Usage Of E-Journals Among Undergraduates at Unisel Library, Bestari Jaya Campus / Nur Adna Roduan

This report is a result of a study carried out at UNISEL Library, Bestari Jaya Campus on the usages of e-journals by the undergraduate students. This report aims to investigate the purpose of using e-journal resources, to identify barriers in using e-journals services and to identify e-journals impact on completing their assignments and tasks. Qualitative method were used to collect relevant data from the students by conducting semi-structure interview. The interview questions were designed to gather information about the awareness of e-journals, ways the students identify the sources they use, influences of usage, the factors encouraging their use, and the major barriers in term of using them effectively. In addition, the researcher also sought information on the impact of incorporating e-journals in their assignments, research and tasks and their experiences in using e-journals. In this study, data were coded thematically to analyse and interpret the data collected during the interview sessions. Twenty undergraduate students from four faculties in UNISEL Bestari Jaya Campus constituted the respondents of the study. The findings showed that all respondents are aware of the availability of e-journals resources in the library and largely use them for reference purposes in their research and assignments. Accessibilities of e-journals were widely mentioned as the main advantage of ejournals. Even though, they faced barriers while accessing to e-journals, most of the respondents agreed that with the usage of e-journals the quality of their work improves with enrichment of contents and materials leading to high quality of research and assignments. It is however found that lack of awareness is obstacle in utilisation of e-journals. Respondents also identified the need for training in using e-joumals and retrieving information from them time to time. Based on the results some suggestions have been made to the library to effective use of e-journals

Sleep as a predictor of depression level using Naïve Bayes / Nur Syakinah Md Roduan

The percentage of peoples having depression nowadays is said to be inclining. However, many of the patients do not even realize that they are having major depressive disorder. Busy with abundance of works and not having any time to seek a doctor for check-up may worsen the patient condition. So, a prediction system was developed to predict students' level of depression based on their sleep behaviors that uses Naïve Bayes method, which implement Artificial Intelligence (AI) as result of survey conducted to the target user proved that majority of them need a system that can predict depression level. Five independent variables which are insomnia, amount of sleep (hours), overall sleep quality, sleep onset latency, and number of awakening per sleep that has been identified as the most-used variables in many previous research are used for the prediction model. The target subject to realize the objectives of the prediction system are students under the Faculty of Computer and Mathematical Sciences in UiTM Jasin who is currently in the 6th semester. From 150 total data collected, 80% of them were used as training data, and 20% were for the new data to be tested. A total of 31 prediction models were produced and tested. All 31 models are to predict the students' depression level, which include normal, mild, borderline, moderate, and severe depression gave an average of 51.075% accuracy for 120 training data and average of 37.527% accuracy for the 30 new data collected through questionnaires to the subject. Agile methodology is used throughout the development of the system to ensure that this project work properly according to plan. Functionality testing are also done to make sure that the system is working properly without having any error. In conclusion, this research demonstrated that Naïve Bayes method could be used to predict the level of depression. Future work on this subject should improve the findings by modifying the variables used and/or by using other methods in term of data collection or the algorithm itself

The effect of green tea complex on muscular endurance among Jengka volleyball player / Muhammad Nazmi Fitri Roduan

Green tea has been used widely recently due to its medicinal property. The purpose of this study is to identify the effectiveness of green tea complex toward muscular endurance performance. Purposive sampling was conducted and a total of 24 subjects age 13 years old to 17 years old (M = 16.083, SD = 1.139) were participated into the study. Each subjects performed push up till failure as pre-test. Upon completion of pre-test, subjects were asked to consume green tea capsule 500mg before rest. After 2 hour passive rest, subject were asked to perform push-up till failure as post-test. Using the paired sample t-test, the result showed that there was not significant effect of green tea complex for increasing muscular endurance performance. As a conclusion, green tea complex were not effective on muscular endurance performance if there no any intervention in exercising and the green tea complex used

The impact of financial crisis on the determinants of capital structure: evidence from financial sector listed in Bursa Malaysia / Wan Abdul Ra'uf Wan Roduan

Global financial crisis 2007 to 2008 had lead to down turns of stock market worldwide, bailout of banks by US government as well as collapse of big financial institutions. In the interim, the housing markets are also affected by the crisis which had led to many evictions. This crisis is also affected Malaysia's economy which had resulted in unsatisfied performance of most of the company in Malaysia. Firm specific weaknesses were essential factors in the failing performance of the corporate sector in Malaysia. Therefore, this study is to examine the impact of financial crisis on the determinants of capital structure of finance sector in Malaysia. In this study the two dependent variables used to measure the capital structure, are the short-term debt (STD - ratio of current liabilities to total assets) and long term debt (LTD - ratio noncurrent liabilities to total assets). Therefore, STD is related to the current liabilities, which usually include credit cards, bank overdrafts, lines of credit and liabilities to suppliers. On the other hand, LTD is related to non-current liabilities such as longterm bank loans and other long term liabilities as hire purchase or leasing. In addition, the determinants used to identify the impact of financial crisis on capital structure are firm size, liquidity, profitability and tangibility. Research period is from 2002 to 2013, resulting eleven (11) finance firms in financial sector listed in Bursa Malaysia. Panel data technique has been used and regression analysis has provided very significant results. The data for this study will be tested using the e-views software. The result is expected that all variables are significant to capital structure of finance firms

Perniagaan informal di Pusat Bandar Batu Gajah, Perak / Nur Atika Syazila Muda dan Mimi Rozaida Mohamed Roduan

Kajian Perniagaan Informal Di Pusat Bandar Batu Gajah ini adalah untuk mengkaji perancangan lokasi dan keadaan perniagaan yang dijalankan. Perniagaan informal merupakan salah satu sektor yang penting kerana ianya merupakan antara penyumbang ekonomi bagi penduduk di Pusat Bandar Batu Gajah. Kajian ini dilakukan untuk mengatasi isu yang wujud di kawasan kajian antaranya ialah perletakan gerai atau penjaja yang kurang bersesuaian serta kurang strategik, keadaan gerai yang tidak seragam serta kelihatan telah usang dan aspek kebersihan, aktiviti dan susunatur yang tidak diselenggara dengan baik telah menjejaskan imej pusat bandar. Keadaan dan perletakan perniagaan informal ini merupakan aspek yang penting kerana ianya dapat memberi keselesaan kepada peniaga serta pengunjung, disamping dapat memenuhi keperluan dan kehendak pengguna. Kajian perniagaan informal ini juga memberi penekanan kepada empat peringkat yang meliputi tujuan dan objektif kajian, kajian teoritikal dan diikuti dengan analisis kajiselidik serta penemuan. Kajian kajiselidik dilakukan dengan menggunakan tiga kaedah utama iaitu pengamatan ke atas kawasan kajian, soalselidik peniaga dan pengunjung serta temubual bersemuka ke atas pihak MDBG. Penemuan analisis kajian mandapati terdapat beberapa masalah antaranya ialah perletakkan penjaja yang dan gerai yang tidak bersesuaian, imej dan pemandangan yang terjejas, keperluan penambahan tempat letak kenderaan (TLK) serta kemudahan. Cadangan-cadangan diusulkan bagi mengatasi masalah yang telah dikenalpasti iaitu pemusatan penjaja statik dan beredar, membaikpulih, pembagunan semula dan keseragaman gerai-gerai sediada, penambahan tempat letak kenderaan dan penyediaan elemen kemudahan yang mencukupi. Kesimpulannya, pihak berkuasa tempatan (PBT) iaitu pihak dari Majlis Daerah Batu Gajah (MDBG) memainkan peranan yang penting untuk merealisasikan cadangan yang dikemukan

LCD Projector Protection System / Izzuddin Aziz Shah Roduan and Mohd Jamhari Ismail Md Tokit

LCD projectors are used throughout the world in various different applications. Common failures seen in LCD projectors are the faulty lamps. LCD Projector Protection System is one of-a kind project that is designed to solve an intensive care problem while and after using the LCD projection. This project idea occurred in my mind after one of my lecturer was a in hurry, will not wait for the fan to stop rotating before switching off the LCD projector once finish teaching in the lecture room. A cooling fan is used to disperse the heat generated by an LCD projector and prevent it from overheating. The hot temperature is the major factor why the LCD projector is damaged if the user immediately turnoff the electricity supply socket after shutting down without waiting until the LCD projector cooling fan stop rotating. LCD Projector Protection System is implemented to protect the LCD projector lamp lifespan. This device starts operating when the system switch is pressed and the electricity will be supply and received at the LCD projector, at this time the indicator reads "Waiting for LCD ON" and the temperature is displayed for two minutes. If the LCD projector is not switched on, the electricity supply will be cut off automatically by the device. If the user continues using the LCD projector, during this time the indicator display reads "LCD Temp. System ON" and the current temperature for LCD projector will appear

Modulation of cancer signalling pathway(s) in two-stage mouse skin tumorigenesis by annonacin

Background: Annonacin, an annonaceous acetogenin isolated from Annona muricata has been reported to be strongly cytotoxic against various cell lines, in vitro. Nevertheless, its effect against in vivo tumor promoting activity has not been reported yet. Therefore, this study was aimed to investigate antitumor-promoting activity of annonacin via in vivo two-stage mouse skin tumorigenesis model and its molecular pathways involved. Methods: Mice were initiated with single dose of 7,12-dimethylbenz[α]anthracene (DMBA) (390 nmol/100 μL) followed by, in subsequent week, repeated promotion (twice weekly; 22 weeks) with 12-O-tetradecanoylphorbol-13-acetate (TPA) (1.7 nmol/100 μL). Annonacin (85 nM) and curcumin (10 mg/kg; reference) were, respectively, applied topically to DMBA/TPA-induced mice 30 min before each TPA application for 22 weeks. Upon termination, histopathological examination of skin, liver and kidney as well as genes and proteins expression analysis were conducted to elucidate the potential mechanism of annonacin. Results: With comparison to the carcinogen control, Annonacin significantly increased the tumor latency period and reduced the tumor incidence, tumor burden and tumor volume, respectively. In addition, it also suppressed tumorigenesis manifested by significant reduction of hyperkeratosis, dermal papillae and number of keratin pearls on skin tissues. Annonacin also appeared to be non-toxic to liver and kidney. Significant modulation of both AKT, ERK, mTOR, p38, PTEN and Src genes and proteins were also observed in annonacin-targeted signaling pathway(s) against tumorigenesis. Conclusions: Collectively, results of this study indicate that annonacin is a potential therapeutic compound targeting tumor promoting stage in skin tumorigenesis by modulating multiple gene and protein in cancer signaling pathways without apparent toxicity

Annona muricata leaves extracts prevent DMBA/TPA-induced skin tumorigenesis via modulating antioxidants enzyme system in ICR mice

Annona muricata, locally known as soursop has been reported to exhibit antiproliferative activities against various cancer cell lines. In this current study, we have investigated the antitumor promotion of various fractions of Annona muricata leaves (AML); hexane (AMLH), dichloromethane (AMLD) and methanol (AMLM) fraction respectively on 7, 12-dimethylbenz[α]anthracene (DMBA) induced and 12-0-tetradecaboylphorbol-13-acetate (TPA) promoted skin tumorigenesis in mice via morphological assessment, biochemical analysis and histopathological evaluation. The results of the study revealed significant inhibition in tumor incidence, tumor burden and tumor volume in the groups received AMLH and AMLD, respectively, and suppressive effects in group received AMLM compared with carcinogen control group at week 21. Superoxide dismutase, catalase, and lipid peroxidation levels were returned to near normal by administration of AML to DMBA/TPA-induced mice. The above findings were supported by histopathological studies, in which the extensive epidermal hyperplasia in carcinogen control group was restored to normal in AML treated groups. Whilst, annonacin, a major annaonaceous acetogenin was found to be the highest in AMLH and AMLD. From the present study, it can be inferred that AML supressed DMBA/TPA-induced skin tumor and this antitumor-promoting activity may be linked to the antioxidant/free radical-scavenging constituents of the extract and annonacin contained in the extracts

Effect of laser loop on surface morphology of copper substrate and wettability of solder joint

The effect of different laser loop parameter on the geometry of micro-groove pattern on copper substrate and its effect on the wettability was investigated. The micro-grooves pattern was fabricated on the copper surface through laser surface texturing process. 3D measuring laser microscope and contact angle measurement test was conducted to measure the geometry of the micro-grooves pattern and wettability of the solder joint respectively. The results showed that the improvement in laser loop parameter increased the depth of the micro-grooves due to the more exposed time which allows more material ablation. It also showed that the contact angle of textured substrate is smaller than the untextured substrate which results in better wettability

Effectiveness of dimple microtextured copper substrate on performance of Sn-0.7Cu solder alloy

This paper elucidates the influence of dimple-microtextured copper substrate on the performance of Sn-0.7Cu solder alloy. A dimple with a diameter of 50 µm was produced by varying the dimple depth using different laser scanning repetitions, while the dimple spacing was fixed for each sample at 100 µm. The dimple-microtextured copper substrate was joined with Sn-0.7Cu solder alloy using the reflow soldering process. The solder joints’ wettability, microstructure, and growth of its intermetallic compound (IMC) layer were analysed to determine the influence of the dimple-microtextured copper substrate on the performance of the Sn-0.7Cu solder alloy. It was observed that increasing laser scan repetitions increased the dimples’ depth, resulting in higher surface roughness. In terms of soldering performance, it was seen that the solder joints’ average contact angle decreased with increasing dimple depth, while the average IMC thickness increased as the dimple depth increased. The copper element was more evenly distributed for the dimple-micro-textured copper substrate than its non-textured counterpart