Recent developments in chiral and spin polarization effects in heavy-ion collisions

We give a brief overview of recent theoretical and experimental results on the chiral magnetic effect and spin polarization effect in heavy-ion collisions.We present updated experimental results for the chiral magnetic effect and related phenomena.The time evolution of the magnetic fields in different models is discussed.The newly developed quantum kinetic theory for massive fermions is reviewed.We present theoretical and experimental results for the polarization of K hyperons and the q00 value of vector mesons.

A key factor to the spin parameter of uniformly rotating compact stars: crust structure

We study the dimensionless spin parameter j ≡ cJ/（GM2） of different kinds of uniformly rotating compact stars, including traditional neutron stars, hyperonic neutron stars and hybrid stars, based on relativistic mean field theory and the MIT bag model. It is found that j ~ 0.7, which had been suggested in traditional neutron stars, is sustained for hyperonic neutron stars and hybrid stars with M 〉 0.5 MG. Not the interior but rather the crust structure of the stars is a key factor to determine jmax for three kinds of selected compact stars. Furthermore, a universal formula j = 0.63（f/fK） -- 0.42（f/fK）2 ＋ 0.48（f/fK）z is suggested to determine the spin parameter at any rotational frequency f smaller than the Keplerian frequency fK.

Revisiting the spin effects induced by thermal vorticity

We revisit the spin effects induced by thermal vorticity by calculating them directly from the spin-dependent distribution functions.For spin-1/2 particles,we provide the polarization up to the first order of thermal vorticity and compare it with the usual results calculated from the spin vector.For spin-1 particles,we show that all the non-diagonal elements vanish and there is no spin alignment up to the first order of thermal vortcity.We present the spin alignment at second-order contribution from thermal vorticity.We also show that the spin effects for both Dirac and vector particles receive an extra contribution when the spin direction is associated with the momentum of the particle.

加强灌注的枕-颈-胸穿支皮瓣在下面部和颈部重建术中的应用

背景与目的枕一颈．胸皮瓣在枕叶区有局部的皮肤蒂，皮瓣远端在胸肌区。枕．颈一胸皮瓣的一个缺点是皮瓣长度有限。为克服这一不足，可以使用加强灌注穿支的手法来扩大皮瓣的长度。本研究的目的是介绍加强灌注穿支的枕．颈．胸皮瓣在面颈部重建术中的应用，并讨论加强灌注穿支的手法和穿支解剖学。方法回顾分析所有面颈部重建术中使用的加强灌注穿支的枕．颈一胸皮瓣。结果所有9例患者中，第二乳内动脉穿支与枕一颈．胸皮瓣尾部连接，对对侧面动脉受体血管加强灌注。皮瓣的平均大小为22．6cm×6．2cm，无任何皮瓣损失。利用薄且柔韧的局部皮肤组织覆盖延伸至对侧较大范围的缺损是可行的。所有患者术后6个月对功能和美观均满意。结论内乳动脉加强灌注穿支的枕。颈．胸皮瓣可当做双蒂穿支皮瓣的一种类型，且可提供可靠的皮瓣血供。通过使用加强灌注穿支的手法，我们可以根据缺损的形状调整并扩大皮瓣的长度。（循证医学证据等级：Ⅳ级，疗法）

Clinical observation of acupuncture bloodletting at Ashi points on local swelling and pain after snakebite

Objective:To evaluate the clinical therapeutic effect of acupuncture bloodletting therapy on local swelling and pain of snakebite in the patients bitten by snakes.Methods:A total of 106 patients with trimeresurus stejnegeri bite were randomly divided into two groups,a conventional treatment group and a conventional treatment combined with bloodletting therapy group,53 cases in each one.In the conventional treatment group,the convention treatment of western medicine was adopted.In the conventional treatment combined with bloodletting therapy group,on the base of the conventional treatment,bloodletting therapy was applied at Ashi points selected at the tender points around the wound.The intervention and observation were performed not less than 7 days in two groups.Before and after treatment,swelling and pain degrees were measured and remission time of both the limb swelling and pain were recorded in the patients.Results:Compared with the values on day 1 of treatment,swelling degree and visual analogue scale(VAS) score of the upper and lower limbs were all lower on day 3 and day 7 of treatment in the patients of the two groups(all P <0.05).Compared with the conventional treatment group,swelling degree and VAS score of the upper and lower limbs were all lower in the values of the conventional treatment combined with bloodletting therapy group on day 3 and day 7 of treatment respectively(all P <0.05).The remission time of either limb swelling or pain in the patients of the conventional treatment combined with bloodletting therapy group was shorter than the conventional treatment group respectively(both P <0.05).Conclusion:Acupuncture bloodletting therapy can effectively relieve the local swelling and pain caused by snakebite,promote the recovery of limb function,shorten the treatment course and improve the clinical therapeutic effect.

Growth of single crystal K_3Y_3(BO_3)_4 with low-symmetry structure and multi-type of substitutional sites

Single crystals of K3Y3（BO3）4 were grown using the KBO2, LiF, and Li2CO3 as the fluxes by the top-seed solution method. The K3Y3（BO3）4 can be an excellent host for doping of Yb3＋, because there are six low-symmetric yttrium atoms in one unit-cell of K3Y3（B 03）4. The growth of K3Y3（BO3）4 was studied in detail, and a good crystal with sizes of 24 mm × 15 mm× 8 mm was grown successfully below 900 ℃. Some characteristics, such as the X-ray dif- fraction, infrared spectroscopy, and thermal analysis, were also performed.