what happens to the students teachers and curriculum
Understanding test and exam results statistically
Ngày tải lên :
13/08/2016, 09:04
... has the lowest range (0) and the lowest SD (0.00) On the other hand, Group C has the greatest range (55) and the greatest SD (22.9) The other two groups have the “in-between” ranges and the “in-between” ... adding 12 boys and 15 girls turns them into 27 students, and they are no more boys and girls Adding 12 English-speaking students and 15 Mandarin students makes 27 students, and their respective ... But the word around is vague We need to set the upper and lower limits to that error We then add to and subtract from the predicted 75 % a margin What then is this margin? One way is to use the...
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Báo cáo khoa học: "A Note on the Translation of Swahili into English" pot
Ngày tải lên :
23/03/2014, 13:20
... however, we enter the stem toto and the "normal form" nunua, rather than the stem nunu This is because the singular and plural forms mtoto and watoto appear with comparable frequency It is therefore ... always to search for the stem toto, and then check the prefix for number In the case of verb forms, however, the active voice, in unmodified form, occurs far more frequently than any of the other ... as the stem The stem dictionary is now searched for this stem If it is found, the associated meaning, and the meanings of the recognized prefixes, are printed out, and the program moves to the...
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Báo cáo khoa học: "A Note on the Implementation of Hierarchical Dirichlet Processes" docx
Ngày tải lên :
31/03/2014, 00:20
... seated there and update the histogram When a customer leaves the restaurant (Algorithm 2), we decrement one of the tables at random according to the number of customers seated there By exchangeability, ... Omitting the trailing term leads to the approximation in Antoniak (1974) However, we can obtain an exact formula for the expectation by utilising the relationship between the Digamma function and the ... method is still to keep track of the actual table counts The naive method of doing so is to store which table each customer in the restaurant is seated at, incrementing and decrementing these counts...
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Báo cáo toán học: "A note on the number of (k, )-sum-free sets" potx
Ngày tải lên :
07/08/2014, 06:20
... like to thank referees for many valuable comments Due to their suggestions we were able to prove the main result of the note in its present sharp form the electronic journal of combinatorics ... completes the proof of Theorem 2 Corollary The estimate (5) holds, provided k > ≥ and max 1+ln (k − ), 2(1 + ln +1 +1 ) < ln ρ (9) the electronic journal of combinatorics (2000), #R30 Proof We need to ... < ρ and r ≡ n (mod ρ) Proof In order to obtain the lower bound let us observe that there are exactly ϕ maximal (k, )-sum-free arithmetic progressions with the difference ρ Precisely ϕr of them...
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Báo cáo toán học: "A note on the ranks of set-inclusion matrices" pps
Ngày tải lên :
07/08/2014, 06:22
... as may be seen by fixing x in X and classifying t-sets and k-sets according to whether x belongs to them or not Further, there is the elementary product formula Wt,k (v)Wk,l (v) ... does apply, with the same conclusion and proof as the above corollary In conclusion, we raise the question as to whether there is a q-analogue of formula (1), (q) i.e., for the (0,1)-inclusion ... Unfortunately, the condition (k − t) = in the hypothesis of our theorem precludes a new proof of Wilson’s theorem via our recursive formula In the special case when the characteristic p of F is larger...
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Báo cáo toán học: "A note on the number of edges guaranteeing a C4 in Eulerian bipartite digraph" pot
Ngày tải lên :
07/08/2014, 06:23
... conjecture, and together with a well-known construction obtain that it is sharp Furthermore, we obtain that the extremal graphs must be biregular Our main theorem is the following: Theorem 1.1 ... relates the distance between two vertices A and B in G(R, S) to the maximum number of cycles in a cycle decomposition of an Eulerian bipartite digraph that corresponds to A − B, together with the ... = m and |B| = n Let ≤ α ≤ satisfy |E| = αmn In order to prove the upper bound in Theorem 1.1 we need to show that if α > 2/3 then G has a directed C4 For v ∈ V let dv denote the indegree and...
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Báo cáo toán học: "A Note on the Number of Hamiltonian Paths in Strong Tournaments" ppsx
Ngày tải lên :
07/08/2014, 13:21
... · um−1 and apply the induction hypothesis using the paths P and Q to obtain a path R satisfying the lemma Next, we repeat the above argument with the portion of R beginning at um−1 and the vertex ... (v) If W + = ∅ and W − = ∅, then A = W − ∪ {w1 , v} and B = W + ∪ {wt , v} satisfy the lemma Otherwise, either W + = ∅ or W − = ∅ If W + = ∅, then N + (v) = {w1 } and reversing the arc vw1 gives ... transitive tournament of order n As noted by Moon [1], there is a bijection between partitions of V \ {v1 , } and hamiltonian paths that include the arc → v1 , and there is a unique hamiltonian path...
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Báo cáo toán học: " A note on the speed of hereditary graph properties" ppsx
Ngày tải lên :
08/08/2014, 14:23
... fact together with Corollary and Theorem imply the following conclusion Lemma The class of C4 -free quasi-line graphs is factorial Now from Lemmas and follows the main result of the section Theorem ... ree(M) the class of graphs containing no induced subgraphs isomorphic to graphs in the set M and call the graphs in this class M-free For a graph G, we denote by V (G) and E(G) the vertex set and the ... factorial upper bound for the class F ree(P4 ) The class F ree(P3 ) contains P (one of the minimal factorial classes), which gives a lower bound Therefore, Theorem The class F ree(G) is factorial...
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A Note on the Weighted Average Cost of Capital WACC pdf
Ngày tải lên :
07/03/2014, 00:20
... VL the value of the levered firm is equal to VUL the value of the unlevered firm VL = VUL (3) And in turn, the value of the levered firm is equal to VEquity the value of the equity plus V the ... but due to the inflationary component and not due to the capital structure In this situation, WACC is the cost of the assets, KA, or the cost of the firm, Ku and at the same time is the cost ... claim on the expected cash flow generated by the firm, relative to the debt holder, the risk to the equity holder is higher and the equity holder demands a higher return to compensate for the higher...
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Báo cáo toán học: " A note on the almost sure limit theorem for self-normalized partial sums of random variables in the domain of attraction of the normal law" pptx
Ngày tải lên :
20/06/2014, 21:20
... very grateful to the referees and the Editors for their valuable comments and some helpful suggestions that improved the clarity and readability of the paper This work was supported by the National ... use larger weights And it would be of considerable interest to determine the optimal weights On the other hand, by the Theorem of Schatte [3], Equation (3) fails for weight dk = The optimal weight ... say that the random variable X belongs to the domain of attraction of the normal law, if there exist constants an > 0, bn ∈ R such that S n − bn d −→ N, an where N is the standard normal random...
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Báo cáo hóa học: " A note on the complete convergence for sequences of pairwise NQD random variables" potx
Ngày tải lên :
20/06/2014, 22:20
... Talents Project (2005214), and the Guangxi China Science Foundation (2010GXNSFA013120) The authors are very grateful to the referees and the editors for their valuable comments and some helpful suggestions ... of independent and identically distributed random variables converges completely to the expected value if the variance of the summands is finite Erdös [9] proved the converse The result of Hsu-Robbins-Erdös ... DW and QW carried out the design of the study and performed the analysis QZ participated in its design and coordination All authors read and approved the final manuscript Competing interests The...
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Báo cáo hóa học: " A note on the complete convergence for arrays of dependent random variables" docx
Ngày tải lên :
20/06/2014, 22:20
... i=1 The rest of the proof is same as that of Theorem 1.6 except using Theorem 2.6 instead of Theorem 2.4 and is omitted ■ Acknowledgments The author would like to thank the referees for the helpful ... can be proved Theorem 1.6 by using Theorem 2.4 But it is not easy to prove Theorem 2.4 by using Theorem 1.6 So Theorem 2.4 is more general than Theorem 1.6 Proof of Theorem 1.6 The set of all ... (i) Hence, the result is proved ■ It can be proved Theorem 1.4 by using Theorem 2.6 But it is not easy to prove Theorem 2.6 by using Theorem 1.4 So Theorem 2.6 is more general than Theorem 1.4...
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Báo cáo hóa học: " A note on the Königs domain of compact composition operators on the Bloch space" doc
Ngày tải lên :
21/06/2014, 01:20
... lemma Lemma Under the hypotheses of the theorem, w and gw tend to the same prime end at ∞, and ∂gΩ ⊂ Ω Proof The first assertion follows from the fact that the closure of ϕ(D) touches T only at ... satisfies the hypotheses of the Theorem and that any of the equivalent conditions holds, then for r = |z| log |σ (z)| = o log log 1−r We also provide the following restatement of the hypotheses of Theorem ... sector if there is an unbounded curve Γ Î Ω with δ (w) ≥ ε|w| for some ε > and all w Î Γ, where δΩ is the distance from w to the boundary of Ω as defined below The purpose of this paper is to...
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Báo cáo sinh học: "Research Article A Note on Symmetric Properties of the Twisted q-Bernoulli Polynomials and the Twisted Generalized q-Bernoulli Polynomials" docx
Ngày tải lên :
21/06/2014, 16:20
... polynomials attached to χ of higher order and investigate some symmetric properties of them Furthermore, using these symmetric properties of them, we can obtain some relationships between the twisted ... questions The Twisted Generalized Bernoulli Polynomials Attached to χ of Higher Order In this section, we consider the generalized Bernoulli numbers and polynomials and then define the twisted ... related to Bernoulli numbers and polynomials 12 Advances in Difference Equations Acknowledgments The authors express Their sincere gratitude to referees for their valuable suggestions and comments...
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Báo cáo hóa học: " Research Article A Note on the Relaxation-Time Limit of the Isothermal Euler Equations" pdf
Ngày tải lên :
22/06/2014, 19:20
... Then, we estimate the L2 ([0,T],H σ −1+ε ) norm of ∇U Step Applying the operator Δq to (3.2), multiplying the resulting equations by Δq m and Δq u, respectively, and then integrating them over Rd ... Apply the operator Δq to the system (4.11) to get d ∂t Δ q U + A j (0)∂x j Δq U = Δq Ᏻ − j =1 τ Δq u (4.14) By performing the Fourier transform with respect to the space variable x for (4.14) and ... τ τ (4.6) where we have taken the advantage of the fact Δq ∇m L2 ≈ 2q Δq m L2 (q ≥ 0) By summing (4.6) on q ∈ N ∪ {0} and adding (4.5) together, then according to the imbedding property in Sobolev...
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Báo cáo toán học: "A Note on the Symmetric Powers of the Standard Representation of Sn" ppt
Ngày tải lên :
07/08/2014, 06:20
... that fλ (q) is the generating function for the entries of the column corresponding to the λ-cycles The dimension of the column-span of our table is therefore equal to dim Fn , and the proposition ... Since the dimension of the row-span of a matrix is equal to the dimension of its column-span, we can equally well study the dimension of the space spanned by the columns of the table By the preceeding ... significant effect on the theory.) In this context it seems natural to ask: what is the dimension of the space spanned by the symmetric powers? Moreover, decomposing the symmetric powers of the character...
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Báo cáo toán học: "A note on the non-colorability threshold of a random graph" pot
Ngày tải lên :
07/08/2014, 06:20
... parameter equal to 10−50 and set the scale of the problem equal to 10−50 Finally, we set the number of decimal digits parameter of Maple equal to 100 We run the algorithm and it returned as the maximum ... is α0 β0 n2 For each of these edges, their endpoint that belongs to V1 is unmovable to V2 since their other endpoint belongs to V2 Also, α0 γ0 n2 and β0 γ0 n2 are the numbers of possible edges ... [16]) In the sections to follow, we will explain the analogy of our problem with the occupancy problem and we will describe the computations that allowed us to obtain as an upper bound to the threshold...
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Báo cáo toán học: "A Note on the Asymptotic Behavior of the Heights in b-Tries for b Large" ppt
Ngày tải lên :
07/08/2014, 06:20
... results in Theorem 2, and also demonstrate the necessity of treating the five different scales To so, it is best to fix b and k, and vary n We consider the range b + ≤ n ≤ b2k , since otherwise hk ... and demonstrates the transition between cases (c) and (d) and then (d) and (e) In general, the results in Tables and are more accurate than those in Tables and 2, as one would expect, since the ... understood by viewing the problem as first fixing k and b, and then varying n (cf Section 4) Theorem For b → ∞ the distribution of the height of b-tries has the following asymptotic expansions: (a)...
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Báo cáo toán học: " A Note on the Asymptotics and Computational Complexity of Graph Distinguishability" docx
Ngày tải lên :
07/08/2014, 06:22
... general introduction to complexity theory and detailed discussions of the polynomial time hierarchy and AM, we refer the reader to [9] and [4, 5] The polynomial time hierarchy is the “polynomial time ... We now return to the first theorem advertised in the introduction, namely Select a large rigid graph H and let GH be the graph formed by the disjoint union of K3 and copies of H Then Aut(GH ) ... a random d-coloring of G, the probability distribution given by selecting the color of each vertex independently and uniformly in the set {1, , d} Fix an automorphism φ = id and consider the...
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