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Woods R, Mavroidis P, Lehman-Davis M, Kostich M, Cook T, Chera B, Das S, Lian J. SU-F-T-523: Radiobiological Comparison of Helical Tomotherapy and VMAT in the Treatment of Head and Neck Tumors. Med Phys 2016. [DOI: 10.1118/1.4956708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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27
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Roth T, Dooley J, Zhu T, Woods R, Mavroidis P, Lian J. SU-F-T-592: A Delivery QA-Free Approach for Adaptive Therapy of Prostate Cancer with Static Intensity Modulated Radiotherapy. Med Phys 2016. [DOI: 10.1118/1.4956777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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28
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Dance M, Wu G, Gao Y, Pirozzi S, Nelson A, Das S, Lian J. SU-F-J-95: Impact of Shape Complexity On the Accuracy of Gradient-Based PET Volume Delineation. Med Phys 2016. [DOI: 10.1118/1.4956003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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29
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Wang X, Lian J, Xu XJ, Li X, Li P, Li MM, Wang Y, Liu YX. Optimization of polarizer azimuth in improving signal-to-noise ratio in Kerr microscopy. APPLIED OPTICS 2016; 55:1725-1730. [PMID: 26974636 DOI: 10.1364/ao.55.001725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
The magneto optical Kerr effect (MOKE) is a widely used technique in magnetic domain imaging for its high surface sensitivity and external magnetic compatibility. Optimization of Kerr microscopy will improve the detecting sensitivity and provide high-quality domain images. In this work, we provide a method to optimize the polarizer azimuth in improving the signal-to-noise ratio (S/N) in longitudinal Kerr microscopy with the generalized magneto optical ellipsometry. Detailed analysis of the MOKE signal and the noise components are provided to study the optimum polarizer and analyzer azimuth combinations. Results show that, for a fixed polarizer angle 1°, the laser intensity noise and the shot noise, which vary with the input laser power, have a similar amplitude and decline with the analyzer azimuth increasing. When the analyzer is set at the extinction place, the Johnson noise plays a dominate role in the total noise. Then, the S/N values are calculated to find the optimum polarizer and analyzer azimuth. Results show that the optimum polarizer and analyzer azimuth combination for Permalloy is (18.35°, 68.35°) under an incident angle of 45°. After that, the S/N of 200 nm Permalloy at different analyzer angles with the polarizer azimuth set at 18.35° is measured to verify the validity of the simulation results. At last, the S/N at different incident angles is calculated. Results show that the optimum incident angle of 200 nm Permalloy film to improve the S/N is 70.35° under the polarizer and analyzer angles set at the optimal combinations (18.35°, 68.35°).
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Wang K, Mullins B, Falchook A, Lian J, Dance M, Lin W, Sills T, Huang B, Chera B. Comparison of Tumor Volume Delineation on Magnetic Resonance/Positron Emission Tomography Versus Standard Computed Tomography for Head and Neck Cancer: Is There Added Value? Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2015.12.169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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31
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Zhu X, Cai J, Lian J, Driewer J, Chang S, Li S, Verma V, Lei Y, Wang S, Zheng D, Zhang M, Zhang Q, Zhou S, Enke C. A Touchless Tool to Improve Gated Radiation Therapy: Thermal Camera Based Breathing Phase Monitoring. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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32
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Xin G, Yao T, Sun H, Scott SM, Shao D, Wang G, Lian J. Highly thermally conductive and mechanically strong graphene fibers. Science 2015; 349:1083-7. [DOI: 10.1126/science.aaa6502] [Citation(s) in RCA: 471] [Impact Index Per Article: 52.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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33
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Matney J, Lian J, Chao E, Chera B, Marks L, Das S. SU-E-T-657: Quantitative Assessment of Plan Robustness for Helical Tomotherapy for Head and Neck Cancer Radiotherapy. Med Phys 2015. [DOI: 10.1118/1.4925020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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34
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Dance M, Chera B, Falchook A, Das S, Lian J. SU-C-BRA-02: Gradient Based Method of Target Delineation On PET/MR Image of Head and Neck Cancer Patients. Med Phys 2015. [DOI: 10.1118/1.4923812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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35
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Lian J, Matney J, Chao E, Chang S, Zagar T, Wang A, Chera B, Das S, Schreiber E. SU-C-210-02: Impact of Intrafractional Motion On TomoTherapy Stereotactic Body Radiotherapy (SBRT) 4D Dosimetry. Med Phys 2015. [DOI: 10.1118/1.4923847] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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36
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Gao Y, Lian J, Chen R, Wang A, Shen D. WE-AB-BRA-05: Fully Automatic Segmentation of Male Pelvic Organs On CT Without Manual Intervention. Med Phys 2015. [DOI: 10.1118/1.4925858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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37
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Lian J, Shao Y, Chen R, Shen D, Wang A. Prostate Deformation From Rectal Balloon and Dosimetric Effects in Prostate Brachytherapy. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Yao C, Tsai Y, Kuo W, Lian J, Kuo Y, Chen Y, Kuo S. 905: A novel role of kaempferol: Enhancing the radiosensitivity on lung cancer cells. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)50805-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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39
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Zhu X, Chang S, Cullip T, Yuan L, Lian J, Zhang X, Tang X, Tracton G, Dooley J. SU-E-T-521: Feasibility Study of a Rotational Step-And-Shoot IMRT Treatment Planning Approach. Med Phys 2014. [DOI: 10.1118/1.4888854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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40
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Lian J, Yuan L, Zhu X, Chera B, Chang S, Wu Q. SU-E-T-527: Prior Knowledge Guided TomoTherapy Treatment Planning. Med Phys 2014. [DOI: 10.1118/1.4888861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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41
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Shao Y, Shen D, Chen R, Wang A, Lian J. SU-E-T-397: Include Organ Deformation Into Dose Calculation of Prostate Brachytherapy. Med Phys 2014. [DOI: 10.1118/1.4888730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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42
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Tang X, Cullip T, Dooley J, Potter L, Chera B, Lian J, Chang S, Zhu X. SU-E-J-236: Feasibility of Using Infrared Imaging to Verify the Accuracy of the Radiotherapy Delivery. Med Phys 2014. [DOI: 10.1118/1.4888289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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43
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Lian J, Tang X, Liu R. SU-E-T-489: Plan Comparisons of Re-Irradiation Treatment of Three Intensity Modulated Techniques. Med Phys 2014. [DOI: 10.1118/1.4888822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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44
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Lian J, Yuan L, Ge Y, Chera B, Yoo D, Chang S, Yin F, Wu Q. Intertechnique and Interinstitutional Modeling of the Dosimetry of Organs-at-Risk in Head and Neck IMRT Plans. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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45
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Willson A, Shuryak I, Fried D, Lehman-Davis M, Somasundaram V, Lian J, Cullip T, Brenner D, Marks L, Chera B. Estimating the Excess Lifetime Risk of Radiation-Induced Secondary Malignancy (SMN) in Pediatric Patients Treated With Craniospinal Irradiation (CSI): Tomotherapy (Tomo) Versus Conventional (Conv) Beams. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1577] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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46
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Yuan L, Lian J, Chang S, Wu Q, Yin F, Jiang Y, Ge Y. Modeling Organs at Risk Dose Sparing in Head and Neck Tomotherapy and IMRT Plans: A Comparison Study. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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47
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Brown C, Burslem DFRP, Illian JB, Bao L, Brockelman W, Cao M, Chang LW, Dattaraja HS, Davies S, Gunatilleke CVS, Gunatilleke IAUN, Huang J, Kassim AR, Lafrankie JV, Lian J, Lin L, Ma K, Mi X, Nathalang A, Noor S, Ong P, Sukumar R, Su SH, Sun IF, Suresh HS, Tan S, Thompson J, Uriarte M, Valencia R, Yap SL, Ye W, Law R. Multispecies coexistence of trees in tropical forests: spatial signals of topographic niche differentiation increase with environmental heterogeneity. Proc Biol Sci 2013; 280:20130502. [PMID: 23782876 DOI: 10.1098/rspb.2013.0502] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Neutral and niche theories give contrasting explanations for the maintenance of tropical tree species diversity. Both have some empirical support, but methods to disentangle their effects have not yet been developed. We applied a statistical measure of spatial structure to data from 14 large tropical forest plots to test a prediction of niche theory that is incompatible with neutral theory: that species in heterogeneous environments should separate out in space according to their niche preferences. We chose plots across a range of topographic heterogeneity, and tested whether pairwise spatial associations among species were more variable in more heterogeneous sites. We found strong support for this prediction, based on a strong positive relationship between variance in the spatial structure of species pairs and topographic heterogeneity across sites. We interpret this pattern as evidence of pervasive niche differentiation, which increases in importance with increasing environmental heterogeneity.
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Tang X, Cullip T, Dooley J, Zhu X, Lian J, Lawrence M, Zagar T, Jones E, Marks L, Chang S. SU-E-J-222: An Analysis of the Deep Inspiration Breath Hold (DIBH) Treatment Delivery Uncertainties. Med Phys 2013. [DOI: 10.1118/1.4814434] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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49
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Sit CHP, McKenzie TL, Cerin E, McManus A, Lian J. Physical activity for children in special school environment. Hong Kong Med J 2013; 19 Suppl 4:42-44. [PMID: 23775187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
1. We assessed children's physical activity (PA) in structured (physical education) and unstructured (recess, lunch, before and after school) periods in special schools and examined its association with modifiable area contextual characteristics. 2. Children with disabilities were not highly active, but were more active during recess and lunch periods than at other times including physical education classes. 3. Areas were often not accessible during unstructured settings. Children were more active in areas when supervision and organised activities were provided. 4. Providing an interactive game during free play did not significantly increase group's PA. 5. Children's PA accrual is influenced by contextual characteristics of the school environment. There is a need to make areas more accessible and to use social marketing and programming to attract more users. School and health professionals should modify contextual characteristics by providing more direct supervision and organised activities during free play.
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Price MJ, Fontenot JD, Lian J, Nichols G, Burkhardt K, Erwin R, VanderWalde N, Dooley J, Tracton G, Chang S. SU-E-T-485: Comparison of the Oncogenic Potential for Radiation-Associated, Second Malignant Neoplasms for Several Prostate Radiotherapy Modalities as a Function of Relative OAR & PTV Volumes. Med Phys 2013. [DOI: 10.1118/1.4814918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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