Written Corrective Feedback and Its Effects on English Department Students' Writing Drafts

This thesis investigates the teacher's Written Corrective Feedback (WCF) strategies used in the students' writing drafts and the effects analyzed from the comparison between the first and final drafts. It consists of fifty eight students' writing drafts as the source of data limited to language use (LU) and vocabulary. The theories applied were the WCF strategies by Ellis (2009a); the effects of written feedback to students by Hyland (2003), and supported by Ferris (2006). The qualitative approach was used in this study. The finding revealed that the strategies used in the class were Direct CF (430 times), and Indirect CF (329 times). The effects were Error corrected, Incorrect change, No change, and Deleted text. Moreover, it was revealed that LU problem was more noticed by the students to be corrected. In conclusion, WCF can guide the students to be more aware of their mistakes and to improve their writing

Multi-scale simulation of gas solid fluidization based on EMMS- DPM

This presentation will discuss some efforts to improve the speed and accuracy of discrete particle method from physical models to computational methods. For physical model, the multiscale method is used. At global scale, the particles are distributed according to global distribution predicted by the Energy Minimization Multi-Scale (EMMS) model, so that the computation domain can be decomposed non-uniformly for load balance. At grid scale, to improve accuracy, the structure dependent drag coefficient based on the EMMS is used. At particle scale, the coarse grained method is used. The size and solids concentration of the coarse-grained particles (CGP) are determined by the cluster properties which can be predicted by the EMMS model. The coefficient of restitution is modified according to the kinetic theory of granular flows (KTGF). The method thus established in called EMMS-DPM(Lu, Xu et al. 2014). As for computation, using system shared memory, the CFD computation on CPU is fully overlapped with particle computation on GPU. Also, the computation program is coupled with parallel visualization and control program, forming an online interactive simulation platform(Ge, Lu et al. 2015). This method is verified by the simulation of two different CFB risers and several orders of speedup can be achieved. A methanol to orifin (MTO) process is simulated for more than 6800s. We also simulated a CFB with 30kg 0.082mm particles in 3D full loop. Furthermore, the interactive simulation platform can also be used for education and training purpose since it allows virtual experiment on computers. REFERENCES 1.Ge, W., L. Lu, S. Liu, J. Xu, F. Chen and J. Li (2015). Multiscale Discrete Supercomputing - A Game Changer for Process Simulation? Chemical Engineering & Technology 38(4): 575-584. 2.Lu, L., J. Xu, W. Ge, Y. Yue, X. Liu and J. Li (2014). EMMS-based discrete particle method (EMMS–DPM) for simulation of gas–solid flows. Chemical Engineering Science 120(0): 67-87

Sheldon Hsiao-peng Lu. Transnational Chinese cinemas : identity, nationhood, gender

This article reviews the book Transnational Chinese Cinemas: Identity, Nationhood, Gender edited by Sheldon Hsiao-peng Lu

Labeling and purification studies on cancer targeting DOTA-TATE labeled with radiolanthanides

Abstract only availableMolecular imaging and targeted radiotherapy are emerging fields for cancer treatment. DOTA-Tyr (3)-Thr(9)-octreotate (DOTA-TATE) is used for peptide receptor-mediated radionuclide therapy (PRMRT) in neuroendocrine tumours. These biomolecules can be radiolabeled with an appropriated radioisotope to produce radiopharmaceuticals for diagnostic and therapeutic applications. The DOTA-TATE molecule is comprised of a bifunctional chelate (DOTA) that is capable of stably binding a radiolanthanide as well as being covalently attached to a targeting biomolecule (e.g.,octreotate). Among the radiolanthanides, Ho-166, Tb-161 and Lu-177, that were used to label the peptide, Lu-177 was used to obtain optimum conditions. Direct neutron capture on Lu-176 produces Lu-177. The indirect production of Lu-177 proceeds by neutron capture on Yb-176 producing Yb-177, which beta decays to Lu-177. Chromatographic separation yields high specific activity Lu-177 that minimizes the presence of cold Lu-176. Lanthanides have similar chemical properties that allow further studies to apply similar conditions as those developed for Lu-177. In addition, longevity of half-life of Lu-177 enables longer periods of dose delivery to targeted tumors. This research focused on identifying appropriate buffer solutions and volumes that could neutralize the acidic radioisotope to appropriate pH levels to label the peptide in high yield. The sample was purified from the unlabeled peptide by using HPLC separations methods and adding stabilizing agents (ascorbic and gentisic acid) to prevent radiolysis of the radiolabeled peptide. The results for the labeled peptide with various radioisotopes shows that 0.4 M NH4OAc, 0.4 M NaOAc, and 0.01 M HEPES buffer solution in 500 µL yields 99% labeling at pH ranging from 6.0 to 7.5. The labeled ligand at equimolar ratio with the metal yields 3 mCi/µg of the ligand, whereas as high specific activity sample can label up to 6.68 mCi/µg of the ligand. Carrier free Lu-177-DOTA-TATE was labeled using 0.01 M HEPES buffer at pH 6.0 and remains stable after using ascorbic acid; gentisic acid shows interference on HPLC which may cause some purification problems. (Ho- holmium, Tb- terbium Lu- lutetium)U.S. Dept. of Energy Innovations in Nuclear Infrastructure and Education Summer MURR Undergraduate Research Scholarshi

Cardiovascular Responses Differ Between Different Orders of Upper- and Lower-Body Resistance Exercise

Upper-body resistance exercise (RE) induces different cardiovascular responses compared to lower-body RE. However, combination of upper- and lower-body RE with different orders on cardiovascular responses are unclear. PURPOSE: To evaluate the effects of different orders of upper-and lower-body RE on cardiovascular responses in active men. METHODS: Thirteen active men (22±2 years old) participated in the study. Heart rate (HR), systolic and diastolic blood pressure (BP), cardiac output (CO), stroke volume (SV), and total peripheral resistance (TPR) were assessed at rest, 15-20 (R1), and 25-30 (R2) minutes after performing upper- and lower-body RE (UL) or lower- and upper-body RE (LU) for 3 sets of 10 repetitions at 75% 1-repetition maximum with 90-second and 2-minute rests between sets and exercises, respectively. The upper-body RE consisted of pulldown and chest press while lower-body RE consisted of knee extension and knee flexion. A repeated measures ANOVA was used to evaluate the conditions (UL, LU) across time (rest, R1, R2) on cardiovascular responses. RESULTS: There were time-by-condition interactions (p\u3c0.05) for CO and SV such that CO was significantly elevated at R1 and R2 after UL and LU compared to rest while UL had higher CO compared to LU at R1 (UL: rest: 5.68±0.99 L/min; R1: 9.09±1.44 L/min; R2: 7.65±1.87 L/min; and LU: rest: 5.55±0.78 L/min; R1: 8.14±1.65 L/min; R2: 7.23±1.76 L/min). SV was significantly increased after UL at R1 compared to rest and LU (UL: rest: 85.2±16.5 ml/beat; R1: 90.9±14.3 ml/beat; R2: 81.8±18.8 ml/beat; and LU: rest: 84.7±12.7 ml/beat; R1: 83.0±13.9 ml/beat; R2: 78.6±16.2 ml/beat). TPR was significantly (p\u3c0.001) reduced at R1 and R2 compared to rest after UL and LU with greater reduction after UL compared to LU (UL: rest: 0.96±0.27 mmHg•min/L; R1: 0.53±0.16 mmHg•min/L; R2: 0.68±0.22 mmHg•min/L; and LU: rest: 1.03±0.33 mmHg•min/L; R1: 00.67±0.26 mmHg•min/L; R2: 0.77±0.26 mmHg•min/L). HR was significantly (p\u3c0.001) increased at R1 and R2 after UL and LU compared to rest. Systolic BP was significantly (p=0.026) decreased after LU at R1 compared to rest and R2. However, there was no change for diastolic BP. CONCLUSION: These data suggest that UL significantly increases cardiac output and stroke volume than LU which means different orders of RE change cardiovascular responses

Old tales, untold : Lu Xun against world literature

World literature has smiled on Lu Xun 魯迅. He stands, if not as the foremost, then as a major representative of modern Chinese literature in anthologies. Though anthologies are not the ultimate arbiters of literary worldliness, they are influential discursive sites because of their accessibility and classroom utility. To wit, he is a common figure on university syllabi in world literature surveys. Professionally, scholarship on Lu Xun’s work reaches far beyond disciplinary Chinese studies. His works have been translated and retranslated many times in less than a century. All this is perhaps fitting considering his extraordinary services rendered to world literature as a reader and translator. Following David Damrosch’s (2003) provisional definition of world literature as circulation beyond a national origin (281), Lu Xun enabled dozens of works to circulate in Chinese, and in turn his works circulate beyond the Sinosphere. But not all of them. If, following Franco Moretti (2013), we were to look at world literature as a market, a work’s circulation has to do with the demands of readers as much as with its innate qualities (69-70). These demands reflect geopolitical realities, to be sure, but can also constitute an apologetics for them