Cold Fusion Still in State of Confusion: A government report recommends against setting up any special programs; meanwhile, cold fusion is still hot in a few labs     

Pool R 《Science (New York, N.Y.)》1989,245(4915):256

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some Companies Keep a Foot in the Door     

Pool R 《Science (New York, N.Y.)》1989,245(4915):256

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Good news for volcano watchers     

Kerr RA 《Science (New York, N.Y.)》1989,245(4915):255

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Chaos in a hydrogen atom     

P R 《Science (New York, N.Y.)》1989,243(4893):894

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Quantum chaos: enigma wrapped in a mystery     

Pool R 《Science (New York, N.Y.)》1989,243(4893):893-895

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High-tech astronomy: observational astrophysics     

Canizares CR 《Science (New York, N.Y.)》1989,244(4906):851

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Magnetic flux transport on the sun     

Wang YM  Nash AG  Sheeley NR 《Science (New York, N.Y.)》1989,245(4919):712-718

Although most of the magnetic flux observed on the sun originates in the low-latitude sunspot belts, this flux is gradually dispersed over a much wider range of latitudes by supergranular convective motions and meridional circulation. Numerical simulations show how these transport processes interact over the 11-year sunspot cycle to produce a strong "topknot" polar field, whose existence near sunspot minimum is suggested by the observed strength of the interplanetary magnetic field and by the observed areal extent of polar coronal holes. The required rates of diffusion and flow are consistent with the decay rates of active regions and with the rotational properties of the large-scale solar magnetic field.  相似文献   

Berkeley's Changing Student Populaton: Academic successes by a growing Asian population are exerting pressure on current admissions policies, as well as creating a new kind of racial tension on campus     

Buderi R 《Science (New York, N.Y.)》1989,245(4919):694-696

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Synthesizing Oils Is a Slippery Job: The coming generation of high-temperature automotive engines will bake today's best lubricants into carbon residue, so researchers are looking for new synthetic oils that can take the heat     

Pool R 《Science (New York, N.Y.)》1989,246(4929):444-446

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Alleviation of postanesthetic hypoxemia in the horse   总被引：1，自引：0，他引：1       下载免费PDF全文

McMurphy RM  Cribb PH 《The Canadian veterinary journal. La revue veterinaire canadienne》1989,30(1):37-41

This study was designed to investigate the effect of the nasotracheal insufflation of oxygen at a flow rate of 15 L/min on the arterial partial pressure of oxygen during the recovery period following inhalation anesthesia in the horse. It has been stated that this is a suitable flow rate to prevent postoperative hypoxemia but without any experimental evidence to support those statements. Horses being used for the study of healing of cartilage were anesthetized on two separate occasions. Following one period of anesthesia they were allowed to recover breathing room air, and following the other period of anesthesia oxygen was insufflated into the trachea at 15 L/min throughout the recovery period. This permitted each horse to act as its own control and allowed statistical analysis using Student's t-test for paired samples.

The insufflated horses had a higher arterial partial pressure of oxygen during the recovery period than did the noninsufflated horses (p < 0.05).

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