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We study the secure degrees of freedom (d.o.f.) of one-hop wireless networks by considering four fundamental wireless network structures: 1) Gaussian wiretap channel; 2) Gaussian broadcast channel with confidential messages; 3) Gaussian interference channel with confidential messages; and 4) Gaussian multiple access wiretap channel. The secrecy capacity of(More)
We show that the sum secure degrees of freedom (d.o.f.) of the K-user Gaussian multiple access (MAC) wiretap channel is K(K-1)/K(K-1)+1. Our achievability is based on real interference alignment and structured cooperative jamming. Each user divides its message into K - 1 sub-messages, and sends a linear combination of signals carrying these sub-messages(More)
We determine the exact sum secure degrees of freedom (d.o.f.) of the K -user Gaussian interference channel. We consider three different secrecy constraints: 1) K -user interference channel with one external eavesdropper (IC-EE); 2) K -user interference channel with confidential messages (IC-CM); and 3) K -user interference channel with confidential messages(More)
Laparoscopic resection of gastric gastrointestinal stromal tumors (GISTs) appears technically feasible and associated with favorable outcomes. Tumor size plays an important role in surgical approach, with laparotomy tending to be used to treat larger tumors. This study evaluated the technical feasibility, safety, and oncologic efficacy of laparoscopic(More)
BACKGROUND The application of laparoscopic surgery for advanced gastric cancer (AGC) remains questionable on account of technical difficulty of D2 lymphadenectomy, and there has been few large-scale follow-up results regarding the oncological adequacy of laparoscopic surgery compared with that of open surgeries for AGC. The aim of this study is to evaluate(More)
BACKGROUND Little is known about the feasibility and safety of laparoscopy-assisted total gastrectomy (LATG) with extended lymphadenectomy in patients with advanced gastric cancer (AGC). This study compared the technical feasibility, safety, and oncologic efficacy of LATG with open total gastrectomy (OTG) for AGC without serosa invasion. METHODS From(More)
Progesterone, through the progesterone receptor (PR), promotes development of the normal mammary gland and is implicated in the etiology of breast cancer. We identified PRA-regulated genes by microarray analysis of cultured epithelial organoids derived from pubertal and adult mouse mammary glands, developmental stages with differing progesterone(More)
Sulfur mustard (SM) is a hazardous chemical warfare agent that has been used in several military conflicts. SM is also considered as a major threat to civilians because of its existing stockpiles and easy production. Analysis of exposure biomarkers in biological samples collected from suspected victims is a useful tool for early diagnosis of SM poisoning.(More)
BACKGROUND Gastric cancer is a common malignancy worldwide and a common cause of death from cancer. Despite recent advances in multimodality treatment and targeted therapy, complete resection remains the only treatment that can lead to cure. This study was devised to investigate the technical feasibility, safety and oncologic efficacy of(More)
To evaluate the safety, feasibility and clinical results of the modified delta-shaped gastroduodenostomy (MDSG) in totally laparoscopic distal gastrectomy (TLDG) for gastric cancer (GC). We performed a case–control and case-matched study enrolling 642 patients with GC undergoing laparoscopic distal gastrectomy with Billroth-I anastomosis from January 2011(More)