基于新型“1+X+N”人才培养模式的一流本科课程建设探索

为了适应时代的发展需求,响应国务院提出的在应用型本科高校启动“学历证书+若干职业技能等级证书”制度(即“1+X”证书制度)的试点工作,民办本科院校积极探索“1+X+N”人才培养新模式。在人才培养新模式下,省级一流本科课程光纤通信技术课程组从明确课程定位、推动教学改革、加大资源建设、优化教学内容与实施过程、推进课程思政、改善课程成绩评定等方面开展工作,努力提升学生在光纤通信方面的综合应用能力,培养出满足新时代通信发展需求的高质量人才。

探讨基于核心指标集构建中医特色的射血分数保留心力衰竭1+N模式疗效评价体系

核心指标集是就某一特定研究领域达成的所有临床研究都应该测量和报告的最少的临床结局,核心指标集可以提高临床疗效评价的规范性和可比性,是循证医学发展的必然、是中医药临床疗效评价的重要抓手、是推动中医药疗效评价与国际接轨的关键。如何运用核心指标集实现临床疗效国际化、标准化的同时,又能遵循中医诊疗特点体现自身优势是中医临床疗效评价的难点。针对这一难点,项目组创新性地提出了1+N模式的射血分数保留心衰(heart failure with preserved ejection fraction, HFpEF)疗效评价体系,即通用的核心指标集“1”+个性化指标集“N”,以满足循证医学和中医学疗效评价的双重需求。本文初探HFpEF疗效评价构建模式,主张在规范化基础上体现多样化和个性化的研究目的需求。结合HFpEF临床疗效评价的现状,综合业内专家意见,探讨了HFpEF 1+N模式疗效评价构建中核心指标集“1”的取舍以及“N”体系的构建思路,以期最大程度的形成符合中医药特色的临床评价体系新范式,推动中医药国际化进程。

缺血性心力衰竭患者N端脑钠肽前体与新发房颤的相关性研究

目的:分析缺血性心力衰竭(心衰)患者的血浆N端脑钠肽前体(N-terminal pro-brain natriuretic peptide,NT-proBNP)水平,及其与患者新发心房颤动(房颤)间的关系。方法:本研究纳入120例射血分数降低(<40%)的窦性心律的缺血性心衰患者,分别在基线0 d、6个月和12个月测定其血浆NT-proBNP水平,并在入组时行超声心动图检查,于入组后1、3、6、12个月时进行24 h动态心电图检查,根据随访12个月中是否发生房颤,将患者分为房颤组(n=44)和无房颤组(n=76)。分析2组患者的临床资料和心动超声图资料,应用受试者操作特征(receiver operating characteristic,ROC)曲线,分析NT-proBNP检测对新发房颤的预测作用及其最佳临界值。采用多因素logistic回归分析NT-proBNP与缺血性心衰患者新发房颤间的关系。结果:在12个月的随访期间,缺血性心衰患者中新发房颤率为36.7%。与无房颤组相比,房颤组的纽约心功能分级、NT-proBNP水平(入组当天、6个月和12个月)、心动超声检查中二尖瓣口舒张早期/舒张晚期峰值速度比值(E/A)、二尖瓣口/二尖瓣环速度比值(E/E’)、肺动脉收缩压(pulmonary artery systolic pressure,PASP)、肺毛细血管楔嵌压(pulmonary capillary wedge pressure,PCWP)、左心房容量(left atrial volume,LAV)和左心房容量指数(left atrial volume index,LAVI)更高(P<0.05)。NT-proBNP与E/A、E/E’、PASP、PCWP、LAV和LAVI呈显著正相关(P<0.05)。ROC曲线显示,基线0 d的NT-proBNP水平对新发房颤的预测能力最强,临界值取NT-proBNP≥2357.5 pg/mL时,其预测新发房颤的灵敏度为69%,特异度为83%,ROC曲线下面积为0.825(95%CI为0.722~0.924,P<0.001)。回归分析发现,仅NT-proBNP是缺血性心衰患者新发房颤的独立预测因子(OR=1.24,95%CI为1.08~1.43)(P=0.001)。结论:血浆NT-proBNP水平检测在预测缺血性心衰患者新发房颤中有一定的临床价值。

Identification and DNA Barcoding of a New Sillago Species in Beihai and Zhanjiang,China,with a Key to Related Species

A new Sillago species,Sillago parasihama sp.n.,is identified based on 127 specimens collected from the southern coast of China.We compared the morphological characters between Sillago parasihama and all other 11 Sillago species with two posterior extensions on the swim bladder.The new species is like S.sihama in the countable characters and color pattern,but is different from the latter by the distinct swim bladders.The swim bladder of S.parasihama is without lateral process.The posterior sub-extensions of anterolateral extensions are unique with some dendritic or sometimes stunted blind tubule,which are unilateral and outward,ex-tending along the abdominal,and are about one-third to half of the body of swim bladder in length.But the swim bladder of S.si-hama with 8-10 lateral processes,the posterior sub-extensions of anterolateral extensions are kinky,long and complicated,extend-ing along the abdominal wall below the peritoneum to the base of posterior extensions.S.parasihama can be distinguished from other species in this group by color pattern,meristic,and morphometric characters.Moreover,the results of genetic analysis using sequences of the mitochondrial cytochrome c oxidase subunit I(COI)fragment show significant interspecific-level genetic distances(0.159-0.231)between S.parasihama and 8 congeners in the group,which also support the validity of new species.We also provide a distribution map and a key of the related species.

Initial Rifting Age of the Nearly N–S Rifts in Southern Tibetan Plateau:New Evidence from the Age limit of the Early Sediments

Objective The nearly parallel N-S-trending rifts in southern Tibet represent the E-W extension of the Tibet Plateau. Most data which constrained the age of the extensional deformation come from isotopic dating of the dikes probably related to the activity of the nearly N-S faulting and micas from hydrothermal activity and the low- temperature thermochronology of plateau uplift. Previous research shows that there are at least three different ideas about the age of the rifts： （1） older than 16-12 Ma, （2） 14- 10 Ma, and （3） 8-4 Ma （Fig. la）. For the old sedimentary strata represented the beginning of the rifting, the dating of the sediments helps to better define the initial rifting age.

A new species of the genus Paramisophria（Copepoda，Calanoida，Arietellidae） from the China Seas

Holotypic and Paratypec specimens (female) of the present new species, Paramisophria sinica n.sp. were collected from the waters of the southeastern South Huanghai Sea and northern South China Sea, respectively. Compared with the previously known congeneric species,this new species remarkably differs from any one of them in some characters, such as in female: each side of posterolateral margin of last thoracic segment with two pointed processes; the genital segment asymmetrical and with fusion line clearly visible; leg 5 : endopod with four plumose setae, exopod with three or four outer marginal and one terminal spines.

New N_2-C根充糊剂临床实用价值的初探(附120例病例分析)

根管治疗的成功,有赖于根管的良好预备、消毒和完全的根充。现代根管解剖研究表明,根管的解剖变异极为复杂,因而造成根管预备的困难,器械不能达到根尖,有些变异的根管,由于根管解剖及技术上的困难,使根管治疗无法进行,瑞士牙髓学家Angelo。

A NEW BIFUNCTIONAL CHELATING AGENT α,ε-N,N'-BIS(L-CYSTEINYL)-L-LYSINE FOR RADIOLABELLING OF MONOCLONAL ANTIBODIES WITH TECHNETIUM-99M

α,ε-N,N'-bis(L-cysteinyl)-L-lysine was synthesized and char- acterized for the first time.It was then employed as a bifunctional chelating agent to chelate technetium-99m and subsequently conjugated to fragment F(ab')_2 of anti-gastric tumor monoclonal antibody 3G9.The radiolabelled antibody was satisfactorily stable and immunoreactive.

The Synthesis and Structure of Adduct of a New Schiff Base Macrocycle with Two THF: THIONE_2B_4[36]ENE-O_6N_8·2THF

New Schiff base Macrocyclic compound of 2,3: 11, 12:20, 21:29, 30-tetrabenzo-1,13,16,19,31,34-hexaoxa-5,6,8,9,23,24,26,27-octaaza-7,25-dithione-2,3:4,5:9,10:11,12:22, 23:27,28:29,30 cyclo-[36]ene (thione2B4[36] ene-O6N8) containing THF has been prepared. It crystallizes in the monoclinic, space group P21/n. with parameters a=9.829(5) b=24.23(1), c=10.181(9), β=92.93(5)°, Z=2, V=2422(3)3, Dc=1.25gcm-3. Data collection: Rigaku AFC-5R diffractometer,(MoKα, λ=0.71069), ω /2θ scans. θmax=25°, empirical absorption correction, 4658 measured reflections, 4387 independent, 1743 observed reflections [I≥3σ(I)]. The final R=0.056. RW=0.069,S=1 .54, (Δ/σ)max=0.01,Δρmax=0.36e-3.

Myrmechis bakhimensis D.Maity,N.Pradhan & G.G.Maiti,a new species of Orchidaceae from Sikkim Himalaya

Myrmechis bakhimensis D. Maity,N. Pradhan & G. G. Maiti (Orchidaceae),a new species from Sikkim Himalaya,is described and illustrated. The new species most closely resembles M. japonica (Reichb.) Rolfe and M. chinensis Rolfe with similar shape and size of lamina and the “T”-shaped epichile,but differs by the perfectly glabrous and eciliate floral bract,5-nerved dorsal sepal,and emarginate,mucronate epichile.

A NEW CONVENIENT SYNTHESIS OF S-ALKYL N,N-DIALKYL THIOPHOSPHORAMIDIC ACID DERIVATIVES

The chlorination of O,O-dialkyl N,N-dialkyl thiophosphoramidates with phosphorus oxychloride proceeds with isomerization to give S-alkyl N,N-dialkyl thiophosphoramidochloridates,which react further with various nucleophiles in the presence of base to give the title compounds.

A New Study on the Superplasticity of TiAl Alloys

The superplasticity of Ti-46.7Al-2.2Cr(at.%)alloy was studied by mathematical induction.It is found that Zener Hollomon relative formula and there are serious deflections.According to the true superplastic stress and true strain curves,the deflection values of n=-7.46 and B=1439MPa are obtained,indicating that the limit of n>0 has been exceeded,which needs to be characterized by a negative sign.This shows that it conforms to the principle that the smaller n is,the better superplasticity is,but the problem that it has become a negative number needs to attract the attention of peers meantime B is a better match.

“1+N”导师制的人才培养模式探索与构建——依托企业项目案例融入“新工科”背景应用型机械类专业人才培养

通过对机械专业现行人才培养模式调研分析,以企业项目案例(企业对新入职大学生职业能力的培养项目)为切入点,引入“1+N”导师制,构建“1+N”导师制的人才培养模式保障体系,建立健全导师工作团队遴选考核机制,完善应用型本科机械类专业学生“工匠精神”评价体系,旨在为我国高等院校在“新工科”背景下将应用型本科生培养成具备高素质“工匠精神”的优秀毕业生提供借鉴与参考。

CHIC’N BOUTIQUE Welcoming a new wave of sleek Shanghai hotels

Our city is long past its coming out. Now one of the most talked about destinations in the world, Shanghai is as much of a center for tourism as it is for commerce. Travelers here face a glut

GC-MS法检测氟胺酮和N-乙基氟胺酮

本文采用气相色谱-质谱(GC-MS)技术,建立了可疑物中2种新精神活性物质(New Psychoactive Substance,NPS)氟胺酮和N-乙基氟胺酮的测定方法。将可疑物检材用甲醇溶解后,采用气相色谱-质谱仪的全扫描模式(GC-MS/Scan)进行定性检测,用气相色谱-质谱仪的选择离子监测方法(GC-MS/SIM)进行定量检测,以内标法进行定量,内标物选用甲氧那明。实验结果显示,氟胺酮和N-乙基氟胺酮在2~200μg·mL^(-1)范围呈现良好的线性关系,相关系数R^(2)>0.999。2种NPS的检出限(LOD)均为1μg·mL^(-1),定量限(LOQ)均为2μg·mL^(-1),准确度(n=6)在0.70%~9.50%之间,日内精密度(n=6)在0.82%~4.03%之间,日间精密度在1.61%~7.65%之间,回收率在90.11%~104.79%之间。研究结果表明,该方法具有操作简便、灵敏度高、易于重现的优点,适用于氟胺酮和N-乙基氟胺酮的检测。

CTCS-N等级转换场景形式化建模与验证

新型列车控制系统的车载设备承担更多地面设备的功能,其功能测试主要是以现场测试为主,费时费力,构建满足系统功能与性能需求的模型有助于保证列车在线路上安全、高效地运行,因此针对新型列控系统提出一种基于时间自动机的形式化建模与验证的方法。首先,选取等级转换场景为主要建模场景,提取规范中的功能与性能需求,梳理信息交互图,基于UPPAAL建立车载设备、应答器、临时限速服务器、无线闭塞中心的时间自动机模型;然后,使用模拟器进行模型的仿真,生成对应的消息顺序图;最后,以自动机语言为基础,验证正常模式和故障模式下车载设备转换是否满足要求。验证结果表明:所建立的模型满足等级转换场景的需求,其功能符合对应的技术规范,证明了该形式化建模的可行性,为新型列控系统测试、其他场景或功能的建模与验证提供了参考。

慢性心力衰竭患者血清NT-proBNP、ACT-A、sST2、Adropin水平与心功能的相关性分析

目的:分析慢性心力衰竭(CHF)患者血清氨基末端B型利钠肽前体(NT-proBNP)、激活素A(ACT-A)、可溶性生长刺激表达基因2蛋白(sST2)、Adropin水平与心功能的相关性。方法:选取2022年2月-2023年1月北京市海淀区青龙桥社区卫生服务中心收治的355例CHF患者作为观察组,选取同期50例健康体检者作为对照组。采用纽约心脏病协会(NYHA)心功能分级评估CHF患者心功能,检测研究对象血清NT-proBNP、ACT-A、sST2、Adropin水平。比较两组组不同NYHA心功能分级CHF患者血清NT-proBNP、ACT-A、sST2、Adropin水平,分析血清NT-proBNP、ACT-A、sST2、Adropin水平与NYHA心功能分级的相关性。结果:观察组血清NT-proBNP、ACT-A、sST2、Adropin水平高于对照组,差异有统计学意义(P<0.001)。不同NYHA心功能分级CHF患者血清NT-proBNP、ACT-A、sST2、Adropin水平比较,Ⅱ级<Ⅲ级<Ⅳ级,差异有统计学意义(P<0.05)。血清NT-proBNP、ACT-A、sST2、Adropin水平与NYHA心功能分级呈正相关(P<0.05)。结论:CHF患者血清NT-proBNP、ACT-A、sST2、Adropin水平与心功能呈正相关,临床医师根据上述指标辅助判断CHF患者心功能,为患者制定针对性治疗方案。

Si-Al-O-N系中的新型耐火材料

介绍了Si Al O N系中的新型耐火材料 :Alon结合Al2 O3,Sialon结合Al2 O3,A3S2 -Sialon结合Al2 O3,O’ Sialon结合Al2 O3 及O’ Sialon -ZrO2耐火材料的特点、性能和制备工艺过程 。

灰色新息GM(n,h)建模中的递推算法

在数据采样中 ,GM( n,h)模型是基于不断进入系统 ,并对系统造成影响的扰动因素所建立的灰微分方程 .文章主要讨论灰色新息 GM( n,h)

N端脑钠肽前体预测首次急性心肌梗死后新发心房颤动的价值研究

目的:探讨首次急性心肌梗死患者入院时的血浆N端脑钠肽前体(N-terminal pro-brain natriuretic peptide,NT-proBNP)水平与其新发心房颤动(房颤)间的关系。方法:测定236例首次急性心肌梗死(心梗)入院患者入院时以及急诊经皮冠状动脉介入术(percutaneous coronary intervention,PCI)术后1 d、3 d、7 d的血浆NT-proBNP水平,并持续监测患者入院7 d内有无房颤发作,根据结果将患者分为房颤组(n=51)和无房颤组(n=185)。分析患者的临床资料、心脏超声和冠状动脉造影资料,应用受试者操作特征曲线(receiver operator characteristic curve,ROC曲线)分析NT-proBNP预测急性心梗患者新发房颤的临界值,采用多因素Cox回归分析评价NT-proBNP水平对急性心梗后新发房颤的预测价值。结果:急性心梗后的新发房颤率为21.6%。单因素分析发现,房颤组患者的年龄、左心房内径、C反应蛋白(C reactive protein,CRP)水平以及合并高血压、前壁心梗、左前降支和三支血管病变的构成比均显著高于无房颤组;房颤组患者的左心室射血分数显著低于无房颤组;房颤组患者的NT-proBNP水平无论在入院时,还是术后1 d、3 d和7 d均显著高于无房颤组(P<0.05)。ROC曲线显示,入院时NT-proBNP水平预测急性心梗患者新发房颤的曲线下面积为0.74(95%CI为0.60~0.90,P<0.01),最佳临界值为1403.6 ng/L。多因素Cox回归分析显示,NT-proBNP>1403.6 ng/L(OR=1.8,95%CI为1.3~2.4)、年龄>69岁(OR=1.6,95%CI为1.3~3.1)和左心房内径>43.8 mm(OR=1.3,95%CI为1.1~1.9)是首次心梗患者新发房颤的独立预测因素(P<0.05)。结论:血浆NT-proBNP水平检测在早期预测急性心梗后新发房颤中有一定的临床价值。