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1、发言稿开场白（优秀5篇）发言稿开场白 篇一 女士们！先生们！欢迎大家来参加心理学学术大会。首先，请允许我向大家介绍今天的特别嘉宾：丁芳教授。丁芳教授来自苏州大学教育学院，是发展与教育心理学方向的导师。丁芳教授的主要研究方向是儿童认知和社会性发展。儿童的认知发展研究是儿童发展心理学的主要研究领域，包括儿童对自然现象的认识，以及社会认知心理理论和儿童的语言的习得等。儿童社会性发展主要用精神分析、社会学习理论和认知发现理论来分别解释儿童社会动机和情感、社会行为及社会认知的发展等心理现象。儿童认知发展水平是其社会性发展的基础， 儿童社会性发展又能促进其认知的发展，两者之间是相辅相成的关系。那么下面让我
2、们有请丁教授，让她向我们详细介绍这一领域的主要内容和她的主要研究成果。 女士们！先生们！欢迎大家来参加心理学学术大会。首先，请允许我向大家介绍今天的特别嘉宾：丁芳教授。丁芳教授来自苏州大学教育学院，是发展与教育心理学方向的导师。丁芳教授的主要研究方向是儿童认知和社会性发展。儿童的认知发展研究是儿童发展心理学的主要研究领域，包括儿童对自然现象的认识，以及社会认知心理理论和儿童的语言的习得等。儿童社会性发展主要用精神分析、社会学习理论和认知发现理论来分别解释儿童社会动机和情感、社会行为及社会认知的发展等心理现象。儿童认知发展水平是其社会性发展的基础， 儿童社会性发展又能促进其认知的发展，两者之间是
3、相辅相成的关系。那么下面让我们有请丁教授，让她向我们详细介绍这一领域的主要内容和她的我主要研究成果。 mr.chairman,ladies and gentlemen , welcome everyone to join psychology academic conference.first of all,i would like to express my deep appreciation to the organizing committee giving this opportunity for me here possible,then i am also greatly hono
4、r to introduce my tutor,professor dingfang. professor ding comes from the education department of soochow university.her main research interests are in childrens cognitive and social development. childrens cognitive development is the main areas of child developmentalpsychology research ,that invest
5、igates the childrens understanding of natural phenomena,social cognition (e.g.theory of mind) and language aqusition in childhood etc.and reaserchers in area of children social development use psychoanalytic theory,social learning theory and cognitive development theory to explain the childrens soci
6、al motivation and emotion, social behavior, social cognition development and other mental phenomena.the level of childrens cognitive development is the basis of their social development. in contrast,childrens social development contributes to their cognitive development. in a word,both between is co
7、mplementary relationship. so lets welcome professor ding to give our detailed introduction about main contents in this field and her main research achievements. thank you very much. theory-of-mind development is the area of cognitive development research that investigates the nature and development
8、of our understanding of the mental worldthe inner world inhabited by beliefs, desires, emotions, thoughts, perceptions, intentions, and other mental states. 发言稿开场白 篇五 1. prologue thank you, mr. chairman, for your gracious introduction. i am honored to have the chance to address you on this special o
9、ccasion. the topic of my paper is transaction cost and farmers choice of agricultural products selling. the outline of my talk as follows. the first part i want to introduce the background of this research. the second part suggests a simple household choice model .the third part covers the data used
10、 in this research. and then, we introduce the empirical results. finally, a simple conclusion is given. 2. introduction well, lets move on the first part of this topic .the motivation of this work like this. institutional economics posits that agents making decisions on different types of transactio
11、ns do so in a costly way .for example , farmers deciding sell a particular crop to whom base their decisions not only on the price they expect to receive in each market choice but also on additional costs related to transacting in these markets. i want to use a picture to illustrate it. for example,
12、 given some market channels, farmers choices can be regarded as equilibrium between the surplus and the additional costs that related to transacting .especially in developing countries, high-value crop producers fully participate in the market and the transaction cost has been the hard constraint to
13、 farmers. furthermore, farmers market choices can be taken as a choice dilemma of transaction cost and production surplus. consequently, the scientific question of this research is how transaction cost affects planters choices. 3. methodology lets move to the theoretical model of our research. consi
14、der a household model in one rotation. in stage 1 , famer needs to allocate the input factors .this process can qbe set into a function like this q q( p , w , z ) , q means the output farmers decide qto produce .p implies the output price w implies input price and.z: is fixed input. once produce wha
15、t and produce how many are decided, next question to be considered is how much products to be transacted in market. here we use three ccc means how functions to describe this question. the first equation, c p , z much agricultural products used by famers themselves. p implies the price the cagricult
16、ural product,z suggests the fluctuation of c. the second equation q q c, q means the amount of agricultural products transacted in qnmarket. the third equationi q implies the amount exchanged in nth time. in stage 3, farmers will decide to sell the products to whom. chanel js market price is bdecide
17、d by an exogenesis price and farmers negotiating power.pijp* jb(qi,zi)besides this, we use a matrix to show the net profit of chanel jx ik ik, ik and then farmers choice can be expressed in a typical choice model exp(xij)pr(jij|xik)1 exp(xij) k1 based on the choice model, another important concept i
18、s famers channel choice .here, we set five types .they rank by the market barriers. accordingly, we set a group discrete number to express them. y: dependent variable y=5,means farmer choose brokers. y=1, farmers sell products to consumers directly. 4. data and estimation procedures here, we illustr
19、ate the data distribution with this map. according to the agricultural regionalization from department of agriculture, the apple specialization areas in china contain two parts: bo sea area and loess plateau. bo sea area in red color, contains hebei, shandong and liaoning 3 provinces. and loess plateau in green color, contains shanxi, henan, shaanxi and gansu 4 provinces. firstly, we use pps method to get the first stage sampling unit 14 counties in 7 provinces. then use random sample method to get village and household. they are our sample distribution. 5. empirical results 6. conclusions7