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( Sayuri Yamamoto ),( Yurika Kawamura ),( Kazuhiro Yamamoto ),( Yoshiharu Yamaguchi ),( Yasuhiro Tamura ),( Shinya Izawa ),( Hiroaki Nakagawa ),( Yoshinori Wakita ),( Yasutaka Hijikata ),( Masahide Eb 대한소화기기능성질환·운동학회 2021 Journal of Neurogastroenterology and Motility (JNM Vol.27 No.4
Background/Aims Chronic constipation and lifestyle factors can affect sleep quality. We evaluated the relationship between chronic constipation and sleep in the Japanese population. Methods This cross-sectional internet-based survey included 3000 subjects with constipation, classified according to sleep status (good/poor). Primary endpoints were Bristol stool form scale (BSFS) score and correlations between sleep disorder criteria of the Pittsburgh Sleep Quality Index (PSQI) and sleep status (good/poor sleep). Secondary endpoints included correlations between quality of life (QOL) and mood, medical, lifestyle, and sleep factors. Results The proportion of participants with BSFS category 4 (normal stool) was significantly higher in the good sleep group (P < 0.001). Sleep disturbance (P < 0.05), sleep quality, and duration, use of hypnotic medication, and daytime dysfunction of PSQI (all P < 0.001) significantly correlated with poor sleep. In the poor sleep group, QOL was significantly worse and anxiety and depression levels were significantly higher (all P < 0.001) compared with the good sleep group. Anemia and smoking (both P < 0.05), recent body weight increases, and poor eating habits (all P < 0.001) were significantly higher in the poor sleep group. Male sex, onset associated with change in frequency of stools, sensation of incomplete evacuation for at least 25% of defecations, and manual maneuvers to facilitate at least 25% of defecations correlated with poor sleep. Conclusions Subjects with constipation and poor sleep experienced severe symptoms and had poor QOL. These data support the need for a multifocal treatment approach, including lifestyle advice and pharmacotherapy. (J Neurogastroenterol Motil 2021;27:602-611)
Complex Multiplier suited for EPGA structure
Keiichi Satoh,Jubee Tada,Kenta Yamaguchi,Yasutaka Tamura 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
In this paper, we propose complex multiplier suited for FPGA structure to achieve higher performance and lower cost. The complex multiplier is based on LUT (Look-Up-Table) and carry-chain from FPGA structure, we utilize Booth algorithm for partial product generation and Wallace tree utilizing effectively LUTs and carry-chains in the FPGA structure for the partial products compression to design it. We design Wallace trees of various types utilizing LUTs and carry-chains, the complex multipliers implemented the trees are synthesized by synthesis tool. Consequently, the proposed complex multipliers are superior to one synthesized by operator(’*’,’+’, and ’-’) from VHDL description for both the path delay and the scale.