Search results for "CLIPS"

Spectral analysis of the low-mass X-ray pulsar 4U 1822-371: Reflection component in a high-inclination system

2021

Context. The X-ray source 4U 1822-371 is an eclipsing low-mass X-ray binary and X-ray pulsar, hosting a NS that shows periodic pulsations in the X-ray band with a period of 0.59 s. The inclination angle of the system is so high (80–85°) that in principle, it should be hard to observe both the direct thermal emission of the central object and the reflection component of the spectrum because they are hidden by the outer edge of the accretion disc. Despite the number of studies carried out on this source, many aspects such as the geometry of the system, its luminosity, and its spectral features are still debated. Aims. Assuming that the source accretes at the Eddington limit, the analysis perf…

Detailed study of the X-ray and optical/UV orbital ephemeris of X1822-371

2011

Recent studies of the optical/UV and X-ray ephemerides of X1822-371 have found some discrepancies in the value of the orbital period derivative. Because of the importance of this value in constraining the system evolution, we comprehensively analyse all the available optical/UV/X eclipse times of this source to investigate the origin of these discrepancies. We collected all previously published X-ray eclipse times from 1977 to 2008, to which we added the eclipse time observed by Suzaku in 2006. This point is very important to cover the time gap between the last RXTE eclipse time (taken in 2003) and the most recent Chandra eclipse time (taken in 2008). Similarly we collected the optical/UV e…

New ephemeris of the ADC source 2A 1822-371: a stable orbital-period derivative over 30 years

2010

We report on a timing of the eclipse arrival times of the low mass X-ray binary and X-ray pulsar 2A 1822-371 performed using all available observations of the Proportional Counter Array on board the Rossi X-ray Timing Explorer, XMM-Newton pn, and Chandra. These observations span the years from 1996 to 2008. Combining these eclipse arrival time measurements with those already available covering the period from 1977 to 1996, we obtain an orbital solution valid for more than thirty years. The time delays calculated with respect to a constant orbital period model show a clear parabolic trend, implying that the orbital period in this source constantly increases with time at a rate $\dot P_orb = …

The Crystal Structure of the THF Adduct of Monolithioferrocene

2015

Single crystals of [Fe(η5-C5H4)(η5-C5H5)]2Li2(thf)4 (1) were obtained from a tetrahydrofuran solution containing monolithioferrocene. The title compound crystallizes in the monoclinic space group P21 with a = 9.6589(5) A, b = 17.4285(9) A, c = 30.3116(15) A, β = 91.911(2)° and V = 5099.8(5) A3 with three independent molecules of 1. All individual molecules feature a non- symmetric almost planar Li2C2 four-membered ring with two shorter (2.118–2.215 A) and two longer Li–C distances (2.257–2.309 A). The lithium cations are each coordinated by two carbanionic atoms of two ferrocenyl substituents and two tetrahydrofuran molecules in a distorted tetrahedral fashion. All ferrocenyl moieties displ…

Recombinant activated factor VII administration in a patient with congenital lack of factor VII undergoing laparoscopic hysterectomy: A case report

2021

Highlights • Patients with lack of factor VIIa, suffering from abnormal uterine bleedings can be treated with laparoscopic hysterectomy. • Technique using bipolar coagulation and non-absorbable clips is safe and not time consuming. • Pre-operative loading with recombinant factor VIIa must be followed by prolonged supplementation in post-operative period. • We present suggested dosage and length of factor VIIa supplementation based on literature review and own experience.

Authentic Audiovisual Resources to Actualise Legal Interpreting Education

2015

New Zealand Aotearoa is an English-medium country and a home to a high number of minority migrant groups speaking over 160 different languages. To cater to the needs of such a diverse population, the Interpreting and Translation Team at Auckland University of Technology has developed a language-neutral pedagogy using a range of innovative teaching methods. One method is the use of authentic audiovisual material incorporating extracts from murder trials to raise awareness of courtroom discourse in general, and lawyers’ questions in particular. The aim of this study was to ascertain to what extent audiovisual clips are beneficial in legal interpreter education. After viewing audiovisual clips…

Viaje fantastico del gran piscator de Salamanca : jornadas por vno, y otro mundo, descubrimiento de sus substancias, generaciones, y producciones : C…

Sig. [calderó]8, A-G8 Frontispici amb grav. xil. - Port. orlada. - Reclams

Lucrezio e Carlo Magno. A proposito dell’epistola di Dungal sulle eclissi (MGH Epistolae IV Karolini aevi II, pp. 570-578)

2021

It is generally assumed that Lucretius’ De Rerum Natura disappeared with the end of antiquity and did not reappear until Poggio Bracciolini’s rediscovery (1417). Yet, the oldest and most valuable manuscripts of DRN were copied in the Carolingian age and reflect a high degree of attention to Lucretius’ text and its content. In the present paper, I argue that by studying more carefully the origin and diffusion of Lucretian manuscripts in Carolingian Europe, it is possible to detect an almost unrecognized connection between textual tradition, grammatical erudition, and literary imitatio. In the first section, I offer an overview of the reception of DRN in such representative ninth-century writ…

Tool support for MOLA

2006

AbstractThe paper describes the MOLA Tool, which supports the model transformation language MOLA. MOLA Tool consists of two parts: MOLA definition environment and MOLA execution environment. MOLA definition environment is based on the GMF (Generic Modeling Framework) and contains graphical editors for metamodels and MOLA diagrams, as well as the MOLA compiler. The main component of MOLA execution environment is a MOLA virtual machine, which performs model transformations, using an SQL database as a repository. The execution environment may be used as a plug-in for Eclipse based modeling tools (e.g., IBM Rational RSA). The current status of the tool is truly academic.

Absolok® versus Hem-o-Lok® clips for renorrhaphy during partial nephrectomy for parenchymal renal tumors

2020

Background To compare perioperative and functional outcomes associated with renorrhaphy performed with two different types of clips (Absolok® vs. Hem-o-Lok®) in a contemporary series of patients who underwent partial nephrectomy. Methods Patients in whom Absolok® clips were used to perform haemostasis at the level of tumor bed or to block the running sutures during sliding-clip renorrhaphy (study group) were compared with a contemporary control group of patients in whom renorrhaphy was performed with Hem-o-Lok® clips. Both groups received the same surgical technique via an open or robot-assisted approach. Inner renorrhaphy was performed with one or more 3-0 (26 mm needle) monofilament runni…