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Welcome to Ant LarvaPre-cancerous condition linked to chronic acid reflux faces several hurdles
Pre-cancerous condition linked to chronic acid reflux faces several hurdles
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| • | Health/Science Calendar |
| MONDAY, NOV. 12 Infectious cancers Harvard Medical School students continue their "Science in the News" seminar with a lecture about contagious cancers. At 6 p.m. in the Mildred Avenue Community Center in Mattapan. Repeated Wednesday at 7 p.m. in the Armenise Amphitheater at the medical school. Tuesday, Nov. 13 Green history The Massachusetts Historical Society will sponsor a discussion about ... | |
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| • | The Effects of Hydroxyethyl Starch 130/0.4 (6%) on Blood Loss and Use of Blood Products in Major Surgery: A Pooled Analysis of Randomized Clinical Trials |
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BACKGROUND: The effects of different types of hydroxylethyl starch (HES) on blood coagulation closely depend on their physicochemical properties. HES with lower molar substitution and a lower in vivo molecular weight interferes relatively little with hemostasis and therefore results in lower perioperative blood losses and red blood cell (RBC) transfusion. To test this hypothesis, we analyzed pooled data from all available studies in major surgery comparing 6% HES 130/0.4 and 6% HES 200/0.5 from waxy maize starch. METHODS: Estimated blood loss, drainage loss, calculated blood loss, transfused blood product volumes, and coagulation variables were examined for 24 h after the start of surgery. Groups were compared using analysis of variance, evaluating several covariates. RESULTS: Four-hundred-forty-nine patients from seven clinical trials were analyzed, 228 received HES 130/0.4, and 221 received HES 200/0.5. For HES 130/0.4 patients, when compared to HES 200/0.5 patients, the estimated blood loss was reduced by 404 mL [P = 0.006], drainage loss was 272 mL less [P = 0.009], and calculated RBC loss was 149 mL less [P = 0.003]. RBC transfusion volumes were also lower for HES 130/0.4 by 137 mL [P = 0.004]. In the early postoperative phase, HES 130/0.4 was found to exert significantly less effect on measures of coagulation, especially activated partial thromboplastin time and von Willebrand factor (antigen and ristocetin cofactor), than HES 200/0.5. CONCLUSIONS: Blood loss and transfusion requirements can be significantly reduced in major surgery when using third generation HES 130/0.4 (Voluven®) compared to second generation waxy maize starch HES 200/0.5. Since HES 130/0.4 and HES 200/0.5 were found similar regarding volume efficacy in other studies, HES 130/0.4 is recommended in this clinical setting. |
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| • | Impact of Sugar Beet Cyst Nematode, Heterodera schachtii, on Some Physiological Aspects of Two Sugar Beet Cultivars, Nemakill and 7233, in the Rhizosphere Condition |
| The impact of beet cyst nematodes, Heterodera schachtii, on some physiological aspects including proline, potassium and sodium in two sugar beet cultivars, a susceptible 7233 and a resistance Nemakill was evaluated in the rhizosphere condition. In this study a bioassay was conducted with sugar beet seedlings in the presence of different populations of the beet cyst nematodes, 0, 10, 20 juveniles 1-1 g. soil as a biostressor in glass tubes (20x3 cm Ø) in growth chamber, totally 36 tubes. The tubes were placed in a growth chamber with 16-h artificial light, eight fluorescent 40 watts, at 25 and 21°C at darkness and moistened regularly with a half Hoagland`s nutrient solution. The proline, potassium and sodium changes of treated and untreated plants were measured 45 days after nematodes` inoculation. In this stage, the root of plant was freed from soil and debrises by a fine jet of water stream and the number of developed females of nematodes counted on the root surface and recorded. Results of this study revealed that the proline in leaves, sodium in leaves and roots as well as potassium in roots were increased but K+ decreased in leaves in both cultivars as the population of nematodes increased in the soil. Results of this study indicated that a few number of nematodes` females was developed on Nemakill`s roots in comparison with the other treated and untreated susceptible cultivar in the rhizosphere condition. | |
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| • | nanotechnology, nano technology, nanoscience, nanotech, molecular nanotechnology, nanomaterials |
| We define nanoscience as the study of phenomena and manipulation of materials at atomic, molecular and macromolecular scales, where properties differ significantly from those at a larger scale; and nanotechnologies as the design, characterisation, production and application of structures. | |
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| • | meade.com - Meade Telescopes, Microscopes, Meade Instruments, Telescopes by Meade |
| astronomers, astronomy, astrophotography, binoculars, comets, constellations, coronado, digital camera binoculars, galaxies, mars the planet, mead, mead telescopes, meade, meade instruments, meade telescopes, microscopes, moons, optics, planets, redfield optics, simmons optics, solar systems, stars, telescopes, weaver optics | |
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| • | Confessions of an Alien Hunter by Seth Shostak |
Confessions of an Alien Hunter A Scientist's Search for Extraterrestrial IntelligenceHardcover, 320 pages | National Geographic | Biography & Autobiography; Science - Astronomy; Biography & Autobiography - Science & Technology | $27.00 | March 17, 2009 | 978-1-4262-0392-3 (1-4262-0392-6) |
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