Technology Leadership in Malaysia's High Performance School

Headmaster as leader of the school also plays a role as a technology leader. This applies to the high performance schools (HPS) headmaster as well. The HPS excel in all aspects of education. In this study, researcher is interested in examining the role of the headmaster as a technology leader through interviews with three headmasters of high performance schools. Various topics related to technology leadership among headmaster have been discussed based on National Educational Technology Standards for Administrators (NETS-A) 2009 recommended by International Society for Technology in Education (ISTE). From the conversation, the headmaster of HPS have played their leadership role of technology in schools by meeting the various components of NETS-A. In terms of challenges, the online internet is a major obstacle to promoting the use of ICT in the school. The hard work and effort by the headmaster of HPS in the field of ICT has shown a good result and outcome. The headmaster of other schools should have to emulate the great efforts HPS headmasters to create a generation of young literates

Headmaster Technology Leadership in Malaysia Elementary Schools

Headmaster technology leadership increasingly important in education today. This leadership, providing various positive effects to the headmaster, teachers, students and schools. Therefore, headmaster need to master this leadership to take up the leadership role of technology in schools. Based on the Headmaster Technology Leadership Model by Chang (2003), a study based on interviews conducted on 6 headmasters serving in Johor, Malaysia. This study aims to review i) the role of the headmaster in Johor as a technology leader in school ii) the challenges faced by headmaster to serve as a technology leader. Analysis of the findings from interviews found the headmaster in Johor play a role as a technology leader in the school. However, the findings have found the effort in ICT development by the headmaster in schools is different based on the needs of the school. Therefore, there is no single fixed pattern headmaster role as a technology leader. In addition, the role of the headmaster as a technology leader is not comprehensive of the five dimensions as suggested by Chang (2003). Headmaster of Johor advised to make improvements to the school led to the transformation of technology-based education

Phase I clinical trial of the Src inhibitor dasatinib with dacarbazine in metastatic melanoma.

BackgroundSrc inhibitors sensitise melanoma cells to chemotherapy in preclinical models. The combination of dasatinib and dacarbazine was tested in a phase I trial in melanoma.MethodsPatients had ECOG performance status 0-2 and normal organ function. Dacarbazine was administered on day 1 and dasatinib on day 2 through 19 of each 21-day cycle. Both were escalated from 50 mg b.i.d. of dasatinib and 800 mg m(-2) of dacarbazine. Available pre-treatment biopsies were sequenced for BRAF, NRAS, and C-Kit mutations.ResultsDose-limiting toxicity was reached at dasatinib 70 mg b.i.d./dacarbazine 1000 mg m(-2), and was predominantly haematological. In 29 patients receiving dasatinib 70 mg b.i.d., the objective response rate (ORR) was 13.8%, the clinical benefit rate (ORR+SD) was 72.4%, the 6-month progression-free survival (PFS) was 20.7%, and the 12-month overall survival (OS) was 34.5%. Two out of three patients who were wild type for BRAF, NRAS, and c-KIT mutations had confirmed partial responses, and one had a minor response.ConclusionThe recommended phase II dose is dasatinib 70 mg b.i.d with dacarbazine 800 mg m(-2). PFS and OS data for dasatinib at 70 mg b.i.d. with dacarbazine compared favourably with historical controls. Preliminary data support evaluating tumour mutation status further as a biomarker of response

Pengetahuan Teknologi Pedagogi Kandungan (PTPK) dalam kalangan guru pendidikan khas bermasalah pendengaran

Untuk menangani cabaran abad ke-21 khususnya dalam bidang pendidikan, seseorang guru perlu memiliki cukup pengetahuan supaya mereka tidak ketinggalan dalam era globalisasi. Guru pendidikan khas bermasalah pendengaran (PKBP) turut tidak terkecuali. Oleh itu, kajian ini bertujuan untuk menyelidik Pengetahuan Teknologi Pedagogi Kandungan (PTPK) terhadap 220 guru PKBP dari segi tujuh komponen iaitu: Pengetahuan Kandungan (PK), Pengetahuan Pedagogi (PP), Pengetahuan Pedagogi Kandungan (PPK), Pengetahuan Teknologi (PT), Pengetahuan Teknologi Kandungan (PTK), Pengetahuan Teknologi Pedagogi (PTP) dan Pengetahuan Teknologi Pedagogi Kandungan (PTPK) serta faktor-faktor yang mempengaruhinya (jantina, pengalaman mengajar, bidang pengajaran). Secara keseluruhannya, guru PKBP mempunyai tahap PK, PP, PPK dan PT yang tinggi namun apabila pengetahuan ini digabungkan menjadi PTK, PTP dan PTPK, tahapnya turun kepada sederhana. Menariknya, faktor jantina dan pengalaman mengajar masih merupakan faktor peramal kepada pengetahuan teknologi guru walaupun teknologi digital telah diperkenalkan ke sekolah sejak tiga dekad yang lalu. Secara khususnya, dapatan kajian menunjukkan guru lelaki PKBP mempunyai tahap PT, PTK, PTP yang lebih tinggi dan signifikan berbanding dengan guru perempuan. Selain itu, dapatan kajian turut menunjukkan bahawa guru PKBP berpengalaman mempunyai tahap PK, PP dan PPK lebih tinggi dan signifikan tetapi PT mereka adalah lebih rendah berbanding guru PKBP novis. Walau bagaimanapun, tidak terdapat perbezaan yang signifikan bagi semua tujuh komponen PTPK berdasarkan bidang pengajaran iaitu Bahasa, Kemanusiaan, Sains dan Matematik serta Teknik dan Vokasional dalam kalangan guru PKBP. Cadangan dan implikasi daripada hasil kajian dibincangkan untuk mempromosikan dan memudahcarakan pengintegrasian teknologi dalam kalangan guru-guru PKBP di Malaysia

Screening and evaluation of local bacteria isolated from shellfish as potential probiotics against pathogenic Vibrios

The present study was carried out to isolate, screen and evaluate potential candidates of local bacteria isolated from tiger shrimp Penaeus monodon and slipper cupped oysters Crassostrea iredalei as probiotics in shellfish aquaculture. A total of 144 of bacteria were successfully isolated from the intestine and stomach of 20 tails of healthy adult tiger shrimp P. monodon, while 136 were successfully isolated from the digestive tract, gills and inner shells of 10 healthy adult C. iredalei. The number of potential isolates was narrowed down to two from tiger shrimp, and one from slipper cupped oyster after in vitro screening assays. The three isolates, labeled as G11, I24 and S66, were identified as Virgibacillus sp., Bacillus sp. and Exiquobacterium sp., respectively, using 16S rDNA gene analysis. The antagonistic ability of the isolates towards Vibrio alginolyticus and Vibrio harveyi were conducted in stagnant and liquid modes via spot lawn and broth co-culture assay, respectively. In these assays, all the potential probionts were inhibitory to both pathogenic vibrios. In the in-vivo assay, Artemia was used as host and treated with different concentrations of potential probionts (10⁴, 10⁶ and 10⁸ CFU ml⁻¹), and challenged with V. alginolyticus ana V. harveyiat 10⁵ CFU ml⁻¹ Respectively, Artemia treated with probiont Gl 1 at all concentrations and challenged with V. alginolyticus had increased survival (70-80 %), which was significantly higher as compared with group with only the pathogen (20 %). Meanwhile, probiont I24 increased the survival of Artemia by 70 % at a concentration of 10⁸ CFU ml⁻¹ after being challenged with V. alginolyticus and Artemia treated with 10⁶ CFU ml⁻¹ of probiont S66 had increased survival of 90% after being challenged with V. harveyi. Thus, the three isolates might have potential applications as probiotics in shellfish aquaculture against vibriosis

Preliminary study on antinociceptove effect of aqueous extract of Boesenbergia pandurata in formalin-induced nociception test in mice

Pain is an unpleasant sensation associated with body state dysfunction that negatively affects the productivity of patients. Non-steroidal anti-inflammatory drugs (NSAIDs) are commonly used as over-the-counter pain reliever medication due to its cost effectiveness. However, prolonged usage of NSAIDs usually accompanied with adverse side effects such as ulcer, nausea and even kidney failure. Hence, researchers are now focused on traditional herbal research to search for potential analgesic substances that are with minimal or no adverse effects. Boesenbergia pandurata，it is also known as temu kunci in Malaysia is a perennial herb that belongs to Zingiberaceae family. Boesenbergia pandurata is widely distributed in Southeast Asia and its rhizomes are commonly used as food ingredients or as traditional medicine to treat diseases conditions such as inflammation, cancer, and fungal infection. The aim of this study is to evaluate the inhibitory effect of aqueous extract of Boesenbergia pandurata (AEBP) on formalin-induced nociception test in mice. Mice were pre-treated with AEBP via intraperitoneal injection 30 min before challenged with intraplantar injection of formalin. It was demonstrated that intraperitoneal administration of AEBP at doses (0.3, 1, 3 and 10 mg/kg) produced significant antinociceptive response in both neurogenic and inflammatory phases of pain response induced by formalin. The findings indicated preliminary study on antinociceptive effect of AEBP, but further study should be conducted to explore the exact mechanism of pain inhibition by AEBP

Utility of Parental Mediation Model on Youth’s Problematic Online Gaming

The Parental Mediation Model PMM) was initially designed to regulate children’s attitudes towards the traditional media. In the present era, because of prevalent online media there is a need for similar regulative measures. Spending long hours on social media and playing online games increase the risks of exposure to the negative outcomes of online gaming. This paper initially applied the PMM developed by European Kids Online to (i) test the reliability and validity of this model and (ii) identify the effectiveness of this model in controlling problematic online gaming (POG). The data were collected from 592 participants comprising 296 parents and 296 students of four foreign universities, aged 16 to 22 years in Kuala Lumpur (Malaysia). The study found that the modified model of the five-factor PMM (Technical mediation, Monitoring mediation, Restrictive mediation, Active Mediation of Internet Safety, and Active mediation of Internet Use) functions as a predictor for mitigating POG. The findings suggest the existence of a positive relation between ‘monitoring’ and ‘restrictive’ mediation strategies and exposure to POG while Active Mediation of Internet Safety and Active mediation of Internet use were insignificant predictors. Results showed a higher utility of ‘technical’ strategies by the parents led to less POG. The findings of this study do not support the literature suggesting active mediation is more effective for reducing youth’s risky behaviour. Instead, parents need to apply more technical mediations with their children and adolescents’ Internet use to minimize the negative effects of online gaming

Intratumoral Injection of Propionibacterium acnes Suppresses Malignant Melanoma by Enhancing Th1 Immune Responses

Malignant melanoma (MM) is an aggressive cutaneous malignancy associated with poor prognosis; many putatively therapeutic agents have been administered, but with mostly unsuccessful results. Propionibacterium acnes (P. acnes) is an aerotolerant anaerobic gram-positive bacteria that causes acne and inflammation. After being engulfed and processed by phagocytes, P. acnes induces a strong Th1-type cytokine immune response by producing cytokines such as IL-12, IFN-γ and TNF-α. The characteristic Th2-mediated allergic response can be counteracted by Th1 cytokines induced by P. acnes injection. This inflammatory response induced by P. acnes has been suggested to have antitumor activity, but its effect on MM has not been fully evaluated

The gene expression profiles of primary and metastatic melanoma yields a transition point of tumor progression and metastasis

<p>Abstract</p> <p>Background</p> <p>The process of malignant transformation, progression and metastasis of melanoma is poorly understood. Gene expression profiling of human cancer has allowed for a unique insight into the genes that are involved in these processes. Thus, we have attempted to utilize this approach through the analysis of a series of primary, non-metastatic cutaneous tumors and metastatic melanoma samples.</p> <p>Methods</p> <p>We have utilized gene microarray analysis and a variety of molecular techniques to compare 40 metastatic melanoma (MM) samples, composed of 22 bulky, macroscopic (replaced) lymph node metastases, 16 subcutaneous and 2 distant metastases (adrenal and brain), to 42 primary cutaneous cancers, comprised of 16 melanoma, 11 squamous cell, 15 basal cell skin cancers. A Human Genome U133 Plus 2.0 array from Affymetrix, Inc. was utilized for each sample. A variety of statistical software, including the Affymetrix MAS 5.0 analysis software, was utilized to compare primary cancers to metastatic melanomas. Separate analyses were performed to directly compare only primary melanoma to metastatic melanoma samples. The expression levels of putative oncogenes and tumor suppressor genes were analyzed by semi- and real-time quantitative RT-PCR (qPCR) and Western blot analysis was performed on select genes.</p> <p>Results</p> <p>We find that primary basal cell carcinomas, squamous cell carcinomas and thin melanomas express dramatically higher levels of many genes, including <it>SPRR1A/B</it>, <it>KRT16/17</it>, <it>CD24</it>, <it>LOR</it>, <it>GATA3</it>, <it>MUC15</it>, and <it>TMPRSS4</it>, than metastatic melanoma. In contrast, the metastatic melanomas express higher levels of genes such as <it>MAGE</it>, <it>GPR19</it>, <it>BCL2A1</it>, <it>MMP14</it>, <it>SOX5</it>, <it>BUB1</it>, <it>RGS20</it>, and more. The transition from non-metastatic expression levels to metastatic expression levels occurs as melanoma tumors thicken. We further evaluated primary melanomas of varying Breslow's tumor thickness to determine that the transition in expression occurs at different thicknesses for different genes suggesting that the "transition zone" represents a critical time for the emergence of the metastatic phenotype. Several putative tumor oncogenes (<it>SPP-1</it>, <it>MITF</it>, <it>CITED-1</it>, <it>GDF-15</it>, <it>c-Met</it>, <it>HOX </it>loci) and suppressor genes (<it>PITX-1</it>, <it>CST-6</it>, <it>PDGFRL</it>, <it>DSC-3</it>, <it>POU2F3</it>, <it>CLCA2</it>, <it>ST7L</it>), were identified and validated by quantitative PCR as changing expression during this transition period. These are strong candidates for genes involved in the progression or suppression of the metastatic phenotype.</p> <p>Conclusion</p> <p>The gene expression profiling of primary, non-metastatic cutaneous tumors and metastatic melanoma has resulted in the identification of several genes that may be centrally involved in the progression and metastatic potential of melanoma. This has very important implications as we continue to develop an improved understanding of the metastatic process, allowing us to identify specific genes for prognostic markers and possibly for targeted therapeutic approaches.</p

Phase II trial of sagopilone, a novel epothilone analog in metastatic melanoma

BackgroundSagopilone is a novel fully synthetic epothilone with promising preclinical activity and a favourable toxicity profile in phase I testing.MethodsA phase II pharmacokinetic and efficacy trial was conducted in patients with metastatic melanoma. Patients had measurable disease, Eastern Cooperative Oncology Group performance status 0-2, adequate haematological, and organ function, with up to 2 previous chemotherapy and any previous immunotherapy regimens. Sagopilone, 16 mg m⁻², was administered intravenously over 3 h every 21 days until progression or unacceptable toxicity.ResultsThirty-five patients were treated. Sagopilone showed multi-exponential kinetics with a mean terminal half-life of 64 h and a volume of distribution of 4361 l m⁻² indicating extensive tissue/tubulin binding. Only grade 2 or lower toxicity was observed: these included sensory neuropathy (66%), leukopenia (46%), fatigue (34%), and neutropenia (31%). The objective response rate was 11.4% (one confirmed complete response, two confirmed partial responses, and one unconfirmed partial response). Stable disease for at least 12 weeks was seen in an additional eight patients (clinical benefit rate 36.4%).ConclusionSagopilone was well tolerated with mild haematological toxicity and sensory neuropathy. Unlike other epothilones, it shows activity against melanoma even in pretreated patients. Further clinical testing is warranted