篇一：英文版生物涡虫再生实验报告模版生物系实验报告姓名班级学号实验日期 2014科目普生实验实验名称 regeneration in planarian 合作者指导教师成绩 lab 8: regeneration in planarianintroduction:intestine. it usually is 3 to 15 mm long, but it can also grow to more than 30 cm. it moves by swimming like slugs, tending to seek food which includes protozoans, tiny snails and worms at night as carnivorous creature.planarians are hermaphrodites and their reproductive organs start to develop in early autumn, but they cannot inbreed. most of these individuals are able to fully develop, while some may be abnormal. and because of planarians’ remarkable ability to regenerate lost parts, they are often used in biology experiments.in this experiment, we will have an opportunity to observe and recognize some of the basic features of planarians. we will be taught to use scientific approach to hypothesize how planarians respond to fragmentation. the planarian will be worked as model.materials and methods:materials:stereoscope (nikon), hand lenses, petri dish with frozen water, knife, tweezers, droppers, filter papers, planarians.methods:part ⅰ: observe the planarian.⑴ use hand lenses to have a close observation on planarian, and record what are seen in table t-1. ⑵ identify the following features and make notes accordingly: color, shape, movement, length,symmetry, visible body parts, responses to light, food and flipping the animal upside down. ⑶ summarize what we have found out, and try to find connections between different aspects ofplanarian’s biology.part ⅱ: exploring regeneration in planarians by cutting a planarian. ⑴ label a petri dish with mark pen.⑵ place a planarian on wet filter paper placed on top of bed of frozen water in a petri dish, so that it can be relatively still.⑶ bisect the planarian into two pieces, like ⑷ use a dropper to dislodge the planarian off the filter paper and into the labeled petri dish. fillthe petri dish about half full with water.provided by teachers.⑴ cut a planarian how we want to, place the parts into the labeled petri dish, fill it about halffull with water.⑵ observe at different time points (2 hours, 1 day, 2 days, 3 days, 7days), and make notes aboutthe changes in color and the progression of the regenerating parts in table t-2.results：part ⅰ:the shape of planarian benefits to its living in water, such as a spade-shaped head. and when feed it meat,it will approach to the objective slowly; then if nothing threaten it, it will reach out its mouthpart to the food.when it moves, it will try its best to avoid light source.part ⅱ: (based on the series of figure 2)after being cut to two parts, they can both still moves in petri dish. relatively, the part of head is more active than the part of tail. the frozen water does make the planarian remain relatively still, so that it is easier to cut. [the development of these two parts will be given in table t-2].part ⅲ:in the teacher’s samples are trisection of planarian, the time is 4.30, 5.4, 5.5, 5.6, 5.7 respectively, when they are observed on 5.7.besides the sample from part ⅱ, in our samples, the planarian is cut from head to tail (bisect), liketable t-2 ( as shown in the series of figure 3)discussions:question 1: why can planarian regenerate but we cannot? why do you think some animals can regeneratebut others cannot?the more highly the creature differentiates, the harder it tends to be able to regenerate. for example, high form of life’s somatic cells are almost all highly differentiated, there are hardly other cells to make up the lost part of the organ. question 2: is a planarian immortal? does it age?from the view of this specie, it is immortal. but it can use both sexual and asexual reproduction to reproduce, when it use sexual way, it has a growth process, so it is not immortal and it ages.question 3: how might planarian be useful for medical research?it may help to study the mechanism of immortal, which may help biologists to invent themedicine which makes humankind never be old.references:contribution statements:*** is responsible for the observation of planarian. the cut of materials belongs to liu *** and ***.figures: [ are all 0.8×10 ]figure 1-1figure 1-2figure 2-1 petri dish with two planarians. 2 planarians are eating. after cutting as part ⅱ.figure 2-2figure 3-1 figure 3-2 the tail part of partⅱ, active. the middle part of teacher’s s sample. the part with more organs.( when 5.5) (rip cutting)figure 3-3 figure 2-3 figure 2-4 the part with few organs the generation of tail part the generation of head part in(rip cutting) in part ⅱ. part ⅱ.figure 3-4 figure 3-5 figure 3-6the generation of the part with the generation of the partthe head part of teacher’s sample.more organs (rip cutting)with little organs (rip cutting) (when 4.30)篇二：三角涡虫_创新助手_主题报告_2014-07-14创新助手报告——主题分析报告创新助手平台提供北京万方软件股份有限公司2014-07-14报告目录报告核心要素.............................................................................. (i)一、主题简介.............................................................................. .. (1)二、主题相关科研产出总体分析 (1)2.1 文献总体产出统计 ............................................................................. (1)2.2 学术关注趋势分析 ............................................................................. (2)三、主题相关科技论文产出分析 (2)3.1 中文期刊论文 ............................................................................. .. (2)3.1.1 近十年中文期刊论文分布列表 (2)3.1.2 中文期刊论文增长趋势 (3)3.1.3 发文较多期刊 (4)3.1.4 发文较多的机构 (4)3.1.5 发文较多的人物 (5)3.1.6核心期刊分布数量对比 (6)3.1.7最近相关中文期刊论文 (6)3.1.8被引较多的相关期刊论文 (7)3.2 学位论文 ............................................................................. . (9)3.2.1 近十年学位论文年代分布列表 (9)3.2.2 学位论文增长趋势 (10)3.2.3 硕博学位论文数量对比 (10)3.2.4 发文较多的机构 (11)3.2.5 发文较多的人物 (11)3.3 中文会议论文 ............................................................................. (13)3.3.1 近十年中文会议论文年代分布列表 (13)3.3.2 中文会议论文增长趋势 (13)3.3.3 中文会议论文主办单位分布 (14)3.3.4 发文较多的机构 (14)3.3.5发文较多的人物 (14)3.3.6最近相关中文会议论文 (15)四、主题相关专利、科技成果及基金产出状况 (16)4.1 专利 ............................................................................. . (16)4.1.1 近十年专利情况 (16)4.1.2 专利类型分布...........................................................................174.1.3 获得专利较多的机构 ............................................................... 174.1.4 专利较多的人物 .. (17)4.1.5 最新专利 ............................................................................. (18)4.1.6 失效专利 ............................................................................. (18)4.2 科技成果 ............................................................................. .. (18)4.2.1 近十年科技成果情况 (18)4.2.2 科技成果地区分布 (19)4.2.3 获得科技成果较多的机构 (19)4.2.4 获得科技成果较多的人物 (19)4.2.5 最新科技成果...........................................................................194.3 基金 ............................................................................. . (20)4.3.1 近十年基金情况 (20)4.3.2基金类型分布............................................................................214.3.3 获得基金较多的机构 (21)4.3.4 获得基金支持较多的人物 (22)4.3.5 最新获得基金支持的期刊论文 ...............................................22五、主题学科渗透性.............................................................................. (24)六、主题共现词.............................................................................. .. (24)七、主题研究领域创新实体..............................................................................257.1 相关专家(排名不分先后) (25)附录一法律声明.............................................................................. (25)附录二联系方式.............................................................................. .................. 26图表目录图表 1 文献总体产出统计表 (1)图表 2 文献总体产出饼图 ............................................................................. .. (1)图表 3 学术关注趋势图 ............................................................................. (2)图表 4 近十年中文期刊论文分布列表 (2)图表 5 近十年中文期刊论文增长趋势曲线图 (3)图表 6 发文较多期刊 ............................................................................. . (4)图表7 发表中文期刊论文较多的机构名称及数量 (4)图表8 发表中文期刊论文较多的人物名称及数量 (5)图表9 近十年学位论文年代分布列表 (9)图表10 近十年学位论文增长趋势曲线图 (10)图表11 硕博学位论文数量对比饼状图 (10)图表12 发表学位论文较多的机构名称和数量 (11)图表13 发表学位论文较多的人物名称和数量 (11)图表14 近十年中文会议论文年代分布列表 (13)图表15 近十年中文会议论文增长趋势曲线图 (13)图表16 中文会议论文主办单位分布图 (14)图表17 发表中文会议论文较多的机构名称和数量 (14)图表18 发表中文会议论文较多的人物名称和数量 (14)图表19 近十年专利情况分布图 (16)图表20 专利类型分布饼状图 (17)图表21 获得专利较多的机构名称和数量 (17)图表22 获得专利较多的人物名称和数量 (17)图表23 近十年科技成果情况曲线图 (18)图表24 科技成果地区分布图 (19)图表25 获得科技成果较多的机构名称和数量 (19)图表26 获得科技成果较多的人物名称和数量 (19)图表27 近十年基金情况统计图 (20)图表28 基金类型分布图 ............................................................................. .. (21)图表29 主题学科渗透性 ............................................................................. .. (24)图表30 主题共现词词频 ............................................................................. ..... 24报告核心要素本报告是围绕以下主题，利用海量数据库和数据挖掘、聚类分析和可视化技术，从文献总体产出、学术关注趋势、相关文献分布与增长情况、权威机构和人物排名等方面得出的综合分析结果。