巴音布鲁克高寒草甸不同群落类型的生物量

生物量是生态系统获取能量能力的集中体现, 对生态系统结构的形成具有十分重要的影响。草地生态系统是陆地生态系统分布最广的生态类型之一, 在全球变化中的作用非常重要。本文以新疆天山中部的巴音布鲁克高寒草甸为研究对象, 选取了黑花苔草(Carex melantha)、鬼见愁锦鸡儿(Caragana jubata)和线叶嵩草(Kobresia capillifolia) 3种典型的群落类型,开展了生物量研究。结果表明:①黑花苔草群落盖度最大, 为100%, 物种数最低, 每平方米拥有植物8种～11种。鬼见愁锦鸡儿群落盖度次之, 为86.14%, 物种组成丰富, 每平方米拥有植物12种～15种。线叶嵩草群落盖度最低, 55.7%, 每平方米拥有植物13种～16种;②各群落内部的物种丰富度与地上生物量之间无显著关系, 而群落间表现出负相关, 差异极显著;③黑花苔草群落的地下生物量最大, 线叶嵩草群落次之, 鬼见愁锦鸡儿群落最低, 分别为13 608.8g/m²、6 097.8g/m²和2 554.74g/m²;④3种群落的地下生物量呈现出“T”形分布的模式, 且集中分布在0cm～10cm的土层中;⑤3种群落的地上生物量与土壤含水量呈极显著正相关, 地下生物量受相对湿度影响较大,二者也呈极显著正相关。     

Engaging Students with Art-Based S-R-C (Sense of Belonging,Resistance, and Coalition Building) Strategies for Anti-Racism

In this article, we discuss our struggles and efforts to respond to Asian American and Pacific Islander (AAPI) hate crimes and anti-Asian racism, as well as explore ways to address the issues of anti-Asian racism, violence, myths, and stereotypes in the art classroom. We researched and learned from contemporary Asian American artists, attended anti-racism virtual talks, and examined various anti-racism pedagogical approaches. As an outcome of our research to confront anti-racism, we developed S-R-C strategies to engage students with art-based anti-racism, which include facilitating a sense of belonging (S), resisting anti-Asian racism (R), and coalescing with other minority groups and allies (C). These strategies were developed to fully embrace the equity, diversity, and inclusivity of AAPI sequentially and holistically. This article also reports how we use the S-R-C strategies to guide our pre-service art teachers to confront anti-Asian racism and advocate for anti-racism teaching practices.     

Doctoral students’ experiences of nondisclosure with their dissertation chair

We examined doctoral students’ experiences of nondisclosure with their dissertation chairs. Using a hermeneutic phenomenology design, we analyzed two individual interviews of 10 doctoral students. We identified the following three themes: (a) the professional dynamics in the relationship, (b) the interpersonal and cultural dynamics in the relationship, and (c) prioritization of completing the dissertation. Implications for doctoral students and dissertation chairs are discussed.     

Adolescents’ sleep and adjustment: Reciprocal effects

Reciprocal relations between sleep and adjustment were investigated. Participants included 246 adolescents (M = 15.80 years; 67.5% White, 32.5% Black/African American; 53% female, 47% male) at Time 1 (data collected 2012–2013), 227 at Time 2 (M = 16.78 years) and 215 at Time 3 (M = 17.70 years). Sleep–wake variables were measured with self-reports (sleepiness) and actigraphy (average sleep minutes and efficiency, variability in sleep minutes and efficiency). Adolescents reported on depression and anxiety symptoms, and parents reported on externalizing problems. Greater variability in sleep duration and efficiency as well as sleepiness predicted adjustment problems (range of R²: 36%–60%). Reciprocal relations were supported mostly for sleepiness (range of R²: 16%–32%). Results help understand bidirectional relations between sleep and adjustment.     

新疆高等职业教育文化体系建设的思考与探索

高等职业教育文化体系建设是新时期对高等职业院校内涵建设提出的新要求。高等职业院校通过人文精神的校园文化建设,提升师生对祖国发展的使命感和责任感;通过职业特色的文化体系建设,形成弘扬劳动光荣崇尚技能的职业氛围;通过地方特色的校园文化建设,引领区域公共文化事业的发展;通过学习型校园文化体系建设,形成务实民主、人尽其能、勤俭节约、注重效率的工作环境。     

抛锚式分层教学法在“概论”课教学中的应用

文章阐述了抛锚式分层教学法的内涵、特点和研究进程,介绍了抛锚式分层教学法在“概论”课教学中的应用,通过对运用效果的分析,提出抛锚式分层教学法方法在“概论”课教学中值得推广,其运用有待进一步研究和完善,同时指出抛锚式分层教学法对师生都有更高的要求。     

校企合作人才培养模式存在的问题及对策研究

校企合作日益成为职业教育研究和实践的热点,也是高职院校办学的重要路径,而加强校企合作人才培养模式,是其关键所在。本文就当前高职院校和企业合作人才培养模式存在的一些问题与解决对策展开探讨。     

新疆少数民族汉语教学评估体系构建研究

少数民族汉语教学是我国民族教育教学改革的重点,汉语教学评估体系也是教育体系不可或缺的组成部分。随着教学改革的不断深入,少数民族地区汉语教学评估体系也不断完善,但是,新疆少数民族汉语教学评估体系普遍存在指标不够细化、评估方法单一等问题。汉语教学评估体系的规范化、多元化仍有待加强。文章从少数民族地区汉语教学的角度出发,就汉语教学评估体系现状、问题进行了探讨,以期能为汉语教学发展完善提供参考依据。     

Child‐Care Subsidies and Child‐Care Choices Over Time

The evidence to date on the federal child‐care subsidy program's effect on preschool child‐care quality is mixed. However, an as‐yet untested outcome of subsidy receipt is subsequent child‐care choice. Specifically, it is possible that subsidy receipt in toddlerhood increases the likelihood of attending other publicly funded preschool programs—Head Start and public pre‐k—that provide the highest quality care available to low‐income families. Using data from the Early Childhood Longitudinal Study–Birth Cohort (n ≈ 2,100; approximately 2 years old), this study finds that subsidy receipt during toddlerhood predicts greater use of the other forms of publicly funded care in the preschool year, although only if the earlier subsidy is used in a center. These results highlight a previously unconsidered potential benefit of the subsidy program.