Phase Diffusion in Single-Walled Carbon Nanotube Josephson Transistors

We investigate electronic transport in Josephson junctions formed by single-walled carbon nanotubes coupled to superconducting electrodes. We observe enhanced zero-bias conductance (up to 10e^2/h) and pronounced sub-harmonic gap structures in differential conductance, which arise from the multiple Andreev reflections at superconductor/nanotube interfaces. The voltage-current characteristics of these junctions display abrupt switching from the supercurrent branch to resistive branch, with a gate-tunable switching current ranging from 50 pA to 2.3 nA. The finite resistance observed on the supercurrent branch and the magnitude of the switching current are in good agreement with calculation based on the model of classical phase diffusion

Testing Alternative Theories of the Property Price-Trading Volume Correlation

This article examines the correlation between the real housing price and trading volume. Contrary to the predictions of standard rational expectation models, a robust positive correlation between the two variables is identified. While no clear lead-lag relationship is found in the raw data, which is more consistent with the downpayment effect model, the medium-run component of the trading volume tends to lead (and Granger cause) the corresponding component of the property price, which is more consistent with the search theoretic model. An explanation for this difference in behavior is suggested and several future research directions are provided.

On the chromaticity of complete multipartite graphs with certain edges added

Let P.G; / be the chromatic polynomial of a graph G. A graph G is chromatically unique if for any graph H, P.H; / D P.G; / implies H is isomorphic to G. For integers k 0, t 2,denote by K..

Cyclin F Is Degraded during G2-M by Mechanisms Fundamentally Different from Other Cyclins

Cyclin F, a cyclin that can form SCF complexes and bind to cyclin B, oscillates in the cell cycle with a pattern similar to cyclin A and cyclin B. Ectopic expression of cyclin F arrests the cell cycle in G2/M. How the level of cyclin F is regulated during the cell cycle is completely obscure. Here we show that, similar to cyclin A, cyclin F is degraded when the spindle assembly checkpoint is activated and accumulates when the DNA damage checkpoint is activated. Cyclin F is a very unstable protein throughout much of the cell cycle. Unlike other cyclins, degradation of cyclin F is independent of ubiquitination and proteasome-mediated pathways. Interestingly, proteolysis of cyclin F is likely to involve metalloproteases. Rapid destruction of cyclin F does not require the N-terminal F-box motif but requires the COOH-terminal PEST sequences. The PEST region alone is sufficient to interfere with the degradation of cyclin F and confer instability when fused to cyclin A. These data show that although cyclin F is degraded at similar time as the mitotic cyclins, the underlying mechanisms are entirely distinct

Scaling laws for dielectric window breakdown in vacuum and collisional regimes

The scaling laws for the initiation time of radio frequency (rf) window breakdown are constructed for three gases: Ar, Xe, and Ne. They apply to the vacuum, to the multipactor-triggered regime, and to the collisional rf plasma regime, and they are corroborated by computer simulations of these three gases over a wide range of pressures. This work elucidates the key factors that are needed for the prediction of rf window breakdown in complex gases, such as air, at various pressures.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/87804/2/261501_1.pd

I think it\u27s biblically wrong, but temptation gets the better of me : A survey on out-of-control sexual behavior in a Christian cohort of men in the UK

The current study aims to better understand influences on men within the UK Christian community on their engagement with pornography and prostitution. The authors utilized the Carnes (2012) survey to examine the landscape of sexual knowledge and behaviours, and to identify symptoms, and the propensity towards, “out-of-control sexual behavior” among participants. Data from a survey sent to the Christian community through church networks and word of mouth was used for this study. Of the 491 men who participated, the majority (94%, 460) described their personal Christian faith as “strong.” Despite the Christian faith community\u27s moral code of conduct, the survey results showed a gap in self-awareness and understanding of members’ thoughts, beliefs, and conduct. Although almost three-quarters (74%, 361) of participants viewed pornography negatively, nearly half (45%, 220) admitted to using pornography at least occasionally. Many participants (31%, 152) indicated that they learned about sex through watching pornography. The survey also revealed that 10% (51) of participants had engaged with a prostitute for sex. Additionally, 21% (105) of participants believed that erotic massage was not prostitution. Using the Carnes (2012) framework, the survey found that over half of the survey participants (53%, 258) had a propensity towards “out-of-control sexual behavior”. In relation to the church, more than half (55%, 268) of participants knew other Christian men who used pornography, and 25% (125) feared church discipline if they shared their use of pornography and prostitution. These results suggest that more programs and information are needed within the Christian community to build a culture of trust and accountability among members regarding sexual issues

Applying the dual Filial Piety Model in the United States: A comparison of Filial Piety between Asian Americans and Caucasian Americans

The definition and measurement of filial piety in existing research primarily focuses on the narrow conceptualizations of Asian filial piety, which would inflate cultural differences and undermine cultural universals in how people approach caring for their elderly parents. Employing the Dual Filial Piety Model (DFPM), this study aimed to examine the relationship between filial piety and attitude toward caring for elderly parents beyond the Asian context. In our study (N = 276), we found that reciprocal filial piety (RFP) does not differ across cultures while authoritarian filial piety (AFP) does. We also found that collectivism, rather than ethnicity, predicted RFP and AFP, which in turn predicted positive attitude toward caring for elderly parents. Our work demonstrates the cross-cultural applicability of the DFPM and highlights the universal and culture-specific aspects of filial piety

Is there a Role for Preoperative Infusion or Intraoperative Cholangiography?

Background: There has been a resurgence of interest in recent years in preoperative infusion cholangiography (PIC). The role of routine PIC compared to routine intraoperative cholangiography (IOC) has not been clearly defined