Inspired by recent work in the theory of central projections onto hyper-surfaces, we characterize self-linked perfect ideals of grade 2 as those with a Hilbert– Burch matrix that has a maximal symmetric subblock. We also prove that every Gorenstein perfect algebra of grade 1 can be presented, as a module, by a symmetric matrix. Both results are derived from the same elementary lemma about symme...

Inspired by recent work in the theory of central projections onto hypersurfaces, we characterize self-linked perfect ideals of grade 2 as those with a Hilbert–Burch matrix that has a maximal symmetric subblock. We also prove that every Gorenstein perfect algebra of grade 1 can be presented, as a module, by a symmetric matrix. Both results are derived from the same elementary lemma about symmetr...

objective: the purpose of this study is to provide evidence of validity of the relational and overt aggression questionnaire (roaq) among iranian elementary students. methods: three hundred and forty nine 4th and 5th grade students (ages 9 and 10) participated in this study. participants completed the roaq. the scale consisted of 33 items designed to measure self-report aggressive behaviors for...

OBJECTIVE This study explored the victimization experiences of urban elementary school students to determine whether subsets of youth emerged with similar victimization profiles (e.g., no victimization, multiple types of victimization). It also evaluated whether multiple victimization was associated with greater psychological distress and lower academic performance. METHODS Participants were ...

The use of multimedia graphic organizer software and how it influenced the prewriting process for primary school children were evaluated. An analysis of writing samples generated by second-grade students with diverse writing abilities was carried out. Students were given two opportunities to participate in prewriting activities—one without and one with the use of multimedia graphic organizer so...

purpose :   the aim of this study was to examine the influence of selected exercises on motor development in elementary school third grade girl students in ahwaz city, iran . methods :   the present study was semi-experimental, performed as field and using experimental and control groups. the statistical population included all third grade girl students of elementary schools of ahvaz city (10,5...

the present study was undertaken to investigate and optimize the possibility of xanthan gum production by xanthomonas campestris ptcc1473 in 500ml shake flasks on the second grade date palm. using an experimental response surface methodology (rsm) coupled with a central composite design (ccd), three major independent variables (nitrogen source, phosphor source and agitation rate) were evaluated...

This research addresses the issue of students struggling with reading and comprehending narrative texts. Its objective is to enhance comprehension 5th-grade elementary school by employing graphic organizer method. method emphasizes creation concept maps or charts aid in understanding The follows a classroom action approach, consisting two cycles one meeting each. Each cycle involves lesson plan...

exact solution for steady two-dimensional flow of an incompressible magma is obtained. themagmatic flow is studied by considering the magma as a second grade fluid. the governing partialdifferential equations are transformed to ordinary differential equations by symmetry transformations. resultsare discussed through graphs to understand the rheology of the flowing magma

This critical classroom study of language oppression draws from the notion existing inequalities based on power relations in education research, as addressed a ethnography. explores cases two recent immigrant students, “Manuel” and “Malena,” – U.S.–Mexican border near El Paso, Texas, who were attending fifth-grade dual class at “Border PK-5 Elementary School” (pseudonyms). school followed 50/50...