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A case report of complete cricotracheal separation: an experience from the east coast of Malaysia
Rozhan Atikah,Mohamad Adam,Rajet Khairul Azhar M.,Ahmad Mohd Zaki,Yusof Suhaimi Bin,Mohamed Wan Emelda Wan,Susibalan Bathma Devi,Ghani Nik Mohd Syukra Nik Abd,Asha’ari Zamzil Amin Bin 대한외상학회 2022 大韓外傷學會誌 Vol.35 No.4
Complete cricotracheal separation, which is the most severe type of laryngeal trauma, is an uncommonly seen injury that clinicians have limited experience in managing. However, it is potentially fatal. Due to limited exposure to this condition, mismanagement can occur, which may further aggravate the patient’s condition. The most crucial part of managing this injury is to establish a secure airway. Tracheostomy under local anesthesia is the preferred method of airway stabilization, in order to avoid further injuries to the airway caused by endotracheal intubation. Here, we discuss the management of complete cricotracheal separation based on a case experienced in the east coast region of Malaysia, where this type of injury is rarely encountered.
Determinants of Improving the Financial Security of Retired Women in Malaysia
ZAINUDDIN, Halimatul Nadia,MOHAMAD, Nor Edi Azhar,RAJADURAI, R. Jegatheesan V.,SAPUAN, Noraina Mazuin,SANUSI, Nur Azura Korea Distribution Science Association 2022 The Journal of Asian Finance, Economics and Busine Vol.9 No.6
The perspectives on aging women's financial security during their retirement years are based on their behavior, planning, and decision-making processes during their working years. Elderly women are considered vulnerable and have a longer life expectancy, lower-income, and limited financial understanding compared to males; therefore, drastic steps need to be taken to improve their financial stability and quality of life. The current study sought to determine the most important contributors to retired women's financial health by measuring the value of four factors/variables: capability, opportunity, willingness, and biopsychosocial. This study used a mixed model approach, with qualitative analysis in the first phase involving a focus group discussion session, a pilot analysis, and quantitative analysis for phase two involving the distribution and collection of questionnaires completed by retired women. The surveys were distributed across Malaysia in five distinct zones and yielded 339 usable replies to support the theory. The outcomes of the Multiple Regression Analysis in Malaysia revealed that capability, opportunity, and biopsychosocial factors are significant predictors of retired women's financial security, whereas the willingness indicator lacked statistical significance.
Wong, Yin-Ping,Shah, Shamsul Azhar,Shaari, Noorsajida,Mohamad Esa, Mohd Shafbari,Sagap, Ismail,Isa, Nurismah Md Asian Pacific Journal of Cancer Prevention 2014 Asian Pacific journal of cancer prevention Vol.15 No.4
Management of patients with stage II colorectal carcinomas remains challenging as 20 - 30% of them will develop recurrence. It is postulated that these patients may harbour nodal micrometastases which are imperceptible by routine histopathological evaluation. The aims of our study were to evaluate (1) the feasibility of multilevel sectioning method utilizing haematoxylin and eosin stain and immunohistochemistry technique with cytokeratin AE1/AE3, in detecting micrometastases in histologically-negative lymph nodes, and (2) correlation between nodal micrometastases with clinicopathological parameters. Sixty two stage I and II cases with a total of 635 lymph nodes were reviewed. Five-level haematoxylin and eosin staining and one-level cytokeratin AE1/AE3 immunostaining were performed on all lymph nodes retrieved. The findings were correlated with clinicopathological parameters. Two (3.2%) lymph nodes in two patients (one in each) were found to harbour micrometastases detected by both methods. With cytokeratin AE1/AE3, we successfully identified four (6.5%) patients with isolated tumour cells, but none through the multilevel sectioning method. Nodal micrometastases detected by both multilevel sectioning and immunohistochemistry methods were not associated with larger tumour size, higher depth of invasion, poorer tumour grade, disease recurrence or distant metastasis. We conclude that there is no difference between the two methods in detecting nodal micrometastases. Therefore it is opined that multilevel sectioning is a feasible and yet inexpensive method that may be incorporated into routine practice to detect nodal micrometastases in centres with limited resources.
Acoustic characteristic of bio-composite micro-perforated panel (BC-MPP) backed with natural fiber
Faridah Wahab,Tan Wei Hong,Mohamad Haziman Mohamad Azhar,Nor Hafizul Hilni Abdul Rahman 대한기계학회 2023 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.37 No.11
We investigated the sound absorption properties of a bio-composite microperforated panel (BC-MPP) with a combination of backed-structure and several types of natural fibers such as loofah, kapok, and coconut coir. The sound absorption coefficient (SAC) of different combinations of natural fibers samples was obtained by using a two-microphone impedance tube. In addition, three models, including Delany-Bazley model, Maa theory, and electroacoustical analogy, were employed to estimate the SAC value of natural fiber, BC-MPP, and BC-MPP with a backed structure, respectively. The experimental results demonstrate that the SAC value was increased to almost 0.99 as compared to BC-MPP alone when natural fiber was introduced at the back of BC-MPP either by insertion in the hole of backed structure or attached directly at the back of BC-MPP. The SAC peak also shifted to a lower frequency bandwidth with the highest peak obtained at 930 Hz, 800 Hz and 640 Hz for MPP with coconut husk, BC-MPP with kapok and BC-MPP with loofah, respectively. The absorption frequency was also observed slightly wider than BC-MPP without natural fiber. In comparison of BC-MPP with loofah and BC-MPP with others natural fibers, the insertion of kapok and coconut coir in the hole of backed structure provides a wider effective sound absorption coefficient. The comparison of experimental result with the theoretical calculation shows that the SAC obtained from experiment provides higher SAC value over the theoretical model for both BC-MPP and BCMPP backed structure.
Zakaria Mohd Aizuddin,Abdul Razab Mohammad Khairul Azhar,Adenan Mohd Zulfadli,Ahmad Muhammad Zabidi,Tajudin Suffian Mohamad,Samson Damilola Oluwafemi,Abdul Aziz Mohd Zahri 한국원자력학회 2024 Nuclear Engineering and Technology Vol.56 No.1
Ceramic materials are being explored as alternatives to toxic lead sheets for radiation shielding due to their favorable properties like durability, thermal stability, and aesthetic appeal. However, crafting effective ceramics for radiation shielding entails complex processes, raising production costs. To investigate local viability, this study evaluated Malaysian ceramic tiles for shielding in diagnostic X-ray rooms. Different ceramics in terms of density and thickness were selected from local manufacturers. Energy Dispersive X-ray Fluorescence (EDXRF) and X-ray Fluorescence (XRF) characterized ceramic compositions, while Monte Carlo Particle and Heavy Ion Transport code System (MC PHITS) simulations determined Linear Attenuation Coefficient (LAC), Half-value Layer (HVL), Mass Attenuation Coefficient (MAC), and Mean Free Path (MFP) within the 40–150 kV energy range. Comparative analysis between MC PHITS simulations and real setups was conducted. The C3–S9 ceramic sample, known for homogeneous full-color structure, showcased superior shielding attributes, attributed to its high density and iron content. Notably, energy levels considerably impacted radiation penetration. Overall, C3–S9 demonstrated strong shielding performance, underlining Malaysia’s potential ceramic tile resources for Xray room radiation shielding.
Arshad Naji Alhasnawi,Che Radziah Che Mohd Zain,Ahsan A. Kadhimiv,Anizan Isahakb,Azhar Mohamad,Mehdi Farshad Ashraf,Wan Mohtar Wan Yusoff 한국작물학회 2016 Journal of crop science and biotechnology Vol.19 No.5
Salt stress is considered to be the most important abiotic stress and is the main problem in the interruption of the metabolic processes of plants, thereby limiting crop production. The present study was carried out to examine the effects of exogenously applied mushroom polysaccharides (β-glucan) on the growth of two rice varieties of Oryza sativa L. (MRQ74 and MR269) seedlings grown in vitro in 200 Mm sodium chloride (NaCl). Growth characteristics, including shoot and root height, and fresh and dry weight of salt-stressed rice seedlings were inhibited by sodium chloride treatment, the degree of which depends on the rice variety. The negative effects of salinity stress resulted in an imbalance of N, K + Na + and Na/K ratios and biochemical analysis activities a degradation of chlorophyll content in the plants. However, treatment with exogenously applied polysaccharides (β-glucan) ameliorated the stress generated by NaCl and improved the parameters mentioned above. The significance of the changes in growth and metabolism to salt stress tolerance in rice seedlings are discussed in the paper.
Aneis Maasyirah Hamzah,Siti Koriah Zakaria,Siti Zuliana Salleh,Abdul Hafidz Yusoff,Arlina Ali,Mardawani Mohamad,Mohamad Najmi Masri,Sharizal Ahmad Sobri,Mustaffa Ali Azhar Taib,Faisal Budiman,Pao Ter 한양대학교 세라믹연구소 2021 Journal of Ceramic Processing Research Vol.22 No.2
In this work, the effect of various weight percentage of rice husk ash (RHA) in ceramic brick production was investigated interms of mineralogical, physical, chemical and morphological properties. The evaluation of the use of RHA as a raw materialfor ceramic products is tested to determine the linear shrinkage, volumetric shrinkage, water absorption, apparent density andbulk density. These physical results suggested that the addition of RHA can improve the physical properties of ceramic brick. Scanning electron microscopy images confirmed the increased of ceramic strength with the addition of RHA and firingtemperature. In addition, quantitative and qualitative chemical analysis supported the results obtained. Overall, the resultsdemonstrated the high potential of RHA in green technology for ceramic production.