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云南剑川鼠疫疫源地野外鼠形动物寄生蚤丰盛度和丰富度影响因素

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中华疾病控制杂志 2024年第1期28卷 75-82页

作者：武丽罗云燕黎文鸿洪汝丹艾志琼尹家祥大理大学公共卫生学院流行病与卫生统计学教研室大理671003

目的分析鼠形动物特征和环境因子与鼠形动物寄生蚤的关系,明确影响云南剑川鼠疫疫源地野外鼠形动物寄生蚤丰盛度和丰富度的因素。方法选取剑川县作为采样点,分别在4个季节不同海拔梯度进行鼠形动物、寄生蚤、环境因子取样。使用跨栏模... 详细信息

目的分析鼠形动物特征和环境因子与鼠形动物寄生蚤的关系,明确影响云南剑川鼠疫疫源地野外鼠形动物寄生蚤丰盛度和丰富度的因素。方法选取剑川县作为采样点,分别在4个季节不同海拔梯度进行鼠形动物、寄生蚤、环境因子取样。使用跨栏模型分析环境因子(季节、生境、海拔)和鼠形动物特征指标(种类、性别、年龄、体长、体重等)与鼠形动物寄生蚤丰盛度和丰富度的关系。结果寄生蚤丰盛度跨栏负二项回归模型多因素分析结果显示:相比于春季,夏季、秋季、冬季的染蚤率分别降低了68%、78%、45%。与耕地相比,林地中野外鼠形动物染蚤数量减少了35%。与齐氏姬鼠相比,大绒鼠的染蚤率增加了0.41倍,中华姬鼠的染蚤率降低54%,其他种类的鼠形动物染蚤率降低了39%;中华姬鼠的染蚤数量降低60%。雌性鼠形动物染蚤率降低了25%。成年的鼠形动物染蚤数量降低了44%。体长>100 mm、耳高>13 mm的鼠形动物染蚤率分别增加了0.48、0.53倍。尾长>13 mm的鼠形动物的染蚤数量降低了49%。寄生蚤丰富度跨栏Poisson回归模型多因素分析结果显示:相比于春季,夏季、秋季、冬季的染蚤率显著降低,分别降低了68%、78%、45%。林地比耕地染蚤种类降低了47%。与齐氏姬鼠相比,大绒鼠染蚤率增加了0.41倍,中华姬鼠的染蚤率降低54%,其他鼠形动物种类染蚤率减低了39%。雌性鼠形动物染蚤率降低了25%。体长>100 mm、耳高>13 mm的鼠形动物染蚤率分别增加了0.48、0.53倍。结论影响寄生蚤丰盛度的因素包括季节、生境,以及鼠形动物种类、性别、年龄、体长、尾长、耳高。影响寄生蚤丰富度的因素包括季节、生境,以及鼠形动物种类、性别、体长、耳高。

关键词：寄生蚤丰盛度丰富度鼠形动物影响因素

A Finite Difference Scheme for Blow-Up Solutions of Nonlinear Wave Equations

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Numerical Mathematics(Theory,Methods and Applications) 2010年第4期3卷 475-498页

作者： Chien-hong Cho Research Institute for Mathematical Sciences Kyoto UniversityKyoto 606-8502Japan Department of Mathematics National Chung Cheng UniversityMin-HsiungChia-Yi 621Taiwan

We consider a finite difference scheme for a nonlinear wave equation, whose solutions may lose their smoothness in finite time, i.e., blow up in finite time. In order to numerically reproduce blow-up solutions, we propose a rule for a time-stepping,which is a variant of what was successfully used in the case of nonlinear parabolic equations. A numerical blow-up time is defined and is proved to converge, under a certain hypothesis, to the real blow-up time as the grid size tends to zero.

关键词： Finite difference method nonlinear wave equation blow-up

Properties and Iterative Methods for the Lasso and Its Variants

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Chinese Annals of Mathematics,Series B 2014年第3期35卷 501-518页

作者： hong-Kun XU Department of Applied Mathematics National Sun Yat-Sen University Department of Mathematics King Abdulaziz University

The lasso of Tibshirani （1996） is a least-squares problem regularized by the l1 norm. Due to the sparseness promoting property of the l1 norm, the lasso has been received much attention in recent years. In this paper some basic properties of the lasso and two variants of it are exploited. Moreover, the proximal method and its variants such as the relaxed proximal algorithm and a dual method for solving the lasso by iterative algorithms are presented.

关键词： Lasso Elastic net Smooth-lasso l1 regulaxization Sparsity Proximalmethod Dual method Projection Thresholding

云南省弥勒市、芒市和梁河县人群和犬猫弓形虫血清流行病学调查分析

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中华地方病学杂志 2024年第7期43卷 542-548页

作者：卢江丽李进春韦蓉罗云燕洪汝丹尹家祥大理大学公共卫生学院大理

目的调查云南省3个县(市)人群和犬猫弓形虫血清流行病学现状及其影响因素, 评估犬猫将弓形虫传播给人类并致病及流行的风险。方法选择云南省弥勒市、芒市和梁河县3个家鼠鼠疫疫源地所在县(市)作为调查地区, 采集16个自然村的人群及犬猫... 详细信息

目的调查云南省3个县(市)人群和犬猫弓形虫血清流行病学现状及其影响因素, 评估犬猫将弓形虫传播给人类并致病及流行的风险。方法选择云南省弥勒市、芒市和梁河县3个家鼠鼠疫疫源地所在县(市)作为调查地区, 采集16个自然村的人群及犬猫血样, 采用间接酶联免疫吸附试验检测血清弓形虫IgG抗体, 并对其影响因素进行logistic回归分析。结果共检测368份人血清、307份犬血清、12份猫血清, 弓形虫IgG抗体阳性率分别为54.62%(201/368)、90.88%(279/307)、91.67%(11/12)。logistic回归分析显示, 芒市和梁河县人群弓形虫感染风险(血清IgG抗体阳性)分别是弥勒市的8.20倍(AOR = 8.20, 95%CI:4.38 ～ 15.36)、2.22倍(AOR = 2.22, 95%CI:1.24 ～ 3.97);30 ～ < 40岁年龄组人群弓形虫感染风险(血清IgG抗体阳性)比< 30岁年龄组减少57%(AOR = 0.43, 95%CI:0.19 ～ 0.98, 均P < 0.10)。梁河县犬弓形虫感染风险(血清IgG抗体阳性)比弥勒市减少89%(AOR = 0.11, 95%CI:0.02 ～ 0.47);2岁及以上犬弓形虫感染风险(血清IgG抗体阳性)是2岁以下犬的2.05倍(AOR = 2.05, 95%CI:0.91 ～ 4.64, 均P < 0.10)。结论云南省3个家鼠鼠疫疫源地所在县(市)人群和犬猫血清弓形虫IgG抗体阳性率均较高, 人群和犬弓形虫感染风险(血清IgG抗体阳性)与地区和年龄有关, 犬猫将弓形虫传播给人类及其他动物的风险较大, 应加强重点区域监测, 开展健康教育, 并采取相应卫生措施。

关键词：弓形虫人犬血清学影响因素鼠疫疫源地

Blood Pressure and Heart Rate Measurements Using Photoplethysmography with Modified LRCN

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Computers, Materials & Continua 2022年第4期71卷 1973-1986页

作者： Chih-Ta Yen Cheng-hong Liao Department of Electrical Engineering Taiwan Ocean UniversityKeelung City202301Taiwan Department of Electrical Engineering National Formosa UniversityYunlin County632Taiwan

In this study,single-channel photoplethysmography(PPG)signals were used to estimate the heart rate(HR),diastolic blood pressure(DBP),and systolic blood pressure(SBP).A deep learning model was proposed using a long-term recurrent convolutional network(LRCN)modified from a deep learning algorithm,the convolutional neural network model of the modified inception deep learning module,and a long short-term memory network(LSTM)to improve the model’s accuracy of BP and HR *** PPG data of 1,551 patients were obtained from the University of California Irvine Machine Learning *** to design a filter of PPG signals and how to choose the loss functions for deep learning model were also discussed in the ***,the stability of the proposed model was tested using a 10-fold cross-validation,with an MAE±SD of 2.942±5.076 mmHg for SBP,1.747±3.042 mmHg for DBP,and 1.137±2.463 bpm for the *** with its existing counterparts,the model entailed less computational load and was more accurate in estimating SBP,DBP,and *** results established the validity of the model.

关键词： Photoplethysmography(PPG)signal deep learning blood pressure systolic blood pressure(SBP) diastolic blood pressure(DBP) heart rate(HR)

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疑在不疑处,崔颢《黄鹤楼》研读三题

贵州师范学院学报 2024年第7期40卷 9-17页

作者：孙秀华郭宏玮贵州师范学院生物科学学院贵州贵阳550018 贵州师范学院教师工作处贵州贵阳550018

在不疑处生疑,对被誉为“唐人七言律诗第一”的崔颢《黄鹤楼》诗进行文本细读,可厘清其艺术手法借鉴模仿的源流,可探究诗作蕴涵的忠君立场与政治思想,可深挖诗篇所隐用的祢衡典故,进而理解其“怀才不遇”等思想情感的表达。研究发现,崔... 详细信息

在不疑处生疑,对被誉为“唐人七言律诗第一”的崔颢《黄鹤楼》诗进行文本细读,可厘清其艺术手法借鉴模仿的源流,可探究诗作蕴涵的忠君立场与政治思想,可深挖诗篇所隐用的祢衡典故,进而理解其“怀才不遇”等思想情感的表达。研究发现,崔颢《黄鹤楼》诗思想感情含蓄、内敛、深沉,并非只有“日暮乡关何处是”的思乡之情。

关键词：崔颢《黄鹤楼》诗沈佺期《龙池篇》传播与接受文本细读

Rise and fall of anti-obesity drugs

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World Journal of Diabetes 2011年第2期2卷 19-23页

作者： Bernard my Cheung Department of Medicine the University of Hong Kong

Although it is not generally a life-threatening disease,obesity is becoming a major health problem *** can be controlled by means of drugs,and,consequently,these are required to be safe as well as *** this paper,we summarize the fate of various drugs that have been introduced for clinical use in the treatment of *** and dexfenfluramine were withdrawn because of heart valve *** suppresses appetite and increases heart rate and blood *** the Sibutramine Cardiovascular OUTcomes trial,an increase in major adverse cardiovascular events prompted its withdrawal in Europe and the United *** is an endocannabinoid receptor antagonist that reduces body weight and ameliorates some cardiovascular risk ***,adverse psychiatric side effects led to its withdrawal as *** is approved in Europe and the United States for the treatment of obesity,but its use is limited by gastrointestinal *** and caffeine are natural ingredients in foods and supplements that may help the person to lose *** the light of several failed attempts,there is a clear need to develop drugs that are effective and safe in the long term in order to successfully combat the phenomenon of obesity.

关键词： Obesity Anti-obesity drugs Sibutramine Rimonabant Orlistat

Voltage control of magnetization switching and dynamics

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Chinese Physics B 2018年第6期27卷 443-447页

作者： hong-Yu Wen Jian-Bai Xia The State Key Laboratory of Superlattices and Microstructures Institute of Semiconductors Chinese Academy of Sciences Beijing 100083 China

The voltage controlled magnetic switching effect is verified experimentally. The Landau–Lifshitz–Gilbert（LLG）equation is used to study the voltage controlled magnetic switching. It is found that the initial values of magnetic moment components are critical for the switching effect, which should satisfy a definite condition. The external magnetic field which affects only the oscillation period should be comparable to the internal magnetic field. If the external magnetic field is too small, the switching effect will disappear. The precessions of mx and my are the best for the tilt angle of the external magnetic field θt = 0？, i.e., the field is perpendicular to the sample plane.

关键词： magnetic switching voltage control spin transfer torque Landau-Lifshitz-Gilbert (LLG) equa- tion

Common Glory:the Traditional and the Contemporary-Complementary Nature of Chinese and Modern Medicine——A Speech at Nobel Laureate Summit and Academician Forum of Medicine(2014)

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Chinese Journal of Integrative Medicine 2015年第10期21卷 723-726页

作者：陈可冀 CONG Wei-hong Xiyuan Hospital China Academy of Chinese Medical Sciences

I want to take this chance to talk about three points. First, I want to talk about the strength of Chinese medicine. Second, I will introduce some of the achievements of Chinese medicine in recent years. And third, le... 详细信息

关键词： Common Glory A Speech at Nobel Laureate Summit and Academician Forum of Medicine