منابع مشابه
Earning your keep: succeeding in laboratory reimbursement.
The seventh Clinical Chemistry Forum of the American Association for Clinical Chemistry was held in Baltimore, Maryland, on December 4 and 5, 1997. Clinical Chemistry Fora have been oriented to addressing the management issues affecting clinical chemists and the clinical laboratory field. In this way, they complement the AACC’s targeted conferences on new technology (Oak Ridge) and applications...
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Neutron and X-ray scattering studies have provided strong evidence for coupled spatial modulations of charge and spin densities in layered nickelates and cuprates. The accumulated results for La2−xSrxNiO4+δ are consistent with the strongly-modulated topological-stripe concept. Clues from Nd-doped La2−xSrxCuO4 suggest similar behavior for the cuprates. The experimental results are summarized, an...
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Autonomous agents functioning in complex and rapidly changing environments can improve their task performance if they update and correct their world model over the life of the agent. Existing research on this problem can be divided into two classes. First, reinforcement learners that use weak inductive methods to directly modify an agent’s procedural execution knowledge. These systems are robus...
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186 LLE Review, Volume 92 Recently proposed superconducting single-photon detectors (SSPD’s), based on ultrathin, submicrometer-width NbN superconducting stripes, are characterized by picosecond response times, high quantum efficiency, broadband singlephoton sensitivity, and extremely low dark counts.1,2 The devices have immediately found a variety of applications ranging from noninvasive testi...
متن کاملSpontaneous symmetry breaking by charge stripes in the high pressure phase of superconducting La1.875Ba0.125CuO4.
In those cases where charge-stripe order has been observed in cuprates, the crystal structure is such that the average rotational symmetry of the CuO2 planes is reduced from fourfold to twofold. As a result, one could argue that the reduced lattice symmetry is essential to the existence of stripe order. We use pressure to restore the average fourfold symmetry in a single crystal of La1.875Ba0.1...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2014
ISSN: 1369-7021
DOI: 10.1016/j.mattod.2014.01.007