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The Effect of Synthetic Phonics on the Development of Reading Skills in L1 and L2
Lanny Hidajat,Yosephine Susanto,Angeline Iskandar 아시아영어교육학회 2017 The Journal of Asia TEFL Vol.14 No.3
This research investigated the effect of using synthetic phonics for teaching Indonesian young learners to read in English and Indonesian. Since English orthography is very different from Indonesian orthography, the use of synthetic phonics for teaching Indonesian young EFL learners to read in English potentially affects the development of their skills to read in Indonesian. To verify this assumption, the researchers analyzed the development of the skills for decoding English and Indonesian sounds represented by ‘a’, ‘u’, and ‘o’ within five months in K-2 students from two kindergartens. In one kindergarten, the teacher used synthetic phonics to teach English. In the other, the teacher used the MIKids program. The results of this research indicate that the synthetic phonics method might be less effective when it is used for teaching reading in English in Indonesia. In addition, it can potentially impede the development of skills for reading in Indonesian.
Analyzing the Impact of Pandemics on Air Passenger and Cargo Demands in South Korea
Jungtae Song,Irena Yosephine,Sungchan Jun,Chulung Lee 한국항공운항학회 2023 한국항공운항학회지 Vol.31 No.1
글로벌 팬데믹 사태는 항공 수요에 부정적인 영향을 끼치는 요소 중 하나다. 글로벌 팬데믹으로 인해 한국은 2020년과 2021년의 항공 승객 수가 2019년 대비 각각 68.1%와 47% 감소했다. 본 연구는 지난 20여년 동안 발생한 4대 팬데믹 특성을 분석, 전염병의 영향을 연구하는 것을 목표로 한다. SARS, H1N1, MERS 및 COVID-19의 발생기간 동안 한국의 항공 여객 및 화물 수요에 대한 실증 데이터를 활용하여 영향력을 분석한다. 또한 머신러닝 회귀 모델을 구축하여 향후 발생할 다른 전염병 대한 항공 수요를 예측하고자 한다. 연구 결과, 전염병이 항공 운항편수와 승객에 부정적인 영향을 미친다는 사실을 발견하였다. 반면화물 수송에는 긍정적인 영향을 미친다는 분석 결과를 도출하였다. 본 분석에 활용되는 회귀 모델은 팬데믹 기간 동안 항공수요를 예측하는 데 평균 86.8%의 기능을 보였다. 또한 본 연구는 특정 국가의 팬데믹 상황보다 전 세계적인 팬데믹 상황이 항공 운송 수요에 더 많은 영향을 미친다는 것을 보여준다.
Naning Yuniarti,Yulianti,Dede J. Sudrajat,Nurhasybi,Muhammad Zanzibar,Dida Syamsuwida,Nina Mindawati,Ahmad Junaedi,Kurniawati Purwaka Putri,Evayusvita Rustam,Nurin Widyani,Yosephin Martha 한국산림과학회 2023 Forest Science And Technology Vol.19 No.3
Red jabon (Neolamarckia macrophylla) is one of potential tree species, but there are some problems in its cultivation. Intermediate seed character and very small seed sizes with little food reserves often cause the low germination, low growth of the seedlings, and the sowing of the seeds to be too dense, resulting in an abnormal number of seedlings. The purpose of the research was to improve the seed germination and seedling quality of red jabon by adjusting the sowing density and seed invigoration treatment using hormonal and bioprim- ing. Two experiments were conducted, that is, (1) identification of optimal seed density on the several combinations of sowing media (top soil, rice husk and compost) and (2) evalu- ation of the most suitable hormonal priming (GA3) and biopriming (liquid organic fertilizer, LOF) applications. The use of top soil media with a seed density of 0.5 g/400 cm2 can pro- duce the highest pure live seed (PLS), that is, 721.67 seedlings/0.5 g. The seed treated by hormonal and bio-priming significantly affected the seed germination and seedling growth. Soaking seed in GA3 100 ppm for 4 days produced the highest of the PLS (764 seedling- s/0.5 g), followed by soaking in LOF for 3 days and GA3 50 ppm for 4 days. The highest seed- ling height was generated from soaking the seeds using LOF for 3 days. The highest root collar diameter and biomass of red jabon seedlings were obtained from the treatment of seeds immersed in the GA3 50 ppm for 3 days. The best quality index value of red jabon seedlings was produced from the treatment of seeds immersed in the hormone GA3 50 ppm for 3 days. In general, a sowing density of 0.5 g/400 cm2 in top soil media and seed soaking treatment in GA3 50 ppm or LOF for 3 days can improve germination and growth of red jabon seedlings.