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The Effect of Teacher's Business Knowledge Distributions on School's Academic Achievement
KOLANDAN Subramaniam,PALTHAMBURAJ Kingston,RETNAM R Kalai Vilanggum Kanimoli,BASRI Azizul Qayyum,MD YASIR5 Ahmad Shah Hizam 한국유통과학회 2023 유통과학연구 Vol.21 No.12
Purpose: Business education is in high demand whereas knowledge is critical for an individual's professional development in general, and for teachers in particular. In this research, the effect of the distributions of teachers’ business knowledge on schools’ achievement were investigated. Research design, data and methodology: This study employs a quantitative method to investigate the level of business knowledge distributions of teachers on schools’ achievement. 155 business studies subject teachers were categorised into 66 respective schools to measure the correlation and regression between teachers’ business knowledge distribution and schools’ achievement. Results: The results of the study show that there is a significant relationship between school achievement from the aspect of teachers’ business knowledge distributions, with the score of, r = 0.345, p < 0.05. The value of R2 shows a moderate relationship between the teachers’ knowledge distributions on school achievement but still plays a role in determining the measurement of the school's level of achievement. Conclusions: It is concluded that the relationship between teacher’s business knowledge and school achievement in the subject of Business Studies is significant. This study proves that the teacher's knowledge about business is very important in guaranteeing the success of students who took this subject.
Yasir Usman,Jinho Kim(김진호),Eduard Muljadi,Yong Cheol Kang(강용철) 대한전기학회 2016 전기학회논문지 Vol.65 No.1
Wake effects cause wind turbine generators (WTGs) within a wind power plant (WPP) to produce different levels of active power and subsequent reactive power capabilities. Further, the impedance between a WTG and the point of interconnection (POI)—which depends on the distance between them—impacts the WPP’s reactive power injection capability at the POI. This paper proposes a voltage control scheme for a WPP based on the available reactive current of the doubly-fed induction generators (DFIGs) and its impacts on the POI to improve the reactive power injection capability of the WPP. In this paper, a design strategy for modifying the gain of DFIG controller is suggested and the comprehensive properties of these control gains are investigated. In the proposed scheme, the WPP controller, which operates in a voltage control mode, sends the command signal to the DFIGs based on the voltage difference at the POI. The DFIG controllers, which operate in a voltage control mode, employ a proportional controller with a limiter. The gain of the proportional controller is adjusted depending on the available reactive current of the DFIG and the series impedance between the DFIG and the POI. The performance of the proposed scheme is validated for various disturbances such as a reactive load connection and grid fault using an EMTP-RV simulator. Simulation results demonstrate that the proposed scheme promptly recovers the POI voltage by injecting more reactive power after a disturbance than the conventional scheme.
Chitinophaga eiseniae sp. nov., isolated from vermicompost.
Yasir, Muhammad,Chung, Eu Jin,Song, Geun Cheol,Bibi, Fehmida,Jeon, Che Ok,Chung, Young Ryun Society for General Microbiology 2011 International journal of systematic and evolutiona Vol.61 No.10
<P>A Gram-negative, rod-shaped bacterial strain, YC6729(T), was isolated from vermicompost collected at Masan, Korea, and its taxonomic position was investigated by a polyphasic taxonomic approach. Strain YC6729(T) grew optimally at 30 °C and at pH 6.5-8.5. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain YC6729(T) belongs to the genus Chitinophaga in the family Chitinophagaceae. It was related most closely to Chitinophaga terrae KP01(T) (96.4???% 16S rRNA gene sequence similarity), Chitinophaga ginsengisegetis Gsoil 040(T) (96.1???%), Chitinophaga arvensicola IAM 12650(T) (96.1???%) and Chitinophaga pinensis DSM 2588(T) (93.3???%). Strain YC6729(T) contained MK-7 as the major menaquinone and homospermidine as the major polyamine. The fatty acids of strain YC6729(T) were iso-C(15???:???0), C(16???:???1)??5c, iso-C(17???:???0) 3-OH, C(16???:???0), anteiso-C(18???:???0) and/or C(18???:???2)??6,9c, iso-C(15???:???0) 2-OH and/or C(16???:???1)??7c, C(14???:???0), iso-C(15???:???0) 3-OH, iso-C(15???:???1) G, C(18???:???1)??5c, iso-C(15???:???1) I and/or C(13???:???0) 3-OH, C(13???:???0) 2-OH, C(16???:???0) 3-OH and unknown fatty acid ECL 13.565. The polar lipid profile contained phosphatidylethanolamine, unknown aminolipids and unknown lipids. The total DNA G+C content of strain YC6729(T) was 48.9 mol%. The phenotypic, chemotaxonomic and phylogenetic data showed that strain YC6729(T) represents a novel species of the genus Chitinophaga, for which the name Chitinophaga eiseniae sp. nov. is proposed. The type strain is YC6729(T) (???=???KACC 13774(T) ???=???DSM 22224(T)).</P>
Embolization of procedure-related upper gastrointestinal bleeding
Yasir Nouri,Ji Hoon Shin,Heung-Kyu Ko,Jong Woo Kim,Hyun-Ki Yoon 소화기인터벤션의학회 2019 Gastrointestinal Intervention Vol.8 No.2
Non-surgical procedure-related, upper gastrointestinal bleeding (UGIB) is considered as one of the rarest of all UGIB causes, although it is a seri-ous complication when it occurs. It presented as hematemesis, melena or hemobilia in which is associated with hepatobiliary intervention. In most patients the bleeding resolves spontaneously and in those in which it does not, the majority respond to conservative management. Endoscopy is the first line of treatment if bleeding does not stop after medical management, although if it failed due to massive bleeding, in hemodynamically un-stable patients or in hepatobiliary procedure-related bleeding, endovascular or surgical intervention should be considered. In this manuscript we will discuss the endovascular diagnosis and treatment of non-surgical procedure-related UGIB.
Yasir Hasan Siddique,Smita Jyoti 한국한의학연구원 2017 Integrative Medicine Research Vol.6 No.3
Background: Oxidative stress is one of the key components of the pathology of various neurodegenerative disorders. Parkinson’s disease (PD) is characterized by the progressive loss of dopaminergic neurons owing to the aggregation of alpha-synuclein (αS) in the brain. A number of polyphenols have been reported to inhibit the αS aggregation resulting in the possible prevention of PD. The involvement of free radicals in mediating the neuronal death in PD has also been implicated. Methods: In the present study, the transgenic flies expressing human αS in the brain were exposed to 10 μM, 20 μM, 40 μM, and 80 μM of apigenin established in diet for 24 days. Results: The flies showed an increase in life span, glutathione, and dopamine content. The exposure of PD flies to various doses of apigenin also results in the reduction of glutathione-S-transferase activity, lipid peroxidation, monoamine oxidase, caspase-3, and caspase-9 activity in a dose-dependent manner. Conclusion: The results of the present study reveal that apigenin is potent in increasing the life span, dopamine content, reduced the oxidative stress as well as apoptosis in transgenic Drosophila model of PD.
Yasir M. Nouri,김진형,Hyun-Ki Yoon,고흥규,신지훈,Dong Il Gwon 대한영상의학회 2019 Korean Journal of Radiology Vol.20 No.1
Conventional transcatheter arterial chemoembolization (c-TACE) is a widely used first-line palliative treatment for patients with unresectable hepatocellular carcinoma (HCC). Despite the effectiveness of c-TACE, to date, technique and procedure scheduling has not yet been standardized. Drug-eluting microspheres (DEMs) were therefore introduced to ensure more sustained and tumor-selective drug delivery for permanent embolization. These DEMs can load various drugs and release them in a sustained manner over a prolonged period. This approach ensures the delivery of high concentrations of chemotherapeutic agents to tumors, without increasing systemic concentrations, and promote tumor ischemia and necrosis. This review summarizes the recent advances in the use of DEM-TACE to treat HCC.
Yasir Amer Jawhar,Khairun Nidzam Ramli,Montadar Abas Taher,Nor Shahida Mohd Shah,Lukman Audah,Mustafa Sami Ahmed,Thamer Abbas 한국전자통신연구원 2018 ETRI Journal Vol.40 No.6
Orthogonal frequency division multiplexing (OFDM) has been the overwhelmingly prevalent choice for high‐data‐rate systems due to its superior advantages compared with other modulation techniques. In contrast, a high peak‐to‐average‐power ratio (PAPR) is considered the fundamental obstacle in OFDM systems since it drives the system to suffer from in‐band distortion and out‐of‐band radiation. The partial transmit sequence (PTS) technique is viewed as one of several strategies that have been suggested to diminish the high PAPR trend. The PTS relies upon dividing an input data sequence into a number of subblocks. Hence, three common types of the subblock segmentation methods have been adopted—interleaving (IL‐PTS), adjacent (Ad‐PTS), and pseudorandom (PR‐PTS). In this study, a new type of subblock division scheme is proposed to improve the PAPR reduction capacity with a low computational complexity. The results indicate that the proposed scheme can enhance the PAPR reduction performance better than the IL‐PTS and Ad‐PTS schemes. Additionally, the computational complexity of the proposed scheme is lower than that of the PR‐PTS and Ad‐PTS schemes.
Yasir Anwar,박희동,Seong-Yeol Baek,여수환 한국응용생명화학회 2013 Applied Biological Chemistry (Appl Biol Chem) Vol.56 No.2
Three yeast strains (designated SHA, SHC, and SHD)exhibiting strong inhibitory effects against soybean lipoxygenase were isolated from Korean nuruk and identified as Issatchenkia orientalis. Total 80 yeast isolates from two major Korean nuruk samples were analyzed by polymerase chain reaction-restriction fragment length polymorphism and phylogenetic analysis. The most abundant yeast was identified as Pichia anomala, comprising 47 out of 80 strains, followed by 15 strains of I. orientalis. All 15I. orientalis strains showed significant inhibitory effects against soybean lipoxygenase, higher than that of Saccahromyces boulardii used as a positive control.