Some effects of X-irradiation on the life cycle of "Schistosomatium douthitti" (Cort)

Thesis (Ph.D.)--Boston UniversitySchistosomiasis ranks high on the list of diseases affecting large numbers of people throughout the world. With the increase of transoceanic travel and the discovery of new reservoir hosts, the problem has become more complex. Investigation and experimentation have increased correspondingly. Schistosomatium douthitti (Cort), non-pathogenic for man, but with a life cycle similar to forms parasitizing man, has been the subject of wide study within the last ten years. Although invertebrates from Protozoa to Arthropoda have been exposed to X-irradiation, parasitic forms have been used in very few instances. Rabbits and dogs infected with Schistosoma japonicum (Katsurada) were X-rayed by Kawamura et al. (1924). Ascaridia galli (Schrank), Trichina and Rhabditis have been irradiated (Babero, 1952; Gould et al., 1953; Thomas and Quastler, 1949). The present study was undertaken to determine what effect X-irradiation would have upon the life cycle of this digenetic trematode in the laboratory, and to compare the sensitivity of eggs with that of cercari ae to varying dosages of X-rays [TRUNCATED

A survey of faculty attitudes: post-secondary students with psychiatric vs. non-psychiatric disabilities

Research shows that students with psychiatric disabilities attending postsecondary institutions are less likely to seek supports using the office of disability services than are students with other disabilities. One of the reasons that students give for not disclosing their disabilities is a belief that they will face stigmatizing attitudes as a result of such disclosure. While it is known that negative attitudes toward psychiatric disabilities exist within the general population, there is a paucity of research that profiles attitudes toward post-secondary students who have psychiatric disabilities, particularly in contrast to attitudes toward post-secondary students with other disabilities. The present study therefore investigated the attitudes of faculty regarding post-secondary students with psychiatric and other disabilities using an internet-based quantitative survey method. Results confirmed previous findings that attitudes toward non-visible disabilities are less positive than they are toward visible disabilities, and that within the non-visible category, attitudes toward psychiatric disabilities are more negative than they are toward learning disabilities. Attitudes were improved by providing faculty members with either a term identifying a particular type of disability or detailed disability information, suggesting that disclosure can reduce the effects of stigmatization. Several characteristics that were correlated with disability attitudes in previous studies were investigated as well. Of these, gender and access to disability information exerted the strongest influence on disability attitudes. Suggestions are given for combating the identified issues via disability training for faculty members

High coherence hybrid superconducting qubit

We measure the coherence of a new superconducting qubit, the {\em low-impedance flux qubit}, finding $T_2^* \sim T_1 \sim 1.5\mu$s. It is a three-junction flux qubit, but the ratio of junction critical currents is chosen to make the qubit's potential have a single well form. The low impedance of its large shunting capacitance protects it from decoherence. This qubit has a moderate anharmonicity, whose sign is reversed compared with all other popular qubit designs. The qubit is capacitively coupled to a high-Q resonator in a $\lambda/2$ configuration, which permits the qubit's state to be read out dispersively

End of One Way

Describes the role of three South Minneapolis community-based organizations. Demonstrates how the organizations form partnerships and share leadership with their communities. Explores a set of themes derived from each example of community engagement

A simple all-microwave entangling gate for fixed-frequency superconducting qubits

We demonstrate an all-microwave two-qubit gate on superconducting qubits which are fixed in frequency at optimal bias points. The gate requires no additional subcircuitry and is tunable via the amplitude of microwave irradiation on one qubit at the transition frequency of the other. We use the gate to generate entangled states with a maximal extracted concurrence of 0.88 and quantum process tomography reveals a gate fidelity of 81%