A Natural History of Survivable Communications

This chapter examines two ill-fated DRTE projects intended to circumvent the problematic ionosphere above Canada, providing “survivable communications” during the Cold War. The first sought to use meteor trails as reflection surfaces for shortwave radio communications; the second attempted to build machines that automatically probed the ionosphere and chose the best communications frequency for a given radio circuit. Each system embodied concepts central to later forms of “distributed communications” like the internet: in the first case, store-and-forward communications; in the second, real-time channel switching. The chapter illustrates how the history of those concepts is, in part, a history of the natural orders that helped support these systems and generate their central concepts. Together, the two projects signaled the shift to alternative natural and machinic orders, creating the conditions for the final abandonment of the Northern shortwave project.

Neurosurgery ◽  
2010 ◽  
Vol 67 (6) ◽  
pp. E1845-E1851 ◽  
Author(s):  
David S Xu ◽  
Asad A Usman ◽  
Michael C Hurley ◽  
Christopher S Eddleman ◽  
Bernard R Bendok

Abstract BACKGROUND AND IMPORTANCE: Vein of Galen aneurysmal malformations (VGAMs) arise from persistent arteriovenous shunting from primitive choroidal vessels into the median prosencephalic vein of Markowski, the embryonic precursor of the vein of Galen. VGAMs rarely present past infancy, and their natural history in adults is unknown. We report the first case of a familial-associated VGAM in an asymptomatic adult female patient. The clinical features of this case are presented alongside a systematic review of the literature on adult VGAM cases to assess the natural history, clinical management, and genetic basis of this rare neurovascular lesion. CLINICAL PRESENTATION: A previously healthy 44-year-old woman with a family history of a VGAM in a stillborn presented with an 8-week onset of dizziness and vertigo that spontaneously resolved. Time-resolved magnetic resonance angiography identified a choroidal VGAM. No intervention was undertaken at this time because of the patient's asymptomatic status after 9 months of follow-up. CONCLUSION: Based on our review of the literature, this is the first case report of a familial-associated VGAM in an adult patient and suggests that VGAM development can be genetically linked. Of 15 adult VGAM cases previously reported, all patients were either symptomatic or treated, thus precluding determination of VGAM natural history in adults. Patient outcomes correlated with the severity of presenting symptoms, which ranged from asymptomatic to immediately life-threatening. We hypothesize that self-selection may render VGAMs to be more benign for them to persist past childhood. Further investigation of the molecular biology underlying VGAM development is warranted.


Author(s):  
Andrew Targowski

The purpose of this chapter is to show that the Cold War is behind the invention of the Internet. This is one of a very few positive results of this war, which had tremendous influence on the further development of civilization. The research on the universality of info-communication processes was conducted on both sides of the Iron Curtain, which indicates the similarities in engineering thinking, regardless of the geographic locations. The political meaning of the Internet does not only result from its history but also stands for the support of democratic development and the obstruction of dictatorships. The history of the Internet is also an example of the development of great engineering talents and research and development centers, which rise to the occasion on such ambitious projects. All of these aspects of the Internet will be investigated in this paper, as well as its impact upon the emergence of the Global Civilization.


1999 ◽  
Vol 2 (4) ◽  
pp. 541-565 ◽  
Author(s):  
Anne Scott ◽  
Lesley Semmens ◽  
Lynette Willoughby

1965 ◽  
Vol 111 (473) ◽  
pp. 300-303 ◽  
Author(s):  
John Johnson

Seventy-six male patients referred to the Maudsley Hospital with a primary complaint of impaired sexual potency were studied in order to define the natural history of these conditions (to be reported). Two of the patients who complained of impotence were found to have intracerebral tumours. In the first case the tumour was limited to the temporal lobe: in the second case it was situated in the posterior part of the frontal lobe.


Author(s):  
Andrew Targowski

The purpose of this chapter is to show that the Cold War is behind the invention of the Internet. This is one of a very few positive results of this war, which had tremendous influence on the further development of civilization. The research on the universality of info-communication processes was conducted on both sides of the Iron Curtain, which indicates the similarities in engineering thinking, regardless of the geographic locations. The political meaning of the Internet does not only result from its history but also stands for the support of democratic development and the obstruction of dictatorships. The history of the Internet is also an example of the development of great engineering talents and research and development centers, which rise to the occasion on such ambitious projects. All of these aspects of the Internet will be investigated in this paper, as well as its impact upon the emergence of the Global Civilization.


Author(s):  
Scott MacDonald

The Sublimity of Document: Cinema as Diorama (Avant-Doc 2) is an international collection of in-depth, substantive interviews with moving-image artists working “avant-doc,” that is, making films that explore the territory between documentary and experimental cinema. The Sublimity of Document follows on MacDonald’s earlier Avant-Doc: Intersections of Documentary and Avant-Garde Cinema (Oxford, 2015), though the focus here is on filmmakers who are committed to document itself, willing to go anywhere on the planet (or within film archives or on the internet) to document what they believe we need to see—regardless of whatever political implications the film experiences they create may have for us. The book uses the early history of the museum habitat diorama of animal life, specifically the Akeley Hall of African Mammals at the American Museum of Natural History, as a way of rethinking both early and modern cinema of document—and especially those recent filmmakers and films devoted to providing a panorama of places and events that viewers might never have opportunities to experience in person. The twenty-seven interviews in The Sublimity of Document are organized panoramically within the volume.


2020 ◽  
Vol 43 ◽  
Author(s):  
Hannes Rakoczy

Abstract The natural history of our moral stance told here in this commentary reveals the close nexus of morality and basic social-cognitive capacities. Big mysteries about morality thus transform into smaller and more manageable ones. Here, I raise questions regarding the conceptual, ontogenetic, and evolutionary relations of the moral stance to the intentional and group stances and to shared intentionality.


2001 ◽  
Vol 120 (5) ◽  
pp. A128-A128 ◽  
Author(s):  
H MALATY ◽  
D GRAHAM ◽  
A ELKASABANY ◽  
S REDDY ◽  
S SRINIVASAN ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document