Northern

摘要： Rabbit Island is a tiny and remote island off northern Michigan''s Keweenaw Peninsula.Its 1 nature is the perfect destination for artists to come and 2 their creativity.New Yorker Rob Gorski 3 the island in 2010,who wanted to protect its natural state.

摘要： A sand and dust storm from Mongolia swept through northern areas of China on March 15 and led to the suspension of classes at schools and flight cancellations.The sandstorm was the strongest in nearly a decade and affected 12 provincial­level regions in northern China,according to the National Meteorological Center.

摘要： Psychology’s military use was discovered by ancient Chinese strategists in a very early time.In the Spring and Autumn period(770 B.C.-476 B.C.),psychological tactics were put into practice.After coming to the Northern and Southern Dynasties(420-589),psychological tactics had become the required course of strategists.Therefore,many generals of this period could use it adroitly.There were many classic examples which could help us analyze the psychological tactics of this era.The purpose of this paper is to introduce a few classic examples and summarize their characteristics.Then,we can better understand the psychological tactics of the Northern and Southern Dynasties.

摘要： Objective Though the Central Asian Orogenic Belt (CAOB) is characterized by widespread Phanerozoic crustal growth,there is little juvenile crust documented in its southeastern segment,northern margin of the North China Craton(NCC)(Zhang et al,2007,2009).Late Carboniferous Dongwanzi ultramafic-mafic cumulate complex occurs in northern margin of the NCC and is intruded by a syenite with depleted Sr-Nd isotopes (Ma et al.,2014).However,the age and petrogenesis of this syenite is poorly constrained.In this study,we present new petrological,zircon U-Pb and Hf isotopic data of the Dongwanzi syenite,in order to put insights on its formation age and petrogenetic relationship with cumulates.

摘要： 据8月13日报道,由于未能获得政府对建设新污水处理设施的批准,加拿大Excellence Paper的子公司Northern Pulp自2020年1月底以来一直处于停产状态。目前,该公司在2020年底前被给予债权人保护,正在进行重组,并希望最终能够重新开始运营。

摘要： Objective The Altyn Tagh marks the northern margin of the Qinghai-Tibet Plateau and lies between the Tarim block to the north and the Qaidam block,Qilian Orogen,and Kunlun orogenic belt to the south.The Altyn Tagh region contains ophiolite,high-to ultrahigh-pressure metamorphic rocks,and igneous rocks.Previous research has virified the occurrence of continental rifting,subduction,slab roll-back,and collision between the Tarim block and Proto-Tethys oceanic plate.Moreover,Kaladaban volcanic rocks are mainly distributed in the north Altyn region.Studies of the magmatic evolution of this region have proposed that Altyn oceanic plate was subducted during the Ordovician(Han et al.,2012;Wang et al.,2017).However,the specific timing and other aspects of the subduction are debated,and an investigation of granite porphyry in the Kaladaban area would improve our understanding of this subduction event.In this study,we present new U-Pb zircon dating result and Sr-Nd isotope composition data for granite porphyry from the North Altyn region.The objective is to constrain the timing of subduction of the North Altyn oceanic plate and establish the petrogenesis and magma source of the granite porphyry.

摘要： An abrupt temperature change and a warming hiatus have strongly influenced the global climate.This study focused on these changes in Inner Mongolia, China. This study used the central clustering method, Mann-Kendall mutation test and other methods to explore the abrupt temperature change and warming hiatus in three different temperature zones of the study region based on average annual data series.Among the temperature metrics investigated, average minimum temperature(Tnav) shifted the earliest,followed by average temperature(Tnv) and average maximum temperature(Txav). The latest change was observed in summer(1990 s), whereas the earliest was observed in winter(1970 s). Before and after the abrupt temperature change, Tnav fluctuated considerably, whereas there was only a slight change in Txav.Before and after the abrupt temperature change, the winter temperature changed more dramatically than the summer temperature. Before the abrupt temperature change, Tnav in the central region(0.322°C/10 a)and west region(0.48°C/10 a) contributed the most to the increasing temperatures. After the abrupt temperature change, Tnav in winter in the central region(0.519°C/10 a) and in autumn in the west region(0.729°C/10 a) contributed the most to the temperature increases. Overall, in the years in which temperature shifts occurred early, a warming hiatus also appeared early. The three temperature metrics in spring(1991)in the east region were the first to exhibit a warming hiatus. In the east region, Txav displayed the lowest rate of increase(0.412°C/a) in the period after the abrupt temperature change and before the warming hiatus,and the highest rate of increase after the warming hiatus.

摘要： Dysprosium is an essential ingredient in the production of NdDyFeB(dysprosium-neodymium-iron-boron)magnets which are used in clean energy and high-tech solutions.Northern Minerals Ltd(ASX:NTU)is progressing the staged development of its Browns Range heavy rare earths project as global events create a unique moment in the rare earth metals industry.

摘要： 本发明具体涉及一种反义RNAch‑MYC‑AS1表达Northern blot检测引物、试剂盒，属于分子生物学领域。所述引物的序列如SEQ ID NO.8和SEQ ID NO.9所示。本发明进一步提供了ch‑MYC‑AS1表达Northern blot检测试剂盒，为ch‑MYC‑AS1表达规律分析提供了方法和基础。

摘要： 本发明公开了一种免预杂交的Northernblot杂交液及其应用，该免预杂交的Northernblot杂交液的pH值为7.4，包括如下终浓度的组分：5×SSC、20mMNa2HPO4、质量百分比为7％的SDS、质量百分比为0.02％的聚乙烯吡咯烷酮、质量百分比为0.02％的聚蔗糖400、质量百分比为0.02％的BSA、质量百分比为0.5％的吐温‑20；所述5×SSC含有0.75M的NaCl和0.075M的柠檬酸钠。采用本发明的Northernblot杂交液，无需进行杂交液与膜的预杂交步骤，即可直接将探针加入到杂交液中，使探针与尼龙膜上RNA进行杂交，减少实验步骤和时间。

摘要： 本发明属于分子生物学领域，具体涉及一种长链非编码RNA lnc‑ALVE1‑AS1表达Northern blot检测引物及试剂盒。所述引物的序列如SEQ ID NO.8和SEQ ID NO.9所示。本发明进一步提供了lnc‑ALVE1‑AS1表达Northern blot检测试剂盒，为lnc‑ALVE1‑AS1表达规律分析提供了方法和基础，在生产实践可用于检测鸡群的禽白血病天然免疫状态。

摘要： 本发明公开了一种免预杂交的Northernblot杂交液及其应用，该免预杂交的Northernblot杂交液的pH值为7.4，包括如下终浓度的组分：5×SSC、20mMNa2HPO4、质量百分比为7％的SDS、质量百分比为0.02％的聚乙烯吡咯烷酮、质量百分比为0.02％的聚蔗糖400、质量百分比为0.02％的BSA、质量百分比为0.5％的吐温‑20；所述5×SSC含有0.75M的NaCl和0.075M的柠檬酸钠。采用本发明的Northernblot杂交液，无需进行杂交液与膜的预杂交步骤，即可直接将探针加入到杂交液中，使探针与尼龙膜上RNA进行杂交，减少实验步骤和时间。

摘要： 本发明涉及植物病毒检测技术领域，尤其涉及一种基于Northern杂交检测番茄黄化曲叶病毒的方法。包括以下步骤：步骤1.根据番茄黄化曲叶病毒基因组序列设计引物C4‑F和C4‑R，PCR法制备带地高辛标记的番茄黄化曲叶病毒特异性DNA探针；步骤2.感染番茄黄化曲叶病毒3天后的烟草总RNA提取和总RNA在琼脂糖胶上的分离；步骤3.虹吸法转移步骤2中分离的总RNA至带正电的尼龙膜，转膜结束后在紫外交联仪下固定膜上的总RNA；步骤4.预杂交，并使用步骤1中制备的探针进行杂交；步骤5.洗涤杂交膜及杂交信号检测。该方法克服了现有检测技术的缺点，提供了一种灵敏、特异检测番茄黄化曲叶病毒的方法。

摘要： 本发明具体涉及一种反义RNAch‑MYC‑AS1表达Northern blot检测引物、试剂盒，属于分子生物学领域。所述引物的序列如SEQ ID NO.8和SEQ ID NO.9所示。本发明进一步提供了ch‑MYC‑AS1表达Northern blot检测试剂盒，为ch‑MYC‑AS1表达规律分析提供了方法和基础。

摘要： 本发明属于分子生物学领域，具体涉及一种长链非编码RNA MYC‑AS1表达Northern blot检测引物、试剂盒。所述引物的序列如SEQ ID NO.8和SEQ ID NO.9所示。本发明进一步提供了MYC‑AS1表达Northern blot检测试剂盒，为MYC‑AS1表达规律分析提供了方法和基础，在临床医学中可用于检测肿瘤样品癌基因的表达情况。

摘要： 本发明属于分子生物学领域，具体涉及一种长链非编码RNA lnc‑ALVE1‑AS1表达Northern blot检测引物及试剂盒。所述引物的序列如SEQ ID NO.8和SEQ ID NO.9所示。本发明进一步提供了lnc‑ALVE1‑AS1表达Northern blot检测试剂盒，为lnc‑ALVE1‑AS1表达规律分析提供了方法和基础，在生产实践可用于检测鸡群的禽白血病天然免疫状态。

摘要： 本申请公开了一种基于Northern杂交检测家蚕microRNA的方法，包括以下步骤：RNA的分离纯化；探针与Marker的放射性标记和标记产物纯化；制胶和电泳；转膜与RNA分子的交联固定；预杂交和杂交；洗杂交膜和低温放射自显影；杂交探针的剥脱与膜的再利用。该方法RNA质量高，材料成本低，电泳条带整齐，噪音信号低，适合于鉴定家蚕miRNA和其他小RNA，而且对其他物种的miRNA及其靶基因鉴定也有一定参考价值。