We aim to graphically analyze the depth of conceptual understanding behind Force Concept Inventory (FCI) responses students, focusing on three questions (questions 1, 15, and 28). In our study, we created implemented subquestions clarify quantify students’ reasoning steps in reaching their original FCI questions. used alluvial diagrams visualize students questions, representing transition rates...

BACKGROUND AND PURPOSE Even though the utilization of substrates alternative to glucose may play an important role in the survival of brain cells under ischemic conditions, evidence on changes in substrate selection by the adult brain in vivo during ischemic episodes remains very limited. This study investigates the utilization of glutamate, glutamine, and GABA as fuel by the neuronal and glial...

Recent studies have revealed that activation of extracellular signal-regulated kinase (ERK) may contribute to apoptosis, a cell death process involved in oxidative stress. We examined phosphorylation of ERK1/2 and oxidative stress after transient focal cerebral ischemia (FCI) using transgenic (Tg) mice that overexpress copper/zinc superoxide dismutase (SOD1). The mice were subjected to 60 min o...

A local and medium range atomic structure model for the face centred icosahedral (fci) Mg25Y11Zn64 alloy has been established in a sphere of r = 27 Å. The model was refined by least squares techniques using the atomic pair distribution (PDF) function obtained from synchrotron powder diffraction. Three hierarchies of the atomic arrangement can be found: (i) five types of local coordination polyh...

Previous studies have shown that many students have misconceptions about basic concepts in physics which persist after instruction. It has been concluded that one of the challenges lies in the teaching methodology. To address this, Georgia State University (GSU) has begun teaching studio algebra-based physics. Although many institutions have implemented studio physics, most have done so in calc...

Ž . Ž . Ž . Ž . Ž . Size-extensive Quadratic CI with single S , double D , triple T , and quadruple Q excitations QCISDTQ and its Ž . non-iterative extension to a method correct at sixth-order perturbation theory, QCISDTQ 6 , are developed and applied to Ž . electronic systems, for which full CI FCI results are available. It is shown that QCISDTQ results are more accurate than Ž . either QCISDT...

We have constructed the unrestricted Hartree-Fock (UHF), restricted Hartree-Fock (RHF), and full configuration interaction (FCI) position and momentum intracules and holes for H···H at bond lengths R from 1 to 10 bohrs. We trace the recently discovered inversion of the UHF position hole at intermediate R to over-localization of the spin-orbitals, and support this by a correlation energy compone...

AIM The study aim was to evaluate the acute hemodynamic effects of intranasal 17-beta-estradiol on ophthalmic arterial circulation in postmenopausal women. METHODS Twenty-one healthy women in natural menopause for at least 6 months (mean age: 53.2± 2.9 years) were investigated. Each patient received 300 µg intranasal 17-beta-estradiol. We evaluated the heart rate, systolic and diastolic blood...

Multiple-choice tests such as the Force Concept Inventory (FCI) provide useful instruments to probe the distribution of student difficulties on a large scale. However, traditional analysis often relies solely on scores (number of students giving the correct answer). This ignores what can be significant and important information: the distribution of wrong answers given by the class. In this pape...

One of the emerging computational approaches in nuclear physics is the full configuration interaction (FCI) method for solving the many-body nuclear Hamiltonian in a sufficiently large single-particle basis space to obtain exact answers either directly or by extrapolation. The lowest eigenvalues and corresponding eigenvectors for very large, sparse and unstructured nuclear Hamiltonian matrices ...