Evaluating the impact of spatio-temporal scale on CPUE standardization

This study focused on the quantitative evaluation of the impact of the spatio-temporal scale used in data collection and grouping on the standardization of CPUE(catch per unit effort).We used the Chinese squid-jigging fishery in the northwestern Pacific Ocean as an example to evaluate 24 scenarios at different spatio-temporal scales,with a combination of four levels of temporal scale(weekly,biweekly,monthly,and bimonthly)and six levels of spatial scale(longitude×latitude:0.5°×0.5°,0.5°×1°,0.5°×2°,1°×0.5°,1°×1°,and 1°×2°).We applied generalized additive models and generalized linear models to analyze the24 scenarios for CPUE standardization,and then the differences in the standardized CPUE among these scenarios were quantified.This study shows that combinations of different spatial and temporal scales could have different impacts on the standardization of CPUE.However,at a fine temporal scale(weekly)different spatial scales yielded similar results for standardized CPUE.The choice of spatio-temporal scale used in data collection and analysis may create added uncertainty in fisheries stock assessment and management.To identify a cost-effective spatio-temporal scale for data collection,we recommend a similar study be undertaken to facilitate the design of effective monitoring programs.

Promoting Ethical Sensitivity in Nursing Education:A Systematic Review of Case Study-Based Health Education

Introduction: Nursing ethical sensitivity refers to a nurse’s capacity for thoughtful consideration of ethical issues when faced with dilemmas. In the nursing domain, ethical dilemmas arise when nurses face challenges in making sound ethical decisions during clinical practice. These challenges may stem from conflicts between personal values and professional responsibilities. Methodology: Articles downloaded from Pub Med, CNKI, and Google Scholar were reviewed. Results: After rigorous screening, a meticulous analysis was conducted, encompassing 10 articles and involving a substantial cohort of 2863 participants. Existing literature revealed variations in the ethical dilemmas faced by nurses across different departments. The ethical sensitivity of nurses also varies, with higher ethical sensitivity correlating with stronger empathetic abilities. Zhen et al. classified the causes of ethical dilemmas into four main categories: (1) Ethical dilemmas arising from personal reasons of nursing students;(2) Ethical dilemmas stemming from the actions of teachers;(3) Ethical dilemmas triggered by patients;(4) Ethical dilemmas resulting from miscellaneous reasons. Conclusion: According to literature findings, nursing ethical sensitivity was positively linked to the nurse’s ethical decision-making ability. A case study-oriented teaching program has proven effective in enhancing ethical sensitivity among nursing students.

Adjoint Sensitivity Experiments of a Meso-β-scale Vortex in the Middle Reaches of the Yangtze River

A relatively independent and small-scale heavy rainfall event occurred to the south of a slow eastwardmoving meso-α-scale vortex. The analysis shows that a meso-β-scale system is heavily responsible for the intense precipitation. An attempt to simulate it met with some failures. In view of its small scale, short lifetime and relatively sparse observations at the initial time, an adjoint model was used to examine the sensitivity of the meso-β-scale vortex simulation with respect to initial conditions. The adjoint sensitivity indicates how small perturbations of initial model variables anywhere in the model domain can influence the central vorticity of the vortex. The largest sensitivity for both the wind and temperature perturbation is located below 700 hPa, especially at the low level. The largest sensitivity for the water vapor perturbation is located below 500 hPa, especially at the middle and low levels. The horizontal adjoint sensitivity for all variables is mainly located toward the upper reaches of the Yangtze River with respect to the simulated meso-β-scale system in Hunan and Jiangxi provinces with strong locality. The sensitivity shows that warm cyclonic perturbations in the upper reaches can have a great effect on the development of the meso-β-scale vortex. Based on adjoint sensitivity, forward sensitivity experiments were conducted to identify factors influencing the development of the meso-β-scale vortex and to explore ways of improving the prediction. A realistic prediction was achieved by using adjoint sensitivity to modify the initial conditions and implanting a warm cyclone at the initial time in the upper reaches of the river with respect to the meso-β-scale vortex, as is commonly done in tropical cyclone prediction.

Impact of the Time Scale of Model Sensitivity Response on Coupled Model Parameter Estimation

That a model has sensitivity responses to parameter uncertainties is a key concept in implementing model parameter es- timation using filtering theory and methodology. Depending on the nature of associated physics and characteristic variability of the fluid in a coupled system, the response time scales of a model to parameters can be different, from hourly to decadal. Unlike state estimation, where the update frequency is usually linked with observational frequency, the update frequency for parameter estimation must be associated with the time scale of the model sensitivity response to the parameter being esti- mated. Here, with a simple coupled model, the impact of model sensitivity response time scales on coupled model parameter estimation is studied. The model includes characteristic synoptic to decadal scales by coupling a long-term varying deep ocean with a slow-varying upper ocean forced by a chaotic atmosphere. Results show that, using the update frequency deter- mined by the model sensitivity response time scale, both the reliability and quality of parameter estimation can be improved significantly, and thus the estimated parameters make the model more consistent with the observation. These simple model results provide a guideline for when real observations are used to optimize the parameters in a coupled general circulation model for improving climate analysis and prediction initialization.

Reliability Sensitivity Analysis for Location Scale Family

Many products always operate under various complex environment conditions. To describe the dynamic influence of environment factors on their reliability, a method of reliability sensitivity analysis is proposed. In this method, the location parameter is assumed as a function of relevant environment variables while the scale parameter is assumed as an unknown positive constant. Then, the location parameter function is constructed by using the method of radial basis function. Using the varied environment test data, the log-likelihood function is transformed to a generalized linear expression by describing the indicator as Poisson variable. With the generalized linear model, the maximum likelihood estimations of the model coefficients are obtained. With the reliability model, the reliability sensitivity is obtained. An instance analysis shows that the method is feasible to analyze the dynamic variety characters of reliability along with environment factors and is straightforward for engineering application.

The Spatial Sensitivity Analysis of Evapotranspiration using Penman-Monteith Method at Grid Scale

The need to allocate the existing water in a sustainable manner, even with the projected population growth, has made to assess the consumptive use or evapotranspiration (ET), which determines the irrigation demand. As underscored in the literature, Penman-Monteith method which is a combination of aerodynamic and energy balance method is widely used and accepted as the method of estimation of ET. However, the application of Penman-Monteith relies on many climate parameters such as relative humidity, solar radiation, temperature, and wind speed. Therefore, there exists a need to determine the parameters that are most sensitive and correlated with dependent variable (i.e., ET), to strengthen the knowledge base. However, the sensitivity of ET using Penman-Monteith is oftentimes estimated using meteorological data from climate stations. Such estimation of sensitivity may vary spatially and thus there exists a need to estimate sensitivity of ET spatially. Thus, in this paper, based on One-AT-A-Time (OAT) method, a spatial sensitivity tool that can geographically encompass all the best available climate datasets to produce ET and its sensitivity at different spatial scales is developed. The spatial tool is developed as a Python toolbox in ArcGIS using Python, an open source programming language, and the ArcPy site-package of ArcGIS. The developed spatial tool is demonstrated using the meteorological data from Automated Weather Data Network in Nebraska in 2010. To summarize the outcome of the sensitivity analysis using OAT method, sensitivity indices are developed for each raster cell. The demonstration of the tool shows that, among the considered parameters, the computed ET using Penman-Monteith is highly sensitive to solar radiation followed by temperature for the state of Nebraska, as depicted by the sensitivity index. The computed sensitivity index of wind speed and the relative humidity are not that significant compared to the sensitivity index of solar radiation and temperature.

Spatio-temporal Evolution and Driving Factors of the High-quality Development of Provincial Tourism in China

Accelerating the promotion of high-quality development of tourism(HQDT) is of great significance to the sustainable development of tourism. This paper defined the concept of HQDT, and then built an evaluation system for HQDT measurement to analyze the spatio-temporal evolution characteristics of China’s HQDT based on provincial panel data from 2010 to 2019, using Geodetector to explore the similarities and differences between driving factors of HQDT and tourism development scale(TDS). The results show that:1) Taking the development concepts of innovation, coordination, green, openness and sharing as the guidance, and considering the organic unity of quantity and quality, the evaluation index system of the HQDT consists of six dimensions of economic stability, innovation driving, coordination and linkage, green and sustainability, openness and cooperation, and sharing and harmony, which respectively represent the basis, momentum, means, orientation, direction and purpose of the HQDT;2) The level of China’s HQDT shows an upward trend, presenting the characteristics of eastern region > central region > western region > northeastern region in 2019. The regional differences in China’s HQDT show a downward trend, and the intra-regional differences have replaced the inter-regional differences as the main source of regional differences;3) China’s HQDT shows the characteristics of higher in the east and lower in the west along the Hu line, while the improvement speed of HQDT shows the characteristics of faster in the west and slower in the east, making the decline of east-west differentiation of China’s HQDT and the movement of the gravity center towards southwest;4) Both HQDT and TDS are obviously driven by tourism capital investment and regional consumption. In terms of differences, the HQDT is more driven by government guidance, innovation driving force, and opening up, while the main driving factors of TDS are more biased toward capital elements and hardware facilities, including informatization, tourism resource, traffic, and eco-environment.

Spatio-temporal Variation of Soil Respiration and Its Driving Factors in Semi-arid Regions of North China

Soil respiration （SR） is the second-largest flux in ecosystem carbon cycling. Due to the large spatio-temporal variability of environmental factors, SR varied among different vegetation types, thereby impeding accurate estimation of CO2 emissions via SR. However, studies on spatio-temporal variation of SR are still scarce for semi-arid regions of North China. In this study, we conducted 12-month SR measurements in six land-use types, including two secondary forests （Populus tomentosa （PT） and Robinia pseudoacacia （RP））, three artificial plantations （Armeniaca sibirica （AS）, Punica granatum （PG） and Ziziphusjujuba （Z J）） and one natural grassland （GR）, to quantify spatio-temporal variation of SR and distinguish its controlling factors. Results indicated that SR exhibited distinct sea- sonal patterns for the six sites. Soil respiration peaked in August 2012 and bottomed in April 2013. The temporal coefficient of variation （CI0 of SR for the six sites ranged from 76.98% to 94.08%, while the spatial CV of SR ranged from 20.28% to 72.97% across the 12-month measurement. Soil temperature and soil moisture were the major controlling factors of temporal variation of SR in the six sites, while spatial variation in SR was mainly caused by the differences in soil total nitrogen （STN）, soil organic carbon （SOC）, net photosynthesis rate, and fine root biomass. Our results show that the annual average SR and Q10 （temperature sensitivity of soil respira- tion） values tended to decrease from secondary forests and grassland to plantations, indicating that the conversion of natural ecosystems to man-made ecosystems may reduce CO2 emissions and SR temperature sensitivity. Due to the high spatio-temporal variation of SR in our study area, care should be taken when converting secondary forests and grassland to plantations from the point view of accurately quantifying C02 emissions via SR at regional scales.

Analysis on sensitivity and landscape ecological spatial structure of site resources

This article establishes a set of indicators and standards for landscape ecological sensitivity analysis of site resources by using the theories and approaches of landscape ecology. It uses landscape diversity index(H), evenness(E), natural degree(N), contrast degree(C) to study spatial structure and landscape heterogeneity of site resources and thus provides a qualitative-quantitative evaluation method for land planning and management of small, medium scale areas. The analysis of Yantian District, Shenzhen of China showed that Wutong Mountain belonged to high landscape ecological sensitivity area, Sanzhoutian Reservoir and Shangping Reservoir were medium landscape sensitivity area and high ecological sensitivity area; Dameisha and Xiaomeisha belonged to medium sensitivity area caused by the decline of natural ecological areas. Shatoujiao, Yantian Pier belonged to low sensitivity area but urban landscape ecological development had reshaped and influenced their landscape ecological roles in a great extent. Suggestions on planning, protection goals and development intensity of each site or district were raised.

Research into the Assessment of the Intercultural Sensitivity Among University Students of Science and Technology

Globalization makes people from diverse cultural backgrounds communicate effectively. To be a global citizen has become the goal of our education. Landis and Bhagat （1996） argued that intercultural sensitivity is crucial to enable people to live and work with others from different cultural backgrounds. With higher intercultural sensitivity, one will be more global as his understanding of cultural difference becomes more sophisticated. In this present study, the intercultural sensitivity of different majors from a private institute of technology in the north of Taiwan was investigated, using the ISS （Intercultural Sensitivity Scale） developed by Chen and Starosta （2000）. Based on a survey of 358 participants from Nursing Department and Department of Nutrition and Health Sciences, this study focused on five dimensions of the intercultural sensitivity and the participants＇ demographic factors affecting their performance on intercultural sensitivity. The five dimensions included in this study were： （1） interaction engagement, （2） interaction confidence, （3） respect for cultural differences, （4） interaction enjoyment, and （5） interaction attentiveness. Among the five dimensions of intercultural sensitivity, the participants had the highest score on the dimension of ＂respect for the cultural differences＂ and had the lowest score on the dimension of ＂interaction confidence＂. Results generated by stepwise multiple regression indicated ＂decision of studying abroad＂ and ＂experiences of living abroad＂ could effectively predict the participants＇ intercultural sensitivity.

A Brief Review on Intercultural Sensitivity

Intercultural sensitivity,performing an indispensable role in intercultural communication,has been paid much attention recently.A person with high intercultural sensitivity can well play his part of dual or even multiple identities and can to accept new culture as well as blend himself in a new cultural environment.Therefore,it is of practical significance to carry out research related to intercultural sensitivity for further improvement in intercultural communication competence.According to Chen&Starosta(2000)[1],intercultural sensitivity consists of six aspects,self-esteem,self-monitoring,open-mindedness,empathy,interaction involvement and suspending judgment.The paper has made a brief review on previous studies of intercultural communication,aiming to offer some resources and information for the future studies on intercultural sensitivity.

基于灵敏度对比分析SCALE 6.1自带库与CENDL-TMSR-V1数据库

为满足钍基熔盐堆物理设计和钍铀燃料循环物理分析对核数据的需求,中国核数据中心研制了一套钍铀燃料循环专用数据库CENDL-TMSR-V1。本文利用SCALE程序,针对熔盐堆开展了SCALE 6.1自带数据库和CENDL-TMSR-V1库对比分析。结果显示,针对1 GWt钍增殖熔盐堆,利用两个数据库的238群数据计算的不同燃耗下k eff最大差异约1200 pcm。结合核数据对k eff的灵敏度分析显示,其差异主要由石墨的核数据不同引起的。宏观检验结果显示,CENDL-TMSR-V1库中石墨数据更合理。同时,基于CENDL-TMSR-V144群协方差数据,计算得到核数据对初始时刻k eff总不确定度为1.03%,约为SCALE 6.1自带44群协方差数据库计算结果的2倍,其差异主要由233 U、232 Th等核素的协方差数据不同导致。

基于结构保持的匿名人脸合成方法

针对目前人脸隐私保护方法难以兼顾隐私保护和数据可用性的问题,提出了一种基于结构保持的匿名人脸合成方法(Structure Preserving Anonymous Face Synthesis,SPAS)。首先,设计了SPAS网络用于合成匿名人脸图像;其次,为确保人脸身份信息的隐私安全,提出了多尺度敏感特征匿名方法;最后,利用全重构自监督方法,结合多重损失函数训练该模型。此外,通过控制非身份属性输入,使得生成的匿名结果更多样化。通过在CelebA-HQ和LFW 2个权威人脸数据集上进行实验,所提方法的FID分别为26.13和24.56,人脸检测率分别为99.60%和99.72%。实验结果表明,所提方法在降低身份泄露风险的同时,有效地提高了数据的可用性。

考虑应力敏感和多尺度流动的页岩气渗流模型

为了搞清楚页岩气储层在水力压裂后的渗流规律,针对页岩气储层水力压裂后储层表现出的应力敏感性和多尺度渗流问题,考虑Knudsen扩散、滑脱流、达西流、吸附解吸现象和应力敏感建立了页岩气复杂非线性渗流模型,利用有限差分法求解数学模型,采用网格加密和等效导流能力模拟压裂井的水力裂缝,对页岩气井产能的影响因素开展了敏感性分析。结果表明:1)应力敏感效应对压裂井产量影响很大,随着页岩气储层应力敏感系数的增大,气井产量急剧下降,当应力敏感系数从0增加到0.12 MPa^(-1)时,页岩气井产气量降低了3.2倍;2)解吸现象对页岩气的输送起到了正向作用,页岩气吸附气含量越大,气井产量越高,当朗格缪尔体积为4 c0^(3)/g时,气井平均产气速度为0.36×10^(4)0^(3)。3)随着水力裂缝长度的增加,页岩气井产量越大,当裂缝半长从20 m增加到120 m时,页岩气产量增加了2倍。以上成果认识,对加深页岩气压裂井复杂渗流规律具有指导意义。

基于融合邻域规则的双尺度拓扑优化新方法

【目的】开发一种创新的双尺度拓扑优化策略,应用于结构设计与优化研究。【方法】结合混合元胞自动机(HCA)与双向渐进法(BESO),推出HCA-BESO拓扑优化方法,其核心创新点在于采用HCA的邻域规则替代传统基于距离的加权处理机制,简化了灵敏度过滤规则,并引入了多样的邻域组合形式。【结果】通过引入HCA,该方法在双尺度优化方面显著提升了性能,减少了迭代次数,相比传统BESO算法,能够创建出刚度更高的结构。【结论】HCA-BESO方法代表了双尺度拓扑优化研究的一个重大进步,为未来的结构设计与优化研究开辟了新的路径。

Study on the Effects of Land Surface Heterogeneities in Temperature and Moisture on Annual Scale Regional Climate Simulation

The ＂combined approach＂, which is suitable to represent subgrid land surface heterogeneity in both interpatch and intra-patch variabilities, is employed in the BiOsphere/Atmosphere Transfer Scheme （BATS） as a land surface component of the regional climate model RegCM3 to consider the heterogeneities in temperature and moisture at the land surface, and then annual-scale simulations for 5 years （1988-1992） were conducted. Results showed that on the annual scale, the model＇s response to the heterogeneities is quite sensitive, and that the effect of the temperature heterogeneity （TH） is more pronounced than the moisture heterogeneity （MH）. On the intraannual scale, TH may lead to more （less） precipitation in warm （cold） seasons, and hence lead to larger intraannual variability in precipitation; the major MH effects may be lagged by about 1 month during the warm, rainy seasons, inducing -6% more precipitation for some sub-regions. Additionally, the modeled climate for the northern sub-regions shows larger sensitivities to the land surface heterogeneities than those for the southern sub-regions. Since state-of-art land surface models seldom account for surface intra-patch variabilities, this study emphasizes the importance of including this kind of variability in the land surface models.

Predictive accuracy of the Braden Q Scale in risk assessment for paediatric pressure ulcer: A meta-analysis

Aims:Paediatric pressure ulcers are a serious problem to healthcare service.Thus,effective and early identification of the risk of developing pressure ulcer is essential.The Braden Q scale is a widely used tool in the risk assessment of paediatric pressure ulcer,but its predictive power is controversial.Hence,we performed a meta-analysis to evaluate the predictive power of the Braden Q scale for pressure ulcer in hospitalised children and offer recommendations for clinical decision.Methods:Studies that evaluated the predictive power of the Braden Q scale were searched through databases in English and Chinese,including Medline,Cochrane Library,Embase,CINAHL,SinoMed,CNKI,Wangfang and VIP.The studies were screened by two independent reviewers.QUADAS-2 was used to assess the risk of bias of eligible studies.Demographic data and predictive value indices were extracted.The pooled sensitivity,specificity and receiver operating characteristics(ROC)were calculated by MetaDiSc 1.4 using random-effects models.Results:Cochran Q=26.13(P=0.0036)indicated the existence of heterogeneity;the I2 for pooled DOR was 61.7%,suggesting significant heterogeneity among the included studies.The pooled sensitivity and specificity were 0.73(95%CI:0.67-0.78)and 0.61(95%CI:0.59-0.63),respectively,yielding a combined DOR of 3.47(95%CI:2-6.01).The area under the ROC curve was 0.7078±0.0421,and the overall diagnostic accuracy(Q*)was 0.6591±0.0337.Sensitivity analysis showed the results were robust.Conclusion:The Braden Q scale has moderate predictive validity with medium sensitivity and low specificity for pressure ulcers in hospitalised children.Further development and modification of this tool for use in paediatric population are warranted.

Development and Evaluation of the Heroin Abstainers’ Cue-Sensitization Questionnaire

In order to develop the heroin abstainers＇ cue-sensitization questionnaire （HACSQ）, and evaluate its reliability and validity, during March and April in 2006, the cross-sectional sample survey and cluster sampling were adopted among 939 volunteer participants who were heroin abstainers from 5 compulsive detoxification centers in China. The data were collected by the self-report questionnaires. The reliability analysis included Cronbach＇s a coefficient, split reliability and test-retest reliability, while construction validity was analyzed in the light of exploratory and confirmatory factor analysis. Based upon the exploratory factor analysis, 4 factors were extracted, which were social emotion cue （SEC）, direct implement cue （DIC）, personnel cue （PC） and indirect implement cue （IIC） and they together explained 64.52% variance. According to the data, test-retest reliability coefficient ranged from 0.57 to 0.63, and Cronbach＇s α coefficient ranged from 0.86 to 0.95 across the 4 factors and HACSQ. The adjusted goodness of fit index was 0.75. It was suggested that the HACSQ demonstrated good validities and reliabilities, and may be used as a reliable assessment tool for the cue-sensitization among the heroin abstainers.

热敏灸治疗脾气虚弱型慢性疲劳综合征临床研究

目的:观察比较热敏灸与常规温和灸治疗脾气虚弱型慢性疲劳综合征的疗效。方法:选取2023年5—12月广州中医药大学附属广东中西医结合医院收治的70例脾气虚弱型慢性疲劳综合征患者,按随机数字表法分为治疗组(35例,脱落4例)和对照组(35例,脱落4例)。2组均给予健康宣教,治疗组在健康宣教基础上给予热敏灸治疗,对照组在健康宣教基础上给予常规温和灸治疗。2组均为2 d 1次,治疗12次(共24 d)。评价2组临床疗效,比较2组治疗前后的疲劳量表FS-14评分、慢性疲劳综合征临床症状积分总分以及各子项目评分、中医证候积分。结果:治疗组总有效率为93.55%(29/31),高于对照组74.19%(23/31)(P<0.05)。治疗后,2组疲劳量表FS-14评分、中医证候积分较治疗前降低(P<0.05),且治疗组疲劳量表FS-14评分、中医证候积分低于对照组(P<0.05)。治疗后,2组慢性疲劳综合征临床症状积分总分以及各子项目评分较治疗前降低(P<0.05),且治疗组慢性疲劳综合征临床症状积分总分及肌肉疼痛、关节疼痛、头痛、睡眠障碍、劳累后疲劳不适持续时间、疲劳评分低于对照组(P<0.05)。结论:热敏灸和常规温和灸均可以改善脾气虚弱型慢性疲劳综合征患者的临床症状,缓解脾虚情况,热敏灸疗效优于常规温和灸。

Optimal tracking control for nonlinear large-scale systems with persistent disturbances

This paper studies the optimal control with zero steady-state error problem for nonlinear large-scale systems affected by external persistent disturbances.The nonlinear large-scale system is transformed into N nonlinear subsystems with interconnect terms.Based on the internal model principle,a disturbance compensator is constructed such that the ith subsystem with external persistent disturbances is transformed into an augmented subsystem without disturbances.According to the sensitivity approach,the optimal tracking control law for the ith nonlinear subsystem can be obtained.The optimal tracking control law for the nonlinear large-scale systems can be obtained.A numerical simulation shows that the method is effective.