영남지역 토마토 시설재배지에 발생한 꽃노랑총채벌레에 대한 살충제 5종의 약제 반응

이호욱,최재혁,이종원,김이슬,유황빈,김민재,장철,이동운 한국농약과학회 2023 농약과학회지 Vol.27 No.4

Tomato, a fruit vegetable of great international importance, suffer damage from Western flower thrip (Frankliniella occidentalis), and their vectored viral pathogens that cause devastating viral diseases such as tomato spotted wilt disease. Farmers utilize various pesticides to control F. occidentalis. However, abuse of insecticide leads to development of resistance in the targeted F. occidentalis populations. In this situation, insecticide resistance evaluation data for suggesting efficient F. occidentalis control regimes is a critical necessity. Therefore, this study evaluated five types of insecticides (Acrinathrin 5.7% SC, Dinotefuran 20% WG, Emamectin benzoate 2.15% ME, Chlorfenapyr 5% EC and Fluxametamide 9% EC) for insecticide resistance in F. occidentalis strains collected from tomato greenhouses located in Chang-won, Gim-hae and Po-hang. The insecticidal effects varied depending on the insecticide, and there were also significant differences between collected regions. Acrinathrin showed a high resistance ratio and high control efficacy index (CEI) in all three regions. Fluxamethamide showed a low resistance ratio in all three regions, but showed a relatively high CEI in the Pohang region. Emamectin benzoate also showed low resistance ratio and CEI in populations in Gim-hae and Pohang regions. It is judged that it is necessary to manage farm use of insecticides with high resistance ratios or high CEI in each region.

The Impact of TMT International Exposure on Strategic Flexibility and the Moderating Role of TMT Compensation: A Study of U.S. Firms

이호욱 한국국제경영학회 2013 國際經營硏究 Vol.24 No.2

This study proposes that the international exposure of the top executives (i.e., TMT) is an important antecedent to the strategic flexibility of firms. Additionally, I examine the moderating role of TMT compensation for the TMT international exposure strategic flexibility relationship. Based on a sample of 250 firms, I find TMT international exposure has a positive effect on the strategic flexibility of the firm. However, I did not find any evidence to support the moderating role of TMT compensation. I discuss implications and directions for future research.

농촌 지역에서 지리답사 실천하기 - 경남의 한 고등학교 주변을 사례로 -

이호욱 대한지리학회 2024 대한지리학회지 Vol.59 No.4

This study analyzed instances in which the researcher engaged in geographical fieldwork class in the vicinity of a rural high school in Gyeongsangnam-do. A range of fieldwork topics were addressed, focusing on the topographical environment, irrigation infrastructure, and characteristics of rural villages. Discussions also covered the benefits of conducting fieldwork in the neighborhood of school and the need for paying attention to them, the appeal of rural areas as suitable sites for fieldwork exploring both physical and human geography, reviewing cases where geographical relationships can be examined during fieldwork, and the development of positive personal geography through fieldwork. The significance of this study is to confirm the possibility of carrying out geographical fieldwork in rural areas, and to provide reference cases that can be used to apply the contents and activities of this fieldwork in other schools.

진주시 도동 지역의 경관 변화와 지리답사 프로그램 개발

이호욱 대한지리학회 2024 대한지리학회지 Vol.59 No.2

Before the 1970s, the Dodong area of Jinju City had natural settlements and farmlands formed around the foot of the mountain and the natural levee along the Namgang River. During that period, the rest of the floodplain remained largely undeveloped. Afterwards, urban district developed in the Dodong area on the floodplain as a background. In the low-lying land where a river once flowed, open drainage channels were initially installed and subsequently covered. Additionally, parts of the natural levee with a pine field are currently preserved as a park. In order to apply the landscape changes in the Dodong area to regional learning, a geographical fieldwork program was developed focusing on the topics of natural settlement, former river, and fluvial topography. The content and methods of activities were sequenced according to elementary, middle, and high school levels, and the program was composed of introductory education and field learning class. Through this study, it is possible to identify cases of landscape changes in the natural and cultural landscape, and to contribute to the development and accumulation of materials for geography classes centered on the local area.

Toward a Behavioral Theory of Board Involvement in the Strategic Decision Making Process

이호욱,박종훈 한국전략경영학회 2005 전략경영연구 Vol.8 No.1

Despite the increasing acknowledgment of the potential of the boards of directors to make contributions in the strategic decision making of the firm, the research to date has largely ignored the strategic role of the board. However, the new competitive landscape, institutional investors, and the courts have been putting pressure on the boards of directors to be more accountable for the performance of the firm. Thus, it may be time for a renewed emphasis on the strategic role of the board. In this paper, we develop a behavioral theory of board involvement in the strategic decision making process. The model suggests how and with what consequences boards of directors might get involved in the strategic decision making of the firm. More specifically, we argue strategic decision making outcomes, such as decision quality and ultimately firm performance, depends on the cognitive and affective conflict between the CEO and the board. Further, the concepts of power sharing and job-related diversity between the CEO and the board influence both cognitive and affective conflict. 본 연구의 목적은 이사회가 기업의 전략적 의사결정에 참여하는 과정과 참여 결과에 대한 이론적 틀을 제시하는데 있다. 좀 더 구체적으로 본 연구에서는 최고경영자와 이사회 간에 존재하는 갈등을 효과적으로 관리하는 것이 기업의 의사결정과 성과에 매우 중요한 요인임을 주장하고자 한다. 그리고 최고경영자와 이사회 간의 갈등은 최고경영자와 이사회간의 권력분배와 직무관련다양성에 의해 영향을 받는다. 이러한 주장에 대한 시사점과 미래연구 방향에 대해서 토의 하였다.

지방의 종류가 다른 식이의 섭취가 하지고정 흰 쥐의 근 섬유별 근 위축과 PPAR${\delta}$ 활성에 미치는 영향

이호욱,박미나,이연숙,Lee, Ho-Uk,Park, Mi-Na,Lee, Yeon-Sook 한국영양학회 2011 Journal of Nutrition and Health Vol.44 No.5

This study investigated how dietary fat affects muscle atrophy and lipid metabolism in various muscles during hindlimb immobilization in rats. Twenty-four male Sprague?Dawley rats had their left hindlimb immobilized and were divided into four groups by dietary fat content and composition. The contralateral hindlimb (control) was compared with the immobilized limb in all dietary groups. Rats (n = 6/group) were fed a 4% corn oil diet (CO), 2.6% corn oil + 1.4% fish oil diet (FO), 30% corn oil diet (HCO), or a 30% beef tallow diet (HBT)after their hind limbs were immobilized for 10 days. Data were collected for the gastrocnemius, plantaris and soleus muscles. Muscle atrophy was induced significantly after 10 days of hindlimb immobilization, resulting in significantly decreased muscle mass and total muscle protein content. The protein levels of peroxisome proliferator activated receptor ${\delta}$ (PPAR${\delta}$) in the plantaris, gastrocnemius, and soleus increased following hindlimb immobilization irrespective of dietary fat intake. Interestingly, the PPAR${\delta}$ mRNA level in the plantaris decreased significantly in all groups and that in the FO group was lower than that in the other groups. The soleus PPAR${\delta}$ mRNA level decreased significantly following hindlimb immobilization in the FO group only. Muscle carnitine palmitoyl transferase 1 (mCPT1) mRNA level was not affected by hindlimb immobilization. However, the mCPT1 mRNA level in the FO group was significantly lower in the plantaris but higher in the soleus than that in the other groups. The pyruvate dehydrogenase kinase 4 (PDK4) mRNA level in the plantaris decreased significantly, whereas that in the soleus increased significantly following hindlimb immobilization. The plantaris, but not soleus, PDK4 mRNA level was significantly higher in the FO group than that in the CO group. The increased PPAR${\delta}$ protein level following hindlimb immobilization may have suppressed triglyceride accumulation in muscles and different types of dietary fat may have differentially affected muscle atrophy according to muscle type. Our results suggest that ${\omega}$-3 polyunsaturated fatty acids may suppress muscle atrophy and lipid accumulation by positively affecting the expression level and activity of PPAR${\delta}$ and PPAR${\delta}$-related enzymes, which are supposed to play an important role in muscle lipid metabolism.

할인점의 마케팅전략

이호욱 한국산업경영학회 2001 한국산업경영학회 발표논문집 Vol.- No.-

태안반도 촌락가옥의 유형에 관한 연구 - 지붕형태와 지붕재료를 중심으로 -

이호욱 한국문화역사지리학회 2019 문화 역사 지리 Vol.31 No.3

This paper deals with the types of rural housing in the Taean Peninsula with a focus on the roof types and materials for the purpose of understanding the characteristics of rural housing types. The type of rural housing, one of the main themes in cultural geography, explains the rural landscape in the Taean Peninsula and makes it possible to compare the rural area with others. The hip-and-gable roof type, the precoated-steel-plate roof type, and the tile roof type are more dominant in the study area than in other rural areas, probably because of the influence of Yangban culture in the Taean Peninsula. The predominance of the gable roof type and the asphalt-shingle roof type is positively related to the rising new housing construction due to the increasing tourism and the urbanization. On the other hand, the hip roof type and the artificial-slate roof type are strongly connected with the high proportion of old houses that remain unchanged after the roof improvement in the 1970s. This study accounts for the characteristics of rural housing and, hopefully if possible, the landscape of rural settlements in the Taean Peninsula. 이 연구는 지붕형태와 지붕재료를 중심으로 태안반도 촌락가옥의 유형을 분류하고, 태안반도 촌락가옥의 특성을 분석하는 연구이다. 문화지리학의 관심 분야인 촌락가옥 연구를 발전적으로 계승하고, 태안반도 촌락가옥의 유형과 그 변화를 분석한다. 태안반도 촌락에서 팔작지붕 가옥, 컬러강판지붕 가옥, 기와지붕 가옥의 비중이 다른 지역에 비교해서 높게 나타나는데, 이것은 태안반도에 유입된 양반문화의 영향과 밀접한 관련이 있다고 추정된다. 맞배지붕 가옥, 맞배변형지붕 가옥, 아스팔트싱글지붕 가옥의 비중이 높은 것은 관광산업 개발과 도시화의 영향으로 인해 신축 가옥의 증가와 관련이 있다고 본다. 또한 우진각지붕 가옥과 인조슬레이트지붕 가옥의 비중은 1970년대 지붕개량 이후 남아있는 노후화된 가옥의 비중과 관련이 있다고 본다. 지붕형태와 지붕재료의 교차분석을 통해 팔작지붕-컬러강판지붕 가옥, 평지붕-시멘트지붕 가옥, 우진각지붕-인조슬레이트지붕 가옥, 맞배지붕-아스팔트싱글지붕 가옥, 맞배변형지붕-아스팔트싱글지붕 가옥 등이 두드러지게 나타나는 촌락가옥 유형임을 파악할 수 있다. 이 연구를 통해 태안반도 촌락가옥의 유형적 특성을 밝히고, 나아가 태안반도 촌락경관을 이해할 수 있다.

태안반도 산촌 가옥의 유형에 관한 연구

이호욱 한국지역지리학회 2019 한국지역지리학회 학술대회발표집 Vol.2019 No.5

전자문서를통한유비쿼터스실현

이호욱,Lee, Ho-Uk 한국데이터베이스진흥원 2005 디지털콘텐츠 Vol.11 No.-

유비쿼터스업무환경을구축하고자하는노력들이진행되면서전자문서기반의커뮤니케이션의중요성이강조되고있다. 유비쿼터스기술 이 우리 사회에 실질적인 효과를 낼 수 있으려면 이것을 사용하는 인간을 위한 기술로 발전돼야 한다. 전자문서는 이를 활용하는 인간의 필 요에의해만들어져, 인간의활용을통해서효과를내는진정한인간중심의기술발전모델이다.