首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 46 毫秒
1.
以哲里木盟地区常见的几种禾本科牧草种子为试验材料,观测了它们在不同浓度盐液处理下的萌发率,结果表明,苏丹草与饲用种草在种子萌发期表现出较好的耐性,其种子萌发率在各浓度盐浓下均显著高于其它牧草。  相似文献   

2.
本研究采用乙烯利、缩节胺对蓖麻进行浸种处理,力求促进蓖麻健壮生长,最终提高经济产量。结果表明,乙烯利和缩节腔浸种处理能显著提高幼苗茁壮度,增加叶绿素含量,促进干物质积累,增强植物抗递性,其中以60克/米3浓度的乙烯利和90克/米3浓度缩节胺浸种处理效果最佳。  相似文献   

3.
不同浓度的PEG溶液引发处理蓖麻种子不同时间,经恒温培养发芽试验和耐冷试验,结果表明:PEG引发可提高蓖麻种子活力,以浓度为30%引发处理2天的效果最好,发芽率为96.1%;活力指数达112.10,并且耐冷性增强,低温处理后发芽率仍可达89.5%,活力指数达59.70。  相似文献   

4.
本文研究了油菜(BrasricachinensisVar)种子期、苗期施用稀土溶液对产量的影响。结果表明:五种不同浓度稀土对油菜产量均有影响,其中0.05%浓度稀土液具最显著增产效果。  相似文献   

5.
眼下,啤酒销售旺季即将到来,而许多消费者总感觉到商店买的瓶装啤酒或在一些饭店和啤酒摊上喝到的散啤酒味道不是太“纯正”,有的认为是掺进了水,有的认为是长时间放置,也有的认为是假冒产品,其实这几种可能都有。 如何鉴别啤酒才不致于上当呢?据专家介绍,鉴别啤酒的质量主要从以下三个方面来看; 从外观及颜色来看──优质啤酒清澈透明;有光泽,无明显悬浮物,二氧化碳含量丰富,泡沫洁自细腻、持久.挂杯 而质量差的啤酒则给人一种浑浊的感觉,甚至有的会出现悬浮物,倒人杯子后泡沫少而且很快消失。 从气昧上闻──忧质啤酒有淡…  相似文献   

6.
蚕豆根尖微核率(MCW)、染色体畸变率(CAF)与重金属离子间有明显的效应-剂量关系。在较低剂量情况下,两者呈直线回归;在较高条件下,据本实验(采用Ph和Hg)结果,随处理浓度的提高,其关系曲线为“M”形。通过对聚丙烯酸胺过氧化物同功酶电泳的结果及前人成果分析,认为这与同工酶变化及抗性酶活性有关。另外,对于Pb、Hg处理,间期MCNF,中期CAF和后期CAF随浓度的升高并不同步达到最大值,即中期CAF与剂量的线性区段长于其他两者。  相似文献   

7.
本文以HA-A-缓冲体系为例,从理论上探讨了总浓度、组分比及外加酸碱浓度对缓冲溶液缓冲能力的影响。缓冲溶液的总浓度越长,组分比越接近1,外加酸碱浓度越接近特征浓度,缓冲容量越大。  相似文献   

8.
2007年,人类迎来了又一个暖冬。百年来,人类活动大量排放的二氧化碳、甲烷、氧化亚氮等气体,是全球气候变暖的主要原因。全球变暖影响了人类的生活,也引起了人类的关注。联合国秘书长潘基文曾就气候变暖问题向全球发出警告:“世界正处在巨大灾难的边缘”,“包括纽约、孟买、上海在内的一些沿海城市将被淹没”。让人欣慰的是,2007年12月3日,在印尼举行的联合国气候大会上签署的《巴厘岛路线图》,成为人类应对气候变化历史中一座新的里程碑。此前,2005年正式生效的《京都议定书》,其减排承诺也只到2012年。《巴厘岛路线图》的签订,是承接《京都议定书》应对气候变化新一轮国际协议谈判。中国作为全球第二大温室气体排放国,并可能很快超过美国成为第一排放国,目前已经把环境保护作为一项基本国策,并提出在“十一五”期间单位GDP能耗在2005年基础上降低20%。西部地区依靠广阔的环境容量,具有控制和抵消温室气体排放的功能,在缓解气候变暖方面大有可为。  相似文献   

9.
Nacl胁迫对荞麦种子萌发的影响   总被引:2,自引:0,他引:2  
以荞麦种子为试验材料,研究了不同浓度的Nacl溶液对种子萌发的影响.研究表明:不同浓度Nacl溶液对荞麦种子萌发主要分两个阶段影响,在低浓度下,对荞麦种子萌发有一定的促进作用;在较高的浓度下,则对荞麦种子萌发起抑制作用,并随Nacl浓度的进一步提高,抑制作用增强.  相似文献   

10.
乳酸菌素体外抑菌实验的研究   总被引:2,自引:0,他引:2  
目的:验证乳酸菌素体外抑茵作用.方法:以微量二倍稀释法测定乳酸菌素的抑菌效果.结果:乳酸菌素对金黄色葡萄球菌的抑茵浓度为31.25mg/ml,对大肠杆菌的抑菌浓度为62.5mg/ml,对链球菌CLCC和01346的抑菌浓度分别为31.25mg/ml和62.5mg/ml,对沙门氏茵的抑菌浓度为50mg/ml,对李斯特杆菌的抑菌浓度为50mg/ml.结论:乳酸菌素本身具有抑菌作用,且对革兰氏阳性菌的抑菌效果强于对革兰氏阴性茵的效果.  相似文献   

11.
In August 1999, Jacques Derrida gave a number of lectures and seminars in Melbourne and Sydney. The seminar of 13 August, held at Sydney's Seymour Centre Theatre, was open to the public. It consisted of a question-and-answer session with Genevieve Lloyd, David Wills, Paul Patton and Penelope Deutscher. Its title, 'Themes from Recent Work', reflected interests in the work from Specters of Marx (1994) onwards which some, including Paul Patton, have referred to as deconstruction in its affirmative phase. What follows is a by-no-means verbatim record of the event. Rather it is but one member of the audience's account of what transpired in the seminar – an account which is therefore necessarily selective and pressed through the grid of my own quasi-philosophical interests. Following this account of the seminar, I offer some marginal notes on the open discussion following the seminar, then, finally, some reflections on a particular matter discussed at the dinner which followed that – madness.  相似文献   

12.
As an alternative to the stereotypical mass tourism, independent travellers – travellers who travel for extended periods on low budgets while ostensibly avoiding formalized tourist activities and locales – are invested in constructing ‘authentic’ travel experiences. Practices such as ‘off-the-beaten-track’ travel and cultural engagement provide the means by which independent travellers are able to make claims to such authenticity. Authenticity is constructed by travellers through idealizations of intimacy and non-commodification. These idealizations are tangled in narrative representations of ‘real’ India and ‘real’ Indians, their ‘real’-ness typified by an absence of other travellers, tourists and, more generally, Western contamination. In these ways, ‘authentic’ travel is dependent upon actively constructed binaries of Western travelling subjects and exotic Indian objects. Yet travellers' fantasies of the Other are fragile and subject to collapse at moments in which so-called Others articulate their subjectivity in a way that is inconsistent with travellers' expectations. Through a focus on travellers' narratives of their experience, both the requirement for an Orientalist dichotomy as well as the ruptures that continually challenge this dichotomy, will emerge.  相似文献   

13.
A weaver, seamstress, laundress and artist, in this essay I shall spin a yarn, tangle a web, and construct a text(ile) of the inter-weave of narrative and identity that I define as my intellectual, textual, somatic and material/visual practice obsessions. My work explores ‘the places in-between’ in the entanglements of Irish and Northern Irish gender and identity, and in the abject fabrics of death and of desire. As an Irish feminist, sense-making of the complexities, conundrums, challenges and contradictions of my land, my cloth, my body and my culture owes much to Irish women before me who fought for female suffrage, and Irish women now – north and south of the border that divides the island of Ireland – who still struggle for equality of citizenship, social justice, human rights, and full reproductive autonomy. My contention is that when we accept that Ireland herself is a many-layered cloth, a stained and bloodied cloth, a cloth marked irreversibly by history, conflict, denial and abuse, stained by its own repression, marked through denial of all its people’s rights and needs, and bloodied by its greatest export, the haemorrhage of its people, then – polemical, didactic or reflective, with more compassion, empathy, humility and heart – we just might make peace with our past.  相似文献   

14.
This paper deals with issues of identity, nationalism, postcolonialism, and self-other relations with a focus on a period of transformative events in North Cyprus. It notes how nationalism has been the dominant means of identification for Cypriots in their modern history, and argues that unless weakened and supplanted by a radically pluralist democracy, nationalism imagines one's identity as an indivisible unity and has no place for different others within the nation. However, a pressing relationship with others and otherness is no stranger to Cypriots either, which makes it clear that the border that defines the ‘we’ of such nationalism is, at the same time, the line that divides the self intrinsically, indicating the otherness of the self or its alterity. Subjectivity involves subjection to the other.  相似文献   

15.
ABSTRACT

Mobility and migration are inherent ingredients of Indonesian cultures. In an archipelago with thousands of islands of various size, character and nature, mobility is an important means to make a living and to survive by migration. The right to free movement in Indonesia is constitutionally granted. It can create mobility and give expression to equal citizenship rights at the same time as it can trigger the enforcement of borders among cultural groups and the ethnification of local and regional politics. Mobility thus always comes along with immobility. Physical mobility of one group of people might cause immobility of another group or it might create cultural and political immobility in the same group. In places such as Eastern Indonesia, people have developed reciprocal means to integrate newcomers. Whereas the immigrants are usually disadvantaged citizens with regards to land and customary rights, those living in the area for generations have nonetheless become integral parts of quite peaceful local settings, one way or the other. The advancement of decentralization, democratization and direct elections of political representatives can lead to political empowerment, the promotion of ethnicity as election capital and changing patterns of belonging. This paper illustrates these ambivalences by looking at mobility in Indonesia more generally and how changing national policies and laws lead to reinterpretations of mobility patterns and trigger changes in relations between local population groups and existing mechanisms of cultural and political inclusion and exclusion. Butonese migrants in Maluku will here serve as a case study.  相似文献   

16.
本文就三江源自然保护区开发生态旅游产品的可行性及发展潜力,运用SWOT分析模式进行客观分析,并得出三江源开发生态旅游产品是实现该地区可持续发展的最佳途径。  相似文献   

17.
文章从历史学、宗教学、民俗学等角度,将流行于黄南藏族自治州同仁县隆务河流域的六月会主体节目之一"玛泽"的文化内涵进行了新的探讨,并就"玛泽"节目的历史和宗教渊源关系,民俗形成过程,以及对军事、生产活动中的意义提出了自己的看法.  相似文献   

18.
Following feminist and postcolonial discourses, this paper uses the concept of ‘everyday experience’ as a tool to trace the social world of educated Palestinian women in Israel. The term refers to the complex array of these women's experiences in racialised and gendered social sites, as well as within the class, religious, and ethnic contexts in the subordinated group and its relations with the dominant Jewish group. Based on 108 in‐depth interviews with Palestinian women citizens of Israel, the paper claims that educated Palestinian women are located in a ‘third place’ between cultural, gender, class, national and racial structures that generates a continual ambivalence. Within this marginal, ‘unhomely’ space women negotiate their own identities and challenge dominant social definitions. Women create various modes of interim spaces and multi‐dimensional, shifting identities for themselves. The ambivalent attitudes generated by the women's experiences expose the possibility of shedding categorising markers. The omnipresent existence of the gendered, racialised regime of knowledge makes every place a potential site of subversion and resistance.  相似文献   

19.
岷江上游羌族宗教信仰是多元混杂的,导致这种现象的产生,既有历史的因素,又有现实的因素.历史的因素可追溯到古羌人时代,从那里我们可寻羌族宗教信仰之渊源的一些踪迹;现实的因素可从羌族地处藏彝走廊,受汉藏文化影响的现状中去采撷一些实际的表现.本文拟就羌族原始宗教信仰中的藏文化因子,羌族天神信仰与藏族民间宗教信仰的渊源,羌族和藏族有关人类起源传说的相似与区分,羌族原始宗教信仰与佛教文化的糅合等方面对羌族宗教信仰与藏文化的关系作一较为深入的考察分析.  相似文献   

20.
ABSTRACT

The focus is the oscillation among leave voters in the EU referendum from the exercise of rights - an act of dis-identification – towards the assertion of identity as members of a British community. This was mediated by voters acting in an association of citizens calling on the equalising agency of the British people whilst claiming membership of a locally circumscribed community, perceived as injured, through entanglement with the Other prominent among them Europeans. Hence the recovery of the injured community as the object of the denunciators’ desire for identity coupled with the fear of the Other. Predicated on this was the resumption of class, gender and ethnic roles reflected in division among voters. The denunciation of togetherness with Europeans served leave voters to substitute the exercise of rights with a longing for identity. Instrumental in this was the lack of deliberation in the plebiscite to articulate the will of individual voters through a general will. The ‘direct power’ exercised enabled many to cast away their role as citizen in an attempt to claim their privileges as members of a racially and culturally demarcated British community. Paradoxically, the voters’ unashamed disavowal of their agency as citizens by seeking to restore a divided social world as the source of their identity was represented as an exercise in democracy. To some playing on words was supplemented by the use of force removing the gap between the discursive exclusion of the Other and the continued physical presence of bearers of different races and culture.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号