the sargasso of space

... right off the map - to somewhere else! First there is the new thin coldness of the air, the blazing corona and dullness of the sun, the visibility of the stars in high daylight. Then comes the ... through space with the ship into the dead-area." The score of members of the crew, bronzed space- sailors out of every port in the solar system, had listened mutely. Now, one of them, a tall tube-man, ... SF story of the year (this was the first SF prize awarded by the votes of fans, a precursor of the later Hugo Awards). In the later 1930s, in response to the economic strictures of the Great...

Ngày tải lên: 06/03/2014, 15:20

... radiation they emit in the last stages of their formation. • The use of gravitational waves to probe the universe of complex astro- nomical phenomena by the decoding of the details of the gravitational ... of the foundations of general relativity. It is one of the most accurately tested predictions in all of physics. The equality of accelerations of different bodies in the curved spacetime of the ... tests of strong-field theo- ries of the production of these waves, detailed confirmations of the predicted properties of black holes in general relativity, and observational tests of the theory of...

Ngày tải lên: 12/02/2014, 16:20

... at the wide pointed doors, depositing them in the midst of the crowd. The jagged lightning flash was there over the doors of the build- ing, and the words: here, by grace of the Lhari, is the ... passengers, then veering away. The gap in the starship's side was closing, and still Bart had not seen the tall, slim, flame-haired figure of his father. The port on the other side of the ship, he ... his eyes from the fascinating spectacle, and followed Tommy, stepping onto one of the sidewalks. It bore them down a long, sloping ramp toward the floor of the spaceport, then sped toward the glass...

Ngày tải lên: 17/02/2014, 09:20

Ngày tải lên: 21/02/2014, 16:20

... stripped of their electrons and the nuclei squeezed together, weighing in the neighborhood of a couple of tons per square inch. That could account for the beginning, but once the thing got started, the wrecked ... that was the first time they had touched since they had left the asteroid. Then they rested for a few moments and drank some of the achingly cold water from the tank and got up and went to the viewport. They ... what—" "Inside the ships. People. They'll all be dead. If they didn't lose their air so far, they'll lose it when we go in. Either way, of course, they'll be dead. They've...

Ngày tải lên: 06/03/2014, 09:22

... laboratory space, and offices for the observatory staff. One of the 4-kilometer arms disappears out of the right-hand side of the photo. The other is seen stretching to the upper left. At the 2-kilometer ... radiation they emit in the last stages of their formation. • The use of gravitational waves to probe the universe of complex astro- nomical phenomena by the decoding of the details of the gravitational ... some of the important achievements of the past decade illustrates this point: • The confirmation of the existence of gravitational waves by the observed shortening of the orbital period of a...

Ngày tải lên: 14/03/2014, 10:20

Ngày tải lên: 29/04/2014, 15:45

Ngày tải lên: 12/05/2014, 16:24

Ngày tải lên: 04/06/2014, 12:44

... into the cement and therefore, the total dose of antibiotics should not exceed 10% of the weight of the cement in order to avoid fracture of the cement spacer [27]. The implantation of an ... static spacers [37]. Duncan and Beauchamp [38] first described the successful use of PROSTALAC for the 2-stage revision of infected THA. The cement of the femoral head articulated with the ... accumulating in the potential joint space and decreasing the risk of soft-tissue contractures [18]. Recent studies [19] suggest that the ALC may remove the need for systemic antibiotics in the interval...

Ngày tải lên: 26/10/2012, 09:53

... which of the above mentioned techniques is the most superior one in the prevention of spacers’ dislocations regarding the femoral part. In the literature, the dislocation rates after hip spacer ... depending on the art of the spacer’s production as well as the fixa- tion method. Leunig et al. [18] reported dislocations of the hip in 5 of 12 patients after use of hand-formed spacers, whereas ... whereas in 7 cases the spacer remained in situ because either the patient was not willing to undergo further surgery or because the comorbidities of the patient did not allow the prosthesis reimplan- tation....

Ngày tải lên: 26/10/2012, 09:53

... and insertion of a cement-coated modular prosthesis with a spacer head. The cement mantle of the prosthesis is also antibiotic-loaded according to the sensitivity profile of the causative ... • the patient is not compliant, • partial weight bearing of the operated extremity cannot be tolerated, • the spacer is insufficiently fixated onto the proximal femur, • the size of the spacer ... hip spacer in situ, the spacer stem is inserted into the femur according to a “press-fit” method. Figure 2: Articulating hip spacer in situ, the partial cemen- tation of the spacer onto the...

Ngày tải lên: 26/10/2012, 09:53

...        6 Architectureand the Production of Public Space –Territorial Complexities   119    ...   18 The Territorial Structure of Public Space              ...        Architecture and the Production of Public Space,    ...

Ngày tải lên: 18/02/2014, 18:20

... direction. Each frame, then, has a minimum width (along the spatial axis) representing the amount of space captured in the frame, due to the field of view of the lens and the width of the frame itself, and ... on the left side of Figure 12 show zoom-ins, in which the field of view, the amount of space represented in the shot, narrows over time. Up to now, the angle of the sides of the frames has been ... and theorize these effects, and fill in the range of possibilities that would otherwise remain overlooked. 8 The idea of the spatial long exposure results from interchanging the axes of space...

Ngày tải lên: 19/02/2014, 10:20

... is not the case for the final result that goes into the proof of Theorem 1.1, although many of the arguments leading to it are valid in general. Theorem 1.5. For d =2 ,the homotopy fiber of |W| ... ϕ SS |Y T . The sets βF(X) define a sheaf βF : → ets and hence a space |βF|. The following key theorem is one of our main tools used in the proof of both Theorem 1.2 and Theorem 1.5. Its proof is deferred ... section describes the homotopy types of the spaces in the lower row of (1.9) in bordism-theoretic terms. One of the conclusions is that the lower row is a homotopy fiber sequence, proving Theorem 1.4....

Ngày tải lên: 06/03/2014, 08:21

... 9). Their statements recognise the critical importance of IPv6 to the future success of the Internet, urge companies to deploy it, and commit to actively promoting the adoption of IPv6 in their ... addresses enable connection to the Internet, both through identification of the endpoints to a conversation and enabling the carriage of the data of the conversation through the network. 4 Internet ... and other types of models based on ubiquity of the Internet. DSTI/ICCP(2007)20/FINAL 9 with public policy significance for the future of the Internet economy. The goal is to ensure the...

Ngày tải lên: 06/03/2014, 21:20

... the councils of the National Academy of Sciences, the National Academy of Engineering, and the Institute of Medicine. The members of the committee responsible for the report were chosen for their ... secure the services of eminent members of appropriate professions in the examination of policy matters pertaining to the health of the public. The Institute acts under the responsibility given to the ... VERVIEW 9 Strategic Principle 5. The Secretary of Energy and the Director of the Na- tional Science Foundation, working with the White House Office of Science and Technology Policy and the Office of Management...

Ngày tải lên: 14/03/2014, 10:20

... than, the proof of Theorem 7. First we recall the definition of certain canonical trees T α of order α for α<ω 1 (see e.g. [JO]). These form the frames upon which we will hang our bases. The ... for all |F |≤2 n and all choices of sign. Furthermore THE ISOMORPHISM CLASS OF A BANACH SPACE 427 exists. The sequence (˜x i ) is then a basis for the completion of (span (˜x i ), ·) and (˜x i ) ... Then c 0 embeds into X. We postpone the proof to complete first the Proof of Theorem 1. Assume that X is infinite dimensional and every isomorph of X is K-elastic. Then by Theorem 7, c 0 embeds into X....

Ngày tải lên: 15/03/2014, 09:20

Ngày tải lên: 15/03/2014, 18:20

Ngày tải lên: 16/03/2014, 14:20