نتایج جستجو برای: ascension
تعداد نتایج: 1522 فیلتر نتایج به سال:
Anisotropy in the arrival directions of cosmic rays with energies above 10eV is studied using data from the Akeno 20 km array and the Akeno Giant Air Shower Array (AGASA), using a total of about 114,000 showers observed over 11 years. In the first harmonic analysis, we have found strong anisotropy of ∼ 4% around 10eV, corresponding to a chance probability of ∼ 0.2% after taking the number of in...
We present tomographic evidence for the existence of deep-mantle thermal convection plumes. P-wave velocity images show at least six well-resolved plumes that extend into the lowermost mantle: Ascension, Azores, Canary, Easter, Samoa, and Tahiti. Other less well-resolved plumes, including Hawaii, may also reach the lowermost mantle. We also see several plumes that are mostly confined to the upp...
This Highlight explores the evolution of applications of mass spectrometric technologies in the context of natural products research since the 1970's. The central themes are the analysis of mixtures, dereplication (identification) and structure determination. The ascension of HPLC as the method of choice for the analysis of pharmaceuticals was a driving force for the development of interfaces f...
Abstract C. trachomatis infections in women may cause pelvic inflammatory disease, chronic pain, and infertility. In the mouse model, genital Chlamydia disseminates systemically to infect spleen. Removal of spleen (splenectomy) abrogates hydrosalpinx pathology female reproductive tract (FRT), although it does not affect FRT clearance. Ascension upper (uteri, ovaries, oviducts) is critical for d...
This work is about designing Pobot V2, a robot capable to climb poles with a cylindrical or conical shape. It is original because of its rolling self-locking concept: rolling allows continuous ascension whereas self-locking guarantees a null energy consumption while staying still on the pole. The robot is also capable to avoid tangential obstacles, to cross small collars and to regulate passive...
Dr. Slosar is director, ethics, Ascension Health, St. Louis. I t is sometimes said that health care ethics as a profession is in an early stage of its maturation process. If this is true, it can also be said that organizational ethics in health care is just now beginning to emerge from its earliest stage of development. In its infancy, organizational ethics was generally viewed as synonymous wi...
We give an explicit construction of the increasing tree-valued process introduced by Abraham and Delmas using a random point process of trees and a grafting procedure. This random point process will be used in companion papers to study record processes on Lévy trees. We use the Poissonian structure of the jumps of the increasing tree-valued process to describe its behavior at the first time the...
Alpheus cedricisp. n. is described based on two specimens collected under rocks while scuba diving off the coast of Ascension Island, central Atlantic Ocean. The new species belongs to the Alpheus macrocheles (Hailstone, 1835) species complex and appears to be most closely related to the eastern-central Atlantic Alpheus macrocheles, the western Atlantic Alpheus amblyonyx Chace, 1972, and the ea...
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