This study was designed to explore effective techniques to be used in IERW (Integrated English Reading and Writing) classes for college students. The study last for 15 weeks and included 457 students and 11 instructors at E University. The participants were freshmen who were taking a compulsory English reading and writing class, and the instructors were seven native English speakers and four Koreans. To ensure the effectiveness of IERW classes, it is important to identify what teaching activities are being used and which activities students prefer. To address these issues, the instructors were interviewed regarding their teaching activities in IERW classes. From the interview results, a survey was made that asked students which class activities they consider useful. The results show that most students responded positively to the activities that the instructors were using, with a preference of around 70 percent. Notably, pair or group activities were rated as less favorable than other activities, with a score of under 50 percent. Some implications of the findings and suggestions for teaching activities for IERW classes are provided.

충청북도농업기술원에서는 연한 분홍색의 향기가 있고, 꽃수가 많으며, 개화기간을 오래 지속할 수 있는 속간 교배종 난 ‘핑키뷰티’를 육성하였다. 신품종 ‘핑키뷰티’는 2007년 Phal. pulcherrima × Phal. parishii 교배종을 모본으로, Neof. falcata ‘Hwacheon’을 부본으로, 속간교배하였다. 종자 발아, 재배, 선발, 특성검정은 2008년부터 2014년까지 진행되었다. 생육이 좋고 꽃의 색, 모양이 우수한 계통을 선발 한후, 2015년부터 2017년까지 3년에 걸쳐 국립종자원 신품종 심사기준으로 특성검정 결과, 우수성이 인정되어 2018년 최종 선발하여 “핑키뷰티”로 명명하였다. 주요 특성은 다음과 같다. 화색은 연분홍색으로 Red-purple Group 68D(RHS칼라차트)이며, 향기가 있고 화경색은 암록색이다. 식물체 크기는 12.7cm로 대조품종과 큰 차이를 보이지 않았다. 잎의 폭은 1.6cm로 대조품종인 P. pulcherrima에 비해 좁은 편이다. 화경장은 25.8 cm이며, 소화수는 16.3개로, 전반적으로 화분의 볼륨감이 우수한 편이다. 꽃의 크기는 2.5cm 정도이며, 꽃의 순판 뒤쪽에 풍란과 같은 짧은 거가 있는 것이 특징이다. 개화기는 5월 하순이며, 개화기간은 34일 정도이다.

We studied the infection rate of and various metacercariocidal approaches to controlling Gymnophalloides seoi for prevention of human infection in cultured and natural oysters in Korea. The selected survey areas were Aphae-do (Shinan-gun, Jeollanam-do), which is an endemic area for G. seoi, and Tongyeong (Geonsangnam-do), which is the main production area of oysters in Korea. In the Tongyeong area, the metacercariae of G. seoi were not detected in cultured oysters (0/201) or wild oysters (0/134). Seventy-two G. seoi metacercariae were observed in 33 of 265 natural oysters collected from Aphae-do; however, metacercariae were not detected in the cultured oysters (0/1101) purchased from the Daejeon Fish Market. To investigate the viability of G. seoi metacercariae, various metacercariocidal treatments were used with 3.5% saline and oyster juice used as positive controls. The metacercariae survived for 75.4 h in 3.5% saline and 112.6 h in oyster juice. After the metacercariocidal treatment, G. seoi metacercariae were survived for 13.29 min in tap water, < 20 sec in 4.3% vinegar, no effect in a rinse of the whole oyster body in 70°C water for 1 sec, but 1 sec in a rinse of the whole oyster body in 90°C water for 1 sec. The greatest metacercariocidal effect on G. seoi was from rinsing oysters in 90°C water followed by those from treatment with 20% ethyl alcohol, 4.3% vinegar, and tap water. However, we suggest that the most actual prevention to G. seoi human infection is rinsing the oysters with tap water for at least 30 min.