Index Catalog // ScholarsArchive@OSU

Elevated CO2 may alter pheromonal communication in Helicoverpa armigera (Lepidoptera: Noctuidae)

Creator:: Choi, Kyung San, Ahn, Seung-Joon, Kim, Su Bin, Ahn, Jeong Joon, Jung, Bong Nam, Go, Sang Wook, and Kim, Dong-Soon
Abstract:: Carbon dioxide (CO2) as a greenhouse gas has been increasing in recent decades. Because an elevated atmospheric CO2 influences insect physiology and behaviour, we hypothesize that pheromone-mediated communication in the moth is affected by an increased CO2 level. We test the behavioural responses of male Helicoverpa armigera to sex pheromone...
Resource Type:: Article

Identification and characterization of capa and pyrokinin genes in the brown marmorated stink bug, Halyomorpha halys (Hemiptera): Gene structure, immunocytochemistry, and differential expression

Creator:: Ahn, Seung-Joon and Choi, Man-Yeon
Abstract:: CAPA and pyrokinin (PK) neuropeptides are produced from two different genes, capa and pyrokinin, respectively. In this study, we identified and characterized the capa and pyrokinin genes from the brown marmorated stink bug, Halyomorpha halys (Hemiptera). The capa gene encodes two CAPA-PVK (periviscerokinin) peptides (DAGLFPFPRVamide and EQ-LIPFPRVamide) and one CAPA-DH...
Resource Type:: Article
Full Text:: interest. ORCID Seung‐Joon Ahn http://orcid.org/0000-0002-5980-106X Man‐Yeon Choi http://orcid.org/0000

Novel structures for high-speed delta-sigma data converters

Creator:: Chae, Jeong Seok
Abstract:: As CMOS processes keep scaling down devices, the maximum operating frequencies of CMOS devices increase, and hence circuits can process very wide band signals. Moreover, the small physical dimensions of transistors allow the placing of many more blocks into a single chip, including highly accurate analog blocks and complicated digital...
Resource Type:: Dissertation
Full Text:: AN ABSTRACT OF THE DISSERTATION OF Jeong Seok Chae for the degree of Doctor of Philosophy in

Biological-based control for spotted wing drosophila, Drosophila suzukii using RNAi technology with cost-effective dsRNA

Creator:: You, Hakyoung
Abstract:: A method for large quantity dsRNA production was developed since a small amount of dsRNA synthesized in vitro with commercial kits are used for small scale bioassay evaluations. Developing a large-scale production system for dsRNA is critical for practical RNAi application, especially for non-transgenic RNAi-based control. However, large-scale analysis or...
Resource Type:: Poster
Full Text:: and would be cost effective to growers. Hakyoung (Ann) You 1,2 , Kelly Donahue 1 , Seung-Joon Ahn

Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon

Creator:: Reich, Inga, Jessie, Casi, Ahn, Seung-Joon, Choi, Man-Yeon, Williams, Christopher, Gormally, Mike, and Mc Donnell, Rory
Abstract:: Many studies have shown that ground beetles feed on different agricultural pests, but little is known about their species communities from US cropping systems. We assessed the biological control potential of the most common carabid beetle species in Oregon annual ryegrass grown for seed by investigating spatial and temporal overlap...
Resource Type:: Article
Full Text:: , Diptera: Tipulidae) in Annual Ryegrass in Western Oregon Inga Reich 1,2,*, Casi Jessie 1, Seung-Joon Ahn

Multiple recombination events between two cytochrome P450 loci contribute to global pyrethroid resistance in Helicoverpa armigera

Creator:: Walsh, Thomas K., Joussen, Nicole, Tian, Kai, McGaughran, Angela, Anderson, Craig J., Qiu, Xinghui, Ahn, Seung-Joon, Bird, Lisa, Pavlidi, Nena, Vontas, John, Ryu, Jaeeun, Rasool, Akhtar, Macedo, Isabella Barony, Tay, Wee Tek, Zhang, Yongjun, Whitehouse, Mary E. A., Silvie, Pierre Jean, Downes, Sharon, Nemec, Lori, and Heckel, David G.
Abstract:: The cotton bollworm, Helicoverpa armigera (Hubner) is one of the most serious insect pest species to evolve resistance against many insecticides from different chemical classes. This species has evolved resistance to the pyrethroid insecticides across its native range and is becoming a truly global pest after establishing in South America...
Resource Type:: Article
Full Text:: , Seung-Joon Ahn, Nena Pavlidi, John Vontas, Jaeeun Ryu, Akhtar Rasool, Isabella Barony Macedo, Yongjun

The genome of the water strider Gerris buenoi reveals expansions of gene repertoires associated with adaptations to life on the water

Creator:: Armisen, David, Rajakumar, Rajendhran, Friedrich, Markus, Benoit, Joshua B., Robertson, Hugh M., Panfilio, Kristen A., Ahn, Seung-Joon, Poelchau, Monica F., Chao, Hsu, Dinh, Huyen, Doddapaneni, Harsha Vardhan, Dugan, Shannon, Gibbs, Richard A., Hughes, Daniel S. T., Han, Yi, Lee, Sandra L., Murali, Shwetha C., Muzny, Donna M., Qu, Jiaxin, Worley, Kim C., Munoz-Torres, Monica, Abouheif, Ehab, Bonneton, Francois, Chen, Travis, Chiang, Li-Mei, Childers, Christopher P., Cridge, Andrew G., Crumiere, Antonin J. J., Decaras, Amelie, Didion, Elise M., Duncan, Elizabeth J., Elpidina, Elena N., Fave, Marie-Julie, Finet, Cedric, Jacobs, Chris G. C., Jarvela, Alys M. Cheatle, Jennings, Emily C., Jones, Jeffery W., Lesoway, Maryna P., Lovegrove, Mackenzie R., Martynov, Alexander, Oppert, Brenda, Lillico-Ouachour, Angelica, Rajakumar, Arjuna, Refki, Peter Nagui, Rosendale, Andrew J., Santos, Maria Emilia, Toubiana, William, van der Zee, Maurijn, Jentzsch, Iris M. Vargas, Lowman, Aidamalia Vargas, Viala, Severine, Richards, Stephen, and Khila, Abderrahman
Abstract:: Background: Having conquered water surfaces worldwide, the semi-aquatic bugs occupy ponds, streams, lakes, mangroves, and even open oceans. The diversity of this group has inspired a range of scientific studies from ecology and evolution to developmental genetics and hydrodynamics of fluid locomotion. However, the lack of a representative water strider...
Resource Type:: Article
Full Text:: , Seung-Joon Ahn8,9, Monica F. Poelchau10, Hsu Chao11, Huyen Dinh11, Harsha Vardhan Doddapaneni11, Shannon

Synthesis of furanoeremophilane sesquiterpenoids

Creator:: Shanmugham, Meenakshi Sundaram
Abstract:: Two approaches to the tricyclic core of the furanoeremophilane sesquiterpenoids are described. The first approach entails a projected Diels-Alder/retro Diels-Alder reaction of an acetylenic oxazole 64. Construction of the pivotal aldehyde 67 commenced from ketone 68. The acetyenic moiety was then introduced via a Felkin-Ahn addition of lithiopropyne to aldehyde...
Resource Type:: Dissertation
Full Text:: ketone 68. The acetyenic moiety was then introduced via a Felkin-Ahn addition of lithiopropyne to

Printed Oxide Thin Film Transistors: A Mini Review

Creator:: Choi, Chang-Ho, Lin, Liang-Yu, Cheng, Chun-Cheng, and Chang, Chih-Hung
Abstract:: Compared to conventional amorphous silicon (a-Si) TFTs, amorphous metal oxide TFTs have superior device performance such as higher mobility, better sub-threshold swing, and lower off-state current. Amorphous metal oxide TFTs have an additional advantage on the device uniformity due to the lack of grain boundary issues in the poly-Si TFTs....
Resource Type:: Article
Full Text:: . D. Ahn, K. H. Kim, and H. J. Kim, Thin Solid Films 517, 4007 (2009). 41. D. Kim, Y. Jeong, C. Y

Fabrication of CuInGaSe₂ thin film solar cells using low-cost air-stable inks

Creator:: Wang, Wei
Abstract:: CuInGaSe₂ (CIGS), a promising thin film solar cell material, has gained lots of attention in decades due to its high energy conversion efficiency and potential lower manufacture cost over conventional Si solar cells. As a cheaper processing method compared to vacuum-based techniques, solution-based deposition has been successfully applied to fabricate...
Resource Type:: Dissertation
Full Text:: -Joon Sung, and Dae-Hwan Kim from Green Energy Research Division, Daegu Gyeongbuk Institute of Science

ScholarsArchive@OSU

Elevated CO2 may alter pheromonal communication in Helicoverpa armigera (Lepidoptera: Noctuidae)

Identification and characterization of capa and pyrokinin genes in the brown marmorated stink bug, Halyomorpha halys (Hemiptera): Gene structure, immunocytochemistry, and differential expression

Novel structures for high-speed delta-sigma data converters

Biological-based control for spotted wing drosophila, Drosophila suzukii using RNAi technology with cost-effective dsRNA

Assessment of the Biological Control Potential of Common Carabid Beetle Species for Autumn- and Winter-Active Pests (Gastropoda, Lepidoptera, Diptera: Tipulidae) in Annual Ryegrass in Western Oregon

Multiple recombination events between two cytochrome P450 loci contribute to global pyrethroid resistance in Helicoverpa armigera

The genome of the water strider Gerris buenoi reveals expansions of gene repertoires associated with adaptations to life on the water

Synthesis of furanoeremophilane sesquiterpenoids

Printed Oxide Thin Film Transistors: A Mini Review

Fabrication of CuInGaSe₂ thin film solar cells using low-cost air-stable inks

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