疣状播散性盘状红斑狼疮1例

1病历摘要患者男，40岁。面颈部、胸背部、双上肢及手背斑块伴瘙痒4年余。患者4年前无明显诱因鼻翼出现红色斑丘疹伴瘙痒，当时未诊治。随后斑丘疹逐渐增多。波及到面部、胸背部、双上肢及手背，出现双手活动明显受限并伴有疼痛、毛发变稀疏及左眼视物模糊等，曾在西宁多家医院就诊，具体不详，治疗无效果，为求进一步诊治，于2015年5月10来我院皮肤科门诊就诊。既往史及家族史无特殊，无食物及药物过敏史。

婴幼儿重症肺炎与DIC

婴幼儿重症肺炎与ＤＩＣ青海省妇幼保健院（８１００００）魏春玲，郭锐婴幼儿重症肺炎并ＤＩＣ可致病情加重和致死，早期防治ＤＩＣ是降低死亡率的关键。我院于１９８８年～１９９３年收治１４８侧重症肺炎，并ＤＩＣ５８例，分析如下。临床资料一、一般资料本文重症肺炎...

对肺心病并发DIC早期诊断问题的探讨(附30例分析)

现将我院1990年1月～1993年12月共收治肺心病276例中并发DIC 30例的早期诊断问题加以探讨。 1 临床资料与分析 1.1 一般资料 本组肺心病并DIC 30例,占同期肺心病276例的10.1％,其中男12例,女18例,年龄均在50岁以上,肺心病程>7年者10例,>15年者20例。276例肺心病患者死亡36例,其中死于DIC者12例占死亡数的1/3。

Propagation properties for five-layer symmetric slab waveguides including left-handed materials

In this paper,we discussed a slab wave-guide of five layers,The core is a left-handed material,but the claddings are right-handed materials. A dispersion equation of TE modes is obtained by using Maxwell's equations,and some new dispersion characteristics are obtained based on the equation.

Nonlinear Propagation of Coupling Optical Pulse under Compton Scattering in Laser Medium

After considering Kerr nonlinear effect, group velocity dispersion of host and gain distribution of active particle in laser amplifying medium, a basic equation describing propagation of the coupling optical pulse under the multi-photon nonlinear Compton scattering in the laser amplifying medium has been deduced. Besides, the profile and power spectrum of a picosecond-level super-Gaussian coupling pulse in the laser amplifying medium have been discussed when its central frequency coincides with the gain peak frequency of the laser amplifying medium.

Effective Action for Noncommutative U(1) Gauge Theory with Higher Dimensional Terms

In this paper we apply the assumption of our recent work in noncommutative scalar models to the noncommutative U（1） gauge theories. This assumption is that the noneommutative effects start to be visible continuously from a scale ANC and that below this scale the theory is a commutative one. Based on this assumption and using background field method and loop calculations, an effective action is derived for noncommutative U（1） gauge theory. It will be shown that the corresponding low energy effective theory is asymptotically free and that under this condition the noncommutative quadratic IR divergences will not appear. The effective theory contains higher dimensional terms, which become more important at high energies. These terms predict an elastic photon-photon scattering due to the noncommutativity of space. The coefficients of these higher dimensional terms also satisfy a positivity constraint indicating that in this theory the related diseases of superluminal signal propagating and bad analytic properties of S-matrix do not exist. In the last section, we will apply our method to the noncommutative extra dimension theories.

Wavelength dependence of light propagation in a water suspension of anisotropic scatterers

We experimentally study the wavelength dependence of light propagation in a water suspension of lithium niobate microcrystalline particles.First,the ballistic transmission in the visible range of the suspension is measured.The nonlinear relationship is observed between the transport mean free path and the wavelength of the incident light.Secondly,we measure the coherent backscattering (CBS) of the sample at different wavelengths.The full width at half maximum of the CBS cone at 532 nm is about 1.24 times as large as that at 671 nm.The results indicate that the light with a long wavelength propagates further than the short wavelength light and the localization state of the short one is stronger.Finally,we investigate the light-controllable CBS experiments in the disordered materials of anisotropic scatterers,which show that the configuration of pump light with the longer wavelength and the probe light with the shorter wavelength performs better.

Changes in metabotropic glutamate receptor 4 expression and the effects of L-2-amino-4-phosphonobutyrate in a rodent model of diffuse brain injury

Objective: To examine the changes in the express ion of mGluR4 after diffuse brain injury (DBI) and to determine the role of its specific agonist L-2-amino-4-phosphonobutyrate (L-AP4) in vivo. Methods: A total of 161 male SD rats were randomized into the f ollowing groups. Group A included normal control,sham-operated control and DBI group. DBI was produced according to Marmarous diffuse head injury model. mRN A expression of mGluR4 was detected by hybridization in situ. Group B included D BI alone,DBI treated with normal saline and DBI treated with L-AP4. All DBI ra ts were trained in a series of performance tests,following which they were subj ected to DBI. At 1 and 12 hours,animals were injected intraventricularly with L -AP4 ( 100 mmol/L ,10 μl) or normal saline. Motor and cognitive performance s were tested at 1,3,7,14 days after injury and the damaged neurons were also detected. Results: There was no significant difference between normal con trol group and sham-operated group in the expression of mGluR4 ( P > 0.05 ) . The animals exposed to DBI showed significantly increased expression of mRNA o f mGluR4 compared with the sham-operated animals 1 h after injury ( P < 0.05 ). At 6 hours,the evolution of neuronal expression of mGluR4 in the trauma al one group was relatively static. Compared with saline-treated control animals,rats treated with L-AP4 showed an effective result of decreased number of damag ed neurons and better motor and cognitive performances.Conclusions: Increased expression of mGluR4 is important in the pathophysiological process of DBI and its specific agonist L-AP4 can provide r emarkable neuroprotection against DBI not only at the histopathological level bu t also in the motor and cognitive performance.

The dispersion characteristics of the waves propagating in a spinning single-walled carbon nanotube

As the nano-motor becomes a mechanical reality, its prototype can be envisaged as nano-sized rotating machinery at a situation,albeit for different purposes, like that in the first half of the 20th century during which rotor dynamics has contributed toboosting machine power capacity. Accordingly, we take the benefit of hindsight to develop a classical framework of vibrationanalysis. Essentially, the equations of motion are formulated to cope with both the special carbon-nanotube properties and thefirst author’s previously developed spinning beam formalism, establishing a model satisfactorily verified by some availablemolecular dynamics (MD) data and classical spinning beam results extracted from the literature. The model is inexpensivebased on continuum mechanics as an alternative to the less-flexible MD method for simulating wave motion of the spinningsingle-walled carbon nanotube, yielding several interesting phenomena, including the fall-off and splitting of the wave charac-teristic curves and the unexpected gyroscopic phase property. Potential applications are proposed.

Sub-picosecond chirped pulse propagation in concave-dispersion-flattened fibers

We propose the sub-picosecond chirped soliton pulse propagation in copcave-dispersion-flattened fibers （CDFF）. The effects of pulse characteristics and the fiber dispersion parameters on propagation characteristics of the chirped soliton pulse are numerically investigated in the CDFF by the split-step Fourier method （SSFM）. The unchirped soliton pulse can stably propagate with unchanged pulse width in the CDFE The temporal full width at half maximum （FWHM） of the chirped soliton performs a damped oscillation with the increase of propagation distance. The period and amplitude of the oscillation increase with the increase of the chirp parameter ｜C｜. The effect of high-order dispersion （β3-β6） on soliton propagation characteristics can be neglected. The soliton pulse slightly broadens with the increase of propagation distance and still maintains soliton characteristics when the fiber loss （ATT） is further considered. The variation of root-meansquare （RMS） spectral width with propagation distance is opposite to that of the temporal width. The output spectrum of soliton has a single peak for the unchirped case, while has multi-peak for chirped case. The temporal width of the soliton obviously increases with the increase of the initial width, decreases with the increase of dispersion peakD0 of the fiber, and slightly increases with the decrease of dispersion coefficients k1 and k2 of the fiber.