relationships based on multiple columns

... Palaeoenvironment and the subsequent origin of cultivated rice Corxference on the Palaeoenvironment of East Asia fronx the Mid-Tertiary Hong-Kong, January 7-12, 1983 Evolution of East ... perturbation des habitats primitifs. Mots clés : Gramirtées, Oryza, isozyme, évolution, domestication. I. Introduction The heterogeneous and world wide tribe Oryzeae is considered on ... SECOND (1982). The morphology and F1 pollen sterility relationships of wild rice was studied extensively in M ORISHIMA (1969). However, only O. rufipogon and O. longistaminata

Ngày tải lên: 09/08/2014, 22:23

... duplication and the evolutionary constraints of constituent enzymes Keywords: Isoflavonoid phytoalexin pathway, Duplication pattern, Evolution divergence, Multiple copies, Soybean Background Isoflavonoid ... isoflavonoid pathway experienced convergent evolution and were subject to similar selection This hypothesis requires substantial functional evidence in plants for confirmation Conclusions Although ... above conclusions still apply when multiple copies encoding each enzyme are considered Homologous copies could incur functional differentiation after gene duplication, including pseudogenization

Ngày tải lên: 27/03/2023, 03:53

... with the proposed scheme. IV. CONCLUSION In this paper, we have made a contribution to a multiple non-blind watermarking scheme based on the DWT. The proposed scheme consists in applying the DWT ... Ecole Nationale d'Ingénieurs de Tunis LR-SITI: Signal Image et Technologies de l'Information, Tunis, Tunisia Abstract— In this paper we make contributions to a non-blind multiple watermarking ... DWT using the q uantization approach. Tao and Eskicioglu propose in [12] a non-blind multiple watermarking scheme based on the DW T. First, they apply the first or second level DWT to the cover

Ngày tải lên: 21/11/2013, 23:58

... projection theory says that consecutive pro- jections onto two nonconvex sets will reach a trap point be- yond which future projections do not change the results [40]. After several iterations of ... Motion compensation ME Motion estimation HT & Q Integer transform and quantization DQ & IHT Dequantization and inverse integer transform PDC Pixel domain composition RDO MD Rate-distortion ... be done with motion reestimation, mode decision, and en- tropy coding. It takes significant complexity to perform ex- haustive motion reestimation and RDO mode decision for every MB with wrong

Ngày tải lên: 22/06/2014, 19:20

... Communications for Fifth-Generation (5G) Wireless Networks-with a focus on Propagation Models”, IEEE Transactions on Antennas and Propagation, Special Issue on 5G, Nov 2017 [11] Wonil Roh, Ji-Yun ... next section, the proposed system model is introduced Section III presents simulation results Concluding remarks and directions for further researches are mentioned in the last section II SYSTEM ... Lee1 , Yong-Hwan Kim2, Jong Ho Paik3 and Joon Tae Kim, “A study of development of transmission systems for next-generation terrestrial K UHD and HD convergence broadcasting”, EURASIP Journal on Wireless

Ngày tải lên: 11/02/2020, 16:51

... calibration by calculating for an air material sample with the same condition The selected material sample is a TeflonPTFE nonmagnetic material The TeflonPTFE is widely used in communication devices, ... (ISSN: 1859 - 4557) INTRODUCTION The reflection method is a type of nonresonant method, the properties of a sample are obtained from the reflection due to the impedance discontinuity caused by the presence ... transmission technique,” In Instrumentation and Measurement Technology Conference (I2MTC), IEEE International, pp 310-313, 2012 [7] R.A Fenner and S Keilson, “Free space material characterization using

Ngày tải lên: 05/11/2020, 09:10

... results are consistent with the known evolutionary relationship among the species For direct survey of evolutionary relationship among the species, we construct the phylogenetic tree based on the distance ... sequence comparison based on K-string dictionary Gene 2013;529:250–6 50 Tian K, Yang X, Kong Q, Yin C, He R, Yau S Two dimensional Yau-Hausdorff distance with applications on comparison of DNA and ... analysis of protein sequences and prediction of protein structures, functions and interactions The feature extraction based on graphical representation is one of the most effective and efficient

Ngày tải lên: 25/11/2020, 12:40

... corresponding to linear logistic regression and three novel extensions of LS-PLS for logistic regression models The simulation study conducted to evaluate these approaches, and a demonstration on ... comparison of their prediction performances via a simulation and on real data sets from cancer studies is conducted Conclusion: In general, those methods using only clinical data or only genomic data perform ... dimensionality reduction strategy, one possible way to handle the high dimensionality of genomic data is to first apply dimensionality reduction techniques to only the genomic data set In the second

Ngày tải lên: 25/11/2020, 14:16

... stored on only one (or few) of the nodes and discovered based on user’s queries 2.3.1 Solution Data indexing proposed as a distribution inform ation discovery solution I t also based on Structured ... Information distribution based on Attribute-Value trees This section presents an IN S /T w ine solution for M u ltip le -a ttrib u te inform ation searching on D H T -based P P network The solution ... organization and distribution based on a ttrib u te value trees The subsection describes components, which its interaction allows implement the proposed solution The last, we present summary evaluation

Ngày tải lên: 03/02/2023, 19:38

... behavior.Based on the objectives set out, the research focuses on answering the following 3 questions: 1 How do consumer consciousness and TPB model affect future outbound travel intention in the context ... QuestionsBased on the objectives set out, the research focuses on answering the following 3 questions: 1 How do consumer consciousness and TPB model affect future outbound travel intention in ... and perceived behavioral control Together, these volitional and non-volitional constructs shape an individual's intentions Originating from the Theory of Reasoned Action (TRA), the TPB effectively

Ngày tải lên: 28/12/2024, 15:27

... regions This article is based on the author’s “‘Nippon Sho’ konkuru ni miru sekai no kyoiku bangumi/kontentsu no choryu,” published in the March 2011 issue of Hoso kenkyu to chosa, the monthly ... version for international readers has been updated with important additional information The author wishes to thank the JAPAN PRIZE Contest Secretariat for its cooperation in the preparation of ... Educational Media 1 The divisions and categories of the contest have undergone changes since 2000, and as of 2010 (37th JAPAN PRIZE), there are two divisions: The Audiovisual Division (consists

Ngày tải lên: 01/11/2013, 14:44

... Selec- tion, or the Preservation of Favoured Races in the Struggle for Life [1], Darwin’s theory of evolution, in which natural selection acting on heritable variation in populations is responsible ... of speciation, non-Mendelian inheritance and the response of plants to environmental stress. Controlling genomic variability As genetic variation is the ultimate source of pheno- typic variation within ... epigenetic variability In addition to genetic variation, epigenetic variability can also contribute to phenotypic variation, upon which evolutionary forces can act [12]. A major con- tributor to epigenetic

Ngày tải lên: 18/02/2014, 11:20

... required for the aminoacylation reaction are present at sufficient con- centration in the crystallization solution, the aminoacy- lation reaction does not occur during the long time needed for crystal ... also containing the ATP analog adenosine-5¢-(b,c-imido)triphosphate (ANP); we found one reasonable mechanism, based on newly obtained structural information about the posi- tion of ATP bound on ... tRNA Arg CCU to the N-terminal domain contributes to the activation effect of tRNA on tRNA- assisted Arg-AMP formation reaction or the amino- acylation reaction, we constructed P. horikoshii ArgRS (residues

Ngày tải lên: 18/02/2014, 11:20

... derive structure/function relationships, particularly in the postgenome era, in order to understand post-translational glycosylation and its function Expansion of our knowledge on the repertoire of ... undecasaccharide fractions were further fractionated by normalphase HPLC on a preparative Separon amino column (10 · 250 mm) by elution with 50% (v/v) acetonitrile to give octasaccharide (F8), nonasaccharide ... fragmentation The nomenclature used to define the cleavage is based on that introduced previously [15], and ions marked with ÔhÕ are fragments produced by dehydration of the major ions individual monosaccharide

Ngày tải lên: 19/02/2014, 12:20

... are summarized in Table 2. Among the single deletion mutants, only the subunit 6 (MES8) and subunit 10 (UBL2) deletion strains were able to grow on nonfermentable carbon source at a rate compar- able ... Immunodetection of the yeast mitochondrial proteins was carried out with monoclonal and polyclonal antibodies by chemilumines- cence. The stained polyacrylamide gels and the fluoro- graphs containing ... methods Protein concentrations were determined by the Bradford method [26] or the modified Lowry method [27]. Electro- phoretic analysis of DNA on agarose gels, restriction endonuclease analysis, ligation of

Ngày tải lên: 19/02/2014, 12:20

... Association for Computational Linguistics, pages 1169–1178, Portland, Oregon, June 19-24, 2011. c 2011 Association for Computational Linguistics A Pronoun Anaphora Resolution System based on Factorial ... few considerations made us reconsider. First, exceptions are found in the corpus. Personal pronouns such as she or he are used to refer to coun- try, regions, states or organizations. Second, ... graph-partitioning methods (McCallum and Wellner, 2003) decompose the task into a col- lection of pairwise or mention set coreference de- cisions. Decisions for each pair or each group of mentions are based

Ngày tải lên: 20/02/2014, 04:20

... wise. 9 Each chapter contains three sections. 9 Section 1 contains easy level questions. 9 Section 2 contains competitive level questions. 9 Section 3 contains questions from various competitive ... Example And (Conjuction) ∧ p and q : p ∧ q Or (Disjunction) ∨ p or q : p ∨ q If … then (Conditional) (Implication) → or ⇒ If p, then q: p → q If and only if (Biconditional) (iff) (Double ... Equivalence: Tautology, Contradiction, Contingency 17. The proposition p → ~(p ∧ ~q) is (A) contradiction. (B) a tautology. (C) contingency. (D) none of these 18. The proposition (p → q) ↔ (...

Ngày tải lên: 31/03/2014, 12:20