329,827 research outputs found
John D. Barrow On the Problem of Free Will
No full textsummary:Britský kosmolog, teoretický fyzik, matematik a filozof John D. Barrow nedávno zemřel. Zaujal čtenáře na celém světě zejména jako autor knih, které spojují informace o pokroku vědy s hlubším pohledem na její historický vývoj a filozofické pozadí. Informujeme o jeho nejzávažnějších publikacích a soustřeďujeme se zejména na ty, jež byly přeloženy do češtiny. Připojujeme překlad kapitoly Problém svobodné vůle z Barrowovy knihy Impossibility
The Barrow Innovation Center Case Series: A Novel 3-Dimensional-Printed Retractor for Use with Electromagnetic Neuronavigation Systems.
No full textOBJECTIVE: The Barrow Innovation Center consists of an educational program that promotes interdisciplinary collaboration among neurosurgery, legal, and engineering professionals to foster the development of new medical devices. This report describes a common issue faced during the placement of ventricular shunts for the treatment of hydrocephalus and the solution to this problem that was developed through the Barrow Innovation Center.
METHODS: Neurosurgery residents involved in the Barrow Innovation Center presented the problem of ferromagnetic retractors interfering with pinless image-guidance systems at a monthly meeting. Potential solutions were openly discussed by an interdisciplinary committee of neurosurgeons, patent lawyers, and biomedical engineers. The committee decided to pursue development of a novel self-retaining retractor made of nonferromagnetic material as a solution to the problem.
RESULTS: Each retractor design was tested in the cadaver laboratory for size and functionality. A final design was chosen and used in a surgical case requiring ventriculoperitoneal shunt placement. The new retractor successfully retracted the scalp without interfering with the electromagnetic image-guidance system.
CONCLUSIONS: Through the interdisciplinary Barrow Innovation Center program, a newly designed, 3-dimensional-printed skin and soft-tissue retractor was created, along with an innovative universal shunt retainer. Through this integrated program dedicated to surgical innovation (i.e., the Barrow Innovation Center), the process of developing and implementing new technology at our institution has been streamlined, creating a culture of innovation within the neurosurgery training program
Barrow Innovation Center: A 5-Year Update and Future Direction
No full textOBJECTIVE: The rich history of neurosurgical innovation served as a model for the Barrow Innovation Center\u27s establishment in 2016. The center\u27s accomplishments are summarized in hopes of fostering the development of similar centers and initiatives within the neurosurgical and broader medical community. METHODS: A retrospective review (January 2016-July 2021) of patent filings, project proposals, and funding history was used to generate the data presented in this operational review. RESULTS: Through the 5-year period of analysis, 55 prior art searches were conducted on new patentable ideas. A total of 87 provisional patents, 25 Patent Cooperation Treaty applications, and 48 national stage filings were submitted. In partnership with Arizona State University, the University of Arizona, California Polytechnic State University, and Texas A&M University, a total of 27 multidisciplinary projects were conducted with input from multispecialty engineers and scientists. These efforts translated into 1 startup company and 2 licensed patents to commercial companies, with most remaining ideas and project efforts awaiting interest from industry. CONCLUSIONS: The multidisciplinary collaborative environment embodied by the Barrow Innovation Center has revolutionized the innovative and entrepreneurial environment of its home institution and enabled neurosurgical residents to get a unique educational experience within the realm of innovation. The bottleneck within the workflow of ideas from conception to commercialization appears to be the establishment of commercial partners; therefore, future efforts within the center will be to establish a panel of industry partnerships to enhance the exposure of ideas to interested companies
Animals and Cotswold-Severn long-barrows: a re-examination.
No full textIn this paper new collaborative research is presented following a re-examination of the faunal remains and
architectural evidence from a selected number of Cotswold-Severn long barrow sites. Five different loci of
deposition are considered: ‘pre-barrow’ contexts; the chambers; the superstructure of the barrow and the
ditches; the forecourt; and blocking material. These spatial locations were chosen following research that has
demonstrated that these areas are likely to represent different temporal, as well as spatial, patterns of activity.
While the faunal remains are diverse in character, common themes observed at the sites include: the deposition
of complete or partial remains of foetal and young animals within chambers; the use of teeth and cranial
elements within blocking material; and, within each temporal context, the absence of clear evidence for feasting
and the importance of cattle, and the small but constant inclusion of wild mammals. This complexity of
practice has the potential to mature our thinking regarding the nature of human–animal relationships within
the early Neolithic of Britain and provide a secure foundation of evidence for subsequent interpretations
Lettre de John Barrow à G.C. Berkeley sur la nomination du révérend Thomas Tracey Coxwell en tant qu'aumônier du Barfleur
No full text4 pages, originalLettre de J[ohn] Barrow à G.C. Berkeley sur : la nomination du révérend Tho[ma]s Tracey Coxwell en tant qu'aumônier du Barfleur
Elementorum libri XV
No full textEuclidis Data succincte demonstrata : una cum emendationibus quibusdam & additionibus ad Elementa Euclidis nuper opera opera Is. Barrow ...opera Is. Barrow ...TitelvignettePaginierung springt von S. 352 auf S. 363Pergamenteinband; Supralibros der Bibliothek der Naturforschenden Gesellschaft in Züric
Small intracranial aneurysms in the Barrow Ruptured Aneurysm Trial (BRAT)
No full textBackground: Treatment of small ruptured aneurysms (SRAs) remains controversial, with literature reporting difficulty with endovascular versus microsurgical approaches. This paper analyzes outcomes after endovascular coiling and microsurgical clipping among patients with SRAs prospectively enrolled in the Barrow Ruptured Aneurysm Trial (BRAT). Method: All BRAT patients were included in this study. Patient demographics, aneurysm size, aneurysm characteristics, procedure-related complications, and outcomes at discharge and at 1-year and 6-year follow-up were evaluated. A modified Rankin scale (mRS) score \u3e 2 was considered a poor outcome. Results: Of 73 patients with SRAs, 40 were initially randomly assigned to endovascular coiling and 33 to microsurgical clipping. The rate of treatment crossover was significantly different between coiling and clipping; 25 patients who were assigned to coiling crossed over to clipping, and no clipping patients crossed over to coiling (P \u3c 0.001). Among SRA patients, 15 underwent coiling and 58 underwent clipping; groups did not differ significantly in demographic characteristics or aneurysm type (P ≥ 0.11). Mean aneurysm diameter was significantly greater in the endovascular group (3.0 ± 0.3 vs 2.6 ± 0.6; P = 0.02). The incidence of procedure-related complications was similar for endovascular and microsurgical treatments (odds ratio [95% confidence interval], 1.0 [0.1–10.0], P = 0.98). Both groups had comparable overall outcome (mRS score \u3e 2) at discharge and 1-year and 6-year follow-up (P = 0.48 and 0.73, respectively). Conclusions: Most SRA patients in the BRAT underwent surgical clipping, with a high rate of crossover from endovascular approaches. Endovascular treatment was equivalent to surgical clipping with regard to procedure-related complications and neurologic outcomes
seine barrow
No full textseine n[Drawing] Seine 'barra' [barrow]. (measurements are 8 feet by 5 feet)DNE-citUsed I and SupUsed I2Not usedsaine, scaine, seane, Sayn, seine-boat,BUTLER, BARROW�, CAPLIN ~ , COD ~ , LANCE ~, ~ line/man/ball/barrow/gallows/lead/line/linnet/man/master/skiff/tar/cre
New barrow cemeteries in E and S Lithuania
No full text2018-2022 m. autoriaus asmenine iniciatyva analizuojant senus Lietuvos žemėlapius, LiDAR duomenis ir lankantis įvairiose Rytų ir Pietų Lietuvos vietovėse buvo surasta apie 50 naujų pilkapynų ir pavienių pilkapių, kurių dalies aprašymai jau buvo pateikti ankstesniame leidinyje (ATL 2017 metais, 2018, p. 570-591; ATL 2018 metais, 2019, p. 518-543). Šiame straipsnyje skelbiami aprašymai 12 kitų naujai identifikuotų pilkapynų ar pavienių pilkapių, kuriuos siūloma įtraukti į KVR.An analysis of old maps and LiDAR data followed by the 2017-2022 inspection of various locations in E and S Lithuania led to the discovery of around 50 new barrow cemeteries and isolated barrows, some descriptions of which this publication has already presented. This article discusses another 12. The largest such cemeteries, each with two parts, were discovered near Vidiškės and Sungardai in Ignalina District. Jurgiškės I (6 new barrows near a known barrow cemetery), Jurgiškės II (a new group of 15 barrows), and Matiešionys II (a new group of 6 barrows) are also big barrow groups in S Lithuania (Varėna and Birštonas Districts). Over 10 new barrows were identified close to Maišinė and Sausiai Barrow Cemeteries (near Vilnius in Trakai District). Other new barrows were found close to Kalviasalis (Ignalina District) and Našlėnai (Kmitai) II (Kaišiadorys District) Barrow Cemeteries. All of these newly discovered cemeteries and isolated barrows date to the middle - second half of the Iron Age (4th-11th centuries)
G. W. S. Barrow, Kingship and Unity. Scotland 1000-1306.
No full textGenet Jean-Philippe. G. W. S. Barrow, Kingship and Unity. Scotland 1000-1306.. In: Annales. Économies, Sociétés, Civilisations. 39ᵉ année, N. 6, 1984. p. 1193
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