new technologies for isolation and analysis of bioactive compounds

... activity of the n- hexane and methanol extracts of A. paniculata. Seven compounds, namely andrographolide, bis-androgra- pholide 14-deoxy-11,12-didehydroandrographolide, andrograpanin, 14-deoxyandrographolide, ... diterpene compounds including andrographolide enhance proliferation and IL-2 secretion in hPBL [41]. Andrographolide enhances secretion of IL-2 and IFNγ by T cells and stimulates the production of cytotoxic ... is properly cited. Review Isolation and identification of bioactive compounds in Andrographis paniculata ( Chuanxinlian ) Wen-Wan Chao and Bi-Fong Lin* Abstract Andrographis paniculata (Burm....

Ngày tải lên: 13/08/2014, 15:21

... incubation for days in medium containing a concentration of G418 (Invitrogen) of 400 lgỈmL)1 G418-resistant colonies were picked and expanded for PCR genotyping and the formation of embryoid ... Development of a new method for isolation and long-term culture of organ-specific blood vascular and lymphatic endothelial cells of the mouse Takashi Yamaguchi, Taeko ... back-crossed five times or more with B6 mice and used for analysis For genotyping, PCR and ⁄ or X-gal staining of tail tips were performed ESCs were maintained on a layer of irradiated, G418resistant mouse...

Ngày tải lên: 18/02/2014, 17:20

... A RAND INFRASTRUCTURE, SAFETY, AND ENVIRONMENT PROGRAM Environment, Energy, and Economic Development For More Information Visit RAND at www.rand.org Explore the RAND Environment, Energy, and ... required from RAND to reproduce, or reuse in another form, any of our research documents for commercial use. For information on reprint and linking permissions, please see RAND Permissions. Skip ... service of the RAND Corporation. CHILDREN AND FAMILIES EDUCATION AND THE ARTS ENERGY AND ENVIRONMENT HEALTH AND HEALTH CARE INFRASTRUCTURE AND TRANSPORTATION INTERNATIONAL AFFAIRS LAW AND BUSINESS...

Ngày tải lên: 23/03/2014, 00:20

... used for hold- ing user information. Each group is responsible for acting as the data warehouse for a specific set of information. The AuthorDB and ArticleDB grouping is used for holding information ... mutational analysis of binding sites within genes and determining the effect of loss of binding * Correspondence: rgron@buffalo.edu 1 Department of Biochemistry, State University of New York at ... annotation, and the ability to extract and u se information stored in genome databases, is an essential part of genomic and bioinformatic analysis [1-4]. While now primarily a basic research tool, analysis...

Ngày tải lên: 10/08/2014, 09:22

... state of the observing systems and integration of effective monitoring of disasters, development of predictions systems, integration and analysis of geo-information Recognising the importance of ... Department of Earth Systems Analysis, International Institute for Geonformation Science and Earth Observation (ITC), Enschede, The Netherlands, kerle@itc.nl Gengsheng Liang: Department of Geodesy and ... 263 graphical information systems influences the usefulness of the tool and the ease of use could not be concluded The speed of the system was measured for zooming and panning of a map Users who...

Ngày tải lên: 31/10/2018, 20:21

... those obtained for the other truncated Ptas. Table 1. Kinetic parameters for the forward reaction (acetyl-CoA-forming) and reverse reaction (acetyl phosphate-forming) of E. coli Pta and truncated ... properties of the recombinant E. coli Pta and Pta-F3 in the acetyl-CoA (Ac-CoA)-forming or acetyl phosphate (Ac-P)-forming directions. (A) The activities of Pta and Pta-F3 in the forward and reverse ... homo- geneity, and the molecular mass of each of them, assessed by SDS ⁄ PAGE, was in agreement with that predicted from the protein constructs, i.e. 36 kDa for Pta-F1, 38 kDa for Pta-F2, and 51 kDa for...

Ngày tải lên: 06/03/2014, 11:20

... target for development of new drug molecules for the treatment of cancer Marine macroalgae, commonly known as seaweeds are rich source of bioactive compounds and produce a wide range of secondary ... non-mutagenic and lack of CYP2D6 inhibition Among the bioactive compounds screened, compound and were found to be promising and it would be a valuable lead candidate for the further development of drugs ... drug-likeness and physicochemical properties using The drug likeness score of the bioactive compounds from S marginatum are given in table All the compounds accepted Lipinski’s rule of and showed...

Ngày tải lên: 15/01/2020, 05:28

... 1. Acquired manufacturing? ?technologies? ?and? ?skills entirely? ?new? ? 1. Upgraded current knowledge? ?and? ?skills? ?for? ?familiar  products? ?and? ?technologies?   to the firm?   2. Learned product development skills? ?and? ?processes (such as  ... Valeria Mininno and Paolo Neirotti: How to Measure the ET-ET Construct for Ambidexterity Comparative Analysis of Measures and New Measurement Proposal 4. An alternative measure? ?for? ?the OA construct  ... Turbullence,  R&D  Sp pending  (log))  and? ?Firm Size (log g).    Tables  3  and? ? 4  show  R  ssquare,  stand dardized  and d  v and? ? tthe  other  sta atistics  of? ? thee  unsttandardized  values,  regrression modell. The findingss report that tthe BD modell ...

Ngày tải lên: 04/12/2022, 10:36

... appropriate for the qualitative and quantitative confirmation of results for many of the parameters listed above, using the extract produced by this method 1.3 This method provides for both high performance ... concentration levels for each parameter of interest by adding volumes of one or more stock standards to a volumetric flask and diluting to volume with acetonitrile One of the external standards should ... METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER METHOD 610—POLYNUCLEAR AROMATIC HYDROCARBONS Scope and Application 1.1 This method covers the determination of certain...

Ngày tải lên: 14/02/2014, 03:20

... METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER METHOD 603—ACROLEIN AND ACRYLONITRILE Scope and Application 1.1 This method covers the determination of acrolein and acrylonitrile ... chemical analysis Additional references to laboratory safety are available and have been identified4,6 for the information of the analyst Apparatus and Materials 5.1 Sampling equipment, for discrete ... distilled water, and then dry it in an oven at 105°C between analyses The trap and other parts of the system are also subject to contamination, therefore, frequent bakeout and purging of the entire...

Ngày tải lên: 14/02/2014, 03:20

... The addition of 10 µL of this solution of mL of sample or standard is equivalent to a concentration of 30 µg/L of each surrogate standard 6.8 BFB Standard—Prepare a 25 µg/mL solution of BFB in methanol ... 51, and 86 101 103 96 61 and 98 63 65, 83, 85, 98, and 100 96 61 and 98 83 85 98 62, 64, and 100 97 99, 117, and 119 117 119 and 121 127 83, 85, and 129 112 63, 65, and 114 75 77 130 95, 97, and ... and 206 97 83, 85, 99, 132, and 134 75 77 106 63 and 65 173 171, 175, 250, 252, 254, and 256 168 83, 85, 131, 133, and 166 164 129, 131, and 166 92 91 112 114 106 91 146 148 and 113 146 148 and...

Ngày tải lên: 05/03/2014, 21:20

... PART 136 METHODS FOR ORGANIC CHEMICAL ANALYSIS OF MUNICIPAL AND INDUSTRIAL WASTEWATER METHOD 604—PHENOLS Scope and Application 1.1 This method covers the determination of phenol and certain substituted ... the analysis of wastewaters for derivatization products of the parameters listed in the scope (Section 1.1), and was used to develop the method performance statements in Section 14 Guidelines for ... minimum of three concentration levels for each parameter of interest by adding volumes of one or more stock standards to a volumetric flask and diluting to volume with 2-propanol One of the external...

Ngày tải lên: 05/03/2014, 21:20

... previ- ous analysis of these [16] was performed without accu- rate knowledge of the FA-binding site [22], and, in addition, new mutations have recently been identified [27]. On the basis of analysis of ... helices A V and B V at the surface of domain V. Gly621 and Gly617 are in the area of contact with the 1095 and 2473 regions of 23S RNA. The two helices are facing the ribosome, and the four-stranded ... surface of EF-G and forms part of the FA-binding site, it points to the opposite direction in our structure, interacting with Glu93 in helix B G and Tyr126 in helix C G in the core of the domain, and...

Ngày tải lên: 06/03/2014, 22:21

... concentrations of these toxic compounds 4.3 Exposure to chloroform should be minimized by performing all extractions and extract concentrations in a hood or other well-ventilated area Apparatus and Materials ... effective in the analysis of wastewaters for the parameters listed in the scope (Section 1.1), and was used to develop the method performance statements in Section 14 Guidelines for the use of alternate ... concentration levels for each parameter of interest by adding volumes of one or more stock standards to a volumetric flask and diluting to volume with mobile phase One of the external standards should...

Ngày tải lên: 14/03/2014, 20:20

... chemical analysis Additional references to laboratory safety are available and have been identified4-6 for the information of the analyst Apparatus and Materials 5.1 Sampling equipment, for discrete ... concentration levels for each parameter of interest by adding volumes of one or more stock standards to a volumetric flask and diluting to volume with hexane One of the external standards should be ... responsible for maintaining a current awareness file of OSHA regulations regarding the safe handling of the chemicals specified in this method A reference file of material data handling sheets...

Ngày tải lên: 14/03/2014, 20:20

... Cùng năm đó, Robert phát khe hở eo tiến hành mổ xác bn để nghiên cứu giải phẫu cột sống Năm 1858, Landl xác định nguyên nhân trượt liên tục cung sau vùng hai mấu khớp (khuyết eo đốt sống) Sau đó, ... tới năm 1930, Junghanns công bố nghiên cứu TĐS tổn thương eo, sau gọi TĐS thoái hoá [2] Năm 1955, Newman đưa phân loại TĐS làm loại, tới năm 1976, Wiltse tổng hợp đưa bảng phân loại chia TĐS thành ... sống Từ năm 1895, việc Roentgen tìm X quang tạo bước đột phá việc chẩn đoán TĐS Tiếp sau đó, Dandy tiến hàng chụp bao rễ thần kinh (1919), đặc biệt với đời chụp cắt lớp vi tính (Hounsfield -...

Ngày tải lên: 11/12/2015, 15:06

... due to the large area of bone graft and plentiful vascularization Body of the veterbra is close to the movement axis of the the spine, takes charge for 80% of affected forces to the body So, ... effect of pedicular fixation and interbody fusion method in the treatment of lumbar spondylolisthesis The eventful traits of the thesis Lumbar spondylolisthesis is one of the most common cause of ... Spondylolisthesis is the abnormal forward translation of veterbra together with pedicles, transverve processes and superior facets This is one of the most common cause of low back pain and also a harmful influence...

Ngày tải lên: 14/12/2015, 11:31

... ứng dụng kỹ thuật kinh điển nh: Daniel C Moore [48], [49] [50]; Donal E, Hale E [53]; Alffred Lee and R.S Atkinson [32]; Macitosh [75]; Ejnar Erikson cộng [56] Kỹ thuật đợc tiến hành nh sau: - T ... giác chủ quan bệnh nhân qua phẫu thuật, sở đánh giá mức độ vô cảm Bromage (1967) (Bromage Scale for Analgesia) chia thành độ - Tê tốt: Bệnh nhân hoàn toàn cảm giác đau phẫu thuật - Tê khá: Tê...

Ngày tải lên: 07/11/2012, 11:50

... ứng dụng kỹ thuật kinh điển nh: Daniel C Moore [48], [49] [50]; Donal E, Hale E [53]; Alffred Lee and R.S Atkinson [32]; Macitosh [75]; Ejnar Erikson cộng [56] Kỹ thuật đợc tiến hành nh sau: - T ... giác chủ quan bệnh nhân qua phẫu thuật, sở đánh giá mức độ vô cảm Bromage (1967) (Bromage Scale for Analgesia) chia thành độ - Tê tốt: Bệnh nhân hoàn toàn cảm giác đau phẫu thuật - Tê khá: Tê...

Ngày tải lên: 19/03/2013, 15:08

... kt hp an thn propofol TCI (85,25%) S dng propofol TCI vi nng ớch 1,52 0,11 àg/ml (1,3 - 1,8 àg/ml) bo m an thn cho bnh nhõn mc n im theo OAA/S phu thut - Kt hp an thn TCI propofol vi gõy tờ ... phi khụng cú tỏc dng gim au Chớnh vỡ vy, nghiờn cu s dng propofol TCI an thn cho bnh nhõn Khi gõy tờ t hiu qu gim au thỡ dựng propofol an thn, t Ce t 1g/ml, iu chnh 0,2 g/ml sau khong thi gian ... nhn bnh nhõn c an thn bng propofol TCI nghiờn cu KT LUN Qua nghiờn cu gõy tờ ỏm ri thn kinh c sõu hai bờn cú h tr ca mỏy kớch thớch thn kinh ngoi vi kt hp an thn propofol TCI cho 61 bnh nhõn phu...

Ngày tải lên: 12/07/2014, 13:35