Subjects: Digital Publishing >> Internet Journals submitted time 2024-01-31
Abstract： Purposes In the context of media integration, a feasible media integration communication strategy for scientific and technological journals has been summarized, with the aim of enabling scientific and technological journals to face academic users with a more proactive attitude, more diverse and close to user needs, and more diverse communication forms and channels, thereby improving the integrated media communication ability of scientific and technological journals. Methods Based on the concept of meeting the academic needs of users, this paper analyzes the challenges and opportunities faced by the integrated media communication of science and technology journals, and conducts research on the specific content and effectiveness of The Chinese Journal of Nonferrous Metals in the integrated media communication practice case. Findings A highly universal dissemination strategy for scientific and technological journals has been proposed from four dimensions: service, platform, content and efficiency of dissemination. Conclusions Enhancing service awareness, building communication platform, optimizing communication content and improving communication efficiency are important means to enhance the communication capacity and academic services of scientific and technological journals. They can expand the influence of scientific and technological journals and achieve high-quality dissemination.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2023-11-23 Cooperative journals: 《中国全科医学》
Abstract： Background Due to economic development changes in domestic fertility policy，the incidence of acute pancreatitis in pregnancy（APIP） has been gradually increasing. The clinical characteristics of APIP of different etiologies are different，and there may be significant differences in the prognosis for mothers and infants，but previous studies on this are relatively few. Objective To analyze the clinical characteristics and maternal and neonatal outcomes in pregnancy complicated with acute pancreatitis patients of different etiologies. Methods A total of 48 inpatients with APIP in Beijing Friendship Hospital affiliated to Capital Medical University from 2016 to 2022 were collected，which were divided into the biliary group（n=27）and hyperlipidemic group（n=21）. The laboratory indicators and maternal and infant outcomes in the two groups were compared. Results The biliary group had a longer time of onset to visit，a smaller gestational week at admission，more previous pregnancies，and lower percentage of diarrhea and cessation of defecation than the hyperlipidemic group（P<0.05）.There was no statistically significant difference in severity between the two groups of patients（P=0.912）. The levels of hemoglobin，platelets，C-reactive protein，cholesterol，and triacylglycerol in the biliary group were lower than those in the hyperlipidemia group，while the levels of total bilirubin，direct bilirubin，alanine transaminase，alkaline phosphatase，glutamyltranspeptidase，creatinine，calcium，sodium，amylase，and N-terminal brain natriuretic peptide precursor were higher than those in the hyperlipidemia group（P<0.05）. The gestational week at delivery of the biliary group was shorter than the hyperlipidemia group（P<0.05）. There was no statistically significant difference in premature delivery rate，cesarean section rate，and artificial intervention termination of pregnancy rate between the biliary group and hyperlipidemia group（P>0.05）. The birth weight of the biliary group was smaller than the hyperlipidemia group，while the birth length was shorter than the hyperlipidemia group. The incidence of neonatal jaundice，respiratory distress，and ventilator-assisted breathing was higher than the hyperlipidemia group（P<0.05）. Conclusion Biliary diseases are still the first cause of APIP patients，which can significantly shorten the maternal gestational week，cause low fetal body mass，increase the incidence of pathological jaundice，respiratory distress，and ventilator-assisted breathing in the fetus，leading to a more severe prognosis for the fetus.
Subjects: Medicine, Pharmacy >> Clinical Medicine submitted time 2023-11-16 Cooperative journals: 《中国全科医学》
Abstract： Background The current classification of cesarean scar pregnancy （CSP） is only based on the ultrasonic characteristics. At present，there is a lack of analysis and summarization of the clinical characteristics of different types of CSP cases under this classification criteria. Objective To investigate the clinical characteristics and management variance of different types of CSP. Methods A total of 862 patients with CSP admitted to the Department of Obstetrics and Gynecology，Peking University Third Hospital from July 2014 to June 2022 were enrolled and divided into the type Ⅰ，type Ⅱ and type Ⅲ groups. The clinical characteristics and indicators of diagnosis and treatment were analyzed retrospectively. Results Among the total CSP patients，36.5%（315/862） were type I，53.1% （458/862） were type II，and 10.3%（89/862）were type III. The incidence of abdominal pain was 24.2%（209/862） and vaginal bleeding was 65.0%（560/862） in CSP patients. There was no significant difference in abdominal pain（P=0.261） and vaginal bleeding（P=0.062） among the three groups. In type Ⅲ patients，the average gestational age was 55（46，63.75） days，the average diameter of gestational mass was 29.6（19.1，43.3）mm，and the serum β-HCG level was 60 673（17 164，122 203） mU/mL at diagnosis. The proportion of patients who needed adjuvant pharmacologic embryocidal therapy，laparoscopic surgery and uterine artery occlusion was 27%（24/89），33.7%（30/89） and 32.6%（29/89），respectively. The operation duration was 101（67，125） min，the hospitalization duration was 4（3，6.75） days，and the treatment cost was 11 933.7（8 760.7，15 250.6） CNY for type Ⅲ patients. The accumulated bleeding volume within 24 hours after surgery，the proportion of patients with perioperative bleeding ≥ 200 mL and requiring blood transfusion was 24.7%（22/89） and 7.9% （7/89） in type Ⅲ patients，respectively，which were higher than the other two groups（P<0.001）. The incidence of persistent CSP was 3.1%（27/862） in all patients，and there was no significant difference among the three groups（χ2 =3.353，P=0.187）. Conclusion There is no significant difference in age，maternal history，gravidity and parity，and clinical characteristics such as abdominal pain and vaginal bleeding in patients with different types of CSP. The treatment of type Ⅰ and type Ⅱ patients is less invasive and consumes less medical resources，while type Ⅲ patients consume more medical resources and have high requirements for multidisciplinary team and individualized management. The prognosis of all three types of patients is ideal after standardized management.
Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：本文以《木材工业》杂志为例，基于中国知网数据库，系统分析了该刊2006—2020年间刊载的104篇高被引学术论文的被引频次、下载次数、主要作者、合作程度、发文机构、文献类型、关键词，以及下载频次与被引频次的相关性等主要特征，并探讨了高被引论文分析结果在期刊运营中的应用模式，以期为期刊选题策划提供参考，提升期刊学术影响力。
Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：近几年,中国网络视频行业呈快速发展趋势,而短视频的发展最为迅猛,以抖音短视频为代表的短视频应用相继走出海外,在文化输出、国家形象自塑方面贡献了重要的传播力量,逐渐成为对外传播的重要媒介渠道。本文以抖音短视频为例,通过对短视频传播特点以及抖音短视频海外传播现状的分析,阐明抖音短视频在走向海外的过程中对国家形象塑造的影响及作用,并提出抖音短视频在未来国家形象自塑方面的发展建议。
Subjects: Biology >> Botany submitted time 2023-08-26 Cooperative journals: 《干旱区研究》
Abstract： We found four new records of Amaranthus exotic weeds in Altay, Ili, Changji, Tacheng, and Hamiduring a field survey of weeds in northern and eastern Xinjiang. We recorded three species and one variety,respectively, of Amaranthus hybridus L., Amaranthus powelli S. Watson, Amaranthus viridis L., and Amaranthusretroflexus L. var. delilei (Richter & Loret) Thell that have not yet been found in this region. There are smallpopulations of A. hybridus L. in Xinyuan, Yili, Urumqi, and Hami. A. viridis L. is only found in multiplepopulations in the Wusu Chepaizi reclamation area. A. retroflexus L. var. delilei (Richter & Loret) Thell. is onlydistributed in a small portion of Shihezi City. A. powellii S. Watson is only found in Balikun County, Hami City.The discovery of these newly recorded plants is of great significance to the study of the flora and speciesdiversity of Amaranthus in Xinjiang, and also provides an important basis and new data for the study of theirgeographical distribution and of the spread and effective detection of invasive weeds. Specimens from therecorded species are kept in the Herbarium of Shihezi University.
Subjects: Library Science，Information Science >> Library Science submitted time 2023-07-26 Cooperative journals: 《图书情报工作》
Abstract： [Purpose/significance] The utilization of university libraries and its impact on student learning outcomes is an important part of library outcomes assessment.It is significant that how universities improve the library support for students' learning activities, and how students improve their ability to use the library.[Method/process] Based on the 2017 Capital College Student Experience Survey, this study adopted T test, one-way analysis of variance, correlation analysis and regression analysis to analyze the current situation of university library utilization and its impact on students' learning outcomes.[Result/conclusion] The results show that different students' groups have different degrees of utilization of library. Library utilization is significantly positively correlated with students' academic performance, school satisfaction and learning gains, and various indicators of library utilization affect different learning outcomes. Based on this, it is suggested that universities should strengthen the guidance to the student groups with poor utilization of libraries, such as freshmen and sophomores and rural students. And then improve the construction of resources such as library learning space, professional librarian team and students' information literacy education. College students themselves should improve the use of library resources.
Subjects: Management Science >> Science ology and Management submitted time 2023-07-09 Cooperative journals: 《中国科学院院刊》
Abstract： Energy is the blood vessel of an economy. The outbreak of the Ukraine crisis has triggered a regional energy supply crisis and a global energy market turmoil. As a result, the global energy landscape and energy science and technology development trends have undergone profound changes, with far-reaching impact on China’s science and technology strategies in the energy sector. Based on the study of energy strategy shift of the world’s major economies, this study focuses on research and analysis on the strategic trends of energy science and technology from the perspectives of international energy trade, global low-carbon transition and national energy security. This study believes that: (1) localization of energy supply has become a development direction of global energy science and technology strategies; (2) the cost attribute of energy technology is increasingly prominent in the era of clean energy; (3) the world is accelerating its pace in research and development of clean energy technology; and (4) international science and technology cooperation in the field of clean energy is facing new challenges. In addition, this study also proposes policy recommendations from the perspectives of strategic deployment, R&D platform, R&D orientation, innovation system and international cooperation, taking into account the current situation of China’s energy structure. The findings of this study will offer references and insights for China’s new energy system structure and new energy science and technology strategies.
Subjects: Nursing >> Nursing submitted time 2023-06-12
Abstract： Objective To investigate pre-examination and triage managements of outpatient of the dental clinic in general hospitals during the normalization prevention and control of COVID-19 epidemic. Methods According to the relevant guidelines for epidemic prevention and control, combined with the situation of dental clinic, a series of management plans for pre-examination and triage were developed, and the changes of outpatient distribution were analyzed statistically. Results From June to August 2020, the total number of outpatients in dental clinic was 3821, among whom, 3776 (98.82%) patients had normal temperature and their epidemiological questionnaire were negative. No suspected or confirmed COVID-19 patients were appeared, and no emergency management plan was carried out in the dental clinic. Conclusion The management plan of pre-examination and triage management in dental clinic, based on epidemiological investigation and risk classification of dental treatment, was conducive to screening high-risk patients, and improve efficiency.
Peer Review Status:
Awaiting Review
Subjects: Materials Science >> Materials Science (General) submitted time 2023-03-31 Cooperative journals: 《腐蚀科学与防护技术》
Abstract： The effect of cathodic polarization on stress corrosion cracking (SCC) behavior of Cring specimens of 7050 aluminum alloys of different aging states in 3.5% sodium chloride aqueous solution has been investigated, then the hydrogen content of the tested samples was measured by a hydrogen analyzer and the fractured alloy samples were examined by means of scanning electron microscope (SEM). The results showed that according to their aging states, the degree of susceptibility to SCC (Iscc) of 7050 aluminum alloy may be ranked as following: Iscc of under-aging (135 ℃/8 h)＞Iscc of peak-aging (135 ℃/16 h)＞Iscc of over-aging (135 ℃/24 h). When applying a cathodic polarization potential to C-ring specimen, the cathodic corrosion of 7050 aluminum alloy may promote the crack growth. For 7050 aluminum alloys after the same aging treatment, the hydrogen permeation rate of the C-ring fracture surface increased with shifting negatively the cathodic polarization, thus resulting in the increase of Iscc.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-31 Cooperative journals: 《农业图书情报学报》
Abstract： [Purpose/Significance] In order to meet the scientific and technological information needs of different subjects and improve the quality of scientific and technological novelty search, the challenges to the targeted scientific and technological novelty search are analyzed and corresponding countermeasures are put forward. [Method/Process] We introduce the connotation of targeted scientific and technological novelty search, sort out the methods of the novelty search, and analyze the challenges and put forward countermeasures. [Results/Conclusions] The challenges to the targeted scientific and technological novelty search include the precise search for the in-depth novelty content, the wide intersection of subject knowledge, the novelty search process focused on value and data, prevention of omission of literature retrieval in other languages, and consideration on both quality and efficiency. The targeted scientific and technological novelty search needs to build targeted literature resources, develop team cooperation services, strengthen the job competence of novelty searchers, and formulate guidelines and evaluation standards.
Subjects: Psychology >> Developmental Psychology submitted time 2023-03-28 Cooperative journals: 《心理科学进展》
Abstract： Previous studies have shown that sad music could evoke the aesthetic pleasure or other psychological benefits while inducing sadness. Based on these existing evidence, two major psychological theories have been proposed: one is the " dissociation theory ", the other is the" neutralization theory ". Both theories have been used to elaborate how sad music becomes pleasurable. However, neither can provide a comprehensive and reasonable explanation. Therefore, further exploration of the specific reward processing of sad music is of great significance. Future research need to clarify the neural basis of the existing psychological theories from the neurobiological perspectives.
Subjects: Psychology >> Social Psychology submitted time 2023-03-27 Cooperative journals: 《心理学报》
Abstract： Researches on deficits in emotion regulation of depression have mainly focused on the selection and application of emotion-regulation strategies; however, it remains unclear whether it is also related to emotion-regulation goals, i.e., the direction of emotion regulation. Situation selection is an antecedent-focused regulation strategy that is worked before the emotional reactions occur and it can be used as an index of emotional-regulation goals.In our current study, the event-related potential (ERP) technique was used to investigate the emotion-regulation goals of young adults with depression inclination. Participants were asked to freely select the emotion-inducing scenes in which they want to put themselves and to report their emotional preferences。ERP results revealed that the amplitudes of Late Positive Potential (LPP) were significantly decreased when viewing the sadness scene in young adults with depression inclination, and they selected to view sadness scene more frequently than healthy young adults. In addition, the ratings of sadness preferences were significantly higher among subjects with depression inclination, while the happiness preferences were lower.The current results suggest that, compared to the control group, the individuals with depression inclination are more willing to use situation selection to maintain or enhance their sadness rather than weaken it or enhance their happiness. These findings further indicate that emotion regulation goals of depressive subjects may be related to their motivations for selecting emotional stimulus, and provide a new perspective for exploring the causes and mechanisms of emotion regulation deficits in depressive disorders.
Subjects: Nursing >> Nursing submitted time 2023-03-06
Abstract： This paper summarized the construction objectives, construction ideas, construction measures and construction results of the experimental nursing center of Beijing University of Chinese Medicine, and reviewed the practical experience of the construction of the center, so as to provide reference for the development of nursing laboratory construction in other colleges and universities.
Peer Review Status:Awaiting Review
Subjects: Library Science，Information Science >> Library Science submitted time 2022-06-23
Abstract：
In order to effectively solve the complex rights and interests problems in the process of digital resource management, and build a set of systematic and standardized digital resource rights and interests management scheme available to digital library, this study reviews the research and practice status of digital resource rights and interests management system in library, This paper introduces the construction of the digital resource rights and interests management system of National Science Library, Chinese Academy of Sciences, including the construction background, target positioning, construction framework and function design, key business processes, technical methods, etc., and puts forward some thoughts on the future development of the digital resource rights and interests management system of the digital library.
Peer Review Status:Awaiting Review
Subjects: Psychology >> Applied Psychology submitted time 2021-11-05
Abstract： Motor learning by analogy is based on the principle that a simple biomechanical metaphor that makes motor behaviour easier to understand by integrating the complex rule structure of motor skills. In the process of motor skill learning, performance in response to instructions presented as an analogy is more robust under pressure, distracting situations and high-complexity decision-making conditions. However, the effect of analogy learning is affected by an individual’s motor level, the instruction content and an individual’s cognitive factors. This review contends that previous studies may have exaggerated the effect of working memory in analogy learning and proposes the attention focus-reinvestment-working memory model of motor skill learning by analogy in which attention focus, reinvestment and working memory jointly affect the improved performance in analogy learning. Further research can be carried out to balance the number of instructions, change the method of instruction provision, standardize the compilation and evaluation of instructions, focus on the selection of exercise tasks and elucidate the neural mechanism of analogy learning. "
Peer Review Status:Awaiting Review
Subjects: Geosciences >> Geography submitted time 2020-12-17 Cooperative journals: 《干旱区研究》
Abstract：内蒙古托克托县地下水普遍高氟、高盐，大部分不适合长期饮用，而位于县城西南的“神泉”，却因优良的水质成为该区域人民生活的主要水源。为了探寻“神泉”水的来源及其与周边地下水化学特征不同的原因，通过收集水文地质资料、实地踏勘及取样分析的基础上，利用Piper三线图法、Durov图法、地下水流动系统分析等方法对该泉水以及周边地下水进行对比分析并追溯其来源。结果表明：（1）“神泉”虽处于托克托县境内冲湖积平原排泄区并紧邻黄河，但其水质低氟高锶（HCO3-Ca型水）与黄河水（Cl-Na型水）及周边地下水（高氟、高TDS）有本质的不同。（2）“神泉”水与黄河水及周边地下水无明显的水力联系，其主要是由库布齐沙漠区地下水通过鄂尔多斯北缘断层，经由黄河河床淤泥下伏断裂通道补给形成，属于典型的断层泉。
Subjects: Biology >> Zoology submitted time 2018-12-24 Cooperative journals: 《动物营养学报》
Abstract：本试验旨在研究饲粮添加丁酸梭菌对断奶仔猪生长性能、肠道结构和免疫功能的影响。选取（25±1）日龄、体重（6.24±0.32） kg的健康“杜×长×大”杂交仔猪360头，随机分为5个组，每组4个重复，每个重复18头猪。对照组饲喂基础饲粮，试验组分别饲喂在基础饲粮中添加250、500、1 000和2 000 mg/kg丁酸梭菌的试验饲粮。试验期30 d。结果表明：1）250和1 000 mg/kg丁酸梭菌添加组断奶仔猪的平均日采食量(ADFI)显著低于对照组（P0.05）。结果提示，25～55日龄断奶仔猪饲粮添加250～500 mg/kg丁酸梭菌可改善断奶仔猪肠道结构，增强机体免疫功能。
Subjects: Biology >> Zoology submitted time 2017-10-23 Cooperative journals: 《动物营养学报》
Abstract：本文旨在应用Meta分析方法研究10～25 kg仔猪赖氨酸（Lys）需要量及其影响因素。本研究检索了1990年至2016年期间发表的有关仔猪Lys需要量的研究，根据文献筛选标准共17篇文献被纳入研究。用二次曲线（QC）模型、线性平台（LP）模型和曲线平台（CLP）模型估计了标准回肠可消化赖氨酸（SID Lys）需要量。结果表明：LP模型估计得到的SID Lys需要量较低，而QC和CLP模型的估计值较高且基本一致。其中，饲粮SID Lys含量变化不影响仔猪的平均日采食量（ADFI）（PQC=0.828 0，Plinear=0.584 4）；以平均日增重（ADG）和料重比（F/G）为因变量，SID Lys含量为自变量，用QC模型估计得出10～25 kg仔猪饲粮SID Lys需要量分别为1.280%（P<0.000 1）和1.260%（P<0.000 1）。饲粮类型以及遗传背景等因素影响SID Lys需要量。其中，玉米豆粕饲粮和非玉米豆粕饲粮的SID Lys需要量分别为1.307%（P=0.005 0）和1.138%（P=0.000 1）；中国地方猪种和瘦肉型猪种的SID Lys需要量分别为1.060%（P=0.001 2）和1.334%（P=0.004 3）。综上，为满足10～25 kg仔猪达到最佳生长性能，饲粮SID Lys需要量为1.230%～1.280%，同时应考虑饲粮类型以及猪的遗传背景等因素。
Subjects: Computer Science >> Computer Application Technology submitted time 2017-03-09
Abstract：生物信息学的贡献可以从两个层面来衡量，一方面是对生物学的贡献，即能否以数理的手段辅助生物学家（或者独立地）做出新的生物学发现 (discovery)；另一方面则是对计算机科学的贡献，即实际问题是算法研究的推动力和源泉，我们能否在解决实际问题的过程中，检验已有算法，并开发新的算法(algorithm)。本文的目的即是以蛋白质结构预测的FALCON 方法为样本，对上述两个层面的贡献做一阐述。简短地说，从生物学发现角度来讲，FALCON 的结果为“蛋白质结构构象数目是有限的”这一论断提供了定量的支持；从算法的角度讲，FALCON 实际上是一种新的优化框架，FALCON 能够大大降低搜索空间的大小，而经典的Monte Carlo 与Local search 始终维持一个相对较大的搜索空间。实验结果表明这种降低搜索空间大小的技术能够有效地提高搜索成功的可能性
Peer Review Status:Awaiting Review
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