The article synthesizes and presents the results regarding the stability of positive homogeneous systems that have been researched and published in recent years. Next, we provide a sufficient condition for global exponential stability in the case of discrete-time positive homogeneous systems with an order less than one with time-varying delays.
This paper reviews the research on second language acquisition from the perspective of positive psychology.First,it introduces the background and purpose of the study and discusses the significance of the application of positive psychology in the field of language acquisition.Then,the basic theories of positive psychology,including the core concepts and principles of positive psychology,are summarized.Subsequently,the theory of second language acquisition is defined and outlined,including the definition,characteristics,and related developmental theories of second language acquisition.On this basis,the study of second language acquisition from the perspective of positive psychology is discussed in detail.By combing and synthesizing the literature,this paper summarizes the current situation and trend of second language acquisition research under the perspective of positive psychology and puts forward some future research directions and suggestions.
Context: Antiretroviral therapy (ART) helps restore the health status of people living with HIV (PLHIV). Likewise, it increases the risk of overweight/obesity and related comorbidities among the recipients. In countries like Botswana where ±84% of PLHIV is on ART, the paucity of data comparing overweight/obesity between HIV-positive on ART and HIV-negative patients may impede clinical and policy decision-making. This study sought to estimate and compare: i) the prevalence of overweight/obesity between HIV-positive on ART and HIV-negative patients;ii) the prevalence of hypertension (HTN), diabetes mellitus (DM)/coronary heart disease (CHD) between HIV-positive patients on ART and HIV-negative patients attending same outpatient departments of general clinics in Gaborone, Botswana. Patients and Methods: Five hundred eighty-one (581) outpatients were recruited in four major clinics of Gaborone, Botswana, between June and July 2019;294 or 51% of them were HIV-negative and 287 or 49% were HIV-positive on ART. The prevalence of overweight/obesity and of HTN and DM/CHD were calculated and examined using stratified analysis. Subgroups were compared using Chi-square analysis with Yates correction or Fisher exact test and t-student test for continuous data. Results: Major findings after stratification of the study population by HIV status were: i) the prevalence of all categories of (BMI), including overweight/obesity, were comparable between HIV-negative-patients and HIV-positive. In fact, there were 24 (8.0%) cases of underweight among HIV-negative-Patients and 15(5%) cases among HIV-positive patients, p = 0.2;145 (49%) HIV-negative-patients and 128 (45%) HIV-positive, p = 0.07 cases of normal weight;72 (25%) HIV-negative-patients and 87 (30%) HIV-positive, p = 0.08, were overweight;53 (18%) HIV-negative-patients and 57 (20%) HIV-positive, p = 0.12, were obese;125 (43%) HIV-negative patients and 144 (50%) HIV-positive, p=0.06 were overweight/obese;ii) the prevalence of HTN and DM/CHD among HIV-positive-patients were sign
目的了解护理本科生生命意义感现状,分析积极情绪在积极反刍与生命意义感之间的中介作用,为提高护生生命意义感提供科学依据。方法2022年6-8月,利用方便抽样法选取北京市314名在校护理专业本科生为调查对象,采用生命意义感问卷中文修订版(meaning in life questionnaire-Chinese version,MLQ-C)、大学生反刍思维量表、正负性情绪量表(positive and negative affect schedule,PANAS)进行问卷调查,并对数据进行分析。结果护理本科生生命意义感总分为(50.88±8.71)分,其中寻求意义感维度得分为(27.04±5.25)分,拥有意义感维度得分为(23.83±5.46)分。积极反刍、积极情绪与生命意义感均呈正相关(r=0.442、0.496,均P<0.01)。积极反刍与积极情绪间呈正相关(r=0.619,P<0.01)。中介作用检验结果显示,积极情绪在护理本科生生命意义感与积极反刍之间存在部分中介作用,中介效应占总效应的63.02%。结论护理本科生生命意义感水平处于中上等,积极反刍可直接影响护生生命意义感,也可通过积极情绪间接影响护生生命意义感。护理教育者可通过培养护生积极反刍的认知方式,提高护生积极情绪,以提升生命意义感水平。