11,957 research outputs found
Beyond Lesson Studies and Design Experiments: Using theoretical tools in practice and finding out how they work
No full textThis paper aims to illustrate how fruitful insights into the link between school teaching practice and student learning outcomes can be theoretically grounded by the variation theory from the field of phenomenography; and from this framework demonstrate how a 'pedagogy of awareness' can be implemented in the classroom. In this study, five teachers and 162 students at Primary Four level of school education in Hong Kong participated and the practice of the 'learning study' was adopted. By comparing the results of pre- and posttests, a significant gain was observed in the students learning outcomes.
PANG
No full textPANG is mostly a memoir. It has three parts. The first third is part of a book-length memoir exploring the author\u27s relationship to art, people in art, and the apparatuses it exists within and under. Part two is composed of a cycle of autofiction short stories where transmasculine characters navigate masculinity, gender-affirming care, family, and anti-trans legislation in contemporary Florida. The final third of this creative dissertation is a collection of essays that explore embodiment and disembodiment, connection, and disconnection as it relates to the author\u27s experiences with the medical industrial complex, clothing, language, and American culture at large
Rayong Changwat (Thailand), Pang Rat from river
No full textTambon Phang Rat, Amphur Glang, Changwat Rayong. November 23, 1936. Pang Nat from the harbor entrance. 3.5 1/300 G.GrayscalePendleton nitrate negative, Box 186 of 38
Haemaphysalis menglaensis Pang, Chen and Xiang 1982
No full text98. Haemaphysalis menglaensis Pang, Chen and Xiang, 1982. An Oriental species known only to parasitize Artiodactyla: Cervidae. M: Pang et al. (1982) F: Pang et al. (1982) N: unknown L: unknown Redescriptions M: Teng and Jiang (1991) F: Teng and Jiang (1991)Published as part of Guglielmone, Alberto A., Petney, Trevor N. & Robbins, Richard G., 2020, Ixodidae (Acari: Ixodoidea): descriptions and redescriptions of all known species from 1758 to December 31, 2019, pp. 1-322 in Zootaxa 4871 (1) on page 178, DOI: 10.11646/zootaxa.4871.1.1, http://zenodo.org/record/442334
Spicule dimensions of Siphonodictyon brevitubulatum Pang, 1973; sample no. YPM 8717 (holotype)
No full textSubstrate: Montastrea annularis; Sampled by R. Keeley and identified by R. K. Pang. All measurements are of mature, fully formed oxeas to allow statistical comparison with other samples. Measurements conducted by C. Schönberg on preparation of acid-cleaned spicules made by B. Calcinai. Data are sorted vertically by spicule width.; Pang, Rosemary K. (1973) The systematics of some Jamaican excavating sponges (Porifera). Postilla of the Peabody Museum of the Yale University 161: 1-75 (YPM 8717: pp. 56-58, Tab. 2). Carballo, José L.; Hepburn, Leanne; Nava, Héctor, H.; Cruz-Barraza, José A.; Bautista-Guerrero, E. (in press) Coral-boring Aka species (Porifera: Phloeodictyidae) from Mexico with description of Aka cryptica sp. nov. Journal of the Marine Biological Association of the United Kingdom
Ping-Pong-Pang Instrumentation Amplifier
No full textThis thesis describes the implementation of a Precision Instrumentation Amplifier using a Current Feedback Instrumentation Amplifier topology (CFIA). CFIAs are attractive for sensor readout, because of their high CMRR and their ability to interface with ground-referenced sensors. Several chopping and auto-zeroing techniques have been developed to reduce the offset and 1/f noise of such amplifiers to the ?V level. As a result, their dominant source of error is now gain error, which is limited by mismatch to at best 0.1%. This paper describes a CFIA that applies dynamic element matching (DEM) to achieve a gain error of less than 0.04%. Moreover, it presents the first silicon implementation of the ping-pong-pang (PPP) auto-zeroing scheme, which enables a 3.5× reduction in power consumption and 2.5× improvement in gain error as compared to state-of-the-art ping-pong auto-zeroed CFIAs.Electronic InstrumentationMicroelectronics & Computer EngineeringElectrical Engineering, Mathematics and Computer Scienc
Characterization of Thermostable Cellulase from Bacillus licheniformis PANG L Isolated from the Himalayan Soil
No full textThis study aimed to isolate, purify, and characterize a potential thermophilic cellulase-producing bacterium from the Himalayan soil. Eleven thermophilic bacteria were isolated, and the strain PANG L was found to be the most potent cellulolytic producer. Morphological, physiological, biochemical, and molecular characterization identified PANG L as Bacillus licheniformis. This is the first study on the isolation of thermostable cellulase-producing Bacillus licheniformis from the Himalayan soil. This bacterium was processed for the production of cellulase enzyme. The optimum conditions for cellulase production were achieved at 45°C after 48 h of incubation at pH 6.5 in media-containing carboxymethyl cellulose (CMC) and yeast extract as carbon and nitrogen sources, respectively, in a thermo-shaker at 100 rpm. The enzyme was partially purified by 80% ammonium sulphate precipitation followed by dialysis, resulting in a 1.52-fold purification. The optimal activity of partially purified cellulase was observed at a temperature of 60°C and pH 5. The cellulase enzyme was stable within the pH ranges of 3–5 and retained 67% of activity even at 55°C. Cellulase activity was found to be enhanced in the presence of metal ions such as Cd2+, Pb2+, and Ba2+. The enzyme showed the highest activity when CMC was used as a substrate, followed by cellobiose. The Km and Vmax values of the enzyme were 1.8 mg/ml and 10.92 μg/ml/min, respectively. The cellulase enzyme obtained from Bacillus licheniformis PANG L had suitable catalytic properties for use in industrial applications
Effects of microstructure on room temperature fatigue crack initiation and short crack propagation in Udimet 720Li Ni-base superalloy
No full textAn assessment of the effects of microstructure on room temperature fatigue crack initiation and short crack propagation in a Ni-base superalloy is presented. The assessment was carried out on microstructural variants of U720Li, including as-received U720Li, U720Li-LG (large grain variant) and U720Li-LP (large intragranular coherent ?? variant). Fatigue tests were carried out at room temperature using a 20Hz sinusoidal cycling waveform on plain bend bars. Tests were conducted in 3-point bend under load control with an R-ratio of 0.1. A maximum load of 95% ?y was used in all tests. Room temperature fatigue crack initiation was noted to occur due to slip band cracking and from porosity on or just beneath the surface in all materials. Crack propagation was noted to be highly faceted (due to planar slip band cracking) immediately after crack initiation followed by a transition to a flatter Stage II type crack path as crack length increases. U720Li-LP was noted to show the longest fatigue lifetime, followed by U720Li-LG while U720Li shows the shortest life. The longer lifetime of U720Li-LP was linked to a higher resistance to both fatigue crack initiation and short crack propagation. U720Li and U720Li-LG show approximately similar crack initiation resistance although U720Li-LG showed slightly improved short crack growth resistance. The observations have been rationalised in terms of the microstructural characteristics of the materials, and it is believed that larger grain size, larger coherent ?? precipitate size and higher volume fractions of both coherent and primary ?? precipitates will improve overall fatigue lifetimes in PM Ni-base alloys which exhibit planar slip characteristics at room temperature
Reviewing the trends of nursing doctoral thesis research in Hong Kong
No full textAuthor name used in this publication: Pang, Samantha.Version of RecordPublishedC
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