Báo cáo khoa học: "A comparative study of Sephadex, glass wool and Percoll separation techniques on sperm quality and IVF results for cryopreserved bovine semen" pptx

... separation techniques on IVF in cryopreserved bovine semen 253Table 3. Effect of glass wool filtration and Percoll separation of spermatozoa on IVF results Spermatozoa treatmentCleavage BlastocystFrequency ... fertilization IVF was performed with sperm samples prepared by each treatment. First, IVF was performed to compare results of IVF among control, Sephadex and glass wool filtration samples. ... Therefore, the aim of this study was to find the most effective method by comparing the efficacy of sperm separation methods (Sephadex, glass wool and Percoll) on sperm quality, such as motility,...

Báo cáo khoa học: "A Comparative Study of Parameter Estimation Methods for Statistical Natural Language Processing" potx

... additional tasks involving conditional sequence models: a Conditional Markov Model (CMM) for part of speech tagging and a Conditional Random Field (CRF) for Chinese word segmentation. Our ... comparison of algorithms for maximum entropy parameter estimation. In HLT. McCallum A, D. Freitag and F. Pereira. 2000. Maximum entropy markov models for information extraction and segmentation. ... w on Sections 2-19 of the Penn Tree-bank, adjusted the regularizer constant  to max-imize the F-Score on Sections 20-21 of the Tree-bank, and evaluated the rerankers on Section 22. The results...

Báo cáo khoa học: "A Comparative Study of Hypothesis Alignment and its Improvement for Machine Translation System Combination" pot

... section. Confusion network construction: confusion network is built from one-to-one word alignment; therefore, we need to normalize the word align-ment before constructing the confusion network. ... of the hypothesis. And we assign the same weights to each system. For selecting the backbone, only the top hypo-thesis from each system is considered as a candi-date for the backbone. Concerning ... alignments, and then continuously add new links between backbone and hypothesis if and only if both of the two words of the new link are un-aligned and this link exists in the union of two word alignments....

Báo cáo khoa học: "A Comparative Study of Reinforcement Learning Techniques on Dialogue Management" pdf

... computation cost grows exponentially on thesize of the lookahead horizon. Also, according toSutton and Barto (1998) and Sutton et al. (2000),better convergence guarantees exist for online al-gorithms ... in section 4we describe our experimental setup and results, insection 5 we discuss those results and in section 6we conclude this study. 2 BackgroundIn order to fully understand the concepts ... Journal on Control and Optimiza-tion, MIT Press, pp 1008–1014.Konstantopoulos S., 2010, An Embodied DialogueSystem with Personality and Emotions, Proceedings of the 2010 Workshop on Companionable...

Báo cáo khoa học: A comparative study of methylglyoxal metabolism in trypanosomatids potx

... themanufacturer’s instructions. The amount of NADH formedwas measured at 340 nm, and the limit of detection for these assays was determined to be 1 lm.Cloning and expression of recombinant TcGLO1in ... with NAD+at 27 °C for 5 min,prior to the initiation of the reaction with l-lactaldehyde.Reactions were monitored at 340 nm for the formation of NADH.Western blot analyses of trypanosomatid ... cultivation of Trypanosoma brucei blood stream forms in amedium containing a low concentration of serumprotein without feeder cell layers. J Parasitol 75,985–989.35 Lanham SM (1968) Separation of...

Báo cáo khoa học: A comparative study of type I and type II tryparedoxin peroxidases in Leishmania major pot

... PAGE and as a dimer following oxidation withperoxide and separation under nonreducing conditions(Fig. 7). In contrast, reduced and oxidized TDPX1show only slightly different mobility and thus ... addition of 50 lm hydroperoxide and TryX concentra-tions were varied between 2 and 10 lm. The consumption of NADPH in the presence of all components except peroxi-dase was measured to be 1% of ... shown).Analysis of both peaks by SDS ⁄ PAGE under nonre-ducing conditions showed both peaks ran as mono-mers. Thus the native monomeric protein can formnoncovalent dimers at high protein concentrations(data...

Báo cáo khoa học: "A Comparative Study of Target Dependency Structures for Statistical Machine Translation" ppt

... Meeting of the Association for Computational Linguistics, pages 100–104,Jeju, Republic of Korea, 8-14 July 2012.c2012 Association for Computational LinguisticsA Comparative Study of Target ... graphs of one sen-tence share the same root word and (2) if the head of one word in one sentence are identical in two depen-dency graphs. In terms of root word comparison, weobserve that MST and ... dependencyrelations. Dependent(s) → head(s), / = and, [] = optional.heads and (2) appending dependency relations for those words/punctuation that do not have any head.When one word has multiple heads, we only...

Báo cáo khoa học: " A comparative study of gastrointestinal parasites between ranched and free ranging Burchell''''s zebra (Equus burchelli antiquorum) in Isiolo district, Kenya" ppsx

... and Protozoa of Domesticated Animals. Bailliére Tindall, London, 1982.18.Turner H. On the nematode parasites of Chapman’s Zebra,pp. 441-451. Proceedings of the Zoological Society of London, ... GM. Report on the Entozoa collected from animals,which died in the Zoological Gardens -of London during 8months of 1919-1920. pp. 405-410, Proceedings of theZoological Society of London, 1920.20.Witlock ... investigation of zebra strongyloidosis. A study of zebra seasonal mortalities on Lewa Downs Ranch,Isiolo, Kenya, August, 1991.4. Krecek RC, Reinecke RK, Malan FS. Studies on theparasites of Zebras....

Báo cáo khoa học: "A Comparative Study on Generalization of Semantic Roles in FrameNet" ppt

... generalization.6.4 Hierarchical relations and relation typesWe analyzed the contributions of the FrameNet hi-erarchy for each type of role-to-role relations and for different depths of grouping. ... Death::Protagonistin the Causative of relation.Finally, the Precedes relation describes the se-quence of states and events, but does not spec-ify the direction of semantic inclusion relations.Therefore, ... Hierarchical relations among rolesFrameNet deﬁnes hierarchical relations amongframes (frame-to-frame relations). Each relationis assigned one of the seven types of directionalrelationships (Inheritance,...

Tài liệu Báo cáo khoa học: A comparative analysis of the time-dependent antiproliferative effects of daunorubicin and WP631 pdf

... sake of comparison,Fig. 5 shows both phase contrast and ﬂuorescence photo-graphs of selected ﬁeld of cells obtained under the samemagniﬁcation and contrast acquisition characteristics, and using ... excitation wavelength of 480 nm and an emission wavelength of 555 nm. Theﬂuorescence intensity emitted was translated into concen-trations of drug using a daunorubicin or WP631 standardcurve, and ... Corporation; Hialeah, FL, USA) at theÔServeis Cientiﬁco-TecnicsÕ of the University of Barcelona,using the 488 nm line of an argon laser and standard opticalemission ﬁlters. Percentages of cells...

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