以岗位需求为导向的二级医院ICU进修护士教学培训体系的构建及实践

Objective: Establish position requirements-oriented training system of ICU training nurses in secondary hospital .To standardize the teaching management and improve the training effect for the training nurses in our ICU. Methods: Form the ICU training nurse teaching staff; Formulate training manual according to survey results of nurse training demand；Implement clinical teaching in stages according to the content of the training manual; Proceed comprehensive skills assessment in the different stages of training. Results: The pass rate of the 84 training nurses in 2013was 100%, the excellent rate was 25.72%,the good rate was 36.37%. 84 training nurses completed the training task perfectly according to the training manual, and during the training there was no nursing security incidents. Conclusion: To establish position requirements-oriented training system of ICU training nurses is the main method to solve the shortage of nursing professionals  in secondary hospital. This kind of training system is appropriate to the needs of the development of intensive care ,training requirement and clinical requirement. It should be extended in nurse training work in ICU.目的  建立以岗位需求为导向的二级医院ICU进修护士教学培训体系。从而规范本科进修护士的教学管理，提高培训效果。方法  组建ICU进修护士师资队伍；按照进修护士培训需求调查的结果制订进修培训手册；遵照培训手册的内容实施分阶段的临床教学；在进修培训的不同阶段进行ICU综合技能考核。结果  2013年84名进修护士综合技能考核成绩合格率100%，其中优秀率25.72%，良好率36.37%。84名进修护士均遵照培训手册的要求圆满完成培训任务，在培训期间无护理安全事故发生。结论  建立以岗位需求为导向的ICU进修护士教学培训体系是解决当前二级医院ICU护理专业人才紧缺的主要方法。这种培训体系与重症护理发展的需要、护士的培训要求及临床实际工作需要相适应，适于在ICU护士在职培训工作中推广

Numerical and experimental investigation of nonlinear properties of rubber absorber in rail fastening

International audienceA nonlinear dynamic model of a rubber absorber in railway fastening systems is proposed, based on the superposition principle to simulate its nonlinear vibrational behavior. A dynamic experiment was carried out to obtain all model parameters. The accuracy of the model was supported by good agreement between measured and simulated results, and it should therefore be an effective mechanical tool for simulating and characterizing the nonlinear behavior of rubber absorbers in rail fastening systems at particular vibrational modes. Excitation frequency dependency and amplitude dependency of the nonlinear dynamic stiffness were also selected for further study. The results indicate that characteristics of the nonlinear dynamic stiffness are closely associated with both displacement amplitude and frequency, although frequency dependency is not as great as amplitude dependency

Formation of Nanofoam carbon and re-emergence of Superconductivity in compressed CaC6

Pressure can tune material's electronic properties and control its quantum state, making some systems present disconnected superconducting region as observed in iron chalcogenides and heavy fermion CeCu2Si2. For CaC6 superconductor (Tc of 11.5 K), applying pressure first Tc increases and then suppresses and the superconductivity of this compound is eventually disappeared at about 18 GPa. Here, we report a theoretical finding of the re-emergence of superconductivity in heavily compressed CaC6. The predicted phase III (space group Pmmn) with formation of carbon nanofoam is found to be stable at wide pressure range with a Tc up to 14.7 K at 78 GPa. Diamond-like carbon structure is adhered to the phase IV (Cmcm) for compressed CaC6 after 126 GPa, which has bad metallic behavior, indicating again departure from superconductivity. Re-emerged superconductivity in compressed CaC6 paves a new way to design new-type superconductor by inserting metal into nanoporous host lattice.Comment: 31 pages, 12 figures, and 4 table

(E)-Methyl 3-(3,4-dihy­droxy­phen­yl)acrylate

The benzene ring in the title compound, C10H10O4, makes an angle of 4.4 (1)° with the C—C—C—O linker. The hy­droxy groups are involved in both intra- and inter­molecular O—H⋯O hydrogen bonds. The crystal packing is stabilized by O—H⋯O hydrogen-bonding inter­actions. The mol­ecules of the caffeic acid ester form a dimeric structure in a head-to-head manner along the a axis through O—H⋯O hydrogen bonds. The dimers inter­act with one another through O—H⋯O hydrogen bonds, forming supermolecular chains. These chains are further extended through C—H⋯O hydrogen bonds as well as van der Waals inter­actions into the final three-dimensional architecture

Effect of Cistanche deserticola Ma extract on memory of aged mice

Purpose: To assess the memory-enhancing effect of Cistanche deserticola Ma (Orobanchaceae) extract (CDME) on normal aged mice.Methods: An open-field test was used to study the effects of various doses of CDME on mouse locomotive activity. The mice were sacrificed following the locomotor test and the brain dissected to investigate the effects of CDME on catalase (CAT) and acetyl cholinesterase (AChE) activities in mouse brain tissue.Results: Compared with the control aged group, CDME (400 mg/kg) significantly reduced the total distance traveled (3312.5 ± 119.3 cm, p < 0.05), increased brain CAT activity (107.6 ± 11.8U/mg pro, p < 0.05), and inhibited brain AChE activity (0.89 ± 0.13 U/mg pro, p < 0.05) in CDME-exposed mice.Conclusion: The results show that CDME improves memory function in mice, probably by increasing the activity of CAT and decreasing AChE activity.Keywords: Cistanche deserticola Ma, Memory function, Catalase, Acetyl cholinesterase, Open-field tes

Specific-Heat Measurement of Residual Superconductivity in the Normal State of Underdoped Cuprate Superconductors

We have measured the magnetic field and temperature dependence of specific heat on $Bi_2Sr_{2-x}La_xCuO_{6+\delta}$ single crystals in wide doping and temperature regions. The superconductivity related specific heat coefficient $\gamma_{sc}$ and entropy $S_{sc}$ are determined. It is found that $\gamma_{sc}$ has a hump-like anomaly at $T_c$ and behaves as a long tail which persists far into the normal state for the underdoped samples, but for the heavily overdoped samples the anomaly ends sharply just near $T_c$. Interestingly, we found that the entropy associated with superconductivity is roughly conserved when and only the long tail part in the normal state is taken into account for the underdoped samples, indicating the residual superconductivity above T$_c$.Comment: 4 pages, 4 figures, Accepted for publication in Physical Review Letter

3,3′-Dibromo-1,1′-[ethyl­enedioxy­bis(nitrilo­methyl­idyne)]dibenzene

In the centrosymmetric title compound, C16H14Br2N2O2, the intra­molecular interplanar distance between the parallel benzene rings is 1.305 (3) Å, while the inter­molecular interplanar distance (between neighbouring mol­ecules) is 3.463 (3) Å, exhibiting obvious strong inter­molecular π–π stacking inter­actions

Broadband energy-efficient optical modulation by hybrid integration of silicon nanophotonics and organic electro-optic polymer

Silicon-organic hybrid integrated devices have emerging applications ranging from high-speed optical interconnects to photonic electromagnetic-field sensors. Silicon slot photonic crystal waveguides (PCWs) filled with electro-optic (EO) polymers combine the slow-light effect in PCWs with the high polarizability of EO polymers, which promises the realization of high-performance optical modulators. In this paper, a broadband, power-efficient, low-dispersion, and compact optical modulator based on an EO polymer filled silicon slot PCW is presented. A small voltage-length product of V{\pi}*L=0.282Vmm is achieved, corresponding to an unprecedented record-high effective in-device EO coefficient (r33) of 1230pm/V. Assisted by a backside gate voltage, the modulation response up to 50GHz is observed, with a 3-dB bandwidth of 15GHz, and the estimated energy consumption is 94.4fJ/bit at 10Gbit/s. Furthermore, lattice-shifted PCWs are utilized to enhance the optical bandwidth by a factor of ~10X over other modulators based on non-band-engineered PCWs and ring-resonators.Comment: 12 pages, 4 figures, SPIE Photonics West Conference 201