cytokinine and gibberellic acids, was the most effective product tested. Chrysal BVB [1 mL·L–1 (0.1%)] prevented leaf chlorosis and a

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12

Goranskij, V. P., та A. V. Kusakin. "Unusual Mode Changes in the δ Scuti Type Variable Star FL Cancri". International Astronomical Union Colloquium 185 (2002): 330–31. http://dx.doi.org/10.1017/s0252921100016389.

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AbstractOn the base of 105 hour photoelectric monitoring, we show that FL Cnc is a multiperiodic δ Set type variable with rapid night-tonight changes of the amplitudes of the periodic components in the Fourier spectra. We observed an event of pulsating frequency doubling on a time scale of a week, which was treated as an azimuthal mode change.

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13

Herner, Kenneth, James Annis, Alyssa Garcia, et al. "The updated DESGW processing pipeline for the third LIGO/VIRGO observing run." EPJ Web of Conferences 245 (2020): 01008. http://dx.doi.org/10.1051/epjconf/202024501008.

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The DESGW group seeks to identify electromagnetic counterparts of gravitational wave events seen by the LIGO-VIRGO network, such as those expected from binary neutron star mergers or neutron star-black hole mergers. DESGW was active throughout the first two LIGO observing seasons, following up several binary black hole mergers and the first binary neutron star merger, GW170817. This work describes the modifications to the observing strategy generation and image processing pipeline between the second (ending in August 2017) and third (beginning in April 2019) LIGO observing seasons. The modific

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14

Ribeiro, Aída Maria Jorge. "Dispute between the phallus and the speech in The hour of the star, by Clarice Lispector." Revista Vértices 15, no. 3 (2013): 83–93. http://dx.doi.org/10.5935/1809-2667.20130031.

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15

Walton, N. A., J. R. Walsh, and S. R. Pottasch. "Imaging and Spectroscopy of Abell 63 (UU SGE)." Symposium - International Astronomical Union 155 (1993): 394. http://dx.doi.org/10.1017/s0074180900171839.

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UU Sge, the eclipsing binary central star (Bond et al, 1978) of the low-surface-brightness planetary nebula (PN) Abell 63, has been observed spectroscopically in the visible throughout its 11.2 hour period and especially during the minimum. A spectral determination of the binary system has been made. The primary hot central star is an ‘O’ type PN nucleus of temperature ≈40,000 K, consistent with the low excitation of the nebular spectrum (e.g. no He ii 4686Å nebular emission detected). From the spectrum at minimum light, the secondary star appears to be a cool dwarf star around G7. Measurement

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16

Kistemaker, J., and Yang Zhengzong. "A New Approach To Traditional Chinese Astronomy." Symposium - International Astronomical Union 133 (1988): 23–28. http://dx.doi.org/10.1017/s0074180900139361.

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We have made a systematic investigation of the traditional Chinese stellar sky, using Yi-Shitong's precise stellar maps at the Amsterdam Zeiss Planetarium, reproducing the positions of pole, hour circles and equator for any epoch between 1000 and 3000 BC at the latitude of Xian.The right ascensions of the 28 boundary hour circles of the traditional lunar lodges, as well as the declinations of the various determinative stars, give insight into the possible original meaning of star names and ages. The four cardinal directions along the celestial equator (α Hya, η Tau, β Aqr and Sco) fit best wit

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17

Fauteux, Brian. "When the dial goes Dylan: ‘premium’ radio, hybrid authenticity and Theme Time Radio Hour." Popular Music 39, no. 3-4 (2020): 652–68. http://dx.doi.org/10.1017/s0261143020000562.

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AbstractThis article explores the construction of hybrid authenticity by Bob Dylan's Theme Time Radio Hour, an XM Radio programme that aired between 2006 and 2009. Dylan's foray into radio presents compelling questions about the role of his star image in advancing a corporate strategy of premium radio that requires subscription access. Through narration and curation, a performed freeform radio format and fragments of radio history, Dylan's celebrity, voice and status as a vehicle for understanding the ‘American song tradition’ are solidified within the context of subscription satellite radio.

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18

Rao, R., J. M. Girart, and D. P. Marrone. "Submillimeter Array Observations of Magnetic Fields in Star Forming Regions." Proceedings of the International Astronomical Union 6, S270 (2010): 103–6. http://dx.doi.org/10.1017/s174392131100024x.

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AbstractThere have been a number of theoretical and computational models which state that magnetic fields play an important role in the process of star formation. Competing theories instead postulate that it is turbulence which is dominant and magnetic fields are weak. The recent installation of a polarimetry system at the Submillimeter Array (SMA) has enabled us to conduct observations that could potentially distinguish between the two theories. Some of the nearby low mass star forming regions show hour-glass shaped magnetic field structures that are consistent with theoretical models in whic

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19

Sullivan, Denis J. "Two-channel Photometry of Cataclysmic Variables." Publications of the Astronomical Society of Australia 9, no. 2 (1991): 302–3. http://dx.doi.org/10.1017/s1323358000024255.

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AbstractHigh-speed photometry of two cataclysmic variables is presented. The observations were made using a two-channel photometric system and the Mt John 0.6 or 1-m telescopes at Lake Tekapo in New Zealand. Both objects have only recently been identified as cataclysmic variables. One of the objects is a high inclination system featuring a deep eclipse in the light curve and a 5.5 hour period, while the other object, despite being relatively faint, clearly exhibits a 2.5 hour period and out of eclipse variability. Simultaneous monitoring of a nearby comparison star for this latter object was p

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20

Vaccaro, T. R., and R. E. Wilson. "Fluorescence and Chromospheric Activity of V471 Tau." International Astronomical Union Colloquium 187 (2002): 167–72. http://dx.doi.org/10.1017/s0252921100001366.

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AbstractThe red dwarf + white dwarf eclipsing binary V471 Tau shows a variable Hα feature that varies from absorption during eclipse to maximum emission during white dwarf transit. In 1998 we obtained simultaneous BVRI photometry and Hα spectroscopy, with thorough phase coverage of the 12.5 hour orbital period. A binary star model was used with our light curve, radial velocity, and Hα data to refine stellar and orbital parameters. Combined absorption-emission profiles were generated by the model and fit to the observations, yielding a red star radius of 0.94R⊙. Orbital inclination 78° is requi

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21

Drake, Stephen A., та Jeffrey L. Linsky. "VLA Observations of Stellar Flares: A 3-Hour Flare of the RS CVN Star λ Andromedae and A 5-Minute Flare of the BP STAR HR 5942". International Astronomical Union Colloquium 104, № 2 (1989): 41–44. http://dx.doi.org/10.1017/s025292110015376x.

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AbstractWe describe high-sensitivity VLA observations of rapidly varying radio emission (‘flares’) from two stars of very different types, one of which (λ And) is a Long-Period RS CVn system, and the other (HR 5942) is a magnetic Bp star. In both cases, however, the physical mechanism producing the radio emission is most likely to be gyrosynchrotron radiation from mildly relativistic, power-law electrons.

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22

Thorstensen, John R., William H. Fenton, Joseph Patterson, Jonathan Kemp, Jules Halpern, and Isabelle Baraffe. "QZ Serpentis: A Dwarf Nova with a 2 Hour Orbital Period and an Anomalously Hot, Bright Secondary Star." Publications of the Astronomical Society of the Pacific 114, no. 800 (2002): 1117–23. http://dx.doi.org/10.1086/342513.

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23

Fox, Ori D., and Chad Casper. "A Spitzer Search for the Missing Supernovae in the Galactic Nuclei of ULIRGS." Proceedings of the International Astronomical Union 11, A29B (2015): 238. http://dx.doi.org/10.1017/s1743921316005111.

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AbstractSupernova (SN) rates serve as an important probe of star formation models and initial mass functions, particularly at high redshifts due to the SN intrinsic luminosity. Ground-based optical surveys, however, typically discover nearly ten times fewer SNe than predicted, challenging our understanding of massive star formation and evolution. These results are generally attributed to the high dust extinction associated with the nuclei of star forming galaxies, such as Ultra Luminous InfraRed Galaxies (ULIRGs). Near-infrared surveys have been unsuccessful due to extinction values exceeding

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24

Man, Allison. "The role of AGN in galaxy star formation: A case study of a radio galaxy at z = 2.6." Proceedings of the International Astronomical Union 15, S356 (2019): 224. http://dx.doi.org/10.1017/s1743921320002963.

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AbstractRadio galaxies are ideal sites to scrutinize AGN feedback physics, as they are massive galaxies with jets that interact with the surrounding ISM. I will present a detailed analysis of the recent star formation history and conditions of a starbursting, massive radio galaxy at z = 2.6, PKS 0529-549. In the 8.5-hour VLT/X-Shooter spectrum, we detect unambiguous signatures of stellar photospheric absorption lines originating from OB-stars. Comparison with model spectra shows that more than one burst took place in its recent past: the most recent one at 4 − 7 Myr, and another aged ⩾20 Myr.

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25

Du, J., C. Wang, T. L. Zhang, M. Volwerk, and C. Carr. "Mirror waves and mode transition observed in the magnetosheath by Double Star TC-1." Annales Geophysicae 27, no. 1 (2009): 351–55. http://dx.doi.org/10.5194/angeo-27-351-2009.

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Abstract. The Double Star TC-1 magnetosheath pass on 26 February 2004 is used to investigate magnetic field fluctuations. Strong compressional signatures which last for more than an hour have been found near the magnetopause behind a quasi-perpendicular bow shock. These compressional structures are most likely mirror mode waves. There is a clear wave transition in the magnetosheath which probably results from the change of the interplanetary magnetic field (IMF) cone angle. The wave characteristics in the magnetosheath are strongly controlled by the type of the upstream bow shock.

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26

Cunha, Mariana. "Minimal gestures: Displacement, affect and urban experience in A hora da estrela/The Hour of the Star (Amaral, 1985)." Studies in Spanish & Latin-American Cinemas 16, no. 2 (2019): 177–93. http://dx.doi.org/10.1386/slac.16.2.177_1.

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27

Teixeira, Gustavo Henrique de Almeida, José Fernando Durigan, Ben-Hur Mattiuz, Ricardo Elesbão Alves, and Timothy James O'Hare. "Cultivar affects browning susceptibility of freshly cut star fruit slices." Scientia Agricola 63, no. 1 (2006): 1–4. http://dx.doi.org/10.1590/s0103-90162006000100001.

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Consumption of freshly-cut horticultural products has increased in the last few years. The principal restraint to using freshly-cut carambola is its susceptibility to tissue-browning, due to polyphenol oxidase-mediated oxidation of phenolic compounds present in the tissue. The current study investigated the susceptibility to browning of star fruit slices (Averrhoa carambola L.) of seven genotypes (Hart, Golden Star, Taen-ma, Nota-10, Malásia, Arkin, and Fwang Tung). Cultivar susceptibility to browning as measured by luminosity (L*) varied significantly among genotypes. Without catechol 0.05 M,

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28

Jones, D., H. M. J. Boffin, J. Hibbert, et al. "The post-common-envelope binary central star of the planetary nebula PN G283.7−05.1." Astronomy & Astrophysics 642 (October 2020): A108. http://dx.doi.org/10.1051/0004-6361/202038778.

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We present the discovery and characterisation of the post-common-envelope central star system in the planetary nebula PN G283.7−05.1. Deep images taken as part of the POPIPlaN survey indicate that the nebula may possess a bipolar morphology similar to other post-common-envelope planetary nebulae. Simultaneous light and radial velocity curve modelling reveals that the newly discovered binary system comprises a highly irradiated M-type main-sequence star in a 5.9-hour orbit with a hot pre-white dwarf. The nebular progenitor is found to have a particularly low mass of around 0.4 M⊙, making PN G28

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29

Premkumar, M., and R. Sowmya. "Energy Efficient Operation of Three Phase Induction Motor using Delstar Converter for Machine Tools." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 4 (2017): 1706. http://dx.doi.org/10.11591/ijece.v7i4.pp1706-1713.

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DELSTAR converter is an electronic system to be interfaced with the existing STAR – DELTA starter for machine tools. Induction motor consumes more power while it is operated at DELTA mode for a long time under no load condition. The proposed system gives the solution for the above stated problem. When the load on the motor is less than 40% of full load, it switches the motor to operate in STAR mode to save energy. When the load increases beyond 40%, it automatically switches the motor to operate in DELTA mode. The starting regimen is not disturbed. The proposed converter is recommended for app

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30

Rezende, Neide Luzia de, and Sarah Vervloet Soares. "A LEITURA LITERÁRIA DE A HORA DA ESTRELA: UM PERCURSO DE ENCONTROS E DESCOBERTAS." Revista Graphos 21, no. 1 (2019): 116–34. http://dx.doi.org/10.22478/ufpb.1516-1536.2019v21n1.46551.

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O presente artigo apresenta um relato de experiência de leitura literária, realizada no primeiro ano do ensino médio, do Instituto Federal do Espírito Santo (IFES – campus Piúma) e, ainda, discute alguns aspectos que se tornaram relevantes durante essa prática. Por meio de aulas transformadas em encontros, o projeto de leitura da obra A hora da estrela (1977), de Clarice Lispector, teve o objetivo de aproximar os alunos da prática da leitura. Assim, a leitura literária, a mediação de leitura, a interação com a biblioteca escolar, a produção do portfólio de leitura e a didática de literatura sã

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Soares, Sarah Vervloet, and Neide Luzia de Rezende. "A LEITURA LITERÁRIA DE A HORA DA ESTRELA: UM PERCURSO DE ENCONTROS E DESCOBERTAS." Revista Graphos 21, no. 1 (2019): 116–34. http://dx.doi.org/10.22478/ufpb.1516-1536.2019v21n1.46895.

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Resumo: O presente artigo apresenta um relato de experiência de leitura literária, realizada no primeiro ano do ensino médio, do Instituto Federal do Espírito Santo (IFES – campus Piúma) e, ainda, discute alguns aspectos que se tornaram relevantes durante essa prática. Por meio de aulas transformadas em encontros, o projeto de leitura da obra A hora da estrela (1977), de Clarice Lispector, teve o objetivo de aproximar os alunos da prática da leitura. Assim, a leitura literária, a mediação de leitura, a interação com a biblioteca escolar, a produção do portfólio de leitura e a didática de liter

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32

Abdelaziz, M. H., E. M. Elgallad, A. M. Samuel, H. W. Doty, and F. H. Samuel. "High-Temperature Tensile Fractography of Zr-, Ni-, and Mn-Containing Al-Si-Cu-Mg Cast Alloys." Advances in Materials Science and Engineering 2020 (April 9, 2020): 1–11. http://dx.doi.org/10.1155/2020/9027534.

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This study investigated the fracture behavior of 0.3% Zr-containing 354 alloy following the addition of 0.75% Mn or 2%Ni. The examined surfaces were obtained from tensile testing of the bars at 250°C. For each alloy, the test bar samples were examined in the T6-treated conditions after being exposed to 250°C for 1 and 200 hours. The fracture surface of the base alloy (0.3% Zr-containing 354 alloy) after stabilization for one hour at 250°C reveals a dimpled structure throughout, indicating the ductile nature of the fracture mode. The Alx (Zr, Ti)Si complex compound is observed with star-like an

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33

Ambruster, C. W., B. R. Pettersen, S. L. Hawley, L. A. Coleman, and S. Sciortino. "Independence of Chromospheric Activity and Soft X-Ray Flaring on the Flare Star EV Lacertae." International Astronomical Union Colloquium 104, no. 2 (1989): 27–31. http://dx.doi.org/10.1017/s0252921100153734.

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AbstractEXOSAT observed the flare star EV Lacertae for 17 hr over 2 days in October 1985. Two flaring episodes were recorded. During a significant fraction of these observations, IUE, photometric and spectroscopic coverage was available. A 2-hour long period of X-ray flaring was observed during which there was no U-band activity and almost no chromospheric activity. On the other hand, two ΔU ~ 1° m° 5 optical flares produced normal chromospheric enhancements, but only a weak X-ray response. We suggest that these and a few other observations of stellar flares may imply the occasional existence

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34

Kennelly, E. J., G. A. H. Walker, W. J. Merryfield та J. M. Matthews. "Mode Determination by Fourier Analysis of Line-Profile Variations: Application to τ Peg". International Astronomical Union Colloquium 139 (1993): 147. http://dx.doi.org/10.1017/s0252921100117142.

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AbstractThe identification of modes of oscillation is an important first step towards the seismology of stars. Low- and high-degree nonradial modes of oscillation may appear as variations in the line profiles of rapidly rotating δ Scuti stars. We present a technique whereby complex patterns in the line profiles are decomposed into Fourier components in both time and “Doppler space”. The technique is applied to the 7.3-hour time series of high-resolution data obtained from CFHT for the δ Scuti star τ Peg. In addition to the low-degree mode which has been identified in photometric studies (Brege

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35

Meintjes, P. J. "On the Evolution of the Nova-like Variable AE Aquarii." International Astronomical Union Colloquium 190 (2004): 300–306. http://dx.doi.org/10.1017/s0252921100002244.

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AbstractIt is shown here that the peculiar properties of AE Aqr can can be accounted for if the mass transfer from an evolved 0.7M⊙ secondary K4-5 star (qi ≈ 0.8, i.e. < 1) initiated when the orbital period of the binary was Porb,i ≈ 8.5 hours and the white dwarf period P*,i ≈ 1 hour. This resulted in a significant amount of orbital angular momentum being accreted by the white dwarf in an initial discless spin-up phase towards P* ≈ 0.1 Porb,i. This destabilized the mass transfer, resulting in a run-away mass transfer from the secondary that lasted for approximately 104 years, with the orbit

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36

Solarić, Nikola. "Automatic grid azimuth by hour angle of the sun, a star or a planet using an electronic theodolite Kern E2." Astrophysics and Space Science 177, no. 1-2 (1991): 175–79. http://dx.doi.org/10.1007/bf00643671.

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37

Oosterloo, T. A., H. K. Vedantham, A. M. Kutkin, et al. "Extreme intra-hour variability of the radio source J1402+5347 discovered with Apertif." Astronomy & Astrophysics 641 (September 2020): L4. http://dx.doi.org/10.1051/0004-6361/202038378.

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The propagation of radio waves from distant compact radio sources through turbulent interstellar plasma in our Galaxy causes these sources to twinkle, a phenomenon called interstellar scintillation. Such scintillations are a unique probe of the micro-arcsecond structure of radio sources as well as of the sub-AU-scale structure of the Galactic interstellar medium. Weak scintillations (i.e. an intensity modulation of a few percent) on timescales of a few days or longer are commonly seen at centimetre wavelengths and are thought to result from the line-of-sight integrated turbulence in the inters

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38

Igumenshchev, I. V. "Numerical Study of the Shaping of Planetary Nebulae." Symposium - International Astronomical Union 155 (1993): 371. http://dx.doi.org/10.1017/s0074180900171608.

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An axisymmetric density distribution likely to be representative for many Planetary Nebulae (PN). We suggest that the axial symmetry of PN results from a predominant ejection of matter in the equatorial direction due to the duplicity of the central star (Livio et al.,1979, Ap. J.,188,1). We present an illustrative example of the formation of the bipolar PN Soutern Crab (He 2–104). In this model high velocity matter ejected by hot central star interacts with an outer oblate envelope located around a symbiotic binary star. The binary consists of a Mira variable, ejected matter forming a thick di

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Caillault, Jean-Pierre, and Stephen Drake. "Full Phase Coverage of BY Dra with the VLA." International Astronomical Union Colloquium 130 (1991): 494–97. http://dx.doi.org/10.1017/s0252921100080246.

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AbstractWe have obtained 21 ~one-hour observations of the prototypical spotted star, BY Dra, with the VLA. These data are sufficiently well spaced in time to allow for complete rotational and orbital phase coverage; the resultant radio light curves are compared to their optical counterpart. We also plot the emission versus time without phase-folding, in order to search for longer periods of activity. Splitting the data into smaller (three minute) time bins allows for the determination of the normalized amplitude distribution of the flux; we compare this with known stellar optical and X-ray fla

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Suvorov, A. G. "Ultra-compact X-ray binaries as dual-line gravitational-wave sources." Monthly Notices of the Royal Astronomical Society 503, no. 4 (2021): 5495–503. http://dx.doi.org/10.1093/mnras/stab825.

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ABSTRACT By virtue of their sub-hour orbital periods, ultra-compact X-ray binaries are promising sources for the space-borne gravitational-wave interferometers LISA, Taiji, and TianQin. Some of these systems contain a neutron star primary, whose spin period can be measured directly via pulse timing, or indirectly through rotational modulations of burst phenomena. It is pointed out here that since actively accreting stars, with spin frequencies in the hundreds of Hz, may continuously emit appreciable gravitational waves due to the presence of accretion-built mountains, toroidal magnetic fields,

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Qiao, Min, Kathy Ringland, Tadeusz Foniok, Saro Bascaramurty, Kris L. Malisza, and Marc R Del Bigio. "Changes in Diffusion-Weighted Images During Transient Cerebral Hypoxia-Ischemia Correlate with Reductions in Extracellular Space using Electron microscopic and Impedance Techniques." Stroke 32, suppl_1 (2001): 316. http://dx.doi.org/10.1161/str.32.suppl_1.316-a.

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2 Background: Experimental animal and clinical studies indicate that diffusion-weighted imaging detects early ischemic changes which are assumed to reflect reductions in extracellular space and cellular edema. In the present study, we investigate this directly by measuring intensity changes in diffusion-weighted images and alterations in extracellular space using electron microscopic and impedance techniques during and after transient cerebral hypoxia/ischemia in rats. Methods: The right carotid artery was isolated surgically (sham control) or occluded with subsequent exposure to 8% oxygen for

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Gülnar, Emel, and Nurcan Çalişkan. "The Development and Effectiveness of a Care Protocol Using the Stevens Star Model of Knowledge Transformation in Female Patients With Stress Incontinence: An Experimental Study." Wound Management & Prevention 67, no. 3 (2021): 36–47. http://dx.doi.org/10.25270/wmp.2021.3.3647.

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BACKGROUND: Nurse-led pelvic floor muscle exercise and lifestyle education programs are effective first-line interventions for women with stress incontinence (SI). PURPOSE: To develop an evidence-based stress incontinence care protocol (SICP) using the Stevens Star Model of Knowledge Transformation and evaluate its effect on the frequency and quantity of urinary incontinence, quality of life, pelvic muscle self-efficacy levels, and lifestyle variables of women with SI. METHODS: An SICP was developed on the basis of the Star model. The views of an expert were consulted for testing the content v

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Gilliland, Ronald L., Peter D. Edmonds, Larry Petro, Abhijit Saha, and Michael Shara. "The Variable Star Population in the Center of 47 Tuc as denned by HST Observations." International Astronomical Union Colloquium 155 (1995): 335–36. http://dx.doi.org/10.1017/s0252921100037374.

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AbstractThe high stellar densities at the centre of some globular clusters provide prolific breeding grounds for exotic stars, e.g., the 11 msec pulsars in 47 Tuc and numerous blue stragglers. The same high density of stars as viewed on the sky makes ground-based photometry problematic for variable star detection. Even a very few tight binaries can be of fundamental importance for the dynamic evolution of the cluster core. We present results of a continuous 40-hour sequence of U-band CCD exposures acquired with WF/PC on HST. The high spatial resolution coupled with a stable PSF allows nearly P

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Silence, K., D. Collen, and HR Lijnen. "Regulation by alpha 2-antiplasmin and fibrin of the activation of plasminogen with recombinant staphylokinase in plasma." Blood 82, no. 4 (1993): 1175–83. http://dx.doi.org/10.1182/blood.v82.4.1175.bloodjournal8241175.

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The effects of alpha 2-antiplasmin and fibrin on the activation of plasminogen by recombinant staphylokinase (STAR) were studied in an effort to elucidate further the molecular basis of the fibrin- specificity of this fibrinolytic agent. In purified systems consisting of 1.5 mumol/L intact or low-M(r) plasminogen and 3 mumol/L alpha 2- antiplasmin, at 37 degrees C and in the absence of fibrin, STAR did not induce plasminogen activation and plasmin-alpha 2-antiplasmin complex (PAP) formation. Addition of a purified fibrin clot (30% vol at a concentration of 3 mg/mL) to mixtures containing intac

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Clements, Ashley. "Thesmophoriazusae's Two Dawns." Mnemosyne 62, no. 4 (2009): 535–47. http://dx.doi.org/10.1163/156852509x339905.

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AbstractIt is commonly assumed that line 2 of Aristophanes' Thesmophoriazusae, where it appears that the action of our play begins in the early morning after dawn, is inconsistent with lines 277-9, where the Kinsman is told to hurry off to the women's Assembly so as to arrive there before dawn (cf. 376). This article offers a fresh approach to the problem by re-analyzing the temporal co-ordinate offered by the Kinsman's wish for the appearance of χελιδων, 'the swallow', in line 1. It is argued that for an audience of mid-April 411, the play's production date, χελιδων did not primarily evoke th

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46

Silence, K., D. Collen, and HR Lijnen. "Regulation by alpha 2-antiplasmin and fibrin of the activation of plasminogen with recombinant staphylokinase in plasma." Blood 82, no. 4 (1993): 1175–83. http://dx.doi.org/10.1182/blood.v82.4.1175.1175.

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Abstract The effects of alpha 2-antiplasmin and fibrin on the activation of plasminogen by recombinant staphylokinase (STAR) were studied in an effort to elucidate further the molecular basis of the fibrin- specificity of this fibrinolytic agent. In purified systems consisting of 1.5 mumol/L intact or low-M(r) plasminogen and 3 mumol/L alpha 2- antiplasmin, at 37 degrees C and in the absence of fibrin, STAR did not induce plasminogen activation and plasmin-alpha 2-antiplasmin complex (PAP) formation. Addition of a purified fibrin clot (30% vol at a concentration of 3 mg/mL) to mixtures contain

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47

Bertulani, C. A., M. Naizer, and W. Newton. "Stellar oscillations induced by the passage of a fast stellar object." International Journal of Modern Physics D 23, no. 10 (2014): 1450084. http://dx.doi.org/10.1142/s0218271814500849.

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In this paper, we investigate induced oscillations by the gravitational field of a fast stellar object, such as a neutron star or a black-hole in a near miss collision with another star. Nonadiabatic collision conditions may lead to large amplitude oscillations in the star. We show that for a solar-type star a resonant condition can be achieved by a fast moving stellar object with velocity in the range of 100 to 1000 km/s, passing at a distance of a few multiples of the star radius. Although such collisions are rare, they are more frequent than head-on collisions, and their effects could be ob

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Zhang, R. L., M. Chopp, H. Chen, J. H. Garcia, and Z. G. Zhang. "Postischemic (1 hour) hypothermia significantly reduces ischemic cell damage in rats subjected to 2 hours of middle cerebral artery occlusion." Stroke 24, no. 8 (1993): 1235–40. http://dx.doi.org/10.1161/01.str.24.8.1235.

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Franceschini, R., C. Gandolfo, A. Cataldi, et al. "Twenty-four-hour beta-endorphin secretory pattern in stroke patients." Stroke 25, no. 11 (1994): 2142–45. http://dx.doi.org/10.1161/01.str.25.11.2142.

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Cornejo Maciel, Fabiana, Paula Maloberti, Isabel Neuman, et al. "An arachidonic acid-preferring acyl-CoA synthetase is a hormone-dependent and obligatory protein in the signal transduction pathway of steroidogenic hormones." Journal of Molecular Endocrinology 34, no. 3 (2005): 655–66. http://dx.doi.org/10.1677/jme.1.01691.

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We have described that, in adrenal and Leydig cells, the hormonal regulation of free arachidonic acid (AA) concentration is mediated by the concerted action of two enzymes: an acyl-CoA thioesterase (MTE-I or ARTISt) and an acyl-CoA synthetase (ACS4). In this study we analyzed the potential regulation of these proteins by hormonal action in steroidogenic cells. We demonstrated that ACS4 is rapidly induced by adrenocorticotropin (ACTH) and cAMP in Y1 adrenocortical cells. The hormone and its second messenger increased ACS4 protein levels in a time and concentration dependent way. Maximal concent

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