简介:摘要:本教学设计案例围绕 预备单元(Starter Unit 3What color is it ? )展开。通过复习句型(What’s this/that? It’s an apple. What color is it? t’s red. Spell it ,please.It’s red)谈论物体颜色学习语法(an/a/the),同时训练学生听,说的能力 .本教学设计依据新课程标准要求,通过希沃游戏,大转盘游戏激发学生学习兴趣,采用图片直观教学法, 通过师生练习,小组练习,双人练习呈现新句型(It’s a red apple.The apple is red.),让学生观察发现总结 规律学习语法。通过完成听力任务培养学生抓住关键词寻找答案的听力技能,培养学生好的听力习惯 。同时以教材为本,结合实际,采用小组合作表演培养学生的口语技能和初步写作能力。本教学案例教学手段多样,使用希沃游戏教学,大转盘游戏,图片插入直观教学,图片裁剪,多媒体希沃白版5手机拍照视频上传,音乐剪辑插入播放等多种信息技术教学手段提高学生学习兴趣,调动学生积极性, 尽力让学生全体参与。教学过程中贯穿课程思政的理念,作业设计注重学生能力的培养。
简介:【摘要】互联网技术的迅速发展与普及,推动着基础教育新课程改革,面对数字技术带来的全新教学模式,教师们与时俱进,在学习中尝试新的教育技术来提高教学效率,构建高效课堂取得了可喜成绩。美术学科作为美育教育的主要课程,在此大背景影响下,教改实践也取得了一些成效。本文围绕美术学科的教改尝试,从营造情境美、再现情境美、体验情境美、实践后的反思与体会四个方面,浅述互联网在初中美术课堂教学实践中发挥的作用。
简介:摘要:课堂教学是学校教学的主阵地,是教师立身之本,也是学生获得知识技能的主战场,课堂效率的高低是衡量教师及学校教学质量优劣的重要标尺,而互动式的课堂教学将为教学质量提升添彩赋能。
简介:AbstractImmunotherapy that targets checkpoints, especially programmed cell death protein 1 and programmed cell death ligand 1, has revolutionized cancer therapy regimens. The overall response rate to mono-immunotherapy, however, is limited, emphasizing the need to potentiate the efficacy of these regimens. The functions of immune cells are modulated by multiple stimulatory and inhibitory molecules, including lymphocyte activation gene 3 (LAG-3). LAG-3 is co-expressed together with other inhibitory checkpoints and plays key roles in immune suppression. Increasing evidence, particularly in the last 5 years, has shown the potential of LAG-3 blockade in anti-tumor immunity. This review provides an update on the biological properties and clinical applications of LAG-3 in cancers.
简介:许多孕妈在孕晚期面临分娩选择时,为了减少疼痛,同时会选择剖腹产,但其实有研究表明,无论是对于宝宝的健康长还是孕妈的恢复来说,选择顺产都是更好的方式,为了孕妈更好的了解顺产的相关知识,减少心理负担,我们一起来了解孕妈符合哪些条件才能选择顺产,以及顺产后护理的相关知识吧。
简介:摘要目的探讨微小RNA(miR)-3529-3p抑制卵巢癌SKOV-3细胞增殖的作用机制。方法研究时间为2021年1月至5月。分别转染NC mimic(NC组)和miR-3529-3p mimic(miR-3529-3p组)至卵巢癌SKOV-3细胞。实时荧光定量逆转录聚合酶链反应(qRT-PCR)检测转染效率。CCK-8法检测每组细胞的光密度值。集落形成实验检测每组细胞的集落形成数。miRNAMap数据库预测miR-3529-3p的靶基因。qRT-PCR和蛋白质免疫印迹法(Western blot)检测靶基因的表达。采用独立样本t检验。结果miR-3529-3p组和NC组SKOV-3细胞中miR-3529-3p表达分别为(1.01±0.07)和(9.55±1.50),NC组miR-3529-3p表达显著低于miR-3529-3p组(t=5.68,P<0.01)。CCK-8法显示miR-3529-3p过表达抑制SKOV-3细胞增殖(P<0.05)。与NC组相比,miR-3529-3p组集落形成数显著减少(P<0.05)。miR-3529-3p的靶基因可能是E2F转录调节因子3(E2F transcription factor 3,E2F3)。与NC组比较,miR-3529-3p组SKOV-3细胞中E2F3基因表达明显降低(P<0.01)。结论miR-3529-3p可抑制卵巢癌SKOV-3细胞的增殖,其可能的分子机制是通过靶向抑制E2F3表达实现。
简介:AbstractIntroduction:Pathogenic variants in PLOD3, encoding lysyl hydroxylase-3 (LH3), can cause a hereditary connective tissue disorder that has rarely been reported. It is a multi-system disease, presenting with craniofacial dysmorphisms, skeletal and eye manifestations, sensorineural hearing loss, and variable skin manifestations. Severe central nervous system involvement has not been reported.Case presentation:A 10-month-old girl was admitted with development delay and clustered epileptic spasms. Hypertelorism, an upturned nose, and low-set ears were noted in physical examination. Cerebral magnetic resonance imaging showed multiple intracranial malacias and bleeding foci, extensive abnormal signals in the white matter, and obvious brain atrophy, which was consistent with cerebral small vessel disease (SVD). Electroencephalography suggested hypsarrhythmia. The vertebrae were flattened. The distal end of the metacarpal bone in the left hand was irregular. She was diagnosed with West syndrome. Whole-exome sequencing revealed a novel homozygous variant of c.1216_1218delCTC (p.L406del) in PLOD3, which was found to be inherited from her heterozygous parents.Conclusion:We report a patient with pathogenic PLOD3 mutation who presented with cerebral SVD. This report expands the phenotypic spectrum of LH3 deficiency.