湖州市杂交晚粳“甬优538”机插高产栽培技术

"甬优538"是宁波市种子有限公司育成的籼粳杂交晚稻新品种(偏粳),在湖州市种植,表现出综合性状好,生育期适宜,株高适中,壮秆大穗、具有超高产潜力等特点,适宜在湖州市作单季稻种植。为促进该品种在湖州市的推广种值,分析了"甬优538"在湖州市机插种植的产量表现及特征特性,形成并总结出了机插高产栽培技术。     

自适应双向快速密集树避碰运动规划算法

针对采样运动规划算法效率低,尤其在处理高维空间和复杂障碍环境等问题时,严重依赖于所选采样参数和碰撞检测距离等,提出了一种自适应双向快速密集树（ABiRDT）避碰运动规划方法。首先,深入研究了ABiRDT算法的基础理论和实现方法,可适应调整碰撞检测距离参数和随机采样扩展步长;其次,重点研究了本算法所采用的c-空间加权均匀采样、最近邻位形查找和基于混合包围盒的并行离散碰撞检测等关键自适应策略;最后,通过三维可视化计算机仿真验证了本文提出算法的有效性。     

The Absurdity Art in Yossarian Survives

Joseph Heller, an American black humor novelist, is good at making use of various writing techniques to reveal the absurdity of the world and the living dilemma of people. His short story Yossarian Survives is a pretty example, which portrays an absurd picture of modern American society. Through some experimental techniques, it shows us the absurd nature of the world through the absurdity of its plot and characters.     

Online graduate students’ perceptions of best learning experiences

The purpose of this study is to examine the perceptions of online master’s students regarding their best learning experiences. The authors surveyed 86 graduate students concerning what helped them learn in the online environment. Results indicate that although graduate students learned using the same technological tools as undergraduates, they desired a deeper level of learning that requires more instructional forethought and planning. Student experiences were consistent with the constructivist theory, and implications for improving teaching based upon the constructivist theory are highlighted.     

非洲东部及南部雨水管网中的雨水回用实践(英文)

介绍了非洲东部和南部雨水管网系统中雨水回用的实践与经验,并介绍了在Sub-Saharan Africa开展的雨水回用工程实践情况,包括国家政策的调研、回用理念的构建、雨水系统的建设和回用技术的评估.雨水回用技术在非洲东南部地区被大力推广,并被普遍接受,应用于生活用水及农业用水的补充以及环境可持续发展建设的各个方面.截止目前,已有12个国家级的雨水回用机构建成,他们为雨水回用系统的建设提供整体规划和技术指导.政府和投资商也逐渐转变态度,为推进雨水回用技术在经济、制度和技术上提供了优惠政策.合理的土地与水体管理是雨水资源利用最大化的关键.除了政策和制度的协调外,还需要充足的预算支持来推动技术的广泛应用.     

论《百年孤独》的艺术手法

加西亚·马尔克斯的《百年孤独》是魔幻现实主义的经典之作,本文论述了作者如何从人物塑造、情节设计、印第安文化典故的发挥等方面来运用魔幻的创作手法,描绘布恩迪亚家族、马孔多镇、哥伦比亚乃至拉丁美洲的孤独精神,以及为摆脱孤独而进行的艰辛探索。探讨了如何以魔幻的艺术手法来发掘现实的本质特征,以达到深刻而内在地表现现实的目的。     

发声、共鸣与吐字:三种唱法的技术层面比较

美声、民族和通俗唱法是我国当前乐坛上齐驱并进的三种主要唱法,不仅社会影响较大,而且也是声乐学习者的主要学习唱法。在经历了自身的历史沿革和发展之后,这三种唱法已经成为具有各自鲜明特色的声乐艺术体系和演唱艺术方法体系。虽然关于三种唱法的艺术风格、审美感染力的研究已经相对较多,然而对于专业人员来说,在唱法的技术和技巧层面上对这三者有清晰而又透彻的理解与把握仍然非常重要,同时这三种唱法还是音乐教学研究和舞台演出的扎实基础。基于这种考虑,通过对美声、民族和通俗三种唱法的发声、共鸣、吐字等唱法的基本技巧的理论认知、实践阐释和比较研究,剖析三种唱法各自的强调要点以及由此而形成的声音形象特征,探讨三种唱法的共同规律和舞台演出的转化。     

行动导向的高职《汽车涂装技术》课程实施

阐述了行动导向教学模式的内涵,并以行动导向为指导对以《汽车涂装技术》学习领域课程进行了课程开发,在能力目标、情境开发、任务设置、理实一体化的过程考核、教学实施、教学手段几个方面进行探索,通过在教学上的实践,提高了学生的能力和技能,实现了对学生的有效培养。     

Aerobics and Library Instruction- An Unexpected Fit

ABSTRACT

It can be a real challenge to engage students in library instruction classes. The authors have drawn some inspiration from an unexpected place: the aerobics workout. Aerobics teaching techniques and perspectives can be readily adapted to the library instruction classroom with invigorating results.     

Is an integrative laboratory algorithm more effective in detecting alpha-1-antitrypsin deficiency in patients with premature chronic obstructive pulmonary disease than AAT concentration based screening approach?

Introduction:

Alpha-1-antitrypsin deficiency (AATD), genetic risk factor for premature chronic obstructive pulmonary disease (COPD), often remains undetected. The aim of our study was to analyse the effectiveness of an integrative laboratory algorithm for AATD detection in patients diagnosed with COPD by the age of 45 years, in comparison with the screening approach based on AAT concentration measurement alone.

Subjects and methods:

50 unrelated patients (28 males/22 females, age 52 (24–75 years) diagnosed with COPD before the age of 45 years were enrolled. Immunonephelometric assay for alpha-1-antitrypsin (AAT) and PCR-reverse hybridization for Z and S allele were first-line, and isoelectric focusing and DNA sequencing (ABI Prism BigDye) were reflex tests.

Results:

AATD associated genotypes were detected in 7 patients (5 ZZ, 1 ZM_malton, 1 ZQ0_amersfoort), 10 were heterozygous carriers (8 MZ and 2 MS genotypes) and 33 were without AATD (MM genotype). Carriers and patients without AATD had comparable AAT concentrations (P = 0.125). In majority of participants (48) first line tests were sufficient to analyze AATD presence. In two remaining cases reflex tests identified rare alleles, M_malton and Q0_amersfoort, the later one being reported for the first time in Serbian population. Detection rate did not differ between algorithm and screening both for AATD (P = 0.500) and carriers (P = 0.063).

Conclusion:

There is a high prevalence of AATD affected subjects and carriers in a group of patients with premature COPD. The use of integrative laboratory algorithm does not improve the effectiveness of AATD detection in comparison with the screening based on AAT concentration alone.