地方高校专业课程思政建设存在的问题及应对策略研究

课程思政是高校以习近平新时代中国特色社会主义思想为指导,落实立德树人的根本举措.近年来,高等教育向普及化迈进,诸多问题也随之而来.课题组对吉林省地方高校进行调研,结合调研数据分析高校的专业课程思政制度建设、教师对课程思政的认识与教学能力、学生对课程思政的认同度与学习兴趣,探究高校专业课程思政建设存在的问题,并提出相应的解决策略,期望能给地方高校的专业课与思政课同向同行以启示和借鉴.     

Determining species specific nightly bat activity in sites with varying urban intensity

Time of peak bat activity during the night differs among bat species due to temperature, prey availability, habitat availability, and/or interactions between species. Habitat availability is altered in urban areas, which may affect insect prey availability and interspecies interactions. Our objectives were to use mobile acoustic monitoring to determine when bat species were active in a single night in urban and nonurban sites and if nightly bat activity patterns differed in urban versus nonurban sites. Bat echolocation call sequences were recorded using Anabat acoustic detectors while driving transects through the night at five sites (three “urban” and two “nonurban”) located in the Piedmont region of north-central North Carolina from May through August 2016. Transects were driven three times per night starting 45 min, 180 min, and 300 min after sunset. Recorded echolocation call sequences were analyzed manually using AnalookW and automatically using Bat Call Identification and Echoclass software. Total bat activity was not different between urban and nonurban sites. However, total bat activity was lower later in the night in urban sites, but stayed the same in nonurban sites. Species specifically, there were more Eptesicus fuscus, Lasionycteris noctivagans, and Tadarida brasiliensis call sequences and fewer Lasiurus borealis, Nycticeius humeralis, and Perimyotis subflavus call sequences in urban sites than nonurban sites. There were also fewer E. fuscus, L. noctivagans, and N. humeralis call sequences later in the night in both urban and nonurban sites. Only Lasiurus borealis activity in urban sites later in the night reduced and L. borealis activity in nonurban sites remained at the same. These results suggest that bats in urban areas partition time differently, which is important to consider for urban conservation efforts and planning.     

Strong convergence rates of probabilistic integrators for ordinary differential equations

Probabilistic integration of a continuous dynamical system is a way of systematically introducing discretisation error, at scales no larger than errors introduced by standard numerical discretisation, in order to enable thorough exploration of possible responses of the system to inputs. It is thus a potentially useful approach in a number of applications such as forward uncertainty quantification, inverse problems, and data assimilation. We extend the convergence analysis of probabilistic integrators for deterministic ordinary differential equations, as proposed by Conrad et al. (Stat Comput 27(4):1065–1082, 2017. https://doi.org/10.1007/s11222-016-9671-0), to establish mean-square convergence in the uniform norm on discrete- or continuous-time solutions under relaxed regularity assumptions on the driving vector fields and their induced flows. Specifically, we show that randomised high-order integrators for globally Lipschitz flows and randomised Euler integrators for dissipative vector fields with polynomially bounded local Lipschitz constants all have the same mean-square convergence rate as their deterministic counterparts, provided that the variance of the integration noise is not of higher order than the corresponding deterministic integrator. These and similar results are proven for probabilistic integrators where the random perturbations may be state-dependent, non-Gaussian, or non-centred random variables.

     

湖南省林地变更利用效益的时空特征与影响因素分析

提高林地变更利用效益能够缓解我国面临的林地利用、保护与建设用地扩张之间的矛盾,实现林地可持续利用从而促进林业可持续发展.首先计算了2014—2018年5年间的湖南省122个县市区的林地变更利用效益,利用ArcGIS对湖南省各县市区的林地变更利用效益的测算结果进行可视化呈现,分析其时空演变特征,然后采用计量经济学模型检验了湖南省林地变更利用效益的各影响因素.研究认为:1)湖南省林地变更利用效益高于全国水平,且增速呈下降趋势;2)湖南省区域之间的林地变更利用效益存在明显的差异,主要表现为大湘西地区的较低值连片集中分布和长株潭地区的较高值连片集中分布;3)每万人大学生数、每万人互联网户数、货运总量、劳均外商直接投资、公共设施用地占比、工矿仓储用地占比、对外交通用地占比与林地变更利用效益呈正相关,人口密度、居住用地占比与林地变更利用效益呈负相关,而人均财政支出、人均年末存款余额、招拍挂土地出让面积占总出让面积比及商业服务用地占比不对湖南省林地变更利用效益产生影响.     

孔隙介质中滞留聚合物分子的粘弹效应系数

本文在文献[1]的基础上做了进一步的试验研究,发现慢速降压过程流速对时间的依赖关系呈指数曲线形式,同时进行了慢速升压试验,同样发现流速与时间的指数关系。文中对文献[1]定义的附加残余效应系数提出了修改,重新定义为滞留分子粘弹效应系数,对降压过程和升压过程的粘弹效应系数进行了对比。通过岩心出口液浓度数据,证实了文中描述的粘弹效应机理和分子构象改变的物理模型的可靠性。     

乡村振兴战略背景下农村人力资源开发探析 ——以青海省民和回族土族自治县为例

在乡村振兴战略背景下,加强农村人力资源开发,对于促进农村产业高质量发展,加快农村农业现代化进程,具有重大意义.2020年4月,青海省民和回族土族自治县退出贫困县名单,通过实地调查和问卷调查分析该自治县的农村人力资源现状,找出该自治县农村人力资源开发存在的问题,并给出合理的解决问题的对策,能够推动乡村振兴战略实施.     

Parenting and children’s negative emotionality,self‐regulation,and academic skills: The moderating role of fathers’ residency

We examined whether fathers’ residency modified the associations among mothers’ supportiveness, father involvement, children’s negative emotionality during toddlerhood and children’s academic skills in pre‐kindergarten via children’s self‐regulation. Participants were 2,291 mothers (M_age = 23.24 years) and children (M_age = 14.99 months at Wave 1; 50.7% girls) in the Early Head Start Research and Evaluation Project. Results revealed distinctive associations by fathers’ residency: self‐regulation mediated the association between mothers’ supportiveness and academic skills only in resident‐father‐families. Self‐regulation mediated the association between negative emotionality and academic skills only in nonresident‐father‐families. The findings highlight the family processes of mothers, fathers, and children in low‐income family contexts that contribute to children’s academic skills, and how those family processes may vary by fathers’ residency status.     

Forecasting Australian subnational age-specific mortality rates

Journal of Population Research - When modeling sub-national mortality rates, it is important to incorporate any possible correlation among sub-populations to improve forecast accuracy. Moreover,...     

全球经济治理创新:一项基于议题调适和规则重构的分析

2016年来,美欧发达国家内部治理失范引发“逆全球化”和经济民族主义盛行,导致全球经济治理规制的“合法性”加速衰减和“有效性”不足,客观上要求推进全球经济治理创新。作为制约创新的主要变量,全球经济治理的“议题调适”和“规则重构”成为影响治理创新成败和绩效的关键因素。在新的国际经济条件下,全球系统性金融风险防控、投资自由化趋势下降及贸易保护主义回潮成为治理议题调适的主要方向,而国家间宏观经济政策协调、“边境后”贸易措施治理和各国“新工业化政策”影响下的投资政策变化成为规则重构的重点。鉴于此,中国应从统筹国内经济发展、扩大“公共物品”供给和凝聚新兴经济体利益共识的角度推进全球经济治理创新,并相应提升中国的影响力。