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Chee-Hong Law,Chee-Lip Tee,Lau, Wei-Theng 한국국제경제학회 2019 International Economic Journal Vol.33 No.2
This paper investigates the short-run and long-run effects of financial integration on the dynamics between monetary independence and foreign exchange reserves using a GMM system estimation involving two-year non-overlapping average data (2000-2011) from 114 countries. The results indicate that the effect of foreign exchange reserves on the monetary independence is intensified by the level of financial integration. This suggests a positive spill over effect from the financial integration to the monetary policy independence. Besides, a positive implication of financial integration on monetary independence could be established when the foreign exchange reserves is at the maximum level. In addition, the comparisons between the mean of foreign exchange reserves and the threshold levels of foreign exchange reserves that neutralise the impact of financial integration indicate that on average, the foreign exchange reserves are sufficient to offset the effect of financial integration. A stable exchange rate will undermine the positive impact of foreign exchange reserves on monetary independence. Finally, the long-run and short-run impacts occur in the same direction. This paper ends with some policy implications and suggestions for future research.
Nazreen Saidi,Jugah Kadir,Lau Wei Hong 한국잔디학회 2016 Weed & Turfgrass Science Vol.5 No.3
Goosegrass [Eleusine indica (L.) Gaertn] has been a nuisance to growers in Malaysia due to its increased resistance to commercial herbicides, rapid growth and dissemination, and interference with agricultural practices. In the course of developing an apt integrated management to control goosegrass, more information of this weed is needed. The aim of this study was to look into variations among the goosegrass ecotypes sampled throughout Malaysia from the aspects of genotype and phenotype. Sequence-related amplified polymorphism (SRAP) markers were employed in investigating the genetic diversity and relationships among the 18 goosegrass ecotypes. Consequently, 5 primer combinations amplified 13 fragments with the polymorphism rate of 69.23%. At 74% similarity, the ecotypes were clustered into 6 groups. Phenotypic variability of the goosegrass ecotypes was assessed by observing their morphology, growth and seed traits. Goosegrass ecotypes were sorted into 3 major groups at the genetic distance (DIST) of 0.37. Concurrences of the evaluated genetic distance, ecotypes with the closest and most distant relationships were assembled together in Group I which showed high variation even among ecotypes in the same group. Results obtained thus implied high molecular and morphological variations of the goosegrass ecotypes in Malaysia.
Saidi, Nazreen,Kadir, Jugah,Hong, Lau Wei The Korean Society of Weed ScienceThe Turfgrass So 2016 Weed & Turfgrass Science Vol.5 No.3
Goosegrass [Eleusine indica (L.) Gaertn] has been a nuisance to growers in Malaysia due to its increased resistance to commercial herbicides, rapid growth and dissemination, and interference with agricultural practices. In the course of developing an apt integrated management to control goosegrass, more information of this weed is needed. The aim of this study was to look into variations among the goosegrass ecotypes sampled throughout Malaysia from the aspects of genotype and phenotype. Sequence-related amplified polymorphism (SRAP) markers were employed in investigating the genetic diversity and relationships among the 18 goosegrass ecotypes. Consequently, 5 primer combinations amplified 13 fragments with the polymorphism rate of 69.23%. At 74% similarity, the ecotypes were clustered into 6 groups. Phenotypic variability of the goosegrass ecotypes was assessed by observing their morphology, growth and seed traits. Goosegrass ecotypes were sorted into 3 major groups at the genetic distance (DIST) of 0.37. Concurrences of the evaluated genetic distance, ecotypes with the closest and most distant relationships were assembled together in Group I which showed high variation even among ecotypes in the same group. Results obtained thus implied high molecular and morphological variations of the goosegrass ecotypes in Malaysia.
( Tian Yang ),( Li-yang Sun ),( Lei Liang ),( Ya-hao Zhou ),( Wei-min Gu ),( Hong Wang ),( Ting-hao Chen ),( Yong-yi Zeng ),( Wan Yee Lau ),( Meng-chao Wu ),( Feng Shen ) 대한간학회 2020 춘·추계 학술대회 (KASL) Vol.2020 No.1
Aims: Postoperative morbidity following hepatectomy remains high, and understanding its risk factors is important to improve perioperative outcomes. We aimed to identify the role of two non-invasive markers - albumin-bilirubin (ALBI) and aspartate transaminase to platelet ratio index (APRI) - in predicting postoperative morbidity following hepatectomy for hepatocellular carcinoma (HCC). Methods: A multicenter data of patients undergoing hepatectomy for HCC at 8 centers were retrospectively analyzed. These patients were divided into normal and high groups according to preoperative ALBI and APRI scores. ALBI and APRI’s predictive accuracy of postoperative 30-day overall and major morbidity were evaluated by the area under the receiver operating characteristic curve (AUC) and compared with two conventional scores: Child-Pugh grade and model for end-stage liver disease (MELD). Results: In 2,301 patients, 866 (37.6%) and 400 (17.4%) were in the high ALBI and APRI groups, respectively. There were significant differences of postoperative overall morbidity between the normal and high ALBI groups (26.2% vs. 40.1%, P<0.001), as well as between the normal and high APRI groups (29.2% vs. 42.4%, P<0.001). The AUCs of the ALBI and APRI scores for predicting overall morbidity are greater than those of Child- Pugh grade and MELD score. Multivariable analyses revealed that ALBI and APRI were independent predictors of overall morbidity in both preoperative and postoperative prediction models. Similar results existed in predicting postoperative major morbidity. Conclusions: Preoperative ALBI and APRI could predict postoperative 30-day overall and major morbidity following hepatectomy for HCC before or after surgery.
Amirthalingam Vinailosni,Ataa Nur Syuhada Mohd,Mahmuddin Siti Sarah,Adam Nur Azura,Nai Yu-Shin,Lau Wei Hong 한국응용곤충학회 2024 Journal of Asia-Pacific Entomology Vol.27 No.1
Heterotrigona itama and Geniotrigona thoracica become popular in Malaysia as honey producer in the 21st century. Like other bee species, stingless bees can be infected by pathogens. Disease-related population declines may affect honey production, agricultural productivity, and biodiversity. Thus, this study aimed to evaluate the health status of stingless bee colonies in selected bee farms in Malaysia. Adults Heterotrigona itama and Geniotrigona thoracica were collected from 79 colonies in 9 farms and screened for known pathogens of honey bees and stingless bees using 15 primer sets. All results were negative, indicating the absence of these pathogens in the bee specimens. During the bee sampling at Infoport Halal Hub UPM, we encountered a collapsed colony of H. itama. A fungal isolate was isolated and confirmed to be Aspergillus caelatus. Virulence tests revealed that A. caelatus exhibited high virulence to both H. itama and G. thoracica. Infected larvae became lethargic after 1–2 day after treatment (DAT) with white mycelium developed on their integument. The fungus caused 100 % larval mortality in both H. itama and G. thoracica after 8 DAT, with LC 50 values of 7.58 × 10 3 conidia/µl and 6.24 × 10 3 conidia/ µl respectively. Yellow-green conidia were observed on the cadavers. A. caelatus demonstrated high virulence towards both H. itama and G. thoracica, leading to severe larval mortality. This study represents the first documented case of a disease infecting stingless bees in Malaysia. Future research is needed to assess the prevalence of A. caelatus in various stingless bee species and other pollinators within the country.