최근 새로운 엽채류로 관심받고 있는 루꼴라의 주요 해충에 대한 발생과 피해정보는 물론 주요 해충인 파밤나방을 효율적으로 방제할 수 있 는 살충제를 선발하였다. 2019년부터 2021년까지 경기도 화성과 고양의 루꼴라 포장에서 발생한 해충은 모두 4목 7과 9종이었다. 이중 피해가 높았던 파밤나방에 대해 시판 살충제의 방제 효과를 포장에서 검정한 결과, Spinetoram SC, fluxametamide EC, chlorantraniliprole WG, cyantraniliprole DC, emamectin benzoate EC는 루꼴라 재배 포장 2개소에서 95% 이상의 높은 살충효과를 보였고 2배량에서도 약해가 없어 루꼴라 재배지에서 파밤나방 방제 전용 살충제로 등록되어 이용이 가능할 것으로 판단된다.

본 연구는 우리나라 Holstein의 번식형질에 대한 유전모수를 추정하기 위하여, 2009년부터 2013년까지 분만한 농협 젖소개량사업소의 검정자료 경산우 144,793두의 211,899개의 번식기록을 이용하였다. 7가지 형질의 유전 및 오차 (공)분산을 WOMBAT 패키지를 이용하여 분석하였다. CTFS, GL, NRR, NS, FSTC, DO 및 CI의 유전력은 각각 0.064, 0.060, 0.005, 0.014, 0.012, 0.021 및 0.021로 추정되었다. 형질들 간의 유전상관은 –0.910에서 0.995로 나타났다. NRR과 NS, NRR과 FSTC 간에는 부의 유전상관이 나타났으나, DC와 CI는 강한 양의 유전상관을 나타냈다. CTFS와 FSTC는 DO 및 CI와 유의하게 양의 유전상관관계를 나타냈다(0.479~0.862). CTFS와 FSTC 사이의 낮은 유전상관은 두 형질이 서로 다른 유전적 측면에 있다는 것을 의미한다. 본 연구는 번식능력 개량을 위한 기초 자료를 제공할 수 있을 것이라 판단한다.

The association between the COMT rs4680 (G>A, Val-158-Met) polymorphism and the risk of fibromyalgia has been investigated in previous studies, but the results are controversial. Therefore, a meta-analysis has been performed to confirm the association between COMT rs4680 (G>A, Val-158-Met) polymorphism and the risk of fibromyalgia in this study. Our study includes eleven case-control studies with 2,909 individuals comprised of 1,365 fibromyalgia patients and 1,544 control subjects. The regression analysis was performed using the random effects model or the fixed effects model and OR with the corresponding 95 % CI was calculated for the allele, recessive, dominant, over-dominant, co-dominant 1, and co-dominant 2 model. No statistical significant associations were observed between COMT rs4680 (G>A, Val-158-Met) polymorphism and risk of fibromyalgia in allele model (P-value = 1.00), recessive model (P-value = 1.00), dominant model (P-value = 0.54), co-dominant 1 model (P-value = 1.00) and co-dominant 2 model (P-value = 1.00). In conclusion, our meta-analysis showed that the COMT rs4680(G>A, Val-158-Met) polymorphism might not be genetic risk factor for the fibromyalgia.

In this study, we investigated the Indoor and Outdoor concentrations of PM10 in Y area, Jeollanam-do. We conducted personal exposure concentration estimates, and Exposure and Risk Assessments using the Time-weighted Average Model. The concentration of Indoor PM10 was 49.38 μg/m3 and that of Outdoor PM10 was 48.02 μg/m3, with the Indoor/ Outdoor Ratio value being 1 or more, and it was found that there was an indoor source of pollution. The Indoor/Outdoor Cr ratio value was 1 or more, and the source of Cr was confirmed to be indoor. Based on our analysis, there was a positive correlation between heavy metals Ni, Cr, and Mn (p<0.05). Using the Time-Weighted Average model, we determined the PM10 personal exposure concentration to be 49.36 μg/m3 and confirmed the feasibility of this model in utilizing the PM10 personal exposure concentrations. In this study, the findings are likely to provide useful data that can be used to determine the concentration of indoor pollutants that are not easy to survey. However, to accurately evaluate indoor air quality, more factors need to be considered and evaluated.

We conducted a field survey from 2018 to 2020 to analyze the spatial distribution of phytoplankton communities at 13 stations in the East Sea. The diatom Chaetoceros curvisetus appeared as the dominant species in winter, and small flagellates less than 20 μm prevailed in all seasons except winter. The seasonal average range of the micro (>20 μm), nano (20 μm≥Chl-a>3 μm), and picophytoplankton (≤3 μm) was 20.6-26.2%, 27.1-35.9%, and 40.8-49.0%, respectively. The composition ratio of nano and picophytoplankton was high at the surface mixed layer from spring to autumn when the water columns were strongly stratified. Especially, the stability of the water mass was increased when the summer surface water temperature was higher than that of the previous year. As a result, the nutrient inflow from the lower layer to the surface was reduced as the ocean stratification layer was strengthened. Therefore, the composition ratio of nano and picophytoplankton was the highest at 77.9% at the surface mixed layer. In conclusion, the structure of the phytoplankton community in the East Sea has been miniaturized, which is expected to form a complex microbial food web structure and lower the carbon transfer rate to the upper consumer stage.

When the center of stiffness and the center of mass of the structure differ under the seismic load, torsion is caused by eccentricity. In this study, an analysis model was modeled in which the positions of the core and the plane rotation axis of a 60-story torsional atypical structure with a plane rotation angle of 1 degree per floor were different. The structural behavior of the analysis model was analyzed, and the earthquake response behavior of the structure was analyzed based on the time history analysis results. As a result, as the eccentricity of the structure increased, the eccentricity response was amplified in the high-rise part, and the bending and torsional behavior responses were complex in the low-order vibration mode. As a result of the analysis, the maximum displacement and story drift ratio increased due to the torsional behavior. The maximum story shear force and the story absolute maximum acceleration showed similarities for each analysis model according to the shape of the vibration mode of the analysis model.