Conditions influencing rural and town women's participation in the labor force : Some important considerations

This paper suggests that changes in the basic conditions of subsistence of Bangladeshi families, particularly increasing destitution and landlessness, are prime factors in forcing increasing numbers of rural and urban women into the wage sector of the economy. It has been found that as an initial step towards women's control over their own lives, participation in the labor force may be considered an advance for women in comparison to previous forms of labor. It is suggested, however, that the patterning of wage labor in less developed capitalist countries, to the extent that it follows Western trends, has every possibility of duplicating in Bangladesh the structures of women's exploitation and differential income earning opportunities hindering women's development in other countries, It is also suggested that traditional forms of social control legitimating and governing the subordination of women in Bangladesh are being undermined by worsening socio-economic conditions. It has been found that the traditional system controlling women's subordination, which is known as purdah, may be losing saliency for increasing numbers of rural families. This leads one to conclude that the development and extension of a wage economy brings new forms of social control involving contradictory results, exploitation, and dependence on the one hand, and changing conditions of independence and control on the other.     

肥胖发生机制的研究新进展

从肥胖的病因学分析角度,对肥胖的中枢机制,UCPs研究、遗传因素与肥胖、脂肪细胞凋亡与肥胖等几个方面进行了研究。     

Replication of the Mere Presence Hypothesis: The Effects of Cell Phones on Face-to-Face Conversations

Research on the mere presence hypothesis shows mixed findings for the effects of cell phone presence on various conversation outcomes. The current study performed a partial replication of Przybylski and Weinstein’s (2013) study, which showed that strangers were likely to report lower levels of relational quality and empathy (among other variables) when a cell phone was placed in their view, particularly when their conversations were rated as meaningful. The results of the current study failed to replicate Przybylski and Weinstein’s (2013) findings, because cell phone presence did not significantly influence relational quality or empathy, nor was meaningfulness a moderator of cell phone presence on conversation outcomes. Changing norms in cell phone usage and competing explanations for cell phone effects are explored as possible explanations for the failure to replicate.     

Competing Discourses and Meaning Making in Talk about Romantic Partners’ Cell-Phone Contact with Non-Present Others

Focus groups were conducted with 51 college students to examine how participants engaged in meaning making about the presence and use of cell phones with non-present others while in the context of dating and spending time with romantic partners. Grounded in relational dialectics theory, qualitative analysis revealed two sets of competing discourses at play in college students’ talk about cell phones: discourses of community and romance and discourses of control and freedom. The interplay of these competing discourses illuminated participants’ struggles with being available to others while trying to provide attention to their dating partners. Theoretical and practical implications are discussed.     

细胞生物学实验教学改革探索与实践

细胞生物学实验教学不仅是理论知识的具体实践,更是培养学生综合能力的重要手段。本课程组针对实验教学中存在的问题,通过优化实验教学内容、更新教学手段以及完善评价及考核制度等方面进行改革,有效提高了教学质量,同时也为创新型和实践型人才的培养提供了新的思路。     

Correlation of matrix metalloproteinase-2, -9, tissue inhibitor-1 of matrix metalloproteinase and CD44 variant 6 in head and neck cancer metastasis

INTRODUCTIONHeadandneckcancersquamouscellcarci noma (HNSCC)isthefifthmostfrequentmalig nantneoplasmworld wide ;andischaracterizedbylocalinvasion ,disseminationtolocallymphnodeandfrequentrecurrenceattheprimarysiteoftumour.Despiteimprovementsindiagnosisandt…     

Pt/C和PtRu/C在低温燃料电池中的电氧化比较

利用循环伏安法分别研究了Pt/C和PtRu/C两种商业催化剂在甲醇和乙醇中的电化学特性,并且对其不同之处进行了分析和讨论,从中可以发现PtRu/C在避免催化剂中毒和提高反应的起始电位和催化活性方面具有明显的优点。     

Science Letters:Expression of a begomoviral DNAβ gene in transgenic Nicotiana plants induced abnormal cell division

An increasing number of monopartite begomoviruses are being identified that a satellite molecule (DNAβ) is required to induce typical symptoms in host plants. DNAβ encodes a single gene (termed βC1) encoded in the complementary-sense. We have produced transgenic Nicotiana     

肿瘤靶向治疗中低频超声联合微泡造影剂的研究新进展（英文）

随着超声影像新技术的不断发展和超声造影剂制备技术的不断改进,低频超声和超声造影剂在肿瘤治疗中的作用日趋重要。利用超声波与微泡造影剂的相互作用及所产生的生物学效应,可实现微泡携的基因、药物等向靶目标组织的转移释放,介导肿瘤细胞的凋亡及肿瘤微血管的栓塞阻断等,从而起到靶向治疗的作用。随着超声波参数的优化和靶向微泡造影剂的研制,以及各种兼具诊治功能的复合型应用探头的面世,低频超声联合微泡造影剂介导肿瘤靶向治疗将为临床肿瘤的治疗带来新的希望。