The Turtle Head Immobilization System (THIS): A Tool for Faster and Safer Handling and Processing of Aggressive Turtle Species

The turtle head immobilization tool (THIS) is an efficient and cost effective tool to aid in the processing of large, aggressive turtles such as the Eastern Snapping Turtle (Chelydra serpentina). THIS aids in the reduction of aggressive behaviors by calming the animal during processing and minimizing injuries to the turtle and handlers. This simple tool also streamlines the processing itself, by allowing researchers to focus on measurements and markings, instead of having to maintain the constant vigilance often needed to work safely around these animals

The Turtle Head Immobilization System (THIS): A Tool for Faster and Safer Handling and Processing of Aggressive Turtle Species

The turtle head immobilization tool (THIS) is an efficient and cost effective tool to aid in the processing of large, aggressive turtles such as the Eastern Snapping Turtle (Chelydra serpentina). THIS aids in the reduction of aggressive behaviors by calming the animal during processing and minimizing injuries to the turtle and handlers. This simple tool also streamlines the processing itself, by allowing researchers to focus on measurements and markings, instead of having to maintain the constant vigilance often needed to work safely around these animals

Number-of-Particle Fluctuations and Stability of Bose-Condensed Systems

In this paper we show that a normal total number-of-particle fluctuation can be obtained consistently from the static thermodynamic relation and dynamic compressibility sum rule. In models using the broken U(1) gauge symmetry, in order to keep the consistency between statics and dynamics, it is important to identify the equilibrium state of the system with which the density response function is calculated, so that the condensate particle number $N_0$, the number of thermal depletion particles $\tilde{N}$, and the number of non-condensate particles $N_{nc}$ can be unambiguously defined. We also show that the chemical potential determined from the Hugenholtz-Pines theorem should be consistent with that determined from the equilibrium equation of state. The $N^{4/3}$ anomalous fluctuation of the number of non-condensate particles is an intrinsic feature of the broken U(1) gauge symmetry. However, this anomalous fluctuation does not imply the instability of the system. Using the random phase approximation, which preserves the U(1) gauge symmetry, such an anomalous fluctuation of the number of non-condensate particles is completely absentComment: 9 pages, submitted to PR

English music theory c.1590-c.1690 : the modal systems, changing concepts, and the development of new classification systems

The thesis examines the modal classification systems and the changes which lead to the development of new systems during the period c.1590 to c.1690 with particular reference to English music theory. It consists of three parts the first of which considers the English writings on music, their readership, their sources, and the basic ideas for the understanding of the traditional Gamut, solmisation system and hexachordal theory. PART 2 examines the methods employed by theorists wishing to categorise music either according to the 8-mode system or the 12-mode system. By studying Italian and German sources referred to in English writings on music, it is seen that the English theorists deal with the modal classification systems in a similar way. Furthermore, the differences between Morley's popular tract (1597), adhering to the 12-mode system, and Dowland's translation (1609) of the small tract by Ornithoparchus, promoting the 8-mode system, are also discussed. PART 3 begins by tracing the development of a new interpretation and definition of the octave as a circular principle. This leads to the theoretical recognition of the invertibility of intervals. In England, in particular the growing circle of natural philosophers and the Royal Society of London seem to play an important role by asking inquisitive questions. Seeing the octave as a circle (and hence also the Gamut), together with a stronger emphasis on the bass as the fundamental part of a composition, encouraged a new interpretation of triads and inversions. The increasing use of fixed pitches versus relative pitches also influenced the interpretation of transposition. The distinctions essential for a modal classification disappeared because of many of these new concepts. Because of the irregularities of the traditional 8-mode system and the determination to adapt it more closely to musical practice, new 8-mode systems were proposed. However, simpler classification systems were also employed as can be seen in many indices in MSS. These systems indicate the final note either together with the transpositional system (i.e. cantus mollis or durus) or with the third above (major or minor). Albeit the invertibility of intervals was acknowledged in the beginning of the seventeenth century, theorists still adhered to the concept of the senario, strongly promoted by Zarlino (1558). The senario argument led to the pairing of major imperfect consonances in opposition to minor imperfect consonances (i.e. two scale types), thus suggesting that the invertibility of intervals was not recognised. The argument was still used by English theorists and natural philosophers at the end of the seventeenth century. However, the two scales were now not only distinguished by the imperfect consonances but also by whether the seventh degree of the scale was major or minor. Thus the theoretical recognition of the major and minor keys was established

Anomalous heat conduction and anomalous diffusion in nonlinear lattices, single walled nanotubes, and billiard gas channels

We study anomalous heat conduction and anomalous diffusion in low dimensional systems ranging from nonlinear lattices, single walled carbon nanotubes, to billiard gas channels. We find that in all discussed systems, the anomalous heat conductivity can be connected with the anomalous diffusion, namely, if energy diffusion is $\sigma^2(t)\equiv =2Dt^{\alpha} (0<\alpha\le 2)$, then the thermal conductivity can be expressed in terms of the system size $L$ as $\kappa = cL^{\beta}$ with $\beta=2-2/\alpha$. This result predicts that a normal diffusion ($\alpha =1$) implies a normal heat conduction obeying the Fourier law ($\beta=0$), a superdiffusion ($\alpha>1$) implies an anomalous heat conduction with a divergent thermal conductivity ($\beta>0$), and more interestingly, a subdiffusion ($\alpha <1$) implies an anomalous heat conduction with a convergent thermal conductivity ($\beta<0$), consequently, the system is a thermal insulator in the thermodynamic limit. Existing numerical data support our theoretical prediction.Comment: 15 Revtex pages, 16 figures. Invited article for CHAOS focus issue commemorating the 50th anniversary of the Fermi-Pasta-Ulam (FPU) mode

Tunneling Time Distribution by means of Nelson's Quantum Mechanics and Wave-Particle Duality

We calculate a tunneling time distribution by means of Nelson's quantum mechanics and investigate its statistical properties. The relationship between the average and deviation of tunneling time suggests the exsistence of ``wave-particle duality'' in the tunneling phenomena.Comment: 14 pages including 11 figures, the text has been revise

Funding Universal Service: The Effect of Telecommunications Subsidy Programs on Competition and Retail Prices

There is general concern that producer subsidies distort competition. We examine a telecommunications subsidy system that transfers money from low cost regions to high cost regions of the U.S. Even though the system is designed to be competitively neutral, we find evidence that the system, combined with carrier of last resort policies, promotes cream skimming by entrants in low cost areas and less entry in high cost areas, where incumbents are more likely than entrants to receive subsidies. We are unable to rule out the possibility that state regulatory policies favor incumbents in states that are net beneficiaries of the subsidy system

Direct Observation of Sub-Poissonian Number Statistics in a Degenerate Bose Gas

We report the direct observation of sub-Poissonian number fluctuation for a degenerate Bose gas confined in an optical trap. Reduction of number fluctuations below the Poissonian limit is observed for average numbers that range from 300 to 60 atoms.Comment: 5 pages, 4 figure

Condensation of Ideal Bose Gas Confined in a Box Within a Canonical Ensemble

We set up recursion relations for the partition function and the ground-state occupancy for a fixed number of non-interacting bosons confined in a square box potential and determine the temperature dependence of the specific heat and the particle number in the ground state. A proper semiclassical treatment is set up which yields the correct small-T-behavior in contrast to an earlier theory in Feynman's textbook on Statistical Mechanics, in which the special role of the ground state was ignored. The results are compared with an exact quantum mechanical treatment. Furthermore, we derive the finite-size effect of the system.Comment: 18 pages, 8 figure