12,377 research outputs found
B-Physics at the Tevatron (Proceedings of PASCOS2010)
We report on recent B-Physics results from the Tevatron. The topics covered
include measurement of the polarization amplitudes in ,
the search for rare flavor-changing neutral-current decays, CP violation in
and semileptonic decays, and a new measurement
of the like-sign asymmetry in dimuon events.Comment: 6 pages, proceedings paper, 16th International Symposium on
Particles, Strings, and Cosmology, Valencia, Spain, July 19 - 23, 201
Superconducting re-entrant cavity transducer for a resonant bar gravitational radiation antenna
Copyright @ American Institute of PhysicsA 10‐GHz superconducting niobium re‐entrant cavity parametric transducer was developed for use in a cryogenic 1.5‐tonne Nb resonant bar gravitational radiation antenna. The transducer has a very high electrical Q (6×105 at 4.2 K), and was operated at high cavity fields without degrading the Q. A very high electromechanical coupling between the antenna and the transducer was therefore achieved. The highest coupling attained, constrained by the available pump power, was 0.11. If the transducer were to be operated in conjunction with a wideband impedance matching element, an antenna bandwidth comparable to the frequency of the antenna would be attained. The temperature dependence of the Q of the transducer was in good agreement with theory. At temperatures above about 6 K the Q was degraded by the increase in the BCS surface resistance, while at lower temperatures the Q was limited by radiative losses
Parthenolide eliminates leukemia-initiating cell populations and improves survival in xenografts of childhood acute lymphoblastic leukemia
Key Points
First report demonstrating in vivo elimination of multiple LIC populations from childhood ALL cases using animal models. In vivo models of leukemia are essential for drug evaluation studies.</jats:p
Severe or Pervasive: An Analysis of Who, What, and Where Matters When Determining Sexual Harassment
In the middle of Herman Cain\u27s campaign for the 2012 U.S. Republican Party presidential nomination, multiple women who were once Cain\u27s coworkers came forward with allegations of sexual harassment. Cain immediately deemed the allegations totally baseless and totally false. \u27 However, after continued questioning about whether his previous actions were inappropriate, Cain responded, In my opinion no, but as you would imagine, it\u27s in the eye of the person who thinks that maybe I crossed the line. Unfortunately, Cain\u27s vague and evasive response is evocative of current sexual harassment law, which generally lacks clarity and is often dependent on individual perceptions.
The Equal Employment Opportunity Commission ( EEOC ) did not recognize sexual harassment in the workplace as a violation of Title VII of the Civil Rights Act of 1964 until 1980, and the Supreme Court did not define sexual harassment until Meritor Savings Bank v. Vinson in 1986. In Meritor, the Court defined actionable sexual harassment as harassment that must be sufficiently severe or pervasive \u27to alter the conditions of [the victim\u27s] employment and create an abusive working environment.\u27 Today, the Court recognizes two forms of sexual harassment: quid pro quo and hostile work environment. Quid pro quo harassment occurs when a supervisor demands sexual favors from an employee in return for advancement or continued employment in the workplace. Hostile work environment harassment occurs when workplace harassment is so severe or pervasive that it alters the conditions of employment. This latter form of harassment is incredibly difficult for most courts to define, as they must determine what actions meet the vague standard of severe or pervasive. The task is especially difficult because individuals have different perceptions of what behaviors are severe enough to constitute harassment
Carbamazepine on a carbamazepine monolayer forms unique 1D supramolecular assemblies
High-resolution STM imaging of the structures formed by carbamazepine molecules adsorbed onto a pseudo-ordered carbamazepine monolayer on Au(111) shows the formation of previously unreported 1-dimensional supramolecular assemblies
Suppressive Therapy In The Control Of Bilharziasis: A Comparative Trial In African School Children
A CAJM article on the control of bilharzia-sis in Zimbabwean (Rhodesian) African children.One of the major problems facing the health service in any country which has a high prevalence of bilharziasis is the shortage of medical personnel required for the successful treatment of the large numbers of people who show infection. However, if a totally safe regime involving the administration of relatively innocuous drug at low dosages over long periods of time to control or suppress the level of infection in the person, the administration of the drug could then be left to the teachers or to other responsible members of the community. It is in this context that the policy of suppressive therapy or management of schistosome infections shows its greatest attraction
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