简介：

简介：摘要：“有+V+N1+自+N2”结构是甲骨卜辞中的一种特殊语法现象，学界对其结构的判定一直争论不断。本文从“V+N1”的结构和“自+N2”的语义指向两个方面进行阐述，以此来论证甲骨卜辞中的“有+V+N1+自+N2”结构为存现动词“有”搭配谓词性宾语的典型用法。在“有+V+N1+自+N2”结构中，“有”是谓语中心，“V+N1+自+N2”作“有”的宾语，“N1”实为“V”的宾语，“自+N2”为“V”的补语。

简介：AbstractObjective:The prevalence of midline birth defects, such as gastroschisis, has increased worldwide, over the last few decades. This study aims to explore the prevalence, maternal epidemiological characteristics, and natural history of neonates affected by gastroschisis at the University Hospital of León city, Nicaragua.Methods:Data were collected from the birth defect surveillance system of the Hospital Oscar Danilo Rosales (HEODRA). The analysis included all pregnancies that had gastroschisis complications between January 1 and December 31, 2020. The prevalence of gastroschisis was calculated according to maternal age. The mothers were interviewed, and the clinical records of the newborns were reviewed.Results:Among the 4,460 deliveries included in this study, four cases of gastroschisis were identified, including three live births and one stillbirth. The gastroschisis rate was 8.9 per 10,000 live births (95% confidence interval [CI]: 0.18-17.8). The prevalence among mothers younger than 20 years and those older than 20 years was 26.4 (95% CI: -3.43 to 56.25) and 3.01 (95% CI: 2.89-8.90)/10,000 births, respectively. Mothers of gastroschisis-affected fetuses were of rural origin (n = 3), had normal body mass indexes (n = 3), were exposed to tobacco and wood smoke (n = 2), and one was exposed to pesticides during the periconceptional period. Primary closure of the gastroschisis was performed on one patient, and complex gastroschisis for intestinal perforation was observed in another patient. The mean hospitalization duration was 33 days, and two patients were discharged alive.Conclusions:Gastroschisis was a significant birth defect among children delivered at HEODRA in 2020. Its prevalence in Nicaragua was higher than that in other countries in the region. All complicated pregnancies were young women with unplanned pregnancies, from rural areas, with exposure to secondhand smoke, and without vitamin supplements before or during the first trimester of pregnancy. Only 67% of infants survived after hospital discharge.

简介：摘要：有意义的语言重复，不再是简单的语言堆砌，而是教师基于对学生的了解，对社会的认识，对生活的感悟，对教材的解析，并伴随着情感和教学目标的变化而调整后的重复。这种气吞山河的力度、春风化雨的情怀、化腐朽为神奇的语言力量直击学生的心灵，让晦涩变得明白，让抽象变得具体，让高深变得浅显。这就是教师语言所孜孜以求的N次方效应。

简介：摘要  目的：了解临床N0-N2级护士对生存质量的认知状况及其影响因素，从而促进护理质量的提高并起到推动优质护理服务的作用。方法：采用自设问卷，对我院和某三甲医院心血管内科、呼吸科、肾内科、消化内科、神经内科、肿瘤科、内分泌科、脑外科、肝胆外科和骨伤科护士进行问卷调查，内容包括一般资料、护士对生存质量的认知和态度以及领床护士开展评价生命质量的困难等。结果：①30.0%的护士知道生命质量，52.8%的不知道生存质量的概念，并且有58.6%的不知道目前国内生命质量的研究方向。②在临床上有81.4%从没有运用过生命质量。③56.5%很愿意进一步了解学习生命质量，并且有51.0%希望通过专题讲座的方式来学习。

简介：摘要：本文从认知语义学的视角出发去阐释转喻N+N合成名词语义的形成过程，以韩国语N+N合成名词中一个或以上的构成词素发生转喻的词为研究对象，结合概念整合理论探究转喻N+N合成名词语义的动态构建过程。

简介：摘要：随着锂电池行业高速发展，投资者和管理者都会越来越关注企业价值。N锂电池公司是锂电池行业的龙头企业，研究其价值评估对锂电池行业有一定参考价值，通过自由现金流量法采用三阶段增长模型对N公司进行价值评估，证明三阶段增长模型的自由现金流量法对于N公司是适用的、合理的。

简介：摘要目的明确鼻咽癌N0-N1期患者Ⅱb区淋巴结预防照射剂量CTV60Gy优化至CTV50Gy的安全性以及对腮腺保护的剂量优势和临床价值，了解PET-CT及弥散加权成像（DWI）对颈部可疑阳性淋巴结（最大横断面短径≥5 mm但<10 mm）的诊断价值。方法回顾性分析2015年6月至2017年3月收治的N0-N1期初治非转移鼻咽癌157例，其中104例在多模态影像指导下进行上颈部Ⅱb区临床靶区优化，以Kaplan-Meier法进行生存分析，单因素、多因素回归分析颈部淋巴结复发模式，配对t检验比较剂量优化前后靶区及腮腺剂量参数差异。结果N1期行对侧单颈Ⅱb区优化60例，行双颈Ⅱb区优化25例（仅咽后淋巴结转移者）；N0期双颈Ⅱb区优化19例。共有3例患者出现颈部复发，均在高剂量区内。全组5年总生存率为93.3%，淋巴结无复发生存率、无局部复发生存率、无远处转移生存率和无瘤生存率分别为97.1%、91.3%、88.5%和80.8%。颈淋巴结复发与鼻咽局部复发有关，与咽后淋巴结状态无关。14例患者Ⅱb区内有可疑阳性颈淋巴结，最大横截面短径平均为7.1（5~9）mm，其中11例PET-CT阳性，平均SUVmax为2.96（2.5~3.3）。优化后肿瘤体积的差异无统计学意义（P>0.05），腮腺的Dmean、Dmax、D50%、V26Gy显著低于常规计划（P<0.01）。结论鼻咽癌N0-N1患者进行Ⅱb区CTV60Gy至CTV50Gy的剂量优化是安全的，腮腺及颈部周围正常组织受照剂量明显降低，对于未达诊断标准的小淋巴结需要结合PET-CT及DWI等多模态成像进行个体化处理。

简介：摘要：媒体融合工作重点已经从顶层设计到全面铺开落地转移，融媒体中心的建设下沉至县级，打通“最后一公里”。本文以N市的县级融媒体建设为例，梳理出用户至上、深度融合、参与治理的有关经验，以期为其他地区的县级融媒体建设提供借鉴。

简介：摘要:随着国际化进程的日益推进,国际间的合作越来越频繁，在我国的生产中国际材料的应用也越来越普遍。因此，对国际材料应用的研究是势在必行的。本文是对昆明地铁工程隧道设备盾构机盾体制作中所使用材料S355J2+N的焊接研究。本文通过对S355J2+N材料成分分析、焊接性分析、焊接试验等手段对S355J2+N厚板的焊接进行了可行性研究。为S355J2+N材料在以后生产中的应用提供了见解方案。

简介：AbstractAvian influenza remains a threat to human wellbeing. Hypochlorite derivatives are commonly used as disinfectants to prevent the spread of the disease. The World Health Organization (WHO) has listed chlorine dioxide (ClO2) as an A1-level, safe, and efficient disinfectant. In this study, we tested the efficacy of ClO2, in aqueous solution and gas forms, against avian influenza A (H7N9) virus. The virus suspension was mixed with ClO2 aqueous solutions of various concentrations and for various time intervals. Aliquots of the mixture were then serially diluted, and the 50% tissue culture infective dose (TCID50) was measured with a hemagglutination test on MDCK cells. ClO2 gas produced from generators was introduced in a chamber containing the virus suspension in a Petri dish. The infective activity of the surviving virus was measured by the hemagglutination test. An aqueous solution of ClO2 at 126 µg/mL for 15 s was effective given that no surviving virus was detected with the hemagglutination test. ClO2 gas at >5 µL/L sustained for 1 h inactivated the virus effectively, while at 2.5 µL/L for 1 h, it only partially inactivated the virus. ClO2 as gas or aqueous solution at a certain concentration is effective in inactivating the H7N9 virus, and can be applied for the decontamination and disinfection of environments.

简介：摘 要：根据3N供水工程本站实际布置特点，在已有研究资料的基础上开展本工程供电系统设计，采用电力综合分析软件ETAP，对各种运行工况进行分析和计算，合理地确定本站供电方案，为供水工程的安全、稳定、长期运行奠定基础，为今后其它类似多泵站供水工程设计提供参考。

简介：摘要：疫情常态化背景下，线上线下混合式教学已经被广大师生所接受，并积极开展相关探索。目前线上考试已经成为学校对学生进行考核评价的主要形式之一，但由于线上考核环境监控不到位等因素，公平、公开、公正性受到广泛质疑。为此，本文在探究学生线上考核易出现的问题和作弊方式的基础之上，针对现阶段线上考试作弊监管等难点进行了分析，构建 “3+N”线上考核防作弊体系，在线上平台防作弊技术，线上考生监考环境构建，线上考试监管保障体系，N种多维度立体式防作弊实施手段四个层面，有效防止学生线上考核作弊的问题，全面提升线上人才测评质量。

简介：

简介：

简介：【摘要】为实现山区学校优质教育资源均衡一体化，通过以镇中心小学为骨干学校把优质课堂辐射到全镇学校（教学点），凭借“互联网+教育”智慧课堂平台，充分使用“智慧教室”“精品录播室”等手段，依托粤教翔云学习空间，运用现代信息教育技术，常态化开展“双师课堂”教学，促进信息技术与课堂教学融合创新发展。形成了具有我校特色的乡村学校“双师同步，区域覆盖，共享课堂‘1+N’”的闪亮名片。有效提升农村学校学生的核心素养，加速学校内涵发展。

简介：文字摘要：

简介：摘要：新时代新形势给建筑施工企业带来了机遇和挑战，能否取得竞争优势、奠定自己的市场地位，薪酬体系的建立和优化便成为企业生产运营管理中的关键环节之一。

简介：AbstractN-acetyl-cysteine (NAC) is an efficacious treatment for sensorineural hearing loss in animal models, such as noise-induced hearing loss (NIHL), however previous research into the effect of NAC on patients with hearing loss produced contradictory results. In this study, we investigated the effect of NAC treatment on sensorineural hearing loss. PubMed, Web of Science and Embase databases were searched in their entirety using the key words: hearing loss, NAC, N-acetylcysteine, and sensorineural hearing loss. Studies which included assessment of hearing loss with pure-tone threshold (PTA) data were selected. Eligible studies regarding the effects of NAC treatment on patients with hearing loss were collected by two independent reviewers. A total of 1197 individuals were included from seven published studies. Two studies reported data for a sudden idiopathic sensorineural hearing loss (SISNHL) group. Three studies reported data for a NIHL group. Other studies reported data for drug-induced hearing loss. The meta-analysis demonstrated that the overall effect of NAC treatment on sensorineural hearing loss was invalid. However, NAC treatment was linked with improved patient outcomes of hearing tests in cases of sudden hearing loss, but did not prevent hearing loss induced by noise or ototoxicity. However, there is a need for better-designed studies with larger samples to further prove the correlation between the effect of NAC and hearing loss.

简介：【摘要】本文结合《新课堂改革纲要》及传统课堂的四大缺失，精心组织课堂教学改革活动，提出“2n4”自主幸福课堂教学模式基本框架，推动“2n4”自主幸福课堂教学模式的实施，把学生从繁重的学习任务中解脱出来，全面构建优质高效的幸福课堂。