盐胁迫对红麻种子萌发及幼苗生长的影响     

刘明久  李丁涛 《河南职业技术师范学院学报》2011,(4):9-11

研究了不同浓度的钠盐（Na2SO4和Na2CO3）胁迫对红麻种子萌发和幼苗生长的影响.结果表明：不同浓度盐胁迫对红麻种子的发芽指标和活力指数均有一定抑制作用,随浓度的增加抑制作用越强.浓度10~50 mmol/L的Na2SO4胁迫下,红麻种子的发芽势、发芽指数与对照没有显著差异,但活力指数显著低于对照,而当Na2SO4浓度为100 mmol/L时种子的发芽势、发芽指数与对照存在显著差异,Na2SO4浓度为200 mmol/L时种子不能萌发;Na2CO3浓度≥50 mmol/L时,红麻种子不能萌发.相同浓度下,Na2CO3比Na2SO4对红麻种子萌发的抑制作用更明显.  相似文献   

NaCl胁迫对不同番茄品种幼苗及果实的影响     

鲍维巨  方巍  张琪晓  吴菊  杨飞 《河南职业技术师范学院学报》2011,(4):12-14

研究了NaCl胁迫对5个不同番茄品种的幼苗生长、果实可溶性糖含量及产量的影响.结果表明,盐胁迫抑制了番茄幼苗植株的生长,降低了幼苗的单株鲜重,减少了果实产量,但可以提高果实可溶性糖含量.同一盐胁迫条件下,不同番茄品种性状存在显著差异.  相似文献   

EMDR治疗的初期——基础、诊断与治疗计划（上）     

Arne Hofmann德  盛晓春译 《成都师专学报》2011,(5):7-14

本文介绍了精神创伤的EMDR（眼动脱敏与再加工）治疗过程中的八个步骤,以及每个步骤中值得注意的问题。  相似文献   

Mothers’ and Fathers’ Roles in Caring for an Adult Child with an Intellectual Disability     

Michelle Rowbotham  Monica Cuskelly 《International Journal of Disability, Development & Education》2011,58(3):223-240

To date, there have been few studies of mothers’ and fathers’ roles in caring for their adult children with intellectual disabilities. The present study investigated the care-giving roles of mother and father couples caring for their adult offspring with an intellectual disability, their psychological health, and the demands and satisfaction of their care-giving roles. Twelve Anglo-Australian middle-aged mother and father couples with an adult child with intellectual disability (mean age?=?24 years) participated in semi-structured interviews about their care-giving roles and completed a series of questionnaires pertaining to care-giving difficulties and satisfaction, hassles and uplifts, and general health. Findings indicated that an extremely high proportion of both mothers and fathers were in the clinical range for social dysfunction, anxiety/insomnia, and somatic complaints, although levels of depression were relatively low. The present study found that mothers undertake more daily care-giving tasks than fathers, but that the range of tasks is similar. Mothers also reported significantly more care-giving difficulties and satisfaction than fathers. Associations between measures differed somewhat for the two parent groups, indicating the need for further exploration of both mothers’ and fathers’ experiences.  相似文献   

Pain, suffering, and trauma in labor and prevention of subsequent posttraumatic stress disorder     

Simkin P 《The Journal of perinatal education》2011,20(3):166-176

In this column, Kimmelin Hull, community manager of Science & Sensibility, Lamaze International's research blog, reprints and discusses a recent blog post series by acclaimed writer, lecturer, doula, and normal birth advocate Penny Simkin. Examined here is the fruitful dialog that ensued-including testimonies from blog readers about their own experiences with traumatic birth and subsequent posttraumatic stress disorder. Hull further highlights the impact traumatic birth has not only on the birthing woman but also on the labor team-including doulas and childbirth educators-and the implied need for debriefing processes for birth workers. Succinct tools for assessing a laboring woman's experience of pain versus suffering are offered by Simkin, along with Hull's added suggestions for application during the labor and birth process.  相似文献   

中学教师职业压力调查分析   总被引：5，自引：0，他引：5  

周晓晔  秦巍 《辽宁师范大学学报(社会科学版)》2004,27(3):69-71

教育学、心理学、工效学、医学等多学科的研究均发现职业压力已成为一种严重影响人的身心健康和工作、生活质量的社会流行病。教师，尤其是中学教师，由于其职业的特殊性，压力过大或过于持久，不仅会严重损害他们的身心健康，还会影响到他们的学生——青少年的健康成长。这里运用自编的中学教师职业压力问卷，对428名城市普通中学教师的职业压力现状进行了调查研究和分析。  相似文献   

Word stress production in three‐year‐old children at risk of dyslexia     

Elise De Bree  Frank Wijnen  Wim Zonneveld 《Journal of Research in Reading》2006,29(3):304-317

We investigated Dutch word stress acquisition in 3‐year‐old children at risk of dyslexia (children with at least one parent or older sibling with reading difficulties) and normally developing children, in order to shed light on language acquisition delays in children at risk of dyslexia, as well as to investigate further phonological deficits in dyslexia. The children had to repeat non‐words with stress patterns varying in regularity. Both the at‐risk and control children performed better on imitation of regular stress targets and worse on irregular and prohibited stress patterns. However, the at‐risk children showed more difficulty imitating irregular and prohibited patterns, and had lower percentages phonemes correct than the control group. The results can be interpreted as a delay in word stress acquisition in the at‐risk group. The findings thus point towards a phonological deficit early in language development.  相似文献   

回转薄壳薄膜应力的材料力学解答及其弹性理论的验证     

韩柏 《扬州职业大学学报》2004,8(1):41-43

根据无力矩理论采用材料力学的截面法对三个实例中回转薄壁壳体的经向薄膜应力作了分析和求解，并用弹性理论的计算结果进行了验证，从而说明回转薄壳薄膜应力材料力学解答的准确性。  相似文献   

浅谈混凝土的施工温度与裂缝   总被引：1，自引：0，他引：1  

李万雄 《洛阳工业高等专科学校学报》2003,13(3):32-33

分析了混凝土裂缝的原因，温度应力是出现温度裂缝不可忽视的因素．认真分析温度变化的各个阶段，提出了防治措施，对混凝土的早期养护提出具体要求．  相似文献   

CFG桩复合地基承载特性分析     

侯新宇 《江苏广播电视大学学报》2003,14(6):41-43

CFG桩复合地基具有变形模量高、承载力提高幅度大等特点，设计时可以通过改变桩体材料配比，改变桩体直径、桩长、桩距、垫层厚度等设计参数，使承载力提高以达到设计要求。其中，褥垫层有协调桩和桩间土变形的能力，使得桩和桩间土始终参与工作，一般工程中取10～30cm较为合理。  相似文献