Zhigang Ji

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BACKGROUND Academic burnout refers to students who have low interest, lack of motivation, and tiredness in studying. Studies concerning how to prevent academic burnout are rare. OBJECTIVE The present study aimed to investigate the impact of core self-evaluations on the academic burnout of university students, and mainly focused on the confirmation of the(More)
OBJECTIVES To explore the feasibility and safety of retroperitoneal laparoscopic resection of paraganglioma (RLPG) in a large study population. METHODS In a six-year period, 49 patients with primary retroperitoneal paragangliomas (PG) underwent retroperitoneal laparoscopic surgery in a single center. Medical records were reviewed, and collected the(More)
We aimed to compare the safety and patient outcomes of retroperitoneal paraganglioma (PG) following the retroperitoneoscopic and transperitoneoscopic approaches based on large samples.Seventy-four patients with retroperitoneal PG undergoing laparoscopic resection from June 2004 to September 2013 were retrospectively included. The patients were divided into(More)
OBJECTIVE To evaluate the clinical efficacy of sorafenib as preoperative neoadjuvant therapy in patients with high risk renal cell carcinoma (RCC). MATERIALS AND METHODS Clinical data of 18 patients with high risk RCC who received surgery done successfully after preoperative neoadjuvant therapy with sorafenib in Peking Union Medical College Hospital(More)
PURPOSE To investigate the long-term efficacy of (125)I brachytherapy in early-stage prostate cancer and to identify correlating factors. METHODS This study included 117 cases of early stage prostate cancer. The patients ranged in age from 51 to 84 years, with a mean of 73 years. The features of the study population were as follows: the PSA ranged from(More)
STUDY DESIGN We used optogenetic techniques in spinal cord and dorsal root ganglion (DRG) neuron studies. OBJECTIVE This study investigated changes in channelrhodopsin-2 (ChR2) expression in the spinal cord and DRG neurons using optogenetic techniques. The results show the possibility of using optogenetics to treat neuropathic pain. SUMMARY OF(More)
A probing technique to obtain the energy distribution of positive charges in high-k gate stack dielectrics, both within and beyond the substrate bandgap, has been proposed. The energy distribution of different high-k devices has been investigated and attention has been paid to their differences from the single-lay-ered SiON devices. The results obtained(More)