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| 1 | 基于问题链的中学数学有效教学研究——一项课例研究的启示显示文摘以问题解决数学观为依据,提出基于问题链的数学教学理念.课例研究中,新手教师与专家教师整体上体现了该理念,通过问题链为学生提供逐渐深入的数学理解和一定的探索空间.在数学主题联结上分别表现出知识关联与方法关联两种类型,并对整个教学产生影响.问题链教学受到课时的限制较为明显,这需要单元设计等方式加以进一步解决. | 唐恒钧 HAZEL TAN 徐元根 张维忠 | 2018 | 数学教育学报2018,27,3: | 51 |
| 2 | Water softening by induced crystallization in fluidized bed显示文摘Fluidized bed and induced crystallization technology were combined to design a new type of induced crystallization fluidized bed reactor. The added particulate matter served as crystal nucleus to induce crystallization so that the insoluble material, which was in a saturated state, could precipitate on its surface. In this study, by filling the fluidized bed with quartz sand and by adjusting water p H, precipitation of calcium carbonate was induced on the surface of quartz sand, and the removal of water hardness was achieved.With a reactor influent flow of 60 L/hr, a fixed-bed height of 0.5 m, pH value of 9.5, quartz sand nuclear diameter of 0.2–0.4 mm, and a reflux ratio of 60%, the effluent concentration of calcium hardness was reduced to 60 mg/L and 86.6% removal efficiency was achieved. The resulting effluent reached the quality standard set for circulating cooling water. Majority of the material on the surface of quartz sand was calculated to be calcium carbonate based on energy spectrum analysis and moisture content was around 15.994%. With the low moisture content, dewatering treatment is no longer required and this results to cost savings on total water treatment process. | Yuefang Che Rong Fan Danfeng An Yujie Cheng Hazel Tan | 2016 | Journal of Environmental Sciences2016,28,12: | 6 |
| 3 | STAT3-Driven Upregulation of TLR2 Promotes Gastric Tumorigenesis Independent of Tumor Inflammation显示文摘 | Hazel Tye Catherine L. Kennedy Meri Najdovska Louise McLeod William McCormack Norman Hughes Anouk Dev William Sievert Chia Huey Ooi Tomo-o Ishikawa Hiroko Oshima Prithi S. Bhathal Andrew E. Parker Masanobu Oshima Patrick Tan Brendan J. Jenkins | 2012 | Cancer Cell2012,,4: | 3 |
| 4 | Presence of Cryptosporidium parvum and Giardia lamblia in water samples from Southeast Asia: towards an integrated water detection system显示文摘Background:Access to clean and safe drinking water that is free from pathogenic protozoan parasites,especially Cryptosporidium parvum and Giardia lamblia that cause gastrointestinal illness in humans,is still an issue in Southeast Asia(SEA).This study is the first attempt to detect the aforementioned protozoan parasites in water samples from countries in SEA,using real-time polymerase chain reaction(qPCR)assays.Methods:A total of 221 water samples of 10 l each were collected between April and October 2013 from Malaysia(53),Thailand(120),the Philippines(33),and Vietnam(15).A physicochemical analysis was conducted.The water samples were processed in accordance with the US Environmental Protection Agency’s methods 1622/1623.1,microscopically observed and subsequently screened using qPCR assays.Results:Cryptosporidium oocysts were detected in treated water samples from the Philippines(1/10),with a concentration of 0.06±0.19 oocyst/L,and untreated water samples from Thailand(25/93),Malaysia(17/44),and the Philippines(11/23),with concentrations ranging from 0.13±0.18 to 0.57±1.41 oocyst/L.Giardia cysts were found in treated water samples from the Philippines(1/10),with a concentration of 0.02±0.06 cyst/L,and in untreated water samples from Thailand(20/93),Vietnam(5/10),Malaysia(22/44),and the Philippines(16/23),with concentrations ranging from 0.12±0.3 to 8.90±19.65 cyst/L.The pathogens C.parvum and G.lamblia were detected using using qPCR assays by targeting the 138-bp fragment and the small subunit gene,respectively.C.parvum was detected in untreated water samples from the Philippines(1/23)and Malaysia(2/44),whilst,G.lamblia detected was detected in treated water samples from the Philippines(1/10)and in untreated water samples from Thailand(21/93),Malaysia(12/44),and the Philippines(17/23).Nitrate concentration was found to have a high positive correlation with(oo)cyst(0.993).Conclusion:The presence of(oo)cysts in the water samples means that there is potential risk for zoonotic disease transmission in the studied countries.Detection using qPCR is feasible for quantifying both pathogenic C.parvum and G.lamblia in large water samples. | Thulasi Kumar Mohamad Azlan Abd Majid Subashini Onichandran Narong Jaturas Hemah Andiappan Cristina C.Salibay Hazel A.L.Tabo Norbel Tabo Julieta Z.Dungca Jitbanjong Tangpong Sucheep Phiriyasamith Boonyaorn Yuttayong Raxsina Polseela Binh Nhu Do Nongyao Sawangjaroen Tian-Chye Tan Yvonne A.L.Lim Veeranoot Nissapatorn | 2016 | Infectious Diseases of Poverty2016,5,1: | 1 |
| 5 | 大洋洲土著数学教育研究特点及启示显示文摘面对土著学生在数学评价中的弱势,大洋洲研究者一方面反思并改进评价方式,另一方面探索影响土著学生数学学习的文化因素,并开展课程、教学、教师专业发展等方面的改进性和内生式研究。鉴于此,我国民族数学教育研究应采取内生式研究取向、具有系统思维与微观实证相结合的研究视角、强调以学生文化基础与教学研究为切入点。 | 唐恒钧 张维忠 TAN Hazel | 2016 | 民族教育研究2016,27,1: | 0 |