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Malayalam Noun and Verb Morphological Analyzer: a Simple Approach
Malayalam Noun and Verb Morphological Analyzer: A Simple Approach Nimal J Valath1, Narsheedha Beegum2 M.Tech Student1, M.Tech Student2 ABSTRACT Malayalam is a language of the Dravidian family and is one of This paper discusses the methods involved in the the four major languages of this family with a rich literary development of a Simple Malayalam Verb and Noun tradition. It is very close to Tamil, one of the major languages of Morphological Analyzer. Since in Malayalam, words can be the same family. This was due to the extensive cultural derived from a root word, a purely dictionary based approach synthesis that took place between the speakers of the two for Morphological analysis is not practical. Hence, a ‘Rule-cum- languages. The origin of Malayalam as a distinct language may Dictionary’ based approach is followed along with the Suffix be traced to the last quarter of 9th Century A.D. Throughout its Stripping concept. The grammatical behavior of the language, gradual evolution Malayalam has been influenced by the the formation of words with multiple suffixes and the various circumstances prevailed on different periods. preparation of the language are dealt with here, with examples of noun and verb forms in detail. Mainly Malayalam was influenced by Sanskrit and Prakrit brought into Kerala by Brahmins. After the 11th century a unique mixture of the native languages of Kerala and Sanskrit Keywords known as Manipravalam served as the medium of literary Morphological Analyzer, Malayalam, Suffix stripping, expression. Malayalam absorbed a lot from Sanskrit, not only in Transliteration, Retransliteration, Verb and Noun, Sandhi rules, the lexical level, but also in the phonemic, morphemic and Word Formation, Noun Cases, Algorithm. -
Unsupervised Separation of Transliterable and Native Words For
Unsupervised Separation of Transliterable and Native Words for Malayalam Deepak P Queen’s University Belfast, UK [email protected] Abstract names that need to be transliterated than translated to correlate with English text. On a manual analy- Differentiating intrinsic language words sis of a news article dataset, we found that translit- from transliterable words is a key step erated words and proper nouns each form 10-12% aiding text processing tasks involving dif- of all distinct words. It is useful to transliterate ferent natural languages. We consider such words for scenarios that involve processing the problem of unsupervised separation of Malayalam text in the company of English text; transliterable words from native words for this will avoid them being treated as separate index text in Malayalam language. Outlining a terms (wrt their transliteration) in a multi-lingual key observation on the diversity of char- retrieval engine, and help a statistical translation acters beyond the word stem, we develop system to make use of the link to improve effec- an optimization method to score words tiveness. In this context, it ia notable that there has based on their nativeness. Our method re- been recent interest in devising specialized meth- lies on the usage of probability distribu- ods to translate words that fall outside the core vo- tions over character n-grams that are re- cabulary (Tsvetkov and Dyer, 2015). fined in step with the nativeness scorings In this paper, we consider the problem of sepa- in an iterative optimization formulation. rating out such transliterable words from the other Using an empirical evaluation, we illus- words within an unlabeled dataset; we refer to trate that our method, DTIM, provides sig- the latter as “native” words. -
UNITED STATES PATENT OFFICE 2,636,042 WATER-SOLUBLE HORMONE COMPOUNDS Ralph Salkin, Jackson Heights, N.Y., Assignor to S
Patented Apr. 21, 1953 2,636,042 UNITED STATES PATENT OFFICE 2,636,042 WATER-SOLUBLE HORMONE COMPOUNDS Ralph Salkin, Jackson Heights, N.Y., assignor to S. B. Penick and Company, New York, N. Y., a corporation of Delaware No Drawing. Application July 8, 1949 Serial No. 103,759 5 Claims. (C. 260-39.4) 1. 2 My invention relates to an improvement in the ether, and the sulfate is then Salted out of the manufacture of water-soluble compounds of the aqueous solution by the addition of a, caustic estrane series, and in particular it is concerned solution under cooling. The liberated hormone With an improvement in the synthesis of alkali sulfate is extracted into a suitable Solvent, for and alkaline-earth metal salts of the sulfates of 5 instance butanol, pyridine being preferred how the estranes. ever. The hormone sulfate solution is exhaus The estranes to which my invention applies are tively extracted with ether to remove the solvent. steroids having a free hydroxyl group in the The resultant semicrystalline product is recrys 3-position and a hydroxy or keto group in the tallized from a dilute monohydric alcohol. Or 17-position of the molecule, such as estrone, O Water to give the pure sterol.ester. equilin, equilenin, estradiol and similar com In order to get pure ester Salts, I have found pounds. it essential that the tertiary amine-sulfur trioxide These products which are commonly known as adduct be absolutely pure when being reacted With conjugated estrogens can be obtained from nat the hormones. Improved yields and more readily ural sources such as the urine of pregnant mares purifiable light colored granular products result, or of stallions. -
Children's Possessive Structures
Ling 404 Lecture Notes No.4 Synchronic Clines in Morphology Productivity Clines: Japanese, Navajo, Mohawk, Eskimo, vs. Spanish, Italian, English One of the questions will be asking throughout is where do the above languages fall on the productivity cline and why (providing data and analyses.) One question to ask is to what degree is the lexicon ‘morpheme-based’ or ‘word-based’ (Chapters 3-4)? ‘Working Memory’ is implicated in the choice. For instance, are speakers all equally productive with their morpheme-units as tucked within word, a [-Fusion] language, or do some languages rather require morphemes within words to be memorized and incorporated as part of the lexical item, a [+Fusion] language? In addition to labeling languages as [+]Synthetic (as in Turkish, Hungarian, Spanish, English, Mohawk) or [-]Synthetic (as in Chinese, Vietnamese), the following data provide an additional exercise in teasing out what might be going on in languages which carry such a large number of embedded morphemes. Question leading to mid-term: How might such morphemes in Polysynthetic-type languages be stored and processed? The notion of [+/-Fusion] will be the central question here as we move to our mid-term material of this class. Typically, agglutinative morphemes are considered to be ‘loosely’ structured in that one morpheme has a one-to-one meaning. But the question might rather be how productive are the morphemes in isolation—viz., do they allow for movement? The question of movement, both at the word-level and at the morpheme-level will allow us to determine the nature of +/- productivity and +/- fusion. Regarding Movement. -
The Absorption of Radioactive Sulphur -Labelled in Patients with Intestinal
TITLE: The absorption of Radioactive Sulphur-labelled Thiamine Hydrochloride in Control Subjects and in Patients with Intestinal Malabsorption. SHORT TITI : A test for the Absorption of Thiamine in Man AUTHOR: A.D. THOMSON DEPARTMENT: From the University Department of Therapeutics, Royal Infirmary, Edinburgh. A Test for the Absorption of Thiamine in Man SUMMARY: (1) A method is described for investigating vitamin B1 absorption in man by measuring the urinary radioactivity during the 24 hours following an oral dose of radioactive 35S- thiamine which is given along with a parentergl injection of non-radioactive thiamine hydrochloride. (2) Analysis of small intestinal juice and characterisation of radioactive material in the urine indicate that the urine contains radioactive thiamine which was unchanged prior to absorption. (3) In control subjects, the major period of thiamine absorption occurred within the first 2 hours and practically all of the oral dose absorbed was excreted during the first 211. hours. (4) Eight patients with untreated primary malabsorptive disease (idiopathic steatorrhoea) showed a mean urinary excretion of radioactive thiamine sig- nificantly less than in the control group. The rate of excretion was markedly reduced but the period of maximal excretion occurred at approximately the same time as in control subjects. Thirteen patients with treated primary ma3absorp- tive disease showed no significant difference from the control group. (5) Ten patients who had undergone gastric surgery and two with resection of the terminal ileum excreted amounts which did not differ from the control group. Normal results were also found in four patients with pernicious anaemia. A Test for the Absorption of Thiamine in Man INTRODUCTION : Disease of the small intestine may cause impaired absorption of certain water -soluble vitamins. -
Abstracts of the Psychonomic Society — Volume 13 — November 2008 49Th Annual Meeting — November 13–16, 2008 — Chicago, Illinois
Abstracts of the Psychonomic Society — Volume 13 — November 2008 49th Annual Meeting — November 13–16, 2008 — Chicago, Illinois Papers 1–7 Friday Morning Motion and Attention motion is mixed. In the present study, target stimuli were associated with Grand Ballroom, Friday Morning, 8:00–9:40 objects that loomed, receded or remained static in arrays of varying size. Results showed that both motion types received equal prioritization, as Chaired by Gary Chon-Wen Shyi, National Chung Cheng University evidenced by their parallel search slopes, yet looming targets benefited from an overall reduction in reaction time (RT). Further investigation 8:00–8:15 (1) ruled out possible confounding explanations for this RT advantage, Differential Distribution of Visuospatial Attention in Tracking Mul- while a perceptual measure of performance confirmed the attentional tiple Moving Objects. GARY C.-W. SHYI & SUNG-EN CHIEN, Na- equivalence of the two motion types. Taken together, these results in- tional Chung Cheng University—Paying attention to a relatively com- dicate that looming and receding objects receive equal prioritization plex object has shown evidence for differential distribution within the during attentional selection. However, it may be that postattentional pro- object. Here, we explored differential distribution of attention when mul- cesses, possibly those involved in motor preparation, facilitate responses tiple moving objects were visually tracked. In Experiments 1 and 2, we to looming motion. not only replicated the findings reported by Alvarez and Scholl (2005), demonstrating both attentional concentration and attentional amplifica- 9:20–9:35 (5) tion, but also generalized the effects to uniformed circular shapes. In Individual Differences in Voluntary Visual Attention. -
Labeling and Synthesis of Estrogens and Their Metabolites
Labeling and Synthesis of Estrogens and Their Metabolites Paula Kiuru University of Helsinki Faculty of Science Department of Chemistry Laboratory of Organic Chemistry P.O. Box 55, 00014 University of Helsinki, Finland ACADEMIC DISSERTATION To be presented with the permission of the Faculty of Science of the University of Helsinki, for public criticism in Auditorium A110 of the Department of Chemistry, A. I. Virtasen Aukio 1, Helsinki, on June 18th, 2005 at 12 o'clock noon Helsinki 2005 ISBN 952-91-8812-9 (paperback) ISBN 952-10-2507-7 (PDF) Helsinki 2005 Valopaino Oy. 1 ABSTRACT 3 ACKNOWLEDGMENTS 4 LIST OF ORIGINAL PUBLICATIONS 5 LIST OF ABBREVIATIONS 6 1. INTRODUCTION 7 1.1 Nomenclature of estrogens 8 1.2 Estrogen biosynthesis 10 1.3 Estrogen metabolism and cancer 10 1.3.1 Estrogen metabolism 11 1.3.2 Ratio of 2-hydroxylation and 16α-hydroxylation 12 1.3.3 4-Hydroxyestrogens and cancer 12 1.3.4 2-Methoxyestradiol 13 1.4 Structural and quantitative analysis of estrogens 13 1.4.1 Structural elucidation 13 1.4.2 Analytical techniques 15 1.4.2.1 GC/MS 16 1.4.2.2 LC/MS 17 1.4.2.3 Immunoassays 18 1.4.3 Deuterium labeled internal standards for GC/MS and LC/MS 19 1.4.4 Isotopic purity 20 1.5 Labeling of estrogens with isotopes of hydrogen 20 1.5.1 Deuterium-labeling 21 1.5.1.1 Mineral acid catalysts 21 1.5.1.2 CF3COOD as deuterating reagent 22 1.5.1.3 Base-catalyzed deuterations 24 1.5.1.4 Transition metal-catalyzed deuterations 25 1.5.1.5 Deuteration without catalyst 27 1.5.1.6 Halogen-deuterium exchange 27 1.5.1.7 Multistep labelings 28 1.5.1.8 Summary of deuterations 30 1.5.2 Enhancement of deuteration 30 1.5.2.1 Microwave irradiation 30 1.5.2.2 Ultrasound 31 1.5.3 Tritium labeling 32 1.6 Deuteration estrogen fatty acid esters 34 1.7 Synthesis of 2-methoxyestradiol 35 1.7.1 Halogenation 35 1.7.2 Nitration of estrogens 37 1.7.3 Formylation 38 1.7.4 Fries rearrangement 39 1.7.5 Other syntheses of 2-methoxyestradiol 39 1.7.6 Synthesis of 4-methoxyestrone 40 1.8 Synthesis of 2- and 4-hydroxyestrogens 41 2. -
REVIEW Steroid Sulfatase Inhibitors for Estrogen
99 REVIEW Steroid sulfatase inhibitors for estrogen- and androgen-dependent cancers Atul Purohit and Paul A Foster1 Oncology Drug Discovery Group, Section of Investigative Medicine, Imperial College London, Hammersmith Hospital, London W12 0NN, UK 1School of Clinical and Experimental Medicine, Centre for Endocrinology, Diabetes and Metabolism, University of Birmingham, Birmingham B15 2TT, UK (Correspondence should be addressed to P A Foster; Email: [email protected]) Abstract Estrogens and androgens are instrumental in the maturation of in vivo and where we currently stand in regards to clinical trials many hormone-dependent cancers. Consequently,the enzymes for these drugs. STS inhibitors are likely to play an important involved in their synthesis are cancer therapy targets. One such future role in the treatment of hormone-dependent cancers. enzyme, steroid sulfatase (STS), hydrolyses estrone sulfate, Novel in vivo models have been developed that allow pre-clinical and dehydroepiandrosterone sulfate to estrone and dehydroe- testing of inhibitors and the identification of lead clinical piandrosterone respectively. These are the precursors to the candidates. Phase I/II clinical trials in postmenopausal women formation of biologically active estradiol and androstenediol. with breast cancer have been completed and other trials in This review focuses on three aspects of STS inhibitors: patients with hormone-dependent prostate and endometrial 1) chemical development, 2) biological activity, and 3) clinical cancer are currently active. Potent STS inhibitors should trials. The aim is to discuss the importance of estrogens and become therapeutically valuable in hormone-dependent androgens in many cancers, the developmental history of STS cancers and other non-oncological conditions. -
University Microfilms, Inc., Ann Arbor, Michigan ADRENOCORTICAL STEROID PROFILE IN
This dissertation has been Mic 61-2820 microfilmed exactly as received BESCH, Paige Keith. ADRENOCORTICAL STEROID PROFILE IN THE HYPERTENSIVE DOG. The Ohio State University, Ph.D., 1961 Chemistry, biological University Microfilms, Inc., Ann Arbor, Michigan ADRENOCORTICAL STEROID PROFILE IN THE HYPERTENSIVE DOG DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of the Ohio State University By Paige Keith Besch, B. S., M. S. The Ohio State University 1961 Approved by Katharine A. Brownell Department of Physiology DEDICATION This work is dedicated to my wife, Dr. Norma F. Besch. After having completed her graduate training, she was once again subjected to almost social isolation by the number of hours I spent away from home. It is with sincerest appreciation for her continual encouragement that I dedi cate this to her. ACKNOWLEDGMENTS I wish to acknowledge the assistance and encourage ment of my Professor, Doctor Katharine A. Brownell. Equally important to the development of this project are the experience and information obtained through the association with Doctor Frank A. Hartman, who over the years has, along with Doctor Brownell, devoted his life to the development of many of the techniques used in this study. It is also with extreme sincerity that I wish to ac knowledge the assistance of Mr. David J. Watson. He has never complained when asked to work long hours at night or weekends. Our association has been a fruitful one. I also wish to acknowledge the encouragement of my former Professor, employer and good friend, Doctor Joseph W. -
Benfotiamine, a Synthetic S-Acyl Thiamine Derivative, Has Different
BMC Pharmacology BioMed Central Research article Open Access Benfotiamine, a synthetic S-acyl thiamine derivative, has different mechanisms of action and a different pharmacological profile than lipid-soluble thiamine disulfide derivatives Marie-Laure Volvert1, Sandrine Seyen1, Marie Piette2, Brigitte Evrard2, Marjorie Gangolf1, Jean-Christophe Plumier1 and Lucien Bettendorff*1 Address: 1Center for Cellular and Molecular Neurobiology, University of Liège, Avenue de l'Hôpital, 1, 4000 Liège, Belgium and 2Laboratory of Pharmaceutical Technology, Department of Pharmacy, University of Liège, Avenue de l'Hôpital, 1, 4000 Liège, Belgium Email: Marie-Laure Volvert - [email protected]; Sandrine Seyen - [email protected]; Marie Piette - [email protected]; Brigitte Evrard - [email protected]; Marjorie Gangolf - [email protected]; Jean- Christophe Plumier - [email protected]; Lucien Bettendorff* - [email protected] * Corresponding author Published: 12 June 2008 Received: 19 December 2007 Accepted: 12 June 2008 BMC Pharmacology 2008, 8:10 doi:10.1186/1471-2210-8-10 This article is available from: http://www.biomedcentral.com/1471-2210/8/10 © 2008 Volvert et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Background: Lipid-soluble thiamine precursors have a much higher bioavailability than genuine thiamine and therefore are more suitable for therapeutic purposes. Benfotiamine (S-benzoylthiamine O- monophosphate), an amphiphilic S-acyl thiamine derivative, prevents the progression of diabetic complications, probably by increasing tissue levels of thiamine diphosphate and so enhancing transketolase activity. -
Abstracts (PDF)
Abstracts of the Psychonomic Society — Volume 12 — November 2007 48th Annual Meeting — November 15–18, 2007 — Long Beach, California Papers 1–7 Friday Morning Implicit Memory is a widely used experimental procedure that has been modeled in Regency ABC, Friday Morning, 8:00–9:20 order to obtain ostensibly separate measures for explicit memory and implicit memory. Existing models are critiqued here and a new con- Chaired by Neil W. Mulligan fidence process-dissociation (CPD) model is developed for a modi- University of North Carolina, Chapel Hill fied process-dissociation task that uses confidence ratings in con- junction with the usual old/new recognition response. With the new 8:00–8:15 (1) model there are several direct tests for the key assumptions of the stan- Attention and Auditory Implicit Memory. NEIL W. MULLIGAN, dard models for this task. Experimental results are reported here that University of North Carolina, Chapel Hill—Traditional theorizing are contrary to the critical assumptions of the earlier models for the stresses the importance of attentional state during encoding for later process-dissociation task. These results cast doubt on the suitability memory, based primarily on research with explicit memory. Recent re- of the process-dissociation procedure itself for obtaining separate search has investigated the role of attention in implicit memory in the measures for implicit and explicit memory. visual modality. The present experiments examined the effect of divided attention on auditory implicit memory, using auditory perceptual iden- Attentional Selection and Priming tification, word-stem completion, and word-fragment completion. Par- Regency DEFH, Friday Morning, 8:00–10:00 ticipants heard study words under full attention conditions or while si- multaneously carrying out a distractor task. -
Processing Distinctions Between Stems and Affixes: Evidence from a Non-Fluent Aphasic Patient*
cognition, 36 (1990) 129-153 Processing distinctions between stems and affixes: Evidence from a non-fluent aphasic patient* LORRAINE K. NLER SUSANBEHRENS HOWARD COBB University of Cambridge WlLLlAM MARSLEN-WILSON MRC Applied Psychology Unit, Cambridge Received June 2, 1989, final revision accepted February 19, 1990 Abstract Tyler, L.K., Behrens, S., Cobb, H., and Marsten-Witson, W., 1990. Processing distinctions between stems and affixes: Evidence from a non-fluent aphasic patient. Cognition, 36: 129-153. In this paper, we study the ability of a non-fluent aphasic patient, BX, to comprehend morphologically complex words when they appear in utterance contexts. Wefirst establish that he is insensitive to the contextual appropriateness of both derived and inflected words. In a further experiment we show that he has no difficulty processing the stems of complex words and conclude th-zt his problem is with the bound morphemes themselves. We then ask whether this problem is due to his inability to access either the phonological form of a morphologically complex word or its semantic andlor syntactic content. We find that only the access of semantic and syntactic content is impaired. We conclude from these six studies that: (a) BN presents a counter-example to the claim that non-fluent patients have particular dificulty with those aspects of morphology which have a syntactic function; (b) BN processes both derived and inflected words by mapping the sensory input onto the entire full-form of a complex word, but the semantic and syntactic content of the stem alone is accessed and integrated into the context. The semantic and syntactic implica- tions of the suffix are never evaluated.