Detecting palindromes, patterns, and borders in regular languages

Given a language L and a nondeterministic finite automaton M, we consider whether we can determine efficiently (in the size of M) if M accepts at least one word in L, or infinitely many words. Given that M accepts at least one word in L, we consider how long a shortest word can be. The languages L that we examine include the palindromes, the non-palindromes, the k-powers, the non-k-powers, the powers, the non-powers (also called primitive words), the words matching a general pattern, the bordered words, and the unbordered words.Comment: Full version of a paper submitted to LATA 2008. This is a new version with John Loftus added as a co-author and containing new results on unbordered word

Neighbouring residue effects on the ^(15)N chemical shifts of some aliphatic dipeptides

The ^(15)N chemical shifts of a number of simple aliphatic dipeptides have been determined in a aqueous solution and while the amine nitrogen shift is independent of the nature of the neighbouring residue, the peptide nitrogen shift shows a marked dependence upon the nature of the adjacent amino-acid

Australia's veterinarians and The Frawley review of 2002

This thesis examines the impact of a Commonwealth Government inquiry, the “Review of Rural Veterinary Services” on Australia’s veterinarians and the services they provide. Chaired by Peter Frawley, the inquiry became known as the Frawley Review and examined rural veterinary services, animal quarantine and veterinary education in Australia and made recommendations concerning all three. When Australia began as a penal colony of Great Britain in the 18th century, there was little need for veterinarians. This changed during the latter half of the 19th century with an increase in livestock and diseases. Australia’s first veterinary school was the Melbourne Veterinary College, a private facility, established in 1888. This school was subsequently incorporated into the University of Melbourne in 1909. A further three veterinary schools were established in the 20th century; however today, there are seven veterinary schools in the country and with a population of approximately 24 million, Australia now has more veterinary schools per capita than any comparable Western Nation. Since colonisation, Australia imported livestock from countries where major diseases occurred. However, it was not until the late 19th century that quarantine was considered necessary. With Federation, Australia’s Quarantine Act (1908) was promulgated and it wasn’t until 2016 that this Act was replaced with the Biosecurity Act (2015). Fortunately, when incursions of exotic diseases of livestock have occurred in Australia, they have failed to gain a foothold or were eliminated. During 2015 and 2016, the author conducted an on-line survey of registered veterinarians in Australia and face-to-face interviews of quarantine personnel and academics at all veterinary schools. In the first study, five hundred and fifty-five survey responses were received; the mean age of respondents was 45 and 64% were female. Eighty-seven percent were employed in practice, with the majority in urban, small animal practice, whilst the balance worked in various institutions. Less than 10% performed work on-farm. Fifty-eight percent worked full-time and 22% had taken significant time-out from veterinary service during their career. Forty one percent of respondents were dissatisfied with the income they received and nearly 20% were dissatisfied with their status as a veterinarian. More than half the respondents stated that they had been injured or acquired an illness whilst conducting their veterinary occupation. Respondents concluded that, although the Frawley Review had made valid observations, it had failed to beneficially influence veterinary services in this country. The second study was designed to secure data from veterinarians regarding the review’s impact on animal quarantine. Interviews were conducted with eight leaders of animal quarantine in Australia. Interviewees agreed that livestock quarantine was necessary and required the participation of veterinarians for its success. All expressed misgivings regarding the current status of animal disease quarantine, especially surveillance and monitoring. The participants concluded that although quarantine was essential, our ability to conduct it effectively was questionable and Frawley had done little to ameliorate the situation. The third study was designed to obtain data on the current status of Australia’s veterinary education by conducting interviews with Deans and Heads of Australia’s seven veterinary schools with 17 participating in the research. Interview questions included assessment of the Frawley Review, the purpose and funding of veterinary education, different curricula, student selection, different degrees and the oversupply of veterinary graduates. The consensus was that Frawley failed, not only to halt further schools being established in Australia, but also with its other recommendations relevant to veterinary education. It is concluded that, although veterinarians have functioned in Australia for over 100 years with the nascent profession beginning with great hope, a sense of purpose and confidence in its future, today, there is confusion as to its future role in society and the current models of delivering veterinary services, animal quarantine and veterinary education require modification

Misty Moon

Illustration of two people paddling in canoe at nighthttps://scholarsjunction.msstate.edu/cht-sheet-music/9217/thumbnail.jp

Making Fiction of Facts in the Israeli Spy Case

The authors make the case that Jonathan Pollard, the man convicted of spying for Israel, is again being condemned by new allegations by Martin Peretz in a New Republic article, and by retired Navy Capt. M. E. Bowman. The authors of these new assertions may not know more of the particulars than others in high places who have already publicly supported commuting Pollard\u27s sentence to time served

Patient-Psychotherapist Privilege: Acces to Clinical Records in the Tangled Web of Repressed Memory Litigation

The 1990s promise to be an era of mental health litigation whose outcomes that some predict will dwarf the settlements awarded recently in lawsuits over sexual improprieties between psychotherapists and their patients. One expert estimates that over 17,000 claims will be filed in the next decade, with litigation costs in excess of $250 million. These new cases emerged as therapy patients began to accuse fathers and mothers, uncles and grandfathers, former neighbors and teachers, psychotherapists and countless others of sexually abusing them years ago

Cooling and Trapping of Atomic Strontium

We present a detailed investigation of strontium magneto-optical trap (MOT) dynamics. Relevant physical quantities in the trap, such as temperature, atom number and density, and loss channels and lifetime, are explored with respect to various trap parameters. By studying the oscillatory response of a two-level 1S0–1P1 88Sr MOT, we firmly establish the laser cooling dynamics predicted by Doppler theory. Measurements of the MOT temperature, however, deviate severely from Doppler theory predictions, implying significant additional heating mechanisms. To explore the feasibility of attaining quantum degenerate alkaline-earth samples via evaporative cooling, we also present the first experimental demonstration of magnetically trapped metastable 88Sr. Furthermore, motivated by the goal of establishing the fermionic isotope 87Sr as one of the highest-quality, neutral-atom-based optical frequency standards, we present a preliminary study of sub-Doppler cooling in a 87Sr MOT. A dual-isotope (87Sr and 88Sr) MOT is also demonstrated

Single-Stage Sub-Doppler Cooling of Alkaline Earth Atoms

We report the first experimental study of sub-Doppler cooling in alkaline earth atoms (87Sr) enabled by the presence of nuclear spin-originated magnetic degeneracy in the atomic ground state. Sub-Doppler cooling in a σ+-σ− configuration is achieved despite the presence of multiple, closely spaced excited states. This surprising result is confirmed by an expanded multilevel theory of the radiative cooling force. Detailed investigations of system performance have shed new insights into (σ+-σ−) cooling dynamics and will likely play an important role in the future development of neutral atom-based optical frequency standards

Dynamics in a Two-Level Atom Magneto-Optical Trap

Alkaline-earth-metal atoms present an ideal platform for exploring magneto-optic trap (MOT) dynamics, enabling unique and definitive tests of laser cooling and trapping mechanisms. We have measured the trapping beam intensity, detuning, magnetic-field gradient, trap density, and lifetime dependence of the spring constant κ and damping coefficient α for a 1S0−1P1 88Sr MOT by fitting the oscillatory response of the atom cloud to a step-function force. We find that the observed behavior of κ and α provide a unified and consistent picture of trap dynamics that agrees with Doppler cooling theory at the level of 10%.Additionally, we demonstrate that the trapped atom temperature can be determined directly from measured value of κ and the trap size, in excellent agreement with free-expansion temperature measurements. However, the experimentally determined temperature is much higher than Doppler cooling theory, implying significant additional heating mechanisms