Perceptions on proof and the teaching of proof: A comparison across preservice secondary teachers in Australia, USA and Korea

Despite the recognised importance of mathematical proof in secondary education, there is a limited but growing body of literature indicating how preservice secondary mathematics teachers (PSMTs) view proof and the teaching of proof. The purpose of this survey research was to investigate how PSMTs in Australia, the USA and Korea perceive of proof in the context of secondary mathematics teaching and learning. PSMTs were able to outline various mathematical and pedagogical aspects of proof, including purposes, characteristics, reasons for teaching and imposed constraints. In addition, PSMTs attended to differing, though overlapping, features of proof when asked to determine the extent to which proposed arguments constituted proofs or to decide which arguments they might present to students

MARINE TOURISM RESOURCE DEVELOPMENT IN KOREA

Resource /Energy Economics and Policy,

Studies on the [beta]-mannanase system of Penicillium purpurogenum

Thesis--University of Tsukuba, D.Agr.(A), no. 524, 1988. 3. 2

Emotional intelligence as a moderator in the emotional labour-burnout relationship: evidence from Malaysian HR professionals

The role of emotions amongst employees with extensive interpersonal interactions has been identified as critical for both individual and organisational performance. This particular study examines the relationship between emotional labour, trait emotional intelligence and three dimensions of burnout. Specifically, we examine whether trait emotional intelligence moderates the relationship between emotional labour and burnout. Based on a sample of 136 Malaysian HR professionals, we find that surface acting, but not deep acting, is a significant direct predictor of personal and work-related burnout. More interestingly though, trait emotional intelligence only buffered the effects between deep acting strategies and personal and work-related burnout. The findings from our study contribute to a deeper understanding of the conditions under which emotional labour can be beneficial to employee well-being

Scaling study of an improved fermion action on quenched lattices

We present scaling studies for heavy-quark observables calculated with an $O(a^2)$-improved fermion action on tree-level Symanzik improved gauge configurations. Lattices of $1/a =$ 2.0-3.8 GeV with an equal physical volume 1.6 fm are used. The results are compared with the standard domain-wall and naive Wilson fermions.Comment: 7 pages, 3 figures, presented at the 32nd International Symposium on Lattice Field Theory, 23-28 June, 2014, Colombia University, New York, US

Charm physics with Moebius Domain Wall Fermions

We present results showing that Domain Wall fermions are a suitable discretisation for the simulation of heavy quarks. This is done by a continuum scaling study of charm quarks in a M\"obius Domain Wall formalism using a quenched set-up. We find that discretisation effects remain well controlled by the choice of Domain Wall parameters preparing the ground work for the ongoing dynamical $2+1f$ charm program of RBC/UKQCD.Comment: The 32nd International Symposium on Lattice Field Theor

Real-time detection of an airborne microorganism using inertial impaction and mini-fluorescent microscopy

To achieve successful real-time detection of airborne pathogenic microorganisms, the problem must be considered in terms of their physical size and biological characteristics. We developed an airborne microorganism detection chip to realize the detection of microorganisms, ensuring compactness, sensitivity, cost-efficiency, and portability, using three key components: an inertial impaction system, a cartridge-type impaction plate, and a mini-fluorescent microscope. The inertial impaction system was used to separate microorganisms in terms of their aerodynamic particle size, and was fabricated with three impaction stages. Numerical analysis was performed to design the system; the calculated cutoff diameter at each impaction stage was 2.02 (first stage), 0.88 (second stage), and 0.54 μm (third stage). The measured cutoff diameters were 2.24, 0.91, and 0.49 μm, respectively. A cartridge-type impaction plate was used, composed of molded polydimethylsiloxane (PDMS) and an actual impaction region made of a SYBR green I dye-stained agar plate. A mini-fluorescent microscope was used to distinguish microbes from non-biological particles. Images of the microorganisms deposited at the impaction zone were obtained via mini-fluorescent microscopy, and fluorescent intensities of the images were calculated using in-house image-processing software. The results showed that the developed system successfully identified aerosolized biological particles from non-biological particles in real time