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Opto-Electronics Integrated Circuit for Communication Application
Hayes, J. R. 대한전자공학회 1991 ICVC : International Conference on VLSI and CAD Vol.2 No.1
Optoelectronic Integrated Circuits, comprising the integration of optical and electronic components, have the potential to address a wide range of applications involving optical signal distribution, processing and detection with high performance at low cost. In this article we review the present position of OEICs and the trends that indicate future directions are reviewed.
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Ectosymbionts of the Sea Anemone Stichodactyla gigantea at Kosrae, Micronesia
Hayes, Floyd E.,Painter, Brandon J. The Korean Society of Systematic Zoology 2016 Animal Systematics, Evolution and Diversity Vol.32 No.2
We studied the ectosymbionts associating with the sea anemone Stichodactyla gigantea at Kosrae, Micronesia. Ectosymbionts of seven species associated with 60.7% of S. gigantea (n=28), with a mean of 2.4 per anemone and 3.9 per occupied anemone. Anemones hosting one or more ectosymbionts did not differ significantly in size from anemones lacking ectosymbionts and there was no significant correlation between anemone size and the number of ectosymbionts. Of 67 ectosymbionts observed, the sea cucumber Stichopus vastus comprised 23.9%, followed by the shrimp Thor amboinensis (20.9%), unidentified hermit crabs (Paguroidea; 20.9%), the cardinalfish Ostorhinchus novemfasciatus (20.9%), the shrimp Periclimenes brevicarpalis (9.0%), the sea cucumber Holothuria hilla (3.0%), and an unidentified brachyuran crab (1.5%). This study documents the first records of S. vastus, H. hilla, and O. novemfasciatus associating with S. gigantea, and the first locality records of S. gigantea, T. amboinensis, P. brevicarpalis, and S. vastus for Kosrae. Because humans often harvest S. gigantea for food at Kosrae, we recommend protecting the symbiotic assemblage of S. gigantea by establishing a sustainable system of harvesting.
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David Hayes,장경숙,이제영,전영주 한국영어교과교육학회 2023 영어교과교육 Vol.22 No.3
The present paper reviews the literature of teacher professional development to make underlying assumptions for school-based language teacher development (SBTD) programs. The analysis of cases in Chile, Spain and Canada illustrates SBTD in specific contexts and provides the theoretical basis from which generalizations are drawn for successful implementation of SBTD in other contexts. The content focus for professional development in the cases varies, as does the educational level, but the lessons learnt from each have wider applicability for school-based teacher development in language teaching contexts. Based on the lessons, it is asserted that SBTD enables the dynamic interaction between the teacher and their teaching context. This embodies a more effective model for professional development, especially in the field of English language teaching, where traditional development programs often overlook classroom realities and lack a school-based component. The review underscores characteristics of successful SBTD programs, which may inform ELT professional development programs: stakeholders’ involvement, trust building, collaborative and egalitarian ways of working, time and space for collaborative work, process documentation, supportive leadership, change in the school as a social organization, and professional reflection. The paper concludes that SBTD is a conduit for transforming the school into a learning environment for teachers, fostering professional growth, and consequently enhancing student achievement.
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