Subjects: Geosciences >> Geography submitted time 2024-07-11 Cooperative journals: 《干旱区地理》
Abstract：在全球变暖的影响下，全球水文气候发生深刻变化，而季风与非季风过渡带地区气候复杂多样，所以摸清该地区过去长期气候变化规律是亟待解决的问题。利用36 棵青海云杉（Picea crassifolia）的66个树轮样芯建立了季风与非季风过渡带典型地区（中国贺兰山地区）1798—2016年（219 a）的青海云杉树轮宽度年表，并且通过皮尔逊相关法分析了树轮宽度年表与该地气候因子的相关性。结果表明：（1）青海云杉径向生长与该地的年平均最低温（R2=0.638，P<0.001）关系密切，利用线性回归方程重建贺兰山1815—2016年年平均最低温序列，重建方程的缩减误差和有效系数分别为0.808、0.482。（2）重建的年平均最低温序列在19世纪整体气温偏低，与学术界公认的“小冰期”一致，到19世纪后期，气温逐渐回升，并且气温序列出现了显著的暖期和极暖年，气温在19世纪50和90年代以及20世纪90年代发生3次气温突变。（3）Morlet小波分析显示了6 a、21 a和46~56 a的周期性分布特征。南方涛动、太平洋十年涛动和大西洋多年代际涛动是这种周期性变化的驱动因素。（4）大尺度空间相关分析表明重建的气温序列对大尺度区域的气温变化具有较好的空间表征，如内蒙古大部和宁夏大部。进而重建的季风与非季风过渡带典型地区年平均最低气温序列揭示了该地的气候变化特征，为全球气候变化研究提供参考。
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2023-09-22 Cooperative journals: 《中国全科医学》
Abstract： Non-alcoholic fatty liver disease（NAFLD）is currently the most common chronic liver disease worldwide，its close correlation with metabolic disorders has been demonstrated in numerous studies in recent years and an expert panel has proposed renaming it metabolic-associated fatty liver disease（MAFLD）. NAFLD/MAFLD may not only increase the incidence and mortality of liver-related diseases but also relate to the incidence and mortality of cardiovascular diseases. This article compares the diagnostic criteria of NAFLD/MAFLD and reviews the research progress in the correlation of non-alcoholic fatty liver disease and metabolic-associated fatty liver disease with cardiovascular diseases. The results show that both NAFLD/ MAFLD are significantly associated with the increased incidence of cardiovascular diseases and independent risk factors for cardiovascular diseases. Furthermore，MAFLD patients have a higher risk of developing cardiovascular diseases than NAFLD patients. This article provides clinical physicians with the basis for cardiovascular risk assessment and management in NAFLD/MAFLD patients，emphasizing that in addition to the treatment of liver disease，clinical physicians should also focus on the risk of cardiovascular disease in NAFLD/MAFLD patients.
Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： Work-related rumination (WRR) refers to conscious, recurring work-related thoughts that occur without being asked to do so. WRR is divided into two dimensions: work-related affective rumination and work-related problem-solving pondering. The influence of WRR on individual health, work and happiness is a double-edged sword. Perseverative cognition theory, cognitive activation theory of stress and cognitive resource perspective theory provide explanations for the internal mechanism of positive and negative effects of WRR. Researchers should analyze boundary conditions affecting the double-edged sword effect, seek the route of reducing its negative effects and increasing the positive effect, in the future. Besides, researchers should also expand the analytical perspective of psychological mechanism of the double-edged sword effect, as well as the functional level of the effect.
Subjects: Psychology >> Social Psychology submitted time 2023-03-27 Cooperative journals: 《心理学报》
Abstract： Emotion regulation plays an important role in maintaining mental balance. Automatic emotion regulation is an important aspect of emotion regulation. Previous studies has found that automatic emotion regulation can influence emotional attention bias, and the activation of the left orbitofrontal cortex (OFC) was related to attention allocation to negative emotional stimuli. Although previous studies have provided evidence to the involvement of left OFC in the mechanism of automatic emotion regulation's influence on attention, little studies provided evidences for this hypothesis by manipulating the activation of left OFC. In order to examine the role of left OFC in attention allocation under automatic emotion regulation, the present study manipulates the cortical excitability by using transcranial direct current stimulation (tDCS). We hypothesized that under the cathodal stimulation codition, the effect of subliminal emotional control words on attention avoidance of fear stimulation was diminished. Thirty-nine healthy right-handed college students participated in this study. Each participant was settled into cathodal and sham tDCS sessions in random order. After entering the laboratory, the participants completed a state-trait anxiety questionnaire. Then they completed the pre-task, in which emotional control goal was subliminally presented in the beginning of each trial. And fear related dot probe task was adopted in the pre-task. After the task was completed, the participants received tDCS stimulation. A relatively weak current (±1.5 mA) was constantly delivered over the left OFC for 20 min. For the sham tDCS, the stimulation only lasted for 15 sec. After stimulation participants immediately completed the post-task, in which the same task with the pre-task was used. The present study analyzed accuracy and reaction time by a 2 (pre-tesk and post-task) × 2 (tDCS: cathodal, sham)×2 (left-right location consistency of snake picture and target) repeated measures ANOVA. The results showed that the main effect of location consistency was significant (F(1, 37) = 5.11, p < 0.05, ηp2 = 0.12), and the reaction time under the consistent condition was significantly greater than that under the inconsistent condition. The interaction between the location consistency and stimulus conditions was significant, F(1, 37) = 9.78, p < 0.01, ηp 2 = 0.21. The simple effect analysis revealed that under the condition of sham stimulation, the reaction time under the consistent condition was greater than that under the inconsistent condition (ps < 0.05). For the cathodal stimulation, there was no significant difference between the reaction time under the consistent condition and the inconsistent condition (p > 0.05). The interaction between the consistency of pre- and post-task, stimulation condition and location consistency was significant, F(1, 37) = 11.41, p < 0.01, ηp2 = 0.24. Simple effect analysis showed that under the condition of sham stimulus, the response time under the consistent condition was greater than that under the inconsistent condition (ps < 0.05). Under the cathodal stimulation condition, the response time under the consistent condition was greater than that under the inconsistent condition (p < 0.05), while the response time under the consistent condition was significantly less than that under the inconsistent condition (p < 0.05). The present study examined the role of left OFC in attention allocation under automatic emotion regulation using subliminal goal priming and dot-probe task. Our findings revealed that after cathodal stimulation, attention avoidance of fear stimuli induced by subliminal control goal priming would be diminished, suggesting that the activation of left OFC influenced emotional attention allocation in automatic emotion regulation.
Subjects: Agriculture, Forestry,Livestock & Aquatic Products Science >> Other Disciplines of Agriculture, Forestry,Livestock & Aquatic Products Science submitted time 2023-02-17 Cooperative journals: 《智慧农业（中英文）》
Abstract： Plant income insurance has become an important part of agricultural insurance in China. It has been recommended to pilot since 2016 by Chinese government in several counties, and is now (2022) required to be implemented in all major grain producing counties in the 13 major grain producing provinces. The measurement of yield for plant income insurance in such huge volume urgently needs the support of remote sensing technology. Therefore, the development history and application status of remote sensing technology in the whole agricultural insurance industry was reviewed to help understanding the whole context circumstances of plant income insurance firstly. Then, the application scenarios of remote sensing technology were analyzed, and the key remote sensing technologies involved were introduced. The technologies involved include crop field plot extraction, crop classification, crop disaster estimation, and crop yield estimation. Research progress of these technologies were reviewed and summarized ,and the satellite data sources that most commonly used in plant income insurance were summarized as well. It was found that to obtain a better support for a development of plant income insurance as well as all crop insurance from remote sensing communities, issues existed not only in the involved remote sensing technologies, but also in the remote sensing industry as well as the insurance industry. The most two important technical problems in the current application scenario of planting income insurance are that: the plot extraction and crop classification are not automated enough; the yield estimation mechanism is not strong, and the accuracy is not high. At the industry level, the first issue is the limitation of the remote sensing technology itself in that the remote sensing is not almighty, suffering from limited data source, either from satellite or from other platform, laborious data preprocessing, and pricey data fees for most of the data, and the second is the compatibility between the current business of the insurance industry and the combination of remote sensing. In this regard, this paper proposed in total five specific suggestions, which are: 1st, to establish a data distribution platform to solve the problems of difficult data acquisition and processing and standardization of initial data; 2nd, to improve the sample database to promote the automation of plot extraction and crop classification; 3rd, to achieve faster, more accurate and more scientific yields through multidisciplinary research; 4th, to standardize remote sensing technology application in agricultural insurance, and 5th, to write remote sensing applications in crop insurance contract. With these improvements, the application mode of plant income insurance and probably the whole agriculture insurance would run in a way with easily available data, more automated and intelligent technology, standards to follow, and contract endorsements.
Subjects: Nursing >> Nursing submitted time 2022-08-17
Abstract： Enhancement of perioperative nursing plays an important role in helping the recovery of elderly patients undergoing surgery for lung cancer. This paper summarized the application of enhanced recovery after surgery (ERAS) in perioperative nursing of elderly patients undergoing surgery for lung cancer, and provided reference for quality improvement of clincal practice.
Peer Review Status:
Awaiting Review
Subjects: Psychology >> Management Psychology submitted time 2019-09-25
Abstract： Work-related rumination (WRR) refers to conscious, recurring work-related thoughts that occur without being asked to do so. WRR is divided into two dimensions: work-related emotional rumination and work-related problem-solving pondering. The influence of WRR on individual health, work and happiness is a double-edged sword. Perseverative cognition theory, cognitive activation theory of stress and cognitive resource perspective theory provide explanations for the internal mechanism of positive and negative effects of WRR. Researchers should analyze boundary conditions affecting the double-edged sword effect, seek the route of reducing its negative effects and increasing the positive effect, in the future. Besides, researchers should also expand the analytical perspective of psychological mechanism of the double-edged sword effect, as well as the functional level of the effect. "
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-05-20 Cooperative journals: 《计算机应用研究》
Abstract： Multi-label learning has been widely used in many application scenarios right now. In this kind of learning problem, each instance is simultaneously assigned with more than one class label. Since different class labels might have their own unique characteristics (i. e. , label-specific feature) which would be more useful for label classification, so some multi-label learning approaches based on label-specific features had already been proposed. Therefore, aiming at the problem that redundant feature space caused by label-specific feature construction, a multi-label label-specific feature extraction algorithm named LIFT_RSM is proposed, which can improve the performance of classification by comprehensively using random subspace method and the thought of pair-wise constraint dimensionality reduction to extract effective feature information in label-specific feature space. The experimental results on several datasets show that the proposed algorithm can achieve better classification results compared with several classical multi-label algorithms.
Subjects: Biology >> Ecology submitted time 2017-11-29 Cooperative journals: 《中国生态农业学报》
Abstract： Soil microbes have significant influences on transformation and fate of nitrogen in soils by participating in the processes of biology and biochemistry in soil nitrogen cycle. Research has shown that herbicides may inhibit non-target soil microbes and their biochemical processes. Therefore, herbicides produced great effectives on the uptake and utilization by plant and environmental release of nitrogen from soils. This experiment aimed to explore the effects of herbicide on transformation of urea nitrogen and greenhouse gas emissions in different planting year’s orchard soil, it is helpful to evaluate the environmental safety of herbicide and nitrogen application in orchard soil. An two factors three levels Complete experiment (Herbicide factors include no herbicides, glyphosate (10 mg·kg-1 a.i.)and butachlor(10 mg·kg-1 a.i.), planting year factors include 0 years (woodland), 10 years and 30years citrus orchard ) was conducted under laboratory condition, and 200 mg(N)·kg-1 dry soil urea were applied in each treatments respectively. The result showed that the Urea hydrolysis rate, nitrification rates, denitrification loss and green house gas emission of citrus orchard (10 and 30 years) were higher than the woodland (P < 0.05). Compare with woodland soil, the total denitrification loss increased by 5.12 and 4.30 times; the total N2O emission increased by 7.80 and 2.74 times; the total CO2 emission increased by 19.62% and 39.64%, respectively. The Urea hydrolysis rate, nitrification rates and CO2 emission in 30 years citrus orchard were significantly greater than the 10 years. Compare with 10 years citrus orchard soil, the total CO2 emission in 30 years increased by 16.74%, but the total denitrification loss were no difference between 2 citrus orchard soils. Glyphosate and butachlor had significant boost the urea hydrolysis in woodland, but had no effect on soil nitrification in 3 soils. The butachlor had significant negative effect on woodland CO2 emission, but show no effect on citrus orchard soil. Compare with no herbicide treatment, the butachlor had significant boost the N2O emission 56.27% and 85.41% respectively (P < 0.05), in 2 citrus orchard soil. The glyphosate no effect on soil total CO2 and N2O emission in 3 soil. The glyphosate had no significant effects on nitrogen transformation and greenhouse gas emission in citrus orchard soil, but butachlor had significant boost the N2O emission in citrus orchard soil.
Subjects: Biology >> Ecology submitted time 2017-11-29 Cooperative journals: 《中国生态农业学报》
Abstract： The study is to explore the optimal management of winter watering to develop strong seedling before winter, and improve the wheat growth, thus increase the grain water use efficiency and result in higher yield of wheat, sowing under the conditions of threshed corn straw back to the field by the rotary machine. To study the winter watering time effect, four watering time treatments were designed. They were November 10, November 25, December 10 (traditional watering time used as a control) and December 25. Comparing with the non-winter watering wheat, winter watering compacted the soil, and adjusted the bulky soil density. It also help the root closely touched to the soil, and enhance the enzyme activity, thus enrich the soil nutrition level and improve the tillering and secondary root growth. It is interesting to note that early winter watering could compensate the winter wheat growth when it was compared with the control treatment. It can stimulate the stem numbers before winter, secondary root number, and increased the root dry weight per plant. Under early winter watering condition, the lifespan of flag leave was extended, and the chlorophyll contents increased, and the photosynthesis was also improved. All these result in final head number increased by 5.37% to 1.66%, while the weight thousand kernel by 3.03%-0.55%.It was found that under the November 25 treatment, the yield increase by 8.40% and water use efficiency by 5.76% to 22.05kg穖m-1穐m-2. At this stage the seedling was just at the early tiler stage when the seedling plant has 3 leaves.
Subjects: Biology >> Zoology submitted time 2017-10-10 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在研究亚麻籽油对脂多糖（LPS）刺激仔猪肝脏Toll样受体4（TLR4）和核苷酸结合寡聚化结构域（NOD）信号通路关键基因表达的影响。选取24头断奶仔猪，按体重相近原则随机分为4个组，分别为对照组、LPS组、2.5%亚麻籽油组（2.5%亚麻籽油+LPS）、5.0%亚麻籽油组（5.0%亚麻籽油+LPS），每组6个重复，每个重复1头猪，试验期21 d。试验组注射100 μg/kg体重的LPS，对照组注射等量的生理盐水。注射LPS或生理盐水4 h后屠宰仔猪，取肝脏，测定TLR4和NOD信号通路关键基因及相关炎性介质的mRNA表达水平。结果表明：1）LPS刺激显著提高了肝脏肿瘤坏死因子-α（TNF-α）、环氧酶2（COX2）、热休克蛋白70（HSP70）的mRNA相对表达量（P<0.05），2.5%亚麻籽油可显著降低COX2、TNF-α的mRNA相对表达量（P<0.05），5.0%亚麻籽油可显著降低TNF-α的mRNA相对表达量（P<0.05）。2）LPS刺激显著提高了肝脏TLR4、髓样分化因子88（MyD88）、白细胞介素-1受体相关激酶1（IRAK1）、NOD1、NOD2、受体互作蛋白2（RIPK2）、核因子-κB（NF-κB）的mRNA相对表达量（P<0.05）；2.5%亚麻籽油可显著降低NOD1、NOD2的mRNA相对表达量（P<0.05），有降低RIPK2 mRNA相对表达量的趋势（P<0.10）；5.0%亚麻籽油可显著降低NOD2的mRNA相对表达量（P<0.05）。这表明LPS刺激导致仔猪发生炎症反应，亚麻籽油可能通过抑制NOD信号通路进而缓解肝脏炎症反应。
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