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| 1 | Construction of LDPC Codes for the Layered Decoding Algorithm显示文摘The layered decoding algorithm has been widely used in the implementation of Low Density Parity Check (LDPC) decoders, due to its high convergence speed. However, the pipeline operation of the layered decoder may introduce memory access conflicts, which heavily deteriorates the decoder throughput. To essentially deal with the issue of memory access conflicts, we propose a construction algorithm of LDPC codes, to which a constraint condition is added in the Progressive Edge-Growth (PEG) algorithm. The constraint condition can guarantee that for our constructed LDPC codes, the sets of all the variable nodes connected to the consecutive layers do not share any common variable node, which can avoid the memory access conflicts. Simulation results show that the performance of our constructed LDPC codes is close to the several other LDPC codes adopted in wireless standards. Moreover, compared with the decoder for IEEE 802. 16e LDPC codes, the throughput of our LDPC decoder has large improvement, while the chip resource consumption is unchanged. Thus, our constructed LDPC codes can be adopted in the high-speed transmission. | Wang Da Dong Mingke Chen Chen Jin Ye Xiang Haige | 2012 | China Communications2012，9，7： | 4 |
| 2 | Survival after radical cystectomy for bladder cancer:Multicenter comparison between minimally invasive and open approaches显示文摘Objective:To investigate oncological outcomes in patients with bladder cancer who underwent minimally invasive radical cystectomy(MIRC)or open radical cystectomy(ORC).Methods:We identified patients with bladder cancer who underwent radical cystectomy(RC)in 13 centers of the Chinese Bladder Cancer Consortium(CBCC).Perioperative outcomes were compared between MIRC and ORC.The influence of surgical approaches on overall survival(OS)and cancer-specific survival(CSS)in the entire study group and subgroups classified according to pathologic stage or lymph node(LN)status was assessed with the log-rank test.Multivariable Cox proportional hazard models were used to evaluate the association among OS,CSS and risk factors of interest.Results:Of 2098 patients who underwent RC,1243 patients underwent MIRC(1087 laparoscopic RC and 156 robotic-assisted RC,respectively),while 855 patients underwent ORC.No significant differences were noted in positive surgical margin rate and 90-day postoperative mortality rate.MIRC was associated with less estimated blood loss,more LN yield,higher rate of neobladder diversion,longer operative time,and longer length of hospital stay.There was no significant difference in OS and CSS according to surgical approaches(pZ0.653,and 0.816,respectively).Subgroup analysis revealed that OS and CSS were not significantly different regardless of the status of extravesical involvement or LN involvement.Multivariable Cox regression analyses showed that the surgical approach was not a significant predictor of OS and CSS.Conclusions:Our study showed that MIRC was comparable to conventional ORC in terms of OS and CSS. | Weibin Xie Junming Bi Qiang Wei Ping Han Dongkui Song Lei Shi Dingwei Ye Yijun Shen Xin Gou Weiyang He Shaogang Wang Zheng Liu Jinhai Fan Kaijie Wu Zhiwen Chen Xiaozhou Zhou Chuize Kong Yang Liu Chunxiao Liu Abai Xu Baiye Jin Guanghou Fu Wei Xue Haige Chen Tiejun Pan Zhong Tu Tianxin Lin Jian Huang | 2020 | Asian Journal of Urology2020，7，3： | 1 |
| 3 | Spontaneous regression of mantle cell lymphoma: a report of four cases显示文摘Background:Spontaneous regression has been reported in some indolent forms of lymphoma.Mantle cell lym-phoma(MCL)is an aggressive lymphoid neoplasm and has a poor prognosis.However,approximately 30%of MCL patients can exhibit indolent clinical behavior.To date,complete spontaneous regression of MCL has not been reported.Case presentation:We describe four cases of spontaneous regression of MCL.At the time of presentation,these patients were asymptomatic,with lymph node enlargement and mild to moderate fluorodeoxyglucose(FDG)uptake on FDG-positron emission tomography combined with computed tomography.One of the possible mechanisms of spontaneous regression of the tumor could be due to the host immune response through humoral and cellular immunity,which may have a role in the clearance of tumor cells.Conclusions:In this report,we support the use of a“wait and watch”strategy for MCL patients with no risk factors and indolent behavior.This strategy helps spare patients from further potentially harmful chemotherapy.In addition,we describe the phenomenon of spontaneous regression in MCL patients who are asymptomatic and have low-volume disease. | Haige Ye Aakash Desai Tiejun Gong Dongfeng Zeng Krystle Nomie Wendy Chen Wei Wang Jorge Romaguera Michael L.Wang | 2018 | Cancer Communications2018，38，1： | 0 |
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