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Search Results: 1 - 10 of 3282 matches for " Azizah Mohd Zahidi "
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Socrative in Teaching Tenses: Indonesian Students and Lecturers’ Perceptions  [PDF]
Maslawati Mohamad, Dafita Dwi Lestari, Azizah Mohd Zahidi, Mohd Effendi Mohd Matore
Creative Education (CE) , 2019, DOI: 10.4236/ce.2019.101010
Mastering a language not only involves four language skillslistening, speaking, reading, and writingbut also mastering the grammar and vocabulary of the language. This research was intended to investigate the perceptions of Indonesian undergraduates and their lecturers at the Islamic University of Riau toward the use of Socrative in grammar class specifically tenses. This study employed a quantitative research design. The respondents were 34 sixth-semester undergraduates who were randomly chosen and two grammar lecturers at the English Department of Islamic University of Riau in the academic year 2016/2017. The questionnaire was adapted from the technology acceptance model (TAM) by Davis, which consists of two specific variables: Perceived usefulness and perceived ease of use. Before the questionnaire was employed in this study, a pilot study was carried out to ensure the validity and reliability of the instrument. The findings of the research show the majority of respondents have positive perceptions toward Socrative. The students and lecturers provide positive responses with regard to “perceived usefulness and ease of use” of Socrative in grammar class. It is hoped that this tool not only could be used in grammar class but also in all aspects of English language learning. It is also expected that this research could assist Indonesian educators to teach more creatively.
New Algorithm for Listing All Permutations
Haslinda Ibrahim,Zurni Omar,Azizah Mohd. Rohni
Modern Applied Science , 2010, DOI: 10.5539/mas.v4n2p89
Abstract: The most challenging task dealing with permutation is when the element is large. In this paper, a new algorithm for listing down all permutations for n elements is developed based on distinct starter sets. Once the starter sets are obtained, each starter set is then cycled to obtain the first half of distinct permutations. The complete list of permutations is achieved by reversing the order of the first half of permutation. The new algorithm has advantages over the other methods due to its simplicity and easy to use.
Free Convection over a Vertical Plate in a Micropolar Fluid Subjected to a Step Change in Surface Temperature
Azizah Mohd. Rohni,Zurni Omar,Adyda Ibrahim
Modern Applied Science , 2009, DOI: 10.5539/mas.v3n1p22
Abstract: The Keller box method has been employed for free convection over a vertical plate subjected to a step change in surface temperature in micropolar fluid. Numerical results presented include the reduced angular velocity profiles, development of wall shear stress or skin friction and development of the rate of change of the gyration component at the wall for various values of Prandtl numbers and temperature ratios. The study shows that the present results obtained in micropolar fluids, when temperature ratio , agree very well with the previous study without temperature change.
Planting Values for Saving Groundwater through Family Education  [PDF]
Azizah Husin
Journal of Environmental Protection (JEP) , 2019, DOI: 10.4236/jep.2019.105034
Abstract: This study aims to determine the planting values for saving groundwater through family education in Larangan Selatan sub-district of Tangerang. The research respondents were parents from 40 families in Citizen Association (RW) 10 Cileduk Tangerang. Data collection techniques using questionnaires, sampling techniques using purposive sampling. Research instruments include planting water-saving values through explanation, giving examples, reminding, direct reprimand, telling, getting used to. For observing, focus that be observed were 4 things on the house yard of respondent, were about: The provision of bio pores, rainwater infiltration ponds, the provision of land in the yard, increasing vegetation in the yard. The results of the study showed that parents carrying out educational tasks, namely instilling economical value in the use of groundwater were in good category, namely they conveyed to their children to save water. Parents often rebuke directly if it is seen that children do not use water sparingly. The result of the observation is the houses still provide land for rainwater infiltration and they are all plant a yard with plant and flowers on a pot. There is no houses has biopory and rain fed wells. For this reason, it is recommended that the head of citizen association (RW) give an example and invite community leaders who can explain the importance of instill low value in using water.
Piper sarmentosum inhibits ICAM-1 and Nox4 gene expression in oxidative stress-induced human umbilical vein endothelial cells
Azizah Ugusman, Zaiton Zakaria, Chua Hui, Nor Megat Mohd Nordin
BMC Complementary and Alternative Medicine , 2011, DOI: 10.1186/1472-6882-11-31
Abstract: HUVECs were divided into four groups:- control; treatment with 180 μM hydrogen peroxide (H2O2); treatment with 150 μg/mL AEPS and concomitant treatment with AEPS and H2O2 for 24 hours. Total RNA was extracted from all the groups of HUVEC using TRI reagent. Subsequently, qPCR was carried out to determine the mRNA expression of NF-κB, VCAM-1, ICAM-1, E-selectin, Nox4, SOD1, CAT and GPx. The specificity of the reactions was verified using melting curve analysis and agarose gel electrophoresis.When stimulated with H2O2, HUVECs expressed higher level of ICAM-1 (1.3-fold) and Nox4 (1.2-fold) mRNA expression. However, AEPS treatment led to a reduction in the mRNA expression of ICAM-1 (p < 0.01) and Nox4 (p < 0.05) in the H2O2-induced HUVECs. AEPS also upregulated the mRNA expression of SOD1 (p < 0.05), CAT (p < 0.01) and GPx (p < 0.05) in oxidative stress-induced HUVECs. There was no significant change in the mRNA expression of VCAM-1 and E-selectin.The expressional suppression of ICAM-1 and Nox4 and induction of antioxidant enzymes might be an important component of the vascular protective effect of AEPS.Atherosclerosis has been recognized as a chronic inflammatory disease and oxidative stress plays a pivotal role in its initiation and progression [1]. Endothelial dysfunction is considered to be an early marker for atherosclerosis [2]. Evidence suggests that increased production of reactive oxygen species (ROS) and vascular inflammation play important roles in endothelial dysfunction.Vascular disorders, through over expression of adhesion molecules and cytokines are involved in the development of atherosclerosis. Endothelial cells in human atherosclerotic lesions have increased cell adhesion molecules expression such as intercellular adhesion molecule-1 (ICAM-1), vascular cell adhesion molecule-1 (VCAM-1) and endothelial selectin (E-selectin) [3,4]. The adhesion of monocytes to the arterial wall and their subsequent infiltration and differentiation into macrophages are th
Effect of Freeze-Drying on the Antioxidant Compounds and Antioxidant Activity of Selected Tropical Fruits
Norshahida Mohamad Shofian,Azizah Abdul Hamid,Azizah Osman,Nazamid Saari,Farooq Anwar,Mohd Sabri Pak Dek,Muhammad Redzuan Hairuddin
International Journal of Molecular Sciences , 2011, DOI: 10.3390/ijms12074678
Abstract: The effects of freeze-drying on antioxidant compounds and antioxidant activity of five tropical fruits, namely starfruit ( Averrhoa carambola L.), mango ( Mangifera indica L.), papaya ( Carica papaya L.), muskmelon ( Cucumis melo L.), and watermelon Citruluss lanatus (Thunb.) were investigated. Significant ( p < 0.05) differences, for the amounts of total phenolic compounds (TPC), were found between the fresh and freeze-dried fruit samples, except muskmelon. There was no significant ( p > 0.05) change, however, observed in the ascorbic acid content of the fresh and freeze-dried fruits. Similarly, freeze-drying did not exert any considerable effect on β-carotene concentration of fruits, except for mango and watermelon, where significantly ( p < 0.05) higher levels were detected in the fresh samples. The results of DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging and reducing power assays revealed that fresh samples of starfruit and mango had relatively higher antioxidant activity. In case of linoleic acid peroxidation inhibition measurement, a significant ( p < 0.05) but random variation was recorded between the fresh and freeze-dried fruits. Overall, in comparison to β-carotene and ascorbic acid, a good correlation was established between the result of TPC and antioxidant assays, indicating that phenolics might have been the dominant compounds contributing towards the antioxidant activity of the fruits tested.
Corporal Punishment Study: A Case in Malaysia  [PDF]
Narasappa Kumaraswamy, Azizah Othman
Psychology (PSYCH) , 2011, DOI: 10.4236/psych.2011.21004
Abstract: The study investigates the occurrence of childhood corporal punishment at home on a sample of participants who resided in the northeast of Malaysia, Kelantan. The Discipline Questionnaire (DQ) - a 32-item self-report instrument was completed by 196 medical students studying in fourth and fifth year at School of Medical Sciences Universiti Sains Malaysia (USM). The participants were asked about the type, frequency, and severity of parental corporal punishment they remembered to receive at home during childhood, in addition to their attitudes toward corporal punishment on children. Sixty three percent of participants remembered being corporally punished at home, as children. Only 3% of them reported that the punishment reaches an abusive level – which was defined as physical punishment that results in welts, bruises, bone fractures or breaks, or large/deep cuts. Pinching was the most commonly reported types of punishment used at home (35%), followed by slapping on the hand, arm or leg (31%), whipping using flexible material such as leather or rope (23%), and spanking/slapping on the buttocks with open hand (20%). The study indicates that on average the participants had a fairly favorable attitude towards corporal punishment. The findings suggest that majority of parents in Malaysia have been using corporal punishment on their children – primarily of mild types. Generally, the participants have had a fairly favorable attitude towards corporal punishment. Corporal punishment in this context is not perceived as an action of abusing a child, but rather one of many ways to teach the child a lesson in life.
Genetic structure of the snakehead murrel, Channa striata (channidae) based on the cytochrome c oxidase subunit I gene: influence of historical and geomorphological factors
Jamaluddin, Jamsari Amirul Firdaus;Pau, Tan Min;Siti-Azizah, Mohd Nor;
Genetics and Molecular Biology , 2011, DOI: 10.1590/S1415-47572011000100026
Abstract: nucleotide sequences of a partial cytochrome c oxidase subunit i gene were used to assess the manner in which historical processes and geomorphological effects may have influenced genetic structuring and phylogeographic patterns in channa striata. assaying was based on individuals from twelve populations in four river systems, which were separated into two regions, the eastern and western, of the biodiversely rich state of perak in central peninsular malaysia. in 238 specimens, a total of 368-bp sequences with ten polymorphic sites and eleven unique haplotypes were detected. data on all the twelve populations revealed incomplete divergence due to past historical coalescence and the short period of separation. nevertheless, samova and fst revealed geographical structuring existed to a certain extent in both regions. for the eastern region, the data also showed that the upstream populations were genetically significantly different compared to the mid- and downstream ones. it is inferred that physical barriers and historical processes played a dominant role in structuring the genetic dispersal of the species. a further inference is that the grik, tanjung rambutan and sungkai are potential candidates for conservation and aquaculture programmes since they contained most of the total diversity in this area.
Isolation and multiplex genotyping of polymorphic microsatellite DNA markers in the snakehead murrel, Channa striata
Jamsari, Amirul Firdaus Jamaluddin;Min-Pau, Tan;Siti-Azizah, Mohd Nor;
Genetics and Molecular Biology , 2011, DOI: 10.1590/S1415-47572011005000007
Abstract: seven polymorphic microsatellite loci were isolated and characterized for the snakehead murrel, channa striata (channidae), a valuable tropical freshwater fish species. among 25 specimens collected from kedah state in malaysia, the number of alleles per locus ranged from 2 to 7. observed and expected heterozygosities ranged from 0.120 to 0.880 and 0.117 to 0.698, respectively. a single locus (cs1-c07) was significantly deviated from hardy-weinberg equilibrium after bonferroni correction. these novel markers would be useful for population genetic studies of the c. striata.
Piper sarmentosum increases nitric oxide production in oxidative stress: a study on human umbilical vein endothelial cells
Ugusman, Azizah;Zakaria, Zaiton;Hui, Chua Kien;Nordin, Nor Anita Megat Mohd;
Clinics , 2010, DOI: 10.1590/S1807-59322010000700010
Abstract: objective: nitric oxide produced by endothelial nitric oxide synthase (enos) possesses multiple anti-atherosclerotic properties. hence, enhanced expression of enos and increased nitric oxide levels may protect against the development of atherosclerosis. piper sarmentosum is a tropical plant with antioxidant and anti-inflammatory activities. this study aimed to investigate the effects of piper sarmentosum on the enos and nitric oxide pathway in cultured human umbilical vein endothelial cells (huvecs). methods: huvecs were divided into four groups: control, treatment with 180 μm hydrogen peroxide (h2o2), treatment with 150 μg/ml aqueous extract of piper sarmentosum, and concomitant treatment with aqueous extract of ps and h2o2 for 24 hours. subsequently, huvecs were harvested and enos mrna expression was determined using qpcr. the enos protein level was measured using elisa, and the enos activity and nitric oxide level were determined by the griess reaction. results: human umbilical vein endothelial cells treated with aqueous extract of piper sarmentosum showed a marked induction of nitric oxide. treatment with ps also resulted in increased enos mrna expression, enos protein level and enos activity in huvecs. conclusion: aqueous extract of piper sarmentosum may improve endothelial function by promoting no production in huvecs.
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