Abstract
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abstract在java中用法(一)Abstract在Java中在Java中,abstract是一个关键字,用于定义抽象类和抽象方法。
抽象类是一种特殊的类,不能被实例化,只能用作其他类的基类。
抽象方法是一种没有具体实现的方法,只有方法声明,没有方法体。
下面将详细讲解abstract在Java中的用法。
抽象类抽象类是一种用abstract关键字修饰的类。
它不能被实例化,只能作为父类被继承。
抽象类的主要作用是定义子类需要实现的一组方法,子类必须实现这些方法才能被实例化。
定义抽象类的语法如下:abstract class AbstractClass {// 抽象方法public abstract void abstractMethod();// 普通方法public void normalMethod() {// 方法实现}}抽象类可以包含抽象方法和普通方法。
抽象方法用abstract关键字修饰,没有方法体;普通方法有方法体。
抽象类可以包含普通成员变量和静态成员变量,也可以包含普通方法和静态方法。
但是不能创建抽象类的实例。
抽象方法抽象方法是一种没有具体实现的方法,只有方法声明。
抽象方法用abstract关键字修饰,没有方法体。
抽象方法必须在抽象类中声明,子类必须实现这些抽象方法才能被实例化。
定义抽象方法的语法如下:abstract void abstractMethod();抽象方法也可以包含参数和返回值,用于定义子类必须实现的方法签名。
子类继承抽象类后,必须实现抽象方法,否则子类也必须声明为抽象类。
继承抽象类子类继承抽象类后,必须实现抽象类中的所有抽象方法才能被实例化。
子类可以通过覆盖抽象方法来实现具体的功能。
如果子类不想实现某个抽象方法,那么子类也必须声明为抽象类。
继承抽象类的语法如下:class ConcreteClass extends AbstractClass {// 实现抽象方法public void abstractMethod() {// 方法实现}// 覆盖普通方法public void normalMethod() {// 方法实现}}注意,如果一个类继承了抽象类,但没有实现抽象方法,则该类必须声明为抽象类。
文摘要求对于科技期刊的文章,论文的 abstract 主要由三部分组成,即:研究的问题、过程和方法、结果。
文摘只有写得正确,写的好,才能起到帮助读者了解原文的作用。
因此必须对文献进行认真的主题分析, 找出文献的主题概念, 正确地组织好这些主题内容,简明准确完整地写出文摘来。
文摘长度一般不超过 150 words 。
少数情况下允许例外,视原始文献而定。
在不遗漏主题概念的前提下,文摘应尽量简洁。
(一).缩短文摘方法:1.取消不必要的字句:如 ”t is reported here ”、 “new ”、 “ mainly ” 也尽量不要。
2. 对物理单位及一些通用词可以适当进行简化;3. 取消或减少背景信息( Background Information );4. 不说无用的话,如“本文所谈的有关研究工作是对过去老工艺的一个极大的改进”, “本工作首次实现了 …” “经检索尚未发现与本文类似的文献”等词句切不可进入文摘;5. 作者在文献中谈及的未来计划不纳入文摘;6. 文摘第一句应避免与题目(Title )重复。
7. 尽量简化一些措辞和重复的单元,如:(二).文体风格 1. 文摘叙述要完整,清楚,简明;2. 尽量用短句子并避免句形单调;3. 用过去时态叙述作者工作,用现在时态叙述作者结论;如 “The structure of dislocation cores in GaP was investigated by weak-beam electron microscopy. Thedislocations are dissociated into two Shokley partials with separations of 80 edge and screw casesrespectively. The results show that... __________________________________ ”可直接用名词或名词短语作定语的情况下,要少用 of 句型。
如何写好SCI论文投稿中的Abstract Abstract是SCI论文投稿中不可或缺的一部分。
它通常作为论文的摘要,摘要的质量很大程度上决定了论文被接受的可能性。
因此,如何写好Abstract是每位研究者必须掌握的技能之一。
2023年,Abstract的写作依然是一项重要的任务。
面对越来越激烈的学术竞争,研究者需要通过Abstract来吸引读者的关注并明确表达自己的研究意义和成果。
下面将介绍一些具体的写Abstract的技巧和注意事项,帮助研究者撰写高质量的Abstract。
首先,Abstract的内容应该准确、简洁、具体。
为了达到这个目的,研究者应该遵循以下几个基本原则:1. 提炼核心内容Abstract不是论文的简单概述,而是针对论文的研究问题、方法和成果进行提炼和总结。
因此,研究者应该首先确定论文的核心问题和贡献,然后将其简洁明了地表达在Abstract中。
2. 使用适当的语言和术语研究者应该使用准确、专业的术语和语言来描述论文的问题和成果。
同时,也要注意使用简洁、易懂的语言,特别是在解释论文的复杂概念和模型时,以便读者能够快速理解。
3. 强调结果和贡献在Abstract中,研究者应该突出论文的贡献和创新点,让读者能够明确地看到论文的价值和意义,从而增加论文的吸引力和可读性。
除了上述基本原则,还有一些细节需要研究者注意,以确保Abstract的质量和可读性。
下面列举了一些具体的技巧和注意事项:1. 遵循SCI期刊的写作规范Abstract的格式和内容要符合SCI期刊的要求,这包括使用适当的字体、字号、行间距、段间距,以及指定Abstract的篇幅等。
研究者应该仔细阅读SCI期刊的投稿说明,确保自己的Abstract符合要求。
2. 遵循逻辑顺序和结构研究者应该遵循逻辑顺序和结构来组织Abstract的内容。
通常来说,Abstract应该包括论文的研究问题、研究方法、主要结果、贡献和意义等。
Java abstract方法一、什么是abstract方法在Java中,abstract关键字用来声明一个抽象方法。
抽象方法是一种在父类中声明但没有具体实现的方法。
抽象方法的存在意味着这个方法在子类中必须被重写。
二、abstract方法的语法抽象方法的语法如下:访问修饰符abstract返回类型方法名(参数列表);•访问修饰符:可以为public,protected或者默认的访问修饰符。
•返回类型:指定方法返回的数据类型,可以是基本数据类型或者对象类型。
•方法名:方法的名称,根据命名规范进行命名。
•参数列表:方法的参数,可以有零个或多个参数。
三、为什么使用abstract方法抽象方法的存在使得父类能够定义一些通用的方法,而具体的实现则交给子类来完成。
通过使用抽象方法,可以实现多态性,提高代码的灵活性和可维护性。
抽象方法的定义是为了提供一种规范或者约束,要求所有的子类都要对该方法进行实现。
这样可以确保在子类中具有一致的方法行为,同时又能根据具体的需求进行个性化的实现。
四、抽象类和抽象方法的关系抽象方法必须定义在抽象类中,而抽象类不一定要有抽象方法。
一个类如果含有抽象方法,那么这个类必须被声明为抽象类。
抽象类和抽象方法的关系可以用以下几点总结: 1. 抽象类可以包含普通方法和抽象方法。
2. 抽象方法必须在抽象类中声明。
3. 抽象类不能被实例化,只能被继承。
4. 如果一个类继承了抽象类,那么它必须实现父类中的所有抽象方法,除非它自己也被声明为抽象类。
五、使用abstract方法使用abstract方法需要遵循以下步骤:1.在父类中声明抽象方法,使用abstract关键字修饰,不提供具体的实现。
2.子类必须继承父类,并实现父类中的抽象方法。
3.如果子类也被声明为抽象类,那么可以选择实现或者继续声明父类中的抽象方法。
下面是一个示例,展示如何使用abstract方法:// 抽象类abstract class Animal {// 抽象方法public abstract void makeSound();}// 子类class Cat extends Animal {// 实现抽象方法public void makeSound() {System.out.println("喵喵喵");}}// 子类class Dog extends Animal {// 实现抽象方法public void makeSound() {System.out.println("汪汪汪");}}// 测试代码public class Main {public static void main(String[] args) {Animal cat = new Cat();Animal dog = new Dog();cat.makeSound(); // 输出:喵喵喵dog.makeSound(); // 输出:汪汪汪}}六、注意事项在使用abstract方法时,需要注意以下几点:1.抽象方法不能在普通类中声明,只能在抽象类中声明。
摘要(Abstract)摘要(Abstract) 也成为内容提要,通常在学士论文中都必须附有摘要,其位置应放在论文的正文之前,对整个论文内容的概述。
无论对专业读者还是对非专业读者而言,摘要都是一个非常重要的文件。
摘要如果和论文一起发表,则被称为一次性出版物摘要,主要用于帮助读者评价文章内容及其潜在作用,使读者不必阅读全文就可以了解论文的内容。
除此之外,摘要也可以被单独收入文摘机构出版的摘要期刊如:生物学文摘(Biological Abstract)、化学文摘(Chemical Abstract)等、称为二次性出版物摘要。
此类脱离论文独立成篇的摘要主要用于方便读者检索文献、收集信息,帮助研究者寻找新的研究领域。
一.摘要的定义摘要的英文术语:有两个词汇,一个是abstract, 一个是summary.根据美国国家标准学会(American National Standard Institute)于1971年通过并颁布的《美国国家文摘写作标准》(American National Standard for Writing Abstracts)规定,Abstract 不应与summary 混同。
Abstract 对一篇论文的主要内容以精炼的文字进行高度概括,使读者不必阅读全文即可了解论文内容,或者让读者对即将阅读的文章有思想准备,或者让读者判断是否有通读全文的必要。
文中只对论文信息进行浓缩,而不加主观评论或解释,可以脱离原文而独立成篇。
字数通常在100~150个词左右,更确切地说,约为原文长度的1% ~ 5%(有的杂志规定摘要平均为全文的3% ~ 5%)。
现在越来越多的用法是abstract. 尤其是放在索引资料中一律要用abstract 这个术语,在论文的题目下也通常要用这个词。
Summary (概要) 与abstract 无明显差别。
严格地说,summary 一般附在论文的后面,对论文的主要结论和成果进行再叙述。
4个步骤教你如何写好abstract部分A b s t r a c t,就是对英文论文的一个简短总结,目的是为了告诉读者论文研究的是什么课题,以此来吸引读者。
一个好的a b s t r a c t,对英文论文的作用是非常大的,是论文的核心部分,所以一定得写好。
下面就给大家讲解一下如何写好a b s t r a c t部分。
1.无论任何学科,a b s t rac t需要包括以下几个重要组成部分和重要元素1)动机或问题的陈述:为什么我们对这个研究问题这么关心?你的研究针对的是实践性的,科学性的,理论性的还是艺术性的?有些a b s t r a c t 写作的时候,在写作动机之前要简要介绍相关的背景信息。
2)措施/流程/解决方法以及调查范围:为了得到相关的结果,你做了什么?3)结果/发现/产品:在上述的调查研究完成后,你学会了什么?发现了什么?创造了什么?4)结论/影响:你得出的哪些结论会产生更大的影响?然而,需要注意的是,根据不同的学科,要注意相关的可变性因素。
2.a b s t rac t中的语法特点和要求1)注意到细微的变化在陈述主要目标和调查范围的时候,多采用陈述性语言。
2)采用合适的方法描述方法的时候多使用过去时态。
要注意时态的一致性。
如果有必要,要按照时间的顺序进行排列。
3)注意结果的呈现方式只需要呈现结果即可。
以过去时态呈现出来。
4)注意结论的可靠性陈述个人观点。
在陈述主要结论的时候要使用现在时。
不要表现出试探性的倾向。
3.a b s t rac t s的类型a b s t r a c t s分为两种类型,i n f o r m a t i o n a l a b s t r a c t s和d e s c r i p t i v ea b s t r a c t s。
I n f o r m a t i o n a l A b s t r a c t s--针对r e p o r t s的相关内容进行沟通。
Abstract写作常⽤句型及句式Abstract⼀、在摘要中直接提出论⽂主题的句型和句式1、In this paper, we present a … approach to …本⽂提出了⼀种针对…的…⽅法。
2、In this paper, we describe improved … models for …本⽂介绍⼏种针对…的改进的…模型。
3、We propose a new … model and … algorithm that enables us to …我们提出⼀种新的…模型和…算法,它让我们能够…4、We present a … model that enables …我们提出了⼀种…模型,它使我们能够…5、This paper demonstrates the ability of … to perform robust and accurate …本⽂证明了…进⾏…可靠准确的…的能⼒。
6、In this paper we report results of a … approach to …本⽂报导了…的…⽅法的实验结果。
7、This paper demonstrates that … can effectively … with very high accuracy.本⽂证明,…能够有效地准确地…8、The purpose/goal/intention/objective/object/emphasis/aim of this paper is …本⽂的⽬的是…9、The primary/chief/overall/main object of this study is to survey …本研究的⾸要⽬标是考察…10、The chief aim of this paper/research/study/experiment/the present work is …本⽂的主要⽬标是…11、 The emphasis of this study lies in …我们的研究重点是…12、The work presented in this paper focuses on …本⽂所述⼯作重点放在…13、Our goal has been to provide …我们的⽬标是提供…14、The main objective of our investigation has been to obtain some knowledge of …我们的研究⽬标是获取有关…的知识。
abstract在c语言中的用法Abstract在C语言中的用法Abstract是C语言中的一个关键字,它用于定义抽象数据类型(ADT)。
抽象数据类型是一种数据类型,它的实现细节被隐藏在一个抽象层次之下,只有一组操作被公开。
这种数据类型的实现方式可以被修改,而不会影响到使用它的代码。
在C语言中,使用Abstract定义ADT需要使用struct结构体和指向结构体的指针。
下面是一个例子:```typedef struct {int data;void (*print)(int);} AbstractDataType;void printData(int data) {printf("Data: %d\n", data);}AbstractDataType* createADT(int data) {AbstractDataType* adt = (AbstractDataType*) malloc(sizeof(AbstractDataType));adt->data = data;adt->print = printData;return adt;}int main() {AbstractDataType* adt = createADT(10);adt->print(adt->data);free(adt);return 0;}```在这个例子中,我们定义了一个AbstractDataType结构体,它包含一个整数data和一个指向函数的指针print。
我们还定义了一个printData函数,它用于打印data的值。
createADT函数用于创建一个AbstractDataType对象,并将data和print函数指针初始化。
在main函数中,我们创建了一个AbstractDataType对象,调用了它的print函数,并释放了它的内存。
使用Abstract定义ADT的好处是,它可以将数据类型的实现细节隐藏起来,只公开一组操作。
考研英语:词汇abstract的中文翻译解析考研英语有许多题目组成,方便大家及时了解,下面为你精心准备了“考研英语:词汇abstract的中文翻译解析”,持续关注本站将可以持续获取的考试资讯!考研英语:词汇abstract的中文翻译解析abstract是什么意思及用法adj.1. 抽象的2. 抽象派的n.1. 抽象,抽象概念,抽象性2. 抽象派艺术作品3. 摘要,梗概及物动词:1. 提取,抽取2. 做…的摘要词形变化副词abstractly名称abstractness时态abstracted,abstracting,abstracts英语解释not representing or imitating external reality or the objects of naturemake off with belongings of othersdealing with a subject in the abstract without practical purpose or intentionconsider a concept without thinking of a specific example consider abstractly or theoreticallyconsider apart from a particular case or instancegive an abstract (of)a concept or idea not associated with any specific instancea sketchy summary of the main points of an argument or theoryexisting only in the mind separated from embodiment 例句She beheaded me, and flung my head into abstract space 她切下了我的头颅,把它扔进抽象的空间。
Modeling the Cultural Subjectivity: Towards Computational Critique?∗Matthew Francisco francm@Jeffrey Baumesbaumej@Hung-Ching Chenchen3@Mark Goldberg goldberg@ Malik Magdon-Ismailmagdon@William A.Wallacewallaw@ June1,2006AbstractIn this paper we use a computer model of social capital to explore and develop a computational social theory of the anthropological or interpretive notion of the sub jectivity(Ortner2005).The cultural sub jectivity is a social theory of the reflexive actor that is historically situated in a material and cultural context.It is important for computational social science to begin developing tools to represent the dimensions of the actor in terms of the sub jectivity because it recognizes and seeks to explain the complexity of human feelings and fears in creating meaning and in taking action.Theories of sub jectivity also offer a model of human action and play that is neither universal nor individual.Developing a computational social theory of the sub jectivity is an impossible and improbable task,however,in seeking to develop this theory in code we might be able to posit clearer questions in social research regarding the sub jectivity and explore the operational limits of computational social science,which is a theory in itself.Also accounting for how complex structures of feeling and experienceanxieties,fears, dreams,hopes and the likedevelop as a component inside complex social organizations,ones that can be rigorously explored with computational methods,a foundation can be created for a critical computational social science.Contact:Matthew FranciscoScience and Technology Studies DepartmentRensselaer Polytechnic InstituteTroy,NY12180Email:francm@Phone:518-894-5012Modeling the Cultural Subjectivity:Towards Computational Critique?Matthew Francisco,Jeffrey Baumes,Hung-Ching Chen,Mark Goldberg,Malik Magdon-Ismail,and William A.Wallace One of the main problems in computational social science,and in the human sciences in general,is to realistically and practically model human agency and the various biological,physical,social,and cultural formations that compel and impede this agency.Already this conversation has been extended to practitioners interested in studying the dynamics of human activity via the use of computation in discussions over complex versus simple agents(Billari,Fent,Prskawetz&Scheffran2006)and over the difference between a focus on developing individual agent models versus learning parameters that guide interaction among homogenous agents(Chattoe2002).It is worth extending this conversation by developing models that explicitly attempt to make anthropologically informed theories of subjectivity(Lave,Duguid,Fernandez&Axel1992,Ortner 2005,Weber1958,Geertz1973,Marcus&Fischer1986)into computer codes.As such it should be stated that modeling cultural subjectivity1is an ambitious task,which can likely never be achieved.Although much is left out in our specifications,working out different possible approaches to the subjectivity—especially approaches that tease out new ways of visualizing and conceptualizing how different levels and scales of human existence come to interact with micro and macro entities—is a critical theory-building activity for computational social scientists.In seeking to develop this theory in code we might be able to posit clearer questions in social research regarding the subjectivity and explore the operational limits of computational social science.Also accounting for how complex structures of feeling and experience—anxieties,fears,dreams, hopes and the like—develop as a component inside complex social organizations,ones that can be rigorously explored with computational methods,a foundation can be created for detailed analysis and assessment of how subjects negotiate social complexity.In this paper we specify two different subjectivity configurations that represent an ethic of civic,or community-based,and manager,or professional,social interaction.We use these configurations to test Robert Putnam’s hypothesis that social capital has decreased in the United States as(1)American Culture has transitioned from civic to manager-professional minded and(2)the introduction of new tools and tech-nologies have given more energy and time to individuals and made more opportunities for social interaction (Putnam2000).Both social capital and the corresponding subjectivity configurations are modeled using Virtual Simulation and Analysis of Group Evolution(ViSAGE),which is a general architecture for modeling the dynamic formation of social groups through statistical agent membership processes.1What is Subjectivity?In our view subjectivity—which is similar to identity,personhood,standpoint,andfigurations(Haraway 1997)—signifies the manner in which individuals are driven to make meaning and take action through the manipulation and negotiation of feeling or emotion.Such processes are inherently cultural(Marcus&Fischer 1986)and therefore require an analysis of how these‘inner states’of individuals are shaped by cultural and social structures.Sherry Ortner defines the subjectivity as“the ensemble of modes of perception,affect, thought,desire,fear,and so forth that animate acting subjects...as well[as]the cultural and social formations that shape,organize,and provoke those modes of affect,thought and so on”(Ortner2005,pg.31).It is through an analysis of how subjects make meaning and become animated that the social scientist explores social reality and the many cross-cutting dimensions and levels of social order that are often implicated in any human activity.Thus the common(cultural)strategies and resources that subjects use to make decisions and generate alternatives in everyday life is a methodological entry point into larger social phenomenon.A short example of subjectivity may be found in thefield of Science Studies(Hess1997),which takes as its focus the rise of modern scientific institutions.One of the prominent questions in thisfield is tounderstand how the identity of the scientist,as objective and reserved,formed and,also,how that identity is deployed today to make modern scientific projects.In the book The Leviathan and the Airpump Shapin and Schaffer describe the historical,social,and material conditions that gave rise to the modern experiment.By analyzing a philosophical and political dispute between Thomas Hobbes and Robert Boyle,which concerned the nature of truth and natural knowledge,Shapin and Schaffer show the genesis of the modern scientific subjectivity that has come to be called the“modest witness”(Shapin&Schaffer1989,Haraway1997).It was the political,cultural,economic,material,and social circumstances in mid-17th century England and Europe that gave rise to an elite class of humans who could validate the facts of an experiment as true. These individuals were male,wealthy,but,most importantly,they had an ethic of separating emotion from their testimony.Donna Haraway says that in order for this seperation of the self to be visible,for modesty to be visible in the production of scientific knowledge,“the man—the witness whose accounts mirror reality—must be invisible,that is,an inhabitant of the potent‘unmarked category,’which is constructed by the extraordinary conventions of self-invisibility”(Haraway1997,pg.23).The new experimental spaces that were developed during the time of Boyle and Hobbes could have either been open to the public and put under the scrutiny of diverse sets of people(i.e.women and the poor)or closed,allowing only allowing certain kinds of people in.The Leviathan and the Air-Pump illustrates that these experimental spaces were not constructed for democratic purposes but rather to cater towards the construction of a new class of human and validator of knowledge.These were individuals who seemed to have no culture,to have moved passed personal and political investment,the modest witness.Subjectivity is more emergent,distributed,and deeply held by individuals than a social role(i.e.a scientist that inhabits a specific community of scholars and a specific institution and who thus has duties and obligations associated with these relationships)and it is more precise and general than an identity(i.e.a white anglo-saxon protestant male scientist).Claims about subjectivity say something about the historical and cultural nature of an identity and how normative duties and obligations of individuals on a daily basis coincide and,oftentimes,clash with these historical and cultural formations.Understanding the tension between structure and agency,as it is known,is both fundamental to the idea of subjectivity and critical for understanding the development of society.2The Social Capital Generating SubjectivityThere are two generally accepted methodologies for explicating and specifying subjectivities.First is to gather ethnographic data through observations and interviews of people going through change,social trauma, or new resolving some new material or cultural forms.Sharon Traweek calls these critical methodological locations“faultlines”(Traweek2000).It is at these faultlines where subjectivity becomes visible to the observer because actors must resolve contradictions in their worldviews and to do so develop a language for expressing this resolution.The second way to analyze subjectivity is through historical and discursive analysis.Here sense-making is written and achieved through participation of subjects in written forums such as journals,books,newspaper..etc.For our purposes we take claims made from observations of historians, sociologists,and anthropologists about social capital in the United States as well as the general beliefs about social capital posited in academic forums to formalize instances of a cultural subjectivity.We view social capital as a modern belief about the value of building and maintaining relationships with other humans.It is believed that by making“connections”or“links”to other people one can generate wealth in a measurable form.In more vernacular settings social capital is understood simply as“where there’s a contact there’s a contract,”which is to say that the more people you know the more opportunity you have to achieve goals.In academic discourse,however,the concept of social capital becomes more sophisticated and precise(Borgatti,Jones&Everett1998,Flap&Volker2004,Burt1997).Generally there are two views of social capital that are distinguished by a dedication to two different units of analysis:the community and the individual.Robert Putnam sees social capital as something that a community has(Putnam2000)while Nan Lin,for example,sees social capital as something that an individual possesses(Lin2001).We account for these two views by implementing two notions of social capital into the model:bonding and bridging social capital.2.1Bonding and Bridging Social CapitalBorgatti et al.(1998)formalize social capital as a series of standard social network measures across three different dimensions of analysis;external actor,internal group,and external group.For external measures, increasing degree,the number of relationships an entity has with other similar entities,adds to social capital while increasing density,a measure of how related an entity’s relatives are,takes away from social capital. Internal measures are the inverse of external;increasing the density of actors within a group increases social capital while increasing the degree of actors within a group decreases social ing ViSAGE we distinguish between bridging and bonding as two different forms of social capital(Putnam2000)along the dimensions specified by Borgatti et al.(1998).In this case,degree describes bridging social capital,while lack of degree describes bonding social capital.Similarly,density describes bonding social capital,while lack of density describes bridging social capital.Hence we specify four different measures of social capital in our model:•Individual-level bonding social capital(C bo i),which is the sum of the ranks,r i k,of actor i for every group,k,i is a member, r i k.Here rank is a measure of how long actor i has had membership in a group in comparison to other members.The higher proportion of time the higher the rank.•Individual-level bridging social capital(C br i),which is the number of groups actor i is a member, |G k|.•Local-level bonding social capital(C bo j),which is the density—the proportion of links between alter groups,j,over the number of total possible links—of a group k.•Local-level bridging social capital(C br j),which is the degree—the total number of alter groups,j—ofa group,k.2.2Excess EnergyThe social capital model uses the ViSAGE variable energy,E i,to designate the physical,mental,and emotional capacity an agent has to engage the community.The social configuration an agent resides in at each time-step depletes the agent’s store of energy.The two aspects of the social configuration that factor into energy depletion are individual-level bridging social capital and individual-level bonding social capital. The left over energy is excess energy,which is calculated with the equation E E i=E i−φi∗C br i−ψi∗C bo i, whereφi is the group cost,the cost of maintaining membership of a group independent of rank,andψi is the rank group cost,the cost of being part of the group that scales with rank.The ViSAGE variable C S i is designated as emotional energy—the feelings an actor experiences of elation or anxiety(Collins2004)—and it affects the productivity of an individual in maintaining a specific social configuration,a number of member groups and the associated distribution of ranks in each group.This is formalized inφi andψi.Here the more emotional energy actor i has(C S i),the less amount of energy actor ispends for each group and for maintaining the rank in each group:φi=φmax1+C Si ,whereφmaxis the maximum amount of energy spent in a group,andψmax is the maximum amount of energy spent maintaining the rank in a group.2.3To Join,Leave,or StayIn our model for every timestep each agent is forced to assess their social and personal situation,which results in the return of feelings of anxiety or elation.We represent with the variable,following Randall Collins’notion,“emotional energy”C S i(-1:1)(Collins2004).This assessment is animated by the properties of a specific subjectivity that combines an agent’s own volition and social norms concerning what action is to be taken:to attempt to gain membership in a new group,to leave a current group,or to maintain all current memberships as is.A three-by-three table is used to combine the agent’s choice(rows)and the socially normative action(columns),see table1–table6.Furthermore,agent choice and the normative action are determined by differently assessing an agent’s excess energy,E E i.For the remainder of this section we specify two tables of the civic minded subjectivity and the manager-professional subjectivity.The civic social capital subjectivity(civic class)is specified in table3and is derived from adding table1and table2together element-by-element.If an actor chooses to stay in a group this adds to a feeling of elation,which is given by returning a positive number,and if this actor chooses to leave a group the actor will become distressed and a negative number is returned to indicate this(see table1).This represents the fact that there is a perceived value in sticking with your existing social groups as would be an ethic observed in a community-oriented culture.Also as there is value in loyalty to existing groups there is also an ethic of following social norms,of maintaining coordination with the communities values.This is represented in table2.join leave Act01-1Normstayjoin1-1stay00leave-11Table2:Accordance Valuedjoin leaveAct02-1Normstay join11 stay00 leave-1-1Table4:Join is Valuedjoin leaveAct0Normstayjoin12stay00leave-2-1Table6:Manager Class 3Experiment and DiscussionRobert Putnam claims that communities in the United States have lost place-based social capital while gaining function-based social capital(Putnam2000).Place-based social capital is characterized by the presence of many small groups,such as a card game group or a dinner party,that function to bridge across a community and the presence of many larger groups,such as town hall meetings or volunteer groups or community work groups,that function to bond a community.In this view small groups,which we define to be between two(2)and seven(7),will have a relatively high degree and low density and large groups,which we define to be eight(8)to twenty(20),will have a relatively high density and low degree.Small groups bridge and large groups bond.To test the hypothesis that social capital has decreased from mid-century to late-century American communities we ask if a civic class community generates social capital in the manner discussed above while the manager class community does not.We also test to see if by simulating the introduction of opportunity-expanding and efficiency-making technologies have an effect on the performance of each subjectivity to generate social capital.To model the introduction of technology we(1)test different opportunity values (OV),which is a variable in ViSAGE that gives agents more opportunities to form new groups,and(2) increase the energy of every actor by0.01at every timestep for100timesteps.We ran a total of twelveP arameters ResultsClass∆E i C br j Large C bo j Small Large c1250 2.50.2860 Manager0 3.00.28115 c4e2507.50.500 Manager0.0115.00.39205Civic0 3.40.28135 m21000 1.90.29100 Civic0.0116.50.40250 m5e1000 4.50.2545c32000 2.50.3080 Manager0 1.10.3085 c6e20007.00.4095 Manager0.01 4.50.40175 Table7:Results from twelve social capital subjectivity experimentssimulations with specifications outlined in table7.We classified the output into the number of small and large groups(column9and10in table7)and by the local-level bridging social capital and the local-level bonding social capital of large and small groups.The simulation did not generate the results we expected where the manager class community produced more large group local-level bridging social capital and more small group local-level bonding social capi-tal than the civic class community and the civic class community should have generated more small group local-level bridging social capital and more large group local-level bonding social capital.The results instead show that the civic community outperformed the manager in every social capital measure and experiment except for in the local-level bonding social capital of both large and small groups of c1and m1.What did emerge from our simulations was the varied presence of the number of groups,which we added as a third dimension to social capital that was not present in the literature we reviewed.While the civic community usually generated more bridging and bonding social capital as specified in our model, the performance of each subjectivity in generating groups between manager and civic classes tells a more interesting story.The data shows the manager class might be better at generating new and small groups in the face of technological change(see c5e,m5e,c6e,and m6e),which is unexpected since the civic class performs better on all social capital measures.4ConclusionSince the strategic importance of understanding social capital is to understand the capacity individuals and groups have to achieve their goals it is particularly important to think through the different ways in which culture factors into this process.This happens namely through the sense-making cultural subjectivity.Do particular subjectivities generate“wealth”better than others?Under what conditions do these cultural modes of sense-making perform well and in what situations do they perform poorly?Social capital is but one way to gauge such questions.Understanding and modeling subjectivity is a critical practice because it helps us to think about two interrelated processes.First,if there is a top-down change,such as a policy change,an introduction of a new set of technologies,or the establishment of an entire technological system,how is the ability of a culture to generate wealth(social capital)affected?Second,how do our models help us to think about how cultures (can)adapt to these top-down changes?How do our notions of culture and subjectivity imply the possibility of a“culturalfix”(Layne2000)over a top-downfix?The ability to think through these problems in a robust and systematic manner can possibly be a powerful tool for cultural critique in the future and enhance the ability for realizing the different dimensions and locations of intervention that often go invisible.ReferencesBillari,F.,Fent,T.,Prskawetz,A.&Scheffran,J.(2006),Agent-based computational modelling:applications in demography,social,economic and environmental sciences,Physica-Verlag Heidelberg.Borgatti,S.P.,Jones,C.&Everett,M.G.(1998),‘Network measures of social capital’,Connections 21(2),10.Burt,R.(1997),‘The contingent value of social capital’,Administrative 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