提高轮机专业英语考证通过率的思考

明确轮机专业英语的教学目标;分析船员适任考试中轮机英语合格率不高的原因;提出改进英语教学模式,做好大学英语和专业英语教学间的有机衔接,加强轮机专业英语师资的培训,设立航海类英语教学与语言训练中心等教学改革措施;努力提高轮机英语的教学效果.     

高校图书馆大流通环境下的读者教育与管理探析

大流通运行模式已在高校图书馆普遍运用，其优势非常明显，但存在的问题也比较突出。通过对大流通的内涵、特征及其在大流通环境下存在的问题进行分析，指出了产生问题的主要原因，提出了图书馆加强读者教育与管理的思路。     

我国猕猴桃产业发展现状及对策建议

近年来我国猕猴桃产业发展迅速,产业发展潜力很大,但由于起步较晚、主导品种不明确、管理技术体系落后、质量标准体系不完善等原因,仍然存在诸多问题。主要问题包括(:1)尽管采收面积和产量均位居世界第一位,但单位面积产量低,而且生产总量占水果总量的比例仍然很小(;2)果实品质较差,进口单价始终高于出口单价,进出口贸易逆差明显。笔者通过对国内外猕猴桃生产、贸易数据的统计分析和产业调研,总结产业发展现状,梳理出我国猕猴桃产业存在的主要问题,并分析产生的原因,为促进我国猕猴桃产业健康发展提出对策及建议。     

EZH2-mediated regulation of NF-κB target gene expression in gastric cancer

AIM: To explore the mechanism by which over-expression of enhancer of zeste homolog 2 (EZH2) in a panel of gastric cancer cell lines is involved in tumorigenesis of gastric cancer. METHODS: Real-time PCR and Western blot were employed to examine the mRNA and protein levels of EZH2, respectively. MTS assay, cell migration and soft agar assay were performed to investigate the role of EZH2 in the regulation of stomach cancer behaviors. The effect of EZH2 on NF-κB target gene expression was determined by Luciferase reporter and real-time PCR. Co-immunoprecipitation was used to analyze the interaction of EZH2 and p65 in HEK293T cells. RESULTS: The expression levels of EZH2 were significantly increased in the gastric cancer cells compared with normal gastric epithelial cells. Pharmacological inhibition by DZNep or knockdown of EZH2 significantly compromised AGS and SNU-16 cell activity, cell migration and anchorage-independent cell growth. Moreover, siRNA knockdown of EZH2 impaired NF-κB downstream targets, such as IL-8, CXCL5 and CCL20. In addition, the interaction of EZH2 and p65 was detected. CONCLUSION: EZH2 mediates the growth of gastric cancer cells through the regulation of NF-κB downstream gene expression.     

设施韭菜安全生产关键技术集成

生产绿色、安全、放心韭菜，除了应用优质品种、实施绿色韭菜安全施肥技术外，推广绿色韭菜韭蛆防控新技术是关键。     

中国特色社会主义理论自信的内涵及实现路径

中国特色社主义理论自信是道路自信、文化自信、制度自信的理论基础。中国特色社会主义理论自信来源于理论本身的科学性、开放性,同时来源于中国社会主义的伟大实践。坚定理论自信有助于中国梦的实现,有利于彰显中国特色,有利于四个全面的实施。只有坚持解放思想、与时俱进,不断深化改革、进行创新,构建马克思主义话语体系,大力推进马克思主义的中国化、时代化、大众化,才能进一步增强中国特色社会主义理论自信。     

肾上腺皮质肿瘤良恶性鉴别方法探究

肾上腺皮质肿瘤（Adrenocortical Tumor,ACT）是一种常见的肿瘤,存在于人体的内分泌系统中,并且是引发肾上腺皮质癌（Adrcnocortical Carcinoma,ACC）进而导致死亡的主要原因.经典的＂Weiss系统＂在诊断明确性上存在种种无法解决的问题,但随着科技水平的发展,人们开始探索新的途径来鉴别ACT的良恶性,于是开始有了影像学和分子生物学技术等特异性的检查方法,从而进一步增强了诊断的明确性.现通过对比的方式,探究肾上腺皮质肿瘤（Adrenocortical Tumor,ACT）影像学检查和分子生物学技术检查的结果,从而能更准确地鉴别其良恶性.     

长杂2号在襄垣县的表现与高产栽培技术

对优质、高产谷子杂交种长杂2号的特征特性及其在襄垣地区的表现进行了分析,结果表明,该杂交种丰产、稳产、抗逆性强。针对其特点提出了相应的优质高产栽培措施:适时播种、适时喷除草剂并间苗、公顷留苗不应超过30万株、综合防治病虫害、及时抢收,为该品种大面积种植提供技术指导。     

秋水仙素处理日本矮紫薇种子变异的初步研究

用0.05％、0.10％、0.15％3种不同浓度秋水仙素和24、48、72 h 3个不同处理时间,对日本矮紫薇种子发芽性状和幼苗生长性状进行研究.结果表明:0.05％、0.10％、0.15％浓度秋水仙素处理日本紫薇种子24、48、72 h,随着秋水仙素浓度的增加和处理时间的延长其种子发芽率、发芽势、出苗率均有降低的现象,0.15％浓度秋水仙素溶液处理的日本矮紫薇种子72 h时出苗率低于10％.随着秋水仙素处理浓度和时间的延长,幼苗生长表现出矮化、根部变短、叶片变厚的趋势.该研究获得了3株矮化的变异植株及2株株型变异的幼苗,对日本矮紫薇突变体产生、筛选及良种选育提供了基础.     

Study on Developmental Expression of ApoCⅡ Gene mRNA in Liver Tissues of Pigs

The aim of this study was to investigate the developmental patterns of ApoCⅡ gene mRNA in liver in Mashen and Large White pigs, and study the relationship between the expression level of ApoCⅡ and the lipid metabolism in pigs.The mRNA relative expressions of ApoCⅡ gene in liver at seven stages of 1,30,60,90,120,150,and 180-day old in Mashen and Large White pigs were determined by quantitative Real-time PCR.The results showed that the developmental trend of ApoCⅡ mRNA expression in liver between Mashen and Large White pigs was different.The ApoCⅡ mRNA abundance was decreased from birth to 60-day old,then increased at 90-day old,and decreased again after that in Mashen pig.However,the relative expression amount in Large White pig was gradually decreased from birth to 150-day old and increased again at 180-day old.Except for the ApoCⅡ mRNA expression amount at 1-day old,the differences of the expression amount at other stages in Mashen and Large White pigs were significant or extremely significant (P<0.05 or P<0.01).The ApoCⅡ mRNA expression in liver was affected by age and breed,and could play an important role in lipid metabolism in pigs.