为探讨学生和非学生群体的睡眠时型与抑郁的关系,以及时间洞察力在二者关系中的作用机制,采用清晨型–夜晚型问卷、津巴多时间洞察力量表和流调中心用抑郁量表对222名学生和292名非学生样本进行问卷调查。研究结果显示:学生的睡眠时型总...为探讨学生和非学生群体的睡眠时型与抑郁的关系,以及时间洞察力在二者关系中的作用机制,采用清晨型–夜晚型问卷、津巴多时间洞察力量表和流调中心用抑郁量表对222名学生和292名非学生样本进行问卷调查。研究结果显示:学生的睡眠时型总分(48.42 ±7.89)低于非学生(52.05 ±8.40),抑郁得分(20.65 ±11.69)高于非学生(13.99 ±9.68),学生与非学生的抑郁检出率分别为45.9%和28.3%;学生样本和非学生样本的睡眠时型均与抑郁水平呈显著负相关(r = ?0.27, p 【0.001;r = ?0.19, p 【0.01),睡眠时型对抑郁具有直接的负向预测作用(β = ?0.26, t = ?4.12, p 【0.001;β = ?0.20, t = ?3.36, p 【0.01);在学生样本中,现在宿命、未来时间洞察力在睡眠时型与抑郁的关系中起中介作用(效应值分别为:?0.06、?0.04);在非学生样本中,过去消极、过去积极、未来时间洞察力在睡眠时型与抑郁的关系间起中介作用(效应值分别为:?0.07、?0.04、?0.04)。结论:睡眠时型既可直接对抑郁产生影响,又可通过时间洞察力间接对抑郁起作用。展开更多
目的系统评价青少年睡眠时型与抑郁症状的相关性。方法计算机检索CNKI、VIP、WanFang Data、PubMed、ScienceDirect和Web of Science数据库,搜集有关青少年睡眠时型与抑郁症状关联的研究,检索时限均为建库至2022年1月17日。由2名研究者...目的系统评价青少年睡眠时型与抑郁症状的相关性。方法计算机检索CNKI、VIP、WanFang Data、PubMed、ScienceDirect和Web of Science数据库,搜集有关青少年睡眠时型与抑郁症状关联的研究,检索时限均为建库至2022年1月17日。由2名研究者独立筛选文献、提取资料并评价纳入研究的偏倚风险后,采用Stata 16.0软件进行Meta分析。结果共纳入12个研究。Meta分析结果显示:青少年睡眠时型与抑郁症状之间存在相关性[Fisher’s Z=-0.19,95%CI(-0.21,-0.17),P<0.001]。结论当前证据表明,青少年的夜晚型睡眠时型可能是抑郁发生的危险因素之一。受纳入研究数量和质量的限制,上述结论尚待更多高质量研究予以验证。展开更多
This paper investigates on the base stations(BSs) sleeping control and energy saving in wireless network. The objective is to find the sleeping control and energy saving configuration between total power consumption a...This paper investigates on the base stations(BSs) sleeping control and energy saving in wireless network. The objective is to find the sleeping control and energy saving configuration between total power consumption and average video's quality. On the Software Defined Network(SDN) access network architecture, a type of sleeping control and active BSs' optimal transmitting time strategy is considered, the BS sleeps when there is no active users, and wakes up after a period of vacation time. In this paper, we study the active users grouping strategy, In order to spare more BSs into sleeping mode. Then this paper proposes an active BS transmitting time optimal strategy according to the users' Qo S. In the proposed strategy, the active BSs' transmitting time is minimized in order to save energy. This paper employs the mixed integer-programming model to present this optimization problem. Then we utilized a novel algorithm to save the energy in access networks and also meet the Qo S requirements. Both the analytical and simulation results show that the algorithm can effectively save energy in the access network BSs.展开更多
Amiodarone hydrochloride is a potent anti-arrhythmic agent, known as a multiple ion-channel blocker in the heart. Although it has been detected in the rat brain, there are no data related to its central nervous system...Amiodarone hydrochloride is a potent anti-arrhythmic agent, known as a multiple ion-channel blocker in the heart. Although it has been detected in the rat brain, there are no data related to its central nervous system （CNS） effects. In this study, we evaluated anticonvulsant and hypnotic effects of amiodarone. Convulsions were induced by phentylenetetrazole （PTZ） （100 mg/kg） or caffeine （300 mg/kg） in mice. In both models, amiodarone prolonged both latency period and time to death, and acted as an anticonvulsant drug. It was found to be more effective in the PTZ model than in the caffeine model; none of the animals treated with 150 mg/kg dose amiodarone had died in the PTZ model. For hypnotic effect, sleeping was induced with pentobarbital （35 mg/kg） in rats. Amiodarone dose-dependently increased the sleeping time （677.7%-725.9%）. In the sleeping test, all rats in 200 mg/kg amiodarone group died. In conclusion, anticonvulsant and hypnotic effects of amiodarone have shown the depressant effects on CNS. These effects may be dependent on its pharmacological properties.展开更多
文摘为探讨学生和非学生群体的睡眠时型与抑郁的关系,以及时间洞察力在二者关系中的作用机制,采用清晨型–夜晚型问卷、津巴多时间洞察力量表和流调中心用抑郁量表对222名学生和292名非学生样本进行问卷调查。研究结果显示:学生的睡眠时型总分(48.42 ±7.89)低于非学生(52.05 ±8.40),抑郁得分(20.65 ±11.69)高于非学生(13.99 ±9.68),学生与非学生的抑郁检出率分别为45.9%和28.3%;学生样本和非学生样本的睡眠时型均与抑郁水平呈显著负相关(r = ?0.27, p 【0.001;r = ?0.19, p 【0.01),睡眠时型对抑郁具有直接的负向预测作用(β = ?0.26, t = ?4.12, p 【0.001;β = ?0.20, t = ?3.36, p 【0.01);在学生样本中,现在宿命、未来时间洞察力在睡眠时型与抑郁的关系中起中介作用(效应值分别为:?0.06、?0.04);在非学生样本中,过去消极、过去积极、未来时间洞察力在睡眠时型与抑郁的关系间起中介作用(效应值分别为:?0.07、?0.04、?0.04)。结论:睡眠时型既可直接对抑郁产生影响,又可通过时间洞察力间接对抑郁起作用。
基金supported by the National High-Tech R&D Program (863 Program2015AA01A705)in part by Beijing Municipal Commission of Education (The City's Vehicle Sensing Grid Construction Based on Public Transportation Network)
文摘This paper investigates on the base stations(BSs) sleeping control and energy saving in wireless network. The objective is to find the sleeping control and energy saving configuration between total power consumption and average video's quality. On the Software Defined Network(SDN) access network architecture, a type of sleeping control and active BSs' optimal transmitting time strategy is considered, the BS sleeps when there is no active users, and wakes up after a period of vacation time. In this paper, we study the active users grouping strategy, In order to spare more BSs into sleeping mode. Then this paper proposes an active BS transmitting time optimal strategy according to the users' Qo S. In the proposed strategy, the active BSs' transmitting time is minimized in order to save energy. This paper employs the mixed integer-programming model to present this optimization problem. Then we utilized a novel algorithm to save the energy in access networks and also meet the Qo S requirements. Both the analytical and simulation results show that the algorithm can effectively save energy in the access network BSs.
文摘Amiodarone hydrochloride is a potent anti-arrhythmic agent, known as a multiple ion-channel blocker in the heart. Although it has been detected in the rat brain, there are no data related to its central nervous system （CNS） effects. In this study, we evaluated anticonvulsant and hypnotic effects of amiodarone. Convulsions were induced by phentylenetetrazole （PTZ） （100 mg/kg） or caffeine （300 mg/kg） in mice. In both models, amiodarone prolonged both latency period and time to death, and acted as an anticonvulsant drug. It was found to be more effective in the PTZ model than in the caffeine model; none of the animals treated with 150 mg/kg dose amiodarone had died in the PTZ model. For hypnotic effect, sleeping was induced with pentobarbital （35 mg/kg） in rats. Amiodarone dose-dependently increased the sleeping time （677.7%-725.9%）. In the sleeping test, all rats in 200 mg/kg amiodarone group died. In conclusion, anticonvulsant and hypnotic effects of amiodarone have shown the depressant effects on CNS. These effects may be dependent on its pharmacological properties.
