Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：基于大量文献的系统回顾,进行正确的Meta分析可以得出更加客观的科学证据。通常国外医学期刊会要求作者对Meta分析进行注册,并在提交论文时提供注册平台以及注册ID。而国内大多数医学期刊并无要求,导致中文Meta分析质量参差不齐。本文以预后类Meta分析为样本,分析此类文献中常见的错误,并建议国内应建立规范的Meta分析注册平台,以提高中文Meta分析的研究质量,推动循证医学的发展。
Subjects: Nursing >> Nursing submitted time 2023-06-12
Abstract： Objective To observe the effect of Evernote in improving the quality of surgical cooperation in the general hospital, to improve the quality of surgical cooperation, improve the professional comprehensive ability of surgical nurses, and promote the standardization and homogeneity of specialized operations, which is conducive to the efficient and stable operation of the operating room. Methods The specialist team wrote surgical cooperation notes on the Evernote APP, realized the real-time and efficient update and sharing of surgical notes for general practitioners. A professional knowledge base and platform was built in the operating room, covering training courses, instruments and equipment, cutting-edge information, etc. The satisfaction with surgical cooperation and professional comprehensive ability of the surgical nurses were measured before and after implementation of Evernote APP. Results After using the APP for 1 year, the satisfaction with the quality of surgical cooperation was improved (P<0.01), and the professional comprehensive ability of the surgical nurses was improved (P<0.01). Conclusion The application of the Evernote APP in the operating room can significantly improve the quality of surgical cooperation and professional comprehensive ability of surgical nurses.
Peer Review Status:
Awaiting Review
Subjects: Nursing >> Nursing submitted time 2023-06-12
Abstract： Health-related quality of life (HRQoL) is often markedly impaired in patients with peristomal irritant dermatitis. This article reviewed the etiology, nursing evaluation and intervention measures of irritant contact dermatitis in patients with enterostomy, to provide targeted and scientific basis for clinical practice of prevention and treatment of irritant dermatitis after enterostomy, reduce patients'' pain, and improve patients'' compliance and self-care ability.
Peer Review Status:Awaiting Review
Subjects: Library Science，Information Science >> Library Management submitted time 2023-04-28
Abstract： According to the former literatures, library services items divide into three categories, space facilities, information resources and librarian’s intelligences. With Structural Equation Model and ANOVA analysis, this paper tries to weight the impact of service items on student’s achievement. With 76 pedagogic students, It Shows: (I) information resources have positive effects on students' course performance and moral conduct；(II) space facilities and librarian’s intelligences had negative effect on students' course performance and moral conduct；(III) Library service items have no effect on the development of critical thinking. According those findings, this paper recommend that, (I) continuing the construction of digital libraries, especially the organization of digital resources on mobile platform; (II) modular organization of "space, resources, and intelligence", change the image of academic library as self-study room; (3) offering variable information literacy courses and aiding low- socioeconomic statue students.
Peer Review Status:Awaiting Review
Subjects: Psychology >> Social Psychology submitted time 2023-03-27 Cooperative journals: 《心理学报》
Abstract： Given the development of the economy and technology, environmental disorderliness resulting from product abundance and excessiveness has become ubiquitous and cannot be avoided. Thus, examining the effect of environmental disorderliness on consumers’ choices is of great theoretical and practical significance. A growing body of research has focused on the negative consequences of environmental disorderliness on individual choices and decision making. However, few studies have explored its potential positive outcomes. This research attempts to fill in this gap by proposing that environmental disorderliness has a positive effect on consumers’ variety-seeking behavior, which is sequentially mediated by self-efficacy threat and perceived preference uncertainty.We conducted one pilot study and four experiments to test these hypotheses. The pilot study combining a qualitative method and a quantitative method suggested a causal relationship between environmental disorderliness and self-efficacy threat. Study 1 was designed to test the main effect of environmental disorderliness on variety-seeking behavior by using a real laboratory environment and assessing real behavior. Studies 2 and 3 adopted two different approaches to test the sequential mediation effect. Specifically, Study 2 tested the mediation effect by measuring subjects’ self-efficacy threat and perceived future preference uncertainty, whereas Study 3 adopted a moderation approach to test the mediation effect by manipulating self-efficacy. Study 4 validated the results of Study 2 and ruled out the potential explanation of individual change-seeking tendency.In line with our predictions, environmental disorderliness (vs. orderliness) led to higher variety-seeking tendencies, which was sequentially driven by self-efficacy threat and perceived preference uncertainty. It occurs when a disorganized environment threatens consumers’ self-efficacy, which further increases their perceived uncertainty about future preference, and consequently bolsters their variety-seeking tendencies in the subsequent consumption choices. These effects were made robust by varying the experimental stimuli, product categories, and consumption decision scenarios. Additionally, we ruled out a possible explanation that involves sense of control, mood, and individual change-seeking tendency.Our findings contribute to the literature in several areas. First, by establishing the causal relationship between environmental disorderliness and variety-seeking behavior, this research provides a new angle to study environmental disorderliness. That is, environmental disorderliness can elicit positive effects on consumer choices. Second, this research documents self-efficacy as a possible mechanism underlying the disorderliness effect on variety seeking. Third, this research contributes to the literature of future preference uncertainty by demonstrating that it can be heightened by self-efficacy threat and subsequently affect variety-seeking behavior. Finally, the current research provides managerial implications for managers on how to match their product promotion strategies efficiently with the consumption environment both online and offline.
Subjects: Psychology >> Cognitive Psychology submitted time 2021-09-24
Abstract：在日常生活和购物环境中，混乱无序无处不在。然而，关于环境无序性对消费者产品选择行为的影响研究却十分有限，本文试图填补这一不足。具体而言，本文创新性地提出环境无序性与多样化寻求行为之间存在着因果关系，且自我效能威胁和未来偏好不确定感在其中发挥链式中介作用。通过1个预实验和4个实验，本文发现无论在真实环境、线下购物环境、工作环境，还是线上产品陈列情境下，环境无序性均可提升多样化寻求行为；无序的环境会对消费者的自我效能产生威胁，进而增强其对未来产品偏好的不确定性感知，最终促使其通过增加多样化寻求行为来应对未来可能变化的产品偏好。
Peer Review Status:Awaiting Review
Subjects: Biology >> Botany >> Applied botany submitted time 2020-03-06 Cooperative journals: 《广西植物》
Abstract：为了解杜仲基因密码子使用模式，以杜仲基因组密码子为研究对象，运用CodonW软件对杜仲的320个蛋白编码基因进行同义密码子相对使用频率（RSCU）分析、ENC-GC3S关联分析编码基因的密码子ENC值、PR2-plot偏倚分析编码基因的密码子碱基使用频率。运用CUSP软件与Codon Usage Database软件对杜仲基因密码子的GC含量、使用频率与代表性物种烟草、拟南芥、大肠杆菌和酿酒酵母的密码子GC含量和使用频率进行比较。结果表明：杜仲基因密码子的RSCU>1的密码子有30个，其中18个以G/C结尾、12个以A/U结尾；说明杜仲基因密码子偏好以G/C结尾，且偏好性较强。有效密码子数（ENC)范围为30～60，该范围内的密码子距离标准曲线较近其ENC值小，偏好性较强。PR2-plot偏倚分析碱基使用频率显示G>C、U>A。杜仲与代表性物种的GC含量分析显示杜仲的GC12、GC3以及平均GC含量均高于代表性物种；杜仲与代表性物种的密码子使用频率分析表明杜仲与烟草、酿酒酵母的密码子偏好较为接近，杜仲与拟南芥、大肠杆菌的密码子偏好差距较大。杜仲是我国特有的珍贵中药材对其进行密码子使用模式分析，研究其密码子偏好规律，为杜仲植物基因工程中外源基因的改良及表达提供理论基础。
Subjects: Biology >> Botany >> Applied botany submitted time 2019-03-14 Cooperative journals: 《广西植物》
Abstract：为研究播种季节及种植方式对多年生苦荞主要农艺性状的影响，本文选取6个多年生苦荞新品系，对春、秋季直播与秋季再生其主要农艺性状进行调查。结果表明：不同播种季节对多年生苦荞新品系的主花序的花粉可育率、总结实率、有效结实率、植株株高、主茎粗、主茎分枝数、主茎节数及籽粒百粒重、单株粒数、单株产量的影响均达到显著或极显著水平，秋播主花序花粉可育率、总结实率、有效结实率，植株主茎分枝数，籽粒百粒重、单株粒数、单株产量均极显著高于春播；植株株高、主茎粗、主茎节数均极显著低于春播，主花序花朵大小、籽粒种子长宽比无显著差异。不同种植方式对主花序花粉可育率、有效结实率，植株主茎节数及籽粒百粒重的影响达到显著或极显著水平。秋季再生主花序花粉可育率、籽粒单株粒数显著高于秋季直播，主花序有效结实率，植株主茎粗、主茎节数，籽粒百粒重显著低于秋季直播，主花序花朵大小、总结实率，植株株高、主茎分枝数，籽粒种子长宽比、单株产量无显著差异。相关分析表明，各生长季节下主花序有效结实率及单株粒数与单株产量的相关系数均是最高。所有参试品系中，1612-241秋季直播的单株产量显著高于其他品系；1612-16、1612-33秋季再生单株产量较正季优势显著。该研究结果有助于筛选出适宜一季播种两季收获的优良品系，为今后多年生苦荞的选择育种提供线索基础。
Subjects: Biology >> Bioengineering submitted time 2018-11-08 Cooperative journals: 《中国生物工程杂志》
Abstract：摘要【目的】对美洲大蠊内生粘质沙雷氏菌几丁质酶ChiA基因进行克隆、可溶性表达及功能验证。【方法】PCR扩增ChiA基因，TA亚克隆，构建重组表达载体ChiA/pET21b，生物信息学分析和低温诱导表达、SDS-PAGE、Western-Blot鉴定，打孔法对几丁质酶活性检测。【结果】PCR成功扩增了ChiA基因序列，该序列与Gen Bank上的S．marcescens ChiA基因序列同源性达99%；该序列编码571个氨基酸，并能够在原核系统中稳定表达。可溶性表达分析显示：通过低温诱导表达，获得可溶性的目的蛋白；活性试验发现:含目的蛋白的表达产物可分解几丁质，且活性强于美洲大蠊内生粘质沙雷氏菌。【结论】从美洲大蠊内生粘质沙雷氏菌基因组中成功克隆了几丁质酶ChiA基因，通过原核表达系统获得了具有较强活性的可溶性几丁质酶ChiA，为其应用奠定了基础。
Subjects: Psychology >> Other Disciplines of Psychology submitted time 2018-10-26 Cooperative journals: 《心理学报》
Abstract：汉字的多音字数量众多, 种类复杂, 为维吾尔族学生学习汉语带来了困难。通过两个实验, 考察正字法深度对汉族大学生和维吾尔族大学生的汉字词命名的影响。结果表明, 无论是命名单字词还是命名双字词, 维吾尔族学生的反应时均比汉族学生显著长。对单字词, 两个民族被试的命名时间均受汉字的正字法深度和词频影响, 被试命名多音字的时间显著长于命名单音字, 命名低频字的时间显著长于命名高频字。对双字词, 两个民族被试的命名时间存在着词频与正字法深度的交互作用：对高频词, 汉族学生对由多音字组成的词与由单音字组成的词的反应时差异不显著, 维吾尔族学生对由多音字组成的词的反应时显著长于对由单音字组成的词; 对低频词, 汉族学生对由多音字组成的词的反应时显著长于对由单音字组成的词, 维吾尔族学生对由多音字组成的词与由单音字组成的词的反应时差异不显著。整个研究表明, 正字法深度对两个民族大学生的汉字词命名的影响具有不同模式。所以如此, 与两个民族的母语特点、词汇获得年龄、语言熟练程度和语言加工方式不同有关。
Subjects: Environmental Sciences, Resource Sciences >> Other Disciplines of Environmental Sciences, Resource Sciences submitted time 2018-09-03 Cooperative journals: 《干旱区研究》
Abstract：拟通过对盐穗木2月龄幼苗和6月龄成苗在不同NaCl浓度（0、100、300 mmol·L-1和 500 mmol·L-1）处理15 d后的相对含水量、脂质过氧化物（MDA）、无机（Na+、K+和Ca2+）和有机渗透调节物质（脯氨酸和甜菜碱）及抗氧化指标（SOD、CAT、APX、POD、AsA和GSH）的检测，分析并比较盐穗木不同发育阶段应对不同盐浓度的渗透调节和抗氧化防御系统，为盐穗木的研究与开发利用以及新疆生态环境的治理提供依据。结果表明：500 mmol·L-1高盐胁迫下，盐穗木幼苗和成苗相对含水量与对照组相比均显著下降；结合相对含水量和MDA含量显示，100 mmol·L-1和300 mmol·L-1 NaCl均未对盐穗木造成胁迫；渗透调节系统中，无机离子Na+和有机物质甜菜碱（GB）分别在盐穗木幼苗和成苗的渗透调节中发挥主导作用；抗氧化系统中，除盐穗木成苗在500 mmol·L-1处理下抗坏血酸（AsA）含量升高外，超氧化物歧化酶（SOD）和CAT活性及谷胱甘肽（GSH）含量随盐浓度的增加一直保持较高水平且变化很小；相关系数分析显示AsA和SOD分别在盐穗木幼苗和成苗中发挥了重要的抗氧化作用。由此可见，新疆牧草盐穗木在苗期的不同生长阶段采用不同的渗透调节和抗氧化策略应对盐渍生境。
Subjects: Computer Science >> Integration Theory of Computer Science submitted time 2018-07-23 Cooperative journals: 《计算机应用研究》
Abstract： In large scale cloud storage system, storage nodes fail frequently because of disk/link failures. In order to preserve data’s reliability and availability, storage systems need to store redundant data. Compared with data-replication, erasure code can provide significant savings in storage space at the cost of extra data recovery overhead. Most of the data recovery mechanisms for erasure codes think that there is no difference among storage nodes. In the actual distributed storage systems, however, there are some heterogeneities in the bandwidth, computing resources and storage capacity of the storage nodes, which have a great influence on the redundant data recovery performance. This paper presents data repair operation process in erasure code technology under heterogeneous environment, and identifies the key factors that affect the recovery performance. Thereafter, this paper chooses bandwidth cost, disk access overhead, repair time, the number of nodes participating in the repair and repair cost as the evaluation criterion for the recovery performance. In addition, this paper analyzes how to reduce these five costs by the existing research methods, and focuses on the advantages and disadvantages of these methods. Finally, this paper indicates Some unsolved problems in the research of erasure code repair method in the current heterogeneous storage systems and the possible development direction of the future erasure code repair method.
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