作者: Cuisine 時(shí)間: 2025-3-21 21:41
Satyajit D. Sarker,Zahid Latif,Alexander I. Graylly being 7 or 10) of what remains, to the second 2 units and ./. of what remains, etc. In the end all sons get the same, and nothing remains. The earliest known occurrence is in Fibonacci’s ., which also contains a number of much more sophisticated versions, together with a partial algebraic soluti作者: BOOM 時(shí)間: 2025-3-22 00:55 作者: Arteriography 時(shí)間: 2025-3-22 07:32
Lutfun Nahar,Satyajit D. Sarkernsive reference.The proposed exercises and carefully drafted.This book, the first of two volumes, contains over 250 selected exercises in Algebra which have featured as exam questions for the Arithmetic course taught by the authors at the University of Pisa. Each exercise is presented together with 作者: 燦爛 時(shí)間: 2025-3-22 10:32
Simon Gibbonsd style.Comprehensive review of the relevant theory readily This book, the second of two volumes, contains approximately 350 exercises in Algebra which have featured exam questions for the Algebraic Structure and Algebra I courses taught by the authors at the University of Pisa. Each exercise is pre作者: Commonwealth 時(shí)間: 2025-3-22 15:07
Raymond G. Reid,Satyajit D. Sarkerd style.Comprehensive review of the relevant theory readily This book, the second of two volumes, contains approximately 350 exercises in Algebra which have featured exam questions for the Algebraic Structure and Algebra I courses taught by the authors at the University of Pisa. Each exercise is pre作者: 送秋波 時(shí)間: 2025-3-22 17:14
David G. Durhamd style.Comprehensive review of the relevant theory readily This book, the second of two volumes, contains approximately 350 exercises in Algebra which have featured exam questions for the Algebraic Structure and Algebra I courses taught by the authors at the University of Pisa. Each exercise is pre作者: 使長胖 時(shí)間: 2025-3-22 23:58 作者: 迷住 時(shí)間: 2025-3-23 03:03
Hideaki Otsukahe reader to investigate the problems in depth.Offers an ideThis book presents more than 300 exercises, with guided solutions, on topics that span both the experimental and the theoretical aspects of particle physics. The exercises are organized by subject, covering kinematics, interactions of parti作者: 委托 時(shí)間: 2025-3-23 06:28
Alastair J. Florence,Norman Shankland,Andrea Johnstonmputational Methods in Experimental Economics (CMEE) conference, this bookfeatures papers containing research and analysis of economic experimentsconcerning research in such areas as management science, decision theory, gametheory, marketing and political science. The goal is to present possibilitie作者: 兩種語言 時(shí)間: 2025-3-23 13:35 作者: maroon 時(shí)間: 2025-3-23 14:02
William P. Jones,A. Douglas Kinghorn theory, game theory, marketing and political science.Presen.Theaim of this volume is to provide deep insights and the latest scientificdevelopments and trends in experimental economics. Derived from the 2015Computational Methods in Experimental Economics (CMEE) conference, this bookfeatures papers 作者: 對(duì)待 時(shí)間: 2025-3-23 20:13
Wael E. Houssen,Marcel Jaspars theory, game theory, marketing and political science.Presen.Theaim of this volume is to provide deep insights and the latest scientificdevelopments and trends in experimental economics. Derived from the 2015Computational Methods in Experimental Economics (CMEE) conference, this bookfeatures papers 作者: forebear 時(shí)間: 2025-3-24 01:55
Natural Product Isolation,eas of separation science, spectroscopic techniques, and microplate-based ultrasensitive . assays, natural product research is enjoying renewed attention for providing novel and interesting chemical scaffolds. The various available hyphenated techniques, e.g., GC-MS, LC-PDA, LC-MS, LC-FTIR, LC-NMR, 作者: Anthology 時(shí)間: 2025-3-24 04:17 作者: hemoglobin 時(shí)間: 2025-3-24 07:18 作者: 庇護(hù) 時(shí)間: 2025-3-24 11:55
An Introduction to Planar Chromatography,has use also in the biological evaluation of organic compounds, particularly in the areas of antimicrobial and antioxidant metabolites, and for the determination of acetylcholine esterase inhibitors that are utilized in the treatment of Alzheimer’s disease. This chapter deals with the basic principl作者: BUMP 時(shí)間: 2025-3-24 17:07
Isolation of Natural Products by Low-Pressure Column Chromatography,d size-exclusion processes involved in the LPLC is presented. Different types of stationary phases used in both adsorption and size-exclusion LPLC are described along with examples of each type used in LPLC. Operational parameters are also discussed in detail in relation to column packing (both wet 作者: Restenosis 時(shí)間: 2025-3-24 21:21
Isolation by Ion-Exchange Methods,cess is the reversible binding of either a cationic or an anionic molecule to an oppositely charged insoluble resin matrix by displacement of a counterion. Resins may be characterized by their matrix structure, and the “strength” of the exchanger is dependent upon the p.. of the ionized group. Choic作者: 清醒 時(shí)間: 2025-3-25 01:57
Separation by High-Speed Countercurrent Chromatography, sensitive (unstable) compounds and virtually allows quantitative recovery of the load sample. Different instruments use several means of retaining a stationary liquid phase. The solvent system can be chosen to optimize the separatory power and the number of systems available is limitless. Several e作者: Popcorn 時(shí)間: 2025-3-25 04:56 作者: FLEET 時(shí)間: 2025-3-25 08:10
Hyphenated Techniques,provements in hyphenated analytical methods over the last two decades have significantly broadened their applications in the analysis of biomaterials, especially natural products. In this chapter, recent advances in the applications of various hyphenated techniques, e.g., GC-MS, LC-PDA, LC-MS, LC-FT作者: BUOY 時(shí)間: 2025-3-25 15:32 作者: Aromatic 時(shí)間: 2025-3-25 16:31
Crystallization in Final Stages of Purification,as a purification step in its own right, or to produce crystals for molecular structure determination by single-crystal or powder X-ray diffraction. Both aspects are discussed, with particular emphasis on growing crystals for structure determination in natural product chemistry. The processes detail作者: Neutral-Spine 時(shí)間: 2025-3-25 23:52
Dereplication and Partial Identification of Compounds, are being driven by the need to identify novel pharmaceutical and agrochemical lead compounds rapidly and effectively from complex natural matrices, while avoiding spending time or money on the re-isolation and re-identification of known natural products. As many commercial pharmaceuticals and agro作者: SEMI 時(shí)間: 2025-3-26 01:34
Extraction of Plant Secondary Metabolites,tions presents specific challenges that must be addressed throughout the solvent extraction process. Successful extraction begins with careful selection and preparation of plant samples, and thorough review of the appropriate literature for indications of which protocols are suitable for a particula作者: 披肩 時(shí)間: 2025-3-26 05:44
Isolation of Marine Natural Products,trial and academic groups are accessing this source using advanced technology platforms. The purpose of this chapter is to offer some practical guidance in the process of extraction and isolation of marine natural products. Special attention is given to the isolation procedures adapted to the physic作者: CORD 時(shí)間: 2025-3-26 08:34
Isolation of Microbial Natural Products,c components produced can be distributed between both the solid and liquid phases. A major challenge facing the practitioner attempting to isolate a microbial natural product, where the organic component is extracellular and has been exuded into the medium, is the separation of the desired organic c作者: Encapsulate 時(shí)間: 2025-3-26 13:28
Purification of Water-Soluble Natural Products, researchers. A general approach to extract and fractionate water-soluble compounds from biological materials and fluids including seawater is presented in this chapter. Some important techniques and special caution needed to deal with water-soluble compounds are also included. The chapter also pres作者: 公式 時(shí)間: 2025-3-26 20:41 作者: brother 時(shí)間: 2025-3-26 22:03
Follow-Up of Natural Product Isolation,ing, conclusive structure determination, structure modification for SAR studies, ecological or chemotaxonomic investigations, etc. Apart from conventional synthetic chemistry approaches, a number of other systems, which have been established in other chapters of this book, can be utilised in order t作者: Rotator-Cuff 時(shí)間: 2025-3-27 01:12
Natural Product Isolation,s chapter presents, with practical examples, a general overview of the processes involved in natural product research, starting from extraction to determination of the structures of purified products and their biological activity.作者: 擴(kuò)音器 時(shí)間: 2025-3-27 08:28 作者: colostrum 時(shí)間: 2025-3-27 11:25
Extraction of Plant Secondary Metabolites,asis on common problems encountered and methods for reducing or eliminating these problems. In addition to generally applicable extraction protocols, methods are suggested for more or less selectively extracting specific classes of compounds, and phytochemical methods are presented for detection of 作者: inventory 時(shí)間: 2025-3-27 15:20
Purification of Water-Soluble Natural Products,(1) the isolation of amesic shellfish poison, domoic acid, from cultured diatom cells, (2) the isolation of tetrodotoxin derivatives from a newt, (3) the isolation of an aminotetrasaccharide from cultured cyanobacterium cells, and (4) isolation of glycosidic polyether antitumor compounds from the cu作者: 不持續(xù)就爆 時(shí)間: 2025-3-27 21:07
Book 20052nd editionnnell died in 1999 soon after completing the first edition. We are indebted to him and hope this new edition pays adequate tribute to his excellent work. The first edition laid down the “ground rules” and established the techniques available at the time. Since its publication in 1998, there have bee作者: Credence 時(shí)間: 2025-3-27 22:37 作者: 小卷發(fā) 時(shí)間: 2025-3-28 03:10
Raymond G. Reid,Satyajit D. Sarkero be applied in solving the proposed exam questions. This volume is aimed at second year students in Mathematics and Computer science.978-3-031-12650-5978-3-031-12651-2Series ISSN 2038-5714 Series E-ISSN 2532-3318 作者: 得罪人 時(shí)間: 2025-3-28 06:45
David G. Durhamo be applied in solving the proposed exam questions. This volume is aimed at second year students in Mathematics and Computer science.978-3-031-12650-5978-3-031-12651-2Series ISSN 2038-5714 Series E-ISSN 2532-3318 作者: 表被動(dòng) 時(shí)間: 2025-3-28 12:41
mathematicians began resurrecting the image of the geometer, yet without emulating him in their own work. Giorgio Valla’s posthumous . from 1501 marks a watershed. Valla drew knowledge of the person as well as his works from Proclus and Pappus, thus integrating person and works. Over the century, a作者: 名次后綴 時(shí)間: 2025-3-28 16:26 作者: 不安 時(shí)間: 2025-3-28 20:39 作者: probate 時(shí)間: 2025-3-28 23:56
Lutfun Nahar,Satyajit D. Sarkernt theory which can be used as a reference for study and revision. A list of preliminary exercises introduces the main techniques to be applied in solving the proposed exam questions. This volume is aimed at first year students in Mathematics and Computer Science..978-3-030-36155-6978-3-030-36156-3Series ISSN 2038-5714 Series E-ISSN 2532-3318 作者: 糾纏 時(shí)間: 2025-3-29 04:36
Alastair J. Florence,Norman Shankland,Andrea Johnstons are used for testing and a better understanding of economic theories.Researchers working in this field use mainly a set of well-established methodsand computer tools that support the experiments. Methods such as artificialintelligence, computer simulation and computer graphics, however, are notrep作者: 失望未來 時(shí)間: 2025-3-29 08:48
Laurence Dinans are used for testing and a better understanding of economic theories.Researchers working in this field use mainly a set of well-established methodsand computer tools that support the experiments. Methods such as artificialintelligence, computer simulation and computer graphics, however, are notrep作者: 肥料 時(shí)間: 2025-3-29 14:57 作者: Gustatory 時(shí)間: 2025-3-29 18:42 作者: 中止 時(shí)間: 2025-3-29 22:09 作者: 山間窄路 時(shí)間: 2025-3-30 02:15 作者: 老巫婆 時(shí)間: 2025-3-30 07:17 作者: CLOWN 時(shí)間: 2025-3-30 12:04
Methods in Biotechnologyhttp://image.papertrans.cn/n/image/661894.jpg作者: Cabinet 時(shí)間: 2025-3-30 16:01
https://doi.org/10.1385/1592599559chromatography; crystal; extraction; natural product作者: prolate 時(shí)間: 2025-3-30 19:46
Satyajit D. Sarker,Zahid Latif,Alexander I. GrayIncludes supplementary material: 作者: Abnormal 時(shí)間: 2025-3-30 23:05
Natural Products Isolation978-1-59259-955-4Series ISSN 1940-6061 Series E-ISSN 1940-607X 作者: discord 時(shí)間: 2025-3-31 02:00 作者: 骨 時(shí)間: 2025-3-31 05:56
Isolation of Natural Products by Low-Pressure Column Chromatography, provided. Sixty-one specific examples of the use of LPLC for the isolation of various natural products, including flavones, coumarins, alkaloids, and triterpenoid saponins from various plants are given. Many of these examples incorporate a combination of adsorption and size-exclusion chromatography to obtain specific compounds.作者: 宮殿般 時(shí)間: 2025-3-31 09:36 作者: 性滿足 時(shí)間: 2025-3-31 16:58
Hyphenated Techniques,-line detection of natural products, chemotaxonomic studies, chemical fingerprinting, quality control of herbal products, dereplication of natural products, and metabolomic studies are discussed with appropriate examples. Particular emphasis is given on the hyphenated techniques that involve liquid chromatography, as the separation tool.作者: vitrectomy 時(shí)間: 2025-3-31 18:37
Purification by Solvent Extraction Using Partition Coefficient,ounds from crude natural product extracts. In this chapter, the generic protocols of this separation technique in the purification of natural compounds, especially phytochemicals of relatively small molecular weights, i.e., in the range of 100–1500 Da, have been outlined.作者: 盟軍 時(shí)間: 2025-3-31 22:17 作者: 智力高 時(shí)間: 2025-4-1 02:02
Book 20052nd editiont in natural products can be traced back thousands of years for their usefulness to humankind, and this continues to the present day. Compounds and extracts derived from the biosphere have found uses in medicine, agriculture, cosmetics, and food in ancient and modern societies around the world. Ther
