A Note on Stable States of Dipolar Systems at Low Temperatures

In the past several years, many important innovations in nanotechnology were made. Today it becomes possible to make nanosize magnetic particles, and development of high storage-density magnetic device is desired. In such a magnetic particle system, dipole interaction plays the main role. In this note, we consider stable states of dipolar systems at low temperature: Some systems show ``antiferromagnetic structure'', and others show magnetic domain structure, depending on lattice shapes.Comment: 5 pages including 5 eps figures, to appear in "Computer Simulation Studies in Condensed Matter Physics XVIII", Eds. D. P. Landau, S. P. Lewis, and H.-B. Sch\"{u}ttler (Springer Verlag, Heidelberg, Berlin

Telic-paratelic Dominance and State Effects on Responses to Resistance and Endurance Exercise

We examined the influence of opposite states of mind (the “telic” vs. “paratelic” state) and dominances (personality characteristics that reflect a preference for one of these states) on emotion and stress responses to exercise. Telic dominant participants completing resistance exercise in the telic state condition reported decreased relaxation from pre- to post-exercise. All participants reported more pleasant emotions when performing endurance exercise in the telic state condition. In contrast, in the paratelic state condition, they reported increased anxiety. These results lend mixed support for previous research but suggest that meta-motivational state is more influential than dominance.fals

Comparison of metamotivational dominance and cultural identity between Japanese National Team and Māori All Blacks rugby players

This pilot study used a reversal theory framework to examine metamotivational dominance of rugby players on the Māori All Blacks (MABs) squad of New Zealand and the Japanese National Team (JNT). Since the two groups have different cultural team demographics, cultural identity was also examined. Twenty six players from the MABs and 31 from the JNT completed questionnaires on metamotivational dominance and cultural identity. In terms of metamotivational dominance, the findings indicated that the MABs were more playful minded and spontaneous oriented than the JNT. Regarding cultural identity, the JNT showed a greater knowledge of their own culture and higher comfort level in their cultural context, while the MABs felt more positive and willing to sustain their own culture. The motivational personality differences between the teams may reflect the style of play that is valued within each team culture that is, flair, spontaneity and high-risk play within Māori rugby, and structure, team unity and conformity within the JNT. This suggests that metamotivational dominance of teams and players is influenced by the cultural identity of both the individuals and the group, which may have a further impact on team cohesion and performance

Finite dipolar hexagonal columns on piled layers of triangular lattice

We have investigated, by the Monte Carlo simulation, spin systems which represent moments of arrayed magnetic nanoparticles interacting with each other only by the dipole-dipole interaction. In the present paper we aim the understanding of finite size effects on the magnetic nanoparticles arrayed in hexagonal columns cut out from the close-packing structures or from those with uniaxial compression. In columns with the genuine close-packing structures, we observe a single vortex state which is also observed previously in finite 2-dimensional systems. On the other hand in the system with the inter-layer distance set $1/\sqrt{2}$ times of the close-packing one, we found ground states which depend on the number of layers. The dependence is induced by a finite size effect and is related to a orientation transition in the corresponding bulk system.Comment: 3 pages, 2 figures. Proceedings of the International Conference on Magnetism 2006 (ICM2006) conference. To appear in a special volume of Journal of Magnetism and Magnetic Material

Motivational State Does Not Affect All-Out Short Duration Exercise Performance

Introduction: The preferred motivational state (telic or paratelic), i.e., dominance, has been linked to the type of activity sports people participate in. As such, positive or negative performance may occur if there is a mismatch between the activity and the required state. This study set out to examine the effects of altering telic or paratelic motivational states and thus induce the ?misfit effect? in order to quantify the influences on emotions and performance during allout, short duration cycle performance. Methods: Based on paratelic dominance scale (PDS) scores participants completed the Wingate anaerobic test (WAT) on two separate occasions in their preferred and non-preferred motivational state. Special video display method was used to manipulate participants to their non-preferred motivational state and verified via the telic state measure (TSM) test prior to performing the Wingate test (WT). Changes in emotion and stress levels were recorded using the tension and effort stress inventory (TESI) along with heart rate variability (HRV) data obtained from electrocardiogram (ECG). Peak power (PP), mean power (MP) and fatigue index (FI) obtained from the WT were used to assess all-out athletic performance. Results: The main findings show that there was no link between dominant motivational state and anaerobic cycle performance (p>0.05) and that successful manipulation of motivational state (p<0.05) did not influence perceived levels or physiological levels of stress (p>0.05) and did not affect all-out, short duration cycle performance (p<0.05). Conclusion: As such, coaches, support staff and athletes do not have to worry about a particular state in regards to telic or paratelic in an acute time frame, as long as the athlete?s arousal levels and emotional conditions are optimal.publishersversionPeer reviewe

Surgical Punctal Occlusion; Combined Lacrimal Canaliculi Cauterization and Punctal Suturing for Severe Dry Eye

Purpose: To evaluate the treatment outcome of surgical punctal occlusion with combined canaliculi ablation and punctal suturing in patients with severe dry eye. Methods: Eleven eyes of seven patients were diagnosed with severe dry eye with decreased lacrimal secretion and were refractory to treatment with various eye drops and/or had repeatedly experienced loss of punctal plugs, and continued to experience subjective symptoms received surgical punctal occlusion. In 20 puncta, lacrimal canaliculi ablation was performed along the entire length of the lacrimal canaliculus where a diathermy needle could be inserted. After resection of the annulus fibrosus in the peri-punctal area, tight cross-stitch suturing of the puncta was performed with 8-0 absorbent thread. Visual acuity, corneal staining score according to the area (A) and density (D) classification, and Schirmer tear test (STT); tear break up time (tBUT); and subjective symptoms assessed by the University of North Carolina (UNC) and Dry Eye Management Scale were compared before and one year after surgery. Results: Recanalization occurred in 1/20 puncta (5.0% at month 5) in 1/11 eyes. Student’s t-test showed significant improvement at one year compared with preoperative values for LogMAR value (P = 0.019), corneal staining score A (P = 0.00003) and D (P = 0.0003), STT (P = 0.004), and subjective symptoms (P = 0.015). No change was shown in tBUT and no serious adverse event occurred. Conclusion: This improved, minimally invasive surgical procedure has a low recanalization rate and achieves both objective and subjective improvements at one year. Keywords: Cauterization; Dry Eye; Lacrimal Canaliculi; Lacrimal Puncta; Punctal Occlusio

Optical resolution via catalytic generation of chiral auxiliary

A new catalytic method for separating enantiomers of racemic compounds is proposed. Catalytic asymmetric addition of chiral trans-2-substituted cyclohexanols to imines provided diastereomeric mixtures of aminals, and the subsequent separation of the enantiomers by silicagel column chromatography and the hydrolysis of the aminals produced the alcohols in an optically active form

Desymmetrization of acid anhydride with asymmetric esterification catalyzed by chiral phosphoric acid

Asymmetric desymmetrization of σ-symmetric acid anhydrides was achieved with chiral phosphoric acid as a Brønsted acid catalyst. The key of success was finding of benzhydrol and 2,2-diphenylethanol as the nucleophiles of choice. The corresponding half esters were obtained in good yields with high selectivity