共查询到20条相似文献,搜索用时 31 毫秒
1.
Charles de Brantes 《Research in Science Education》1994,24(1):385-388
Supplement
The book of genesis and the chronicles of the people of ASERA 相似文献2.
Hong Lin 《TechTrends》2009,53(6):20-21
Professional Ethics
On the Responsible Use of Communication Media for Learning 相似文献3.
《Journal of Science Teacher Education》2000,11(2):91-91
Editorial Commentary
Letter from the Editors 相似文献4.
Sara Lippincott 《Resonance》2011,16(9):881-885
Face to Face
Excerpt of the interview with Mathew Sands Mathew Sands talks to Finn Aaserud 相似文献5.
Mary Ellen Cooper 《TechTrends》2009,53(6):8-11
Connellys’ Classroom Cutaway
Read the Book, See the Movie, Part Three 相似文献6.
《Journal of Science Teacher Education》2001,12(2):83-83
Editorial Introduction
Letter from the Editors 相似文献7.
Mary Goodwin 《TechTrends》2009,53(5):11-12
Connellys’ Classroom Cutaway
Read the Book, See the Movie, Part Two 相似文献8.
Min Kyu Kim 《TechTrends》2009,53(6):12
ect Cornerstone
ECT Internship: Experiencing Privilege, Opportunity, and the Spirit of Giving 相似文献9.
Paul Agron Leo Bachmair Frank Nielsen 《International journal for the advancement of counseling》1992,15(2):91-101
Articles
Psychosocial aspects in the German unification process 相似文献10.
Diti Chatterjee Gloria González-Rivera 《The Journal of Agricultural Education and Extension》2013,19(5):443-467
ABSTRACT
Purpose
This paper is concerned with the impact of the University of California Cooperative Extension (UCCE) on regional productivity in California agriculture. UCCE is responsible for agricultural research and development (R&D), and dissemination of agricultural know-how in the state. 相似文献11.
Ke-xin Song Shu Liu Ming-zi Zhang Wei-zhong Liang Hao Liu Xin-hang Dong You-bin Wang Xiao-jun Wang 《Journal of Zhejiang University. Science. B》2018,19(11):853-862
Objective
Keloids are exuberant cutaneous scars that form due to abnormal growth of fibrous tissue following an injury. The primary aim of this study was to assess the efficacy and mechanism of hyperbaric oxygen therapy (HBOT) to reduce the keloid recurrence rate after surgical excision and radiotherapy.Methods
(1) A total of 240 patients were randomly divided into two groups. Patients in the HBOT group (O group) received HBOT after surgical excision and radiotherapy. Patients in the other group were treated with only surgical excision and radiotherapy (K group). (2) Scar tissue from recurrent patients was collected after a second operation. Hematoxylin and eosin (H&E) staining was used to observe keloid morphology. Certain inflammatory factors (interleukin-6 (IL-6), hypoxia-inducible factor-1α (HIF-1α), tumor necrosis factor-α (TNF-α), nuclear factor κB (NF-κB), and vascular endothelial growth factor (VEGF)) were measured using immunohistochemical staining.Results
(1) The recurrence rate of the O group (5.97%) was significantly lower than that of the K group (14.15%), P<0.05. Moreover, patients in the O group reported greater satisfaction than those in the K group (P<0.05). (2) Compared with the recurrent scar tissue of the K group, the expression levels of the inflammatory factors were lower in the recurrent scar tissue of the O group.Conclusions
Adjunctive HBOT effectively reduces the keloid recurrence rate after surgical excision and radiotherapy by improving the oxygen level of the tissue and alleviating the inflammatory process.12.
Xiao-fen He Jun-jun Wei Sheng-yun Shou Jian-qiao Fang Yong-liang Jiang 《Journal of Zhejiang University. Science. B》2017,18(3):239-248
Objective
To investigate the analgesic effects of electroacupuncture (EA) at 2 and 100 Hz on type 2 diabetic neuropathic pain (DNP) and on the expressions of the P2X3 receptor and calcitonin gene-related peptide (CGRP) in the dorsal root ganglion (DRG).Methods
Rat type 2 DNP was induced by a high calorie and high sugar diet fed for 7 weeks, plus a single intraperitoneal injection of streptozotocin (STZ) after 5 weeks. EA at 2 and 100 Hz was carried out once every day after 7 weeks for 7 consecutive days. Body weight, serum fasting insulin (FINS), fasting blood glucose (FBG), insulin sensitivity index (ISI), and paw withdrawal latency (PWL) were measured. The expressions of L4–L6 DRG P2X3 receptors and CGRP were assessed by immunofluorescence.Results
Type 2 DNP was successfully induced as shown by the increased body weight, FINS, and FBG, as well as the reduced ISI and PWL. Expressions of P2X3 receptors and CGRP in L4–L6 DRGs increased. EA at both 2 and 100 Hz relieved type 2 DNP, but the analgesic effect of EA was stronger at 2 Hz. P2X3 receptor expression decreased in L4–L6 DRGs following EA at 2 Hz and in L5 and L6 DRGs following EA at 100 Hz. EA at both 2 and 100 Hz down-regulated CGRP overexpression in L4–L6 DRGs.Conclusions
These findings indicate that EA at 2 Hz is a good option for the management of type 2 DNP. The EA effect may be related to its down-regulation of the overexpressions of the DRG P2X3 receptors and CGRP in this condition.13.
Viewpoints and Controversies
On the World Bank's education report: Replies to Peter Williams 相似文献14.
Katie Goeman Luc De Grez Eline van den Muijsenberg Jan Elen 《Educational research; a review for teachers and all concerned with progress in education》2020,62(3):340-356
ABSTRACT
Background
While open-cohort blended education programmes allow for accessible and flexible study trajectories, they may present social challenges to learners. Social presence is a possible a way of enhancing adult learners’ success. It can lead to an increased perception of community, which may result in lower rates of dropping out. 相似文献15.
Xiaomin Deng Honglin Chen Jingwen Xie Juanjuan Chen 《Research in Science & Technological Education》2020,38(3):308-328
ABSTRACT
Background
Inquiry-based learning has been widely adopted in educational practice especially in science education. Scaffolding plays an important role in fostering learning in sophisticated inquiry. Meanwhile, it is important not to undermine the open-endedness of inquiry activities and the nature of student-centred learning. 相似文献16.
Heng Li Xiao-fei Shen Xin-e Zhou Yan-e Shi Lu-xia Deng Yi Ma Xiao-ying Wang Jing-yu Li Ning Huang 《Journal of Zhejiang University. Science. B》2017,18(5):410-420
Objective
To investigate the antibacterial mechanism of high-mobility group nucleosomal-binding domain 2 (HMGN2) on Escherichia coli K12, focusing on the antibacterial and antibiofilm formation effects. Its chemotactic activity on human neutrophils was also investigated.Methods
Human tissue-derived HMGN2 (tHMGN2) was extracted from fresh uterus fiber cystadenoma and purified by HP1100 reversed-phase high-performance liquid chromatography (RP-HPLC). Recombinant human HMGN2 (rHMGN2) was generated in E. coli DE3 carrying PET-32ac(+)- HMGN2. Antibacterial activity of HMGN2 was determined using an agarose diffusion assay and minimum inhibitory concentration (MIC) of HMGN2 was determined by the microdilution broth method. Bacterial membrane permeability assay and DNA binding assay were performed. The antibiofilm effect of HMGN2 was investigated using a crystal violet assay and electron microscopy scanning. The activating effect and chemotactic activity of HMGN2 on neutrophils were determined using a nitroblue tetrazolium (NBT) reduction assay and Transwell chamber cell migration assay, respectively.Results
HMGN2 showed a relatively high potency against Gram-negative bacteria E. coli and the MIC of HMGN2 was 16.25 μg/ml. Elevated bacterial membrane permeability was observed in HMGN2-treated E. coli K12. HMGN2 could also bind the bacterial plasmid and genomic DNA in a dose-dependent manner. The antibiofilm effect of HMGN2 on E. coli K12 was confirmed by crystal violet staining and scanning electron microscopy. However, the activating effects and chemotactic effects of HMGN2 on human neutrophils were not observed.Conclusions
As an antimicrobial peptide (AMP), HMGN2 possessed a good capacity for antibacterial and antibiofilm activities on E. coli K12. This capacity might be associated with disruption of the bacterial membrane and combination of DNA, which might affect the growth and viability of E. coli.17.
18.
Editorial
Exploring the global significance of Chinese education: A new start for Frontiers of Education in China 相似文献19.
Objective
This study reports a case-series study of 21 women from the United Kingdom convicted of the murder or manslaughter of their child (maternal filicide: MF). These cases were reviewed using data provided from police forces and from publicly available resources.Methods
Content and thematic analysis and multidimensional scaling techniques were used to analyse the relationships between the variables present in the commission of the crimes.Results
Mothers who killed their children could be categorised as emotionally driven and in despair at their situation, or rejecting their children due to perceiving them as a threat. Mothers who killed their babies (neonaticides) appeared to form two distinct subgroups: reluctant and detached neonaticidal offenders.Conclusion
These findings offer an insight into the factors that may be of relevance in understanding how a mother may come to commit MF, and are interpreted in terms of disturbed attachment processes. 相似文献20.
Ri-sheng Que Cheng Lin Guo-ping Ding Zheng-rong Wu Li-ping Cao 《Journal of Zhejiang University. Science. B》2016,17(5):352-360