少数民族大学生生殖健康知识现状调查与教育方式探讨——以中央民族大学为例

目的:了解少数民族大学生性与生殖健康状况,对比少数民族大学生与汉族大学生在性与生殖健康方面的差异,探讨引起差异的背景原因及相应的教育方式。方法:采用问卷法对中央民族大学955名大二学生就生殖健康及相关问题进行问卷测查。结果:(1)在性与生殖健康知识上存在显著的民族差异,在性态度上不存在显著的民族差异;(2)在性态度上存在显著的性别差异,在性与生殖健康知识上不存在显著的性别差异;(3)69.8%的大学生认为学校不够重视生殖健康教育;68.5%的大学生希望通过自己了解获取生殖健康方面的知识。结论:少数民族大学生需要性和生殖健康知识的普及,性态度并不决定于民族差别而取决于性别和成长的环境。     

‘Mature regionalism’ and the genesis of ‘functional projects’: ‘educational regionalism’ in small (and micro-states)

This article advances that the movement towards ‘deeper’ Caribbean integration has generated a shift from ‘immature’ regionalism to a ‘mature’ form of regionalism. Thus, mature regionalism, a new governance mechanism, in regulating the institutional and legal framework of Caribbean Single Market and Economy is drastically altering national education governance within the Caribbean Community. In focusing on the functional aspects integration, this article suggests that mature regionalism in education is built upon collaborative governance and encompasses multipartner governance arrangement – with the state, private sector, civil society, and the community as well as hybrid public–private and private–social partnerships and co-management regimes. It concludes that the instrumentalisation of mature regionalism in education is giving way to ‘educational regionalism’ defined by the movement towards structured institutional mechanisms, to facilitate the deepening of Caribbean integration.     

“This Is How You Hetero:” Sexual Minorities in Heteronormative Sex Education

The efficacy of sex education has been questioned, as students participate in high rates of unsafe sex after completion. Without exploring various sexual minority (SM) identities (e.g., gay, lesbian, and bisexual) and forms of sex, sex education may be especially unhelpful for SMs by perpetuating the heteronormative (i.e., assuming heterosexuality is normal) environment they typically experience. In the present qualitative study, semistructured interviews were conducted with 12 SMs regarding their experiences with sex education using a grounded theory approach. Participants described sex education as being heteronormative and exclusive of their identities, making them feel invisible, sexually unprepared, and shameful. Sex education also reportedly contributed to sexual hesitance, sexual violence, and risky sexual behaviors. Participants endorsed histories of depression, anxiety, and suicidality, often associated with their identity. To become more informed and sexually prepared, they sought information through conversations with others, online searching, college courses, and trial and error sexual experiences. Participants also advocated for inclusive sex education, which would incorporate all identities and associated safe sex practices. They concluded that inclusivity in curricula could lead to various improved outcomes for SMs, such as safe sex, a sense of community, identity confidence, healthy relationships, and resilience.     

Medical students’ perceptions and preferences for sexual health education

Sexual health topics are not well-covered in US medical schools. Research has not typically asked medical students what sexual health topics they would like addressed and their preferred methods of sexual health education. This study attempted to address this deficit via an online survey of medical students at an institution where little sexual health education is offered. Participants reported receiving the most education in endocrinology and sexually transmitted infections, but they also saw the following topics as important: sexual development, child sexual abuse, healthy sexuality, male sexual dysfunction and female dysfunction. Participants were more confident in talking to adults about sexual health matters than children, and more uncomfortable talking to opposite sex patients. Perceived barriers to sexual health education in medical school included a busy curriculum, other topics being seen as more important, religious influences, discomfort with sexuality and unqualified teaching faculty. Participants favoured training strategies that included panels of experts, panels of patients and role-plays conducted by seasoned professionals in sexual health. To reduce the barriers to sexual health education in US medical schools, educators need to highlight the relevance and importance of sexual health topics to the future work of physicians.     

In the spirit of William Georgetti: scrutiny of a prestigious national scholarship selection process

Postgraduate scholarship programmes are increasingly important for supporting gifted students from diverse backgrounds. Systems and processes in the application, determination and delivery of scholarships must be robust, transparent, accountable and equitable. However, they are rarely evaluated. One of the most prestigious scholarships in New Zealand – the William Georgetti Scholarship – is investigated here for the impact of student’s grade point averages (GPAs) and sex on applicant’s progression, the level of agreement between Scholarship Board member rankings, and whether applicants or members’ sex is material to any outcomes. Data from 2007 to 2015 were extracted, and contained 301 applicants considered for shortlisting, 78 who were shortlisted and 60 successful recipients evaluated by 17 Scholarship Board members (5 female, 12 male). Mean GPAs significantly increased over time amongst applicants, those shortlisted, and those successful. While 60% of applicants were female, only 49% of those shortlisted were female; however, this was explained by GPA differences. Some 52% of successful applicants were female. Ranking discordance amongst members was relatively high, but no differential sex biases were noted. The empirical results suggest that current systems and processes are consistent with the scholarship’s deed, although the difference in GPA scores between female and male applicants is of concern.     

电视剧传播与性别现代性的建构——以电视剧《中国式离婚》为例

电视剧传播对性别现代性的建构有着重要的作用,因此从传播、性别视角切入现代性问题将会促使人们更深层次地理解正视新的社会文化语境下女性所遭遇的性别困境和角色认同危机,以及性别现代性建构的重要性和迫切性。而电视剧《中国式离婚》通过男女主人公婚姻的破裂,从性别角度反映了现代性话语中的有关自由与责任、平等与差异、理性与宽容、权利与义务、理解与信任等种种问题。     

基于手机的打印机接口设计

设计了以手机作数据源的打印机接口电路。详细给出了接口的硬件方案和软件流程。实验表明,该方案具有很强的实用性和应用价值。     

Improving micropropagation of some grape cultivars via boron,calcium and phosphate

BackgroundAn efficient regeneration protocol is a priority for the successful application of plant biotechnology. Grape nodal explants were used to develop a micropropagation protocol for Thompson Seedless and Taify cvs. Explants were cultured on MS medium supplemented with Kinetin or benzylaminopurine (BA) and indolebutyric acid (IBA).ResultsFor both cultivars, axillary buds were grown, only, on a medium enriched with kinetin, moreover, shoot tip necrosis and callus formation were observed on Thompson Seedless cv. cultures grown on a medium with BA. Supplementing the growth medium with 100 mM (boron) B and 2.5 mM (calcium) Ca successfully help overcome these phenomena. The highest regenerated shoot numbers (14 and 6.2 explant⁻¹) for Taify and Thompson Seedless cvs., respectively, were on media supplemented with 13.2 µM BA + 4.9 µM IBA and BA 13.2 µM + 5.8 µM IBA, respectively. Moreover, these media supported the developing shoots to have the heaviest dry weights (1.46 and 0.72 mg explant⁻¹) for Taify and Thompson Seedless cvs., respectively. Thompson Seedless cv. regenerated shoot numbers and their dry weights were significantly increased by increasing the MS medium PO₄⁻ concentration. However, these two parameters were significantly decreased for Taify cv. Developing shoots were elongated and rooted on MS medium enriched with 4.9 µM, IBA 100 mM B and 2.5 mM Ca. Plantlets were acclimatized and successfully transferred to the greenhouse conditions.ConclusionsA novel promising protocol for Thomson Seedless and Taify cvs. micropropagation using single nodes has been developed.How to cite: Al-Aizari AA, Al-Obeed RS, Mohamed MA-H. Improving micropropagation of some grape cultivars via boron, calcium and phosphate. Electron J Biotechnol 2020;49. https://doi.org/10.1016/j.ejbt.2020.10.001     

Interleukin-1 receptor antagonist gene polymorphism and obesity: A pilot study from north India

The main adverse consequences of excess bodyweight are cardiovascular disease, type II diabetes, and several cancers, IL-1Ra serum concentration has been reported earlier to increase in human obesity and it is therefore assumed that the polymorphism of IL-1Ra may influence cytokine production. We designed this study to investigate whether the IL-1Ra polymorphism was associated with obesity. A total number of 103 individuals; 19 lean (BMI<25 Kg/m²), 51 overweight (BMI 25–29.9 Kg/m²) and 33 obese (BMI≥30.0 Kg/m²) were enrolled in this study. Genotyping was performed using a polymerase chain reaction PCR amplification of the intron-2 fragment harboring a variable number of tandem repeat (VNTR) nucleotide sequences 86 pb of tandem repeat. The PCR products were separated on 2% agarose gel. Statistical analysis was performed using SPSS software (version 11.5). We found no significant difference in genotype and allele frequencies between the three groups; lean vs. overweight and lean vs. obese (p=0.323; 0.202; 0.123 and 0.068 resp). However, an increased risk for obesity had a propensity to be higher in those having genotype II/II. This genotype has been reported to be a ‘high producer’ of IL-1Ra. Although no statistically significant relationship between IL-1Ra polymorphism and BMI was observed, however, a trend towards an increase of allele^*II in overweight and obese group was observed. This may suggest that IL-1Ra appears to be induced by inflammatory stimuli as well as obesity-associated factors. This is relatively a pilot study: but nevertheless, may assist in identifying the pathophysiological cause for obesity.