This paper tries to illustrate the pragmatic sense of schema theory in English teaching from the perspective of cognitive psychology. The process of knowledge acquisition is an assimilative process, in which the logic...This paper tries to illustrate the pragmatic sense of schema theory in English teaching from the perspective of cognitive psychology. The process of knowledge acquisition is an assimilative process, in which the logic sense of the material in the form of words or any other symbolic representation interact with the notions in students' cognitive structure and hence produce individual psychological sense. This paper also observes teaching of English reading from the following six dimensions of the three perspectives of micro-proposition, synthetic-proposition and macro-proposition:1.degree of similarity of basic category words; 2. ambiguity of words and sentences; 3. ambiguity of the 'signifying' and the 'signified'; 4. the distance between the 'signifying' and the 'signified'; 5. the regressive search of cognition; 6. the unification of the 'part' and the 'whole'. The paper probes into the factors that influence students' cognitive process and the practice of schema theory in teaching.展开更多
Preimplantation genetic diagnosis (PGD) refers to a procedure for genetically analyzing embryos prior to implantation,improving the chance of conception for patients at high risk of transmitting specific inherited dis...Preimplantation genetic diagnosis (PGD) refers to a procedure for genetically analyzing embryos prior to implantation,improving the chance of conception for patients at high risk of transmitting specific inherited disorders.This method has been widely used for a large number of genetic disorders since the first successful application in the early 1990s.Polymerase chain reaction (PCR) and fluorescent in situ hybridization (FISH) are the two main methods in PGD,but there are some inevitable shortcomings limiting the scope of genetic diagnosis.Fortunately,different whole genome amplification (WGA) techniques have been developed to overcome these problems.Sufficient DNA can be amplified and multiple tasks which need abundant DNA can be performed.Moreover,WGA products can be analyzed as a template for multi-loci and multi-gene during the subsequent DNA analysis.In this review,we will focus on the currently available WGA techniques and their applications,as well as the new technical trends from WGA products.展开更多
文摘This paper tries to illustrate the pragmatic sense of schema theory in English teaching from the perspective of cognitive psychology. The process of knowledge acquisition is an assimilative process, in which the logic sense of the material in the form of words or any other symbolic representation interact with the notions in students' cognitive structure and hence produce individual psychological sense. This paper also observes teaching of English reading from the following six dimensions of the three perspectives of micro-proposition, synthetic-proposition and macro-proposition:1.degree of similarity of basic category words; 2. ambiguity of words and sentences; 3. ambiguity of the 'signifying' and the 'signified'; 4. the distance between the 'signifying' and the 'signified'; 5. the regressive search of cognition; 6. the unification of the 'part' and the 'whole'. The paper probes into the factors that influence students' cognitive process and the practice of schema theory in teaching.
基金Project supported by the National Basic Research Program (973) of China (No.2007CB948104)the Natural Science Foundation of Zhejiang Province,China (No.Z207021)
文摘Preimplantation genetic diagnosis (PGD) refers to a procedure for genetically analyzing embryos prior to implantation,improving the chance of conception for patients at high risk of transmitting specific inherited disorders.This method has been widely used for a large number of genetic disorders since the first successful application in the early 1990s.Polymerase chain reaction (PCR) and fluorescent in situ hybridization (FISH) are the two main methods in PGD,but there are some inevitable shortcomings limiting the scope of genetic diagnosis.Fortunately,different whole genome amplification (WGA) techniques have been developed to overcome these problems.Sufficient DNA can be amplified and multiple tasks which need abundant DNA can be performed.Moreover,WGA products can be analyzed as a template for multi-loci and multi-gene during the subsequent DNA analysis.In this review,we will focus on the currently available WGA techniques and their applications,as well as the new technical trends from WGA products.
