The exploration and practice in improving nursing skills training effect under clinical settings

目的  针对护理操作技能培训中临床情境不足、易机械性、习惯性模仿的问题，探索提高培训师临床设置下操作技能培训效果的有效教学方法，使操作技能培训更贴近临床。方法  改变管理角色，变教学督导、检查为“对口辅导”的模式对培训过程、教学方法及考核过程进行现场辅导，并举办培训师经验分享、建立培训交流空间及改革质量监控方法等措施；对辅导型管理前后的考核结果进行自身前后对照。结果  对口辅导前后考核平均成绩具有统计学意义（P＜0.05），辅导型管理前后科室考核与护理部抽考成绩差异性＞±10%的发生例数、临床结合问题不足的例数差异均具有显著性（P＜0.001）；辅导型管理前后不及格例数差异无显著性（P＞0.05）。结论  辅导型管理模式能有效提高培训师临床设置下护理技能培训效果。Objective: In view of the problem of shortage of clinical situation and easy mechanically imitation in nursing skills training , to explore an effective teaching method to improve the trainers’training effect of nursing skills under clinical settings，To make nursing skills more close to clinical. Methods: Change management role from Supervision and inspection to “counterpart counseling”, by performing the teaching process guidance and the examine guidance , establishing the space to share information , reforming the quality control method. to compare the results by setting a self-control between before and after the management of counterpart counseling. Results: Average marks before and after the management of counterpart counseling had a difference (P < 0.05 ),the number of the difference over ±10% between the scores assesmented by trainers in their department and the scores assessed by nursing department had an obvious difference（P < 0.001）, The number of the shortage correlating clinical condition had an obvious difference（P < 0.001）.The number of failing in the exam before and after the teaching guidance had no differences（P > 0.05）. Conclusion: The management coach can effectively improve the effect of training under clinical settings

Dynamical transitions in scalarization and descalarization through black hole accretion

We present the first fully nonlinear study on the accretion of scalar fields onto a seed black hole in anti-de Sitter spacetime in Einstein-Maxwell-scalar theory. Intrinsic critical phenomena in the dynamical transition between the bald and scalarized black holes are disclosed. In scalarizations, the transition is discontinuous and a metastable black hole acts as an attractor at the threshold. We construct a new physical mechanism to dynamically descalarize an isolated scalarized black hole. The first results on critical phenomena in descalarizations are revealed. The dynamical descalarizations can be either discontinuous or continuous at the threshold, distinguished by whether or not an attractor appears

Cyclotrimerization of alkynes catalyzed by a self-supported cyclic tri-nuclear nickel(0) complex with α-diimine ligands

A cyclic tri-nuclear α-diimine nickel(0) complex [{Ni(μ-L Me-2,4 )} 3 ] (2) was synthesized from a “pre-organized”, trimerized trigonal LNiBr 2 -type precursor [Ni 3 (μ 2 -Br) 3 (μ 3 -Br) 2 (L Me-2,4 ) 3 ]·Br (1; L Me-2,4 = [(2,4-Me 2 C 6 H 3 )NC(Me)] 2 ). In complex 2, the α-diimine ligands not only exhibit the normal N,N′-chelating mode, but they also act as bridges between the Ni atoms through an unusual π-coordination of a C═N bond to Ni. Complex 2 is able to catalyze the cyclotrimerization of alkynes to form substituted benzenes in good yield and regio-selectivity for the 1,3,5-isomers, which is found to vary with the nature of the alkyne employed. This complex represents a convenient self-supported nickel(0) catalyst with no need for additional ligands and reducing agent

Instant Interfacial Self-Assembly for Homogeneous Nanoparticle Monolayer Enabled Conformal ‘lift on’ Thin Film Technology

Thin film fabrication is of great importance in the modern engineering. Here, we propose a universal and conformal thin film technique enabled by the wetting empowered interfacial self-assembly. By tailoring the contact angle of nanoparticle (NP), a NP monolayer can be assembled instantly (within 5 seconds) with an excellent harvesting efficiency (up to 97.5 wt). This self-assembly strategy presents a universal applicability on various materials, e.g. non-metal, metal and core-shell structures, and can achieve a monolayer with same in-plane area as 4-inch wafer in a single process, indicating great potential for scale-up manufacturing. Through a template transfer, we coat the surface of different substrates (plastic, paper, etc.) with the assembled film in a conformal and non-destructive ‘lift-on’ manner and subsequently demonstrate fluorescent micropatterns. This self-assembly strategy has great implications in advancing thin film technology with a user-friendly and cost-effective fashion, for the applications in anti-counterfeiting, actuators, and wearable/flexible electronic

Organic Photochemistry-Assisted Nanoparticle Segregation on Perovskites

Summary The segregation (or exsolution) of nanoparticles (NPs) on the surface of perovskite oxide parents has emerged as an advanced technology to design functional materials for renewable energy. However, this process relies heavily upon lengthy reduction (800–1,200 K) in hydrogen-rich environments to facilitate the electron transfer from hydrogen to oxides, making this process costly. Here, we show that, in addition to thermal driving forces, photo-illumination can drive electron donation and facilitate the electron harvesting on perovskite directly. This results in segregation of NPs at room temperature with the assistance of trialkyl amine as a hole acceptor. A proton-coupled electron transfer catalytic cycle is suggested to explain this unusual electron transfer pathway, which is redox neutral and an intrinsically closed cycle. The practicality of this process is demonstrated by the improved performance in a trial electrocatalytic oxygen evolution reaction. This work suggests a promising design principle for perovskite functionalization

Performance of the 1-ton Prototype Neutrino Detector at CJPL-I

China Jinping Underground Laboratory (CJPL) provides an ideal site for solar, geo-, and supernova neutrino studies. With a prototype neutrino detector running since 2017, containing 1-ton liquid scintillator (LS), we tested its experimental hardware, performed the physics calibration, and measured its radioactive backgrounds, as an early stage of the Jinping Neutrino Experiment (JNE). We investigated the radon background and implemented the nitrogen sealing technology to control it. This paper presents the details of these studies and will serve as a key reference for the construction and optimization of the future large detector at JNE

Advanced fuel cell based on Perovskite La-SrTiO3 semiconductor as the electrolyte with superoxide-ion conduction

A solid oxide fuel cell’s (SOFC) performance is largely determined by the ionic-conducting electrolyte. A novel approach is presented for using the semiconductor perovskite LaR0.25RSrR0.75RTiOR3R (LST) as the electrolyte by creating surface superionic conduction, and the authors show that the LST electrolyte can deliver superior power density, 908.2 mW·cmP-2P at just 550 °C. The prepared LST materials formed a heterostructure including an insulating core and a super ionic conducting surface layer. The rapid ion transport along the surfaces or grain boundaries was identified as the primary means of oxygen ion conduction. The fuel cell-induced phase transition was observed from the insulating LST to a super OP2-P conductivity of 0.221 S·cmP-1P at 550 °C, leading to excellent current and power outputs