chemical structural and biological features of dna lesions

... Trang 1MINISTRY OF EDUCATION AND TRAINING HANOI OPEN UNIVERSITY M.A THESIS A CONTRASTIVE STUDY OF STRUCTURAL AND SEMANTIC FEATURES OF ENGLISH YES-NO QUESTIONS AND THEIR VIETNAMESE EQUIVALENTS ... 2CERTIFICATE OF ORIGINALITY I, the undersigned, hereby certify my authority of the study project report entitled :“A contrastive study of structural and semantic features of English Yes-No questions and ... similarities and differences are clearly shown by the contrastive analysis of forms which include intonation, inversion and question particles, features of Yes/No Question content, and features of Yes/No

Ngày tải lên: 22/03/2018, 22:31

... proper comprehension and usage of tag questions Trang 92 1.2 Aims and objectives of the study The study is conducted to understand about the structural and semantic features of English tag questions, ... guidance, and support of my supervisor were immensely helpful and encouraging And Assoc Prof Dr Phan Văn Quế was tireless, brave, and thorough to help me I acknowledge the work and the lectures of lecturers ... term of semantic and pragmatic features These works have brought about an overview of tag question in English Generally, they presented linguistic features of tag questions- their structure and

Ngày tải lên: 17/09/2019, 23:22

... MINISTRY OF EDUCATION VIETNAM ACADEMY AND TRAINING OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY OF SCIENCE AND TECHNOLOGY - VU THI QUYNH CHI STUDY ON CHEMICAL CONSTITUENTS AND BIOLOGICAL ... first study on chemical constituents and biological activities of Tacca vietnamensis and biological activities of Tacca chantrieri growing in Vietnam Nine compounds were isolated and identified ... national and international researches related to my study of the chemical constituents and biological activity of Tacca and about cancer and inflammation 1.1 Introduction to Tacca genus The genus

Ngày tải lên: 09/01/2020, 15:35

... objectives of the thesis Study on chemical constituents and biological activity of two species: B Laxiflora and F hirta 3 The main contents of the thesis Isolation and determination of chemical ... 2016 and were identified by Assoc Prof Do Huu Thu, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology (VAST) A voucher specimen has been kept in Laboratory of ... country’s vegetation is rich and diversified, Vietnam has many natural conservations that are home to thousands of species of rare plants and animals, and rich medicinal herbs and various resources

Ngày tải lên: 10/01/2020, 06:40

... MINISTRY OF VIETNAM ACADEMY OF EDUCATION AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY FOR SCIENCE AND TECHNOLOGY - PHAM THI NINH STUDY ON CHEMICAL CONSTITUENTS AND BIOLOGICAL ... Inhibition activity of α- glucosidase of the extracts in vitro The activity in decreasing of the blood sugar levels of the ethanol/ water extracts of the barks and leaves of L.glutinosa from ... thesis ‘‘Study on Chemical constituents and biological activities of Litsea glutinosa (Lour.) Rob (Lauraceae) and Lepisanthes rubiginosa (Roxb.) (Sapindaceae) in Vienam: Objective of the study in

Ngày tải lên: 10/01/2020, 06:54

... objectives of the thesis Study on chemical constituents and biological activity of two species: B Laxiflora and F hirta 3 The main contents of the thesis Isolation and determination of chemical ... 2016 and were identified by Assoc Prof Do Huu Thu, Institute of Ecology and Biological Resources, Vietnam Academy of Science and Technology (VAST) A voucher specimen has been kept in Laboratory of ... country’s vegetation is rich and diversified, Vietnam has many natural conservations that are home to thousands of species of rare plants and animals, and rich medicinal herbs and various resources

Ngày tải lên: 16/01/2020, 19:50

... MINISTRY OF VIETNAM ACADEMY OF EDUCATION AND TRAINING SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY FOR SCIENCE AND TECHNOLOGY - PHAM THI NINH STUDY ON CHEMICAL CONSTITUENTS AND BIOLOGICAL ... Inhibition activity of α- glucosidase of the extracts in vitro The activity in decreasing of the blood sugar levels of the ethanol/ water extracts of the barks and leaves of L.glutinosa from ... thesis ‘‘Study on Chemical constituents and biological activities of Litsea glutinosa (Lour.) Rob (Lauraceae) and Lepisanthes rubiginosa (Roxb.) (Sapindaceae) in Vienam: Objective of the study in

Ngày tải lên: 17/01/2020, 06:58

... correlations and stereochemical Figure 3.28: The relative relationship of biological activity and chemical Figure 3.29: The relative relationship of biological activity and chemical structure of three ... me and for being proud of me Their unconditional love and support has given me the strength and courage while I am far from home Trang 6-iv- TABLE OF CONTENTS 1.1.2 Biological significance of ... of isolated compounds Trang 13-xi- LIST OF FIGURES AND SCHEMES Page Figure 1.2: Probable pathways leading to the major groups of lichen Figure 1.7: Chemical constituents of some lichens of

Ngày tải lên: 11/07/2021, 16:59

... place and time to proceed - Location : Laboratory of Institute of Life Sciences, at Thai Nguyen University of Agriculture and Forestry 2.4 Equipment and chemicals Table 2.1: Experiment Chemicals ... Laboratory of natural products chemistry - Institute of life sciences, Viet Nam 2 Intitute of natural products chemistry, Vietnam of Science and Technology (VAST), Viet Nam 3 Thai Nguyen University of ... research, and development of functional products, care healthy products from the chemical components of this plant Keywords: Cinnamomum Burmannii; essential oil; GC-MS, Cao Bang, IC50 RESEARCH OF CHEMICAL

Ngày tải lên: 20/12/2022, 23:41

... chất có vòng B liên kết ở vị trí 3 của vòng C được gọi là isoflavone, còn những chất vòng B được liên kết ở vị trí 4 được gọi là neoflavonoid, trong khi những chất vòng B được liên kết ở vị trí ... Carter and Thornburg (2000) đã chứng minh rằng NEC1 có vai trò bảo vệ các mô sinh sản của hoa khỏi sự tấn công của vi sinh vật Tuy nhiên loại protein này chỉ có ở một số loài như Brugmansia candida, ... tiết mật được xác định dựa theo nghiên cứu của Pacini and Nicolson (2007) Vị trí tiết mật được xác định dựa theo nghiên cứu của Pacini and Nicolson (2007) và Heil (2011) Thể tích mật sẽ được

Ngày tải lên: 01/10/2024, 18:19

... instance, pages of introduction, 45 pages of overview, 21 pages of research methods, 15 pages of experiment, 79 pages of result and discussions, pages of conclusions and recommendations, pages of publication ... extraction process of fucoidan from the method of Bilan et al to study the structure and biological activity of fucoidans 4.2 Content of fucoidan and of some water soluble polysaccharides of 06 brown ... MINISTRY OF EDUCATION AND TRAINING VIETNAM ACADEMY OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY SCIENCE AND TECHNOLOGY …… ….***………… BUI VAN NGUYEN STRUCTURAL CHARACTERISTICS AND BIOLOGICAL

Ngày tải lên: 09/01/2020, 15:33

... 1MINISTRY OF EDUCATION AND TRAINING VIETNAM ACADEMY OF SCIENCE AND TECHNOLOGY GRADUATE UNIVERSITY SCIENCE AND TECHNOLOGY - Nguyen Dinh Chung STUDY ON CHEMICAL CONSTITUENTS AND BIOLOGICAL ... tubers of O japonicus were collected in Feb 2014 at Me Linh, Hanoi and identified by Prof Tran Huy Thai, Institute of Trang 5Ecology and Biological Resources, Vietnam Academy of Science and Technology ... of the thesis  Study on chemical constituents from the tubers of O japonicus;  Evaluation of biological activities of isolated compounds to find potential compounds 3 The main contents of

Ngày tải lên: 10/01/2020, 06:45

... language in general and in idioms in particular 15 Chapter structural and semantic features of English and Vietnamese idioms referring to head 2.1 Structural features 2.1.1 Structures of English Idioms ... aim of the study is to make a contrast of structural and semantic features of English and Vietnamese idioms referring to Head The second aim is to help English learners improve their knowledge of ... meanings is the information of the features of geographical and natural conditions in the living of native people and the history, economy, art and the psychology of the people In this thesis,...

Ngày tải lên: 20/12/2013, 18:33

... addition of a backbone methylene group could have minor effects on the overall conformation and biological activity of the peptide Thus, SP was used as a model peptide to analyse the structural and biological ... methyl of Aib, on the opposite side of the pyrrolidine ring of Pro A parallel can be drawn regarding the differences in biological activities between [Ala9]SP and [Gly9]SP on the one hand, and [b2-HAla9]SP ... Effects of b-amino acid insertion in Substance P (Eur J Biochem 270) 941 The chemical shift deviations of Ha and Ca were calculated using random coil values determined in methanol [31] and water...

Ngày tải lên: 08/03/2014, 08:20

... Identify and point out the structural and functional features of Fronting in English and “Khởi ngữ” in Vietnamese - Find out the similarities and differences in the structural and functional features ... Structures of Fronting and Khởi ngữ The analysis and discussions of the structures of fronting and khởi ngữ” deals with their syntactic features in terms of sentence elements and parts of speech ... the structural and functional features of Fronting in English and “khởi ngữ” in Vietnamese? (2) What are the similarities and differences in the structure and function of English Fronting and...

Ngày tải lên: 28/02/2015, 11:54

... Chemical structure of phenolic compounds 83 3.1.7 Chemical structure of steroids and terpenoids 101 3.1.8 Chemical structure of other compounds 110 3.2 Biological activities of extracts and isolated ... OA of the mixed solution (*) with replacement 25µl of buffer B, instead of 25µl of samples OA2: the OA of the mixed solution (*) with replacement 50µl of buffer B, instead of 25µl of samples and ... Hz, H-10) and 6.01 (s, H-6) The splitting of signals and coupling constants of protons at δH 8.28, 7.01 and 6.94 demonstrated two ortho-coupled protons of H–1, H–2 and H–3 of the A ring and the...

Ngày tải lên: 24/08/2015, 12:40

... IR, MS and NMR spectra of PRAES-C1 146 Appendices 8-15: IR, MS and NMR spectra of PRAES-E14 149 Appendices 16-21: MS and NMR spectra of PRAES-C10 153 Appendices 22-26: MS and NMR spectra of PRAES-C11 ... correlations of PRAES-E1 and PRAES-T2 48 Figure 3.8 HMBC correlations of PRAES-E11, PRAES-T4 and PRAES-E2 52 Figure 3.9 HMBC and NOESY correlations of PRAES-C22 54 Figure 3.10 HMBC and NOESY correlations ... 62 Figure 3.14 HMBC and NOESY correlations of PRAES-C25 and PRAES-C26 63 xiv Figure 3.15 HMBC correlations of PRAES-C9 and PRAES-C7 67 Figure 3.16 COSY and HMBC correlations of PRAES-E18 70 Figure...

Ngày tải lên: 15/12/2015, 15:22

... compositions and biological activities of Annona glabra L So, the thesis’s title was proposed to be "Study on chemical compositions and biological activities of Annona glabra L." Subject and contents of ... Subject is the leaves and fruits of Annona glabra - The aims of the thesis: Extraction and isolation of secondary metabolites from A glabra; Determination of chemical structure of the isolated compounds; ... using for determination of chemical structure of compounds General method using for determination of chemical structure of the compounds is a combination of physical parameters and modern spectroscopic...

Ngày tải lên: 28/04/2016, 17:48

... a detailed analysis of discourse features of English and VFPAs in terms of layout, grammatical features, lexical features, cohesive and stylistic devices Additionally, much of our effort has been ... productivity and raise the standard of living To the society, advertising can accelerate the growth of economy, and thus improve the standard of living It also promotes the mass-media and gives ... structures and semantics of sentence types in English and Vietnamese Advertisement discourse - To find out the similarities and differences between English and Vietnamese in terms of these above...

Ngày tải lên: 06/06/2016, 15:00

... iv LIST OF TABLES Table 1: English and Vietnamese idioms denoting “anger” in terms of structural features 32 Table 2.Comparison of English and Vietnamese idioms denoting “anger” in terms of semantic ... 1: phrases The rough field of vocabulary 2.2.2.3 Features of English Idioms a) Structural features Jennifer Seidl and W McMordie (1978:5) give some special features of English idioms as follows: ... metaphorical and metonymical expression of anger in English, Lakoff and his colleagues (Lakoff 1987, Lakoff and Kovecses 1987, ect.) identify the following conceptual metaphors and metonymies:...

Ngày tải lên: 24/06/2016, 21:18