148,151 research outputs found
A correlation study of ACCUPLACER math cut scores, developmental math modules, math prep, and academic preparedness in the shared nursing program at Nicolet Area Technical College
No full textPlan BThe purpose of this study is to determine the correlation between the current math ACCUPLACER cut score of 80% and the successful completion of the developmental math modules or math prep to academic preparedness in the shared practical nursing program at Nicolet Area Technical College. The study included three cohorts of nurses from June 2001 through June 2003. Seven questions were specifically addressed by the study. These questions were: 1) Of the number of students applying for the practical nursing program, how many achieve the 80% on the ACCUPLACER placement test?, 2) Is there a differential impact on student success on the first nursing math test based on developmental math modules, math prep, or an 80% on the first ACCUPLACER try?, 3) What is the relationship between students’ grades in math prep and their score on the first nursing math exam? 4) What is the relationship of students’ scores before taking the developmental math modules and their score on the first nursing math exam?, 5) What is the relationship of students ACCUPLACER cut score of 80% or better and the score on their first nursing math exam?, 6) What is the relationship of students’ scores before taking math prep or developmental math modules and their score on the first nursing math exam? and, 7) What is the number of practical nursing students that failed the practical nursing program based on inability to pass a nursing math exam on their third attempt
Gender differences in children’s math self-concept in the first years of elementary school
No full textIn the course of elementary school children start to develop an academic self-concept reflecting their motivation, thoughts, and feelings about a specific domain. For the domain of mathematics, gender differences can emerge which are characterized by a less pronounced math self-concept for girls. However, studies are rather sparse regarding the early years of elementary school education, hence, the point in time when such gender differences emerge yet remains a matter of debate. In our study, we found that the math self-concept of elementary school children (n = 81) declined from first to second grade. While no differences in math achievement were observed between girls and boys, it became apparent that girls’ math self-concept was already less pronounced than the math self-concept of boys in the first years of elementary school. Our findings emphasize the importance of considering such gender differences even at the beginning of school education
On operator bands
No full textA multiplicative semigroup of idempotent operators is called an operator band. We prove that for each K > 1 there exists an irreducible operator band on the Hilbert space l(2) which is norm-bounded by K. This implies that there exists an irreducible operator band on a Banach space such that each member has operator norm equal to 1. Given a positive integer r, we introduce a notion of weak r-transitivity of a set of bounded operators on a Banach space. We construct an operator band on l(2) that is weakly r-transitive and is not weakly (r + 1)-transitive. We also study operator bands S satisfying a polynomial identity p(A, B) = 0 for all non-zero A, B epsilon S, where p is a given polynomial in two non-commuting variables. It turns out that the polynomial p(A, B) = (AB - BA)(2) has a special role in these considerations.PT: J; CR: CONWAY JB, 1990, COURSE FUNCTIONAL AN DRNOVSEK R, 1997, STUD MATH, V125, P97 FILLMORE P, 1999, SEMIGROUP FORUM, V59, P362 GREEN JA, 1952, P CAMBRIDGE PHILOS S, V48, P35 LIVSHITS L, IN PRESS J OPERATOR LIVSHITS L, 1998, J OPERAT THEOR, V40, P35 PETRICH M, 1977, LECT SEMIGROUPS; NR: 7; TC: 0; J9: STUD MATH; PG: 10; GA: 348YKSource type: Electronic(1
Estimates for L-1 vector fields under higher-order differential conditions
No full textWe prove that an L-1 vector field whose components satisfy some condition on k-th order derivatives induce linear functionals on the Sobolev space W-1,W-n(R-n). Two proofs are provided, relying on the two distinct methods developed by Bourgain and Brezis (J. Eur. Math. Soc., 2007) and by the author (C. R. Math. Acad. Sci. Paris, 2004) to prove the same result for divergence-free vector fields and partial extensions to higher-order conditions
Modified Copy, Cover, and Compare Using Multiplication Fact Triangles: The Effects on Math Fact Accuracy and Fluency
No full textThis study examined the use of a Modified Copy, Cover, and Compare math intervention to observe the effect it would have on students' math fact accuracy and fluency. The six week study was carried out in a rural midwestern middle and high school with students involved in the RtI Math intervention program and special education math pull out program in the high school. The study displayed a positive relationship between participation in the study and some increase in the students overall math achievement as measured by the STAR Math test and a decrease in their digits incorrect per minute as measured by a Mastering Math Facts Two Minute Timing. The study displayed room for growth in regard to future research with different participants, environments, controls and frequency in delivering the intervention
L-optimal transportation for Ricci flow
No full textWe introduce the notion of L-optimal transportation, and use it to construct a natural monotonic quantity for Ricci flow which includes a selection of other monotonicity results, including some key discoveries of Perelman [13] (both related to entropy and to L-length) and a recent result of McCann and the author [11]
A CHARACTERIZATION OF VIRTUALLY EMBEDDED SUBSURFACES IN 3-MANIFOLDS (vol 369, pg 1237, 2017)
No full textThe purpose of this note is to report an incorrect formula in the author's paper A characterization of virtually embedded subsurfaces in 3-manifolds, Trans. Amer. Math. Soc. 369 (2017), no. 2, 1237-1264.SCI(E)CORRECTION21513-151536
Differential Operator Equations with Interface Conditions in Modified Direct Sum Spaces
No full text3rd International Conference on Analysis and Applied Mathematics (ICAAM) -- SEP 07-10, 2016 -- Almaty, KAZAKHSTANWOS: 000439421100021We investigate a new type boundary value problem consisting of a differential-operator equation, eigendependent boundary conditions, and two supplementary conditions so-called interface conditions. We give a characterisation of some spectral properties of the considered problem. Particularly, it is established such properties as isomorphism and coerciveness, discreteness of the spectrum and found asymptotic formulas for eigenvalues.Inst Math & Math Modeling, Al Farabi Kazakh Natl Univ, L N Gumilyov Eurasian Natl Uni
Exploring the relationship between reading comprehension and math word problem test achievement
No full textThis professional inquiry explores the relationships between students' reading comprehension and their performance on a grade six math word problem test, and it evaluates the readability of the wording for word problem test items. Students' results on the 2008 Alberta Provincial Achievement Test for Part B, Word Problems, were compared to their reading levels on the Canadian Achievement Test and the Gates MacGinitie Reading Tests, to evaluate the correlation between reading comprehension and word problem performance. The researcher calculated the readability of test questions and invited students to comment on the difficulty of the wording for each question. This investigation revealed a strong positive correlation between the students' levels of reading comprehension and their scores on the math Provincial Achievement Test Part B. Analysis of scores for individual questions on the math test revealed some surprising anomalies that deserve investigation in a later study. The author shares insights that she will apply to her own teaching to assist students to improve their reading comprehension abilities and their math word problem success. She also provides advice for test construction and recommends further investigation of this research question with a larger sample size. --P. ii.The original print copy of this thesis may be available here: http://wizard.unbc.ca/record=b173785
Going Beyond Counting First Authors in Author Co-citation Analysis
No full textThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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